Biochemical and biophysical research communications最新文献

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HIF-1α stabilization inhibits Japanese encephalitis virus propagation and neurotoxicity via autophagy pathways 通过自噬途径稳定 HIF-1α 可抑制日本脑炎病毒的传播和神经毒性。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-19 DOI: 10.1016/j.bbrc.2024.150853
Ji-Hong Moon, Ali Newaz Munna, Jeong-Min Hong, Jae-Won Seol, Sang-Youel Park
{"title":"HIF-1α stabilization inhibits Japanese encephalitis virus propagation and neurotoxicity via autophagy pathways","authors":"Ji-Hong Moon,&nbsp;Ali Newaz Munna,&nbsp;Jeong-Min Hong,&nbsp;Jae-Won Seol,&nbsp;Sang-Youel Park","doi":"10.1016/j.bbrc.2024.150853","DOIUrl":"10.1016/j.bbrc.2024.150853","url":null,"abstract":"<div><div>Japanese encephalitis (JE) is a widespread flavivirus that induces brain inflammation and affects the central nervous system (CNS). Deferoxamine, an iron chelator, has shown promising results in stabilizing HIF-1α, a protein that improves hypoxic conditions, offers protective effects against neurological, and neurodegenerative diseases. This study aimed to assess the impact of HIF-1α stabilization during JEV infection using SH-SY5Y neuroblastoma cell lines as a model. Our findings demonstrated that deferoxamine treatment increased HIF-1α protein levels, leading to a reduction in JEV propagation. Moreover, RT-PCR analysis revealed that deferoxamine ameliorated JEV-induced neuroinflammation and neurotoxicity. We proved that inducing HIF-1α is essential for having an impact of deferoxamine against JEV-mediated neurotoxicity. Thus, our findings offer a potential therapeutic approach to mitigate the detrimental effects of JEV infection on neuronal cells. Further investigations also demonstrated that deferoxamine could reverse JEV-induced autophagy inhibition by stabilizing HIF-1α, which plays a crucial role in mitigating neuronal cell damage and neuroinflammation. Based on our data, HIF-1α stabilization emerges as a vital factor against JEV infection in the neurons, highlighting deferoxamine as a promising and innovative target for developing anti-JEV agents.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493902","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
Meta-Analytic Operation of Threshold-independent Filtering (MOTiF) reveals sub-threshold genomic robustness in trisomy: The Jörmungandr Effect 阈值无关过滤的元分析操作(MOTiF)揭示了三体综合征的亚阈值基因组稳健性:约曼根德尔效应
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150802
Roy Siegelmann , Hava T. Siegelmann
{"title":"Meta-Analytic Operation of Threshold-independent Filtering (MOTiF) reveals sub-threshold genomic robustness in trisomy: The Jörmungandr Effect","authors":"Roy Siegelmann ,&nbsp;Hava T. Siegelmann","doi":"10.1016/j.bbrc.2024.150802","DOIUrl":"10.1016/j.bbrc.2024.150802","url":null,"abstract":"<div><div>Trisomy, a form of aneuploidy wherein the cell possesses an additional copy of a specific chromosome, exhibits a high correlation with cancer. Studies from across different hosts, cell-lines, and labs into the cellular effects induced by aneuploidy have conflicted, ranging from small, chaotic global changes to large instances of either overexpression or underexpression throughout the trisomic chromosome. We ascertained that conflicting findings may be correct but miss the overarching ground truth due to injudicious use of thresholds. To correct this deficiency, we introduce the Meta-analytic Operation of Threshold-independent Filtering (MOTiF) method, which begins by providing a panoramic view of all thresholds, transforms the data to eliminate the effects accounted for by known mechanisms, and then reconstructs an explanation of the mechanisms that underly the difference between the baseline and the uncharacterized effects observed. As a proof of concept, we