Molecular Cancer最新文献

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Unraveling the key role of chromatin structure in cancer development through epigenetic landscape characterization of oral cancer 通过对口腔癌的表观遗传景观特征分析,揭示染色质结构在癌症发展中的关键作用
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-09-06 DOI: 10.1186/s12943-024-02100-0
Yue Xue, Lu Liu, Ye Zhang, Yueying He, Jingyao Wang, Zicheng Ma, Tie-jun Li, Jianyun Zhang, Yanyi Huang, Yi Qin Gao
{"title":"Unraveling the key role of chromatin structure in cancer development through epigenetic landscape characterization of oral cancer","authors":"Yue Xue, Lu Liu, Ye Zhang, Yueying He, Jingyao Wang, Zicheng Ma, Tie-jun Li, Jianyun Zhang, Yanyi Huang, Yi Qin Gao","doi":"10.1186/s12943-024-02100-0","DOIUrl":"https://doi.org/10.1186/s12943-024-02100-0","url":null,"abstract":"Epigenetic alterations, such as those in chromatin structure and DNA methylation, have been extensively studied in a number of tumor types. But oral cancer, particularly oral adenocarcinoma, has received far less attention. Here, we combined laser-capture microdissection and muti-omics mini-bulk sequencing to systematically characterize the epigenetic landscape of oral cancer, including chromatin architecture, DNA methylation, H3K27me3 modification, and gene expression. In carcinogenesis, tumor cells exhibit reorganized chromatin spatial structures, including compromised compartment structures and altered gene-gene interaction networks. Notably, some structural alterations are observed in phenotypically non-malignant paracancerous but not in normal cells. We developed transformer models to identify the cancer propensity of individual genome loci, thereby determining the carcinogenic status of each sample. Insights into cancer epigenetic landscapes provide evidence that chromatin reorganization is an important hallmark of oral cancer progression, which is also linked with genomic alterations and DNA methylation reprogramming. In particular, regions of frequent copy number alternations in cancer cells are associated with strong spatial insulation in both cancer and normal samples. Aberrant methylation reprogramming in oral squamous cell carcinomas is closely related to chromatin structure and H3K27me3 signals, which are further influenced by intrinsic sequence properties. Our findings indicate that structural changes are both significant and conserved in two distinct types of oral cancer, closely linked to transcriptomic alterations and cancer development. Notably, the structural changes remain markedly evident in oral adenocarcinoma despite the considerably lower incidence of genomic copy number alterations and lesser extent of methylation alterations compared to squamous cell carcinoma. We expect that the comprehensive analysis of epigenetic reprogramming of different types and subtypes of primary oral tumors can provide additional guidance to the design of novel detection and therapy for oral cancer.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"6 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142539","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
The prognostic effect of infiltrating immune cells is shaped by proximal M2 macrophages in lung adenocarcinoma 肺腺癌近端 M2 巨噬细胞决定浸润免疫细胞的预后效果
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-09-04 DOI: 10.1186/s12943-024-02080-1
Jian-Rong Li, Vikram Shaw, Yupei Lin, Xiang Wang, Muhammad Aminu, Yong Li, Jia Wu, Jianjun Zhang, Christopher I. Amos, Chao Cheng
