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Su L, Gou J, Zhou C, Li J, Wu J, Shen L, Jia Y. Knockdown of circ_0076305 decreases the paclitaxel resistance of non-small cell lung cancer cells by regulating TMPRSS4 via miR-936. Toxicol Res (Camb) 2024; 13:tfae102. [PMID: 38993483 PMCID: PMC11234199 DOI: 10.1093/toxres/tfae102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/23/2024] [Accepted: 06/26/2024] [Indexed: 07/13/2024] Open
Abstract
Background Paclitaxel (PTX) is a commonly used as a chemotherapeutic drug for non-small cell lung cancer (NSCLC). Exploring the underlying mechanism of PTX resistance is of great significance for NSCLC treatment. Methods The expression levels of RNA and protein were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot assays. The targeted relationship was confirmed by dual-luciferase reporter assay and RNA-pull down assay. The PTX resistance and cell proliferation were assessed by cell counting kit-8 (CCK-8) assay and 5-Ethynyl-2'-deoxyuridine (EDU) assay, respectively. Cell migration and invasion were analyzed by transwell assays. Cell apoptosis was analyzed by flow cytometry, and cell glycolysis was analyzed using the commercial kits. The role of circular RNA_0076305 (circ_0076305) in regulating the PTX sensitivity in vivo was explored in xenograft tumor model. Results Circ_0076305 was up-regulated in PTX-resistant NSCLC tissues and cells. Mechanically, circ_0076305 bound to microRNA-936 (miR-936), and miR-936 targeted transmembrane serine protease 4 (TMPRSS4). Circ_0076305 could up-regulate TMPRSS4 expression by sponging miR-936 in NSCLC cells. miR-936 knockdown or TMPRSS4 overexpression reversed the anti-tumor effects of circ_0076305 knockdown in NSCLC cells with PTX treatment. Circ_0076305 silencing increased the PTX sensitivity of xenograft tumors in vivo. Conclusion Circ_0076305 silencing promoted PTX sensitivity by targeting miR-936/TMPRSS4 axis in NSCLC cells.
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Affiliation(s)
- Lin Su
- Department of Pharmacy, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
| | - Jiaxue Gou
- Department of Pharmacy, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
| | - Chunyan Zhou
- Department of Pharmacy, Kashgar District Second People's Hospital, No. 1, Health Road, Kashgar, Xinjiang Uygur Autonomous Region 844000, China
| | - Jieping Li
- Center of Hematologic Oncology, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
| | - Jing Wu
- Center of Hematologic Oncology, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
| | - Lili Shen
- Center of Radiation Oncology, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
| | - Yimin Jia
- Department of Pharmacy, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing 400030, China
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2
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Li Q, Zhang Y, Jin P, Chen Y, Zhang C, Geng X, Mun KS, Phang KC. New insights into the potential of exosomal circular RNAs in mediating cancer chemotherapy resistance and their clinical applications. Biomed Pharmacother 2024; 177:117027. [PMID: 38925018 DOI: 10.1016/j.biopha.2024.117027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024] Open
Abstract
Chemotherapy resistance typically leads to tumour recurrence and is a major obstacle to cancer treatment. Increasing numbers of circular RNAs (circRNAs) have been confirmed to be abnormally expressed in various tumours, where they participate in the malignant progression of tumours, and play important roles in regulating the sensitivity of tumours to chemotherapy drugs. As exosomes mediate intercellular communication, they are rich in circRNAs and exhibit a specific RNA cargo sorting mechanism. By carrying and delivering circRNAs, exosomes can promote the efflux of chemotherapeutic drugs and reduce intracellular drug concentrations in recipient cells, thus affecting the cell cycle, apoptosis, autophagy, angiogenesis, invasion and migration. The mechanisms that affect the phenotype of tumour stem cells, epithelial-mesenchymal transformation and DNA damage repair also mediate chemotherapy resistance in many tumours. Exosomal circRNAs are diagnostic biomarkers and potential therapeutic targets for reversing chemotherapy resistance in tumours. Currently, the rise of new fields, such as machine learning and artificial intelligence, and new technologies such as biosensors, multimolecular diagnostic systems and platforms based on circRNAs, as well as the application of exosome-based vaccines, has provided novel ideas for precision cancer treatment. In this review, the recent progress in understanding how exosomal circRNAs mediate tumour chemotherapy resistance is reviewed, and the potential of exosomal circRNAs in tumour diagnosis, treatment and immune regulation is discussed, providing new ideas for inhibiting tumour chemotherapy resistance.
