201
|
CircRNAs in lung cancer- role and clinical application. Cancer Lett 2022; 544:215810. [PMID: 35780929 DOI: 10.1016/j.canlet.2022.215810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/01/2022] [Accepted: 06/27/2022] [Indexed: 02/08/2023]
Abstract
Lung cancer holds the highest mortality rate among malignancies worldwide. Nevertheless, the potential molecular mechanisms of its tumorigenesis and evolution remain obscure. Circular RNAs (circRNAs), a broad category of covalently closed molecules, follow a malignancy-restricted expression pattern. Leading-edge studies have demonstrated the clinical application prospects of circRNAs in lung cancer. Herein, this review elucidates the biogenesis, biological functions, and pathophysiology of circRNAs. Furthermore, we underscore the forefront of the diagnostic, prognostic, and therapeutic potential of circRNAs in lung cancer as well as discuss the bottleneck that needs to be overcome to translate the basic advances of circRNAs into clinical practice.
Collapse
|
202
|
Yao B, Zhang Q, Yang Z, An F, Nie H, Wang H, Yang C, Sun J, Chen K, Zhou J, Bai B, Gu S, Zhao W, Zhan Q. CircEZH2/miR-133b/IGF2BP2 aggravates colorectal cancer progression via enhancing the stability of m 6A-modified CREB1 mRNA. Mol Cancer 2022; 21:140. [PMID: 35773744 PMCID: PMC9245290 DOI: 10.1186/s12943-022-01608-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 06/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Aberrant expression of circular RNAs (circRNAs) contributes to the initiation and progression of human malignancies, but the underlying mechanisms remain largely elusive. METHODS High-throughput sequencing was performed to screen aberrantly expressed circRNAs or miRNAs in colorectal cancer (CRC) and adjacent normal tissues. A series of gain- and loss-of-function studies were conducted to evaluate the biological behaviors of CRC cells. RNA pulldown, mass spectrometry, RIP, qRT-PCR, Western blot, luciferase reporter assays and MeRIP-seq analysis were further applied to dissect the detailed mechanisms. RESULTS Here, a novel circRNA named circEZH2 (hsa_circ_0006357) was screened out by RNA-seq in CRC tissues, whose expression is closely related to the clinicpathological characteristics and prognosis of CRC patients. Biologically, circEZH2 facilitates the proliferation and migration of CRC cells in vitro and in vivo. Mechanistically, circEZH2 interacts with m6A reader IGF2BP2 and blocks its ubiquitination-dependent degradation. Meanwhile, circEZH2 could serve as a sponge of miR-133b, resulting in the upregulation of IGF2BP2. Particularly, circEZH2/IGF2BP2 enhances the stability of CREB1 mRNA, thus aggravating CRC progression. CONCLUSIONS Our findings not only reveal the pivotal roles of circEZH2 in modulating CRC progression, but also advocate for attenuating circEZH2/miR-133b/IGF2BP2/ CREB1 regulatory axis to combat CRC.
Collapse
Affiliation(s)
- Bing Yao
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China.
| | - Qinglin Zhang
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Zhou Yang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Fangmei An
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - He Nie
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Hui Wang
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Cheng Yang
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jing Sun
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ke Chen
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jingwan Zhou
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Bing Bai
- Center for Precision Medicine, Department of Laboratory Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Shouyong Gu
- Institute of Geriatric Medicine, Jiangsu Province Geriatric Hospital, Nanjing, Jiangsu Province, China.
| | - Wei Zhao
- Department of Biomedical Sciences and Tung Biomedical Sciences Centre, City University of Hong Kong, Hong Kong, China. .,School of laboratory medicine, Chengdu medical college, Chengdu, China.
| | - Qiang Zhan
- Departments of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu Province, China.
| |
Collapse
|
203
|
Methyladenosine Modification in RNAs: From Regulatory Roles to Therapeutic Implications in Cancer. Cancers (Basel) 2022; 14:cancers14133195. [PMID: 35804965 PMCID: PMC9264946 DOI: 10.3390/cancers14133195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Cancer remains a burden to the public health all over the world. An increasing number of studies have concentrated on the role of methyladenosine modifications on cancers. Methyladenosine modifications mainly include N6-methyladenosine (m6A), N1-methyladenosine (m1A), and 2’-O-methyladenosine (m6Am), of which dynamic changes could modulate the metabolism of RNAs in eukaryotic cells. Mounting evidence has confirmed the crucial role of methyladenosine modification in cancer, offering possibilities for cancer therapy. In this review, we discussed the regulatory role of methyladenosine modification on cancer, as well as their potential for treatment. Abstract Methyladenosine modifications are the most abundant RNA modifications, including N6-methyladenosine (m6A), N1-methyladenosine (m1A), and 2’-O-methyladenosine (m6Am). As reversible epigenetic modifications, methyladenosine modifications in eukaryotic RNAs are not invariable. Drastic alterations of m6A are found in a variety of diseases, including cancers. Dynamic changes of m6A modification induced by abnormal methyltransferase, demethylases, and readers can regulate cancer progression via interfering with the splicing, localization, translation, and stability of mRNAs. Meanwhile, m6A, m1A, and m6Am modifications also exert regulatory effects on noncoding RNAs in cancer progression. In this paper, we reviewed recent findings concerning the underlying biomechanism of methyladenosine modifications in oncogenesis and metastasis and discussed the therapeutic potential of methyladenosine modifications in cancer treatments.
Collapse
|
204
|
Li X, Wang J, Lin W, Yuan Q, Lu Y, Wang H, Chen Y, Chen L, Dai P, Long H, Li X. circEXOC6B interacting with RRAGB, an mTORC1 activator, inhibits the progression of colorectal cancer by antagonizing the HIF1A-RRAGB-mTORC1 positive feedback loop. Mol Cancer 2022; 21:135. [PMID: 35739524 PMCID: PMC9219196 DOI: 10.1186/s12943-022-01600-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Background In recent years, an increasing number of studies have indicated that circular RNA plays crucial roles in regulating tumor development and chemoresistance. Using two high-throughput RNA sequence datasets, we previously found that circEXOC6B was downregulated in colon cancer. However, its role and mechanism in colorectal cancer (CRC) remained unknown. Methods Real-time quantitative PCR was used to examine the expression of circEXOC6B in CRC tissues. In vivo and in vitro functional experiments were performed to determine the suppressor role of circEXOC6B in CRC progression. RNA pull-down, mass spectrometry, RNA-binding protein immunoprecipitation, co-immunoprecipitation, fluorescence in situ hybridization, and immunofluorescence were applied to investigate the possible mechanisms connecting circEXOC6B to CRC growth and 5-fluorouracil-induced apoptosis. Chromatin immunoprecipitation, dual-luciferase assay, western blot, and immunohistochemistry were used to explore the mechanisms underlying the HIF1A regulation of RRAGB transcription. Results circEXOC6B was downregulated in CRC tissues, and its lower expression was associated with poor prognosis of patients. Functional experiments showed that circEXOC6B inhibited growth and increased the 5-fluorouracil-induced apoptosis of CRC cells in vitro and in vivo. Mechanistically, circEXOC6B inhibited the heterodimer formation of RRAGB by binding to it, thereby suppressing the mTORC1 pathway and HIF1A level. In addition, HIF1A upregulated the transcription of RRAGB by binding to its promoter region. Altogether, the results demonstrated that a HIF1A-RRAGB-mTORC1 positive feedback loop drives tumor progression in CRC, which could be interrupted by circEXOC6B. Conclusions circEXOC6B inhibits the progression of CRC and enhances the chemosensitivity of CRC cells to 5-fluorouracil by antagonizing the HIF1A-RRAGB-mTORC1 positive feedback loop. circEXOC6B is a possible therapeutic target for CRC treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01600-1.
Collapse
Affiliation(s)
- Xiaomin Li
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Jianjun Wang
- Department of Histology and Embryology, Wannan Medical College, Wuhu, 241002, Anhui Province, China
| | - Weihao Lin
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Qinzi Yuan
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Yanxia Lu
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Haowei Wang
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Yujia Chen
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Lixia Chen
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Peiling Dai
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Huaicheng Long
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Xuenong Li
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Department of Pathology, Southern Medical University, Guangzhou, 510515, Guangdong Province, China. .,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
| |
Collapse
|
205
|
An M, Zheng H, Huang J, Lin Y, Luo Y, Kong Y, Pang M, Zhang D, Yang J, Chen J, Li Y, Chen C, Lin T. Aberrant Nuclear Export of circNCOR1 Underlies SMAD7-Mediated Lymph Node Metastasis of Bladder Cancer. Cancer Res 2022; 82:2239-2253. [PMID: 35395674 PMCID: PMC9359746 DOI: 10.1158/0008-5472.can-21-4349] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/28/2022] [Accepted: 04/06/2022] [Indexed: 01/07/2023]
Abstract
Circular RNAs (circRNA) containing retained introns are normally sequestered in the nucleus. Dysregulation of cellular homeostasis can drive their nuclear export, which may be involved in cancer metastasis. However, the mechanism underlying circRNA nuclear export and its role in lymph node (LN) metastasis of bladder cancer remain unclear. Here, we identify an intron-retained circRNA, circNCOR1, that is significantly downregulated in LN metastatic bladder cancer and is negatively associated with poor prognosis of patients. Overexpression of circNCOR1 inhibited lymphangiogenesis and LN metastasis of bladder cancer in vitro and in vivo. Nuclear circNCOR1 epigenetically promoted SMAD7 transcription by increasing heterogeneous nuclear ribonucleoprotein L (hnRNPL)-induced H3K9 acetylation in the SMAD7 promoter, leading to inhibition of the TGFβ-SMAD signaling pathway. Nuclear retention of circNCOR1 was regulated by small ubiquitin-like modifier (SUMO)ylation of DDX39B, an essential regulatory factor responsible for circRNA nuclear-cytoplasmic transport. Reduced SUMO2 binding to DDX39B markedly increased circNCOR1 retention in the nucleus to suppress bladder cancer LN metastasis. By contrast, SUMOylated DDX39B activated nuclear export of circNCOR1, impairing the suppressive role of circNCOR1 on TGFβ-SMAD cascade activation and bladder cancer LN metastasis. In patient-derived xenograft (PDX) models, overexpression of circNCOR1 and inhibition of TGFβ signaling significantly repressed tumor growth and LN metastasis. This study highlights SUMOylation-induced nuclear export of circNCOR1 as a key event regulating TGFβ-SMAD signaling and bladder cancer lymphangiogenesis, thus supporting circNCOR1 as a novel therapeutic agent for patients with LN metastatic bladder cancer. SIGNIFICANCE This study identifies the novel intron-retained circNCOR1 and elucidates a SUMOylation-mediated DDX39B-circNCOR1-SMAD7 axis that regulates lymph node metastasis of bladder cancer.
