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Zhang Z, Zhang Y, Ma L, Bao Q, Liang C, Chu M, Guo X, Bao P, Yan P. DNA methylation dynamics during yak adipocyte differentiation. Int J Biol Macromol 2024; 261:129715. [PMID: 38281519 DOI: 10.1016/j.ijbiomac.2024.129715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 01/30/2024]
Abstract
In mammals, epigenetic modifications involving DNA methylation are necessary for the completion of the cell differentiation process. However, the global DNA methylation landscape and its dynamics during yak adipocyte differentiation remain unexplored. Here, we performed whole-genome bisulfite sequencing (WGBS) to asses DNA methylation in yak preadipocytes and adipocytes, combining these results with those of our previous studies on changes in chromatin accessibility and gene expression during yak adipogenesis. The results showed that CG methylation levels were lower in promoter than in exon and intron, and gradually decreasing from the distal regions to transcription start site (TSS). There was a significant negative correlation between CG methylation levels located in promoter and gene expression levels. The 46 genes shared by CG differentially methylated regions (DMRs) and differential chromatin accessibility were significantly enriched in Hedgehog and PI3K-Akt signaling pathways. ATAC-seq peaks with high chromatin accessibility located in both promoter (≤ 2 kb from TSS) and distal (> 2 kb from TSS) regions corresponded to low methylation levels. Taken together, these findings demonstrated that DNA methylation and its interactions with chromatin accessibility regulate gene expression during yak adipocyte differentiation, contributing to the understanding of mechanisms of various epigenetic modifications and their interactions in adipogenesis.
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Affiliation(s)
- Zhilong Zhang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Yongfeng Zhang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China; School of Basic Medical Science, Xi'an Medical University, Xi'an 710021, China
| | - Lanhua Ma
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Qi Bao
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Chunnian Liang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Xian Guo
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Pengjia Bao
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China; Institute of Western Agriculture, the Chinese Academy of Agricultural Sciences, Changji 831100, China.
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2
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Zhang T, Li C, Deng J, Jia Y, Qu L, Ning Z. Chicken Hypothalamic and Ovarian DNA Methylome Alteration in Response to Forced Molting. Animals (Basel) 2023; 13:ani13061012. [PMID: 36978553 PMCID: PMC10044502 DOI: 10.3390/ani13061012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/12/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
Epigenetic modifications play an important role in regulating animal adaptation to external stress. To explore how DNA methylation regulates the expression levels of related genes during forced molting (FM) of laying hens, the hypothalamus and ovary tissues were analyzed at five periods using Whole-Genome Bisulfite Sequencing. The results show that methylation levels fluctuated differently in the exon, intron, 5′UTR, 3′UTR, promoter, and intergenic regions of the genome during FM. In addition, 16 differentially methylated genes (DMGs) regulating cell aging, immunity, and development were identified in the two reversible processes of starvation and redevelopment during FM. Comparing DMGs with differentially expressed genes (DEGs) obtained in the same periods, five hypermethylated DMGs (DSTYK, NKTR, SMOC1, SCAMP3, and ATOH8) that inhibited the expression of DEGs were found. Therefore, DMGs epigenetically modify the DEGs during the FM process of chickens, leading to the rapid closure and restart of their reproductive function and a re-increase in the egg-laying rate. Therefore, this study further confirmed that epigenetic modifications could regulate gene expression during FM and provides theoretical support for the subsequent optimization of FM technology.