{"title":"The prognostic effect of infiltrating immune cells is shaped by proximal M2 macrophages in lung adenocarcinoma","authors":"Jian-Rong Li, Vikram Shaw, Yupei Lin, Xiang Wang, Muhammad Aminu, Yong Li, Jia Wu, Jianjun Zhang, Christopher I. Amos, Chao Cheng","doi":"10.1186/s12943-024-02080-1","DOIUrl":"https://doi.org/10.1186/s12943-024-02080-1","url":null,"abstract":"The spatial arrangement of immune cells within the tumor microenvironment (TME) and their interactions play critical roles in the initiation and development of cancer. Several advanced technologies such as imaging mass cytometry (IMC) providing the immunological landscape of the TME with single-cell resolution. In this study, we develop a new method to quantify the spatial proximity between different cell types based on single-cell spatial data. Using this method on IMC data from 416 lung adenocarcinoma patients, we show that the proximity between different cell types is more correlated with patient prognosis compared to the traditional features such immune cell density and fractions. Consistent with previous reports, our results validate that proximity of T helper (Th) and B cells to cancer cells is associated with survival benefits. More importantly, we discover that the proximity of M2 macrophages to multiple immune cells is associated with poor prognosis. When Th/B cells are stratified into M2-distal and M2-proximal, the abundance of the former but not the latter category of Th/B cells is correlated with enhanced patient survival. Additionally, the abundance of M2-distal and M2-proximal cytotoxic T cells (Tc) is respectively associated with good and poor prognosis. Our results indicate that the prognostic effect of Th, Tc, and B cells in the tumor microenvironment is modulated by the nearby M2 macrophages. The proposed new method proposed can be readily applied to all single-cell spatial data for revealing functional impact of immune cell interactions.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"102 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130688","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
Multi-omics and clustering analyses reveal the mechanisms underlying unmet needs for patients with lung adenocarcinoma and identify potential therapeutic targets. 多组学和聚类分析揭示了肺腺癌患者未满足需求的内在机制,并确定了潜在的治疗靶点。
IF 27.7 1区 医学
Molecular Cancer Pub Date : 2024-09-02 DOI: 10.1186/s12943-024-02093-w
Ken Asada, Syuzo Kaneko, Ken Takasawa, Kouya Shiraishi, Norio Shinkai, Yoko Shimada, Satoshi Takahashi, Hidenori Machino, Kazuma Kobayashi, Amina Bolatkan, Masaaki Komatsu, Masayoshi Yamada, Mototaka Miyake, Hirokazu Watanabe, Akiko Tateishi, Takaaki Mizuno, Yu Okubo, Masami Mukai, Tatsuya Yoshida, Yukihiro Yoshida, Hidehito Horinouchi, Shun-Ichi Watanabe, Yuichiro Ohe, Yasushi Yatabe, Takashi Kohno, Ryuji Hamamoto
{"title":"Multi-omics and clustering analyses reveal the mechanisms underlying unmet needs for patients with lung adenocarcinoma and identify potential therapeutic targets.","authors":"Ken Asada, Syuzo Kaneko, Ken Takasawa, Kouya Shiraishi, Norio Shinkai, Yoko Shimada, Satoshi Takahashi, Hidenori Machino, Kazuma Kobayashi, Amina Bolatkan, Masaaki Komatsu, Masayoshi Yamada, Mototaka Miyake, Hirokazu Watanabe, Akiko Tateishi, Takaaki Mizuno, Yu Okubo, Masami Mukai, Tatsuya Yoshida, Yukihiro Yoshida, Hidehito Horinouchi, Shun-Ichi Watanabe, Yuichiro Ohe, Yasushi Yatabe, Takashi Kohno, Ryuji Hamamoto","doi":"10.1186/s12943-024-02093-w","DOIUrl":"10.1186/s12943-024-02093-w","url":null,"abstract":"<p><strong>Background: </strong>The cancer genome contains several driver mutations. However, in some cases, no known drivers have been identified; these remaining areas of unmet needs, leading to limited progress in cancer therapy. Whole-genome sequencing (WGS) can identify non-coding alterations associated with the disease. Consequently, exploration of non-coding regions using WGS and other omics data such as ChIP-sequencing (ChIP-seq) to discern novel alterations and mechanisms related to tumorigenesis have been attractive these days.</p><p><strong>Methods: </strong>Integrated multi-omics analyses, including WGS, ChIP-seq, DNA methylation, and RNA-sequencing (RNA-seq), were conducted on samples from patients with non-clinically actionable genetic alterations (non-CAGAs) in lung adenocarcinoma (LUAD). Second-level cluster analysis was performed to reinforce the correlations associated with patient survival, as identified by RNA-seq. Subsequent differential gene expression analysis was performed to identify potential druggable targets.