P. I. Bobyleva, E. A. Tyrina, M. V. Lobanova, L. B. Buravkova
{"title":"间充质基质细胞体外敲除 HIF1A 后缺氧条件下组蛋白 H3K9 甲基化的特征","authors":"P. I. Bobyleva, E. A. Tyrina, M. V. Lobanova, L. B. Buravkova","doi":"10.1007/s10517-024-06203-y","DOIUrl":null,"url":null,"abstract":"<p>The effects of <i>HIF1A</i> knockdown by RNA interference on the histone H3K9 methylation in human umbilical cord mesenchymal stromal cells <i>in vitro</i> under conditions of 24-h exposure to hypoxia (1% O<sub>2</sub>) were studied. Evaluation of transcriptional activity of genes involved in the regulation of H3K9 methylation (<i>KDM3A, KDM4A,</i> and <i>EHMT2</i>) and the cytofluorimetric analysis of the expression of the corresponding antigens and H3K9 methylation level demonstrated a pronounced stimulating effect of hypoxic exposure. Moreover, the expression of <i>KDM4A</i> and <i>EHMT2</i> was regulated by <i>HIF1A</i>-mediated mechanism, unlike <i>KDM3A;</i> the level of the corresponding proteins depended on HIF1A. In addition, the HIF-1-dependent regulation of KDM3A, KDM4A, and EHMT2/G9a, and directly the H3K9 methylation level in mesenchymal stromal cells also took place under normoxia conditions.</p>","PeriodicalId":9331,"journal":{"name":"Bulletin of Experimental Biology and Medicine","volume":"55 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Histone H3K9 Methylation Features under Hypoxic Conditions after the HIF1A Knockdown in Mesenchymal Stromal Cells In Vitro\",\"authors\":\"P. I. Bobyleva, E. A. Tyrina, M. V. Lobanova, L. B. Buravkova\",\"doi\":\"10.1007/s10517-024-06203-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The effects of <i>HIF1A</i> knockdown by RNA interference on the histone H3K9 methylation in human umbilical cord mesenchymal stromal cells <i>in vitro</i> under conditions of 24-h exposure to hypoxia (1% O<sub>2</sub>) were studied. Evaluation of transcriptional activity of genes involved in the regulation of H3K9 methylation (<i>KDM3A, KDM4A,</i> and <i>EHMT2</i>) and the cytofluorimetric analysis of the expression of the corresponding antigens and H3K9 methylation level demonstrated a pronounced stimulating effect of hypoxic exposure. Moreover, the expression of <i>KDM4A</i> and <i>EHMT2</i> was regulated by <i>HIF1A</i>-mediated mechanism, unlike <i>KDM3A;</i> the level of the corresponding proteins depended on HIF1A. In addition, the HIF-1-dependent regulation of KDM3A, KDM4A, and EHMT2/G9a, and directly the H3K9 methylation level in mesenchymal stromal cells also took place under normoxia conditions.</p>\",\"PeriodicalId\":9331,\"journal\":{\"name\":\"Bulletin of Experimental Biology and Medicine\",\"volume\":\"55 1\",\"pages\":\"\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2024-09-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Experimental Biology and Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s10517-024-06203-y\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Experimental Biology and Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10517-024-06203-y","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
Histone H3K9 Methylation Features under Hypoxic Conditions after the HIF1A Knockdown in Mesenchymal Stromal Cells In Vitro
The effects of HIF1A knockdown by RNA interference on the histone H3K9 methylation in human umbilical cord mesenchymal stromal cells in vitro under conditions of 24-h exposure to hypoxia (1% O2) were studied. Evaluation of transcriptional activity of genes involved in the regulation of H3K9 methylation (KDM3A, KDM4A, and EHMT2) and the cytofluorimetric analysis of the expression of the corresponding antigens and H3K9 methylation level demonstrated a pronounced stimulating effect of hypoxic exposure. Moreover, the expression of KDM4A and EHMT2 was regulated by HIF1A-mediated mechanism, unlike KDM3A; the level of the corresponding proteins depended on HIF1A. In addition, the HIF-1-dependent regulation of KDM3A, KDM4A, and EHMT2/G9a, and directly the H3K9 methylation level in mesenchymal stromal cells also took place under normoxia conditions.
期刊介绍：
Bulletin of Experimental Biology and Medicine presents original peer reviewed research papers and brief reports on priority new research results in physiology, biochemistry, biophysics, pharmacology, immunology, microbiology, genetics, oncology, etc. Novel trends in science are covered in new sections of the journal - Biogerontology and Human Ecology - that first appeared in 2005.
World scientific interest in stem cells prompted inclusion into Bulletin of Experimental Biology and Medicine a quarterly scientific journal Cell Technologies in Biology and Medicine (a new Russian Academy of Medical Sciences publication since 2005). It publishes only original papers from the leading research institutions on molecular biology of stem and progenitor cells, stem cell as the basis of gene therapy, molecular language of cell-to-cell communication, cytokines, chemokines, growth and other factors, pilot projects on clinical use of stem and progenitor cells.
The Russian Volume Year is published in English from April.
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