applied MOTiF to human colonic epithelial cells, discovering a uniform decrease in gene expression levels throughout the genome, which while significant, is beneath most common thresholds. Using Hi-C data we identified the structural correlate, wherein the physical genomic architecture condenses, compactifying in a uniform, genome-wide manner. This effect, which we dub the Jörmungandr Effect, is likely a robustness mechanism counteracting the addition of a chromosome. We were able to break down the gene expression alterations into three overlapping mechanisms: the raw chromosome content, the genomic compartmentalization, and the global structural condensation. While further studies must be conducted to corroborate the hypothesized Jörmungandr Effect, MOTiF presents a useful meta-analytic tool in the realm of gene expression and beyond.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578148","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
MATE transporter OsMATE2 mediates root growth, grain size and weight by interacting with Mn-SOD and PABP in rice MATE转运体OsMATE2通过与水稻中的Mn-SOD和PABP相互作用,介导根的生长、粒度和重量。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150821
Xiao Yan-jia , Yu Si-si , Zheng Yan-mei , Wang Xin-yue , Zeng Xiao-yu , Deng Lan-lan , Li Han-ren , Zhu Yong-sheng , Cai Qiu-hua , Xie Hua-an , Zhang Jian-fu
{"title":"MATE transporter OsMATE2 mediates root growth, grain size and weight by interacting with Mn-SOD and PABP in rice","authors":"Xiao Yan-jia ,&nbsp;Yu Si-si ,&nbsp;Zheng Yan-mei ,&nbsp;Wang Xin-yue ,&nbsp;Zeng Xiao-yu ,&nbsp;Deng Lan-lan ,&nbsp;Li Han-ren ,&nbsp;Zhu Yong-sheng ,&nbsp;Cai Qiu-hua ,&nbsp;Xie Hua-an ,&nbsp;Zhang Jian-fu","doi":"10.1016/j.bbrc.2024.150821","DOIUrl":"10.1016/j.bbrc.2024.150821","url":null,"abstract":"<div><div>Multidrug and toxic compound extrusion proteins (MATE) can transport small organic molecules in and out of cells and participate in detoxification, nutrient absorption, disease resistance and plant development processes. These compounds are widely distributed in plants. However, the mechanism by which MATE affects grain development <em>remains elusive.</em> In this study, we studied a MATE transporter, OsMATE2, which localized on the membrane. The CRISPR-Cas9 (CR) knockout line of OsMATE2 presented obvious decreases in grain weight. In addition, root development was also affected. Two proteins that interact with OsMATE2, namely, manganese-superoxide dismutase (Mn-SOD) and poly(A)-binding protein (PABP), were identified from a screening of yeast library. The results were validated through yeast two-hybrid and bimolecular fluorescence complementation experiments. The CRISPR-Cas9 (CR) knockout lines of Mn-SOD and PABP presented increased grain size and weight. Our findings demonstrated that OsMATE2 interacts with Mn-SOD and PABP to regulate grain development in rice.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493909","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
Integrated mRNA-seq and miRNA-seq analysis reveals key transcription factors of HNF4α and KLF4 in ADPKD mRNA-seq和miRNA-seq综合分析揭示了HNF4α和KLF4在ADPKD中的关键转录因子。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150848
Linxi Huang , Jiaxin Chen , Lili Fu , Bo Yang , Chenchen Zhou , Shuqin Mei , Liming Zhang , Zhiguo Mao , Chunlai Lu , Cheng Xue
