Haixia Jiang, Lan Li, Yunxia Bao, Xiongyue Cao, Lifang Ma
{"title":"Microbiota in tumors: new factor influencing cancer development.","authors":"Haixia Jiang, Lan Li, Yunxia Bao, Xiongyue Cao, Lifang Ma","doi":"10.1038/s41417-024-00833-0","DOIUrl":"https://doi.org/10.1038/s41417-024-00833-0","url":null,"abstract":"<p><p>Tumor microbiota research is a new field in oncology. With the advancement of high-throughput sequencing, there is growing evidence that a microbial community exists within tumor tissue. How these bacteria access tumor cells varies, including through the invasion of mucous membranes, the bloodstream, or the gut-organ axis. Previous literature has shown that microbes promote the development and progression of cancer through various mechanisms, such as affecting the host's immune system, promoting inflammation, regulating metabolism, and activating invasion and transfer. The study of the tumor microbiota offers a new perspective for the diagnosis and treatment of cancer, and it holds the potential for the development of new diagnostic tools and therapies. The role of the tumor microbiota in the pathogenesis of cancer is becoming increasingly evident, and future research will continue to uncover the specific mechanisms of action of these microbes, potentially shedding light on new strategies and methods for cancer prevention and therapy. This article reviews the latest advancements in this field, including how intratumor microbes migrate, their carcinogenic mechanisms, and the characteristics of different types of tumor microbes as well as the application of relevant methods in tumor microbiota research and the clinical values of targeting tumor microbes in cancer therapy.</p>","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Giovanna Mangiapane, Vito Giuseppe D'Agostino, Gianluca Tell
{"title":"Emerging roles of bases modifications and DNA repair proteins in onco-miRNA processing: novel insights in cancer biology.","authors":"Giovanna Mangiapane, Vito Giuseppe D'Agostino, Gianluca Tell","doi":"10.1038/s41417-024-00836-x","DOIUrl":"https://doi.org/10.1038/s41417-024-00836-x","url":null,"abstract":"<p><p>Onco-microRNAs (onco-miRNAs) are essential players in the post-transcriptional regulation of gene expression and exert a crucial role in tumorigenesis. Novel information about the epitranscriptomic modifications, involved in onco-miRNAs biogenesis, and in the modulation of their interplay with regulatory factors responsible for their processing and sorting are emerging. In this review, we highlight the contribution of bases modifications, sequence motifs, and secondary structures on miRNAs processing and sorting. We focus on several modes of action of RNA binding proteins (RBPs) on these processes. Moreover, we describe the new emerging scenario that shows an unexpected though essential role of selected DNA repair proteins in actively participating in these events, highlighting the original intervention represented by the non-canonical functions of Apurinic/apyrimidinic endodeoxyribonuclease 1 (APE1), a central player in Base Excision Repair (BER) pathway of DNA lesions. Taking advantage of this new knowledge will help in prospecting new cancer diagnostic and therapeutic strategies.</p>","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multifaceted role of microRNA-301a in human cancer: from biomarker potential to therapeutic targeting.","authors":"Yuhang Chen, Chien-Shan Cheng, Lianyu Chen","doi":"10.1038/s41417-024-00832-1","DOIUrl":"https://doi.org/10.1038/s41417-024-00832-1","url":null,"abstract":"<p><p>With the growing data on microRNA (miRNA) expression in tissues and circulation, there is increasing evidence for the potential of microRNAs to serve as biomarkers in cancer diagnosis and prognosis, as well as novel therapeutic targets. The expression level of miRNA-301a (miR-301a) is altered in a wide range of human tumor types, and numerous studies have revealed the roles of miR-301a in tumorigenesis and tumor progression. Herein, we comprehensively summarize, compare, and