Collapse
Affiliation(s)
- Mingjie An
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Hanhao Zheng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Jian Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yan Lin
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yuming Luo
- Pancreatic Center, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yao Kong
- Pancreatic Center, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Mingrui Pang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Dingwen Zhang
- Pancreatic Center, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Jiabin Yang
- Pancreatic Center, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Jiancheng Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yuanlong Li
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Changhao Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,Corresponding Authors: Tianxin Lin, Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiangyi Road, Yuexiu District, Guangzhou, Guangdong Province 510120, P. R. China. Phone: 8620-3407-0447; Fax: 8620-8133-2336; E-mail:; and Changhao Chen,
| | - Tianxin Lin
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,Corresponding Authors: Tianxin Lin, Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiangyi Road, Yuexiu District, Guangzhou, Guangdong Province 510120, P. R. China. Phone: 8620-3407-0447; Fax: 8620-8133-2336; E-mail:; and Changhao Chen,
| |
Collapse
|
206
|
Liu Y, Wang L, Liu W. Roles of circRNAs in the Tumorigenesis and Metastasis of HCC: A Mini Review. Cancer Manag Res 2022; 14:1847-1856. [PMID: 35668744 PMCID: PMC9166687 DOI: 10.2147/cmar.s362594] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/20/2022] [Indexed: 12/21/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of non-coding RNAs with loop structures that are stable and widely distributed in different tumor tissues. The development of high-throughput sequencing and in silico tools has enabled the discovery of numerous functional circRNAs. Hepatocellular carcinoma (HCC) is a malignant tumor, and the mechanism involved in its progression has remained unclear. In recent years, an increasing number of circRNAs have been identified in HCC, contributing to tumorigenesis and metastasis and with the potential role as biomarkers through competitive endogenous RNAs (ceRNAs) as miRNA sponges or by interacting with RNA binding proteins (RBPs). In this review, we summarize the regulatory roles of circRNAs in HCC development as well as the use of bioinformatics tools in the annotation and prioritization of circRNA and highlight the participation of exosomal circRNAs in HCC metastasis and drug resistance.
Collapse
Affiliation(s)
- Yichen Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Lei Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Wen Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| |
Collapse
|
207
|
Qian X, Zhang H, Li Q, Ma G, Chen Z, Ji X, Li C, Zhang A. Integrated microbiome, metabolome, and proteome analysis identifies a novel interplay among commensal bacteria, metabolites and candidate targets in non-small cell lung cancer. Clin Transl Med 2022; 12:e947. [PMID: 35735103 PMCID: PMC9218934 DOI: 10.1002/ctm2.947] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Accumulation of evidence suggests that the gut microbiome, its specific metabolites, and differentially expressed proteins (DEPs) are related to non-small cell lung cancer (NSCLC) pathogenesis. We now report the influences of the gut microbiota, metabolites, and DEPs on the mediation of NSCLC's chronic inflammation and immune dysregulation. METHODS We conducted 16S ribosomal RNA sequencing for the gut microbiome in healthy volunteers and NSCLC patients. Liquid chromatography-mass spectrometry (LC-MS) analysis was employed to explore differences between metabolites and DEPs in serum samples. Additionally, LC-MS-based metabolomic analysis was conducted in 40 NSCLC tissues and 40 adjacent tissues. The omics data were separately analysed and integrated by using Spearman's correlation coefficient. Then, faecal microbiota transplantation (FMT) assay was used to assess the effects of the gut microbiome and specific metabolites in mice. RESULTS Faecal microbiome analysis revealed gut microflora dysbiosis in NSCLC patients with Prevotella, Gemmiger, and Roseburia significantly upregulated at the genus level. Then, we identified that nervonic acid/all-trans-retinoic acid level was negatively related to Prevotella. Additionally, a total of core 8 DEPs were selected in the proteome analysis, which mainly participated in the production of IL-8 and NF-κB pathways. CRP, LBP, and CD14 were identified as potential biomarkers for NSCLC. Transplantation of faecal microbiota from patients with NSCLC or Prevotella copri-colonized recipient in mice resulted in inflammation and immune dysregulation. In turn, nervonic acid/all-trans-retinoic acid treatment improved the phenotype of C57BL/6 mice bearing P. copri-treated Lewis lung cancer (LLC). CONCLUSIONS Overall, these results pointed out that P. copri-nervonic acid/all-trans-retinoic acid axis may contribute to the pathogenesis of NSCLC.
Collapse
Affiliation(s)
- Xiang Qian
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)HangzhouPeople's Republic of China
| | - Hong‐Yan Zhang
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)HangzhouPeople's Republic of China
- Zhejiang Provincial Key Laboratory of Thoracic TumorHangzhouPeople's Republic of China
| | - Qing‐Lin Li
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)HangzhouPeople's Republic of China
| | - Guan‐Jun Ma
- Department of Comprehensive WardAffiliated Hangzhou Cancer HospitalZhejiang University School of MedicineHangzhouPeople's Republic of China
| | - Zhuo Chen
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)HangzhouPeople's Republic of China
| | - Xu‐Ming Ji
- Zhejiang Chinese Medicine UniversityHangzhouPeople's Republic of China
| | - Chang‐Yu Li
- Zhejiang Chinese Medicine UniversityHangzhouPeople's Republic of China
| | - Ai‐qin Zhang
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)HangzhouPeople's Republic of China
| |
Collapse
|
208
|
Li H, Cao B, Zhao R, Li T, Xu X, Cui H, Deng H, Gao J, Wei B. circDNMT1 Promotes Malignant Progression of Gastric Cancer Through Targeting miR-576-3p/Hypoxia Inducible Factor-1 Alpha Axis. Front Oncol 2022; 12:817192. [PMID: 35712504 PMCID: PMC9197105 DOI: 10.3389/fonc.2022.817192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background Circular RNAs (circRNAs) regulate multiple malignant behaviors of various types of cancer. The role of circDNMT1, a newly identified circRNA, remains unknown in gastric cancer (GC). This study aimed to elucidate the underlying mechanisms of circDNMT1 in regulating GC progression. Methods microRNA (miRNA) and circRNA expression was detected by quantitative real-time PCR. Western blotting was performed to measure hypoxia inducible factor-1 alpha (HIF-1α) protein expression. Sanger sequencing, gel electrophoresis and fluorescence in situ hybridization were performed to identify the presence of circDNMT1. The clinicopathological features and overall survival of patients were analyzed based on circDNMT1 expression. The proliferation, migration and invasion of GC cells were determined by cell counting kit-8, 5-ethynyl-2’-deoxyuridine, wound healing and transwell assays. Glycolysis of GC cells was detected based on the levels of glucose uptake, the lactate acid, ATP and pyruvic acid production and the extracellular acidification and oxygen consumption rates. The binding sites between miR-576-3p and circDNMT1 or HIF-1α were predicted by online bioinformatic tools and were validated using RNA pull-down and luciferase reporter assays. Xenograft models were established to determine the effects of the circDNMT1/miR-576-3p/HIF-1α axis on GC growth and metastasis in vivo. Results circDNMT1 was successfully identified and shown to be overexpressed in GC tissues and cell lines. The expression levels of circDNMT1 were correlated with pathological T stage, pathological TNM stage and shorter survival time of GC patients. circDNMT1 knockdown inhibited the proliferation, migration, invasion and glycolysis of GC cells. circDNMT1 functioned as an oncogenic factor by sponging miR-576-3p. HIF-1α was negatively regulated by miR-576-3p via binding its mRNA 3’ untranslated region. circDNMT1 promoted malignant behaviors and metabolic reprogramming of GC by targeting the miR-576-3p/HIF-1α axis both in vitro and in vivo. Conclusion These findings demonstrated that circDNMT1 knockdown inhibited GC proliferation, migration, invasion and glycolysis through sponging miR-576-3p/HIF-1α axis. circDNMT1 may be a novel target for GC treatment.
Collapse
Affiliation(s)
- Hanghang Li
- Graduate School, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Bo Cao
- Graduate School, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Ruiyang Zhao
- Graduate School, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Xingming Xu
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Hao Cui
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Huan Deng
- Graduate School, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Jingwang Gao
- Graduate School, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Bo Wei
- First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Bo Wei,
| |
Collapse
|
209
|
Liang W, Yi H, Mao C, Meng Q, Wu X, Li S, Xue J. Research Progress of RNA Methylation Modification in Colorectal Cancer. Front Pharmacol 2022; 13:903699. [PMID: 35614935 PMCID: PMC9125385 DOI: 10.3389/fphar.2022.903699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/19/2022] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence indicates that RNA methylation, as the most common modification of mRNA, is of great significance in tumor progression and metastasis. Colorectal cancer is a common malignant tumor of the digestive system that seriously affects the health of middle-aged and elderly people. Although there have been many studies on the biological mechanism of the occurrence and development of colorectal cancer, there are still major deficiencies in the diagnosis and prognosis of colorectal cancer. With the deep study of RNA methylation, it was found that RNA modification is highly related to colorectal cancer tumorigenesis, development and prognosis. Here, we will highlight various RNA chemical modifications including N6-methyladenosine, 5-methylcytosine, N1-methyladenosine, 7-methylguanine, pseudouridine and their modification enzymes followed by summarizing their functions in colorectal cancer.
Collapse
Affiliation(s)
- Weizheng Liang
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Hongyang Yi
- The Third People's Hospital of Shenzhen, Shenzhen, China
| | - Chenyu Mao
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - Qingxue Meng
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Xueliang Wu
- Department of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Shanliang Li
- Department of Pharmacology, Guangxi University of Chinese Medicine, Nanning, China
| | - Jun Xue
- Department of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| |
Collapse
|
210
|
Chen Z, Gong Q, Li D, Zhou J. CircKIAA0368 Promotes Proliferation, Migration, and Invasion by Upregulating HOXA10 in Nasopharyngeal Carcinoma. Am J Rhinol Allergy 2022; 36:615-627. [PMID: 35593126 DOI: 10.1177/19458924221100960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Nasopharyngeal carcinoma (NPC) represents a head and neck cancer caused by cancerization of nasal epithelial cells. HOXA10 has been identified to promote proliferation and invasion of NPC cells, but its regulatory mechanism has not been well discussed. Published research work has also pointed out that circular RNAs (circRNAs) could regulate mRNAs to affect NPC tumorigenesis and development. AIM To explore the roles of HOXA10 and its specific regulatory mechanism regarding circRNAs in NPC. METHODS Reverse transcription polymerase chain reaction and western blot were applied to test gene expression. Functional assays were used to evaluate changes in NPC cell phenotypes. Mechanism assays were done to verify RNA-RNA or RNA-protein interaction. RESULTS HOXA10 was highly expressed in NPC tissues and cell lines. Moreover, HOXA10 knockdown could restrict NPC cell proliferation, invasion, migration, and epithelial-mesenchymal transition. CircKIAA0368 was upregulated in NPC cells and could elevate HOXA10 expression by sponging miR-6838-5p. Furthermore, circKIAA0368 was unveiled to competitively bind to p300/CREB-binding protein-associated factor (PCAF) to repress acetylation and degradation of HOXA10 protein. CONCLUSION CircKIAA0368 upregulates HOXA10 expression via miR-6838-5p and PCAF, consequently promoting NPCcell and tumor growth.
Collapse
Affiliation(s)
- Zhiping Chen
- Department of Radiotherapy, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of Radiation Oncology, 146391Jiangxi Cancer Hospital, Nanchang, China
| | - Qiaoying Gong
- Department of Radiation Oncology, 146391Jiangxi Cancer Hospital, Nanchang, China
| | - Daojing Li
- Department of Radiation Oncology, 146391Jiangxi Cancer Hospital, Nanchang, China
| | - Juying Zhou
- Department of Radiotherapy, The First Affiliated Hospital of Soochow University, Suzhou, China
| |
Collapse
|
211
|
Chen Y, Li Z, Liang J, Liu J, Hao J, Wan Q, Liu J, Luo C, Lu Z. CircRNA has_circ_0069313 induced OSCC immunity escape by miR-325-3p-Foxp3 axes in both OSCC cells and Treg cells. Aging (Albany NY) 2022; 14:4376-4389. [PMID: 35575762 PMCID: PMC9186771 DOI: 10.18632/aging.204068] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/25/2022] [Indexed: 11/25/2022]
Abstract
Introduction: CircRNAs are engaged in the tumorigenesis and progression of oral squamous cancer cells (OSCC). However, the function and underlying mechanism of circRNAs on tumor-associated immunity escape are largely unknown. Materials and methods: We analyzed the expression pattern of has_circ_0069313 in our in-house database and its correlation with OSCC prognosis. Immunohistochemistry was applied to detected PDL1 expression. RNA fluorescence in situ hybridization was applied to detect subcellular location of circRNA. A luciferase activity assay was used to detect the interaction of has_circ_0069313 and miR-325-3p and its downstream target, Foxp3. Exosomes were collected to detect the exosomal circRNAs and co-culture assays were performed to detect the function of exosomal circRNAs on Tregs. Results: has_circ_0069313 was upregulated in OSCC tissues and predicts poor prognosis. has_circ_0069313 promotes immunity escape through inhibiting miR-325-3p-induced Foxp3 degradation. has_circ_0069313 is an exosomal circRNA and the transfer of has_circ_0069313 to Treg cells promotes the Treg function through maintaining Foxp3 levels. Conclusion: Our results indicate that has_circ_0069313 induces OSCC immunity escape via the miR-325-3p-Foxp3 axis in both OSCC cells and Treg cells.
