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Selective cerebral hypothermia alleviates focal cerebral ischemia/reperfusion injury via enhancing SUMO2/3 modification of Drp1 in rats 选择性脑低温通过增强Drp1的SUMO2/3修饰减轻大鼠局灶性脑缺血再灌注损伤
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-03-21 DOI: 10.1016/j.biocel.2025.106772
Yang Yuan , Li Fu , Wenji Liu , Rui Dong , Fei Shi , Jinhao Liu , Hong Li , Gaofeng Zhang
{"title":"Selective cerebral hypothermia alleviates focal cerebral ischemia/reperfusion injury via enhancing SUMO2/3 modification of Drp1 in rats","authors":"Yang Yuan ,&nbsp;Li Fu ,&nbsp;Wenji Liu ,&nbsp;Rui Dong ,&nbsp;Fei Shi ,&nbsp;Jinhao Liu ,&nbsp;Hong Li ,&nbsp;Gaofeng Zhang","doi":"10.1016/j.biocel.2025.106772","DOIUrl":"10.1016/j.biocel.2025.106772","url":null,"abstract":"<div><h3>Background</h3><div>Selective Cerebral Hypothermia (SCH) has been demonstrated to potentiate SUMO2/3 modification, a native cellular safeguard against Cerebral Ischemia/Reperfusion Injury (CIRI). Dynamin-Related Protein 1 (Drp1), a pivotal regulator in the mitochondrial fission pathway, is an important substrate for SUMO2/3 modification. However, effects of SCH on SUMO2/3 modification of Drp1 remain undefined. Herein, the current study posits that SCH augments the SUMO2/3 modification of Drp1, thereby preserving mitochondrial integrity and mitigating CIRI.</div></div><div><h3>Methods</h3><div>A focal CIRI model was established in Sprague-Dawley rats, with 20°C saline perfused via the transcarotid artery to induce SCH condition, and 37°C saline serving as a control. The modified Neurological Severity Score (mNSS) was used to quantitate the degree of neurological deficits. Staining of 2,3–5-triphenyltetrazolium chloride (TTC) was performed to detect cerebral infarction volume. Histological change of neurocyte was observed through Hematoxylin-eosin (HE) staining. Neurocyte apoptosis was evaluated using terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) immunofluorescence staining. Western blot (WB) was utilized to evaluated the expressions of Drp1 and Cytochrome C. Co-immunoprecipitation was performed to evaluate the level of SUMO2/3 modification of Drp1. And transmission electron microscopy was used to observe the mitochondrial ultrastructure. The ratio of M-Drp1 to T-Drp1 and mitochondria morphological changes were observed under confocal microscopy.</div></div><div><h3>Results</h3><div>Research data revealed that SCH significantly enhanced the SUMO2/3 modification of Drp1 when CIRI occurred. Concurrently, mNSSs, cerebral infarct volume, and apoptotic rates were notably attenuated in the SCH group, corroborating SCH's protective role. Expression levels of mitochondrial outer membrane Drp1 (M-Drp1), cytoplasmic cytochrome C (C-CytC), and ratio of M-Drp1 to T-Drp1 were reduced, and changes of mitochondrial ultrastructural and morphology were mitigated, underscoring SCH's inhibitory effect on mitochondrial fission. In contrast, 37°C saline displayed negligible protective impact while compare with 20°C saline perfusion.</div></div><div><h3>Conclusions</h3><div>The findings support that SCH amplifies SUMO2/3 modification of Drp1, curtails excessive mitochondrial fission, and consequently ameliorates focal CIRI in a rat model.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"182 ","pages":"Article 106772"},"PeriodicalIF":3.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Regulatory role of TEX10 gene in proliferation differentiation and apoptosis of bovine myoblasts TEX10基因在牛成肌细胞增殖、分化和凋亡中的调控作用。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-03-12 DOI: 10.1016/j.biocel.2025.106771
Yongpan Wang , Zijing Zhang , Yuqiao Zhang , Jiamei Wang , Shijie Lyu , Xian Liu , Xingshan Qi , Weidong Ma , Chuzhao Lei , Eryao Wang , Yongzhen Huang
