西尾 尚美(ニシオ ナオミ)
教育学部 養護教諭養成課程 学校保健学講座准教授
教育学研究科

研究者情報

■ 学位
  • 人間科学, 早稲田大学
■ 研究分野
  • ライフサイエンス, 栄養学、健康科学, 栄養、老化
  • ライフサイエンス, 免疫学
■ 経歴
  • 2018年04月 - 現在, 埼玉大学教育学部, 学校保健学講座, 准教授
  • 2015年04月 - 現在, 名古屋市立大学大学院医学研究科, 細菌学分野, 研究員
  • 2012年10月 - 2015年09月, 名古屋大学大学院医学系研究科 分子細胞免疫学教室 特任助教
  • 2009年04月 - 2012年09月, 名古屋大学大学院医学系研究科 分子細胞免疫学教室 COE研究員
  • 2008年01月 - 2009年02月, 独立行政法人理化学研究所, BSI-トヨタ連携センター 生体防御連携ユニット, 研究員
  • 2006年10月 - 2007年03月, 名古屋大学大学院医学系研究科 分子細胞免疫学教室 研究員
■ 学歴
  • 2003年, 早稲田大学, 人間科学研究科, 日本国
  • 2003年, 早稲田大学

業績情報

■ 論文
  • Hen egg only diets support healthy aging in adult mice
    Naomi Nishio; Ken‐ichi Isobe
    Journal of Animal Physiology and Animal Nutrition, 巻:107, 号:4, 開始ページ:1110, 終了ページ:1124, 2023年01月, [査読有り]
    Abstract

    Hen eggs (eggs) are a conventional food, known to contain the nutrients required for the growth of chicken embryos. These eggs are rich in important proteins and fats, with a very low amount of carbohydrate, and include all of the vitamins and minerals needed for the development of mice. We found that mice fed eggs grew to the same weight as mice fed a normal chow diet (ND) and remained healthy until the 20‐months. As expected, the serological indicators of fat content were higher in egg‐only mice than in ND mice. However, surprisingly the serum glucose levels in the egg‐only mice were nearly identical to those in the ND mice. Given the high fat content in eggs, we expected that our egg‐only mice would develop fatty liver or other metabolic diseases. However, we observed no pathological changes in the livers of egg‐only mice until 20‐months with their serological indicators (ALT and AST) and histological features (no fat droplets) remaining normal. However, when we examined the pups nursed by mothers of the egg‐only diet group we noted that almost the animals died 2 to 4 weeks after birth. This is likely because these pups presented with reduced enzymes for metabolism in their liver when compared to pups of the ND group. In addition, we also found that the expression of various development proteins were severely lacking in liver of these pups. From these results, our report suggested that eggs could support healthy aging in adult mice, but not in pups.
    Wiley, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1111/jpn.13805
    DOI ID:10.1111/jpn.13805, ISSN:0931-2439, eISSN:1439-0396
  • 鶏卵のみでマウスは生まれ育つか?               
    磯部 健一; 西尾 尚美; 加藤 花奈; 鈴木 伶奈; 藤田 遥; 葛谷 亜美; 河村 真凛; 佐藤なつみ
    巻:13, 開始ページ:11, 終了ページ:17, 2021年, [査読有り]
  • Hen-egg suppresses fatty liver induced by sugar, glucose or fructose.
    Ken-ichi Isobe; Rena Suzuki; Kana Kato; Miki Kawai; Ami Kuzuya; Aoi Kanjya; Chiaki Suitou; Yui Nakano; Manae Nagasaki; Aki Hatanaka; Asuka Konno; Naomi Nishio
    Journal of Lipid Nutrition, 巻:30, 号:1, 開始ページ:43, 終了ページ:59, 2021年, [査読有り]
    Japan Society of Lipid Nutrition, 研究論文(学術雑誌)
    DOI:https://doi.org/10.4010/jln.30.43
    DOI ID:10.4010/jln.30.43, ISSN:1343-4594, eISSN:1883-2237
  • Are Mice Born Normally With an Egg-only Diet?               
    Ken-ichi Isobe; Naomi Nishio
    巻:3, 号:4, 開始ページ:132, 終了ページ:132, 2020年11月, [査読有り]
    DOI:https://doi.org/10.31021/brr.20203132
    DOI ID:10.31021/brr.20203132
  • Complete genome sequence of emm1 Streptococcus pyogenes 10-85, a strain isolated from a patient with streptococcal toxic shock syndrome in Japan               
    Ichiro Tatsuno; Masanori Isaka; Masakado Matsumoto; Naomi Nishio; Hideyuki Matsui; Tadao Hasegawa
    Microbiology Resource Announcements, 巻:8, 号:24, 2019年01月, [査読有り], [国際誌]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1128/MRA.00453-19
    DOI ID:10.1128/MRA.00453-19, PubMed ID:31196924, PubMed Central ID:PMC6588041, SCOPUS ID:85068464176
  • Female GADD34 mice develop age-related inflammation and hepatocellular carcinoma               
    Naomi Nishio; Tadao Hasegawa; Ichiro Tatsuno; Masanori Isaka; Ken-ichi Isobe
    GERIATRICS & GERONTOLOGY INTERNATIONAL, 巻:17, 号:12, 開始ページ:2593, 終了ページ:2601, 2017年12月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1111/ggi.13080
    DOI ID:10.1111/ggi.13080, ISSN:1444-1586, eISSN:1447-0594, PubMed ID:28635009, Web of Science ID:WOS:000418347300043
  • Immunological aspects of age-related diseases.               
