Zoological Research最新文献

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IDH2 and GLUD1 depletion arrests embryonic development through an H4K20me3 epigenetic barrier in porcine parthenogenetic embryos. 在猪孤雌胚胎中,IDH2 和 GLUD1 的耗竭通过 H4K20me3 表观遗传屏障阻止胚胎发育。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.219
Cheng-Lin Zhan, Qin-Yue Lu, Song-Hee Lee, Xiao-Han Li, Ji-Dam Kim, Gyu-Hyun Lee, Jae-Min Sim, Hyeon-Ji Song, Ying-Yan Jin, Xiang-Shun Cui
{"title":"IDH2 and GLUD1 depletion arrests embryonic development through an H4K20me3 epigenetic barrier in porcine parthenogenetic embryos.","authors":"Cheng-Lin Zhan, Qin-Yue Lu, Song-Hee Lee, Xiao-Han Li, Ji-Dam Kim, Gyu-Hyun Lee, Jae-Min Sim, Hyeon-Ji Song, Ying-Yan Jin, Xiang-Shun Cui","doi":"10.24272/j.issn.2095-8137.2024.219","DOIUrl":"10.24272/j.issn.2095-8137.2024.219","url":null,"abstract":"<p><p>Isocitrate dehydrogenase 2 (IDH2) and glutamate dehydrogenase 1 (GLUD1) are key enzymes involved in the production of α-ketoglutarate (α-KG), a metabolite central to the tricarboxylic acid cycle and glutamine metabolism. In this study, we investigated the impact of IDH2 and GLUD1 on early porcine embryonic development following <i>IDH2</i> and <i>GLUD1</i> knockdown (KD) via double-stranded RNA (dsRNA) microinjection. Results showed that KD reduced α-KG levels, leading to delayed embryonic development, decreased blastocyst formation, increased apoptosis, reduced blastomere proliferation, and pluripotency. Additionally, <i>IDH2</i> and <i>GLUD1</i> KD induced abnormally high levels of trimethylation of lysine 20 of histone H4 (H4K20me3) at the 4-cell stage, likely resulting in transcriptional repression of embryonic genome activation (EGA)-related genes. Notably, KD of lysine methyltransferase 5C ( <i>KMT5C</i>) and supplementation with exogenous α-KG reduced H4K20me3 expression and partially rescued these defects, suggesting a critical role of <i>IDH2</i> and <i>GLUD1</i> in the epigenetic regulation and proper development of porcine embryos. Overall, this study highlights the significance of <i>IDH2</i> and <i>GLUD1</i> in maintaining normal embryonic development through their influence on α-KG production and subsequent epigenetic modifications.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1175-1187"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Convergent evolution in high-altitude and marine mammals: Molecular adaptations to pulmonary fibrosis and hypoxia. 高海拔和海洋哺乳动物的趋同进化:对肺纤维化和缺氧的分子适应。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.029
Bo-Xiong Guo, Ya Zhang, Xiao-Yu Sun, Yi-Xuan Sun, Wen-Jun Lv, Shi-Xia Xu, Guang Yang, Wen-Hua Ren
{"title":"Convergent evolution in high-altitude and marine mammals: Molecular adaptations to pulmonary fibrosis and hypoxia.","authors":"Bo-Xiong Guo, Ya Zhang, Xiao-Yu Sun, Yi-Xuan Sun, Wen-Jun Lv, Shi-Xia Xu, Guang Yang, Wen-Hua Ren","doi":"10.24272/j.issn.2095-8137.2024.029","DOIUrl":"10.24272/j.issn.2095-8137.2024.029","url":null,"abstract":"<p><p>High-altitude and marine mammals inhabit distinct ecosystems but share a common challenge: hypoxia. To survive in low-oxygen environments, these species have evolved similar phenotypic pulmonary adaptations, characterized by a high density of elastic fibers. In this study, we explored the molecular mechanisms underlying these adaptations, focusing on pulmonary fibrosis and hypoxia tolerance through comparative genomics and convergent evolution analyses. We observed significant expansions and contractions in certain gene families across both high-altitude and marine mammals, closely associated with processes involved in pulmonary fibrosis. Notably, members of the keratin gene family, such as <i>KRT17</i> and <i>KRT14</i>, appear to be associated with the development of the dense elastic fiber phenotype observed in the lungs of hypoxia-tolerant mammals. Through selection pressure and amino acid substitution analyses, we identified multiple genes exhibiting convergent accelerated evolution, positive selection, and amino acid substitution in these species, associated with adaptation to hypoxic environments. Specifically, the convergent evolution of <i>ZFP36L1</i>, <i>FN1</i>, and <i>NEDD9</i> was found to contribute to the high density of elastic fibers in the lungs of both high-altitude and marine mammals, facilitating their hypoxia tolerance. Additionally, we identified convergent amino acid substitutions and gene loss events associated with sperm development, differentiation, and spermatogenesis, such as amino acid substitutions in <i>SLC26A3</i> and pseudogenization of <i>CFAP47</i>, as confirmed by PCR. These genetic alterations may be linked to changes in the reproductive capabilities of these animals. Overall, this study offers novel perspectives on the genetic and molecular adaptations of high-altitude and marine mammals to hypoxic environments, with a particular emphasis on pulmonary fibrosis.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1209-1220"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pursuing innovation in a new era. 在新时代追求创新。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.326
