Updated on 2024/05/15

写真a

 
Yoshida Keisuke
 
Affiliation
Institute of Advanced Medical Sciences, Department of Bioregulation, Associate Professor
Title
Associate Professor
External link

Degree

  • PhD ( 2010.3   Tokyo Institute of Technology )

Research Interests

  • Transgenerational Inheritance

  • ATF7

  • Spermatozoa

  • Genome Editing

  • Environmental stress-induced epigenetic change

  • Epigenetics

  • Pathogenic Variant

Research Areas

  • Life Science / Molecular biology  / Epigenetics

  • Life Science / Genome biology  / Genome editing

Education

  • Tokyo Tech   Graduate School of Bioscience

    2006.4 - 2010.3

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  • Tokyo Institute of Technology   School of Bioscience

    2002.4 - 2006.3

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Research History

  • Nippon Medical School   Department of Bioregulation   Associate Professor

    2021.10

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    Country:Japan

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  • RIKEN, BRC   Next Generation Human Disease Model Team   R&D Researcher

    2019.4 - 2021.9

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  • RIKEN, tsukuba   Molecular Genetics Lab.   Cooperative Research Fellow

    2013.4 - 2019.3

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  • RIKEN, tsukuba   Molecular Genetics Lab.   Special Postdoctoral Researchers Program

    2010.4 - 2013.3

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  • Tokyo Institute of Technology   Graduate School of Bioscience   JSPS・DC2

    2009.4 - 2010.3

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Professional Memberships

  • THE MOLECULAR BIOLOGY SOCIETY OF JAPAN

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  • The Japanese Cancer Association

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Papers

  • ATF7-Dependent Epigenetic Changes Are Required for the Intergenerational Effect of a Paternal Low-Protein Diet Reviewed

    Keisuke Yoshida, Toshio Maekawa, Nhung Hong Ly, Shin-ichiro Fujita, Masafumi Muratani, Minami Ando, Yuki Katou, Hiromitsu Araki, Fumihito Miura, Katsuhiko Shirahige, Mariko Okada, Takashi Ito, Bruno Chatton, Shunsuke Ishii

    Molecular Cell   2020.3

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.molcel.2020.02.028

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  • Mapping of histone-binding sites in histone replacement-completed spermatozoa Reviewed

    Keisuke Yoshida, Masafumi Muratani, Hiromitsu Araki, Fumihito Miura, Takehiro Suzuki, Naoshi Dohmae, Yuki Katou, Katsuhiko Shirahige, Takashi Ito, Shunsuke Ishii

    Nature Communications   9 ( 1 )   2018.9

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Springer Nature  

    DOI: 10.1038/s41467-018-06243-9

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  • The transcription factor ATF7 mediates lipopolysaccharide-induced epigenetic changes in macrophages involved in innate immunological memory. Reviewed

    Yoshida K, Maekawa T, Zhu Y, Renard-Guillet C, Chatton B, Inoue K, Uchiyama T, Ishibashi K, Yamada T, Ohno N, Shirahige K, Okada-Hatakeyama M, Ishii S

    Nature Immunology   16 ( 10 )   1034 - 1043   2015.10

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    Yoshida K, Maekawa T, Zhu Y, Renard-Guillet C, Chatton B, Inoue K, Uchiyama T, Ishibashi K, Yamada T, Ohno N, Shirahige K, Okada-Hatakeyama M, Ishii S, Nature immunology, 2015, vol. 16, no. 10, pp. 1034-1043

    DOI: 10.1038/ni.3257

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  • Cohesin mediates transcriptional insulation by CCCTC-binding factor. Reviewed

    Wendt KS, Yoshida K, Itoh T, Bando M, Koch B, Schirghuber E, Tsutsumi S, Nagae G, Ishihara K, Mishiro T, Yahata K, Imamoto F, Aburatani H, Nakao M, Imamoto N, Maeshima K, Shirahige K, Peters JM

    Nature   451 ( 7180 )   796 - 801   2008.2

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

    Wendt KS, Yoshida K, Itoh T, Bando M, Koch B, Schirghuber E, Tsutsumi S, Nagae G, Ishihara K, Mishiro T, Yahata K, Imamoto F, Aburatani H, Nakao M, Imamoto N, Maeshima K, Shirahige K, Peters JM, Nature, 2008, vol. 451, no. 7180, pp. 796-801