    Ken-Ichi Isobe; Naomi Nishio; Tadao Hasegawa
    World journal of biological chemistry, 巻:8, 号:2, 開始ページ:129, 終了ページ:137, 2017年05月, [査読有り], [国際誌]
    The proportion of elderly people rises in the developed countries. The increased susceptibility of the elderly to infectious diseases is caused by immune dysfunction, especially T cell functional decline. Age-related hematopoietic stem cells deviate from lymphoid lineage to myeloid lineage. Thymus shrinks early in life, which is followed by the decline of naïve T cells. T-cell receptor repertoire diversity declines by aging, which is caused by cytomegalovirus-driven T cell clonal expansion. Functional decline of B cell induces antibody affinity declines by aging. Many effector functions including phagocytosis of myeloid cells are down regulated by aging. The studies of aging of myeloid cells have some controversial results. Although M1 macrophages have been shown to be replaced by anti-inflammatory (M2) macrophages by advanced age, many human studies showed that pro-inflammatory cytokines are elevated in older human. To solve this discrepancy here we divide age-related pathological changes into two categories. One is an aging of immune cell itself. Second is involvement of immune cells to age-related pathological changes. Cellular senescence and damaged cells in aged tissue recruit pro-inflammatory M1 macrophages, which produce pro-inflammatory cytokines and proceed to age-related diseases. Underlying biochemical and metabolic studies will open nutritional treatment.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.4331/wjbc.v8.i2.129
    DOI ID:10.4331/wjbc.v8.i2.129, PubMed ID:28588756, PubMed Central ID:PMC5439164
  • GADD34 Promotes Tumor Growth by Inducing Myeloid-derived Suppressor Cells               
    Lintao Liu; Sachiko Ito; Naomi Nishio; Yang Sun; Yuriko Tanaka; Ken-Ichi Isobe
    ANTICANCER RESEARCH, 巻:36, 号:9, 開始ページ:4623, 終了ページ:4628, 2016年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.21873/anticanres.11012
    DOI ID:10.21873/anticanres.11012, ISSN:0250-7005, eISSN:1791-7530, PubMed ID:27630304, Web of Science ID:WOS:000384001800032
  • Recruitment of Gr1(+)CD11b(+)F4/80(+)Population in the Bone Marrow and Spleen by Irradiation-Induced Pulmonary Damage (vol 38, pg 465, 2015)               
    Suganya Thanasegaran; Sachiko Ito; Naomi Nishio; Mohammad Nizam Uddin; Yang Sun; Ken-ichi Isobe
    INFLAMMATION, 巻:39, 号:1, 開始ページ:499, 終了ページ:500, 2016年02月, [査読有り]
    英語
    DOI:https://doi.org/10.1007/s10753-015-0216-z
    DOI ID:10.1007/s10753-015-0216-z, ISSN:0360-3997, eISSN:1573-2576, PubMed ID:26238279, Web of Science ID:WOS:000370083500055
  • Thymic Epithelial Cells Induced from Pluripotent Stem Cells by a Three-Dimensional Spheroid Culture System Regenerates Functional T Cells in Nude Mice               
    Motohito Okabe; Sachiko Ito; Naomi Nishio; Yuriko Tanaka; Ken-Ichi Isobe
    CELLULAR REPROGRAMMING, 巻:17, 号:5, 開始ページ:368, 終了ページ:375, 2015年10月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1089/cell.2015.0006
    DOI ID:10.1089/cell.2015.0006, ISSN:2152-4971, eISSN:2152-4998, PubMed ID:26348437, Web of Science ID:WOS:000361523600006
  • GADD34 Facilitates Cell Death Resulting from Proteasome Inhibition               
    Lintao Liu; Sachiko Ito; Naomi Nishio; Yang Sun; Nana Chen; Yuriko Tanaka; Ken-ichi Isobe
    ANTICANCER RESEARCH, 巻:35, 号:10, 開始ページ:5317, 終了ページ:5324, 2015年10月, [査読有り]
    英語, 研究論文(学術雑誌)
    ISSN:0250-7005, eISSN:1791-7530, PubMed ID:26408692, Web of Science ID:WOS:000361823200020
  • Effects of growth arrest and DNA damage-inducible protein 34 (GADD34) on inflammation-induced colon cancer in mice               
    Yuriko Tanaka; Sachiko Ito; Reina Oshino; Nana Chen; Naomi Nishio; Ken-ichi Isobe
    BRITISH JOURNAL OF CANCER, 巻:113, 号:4, 開始ページ:669, 終了ページ:679, 2015年08月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/bjc.2015.263
    DOI ID:10.1038/bjc.2015.263, ISSN:0007-0920, eISSN:1532-1827, PubMed ID:26196182, Web of Science ID:WOS:000359438300013
  • GADD34-deficient mice develop obesity, nonalcoholic fatty liver disease, hepatic carcinoma and insulin resistance               
    Naomi Nishio; Ken-ichi Isobe
    SCIENTIFIC REPORTS, 巻:5, 開始ページ:13519, 2015年08月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/srep13519
    DOI ID:10.1038/srep13519, ISSN:2045-2322, PubMed ID:26316333, Web of Science ID:WOS:000360239500001
  • Growth arrest and DNA damage-inducible protein (GADD34) enhanced liver inflammation and tumorigenesis in a diethylnitrosamine (DEN)-treated murine model               
    Nana Chen; Naomi Nishio; Sachiko Ito; Yuriko Tanaka; Yang Sun; Ken-ichi Isobe
    CANCER IMMUNOLOGY IMMUNOTHERAPY, 巻:64, 号:6, 開始ページ:777, 終了ページ:789, 2015年06月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s00262-015-1690-8
    DOI ID:10.1007/s00262-015-1690-8, ISSN:0340-7004, eISSN:1432-0851, PubMed ID:25832002, Web of Science ID:WOS:000355775500014
  • Recruitment of Gr1(+)CD11b(+)F4/80(+) Population in the Bone Marrow and Spleen by Irradiation-Induced Pulmonary Damage               
    Suganya Thanasegaran; Sachiko Ito; Naomi Nishio; Mohammad Nizam Uddin; Yang Sun; Ken-ichi Isobe
    INFLAMMATION, 巻:38, 号:2, 開始ページ:465, 終了ページ:475, 2015年04月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s10753-014-9952-8
    DOI ID:10.1007/s10753-014-9952-8, ISSN:0360-3997, eISSN:1573-2576, PubMed ID:25008148, Web of Science ID:WOS:000350553800001