{"title":"Regulatory role of TEX10 gene in proliferation differentiation and apoptosis of bovine myoblasts","authors":"Yongpan Wang ,&nbsp;Zijing Zhang ,&nbsp;Yuqiao Zhang ,&nbsp;Jiamei Wang ,&nbsp;Shijie Lyu ,&nbsp;Xian Liu ,&nbsp;Xingshan Qi ,&nbsp;Weidong Ma ,&nbsp;Chuzhao Lei ,&nbsp;Eryao Wang ,&nbsp;Yongzhen Huang","doi":"10.1016/j.biocel.2025.106771","DOIUrl":"10.1016/j.biocel.2025.106771","url":null,"abstract":"<div><div>Skeletal muscle is a crucial tissue involved in body movement and energy metabolism, and its growth and development directly influence the economic value of livestock. This study investigates the effects of the <em>TEX10</em> gene on the proliferation, differentiation, and apoptosis of bovine myoblasts, as well as the underlying molecular mechanisms. Using techniques such as CCK-8, EdU incorporation, qPCR, Western blotting, and immunofluorescence, we observed that <em>TEX10</em> significantly promotes the expression of cell cycle factors, including <em>CDK2</em> and <em>PCNA</em>, thereby increasing cell proliferation and the proportion of cells in the S phase. Overexpression and knockdown experiments demonstrated that <em>TEX10</em> enhances the differentiation and myotube formation of myoblasts, while upregulating key genes such as <em>MYOG</em> and <em>MYOD</em>. Additionally, flow cytometry analysis of the cell cycle revealed that <em>TEX10</em> inhibits apoptosis in bovine myoblasts. Transcriptomic analysis showed that <em>TEX10</em> regulates several signaling pathways associated with proliferation, differentiation, and apoptosis, including PI3K-Akt, cAMP, and IL-17. Overall, these findings suggest that <em>TEX10</em> plays a significant regulatory role in bovine muscle growth, providing a theoretical foundation for molecular breeding strategies aimed at improving yellow cattle.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"182 ","pages":"Article 106771"},"PeriodicalIF":3.4,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Identify key genes and biological processes participated in obesity-related cancer based on studying 12 cancers 通过对12种癌症的研究,确定肥胖相关癌症的关键基因和生物学过程。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-27 DOI: 10.1016/j.biocel.2025.106764
Lijuan Zhu , Cuicui Zhao
{"title":"Identify key genes and biological processes participated in obesity-related cancer based on studying 12 cancers","authors":"Lijuan Zhu ,&nbsp;Cuicui Zhao","doi":"10.1016/j.biocel.2025.106764","DOIUrl":"10.1016/j.biocel.2025.106764","url":null,"abstract":"<div><div>Obesity significantly increases the risk of various diseases, particularly cancers, which present a serious threat to public health. Therefore, identifying cancers related to obesity and exploring their pathological pathways and key genes are highly significant for the prevention and treatment of these cancers. In this study, we propose the obesity and cancer edge connectivity based on expanded modular disease genes and expanded modular networks (OCEC_eDMN) algorithm, which based on the disease-related genes, Biological Process (BP) genes, and Protein-Potein Interaction (PPI) network. The algorithm utilizes Random Walk with Restart (RWR) to expand BP genes and disease genes to generate the expanded modular networks (eMNs) and disease genes (eMDs). Finally, this algorithm calculates the average interaction number between eMDs on eMNs. We utilize OCEC_eDMN to predict the ranking of 12 cancers related to obesity/morbid obesity and obtain an AUC of 0.93/0.84. Additionally, OCEC_eDMN reveals the significant BPs associated with obesity-cancer connections. For instance, \"gluconeogenesis\" plays a critical role in the connections between obesity and cancers. Through key driver analysis (KDA) on eMDs, we identify the key connectors in obesity-cancer connections. Genes such as GRB2 are instrumental in linking morbid obesity to colorectal cancer in the eMNs of “response to molecule of bacterial origin”. The significant eMNs and key genes provide valuable references for the prevention and treatment of obesity-related cancers and carry important theoretical implications.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"182 ","pages":"Article 106764"},"PeriodicalIF":3.4,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
SIRT2 inhibition attenuates myofibroblast transition through autophagy-mediated ciliogenesis in renal epithelial cells SIRT2抑制可减弱肾上皮细胞自噬介导的纤毛形成过程中肌成纤维细胞的转变。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-21 DOI: 10.1016/j.biocel.2025.106754
Juyoung Son , Jaejung Park , Joo-Won Jeong , Seung Hyeun Lee , Ja-Eun Kim