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Affiliation(s)
- Qiang Li
- School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, China; Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yuhao Zhang
- Department of Neurosurgery, Zhejiang Provincial People's Hospital, Affiliated to Hangzhou Medical College, Hangzhou, Zhejiang 310000, China
| | - Peikan Jin
- School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, China
| | - Yepeng Chen
- School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, China
| | - Chuchu Zhang
- School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, China
| | - Xiuchao Geng
- School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, China.
| | - Kein Seong Mun
- Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Kean Chang Phang
- Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Qin C, Zhang J, Ma L. EMCMDA: predicting miRNA-disease associations via efficient matrix completion. Sci Rep 2024; 14:12761. [PMID: 38834687 DOI: 10.1038/s41598-024-63582-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/30/2024] [Indexed: 06/06/2024] Open
Abstract
Abundant researches have consistently illustrated the crucial role of microRNAs (miRNAs) in a wide array of essential biological processes. Furthermore, miRNAs have been validated as promising therapeutic targets for addressing complex diseases. Given the costly and time-consuming nature of traditional biological experimental validation methods, it is imperative to develop computational methods. In the work, we developed a novel approach named efficient matrix completion (EMCMDA) for predicting miRNA-disease associations. First, we calculated the similarities across multiple sources for miRNA/disease pairs and combined this information to create a holistic miRNA/disease similarity measure. Second, we utilized this biological information to create a heterogeneous network and established a target matrix derived from this network. Lastly, we framed the miRNA-disease association prediction issue as a low-rank matrix-complete issue that was addressed via minimizing matrix truncated schatten p-norm. Notably, we improved the conventional singular value contraction algorithm through using a weighted singular value contraction technique. This technique dynamically adjusts the degree of contraction based on the significance of each singular value, ensuring that the physical meaning of these singular values is fully considered. We evaluated the performance of EMCMDA by applying two distinct cross-validation experiments on two diverse databases, and the outcomes were statistically significant. In addition, we executed comprehensive case studies on two prevalent human diseases, namely lung cancer and breast cancer. Following prediction and multiple validations, it was evident that EMCMDA proficiently forecasts previously undisclosed disease-related miRNAs. These results underscore the robustness and efficacy of EMCMDA in miRNA-disease association prediction.
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Affiliation(s)
- Chao Qin
- School of Information Science and Engineering, Qilu Normal University, Jinan, 250200, China.
| | - Jiancheng Zhang
- School of Information Science and Engineering, Qilu Normal University, Jinan, 250200, China
| | - Lingyu Ma
- School of Control Science and Engineering, Harbin Institute of Technology, Weihai, 250200, China
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4
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Li Y, Wang N, Huang Y, He S, Bao M, Wen C, Wu L. CircMYBL1 suppressed acquired resistance to osimertinib in non-small-cell lung cancer. Cancer Genet 2024; 284-285:34-42. [PMID: 38626533 DOI: 10.1016/j.cancergen.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 04/05/2024] [Accepted: 04/06/2024] [Indexed: 04/18/2024]
Abstract
Circular RNAs (circRNAs) play an important role in the development of acquired resistance to many anticancer drugs. We developed the Non-Small-Cell Lung Cancer (NSCLC) cell lines with acquired resistance to osimertinib, a third-generation of epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs), and evaluated the different expression profiles of circRNAs in osimertinib-sensitive and -resistant NSCLC cell lines using RNA sequencing (RNA-Seq). The expression of selected differentially expressed circRNAs was verified using quantitative real-time PCR (qRT-PCR) in paired osimertinib-sensitive and -resistant NSCLC cell lines, and in plasma samples of osimertinib-sensitive and -resistant NSCLC patients. We found that circMYBL1(has_circ_0136924) was downregulated after acquired resistance to osimertinib, inhibiting circMYBL1 expression facilitated the proliferation, migration, and invasion in osimertinib-sensitive NSCLC cells. CircMYBL1 may be a novel molecular biomarker and therapeutic target for osimertinib-resistant NSCLC.
