医科学専攻

  • Master's Courses 
    修士課程
  • Doctoral Courses 
    博士課程

Oxygen Biology酸素医学

  • Hypoxia
  • Oxidative stress
  • Erythropoietin
  • Kidney disease
  • Anemia

STAFF

Professor

  • Suzuki, NorioProfessor. 鈴木 教郎 教授

Other Faculty / Staff

  • Nakai, Taku
    Assistant Prof. 中井 琢 助教

CONTACT

TEL:+81-22-717-8206
E-MAIL:sunorio*med.tohoku.ac.jp
(「*」を「@」に変換してください)

OUTLINE

Since oxygen is essential for mammals, oxygen homeostasis is strictly maintained through an adaptation system to hypoxia, in which hypoxia-inducible transcription factors (HIFs) play central roles. On the other hand, when an imbalance in oxygen metabolism exists, the Nrf2 transcription factor protects cells from reactive oxygen species (ROS) and “oxidative stress”, both of which are closely related to various diseases. We have demonstrated cellular and molecular mechanisms in which abnormalities in the HIF and Nrf2 pathways result in anemia, kidney disease and so on. Additionally, our research outcomes are contributing to sports doping diagnosis, drug discovery, therapeutic strategy development, and preparation for space travel.

酸素は生命維持に必須であり、酸素不足は生命の存続を脅かす低酸素ストレスとなります。一方、酸素は生体分子との反応性が高く、酸化ストレスとして様々な疾患に深く関わります。生体は、これらのストレスに対する防御機構を備えており、遺伝子発現を制御することにより、酸素環境の変動に対して適応することができます。私たちは、低酸素ストレス応答機構(PHD-HIF系)や酸化ストレス応答機構(Keap1-Nrf2系)が破綻すると、疾患を引き起こしたり、悪化させることを明らかにし、その分子機序の解明を進めています。これまでに、貧血や腎臓病などの病態理解を進展させ、創薬につながる成果を得ています。

  • Renal erythropoietin (EPO) producing cells
    造血因子EPOを分泌する腎臓のREP細胞

  • Lab members
    研究室メンバー

ARTICLE

Miyauchi K, et al. Renal interstitial fibroblasts coproduce erythropoietin and renin under anaemic conditions. EBioMedicine. 64:103209, 2021
URL:https://www.thelancet.com/journals/ebiom/article/PIIS2352-3964(21)00002-5/fulltext

Suzuki N, et al. Iron attenuates erythropoietin production by decreasing HIF2a concentrations in renal interstitial fibroblasts. Kidney Int. 94(5):900-911, 2018
URL:https://pubmed.ncbi.nlm.nih.gov/30245128/

Nezu M, et al. Nrf2 inactivation enhances placental angiogenesis in a preeclampsia mouse model and improves maternal and fetal outcomes. Science Signal. 10(479):eaam5711, 2017
URL:https://www.science.org/doi/full/10.1126/scisignal.aam5711

Souma T, et al. Erythropoietin synthesis in renal myofibroblasts is restored by activation of hypoxia signaling. J Am Soc Nephrol. 27(2):428-438, 2016
URL:https://pubmed.ncbi.nlm.nih.gov/26054543/

Suzuki N, et al. Erythropoietin production in neuroepithelial and neural crest cells during primitive erythropoiesis. Nature Commun. 4:2902, 2013
URL:https://pubmed.ncbi.nlm.nih.gov/24309470/

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