Journal of cellular biochemistry最新文献

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In Silico Hybridization and Molecular Dynamics Simulations for the Identification of Candidate Human MicroRNAs for Inhibition of Virulent Proteins' Expression in Staphylococcus aureus 抑制金黄色葡萄球菌毒力蛋白表达的候选人microrna的硅杂交和分子动力学模拟
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-12-10 DOI: 10.1002/jcb.30684
Harshita Tiwari, Subhadip Saha, Monidipa Ghosh
{"title":"In Silico Hybridization and Molecular Dynamics Simulations for the Identification of Candidate Human MicroRNAs for Inhibition of Virulent Proteins' Expression in Staphylococcus aureus","authors":"Harshita Tiwari,&nbsp;Subhadip Saha,&nbsp;Monidipa Ghosh","doi":"10.1002/jcb.30684","DOIUrl":"10.1002/jcb.30684","url":null,"abstract":"<p><i>Staphylococcus aureus</i> is a major threat to human health, causing infections that range in severity from moderate to fatal. The rising rates of antibiotic resistance highlight the critical need for new therapeutic techniques to combat this infection. It has been recently discovered that microRNAs (miRNAs) are essential for cross-kingdom communication, especially when it comes to host-pathogen interactions. It has been demonstrated that these short noncoding RNAs control gene expression in the gut microbiota, maintaining homeostasis; dysbiosis in this system has been linked to several diseases, including cancer. Our research attempts to use this understanding to target specific bacterial species and prevent severe diseases. In particular, we look for putative human miRNAs that can attach to virulent bacterial proteins' mRNA and prevent them from being expressed. In-silico hybridization experiments were performed between 100 human miRNA sequences with varied expression levels in gram-positive bacterial infections and five virulence factor genes. In addition, these miRNAs' binding properties were investigated using molecular dynamics (MD) simulations. Our findings demonstrate that human miRNAs can target and inhibit the expression of bacterial virulent genes, thereby opening up new paths for developing innovative miRNA-based therapeutics. The implementation of MD simulations in our study not only improves the validity of our findings but also proposes a new method for constructing miRNA-based therapies against life-threatening bacterial infections.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735889/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142799828","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
RETRACTION to “Adipose Tissue-Derived Stem Cells Inhibit Hypertrophic Scar (HS) Fibrosis via p38/MAPK Pathway” 撤回到“脂肪组织来源的干细胞通过p38/MAPK途径抑制肥厚性瘢痕(HS)纤维化”。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-12-10 DOI: 10.1002/jcb.30689
{"title":"RETRACTION to “Adipose Tissue-Derived Stem Cells Inhibit Hypertrophic Scar (HS) Fibrosis via p38/MAPK Pathway”","authors":"","doi":"10.1002/jcb.30689","DOIUrl":"10.1002/jcb.30689","url":null,"abstract":"<p><b>RETRACTION</b>: C.-Y. Chai, J. Song, Z. Tan, I.-C. Tai, C. Zhang, and S. Sun, “Adipose Tissue-Derived Stem Cells Inhibit Hypertrophic Scar (HS) Fibrosis via p38/MAPK Pathway,” <i>Journal of Cellular Biochemistry</i> 120, no. 3 (2019): 4057–4064, https://doi.org/10.1002/jcb.27689.</p><p>The above article, published online on 27 September 2018 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors; the journal Editor-in-Chief, Christian Behl; and Wiley Periodicals LLC. The retraction has been agreed due to concerns raised by third parties on the data presented in the article. Specifically, multiple image elements in Figures 1, 2, 3, and 4 were found to have been previously published by different author groups. Accordingly, the conclusions of this article are considered invalid by the editors.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jcb.30689","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142800130","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
Intrinsic Factors Behind the Long-COVID: V. Immunometabolic Disorders 长期covid背后的内在因素:V.免疫代谢紊乱。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-12-05 DOI: 10.1002/jcb.30683
Muhamed Adilović, Altijana Hromić-Jahjefendić, Lejla Mahmutović, Jasmin Šutković, Alberto Rubio-Casillas, Elrashdy M. Redwan, Vladimir N. Uversky