</p><p><strong>Results: </strong>Differences in H3K27ac marks in non-CAGAs LUAD were found and confirmed by analyzing RNA-seq data, in which mastermind-like transcriptional coactivator 2 (MAML2) was suppressed. The down-regulated genes whose expression was correlated to MAML2 expression were associated with patient prognosis. WGS analysis revealed somatic mutations associated with the H3K27ac marks in the MAML2 region and high levels of DNA methylation in MAML2 were observed in tumor samples. The second-level cluster analysis enabled patient stratification and subsequent analyses identified potential therapeutic target genes and treatment options.</p><p><strong>Conclusions: </strong>We overcome the persistent challenges of identifying alterations or driver mutations in coding regions related to tumorigenesis through a novel approach combining multi-omics data with clinical information to reveal the molecular mechanisms underlying non-CAGAs LUAD, stratify patients to improve patient prognosis, and identify potential therapeutic targets. This approach may be applicable to studies of other cancers with unmet needs.</p>","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"23 1","pages":"182"},"PeriodicalIF":27.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11367768/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142109680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
LAMTOR1 decreased exosomal PD-L1 to enhance immunotherapy efficacy in non-small cell lung cancer LAMTOR1 可减少外泌体 PD-L1,从而提高非小细胞肺癌的免疫疗法疗效
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-09-02 DOI: 10.1186/s12943-024-02099-4
Bo Wu, Xin Huang, Xiang Shi, Meixi Jiang, Hongxu Liu, Li Zhao
{"title":"LAMTOR1 decreased exosomal PD-L1 to enhance immunotherapy efficacy in non-small cell lung cancer","authors":"Bo Wu, Xin Huang, Xiang Shi, Meixi Jiang, Hongxu Liu, Li Zhao","doi":"10.1186/s12943-024-02099-4","DOIUrl":"https://doi.org/10.1186/s12943-024-02099-4","url":null,"abstract":"Great progress has been made in utilizing immune checkpoint blockade (ICB) for the treatment of non-small-cell lung cancer (NSCLC). Therapies targeting programmed cell death protein 1 (PD-1) and its ligand PD-L1, expressed on tumor cells, have demonstrated potential in improving patient survival rates. An unresolved issue involves immune suppression induced by exosomal PD-L1 within the tumor microenvironment (TME), particularly regarding CD8+ T cells. Our study unveiled the crucial involvement of LAMTOR1 in suppressing the exosomes of PD-L1 and promoting CD8+ T cell infiltration in NSCLC. Through its interaction with HRS, LAMTOR1 facilitates PD-L1 lysosomal degradation, thereby reducing exosomal PD-L1 release. Notably, the ability of LAMTOR1 to promote PD-L1 lysosomal degradation relies on a specific ubiquitination site and an HRS binding sequence. The findings suggest that employing LAMTOR1 to construct peptides could serve as a promising strategy for bolstering the efficacy of immunotherapy in NSCLC. The discovery and comprehension of how LAMTOR1 inhibits the release of exosomal PD-L1 offer insights into potential therapeutic strategies for improving immunotherapy. It is imperative to conduct further research and clinical trials to investigate the feasibility and efficacy of targeting LAMTOR1 in NSCLC treatment.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"18 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118219","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
Programmed death receptor (PD-)1/PD-ligand (L)1 in urological cancers : the “all-around warrior” in immunotherapy 泌尿系统癌症中的程序性死亡受体(PD-)1/PD-配体(L)1:免疫疗法中的 "全能战士
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-09-02 DOI: 10.1186/s12943-024-02095-8
Qiang Liu, Yujing Guan, Shenglong Li
