Cancer gene therapy最新文献

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Long noncoding RNA EPCART regulates translation through PI3K/AKT/mTOR pathway and PDCD4 in prostate cancer 长非编码 RNA EPCART 通过 PI3K/AKT/mTOR 通路和 PDCD4 调节前列腺癌的翻译。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-15 DOI: 10.1038/s41417-024-00822-3
Annika Kohvakka, Mina Sattari, Janika Nättinen, Ulla Aapola, Pavlína Gregorová, Teuvo L. J. Tammela, Hannu Uusitalo, L. Peter Sarin, Tapio Visakorpi, Leena Latonen
{"title":"Long noncoding RNA EPCART regulates translation through PI3K/AKT/mTOR pathway and PDCD4 in prostate cancer","authors":"Annika Kohvakka, Mina Sattari, Janika Nättinen, Ulla Aapola, Pavlína Gregorová, Teuvo L. J. Tammela, Hannu Uusitalo, L. Peter Sarin, Tapio Visakorpi, Leena Latonen","doi":"10.1038/s41417-024-00822-3","DOIUrl":"10.1038/s41417-024-00822-3","url":null,"abstract":"While hundreds of cancer-associated long noncoding RNAs (lncRNAs) have been discovered, their functional role in cancer cells is still largely a mystery. An increasing number of lncRNAs are recognized to function in the cytoplasm, e.g., as modulators of translation. Here, we investigated the detailed molecular identity and functional role of EPCART, a lncRNA we previously discovered to be a potential oncogene in prostate cancer (PCa). First, we interrogated the transcript structure of EPCART and then confirmed EPCART to be a non-peptide-coding lncRNA using in silico methods. Pathway analysis of differentially expressed protein-coding genes in EPCART knockout cells implied that EPCART modulates the translational machinery of PCa cells. EPCART was also largely located in the cytoplasm and at the sites of translation. With quantitative proteome analysis on EPCART knockout cells we discovered PDCD4, an inhibitor of protein translation, to be increased by EPCART reduction. Further studies indicated that the inhibitory effect of EPCART silencing on translation was mediated by reduced activation of AKT and inhibition of the mTORC1 pathway. Together, our findings identify EPCART as a translation-associated lncRNA that functions via modulation of the PI3K/AKT/mTORC1 pathway in PCa cells. Furthermore, we provide evidence for the prognostic potential of PDCD4 in PCa tumors in connection with EPCART.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1536-1546"},"PeriodicalIF":4.8,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00822-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141987437","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}
引用次数: 0
The splicing factor SF3B1 confers ferroptosis resistance and promotes lung adenocarcinoma progression via upregulation of SLC7A11 剪接因子SF3B1通过上调SLC7A11赋予铁变态反应抗性并促进肺腺癌的进展。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-10 DOI: 10.1038/s41417-024-00817-0
Yanlin Guo, Xiaohui Wang, Yu Du, Yixuan Zhao, Lvye Gao, Yanlong Hao, Dou Lv, Xuefei Feng, Yuanfang Zhai, Binbin Zou, Jinli Han, Enwei Xu, Yue Yang, Bin Yang, Yanfeng Xi, Ling Zhang
{"title":"The splicing factor SF3B1 confers ferroptosis resistance and promotes lung adenocarcinoma progression via upregulation of SLC7A11","authors":"Yanlin Guo, Xiaohui Wang, Yu Du, Yixuan Zhao, Lvye Gao, Yanlong Hao, Dou Lv, Xuefei Feng, Yuanfang Zhai, Binbin Zou, Jinli Han, Enwei Xu, Yue Yang, Bin Yang, Yanfeng Xi, Ling Zhang","doi":"10.1038/s41417-024-00817-0","DOIUrl":"10.1038/s41417-024-00817-0","url":null,"abstract":"This study aimed to investigate the expression of SF3B1 in non-small cell lung cancer, and its clinical significance, biological function, and molecular mechanisms. SF3B1 mRNA and protein levels were elevated in both lung squamous cell carcinoma and lung adenocarcinoma (LUAD) tissues based on TCGA data and immunohistochemistry. Notably, high SF3B1 expression in LUAD was significantly associated with increased lymph node metastasis. Functional experiments involving SF3B1 knockdown and overexpression demonstrated that SF3B1 facilitated the proliferation, invasion, and migration of LUAD cells. Additionally, the SF3B1 inhibitor pladienolide-B attenuated the aggressive behavior of LUAD cells both in vitro and in vivo. RNA sequencing analysis indicated that differentially expressed genes in the SF3B1 