{"title":"Intrinsic Factors Behind the Long-COVID: V. Immunometabolic Disorders","authors":"Muhamed Adilović,&nbsp;Altijana Hromić-Jahjefendić,&nbsp;Lejla Mahmutović,&nbsp;Jasmin Šutković,&nbsp;Alberto Rubio-Casillas,&nbsp;Elrashdy M. Redwan,&nbsp;Vladimir N. Uversky","doi":"10.1002/jcb.30683","DOIUrl":"10.1002/jcb.30683","url":null,"abstract":"<div>\u0000 \u0000 <p>The complex link between COVID-19 and immunometabolic diseases demonstrates the important interaction between metabolic dysfunction and immunological response during viral infections. Severe COVID-19, defined by a hyperinflammatory state, is greatly impacted by underlying chronic illnesses aggravating the cytokine storm caused by increased levels of Pro-inflammatory cytokines. Metabolic reprogramming, including increased glycolysis and altered mitochondrial function, promotes viral replication and stimulates inflammatory cytokine production, contributing to illness severity. Mitochondrial metabolism abnormalities, strongly linked to various systemic illnesses, worsen metabolic dysfunction during and after the pandemic, increasing cardiovascular consequences. Long COVID-19, defined by chronic inflammation and immune dysregulation, poses continuous problems, highlighting the need for comprehensive therapy solutions that address both immunological and metabolic aspects. Understanding these relationships shows promise for effectively managing COVID-19 and its long-term repercussions, which is the focus of this review paper.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142785406","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
Circ-ECH1 May Compete With miR-708-5p to Regulate Ntrk2 in Bronchopulmonary Dysplasia Circ-EC1可能与miR-708-5p竞争调控支气管肺发育不良中的Ntrk2
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-25 DOI: 10.1002/jcb.30678
Hanrong Cheng, Dongcai Li, Yuming Tang, Tianyong Hu, Benqing Wu
{"title":"Circ-ECH1 May Compete With miR-708-5p to Regulate Ntrk2 in Bronchopulmonary Dysplasia","authors":"Hanrong Cheng,&nbsp;Dongcai Li,&nbsp;Yuming Tang,&nbsp;Tianyong Hu,&nbsp;Benqing Wu","doi":"10.1002/jcb.30678","DOIUrl":"10.1002/jcb.30678","url":null,"abstract":"<div>\u0000 \u0000 <p>Bronchopulmonary dysplasia (BPD) affects patients' quality of life. Circular RNAs participated in BPD. However, circ-ECH1's role in BPD has not been reported yet. This study aimed to explore the role and mechanism of circ-ECH1 in BPD. Hyperoxia-treated type II alveolar epithelial cells (L2 cells) were used as the in vitro BPD model. CCK-8, flow cytometry, and reactive oxygen species (ROS) were used to evaluate cell viability. Fluorescence in situ hybridization confirmed the subcellular localization. Circ-ECH1 overexpression (or inhibited) and miR-708-5p mimics were used to investigate the roles of circ-ECH1 and miR-708-5p in BPD. Quantitative reverse-transcription polymerase reaction (qRT-PCR) detected the expressions of circ-ECH1, miR-708-5p, and neurotrophic receptor tyrosine kinase 2 (Ntrk2). Ntrk2 expression was evaluated by Western blot analysis. Changes in lung tissues were evaluated by hematoxylin and eosin staining. Pulmonary fibrosis was examined by Mason staining. TUNEL staining was performed to evaluate cell apoptosis in lung tissues. RNA sequencing was performed in the lung tissues of BPD rats. The binding between circ-ECH1 and miR-708-5p was confirmed through dual luciferase activity. Hyperoxia reduced cell viability and increased cell apoptosis and ROS accumulation. In addition, hyperoxia decreased the expression levels of circ-ECH1, which is mainly located in the cytoplasm. Circ-ECH1 overexpression increased cell viability but reduced cell apoptosis and ROS accumulation. On the contrary, interference with circ-ECH1 further promoted cell apoptosis and reduced cell activity. Furthermore, circ-ECH1 overexpression reduced the incidence of pulmonary fibrosis and lung cell apoptosis. RNA sequencing, followed by qRT-PCR, confirmed that the expressions of Ntrk2 and miR-708-5p were affected by circ-ECH1. miR-708-5p mimics reversed the role of circ-ECH1 in the BPD. Mechanistically, circ-ECH1 may bind with miR-708-5p to regulate Ntrk2 expression. Circ-ECH1 may compet with miR-708-5p to regulate Ntrk2 expression in BPD. The findings provided a new target for BPD treatment.</p></div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716294","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
Reduction of Chemoresistance by Claudin-14-Targeting Peptide in Human Colorectal Cancer Cells Claudin-14靶向肽降低人类结直肠癌细胞的抗药性
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-20 DOI: 10.1002/jcb.30675