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Affiliation(s)
- Tongyu Zhang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chengfeng Li
- Hubei Shendan Healthy Food Co., Ltd., Xiaogan 432600, China
| | - Jianwen Deng
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yaxiong Jia
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100091, China
| | - Lujiang Qu
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Zhonghua Ning
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
- Correspondence:
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3
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Du G, Cheng X, Zhang Z, Han L, Wu K, Li Y, Lin X. TGF-Beta Induced Key Genes of Osteogenic and Adipogenic Differentiation in Human Mesenchymal Stem Cells and MiRNA-mRNA Regulatory Networks. Front Genet 2021; 12:759596. [PMID: 34899844 PMCID: PMC8656281 DOI: 10.3389/fgene.2021.759596] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/28/2021] [Indexed: 12/21/2022] Open
Abstract
Background: The clinical efficacy of osteoporosis therapy is unsatisfactory. However, there is currently no gold standard for the treatment of osteoporosis. Recent studies have indicated that a switch from osteogenic to adipogenic differentiation in human bone marrow mesenchymal stem cells (hMSCs) induces osteoporosis. This study aimed to provide a more comprehensive understanding of the biological mechanisms involved in this process and to identify key genes involved in osteogenic and adipogenic differentiation in hMSCs to provide new insights for the prevention and treatment of osteoporosis. Methods: Microarray and bioinformatics approaches were used to identify the differentially expressed genes (DEGs) involved in osteogenic and adipogenic differentiation, and the biological functions and pathways of these genes were analyzed. Hub genes were identified, and the miRNA–mRNA interaction networks of these hub genes were constructed. Results: In an optimized microenvironment, transforming growth factor-beta (TGF-beta) could promote osteogenic differentiation and inhibit adipogenic differentiation of hMSCs. According to our study, 98 upregulated genes involved in osteogenic differentiation and 66 downregulated genes involved in adipogenic differentiation were identified, and associated biological functions and pathways were analyzed. Based on the protein–protein interaction (PPI) networks, the hub genes of the upregulated genes (CTGF, IGF1, BMP2, MMP13, TGFB3, MMP3, and SERPINE1) and the hub genes of the downregulated genes (PPARG, TIMP3, ANXA1, ADAMTS5, AGTR1, CXCL12, and CEBPA) were identified, and statistical analysis revealed significant differences. In addition, 36 miRNAs derived from the upregulated hub genes were screened, as were 17 miRNAs derived from the downregulated hub genes. Hub miRNAs (hsa-miR-27a/b-3p, hsa-miR-128-3p, hsa-miR-1-3p, hsa-miR-98-5p, and hsa-miR-130b-3p) coregulated both osteogenic and adipogenic differentiation factors. Conclusion: The upregulated hub genes identified are potential targets for osteogenic differentiation in hMSCs, whereas the downregulated hub genes are potential targets for adipogenic differentiation. These hub genes and miRNAs play important roles in adipogenesis and osteogenesis of hMSCs. They may be related to the prevention and treatment not only of osteoporosis but also of obesity.
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Affiliation(s)
- Genfa Du
- Department of Orthopedics, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Xinyuan Cheng
- The Fourth Clinical Medical College, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Zhen Zhang
- Department of Orthopedics, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Linjing Han
- Department of Orthopedics, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Keliang Wu
- The Fourth Clinical Medical College, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Yongjun Li
- Department of Orthopedics, Shunde Hospital Guangzhou University of Chinese Medicine, Foshan, China
| | - Xiaosheng Lin
- Department of Orthopedics, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
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Gong P, Jing Y, Liu Y, Wang L, Wu C, Du Z, Li H. Whole-genome bisulfite sequencing of abdominal adipose reveals DNA methylation pattern variations in broiler lines divergently selected for fatness. J Anim Sci 2021; 99:skaa408. [PMID: 33373456 PMCID: PMC8611762 DOI: 10.1093/jas/skaa408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/23/2020] [Indexed: 11/14/2022] Open
Abstract
The methylation status of pivotal genes involved in fat deposition in chickens has been extensively studied. However, the whole-genome DNA methylation profiles of broiler abdominal adipose tissue remain poorly understood. Using whole-genome bisulfite sequencing, we generated DNA methylation profiles of chicken abdominal adipose tissue from Northeast Agricultural University broiler lines divergently selected for abdominal fat content. We aimed to explore whether DNA methylation was associated with abdominal fat deposition in broilers. The whole-genome DNA methylation profiles of fat- and lean-line broilers abdominal adipose tissue were constructed. The DNA methylation levels of functional genomic regions in the fat broiler were higher than those in the lean broiler, especially in the 3' untranslated regions (UTRs) and exons in the non-CG contexts. Additionally, we identified 29,631 differentially methylated regions and, subsequently, annotated 6,484 and 2,016 differentially methylated genes (DMGs) in the gene body and promoter regions between the two lines, respectively. Functional annotation showed that the DMGs in promoter regions were significantly enriched mainly in the triglyceride catabolic process, lipid metabolism-related pathways, and extracellular matrix signal pathways. When the DMG in promoter regions and differentially expressed genes were integrated, we identified 30 genes with DNA methylation levels that negatively correlated with their messenger RNA (mRNA) expression, of which CMSS1 reached significant levels (false discovery rate < 0.05). These 30 genes were mainly involved in fatty acid metabolism, peroxisome-proliferator-activated receptor signaling, Wnt signaling pathways, transmembrane transport, RNA degradation, and glycosaminoglycan degradation. Comparing the DNA methylation profiles between fat- and lean-line broilers demonstrated that DNA methylation is involved in regulating broiler abdominal fat deposition. Our study offers a basis for further exploring the underlying mechanisms of abdominal adipose deposition in broilers.
