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CBL0137 and NKG2A blockade: a novel immuno-oncology combination therapy for Myc-overexpressing triple-negative breast cancers. CBL0137和NKG2A阻断:一种治疗myc过表达三阴性乳腺癌的新型免疫肿瘤联合疗法
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-21 DOI: 10.1038/s41388-024-03259-y
Prahlad V Raninga, Bijun Zeng, Davide Moi, Ethan Trethowan, Federica Saletta, Pooja Venkat, Chelsea Mayoh, Rochelle C J D'Souza, Bryan W Day, Tyler Shai-Hee, Orazio Vittorio, Roberta Mazzieri, Riccardo Dolcetti, Kum Kum Khanna
{"title":"CBL0137 and NKG2A blockade: a novel immuno-oncology combination therapy for Myc-overexpressing triple-negative breast cancers.","authors":"Prahlad V Raninga, Bijun Zeng, Davide Moi, Ethan Trethowan, Federica Saletta, Pooja Venkat, Chelsea Mayoh, Rochelle C J D'Souza, Bryan W Day, Tyler Shai-Hee, Orazio Vittorio, Roberta Mazzieri, Riccardo Dolcetti, Kum Kum Khanna","doi":"10.1038/s41388-024-03259-y","DOIUrl":"https://doi.org/10.1038/s41388-024-03259-y","url":null,"abstract":"<p><p>The MYC proto-oncogene is upregulated in >60% of triple-negative breast cancers (TNBCs), it can directly promote tumor cell proliferation, and its overexpression negatively regulates anti-tumor immune responses. For all these reasons, MYC has long been considered as a compelling therapeutic target. However, pharmacological inhibition of MYC function has proven difficult due to a lack of a drug-binding pocket. Here, we demonstrate that the potent abrogation of MYC gene transcription by CBL0137 induces immunogenic cell death and reduces proliferation in MYC-high but not in MYC-low TNBC in vitro. CBL0137 also significantly inhibited the in vivo growth of primary tumors in a human MYC-high TNBC xenograft model (MDA-MB-231). Moreover, CBL0137 inhibited the tumor growth of highly aggressive mouse 4T1.2 syngeneic TNBC model in immunocompetent mice by inhibiting the MYC pathway and inducing Type I interferon responses. Immune profiling of CBL0137-treated mice revealed significantly enhanced tumor-specific immune responses and increased proportions of tumor infiltrating effector CD8<sup>+</sup> T cells, CD4<sup>+</sup> T cells, and NK cells. CBL0137-induced immune activation also resulted in increased exhaustion of immune effector cells. In particular, NKG2A up-regulation on activated effector cells and of its ligand Qa-1<sup>b</sup> on tumors in vivo was identified as a possible immune evasive mechanism. Indeed, NKG2A blockade synergized with CBL0137 significantly inhibiting the in vivo growth of 4T1.2 tumors. Collectively, our findings provide the rationale supporting the exploitation of CBL0137-induced anti-tumor immunity in combination with NKG2A blockade to improve the treatment of TNBC expressing high levels of MYC.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142872600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A TBX2-driven signaling switch from androgen receptor to glucocorticoid receptor confers therapeutic resistance in prostate cancer. 从雄激素受体到糖皮质激素受体的tbx2驱动的信号转换赋予前列腺癌的治疗抗性。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-20 DOI: 10.1038/s41388-024-03252-5
Sayanika Dutta, Hamed Khedmatgozar, Girijesh Kumar Patel, Daniel Latour, Jonathan Welsh, Mainak Mustafi, Antonina Mitrofanova, Manisha Tripathi, Srinivas Nandana