Yuko Mizukami, Shotaro Hashimoto, Tomoka Ando, Yoshinobu Ishikawa, Hiroaki Eguchi, Yuta Yoshino, Toshiyuki Matsunaga, Nobuhisa Matsuhashi, Akira Ikari
{"title":"Reduction of Chemoresistance by Claudin-14-Targeting Peptide in Human Colorectal Cancer Cells","authors":"Yuko Mizukami,&nbsp;Shotaro Hashimoto,&nbsp;Tomoka Ando,&nbsp;Yoshinobu Ishikawa,&nbsp;Hiroaki Eguchi,&nbsp;Yuta Yoshino,&nbsp;Toshiyuki Matsunaga,&nbsp;Nobuhisa Matsuhashi,&nbsp;Akira Ikari","doi":"10.1002/jcb.30675","DOIUrl":"10.1002/jcb.30675","url":null,"abstract":"<div>\u0000 \u0000 <p>The expression of claudins (CLDNs), major components of tight junctions (TJs), is abnormal in various solid tumors. CLDN14 is highly expressed in human colorectal cancer (CRC) tissues and confers chemoresistance. CLDN14 may become a novel therapeutic target for CRC, but CLDN14-targeting drugs have not been developed. Here, we searched for a CLDN14-targeting peptide, which can suppress CLDN14 expression and chemoresistance using human CRC-derived DLD-1 and LoVo cells. Among some short peptides which mimic the second extracellular loop structure of CLDN14, PSGMK most strongly suppressed the protein expression of CLDN14. The mRNA expression of other endogenous TJ components was unchanged by PSGMK. The PSGMK-induced reduction of CLDN14 protein was inhibited by chloroquine, a lysosome inhibitor, and monodansylcadaverine, a clathrin-dependent endocytosis inhibitor, indicating that PSGMK may enhance endocytosis and lysosomal degradation of CLDN14. In a three-dimensional culture model, the oxidative stress was significantly reduced by PSGMK, whereas hypoxia stress was not. Furthermore, the expression levels of nuclear factor erythroid 2-related factor 2, an oxidative stress response factor, and its target genes were decreased by PSGMK. These results suggest that PSGMK relieves stress conditions in spheroids. The cell viability of spheroids was decreased by anticancer drugs such as doxorubicin and oxaliplatin, which was exaggerated by the cotreatment with PSGMK. Our data indicate that CLDN14-targeting peptide, PSGMK has an anti-chemoresistance effect in CRC cells.</p></div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675846","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
Solasodine Downregulates ABCB1 Overexpression in Multidrug Resistant Cancer Cells Via Inhibiting Nrf2/Keap1 Signaling Pathway 索拉索定通过抑制 Nrf2/Keap1 信号通路下调耐多药癌细胞中 ABCB1 的过度表达
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-13 DOI: 10.1002/jcb.30674
Pradhapsingh Bharathiraja, Sugumar Baskar, N. Rajendra Prasad
{"title":"Solasodine Downregulates ABCB1 Overexpression in Multidrug Resistant Cancer Cells Via Inhibiting Nrf2/Keap1 Signaling Pathway","authors":"Pradhapsingh Bharathiraja,&nbsp;Sugumar Baskar,&nbsp;N. Rajendra Prasad","doi":"10.1002/jcb.30674","DOIUrl":"10.1002/jcb.30674","url":null,"abstract":"<div>\u0000 \u0000 <p>Multidrug-resistant (MDR) cancer cells maintain redox homeostasis to eliminate oxidative stress-mediated cell death. This study explores the effects of solasodine on regulating P-glycoprotein (P-gp) expression through the Nrf2/Keap1 signaling pathway and oxidative stress-induced sensitization of drug-resistant cancer cells to chemotherapeutics. Initially, the oxidative stress indicators such as intracellular ROS generation, the levels of 8-hydroxy-2-deoxyguanosine (8-OHdG) and gamma-H2AX (γ-H2AX) in the KBChR-8-5 drug-resistant cells were measured. Additionally, the protein expression levels of Nuclear factor erythroid 2-related factor 2 (Nrf-2), Kelch-like ECH-associated protein 1 (Keap1), and ATP Binding Cassette Subfamily B Member 1 (ABCB1)/P-gp were measured at various concentrations of solasodine (1, 5, &amp; 10 µM) through immunofluorescence and western blot analysis. The antioxidant activities in the KBChR-8-5 cells were assessed using established protocols. In this investigation, the treatment with solasodine and doxorubicin combination showed a notable increase in intracellular ROS generation in KBChR-8-5 cells. Furthermore, this combination treatment led to enhanced nuclear condensation, elevated levels of 8-OHdG, and increased γ-H2AX foci formation in the KBChR-8-5 cells. Solasodine treatment effectively inhibited the nuclear translocation of Nrf2 and activation of the <i>ABCB1</i> gene, consequently preventing overexpression of P-gp in KBChR-8-5 cells. Additionally, the combination therapy increased the lipid peroxidation levels while simultaneously reducing the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and the levels of glutathione (GSH). These results demonstrated that solasodine disrupts redox balance, and overcomes drug resistance by downregulating P-gp via regulating Nrf2/Keap1 signaling pathway in MDR cancer cells.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620389","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
