1
|
Yang Y, Chen M, Lan R, Gong H. LINC01410 accelerates the invasion of trophoblast cells by modulating METTL3/Fas. Mol Biol Rep 2024; 51:895. [PMID: 39115693 PMCID: PMC11310249 DOI: 10.1007/s11033-024-09834-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 07/30/2024] [Indexed: 08/11/2024]
Abstract
BACKGROUND Insufficient trophoblast invasion, culminating in suboptimal uterine spiral artery remodeling, is pinpointed as a pivotal contributor to preeclampsia (PE) development. LINC01410 has been documented to be increased in various neoplasms, and is significantly associated with the invasive capabilities of tumor cells. Nonetheless, its function and the mechanisms in the pathogenesis of PE require further investigation. METHODS AND RESULTS LINC01410 and methyltransferase-like 3 (METTL3) were ectopically expressed in HTR-8/Svneo cells via lentiviral transduction. Subsequently, the cells' invasive capabilities and apoptosis rates were evaluated employing Transwell assays and flow cytometry, respectively. The interplay between LINC01410 and METTL3, alongside the m6A methylation of FAS, was probed through RNA immunoprecipitation (RIP). Additionally, the association between FAS and METTL3 was elucidated via Coimmunoprecipitation (Co-IP) assays. The protein level of NF-κB, BAX, and BCL-2 in LINC01410-overexpressing cells was detected by Western blot. Our findings revealed that LINC01410 elevation increased the invasive ability of HTR-8/Svneo cells, directly impacting METTL3 then leading to its reduced expression. Conversely, heightened METTL3 expression mitigated invasiveness while enhancing apoptosis in these cells. Moreover, METTL3's interaction with FAS led to increased FAS expression, subject to m6A methylation. A surge in LINC01410 markedly decreased both mRNA and protein levels of FAS. Furthermore, LINC01410 overexpression significantly reduced NF-κB and BAX protein levels while augmenting BCL-2. CONCLUSIONS Upregulation of LINC01410 expression promotes trophoblast cell invasion by inhibiting FAS levels through modified m6A alteration and suppressing the NF-κB pathway. These findings underscore the pivotal role of LINC01410 in regulating trophoblast cell invasion and propose it as a promising therapeutic strategy for preventing or alleviating PE. This offers valuable insights for the clinical treatment of PE, for which definitive targeted therapy methods are currently lacking.
Collapse
Affiliation(s)
- Yang Yang
- Department of Obstetrics, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, 19 Xiu hua Road, Xiuying District, Haikou, Hainan, 570311, China
| | - Meihua Chen
- Hainan Medical University, 3 Xue yuan Road, Long hua District, Haikou, Hainan, 571199, China
| | - Ruihong Lan
- Department of Obstetrics, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, 19 Xiu hua Road, Xiuying District, Haikou, Hainan, 570311, China
| | - Humin Gong
- Department of Obstetrics, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, 19 Xiu hua Road, Xiuying District, Haikou, Hainan, 570311, China.
| |
Collapse
|
2
|
Zhao L, Li Q, Zhou T, Liu X, Guo J, Fang Q, Cao X, Geng Q, Yu Y, Zhang S, Deng T, Wang X, Jiao Y, Zhang M, Liu H, Tan H, Xiao C. Role of N6-methyladenosine in tumor neovascularization. Cell Death Dis 2024; 15:563. [PMID: 39098905 PMCID: PMC11298539 DOI: 10.1038/s41419-024-06931-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 07/14/2024] [Accepted: 07/22/2024] [Indexed: 08/06/2024]
Abstract
Tumor neovascularization is essential for the growth, invasion, and metastasis of tumors. Recent studies have highlighted the significant role of N6-methyladenosine (m6A) modification in regulating these processes. This review explores the mechanisms by which m6A influences tumor neovascularization, focusing on its impact on angiogenesis and vasculogenic mimicry (VM). We discuss the roles of m6A writers, erasers, and readers in modulating the stability and translation of angiogenic factors like vascular endothelial growth factor (VEGF), and their involvement in key signaling pathways such as PI3K/AKT, MAPK, and Hippo. Additionally, we outline the role of m6A in vascular-immune crosstalk. Finally, we discuss the current development of m6A inhibitors and their potential applications, along with the contribution of m6A to anti-angiogenic therapy resistance. Highlighting the therapeutic potential of targeting m6A regulators, this review provides novel insights into anti-angiogenic strategies and underscores the need for further research to fully exploit m6A modulation in cancer treatment. By understanding the intricate role of m6A in tumor neovascularization, we can develop more effective therapeutic approaches to inhibit tumor growth and overcome treatment resistance. Targeting m6A offers a novel approach to interfere with the tumor's ability to manipulate its microenvironment, enhancing the efficacy of existing treatments and providing new avenues for combating cancer progression.
