TET2 is involved in DNA hydroxymethylation, cell proliferation and inflammatory response in keratinocytes

被引：11

作者：

Liu, Xinxin ^{[1
]}

Wang, Xin ^{[2
]}

Liu, Nian ^{[1
]}

Zhu, Ke ^{[1
]}

Zhang, Song ^{[1
]}

Duan, Xiaoru ^{[1
]}

Huang, Yuqiong ^{[1
]}

Jin, Zilin ^{[1
]}

Jaypaul, Himanshu ^{[1
]}

Wu, Yan ^{[1
]}

Chen, Hongxiang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Dermatol, 1277 Jiefang Ave, Wuhan 430022, Hebei, Peoples R China

[2] Nantong Univ, Dept Dermatol, Affiliated Hosp, Lucknow 226001, Uttar Pradesh, India

来源：

MOLECULAR MEDICINE REPORTS | 2020年 / 21卷 / 04期

基金：

中国国家自然科学基金;

关键词：

ten-eleven translocation-2; keratinocytes; hydroxy-methylation; proliferation; inflammation; EXPRESSION; PROTEINS; ROLES; 5-HYDROXYMETHYLCYTOSINE; 5-METHYLCYTOSINE; DEMETHYLATION;

D O I：

10.3892/mmr.2020.10989

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

DNA methylation and hydroxymethylation are the most common epigenetic modifications associated with the cell cycle and the inflammatory response. The present study aimed to investigate the role of 5-hydroxymethyl-cytosine (5-hmC) and ten-eleven translocation-2 (TET2) in keratinocytes. Following TET2 knockdown, dot blot analysis was performed to assess the levels of 5-hmC in keratinocytes, using HaCaT cells. Subsequently, the viability and cell cycle of HaCaT cells were assessed by MTT, Cell Counting Kit-8 assay and flow cytometric assays. Cyclin-dependent kinase inhibitor 2A and proinflammatory cytokine protein and mRNA expression levels were also detected. The present results suggested that TET2 may play an important role in regulating cellular proliferation by mediating DNA hydroxymethylation in HaCaT cells. In addition, TET2 knockdown decreased the production of proinflammatory cytokines, including lipocalin 2, S100 calcium binding protein A7, matrix metallopeptidase 9, C-X-C motif chemokine ligand 1, interferon regulatory factor 7 and interleukin-7 receptor. The present study suggested that TET2 regulated cell viability, apoptosis and the expression of inflammatory mediators in keratinocytes. Collectively, the results indicated that TET2 knockdown may relieve inflammatory responses in the skin.

引用

页码：1941 / 1949

页数：9

共 35 条

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