Structural and Functional Insight Into YefM–YoeB Complex of Toxin–Antitoxin System From Streptococcus pneumoniae 对肺炎链球菌毒素-抗毒素系统 YefM-YoeB 复合物的结构和功能的深入研究
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-12 DOI: 10.1002/jcb.30672
Do-Hee Kim, Yong-Chan Lee, Chenglong Jin, Sung-Min Kang, Su-Jin Kang, Hoon-Seok Kang, Bong-Jin Lee
{"title":"Structural and Functional Insight Into YefM–YoeB Complex of Toxin–Antitoxin System From Streptococcus pneumoniae","authors":"Do-Hee Kim,&nbsp;Yong-Chan Lee,&nbsp;Chenglong Jin,&nbsp;Sung-Min Kang,&nbsp;Su-Jin Kang,&nbsp;Hoon-Seok Kang,&nbsp;Bong-Jin Lee","doi":"10.1002/jcb.30672","DOIUrl":"10.1002/jcb.30672","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Streptococcus pneumonia</i> is a Gram-positive and facultative anaerobic bacterium that causes a number of diseases, including otitis media, community-acquired pneumonia, sepsis, and meningitis. With the emergence of antibiotic-resistant strains, there is an urgent need to develop antibiotics with a novel mechanism. The toxin–antitoxin (TA) system, which is primarily found in prokaryotes, consists of a toxin and its equivalent antitoxin genes. The YefM–YoeB module is a Type II TA system, where the YoeB toxin functions as a putative mRNA interferase upon activation, while the YefM antitoxin acts as a transcription repressor by binding to its promoter region along with YoeB. In this study, we determined the crystal structure of the YefM–YoeB complex from <i>S</i>. <i>pneumoniae</i> TIGR4 to comprehend the binding mechanism of the TA system. Furthermore, an in vitro ribonuclease activity assay was conducted to identify the ribonuclease activity of the YoeB toxin. Additionally, furthermore, the oligomeric state of the YefM–YoeB complex in solution was investigated, and a DNA-binding mode was proposed. These structural and functional insights into the YefM–YoeB complex could provide valuable information for the development of novel antibiotics targeting <i>S</i>. <i>pneumonia</i>-associated diseases.</p></div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620473","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
RETRACTION: Downregulation of Fibroblast Growth Factor 5 Inhibits Cell Growth and Invasion of Human Nonsmall-Cell Lung Cancer Cells 回归:下调成纤维细胞生长因子 5 可抑制人类非小细胞肺癌细胞的生长和侵袭。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-08 DOI: 10.1002/jcb.30673
{"title":"RETRACTION: Downregulation of Fibroblast Growth Factor 5 Inhibits Cell Growth and Invasion of Human Nonsmall-Cell Lung Cancer Cells","authors":"","doi":"10.1002/jcb.30673","DOIUrl":"10.1002/jcb.30673","url":null,"abstract":"<p><b>RETRACTION:</b> Y. Zhou, Q. Yu, Y. Chu, X. Zhu, J. Deng, Q. Liu, Q. Wang, “Downregulation of Fibroblast Growth Factor 5 Inhibits Cell Growth and Invasion of Human Nonsmall-Cell Lung Cancer Cells,” <i>Journal of Cellular Biochemistry</i> 120, no. 5 (2019): 8238-8246. https://doi.org/10.1002/jcb.28107.</p><p>The above article, published online on 05 December 2018, in Wiley Online Library (wileyonlinelibrary.com), and has been retracted by agreement between the journal Editor-in-Chief, Christian Behl; and Wiley Periodicals LLC. The journal received notice from a third party regarding multiple images in this article which were published in other journals by different author groups, in which image was used in a different scientific context. The publisher confirmed that there is also duplication of images within Figure 3A of this article. The retraction has been agreed to because the evidence of image duplications both within this article and between different articles, each of which describes different experimental conditions, fundamentally compromises the conclusions presented in this article. The authors agree with the retraction.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jcb.30673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142603299","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