  • GADD34 inhibits activation-induced apoptosis of macrophages through enhancement of autophagy               
    Sachiko Ito; Yuriko Tanaka; Reina Oshino; Keiko Aiba; Suganya Thanasegaran; Naomi Nishio; Ken-ichi Isobe
    SCIENTIFIC REPORTS, 巻:5, 開始ページ:8327, 2015年02月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/srep08327
    DOI ID:10.1038/srep08327, ISSN:2045-2322, PubMed ID:25659802, Web of Science ID:WOS:000348990600016
  • Reprint of "iPSCs, aging and age-related diseases"               
    Ken-Ichi Isobe; Zhao Cheng; Naomi Nishio; Thanasegan Suganya; Yuriko Tanaka; Sachiko Ito
    NEW BIOTECHNOLOGY, 巻:32, 号:1, 開始ページ:169, 終了ページ:179, 2015年01月, [査読有り]
    英語
    DOI:https://doi.org/10.1016/j.nbt.2014.11.002
    DOI ID:10.1016/j.nbt.2014.11.002, ISSN:1871-6784, eISSN:1876-4347, PubMed ID:25479728, Web of Science ID:WOS:000347507800021
  • Enhancement of the Acrolein-Induced Production of Reactive Oxygen Species and Lung Injury by GADD34               
    Yang Sun; Sachiko Ito; Naomi Nishio; Yuriko Tanaka; Nana Chen; Lintao Liu; Ken-ichi Isobe
    OXIDATIVE MEDICINE AND CELLULAR LONGEVITY, 巻:2015, 開始ページ:170309, 2015年, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1155/2015/170309
    DOI ID:10.1155/2015/170309, ISSN:1942-0900, eISSN:1942-0994, PubMed ID:25821552, Web of Science ID:WOS:000351601500001
  • iPSCs, aging and age-related diseases               
    Ken-ichi Isobe; Zhao Cheng; Naomi Nishio; Thanasegan Suganya; Yuriko Tanaka; Sachiko Ito
    NEW BIOTECHNOLOGY, 巻:31, 号:5, 開始ページ:411, 終了ページ:421, 2014年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.nbt.2014.04.004
    DOI ID:10.1016/j.nbt.2014.04.004, ISSN:1871-6784, eISSN:1876-4347, PubMed ID:24784583, Web of Science ID:WOS:000341314700003
  • Acrolein induced both pulmonary inflammation and the death of lung epithelial cells               
    Yang Sun; Sachiko Ito; Naomi Nishio; Yuriko Tanaka; Nana Chen; Ken-ichi Isobe
    TOXICOLOGY LETTERS, 巻:229, 号:2, 開始ページ:384, 終了ページ:392, 2014年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.toxlet.2014.06.021
    DOI ID:10.1016/j.toxlet.2014.06.021, ISSN:0378-4274, eISSN:1879-3169, PubMed ID:24999835, Web of Science ID:WOS:000340045700008
  • Negative Regulation of GADD34 on Myofibroblasts during Cutaneous Wound Healing               
    Lintao Liu; Naomi Nishio; Sachiko Ito; Yuriko Tanaka; Ken-ichi Isobe
    BIOMED RESEARCH INTERNATIONAL, 巻:2014, 開始ページ:137049, 2014年, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1155/2014/137049
    DOI ID:10.1155/2014/137049, ISSN:2314-6133, eISSN:2314-6141, PubMed ID:25210702, Web of Science ID:WOS:000347824500001
  • [Accuracy estimation of non-invasive X-ray output analyzer].               
    Ioka Y; Ariga E; Nishio N; Ooshima T
    Nihon Hoshasen Gijutsu Gakkai zasshi, 巻:69, 号:10, 開始ページ:1153, 終了ページ:1160, 2013年10月, [査読有り]
    This study estimated the accuracy of an X-ray analyzer by comparing it with an ionization chamber and a tube voltage current meter, and investigated whether it was usable as a substitute for a reference meter for output measurements for quality control purposes. The X-ray output analyzer used was a Piranha (RTI Electronics), a non-invasive instrument. The two subjects of measurements were as follows: the tube voltage, exposure, and half-value layer used in ordinary X-ray radiographic system equipment, and the exposure and half-value layer in X-ray equipment for mammographic systems. The results for a conventional radiographic system showed the error rates for tube voltage, exposure, and half value layer to be within ±1.0%, ±1.8%, and ±4.3%, respectively. The Piranha is not influenced by the dependence of the beam quality in a range of the tube voltage in clinical use. In X-ray equipment for mammographic system results, error rates for exposure and half value layer were ±2.2% and within ±4.0%, respectively. We conclude that it is possible to use the Piranha as an alternative reference meter for quality control of X-ray equipment for typical radiographic and mammographic systems.
    Japanese Society of Radiological Technology, 日本語
    DOI:https://doi.org/10.6009/jjrt.2013_JSRT_69.10.1153
    DOI ID:10.6009/jjrt.2013_JSRT_69.10.1153, ISSN:0369-4305, CiNii Articles ID:10031196868, CiNii Books ID:AN00197784, PubMed ID:24140904
  • Characteristics of cardiac aging in C57BL/6 mice               
    Zhao Cheng; Sachiko Ito; Naomi Nishio; Suganya Thanasegaran; He Fang; Ken-ichi Isobe
    EXPERIMENTAL GERONTOLOGY, 巻:48, 号:3, 開始ページ:341, 終了ページ:348, 2013年03月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.exger.2013.01.005
    DOI ID:10.1016/j.exger.2013.01.005, ISSN:0531-5565, PubMed ID:23337778, Web of Science ID:WOS:000315683800006
  • iPS cell sheets created by a novel magnetite tissue engineering method for reparative angiogenesis               
    Tetsutaro Kito; Rei Shibata; Masakazu Ishii; Hirohiko Suzuki; Tatsuhito Himeno; Yoshiyuki Kataoka; Yumiko Yamamura; Takashi Yamamoto; Naomi Nishio; Sachiko Ito; Yasushi Numaguchi; Tohru Tanigawa; Jun K. Yamashita; Noriyuki Ouchi; Hiroyuki Honda; Kenichi Isobe; Toyoaki Murohara
    SCIENTIFIC REPORTS, 巻:3, 開始ページ:1418, 2013年03月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/srep01418
    DOI ID:10.1038/srep01418, ISSN:2045-2322, PubMed ID:23475393, Web of Science ID:WOS:000315852100004
  • No immunogenicity of IPS cells in syngeneic host studied by in vivo injection and 3D scaffold experiments.               