knockdown and SF3B1 inhibitor groups were enriched in ferroptosis-related pathways compared to their respective control groups. The antiferroptotic role of SF3B1 in LUAD cells was validated by detecting glutathione depletion, lipid peroxidation, and observing morphological changes using transmission electron microscopy. This process was confirmed to be independent of apoptosis and autophagy, as evidenced by the effects of the ferroptosis inducer erastin, the apoptosis inhibitor Z-VAD-FMK, and the autophagy inhibitor 3-methyladenine. Rescue experiments indicated that the antiferroptotic role of SF3B1 in LUAD is partially mediated by upregulating the expression of SLC7A11.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1498-1510"},"PeriodicalIF":4.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141911867","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}
引用次数: 0
PHF10 inhibits gastric epithelium differentiation and induces gastric cancer carcinogenesis PHF10 可抑制胃上皮细胞分化并诱导胃癌发生。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-10 DOI: 10.1038/s41417-024-00820-5
Zhiyuan Fan, Wenjing Yan, Jianfang Li, Min Yan, Bingya Liu, Zhongyin Yang, Beiqin Yu
{"title":"PHF10 inhibits gastric epithelium differentiation and induces gastric cancer carcinogenesis","authors":"Zhiyuan Fan, Wenjing Yan, Jianfang Li, Min Yan, Bingya Liu, Zhongyin Yang, Beiqin Yu","doi":"10.1038/s41417-024-00820-5","DOIUrl":"10.1038/s41417-024-00820-5","url":null,"abstract":"Gastric cancer (GC) is characterized with differentiation disorders, the precise mechanisms of which remain unknown. Our previous study showed that PHF10 exhibits oncogenic properties in GC, with its histological presentation indicating a potential role in the modulation of differentiation disorders in GC. This study reveals a significant upregulation of PHF10 in GC tissues, showing a negative correlation with differentiation level. PHF10 was found to impede the differentiation of GC cells while promoting their stemness properties. This was attributed to the formation of a positive feedback loop between PHF10 and E2F1, resulting in dysregulated expression levels in GC. Additionally, PHF10 was found to mediate the transcriptional repression of the target gene DUSP5 in GC cells through the assembly of the SWI/SNF complex, leading to an elevation in pERK1/2 levels. In GC tissues, a negative association was noted between the expression of E2F1 or PHF10 and DUSP5, whereas a positive correlation was observed between the expression of E2F1 or PHF10 and pERK1/2. Additional rescue experiments confirmed that the inhibitory effect on differentiation of GC cells by PHF10 is dependent on the DUSP5-pERK1/2 axis. The signaling cascade involving E2F1-PHF10-DUSP5-pERK1/2 was identified as an important player in regulating differentiation and stemness in GC cells. PHF10 emerges as a promising target for differentiation induction therapy in GC.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1511-1524"},"PeriodicalIF":4.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00820-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141911865","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}
引用次数: 0
UGT1A7 altered HER2-positive breast cancer response to trastuzumab by affecting epithelial-to-mesenchymal transition: A potential biomarker to identify patients resistant to trastuzumab treatment UGT1A7通过影响上皮细胞向间质转化改变了HER2阳性乳腺癌对曲妥珠单抗的反应:识别曲妥珠单抗耐药患者的潜在生物标记物。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-10 DOI: 10.1038/s41417-024-00819-y
Cong Wang, Chenguang Bai, Zhe Zhang, Hao Zhou, Huanyao Gao, Siwei Wang, Yuan Yuan
