Mammalian Genome最新文献

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Identifying new molecular signatures and potential therapeutics for idiopathic pulmonary fibrosis: a network medicine approach 识别特发性肺纤维化的新分子特征和潜在疗法:一种网络医学方法
IF 2.5 4区 生物学
Mammalian Genome Pub Date : 2024-09-10 DOI: 10.1007/s00335-024-10069-w
Mecbure Nur Akca, Ceyda Kasavi
{"title":"Identifying new molecular signatures and potential therapeutics for idiopathic pulmonary fibrosis: a network medicine approach","authors":"Mecbure Nur Akca, Ceyda Kasavi","doi":"10.1007/s00335-024-10069-w","DOIUrl":"https://doi.org/10.1007/s00335-024-10069-w","url":null,"abstract":"<p>Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease characterized by excessive collagen deposition and fibrosis of the lung parenchyma, leading to respiratory failure. The molecular mechanisms underlying IPF pathogenesis remain incompletely understood, hindering the development of effective therapeutic strategies. We have used a network medicine approach to comprehensively analyze molecular interactions and identify novel molecular signatures and potential therapeutics associated with IPF progression. Our integrative analysis revealed dysregulated molecular networks that are central to IPF pathophysiology. We have highlighted key molecular players and signaling pathways that are implicated in aberrant fibrotic processes. This systems-level understanding enables the identification of new biomarkers and therapeutic targets for IPF, providing potential avenues for precision medicine. Drug repurposing analysis revealed several drug candidates with anti-fibrotic, anti-inflammatory, and anti-cancer activities that could potentially slow fibrotic progression and improve patient outcomes. This study offers new insights into the molecular underpinnings of IPF and highlights network medicine approaches in uncovering complex disease mechanisms. The molecular signatures and therapeutic targets identified hold promise for developing precision therapies tailored to individual patients, ultimately advancing the management of this debilitating lung disease.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Commentary: The International Mouse Phenotyping Consortium: high-throughput in vivo functional annotation of the mammalian genome 评论:国际小鼠表型协会:哺乳动物基因组的高通量活体功能注释
IF 2.5 4区 生物学
Mammalian Genome Pub Date : 2024-09-10 DOI: 10.1007/s00335-024-10068-x
K. C. Kent Lloyd
{"title":"Commentary: The International Mouse Phenotyping Consortium: high-throughput in vivo functional annotation of the mammalian genome","authors":"K. C. Kent Lloyd","doi":"10.1007/s00335-024-10068-x","DOIUrl":"https://doi.org/10.1007/s00335-024-10068-x","url":null,"abstract":"<p>The International Mouse Phenotyping Consortium (IMPC) is a worldwide effort producing and phenotyping knockout mouse lines to expose the pathophysiological roles of all genes in human diseases and make mice and data available and accessible to the global research community. It has created new knowledge on the function of thousands of genes for which little to anything was known. This new knowledge has informed the genetic basis of rare diseases, posited gene product influences on common diseases, influenced research on targeted therapies, revealed functional pleiotropy, essentiality, and sexual dimorphism, and many more insights into the role of genes in health and disease. Its scientific contributions have been many and widespread, however there remain thousands of “dark” genes yet to be illuminated. Nearing the end of its current funding cycle, IMPC is at a crossroads. The vision forward is clear, the path to proceed less so.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The interplay of hydrogen sulfide and microRNAs in cardiovascular diseases: insights and future perspectives. 硫化氢和 microRNAs 在心血管疾病中的相互作用:见解和未来展望。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-06-04 DOI: 10.1007/s00335-024-10043-6
Yunjia Song, Shuo Cao, Xutao Sun, Guozhen Chen