{"title":"Programmed death receptor (PD-)1/PD-ligand (L)1 in urological cancers : the “all-around warrior” in immunotherapy","authors":"Qiang Liu, Yujing Guan, Shenglong Li","doi":"10.1186/s12943-024-02095-8","DOIUrl":"https://doi.org/10.1186/s12943-024-02095-8","url":null,"abstract":"Programmed death receptor-1 (PD-1) and its ligand, programmed death ligand-1 (PD-L1) are essential molecules that are key in modulating immune responses. PD-L1 is constitutively expressed on various immune cells, epithelial cells, and cancer cells, where it functions as a co-stimulatory molecule capable of impairing T-cell mediated immune responses. Upon binding to PD-1 on activated T-cells, the PD-1/PD-L1 interaction triggers signaling pathways that can induce T-cell apoptosis or anergy, thereby facilitating the immune escape of tumors. In urological cancers, including bladder cancer (BCa), renal cell carcinoma (RCC), and prostate cancer (PCa), the upregulation of PD-L1 has been demonstrated. It is linked to poor prognosis and enhanced tumor immune evasion. Recent studies have highlighted the significant role of the PD-1/PD-L1 axis in the immune escape mechanisms of urological cancers. The interaction between PD-L1 and PD-1 on T-cells further contributes to immunosuppression by inhibiting T-cell activation and proliferation. Clinical applications of PD-1/PD-L1 checkpoint inhibitors have shown promising efficacy in treating advanced urological cancers, significantly improving patient outcomes. However, resistance to these therapies, either intrinsic or acquired, remains a significant challenge. This review aims to provide a comprehensive overview of the role of the PD-1/PD-L1 signaling pathway in urological cancers. We summarize the regulatory mechanism underlying PD-1 and PD-L1 expression and activity, including genetic, epigenetic, post-transcriptional, and post-translational modifications. Additionally, we discuss current clinical research on PD-1/PD-L1 inhibitors, their therapeutic potential, and the challenges associated with resistance. Understanding these mechanisms is crucial for developing new strategies to overcome therapeutic limitations and enhance the efficacy of cancer immunotherapy. ","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"9 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118220","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
Cellular senescence and SASP in tumor progression and therapeutic opportunities 肿瘤进展中的细胞衰老和 SASP 以及治疗机会
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-08-31 DOI: 10.1186/s12943-024-02096-7
Zening Dong, Yahan Luo, Zhangchen Yuan, Yu Tian, Tianqiang Jin, Feng Xu
{"title":"Cellular senescence and SASP in tumor progression and therapeutic opportunities","authors":"Zening Dong, Yahan Luo, Zhangchen Yuan, Yu Tian, Tianqiang Jin, Feng Xu","doi":"10.1186/s12943-024-02096-7","DOIUrl":"https://doi.org/10.1186/s12943-024-02096-7","url":null,"abstract":"Cellular senescence (CS), a permanent and irreversible arrest of the cell cycle and proliferation leading to the degeneration of cellular structure and function, has been implicated in various key physiological and pathological processes, particularly in cancer. Initially, CS was recognized as a barrier to tumorigenesis, serving as an intrinsic defense mechanism to protect cells from malignant transformation. However, increasing evidence suggests that senescent cells can promote tumor progression to overt malignancy, primarily through a set of factors known as senescence-associated secretory phenotypes (SASPs), including chemokines, growth factors, cytokines, and stromal metalloproteinases. These factors significantly reshape the tumor microenvironment (TME), enabling tumors to evade immune destruction. Interestingly, some studies have also suggested that SASPs may impede tumor development by enhancing immunosurveillance. These opposing roles highlight the complexity and heterogeneity of CS and SASPs in diverse cancers. Consequently, there has been growing interest in pharmacological interventions targeting CS or SASPs in cancer therapy, such as senolytics and senomorphics, to either promote the clearance of senescent cells or mitigate the harmful effects of SASPs. In this review, we will interpret the concept of CS, delve into the role of SASPs in reshaping the TME, and summarize recent advances in anti-tumor strategies targeting CS or SASPs.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"9 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142101946","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