{"title":"UGT1A7 altered HER2-positive breast cancer response to trastuzumab by affecting epithelial-to-mesenchymal transition: A potential biomarker to identify patients resistant to trastuzumab treatment","authors":"Cong Wang, Chenguang Bai, Zhe Zhang, Hao Zhou, Huanyao Gao, Siwei Wang, Yuan Yuan","doi":"10.1038/s41417-024-00819-y","DOIUrl":"10.1038/s41417-024-00819-y","url":null,"abstract":"HER2-positive (HER2+) breast cancer accounts for 20–30% of all breast cancers. Although trastuzumab has significantly improved the survival of patients with HER2+ breast cancer, more than 70% of patients develop drug resistance within one year of treatment. Differential-gene-expression analysis of trastuzumab-sensitive and resistant HER2+ breast cancer cell lines from GSE15043 was performed to identify the biomarkers associated with trastuzumab resistance. Differential biomarker expression was confirmed in FFPE tissues collected from clinical HER2+ breast cancer tumor samples that were sensitive or resistant to trastuzumab treatment. UGT1A7, a member of the uronic acid transferase family, was associated with trastuzumab resistance. UGT1A7 expression was downregulated in trastuzumab-resistant tumor tissues and in a cell line that developed trastuzumab resistance (BT474TR). Overexpressing UGT1A7 in BT474TR restored their sensitivity to trastuzumab treatment, whereas downregulating UGT1A7 expression in parental cells led to trastuzumab resistance. Importantly, UGT1A7 localized to the endoplasmic reticulum and altered stress responses. Furthermore, downregulating UGT1A7 expression promoted epithelial-to-mesenchymal transition (EMT) by affecting TWIST, SNAIL, and GRP78 expression and the AMP-activated protein kinase signaling pathway, thus contributing to trastuzumab resistance. This study demonstrated the important role and novel mechanisms of UGT1A7 in tumor responses to trastuzumab. Low UGT1A7 expression plays an important role in EMT and contributes to trastuzumab resistance. UGT1A7 has the potential to be developed as a biomarker for identifying patients who are resistant to trastuzumab treatment.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1525-1535"},"PeriodicalIF":4.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141911868","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}
引用次数: 0
Polθ: emerging synthetic lethal partner in homologous recombination-deficient tumors Polθ:同源重组缺陷肿瘤中新出现的合成致死伙伴。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-09 DOI: 10.1038/s41417-024-00815-2
Tancredi Didier Bazan Russo, Clarissa Mujacic, Emilia Di Giovanni, Maria Concetta Vitale, Carla Ferrante Bannera, Ugo Randazzo, Silvia Contino, Marco Bono, Valerio Gristina, Antonio Galvano, Alessandro Perez, Giuseppe Badalamenti, Antonio Russo, Viviana Bazan, Lorena Incorvaia
{"title":"Polθ: emerging synthetic lethal partner in homologous recombination-deficient tumors","authors":"Tancredi Didier Bazan Russo, Clarissa Mujacic, Emilia Di Giovanni, Maria Concetta Vitale, Carla Ferrante Bannera, Ugo Randazzo, Silvia Contino, Marco Bono, Valerio Gristina, Antonio Galvano, Alessandro Perez, Giuseppe Badalamenti, Antonio Russo, Viviana Bazan, Lorena Incorvaia","doi":"10.1038/s41417-024-00815-2","DOIUrl":"10.1038/s41417-024-00815-2","url":null,"abstract":"The most remarkable finding in synthetic lethality (SL) is the hypersensitivity to PARP inhibitors (PARPis) of the tumors harboring defects in genes involved in homologous repair (HR) such as BRCA1/2. Despite initial responsiveness to PARPi, the penetrance of the synthetic lethal interactions between BRCA1/2 genes and PARPi is incomplete. Thus, a significant proportion of HR-defective tumors experience intrinsic or acquired resistance, representing a key challenge of clinical research. An expanded concept of SL is opening new ways and includes novel forms of genetic interactions, investigating not only traditional SL of pairs genes but also SL between biological pathways that regulate the same essential survival cell function. In this context, recent research showed that HR and theta-mediated end-joining (TMEJ) pathways exhibit SL. DNA polymerase theta (Polθ) is encoded by the POLQ gene and is a key component of the TMEJ, an essential backup pathway, intrinsically mutagenic, to repair resected double-strand breaks (DSBs) when the non-homologous end joining (NHEJ) and HR are impaired. Polθ is broadly expressed in normal tissues, overexpressed in several cancers, and typically associated with poor outcomes and shorter relapse-free survival. Notably, HR-deficient tumor cells present the characteristic mutational signatures of the error-prone TMEJ pathway. According to this observation, the loss of HR proteins, such as BRCA1 or BRCA2, contributes to increasing the TMEJ-specific genomic profile, suggesting synthetic lethal interactions between loss of the POLQ and HR genes, and resulting in the emerging interest for Polθ as a potential therapeutic target in BRCA1/2-associated tumors. This review summarizes the converging roles of the POLQ and HR genes in DNA DSB repair, the early-stage clinical trials using Polθ inhibitor to treat HR-defective tumors and to overcome BRCA-reversion mutations responsible for therapeutic resistance, and the novel pleiotropic effects of Polθ, paving the way for the development of unexplored synthetic lethality strategies.