{"title":"The interplay of hydrogen sulfide and microRNAs in cardiovascular diseases: insights and future perspectives.","authors":"Yunjia Song, Shuo Cao, Xutao Sun, Guozhen Chen","doi":"10.1007/s00335-024-10043-6","DOIUrl":"10.1007/s00335-024-10043-6","url":null,"abstract":"<p><p>Hydrogen sulfide (H<sub>2</sub>S) is recognized as the third gasotransmitter, after nitric oxide (NO) and carbon monoxide (CO). It is known for its cardioprotective properties, including the relaxation of blood vessels, promotion of angiogenesis, regulation of myocardial cell apoptosis, inhibition of vascular smooth muscle cell proliferation, and reduction of inflammation. Additionally, abnormal H<sub>2</sub>S generation has been linked to the development of cardiovascular diseases (CVD), such as pulmonary hypertension, hypertension, atherosclerosis, vascular calcification, and myocardial injury. MicroRNAs (miRNAs) are non-coding, conserved, and versatile molecules that primarily influence gene expression by repressing translation and have emerged as biomarkers for CVD diagnosis. Studies have demonstrated that H<sub>2</sub>S can ameliorate cardiac dysfunction by regulating specific miRNAs, and certain miRNAs can also regulate H<sub>2</sub>S synthesis. The crosstalk between miRNAs and H<sub>2</sub>S offers a novel perspective for investigating the pathophysiology, prevention, and treatment of CVD. The present analysis outlines the interactions between H<sub>2</sub>S and miRNAs and their influence on CVD, providing insights into their future potential and advancement.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141248187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genomic patterns of selection in morphometric traits across diverse Indian cattle breeds. 印度不同牛种形态特征选择的基因组模式。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-07-16 DOI: 10.1007/s00335-024-10047-2
Divya Rajawat, Sonali Sonejita Nayak, Karan Jain, Anurodh Sharma, Subhashree Parida, Sarada Prasanna Sahoo, Bharat Bhushan, D B Patil, Triveni Dutt, Manjit Panigrahi
{"title":"Genomic patterns of selection in morphometric traits across diverse Indian cattle breeds.","authors":"Divya Rajawat, Sonali Sonejita Nayak, Karan Jain, Anurodh Sharma, Subhashree Parida, Sarada Prasanna Sahoo, Bharat Bhushan, D B Patil, Triveni Dutt, Manjit Panigrahi","doi":"10.1007/s00335-024-10047-2","DOIUrl":"10.1007/s00335-024-10047-2","url":null,"abstract":"<p><p>This study seeks a comprehensive exploration of genome-wide selective processes impacting morphometric traits across diverse cattle breeds, utilizing an array of statistical methods. Morphometric traits, encompassing both qualitative and quantitative variables, play a pivotal role in characterizing and selecting livestock breeds based on their external appearance, size, and physical attributes. While qualitative traits, such as color, horn structure, and coat type, contribute to adaptive features and breed identification, quantitative traits like body weight and conformation measurements bear a closer correlation with production characteristics. This study employs advanced genotyping technologies, including the Illumina BovineSNP50 Bead Chip and next-generation sequencing methods like Reduced Representation sequencing, to identify genomic signatures associated with these traits. We applied four intra-population methods to find evidence of selection, such as Tajima's D, CLR, iHS, and ROH. We found a total of 40 genes under the selection signature, that were associated with morphometric traits in five cattle breeds (Kankrej, Tharparkar, Nelore, Sahiwal, and Gir). Crucial genes such as ADIPDQ, DPP6, INSIG1, SLC35D2 in Kankrej, LPL, ATP6V1B2, CDC14B in Tharparkar, HPSE2, PLAG1 in Nelore, PCSK1, PRKD1 in Sahiwal, and GNAQ, HPCAL1 in Gir were identified in our study. This approach provides valuable insights into the genetic basis of variations in body weight and conformation traits, facilitating informed selection processes and offering a deeper understanding of the evolutionary and domestication processes in diverse cattle breeds.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141627048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Maternal genetic diversity and phylogenetic analysis of Indian riverine and swamp buffaloes: insights from complete mitochondrial genomes. 印度河流水牛和沼泽水牛的母体遗传多样性和系统发育分析:完整线粒体基因组的启示。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-06-18 DOI: 10.1007/s00335-024-10048-1