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Affiliation(s)
- Pengfei Gong
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Yang Jing
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Yumeng Liu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Lijian Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Chunyan Wu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Zhiqiang Du
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
| | - Hui Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and
Rural Affairs, Harbin, P.R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education
Department of Heilongjiang Province, Harbin, P.R.
China
- College of Animal Science and Technology, Northeast Agricultural
University, Harbin, P.R. China
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5
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Cao H, Wen Y, Xu X, Liu K, Liu H, Tan Y, Zhou W, Mao H, Dong X, Xu N, Yin Z. Investigation of the CEBPA gene expression pattern and association analysis of its polymorphisms with meat quality traits in chickens. Anim Biotechnol 2020; 33:448-456. [PMID: 32776801 DOI: 10.1080/10495398.2020.1803343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Meat quality is closely related to the fat deposition which is regulated by a cascade of transcription factors. As a transcription factor, the CCAAT/enhancer binding protein alpha (CEBPA) is considered as one of the key molecules regulating adipogenesis. Therefore, the objective of this study was to detect the expression pattern of the CEBPA gene and evaluate whether its single nucleotide polymorphisms (SNPs) were associated with the meat quality traits in Wuliang Mountain Black-bone (WLMB) chickens. The results showed that the chicken CEBPA mRNA was widely expressed in the 11 tissues, and the expression pattern of it might be tissue- and time-specific different. The locus of g.74C > G was not significantly associated with chicken meat quality. For the locus of g.552G > A, chickens with the GG genotype showed higher pH (p < 0.01), lower drip loss (p < 0.01) and higher intramuscular fat (p < 0.05) than those with other genotypes. It suggested that polymorphisms of the CEBPA gene were significantly associated with the meat quality traits of WLMB chickens. The results of this study contribute to the functional research of the CEBPA gene and lay the foundation for improving meat quality based on the marker-assisted selection in chickens.
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Affiliation(s)
- Haiyue Cao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yaya Wen
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - XiuLi Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ke Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Honghua Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yuge Tan
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Haiguang Mao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xinyang Dong
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ningying Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhaozheng Yin
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
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6
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Zhang M, Li D, Zhai Y, Wang Z, Ma X, Zhang D, Li G, Han R, Jiang R, Li Z, Kang X, Sun G. The Landscape of DNA Methylation Associated With the Transcriptomic Network of Intramuscular Adipocytes Generates Insight Into Intramuscular Fat Deposition in Chicken. Front Cell Dev Biol 2020; 8:206. [PMID: 32300590 PMCID: PMC7142253 DOI: 10.3389/fcell.2020.00206] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/10/2020] [Indexed: 12/13/2022] Open
Abstract
Intramuscular fat (IMF), which regulated by genetics, nutrition and environment is an important factor that influencing meat quality. Up to now, the epigenetic regulation mechanism underlying poultry IMF deposition remains poorly understood. Here, we focused on the DNA methylation, which usually regulate genes in transcription level. To look into the essential role of DNA methylation on the IMF deposition, chicken intramuscular preadipocytes were isolated and cultured in vitro, and a model of intramuscular adipocyte differentiation was constructed. Combined the whole genome bisulfite sequencing (WGBS) and RNA-Seq technologies, we identified several methylated genes, which mainly affecting fatty acid metabolism and muscle development. Furthermore, we reported that DNA methylation regulate intramuscular adipogenesis by regulating the genes, such as collagen, type VI, alpha 1 (COL6A1) thus affecting IMF deposition. Overexpression of COL6A1 increases the lipid droplet and inhibits cell proliferation by regulating CHAD and CAMK2 in intramuscular adipocytes, while knockdown of COL6A1 shows the opposite effect. Taken together, our results reveal that DNA methylation plays an important role in poultry IMF deposition.