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Affiliation(s)
- Yaji Li
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Nan Wang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yutang Huang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Shuai He
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing 400016, China
| | - Meihua Bao
- Hunan key laboratory of the research and development of novel pharmaceutical preparations, Changsha Medical University, Changsha 410219, China; Academician Workstation, Changsha Medical University, Changsha 410219, China
| | - Chunjie Wen
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China.
| | - Lanxiang Wu
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China.
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Feng Y, Zhang T, Liu H. circPDK1 competitively binds miR-4731-5p to mediate GIGYF1 expression and increase paclitaxel sensitivity in non-small cell lung cancer. Discov Oncol 2024; 15:157. [PMID: 38733530 PMCID: PMC11088590 DOI: 10.1007/s12672-024-01003-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
OBJECTIVE To investigate the action of circPDK1 in paclitaxel (PTX) resistance in non-small cell lung cancer (NSCLC). METHODS circPDK1, miR-4731-5p, and GIGYF1 levels were determined by RT-qPCR and Western blot. Cell proliferation was detected by CCK-8 and colony formation assay, apoptosis by flow cytometry, invasion by Transwell assay. The targeting relationship between miR-4731-5p and circPDK1 or GIGYF1 was confirmed by dual luciferase reporter gene and RIP assay. A xenograft tumor model was established to determine the role of circPDK1 in PTX resistance. RESULTS circPDK1 was overexpressed in PTX-resistant NSCLC, and depleting circPDK1 hampered proliferation and invasion of PTX-resistant cells, activated apoptosis, and improved PTX sensitivity. circPDK1 bound to miR-4731-5p, and increasing miR-4731-5p expression salvaged the effect of circPDK1 depletion on PTX resistance. miR-4731-5p directly targeted GIGYF1, and upregulating GIGYF1 offset the promoting effect of circPDK1 knockdown on PTX sensitivity. NSCLC tumor growth was inhibited and PTX sensitivity improved when circPDK1 was suppressed. CONCLUSION Depleting circPDK1 promotes PTX sensitivity of NSCLC cells via miR-4731-5p/GIGYF1 axis, thereby inhibiting NSCLC pregnancy.
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Affiliation(s)
- YunYin Feng
- Department of Respiratory, Kaihua County Traditional Chinese Medicine Hospital, No.10 Zhongshan Road, Qinyang Office, Quzhou City, 324000, Zhejiang Province, China.
| | - TaoLong Zhang
- Department of Gastroenterology, Kaihua County Traditional Chinese Medicine Hospital, Quzhou City, 324300, Zhejiang Province, China
| | - Hong Liu
- Department of Respiratory, Kaihua County Traditional Chinese Medicine Hospital, No.10 Zhongshan Road, Qinyang Office, Quzhou City, 324000, Zhejiang Province, China
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6
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Xia S, Wang C. Hsa_circ_0003489 Drives PTX Resistance of Human NSCLC Cells Through Modulating miR-98-5p/IGF2. Pharmgenomics Pers Med 2023; 16:805-815. [PMID: 37692338 PMCID: PMC10488782 DOI: 10.2147/pgpm.s416360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
Background Circular RNAs (circRNAs) demonstrated critical roles within developing tumors and treatment resistance in an increasing body of research. The aim was to look into the functions and processes of hsa_circ_0003489 in the non-small cell lung cancer (NSCLC) paclitaxel (PTX) resistance. Methods NSCLC cell-based cultures including A549 and H460 were employed for such an investigation. hsa_circ_0003489, miR-98-5p, and insulin-like growth factor 2 (IGF2) expression-profiles were evaluated with a quantitative real-time polymerase chain reaction (RT-qPCR). The PTX resistance was determined using MTT assay, and the ELISA test measured IGF2 expression. Facilitating corroboration for miR-98-5p relation and hsa_circ_0003489 or IGF2, a dual-luciferase reporter method was applied. Results The hsa_circ_0003489 level was raised in cells and tissues from PTX-resistant (PR) NSCLC. In PR NSCLC cells, hsa_circ_0003489 knockdown reduced PTX resistance. For the purpose of the mechanism study, hsa_circ_0003489 knockdown substantially reduced IGF2 expression via miR-98-5p sponging, improving PTX sensitivity in PR NSCLC. Conclusion Through miR-98-5p/IGF2 axis control, hsa_circ_0003489 knockdown helped NSCLC overcome PTX resistance, suggesting a potential circRNA-targeted therapy for the disease.