Sonika Ahlawat, Upasna Sharma, Pooja Chhabra, Reena Arora, Rekha Sharma, Karan Veer Singh, R K Vijh
{"title":"Maternal genetic diversity and phylogenetic analysis of Indian riverine and swamp buffaloes: insights from complete mitochondrial genomes.","authors":"Sonika Ahlawat, Upasna Sharma, Pooja Chhabra, Reena Arora, Rekha Sharma, Karan Veer Singh, R K Vijh","doi":"10.1007/s00335-024-10048-1","DOIUrl":"10.1007/s00335-024-10048-1","url":null,"abstract":"<p><p>This study explored the genetic diversity and evolutionary history of riverine and swamp buffaloes in India, utilizing complete mitochondrial genome sequences. Through comprehensive sampling across varied agro-climatic zones, including 91 riverine buffaloes from 12 breeds and 6 non-descript populations, along with 16 swamp buffaloes of the Luit breed, this study employed next-generation sequencing techniques to map the mitogenomic landscape of these subspecies. Sequence alignments were performed with the buffalo mitochondrial reference genome to identify mitochondrial DNA (mtDNA) variations and distinct maternal haplogroups among Indian buffaloes. The results uncovered the existence of 212 variable sites in riverine buffaloes, yielding 67 haplotypes with high haplotype diversity (0.991), and in swamp buffaloes, 194 variable sites resulting in 12 haplotypes, displaying haplotype diversity of 0.950. Phylogenetic analyses elucidated the genetic relationships between Indian buffaloes and the recognized global haplogroups, categorizing Indian swamp buffaloes predominantly into the SA haplogroup. Intriguingly, the haplogroup SB2b was observed for the first time in swamp buffaloes. Conversely, riverine buffaloes conformed to established sub-haplogroups RB1, RB2, and RB3, underscoring the notion of Northwestern India as a pivotal domestication site for riverine buffaloes. The study supports the hypothesis of independent domestication events for riverine and swamp buffaloes, highlighting the critical role of genetic analysis in unraveling the complex evolutionary pathways of domestic animals. This investigation contributes to the global understanding of buffalo mitogenome diversity, offering insights into this important livestock species' domestication and dispersal patterns.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141419784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fine mapping and candidate gene analysis of Dravet syndrome modifier loci on mouse chromosomes 7 and 8. 对小鼠 7 号和 8 号染色体上的德拉韦特综合征修饰基因座进行精细绘图和候选基因分析。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-06-11 DOI: 10.1007/s00335-024-10046-3
Nicole A Hawkins, Nathan Speakes, Jennifer A Kearney
{"title":"Fine mapping and candidate gene analysis of Dravet syndrome modifier loci on mouse chromosomes 7 and 8.","authors":"Nicole A Hawkins, Nathan Speakes, Jennifer A Kearney","doi":"10.1007/s00335-024-10046-3","DOIUrl":"10.1007/s00335-024-10046-3","url":null,"abstract":"<p><p>Dravet syndrome is a developmental and epileptic encephalopathy (DEE) characterized by intractable seizures, comorbidities related to developmental, cognitive, and motor delays, and a high mortality burden due to sudden unexpected death in epilepsy (SUDEP). Most Dravet syndrome cases are attributed to SCN1A haploinsufficiency, with genetic modifiers and environmental factors influencing disease severity. Mouse models with heterozygous deletion of Scn1a recapitulate key features of Dravet syndrome, including seizures and premature mortality; however, severity varies depending on genetic background. Here, we refined two Dravet survival modifier (Dsm) loci, Dsm2 on chromosome 7 and Dsm3 on chromosome 8, using interval-specific congenic (ISC) mapping. Dsm2 was complex and encompassed at least two separate loci, while Dsm3 was refined to a single locus. Candidate modifier genes within these refined loci were prioritized based on brain expression, strain-dependent differences, and biological relevance to seizures or epilepsy. High priority candidate genes for Dsm2 include Nav2, Ptpn5, Ldha, Dbx1, Prmt3 and Slc6a5, while Dsm3 has a single high priority candidate, Psd3. This study underscores the complex genetic architecture underlying Dravet syndrome and provides insights into potential modifier genes that could influence disease severity and serve as novel therapeutic targets.