    DOI: 10.1038/nature06634

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  • Phosphoproteomic Analysis Identified Mutual Phosphorylation of FAK and Src as a Mechanism of Osimertinib Resistance in EGFR-Mutant Lung Cancer

    Takehiro Tozuka, Rintaro Noro, Keisuke Yoshida, Satoshi Takahashi, Mariko Hirao, Kuniko Matsuda, Yasuhiro Kato, Shinji Nakamichi, Susumu Takeuchi, Masaru Matsumoto, Akihiko Miyanaga, Shinobu Kunugi, Kazufumi Honda, Jun Adachi, Masahiro Seike

    JTO Clinical and Research Reports   5 ( 4 )   100668 - 100668   2024.4

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jtocrr.2024.100668

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  • Intergenerational effect of short-term spaceflight in mice. Reviewed International journal

    Keisuke Yoshida, Shin-Ichiro Fujita, Ayako Isotani, Takashi Kudo, Satoru Takahashi, Masahito Ikawa, Dai Shiba, Masaki Shirakawa, Masafumi Muratani, Shunsuke Ishii

    iScience   24 ( 7 )   102773 - 102773   2021.7

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    As space travel becomes more accessible, it is important to understand the effects of spaceflight including microgravity, cosmic radiation, and psychological stress. However, the effect on offspring has not been well studied in mammals. Here we investigated the effect of 35 days spaceflight on male germ cells. Male mice that had experienced spaceflight exhibit alterations in binding of transcription factor ATF7, a regulator of heterochromatin formation, on promoter regions in testis, as well as altered small RNA expression in spermatozoa. Offspring of space-traveling males exhibit elevated hepatic expression of genes related to DNA replication. These results indicate that spaceflight has intergenerational effect.

    DOI: 10.1016/j.isci.2021.102773

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  • Stress-induced and ATF7-dependent epigenetic change influences cellular senescence. Reviewed International journal

    Toshio Maekawa, Binbin Liu, Yang Liu, Keisuke Yoshida, Masafumi Muratani, Bruno Chatton, Shunsuke Ishii

    Genes to cells   24 ( 9 )   627 - 635   2019.9

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    Language:English  

    Cellular senescence plays an important role in aging and is induced by cyclin-dependent kinase (Cdk) inhibitors that accumulate following stresses during aging. However, the underlying mechanism remains elusive. Herein, we demonstrate that activating transcription factor 7 (ATF7), the stress-responsive recruiter of histone H3K9 di- and trimethyltransferases, functions in the accumulation of Cdk inhibitors. Atf7-deficient (Atf7-/- ) mice have a shorter lifespan than wild-type (WT) mice. Levels of p16Ink4a Cdk inhibitor mRNA increased with age more rapidly in Atf7-/- mice than in WT animals. ATF7 binds to the p16Ink4a gene promoter and was released with age. Consistently, histone H3K9me2 levels on the p16Ink4a gene promoter were lower in Atf7-/- mice than in WT animals. Similar results were obtained when Atf7-/- and WT mouse embryonic fibroblasts (MEFs) were cultured under 20% oxygen conditions, which induces cellular senescence via oxidative stress. Phosphorylation of ATF7 by p38 was also increased with the passage of MEFs, consistent with previous observations that ATF7 phosphorylation by p38 induces its release from chromatin. These results indicate that stress-induced and ATF7-dependent epigenetic changes on p16Ink4a genes play an important role in cellular senescence.

    DOI: 10.1111/gtc.12713

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  • RNA-Sequencing Analysis of Paternal Low-Protein Diet-Induced Gene Expression Change in Mouse Offspring Adipocytes Reviewed

    Nhung Hong Ly, Toshio Maekawa, Keisuke Yoshida, Yang Liu, Masafumi Muratani, Shunsuke Ishii

    G3   9 ( 7 )   2161 - 2170   2019.7

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    Publishing type:Research paper (scientific journal)   Publisher:Genetics Society of America  

    DOI: 10.1534/g3.119.400181

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  • The Transcription Factor ATF7 Controls Adipocyte Differentiation and Thermogenic Gene Programming. Reviewed International journal