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Affiliation(s)
- Shaofeng Xia
- Department of Thoracic Surgery, The First People’s Hospital of Jiujiang City, Jiujiang, Jiangxi, People’s Republic of China
| | - Chenliang Wang
- Department of Pathology, The First People’s Hospital of Jiujiang City, Jiujiang, Jiangxi, People’s Republic of China
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Yi Q, Feng J, Liao Y, Sun W. Circular RNAs in chemotherapy resistance of lung cancer and their potential therapeutic application. IUBMB Life 2023; 75:225-237. [PMID: 35594011 DOI: 10.1002/iub.2624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/25/2022] [Indexed: 11/10/2022]
Abstract
Lung cancer is one of the high malignancy-related incidence and mortality worldwide, accounting for about 13% of total cancer diagnoses. Currently, the use of anti-cancer agents is still the main therapeutic method for lung cancer. However, cancer cells will gradually show resistance to these drugs with the progress of treatment. And the molecular mechanisms underlying chemotherapy agents resistance remain unclear. circRNAs are newly identified noncoding RNAs molecules with covalently closed circular structures. Previous studies have shown that circRNAs are associated with tumorigenesis and progression of various cancers, including lung cancer. Recently, growing reports have suggested that circRNAs could contribute to drug resistance of lung cancer cell through different mechanisms. Therefore, in this review, we summarized the functions and underlying mechanisms of circRNAs in regulating chemoresistance of lung cancer and discussed their potential applications for diagnosis, prognosis, and treatment of lung cancer.
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Affiliation(s)
- Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, Sichuan, China
| | - Jianguo Feng
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yi Liao
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Weichao Sun
- The Central Laboratory, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen, Guangdong, China.,Department of Orthopedics, Shenzhen Second People's Hospital (First Affiliated Hospital of Shenzhen University), Shenzhen, Guangdong, China
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8
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Lei J, Zhu J, Hui B, Jia C, Yan X, Jiang T, Wang X. Circ-HSP90A expedites cell growth, stemness, and immune evasion in non-small cell lung cancer by regulating STAT3 signaling and PD-1/PD-L1 checkpoint. Cancer Immunol Immunother 2023; 72:101-124. [PMID: 35750765 DOI: 10.1007/s00262-022-03235-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 05/31/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) are important participators in tumor progression for their stable structure and high tissue-specific expression. The purpose of this research was to clarify the potential and mechanism of a novel circRNA-circ-HSP90A in non-small cell lung cancer (NSCLC). METHODS Biological potentials of circ-HSP90A in NSCLC were measured by functional assays. Molecular interaction was assessed by bioinformatics analysis and mechanical assays. RESULTS Results depicted that circ-HSP90A was cyclization from its host gene heat shock protein 90 alpha (HSP90A) and was up-regulated in NSCLC cells. Circ-HSP90A depletion retarded proliferation, migration, invasion, and immune evasion. Mechanistically, circ-HSP90A recruited ubiquitin specific peptidase 30 (USP30) to stabilize HSP90A and then stimulated the signal transducer and activator of transcription 3 (STAT3) signaling. Meanwhile, circ-HSP90A sponged miR-424-5p to programmed cell death ligand 1 (PD-L1). CONCLUSIONS Our study firstly showed that circ-HSP90A promoted cell growth, stemness, and immune evasion in NSCLC through regulating STAT3 signaling and programmed cell death 1 (PD-1)/PD-L1 checkpoint, mirroring that targeting circ-HSP90A might become a novel target of immunotherapy in NSCLC.