Collapse
Affiliation(s)
- Lu Zhao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
- China-Japan Friendship Hospital, Capital Medical University, Beijing, China
| | - Qinshan Li
- Institute of Precision Medicine of Guizhou Province, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Tongliang Zhou
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xuan Liu
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Jing Guo
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Qing Fang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xiaoxue Cao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Qishun Geng
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Yang Yu
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Songjie Zhang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Tingting Deng
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xing Wang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Yi Jiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Mengxiao Zhang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Honglin Liu
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China.
- China-Japan Friendship Hospital, Capital Medical University, Beijing, China.
| | - Haidong Tan
- Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing, 100029, China.
| | - Cheng Xiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China.
- China-Japan Friendship Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
3
|
Wu N, Sun Y, Xue D, He X. FTO promotes the progression of bladder cancer via demethylating m 6A modifications in PTPN6 mRNA. Heliyon 2024; 10:e34031. [PMID: 39100467 PMCID: PMC11295866 DOI: 10.1016/j.heliyon.2024.e34031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 08/06/2024] Open
Abstract
Bladder cancer (BC), a highly prevalent malignancy of the urinary system, necessitates further investigation into its progression mechanisms. N6-methyladenosine (m6A) RNA methylation, a prevalent modification in cellular RNA, has been implicated in the tumorigenesis and metastasis of various cancers. In this study, the upregulation of FTO in human BC samples and its association with poor prognosis were demonstrated using immunohistochemistry (IHC) on tissue sections collected from BC patients. The functional role of FTO in promoting the proliferation and metastasis abilities of BC cells was determined using a combination of in vitro and in vivo assays. In vitro, we conducted cell proliferation assays, such as the Cell Counting Kit-8 (CCK-8) assay, and metastasis assays, including the wound healing assay and transwell invasion assay. In vivo, we employed xenograft models to assess tumor growth and metastasis. Furthermore, our investigation into potential FTO targets in BC cells revealed that FTO modifies PTPN6 mRNA, leading to increased stability and expression of PTPN6, thereby enhancing proliferation and metastasis abilities. In conclusion, our findings indicate that FTO serves as an oncogenic factor in BC, suggesting its potential utility as a diagnostic or prognostic biomarker for bladder cancer.
Collapse
Affiliation(s)
- Naping Wu
- Department of Breast Surgery, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, Jiangsu, PR China
| | - Yangyang Sun
- Department of Urology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, Jiangsu, PR China
| | - Dong Xue
- Department of Urology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, Jiangsu, PR China
| | - Xiaozhou He
- Department of Urology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, Jiangsu, PR China
| |
Collapse
|
4
|
Chen K, Li WD, Li XQ. The role of m6A in angiogenesis and vascular diseases. iScience 2024; 27:110082. [PMID: 39055919 PMCID: PMC11269316 DOI: 10.1016/j.isci.2024.110082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024] Open
Abstract
Angiogenesis, whether physiological or pathological, plays a pivotal role in various physiological and disease conditions. This intricate process relies on a complex and meticulously orchestrated signal transduction network that connects endothelial cells, their associated parietal cells (VSMCs and pericytes), and various other cell types, including immune cells. Given the significance of m6A and its connection to angiogenesis and vascular disease, researchers must adopt a comprehensive and ongoing approach to their investigations. This study aims to ascertain whether a common key mechanism of m6A exists in angiogenesis and vascular diseases and to elucidate the potential application of m6A in treating vascular diseases.