    Yang Liu, Toshio Maekawa, Keisuke Yoshida, Masafumi Muratani, Bruno Chatton, Shunsuke Ishii

    iScience   13   98 - 112   2019.3

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    Language:English  

    Adipocytes function as major players in the regulation of metabolic homeostasis, and factors contributing to adipocyte differentiation and function are promising targets for combatting obesity and associated metabolic disorders. Activating transcription factor 7 (ATF7), a stress-responsive chromatin regulator, is involved in energy metabolism, but the underlying mechanisms remain unknown. Herein, we showed that ATF7 is required for adipocyte differentiation and interacts with histone dimethyltransferase G9a in adipocytes to repress the expression of interferon-stimulated genes, which in turn suppress adipogenesis. Ablation of ATF7 promotes beige fat biogenesis in inguinal white adipose tissue. ATF7 binds to transcriptional regulatory regions of the gene encoding uncoupling protein 1, silencing it by controlling histone H3K9 dimethylation. Our findings demonstrate that ATF7 is a multifunctional adipocyte protein involved in the epigenetic control of development and function in adipose tissues.

    DOI: 10.1016/j.isci.2019.02.013

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  • Telomere shortening by transgenerational transmission of TNF-α-induced TERRA via ATF7. Reviewed International journal

    Binbin Liu, Toshio Maekawa, Keisuke Yoshida, Nhung Hong Ly, Kimiko Inoue, Ayumi Hasegawa, Bruno Chatton, Atsuo Ogura, Shunsuke Ishii

    Nucleic acids research   47 ( 1 )   283 - 298   2019.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    Various stresses increase disease susceptibility and accelerate aging, and increasing evidence suggests that these effects can be transmitted over generation. Epidemiological studies suggest that stressors experienced by parents affect the longevity of their offspring, possibly by regulating telomere dynamics. Telomeres are elongated by telomerase and shortened by certain stresses as well as telomere repeat-containing RNA (TERRA), a telomere transcript. However, the mechanism underlying the transgenerational effects is poorly understood. Here, we show that TNF-α, which is induced by various psychological stresses, induces the p38-dependent phosphorylation of ATF7, a stress-responsive chromatin regulator, in mouse testicular germ cells. This caused a release of ATF7 from the TERRA gene promoter in the subtelomeric region, which disrupted heterochromatin and induced TERRA. TERRA was transgenerationally transmitted to zygotes via sperm and caused telomere shortening. These results suggest that ATF7 and TERRA play key roles in paternal stress-induced telomere shortening in the offspring.

    DOI: 10.1093/nar/gky1149

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  • ATF7 mediates TNF-α–induced telomere shortening Reviewed

    Toshio Maekawa, Binbin Liu, Daisuke Nakai, Keisuke Yoshida, Ken-ichi Nakamura, Mami Yasukawa, Manabu Koike, Kaiyo Takubo, Bruno Chatton, Fuyuki Ishikawa, Kenkichi Masutomi, Shunsuke Ishii

    Nucleic Acids Research   46 ( 9 )   4487 - 4504   2018.2

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    Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press ({OUP})  

    DOI: 10.1093/nar/gky155

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  • The transcription factor ATF7 mediates in vitro fertilization-induced gene expression changes in mouse liver Reviewed

    Liu, Y., Maekawa, T., Yoshida, K., Kaneda, H., Chatton, B., Wakana, S., Ishii, S.

    FEBS Open Bio   7 ( 10 )   1598 - 1610   2017

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/2211-5463.12304

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  • Microarray expression analysis of genes involved in innate immune memory in peritoneal macrophages Reviewed

    Keisuke Yoshida, Claire Renard-Guillet, Kentaro Inoue, Katsuhiko Shirahige, Mariko Okada-Hatakeyama, Shunsuke Ishii

    Genomics Data   7   90 - 91   2016.3

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier {BV}  

    DOI: 10.1016/j.gdata.2015.11.028

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  • Innate immune memory via ATF7-dependent epigenetic changes Reviewed

    Yoshida, K., Ishii, S.