{"title":"SIRT2 inhibition attenuates myofibroblast transition through autophagy-mediated ciliogenesis in renal epithelial cells","authors":"Juyoung Son ,&nbsp;Jaejung Park ,&nbsp;Joo-Won Jeong ,&nbsp;Seung Hyeun Lee ,&nbsp;Ja-Eun Kim","doi":"10.1016/j.biocel.2025.106754","DOIUrl":"10.1016/j.biocel.2025.106754","url":null,"abstract":"<div><div>Myofibroblast transition plays a crucial role in both fibrotic diseases and wound healing. Although SIRT2 regulates fibrosis, its mechanisms of action remain poorly understood. This study aimed to investigate the effects of SIRT2 inhibition on myofibroblast transition in human renal cells under quiescent conditions. HK-2 kidney proximal tubular epithelial cells were starved of serum, resulting in the formation of primary cilia. Transforming growth factor-β (TGF-β) stimulation reduced both the number of ciliated cells and ciliary length. The ciliary defects resulted from a failure in autophagy termination, leading to the accumulation of OFD1, a negative regulator of ciliogenesis, at centriolar satellites. This phenomenon was correlated with the upregulation of fibrosis-related proteins. To elucidate the role of SIRT2 in the autophagy−ciliogenesis−fibrosis axis, cells were treated with AGK2, a specific inhibitor of SIRT2. AGK2 treatment promoted the formation of both autophagosomes and autolysosomes and facilitated OFD1 degradation at the centriolar satellites, resulting in the lengthening of primary cilia. Restoration of primary cilia by AGK2 was associated with the suppression of myofibroblast transition. In conclusion, SIRT2 inhibition attenuates TGF-β-induced fibrosis by promoting autophagy-mediated ciliogenesis. This study highlights SIRT2 as a potential therapeutic target for fibrotic diseases.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"181 ","pages":"Article 106754"},"PeriodicalIF":3.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143484267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Enhancement of wound healing in diabetic mice by topical use of a peptide-ionic liquid conjugate 局部使用肽离子液体偶联物促进糖尿病小鼠伤口愈合
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-14 DOI: 10.1016/j.biocel.2025.106753
Ana Gomes , Ermelindo C. Leal , Jessica Da Silva , Inês Teixeira , Ricardo Ferraz , Daniela Calheiros , Teresa Gonçalves , Eugénia Carvalho , Paula Gomes
{"title":"Enhancement of wound healing in diabetic mice by topical use of a peptide-ionic liquid conjugate","authors":"Ana Gomes ,&nbsp;Ermelindo C. Leal ,&nbsp;Jessica Da Silva ,&nbsp;Inês Teixeira ,&nbsp;Ricardo Ferraz ,&nbsp;Daniela Calheiros ,&nbsp;Teresa Gonçalves ,&nbsp;Eugénia Carvalho ,&nbsp;Paula Gomes","doi":"10.1016/j.biocel.2025.106753","DOIUrl":"10.1016/j.biocel.2025.106753","url":null,"abstract":"<div><div>Diabetic foot ulcers (DFU) are one of the most devastating complications of diabetes, with high impact on patient’s quality of life. In worst scenarios, DFU can lead to severe amputation or even death. DFUs are an easy target for microbial pathogens and their effective healing is hampered by the galloping increase of microbial resistance to antibiotics, including from the most prevalent pathogens in DFU, <em>e.g. Staphylococcus aureus</em>. As such, available antibiotics show poor efficacy in the treatment of DFU, leading to a chronic condition that is exacerbated by poor healing rates due to the persistent inflammation, poor oxygenation and low angiogenesis, leading to high risk of ischemia, among other conditions that typically affect patients with diabetes. Our group has recently designed new peptide-based strategies towards the topical treatment of DFU, whereby peptide-ionic liquid conjugates emerged as highly promising agents. One of the best such conjugates, C<sub>16</sub>-Im-PP4, results from coupling an imidazolium-based ionic liquid with intrinsic antimicrobial activity to the <em>N</em>-terminus of a collagen boosting peptide used in cosmetics, the pentapeptide-4. C<sub>16</sub>-Im-PP4 showed excellent <em>in vitro</em> properties, namely, wide-spectrum antimicrobial action and collagen-boosting effect on human dermal fibroblasts, prompting the <em>in vivo</em> study here reported. The peptide-ionic liquid conjugate was applied topically on wounds of mice with diabetes. The results show multitargeted actions, at a dose of 1 µg/wound including: i) anti-inflammatory; ii) antioxidant; iii) pro-collagenic; vi) pro-angiogenic; v) antimicrobial; and vi) improved wound maturation effects. Altogether, these results identify this technology as a novel topical treatment for DFU.