contrast the research advancements on the role of miR-301a in different cancers. Differential expression patterns of miR-301a in tissues and biofluids are implicated in cancer diagnosis, treatment response, and prognosis. MiR-301a modulates the expression of multiple genes, other noncoding RNAs, and signaling cascade via direct or indirect regulation in human cancer proliferation, migration, invasion, angiogenesis, and radio- or chemotherapy resistance. Cancer cell-associated miR-301a affects the tumor microenvironment through the alteration of immune function and cancer metabolism. These findings highlight the functional roles, clinical implications, and therapeutic relevance of miR-301a in various human cancers.</p>","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flavia Ferrantelli, Francesco Manfredi, Micaela Donnini, Patrizia Leone, Katherina Pugliese, Eleonora Olivetta, Andrea Giovannelli, Antonio Di Virgilio, Maurizio Federico, Chiara Chiozzini
{"title":"Extracellular vesicle-based anti-HOXB7 CD8+ T cell-specific vaccination strengthens antitumor effects induced by vaccination against Her2/neu","authors":"Flavia Ferrantelli, Francesco Manfredi, Micaela Donnini, Patrizia Leone, Katherina Pugliese, Eleonora Olivetta, Andrea Giovannelli, Antonio Di Virgilio, Maurizio Federico, Chiara Chiozzini","doi":"10.1038/s41417-024-00831-2","DOIUrl":"10.1038/s41417-024-00831-2","url":null,"abstract":"We previously developed an innovative strategy to induce CD8+ T lymphocyte-immunity through in vivo engineering of extracellular vesicles (EVs). This approach relies on intramuscular injection of DNA expressing antigens of interest fused at a biologically-inactive HIV-1 Nef protein mutant (Nefmut). Nefmut is very efficiently incorporated into EVs, thus conveying large amounts of fusion proteins into EVs released by transfected cells. This platform proved successful against highly immunogenic tumor-specific antigens. Here, we tested whether antigen-specific CD8+ T cell immune responses induced by engineered EVs can counteract the growth of tumors expressing two “self” tumor-associated antigens (TAAs): HOXB7 and Her2/neu. FVB/N mice were injected with DNA vectors expressing Nefmut fused to HOXB7 or Her2/neu, singly and in combination, before subcutaneous implantation of breast carcinoma cells co-expressing HOXB7 and Her2/neu. All mice immunized with the combination vaccine remained tumor-free, whereas groups vaccinated with single Nefmut-fused antigens were only partly protected, with stronger antitumor effects in Her2/neu-immunized mice. Double-vaccinated mice also controlled tumor growth upon a later tumor cell re-challenge. Importantly, co-vaccination also contained tumors in a therapeutic immunization setting. These results showed the efficacy of EV-based vaccination against two TAAs, and represent the first demonstration that HOXB7 may be targeted in multi-antigen immunotherapy strategies.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1688-1695"},"PeriodicalIF":4.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00831-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PARD6A promotes lung adenocarcinoma cell proliferation and invasion through Serpina3","authors":"Lanlin Hu, Mingxin Liu, Bo Tang, Xurui Li, Huasheng Xu, Huani Wang, Dandan Wang, Sijia Liu, Chuan Xu","doi":"10.1038/s41417-024-00829-w","DOIUrl":"10.1038/s41417-024-00829-w","url":null,"abstract":"Par6α encoded by PARD6A is a member of the PAR6 family and is reported to promote cancer initiation and progression. PARD6A is frequently upregulated in different types of cancers, but its regulatory role in lung cancer progression is yet to be established. In this study, we analyzed the PARD6A expression in biopsies from lung adenocarcinoma (LUAD) patients, and the survival probability using LUAD tissue microarray (TMA) and online datasets from TCGA and GEO. We conducted in vitro and in vivo assays to assess the role of PARD6A in regulating lung cancer progression, including proliferation, wound healing, transwell, RNA-seq, and subcutaneous