    Cell Cycle   15 ( 1 )   3 - 4   2016

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/15384101.2015.1112687

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  • ATF7 ablation prevents diet-induced obesity and insulin resistance Reviewed

    Liu, Y., Maekawa, T., Yoshida, K., Furuse, T., Kaneda, H., Wakana, S., Ishii, S.

    Biochemical and Biophysical Research Communications   478 ( 2 )   696 - 702   2016

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.bbrc.2016.08.009

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  • 姉妹染色分体間の接着因子,コヒーシンの新たな機能

    MAESHIMA KAZUHIRO, YOSHIDA KEISUKE, SHIRAHIGE KATSUHIKO

    蛋白質 核酸 酵素   53 ( 11 )   1337 - 1344   2008.9

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    Language:Japanese  

    J-GLOBAL

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  • [Function of cohesin in transcription]. Reviewed

    Kazuhiro Maeshima, Keisuke Yoshida, Katsuhiko Shirahige

    Tanpakushitsu kakusan koso. Protein, nucleic acid, enzyme   53 ( 11 )   1337 - 44   2008.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • アレイ解析 臨床応用を目指して 基調講演 コヒーシンタンパクの転写に置ける役割

    白髭 克彦, 吉田 圭介, 坂東 優篤, 前島 一博, 伊藤 武彦, 広田 亨, 近藤 達郎

    Cytometry Research   18 ( Suppl. )   46 - 46   2008.6

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    Language:Japanese   Publisher:(一社)日本サイトメトリー学会  

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Books

  • 父親の環境ストレスの遺伝

    吉田 圭介,石井 俊輔( Role: Contributor実験医学 2021年4月号 -世代を超えるエピゲノム-)

    羊土社  2021.3 

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  • Transmission of epigenetic change

    ( Role: Contributor)

    2020.1 

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  • ATF7 induces innate immune memory in macrophage via epigenetic changes

    Keisuke Yoshida, Shunsuke Ishii( Role: Joint authorSaibou Kougaku)

    2016.3 

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  • Analysis for chromatin structure in higher eukaryote using ChIP-chip method

    Keisuke Yoshida, Masashige Bando, Yotaka Kahoh, Katsuhiko Shirahige( Role: Joint authorZikken Igaku)

    2007.1 

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  • 自然免疫記憶とエピゲノム変化

    吉田圭介, 石井俊輔( Role: Contributor臨床免疫・アレルギー科 第76巻第1号 「解説」)

    科学評論社  2021.7 

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  • エピゲノム記憶によって誘導される訓練免疫

    吉田 圭介( Role: Contributor化学と生物 3月号 今日の話題)

    学会出版センター  2021.3  ( ISBN:476220837X

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    Total pages:vii, 182p   Language:Japanese  

    CiNii Books

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  • Epigenome defined by outer environment

    Keisuke Yoshida, Shunsuke Ishii( Role: Joint authorZikken Igaku)

    2016.6 

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Presentations

  • 次世代へと継承されるエピゲノム変化を制御する ATF7 の機能解析

    吉田 圭介, 前川 利男, Ly Nhung, Claire Renard-Guillet, Bruno Chatton, 白髭 克彦, 石井 俊輔

    第10回 日本エピジェネティクス研究会年会  2016.5 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • ChIP-chip解析により明らかになったヒト染色体上でのコヒーシンとCTCFの共局在とその生物学的意義

    吉田 圭介, 坂東 優篤, 前島 一博, 伊藤 武彦, 広田 亨, 白髭 克彦

    第25回染色体ワークショップ  2008.1 

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    Presentation type:Poster presentation  

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  • ATF-7 controls epigenetic memory of pathogen infection in macrophages

    Gordon Research Conference -Epigenetics-  2013.8 

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  • ATF7 mediates LPS-induced epigenetic changes in macrophages involved in innate immune memory

    The 40th Naitou Conference -Epigenetics-  2015.9 

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  • 父親の環境ストレスによる精子エピゲノム変化と継世代遺伝 Invited

    吉田圭介, 石井俊輔

    日本遺伝学会第93回大会  2021.9 

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    Language:Japanese   Presentation type:Symposium, workshop panel (nominated)  

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  • ヒト培養細胞におけるコヒーシンのゲノムワイドな結合領域の特定とその機能解析