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 11","pages":"1619-1631"},"PeriodicalIF":4.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00815-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141911866","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}
引用次数: 0
Arsenic trioxide and p97 inhibitor synergize against acute myeloid leukemia by targeting nascent polypeptides and activating the ZAKα–JNK pathway 三氧化二砷和 p97 抑制剂通过靶向新生多肽和激活 ZAKα-JNK 通路对急性髓性白血病产生协同作用。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-08-09 DOI: 10.1038/s41417-024-00818-z
Shufeng Xie, Hui Liu, Shouhai Zhu, Zhihong Chen, Ruiheng Wang, Wenjie Zhang, Huajian Xian, Rufang Xiang, Xiaoli Xia, Yong Sun, Jinlan Long, Yuanli Wang, Minghui Wang, Yixin Wang, Yaoyifu Yu, Zixuan Huang, Chaoqun Lu, Zhenshu Xu, Han Liu
{"title":"Arsenic trioxide and p97 inhibitor synergize against acute myeloid leukemia by targeting nascent polypeptides and activating the ZAKα–JNK pathway","authors":"Shufeng Xie, Hui Liu, Shouhai Zhu, Zhihong Chen, Ruiheng Wang, Wenjie Zhang, Huajian Xian, Rufang Xiang, Xiaoli Xia, Yong Sun, Jinlan Long, Yuanli Wang, Minghui Wang, Yixin Wang, Yaoyifu Yu, Zixuan Huang, Chaoqun Lu, Zhenshu Xu, Han Liu","doi":"10.1038/s41417-024-00818-z","DOIUrl":"10.1038/s41417-024-00818-z","url":null,"abstract":"Arsenic trioxide (ATO) has exhibited remarkable efficacy in treating acute promyelocytic leukemia (APL), primarily through promoting the degradation of the PML-RARα fusion protein. However, ATO alone fails to confer any survival benefit to non-APL acute myeloid leukemia (AML) patients and exhibits limited efficacy when used in combination with other agents. Here, we explored the general toxicity mechanisms of ATO in APL and potential drugs that could be combined with ATO to exhibit synergistic lethal effects on other AML. We demonstrated that PML-RARα degradation and ROS upregulation were insufficient to cause APL cell death. Based on the protein synthesis of different AML cells and their sensitivity to ATO, we established a correlation between ATO-induced cell death and protein synthesis. Our findings indicated that ATO induced cell death by damaging nascent polypeptides and causing ribosome stalling, accompanied by the activation of the ZAKα-JNK pathway. Furthermore, ATO-induced stress activated the GCN2–ATF4 pathway, and ribosome-associated quality control cleared damaged proteins with the assistance of p97. Importantly, our data revealed that inhibiting p97 enhanced the effectiveness of ATO in killing AML cells. These explorations paved the way for identifying optimal synthetic lethal drugs to enhance ATO treatment on non-APL AML.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1486-1497"},"PeriodicalIF":4.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00818-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141911864","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}
引用次数: 0
Switching anti-EGFR antibody re-sensitizes head and neck cancer patient following acquired resistance to cetuximab 转换抗表皮生长因子受体(EGFR)抗体可使对西妥昔单抗产生耐药性的头颈癌患者重新获得敏感性。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-07-31 DOI: 10.1038/s41417-024-00812-5
Arun Khattri, Sheikh Nizamuddin, Nikhil Agrawal, Sandeep Kaushik, Sara Kochanny, Daniel Ginat, Mark W. Lingen, Elizabeth Blair, Tanguy Y. Seiwert