{"title":"Integrated mRNA-seq and miRNA-seq analysis reveals key transcription factors of HNF4α and KLF4 in ADPKD","authors":"Linxi Huang ,&nbsp;Jiaxin Chen ,&nbsp;Lili Fu ,&nbsp;Bo Yang ,&nbsp;Chenchen Zhou ,&nbsp;Shuqin Mei ,&nbsp;Liming Zhang ,&nbsp;Zhiguo Mao ,&nbsp;Chunlai Lu ,&nbsp;Cheng Xue","doi":"10.1016/j.bbrc.2024.150848","DOIUrl":"10.1016/j.bbrc.2024.150848","url":null,"abstract":"<div><div>Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the most prevalent genetic disorder affecting the kidneys. Understanding epigenetic regulatory mechanisms and the role of microRNAs (miRNAs) is crucial for developing therapeutic interventions. Two mRNA datasets (GSE7869 and GSE35831) and miRNA expression data (GSE133530) from ADPKD patients were used to find differentially expressed genes (DEGs) and differentially expressed miRNAs (DEMs), with a focus on genes regulated by hub transcription factors (TFs) and their target genes. The expression of hub TFs was validated in human kidneys and animal models through Western Blot (WB) and RT-PCR analysis. The location of the hub TF proteins in kidney cells was observed by a laser confocal microscope. A total of 2037 DEGs were identified. DEM analysis resulted in 59 up-regulated and 107 down-regulated miRNAs. Predicted target DEGs of DEMs indicated two top dysregulated TFs: hepatocyte nuclear factor 4 alpha (HNF4α) and Kruppel-like factor 4 (KLF4). RT-PCR, WB, and immunochemistry results showed that mRNA and protein levels of HNF4α were significantly decreased while KLF4 levels were significantly up-regulated in human ADPKD kidneys and Pkd1 conditional knockout mice compared with normal controls. Laser confocal microscopy revealed that KLF4 was mainly located in the cytoplasm while HNF4α was in the nucleus. Functional enrichment analysis indicated that genes regulated by HNF4α were mainly associated with metabolic pathways, while KLF4-regulated genes were linked to kidney development. Drug response prediction analysis revealed potential drug candidates for ADPKD treatment, including BI-2536, Sepantronium, and AZD5582. This integrated analysis provides new epigenetic insights into the complex miRNA-TF-mRNA network in ADPKD and identifies HNF4α and KLF4 as key TFs. These findings offer valuable resources for further research and potential drug development for ADPKD.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457013","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
The stability of the Opi1p repressor for phospholipid biosynthetic gene expression in Saccharomyces cerevisiae is dependent on its interactions with Scs2p and Ino2p 在酿酒酵母中,Opi1p抑制磷脂生物合成基因表达的稳定性取决于它与Scs2p和Ino2p的相互作用。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150849
Ayaka Oshima , Ayu Joho , Masako Kuwahara , Satoshi Kagiwada
{"title":"The stability of the Opi1p repressor for phospholipid biosynthetic gene expression in Saccharomyces cerevisiae is dependent on its interactions with Scs2p and Ino2p","authors":"Ayaka Oshima ,&nbsp;Ayu Joho ,&nbsp;Masako Kuwahara ,&nbsp;Satoshi Kagiwada","doi":"10.1016/j.bbrc.2024.150849","DOIUrl":"10.1016/j.bbrc.2024.150849","url":null,"abstract":"<div><div>The yeast <em>Saccharomyces cerevisiae</em> Opi1p negatively regulates phospholipid biosynthetic genes. Under derepressing conditions, Opi1p binds to the endoplasmic reticulum/nuclear membrane with the aid of the membrane protein Scs2p and phosphatidic acids under derepressing conditions. Under repressing conditions, it enters the nucleus to inhibit the positive transcription factors Ino2p and Ino4p. While the spatial regulation of Opi1p is understood, the regulation of its abundance remains unclear. We investigated the role of Scs2p and Ino2p in Opi1p stability by overexpressing these proteins in yeast cells. Opi1p was stable in the presence of Scs2p, but mutations in residues required for interaction with Scs2p caused Opi1p unstable. Even in the absence of Scs2p, Opi1p remained stable in the strain having a mutation to increase phosphatidic acid levels. Conversely, overproduction of Ino2p reduced Opi1p stability, whereas a mutant Ino2p that cannot interact with Opi1p did not. Additionally, Opi1p was stable in strains lacking Ino2p or with a mutated Ino2p-binding domain. These findings suggest that regulation, adding another layer to the regulation of phospholipid biosynthetic gene expression by Opi1p.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457019","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