    吉田 圭介, 坂東 優篤, 伊藤 武彦, 広田 亨, 白髭 克彦

    第29回 日本分子生物学会年会  2006.12 

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  • Analysis for trans-generational inheritance of epigenetic change induced by pathogen infection via ATF7 International conference

    Keisuke Yoshida

    Innate Immune Memory 2017  2017.3  Wellcome Genome Campus

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    Language:English   Presentation type:Symposium, workshop panel (nominated)  

    Venue:Hinxton, UK  

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  • ATF7-dependent epigenetic change is required for intergenerational effect of paternal low-protein diet

    2019.12 

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    Language:English   Presentation type:Poster presentation  

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  • 宇宙マウスとその子供達のはなし Invited

    吉田圭介

    日本遺伝学会 第95回大会 公開市民講座『宇宙環境と遺伝』  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

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  • Effect of environmental stress in father on offspring phenotype Invited

    Keisuke Yoshida

    2021.11 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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  • Inheritance of environmental stress-induced effect via sperm epigenome Invited

    Keisuke Yoshida

    EEG The 1st ONLINE symposium  2021.10 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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  • ゲノム学的解析法を基礎研究に生かす

    吉田圭介, 坂東優篤, 前島一博, 伊藤武彦, 広田亨, 白髭克彦

    日本環境変異原学会公開シンポジウム講演要旨集  2008 

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    Event date: 2008

    Language:Japanese  

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  • コヒーシンは転写のインシュレーター:その医学的意義の考察

    白髭克彦, 吉田圭介, 坂東優篤, 前島一博, 油谷浩幸, 広田亨, 伊藤武彦

    日本人類遺伝学会大会プログラム・抄録集  2008 

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    Event date: 2008

    Language:Japanese  

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  • CTCF依存的であるコヒーシン新規機能の解析

    吉田圭介

    第7回核ダイナミクス研究会  2007.9 

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    Presentation type:Oral presentation (general)  

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  • ChIP-chip解析により明らかになったヒト染色体上でのコヒーシンとCTCFの共局在とその生物学的意義

    吉田 圭介, 坂東 優篤, 前島 一博, 伊藤 武彦, 広田 亨, 白髭 克彦

    第30回 日本分子生物学会年会  2007.12 

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  • ATF-7 functions as repressor for inflammatory response

    2011.12 

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    Presentation type:Poster presentation  

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  • Functional analysis for mouse ATF-7 in macrophage during inflammation

    2012.12 

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  • ATF7 mediates LPS-induced epigenetic changes in macrophages

    2015.12 

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  • Maintenance and inheritance of chromatin structure altered by environmental stress via epigenetic change Invited

    Keisuke Yoshida

    9th Symposium of the Smart-Aging Research Center, TOHOKU University  2021.2 

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    Language:English   Presentation type:Symposium, workshop panel (nominated)  

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  • Analysis for trans-generational inheritance of epigenetic change induced by pathogen infection via ATF7

    The 12th Fujihara Seminar  2017.9 

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  • 単一成熟精子画分を用いた残存ヒストン結合領域の同定

    吉田圭介

    第12回日本エピジェネティクス研究会年会  2018.5 

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  • 父親の環境ストレスの遺伝メカニズム Invited

    吉田圭介

    環境ホルモン学会 自由集会5「内分泌かく乱物質とエピジェネティクス」  2022.6 

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  • 父親の炎症ストレスが子供の腎機能に与える影響

    吉田圭介

    第46回日本分子生物学会年会  2023.12 

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Research Projects

  • Study of environmental factor-induced diversity in disease phenotype

    2020.10 - 2024.3

    AMED  Advanced Research and Development Programs for Medical Innovation (PRIME)  PRIME

    Keisuke Yoshida

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    Authorship:Principal investigator 

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  • Analysis for sperm epigenome regulated by ATF7 using complete mature sperm

    Grant number:18K06189  2018.4 - 2021.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    Keisuke Yoshida

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

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  • Molecular mechanism for inheritance trait from parental hygiene environment

    2017.4 - 2019.3

    Takada Science Foundation  Grant-in-Aid for life-science research 

    Keisuke Yoshida

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    Authorship:Principal investigator  Grant type:Competitive

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  • Molecular analysis of effect of infection stress into the next generation

    Grant number:16K18497  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)  Grant-in-Aid for Young Scientists (B)

    Keisuke Yoshida

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    Recent reports indicate that paternal environmental stress affects phenotype in offspring beyond generation. In this study, I tried to reveal "whether paternal immune stress affects pathogenic resistance in offspring" using mice. Here, it's observed that amount of specific type of methylated histone was changed in mouse sperm by infection stress. Furthermore, offspring from father mouse which have infected exhibited increased gene expression of inflammation-related genes.