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329421/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141306268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Tachol1 QTL on mouse chromosome 1 is responsible for hypercholesterolemia and diet-induced obesity. 小鼠 1 号染色体上的 Tachol1 QTL 是导致高胆固醇血症和饮食诱发肥胖的原因。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-06-05 DOI: 10.1007/s00335-024-10045-4
Jung Han Kim, Marvin A Simpkins, Nicholas T Williams, Emma Cimino, Jadyn Simon, Tanner R Richmond, Jared Youther, Hannah Slutz, James Denvir
{"title":"Tachol1 QTL on mouse chromosome 1 is responsible for hypercholesterolemia and diet-induced obesity.","authors":"Jung Han Kim, Marvin A Simpkins, Nicholas T Williams, Emma Cimino, Jadyn Simon, Tanner R Richmond, Jared Youther, Hannah Slutz, James Denvir","doi":"10.1007/s00335-024-10045-4","DOIUrl":"10.1007/s00335-024-10045-4","url":null,"abstract":"<p><p>Hypercholesterolemia raises the risk for cardiovascular complications and overall health. Hypercholesterolemia is common, affecting 10% of the general population of the US, and heritable. Most individuals with hypercholesterolemia have a polygenic predisposition to the condition. Previously we identified a quantitative trait locus, Tachol1, linked to hypercholesterolemia on mouse chromosome 1 (Chr1) in a cross between C57BL/6J (B6) and TALLYHO/JngJ (TH) mice, a polygenic model for human obesity, type 2 diabetes and hyperlipidemia. Subsequently, using congenic mice that carry a TH-derived genomic segment of Chr1 on a B6 background, we demonstrated that the distal segment of Chr1, where Tachol1 maps, is necessary to cause hypercholesterolemia, as well as diet-induced obesity. In this study, we generated overlapping subcongenic lines to the distal segment of congenic region and characterized subcongenic mice carrying the smallest TH region of Tachol1, ~ 16.2 Mb in size (B6.TH-Chr1-16.2 Mb). Both male and female B6.TH-Chr1-16.2 Mb mice showed a significantly increased plasma total cholesterol levels compared to B6 on both chow and high fat (HF) diet. B6.TH-Chr1-16.2 Mb mice also had greater fat mass than B6 on HF diet, without increasing food intake. The gene and protein expression levels of absent in melanoma 2 (Aim2) gene were significantly upregulated in B6.TH-Chr1-16.2 Mb mice compared to B6. In summary, we confirmed the effect of Tachol1 on hypercholesterolemia and diet-induced obesity using subcongenic analysis.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11339885/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141248185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Predicting the potential deterioration of Barrett's esophagus based on gut microbiota: a Mendelian randomization analysis. 根据肠道微生物群预测巴雷特食管的潜在恶化:孟德尔随机分析。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-06-17 DOI: 10.1007/s00335-024-10042-7
Conghan Li, Panyin Shu, Taiyu Shi, Yuerong Chen, Ping Mei, Yizhong Zhang, Yan Wang, Xinyan Du, Jianning Wang, Yixin Zhang, Bin Liu, Zhijin Sheng, Shixin Chan, Zhangyong Dan