{"title":"Switching anti-EGFR antibody re-sensitizes head and neck cancer patient following acquired resistance to cetuximab","authors":"Arun Khattri, Sheikh Nizamuddin, Nikhil Agrawal, Sandeep Kaushik, Sara Kochanny, Daniel Ginat, Mark W. Lingen, Elizabeth Blair, Tanguy Y. Seiwert","doi":"10.1038/s41417-024-00812-5","DOIUrl":"10.1038/s41417-024-00812-5","url":null,"abstract":"Cetuximab induces responses in about 13% of head and neck squamous cell carcinomas (HNSCC). We describe the molecular mechanism of acquired resistance to cetuximab, which could be overcome by switching to a different anti-EGFR antibody. Biopsies were collected at three different time points: before the start of cetuximab (PRE-cetux), at acquired resistance to cetuximab (AR-cetux), and at acquired resistance to duligotuzumab (AR-duligo). Biopsies were analyzed using tumor and normal whole-exome sequencing, RNASeq, and targeted panel sequencing with ultra-deep coverage to generate differential mutation and expression profiles. WES and targeted sequencing analysis identified an EGFR p.G465R extracellular domain mutation in AR-cetux biopsy. Furthermore, RNASeq confirmed the expression of this mutation in the tumor tissue. This mutation prevented the binding of cetuximab to EGFR and was not present in PRE-cetux and AR-duligo biopsies, suggesting a potential mechanism of acquired resistance to cetuximab. Molecular dynamic simulations confirmed that duligotuzumab effectively binds EGFR with a p.G465R mutation. Interestingly, the p.G465R mutation improved the stability of the duligotuzumab-EGFR complex as compared to the wild-type EGFR. This is the first report of an EGFR ECD mutation associated with acquired resistance to cetuximab, posing a need for further validation. We suggest appropriate serial mutational profiling to identify ECD mutations should be considered for select patients with initial cetuximab benefit.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1477-1485"},"PeriodicalIF":4.8,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00812-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141859083","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}
引用次数: 0
Rabenosyn-5 suppresses non-small cell lung cancer metastasis via inhibiting CDC42 activity Rabenosyn-5 通过抑制 CDC42 的活性抑制非小细胞肺癌的转移。
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-07-29 DOI: 10.1038/s41417-024-00813-4
Xiong Guo, Bin Mu, Lin Zhu, Yanli Zhuo, Ping Mu, Fu Ren, Fangjin Lu
{"title":"Rabenosyn-5 suppresses non-small cell lung cancer metastasis via inhibiting CDC42 activity","authors":"Xiong Guo, Bin Mu, Lin Zhu, Yanli Zhuo, Ping Mu, Fu Ren, Fangjin Lu","doi":"10.1038/s41417-024-00813-4","DOIUrl":"10.1038/s41417-024-00813-4","url":null,"abstract":"Metastasis, the primary cause of death in lung cancer patients, is facilitated by cytoskeleton remodeling, which plays a crucial role in cancer cell migration and invasion. However, the precise regulatory mechanisms of intracellular trafficking proteins involved in cytoskeleton remodeling remain unclear. In this study, we have identified Rabenosyn-5 (Rbsn) as an inhibitor of filopodia formation and lung cancer metastasis. Mechanistically, Rbsn interacts with CDC42 and functions as a GTPase activating protein (GAP), thereby inhibiting CDC42 activity and subsequent filopodia formation. Furthermore, we have discovered that Akt phosphorylates Rbsn at the Thr253 site, and this phosphorylation negates the inhibitory effect of Rbsn on CDC42 activity. Additionally, our analysis reveals that Rbsn expression is significantly downregulated in lung cancer, and this decrease is associated with a worse prognosis. These findings provide strong evidence supporting the role of Rbsn in suppressing lung cancer progression through the inhibition of metastasis.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 10","pages":"1465-1476"},"PeriodicalIF":4.8,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00813-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141792024","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}
引用次数: 0
ZDHHC1 downregulates LIPG and inhibits colorectal cancer growth via IGF2BP1 Palmitoylation ZDHHC1 通过 IGF2BP1 棕榈酰化作用下调 LIPG 并抑制结直肠癌生长
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-07-28 DOI: 10.1038/s41417-024-00808-1
Qun Zhang, Zhouyuan Du, Wei Zhou, Wei Li, Qinglin Yang, Haixin Yu, Tao Liu