{"title":"A TBX2-driven signaling switch from androgen receptor to glucocorticoid receptor confers therapeutic resistance in prostate cancer.","authors":"Sayanika Dutta, Hamed Khedmatgozar, Girijesh Kumar Patel, Daniel Latour, Jonathan Welsh, Mainak Mustafi, Antonina Mitrofanova, Manisha Tripathi, Srinivas Nandana","doi":"10.1038/s41388-024-03252-5","DOIUrl":"https://doi.org/10.1038/s41388-024-03252-5","url":null,"abstract":"<p><p>Recent studies suggest that glucocorticoid receptor (GR) activation can cause enzalutamide resistance in advanced prostate cancer (PCa) via functional bypass of androgen receptor (AR) signaling. However, the specific molecular mechanism(s) driving this process remain unknown. We have previously reported that the transcription factor TBX2 is over-expressed in castrate-resistant prostate cancer (CRPC). In this study, using human PCa and CRPC cell line models, we demonstrate that TBX2 downregulates AR and upregulates GR through direct transcriptional regulation. TBX2 also activated the GR via TBX2-GR protein-protein interactions. Together, TBX2-driven repression of AR and activation of GR resulted in enzalutamide resistance. Our laboratory findings are supported by clinical samples, which show a similar and consistent pattern of transcriptional activity among TBX2, AR and GR across patient cohorts. Notably, we report that SP2509, an allosteric inhibitor of the demethylase-independent function of LSD1 (a TBX2-interacting protein in the COREST complex) disrupts both TBX2-LSD1 and TBX2-GR protein-protein interactions, revealing a unique mode of SP2509 action in CRPC. Taken together, our study identifies the TBX2-driven AR- to GR- signaling switch as a molecular mechanism underlying enzalutamide resistance and provides key insights into a potential therapeutic approach for targeting this switch by disrupting TBX2-GR and TBX2-LSD1 protein-protein interactions.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142865047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
PRMT5-regulated splicing of DNA repair genes drives chemoresistance in breast cancer stem cells. prmt5调控的DNA修复基因剪接驱动乳腺癌干细胞的化疗耐药。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-18 DOI: 10.1038/s41388-024-03264-1
Matthew S Gillespie, Kelly Chiang, Gemma L Regan-Mochrie, Soo-Youn Choi, Ciara M Ward, Debashish Sahay, Paloma Garcia, Roland Arnold, Clare C Davies
{"title":"PRMT5-regulated splicing of DNA repair genes drives chemoresistance in breast cancer stem cells.","authors":"Matthew S Gillespie, Kelly Chiang, Gemma L Regan-Mochrie, Soo-Youn Choi, Ciara M Ward, Debashish Sahay, Paloma Garcia, Roland Arnold, Clare C Davies","doi":"10.1038/s41388-024-03264-1","DOIUrl":"https://doi.org/10.1038/s41388-024-03264-1","url":null,"abstract":"<p><p>Breast cancer stem cells (BCSCs) are a rare cell population that is responsible for tumour initiation, metastasis and chemoresistance. Despite this, the mechanism by which BCSCs withstand genotoxic stress is largely unknown. Here, we uncover a pivotal role for the arginine methyltransferase PRMT5 in mediating BCSC chemoresistance by modulating DNA repair efficiency. Mechanistically, we identify PRMT5 as a major regulator of DNA damage response (DDR) gene splicing in BCSCs, particularly those integral to the Fanconi Anaemia and homologous recombination pathways, with PRMT5 inhibition synergising with chemotherapy to promote BCSC apoptosis. A comparison of BCSCs and their bulk cell progeny identified some shared (ATM, DDX11, EXO1, FAN1, SLX4) but many unique (ATR, RAD17, RAD51D, RUVBL1) PRMT5-dependent alternative DDR splicing events. Surprisingly, these skipped exons and retained intron events rarely lead to substantial gene expression repression, suggesting that PRMT5 inhibition predominantly results in nuclear detention of intron-containing transcripts and the production of non-canonical isoforms with compromised protein function. Since many genes within the same DDR pathway undergo deregulated splicing, this study thus reveals additional points of vulnerability and alternative combination drug strategies that could improve the therapeutic efficacy of PRMT5 inhibitors to promote BCSC eradication.