Integrated global proteomic and phosphoproteomic analysis of cisplatin-induced apoptosis in A549 cells 对顺铂诱导的 A549 细胞凋亡进行全局蛋白质组学和磷酸蛋白质组学综合分析。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150846
Luyu Qi , Jun Zhu , Zhongyi Cheng , Zhiyi Yuan , Wulin Qi , JiaHuan Wu , Yifeng Qin , Jingbo Yang , Tao Luo , Minkun Wang , Yejing Weng , Jianzhong Shao
{"title":"Integrated global proteomic and phosphoproteomic analysis of cisplatin-induced apoptosis in A549 cells","authors":"Luyu Qi ,&nbsp;Jun Zhu ,&nbsp;Zhongyi Cheng ,&nbsp;Zhiyi Yuan ,&nbsp;Wulin Qi ,&nbsp;JiaHuan Wu ,&nbsp;Yifeng Qin ,&nbsp;Jingbo Yang ,&nbsp;Tao Luo ,&nbsp;Minkun Wang ,&nbsp;Yejing Weng ,&nbsp;Jianzhong Shao","doi":"10.1016/j.bbrc.2024.150846","DOIUrl":"10.1016/j.bbrc.2024.150846","url":null,"abstract":"<div><div>Protein phosphorylation, a widely occurring and significant post-translational modification, is integral to various biological processes. We previously utilized a protein affinity probe to identify genes damaged by cisplatin, revealing that it inflicts substantial damage on protein kinase and protein phosphatase genes. In this study, we investigated cisplatin-induced alterations in the global proteome and phosphoproteome of A549 cells. Employing Fe-IMAC beads and tyrosine phosphorylation enrichment antibodies, we identified 6944 protein groups and 18,274 phosphorylation sites on 4915 proteins across three biological replicates of both cisplatin-treated A549 cells and control cells. Among these, 730 tyrosine phosphorylation sites were identified—marking the most substantial discovery of such sites in A549 cells following cisplatin treatment. Bioinformatics analysis indicated that the proteins exhibiting significant phosphorylation level changes predominantly involved in RNA processing, modification, transcription, translation, and the spliceosome. This suggests that cisplatin-induced damage to protein kinases and phosphatases may disrupt the normal function of these proteins, consequently impairing DNA replication, RNA translation, and shearing, ultimately culminating in tumor cell death. Moreover, we cross-referenced our proteomic data with our previously obtained cisplatin-damaged genes, observing that the majority of down-regulated proteins derived from cisplatin-induced gene damage. The data are available on ProteomeXchange under the identifier PXD053902.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457012","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
In vitro effects of l-kynurenine and quinolinic acid on adhesion, migration and apoptosis in B16 F10 melanoma cells l-kynurenine 和喹啉酸对 B16 F10 黑色素瘤细胞粘附、迁移和凋亡的体外影响。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150851
Charlise Basson , June Cheptoo Serem , Priyesh Bipath , Yvette Nkondo Hlophe
{"title":"In vitro effects of l-kynurenine and quinolinic acid on adhesion, migration and apoptosis in B16 F10 melanoma cells","authors":"Charlise Basson ,&nbsp;June Cheptoo Serem ,&nbsp;Priyesh Bipath ,&nbsp;Yvette Nkondo Hlophe","doi":"10.1016/j.bbrc.2024.150851","DOIUrl":"10.1016/j.bbrc.2024.150851","url":null,"abstract":"<div><h3>Introduction</h3><div>The inhibition of melanoma adhesion through adhesion molecules, such as integrins and E-cadherin, may represent a promising strategy for managing melanoma metastasis. Compounds, namely <span>l</span>-kynurenine (L-kyn) and quinolinic acid (Quin), previously displayed anti-cancer effects at half-maximal inhibitory concentration (IC<sub>50</sub>) against B16 F10 melanoma cells <em>in vitro</em>. However, the role of these compounds in B16 F10 melanoma cell adhesion, migration and apoptosis remain unknown.