Collapse
Affiliation(s)
- Ke Chen
- Department of Vascular Surgery, The Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, China
| | - Wen-Dong Li
- Department of Vascular Surgery, The Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, China
| | - Xiao-Qiang Li
- Department of Vascular Surgery, The Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, China
| |
Collapse
|
5
|
Wang B, Fan X, Wang L, Wei X. The RNA-binding protein sorbin and SH3 domain-containing 2 are transcriptionally regulated by specificity protein 1 and function as tumor suppressors in bladder cancer by stabilizing tissue factor pathway inhibitor. Mol Carcinog 2024; 63:1174-1187. [PMID: 38501385 DOI: 10.1002/mc.23717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 03/20/2024]
Abstract
Sorbin and SH3 domain-containing 2 (SORBS2) is an RNA-binding protein and has been implicated in the development of some cancers. However, its role in bladder cancer (BC) is yet to be established. The expression of SORBS2 in BC tissues was determined from the Gene Expression Omnibus and Gene Expression Profiling Interactive Analysis databases and collected paired tumor/normal samples. The effects of SORBS2 on BC cells were detected by CCK-8, colony formation, Transwell, dual-luciferase, RNA immunoprecipitation, chromatin immunoprecipitation, and DNA pull-down assays. In vivo, BC cell growth and metastasis were studied by a xenograft subcutaneous model and a tail-vein metastasis model. The results showed that SORBS2 expression was significantly decreased in BC tissues and cells. SORBS2 overexpression inhibited cell proliferation, migration, invasion, and epithelial-mesenchymal transition in vitro and tumor growth and metastasis in vivo, while silencing SORBS2 produced the opposite effect. Mechanistically, we found that SORBS2 enhanced the stability of tissue factor pathway inhibitor (TFPI) mRNA via direct binding to its 3' UTR. Restoration of TFPI expression reversed SORBS2 knockdown-induced malignant phenotypes of BC cells. In addition, SORBS2 expression was negatively regulated by the transcription factor specificity protein 1 (SP1). Conversely, SORBS2 can be transcriptionally regulated by SP1 and inhibit BC cell growth and metastasis via stabilization of TFPI mRNA, indicating SORBS2 may be a promising therapeutic target for BC.
Collapse
Affiliation(s)
- Beibei Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xin Fan
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lingang Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaosong Wei
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| |
Collapse
|
6
|
Yuan Z, Li B, Liao W, Kang D, Deng X, Tang H, Xie J, Hu D, Chen A. Comprehensive pan-cancer analysis of YBX family reveals YBX2 as a potential biomarker in liver cancer. Front Immunol 2024; 15:1382520. [PMID: 38698857 PMCID: PMC11063299 DOI: 10.3389/fimmu.2024.1382520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/02/2024] [Indexed: 05/05/2024] Open
Abstract
Background The Y-box-binding proteins (YBX) act as a multifunctional role in tumor progression, metastasis, drug resistance by regulating the transcription and translation process. Nevertheless, their functions in a pan-cancer setting remain unclear. Methods This study examined the clinical features expression, prognostic value, mutations, along with methylation patterns of three genes from the YBX family (YBX1, YBX2, and YBX3) in 28 different types of cancer. Data used for analysis were obtained from Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) databases. A novel YBXs score was created using the ssGSEA algorithm for the single sample gene set enrichment analysis. Additionally, we explored the YBXs score's association with the tumor microenvironment (TME), response to various treatments, and drug resistance. Results Our analysis revealed that YBX family genes contribute to tumor progression and are indicative of prognosis in diverse cancer types. We determined that the YBXs score correlates significantly with numerous malignant pathways in pan-cancer. Moreover, this score is also linked with multiple immune-related characteristics. The YBXs score proved to be an effective predictor for the efficacy of a range of treatments in various cancers, particularly immunotherapy. To summarize, the involvement of YBX family genes is vital in pan-cancer and exhibits a significant association with TME. An elevated YBXs score indicates an immune-activated TME and responsiveness to diverse therapies, highlighting its potential as a biomarker in individuals with tumors. Finally, experimental validations were conducted to explore that YBX2 might be a potential biomarker in liver cancer. Conclusion The creation of YBXs score in our study offered new insights into further studies. Besides, YBX2 was found as a potential therapeutic target, significantly contributing to the improvement of HCC diagnosis and treatment strategies.