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142854721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Identification of novel germline mutations in FUT7 and EXT1 linked with hereditary multiple exostoses. 鉴定出与遗传性多发性骨质疏松症有关的 FUT7 和 EXT1 基因突变。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-17 DOI: 10.1038/s41388-024-03254-3
Wan Peng, Gao-Fei Li, Guo-Wang Lin, Xi-Xi Cheng, Xiao-Yu Zuo, Qiao-Hong Lin, Shu-Qiang Liu, De-Jun Li, Dao-Chao Lin, Jun-Qiang Yin, Chun-Ling Luo, Yi-Yue Zhang, Xian-Biao Xie, Jin-Xin Bei
{"title":"Identification of novel germline mutations in FUT7 and EXT1 linked with hereditary multiple exostoses.","authors":"Wan Peng, Gao-Fei Li, Guo-Wang Lin, Xi-Xi Cheng, Xiao-Yu Zuo, Qiao-Hong Lin, Shu-Qiang Liu, De-Jun Li, Dao-Chao Lin, Jun-Qiang Yin, Chun-Ling Luo, Yi-Yue Zhang, Xian-Biao Xie, Jin-Xin Bei","doi":"10.1038/s41388-024-03254-3","DOIUrl":"https://doi.org/10.1038/s41388-024-03254-3","url":null,"abstract":"<p><p>Hereditary multiple exostoses (HME) is an autosomal dominant skeletal disorder primarily linked with mutations in Exostosin-1 (EXT1) and Exostosin-2 (EXT2) genes. However, not all HME cases can be explained by these mutations, and its pathogenic mechanisms are not fully understood. Herein, utilizing whole-exome sequencing and genetic screening with a family trio design, we identify two novel rare mutations co-segregating with HME in a Chinese family, including a nonsense mutation (c.204G>A, p.Trp68*) in EXT1 and a missense mutation (c.893T>G, p.Phe298Cys) in FUT7. Functional assays reveal that the FUT7 mutation affects the cellular localization of FUT7 protein and regulates cell proliferation. Notably, the simultaneous loss of fut7 and ext1 in a zebrafish model results in severe chondrodysplasia, indicating a functional link between FUT7 and EXT1 in chondrocyte regulation. Additionally, we unveil that FUT7 p.Phe298Cys reduces EXT1 expression through IL6/STAT3/SLUG axis at the transcription level and through ubiquitination-related proteasomal degradation at the protein level. Together, our findings not only identify novel germline mutations in FUT7 and EXT1 genes, but also highlight the critical interaction between these genes, suggesting a potential 'second-hit' mechanism over EXT1 mutations in HME pathogenesis. This insight enhances our understanding of the mechanisms underlying HME and opens new avenues for potential therapeutic interventions.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142847081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Mitochondrial unfolded protein response-dependent β-catenin signaling promotes neuroendocrine prostate cancer. 线粒体未折叠蛋白反应依赖的β-catenin信号促进神经内分泌性前列腺癌的发生。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-17 DOI: 10.1038/s41388-024-03261-4
Jordan Alyse Woytash, Rahul Kumar, Ajay K Chaudhary, Cullan Donnelly, Adam Wojtulski, Murali Bethu, Jianmin Wang, Joseph Spernyak, Peter Bross, Neelu Yadav, Joseph R Inigo, Dhyan Chandra