</div></div><div><h3>Methods</h3><div>Post-exposure to the compounds, flow cytometry was used to analyse the expression of very late antigen-5 (VLA-5), E-cadherin and cleaved caspase-3 in B16 F10 melanoma and RAW 264.7 murine macrophage cells. An adhesion assay was used to quantify the adhesion of both cell lines to vitronectin. A scratch migration assay was used to measure the possible inhibition of cell migration in B16 F10 cells in response to L-kyn and Quin.</div></div><div><h3>Results</h3><div>In both B16 F10 and RAW 264.7 cells, neither L-kyn nor Quin induced significant effects on VLA-5 expression or cell adhesion to vitronectin. In B16 F10 cells, both L-kyn and Quin elevated E-cadherin expression and displayed a trend of suppressed migration. However, only L-kyn elevated E-cadherin in RAW 264.7 cells. L-kyn induced apoptosis by elevating cleaved caspase-3 expression in both cell lines.</div></div><div><h3>Conclusion</h3><div>L-kyn and Quin demonstrated promising antimetastatic effects in their ability to elevate E-cadherin expression and induce apoptosis in B16 F10 melanoma cells. However, these effects did not occur in response to vitronectin or VLA-5 integrin alterations. Furthermore, it cannot be excluded that L-kyn also induced apoptosis in RAW 264.7 cells. As such, these effects should be confirmed in additional control cell lines and substantiated with <em>in vivo</em> models.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493907","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
Crystal structure of the GDP-bound GTPase Era from Staphylococcus aureus 金黄色葡萄球菌 GDP 结合型 GTPase Era 的晶体结构。
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150852
Evelina Klochkova , Artem Biktimirov , Daut Islamov , Anatolii Belousov , Shamil Validov , Marat Yusupov , Konstantin Usachev
{"title":"Crystal structure of the GDP-bound GTPase Era from Staphylococcus aureus","authors":"Evelina Klochkova ,&nbsp;Artem Biktimirov ,&nbsp;Daut Islamov ,&nbsp;Anatolii Belousov ,&nbsp;Shamil Validov ,&nbsp;Marat Yusupov ,&nbsp;Konstantin Usachev","doi":"10.1016/j.bbrc.2024.150852","DOIUrl":"10.1016/j.bbrc.2024.150852","url":null,"abstract":"<div><div>GTPase Era from <em>Staphylococcus aureus</em> belongs to the TRAFAC superfamily of the TrmE-Era-EngA-EngB-Septin-like GTPases class and plays a significant role in the vital activity of this pathogenic microorganism as a maturation factor of the 30S ribosome subunit. However, the functions of this protein are not fully understood, making it a promising object for further study. Here, the 2.76 Å resolution crystal structure of <em>Staphylococcus aureus</em> Era in complex with GDP is presented. Structural comparison with other GTP-bound and GDP-bound homologous proteins, GTPase domain and the KH domain revealed a mutual orientation in <em>S. aureus</em> which has not been described before. The GDP-bound Era structure presented here will facilitate efforts to elucidate its interactions with its regulators and lay the foundation for a structure-based search for specific inhibitors.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456998","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
A novel mutation in HNF1B promotes ferroptosis-mediated renal mesangial cells fibrosis HNF1B的新型突变促进了铁蛋白沉积介导的肾间质细胞纤维化
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-18 DOI: 10.1016/j.bbrc.2024.150803
Xin Chen , Chuanhui Yang , Qianying Wei , Mei Huang , Aiping Wang , Mei Zhang