The Effects and Mechanisms of Chrysosplenetin in Targeting RANKL-Induced NF-κB Signaling and NFATc1 Activation to Protect Bone Density in Osteolytic Diseases 金丝桃素靶向 RANKL 诱导的 NF-κB 信号和 NFATc1 激活以保护骨溶解性疾病患者骨密度的作用和机制
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-11-01 DOI: 10.1002/jcb.30670
Guoju Hong, Lin Zhou, Wei He, Qiushi Wei, Jiake Xu
{"title":"The Effects and Mechanisms of Chrysosplenetin in Targeting RANKL-Induced NF-κB Signaling and NFATc1 Activation to Protect Bone Density in Osteolytic Diseases","authors":"Guoju Hong,&nbsp;Lin Zhou,&nbsp;Wei He,&nbsp;Qiushi Wei,&nbsp;Jiake Xu","doi":"10.1002/jcb.30670","DOIUrl":"10.1002/jcb.30670","url":null,"abstract":"<div>\u0000 \u0000 <p>Chrysosplenetin (CHR), an O-methylated flavonol from <i>Chamomilla recutita</i> and <i>Laggera pterodonta</i>, has previously demonstrated efficacy in enhancing osteoblast differentiation for treating postmenopausal osteoporosis. This study aims to evaluate CHR's potential to inhibit osteoclastogenesis and prevent bone deterioration in both in vitro and in vivo models. Using tartaric acid-resistant acid phosphatase staining and hydroxyapatite resorption assays, we examined the impact of CHR on RANKL-induced osteoclasts derived from mouse bone marrow monocytes. Additionally, Western blot analysis and qRT-PCR were utilized to assess the protein and gene expressions within the MAPK and NF-κB signaling pathways, as well as the NFATc1 pathway. In vivo, CHR's effects were validated using micro-CT and histomorphometry in an ovariectomized mouse model, showing significant reduction in osteoclast activity and bone loss. The study confirms CHR's inhibition of osteoclastogenesis through interference with RANKL-mediated signaling pathways, suggesting its potential as a novel therapeutic agent for osteolytic conditions related to osteoclast-osteoblast dysregulation.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557922","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
Role of Sodium-Dependent Vitamin C Transporter-2 and Ascorbate in Regulating the Hypoxic Pathway in Cultured Glioblastoma Cells 钠依赖性维生素 C 转运体-2 和抗坏血酸在调节培养胶质母细胞瘤细胞缺氧途径中的作用
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-10-09 DOI: 10.1002/jcb.30658
Eleanor R. Burgess, Citra Praditi, Elisabeth Phillips, Margreet C. M. Vissers, Bridget A. Robinson, Gabi U. Dachs, George A. R. Wiggins
{"title":"Role of Sodium-Dependent Vitamin C Transporter-2 and Ascorbate in Regulating the Hypoxic Pathway in Cultured Glioblastoma Cells","authors":"Eleanor R. Burgess,&nbsp;Citra Praditi,&nbsp;Elisabeth Phillips,&nbsp;Margreet C. M. Vissers,&nbsp;Bridget A. Robinson,&nbsp;Gabi U. Dachs,&nbsp;George A. R. Wiggins","doi":"10.1002/jcb.30658","DOIUrl":"10.1002/jcb.30658","url":null,"abstract":"<p>The most common and aggressive brain cancer, glioblastoma, is characterized by hypoxia and poor survival. The pro-tumour transcription factor, hypoxia-inducible factor (HIF), is regulated via HIF-hydroxylases that require ascorbate as cofactor. Decreased HIF-hydroxylase activity triggers the hypoxic pathway driving cancer progression. Tissue ascorbate accumulates via the sodium-dependent vitamin C transporter-2 (SVCT2). We hypothesize that glioblastoma cells rely on SVCT2 for ascorbate accumulation, and that knockout of this transporter would disrupt the regulation of the hypoxic pathway by ascorbate. Ascorbate uptake was measured in glioblastoma cell lines (U87MG, U251MG, T98G) by high-performance liquid chromatography. CRISPR/Cas9 was used to knockout SVCT2. Cells were treated with cobalt chloride, desferrioxamine or 5% oxygen, with/without ascorbate, and key hypoxic pathway proteins were measured using Western blot analysis. Ascorbate uptake was cell line dependent, ranging from 1.7 to 11.0 nmol/10<sup>6</sup> cells. SVCT2-knockout cells accumulated 90%–95% less intracellular ascorbate than parental cells. The hypoxic pathway was induced by all three stimuli, and ascorbate reduced this induction. In the SVCT2-knockout cells, ascorbate had limited effect on the hypoxic pathway. This study verifies that intracellular ascorbate is required to suppress the hypoxic pathway. As patient survival is related to an activated hypoxic pathway, increasing intra-tumoral ascorbate may be of clinical interest.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11729540/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390768","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
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