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Affiliation(s)
- Jie Lei
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Jianfei Zhu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Bengang Hui
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Chenghui Jia
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Xiaolong Yan
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Tao Jiang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China.
| | - Xiaoping Wang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China.
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Tan Q, Ma J, Zhang H, Wu X, Li Q, Zuo X, Jiang Y, Liu H, Yan L. miR-125b-5p upregulation by TRIM28 induces cisplatin resistance in non-small cell lung cancer through CREB1 inhibition. BMC Pulm Med 2022; 22:469. [PMID: 36476351 PMCID: PMC9730690 DOI: 10.1186/s12890-022-02272-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE miR-125b-5p plays an important role in the development of cancer and drug resistance. However, in cisplatin resistance of non-small cell lung cancer (NSCLC), the function and potential mechanism of miR-125b-5p is still unclear. The aim of this study was to investigate the role and molecular mechanism of miR-125b-5p in cisplatin resistance of NSCLC. METHODS A GEO dataset (GSE168707) was analyzed to find high miR-125b-5p levels were associated with DDP resistance. miR-125b-5p expression levels were detected in A549 and A549/DDP cells via real-time quantitative RT-PCR (qRT-PCR). Luciferase reporter assays, western blots and mouse model xenografted were performed to identify CREB1 as a direct target gene of miR-125b-5p. Cell proliferation and apoptosis were also performed to identify whether miR-125b-5p upregulation by TRIM28 induces DDP resistance in NSCLC through CREB1 inhibition. RESULTS In A549/DDP cells, miR-125b-5p expression was upregulated compared to A549 cells. Then miR-125b-5p was found to increase DDP resistance in NSCLC in vivo and in vitro by increasing cell proliferation and suppressing cell apoptosis. Bioinformatic analyses were used to search for gene which miR-125b-5p can target. We identified miR-125b-5p can regulate CREB1 via luciferase reporter assays, qRT-PCR and western blots. Cell proliferation and apoptosis were also performed to confirm miR-125b-5p could impact on CREB1 and induce the DDP resistance in NSCLC. Additionally, we used bioinformatic analyses to find tripartite motif-containing 28 (TRIM28) as a transcriptional enhance factor of miR-125b-5p. The expression of TRIM28 was upregulated in A549/DDP cells compared with that in A549 cells by qRT-PCR. Finally, we found TRIM28 could mediate DDP resistance through miR-125b-5p/CREB1 axis via cell proliferation, western blot and apoptosis assay. CONCLUSIONS Overall, our findings demonstrated novel functions and mechanisms underlying DDP resistance in NSCLC through the TRIM28/miR-125b-5p/CREB1 axis. These may serve as novel therapeutic targets to improve the treatment efficacy using DDP for NSCLC in the future.