    Suganya Thanasegaran; Zhao Cheng; Sachiko Ito; Naomi Nishio; Ken-ichi Isobe
    BioMed research international, 巻:2013, 開始ページ:378207, 終了ページ:378207, 2013年, [査読有り], [国際誌]
    Induced Pluripotent Stem Cells (IPSCs) open the great possibility to employ patient's own tissue to the previously incurable diseases. However these cells can be used in cell therapy only if they are not rejected when transplanted back into the syngeneic host. We found that the injection of iPSCs derived from different ages of mice into syngeneic C57BL/6 mice produced teratoma and was not rejected. Then we cultured iPSCs and myeloid differentiated iPSCs in three-dimensional porous scaffold and transplanted to C57BL/6 mice and BALB/C mice. After transplantation, we could observe the cell density inside the scaffold increased rapidly in syngeneic mice compared to the allogeneic mice indicating the favorable conditions supporting the growth of iPSCs in vivo. Unlike the allogeneic counterpart, we could not observe few infiltrating T cells inside the scaffold of syngeneic mice. These results contribute to the optimistic view of iPSCs for regenerative medicine in near future.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1155/2013/378207
    DOI ID:10.1155/2013/378207, ISSN:2314-6133, PubMed ID:23691499, PubMed Central ID:PMC3652117
  • Establishment of self-renewable GM-CSF-dependent immature macrophages in vitro from murine bone marrow.               
    Sachiko Ito; Yuriko Tanaka; Naomi Nishio; Suganya Thanasegaran; Ken-Ichi Isobe
    PloS one, 巻:8, 号:10, 開始ページ:e76943, 2013年, [査読有り], [国際誌]
    Macrophages play a key role in the innate immune system. Macrophages are thought to originate from hematopoietic precursors or the yolk sac. Here, we describe the in vitro establishment of self-renewable GM-CSF-dependent immature macrophages (GM-IMs) from murine bone marrow (BM). GM-IMs grow continuously in vitro in conditioned medium containing GM-CSF. The immunophenotype of GM-IMs is F4/80(high) CD11b(high) CD11c(low) Ly6C(low). By comparing gene expression in GM-IMs and BM dendritic cells, we found that GM-IMs expressed lower levels of chemokines, cytokines and their receptors. GM-IMs are round in shape, attach loosely to non-coated culture dishes and have a marked phagocytic capacity. These results indicate that GM-IMs are macrophage precursor cells. Following stimulation with LPS, monocyte-like GM-IMs converted to flat macrophage-like cells that tightly adhered to non-coated culture dishes and produced pro-inflammatory cytokines TNFα, IL-6 and IL-1β. These results indicated that GM-IMs differentiated to M1 pro-inflammatory macrophages. This was confirmed by stimulation of GM-IMs with IFNγ, an inducer of M1 markers. GM-IMs showed enhanced expression of M2 macrophage markers such as Arg1 and Retnla following stimulation by Th2 cytokines IL-4 and IL-13. When GM-IMs were injected into mice at sites of wounding, wound repair was enhanced. These results indicate that GM-IMs can differentiate to M2 macrophages. When GM-IMs were injected into clodronate-treated mice, they induced resident macrophage proliferation by producing M-CSF. In conclusion we have established self-renewable GM-CSF-dependent immature macrophages in vitro from murine BM, which differentiate to M1 or M2 macrophages.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1371/journal.pone.0076943
    DOI ID:10.1371/journal.pone.0076943, PubMed ID:24124601, PubMed Central ID:PMC3790761
  • Comparative Angiogenic Activities of Induced Pluripotent Stem Cells Derived from Young and Old Mice               
    Hirohiko Suzuki; Rei Shibata; Tetsutaro Kito; Takashi Yamamoto; Masakazu Ishii; Naomi Nishio; Sachiko Ito; Ken-ichi Isobe; Toyoaki Murohara
    PLOS ONE, 巻:7, 号:6, 開始ページ:e39562, 2012年06月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1371/journal.pone.0039562
    DOI ID:10.1371/journal.pone.0039562, ISSN:1932-6203, PubMed ID:22761825, Web of Science ID:WOS:000305825800043
  • Autophagic activity in thymus and liver during aging               
    Mohammad Nizam Uddin; Naomi Nishio; Sachiko Ito; Haruhiko Suzuki; Ken-ichi Isobe
    AGE, 巻:34, 号:1, 開始ページ:75, 終了ページ:85, 2012年02月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s11357-011-9221-9
    DOI ID:10.1007/s11357-011-9221-9, ISSN:0161-9152, PubMed ID:21387084, Web of Science ID:WOS:000299294100007
  • Analysis of β-Amyloid Peptide -Binding Proteins in Microglial Cells               
    Sachiko Ito
    The Open Geriatric Medicine Journal, 巻:5, 号:1, 開始ページ:1, 終了ページ:6, 2012年01月, [査読有り]
    Bentham Science Publishers Ltd., 研究論文(学術雑誌)
    DOI:https://doi.org/10.2174/1874827901205010001
    DOI ID:10.2174/1874827901205010001, ISSN:1874-8279
  • 3D-aggregated dermal stem cells with partial-pluripotency               
    Masaki Kondo; Hideki Kamiya; Tetsuji Okawa; Sachiko Ito; Naomi Nishio; Tatsuhito Himeno; Yutaka Oiso; Jiro Nakamura; Ken-Ichi Isobe
    2012 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2012, 開始ページ:156, 終了ページ:159, 2012年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
    DOI:https://doi.org/10.1109/MHS.2012.6492401
    DOI ID:10.1109/MHS.2012.6492401, SCOPUS ID:84876543437
  • Establishment of neutrophil-lineage stem cells from C57BL/6 mice.               
    Naomi Nishio; Sachiko Ito; Yuriko Tanaka; Ken-ichi Isobe
    2012 INTERNATIONAL SYMPOSIUM ON MICRO-NANOMECHATRONICS AND HUMAN SCIENCE (MHS), 開始ページ:160, 終了ページ:163, 2012年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
    ISSN:2474-378X, eISSN:2474-3798, Web of Science ID:WOS:000318860500034
  • Possibility to use iPS-technology in age-related diseases               
    Zhao Cheng; Sachiko Ito; Naomi Nishio; Thanasegaran Suganya; Ken-ichi Isobe
    2012 INTERNATIONAL SYMPOSIUM ON MICRO-NANOMECHATRONICS AND HUMAN SCIENCE (MHS), 開始ページ:116, 終了ページ:120, 2012年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
    ISSN:2474-378X, eISSN:2474-3798, Web of Science ID:WOS:000318860500026
  • Aging in the mouse and perspectives of rejuvenation through induced pluripotent stem cells (iPSCs).               