Collapse
Affiliation(s)
- Yiyang Chen
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zeyu Li
- School of Stomatology of Qingdao University, Qingdao, China
| | - Jianfeng Liang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Jiayu Liu
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jiansuo Hao
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Quan Wan
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jiameng Liu
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Chongdai Luo
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhiyuan Lu
- Department of Oral and Maxillofacial Surgery, Stomatology Medical Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
212
|
Liu Y, Qiu S, Sun D, Xiong T, Xiang Q, Li Q. Construction of a Comprehensive Diagnostic Scoring Model for Prostate Cancer Based on a Novel Six-Gene Panel. Front Genet 2022; 13:831162. [PMID: 35559023 PMCID: PMC9086319 DOI: 10.3389/fgene.2022.831162] [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: 12/08/2021] [Accepted: 03/14/2022] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence indicates that the N6-methyladenosine (m6A) modification plays a critical role in human cancers. Given the current understanding of m6A modification, this process is believed to be dynamically regulated by m6A regulators. Although the discovery of m6A regulators has greatly enhanced our understanding of the mechanism underlying m6A modification in cancers, the function and role of m6A in the context of prostate cancer (PCa) remain unclear. Here, we aimed to establish a comprehensive diagnostic scoring model that can act as a complement to prostate-specific antigen (PSA) screening. To achieve this, we first drew the landscape of m6A regulators and constructed a LASSO-Cox model using three risk genes (METTL14, HNRNP2AB1, and YTHDF2). Particularly, METTL14 expression was found to be significantly related to overall survival, tumor T stage, relapse rate, and tumor microenvironment of PCa patients, showing that it has important prognostic value. Furthermore, for the sake of improving the predictive ability, we presented a comprehensive diagnostic scoring model based on a novel 6-gene panel by combining with genes found in our previous study, and its application potential was further validated by the whole TCGA and ICGC cohorts. Our study provides additional clues and insights regarding the treatment and diagnosis of PCa patients.
Collapse
Affiliation(s)
- Yunfeng Liu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China.,Guangdong Provincial Engineering and Technology Research Center of Biopharmaceuticals, South China University of Technology, Guangzhou, China
| | - Simei Qiu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Dongshan Sun
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Ting Xiong
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Qiuling Xiang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Quhuan Li
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China.,Guangdong Provincial Engineering and Technology Research Center of Biopharmaceuticals, South China University of Technology, Guangzhou, China
| |
Collapse
|
213
|
Jiang J, Ge H, Yang J, Qiao Y, Xu X, Geng Y. CircRNA protein tyrosine phosphatase receptor type a suppresses proliferation and induces apoptosis of lung adenocarcinoma cells via regulation of microRNA-582-3p. Bioengineered 2022; 13:12182-12192. [PMID: 35549985 PMCID: PMC9276004 DOI: 10.1080/21655979.2022.2073319] [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: 11/16/2022] Open
Abstract
Circular RNAs (circRNAs) are associated with cancer progression. The present study aimed to examine the function of circRNA protein tyrosine phosphatase receptor type A (circRNA_PTPRA) in lung cancer cells and elucidate the underlying molecular mechanisms. The levels of circRNA_PTPRA and microRNA (miRNA/miR)-582-3p were measured in lung cancer tissue and cells using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell proliferation and apoptosis were evaluated using an 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and flow cytometry, respectively. The expression of cyclin D1, caspase-3, and cleaved caspase-3 was assessed via western blotting. The sites of circRNA_PTPRA/miR-582-3p interaction were identified using StarBase, and validated using a dual-luciferase reporter assay. We observed that circRNA_PTPRA levels were remarkably decreased, and miR-582-3p expression was up-regulated in lung cancer tissues and cells. circRNA_PTPRA directly interacts with miR-582-3p and downregulates miR-582-3p expression in lung cancer cells. Moreover, an miR-582-3p inhibitor decreased lung cancer cell proliferation and promoted apoptosis. The overexpression of circRNA_PTPRA decreased cell proliferation and increased apoptotic cell numbers, whereas miR-582-3p overexpression reversed these effects. These findings demonstrate that the up-regulation of circRNA_PTPRA significantly reduces lung cancer cell proliferation and induces apoptosis by regulating miR-582-3p expression.
Collapse
Affiliation(s)
- Jixin Jiang
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Hui Ge
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Jie Yang
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yunfei Qiao
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xingxiang Xu
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yanming Geng
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| |
Collapse
|
214
|
Yin X, Lin H, Lin L, Miao L, He J, Zhuo Z. LncRNAs and CircRNAs in cancer. MedComm (Beijing) 2022; 3:e141. [PMID: 35592755 PMCID: PMC9099016 DOI: 10.1002/mco2.141] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Xin Yin
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
- College of Pharmacy Jinan University Guangzhou Guangdong China
| | - Huiran Lin
- Faculty of Medicine Macau University of Science and Technology Macau China
| | - Lei Lin
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Lei Miao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
- Laboratory Animal Center, School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen China
| |
Collapse
|
215
|
Li S, Wu Q, Liu J, Zhong Y. Identification of Two m6A Readers YTHDF1 and IGF2BP2 as Immune Biomarkers in Head and Neck Squamous Cell Carcinoma. Front Genet 2022; 13:903634. [PMID: 35646049 PMCID: PMC9133459 DOI: 10.3389/fgene.2022.903634] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/13/2022] [Indexed: 01/21/2023] Open
Abstract
Background: N6-methyladenosine (m6A) is the most abundant internal modification pattern in mammals that a plays critical role in tumorigenesis and immune regulations. However, the effect of m6A modification on head and neck squamous cell carcinoma (HNSCC) has not been clearly studied.Methods: We screened m6A regulators that were significantly correlated with tumor immune status indicated by ImmuneScore using The Cancer Genome Atlas (TCGA) dataset and obtained distinct patient clusters based on the expression of these m6A regulators with the R package “CensusClusterPlus.” We then performed gene set enrichment analysis (GSEA), CIBERSORT, and single-sample gene set enrichment analysis (ssGSEA) to assess the differences in gene function enrichment and tumor immune microenvironment (TIME) among these clusters. We further conducted differently expressed gene (DEG) analysis and weighted gene co-expression network analysis (WGCNA) and constructed a protein–protein interaction (PPI) network to determine hub genes among these clusters. Finally, we used the GSE65858 dataset as an external validation cohort to confirm the immune profiles related to the expression of m6A regulators.Results: Two m6A readers, YTHDF1 and IGF2BP2, were found to be significantly associated with distinct immune status in HNSCC. Accordingly, patients were divided into two clusters with Cluster 1 showing high expression of YTHDF1 and IGF2BP2 and Cluster 2 showing low expression levels of both genes. Clinicopathologically, patients from Cluster 1 had more advanced T stage and pathological grades than those from Cluster 2. GSEA showed that Cluster 1 was closely related to the RNA modification process and Cluster 2 was significantly correlated with immune regulations. Cluster 2 had a more active TIME characterized by a more relative abundance of CD8+ T cells and CD4+ T cells and higher levels of MHC I and MHC II molecules. We constructed a PPI network composed of 16 hub genes between the two clusters, which participated in the T-cell receptor signaling pathway. These results were externally validated in the GSE65858 dataset.Conclusions: The m6A readers, YTHDF1 and IGF2BP2, were potential immune biomarkers in HNSCC and could be potential treatment targets for cancer immunotherapy.
Collapse
|
216
|
Chen Y, Lu Z, Qi C, Yu C, Li Y, Huan W, Wang R, Luo W, Shen D, Ding L, Ren L, Xie H, Xue D, Wang M, Ni K, Xia L, Qian J, Li G. N 6-methyladenosine-modified TRAF1 promotes sunitinib resistance by regulating apoptosis and angiogenesis in a METTL14-dependent manner in renal cell carcinoma. Mol Cancer 2022; 21:111. [PMID: 35538475 PMCID: PMC9087993 DOI: 10.1186/s12943-022-01549-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/24/2022] [Indexed: 11/10/2022] Open
Abstract
Background Sunitinib resistance can be classified into primary and secondary resistance. While accumulating research has indicated several underlying factors contributing to sunitinib resistance, the precise mechanisms in renal cell carcinoma are still unclear. Methods RNA sequencing and m6A sequencing were used to screen for functional genes involved in sunitinib resistance. In vitro and in vivo experiments were carried out and patient samples and clinical information were obtained for clinical analysis. Results We identified a tumor necrosis factor receptor-associated factor, TRAF1, that was significantly increased in sunitinib-resistant cells, resistant cell-derived xenograft (CDX-R) models and clinical patients with sunitinib resistance. Silencing TRAF1 increased sunitinib-induced apoptotic and antiangiogenic effects. Mechanistically, the upregulated level of TRAF1 in sunitinib-resistant cells was derived from increased TRAF1 RNA stability, which was caused by an increased level of N6-methyladenosine (m6A) in a METTL14-dependent manner. Moreover, in vivo adeno-associated virus 9 (AAV9) -mediated transduction of TRAF1 suppressed the sunitinib-induced apoptotic and antiangiogenic effects in the CDX models, whereas knockdown of TRAF1 effectively resensitized the sunitinib-resistant CDXs to sunitinib treatment. Conclusions Overexpression of TRAF1 promotes sunitinib resistance by modulating apoptotic and angiogenic pathways in a METTL14-dependent manner. Targeting TRAF1 and its pathways may be a novel pharmaceutical intervention for sunitinib-treated patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01549-1.
Collapse
Affiliation(s)
- Yuanlei Chen
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Zeyi Lu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Chao Qi
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Chenhao Yu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Yang Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Wang Huan
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Ruyue Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Wenqin Luo
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Danyang Shen
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Lifeng Ding
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Liangliang Ren
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Haiyun Xie
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Dingwei Xue
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Mingchao Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Kangxin Ni
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China
| | - Liqun Xia
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China.
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, 310058, China.
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun Road, Hangzhou, 310016, China.
| |
Collapse
|
217
|
Liu J, Zhao W, Zhang L, Wang X. The emerging roles of N6-methyladenosine (m6A)-modified long non-coding RNAs in human cancers. Cell Death Dis 2022; 8:255. [PMID: 35534472 PMCID: PMC9085772 DOI: 10.1038/s41420-022-01050-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/16/2022]
Abstract
N6-methyladenosine (m6A) epitranscriptional modifications widely exist in RNA, which play critical roles in RNA metabolism and biogenesis processes. Long non-coding RNAs (lncRNAs) are class of non-coding RNAs longer than 200 nucleotides without protein-coding ability. LncRNAs participate in a large number of vital biological progressions. With the great improvement of molecular biology, m6A and lncRNAs are attracting more attention from researchers and scholars. In this review, we overview the current status of m6A and lncRNAs based on the latest research, and propose some viewpoints for future research perspectives.