Yong-Gang Yao, Peng Shi
{"title":"Pursuing innovation in a new era.","authors":"Yong-Gang Yao, Peng Shi","doi":"10.24272/j.issn.2095-8137.2024.326","DOIUrl":"10.24272/j.issn.2095-8137.2024.326","url":null,"abstract":"","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1232-1234"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668959/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Peptide Cy RL-QN15 accelerates hair regeneration in diabetic mice by binding to the Frizzled-7 receptor. 多肽 Cy RL-QN15 通过与 Frizzled-7 受体结合加速糖尿病小鼠的毛发再生。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.134
Yu-Tong Wu, Ze-Qiong Ru, Ying Peng, Zhe Fu, Qiu-Ye Jia, Zi-Jian Kang, Yuan-Sheng Li, Yu-Bing Huang, Sai-Ge Yin, Kun Guo, Nai-Xin Liu, Cheng-An Feng, Jing Tang, Bai-Yu Zhang, Zhi Yang, Ying Wang, Xin-Wang Yang
{"title":"Peptide Cy <sub>RL-QN15</sub> accelerates hair regeneration in diabetic mice by binding to the Frizzled-7 receptor.","authors":"Yu-Tong Wu, Ze-Qiong Ru, Ying Peng, Zhe Fu, Qiu-Ye Jia, Zi-Jian Kang, Yuan-Sheng Li, Yu-Bing Huang, Sai-Ge Yin, Kun Guo, Nai-Xin Liu, Cheng-An Feng, Jing Tang, Bai-Yu Zhang, Zhi Yang, Ying Wang, Xin-Wang Yang","doi":"10.24272/j.issn.2095-8137.2024.134","DOIUrl":"10.24272/j.issn.2095-8137.2024.134","url":null,"abstract":"<p><p>Individuals with diabetes frequently face serious challenges, including delayed wound healing and increased risk of infection. Notably, the regeneration of hair follicles plays a crucial role in accelerating diabetic skin damage repair, reducing the risk of infection, and enhancing overall skin health. Research has predominantly emphasized the re-epithelialization of diabetic wounds, with a paucity of in-depth studies on hair follicle regeneration. In the current study, we explored the effects of a bioactive amphibian-derived peptide, Cy <sub>RL-QN15</sub>, on promoting hair regeneration in a diabetic skin model. <i>In vivo</i> experiments demonstrated that local treatment with Cy <sub>RL-QN15</sub> not only accelerated wound healing of scalded skin on the backs of diabetic Kunming (KM) mice but also improved growth of damaged hair follicles. Additionally, back-shaved diabetic C57BL/6 mice showed a significant increase in the growth of newly formed hair after 28 days of continuous Cy <sub>RL-QN15</sub> treatment. Further analysis indicated that the hair-regenerating effects of Cy <sub>RL-QN15</sub> were closely associated with the proliferation and migration of hair follicle stem cells (HFSCs). Cy <sub>RL-QN15</sub> enhanced intracellular β-catenin expression by binding to the Frizzled-7 receptor on the surface of HFSCs. The up-regulation in β-catenin modulated the levels of downstream proteins, such as c-MYC, Cyclin D1, and Lef1, ultimately inducing hair regeneration. This study not only reveals the robust effects of the bioactive peptide Cy <sub>RL-QN15</sub> in hair follicle regeneration but also provides novel avenues for the development of more targeted and effective therapeutics for diabetic wound healing in the future.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1287-1299"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142548387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ferroptosis in ischemic stroke: Animal models and mechanisms. 缺血性中风中的铁蛋白沉积:动物模型与机制
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.239
Qing-Zhang Tuo, Peng Lei