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"180 ","pages":"Article 106753"},"PeriodicalIF":3.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Expression analysis of molecular chaperones associated with disaggregation complex in rotenone-induced Parkinsonian rat model 鱼藤酮诱导的帕金森大鼠模型中解聚复合物相关分子伴侣的表达分析。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-12 DOI: 10.1016/j.biocel.2025.106752
Tanu , Minal Chaturvedi , Siraj Fatima , Smriti Singh Yadav , Prabeen Kumar Padhy , Saurabh Tiwari , Kavita Seth , Rajnish K. Chaturvedi , Smriti Priya
{"title":"Expression analysis of molecular chaperones associated with disaggregation complex in rotenone-induced Parkinsonian rat model","authors":"Tanu ,&nbsp;Minal Chaturvedi ,&nbsp;Siraj Fatima ,&nbsp;Smriti Singh Yadav ,&nbsp;Prabeen Kumar Padhy ,&nbsp;Saurabh Tiwari ,&nbsp;Kavita Seth ,&nbsp;Rajnish K. Chaturvedi ,&nbsp;Smriti Priya","doi":"10.1016/j.biocel.2025.106752","DOIUrl":"10.1016/j.biocel.2025.106752","url":null,"abstract":"<div><div>Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by the aberrant aggregation and phosphorylation (ser129) of α-synuclein (α-syn, a presynaptic protein) which leads to the formation of pathogenic Lewy bodies. A critical factor in the pathogenesis of PD is the disruption of the cellular protein quality control system, where molecular chaperones and their co-chaperones are integral for mitigating proteotoxic stress. Although the role of molecular chaperones in PD and other protein aggregation diseases has been extensively investigated, the in vivo investigation of disaggregation chaperones, including HSP70, HSP105, and co-chaperone DNAJBs, remains relatively limited. The present study aims to elucidate the expression dynamics of the disaggregation molecular chaperones within the substantia nigra pars compacta of the rotenone-induced Parkinsonian rat model and its association with α-syn aggregation. The rotenone-treated rats exhibited significant behavioural symptoms, α-syn aggregation and degeneration of dopaminergic neurons, confirming the development of Parkinsonism. Significant upregulation of α-syn expression/phosphorylation and co-localization in TH+ve neurons in the SNpc of treated rats was observed. Further, the gene and protein analysis of HSP70, DNAJB6, and HSP105 were found to be upregulated and TH+ve neurons showed their co-localization with p-α-syn<sup>ser129</sup> expression. The total proteomic analysis of SNpc correlated the altered cellular processes with cellular homeostasis imbalance. The observations of the present study provide an in vivo analysis of disaggregation-associated molecular chaperones in Parkinsonian or α-syn related conditions. The study can be helpful for further manipulation in the expression or activity of disaggregation-related chaperones for advanced therapeutic strategies and mechanistic studies in protein aggregation-associated diseases.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"181 ","pages":"Article 106752"},"PeriodicalIF":3.4,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143426554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Identification of a liver fibrosis and disease progression-related transcriptome signature in non-alcoholic fatty liver disease 非酒精性脂肪肝中肝纤维化和疾病进展相关转录组特征的鉴定
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-03 DOI: 10.1016/j.biocel.2025.106751
Li-Xin Pan , Wei Tian , Zhi-Hao Huang , Jian-Rong Li , Jia-Yong Su , Qiu-Yan Wang , Xiao-Hui Fan , Jian-Hong Zhong