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Affiliation(s)
- Qiuyu Tan
- grid.452929.10000 0004 8513 0241The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, 241002 Anhui China ,grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
| | - Jinzhu Ma
- grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
| | - Hao Zhang
- grid.411525.60000 0004 0369 1599Department of Orthopedics, Changhai Hospital, Navy Medical University, Shanghai, 200433 China
| | - Xu Wu
- grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
| | - Qiang Li
- grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
| | - Xiaoxuan Zuo
- grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
| | - Yuxin Jiang
- grid.411870.b0000 0001 0063 8301Department of Pathogen Biology and Immunology, Jiaxing University College of Medicine, Jiaxing, 314000 Zhejiang China
| | - Haijun Liu
- grid.452929.10000 0004 8513 0241The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, 241002 Anhui China
| | - Liang Yan
- grid.443626.10000 0004 1798 4069Provincial Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, 241002 Anhui China
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10
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Hussen BM, Abdullah SR, Hama Faraj GS, Rasul MF, Salihi A, Ghafouri-Fard S, Taheri M, Mokhtari M. Exosomal circular RNA: a signature for lung cancer progression. Cancer Cell Int 2022; 22:378. [PMID: 36457039 PMCID: PMC9714134 DOI: 10.1186/s12935-022-02793-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022] Open
Abstract
Membrane vesicles having a diameter of 30-150 nm are known as exosomes. Several cancer types secrete exosomes, which may contain proteins, circular RNAs (circRNAs), microRNAs, or DNA. CircRNAs are endogenous RNAs that do not code for proteins and can create continuous and covalently closed loops. In cancer pathogenesis, especially metastasis, exosomal circRNAs (exo-circRNAs) have a crucial role mainly due to the frequently aberrant expression levels within tumors. However, neither the activities nor the regulatory mechanisms of exo-circRNAs in advancing lung cancer (LC) are obvious. A better understanding of the regulation and network connections of exo-circRNAs will lead to better treatment for LCs. The main objective of the current review is to highlight the functions and mechanisms of exo-circRNAs in LC and assess the relationships between exo-circRNA dysregulation and LC progression. In addition, underline the possible therapeutic targets based on exo-circRNA modulating.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaymaniyah, Iraq
| | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
- Department of Biomedical Sciences, Cihan University-Erbil, Kurdistan Region, Erbil, 44001, Iraq
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
| | - Majid Mokhtari
- Tracheal Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Sufianov A, Begliarzade S, Beilerli A, Liang Y, Ilyasova T, Beylerli O. Circular RNAs as biomarkers for lung cancer. Noncoding RNA Res 2022; 8:83-88. [DOI: 10.1016/j.ncrna.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
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12
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Ren W, Yuan Y, Peng J, Mutti L, Jiang X. The function and clinical implication of circular RNAs in lung cancer. Front Oncol 2022; 12:862602. [PMID: 36338714 PMCID: PMC9629004 DOI: 10.3389/fonc.2022.862602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 08/26/2022] [Indexed: 12/02/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Despite the recent advent of promising new targeted therapies, lung cancer diagnostic strategies still have difficulty in identifying the disease at an early stage. Therefore, the characterizations of more sensible and specific cancer biomarkers have become an important goal for clinicians. Circular RNAs are covalently close, endogenous RNAs without 5' end caps or 3'poly (A) tails and have been characterized by high stability, abundance, and conservation as well as display cell/tissue/developmental stage-specific expressions. Numerous studies have confirmed that circRNAs act as microRNA (miRNA) sponges, RNA-binding protein, and transcriptional regulators; some circRNAs even act as translation templates that participate in multiple pathophysiological processes. Growing evidence have confirmed that circRNAs are involved in the pathogenesis of lung cancers through the regulation of proliferation and invasion, cell cycle, autophagy, apoptosis, stemness, tumor microenvironment, and chemotherapy resistance. Moreover, circRNAs have emerged as potential biomarkers for lung cancer diagnosis and prognosis and targets for developing new treatments. In this review, we will summarize recent progresses in identifying the biogenesis, biological functions, potential mechanisms, and clinical applications of these molecules for lung cancer diagnosis, prognosis, and targeted therapy.
