title: The Tet1 and histone methylation expression pattern in dairy goat testis.
abstract: DNA methylation and histone methylation are critical for mammalian development. Ten-eleven translocation (Tet1), a key regulator of DNA methylation, has been identified as a key enzyme for the activation of DNA demethylation; histone H3 lysine 9 (H3K9) and 27 (H3K27) methylation repress gene expression. Significant progress on the biological functions of Tet proteins has been made in mice and humans. However, their expression pattern and function in the male germ cells in the dairy goat testis are still unclear. The present study described the expression pattern of Tet1, H3K9, and H3K27 in the dairy goat testis and cultured goat spermatogonia stem cells (gSSCs). The results showed that Tet1 was weakly expressed in the dairy goat's testis compared to other organ tissues. Tet1, 5-hydroxymethylcytosine, H3K9, and H3K27 expressions were positive and dynamically changing during spermatogenesis; however, they showed weak expression in neonate stage in vivo. Tet1 and 5-hydroxymethylcytosine showed low expression in gSSCs in vitro in differentiated cultures. These will provide new perspectives for DNA methylation/demethylation and better regulation of epigenetic modifications in gSSCs.
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Liming
authors: L
authors: Zheng
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Haijing
authors: H
authors: Zhu
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Furong
authors: F
authors: Tang
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Hailong
authors: H
authors: Mu
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Na
authors: N
authors: Li
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China.
authors: Jiang
authors: J
authors: Wu
authors: College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China. Electronic address: jinlianhua@nwsuaf.edu.cn.
authors: Jinlian
authors: J
authors: Hua
mesh_terms: D044503:5-Methylcytosine / Q000031:analogs & derivatives; D000818:Animals; D002478:Cells, Cultured; D003596:Cytosine / Q000031:analogs & derivatives / Q000378:metabolism; D019175:DNA Methylation / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics*; D003612:Dairying; D053595:Embryonic Stem Cells / Q000378:metabolism; D044127:Epigenesis, Genetic; D005455:Fluorescent Antibody Technique; D015870:Gene Expression; D006041:Goats; D006657:Histones / Q000378:metabolism*; D008297:Male; D008745:Methylation; D013091:Spermatogenesis; D013093:Spermatogonia / Q000378:metabolism; D013737:Testis / Q000378:metabolism*
chemical_list: D004268:DNA-Binding Proteins; D006657:Histones; C011865:5-hydroxymethylcytosine; D044503:5-Methylcytosine; D003596:Cytosine
keywords: 5-Hydroxymethylcytosine; DNA (de)methylation; Dairy goat; Histone H3 lysine 9 and 27; Spermatogonia stem cell; Tet (ten-eleven translocation) protein 1