{"title":"Identification of a liver fibrosis and disease progression-related transcriptome signature in non-alcoholic fatty liver disease","authors":"Li-Xin Pan ,&nbsp;Wei Tian ,&nbsp;Zhi-Hao Huang ,&nbsp;Jian-Rong Li ,&nbsp;Jia-Yong Su ,&nbsp;Qiu-Yan Wang ,&nbsp;Xiao-Hui Fan ,&nbsp;Jian-Hong Zhong","doi":"10.1016/j.biocel.2025.106751","DOIUrl":"10.1016/j.biocel.2025.106751","url":null,"abstract":"<div><div>Non-alcoholic fatty liver disease (NAFLD)-related liver fibrosis is closely associated with long-term outcomes of patients. This study aimed to establish a transcriptome signature to distinguish NAFLD patients with mild or advanced fibrosis and to monitor disease progression. Using least absolute shrinkage selection operator regression, we identified a signature of 11 hub genes by performing differential gene expression analysis in six bulk transcriptome profiles in the Gene Expression Omnibus database from liver fibrosis patients with different etiologies. Patients with NAFLD were classified using the 11-hub gene signature. Integrated analysis of signaling pathway enrichment, gene set enrichment, nearest template prediction, infiltration by hepatic stellate cells (HSCs) and pseudotime trajectories was performed on three bulk and one single-cell transcriptomes from NAFLD patients. Molecular features were compared between high-risk and low-risk groups, and associations were explored between hub gene signature expression and activation of HSCs. It was found that the high-risk group was characterized by advanced fibrosis stage, elevated risk for hepatocellular carcinoma, more significant infiltration by activated HSCs, as well as enrichment in signaling pathways related to fibrogenesis and NAFLD progression. Moreover, the 11-hub gene signature at the single-cell transcriptome level correlated with HSCs activation. <em>In vitro</em> experiments were conducted to evaluate the expression levels of hub genes, and <em>IL6</em> was found to be up-regulated in activated LX-2 cells showing lipid accumulation. Our findings suggest that the 11-hub gene signature can help identify fibrosis stage in patients with NAFLD and detect disease progression. We also suggest that the role of <em>IL6</em> in HSC activation deserves more investigation in the context of NAFLD.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"180 ","pages":"Article 106751"},"PeriodicalIF":3.4,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
5'tiRNA-33-CysACA-1 promotes septic cardiomyopathy by targeting PGC-1α-mediated mitochondrial biogenesis 5'tiRNA-33-CysACA-1通过靶向pgc -1α介导的线粒体生物发生促进脓毒性心肌病。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-01 DOI: 10.1016/j.biocel.2024.106714
Ludong Yuan , Jing Li , Leijing Yin , Xiaofang Lin , Dan Ni , Chuanhuan Deng , Pengfei Liang , Bimei Jiang
{"title":"5'tiRNA-33-CysACA-1 promotes septic cardiomyopathy by targeting PGC-1α-mediated mitochondrial biogenesis","authors":"Ludong Yuan ,&nbsp;Jing Li ,&nbsp;Leijing Yin ,&nbsp;Xiaofang Lin ,&nbsp;Dan Ni ,&nbsp;Chuanhuan Deng ,&nbsp;Pengfei Liang ,&nbsp;Bimei Jiang","doi":"10.1016/j.biocel.2024.106714","DOIUrl":"10.1016/j.biocel.2024.106714","url":null,"abstract":"<div><h3>Background</h3><div>We revealed for the first time that the expression of 158 tRNA-derived small RNAs (tsRNAs) was altered in septic cardiomyopathy (SCM) by microarray analysis, and we selected 5'tiRNA-33-CysACA-1, which was the most significantly up-regulated, as a representative to explore the roles and mechanisms of tsRNAs in SCM.</div></div><div><h3>Methods</h3><div>We constructed a sepsis model by cecum ligation and puncture (CLP) in mice and detected the expression of 5'tiRNA-33-CysACA-1 using quantitative real-time PCR (qRT-PCR). The supernatant generated after LPS stimulation of macrophages was used as the conditional medium (CM) to stimulate H9C2 and established the injured cell model. CCK-8 and LDH release assays were used to detect cell viability and cell death. Mitochondrial membrane potential (MMP), ATP production, ROS production, and Mitotracker Red mitochondrial morphology were assayed to assess mitochondrial function. Expression of mRNA for molecules related to the mitochondrial quality control system was verified by qRT-PCR. The mechanism by which 5'tiRNA-33-CysACA-1 regulates peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) expression was examined by western blot, mRNA stability analysis, and rescue experiments.