{"title":"Ferroptosis in ischemic stroke: Animal models and mechanisms.","authors":"Qing-Zhang Tuo, Peng Lei","doi":"10.24272/j.issn.2095-8137.2024.239","DOIUrl":"10.24272/j.issn.2095-8137.2024.239","url":null,"abstract":"<p><p>Stroke is a major cause of death and disability worldwide, with the majority of cases resulting from ischemic events due to arterial occlusion. Current therapeutic approaches focus on rapid reperfusion through intravenous thrombolysis and intravascular thrombectomy. Although these interventions can mitigate long-term disability, reperfusion itself may induce neuronal injury. The exact mechanisms underlying neuronal damage following cerebral ischemia have yet to be reported. Recent research suggests that ferroptosis may play a significant role in post-ischemic neuronal death, which can be targeted to prevent neuronal loss. This review explores the three essential hallmarks of ferroptosis: the presence of redox-active iron, the peroxidation of polyunsaturated fatty acid-containing phospholipids, and the loss of lipid peroxide repair capacity. The involvement of ferroptosis in neuronal injury following ischemic stroke is also explored, along with an overview of ferroptosis-associated changes in different ischemic stroke animal models. Furthermore, recent therapeutic interventions targeting the ferroptosis pathway, as well as the opportunities, difficulties, and future directions of ferroptosis-targeted therapies in ischemic stroke, are discussed.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1235-1248"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668946/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142478196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Repressor elements provide insights into tissue development and phenotypes in pigs. 转录因子有助于深入了解猪的组织发育和表型。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.043
Yue-Dong Zhang, Chao Guo, Hang Liu, Yun Gao, Yongjun Tan, Longjian Niu, Ligang Wang, Lixian Wang, David M Irwin, Chunhui Hou, Zhong-Yin Zhou, Ya-Ping Zhang
{"title":"Repressor elements provide insights into tissue development and phenotypes in pigs.","authors":"Yue-Dong Zhang, Chao Guo, Hang Liu, Yun Gao, Yongjun Tan, Longjian Niu, Ligang Wang, Lixian Wang, David M Irwin, Chunhui Hou, Zhong-Yin Zhou, Ya-Ping Zhang","doi":"10.24272/j.issn.2095-8137.2024.043","DOIUrl":"10.24272/j.issn.2095-8137.2024.043","url":null,"abstract":"<p><p>Repressor elements significantly influence economically relevant phenotypes in pigs; however, their precise roles and characteristics are inadequately understood. In the present study, we employed H3K27me3 profiling, assay for transposase-accessible chromatin with highthroughput sequencing (ATAC-seq), and RNA sequencing (RNA-seq) data across six tissues derived from three embryonic layers to identify and map 2 034 super repressor elements (SREs) and 22 223 typical repressor elements (TREs) in the pig genome. Notably, many repressor elements were conserved across mesodermal and ectodermal tissues. SREs exhibited tight regulation of their target genes, affecting a limited number of genes within a specific genomic region with pronounced effects, while TREs exerted broader but weaker regulation over a wider range of target genes. Furthermore, in neuronal tissues, genes regulated by repressor elements started to be repressed during the differentiation of stem cells into progenitor cells. Notably, analysis showed that many repressor elements exhibited cooperative and additive effects on the modulation of <i>KLF4</i> expression. This research provides the first comprehensive map of pig repressor elements, serving as an essential reference for future studies on repressor elements.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1313-1326"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668954/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142548388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Maternal sleep deprivation disrupts glutamate metabolism in offspring rats. 母鼠睡眠不足会破坏后代大鼠的谷氨酸代谢。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.250
Wen-Ting He, Dong-Xu Li, Jin-Hua Fan, Zheng-Yu Yao, Yu-Peng Cun, Zhi-Fang Dong
{"title":"Maternal sleep deprivation disrupts glutamate metabolism in offspring rats.","authors":"Wen-Ting He, Dong-Xu Li, Jin-Hua Fan, Zheng-Yu Yao, Yu-Peng Cun, Zhi-Fang Dong","doi":"10.24272/j.issn.2095-8137.2024.250","DOIUrl":"10.24272/j.issn.2095-8137.2024.250","url":null,"abstract":"<p><p>Maternal sleep deprivation (MSD) has emerged as a significant public health concern, yet its effects on offspring metabolism remain poorly understood. This study investigated the metabolomic implications of MSD on offspring cognitive development, with a particular focus on alterations in glutamate metabolism. Pregnant rats were subjected to sleep deprivation during late gestation. Plasma and brain samples from their offspring were collected at different