    Ken-ichi Isobe; Zhao Cheng; Sachiko Ito; Naomi Nishio
    Results and problems in cell differentiation, 巻:55, 開始ページ:413, 終了ページ:27, 2012年, [査読有り], [国際誌]
    The mouse is a perfect model to study aging in mammals. It has a relatively short life span and genetic manipulations in this species are well established. Most interestingly, the mouse is a fantastic tool to produce stem cells. Forced expression of only four transcription factors (Oct3/4, Sox2, Klf4, and c-Myc) in murine and human somatic cells resets the expression of genes that are characteristic of differentiated cells and consequently induces the formation of pluripotent stem cells (iPSCs). This technology opens new and exciting possibilities in medical research, especially personalized cell therapies for treating human disease. To treat damaged tissues or repair organs in elderly patients, it will be necessary to establish iPSCs from their tissues. To determine the feasibility of using this technology with elderly patients, we asked whether it was indeed possible to establish iPSCs from the tissues of aged mice and to differentiate them to tissue cells. We succeeded in establishing iPSC clones using bone marrow (BM) from 21-month-old EGFP-C57BL/6 mice, which had been cultured for 4 days in the presence of granulocyte macrophage-colony stimulating factor (GM-CSF). Our iPSCs from aged mice (aged iPSCs) and those from mouse embryonic fibroblasts (MEFs) strongly expressed SSEA-1 and Pou5f1, and showed strong alkaline phosphatase (AP) activity. Our aged iPSCs made teratomas when injected into the back skin of syngeneic mice, and differentiated to tissue cells of three germ lines in vitro. Further experiments to make chimeric mice and germ line cells will determine whether the aged iPSCs possess the properties of much younger cells and are capable of regenerating aged mice.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/978-3-642-30406-4_21
    DOI ID:10.1007/978-3-642-30406-4_21, ISSN:0080-1844, PubMed ID:22918818
  • Dextran sulphate sodium increases splenic Gr1+CD11b+ cells which accelerate recovery from colitis following intravenous transplantation               
    R. Zhang; S. Ito; N. Nishio; Z. Cheng; H. Suzuki; K. I. Isobe
    Clinical and Experimental Immunology, 巻:164, 号:3, 開始ページ:417, 終了ページ:427, 2011年06月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1111/j.1365-2249.2011.04374.x
    DOI ID:10.1111/j.1365-2249.2011.04374.x, ISSN:0009-9104, PubMed ID:21413942, SCOPUS ID:79955417245
  • Establishment of induced pluripotent stem cells from aged mice using bone marrow-derived myeloid cells               
    Zhao Cheng; Sachiko Ito; Naomi Nishio; Hengyi Xiao; Rong Zhang; Haruhiko Suzuki; Yayoi Okawa; Toyoaki Murohara; Ken-ichi Isobe
    JOURNAL OF MOLECULAR CELL BIOLOGY, 巻:3, 号:2, 開始ページ:91, 終了ページ:98, 2011年04月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1093/jmcb/mjq044
    DOI ID:10.1093/jmcb/mjq044, ISSN:1674-2788, eISSN:1759-4685, PubMed ID:21228011, Web of Science ID:WOS:000289306800004
  • Gadd34 induces autophagy through the suppression of the mTOR pathway during starvation               
    Mohammad Nizam Uddin; Sachiko Ito; Naomi Nishio; Thanasegaran Suganya; Ken-ichi Isobe
    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 巻:407, 号:4, 開始ページ:692, 終了ページ:698, 2011年04月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.bbrc.2011.03.077
    DOI ID:10.1016/j.bbrc.2011.03.077, ISSN:0006-291X, PubMed ID:21439266, Web of Science ID:WOS:000290240500012
  • Differentiation of induced pluripotent stem cells to thymic epithelial cells by phenotype               
    Yuta Inami; Tohru Yoshikai; Sachiko Ito; Naomi Nishio; Haruhiko Suzuki; Hidetoshi Sakurai; Ken-Ichi Isobe
    IMMUNOLOGY AND CELL BIOLOGY, 巻:89, 号:2, 開始ページ:314, 終了ページ:321, 2011年02月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/icb.2010.96
    DOI ID:10.1038/icb.2010.96, ISSN:0818-9641, PubMed ID:20680027, Web of Science ID:WOS:000287445400021
  • Up-regulation of Gr1+CD11b+ population in spleen of dextran sulfate sodium administered mice works to repair colitis.               
    Rong Zhang; Sachiko Ito; Naomi Nishio; Zhao Cheng; Haruhiko Suzuki; Ken-ichi Isobe
    Inflammation & allergy drug targets, 巻:10, 号:1, 開始ページ:39, 終了ページ:46, 2011年02月, [査読有り], [国際誌]
    Dextran sulfate sodium (DSS) is commonly used in rodent IBD models to chemically induce acute intestinal inflammation. The acute course of colitis includes colon tissue damages and recovery from wounded tissues. As skin wound repair was delayed by splenectomy, we asked whether splenectomy would induce the delay of colonic wound healing. In splenectomized mice, body weight recovery, disease score and colon length were delayed. Surprisingly we found a great increase of Gr1+CD11b+ cells in spleen and bone marrow of DSS-administered mice. Anti-Gr-1 antibody treatment worsened the DSS- administered colitis. These results indicate that Gr1+CD11b+ cells induced by DSS worked to repair colon wound healing and repair colitis.