Collapse
Affiliation(s)
- Jingwen Liu
- The School and Hospital of Stomatology, Tianjin Medical University, Qixiangtai Road, No. 12, Tianjin, 300070, P.R. China
| | - Wei Zhao
- The School and Hospital of Stomatology, Tianjin Medical University, Qixiangtai Road, No. 12, Tianjin, 300070, P.R. China
| | - Leyu Zhang
- The School and Hospital of Stomatology, Tianjin Medical University, Qixiangtai Road, No. 12, Tianjin, 300070, P.R. China
| | - Xi Wang
- The School and Hospital of Stomatology, Tianjin Medical University, Qixiangtai Road, No. 12, Tianjin, 300070, P.R. China.
| |
Collapse
|
218
|
Feng KL, Diao N, Zhou ZW, Fang CK, Wang JN, Zhang Y, Luo R, Zhong C. CircFGGY Inhibits Cell Growth, Invasion and Epithelial-Mesenchymal Transition of Hepatocellular Carcinoma via Regulating the miR-545-3p/Smad7 Axis. Front Cell Dev Biol 2022; 10:850708. [PMID: 35592246 PMCID: PMC9110866 DOI: 10.3389/fcell.2022.850708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 04/20/2022] [Indexed: 11/23/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide. Circular RNAs (circRNAs) play critical roles in the progression of HCC. However, the role of the newly identified circFGGY (hsa_circ_0006633) in the development and progression of HCC has not been explored. In this study, we found that circFGGY was significantly downregulated in tumor compared with that in adjacent normal liver tissues of patients with HCC. HCC patients with low circFGGY expression had poor overall survival after hepatectomy. Moreover, it was found that circFGGY could inhibit the proliferation, invasion and epithelial-mesenchymal transition of HCC both in vivo and in vitro. Mechanistically, circFGGY promoted the expression of Smad7, a well-known suppressor of the transforming growth factor-β signaling pathway. In addition, miR-545-3p, a tumor promoter targeting both circFGGY and Smad7, suppressed the upregulation of Smad7 caused by circFGGY overexpression. Collectively, our data revealed that circFGGY inhibits the proliferation and invasion of HCC cells by sponging miR-545-3p and promote the expression of Smad7, indicating that circFGGY functions as a tumor suppressor and could be a prognostic biomarker for HCC.
Collapse
Affiliation(s)
- Kun-Liang Feng
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Na Diao
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhai-Wen Zhou
- Department of Radiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chong-Kai Fang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ji-Nan Wang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ying Zhang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Rui Luo
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chong Zhong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Chong Zhong,
| |
Collapse
|
219
|
Chen Z, He L, Zhao L, Zhang G, Wang Z, Zhu P, Liu B. circREEP3 Drives Colorectal Cancer Progression via Activation of FKBP10 Transcription and Restriction of Antitumor Immunity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105160. [PMID: 35233964 PMCID: PMC9069384 DOI: 10.1002/advs.202105160] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/10/2022] [Indexed: 06/12/2023]
Abstract
Colorectal cancer (CRC) is one of the most common tumors around the world. Circular RNA is widely involved in tumor progression via unclear mechanisms. Here, circREEP3 is found to be upregulated in CRC tissues. circREEP3 upregulation predicts poor patient survival. circREEP3 knockout suppresses CRC tumorigenesis and metastasis, and impairs stem cell-like phenotype. Mechanistically, circREEP3 recruits the chromatin remodeling protein CHD7 to FKBP10 promoter and activates its transcription. Moreover, circREEP3 restricts RIG-1-dependent antitumor immunity. FKBP10 is highly expressed in CRC tissues and associated with poor prognosis. FKBP10 ectopic expression partially rescues the potential of proliferation and metastasis in circREEP3-deficient CRC cells. Thus, the findings support circREEP3-FKBP10 axis drives CRC progression and may be a critical prognostic marker.
Collapse
Affiliation(s)
- Zhenzhen Chen
- School of Life SciencesZhengzhou UniversityZhengzhou450001China
| | - Luyun He
- Department of PathophysiologySchool of Basic Medical SciencesZhengzhou UniversityZhengzhou450001China
| | - Liangbo Zhao
- School of Life SciencesZhengzhou UniversityZhengzhou450001China
| | - Guangtan Zhang
- Department of Gastrointestinal SurgeryHenan Provincial People's HospitalPeople's Hospital of Henan UniversityPeople's Hospital of Zhengzhou UniversityZhengzhou450003China
| | - Zhiwei Wang
- School of Life SciencesZhengzhou UniversityZhengzhou450001China
| | - Pingping Zhu
- School of Life SciencesZhengzhou UniversityZhengzhou450001China
| | - Benyu Liu
- Research Center of Basic MedicineAcademy of Medical SciencesZhengzhou UniversityZhengzhou450001China
| |
Collapse
|
220
|
Zhang Y, Zhang X, Xu Y, Fang S, Ji Y, Lu L, Xu W, Qian H, Liang ZF. Circular RNA and Its Roles in the Occurrence, Development, Diagnosis of Cancer. Front Oncol 2022; 12:845703. [PMID: 35463362 PMCID: PMC9021756 DOI: 10.3389/fonc.2022.845703] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/14/2022] [Indexed: 12/19/2022] Open
Abstract
Circular RNAs (circRNAs) are non-coding single-stranded covalently closed circular RNA, mainly produced by reverse splicing of exons of precursor mRNAs (pre-mRNAs). The characteristics of high abundance, strong specificity, and good stability of circRNAs have been discovered. A large number of studies have reported its various functions and mechanisms in biological events, such as the occurrence and development of cancer. In this review, we focus on the classification, characterization, biogenesis, functions of circRNAs, and the latest advances in cancer research. The development of circRNAs as biomarkers in cancer diagnosis and treatment also provides new ideas for studying circRNAs research.
Collapse
Affiliation(s)
- Yue Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yumeng Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shikun Fang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ying Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ling Lu
- Child Healthcare Department, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhao Feng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| |
Collapse
|
221
|
Specific Gain and Loss of Co-Expression Modules in Long-Lived Individuals Indicate a Role of circRNAs in Human Longevity. Genes (Basel) 2022; 13:genes13050749. [PMID: 35627134 PMCID: PMC9140997 DOI: 10.3390/genes13050749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/18/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Deep RNA sequencing of 164 blood samples collected from long-lived families was performed to investigate the expression patterns of circular RNAs (circRNAs). Unlike that observed in previous studies, circRNA expression in long-lived elderly individuals (98.3 ± 3.4 year) did not exhibit an age-accumulating pattern. Based on weighted circRNA co-expression network analysis, we found that longevous elders specifically gained eight but lost seven conserved circRNA-circRNA co-expression modules (c-CCMs) compared with normal elder controls (spouses of offspring of long-lived individuals, age = 59.3 ± 5.8 year). Further analysis showed that these modules were associated with healthy aging-related pathways. These results together suggest an important role of circRNAs in regulating human lifespan extension.
Collapse
|
222
|
Mechanism of RNA circHIPK3 Involved in Resistance of Lung Cancer Cells to Gefitinib. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4541918. [PMID: 35496045 PMCID: PMC9042616 DOI: 10.1155/2022/4541918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/14/2022] [Accepted: 02/19/2022] [Indexed: 01/03/2023]
Abstract
To study the mechanism of circular ribonucleic acid (RNA) circHIPK3 involved in the resistance of lung cancer cells to gefitinib, 110 patients with lung cancer were recruited as the research objects, and the tumor tissue and para-cancerous tissue of each patient's surgical specimens were collected and paraffinized to detect the expression of circHIPK3 in different tissues. Gefitinib drug-resistant cell line of lung cancer was constructed with gefitinib to detect cell apoptosis under different conditions. As a result, the relative expression of circHIPK3 in patients with tumor diameter no less than 3 cm was dramatically inferior to that in patients with tumor diameter less than 3 cm (P < 0.05). The relative expression of circHIPK3 in patients with TNM stage II/III was dramatically inferior to that in patients with tumor, node, and metastasis (TNM) stage I (P < 0.05). Expression of circHIPK3 in patients with lymph node metastasis was dramatically inferior to that in patients without lymph node metastasis (P < 0.05). Of the lung cancer tissues of patients with different TNM stages, only six patients had high expression, and the remaining 104 patients had low expression. Moreover, electrophoresis revealed that circHIPK3 can only be amplified in cDNA, but not in gDNA. Gefitinib-mediated apoptosis rate of lung cancer drug-resistant cell lines decreased notably. In summary, the circular RNA circHIPK3 may have a notably low expression in lung cancer tissues, whose low expression had a certain enhancement effect on the drug resistance of lung adenocarcinoma cells to gefitinib.
Collapse
|
223
|
Song H, Tian D, Sun J, Mao X, Kong W, Xu D, Ji Y, Qiu B, Zhan M, Wang J. circFAM120B functions as a tumor suppressor in esophageal squamous cell carcinoma via the miR-661/PPM1L axis and the PKR/p38 MAPK/EMT pathway. Cell Death Dis 2022; 13:361. [PMID: 35436983 PMCID: PMC9016076 DOI: 10.1038/s41419-022-04818-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/18/2022] [Accepted: 03/31/2022] [Indexed: 02/07/2023]
Abstract
Extensive changes of circRNA expression underscore their essential contributions to multiple hallmarks of cancers; however, their functions and mechanisms of action in esophageal squamous cell carcinoma (ESCC) remain undetermined. Here, we adopted a three-stage approach by first screening for significantly differentially expressed circRNAs in ESCC and performing an external validation study, followed by the functional analyses. The properties of circRNAs were evaluated using Sanger sequencing, RNase R digestion, actinomycin D treatment, subcellular localization analysis, and fluorescence in situ hybridization. Target transcripts were predicted using online tools and verified by dual-luciferase, RNA immunoprecipitation, qRT-PCR, and western blot. Biotin-labeled RNA-protein pull-down, mass spectrometry, and RNA immunoprecipitation were employed to identify proteins interacting with circRNAs. Gain- and loss-of-function experiments were performed to uncover the roles of circRNAs, their target genes, and binding proteins in the proliferation, metastasis, and invasion. We observed that circFAM120B (hsa_circ_0001666) was frequently downregulated in cancer tissues and patient plasma, and its expression level was related to overall survival in ESCC patients. Overexpression of circFAM120B inhibited the proliferation, metastasis, and invasion of ESCC while silencing it enhanced malignant phenotypes. Mechanistically, circFAM120B was predominantly located in the cytoplasm, guarantying its sponging for miR-661 to restore the expression of PPM1L, a tumor suppressor. We observed that circFAM120B could reduce the stability of RNA-dependent protein kinase (PKR) by promoting its ubiquitination-dependent degradation and subsequently regulating the p38 MAPK signaling pathway, resulting in the repression of EMTs in ESCC cells. Our findings suggest that circFAM120B is a promising biomarker of ESCC, which acts as a tumor suppressor via the circFAM120B/miR-661/PPM1L axis and PKR/p38 MAPK/EMT pathway, supporting its significance as a candidate therapeutic target.