postnatal days (P1, P7, P14, and P56) and analyzed using untargeted metabolomics with liquid chromatography-mass spectrometry. Metabolomic analysis revealed significant differences in various amino acids, including L-glutamate, L-phenylalanine, L-tyrosine, and L-tryptophan, which are crucial for cognitive function. Subsequent differential analysis and partial least squares discriminant analysis (sPLS-DA) demonstrated a gradual reduction in these metabolic differences in the brain as the offspring underwent growth and development. KEGG pathway analysis revealed differential regulation of several pathways, including alanine, aspartate, and glutamate metabolism, glutathione metabolism, arginine biosynthesis, aminoacyl-tRNA biosynthesis, histidine metabolism, and taurine and hypotaurine metabolism, at different developmental stages. Mantel and Spearman analyses indicated that the observed changes in metabolites in MSD progeny may be related to various gut microbes, <i>Ruminococcus_1</i>, <i>Ruminococcaceae_UCG-005</i>, and <i>Eubacterium_coprostanoligenes_group.</i> Biochemical assays further demonstrated developmental changes in the L-glutamate metabolic pathway. Collectively, these findings suggest that MSD not only affects maternal well-being but also has enduring metabolic consequences for offspring, particularly impacting pathways linked to cognitive function. This highlights the importance of addressing maternal sleep health to mitigate potential long-term consequences for offspring.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1221-1231"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pancreatic agenesis and altered m6A methylation in the pancreas of PDX1-mutant cynomolgus macaques. PDX1突变猕猴胰腺的胰腺发育不良和m6A甲基化改变。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.044
Wen-Hui Zhang, Jiong-Han Zhuang, Yun-Yi Guo, Xue-Ying Chen, Ya-Qing Li, Jie-Qiu Xu, An-Ran Zhang, Bao-Yi Chen, Wei Meng, Yan-Hua Zhu, Jun-Jiu Huang, Yong-Long Guo, Shi-Hua Yang
{"title":"Pancreatic agenesis and altered m6A methylation in the pancreas of PDX1-mutant cynomolgus macaques.","authors":"Wen-Hui Zhang, Jiong-Han Zhuang, Yun-Yi Guo, Xue-Ying Chen, Ya-Qing Li, Jie-Qiu Xu, An-Ran Zhang, Bao-Yi Chen, Wei Meng, Yan-Hua Zhu, Jun-Jiu Huang, Yong-Long Guo, Shi-Hua Yang","doi":"10.24272/j.issn.2095-8137.2024.044","DOIUrl":"10.24272/j.issn.2095-8137.2024.044","url":null,"abstract":"<p><p>As an essential transcriptional activator, <i>PDX1</i> plays a crucial role in pancreatic development and β-cell function. Mutations in the <i>PDX1</i> gene may lead to type 4 maturity-onset diabetes of the young (MODY4) and neonatal diabetes mellitus. However, the precise mechanisms underlying MODY4 remain elusive due to the paucity of clinical samples and pronounced differences in pancreatic architecture and genomic composition between humans and existing animal models. In this study, three <i>PDX1</i>-mutant cynomolgus macaques were generated using CRISPR/Cas9 technology, all of which succumbed shortly postpartum, exhibiting pancreatic agenesis. Notably, one tri-allelic <i>PDX1</i>-mutant cynomolgus macaque (designated as M4) developed a pancreas, whereas the two mono-allelic <i>PDX1-</i>mutant cynomolgus macaques displayed no anatomical evidence of pancreatic formation. RNA sequencing of the M4 pancreas revealed substantial molecular changes in both endocrine and exocrine functions, indicating developmental delay and <i>PDX1</i> haploinsufficiency. A marked change in m6A methylation was identified in the M4 pancreas, confirmed through cultured <i>PDX1</i>-mutant islet organoids. Notably, overexpression of the m6A modulator METTL3 restored function in heterozygous <i>PDX1</i>-mutant islet organoids. This study highlights a novel role of m6A methylation modification in the progression of MODY4 and provides valuable molecular insights for preclinical research.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1188-1200"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Whole-genome methylation reveals tissue-specific differences in non-CG methylation in bovine. 全基因组甲基化揭示了牛非 CG 甲基化的组织特异性差异。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.221
Jing Wang, Wen Yuan, Fang Liu, Guang-Bo Liu, Xiao-Xiong Geng, Chen Li, Chen-Chen Zhang, Nan Li, Xue-Ling Li