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Affiliation(s)
- Wenjun Ren
- Department of Cardiovascular Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
- Department of Thoracic Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yixiao Yuan
- Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Peng
- Department of Thoracic Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Luciano Mutti
- The Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Xiulin Jiang
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
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13
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Yan T, Tian X, Liu F, Liu Q, Sheng Q, Wu J, Jiang S. The emerging role of circular RNAs in drug resistance of non-small cell lung cancer. Front Oncol 2022; 12:1003230. [PMID: 36303840 PMCID: PMC9592927 DOI: 10.3389/fonc.2022.1003230] [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: 07/26/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Due to the characteristics of aggressiveness and high risk of postoperative recurrence, non-small cell lung cancer (NSCLC) is a serious hazard to human health, accounting for 85% of all lung cancer cases. Drug therapies, including chemotherapy, targeted therapy and immunotherapy, are effective treatments for NSCLC in clinics. However, most patients ultimately develop drug resistance, which is also the leading cause of treatment failure in cancer. To date, the mechanisms of drug resistance have yet to be fully elucidated, thus original strategies are developed to overcome this issue. Emerging studies have illustrated that circular RNAs (circRNAs) participate in the generation of therapeutic resistance in NSCLC. CircRNAs mediate the modulations of immune cells, cytokines, autophagy, ferroptosis and metabolism in the tumor microenvironment (TME), which play essential roles in the generation of drug resistance of NSCLC. More importantly, circRNAs function as miRNAs sponges to affect specific signaling pathways, directly leading to the generation of drug resistance. Consequently, this review highlights the mechanisms underlying the relationship between circRNAs and drug resistance in NSCLC. Additionally, several therapeutic drugs associated with circRNAs are summarized, aiming to provide references for circRNAs serving as potential therapeutic targets in overcoming drug resistance in NSCLC.
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Affiliation(s)
- Tinghao Yan
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinchen Tian
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fen Liu
- Clinical Medical Laboratory Center, Jining First People’s Hospital, Jining Medical University, Jining, China
| | - Qingbin Liu
- Clinical Medical Laboratory Center, Jining First People’s Hospital, Jining Medical University, Jining, China
| | - Qing Sheng
- School of Architecture and Fine Art, Dalian University of Technology, Dalian, China
| | - Jianlin Wu
- School of Basic Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
- *Correspondence: Jianlin Wu, ; Shulong Jiang,
| | - Shulong Jiang
- Cheeloo College of Medicine, Shandong University, Jinan, China
- Clinical Medical Laboratory Center, Jining First People’s Hospital, Jining Medical University, Jining, China
- *Correspondence: Jianlin Wu, ; Shulong Jiang,
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14
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Knockdown of circLRWD1 weakens DDP resistance via reduction of SIRT5 expression through releasing miR-507 in non-small cell lung cancer. Anticancer Drugs 2022; 33:861-870. [PMID: 35946561 DOI: 10.1097/cad.0000000000001364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cisplatin (DDP) is an antineoplastic agent for non-small cell lung cancer (NSCLC). Hsa_circ_0081664 (circLRWD1) is overexpressed in DDP-resistant NSCLC cells, but its function is unclear. Thus, this study is to investigate whether circLRWD1 participates in DDP resistance in NSCLC. Changes in circLRWD1 expression were determined by real-time quantitative PCR. Effects of circLRWD1 inhibition on DDP-resistant NSCLC cell viability, proliferation, migration, invasion, and apoptosis were analyzed. The sponge function of circLRWD1 was predicted by bioinformatics analysis and verified by dual-luciferase reporter, RNA immunoprecipitation, and RNA pull-down assays. The function of circLRWD1 in DDP resistance was verified by xenograft models. CircLRWD1 was unconventionally overexpressed in DDP-resistant NSCLC samples and cells. Moreover, circLRWD1 silencing decreased IC50 value, restrained cell proliferation, reduced cell migration and invasion, and facilitated cell apoptosis in DDP-resistant NSCLC cells. Also, circLRWD1 knockdown elevated DDP-resistant NSCLC cell sensitivity to DDP in xenograft models. Furthermore, circLRWD1 regulated SIRT5 expression via adsorbing miR-507. SIRT5 overexpression weakened circLRWD1 silencing-mediated suppression of cell resistance to DDP in DDP-resistant NSCLC cells. In conclusion, circLRWD1 elevated SIRT5 expression via adsorbing miR-507, resulting in promoting NSCLC cell resistance to DDP, providing evidence to explain the significant role of circLRWD1 in DDP resistance in NSCLC.
