Cellular Oncology最新文献

筛选
英文 中文
GALNT6 drives lenvatinib resistance in hepatocellular carcinoma through autophagy and cancer-associated fibroblast activation.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-24 DOI: 10.1007/s13402-024-01032-7
Peiling Zhang, Shiping Chen, Jialiang Cai, Lina Song, Bing Quan, Jinglei Wan, Guiqi Zhu, Biao Wang, Yi Yang, Zhengjun Zhou, Tao Li, Zhi Dai
{"title":"GALNT6 drives lenvatinib resistance in hepatocellular carcinoma through autophagy and cancer-associated fibroblast activation.","authors":"Peiling Zhang, Shiping Chen, Jialiang Cai, Lina Song, Bing Quan, Jinglei Wan, Guiqi Zhu, Biao Wang, Yi Yang, Zhengjun Zhou, Tao Li, Zhi Dai","doi":"10.1007/s13402-024-01032-7","DOIUrl":"https://doi.org/10.1007/s13402-024-01032-7","url":null,"abstract":"<p><strong>Background: </strong>Hepatocellular carcinoma (HCC) remains a significant global health challenge with limited treatment options. Lenvatinib, a tyrosine kinase inhibitor, has shown promise but is often undermined by the development of drug resistance.</p><p><strong>Methods: </strong>Utilizing high-throughput sequencing, we investigated the molecular mechanisms underlying lenvatinib resistance in HCC cells, with a focus on metabolic pathways. Key genes, including GALNT6, were validated through quantitative real-time PCR. The effects of GALNT6 knockdown on lenvatinib sensitivity were examined in vitro and in vivo. O-GalNAc glycosylation was assessed using Vicia Villosa Lectin. Immune cell infiltration and interactions were analyzed in the TCGA-LIHC cohort, with further validation by Western blotting and immunohistochemistry.</p><p><strong>Results: </strong>Our findings indicate that lenvatinib resistance in HCC is driven by the mucin-type O-glycosylation pathway, with GALNT6 playing a critical role. Knockdown of GALNT6 led to reduced O-GalNAc glycosylation, including the modification of LAPTM5, resulting in decreased LAPTM5 activity and autophagy inhibition. Additionally, GALNT6 silencing disrupted the PDGFA-PDGFRB axis, impairing the activation of cancer-associated fibroblasts (CAFs) and reducing their secretion of SPP1, which collectively diminished lenvatinib resistance.</p><p><strong>Conclusions: </strong>GALNT6 is integral to the resistance mechanisms against lenvatinib in HCC by modulating autophagy and CAF activation. Targeting GALNT6 offers a promising strategy to enhance lenvatinib efficacy and improve therapeutic outcomes in HCC.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Hepatic arterial infusion chemotherapy (HAIC) combined with Tislelizumab and Lenvatinib for unresectable hepatocellular carcinoma: a retrospective single-arm study.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-24 DOI: 10.1007/s13402-024-01031-8
Ruirui Sun, Yang Gou, Long Pan, Qiang He, Yin Zhou, Yi Luo, Chenrui Wu, Yaowu Zhao, Zixuan Fu, Ping Huang
{"title":"Correction to: Hepatic arterial infusion chemotherapy (HAIC) combined with Tislelizumab and Lenvatinib for unresectable hepatocellular carcinoma: a retrospective single-arm study.","authors":"Ruirui Sun, Yang Gou, Long Pan, Qiang He, Yin Zhou, Yi Luo, Chenrui Wu, Yaowu Zhao, Zixuan Fu, Ping Huang","doi":"10.1007/s13402-024-01031-8","DOIUrl":"https://doi.org/10.1007/s13402-024-01031-8","url":null,"abstract":"","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The survival prediction analysis and preliminary study of the biological function of YEATS2 in hepatocellular carcinoma.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-24 DOI: 10.1007/s13402-024-01019-4
Yao Long, Wei Wang, Shouping Liu, Xiang Wang, Yongguang Tao
{"title":"The survival prediction analysis and preliminary study of the biological function of YEATS2 in hepatocellular carcinoma.","authors":"Yao Long, Wei Wang, Shouping Liu, Xiang Wang, Yongguang Tao","doi":"10.1007/s13402-024-01019-4","DOIUrl":"https://doi.org/10.1007/s13402-024-01019-4","url":null,"abstract":"<p><strong>Purpose: </strong>Our study aims to develop and validate a novel molecular marker for the prognosis and diagnosis of hepatocellular carcinoma (HCC) MATERIALS & METHODS: We retrospectively analyzed mRNA expression profile and clinicopathological data of HCC patients fetched from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO) and The International Cancer Genome Consortium (ICGC) datasets. Univariate Cox regression analysis was performed to collect differentially expressed mRNA (DEmRNAs) from HCC and non-tumor tissues, and YEATS2, a prognostic marker, was identified by further analysis. ROC curve, survival analysis and multivariate Cox regression analysis as well as nomograms were used to evaluate the prognosis of this gene. Finally, the biological function of this gene was preliminarily discussed by using single gene Gene Set Enrichment Analysis (GSEA), and the YEATS2 overexpression and knockdown hepatoma cell line was used to verify the results in vitro and in vivo.