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  • ヒトコヒーシンの果たすインシュレーター機能の分子機構の解明

    Grant number:09J08261  2009

    日本学術振興会  科学研究費助成事業 特別研究員奨励費  特別研究員奨励費

    吉田 圭介

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    Grant amount:\700000 ( Direct Cost: \700000 )

    細胞のもつ遺伝情報を次世代へと恒常的に継承するためには、細胞の持つ染色体DNAを正確に複製し、また、これを確実に次世代の細胞へと等分配することが必須である。この分配機構において、中心的な役割を果たすのがコヒーシン複合体である。コヒーシンは、リング状の特徴的な構造を持つタンパク質複合体で、複製された2分子のDNAを細胞分裂までリング内部に束ねることで、DNAの等分配を保障している。コヒーシンは、染色体の分配因子として良く研究がされている一方で、DNA修復や遺伝子の転写制御にも関与している可能性が示唆されていた。そこで申請者は、ヒト染色体上にコヒーシンが結合する領域に何か特徴があるのではないかと考え、ChIP-chip法(クロマチン免疫沈降法とDNAチップ解析を組み合わせた手法で、目的タンパク質の染色体上結合領域を網羅的に特定することが出来る)を用いてヒト培養細胞を解析した。その結果、コヒーシンがインシュレーター領域(転写活性化DNA領域と遺伝子の相互作用を遮断する領域)に局在していることを発見した。さらにコヒーシンの分子生物学的な解析を行った結果、コヒーシンがインシュレーター因子であるCTCFを介した転写制御に関与していることが分かった。また、過去の知見を踏まえると、この制御機構が分化発生段階で調節される遺伝子の発現調節において重要な役割を持っているのではないか、と筆者は考えた。そこで、マウスをモデル生物として、分化発生段階でコヒーシンの結合がどのように変化していくのか、同様にChIP-chipを用いて調べることにした。現在は、マウスの初期胚盤胞のサンプルを作成中である。予備実験として、10,000個のMEF(マウス繊維芽細胞)を用いたクロマチン免疫沈降に成功しているので、初期胚のサンプルが整い次第、ChIP-chip解析実験を行う予定である。

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  • Transgenerational inheritance of altered gene expression via stress

    Grant number:23659165  2011 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

    MAEKAWA Toshio, YOSHIDA Keisuke

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    Grant amount:\3770000 ( Direct Cost: \2900000 、 Indirect Cost:\870000 )

    A paternal “low-protein” diet altered gene expressions, mainly involved in lipid and cholesterol biosynthesis, in the livers of offspring even though the maternal diet was unaltered (Carone BR, Cell, 2010). We have studied the effect of ATF-7 on these gene expressions and have found that using Atf-7 knockout male mice low-protein diet didn’t alter expressions of cholesterol biosynthesis genes. And we have found that ATF-7 binds to the promoter regions of about half of these cholesterol biosynthesis genes. And also, in the promoter regions of these genes, the degrees of histone H3K9 methylation were reduced.

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  • Molecular analysis for chromatin structure conserved beyond generations

    Grant number:22870038  2010 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity start-up  Grant-in-Aid for Research Activity start-up

    YOSHIDA Keisuke

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3146000 ( Direct Cost: \2420000 、 Indirect Cost:\726000 )

    ATF-7 is reported to contribute to transgenerational effect of heat shock stress in fly. This time, I investigated molecular function of ATF-7 in innate immunity system using resident peritoneal macrophages. ChIP-chip results with ATF-7 antibody showed ATF-7 binds to promoter region of several tens of innate immunityrelated genes. At these sites, H3K9me2 level decrease and gene activity is enhanced in ATF-7 KO. I found that after treating macrophages by innate immune stress, ATF-7 binding and H3K9me2 level is decreased.

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