Collapse
Affiliation(s)
- Ze Yuan
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Binbin Li
- Department of Medical Oncology, The Third People’s Hospital of Yongzhou, Yongzhou, China
| | - Wenmin Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Da Kang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xinpei Deng
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jindong Xie
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Dandan Hu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Aiqin Chen
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| |
Collapse
|
7
|
Huang Y, Lv Y, Yang B, Zhang S, Bixia liu, Zhang C, Hu W, Jiang L, Chen C, Ji D, Xiong C, Liang Y, Liu M, Ying X, Ji W. Enhancing m 6A modification of lncRNA through METTL3 and RBM15 to promote malignant progression in bladder cancer. Heliyon 2024; 10:e28165. [PMID: 38560117 PMCID: PMC10979072 DOI: 10.1016/j.heliyon.2024.e28165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/10/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
Objective Bladder cancer is one of the most prominent malignancies affecting the urinary tract, characterized by a poor prognosis. Our previous research has underscored the pivotal role of m6A methylation in the progression of bladder cancer. Nevertheless, the precise relationship between N6-methyladenosine (m6A) regulation of long non-coding RNA (lncRNA) and bladder cancer remains elusive. Methods This study harnessed sequencing data and clinical records from 408 bladder cancer patients in the TCGA database. Employing R software, we conducted bioinformatics analysis to establish an m6A-lncRNA co-expression network. Analyzing the differences between high and low-risk groups, particularly at the immunological level, and subsequently investigating the primary regulatory factors of these lncRNA, validating the findings through experiments, and exploring their specific cellular functions. Results We identified 50 m6A-related lncRNA with prognostic significance through univariate Cox regression analysis. In parallel, we employed a LASSO-Cox regression model to pinpoint 11 lncRNA and calculate risk scores for bladder cancer patients. Based on the median risk score, patients were categorized into low-risk and high-risk groups. The high-risk cohort exhibited notably lower survival rates than their low-risk counterparts. Further analysis pointed to RBM15 and METTL3 as potential master regulators of these m6A-lncRNA. Experimental findings also shed light on the upregulated expression of METTlL3 and RBM15 in bladder cancer, where they contributed to the malignant progression of tumors. The experimental findings demonstrated a significant upregulation of METTL3 and RBM15 in bladder cancer specimens, implicating their contributory role in the oncogenic progression. Knockdown of METTL3 and RBM15 resulted in a marked attenuation of tumor cell proliferation, invasion, and migration, which was concomitant with a downregulation in the cellular m6A methylation status. Moreover, these results revealed that RBM15 and METTL3 function in a synergistic capacity, positing their involvement in cancer promotion via the upregulation of m6A modifications in long non-coding RNAs. Additionally, this study successfully developed an N-methyl-N-nitrosourea (MNU)-induced rat model of in situ bladder carcinoma, confirming the elevated expression of RBM15 and METTL3, which paralleled the overexpression of m6A-related- lncRNAs observed in bladder cancer cell lines. This congruence underscores the potential utility of these molecular markers in in vivo models that mirror human malignancies. Conclusion This study not only offers novel molecular targets,but also enriches the research on m6A modification in bladder cancer, thereby facilitating its clinical translation.
Collapse
Affiliation(s)
- Yapeng Huang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yifan Lv
- Guangdong Provincial Key Laboratory of Urology, Guangzhou, 510230, China
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Baotong Yang
- Guangdong Provincial Key Laboratory of Urology, Guangzhou, 510230, China
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shike Zhang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bixia liu
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chengcheng Zhang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenyu Hu
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | | | - Cong Chen
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ding Ji
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chang Xiong
- Guangdong Provincial People's Hospital, China
| | - Yaoming Liang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Mingrui Liu
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaoling Ying
- Guangdong Provincial Key Laboratory of Urology, Guangzhou, 510230, China
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Urology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510220, China
| | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| |
Collapse
|
8
|
Pan W, Liu X, Liu S. ALYREF m5C RNA methylation reader predicts bladder cancer prognosis by regulating the tumor immune microenvironment. Medicine (Baltimore) 2024; 103:e37590. [PMID: 38579085 PMCID: PMC10994465 DOI: 10.1097/md.0000000000037590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/22/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND 5-Methylcytidine (m5C) methylation is a recently emerging epigenetic modification that is closely related to tumor proliferation, occurrence, and metastasis. This study aimed to investigate the clinicopathological characteristics and prognostic value of m5C regulators in bladder cancer (BLCA), and their correlation with the tumor immune microenvironment. METHODS Thirteen m5C RNA methylation regulators were analyzed using RNA-sequencing and corresponding clinical information obtained from the TCGA database. The Cluster Profiler package was used to analyze the gene ontology function of potential targets and enriched the Kyoto Encyclopedia of Genes and Genomes pathway. Kaplan-Meier survival analysis was used to compare survival differences using the log-rank test and univariate Cox proportional hazards regression. The correlation between signature prognostic m5C regulators and various immune cells was analyzed. Univariate and multivariate Cox regression analyses identified independence of the ALYREF gene signature. RESULTS Nine out of the 13 m5C RNA methylation regulators were differentially expressed in BLCA and normal samples and were co-expressed. These 9 regulators were associated with clinicopathological tumor characteristics, particularly high or low tumor risk, pT or pTNM stage, and migration. Consensus clustering analysis divides the BLCA samples into 4 clusters. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment annotation and gene ontology function analysis identified 273 upregulated and 594 downregulated genes in BLCA. Notably, only ALYREF was significantly correlated with OS (P < .05). ALYREF exhibited significant infiltration levels in macrophage cells. Therefore, we constructed a nomogram for ALYREF as an independent prognostic factor. Additionally, we observed that both the mRNA and protein levels of ALYREF were upregulated, and immunofluorescence showed that ALYREF was mainly distributed in nuclear speckles. ALYREF overexpression was significantly associated with poor OS. CONCLUSION Our findings demonstrated the potential of ALYREF to predict clinical prognostic risks in BLCA patients and regulate the tumor immune microenvironment. As such, ALYREF may serve as a novel prognostic indicator in BLCA patients.