</p><p><strong>Results: </strong>Based on the clinical information of HCC in TCGA, GEO and ICGC databases, the gene YEATS2 with significant differences from HCC was identified. There was a statistical difference in the survival prognosis between the two databases and the ROC curve showed that the survival of HCC in both TCGA, GSE14520 and ICGC groups had a satisfactory predictive effect. Univariate and multivariate Cox regression analysis showed that YEATS2 was an independent prognostic factor for HCC, and Nomograms, which combined this prognostic feature with significant clinical features, provided an important reference for the clinical prognostic diagnosis of HCC. Next, we constructed overexpression and knockdown YEATS2 cell line in Hep3B and LM3 cells, and further proved that overexpression YEATS2 promote the proliferation and migration of HCC cells by CCK8, colony formation experiment, and transwell assays, and knockdown YEATS2 inhibited the proliferation and migration of HCC cells by CCK8, colony formation experiment, and transwell assays. Finally, the biological function of YEATS2 was preliminarily explored through GSEA analysis of a single gene, and it was found that it was significantly correlated with cell cycle and DNA repair, which provided us with ideas for further analysis. Furthermore, the knockdown of YEATS2 promoted radiation-induced DNA damage, enhanced radiosensitivity, and ultimately inhibited the proliferation of hepatocellular carcinoma cells in vitro and in vivo.</p><p><strong>Conclusions: </strong>Our study identified a promising prognostic marker for hepatocellular carcinoma that is useful for clinical decision-making and individualized treatment.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic insights into tumor lymph node metastasis in melanoma.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-20 DOI: 10.1007/s13402-024-01027-4
Jiayi Huang, Zixu Gao, Jiangying Xuan, Ningyuan Gao, Chuanyuan Wei, Jianying Gu
{"title":"Metabolic insights into tumor lymph node metastasis in melanoma.","authors":"Jiayi Huang, Zixu Gao, Jiangying Xuan, Ningyuan Gao, Chuanyuan Wei, Jianying Gu","doi":"10.1007/s13402-024-01027-4","DOIUrl":"https://doi.org/10.1007/s13402-024-01027-4","url":null,"abstract":"<p><p>Although accounting for only a small amount of skin cancers, melanoma contributes prominently to skin cancer-related deaths, which are mostly caused by metastatic diseases, and lymphatic metastasis constitutes the main route. In this review, we concentrate on the metabolic mechanisms of tumor lymph node (LN) metastasis in melanoma. Two hypotheses of melanoma LN metastasis are introduced, which are the premetastatic niche (PMN) and parallel progression model. Dysregulation of oxidative stress, lactic acid concentration, fatty acid synthesis, amino acid metabolism, autophagy, and ferroptosis construct the metabolic mechanisms in LN metastasis of melanoma. Moreover, melanoma cells also promote LN metastasis by interacting with non-tumor cells through metabolic reprogramming in TIME. This review will deepen our understanding of the mechanism of lymph node metastasis in melanoma.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142865987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RAB37 suppresses the EMT, migration and invasion of gastric cancer cells by mediating autophagic degradation of β-catenin.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-19 DOI: 10.1007/s13402-024-01028-3
Jiangling Duan, Xiuyin Guan, Jiaxin Xue, Jiayu Wang, Zhiwei Wang, Xuan Chen, Wen Jiang, Wannian Sui, Yongfang Song, Tianshu Li, Dewang Rao, Xueyan Wu, Ming Lu