{"title":"Predicting the potential deterioration of Barrett's esophagus based on gut microbiota: a Mendelian randomization analysis.","authors":"Conghan Li, Panyin Shu, Taiyu Shi, Yuerong Chen, Ping Mei, Yizhong Zhang, Yan Wang, Xinyan Du, Jianning Wang, Yixin Zhang, Bin Liu, Zhijin Sheng, Shixin Chan, Zhangyong Dan","doi":"10.1007/s00335-024-10042-7","DOIUrl":"10.1007/s00335-024-10042-7","url":null,"abstract":"<p><p>Esophageal adenocarcinoma (EAC) is one of the most malignant tumors in the digestive system. To make thing worse, the scarcity of treatment options is disheartening. However, if detected early, there is a possibility of reversing the condition. Unfortunately, there is still a lack of relevant early screening methods. Considering that Barrett's esophagus (BE), a precursor lesion of EAC, has been confirmed as the only known precursor of EAC. Analyzing which BE cases will progress to EAC and understanding the processes and mechanisms involved is of great significance for early screening of such patients. Considering the significant alterations in the gut microbiota of patients with BE and its potential role in the progression to EAC, this study aims to analyze the relationship between BE, EAC, and GM to identify potential diagnostic biomarkers and therapeutic targets. This study utilized comprehensive statistical data on gut microbiota from a large-scale genome-wide association meta-analysis conducted by the MiBioGen consortium (n = 18,340). Subsequently, we selected a set of single nucleotide polymorphisms (SNPs) that fell below the genome-wide significance threshold (1 × 10-5) as instrumental variables. To investigate the causal relationship between gut microbiota and BE and EAC, we employed various MR analysis methods, including Inverse Variance Weighting (IVW), MR-Egger regression, weighted median (WM), and weighted mean. Additionally, we assessed the level of pleiotropy, heterogeneity, and stability of genetic variations through MR-Egger intercept test, MR-PRESSO, Cochran's Q test, and \"leave-one-out\" sensitivity analysis. Furthermore, we conducted reverse MR analysis to identify the causal relationships between gut microbiota and BE and EAC. The results from the Inverse Variance-Weighted (IVW) analysis indicate that Alistipes (P = 4.86 × 10<sup>-2</sup>), Lactobacillus (P = 2.11 × 10<sup>-2</sup>), Prevotella 7 (P = 4.28 × 10<sup>-2</sup>), and RuminococcaceaeUCG004 (P = 4.34 × 10<sup>-2</sup>) are risk factors for Barrett's esophagus (BE), while Flavonifractor (P = 8.81 × 10<sup>-3</sup>) and RuminococcaceaeUCG004 (P = 4.99 × 10<sup>-2</sup>) are risk factors for esophageal adenocarcinoma (EAC). On the other hand, certain gut microbiota genera appear to have a protective effect against both BE and EAC. These include Eubacterium (nodatum group) (P = 4.51 × 10<sup>-2</sup>), Holdemania (P = 1.22 × 10<sup>-2</sup>), and Lactococcus (P = 3.39 × 10<sup>-2</sup>) in the BE cohort, as well as Eubacterium (hallii group) (P = 4.07 × 10<sup>-2</sup>) and Actinomyces (P = 3.62 × 10<sup>-3</sup>) in the EAC cohort. According to the results of reverse MR analysis, no significant causal effects of BE and EAC on gut microbiota were observed. Furthermore, no significant heterogeneity or pleiotropy was detected in the instrumental variables. We have established a causal relationship between the gut microbiota and BE and EAC. This study holds profound si","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141419785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
E3 ubiquitin ligase MARCH1 reduces inflammation and pyroptosis in cerebral ischemia-reperfusion injury via PCSK9 downregulation. E3泛素连接酶MARCH1通过下调PCSK9减少脑缺血再灌注损伤中的炎症和脓毒症。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-08-08 DOI: 10.1007/s00335-024-10055-2
Hongmei Guo, Wanli Li, Zhigang Yang, Xiaobin Xing
{"title":"E3 ubiquitin ligase MARCH1 reduces inflammation and pyroptosis in cerebral ischemia-reperfusion injury via PCSK9 downregulation.","authors":"Hongmei Guo, Wanli Li, Zhigang Yang, Xiaobin Xing","doi":"10.1007/s00335-024-10055-2","DOIUrl":"10.1007/s00335-024-10055-2","url":null,"abstract":"<p><p>Pyroptosis has been regarded as caspase-1-mediated monocyte death that induces inflammation, showing a critical and detrimental role in the development of cerebral ischemia-reperfusion injury (IRI). MARCH1 is an E3 ubiquitin ligase that exerts potential anti-inflammatory functions. Therefore, the study probed into the significance of MARCH1 in inflammation and pyroptosis elicited by cerebral IRI. Middle cerebral artery occlusion/reperfusion (MCAO/R)-treated mice and oxygen glucose deprivation/reoxygenation (OGD/R)-treated hippocampal neurons were established to simulate