{"title":"Mitochondrial unfolded protein response-dependent β-catenin signaling promotes neuroendocrine prostate cancer.","authors":"Jordan Alyse Woytash, Rahul Kumar, Ajay K Chaudhary, Cullan Donnelly, Adam Wojtulski, Murali Bethu, Jianmin Wang, Joseph Spernyak, Peter Bross, Neelu Yadav, Joseph R Inigo, Dhyan Chandra","doi":"10.1038/s41388-024-03261-4","DOIUrl":"https://doi.org/10.1038/s41388-024-03261-4","url":null,"abstract":"<p><p>The mitochondrial unfolded protein response (UPR<sup>mt</sup>) maintains mitochondrial quality control and proteostasis under stress conditions. However, the role of UPR<sup>mt</sup> in aggressive and resistant prostate cancer is not clearly defined. We show that castration-resistant neuroendocrine prostate cancer (CRPC-NE) harbored highly dysfunctional oxidative phosphorylation (OXPHOS) Complexes. However, biochemical and protein analyses of CRPC-NE tumors showed upregulation of nuclear-encoded OXPHOS proteins and UPR<sup>mt</sup> in this lethal subset of prostate cancer suggestive of compensatory upregulation of stress signaling. Genetic deletion and pharmacological inhibition of the main chaperone of UPR<sup>mt</sup> heat shock protein 60 (HSP60) reduced neuroendocrine prostate cancer (NEPC) growth in vivo as well as reverted NEPC cells to a more epithelial-like state. HSP60-dependent aggressive NEPC phenotypes was associated with upregulation of β-catenin signaling both in cancer cells and in vivo tumors. HSP60 expression rendered enrichment of aggressive prostate cancer signatures and metastatic potential were inhibited upon suppression of UPR<sup>mt</sup>. We discovered that UPR<sup>mt</sup> promoted OXPHOS functions including mitochondrial bioenergetics in CRPC-NE via regulation of β-catenin signaling. Mitochondrial biogenesis facilitated cisplatin resistance and inhibition of UPR<sup>mt</sup> resensitizes CRPC-NE cells to cisplatin. Together, our findings demonstrated that UPR<sup>mt</sup> promotes mitochondrial health via upregulating β-catenin signaling and UPR<sup>mt</sup> represents viable therapeutic target for NEPC.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142847084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Lack of dominant-negative activity for tumor-related ZNRF3 missense mutations at endogenous levels. 在内源性水平上缺乏与肿瘤相关的ZNRF3错义突变的显性负活性。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-14 DOI: 10.1038/s41388-024-03253-4
Shanshan Li, Jiahui Niu, Ruyi Zhang, Sanne Massaar, Madalena Neves Cabrita, Jenna van Merode, Nicky de Schipper, Lisa van de Kamp, Maikel P Peppelenbosch, Ron Smits
{"title":"Lack of dominant-negative activity for tumor-related ZNRF3 missense mutations at endogenous levels.","authors":"Shanshan Li, Jiahui Niu, Ruyi Zhang, Sanne Massaar, Madalena Neves Cabrita, Jenna van Merode, Nicky de Schipper, Lisa van de Kamp, Maikel P Peppelenbosch, Ron Smits","doi":"10.1038/s41388-024-03253-4","DOIUrl":"https://doi.org/10.1038/s41388-024-03253-4","url":null,"abstract":"<p><p>ZNRF3, a negative regulator of β-catenin signaling, removes Wnt receptors from the membrane. Currently, it is unknown which tumor-associated variants can be considered driver mutations and through which mechanisms they contribute to cancer. Here we show that all truncating mutations analyzed at endogenous levels exhibit loss-of-function, with longer variants retaining partial activity. Regarding missense mutations, we show that 27/82 ZNRF3 variants in the RING and R-Spondin domain structures, lead to (partial) loss-of-function/hyperactivation. Mechanistically, defective R-Spondin domain variants appear to undergo endoplasmic-reticulum-associated degradation due to protein misfolding, leading to reduced protein levels. They fail to reach the membrane correctly, which can be partially restored for several variants by culturing cells at 27 °C. Although RING and R-Spondin domain mutations in RNF43/ZNRF3 are often considered to possess dominant-negative oncogene-like activity in cancers, our findings challenge this notion. When representative variants are heterozygously introduced into endogenous ZNRF3, their impact on β-catenin signaling mirrors that of heterozygous knockout, suggesting that the supposed dominant-negative effect is non-existent. In other words, so-called \"hyperactivating\" ZNRF3/RNF43 mutations behave as classical loss-of-function mutations at endogenous levels.