    英語, 研究論文(学術雑誌)
    ISSN:1871-5281, eISSN:2212-4055, PubMed ID:21184649
  • Toxic effects of D-galactose on thymus and spleen that resemble aging               
    Mohammad Nizam Uddin; Naomi Nishio; Sachiko Ito; Haruhiko Suzuki; Ken-ichi Isobe
    JOURNAL OF IMMUNOTOXICOLOGY, 巻:7, 号:3, 開始ページ:165, 終了ページ:173, 2010年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3109/15476910903510806
    DOI ID:10.3109/15476910903510806, ISSN:1547-691X, PubMed ID:20050818, Web of Science ID:WOS:000281919600003
  • Therapeutic angiogenesis by transplantation of induced pluripotent stem cell-derived Flk-1 positive cells               
    Hirohiko Suzuki; Rei Shibata; Tetsutaro Kito; Masakazu Ishii; Ping Li; Toru Yoshikai; Naomi Nishio; Sachiko Ito; Yasushi Numaguchi; Jun K. Yamashita; Toyoaki Murohara; Kenichi Isobe
    BMC CELL BIOLOGY, 巻:11, 開始ページ:72, 2010年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1186/1471-2121-11-72
    DOI ID:10.1186/1471-2121-11-72, ISSN:1471-2121, PubMed ID:20860813, Web of Science ID:WOS:000283075600001
  • GADD34 suppresses wound healing by upregulating expression of myosin IIA               
    Chie Tanaka; Sachiko Ito; Naomi Nishio; Yasuhiro Kodera; Hidetoshi Sakurai; Haruhiko Suzuki; Akimasa Nakao; Ken-Ichi Isobe
    TRANSGENIC RESEARCH, 巻:19, 号:4, 開始ページ:637, 終了ページ:645, 2010年08月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s11248-009-9347-z
    DOI ID:10.1007/s11248-009-9347-z, ISSN:0962-8819, PubMed ID:20625881, Web of Science ID:WOS:000279844300011
  • Effect of Aging on Auto-Antibodies to Wounded Tissues~!2010-03-17~!2010-04-30~!2010-06-17~!               
    Naomi Nishio; Sachiko Ito; Haruhiko Suzuki; Yayoi Okawa; Ken-ichi Isobe
    The Open Geriatric Medicine Journal, 巻:3, 号:1, 開始ページ:17, 終了ページ:24, 2010年07月, [査読有り]
    Bentham Science Publishers Ltd., 研究論文(学術雑誌)
    DOI:https://doi.org/10.2174/1874827901003010017
    DOI ID:10.2174/1874827901003010017, ISSN:1874-8279
  • The wound repair is control by monocyte linage cells               
    Naomi Nishio; Sachiko Ito; Yayoi Okawa; Ken-Ichi Isobe
    2010 International Symposium on Micro-NanoMechatronics and Human Science: From Micro and Nano Scale Systems to Robotics and Mechatronics Systems, MHS 2010, Micro-Nano GCOE 2010, Bio-Manipulation 2010, 開始ページ:278, 終了ページ:282, 2010年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
    DOI:https://doi.org/10.1109/MHS.2010.5669544
    DOI ID:10.1109/MHS.2010.5669544, SCOPUS ID:78751481881
  • Antibodies to wounded tissue enhance cutaneous wound healing               
    Naomi Nishio; Sachiko Ito; Haruhiko Suzuki; Ken-Ichi Isobe
    IMMUNOLOGY, 巻:128, 号:3, 開始ページ:369, 終了ページ:380, 2009年11月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1111/j.1365-2567.2009.03119.x
    DOI ID:10.1111/j.1365-2567.2009.03119.x, ISSN:0019-2805, PubMed ID:20067537, Web of Science ID:WOS:000270588300007
  • [Age-related decline of immune function and age-related diseases].               
    Ken-ichi Isobe; Naomi Nishio; Sachiko Ito
    Nihon rinsho. Japanese journal of clinical medicine, 巻:67, 号:7, 開始ページ:1327, 終了ページ:31, 2009年07月, [査読有り], [国内誌]
    Effects of aging on immune system are widespread. The development of T and B cells declines with age. The functions of matured T and B cell also decline with age. Consequently, infections present major clinical problems for elderly patients. Many of age-related diseases are related to innate immunity. For example, the pathogenesis of atherosclerosis and Alzheimer disease are related to macrophages (microglia). The Ox-LDL or A-beta induces macrophages or microglia to produce inflammatory cytokines, chemokines and matrix metalloproteinases. Recently neutrophils have been shown to be an important immune cells in atherosclerosis. Neutrophils secrete inflammatory cytokines. In wound healing neutrophils also work as first important immune cells, which affect age-related decline of wound repair.
    日本語, 研究論文(学術雑誌)
    ISSN:0047-1852, PubMed ID:19591280
  • Injection of bleomycin in newborn mice induces autoimmune sialitis that is transferred by CD4 T cells               
    Hideaki Ishikawa; Sachiko Ito; Naomi Nishio; Yukio Yuzawa; Sei-ichi Matsuo; Ken-ichi Isobe
    IMMUNOLOGY AND CELL BIOLOGY, 巻:87, 号:4, 開始ページ:351, 終了ページ:358, 2009年05月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1038/icb.2009.1
    DOI ID:10.1038/icb.2009.1, ISSN:0818-9641, PubMed ID:19204734, Web of Science ID:WOS:000266208800013
  • Thymic Involution Correlates with Severe Ulcerative Colitis Induced by Oral Administration of Dextran Sulphate Sodium in C57BL/6 Mice but not in BALB/c Mice               
    Shin Sasaki; Yoshiyuki Ishida; Naomi Nishio; Sachiko Ito; Ken-ichi Isobe
    INFLAMMATION, 巻:31, 号:5, 開始ページ:319, 終了ページ:328, 2008年10月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s10753-008-9081-3
    DOI ID:10.1007/s10753-008-9081-3, ISSN:0360-3997, PubMed ID:18696222, Web of Science ID:WOS:000260059800005
  • Neutrophil depletion delays wound repair in aged mice               
    Naomi Nishio; Yayoi Okawa; Hidetoshi Sakurai; Ken-ichi Isobe
    AGE, 巻:30, 号:1, 開始ページ:11, 終了ページ:19, 2008年03月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s11357-007-9043-y
    DOI ID:10.1007/s11357-007-9043-y, ISSN:0161-9152, PubMed ID:19424869, Web of Science ID:WOS:000255964700002
  • Efficient induction of osteogenic and chondrogenic progenitors and myogenic progenitors from mouse ES cells in chemically defined medium               
    Hidetoshi Sakurai; Yuta Inami; Naomi Nishio; Tohru Yoshikai; Ken-Ichi Isobe
    2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, 開始ページ:487, 終了ページ:490, 2008年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
    DOI:https://doi.org/10.1109/MHS.2008.4752501
    DOI ID:10.1109/MHS.2008.4752501, SCOPUS ID:62449169784
  • Paraxial mesodermal progenitors derived from mouse embryonic stem cells contribute to muscle regeneration via differentiation into muscle satellite cells               
    Hidetoshi Sakurai; Yayoi Okawa; Yuta Inami; Naomi Nishio; Ken-ichi Isobea
    STEM CELLS, 巻:26, 号:7, 開始ページ:1865, 終了ページ:1873, 2008年, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1634/stemcells.2008-0173
    DOI ID:10.1634/stemcells.2008-0173, ISSN:1066-5099, PubMed ID:18450822, Web of Science ID:WOS:000258004400022
  • Differential effects of physical and psychological stressors on immune functions of rats               
    K Oishi; N Nishio; K Konishi; M Shimokawa; T Okuda; T Kuriyama; K Machida
    STRESS-THE INTERNATIONAL JOURNAL ON THE BIOLOGY OF STRESS, 巻:6, 号:1, 開始ページ:33, 終了ページ:40, 2003年03月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/1025389031000101330
    DOI ID:10.1080/1025389031000101330, ISSN:1025-3890, PubMed ID:12637205, Web of Science ID:WOS:000184580400006
  • SST-2 tumor inoculation is a useful model for studying the anti-tumor immune response in SHR rats               
    Naomi Nishio; Katsutaka Oishi; Kazuhiko Machida
    Environmental Health and Preventive Medicine, 巻:8, 号:1, 開始ページ:1, 終了ページ:5, 2003年, [査読有り]
    Japanese Society for Hygiene, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/BF02897936
    DOI ID:10.1007/BF02897936, ISSN:1342-078X, PubMed ID:21432108, SCOPUS ID:0037358027
  • [The effect of chronic stress on neutrophil function in tumor-inoculated rats].               