Collapse
Affiliation(s)
- Huan Song
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Dan Tian
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Jian Sun
- Department of Thoracic Surgery, The First People's Hospital of Yancheng and Yancheng Clinical College of Xuzhou Medical University, Yancheng, 224001, China
| | - Xuhua Mao
- Department of Clinical Laboratory, Yixing People's Hospital, Wuxi, 214200, China
| | - Weimin Kong
- Department of Thoracic Surgery, The First People's Hospital of Yancheng and Yancheng Clinical College of Xuzhou Medical University, Yancheng, 224001, China
| | - Dian Xu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Ye Ji
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Beibei Qiu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Mengyao Zhan
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Jianming Wang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China. .,Department of Epidemiology, Gusu School, Nanjing Medical University, Nanjing, 211166, China.
| |
Collapse
|
224
|
Yang R, Yu S, Xu T, Zhang J, Wu S. Emerging role of RNA sensors in tumor microenvironment and immunotherapy. J Hematol Oncol 2022; 15:43. [PMID: 35413927 PMCID: PMC9006576 DOI: 10.1186/s13045-022-01261-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 04/01/2022] [Indexed: 12/16/2022] Open
Abstract
RNA sensors detect foreign and endogenous RNAs to protect the host by initiating innate and adaptive immune response. In tumor microenvironment (TME), activation of RNA sensors induces tumor-inhibitory cytotoxic T lymphocyte responses and inhibits the activity of immunosuppressive cells though stimulating type I IFN signaling pathway. These characteristics allow RNA sensors to be prospective targets in tumor immunotherapy. Therefore, a comprehensive understanding of the roles of RNA sensors in TME could provide new insight into the antitumor immunotherapy. Moreover, RNA sensors could be prominent triggering targets to synergize with immunotherapies. In this review, we highlight the diverse mechanisms of RNA sensors in cancer immunity and their emerging contributions in cancer immunotherapy, including monotherapy with RNA sensor agonists, as well as combination with chemotherapy, radiotherapy, immune checkpoint blockade or cancer vaccine.
Collapse
Affiliation(s)
- Rui Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Sihui Yu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Tianhan Xu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jiawen Zhang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China. .,Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
| |
Collapse
|
225
|
Chen C, Xia C, Tang H, Jiang Y, Wang S, Zhang X, Huang T, Yuan X, Wang J, Peng L. Circular RNAs Involve in Immunity of Digestive Cancers From Bench to Bedside: A Review. Front Immunol 2022; 13:833058. [PMID: 35464462 PMCID: PMC9020258 DOI: 10.3389/fimmu.2022.833058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/01/2022] [Indexed: 12/12/2022] Open
Abstract
The immune system plays a complex role in tumor formation and development. On the one hand, immune surveillance can inhibit the growth of tumors; on the other hand, immune evasion of tumors can create conditions conducive for tumor development and growth. CircRNAs are endogenous non-coding RNAs with a covalently closed loop structure that are abundantly expressed in eukaryotic organisms. They are characterized by stable structure, rich diversity, and high evolutionary conservation. In particular, circRNAs play a vital role in the occurrence, development, and treatment of tumors through their unique functions. Recently, the incidence and mortality of digestive cancers, especially those of gastric cancer, colorectal cancer, and liver cancer, have remained high. However, the functions of circRNAs in digestive cancers immunity are less known. The relationship between circRNAs and digestive tumor immunity is systematically discussed in our paper for the first time. CircRNA can influence the immune microenvironment of gastrointestinal tumors to promote their occurrence and development by acting as a miRNA molecular sponge, interacting with proteins, and regulating selective splicing. The circRNA vaccine even provides a new idea for tumor immunotherapy. Future studies should be focused on the location, transportation, and degradation mechanisms of circRNA in living cells and the relationship between circRNA and tumor immunity. This paper provides a new idea for the diagnosis and treatment of gastrointestinal tumors.
Collapse
Affiliation(s)
- Chunyue Chen
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Congcong Xia
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Hao Tang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yirun Jiang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Shan Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Xin Zhang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Tao Huang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Xiaoqing Yuan
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Breast Tumour Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Junpu Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Li Peng, ; Junpu Wang,
| | - Li Peng
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Li Peng, ; Junpu Wang,
| |
Collapse
|
226
|
Identification of Key CircRNAs Related to Pulmonary Tuberculosis Based on Bioinformatics Analysis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1717784. [PMID: 35419455 PMCID: PMC9001091 DOI: 10.1155/2022/1717784] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/10/2022] [Accepted: 03/01/2022] [Indexed: 12/14/2022]
Abstract
Pulmonary tuberculosis (TB) is a chronic infectious disease that is caused by respiratory infections, principally Mycobacterium tuberculosis. Increasingly, studies have shown that circular (circ)RNAs play regulatory roles in different diseases through different mechanisms. However, their roles and potential regulatory mechanisms in pulmonary TB remain unclear. In this study, we analyzed circRNA sequencing data from adjacent normal and diseased tissues from pulmonary TB patients and analyzed the differentially expressed genes. We then constructed machine learning models and used single-factor analysis to identify hub circRNAs. We downloaded the pulmonary TB micro (mi)RNA (GSE29190) and mRNA (GSE83456) gene expression datasets from the Gene Expression Omnibus database and performed differential expression analysis to determine the differentially expressed miRNAs and mRNAs. We also constructed a circRNA–miRNA–mRNA interaction network using Cytoscape. Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway analysis were used to predict the biological functions of the identified RNAs and determine hub genes. Then, the STRING database and cytoHubba were used to construct protein-protein interaction networks. The results showed 125 differentially expressed circRNAs in the adjacent normal and diseased tissues of pulmonary TB patients. Among them, we identified three hub genes associated with the development of pulmonary TB: hsa_circ_0007919 (upregulated), hsa_circ_0002419 (downregulated), and hsa_circ_0005521 (downregulated). Through further screening, we determined 16 mRNAs of potential downstream genes for hsa-miR-409-5p and hsa_circ_0005521 and established an interaction network. This network may have important roles in the occurrence and development of pulmonary TB. We constructed a model with 100% prediction accuracy by machine learning and single-factor analysis. We constructed a protein-protein interaction network among the top 50 hub mRNAs, with FBXW7 scoring the highest and SOCS3 the second highest. These results may provide a new reference for the identification of candidate markers for the early diagnosis and treatment of pulmonary TB.
Collapse
|
227
|
Mu Y, Xie F, Yang D, Xu G. CircRNA6783 Inhibits Cell Proliferation and Promotes Apoptosis in Lung Adenocarcinoma. Cancer Manag Res 2022; 14:1229-1236. [PMID: 35345604 PMCID: PMC8957399 DOI: 10.2147/cmar.s346616] [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: 10/28/2021] [Accepted: 03/11/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Circular RNA (circRNA) serves an important role in tumour genesis and development. But, little is known about its role in lung adenocarcinoma (LA). This study aimed to investigate circRNA6783 expression in peripheral whole blood (PWB) of LA and controls and explore its effect on proliferation and apoptosis in human lung adenocarcinoma cells (LAC). Patients and Methods The levels of circRNA6783 in LA cell lines and peripheral whole blood (PWB) of 40 patients and 30 controls were detected by real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR). In order to explore the effect of circRNA6783 on LA behavior, we overexpressed circRNA6783 in NCI-H1975 cells. The impact on the proliferation of tumor cells was then examined by Cell Counting Kit 8 (CCK8) assay, and the effects on apoptosis in the cell line were detected using flow cytometry. Results The expression levels of circRNA6783 were significantly higher in LA cell lines and PWB (P < 0.05). The diagnostic value of the area under the receiver operating characteristic curve (AUC) was 0.830, with a sensitivity of 60% and specificity of 96.7%. In addition, functional experiments showed that overexpression of circRNA6783 restrained cell proliferation, significantly increased spontaneous apoptosis. Conclusion CircRNA6783 was upregulated in LA PWB. In vitro assessment demonstrated that circRNA6783 could act as a potential biomarker for LA diagnosis.
Collapse
Affiliation(s)
- Yinyu Mu
- Department of Clinical Laboratory, Ningbo Medical Centre, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, 315040, People's Republic of China
| | - Fuyi Xie
- Department of Clinical Laboratory, Ningbo Medical Centre, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, 315040, People's Republic of China
| | - Dongdong Yang
- Department of Clinical Laboratory, Ningbo Medical Centre, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, 315040, People's Republic of China
| | - Guodong Xu
- Department of Cardiothoracic Surgery, Ningbo Medical Centre, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, 315040, People's Republic of China
| |
Collapse
|
228
|
CircFOXK2 enhances tumorigenesis and immune evasion in non-small cell lung cancer by miR-485-5p/PD-L1 axis. Anticancer Drugs 2022; 33:437-447. [PMID: 35324518 DOI: 10.1097/cad.0000000000001287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) serve a key role in lots of cancers. The outcomes of upregulated circular RNA forkhead box K2 (circFOXK2) on non-small cell lung cancer (NSCLC) persisted uncertainly. In this study, the role of circFOXK2 in NSCLC was inspected. METHODS The abundances of circFOXK2, microRNA-485-5p (miR-485-5p) and programmed cell death ligand-1 (PD-L1) were confirmed by quantitative real-time PCR and western blot. Cell counting kit-8 (CCK-8) assay and clonogenic assay were accomplished to conclude the proliferation of NSCLC cells. Wound healing and transwell assays were implemented to evaluate cell migration and invasion. Lactate dehydrogenase (LDH) cytotoxicity assay was enforced to quantify the cytotoxicity of CD8+ T cells. Flow cytometry assay was employed to detect apoptosis. Besides, the mice experiments were utilized for in vivo tumorigenesis analysis. Dual-luciferase reporter assay was carried out to reveal the associations between miR-485-5p and circFOXK2 or PD-L1. RESULTS CircFOXK2 and PD-L1 levels were augmented in NSCLC. CircFOXK2 targeted miR-485-5p, which could bind to PD-L1. CircFOXK2 served a key role in NSCLC tumorigenesis and cytotoxicity of CD8+ T cells. MiR-485-5p inhibition or PD-L1 overexpression abolished the inhibitory effects of circFOXK2 lack on NSCLC tumorigenesis and cytotoxicity of CD8+ T cells. CONCLUSION CircFOXK2 sponged miR-485-5p to stimulate PD-L1 and expedited NSCLC development.
Collapse
|
229
|
Interactions of circRNAs with methylation: An important aspect of circRNA biogenesis and function (Review). Mol Med Rep 2022; 25:169. [PMID: 35302170 PMCID: PMC8971914 DOI: 10.3892/mmr.2022.12685] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/14/2022] [Indexed: 11/15/2022] Open
Abstract
Circular RNA (circRNA) molecules are noncoding RNAs with unique circular covalently closed structures that contribute to gene expression regulation, protein translation and act as microRNA sponges. circRNAs also have important roles in human disease, particularly tumorigenesis and antitumor processes. Methylation is an epigenetic modification that regulates the expression and roles of DNA and coding RNA and their interactions, as well as of noncoding RNA molecules. Previous studies have focused on the effects of methylation modification on circRNA expression, transport, stability, translation and degradation of circRNAs, as well as how circRNA methylation occurs and the influence of circRNAs on methylation modification processes. circRNA and methylation can also regulate disease pathogenesis via these interactions. In the present study, we define the relationship between circRNAs and methylation, as well as the functions and mechanisms of their interactions during disease progression.
Collapse
|
230
|
Wang X, Li R, Feng L, Wang J, Qi Q, Wei W, Yu Z. Hsa_circ_0001666 promotes non-small cell lung cancer migration and invasion through miR-1184/miR-548I/AGO1 axis. Mol Ther Oncolytics 2022; 24:597-611. [PMID: 35284630 PMCID: PMC8892028 DOI: 10.1016/j.omto.2022.02.011] [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: 09/29/2021] [Accepted: 02/11/2022] [Indexed: 11/03/2022] Open
Abstract
Accumulating evidence has revealed that the dysregulation of circular RNAs (circRNAs) plays crucial roles in the occurrence and progression of cancers. However, the aberrant expression profile and dysfunction of circRNAs in non-small cell lung cancer (NSCLC) have not been fully explored. Herein, we discovered that a circRNA, hsa_circ_0001666 (circ0001666), was highly expressed in NSCLC tissues and cell lines, and it was positively correlated with NSCLC tumor pathological grade and lymph node metastasis. Moreover, Kaplan-Meier survival analysis implied that NSCLC patients with high circ0001666 expression were negatively correlated with favorable survival. Functionally, circ0001666 could promote migration and invasion of NSCLC cells in vitro and in vivo. Mechanistically, circ0001666 could act as a sponge to miR-1184/miR-548I and upregulate the expression of AGO1, thereby promoting the activation of the phosphatidylinositol 3-kinase (PI3K)/AKT/mTOR signaling pathway in NSCLC cells. Collectively, these findings demonstrated that circ0001666 could serve as an oncogene to promote the migration and invasion of NSCLC via a novel miR-1184/miR-548I/AGO1 axis, which might be a promising therapeutic target for NSCLC treatment.
