강정민 교수
Jeong Min Kang
성균관대학교 의학과 · 생화학·유전·분자생물학
연구실 소개
강정민 교수의 연구실은 산소 민감성 단백질인 FIH와 G9a/GLP 등이 조절하는 에피제네틱 메틸화 조절 메커니즘을 중심으로, 암의 전이 및 세포 이동성 조절에 관여하는 분자 기전을 규명하고 있습니다. 특히, 저산소 상태에서의 에피제네틱 조절 전환과 관련해 FIH가 G9a/GLP를 수소화하여 억제함으로써 암세포의 침습성과 전이 능력을 조절하는 ‘FIH-G9a/GLP 축’을 규명하였으며, 이는 암 치료의 새로운 타겟 기반 연구로 이어지고 있습니다. 또한, 근육줄기세포의 노화 관련 기능 저하 메커니즘과 비인간 영장류 모델을 활용한 간엽세포 및 근육줄기세포의 기능적 특성 규명을 통해 재생의학 분야의 기초를 다지고 있습니다.
연구 현황
연구 성과 추이
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주요 논문
15Abstract The prolyl hydroxylase domain-containing proteins (PHD1-3) and the asparaginyl hydroxlyase factor inhibiting HIF (FIH) are oxygen sensors for hypoxia-inducible factor-driven transcription of hypoxia-induced genes, but whether these sensors affect oxygen-dependent epigenetic regulation more broadly is not known. Here, we show that FIH exerts an additional role as an oxygen sensor in epigenetic control by the histone lysine methyltransferases G9a and GLP. FIH hydroxylated and inhibited G9
The N-terminal acetyltransferase A (NatA) complex, which is composed of NAA10 and NAA15, catalyzes N-terminal acetylation of many proteins in a co-translational manner. Structurally, the catalytic subunit NAA10 was believed to have no activity toward an internal lysine residue because the gate of its catalytic pocket is too narrow. However, several studies have demonstrated that the monomeric NAA10 can acetylate the internal lysine residues of several substrates including hypoxia-inducible facto
The development of non-human primate models is essential for the fields of developmental and regenerative biology because those models will more closely approximate human biology than do murine models. Based on single cell RNAseq and fluorescence-activated cell sorting, we report the identification and functional characterization of two quiescent stem cell populations (skeletal muscle stem cells (MuSCs) and mesenchymal stem cells termed fibro-adipogenic progenitors (FAPs)) in the non-human prima
Aging is characterized by a decline in the ability of tissue repair and regeneration after injury. In skeletal muscle, this decline is largely driven by impaired function of muscle stem cells (MuSCs) to efficiently contribute to muscle regeneration. We uncovered a cause of this aging-associated dysfunction: a cellular survivorship bias that prioritizes stem cell persistence at the expense of functionality. With age, MuSCs increased expression of a tumor suppressor, N-myc down-regulated gene 1 (N
<p>The FIH-G9a/GLP axis regulates invasive potential of OvCa cells in an oxygen dependent manner. This file is related to Fig. 4.</p>
<p>Molecular dynamics simulation of H3K9me2 binding to unmodified GLP-ARD. These movies are related to main Fig. 3D.</p>
<p>G9a/GLP mutations recorded in COSMIC database. These data are related to Fig. 6.</p>
<p>The FIH-G9a/GLP axis regulates invasive potential of OvCa cells in an oxygen dependent manner. This file is related to Fig. 4.</p>
<p>FIH hydroxylates G9a/GLP at Asn residues in ARD and inhibits G9a/GLP-mediated gene repression. This file is related to Fig. 2-3.</p>
<p>Sequences of si/shRNAs and PCR primers. Information on cancer tissues. Gene sets correlated with G9a or FIH expression.</p>
<div>Abstract<p>The prolyl hydroxylase domain-containing proteins (PHD1-3) and the asparaginyl hydroxlyase factor inhibiting HIF (FIH) are oxygen sensors for hypoxia-inducible factor-driven transcription of hypoxia-induced genes, but whether these sensors affect oxygen-dependent epigenetic regulation more broadly is not known. Here, we show that FIH exerts an additional role as an oxygen sensor in epigenetic control by the histone lysine methyltransferases G9a and GLP. FIH hydroxylat
<p>FIH hydroxylates G9a/GLP at Asn residues in ARD and inhibits G9a/GLP-mediated gene repression. This file is related to Fig. 2-3.</p>
<p>Histone H3/4 modifications and oxygen-dependent H3K9 methylation by FIH and G9a/GLP. This file is related to Fig. 1.</p>
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