    Nishio N; Fujioka Y; Midorikawa T; Ishizaki K; Machida K
    Nihon eiseigaku zasshi. Japanese journal of hygiene, 巻:57, 号:4, 開始ページ:655, 終了ページ:660, 2003年01月, [査読有り]
    Objectives: In order to clarify the relation between stress load and inoculated tumor growth in conjunction with neutrophil functions, several kinds of stress such as physical (Ph) and psychological (Ps) stress were loaded on rats either SST-2 tumor cell inoculated or control, and the functions of their peripheral neutrophils were determined.
    Methods: A communication box was used for stress load on rats. SST-2 cells were inoculated in to rats in the tumor-inoculation groups. Two weeks after inoculation, the tumors were removed from the backs of the rats and weighed. The functions of neutrophils in the peripheral blood collected from the tail vein, were determined by the NBT deoxidization method.
    Results: Tumor growth was enhanced when rats were loaded with either Ph or Ps stresses, but was inhibited when tumor cells were inoculated following either Ph or Ps stresses. These results show that chronological differences of loaded stresses influence immunological functions differently. The O2- production from the neutrophils stimulated by NBT-treated Staphilococcus aureus was suppressed in tumor-inoculated Ph and Ps groups, more markedly in the tumor-inoculated Ph group. It is logically relevant that the size of tumors increased in these groups, predominantly in the tumor-inoculated Ph group. On the other hand, O2- production from the neutrophils was enhanced and tumor growth decreased in tumor-inoculated animals following either Ph or Ps stresses.
    Conclusions: Our experiments, it revealed that the function of neutrophils is strongly enhanced by stress load and O2- production is inhibited by the tumor inoculation as shown in stimulation tests. Therefore, our findings suggested that neutrophils may participate in the inhibition of tumor growth.
    日本衛生学会, 日本語
    DOI:https://doi.org/10.1265/jjh.57.655
    DOI ID:10.1265/jjh.57.655, ISSN:0021-5082, CiNii Articles ID:130000997718, CiNii Books ID:AN00185923, PubMed ID:12638170
■ MISC
  • 老化と免疫               
    磯部 健一; 伊藤 佐知子; 西尾 尚美
    日本老年医学会雑誌, 巻:48, 号:3, 開始ページ:205, 終了ページ:210, 2011年05月25日
    日本老年医学会, 日本語
    ISSN:0300-9173, CiNii Articles ID:10030469561, CiNii Books ID:AN00199010
  • 腫瘍細胞接種ラットに及ぼすストレスの影響 : (2)非特異的生体防御機能               
    西尾 尚美; 藤岡 洋成; 小西 勝徳; 石崎 香理; 深谷 悟; 佐々木 快峰; 神谷 瑞穂; 稲恭 宏; 町田 和彦
    日本衞生學雜誌, 巻:54, 号:1, 開始ページ:384, 終了ページ:384, 1999年04月15日
    日本語
    ISSN:0021-5082, CiNii Articles ID:10013389224, CiNii Books ID:AN00185923
  • 腫瘍細胞接種ラットに及ぼすストレスの影響 : (1)生体諸機能               
    藤岡 洋成; 西尾 尚美; 小西 勝徳; 石崎 香理; 深谷 悟; 佐々木 快峰; 神谷 瑞穂; 稲恭 宏; 町田 和彦
    日本衞生學雜誌, 巻:54, 号:1, 開始ページ:383, 終了ページ:383, 1999年04月15日
    日本語
    ISSN:0021-5082, CiNii Articles ID:10013389223, CiNii Books ID:AN00185923
  • 高齢者における身体活動量と健康の関係               
    佐々木 快峰; 深谷 悟; 石崎 香理; 小西 勝徳; 西尾 尚美; 神谷 瑞穂; 北山 誠太; 稲恭 宏; 町田 和彦
    日本衞生學雜誌, 巻:54, 号:1, 開始ページ:278, 終了ページ:278, 1999年04月15日
    日本語
    ISSN:0021-5082, CiNii Articles ID:10013389102, CiNii Books ID:AN00185923
  • 学生トライアスリートと生体防御機能 : <第1報> 試合前後の変化               
    石崎 香理; 神谷 瑞穂; 小西 勝徳; 西尾 尚美; 深谷 悟; 佐々木 快峰; 稲恭 宏; 井上 由佳子; 山田 保; 町田 和彦