tumor mice models. Our findings revealed that PARD6A is highly expressed in cancer tissues from LUAD patients and is associated with poor prognosis in LUAD patients. In vitro assays showed that PARD6A promoted cell proliferation, migration, and invasion. The transcriptome sequencing identified Serpina3 as one of the key downstream molecules of PARD6A. Ectopic expression of Serpina3 rescued impaired proliferation, migration, and invasion in PARD6A-knocking down H1299 cells, whereas silencing Serpina3 impeded enhanced proliferation, migration, and invasion in PARD6A-overexpressing H1975 cells. Our findings suggest that PARD6A promotes lung cancer progression by inducing Serpina3, which may be a promising therapeutic target.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1696-1707"},"PeriodicalIF":4.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chronic stress promotes non-small cell lung cancer (NSCLC) progression through circMBOAT2 upregulation mediated by CTCF","authors":"Ting Zhou, Zhicong Chen, Yitian Chen, Canye Li, Zhijun Xiao, Jingjing Duan, Zhen Yang, Feng Xu","doi":"10.1038/s41417-024-00830-3","DOIUrl":"10.1038/s41417-024-00830-3","url":null,"abstract":"Circular RNA (circRNA) has been demonstrated to play a pivotal role in tumor development. This study aimed to investigate the regulatory mechanism of circMBOAT2 in non-small cell lung cancer (NSCLC) and its association with tumor growth induced by chronic stress. We constructed stably transfected A549 and H1299 cell lines with circMBOAT2 overexpression and knockdown. Colony formation, scratch healing, Transwell and CCK-8 assays were conducted to evaluate the effects of circMBOAT2 in the presence or absence of norepinephrine (NE) treatment on the proliferation, migration, and invasion of NSCLC cells, respectively. Additionally, A chronic unpredictable mild stress (CUMS)-induced depression with heterotopic transplantation LLC and injection of antisense oligonucleotides (ASOs) targeting circMBOAT2 mouse model was established to evaluate the effect of chronic stress on tumorigenesis via circMBOAT2. Moreover, we investigated the regulatory effect of CCCTC binding factor (CTCF) on circMBOAT2 expression through in vivo and in vitro silencing of CTCF. Our results revealed a significant upregulation of circMBOAT2 in NSCLC cell lines and tumor tissues. circMBOAT2 knockdown inhibited the proliferation, migration, and invasion of NSCLC cells, while NE treatment reversed the cell suppression effect caused by circMBOAT2 knockdown. Notably, CUMS promoted tumor growth, while silencing circMBOAT2 inhibited tumor growth in vivo. Furthermore, we identified CTCF as the upstream regulator of circMBOAT2, which exhibited upregulation in NSCLC cells and tissues. Knockdown of CTCF reversed the promotional effect of CUMS on circMBOAT2 expression and tumor growth. Our findings provide evidence that CTCF mediates chronic stress in promoting of NSCLC progression through circMBOAT2. circMBOAT2 may serve as a potential biomarker and therapeutic target for NSCLC as well as the treatment of comorbid depression in NSCLC patients.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1721-1733"},"PeriodicalIF":4.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00830-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luisa Bisceglia, Federica Morani, Lara Guerrieri, Eric Santoni-Rugiu, Pınar Çakılkaya, Cristian Scatena, Rosa Scarpitta, Lars H. Engelholm, Niels Behrendt, Federica Gemignani, Stefano Landi