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Editorial Expression of Concern: DCAF12 promotes apoptosis and inhibits NF-κB activation by acting as an endogenous antagonist of IAPs. 编辑表达关注:DCAF12通过作为内源性IAPs拮抗剂促进细胞凋亡并抑制NF-κB活化。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-13 DOI: 10.1038/s41388-024-03258-z
Dongyue Jiao, Yingji Chen, Yalan Wang, Huiru Sun, Qing Shi, Liang Zhang, Xiaying Zhao, Yajuan Liu, Huiying He, Zeheng Lv, Chuan Liu, Pingzhao Zhang, Kun Gao, Yan Huang, Yao Li, Liang Li, Chenji Wang
{"title":"Editorial Expression of Concern: DCAF12 promotes apoptosis and inhibits NF-κB activation by acting as an endogenous antagonist of IAPs.","authors":"Dongyue Jiao, Yingji Chen, Yalan Wang, Huiru Sun, Qing Shi, Liang Zhang, Xiaying Zhao, Yajuan Liu, Huiying He, Zeheng Lv, Chuan Liu, Pingzhao Zhang, Kun Gao, Yan Huang, Yao Li, Liang Li, Chenji Wang","doi":"10.1038/s41388-024-03258-z","DOIUrl":"https://doi.org/10.1038/s41388-024-03258-z","url":null,"abstract":"","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Editorial Expression of Concern: Role of hypoxia inducible factor-1 alpha in modulation of apoptosis resistance. 社论表达关注:低氧诱导因子-1α在调节细胞凋亡抵抗中的作用。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-12 DOI: 10.1038/s41388-024-03257-0
M Kilic, H Kasperczyk, S Fulda, K-M Debatin
{"title":"Editorial Expression of Concern: Role of hypoxia inducible factor-1 alpha in modulation of apoptosis resistance.","authors":"M Kilic, H Kasperczyk, S Fulda, K-M Debatin","doi":"10.1038/s41388-024-03257-0","DOIUrl":"https://doi.org/10.1038/s41388-024-03257-0","url":null,"abstract":"","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Delactylase effects of SIRT1 on a positive feedback loop involving the H19-glycolysis-histone lactylation in gastric cancer. SIRT1在胃癌h19糖酵解-组蛋白乳酸化正反馈回路中的脱乙酰酶作用。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-11 DOI: 10.1038/s41388-024-03243-6
Shu Tsukihara, Yoshimitsu Akiyama, Shu Shimada, Megumi Hatano, Yosuke Igarashi, Tomohiko Taniai, Yoshiaki Tanji, Keita Kodera, Koya Yasukawa, Kentaro Umeura, Atsushi Kamachi, Atsushi Nara, Keisuke Okuno, Masanori Tokunaga, Hiroto Katoh, Shumpei Ishikawa, Toru Ikegami, Yusuke Kinugasa, Ken Eto, Shinji Tanaka
{"title":"Delactylase effects of SIRT1 on a positive feedback loop involving the H19-glycolysis-histone lactylation in gastric cancer.","authors":"Shu Tsukihara, Yoshimitsu Akiyama, Shu Shimada, Megumi Hatano, Yosuke Igarashi, Tomohiko Taniai, Yoshiaki Tanji, Keita Kodera, Koya Yasukawa, Kentaro Umeura, Atsushi Kamachi, Atsushi Nara, Keisuke Okuno, Masanori Tokunaga, Hiroto Katoh, Shumpei Ishikawa, Toru Ikegami, Yusuke Kinugasa, Ken Eto, Shinji Tanaka","doi":"10.1038/s41388-024-03243-6","DOIUrl":"https://doi.org/10.1038/s41388-024-03243-6","url":null,"abstract":"<p><p>Histone lactylation, a novel epigenetic modification, is regulated by the lactate produced by glycolysis. Glycolysis is activated in various cancers, including gastric cancer (GC). However, the molecular mechanism and clinical impact of histone lactylation in GC remain poorly understood. Here, we demonstrate that histone H3K18 lactylation (H3K18la) is elevated in GC, correlating