Collapse
Affiliation(s)
- Xueting Wang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Rui Li
- Health Management Center, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Lingxin Feng
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Jing Wang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Qi Qi
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Wenjie Wei
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhuang Yu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| |
Collapse
|
231
|
CircRHBDD1 augments metabolic rewiring and restricts immunotherapy efficacy via m 6A modification in hepatocellular carcinoma. Mol Ther Oncolytics 2022; 24:755-771. [PMID: 35317519 PMCID: PMC8908059 DOI: 10.1016/j.omto.2022.02.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 02/15/2022] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs are a class of highly conserved RNAs with stable covalently closed circular structures. Metabolic reprogramming of cancer cells reshapes the tumor microenvironment and can suppress antitumor immunity. Here, we discovered a novel circular RNA, termed circRHBDD1, which augments aerobic glycolysis and restricts anti-PD-1 therapy in hepatocellular carcinoma (HCC). Mechanistic studies revealed that circRHBDD1 recruits the m6A reader YTHDF1 to PIK3R1 mRNA and accelerates the translation of PIK3R1 in an m6A-dependent manner. EIF4A3-mediated exon back-splicing contributes to the upregulation of circRHBDD1. Moreover, circRHBDD1 is highly expressed in anti-PD-1 responder HCC patients, and targeting circRHBDD1 improves anti-PD-1 therapy in an immune-competent mouse model. Overall, these findings illustrate the metabolic importance of the circRHBDD1/YTHDF1/PIK3R1 axis in HCC and show that suppression of circRHBDD1 may bolster the efficacy of anti-PD-1 therapy for HCC treatment.
Collapse
|
232
|
Zhang JY, Du Y, Gong LP, Shao YT, Pan LJ, Feng ZY, Pan YH, Huang JT, Wen JY, Sun LP, Chen GF, Chen JN, Shao CK. ebv-circRPMS1 promotes the progression of EBV-associated gastric carcinoma via Sam68-dependent activation of METTL3. Cancer Lett 2022; 535:215646. [PMID: 35304258 DOI: 10.1016/j.canlet.2022.215646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/12/2022] [Accepted: 03/13/2022] [Indexed: 12/12/2022]
Abstract
Epstein-Barr virus (EBV) is a tumor virus that is associated with a variety of neoplasms, including EBV-associated gastric carcinoma (EBVaGC). Recently, EBV was reported to generate various circular RNAs (circRNAs). CircRNAs are important regulators of tumorigenesis by modulating the malignant behaviors of tumor cells. However, to date, the functions of ebv-circRNAs in EBVaGC remain poorly understood. In the present study, we observed high ebv-circRPMS1 expression in EBVaGC and showed that ebv-circRPMS1 promoted the proliferation, migration, and invasion and inhibited the apoptosis of EBVaGC cells. In addition, METTL3 was upregulated in GC cells overexpressing ebv-circRPMS1. Mechanistically, ebv-circRPMS1 bound to Sam68 to facilitate its physical interaction with the METTL3 promotor, resulting in the transactivation of METTL3 and cancer progression. In clinical EBVaGC samples, ebv-circRPMS1 was associated with distant metastasis and a poor prognosis. Based on these findings, ebv-circRPMS1 contributed to EBVaGC progression by recruiting Sam68 to the METTL3 promoter to induce METTL3 expression. ebv-circRPMS1, Sam68, and METTL3 might serve as therapeutic targets for EBVaGC.
Collapse
Affiliation(s)
- Jing-Yue Zhang
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yu Du
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Li-Ping Gong
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yi-Ting Shao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Li-Jie Pan
- Vaccine Research of Sun Yat-sen University, Guangzhou, 510630, China
| | - Zhi-Ying Feng
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yu-Hang Pan
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Jun-Ting Huang
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
| | - Jing-Yun Wen
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Li-Ping Sun
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Gao-Feng Chen
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Jian-Ning Chen
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
| | - Chun-Kui Shao
- Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
| |
Collapse
|
233
|
Systematic Evaluation Meta-Analysis of the Efficacy of Recombinant Human Endostatin Combined with Gemcitabine and Cisplatin in Non-Small-Cell Lung Cancer. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:3208780. [PMID: 35340250 PMCID: PMC8941552 DOI: 10.1155/2022/3208780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/16/2022] [Accepted: 02/07/2022] [Indexed: 11/18/2022]
Abstract
Objective. To evaluate the efficacy of recombinant human endostatin combined with gemcitabine and cisplatin in the treatment of non-small-cell lung cancer (NSCLC). Methods. The databases of Cochrane Library, Embase, ClinicalTrials, PubMed, HowNet, Wanfang, and VIP were searched to collect randomized controlled trials (RCTs) of recombinant human endostatin combined with gemcitabine and cisplatin (experimental group) and gemcitabine combined with cisplatin (control group) for comparative study. The quality of literature was evaluated by bias risk assessment tools and related scales, and then meta-analysis was performed. Results. A total of 27 RCTs (1646 patients) were included. The results of meta-analysis showed that the effective rate (
< 0.000 01) and benefit rate (
< 0.000 01) of the experimental group were significantly higher than those of the control group, the incidence of leucopenia (
= 0.79), thrombocytopenia (
= 0.39), and gastrointestinal reaction (
= 0.85) were not statistically significant. Conclusion. The combination of recombinant human endostatin, gemcitabine, and cisplatin can increase the efficacy and safety of NSCLC patients.
Collapse
|
234
|
Huang X, Guo H, Wang L, Yang L, Shao Z, Zhang W. Recent advances in crosstalk between N6-methyladenosine (m6A) modification and circular RNAs in cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:947-955. [PMID: 35211355 PMCID: PMC8829442 DOI: 10.1016/j.omtn.2022.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
N6-methyladenosine (m6A), as the most common RNA modification, plays a vital role in the development of cancers. Circular RNAs (circRNAs) are a class of single-stranded covalently closed RNA molecules. Recently, m6A modification has been identified as performing biological functions for regulating circRNAs. Increasing evidence also shows that circRNAs are involved in cancer progression by targeting m6A regulators. In this review, we describe the functional crosstalk between m6A and circRNAs, and illustrate their roles in cancer development. m6A methylation mediates the biogenesis, stability, and cytoplasmic export of circRNAs in different cancer types. Moreover, circRNAs regulate the expression of m6A regulators, participate in the degradation of m6A regulators, and regulate the m6A modification of target mRNAs. Finally, we discuss the potential applications and future research directions of m6A modification and circRNAs in cancer. Further understanding of the biological roles of m6A and circRNAs will provide new insight into the diagnosis and treatment of cancer patients.
Collapse
Affiliation(s)
- Xin Huang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road 1277, Wuhan 430022, China
| | - Haoyu Guo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road 1277, Wuhan 430022, China
| | - Lutong Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road 1277, Wuhan 430022, China
| | - Lingkai Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road 1277, Wuhan 430022, China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road 1277, Wuhan 430022, China
| | - Weiyue Zhang
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| |
Collapse
|
235
|
Xu T, He B, Sun H, Xiong M, Nie J, Wang S, Pan Y. Novel insights into the interaction between N6-methyladenosine modification and circular RNA. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:824-837. [PMID: 35141044 PMCID: PMC8807973 DOI: 10.1016/j.omtn.2022.01.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
As the most prevalent type of RNA modification in eukaryotes, N6-methyladenosine (m6A) can modulate RNA fates such as processing, splicing, maturation, export, stability, translation, and degradation. Circular RNAs (circRNAs), a novel type of non-coding RNA (ncRNAs) characterized by a covalently closed loop structure, play an essential role in various physiological and pathological processes. Extensive studies have revealed that m6A modification is widespread in circRNAs and influences their biogenesis and functions. Intriguingly, circRNAs can affect m6A modification by regulating m6A regulatory proteins. In this review, we summarize the characteristics and biological functions of m6A and circRNAs and focus on recent advances in the interaction of m6A modification and circRNAs. In addition, the potential clinical applications of m6A modification and circRNAs in diagnosis and therapeutic targets are discussed.
Collapse
Affiliation(s)
- Tao Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Bangshun He
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Huiling Sun
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Mengqiu Xiong
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Junjie Nie
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Shukui Wang
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Yuqin Pan
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| |
Collapse
|
236
|
Liu Y, Ao X, Yu W, Zhang Y, Wang J. Biogenesis, functions, and clinical implications of circular RNAs in non-small cell lung cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:50-72. [PMID: 34938606 PMCID: PMC8645422 DOI: 10.1016/j.omtn.2021.11.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung cancer (LC) is the leading cause of cancer-related deaths worldwide, with high morbidity and mortality. Non-small cell lung cancer (NSCLC) is a major pathological type of LC and accounts for more than 80% of all cases. Circular RNAs (circRNAs) are a large class of non-coding RNAs (ncRNAs) with covalently closed-loop structures, a high abundance, and tissue-specific expression patterns. They participate in various pathophysiological processes by regulating complex gene networks involved in proliferation, apoptosis, migration, and epithelial-to-mesenchymal transition (EMT), as well as metastasis. A growing number of studies have revealed that the dysregulation of circRNAs contributes to many aspects of cancer progression, such as its occurrence, metastasis, and recurrence, suggesting their great potential as efficient and specific biomarkers in the diagnosis, prognosis, and therapeutic targeting of NSCLC. In this review, we systematically elucidate the characteristics, biogenesis, and functions of circRNAs and focus on their molecular mechanisms in NSCLC progression. Moreover, we highlight their clinical implications in NSCLC treatment.
Collapse
Affiliation(s)
- Ying Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, China.,School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xiang Ao
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Wanpeng Yu
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, China
| | - Jianxun Wang
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| |
Collapse
|
237
|
Pitolli C, Marini A, Sette C, Pagliarini V. Non-Canonical Splicing and Its Implications in Brain Physiology and Cancer. Int J Mol Sci 2022; 23:ijms23052811. [PMID: 35269953 PMCID: PMC8911335 DOI: 10.3390/ijms23052811] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 02/01/2023] Open
Abstract
The advance of experimental and computational techniques has allowed us to highlight the existence of numerous different mechanisms of RNA maturation, which have been so far unknown. Besides canonical splicing, consisting of the removal of introns from pre-mRNA molecules, non-canonical splicing events may occur to further increase the regulatory and coding potential of the human genome. Among these, splicing of microexons, recursive splicing and biogenesis of circular and chimeric RNAs through back-splicing and trans-splicing processes, respectively, all contribute to expanding the repertoire of RNA transcripts with newly acquired regulatory functions. Interestingly, these non-canonical splicing events seem to occur more frequently in the central nervous system, affecting neuronal development and differentiation programs with important implications on brain physiology. Coherently, dysregulation of non-canonical RNA processing events is associated with brain disorders, including brain tumours. Herein, we summarize the current knowledge on molecular and regulatory mechanisms underlying canonical and non-canonical splicing events with particular emphasis on cis-acting elements and trans-acting factors that all together orchestrate splicing catalysis reactions and decisions. Lastly, we review the impact of non-canonical splicing on brain physiology and pathology and how unconventional splicing mechanisms may be targeted or exploited for novel therapeutic strategies in cancer.