{"title":"RAB37 suppresses the EMT, migration and invasion of gastric cancer cells by mediating autophagic degradation of β-catenin.","authors":"Jiangling Duan, Xiuyin Guan, Jiaxin Xue, Jiayu Wang, Zhiwei Wang, Xuan Chen, Wen Jiang, Wannian Sui, Yongfang Song, Tianshu Li, Dewang Rao, Xueyan Wu, Ming Lu","doi":"10.1007/s13402-024-01028-3","DOIUrl":"https://doi.org/10.1007/s13402-024-01028-3","url":null,"abstract":"<p><strong>Background: </strong>Gastric cancer, characterized by its high morbidity and mortality rates, exhibits low levels of RAB37. The role and molecular mechanisms of RAB37, a small GTPase, in the pathogenesis of gastric cancer are still unclear.</p><p><strong>Methods: </strong>We assessed RAB37 expression in gastric cancer cells using quantitative Polymerase Chain Reaction (qPCR), Western blot, and immunohistochemical staining (IHC), and analyzed EMT marker proteins and autophagy changes via Western blot, immunofluorescence (IF), and transmission electron microscopy (TEM). Co-immunoprecipitation (co-IP) was used to identify protein-protein interactions. We studied the migration and invasion of gastric cancer cells using wound healing and transwell assays in vitro and a mouse pulmonary metastasis model in vivo.</p><p><strong>Results: </strong>Overexpression of RAB37 suppressed EMT, invasion, and migration while enhancing autophagy in gastric cancer cells, which was dependent on its GTPase activity. However, all these effects could be reversed by the autophagy inhibitor chloroquine. Regarding the molecular mechanism, RAB37 strengthened the interaction between p62 and β-catenin, which consequently enhanced the p62-mediated autophagic degradation of β-catenin. Furthermore, RAB37 curbed the pulmonary metastasis of both general and cisplatin-resistant gastric cancer cells.</p><p><strong>Conclusion: </strong>The low level of RAB37 reduces interaction between p62 and β-catenin and then the autophagic degradation of β-catenin, thereby promoting the EMT, invasion, and migration in gastric cancer cells. The low expression of RAB37 in gastric cancer suggests a potential therapeutic target, especially for cisplatin-resistant gastric cancer.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring tumor microenvironment interactions and apoptosis pathways in NSCLC through spatial transcriptomics and machine learning.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-19 DOI: 10.1007/s13402-024-01025-6
Huimin Li, Yuheng Jiao, Yi Zhang, Junzhi Liu, Shuixian Huang
{"title":"Exploring tumor microenvironment interactions and apoptosis pathways in NSCLC through spatial transcriptomics and machine learning.","authors":"Huimin Li, Yuheng Jiao, Yi Zhang, Junzhi Liu, Shuixian Huang","doi":"10.1007/s13402-024-01025-6","DOIUrl":"https://doi.org/10.1007/s13402-024-01025-6","url":null,"abstract":"<p><strong>Background: </strong>The most common type of lung cancer is non-small cell lung cancer (NSCLC), accounting for 85% of all cases. Programmed cell death (PCD), an important regulatory mechanism for cell survival and homeostasis, has become increasingly prominent in cancer research in recent years. As such, exploring the role of PCD in NSCLC may help uncover new mechanisms for therapeutic targets.</p><p><strong>Methods: </strong>We utilized the GEO database and TCGA NSCLC gene data to screen for co-expressed genes. To delve deeper, single-cell sequencing combined with spatial transcriptomics was employed to study the intrinsic mechanisms of programmed cell death in cells and their interaction with the tumor microenvironment. Furthermore, Mendelian randomization was applied to screen for causally related genes. Prognostic models were constructed using various machine learning algorithms, and multi-cohort multi-omics analyses were conducted to screen for genes. In vitro experiments were then carried out to reveal the biological functions of the genes and their relationship with apoptosis.</p><p><strong>Results: </strong>Cells with high programmed cell death activity primarily activate pathways related to apoptosis, cell migration, and hypoxia, while also exhibiting strong interactions with smooth muscle cells in the tumor microenvironment. Based on a set of programmed cell death genes, the prognostic model NSCLCPCD demonstrates strong predictive capabilities. Moreover, laboratory experiments confirm that SLC7A5 promotes the proliferation of NSCLC cells, and the knockout of SLC7A5 significantly increases tumor cell apoptosis.</p><p><strong>Conclusions: </strong>Our data indicate that programmed cell death is predominantly associated with pathways related to apoptosis, tumor metastasis, and hypoxia. Additionally, it suggests that SLC7A5 is a significant risk indicator for the prognosis of non-small cell lung cancer (NSCLC) and may serve as an effective target for enhancing apoptosis in NSCLC tumor cells.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-canonical function of PHGDH promotes HCC metastasis by interacting with METTL3.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-18 DOI: 10.1007/s13402-024-01029-2