    日本衞生學雜誌, 巻:54, 号:1, 開始ページ:276, 終了ページ:276, 1999年04月15日
    日本語
    ISSN:0021-5082, CiNii Articles ID:10013389100, CiNii Books ID:AN00185923
  • 運動習慣が高齢者の生化学検査に及ぼす影響               
    北山 誠太; 深谷 悟; 佐々木 快峰; 石崎 香里; 西尾 尚美; 小西 勝徳; 神谷 瑞穂; 稲 恭弘; 町田 和彦; 高木 廣文
    日本衞生學雜誌, 巻:54, 号:1, 開始ページ:279, 終了ページ:279, 1999年04月15日
    日本語
    ISSN:0021-5082, CiNii Articles ID:10013389103, CiNii Books ID:AN00185923
■ 担当経験のある科目_授業
  • 2018年04月 - 現在
    微生物学(免疫学を含む), 埼玉大学
  • 2018年04月 - 現在
    生理学, 埼玉大学
  • 2018年04月 - 現在
    解剖生理学, 埼玉大学
  • 2018年04月 - 現在
    臨床実習, 埼玉大学
  • 2018年 - 現在
    栄養学(食品学を含む), 埼玉大学
  • 2019年04月 - 2022年03月
    薬理概論, 埼玉大学
  • 2018年10月 - 2022年03月
    生理学, 東京学芸大学
  • 2019年10月 - 2020年03月
    栄養学, 東京学芸大学
  • 2018年04月
    解剖生理学実習, 埼玉大学
  • 臨床医学概説, 埼玉大学
■ 所属学協会
  • 2025年04月 - 現在, 日本栄養改善学会
  • 2007年06月 - 現在, 日本基礎老化学会
  • 1997年04月 - 現在, 日本衛生学会
■ 共同研究・競争的資金等の研究課題
  • 「チーム学校」による心身緊急時等対応体制構築のための教育プログラム開発と情報支援               
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 2022年04月01日 - 2027年03月31日
    関 由起子; 齋藤 千景; 戸部 秀之; 西尾 尚美, 埼玉大学
    配分額(総額):16510000, 配分額(直接経費):12700000, 配分額(間接経費):3810000
    課題番号:22H00961
  • GADD34による老化関連疾患の制御メカニズムの解析               
    日本学術振興会, 科学研究費助成事業, 基盤研究(C), 2019年04月01日 - 2023年03月31日
    西尾 尚美; 磯部 健一, 埼玉大学
    配分額(総額):4290000, 配分額(直接経費):3300000, 配分額(間接経費):990000
    GADD34遺伝子欠損マウスは加齢とともに脂肪肝や糖尿病などの代謝性疾患を発症することが明らかになっている。そこには、GADD34遺伝子欠損(GADD34 KO)マウスのインスリンシグナル伝達系の亢進が関与していると考えられている。
    昨年度は脂質代謝についてGADD34 KOとWTマウスの解析を行ったところ、顕著な差は認められなかった。一方で、高脂肪食(HFD)摂取による脂肪肝はGADD34 KOマウスで促進し、コリン摂取によって肝臓内の脂質が体外に排出される際にも、皮下脂肪はGADD34 KOマウスで増大していることが確認された。
    脂質増加の原因には、体外から摂取する脂肪の量と体内での脂肪酸合成の促進が存在する。そこで本年度は、脂質のde novo合成について検討を行った。脂質のde novo合成は、解糖系に由来するアセチルCoAから始まる。そこで、5週齢のGADD34 KOとWTマウスにGlucoseのみを2週間摂取させ、肝臓の代謝系のタンパク発現を検討した。
    その結果、これまで報告されてきたGADD34 KOマウスの若齢期におけるインスリンシグナル亢進は糖の過剰摂取時にはさらに顕著に亢進していることが明らかとなった。同時に、解糖系WTよりKOマウスで発現が上昇していた。一方で、脂肪酸合成酵素の発現を鑑みると、KOマウスでは脂質のde novo合成は低下していた。さらに、KOマウスでは炎症系に関わるタンパクのリン酸化の亢進が見られたことから、糖の過剰摂取ではGADD34の欠損によってNASHが促進される可能性が示唆された。
    課題番号:19K11687
  • 刺激応答タンパクGADD34と代謝性高齢者疾患の解明               
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 2016年04月01日 - 2019年03月31日
    磯部 健一; 長谷川 忠男; 稲城 玲子; 大橋 憲太郎; 西尾 尚美; 藤本 豊士, 名古屋女子大学
    配分額(総額):17290000, 配分額(直接経費):13300000, 配分額(間接経費):3990000
    生活習慣病が日本でも増加している。私たちは長年GADD34分子に着目して研究を行ってきた。GADD34遺伝子欠損マウスは老化に伴い、2型糖尿病、脂肪肝から肝硬変、肝癌を高率に発症する。そのメカニズムの解明から脂肪肝の発症や抑制に食事内容が重要であることがわかった。。マウスにエネルギー源として砂糖, グルコース、果糖のみを投与すると、2週間で脂肪肝を発症する。また、脂肪エネルギーが60%でコリンを欠損する食事でも2週間という短さで脂肪肝を発症する。これらのマウスに糖質が極端に低く。糖質をほとんど持たず、脂質60%である鶏卵のみ長期投与しても脂肪肝にならないばかりか、強力な脂肪肝抑制効果があった。
    課題番号:16H05280
  • 老化関連疾患のERストレス、自然免疫系からの解析とiPS細胞治療のモデル実験               
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 2013年04月01日 - 2017年03月31日
    磯部 健一; 祖父江 元; 大橋 憲太郎; 伊藤 佐知子; 西尾 尚美; 長谷川 忠男
    配分額(総額):18330000, 配分額(直接経費):14100000, 配分額(間接経費):4230000
    本研究は老化に伴って発生する疾患の発生過程に関与する生体応答を細胞内ERストレス応答と免疫応答から解析し、疾患の防御から不可逆性変化の過程を解析しiPS細胞等自己由来細胞による治療をめざした。その結果、タバコに含まれるアクロレインによって発症するCOPDはERストレス応答が関与することを分子レベルで明らかにした。ERストレスで上昇するGADD34欠損マウスは老化に伴って肥満から糖尿病、脂肪肝、肝硬変を発症することを見出した。この発症にはマクロファージが関与するが、GADD34はインスリンシグナル伝達系に関与することを明らかにした。iPS細胞を様々な組織に分化させ、治療実験の基礎をつくった。
    課題番号:25293166
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