cerebral IRI in vivo and in vitro. MARCH1 and PCSK9 expression was tested in MCAO/R-operated mice, and their interaction was identified by means of the cycloheximide assay and co-immunoprecipitation. The functional roles of MARCH1 and PCSK9 in cerebral IRI were subsequently determined by examining the neurological function, brain tissue changes, neuronal viability, inflammation, and pyroptosis through ectopic expression and knockdown experiments. PCSK9 expression was increased in the brain tissues of MCAO/R mice, while PCSK9 knockdown reduced brain damage and neurological deficits. Additionally, inflammation and pyroptosis were inhibited in OGD/R-exposed hippocampal neurons upon PCSK9 knockdown, accompanied by LDLR upregulation and NLRP3 inflammasome inactivation. Mechanistic experiments revealed that MARCH1 mediated ubiquitination and degradation of PCSK9, lowering PCSK9 protein expression. Furthermore, it was demonstrated that MARCH1 suppressed inflammation and pyroptosis after cerebral IRI by downregulating PCSK9 both in vivo and in vitro. Taken together, the present study demonstrate the protective effect of MARCH1 against cerebral IRI through PCSK9 downregulation, which might contribute to the discovery of new therapies for improving cerebral IRI.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141902199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fibroblasts as an in vitro model of circadian genetic and genomic studies. 将成纤维细胞作为昼夜节律遗传和基因组研究的体外模型。
IF 2.7 4区 生物学
Mammalian Genome Pub Date : 2024-09-01 Epub Date: 2024-07-03 DOI: 10.1007/s00335-024-10050-7
Marcelo Francia, Merel Bot, Toni Boltz, Juan F De la Hoz, Marco Boks, René S Kahn, Roel A Ophoff
{"title":"Fibroblasts as an in vitro model of circadian genetic and genomic studies.","authors":"Marcelo Francia, Merel Bot, Toni Boltz, Juan F De la Hoz, Marco Boks, René S Kahn, Roel A Ophoff","doi":"10.1007/s00335-024-10050-7","DOIUrl":"10.1007/s00335-024-10050-7","url":null,"abstract":"<p><p>Bipolar disorder (BD) is a heritable disorder characterized by shifts in mood that manifest in manic or depressive episodes. Clinical studies have identified abnormalities of the circadian system in BD patients as a hallmark of underlying pathophysiology. Fibroblasts are a well-established in vitro model for measuring circadian patterns. We set out to examine the underlying genetic architecture of circadian rhythm in fibroblasts, with the goal to assess its contribution to the polygenic nature of BD disease risk. We collected, from primary cell lines of 6 healthy individuals, temporal genomic features over a 48 h period from transcriptomic data (RNA-seq) and open chromatin data (ATAC-seq). The RNA-seq data showed that only a limited number of genes, primarily the known core clock genes such as ARNTL, CRY1, PER3, NR1D2 and TEF display circadian patterns of expression consistently across cell cultures. The ATAC-seq data identified that distinct transcription factor families, like those with the basic helix-loop-helix motif, were associated with regions that were increasing in accessibility over time. Whereas known glucocorticoid receptor target motifs were identified in those regions that were decreasing in accessibility. Further evaluation of these regions using stratified linkage disequilibrium score regression analysis failed to identify a significant presence of them in the known genetic architecture of BD, and other psychiatric disorders or neurobehavioral traits in which the circadian rhythm is affected. In this study, we characterize the biological pathways that are activated in this in vitro circadian model, evaluating the relevance of these processes in the context of the genetic architecture of BD and other disorders, highlighting its limitations and future applications for circadian genomic studies.</p>","PeriodicalId":18259,"journal":{"name":"Mammalian Genome","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329553/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141498399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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