Joint single-cell genetic and transcriptomic analysis reveal pre-malignant SCP-like subclones in human neuroblastoma 单细胞遗传学和转录组学联合分析揭示了人类神经母细胞瘤的恶性前 SCP 样亚克隆
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-08-31 DOI: 10.1186/s12943-024-02091-y
Thale K. Olsen, Jörg Otte, Shenglin Mei, Bethel Tesfai Embaie, Polina Kameneva, Huaitao Cheng, Teng Gao, Vasilios Zachariadis, Ioanna Tsea, Åsa Björklund, Emil Kryukov, Ziyi Hou, Anna Johansson, Erik Sundström, Tommy Martinsson, Susanne Fransson, Jakob Stenman, Shahrzad Shirazi Fard, John Inge Johnsen, Per Kogner, Igor Adameyko, Martin Enge, Peter V. Kharchenko, Ninib Baryawno
{"title":"Joint single-cell genetic and transcriptomic analysis reveal pre-malignant SCP-like subclones in human neuroblastoma","authors":"Thale K. Olsen, Jörg Otte, Shenglin Mei, Bethel Tesfai Embaie, Polina Kameneva, Huaitao Cheng, Teng Gao, Vasilios Zachariadis, Ioanna Tsea, Åsa Björklund, Emil Kryukov, Ziyi Hou, Anna Johansson, Erik Sundström, Tommy Martinsson, Susanne Fransson, Jakob Stenman, Shahrzad Shirazi Fard, John Inge Johnsen, Per Kogner, Igor Adameyko, Martin Enge, Peter V. Kharchenko, Ninib Baryawno","doi":"10.1186/s12943-024-02091-y","DOIUrl":"https://doi.org/10.1186/s12943-024-02091-y","url":null,"abstract":"Neuroblastoma (NB) is a heterogeneous embryonal malignancy and the deadliest tumor of infancy. It is a complex disease that can result in diverse clinical outcomes. In some children, tumors regress spontaneously. Others respond well to existing treatments. But for the high-risk group, which constitutes approximately 40% of all patients, the prognosis remains dire despite collaborative efforts in basic and clinical research. While its exact cellular origin is still under debate, NB is assumed to arise from the neural crest cell lineage including multipotent Schwann cell precursors (SCPs), which differentiate into sympatho-adrenal cell states eventually producing chromaffin cells and sympathoblasts. To investigate clonal development of neuroblastoma cell states, we performed haplotype-specific analysis of human tumor samples using single-cell multi-omics, including joint DNA/RNA sequencing of sorted single cells (DNTR-seq). Samples were also assessed using immunofluorescence stainings and fluorescence in-situ hybridization (FISH). Beyond adrenergic tumor cells, we identify subpopulations of aneuploid SCP-like cells, characterized by clonal expansion, whole-chromosome 17 gains, as well as expression programs of proliferation, apoptosis, and a non-immunomodulatory phenotype. Aneuploid pre-malignant SCP-like cells represent a novel feature of NB. Genetic evidence and tumor phylogeny suggest that these clones and malignant adrenergic populations originate from aneuploidy-prone cells of migrating neural crest or SCP origin, before lineage commitment to sympatho-adrenal cell states. Our findings expand the phenotypic spectrum of NB cell states. Considering the multipotency of SCPs in development, we suggest that the transformation of fetal SCPs may represent one possible mechanism of tumor initiation in NB with chromosome 17 aberrations as a characteristic element.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"20 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100696","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
Targeting m7G-enriched circKDM1A prevents colorectal cancer progression 靶向富含 m7G 的 circKDM1A 可预防结直肠癌进展
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-08-30 DOI: 10.1186/s12943-024-02090-z
Zhenqiang Sun, Yanxin Xu, Chaohua Si, Xiaoke Wu, Yaxin Guo, Chen Chen, Chengzeng Wang