Bin Cheng, Jing Ma, Ni Tang, Rui Liu, Pai Peng, Kai Wang
{"title":"Non-canonical function of PHGDH promotes HCC metastasis by interacting with METTL3.","authors":"Bin Cheng, Jing Ma, Ni Tang, Rui Liu, Pai Peng, Kai Wang","doi":"10.1007/s13402-024-01029-2","DOIUrl":"https://doi.org/10.1007/s13402-024-01029-2","url":null,"abstract":"<p><strong>Purpose: </strong>Phosphoglycerate dehydrogenase (PHGDH), a pivotal enzyme in serine synthesis, plays a key role in the malignant progression of tumors through both its metabolic activity and moonlight functions. This study aims to elucidate the non-canonical function of PHGDH in promoting hepatocellular carcinoma (HCC) metastasis through its interaction with methyltransferase-like 3 (METTL3), potentially uncovering a novel therapeutic target.</p><p><strong>Methods: </strong>Western blot was used to study PHGDH expression changes under anoikis and cellular functional assays were employed to assess its role in HCC metastasis. PHGDH-METTL3 interactions were explored using GST pull-down, Co-immunoprecipitation and immunofluorescence assays. Protein stability and ubiquitination assays were performed to understand PHGDH's impact on METTL3. Flow cytometry, cellular assays and nude mice model were used to confirm PHGDH's effects on anoikis resistance and HCC metastasis in vitro and in vivo.</p><p><strong>Results: </strong>PHGDH is upregulated under anoikis conditions, thereby enhancing the metastatic potential of HCC cells. By interacting with METTL3, PHGDH prevents its ubiquitin-dependent degradation, resulting in higher METTL3 protein levels. This interaction upregulates epithelial-mesenchymal transition related genes, contributing to anoikis resistance and HCC metastasis. Nude mice model confirms that PHGDH's interaction with METTL3 is crucial for driving HCC metastasis.</p><p><strong>Conclusion: </strong>Our research presents the first evidence that PHGDH promotes HCC metastasis by interacting with METTL3. The PHGDH-METTL3 axis may serve as a potential clinical therapeutic target, offering new insights into the multifaceted roles of PHGDH in HCC metastasis.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","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 BRCA1 in glioblastoma etiology.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-10 DOI: 10.1007/s13402-024-01024-7
Emirhan Harbi, Michael Aschner
{"title":"Role of BRCA1 in glioblastoma etiology.","authors":"Emirhan Harbi, Michael Aschner","doi":"10.1007/s13402-024-01024-7","DOIUrl":"https://doi.org/10.1007/s13402-024-01024-7","url":null,"abstract":"<p><p>BRCA1 (Breast Cancer 1) is a tumor suppressor gene with a role in DNA repair by Homologous Recombination (HR), and maintenance of genomic stability that is frequently investigated in breast, prostate, and ovarian cancers. BRCA1 mutations or dysregulation in glioblastoma can lead to impaired DNA repair mechanisms, resulting in tumor progression and resistance to standard therapies. Several studies have shown that BRCA1 expression is altered, albeit rarely, in glioblastoma, leading to poor prognosis and increased tumor aggressiveness. In addition, the communication of BRCA1 with other molecular pathways such as p53 and PTEN further complicates its role in glioblastoma pathogenesis. Targeting BRCA1-related pathways in these cases has shown the potential to improve the efficacy of standard treatments, including radiotherapy and chemotherapy. The development of (Poly (ADP-ribose) Polymerase) PARP inhibitors that exploit the lack of HR also offers a therapeutic approach to glioblastoma patients with BRCA1 mutations. Despite these advances, the heterogeneity of glioblastoma and its complex tumor microenvironment make the translation of such approaches into clinical practice still challenging, and there is an \"unmet need\". This review discusses the current mechanisms of etiology and potential treatment of BRCA1-related glioblastoma.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142802777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting CA9 restricts pancreatic cancer progression through pH regulation and ROS production.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-10 DOI: 10.1007/s13402-024-01022-9
Jing Yang, Xuhui Tong, Wei Wang, Xianjun Yu, Jin Xu, Si Shi