{"title":"A novel mutation in HNF1B promotes ferroptosis-mediated renal mesangial cells fibrosis","authors":"Xin Chen ,&nbsp;Chuanhui Yang ,&nbsp;Qianying Wei ,&nbsp;Mei Huang ,&nbsp;Aiping Wang ,&nbsp;Mei Zhang","doi":"10.1016/j.bbrc.2024.150803","DOIUrl":"10.1016/j.bbrc.2024.150803","url":null,"abstract":"<div><div>Maturity onset diabetes of the young type 5(MODY5) is typically attributed to mutations in the HNF1B gene, which encodes transcription factors that play a significant role in kidney development and function maintenance. In this study, we identified a novel HNF1B gene mutation (c.445C &gt; A) in a young male MODY5 patient exhibiting elevated serum creatinine levels and albuminuria. Through transfection of wild type and mutant HNF1B plasmids into mouse mesangial cells (MMCs), we investigated the impact on molecular indicators related to proliferation, fibrosis and oxidative stress. The results revealed that the HNF1B novel mutation promoted the expression of fibronectin, type 1 collagen, and CyclinD1, as well as increasing cellular oxidative stress and susceptibility to ferroptosis in MMCs. Our findings established a novel association between HNF1B mutant diseases and mesangial cell proliferation and fibrosis, suggesting that mutations of HNF1B may contribute to the progression of renal function in MODY5 patients. Additionally, our results implicate potential therapeutic targets for restraining fibrosis.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534318","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
Distinct effects of physical and functional ablation of brown adipose tissue on T3-dependent pathological cardiac remodeling 棕色脂肪组织的物理性和功能性消融对 T3 依赖性病理性心脏重塑的不同影响
IF 2.5 3区 生物学
Biochemical and biophysical research communications Pub Date : 2024-10-17 DOI: 10.1016/j.bbrc.2024.150844
Ping Jiang , Banghong Cheng , Zhichao Wang , Zeqi Zheng , Qiong Duan
{"title":"Distinct effects of physical and functional ablation of brown adipose tissue on T3-dependent pathological cardiac remodeling","authors":"Ping Jiang ,&nbsp;Banghong Cheng ,&nbsp;Zhichao Wang ,&nbsp;Zeqi Zheng ,&nbsp;Qiong Duan","doi":"10.1016/j.bbrc.2024.150844","DOIUrl":"10.1016/j.bbrc.2024.150844","url":null,"abstract":"<div><div>Heart failure tends to deteriorate in colder climates, heightening the risk of major adverse cardiovascular events. Brown adipose tissue (BAT) serves as both a thermogenic organ and an atypical site for triiodothyronine (T3) synthesis in response to cold. This study investigates the potential role of BAT in contributing to abdominal aortic constriction (AAC)-induced pathological cardiac remodeling during cold exposure. In this study, we developed a mouse model of pathological cardiac remodeling using AAC. Physical excision of interscapular BAT (iBATx) was performed during cold exposure, and T3 synthesis levels were measured. Additionally, the impact of uncoupling protein 1 (UCP1) knockout on thermogenic function and pathological cardiac remodeling was investigated. <em>In vitro</em> studies were conducted to assess the effect of T3 on cardiomyocyte hypertrophy induced by phenylephrine (PE). Physical removal of interscapular BAT during cold exposure decreased T3 synthesis and mitigated pathological cardiac remodeling. Conversely, UCP1 knockout eliminated thermogenic function during cold exposure, while preserving BAT integrity increased T3 synthesis and exacerbated pathological cardiac remodeling. <em>In vitro</em>, T3 further aggravated cardiomyocyte hypertrophy caused by PE. These findings underscore the distinct effects of physical and functional BAT ablation on pathological cardiac remodeling, primarily through altering T3 levels rather than thermogenesis in cold environments. This research provides new insights into the differential roles of BAT in cardiac health, particularly under cold exposure conditions.</div></div>","PeriodicalId":8779,"journal":{"name":"Biochemical and biophysical research communications","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456999","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
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