Collapse
Affiliation(s)
- Consuelo Pitolli
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, 00168 Rome, Italy; (C.P.); (C.S.)
- GSTEP-Organoids Research Core Facility, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy;
| | - Alberto Marini
- GSTEP-Organoids Research Core Facility, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy;
| | - Claudio Sette
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, 00168 Rome, Italy; (C.P.); (C.S.)
- GSTEP-Organoids Research Core Facility, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy;
| | - Vittoria Pagliarini
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, 00168 Rome, Italy; (C.P.); (C.S.)
- GSTEP-Organoids Research Core Facility, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy;
- Correspondence:
| |
Collapse
|
238
|
Yang C, Wu S, Mou Z, Zhou Q, Dai X, Ou Y, Chen X, Chen Y, Xu C, Hu Y, Zhang L, Zou L, Jin S, Hu J, Mao S, Jiang H. Exosome-derived circTRPS1 promotes malignant phenotype and CD8+ T cell exhaustion in bladder cancer microenvironments. Mol Ther 2022; 30:1054-1070. [PMID: 35038580 PMCID: PMC8899700 DOI: 10.1016/j.ymthe.2022.01.022] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/10/2021] [Accepted: 01/12/2022] [Indexed: 01/22/2023] Open
Abstract
Circular RNAs (circRNAs) play critical roles in different diseases. Exosomes are important intermediates of intercellular communication. While both have been widely reported in cancers, exosome-derived circRNAs are rarely studied. In this work, we identified the differently expressed circRNAs in bladder cancer (BCa) tissue and exosomes through high-throughput sequencing. RNA pull-down, RNA immunoprecipitation, and luciferase reporter assays were used to investigate the interactions between specific circRNAs, microRNAs (miRNAs), and mRNAs. Wound-healing, Transwell, Cell Counting Kit-8 (CCK8), and colony-formation assays were used to study the biological roles in vitro. Metabolomics were used to explore the mechanism of how specific circRNAs influenced BCa cell behavior. Flow cytometry was used to study how specific circRNAs affected the function of CD8+ T cells in tumor microenvironments. We identified that exosome-derived hsa_circ_0085361 (circTRPS1) was correlated with aggressive phenotypes of BCa cells via sponging miR-141-3p. Metabolomics and RNA sequencing (RNA-seq) identified GLS1-mediated glutamine metabolism was involved in circTRPS1-mediated alterations. Exosomes derived from circTRPS1 knocked down BCa cells, prevented CD8+ T cells from exhaustion, and repressed the malignant phenotype of BCa cells. In conclusion, exosome-derived circTRPS1 from BCa cells can modulate the intracellular reactive oxygen species (ROS) balance and CD8+ T cell exhaustion via the circTRPS1/miR141-3p/GLS1 axis. Our work may provide a potential biomarker and therapeutic target for BCa.
Collapse
Affiliation(s)
- Chen Yang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China; National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China.
| | - Siqi Wu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zezhong Mou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Quan Zhou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiyu Dai
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuxi Ou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xinan Chen
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yiling Chen
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Chenyang Xu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yun Hu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Limin Zhang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Lujia Zou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Shengming Jin
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Jimeng Hu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China.
| | - Shanhua Mao
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China.
| | - Haowen Jiang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China; National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China.
| |
Collapse
|
239
|
Kristensen LS, Jakobsen T, Hager H, Kjems J. The emerging roles of circRNAs in cancer and oncology. Nat Rev Clin Oncol 2022; 19:188-206. [PMID: 34912049 DOI: 10.1038/s41571-021-00585-y] [Citation(s) in RCA: 413] [Impact Index Per Article: 206.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2021] [Indexed: 12/14/2022]
Abstract
Over the past decade, circular RNAs (circRNAs) have emerged as a large class of primarily non-coding RNA molecules, many of which have key roles in cancer development and progression through diverse mechanisms of action. CircRNAs often have tissue-restricted and cancer-specific expression patterns, and accumulating data suggest that these molecules are of potential clinical relevance and utility. In particular, circRNAs have strong potential as diagnostic, prognostic and predictive biomarkers, which is underscored by their detectability in liquid biopsy samples such as in plasma, saliva and urine. However, technical issues in the detection and assessment of circRNAs as well as biological knowledge gaps need to be addressed to move this relatively young field of research forward and bring circRNAs to the forefront of clinical practice. Herein, we review the current knowledge regarding circRNA biogenesis, regulation and functions in cancer as well as their clinical potential as biomarkers, therapeutic agents and drug targets.
Collapse
Affiliation(s)
| | | | - Henrik Hager
- Department of Clinical Pathology, Vejle Hospital, Vejle, Denmark.,Danish Colorectal Cancer Center South, Vejle Hospital, Vejle, Denmark
| | - Jørgen Kjems
- Department of Molecular Biology and Genetics (MBG), Aarhus University, Aarhus C, Denmark. .,Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark.
| |
Collapse
|
240
|
Zhang F, Zhang T, Zhao Z, Ji Y, Peng Y, Zhao L. Circular RNA Eps15-homology domain containing protein 2 motivates proliferation, glycolysis but refrains autophagy in non-small cell lung cancer via crosstalk with microRNA-3186-3p and forkhead box K1. Bioengineered 2022; 13:6464-6475. [PMID: 35220908 PMCID: PMC8973962 DOI: 10.1080/21655979.2022.2031385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/15/2022] [Accepted: 01/15/2022] [Indexed: 01/15/2023] Open
Abstract
Numerous studies have clarified the involvement of circular RNAs (circRNAs) in modulating malignant behavior of non-small cell lung cancer (NSCLC), while the concrete mechanism is not completely elucidated. The aim of the study was to figure out the latent functions and molecular mechanisms of circRNA Eps15-homology domain containing protein 2 (EHD2) on NSCLC proliferation, glycolysis and autophagy. The results clarified in NSCLC elevated expression of circEHD2 and declined expression of microRNA (miR)-3186-3p. Repressive circEHD2 or enhancive miR-3186-3p facilitated cell apoptosis rate and autophagy substrates LC3BII and Beclin-1, but curbed the colony-formation and DNA replication ability of NSCLC, glucose consumption, lactic acid production, glycolytic rate-limiting enzyme HK-2 and glutamine hydrolase GLS1 and P62, while overexpressed circEHD2 was adverse. Meanwhile, the impacts of repressive and elevated circEHD2 on NSCLC were turned around via reduced miR-3186-3p or forkhead box k1 (FOXK1) separately. Mechanically, FOXK1 was augmented via circEHD2's competitive integration of miR-3186-3p. Depressive circEHD2 refrained NSCLC tumor growth, which was accelerated via enhancive one. All in all, circEHD2 accelerates the proliferation and glycolysis of NSCLC, but refrains autophagy and apoptosis via strengthening FOXK1 via the adsorption of miR-3186-3p, which is supposed to be a latent molecular target for NSCLC therapy later.
Collapse
Affiliation(s)
- Fan Zhang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Tieying Zhang
- Department of Medical Oncology, JiLin Province People’s Hospital, Changchun City, JiLin Province, 130021, China
| | - ZiRan Zhao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Ying Ji
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Yue Peng
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Liang Zhao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| |
Collapse
|
241
|
Zhou Z, Zhu T, Chen S, Qin S, Huang Y, Liu D. Systematic Analysis of the Expression Profile and Prognostic Significance of the IGF2BP Family in Lung Adenocarcinoma. Curr Cancer Drug Targets 2022; 22:340-350. [PMID: 35232349 DOI: 10.2174/1568009622666220301145013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/02/2021] [Accepted: 12/12/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lung adenocarcinoma (LUAD),the most common type of lung cancer associated with poor prognosis, has become a major health problem for human health. IGF2BPs are types of N6-methyladenosine reader proteins, comprising IGF2BP1, IGF2BP2, and IGF2BP3, that promote LUAD progression. However, the expression profiles and prognostic value of IGF2BPs in LUAD remain unclear. OBJECTIVE To analyze the expression profiles and prognostic significance of the IGF2BP family in lung adenocarcinoma. METHODS In our study, we utilized LUAD patient and normal or para-carcinoma tissue data from TCGA database and the GTEx project. Using survival analysis, Kaplan-Meier curves, and Cox proportional hazards model, we analyzed the expression profiles and prognostic significance of the IGF2BP family. RESULTS Patients with high expression levels of IGF2BPs showed significant association with poor overall survival (p < 0.05). Moreover, the somatic mutation rates of IGF2BP1, IGF2BP2, IGF2BP3 were determined as 2.65, 1.59, and 1.76%, respectively, by investigating the genetic mutation. In addition, there were significant associations between TMB and IGF2BP family expression profiles, which positively correlated with the expression of PD-1 (p < 0.05). Cox proportional hazard model for LUAD showed the risk score for IGF2BP1, p-TNM stage, and so forth, all independent prognostic indicators for LUAD patients. Finally, the co-expression genes were obtained to build a PPI network and analyze the hub genes of the IGF2BP family. CONCLUSION Our study provides further insights into the role of the IGF2BP family in LUAD and identifies 10 genes that may be associated with IGF2BPs in LUAD patients.
Collapse
Affiliation(s)
- Zimo Zhou
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tiantong Zhu
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Senxiang Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Sen Qin
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ying Huang
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Da Liu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| |
Collapse
|
242
|
IGF2BP2 promotes gastric cancer progression by regulating the IGF1R-RhoA-ROCK signaling pathway. Cell Signal 2022; 94:110313. [DOI: 10.1016/j.cellsig.2022.110313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 12/12/2022]
|
243
|
Fan Y, Zhou Y, Lou M, Li X, Zhu X, Yuan K. m6A Regulator-Mediated Methylation Modification Patterns and Characterisation of Tumour Microenvironment Infiltration in Non-Small Cell Lung Cancer. J Inflamm Res 2022; 15:1969-1989. [PMID: 35356071 PMCID: PMC8958726 DOI: 10.2147/jir.s356841] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/09/2022] [Indexed: 12/12/2022] Open
Affiliation(s)
- Yongfei Fan
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Yong Zhou
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Ming Lou
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Xinwei Li
- Department of Gastroenterology, Affiliated Cancer Hospital of Bengbu Medical College, Bengbu, People’s Republic of China
| | - Xudong Zhu
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Kai Yuan
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
- Heart and Lung Disease Laboratory, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
- Correspondence: Kai Yuan, Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, No. 29 Xinglong Lane, Changzhou, 213003, Jiangsu Province, People’s Republic of China, Tel +86-13915890721, Email
| |
Collapse
|
244
|
Wang Y, Yan Q, Mo Y, Liu Y, Wang Y, Zhang S, Guo C, Wang F, Li G, Zeng Z, Xiong W. Splicing factor derived circular RNA circCAMSAP1 accelerates nasopharyngeal carcinoma tumorigenesis via a SERPINH1/c-Myc positive feedback loop. Mol Cancer 2022; 21:62. [PMID: 35227262 PMCID: PMC8883650 DOI: 10.1186/s12943-022-01502-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/06/2022] [Indexed: 01/04/2023] Open
Abstract
Background Circular RNAs play an important role in tumor genesis and progression, but they have not been sufficiently studied in patients with nasopharyngeal carcinoma (NPC). Methods The circular RNA, circCAMSAP1, was screened in NPC cells by RNA sequencing analysis. The expression of circCAMSAP1 in NPC tissues was examined by real-time quantitative polymerase chain reaction (RT-qPCR) and in situ hybridization. Wound-healing, transwell, MTT and flow cytometry assays, and nude mouse tumor models were used to explore the effect of circCAMSAP1 on proliferation and metastasis of NPC in vitro or in vivo. The downstream proteins regulated by circCAMSAP1 were screened using mass spectrometry. The interaction between circCAMSAP1 and the SERPINH1 mRNA was identified using the circular RNA immunoprecipitation method and the luciferase reporter assay. The interaction between SERPINH1 and transcription factor c-Myc was verified through Co-immunoprecipitation (Co-IP) and immunofluorescence. The effect of c-Myc on the generation of circCAMSAP1 was examined through RT-qPCR and chromatin immunoprecipitation. Finally, the splicing factors that promote the production of circCAMSAP1 were explored by RT-qPCR and RNA immunoprecipitation (RIP). Results We found that circCAMSAP1 was highly expressed in NPC tissues and promoted NPC proliferation and metastasis. Additionally, circCAMSAP1 promoted SERPINH1 expression through improved SERPINH1 mRNA stability by binding to the 3′-untranslated region (3’UTR) of SERPINH1. Highly expressed SERPINH1 reduced the ubiquitination-degradation rate of c-Myc, causing increased tumorigenesis. Meanwhile, c-Myc, cooperating with splicing factor 10 (SRSF10), could also promote CAMSAP1 pre-mRNA transcription and back-splicing, forming a positive feedback of circCAMSAP1 production, resulting in the proliferation and metastasis of NPC. Conclusions Our findings revealed that circCAMSAP1 promotes NPC proliferation and metastasis by binding to the 3’UTR of SERPINH1, suggesting that the positive feedback of circCAMSAP1-SERPINH1-c-Myc may serve as a prognostic biomarker or therapeutic target in patients with NPC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01502-2.