{"title":"Targeting CA9 restricts pancreatic cancer progression through pH regulation and ROS production.","authors":"Jing Yang, Xuhui Tong, Wei Wang, Xianjun Yu, Jin Xu, Si Shi","doi":"10.1007/s13402-024-01022-9","DOIUrl":"https://doi.org/10.1007/s13402-024-01022-9","url":null,"abstract":"<p><strong>Purpose: </strong>Lactate is a key metabolite produced by glycolytic metabolism, yet it also serves as an energy source for cancer cells. Lactate accumulation in the tumor microenvironment (TME) has been demonstrated to correlate with immunosuppressive TME and tumor progression. As a highly glycolytic tumor, it is crucial to decipher the underlying mechanism in pancreatic ductal adenocarcinoma (PDAC).</p><p><strong>Methods: </strong>Bioinformation analysis was used to identify lactate mediated carbonic anhydrase IX (CA9) upregulation. CCK-8, colony formation and mouse xenograft assay were utilized to study the effect of CA9 in PDAC. ECAR, OCR and pHi measurement confirmed the impacts of CA9 in Warburg phenotype. Using confocal microscopy, flow cytometry, qRT-PCR, co-IP, we validated the signaling pathways in PDAC to regulate reactive oxygen species (ROS) production.</p><p><strong>Results: </strong>We confirmed that CA9 is highly expressed in PDAC and positively regulated by lactate levels. CA9 can enhance the proliferative and migratory capabilities of PDAC cells. Pharmacologic inhibition or knockdown of CA9 significantly reduce pHi, increase the intracellular lactate and reverse the Warburg phenotype. The intracellular lactate accumulation caused by CA9 knockdown upregulates ROS and mitochondrial dysfunction. Furthermore, it was discovered that the competitive binding of CA9 with FUS inhibits the facilitation of FUS on NOX4 pre-mRNA splicing.</p><p><strong>Conclusion: </strong>Collectively, our data illustrate that CA9 has a direct regulatory role in pHi homeostasis and ROS production, providing a potential therapeutic target for PDAC treatment.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142802778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regulation of AUF1 alternative splicing by hnRNPA1 and SRSF2 modulate the sensitivity of ovarian cancer cells to cisplatin.
IF 4.9 2区 医学
Cellular Oncology Pub Date : 2024-12-09 DOI: 10.1007/s13402-024-01023-8
Jia-Mei Wang, Ning Liu, Xue-Jing Wei, Fu-Ying Zhao, Chao Li, Hua-Qin Wang, Chuan Liu
{"title":"Regulation of AUF1 alternative splicing by hnRNPA1 and SRSF2 modulate the sensitivity of ovarian cancer cells to cisplatin.","authors":"Jia-Mei Wang, Ning Liu, Xue-Jing Wei, Fu-Ying Zhao, Chao Li, Hua-Qin Wang, Chuan Liu","doi":"10.1007/s13402-024-01023-8","DOIUrl":"https://doi.org/10.1007/s13402-024-01023-8","url":null,"abstract":"<p><strong>Purpose: </strong>Clarification of cisplatin resistance may provide new targets for therapy in cisplatin resistant ovarian cancer. The current study aims to explore involvement of isoforms of AU-rich element RNA-binding protein 1 (AUF1) in cisplatin resistance in ovarian cancer.</p><p><strong>Methods: </strong>The cancer stem cell-like features were analyzed using colony formation assay, tumor sphere formation assay and nude mouse xenograft experiments. AUF1 isoforms expression was analyzed using immunoblotting, qRT-PCR, and immunohistochemistry. RIP and Biotin pulldown was used to analyze the interaction of SRSF2 and hnRNPA1 with AUF1 transcript. Transcriptome regulated by AUF1 isoforms was analyzed by RNA-seq.</p><p><strong>Results: </strong>The current study demonstrated differential expression of AUF1 isoforms in cisplatin sensitive and resistant ovarian cancer tissues and cells. P37 isoform promoted proliferation, while p45 isoform enhanced responsiveness of ovarian cancer cells to cisplatin. the clonal formation capacity of the cells, and the restoration of p45 expression reduced the capacity with cisplatin treatment. The competitive binding of phosphorylated hnRNPA1 and O-GlcNAc-modified SRSF2 on AUF1 exon 2 and exon 7 regulated the alternative splicing of AUF1.</p><p><strong>Conclusion: </strong>The competitive binding of phosphorylated hnRNPA1 and O-GlcNAc modified SRSF2 on exon 2 and exon 7 regulated the alternative splicing of AUF1 and subsequent isoform expression. P37 isoform played a \"cancer promoter\" role, p42 and p45, especially p45 played a \"cancer suppressor\" role in ovarian cancer. This study provides a new target for exploring the drug resistance mechanism of ovarian cancer.</p>","PeriodicalId":49223,"journal":{"name":"Cellular Oncology","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142802466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信