Collapse
Affiliation(s)
- Wengu Pan
- Kidney Transplantation of The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Kidney Transplantation, Multidisciplinary Innovation Center for Nephrology, The Second Hospital of Shandong University, Jinan, China
| | - Xiaoli Liu
- Kidney Transplantation of The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Kidney Transplantation, Multidisciplinary Innovation Center for Nephrology, The Second Hospital of Shandong University, Jinan, China
| | - Shuangde Liu
- Kidney Transplantation of The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Kidney Transplantation, Multidisciplinary Innovation Center for Nephrology, The Second Hospital of Shandong University, Jinan, China
| |
Collapse
|
9
|
Jiang T, Qi J, Xue Z, Liu B, Liu J, Hu Q, Li Y, Ren J, Song H, Xu Y, Xu T, Fan R, Song J. The m 6A modification mediated-lncRNA POU6F2-AS1 reprograms fatty acid metabolism and facilitates the growth of colorectal cancer via upregulation of FASN. Mol Cancer 2024; 23:55. [PMID: 38491348 PMCID: PMC10943897 DOI: 10.1186/s12943-024-01962-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/19/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) have emerged as key players in tumorigenesis and tumour progression. However, the biological functions and potential mechanisms of lncRNAs in colorectal cancer (CRC) are unclear. METHODS The novel lncRNA POU6F2-AS1 was identified through bioinformatics analysis, and its expression in CRC patients was verified via qRT-PCR and FISH. In vitro and in vivo experiments, such as BODIPY staining, Oil Red O staining, triglyceride (TAG) assays, and liquid chromatography mass spectrometry (LC-MS) were subsequently performed with CRC specimens and cells to determine the clinical significance, and functional roles of POU6F2-AS1. Biotinylated RNA pull-down, RIP, Me-RIP, ChIP, and patient-derived organoid (PDO) culture assays were performed to confirm the underlying mechanism of POU6F2-AS1. RESULTS The lncRNA POU6F2-AS1 is markedly upregulated in CRC and associated with adverse clinicopathological features and poor overall survival in CRC patients. Functionally, POU6F2-AS1 promotes the growth and lipogenesis of CRC cells both in vitro and in vivo. Mechanistically, METTL3-induced m6A modification is involved in the upregulation of POU6F2-AS1. Furthermore, upregulated POU6F2-AS1 could tether YBX1 to the FASN promoter to induce transcriptional activation, thus facilitating the growth and lipogenesis of CRC cells. CONCLUSIONS Our data revealed that the upregulation of POU6F2-AS1 plays a critical role in CRC fatty acid metabolism and might provide a novel promising biomarker and therapeutic target for CRC.
Collapse
Affiliation(s)
- Tao Jiang
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
- Affiliated First Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Junwen Qi
- Affiliated First Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Zhenyu Xue
- Department of Radiation Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212001, China
| | - Bowen Liu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Jianquan Liu
- Affiliated First Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Qihang Hu
- Affiliated First Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Yuqiu Li
- Affiliated First Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Jing Ren
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Hu Song
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Yixin Xu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Teng Xu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Ruizhi Fan
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Jun Song
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, China.