{"title":"Whole-genome methylation reveals tissue-specific differences in non-CG methylation in bovine.","authors":"Jing Wang, Wen Yuan, Fang Liu, Guang-Bo Liu, Xiao-Xiong Geng, Chen Li, Chen-Chen Zhang, Nan Li, Xue-Ling Li","doi":"10.24272/j.issn.2095-8137.2024.221","DOIUrl":"10.24272/j.issn.2095-8137.2024.221","url":null,"abstract":"<p><p>DNA methylation at non-CG dinucleotides (mCH, H=A, C, T) widely occurs and plays an important role in specific cell types, including pluripotent, neural, and germ cells. However, the functions and regulatory mechanisms of mCH, particularly in species other than humans and mice, remain inadequately explored. In this study, we analyzed the distribution of mCH across different bovine tissues, identifying significantly elevated mCH levels in bovine embryonic stem cells (bESCs), as well as brain, spleen, and ileum tissues compared to other tissues. Marked differences in mCH patterns between somatic cells and bESCs were observed, reflecting distinct base preferences and the differential expression of DNA methyltransferases. We also identified exon methylation in both CG and non-CG contexts, resembling gene-associated methylation patterns observed in plants. To characterize tissue-specific variations in mCH, we developed a novel method for differential mCH analysis. Results indicated that mCH is not randomly distributed but tends to be enriched in tissue-specific functional regions. Furthermore, regression models demonstrated a positional correlation between CG methylation and mCH. This study enhances our understanding of mCH distribution and function in bovine somatic and stem cells, providing new insights into its potential roles across species and tissues. These findings advance knowledge of epigenetic mechanisms, shedding light on the potential involvement of mCH in development and disease processes.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1371-1384"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668945/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrative cross-species transcriptome analysis reveals earlier occurrence of myelopoiesis in pre-circulation primates compared to mice. 跨物种转录组综合分析显示,与小鼠相比,前循环灵长类动物的骨髓造血发生较早。
IF 4 1区 生物学
Zoological Research Pub Date : 2024-11-18 DOI: 10.24272/j.issn.2095-8137.2024.173
Junjie Du, Zongcheng Li, Yandong Gong, Yu Lan, Bing Liu
{"title":"Integrative cross-species transcriptome analysis reveals earlier occurrence of myelopoiesis in pre-circulation primates compared to mice.","authors":"Junjie Du, Zongcheng Li, Yandong Gong, Yu Lan, Bing Liu","doi":"10.24272/j.issn.2095-8137.2024.173","DOIUrl":"10.24272/j.issn.2095-8137.2024.173","url":null,"abstract":"<p><p>Hematopoiesis originates in the yolk sac, which forms prior to the establishment of blood circulation and exhibits distinct developmental processes between primates and mice. Despite increasing appreciation of yolk sac hematopoiesis for its lifelong contribution to the adult hematopoietic system and its regulatory roles in organogenesis, cross-species differences, particularly before the onset of blood circulation, remain incompletely understood. In this study, we constructed an integrative cross-species transcriptome atlas of pre-circulation hematopoiesis in humans, monkeys ( <i>Macaca fascicularis</i>), and mice. This analysis identified conserved populations between primates and mice, while also revealing more differentiated myeloid, erythroid, and megakaryocytic lineages in pre-circulation primates compared to mice. Specifically, <i>SPP1</i>-expressing macrophages were detected in primates before the onset of blood circulation but were absent in mice. Cell-cell communication analysis identified <i>CSF1</i> <sup>+</sup> extraembryonic mesoderm cells as a potential supportive niche for macrophage generation, with ligand-receptor interactions between macrophages and other cell populations in the human yolk sac. Interestingly, pre-circulation <i>SPP1</i> <sup><i>+</i></sup> macrophages exhibited hallmark signatures reminiscent of a macrophage subset that positively regulates hematopoietic stem cell generation. Our findings provide a valuable cross-species resource, advancing our understanding of human pre-circulation yolk sac hematopoiesis and offering a theoretical basis for the regeneration of functional blood cells.</p>","PeriodicalId":48636,"journal":{"name":"Zoological Research","volume":"45 6","pages":"1276-1286"},"PeriodicalIF":4.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668956/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142478197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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