{"title":"ZDHHC1 downregulates LIPG and inhibits colorectal cancer growth via IGF2BP1 Palmitoylation","authors":"Qun Zhang, Zhouyuan Du, Wei Zhou, Wei Li, Qinglin Yang, Haixin Yu, Tao Liu","doi":"10.1038/s41417-024-00808-1","DOIUrl":"10.1038/s41417-024-00808-1","url":null,"abstract":"Alteration in lipid metabolism is recognized as a hallmark feature of colorectal cancer (CRC). Protein S-palmitoylation plays a critical role in many different cellular processes including protein-lipid interaction. Zinc Finger DHHC-Type Containing 1 (ZDHHC1, also known as ZNF377) belongs to the palmitoyl-transferase ZDHHC family, and is a potential tumor suppressor. However, our knowledge of the functional roles of ZDHHC1 in CRC is limited. We discovered that ZDHHC1 expression was downregulated in CRC tissues and that low levels of ZDHHC1 were associated with unfavorable prognosis. Functional studies showed that ZDHHC1 inhibited CRC cell proliferation and invasion in vitro and in vivo. We also found that lipase G (LIPG) is negatively regulated by ZDHHC1 and plays a key role in CRC cell growth through lipid storage. Additionally, we demonstrated that ZDHHC1 functions as a IGF2BP1-palmitoylating enzyme that induces S-palmitoylation at IGF2BP1-C337, which results in downregulated LIPG expression via m6A modification. Mechanistic investigations revealed that the ZDHHC1/IGF2BP1/LIPG signaling axis is associated with inhibition of CRC cell growth. Our study uncovers the potential role of ZDHHC1 in CRC, including inhibition of CRC growth by reducing the stability of LIPG mRNA in an m6A dependent-manner by palmitoylation of IGF2BP1.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 9","pages":"1427-1437"},"PeriodicalIF":4.8,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00808-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141771063","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}
引用次数: 0
The long-term effectiveness and mechanism of oncolytic virotherapy combined with anti-PD-L1 antibody in colorectal cancer patient 溶瘤病毒疗法联合抗PD-L1抗体对结直肠癌患者的长期疗效及机制研究
IF 4.8 3区 医学
Cancer gene therapy Pub Date : 2024-07-27 DOI: 10.1038/s41417-024-00807-2
Hangyu Zhang, Yiqing Ren, Feiyu Wang, Xiaoxuan Tu, Zhou Tong, Lulu Liu, Yi Zheng, Peng Zhao, Jinlin Cheng, Jianwen Li, Weijia Fang, Xia Liu
{"title":"The long-term effectiveness and mechanism of oncolytic virotherapy combined with anti-PD-L1 antibody in colorectal cancer patient","authors":"Hangyu Zhang, Yiqing Ren, Feiyu Wang, Xiaoxuan Tu, Zhou Tong, Lulu Liu, Yi Zheng, Peng Zhao, Jinlin Cheng, Jianwen Li, Weijia Fang, Xia Liu","doi":"10.1038/s41417-024-00807-2","DOIUrl":"10.1038/s41417-024-00807-2","url":null,"abstract":"Colorectal cancer (CRC) is known to be resistant to immunotherapy. In our phase-I clinical trial, one patient achieved a 313-day prolonged response during the combined treatment of oncolytic virotherapy and immunotherapy. To gain a deeper understanding of the potential molecular mechanisms, we performed a comprehensive multi-omics analysis on this patient and three non-responders. Our investigation unveiled that, initially, the tumor microenvironment (TME) of this responder presented minimal infiltration of T cells and natural killer cells, along with a relatively higher presence of macrophages compared to non-responders. Remarkably, during treatment, there was a progressive increase in CD4+ T cells, CD8+ T cells, and B cells in the responder’s tumor tissue. This was accompanied by a significant upregulation of transcription factors associated with T-cell activation and cytotoxicity, including GATA3, EOMES, and RUNX3. Furthermore, dynamic monitoring of peripheral blood samples from the responder revealed a rapid decrease in circulating tumor DNA (ctDNA), suggesting its potential as an early blood biomarker of treatment efficacy. Collectively, our findings demonstrate the effectiveness of combined oncolytic virotherapy and immunotherapy in certain CRC patients and provide molecular evidence that virotherapy can potentially transform a “cold” TME into a “hot” one, thereby improving sensitivity to immunotherapy.","PeriodicalId":9577,"journal":{"name":"Cancer gene therapy","volume":"31 9","pages":"1412-1426"},"PeriodicalIF":4.8,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41417-024-00807-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141771065","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}
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