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China.
| |
Collapse
|
10
|
Yang Z, Luo Y, Zhang F, Ma L. Exosome-derived lncRNA A1BG-AS1 attenuates the progression of prostate cancer depending on ZC3H13-mediated m6A modification. Cell Div 2024; 19:5. [PMID: 38351022 PMCID: PMC10863231 DOI: 10.1186/s13008-024-00110-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/05/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Exosome-derived long non-coding RNAs (lncRNAs) and N6-methyladenosine (m6A) modifications of lncRNAs have been shown crucial functions in prostate cancer (PCa). Herein, we aim to investigate the detailed mechanism of exosome-derived lncRNA A1BG-AS1 in PCa process. METHODS PCa cell exosomes were extracted, exosomal marker proteins (CD63, CD9) were detected utilizing western blotting, and exosomes with overexpressing A1BG-AS1 were co-cultured with targeted PCa cells. qRT-PCR was used to detect A1BG-AS1 expression and m6A methyltransferase ZC3H13 in PCa. Transwell, colony formation and CCK-8 assays were utilized to assess the invasion, migration, and proliferation ability of PCa cells. Then, we performed actinomycin D and MeRIP assays to analyze the regulatory effect of ZC3H13 on A1BG-AS1 mRNA stability and m6A modification level. RESULTS We observed that A1BG-AS1 and ZC3H13 expression was restricted in PCa tumors. The invasion, proliferation and migratory capacities of PCa cells could be inhibited by up-regulating A1BG-AS1 or by co-culturing with exosomes that up-regulate A1BG-AS1. Additionally, ZC3H13 promoted stable A1BG-AS1 expression by regulating the m6A level of A1BG-AS1. CONCLUSION Exosomal A1BG-AS1 was m6A-modified by the m6A methyltransferase ZC3H13 to stabilize expression and thus prevent PCa cell malignancy. These findings offer a possible target for clinical therapy of PCa.
Collapse
Affiliation(s)
- Zhi Yang
- Department of Urology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, No. 168, Hong Kong Road, Jiangan District, Wuhan, 430015, Hubei, China
| | - Yu Luo
- Department of Urology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, No. 168, Hong Kong Road, Jiangan District, Wuhan, 430015, Hubei, China
| | - Fan Zhang
- Department of Urology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, No. 168, Hong Kong Road, Jiangan District, Wuhan, 430015, Hubei, China
| | - Likun Ma
- Department of Urology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, No. 168, Hong Kong Road, Jiangan District, Wuhan, 430015, Hubei, China.
| |
Collapse
|
11
|
Lu J, Yang Y, Liu X, Chen X, Song W, Liu Z. FTO-mediated LINC01134 stabilization to promote chemoresistance through miR-140-3p/WNT5A/WNT pathway in PDAC. Cell Death Dis 2023; 14:713. [PMID: 37914721 PMCID: PMC10620239 DOI: 10.1038/s41419-023-06244-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive cancer most frequently detected at an advanced stage that limits treatment options to systemic chemotherapy, which has provided only marginal positive clinical outcomes. Currently, the first-line chemotherapeutic agent for PDAC is gemcitabine (GEM). However, the chemotherapy resistance to GEM is often overlooked in the clinical treatment of PDAC due to the lack of effective biological markers. Therefore, it is crucial to find new prognostic markers and therapeutic targets for patients with PDAC. In this study, we identified a novel regulatory mechanism in the development of resistance to GEM in PDAC. Here, we report that LINC01134 was significantly upregulated in primary tumors from PDAC patients. In vitro and in vivo functional studies revealed that LINC01134 promotes PDAC resistance to GEM through facilitating stem cell features and modulating the cell cycle. Mechanistically, LINC01134 interactes with tumor suppressor miR-497-5p in PDAC cells. Increased LINC01134 downregulates miR-140-3p to promotes the oncogenic WNT5A expression. Moreover, m6A demethylase FTO participated in the upregulation of LINC01134 by maintaining LINC01134 mRNA stability through YTHDF2. Taken together, the present study suggested FTO-mediated LINC01134 stabilization to promote chemotherapy resistance to GEM through miR-140-3p/WNT5A/WNT pathway in PDAC. Our study identified new prognostic markers and new therapeutic targets for patients with PDAC.
Collapse
Affiliation(s)
- Jin Lu
- Cancer Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Yongsheng Yang
- Department of Hepatobiliary Pancreatic Surgery, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun, 130041, China
| | - Xiangliang Liu
- Cancer Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Xiao Chen
- Cancer Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Wei Song
- Cancer Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Zefeng Liu
- Department of Hepatobiliary Pancreatic Surgery, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun, 130041, China.
- Jilin Engineering Laboratory for Translational Medicine of Hepatobiliary and Pancreatic Diseases, Changchun, 130041, China.
| |
Collapse
|