with a worse prognosis. SIRT1 overexpression decreases H3K18la levels, whereas SIRT1 knockdown increases H3K18la levels in GC cells. RNA-seq analysis demonstrates that lncRNA H19 is markedly downregulated in GC cells with SIRT1 overexpression and those grown under glucose free condition, which confirmed decreased H3K18la levels at its promoter region. H19 knockdown decreased the expression levels of LDHA and H3K18la, and LDHA knockdown impaired H19 and H3K18la expression, suggesting an H19/glycolysis/H3K18la-positive feedback loop. Combined treatment with low doses of the SIRT1-specific activator SRT2104 and the LDHA inhibitor oxamate exerted significant antitumor effects on GC cells, with limited adverse effects on normal gastric cells. The SIRT1-weak/H3K18la-strong signature was found to be an independent prognostic factor in patients with GC. Therefore, SIRT1 acts as a histone delactylase for H3K18, and loss of SIRT1 triggers a positive feedback loop involving H19/glycolysis/H3K18la. Targeting this pathway serves as a novel therapeutic strategy for GC treatment.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Senescent lung fibroblasts in idiopathic pulmonary fibrosis facilitate non-small cell lung cancer progression by secreting exosomal MMP1. 特发性肺纤维化中衰老的肺成纤维细胞通过分泌外泌体MMP1促进非小细胞肺癌的进展。
IF 6.9 1区 医学
Oncogene Pub Date : 2024-12-11 DOI: 10.1038/s41388-024-03236-5
Yuqiong Lei, Cheng Zhong, Jingyuan Zhang, Qi Zheng, Yongle Xu, Zhoubin Li, Chenwen Huang, Tao Ren
{"title":"Senescent lung fibroblasts in idiopathic pulmonary fibrosis facilitate non-small cell lung cancer progression by secreting exosomal MMP1.","authors":"Yuqiong Lei, Cheng Zhong, Jingyuan Zhang, Qi Zheng, Yongle Xu, Zhoubin Li, Chenwen Huang, Tao Ren","doi":"10.1038/s41388-024-03236-5","DOIUrl":"https://doi.org/10.1038/s41388-024-03236-5","url":null,"abstract":"<p><p>Lung cancer is a fatal complication of idiopathic pulmonary fibrosis (IPF) with a poor prognosis. Current treatments are insufficient in improving the prognosis of lung cancer patients with comorbid idiopathic pulmonary fibrosis (IPF-LC). Senescent fibroblasts, as stromal cells in the tumor microenvironment, influence tumor progression via exosomes. With evidence that fibroblast senescence is an important mechanism of IPF, we investigated the impact of senescent IPF lung fibroblast (diseased human lung fibroblasts, DHLF)-derived exosomes on non-small cell lung cancer (NSCLC). We found DHLF expressed significant senescence markers, and promoted NSCLC proliferation, invasion, and epithelial-mesenchymal transition. Specifically, senescent DHLF showed strong secretion of exosomes, and these exosomes enhanced the proliferation and colony-forming ability of cancer cells. Proteomic analysis showed DHLF-derived exosomes exhibited upregulated senescence-associated secretory phenotype (SASP) factors, notably MMP1, which activates the surface receptor PAR1. Knocking down MMP1 or using PAR1 inhibitors reduced the tumor-promoting effects of DHLF-derived exosomes in vivo and in vitro. Mechanistically, MMP1 acted by activating the PI3K-AKT-mTOR pathway. In conclusion, our results suggest that exosomal MMP1 derived from senescent IPF fibroblasts promotes NSCLC proliferation and colony formation by targeting PAR1 and activating the PI3K-AKT-mTOR pathway. These findings provide a novel therapeutic approach for patients with IPF-LC.</p>","PeriodicalId":19524,"journal":{"name":"Oncogene","volume":" ","pages":""},"PeriodicalIF":6.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
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