{"title":"BAG2, MAD2L1, and MDK are cancer-driver genes and candidate targets for novel therapies in malignant pleural mesothelioma","authors":"Luisa Bisceglia, Federica Morani, Lara Guerrieri, Eric Santoni-Rugiu, Pınar Çakılkaya, Cristian Scatena, Rosa Scarpitta, Lars H. Engelholm, Niels Behrendt, Federica Gemignani, Stefano Landi","doi":"10.1038/s41417-024-00805-4","DOIUrl":"10.1038/s41417-024-00805-4","url":null,"abstract":"Malignant pleural mesothelioma (MPM) is an aggressive cancer with a poor prognosis and the identification of novel druggable targets is urgently needed. In previous work, we identified 15 deregulated genes highly expressed in MPM tissues and correlated with a poor prognosis. Here, we validated these findings on an independent dataset of 211 MPM patients (EGA, EGAD00001001915) and on a panel of MPM cell lines. Furthermore, we carried out in vitro gene silencing followed by proliferation, cytotoxicity, caspase, and migration assays to define whether these targets could be cancer-driver genes. We ended up with three novel candidates (i.e., BAG2, MAD2L1, and MDK), whose encoded proteins could be exploited as druggable targets. Moreover, of novelty, immunohistochemistry analysis on tissues revealed that the overexpression of BAG2 and MAD2L1 could differentiate MPM from RMP patients. Furthermore, when we tested Neratinib (an inhibitor of MAD2L1) and iMDK (an inhibitor of MDK) we found that they are effective on MPM cells, in part phenocopying the effects of MAD2L1 and MDK gene silencing. In summary, in the present work, we report that BAG2, MAD2L1, and MDK are bona fide cancer-driver genes for MPM worth of further studies.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1-13"},"PeriodicalIF":4.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00805-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hua Jin, Ruoyu Meng, Cong Shan Li, Seong-Hun Kim, Ok Hee Chai, Young-Hoon Lee, Byung-Hyun Park, Ju-Seog Lee, Soo Mi Kim
{"title":"HN1-mediated activation of lipogenesis through Akt-SREBP signaling promotes hepatocellular carcinoma cell proliferation and metastasis","authors":"Hua Jin, Ruoyu Meng, Cong Shan Li, Seong-Hun Kim, Ok Hee Chai, Young-Hoon Lee, Byung-Hyun Park, Ju-Seog Lee, Soo Mi Kim","doi":"10.1038/s41417-024-00827-y","DOIUrl":"10.1038/s41417-024-00827-y","url":null,"abstract":"Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related deaths worldwide, with more than 800,000 deaths each year, and its 5-year survival rate is less than 12%. The role of the HN1 gene in HCC has remained elusive, despite its upregulation in various cancer types. In our investigation, we identified HN1’s heightened expression in HCC tissues, which, upon overexpression, fosters cell proliferation, migration, and invasion, unveiling its role as an oncogene in HCC. In addition, silencing HN1 diminished the viability and metastasis of HCC cells, whereas HN1 overexpression stimulated their growth and invasion. Gene expression profiling revealed HN1 silencing downregulated 379 genes and upregulated 130 genes, and suppressive proteins associated with the lipogenic signaling pathway networks. Notably, suppressing HN1 markedly decreased the expression levels of SREBP1 and SREBP2, whereas elevating HN1 had the converse effect. This dual modulation of HN1 affected lipid formation, hindering it upon HN1 silencing and promoting it upon HN1 overexpression. Moreover, HN1 triggers the Akt pathway, fostering tumorigenesis via SREBP1-mediated lipogenesis and silencing HN1 effectively curbed HCC tumor growth in mouse xenograft models by deactivating SREBP-1, emphasizing the potential of HN1 as a therapeutic target, impacting both external and internal factors, it holds promise as an effective therapeutic strategy for HCC.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1669-1687"},"PeriodicalIF":4.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dhirendra Pratap Singh, Rashmi Pathak, Naveen Chintalaramulu, Abhishek Pandit, Avinash Kumar, Philip J. Ebenezer, Sanjay Kumar, Alexander Duplooy, Mary Evelyn White, Nithya Jambunathan, Rohan Dharmakumar, Joseph Francis