Collapse
|
245
|
CircCYP24A1 hampered malignant phenotype of renal cancer carcinoma through modulating CMTM-4 expression via sponging miR-421. Cell Death Dis 2022; 13:190. [PMID: 35220395 PMCID: PMC8882186 DOI: 10.1038/s41419-022-04623-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 01/17/2022] [Accepted: 02/07/2022] [Indexed: 01/28/2023]
Abstract
Renal cell carcinoma (RCC) is a lethal urinary malignancy. Circular RNAs (circRNAs) contribute to the malignant phenotype and progression of several types of human cancers, including RCC. In this study, we identified relatively low hsa_circ_0060927 (circCYP24A1) expression in RCC tissue through high-throughput sequencing and RT-qPCR. Fluorescence in situ hybridization (FISH) was used to validate the expression and subcellular localization of circCYP24A1 in RCC tissues. CCK-8, Transwell, EdU, and wound-healing assays indicated that circCYP24A1 overexpression inhibited the proliferation, invasion, and migration of RCC cells. Dual-luciferase reporter, RNA immunoprecipitation (RIP), FISH, and RNA-pulldown assays verified that circCYP24A1 inhibited RCC progression by sponging miR-421, thus inducing CMTM-4 expression. Xenograft assays and metastasis models further indicated that circCYP24A1 significantly inhibited the metastasis and proliferation of RCC cells in vivo. Taken together, circCYP24A1 is a prognosis-related circRNA in RCC that functions through the circCYP24A1/miR-421/CMTM-4 axis to modulate RCC progression.
Collapse
|
246
|
Chen X, Zhou M, Yant L, Huang C. Circular RNA in disease: Basic properties and biomedical relevance. WILEY INTERDISCIPLINARY REVIEWS. RNA 2022; 13:e1723. [PMID: 35194939 DOI: 10.1002/wrna.1723] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/15/2021] [Accepted: 01/31/2022] [Indexed: 12/26/2022]
Abstract
Circular RNAs (circRNAs) represent a class of covalently closed RNA molecules with great diversity in molecular features, functions, and regulatory mechanisms. Emerging advances in our understanding of circRNA biogenesis, nuclear export, and stability control have been made very recently. In particular, novel roles of circRNAs in diverse human diseases are increasingly recognized. Various circRNAs have been found to affect many disease-relevant pathways through a diverse array of mechanisms, including forming R-loops, sponging miRNAs or proteins, and translating functional proteins, resulting in different pathological phenotypes. This recent progress calls for a revised view of circRNAs in diseases threatening the lives and health of humans. In this review, we focus on the recently described functional relevance of disease-associated circRNAs as well as the potential of circRNAs in diverse clinical applications. This article is categorized under: RNA in Disease and Development > RNA in Disease Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs.
Collapse
Affiliation(s)
- Xiaolan Chen
- School of Life Sciences, Chongqing University, Chongqing, China.,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, China
| | - Min Zhou
- School of Life Sciences, Chongqing University, Chongqing, China.,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, China
| | - Levi Yant
- Future Food Beacon of Excellence and School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Chuan Huang
- School of Life Sciences, Chongqing University, Chongqing, China.,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, China
| |
Collapse
|
247
|
[Role of circular RNAs in immune-related diseases]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:163-170. [PMID: 35365439 PMCID: PMC8983362 DOI: 10.12122/j.issn.1673-4254.2022.02.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Objective Circular RNAs (circRNAs) are non-coding RNAs (ncRNA) circularized without a 3′ polyadenylation [poly-(A)] tail or a 5′ cap, resulting in a covalently closed loop structure. circRNAs were first discovered in RNA viruses in the 1970s, but only a small number of circRNAs were discovered at that time due to limitations in traditional polyadenylated transcriptome analyses. With the development of specific biochemical and computational methods, recent studies have shown the presence of abundant circRNAs in eukaryotic transcriptomes. circRNAs play vital roles in many physiological and pathological processes, such as acting as miRNA sponges, binding to RNA-binding proteins (RBPs), acting as transcriptional regulatory factors, and even serving as translation templates. Current evidence has shown that circRNAs can be potentially used as excellent biomarkers for diagnosis, therapeutic effect evaluation, and prognostic assessment of a variety of diseases, and they may also provide effective therapeutic targets due to their stability and tissue and development-stage specificity. This review focuses on the properties of circRNAs and their immune relationship to disease, and explores the role of circRNAs in immune-related diseases and the directions of future research.
Collapse
|
248
|
Deng LJ, Deng WQ, Fan SR, Chen MF, Qi M, Lyu WY, Qi Q, Tiwari AK, Chen JX, Zhang DM, Chen ZS. m6A modification: recent advances, anticancer targeted drug discovery and beyond. Mol Cancer 2022; 21:52. [PMID: 35164788 PMCID: PMC8842557 DOI: 10.1186/s12943-022-01510-2] [Citation(s) in RCA: 151] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/15/2022] [Indexed: 12/12/2022] Open
Abstract
AbstractAbnormal N6-methyladenosine (m6A) modification is closely associated with the occurrence, development, progression and prognosis of cancer, and aberrant m6A regulators have been identified as novel anticancer drug targets. Both traditional medicine-related approaches and modern drug discovery platforms have been used in an attempt to develop m6A-targeted drugs. Here, we provide an update of the latest findings on m6A modification and the critical roles of m6A modification in cancer progression, and we summarize rational sources for the discovery of m6A-targeted anticancer agents from traditional medicines and computer-based chemosynthetic compounds. This review highlights the potential agents targeting m6A modification for cancer treatment and proposes the advantage of artificial intelligence (AI) in the discovery of m6A-targeting anticancer drugs.
Graphical abstract
Three stages of m6A-targeting anticancer drug discovery: traditional medicine-based natural products, modern chemical modification or synthesis, and artificial intelligence (AI)-assisted approaches for the future.
Collapse
|
249
|
Chen Z, Li L, Li Z, Wang X, Han M, Gao Z, Wang M, Hu G, Xie X, Du H, Xie Z, Zhang H. Identification of key serum biomarkers for the diagnosis and metastatic prediction of osteosarcoma by analysis of immune cell infiltration. Cancer Cell Int 2022; 22:78. [PMID: 35151325 PMCID: PMC8841093 DOI: 10.1186/s12935-022-02500-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/30/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
The role of circular RNAs (circRNAs) and microRNAs (miRNAs) in osteosarcoma (OS) development has not been fully elucidated. Further, the contribution of the immune response to OS progression is not well defined. However, it is known that circRNAs and miRNAs can serve as biomarkers for the diagnosis, prognosis, and therapy of many cancers. Thus, the aim of this study was to identify novel key serum biomarkers for the diagnosis and metastatic prediction of OS by analysis of immune cell infiltration and associated RNA molecules.
Methods
Human OS differentially expressed circRNAs (DEcircRNAs), differentially expressed miRNAs (DEmiRNAs), and differentially expressed mRNAs (DEmRNAs) were identified by analysis of microarray data downloaded from Gene Expression Omnibus (GEO) datasets. Further, characteristic patterns of OS-infiltrating immune cells were analyzed. On this basis, we identified statistically significant transcription factors. Moreover we performed pathway enrichment analysis, constructed protein–protein interaction networks, and devised competitive endogenous RNA (ceRNA) networks. Biological targets of the ceRNA networks were evaluated and potential OS biomarkers confirmed by RT-qPCR analysis of the patients’ serum.
Results
Seven differentially expressed circRNAs, 166 differentially expressed miRNAs, and 175 differentially expressed mRNAs were identified. An evaluation of cellular OS infiltration identified the highest level of infiltration by M0 macrophages, M2 macrophages, and CD8+ T cells, with M0 macrophages and CD8+ T cells as the most prominent. Significant patterns of tumor-infiltrating immune cells were identified by principal component analysis. Moreover, 185 statistically significant transcription factors were associated with OS. Further, in association with immune cell infiltration, hsa-circ-0010220, hsa-miR-326, hsa-miR-338-3p, and FAM98A were identified as potential novel biomarkers for OS diagnosis. Of these, FAM98A had the most promise as a diagnostic marker for OS and OS metastasis. Most importantly, a novel diagnostic model consisting of these four biomarkers (hsa-circ-0010220, hsa-miR-326, hsa-miR-338-3p, and FAM98A) was established with a 0.928 AUC value.
Conclusions
In summary, potential serum biomarkers for OS diagnosis and metastatic prediction were identified based on an analysis of immune cell infiltration. A novel diagnostic model consisting of these four promising serum biomarkers was established. Taken together, the results of this study provide a new perspective by which to understand immunotherapy of OS.
Collapse
|
250
|
Melixetian M, Pelicci PG, Lanfrancone L. Regulation of LncRNAs in Melanoma and Their Functional Roles in the Metastatic Process. Cells 2022; 11:cells11030577. [PMID: 35159386 PMCID: PMC8834033 DOI: 10.3390/cells11030577] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are key regulators of numerous intracellular processes leading to tumorigenesis. They are frequently deregulated in cancer, functioning as oncogenes or tumor suppressors. As they act through multiple mechanisms, it is not surprising that they may exert dual functions in the same tumor. In melanoma, a highly invasive and metastatic tumor with the propensity to rapidly develop drug resistance, lncRNAs play different roles in: (i) guiding the phenotype switch and leading to metastasis formation; (ii) predicting the response of melanoma patients to immunotherapy; (iii) triggering adaptive responses to therapy and acquisition of drug resistance phenotypes. In this review we summarize the most recent findings on the lncRNAs involved in melanoma growth and spreading to distant sites, focusing on their role as biomarkers for disease diagnosis and patient prognosis, or targets for novel therapeutic approaches.
Collapse
Affiliation(s)
- Marine Melixetian
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (M.M.); (P.G.P.)
| | - Pier Giuseppe Pelicci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (M.M.); (P.G.P.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Luisa Lanfrancone
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (M.M.); (P.G.P.)
- Correspondence: ; Tel.: +39-02-94375011
| |
Collapse
|