</div></div><div><h3>Results</h3><div>Expression of 5'tiRNA-33-CysACA-1 was elevated in cardiac tissue and H9C2 cells during septic myocardial injury. Stimulation of the CM resulted in cardiomyocyte injury and impaired mitochondrial function. Transfection of 5'tiRNA-33-CysACA-1 mimic in CM further downregulated PGC-1α expression, inhibited mitochondrial biogenesis thereby impairing mitochondrial function and leading to decreased cardiomyocyte activity and increased cell death. In contrast, transfection of the inhibitor ameliorated the above biological processes. In addition, mRNA stability assay and bioinformatics analysis showed that 5'tiRNA-33-CysACA-1 led to a decrease in the stability of PGC-1α mRNA, which in turn downregulated the expression of PGC-1α and promoted the development of SCM.</div></div><div><h3>Conclusions</h3><div>5'tiRNA-33-CysACA-1 expression is upregulated in SCM and inhibits mitochondrial biogenesis by targeting PGC-1α and decreasing the stability of PGC-1α mRNA, leading to mitochondrial dysfunction and promoting the development of SCM.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"179 ","pages":"Article 106714"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Multi-omics analysis of transcriptome and proteome reveals that BAZ1A and BAZ2A have common and individual regulatory roles in hepatocellular carcinoma 转录组学和蛋白质组学的多组学分析表明,BAZ1A和BAZ2A在肝细胞癌中具有共同和单独的调节作用
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-01 DOI: 10.1016/j.biocel.2024.106730
Yan Liu , Fenglin Dong , Shuqing Wang , Jinghua Wu , Liming Zhou , Wei Fang
{"title":"Multi-omics analysis of transcriptome and proteome reveals that BAZ1A and BAZ2A have common and individual regulatory roles in hepatocellular carcinoma","authors":"Yan Liu ,&nbsp;Fenglin Dong ,&nbsp;Shuqing Wang ,&nbsp;Jinghua Wu ,&nbsp;Liming Zhou ,&nbsp;Wei Fang","doi":"10.1016/j.biocel.2024.106730","DOIUrl":"10.1016/j.biocel.2024.106730","url":null,"abstract":"<div><div>This study employs an integrative multi-omics approach to elucidate the complex regulatory roles of BAZ1A and BAZ2A, subunits of the ISWI chromatin remodeling complexes, in hepatocellular carcinoma (HCC). Utilizing siRNA-mediated knockdown, combined with high-throughput RNA sequencing and mass spectrometry, the researchers reveal distinct and overlapping functions of BAZ1A and BAZ2A in both transcriptional and proteomic regulation. The findings indicate that BAZ1A is primarily involved in ribosomal biogenesis and nucleolar function, while BAZ2A exerts significant influence on cell cycle progression and DNA repair mechanisms. Through a comprehensive analysis of the transcriptome and proteome following gene knockdown, the study highlights the intricate interplay between these two subunits, which contributes to the pathogenesis of HCC. This integrated approach not only uncovers their differential impact on gene expression and protein abundance but also reveals their involvement in alternative splicing events. Additionally, potential downstream targets and associated signaling pathways are identified, providing valuable insights into the molecular mechanisms underlying HCC development. The distinct roles of BAZ1A and BAZ2A in various cellular processes, along with their differential effects on gene and protein regulation, position them as promising therapeutic targets. These results offer new perspectives for understanding the molecular basis of HCC and suggest potential avenues for targeted therapies.</div></div>","PeriodicalId":50335,"journal":{"name":"International Journal of Biochemistry & Cell Biology","volume":"179 ","pages":"Article 106730"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Corrigendum to “Dimerization of ZIP promotes its transcriptional repressive function and biological activity” [Int. J. Biochem. Cell Biol. 44 (2012) 886–895] “ZIP的二聚化促进其转录抑制功能和生物活性”的更正[Int.]学生物化学j。中国生物医学工程学报,2014(5):387 - 398。
IF 3.4 3区 生物学
International Journal of Biochemistry & Cell Biology Pub Date : 2025-02-01 DOI: 10.1016/j.biocel.2024.106715
Bin Gui , Xiao Han , Yu Zhang , Jing Liang , Dandan Wang , Chenghao Xuan , Zhipeng Yu , Yongfeng Shang
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