Mitochondrial transfer RNA modifications in normal and stressed hematopoiesis

• 研究課題/領域番号: 18K16124
• 研究種目: 若手研究
• 配分区分: 基金
• 審査区分: 小区分54010:血液および腫瘍内科学関連
• 研究機関: 熊本大学
• 研究代表者: FAKRUDDIN MD 熊本大学, 国際先端医学研究機構, 特定事業研究員 (20816475)
• 研究期間 (年度): 2018-04-01 – 2019-03-31
• 研究課題ステータス: 中途終了 (2018年度)
• 配分額: 3,380千円 (直接経費: 2,600千円、間接経費: 780千円); 2019年度: 1,950千円 (直接経費: 1,500千円、間接経費: 450千円); 2018年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
• キーワード: mitochondria / tRNA modification / Hematopoiesis / Mitochondria / tRNA / Modification

研究実績の概要

We generated hematopoiesis specific MTO1 knock out mice (vav-iCre: MTO1 KO) and found that the KO mice was embryonic lethal due to severe anemia. Hematopoietic stem cell population was changed significantly in the embryos. Erythrocyte progenitors analysis did not showed any defect in the progenitor level. To study the mechanisms further, we also generated tamoxifen inducible HSC specific conditional MTO1 knock out mice (Hlf-Cre ERT2: MTO1 cKO) and will analyze these mice very soon. Furthermore, to study the role of MTO1 in HSC niche, i am generating niche specific MTO1 knock out mice (LepR cre: MTO1 KO). Comprehensive analysis of these mouse models at cellular and molecular level will delineate the novel role transfer RNA modifications in normal and stressed hematopoiesis.