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Affiliation(s)
- Meng Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Donghua Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yanhui Zhai
- The First Clinical Hospital, Jilin University, Changchun, China
| | - Zhengzhu Wang
- The First Clinical Hospital, Jilin University, Changchun, China
| | - Xiangfei Ma
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Daoyu Zhang
- The First Clinical Hospital, Jilin University, Changchun, China
| | - Guoxi Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Ruili Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Ruirui Jiang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Zhuanjian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Xiangtao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Guirong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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7
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Sun Y, Li R, Zhai G, Zhang X, Wang Y. DNA methylation of the PLIN1 promoter downregulates expression in chicken lines. Arch Anim Breed 2019; 62:375-382. [PMID: 31807648 PMCID: PMC6852845 DOI: 10.5194/aab-62-375-2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 05/15/2019] [Indexed: 01/04/2023] Open
Abstract
Evidence suggests that Perilipin-1 (PLIN1) is subject to functional regulation by epigenetic modifications in women with obesity. However, whether chicken PLIN1 expression is regulated by DNA methylation is unknown. Here, Sequenom MassARRAY and real-time polymerase chain reaction (PCR) were conducted to analyze the promoter methylation status and expression of the PLIN1 gene in Northeast Agricultural University broiler lines divergently selected for abdominal fat content. We found that chicken PLIN1 expression was significantly higher in adipose tissue of fat-line broilers than in lean lines at 1-7 weeks of age, and was significantly positively correlated with abdominal fat percentage (AFP) in chicken adipose development (Pearson's r = 0.627 , P < 0.001 ). The region analyzed for DNA methylation was from - 12 to - 520 bp upstream of the translation start codon ATG, and had five CpG sites, where only the DNA methylation levels of CpG5 located at position - 490 bp were significantly higher in lean compared to fat chickens at 5 and 6 weeks ( P < 0.05 ) and were significantly negatively correlated with PLIN1 mRNA levels and AFP ( P < 0.05 ). These results shed new light on the regulation of hypertrophic growth in chicken adipose development.
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Affiliation(s)
- Yuhang Sun
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang 150030, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Rui Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang 150030, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Guiying Zhai
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang 150030, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xinyang Zhang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang 150030, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuxiang Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang 150030, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
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8
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Zhao J, Li FZ, Wu J, Yang H, Zheng J, Pang J, Meng FX, Wang F, Zhang YL. Effect of CREB1 promoter non-CpG island methylation on its differential expression profile on sheep ovaries associated with prolificacy. Tissue Cell 2019; 58:61-69. [PMID: 31133247 DOI: 10.1016/j.tice.2019.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/02/2019] [Accepted: 04/15/2019] [Indexed: 12/01/2022]
Abstract
This study aimed to investigate the effect of different methylated regions of cyclic-AMP response element binding protein 1 (CREB1) by comparing the high prolificacy (HP) group and low prolificacy (LP) group, which was detected in our previous study. The expression level of CREB1 mRNA in the ovaries of the HP group was higher than in the LP group (P < 0.05). The differential methylated region (DMR) had 4 methylated CG dinucleotides(CGs): -1546, -1544, -1494 and -1464. The DNA methylation levels of -1546 CGs and -1464 CGs were significantly higher in the HP group than in the LP group (P < 0.05). The activity from -1296 to +26 (without DMR) was significantly higher than the activity from -1598 to +26 (with DMR) (P < 0.05). The result of 5-aza-2'-deoxycytidine treatment indicated that the inhibition DNA methylation of DMR reduced the transcription of CREB1. The bioinformatics predictive analysis were found that the -1546 CG site was located in the CCAAT/enhancer-binding protein alpha (CEBPA) binding site and the -1464 CG site was located in the Sp1 binding site. Finally, this study revealed the relationship between the methylation of non-CpG sites of the promoter and transcription of CREB1. This study will provide a theoretical basis of the Hu sheep ovaries associated with DNA methylation.
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Affiliation(s)
- Jie Zhao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng-Zhe Li
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jie Wu
- Lang Fang Polytechnic Institute, Hebei, 065001, China
| | - Hua Yang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jian Zheng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Pang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fan-Xing Meng
- National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yan-Li Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.