{"title":"Caveolin-1 knockout mitigates breast cancer metastasis to the lungs via integrin α3 dysregulation in 4T1-induced syngeneic breast cancer model","authors":"Dhirendra Pratap Singh, Rashmi Pathak, Naveen Chintalaramulu, Abhishek Pandit, Avinash Kumar, Philip J. Ebenezer, Sanjay Kumar, Alexander Duplooy, Mary Evelyn White, Nithya Jambunathan, Rohan Dharmakumar, Joseph Francis","doi":"10.1038/s41417-024-00821-4","DOIUrl":"10.1038/s41417-024-00821-4","url":null,"abstract":"Caveolin-1 (Cav-1) is a critical lipid raft protein playing dual roles as both a tumor suppressor and promoter. While its role in tumorigenesis, progression, and metastasis has been recognized, the explicit contribution of Cav-1 to the onset of lung metastasis from primary breast malignancies remains unclear. Here, we present the first evidence that Cav-1 knockout in mammary epithelial cells significantly reduces lung metastasis in syngeneic breast cancer mouse models. In vitro, Cav-1 knockout in 4T1 cells suppressed extracellular vesicle secretion, cellular motility, and MMP secretion compared to controls. Complementing this, in vivo analyses demonstrated a marked reduction in lung metastatic foci in mice injected with Cav-1 knockout 4T1 cells as compared to wild-type cells, which was further corroborated by mRNA profiling of the primary tumor. We identified 21 epithelial cell migration genes exhibiting varied expression in tumors derived from Cav-1 knockout and wild-type 4T1 cells. Correlation analysis and immunoblotting further revealed that Cav-1 might regulate metastasis via integrin α3 (ITGα3). In silico protein docking predicted an interaction between Cav-1 and ITGα3, which was confirmed by co-immunoprecipitation. Furthermore, Cav-1 and ITGα3 knockdown corroborated its role in metastasis in the cell migration assay.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1658-1668"},"PeriodicalIF":4.8,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00821-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142145275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ricardo Blázquez-Encinas, Emilia Alors-Pérez, María Trinidad Moreno-Montilla, Víctor García-Vioque, Marina Esther Sánchez-Frías, Andrea Mafficini, Juan L. López-Cánovas, Corinne Bousquet, Manuel D. Gahete, Rita T. Lawlor, Raúl M. Luque, Aldo Scarpa, Álvaro Arjona‐Sánchez, Sergio Pedraza-Arevalo, Alejandro Ibáñez-Costa, Justo P. Castaño
{"title":"The Exon Junction Complex component EIF4A3 plays a splicing-linked oncogenic role in pancreatic ductal adenocarcinoma","authors":"Ricardo Blázquez-Encinas, Emilia Alors-Pérez, María Trinidad Moreno-Montilla, Víctor García-Vioque, Marina Esther Sánchez-Frías, Andrea Mafficini, Juan L. López-Cánovas, Corinne Bousquet, Manuel D. Gahete, Rita T. Lawlor, Raúl M. Luque, Aldo Scarpa, Álvaro Arjona‐Sánchez, Sergio Pedraza-Arevalo, Alejandro Ibáñez-Costa, Justo P. Castaño","doi":"10.1038/s41417-024-00814-3","DOIUrl":"10.1038/s41417-024-00814-3","url":null,"abstract":"Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers, underscoring the urgent need for in-depth biological research. The phenomenon of alternative RNA splicing dysregulation is a common hallmark in cancer, including PDAC, presenting new avenues for understanding and developing diagnostic and therapeutic tools. Our research focuses on EIF4A3, a core component of the Exon Junction Complex intimately linked to RNA splicing, and its role in PDAC. EIF4A3 is overexpressed in PDAC tissue and associated to clinical parameters of malignancy and poorer patient survival. Mechanistically, exploration of PDAC RNA-seq data unveiled the link of EIF4A3 to diverse malignancy processes, consistent with its association to key molecular pathways. EIF4A3 targeting in vitro decreased essential functional tumor features such as proliferation, migration, colony formation and sphere formation, while its in vivo targeting reduced tumor growth. EIF4A3 silencing in PDAC cell lines severely altered its transcriptional and spliceosomic landscapes, as shown by RNA-seq analyses, suggesting a role for EIF4A3 in maintaining RNA homeostasis. Our results indicate that EIF4A3 dysregulation in PDAC has a pleiotropic regulatory role on RNA biology, influencing key cellular functions. This paves the way to explore its potential as novel biomarker and actionable target candidate for this lethal cancer.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1646-1657"},"PeriodicalIF":4.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00814-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}