{"title":"Targeting m7G-enriched circKDM1A prevents colorectal cancer progression","authors":"Zhenqiang Sun, Yanxin Xu, Chaohua Si, Xiaoke Wu, Yaxin Guo, Chen Chen, Chengzeng Wang","doi":"10.1186/s12943-024-02090-z","DOIUrl":"https://doi.org/10.1186/s12943-024-02090-z","url":null,"abstract":"Plenty of circRNAs have been reported to play an important role in colorectal cancer (CRC), while the reason of abnormal circRNA expression in cancer still keep elusive. Here, we found that m7G RNA modifications were enriched in some circRNAs, these m7G modifications in circRNAs were catalyzed by METTL1, and the GG motif was the main site preference for m7G modifications in circRNAs. We further confirmed that METTL1 played a cancer-promoting role in CRC. We then screened a highly expressed circRNA, called circKDM1A, and found that METTL1 prevented the degradation of circKDM1A by m7G modification. CircKDM1A was further verified to promote proliferation, invasion and migration of CRC in vivo and in vitro. Its cancer-promoting ability was weakened after the m7G site mutation. CircKDM1A was verified to activate AKT pathway by upregulating PDK1, consequently promoting CRC progression. These results suggest that m7G-modified circRNA promotes CRC progression via activating AKT pathway. Our study uncovers an essential physiological function and mechanism of METTL1-mediated m7G modification in the regulation of circRNA stability and cancer progression.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"17 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100697","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
Writers, readers, and erasers RNA modifications and drug resistance in cancer 作家、读者和橡皮擦 癌症中的 RNA 修饰和耐药性
IF 37.3 1区 医学
Molecular Cancer Pub Date : 2024-08-30 DOI: 10.1186/s12943-024-02089-6
Di Chen, Xinyu Gu, Yeltai Nurzat, Lixia Xu, Xueyuan Li, Lixin Wu, Henan Jiao, Peng Gao, Xuqiang Zhu, Dongming Yan, Shaohua Li, Chen Xue
{"title":"Writers, readers, and erasers RNA modifications and drug resistance in cancer","authors":"Di Chen, Xinyu Gu, Yeltai Nurzat, Lixia Xu, Xueyuan Li, Lixin Wu, Henan Jiao, Peng Gao, Xuqiang Zhu, Dongming Yan, Shaohua Li, Chen Xue","doi":"10.1186/s12943-024-02089-6","DOIUrl":"https://doi.org/10.1186/s12943-024-02089-6","url":null,"abstract":"Drug resistance in cancer cells significantly diminishes treatment efficacy, leading to recurrence and metastasis. A critical factor contributing to this resistance is the epigenetic alteration of gene expression via RNA modifications, such as N6-methyladenosine (m6A), N1-methyladenosine (m1A), 5-methylcytosine (m5C), 7-methylguanosine (m7G), pseudouridine (Ψ), and adenosine-to-inosine (A-to-I) editing. These modifications are pivotal in regulating RNA splicing, translation, transport, degradation, and stability. Governed by “writers,” “readers,” and “erasers,” RNA modifications impact numerous biological processes and cancer progression, including cell proliferation, stemness, autophagy, invasion, and apoptosis. Aberrant RNA modifications can lead to drug resistance and adverse outcomes in various cancers. Thus, targeting RNA modification regulators offers a promising strategy for overcoming drug resistance and enhancing treatment efficacy. This review consolidates recent research on the role of prevalent RNA modifications in cancer drug resistance, with a focus on m6A, m1A, m5C, m7G, Ψ, and A-to-I editing. Additionally, it examines the regulatory mechanisms of RNA modifications linked to drug resistance in cancer and underscores the existing limitations in this field.","PeriodicalId":19000,"journal":{"name":"Molecular Cancer","volume":"8 1","pages":""},"PeriodicalIF":37.3,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142101918","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
Assessment of SWI/SNF chromatin remodeling complex related genes as potential biomarkers and therapeutic targets in pan-cancer. 将 SWI/SNF 染色质重塑复合体相关基因评估为泛癌症的潜在生物标记物和治疗靶点。
IF 27.7 1区 医学
Molecular Cancer Pub Date : 2024-08-27 DOI: 10.1186/s12943-024-02015-w
Kai Zhuang, Lishan Wang, Chengyu Lu, Zhiping Liu, Dongli Yang, Hao Zhong, Jiami Zou, Aamir Fahira, Jiaojiao Wang, Zunnan Huang
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