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9
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Wu C, Wang Y, Gong P, Wang L, Liu C, Chen C, Jiang X, Dong X, Cheng B, Li H. Promoter Methylation Regulates ApoA-I Gene Transcription in Chicken Abdominal Adipose Tissue. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4535-4544. [PMID: 30932484 DOI: 10.1021/acs.jafc.9b00007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
As a central constituent of HDL (high-density lipoprotein), apolipoprotein A-I (ApoA-I) has a vital function in lipid metabolism. Our previous studies confirmed that ApoA-I was differentially expressed in the adipose tissue of the abdomen of lean and fat broilers. The aim of the current work was to evaluate whether the transcription of ApoA-I in chicken abdominal adipose tissue was regulated by DNA methylation. The methylation status of ApoA-I promoter CpG island (PCGI) and promoter non-CpG island (PNCGI) as well as the ApoA-I expression level in adipose tissue of lean and fat broilers were determined using Sequenom MassARRAY and real-time PCR. The correlation analysis results showed that the methylation level of PCGI and the ApoA-I mRNA expression level were negatively correlated. Bisulfite sequencing PCR was used to assess the methylation level of ApoA-I promoter in the ICP1 cells treated with 5-aza-2'-deoxycytidine (5-Aza-CdR: an inhibitor of DNA methyltransferase). The result showed that 5-Aza-CdR caused a reduction in the methylation level of the ApoA-I promoter, thereby causing an increase in expression of the ApoA-I mRNA. Meanwhile, luciferase reporter assays indicated that in vitro methylation of the ApoA-I promoter containing CpG island with CpG methyltransferase led to transcriptional repression. Furthermore, the noticeable activation of NRF1 on ApoA-I transcription was largely enhanced by the demethylation of the ApoA-I PCGI region. These observations indicated that the differential expression of ApoA-I gene in the adipose tissue of broilers could be mediated by transcription regulation, at least in part by DNA methylation in its PCGI region.
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Affiliation(s)
- Chunyan Wu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Yuxiang Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Pengfei Gong
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Lijian Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Chang Liu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Chong Chen
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Xiuying Jiang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Xiangyu Dong
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Bohan Cheng
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
| | - Hui Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction of Education Department of Heilongjiang Province, College of Animal Science and Technology , Northeast Agricultural University , Harbin 150030 , Heilongjiang , China
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Heuberger J, Hill U, Förster S, Zimmermann K, Malchin V, Kühl AA, Stein U, Vieth M, Birchmeier W, Leutz A. A C/EBPα-Wnt connection in gut homeostasis and carcinogenesis. Life Sci Alliance 2018; 2:e201800173. [PMID: 30599048 PMCID: PMC6306571 DOI: 10.26508/lsa.201800173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
This research reveals an antagonism between C/EBPα expression and activated Wnt signaling in the human and mouse gut and suggests a tumor suppressor function of C/EBPα in human and murine intestinal cancer. We explored the connection between C/EBPα (CCAAT/enhancer-binding protein α) and Wnt signaling in gut homeostasis and carcinogenesis. C/EBPα was expressed in human and murine intestinal epithelia in the transit-amplifying region of the crypts and was absent in intestinal stem cells and Paneth cells with activated Wnt signaling. In human colorectal cancer and murine APCMin/+ polyps, C/EBPα was absent in the nuclear β-catenin–positive tumor cells. In chemically induced intestinal carcinogenesis, C/EBPα KO in murine gut epithelia increased tumor volume. C/EBPα deletion extended the S-phase cell zone in intestinal organoids and activated typical proliferation gene expression signatures, including that of Wnt target genes. Genetic activation of β-catenin in organoids attenuated C/EBPα expression, and ectopic C/EBPα expression in HCT116 cells abrogated proliferation. C/EBPα expression accompanied differentiation of the colon cancer cell line Caco-2, whereas β-catenin stabilization suppressed C/EBPα. These data suggest homeostatic and oncogenic suppressor functions of C/EBPα in the gut by restricting Wnt signaling.
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Affiliation(s)
| | - Undine Hill
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Susann Förster
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | | | | | - Anja A Kühl
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Ulrike Stein
- Experimental and Clinical Research Center, Charite-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany.,German Cancer Consortium (Deutsches Konsortium für Translationale Krebsforschung), Heidelberg, Germany
| | - Michael Vieth
- Klinikum Bayreuth, Institute for Pathology, Bayreuth, Germany
| | | | - Achim Leutz
- Max Delbrück Center for Molecular Medicine, Berlin, Germany.,Institute of Biology, Humboldt University of Berlin, Berlin, Germany
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