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15
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Konoshenko M, Lansukhay Y, Krasilnikov S, Laktionov P. MicroRNAs as Predictors of Lung-Cancer Resistance and Sensitivity to Cisplatin. Int J Mol Sci 2022; 23:ijms23147594. [PMID: 35886942 PMCID: PMC9321818 DOI: 10.3390/ijms23147594] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Platinum-based chemotherapy, cisplatin (DDP) specifically, is the main strategy for treating lung cancer (LC). However, currently, there is a lack of predictive drug-resistance markers, and there is increased interest in the development of a reliable and sensitive panels of markers for DDP chemotherapy-effectiveness prediction. MicroRNAs represent a perspective pool of markers for chemotherapy effectiveness. Objectives: Data on miRNAs associated with LC DDP chemotherapy response are summarized and analyzed. Materials and methods: A comprehensive review of the data in the literature and an analysis of bioinformatics resources were performed. The gene targets of miRNAs, as well as their reciprocal relationships with miRNAs, were studied using several databases. Results and Discussion: The complex analysis of bioinformatics resources and the literature indicated that the expressions of 12 miRNAs have a high predictive potential for LC DDP chemotherapy responses. The obtained information was discussed from the point of view of the main mechanisms of LC chemoresistance. Conclusions: An overview of the published data and bioinformatics resources, with respect to the predictive microRNA markers of chemotherapy response, is presented in this review. The selected microRNAs and gene panel have a high potential for predicting LC DDP sensitiveness or DDP resistance as well as for the development of a DDP co-therapy.
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Affiliation(s)
- Maria Konoshenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin Siberian Federal Biomedical Research Center, Ministry of Public Health of the Russian Federation, 630055 Novosibirsk, Russia; (Y.L.); (S.K.)
- Correspondence:
| | - Yuriy Lansukhay
- Meshalkin Siberian Federal Biomedical Research Center, Ministry of Public Health of the Russian Federation, 630055 Novosibirsk, Russia; (Y.L.); (S.K.)
| | - Sergey Krasilnikov
- Meshalkin Siberian Federal Biomedical Research Center, Ministry of Public Health of the Russian Federation, 630055 Novosibirsk, Russia; (Y.L.); (S.K.)
| | - Pavel Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin Siberian Federal Biomedical Research Center, Ministry of Public Health of the Russian Federation, 630055 Novosibirsk, Russia; (Y.L.); (S.K.)
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16
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Sang C, Rao D, Wu C, Xia Y, Si M, Tang Z. Role of circular RNAs in the diagnosis, regulation of drug resistance and prognosis of lung cancer (Review). Oncol Lett 2022; 24:302. [PMID: 35949591 PMCID: PMC9353231 DOI: 10.3892/ol.2022.13422] [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: 12/07/2021] [Accepted: 05/25/2022] [Indexed: 11/07/2022] Open
Abstract
Lung cancer is one of the most common malignant tumors in China and is the highest cause of mortality among male and female patients, both in urban and rural areas. A subset of patients with lung cancer only display chest tightness without any other obvious symptoms. This is because most symptoms do not manifest during the early stages of disease development. Consequently, most patients with lung cancer are diagnosed when the disease is in the advanced stages, when they are already unfit for surgical treatment. Furthermore, the prognosis of patients with lung cancer is poor. The 5-year survival rate of patients with stage IA lung cancer is 85%, compared with 6% in those with stage IV. This requires the development of strategies for early diagnosis, treatment and prognosis to improve the management of lung cancer. Circular RNAs (circRNAs) belong to a class of closed circular non-coding RNAs formed by reverse splicing of a precursor mRNA. These RNAs are highly stable, ubiquitously expressed, conserved, and show high specificity. CircRNAs regulate biological processes, such as the proliferation, differentiation and invasion of lung cancer cells. Therefore, they can be used as biomarkers for the early diagnosis and prognosis prediction of lung cancer, as well as novel targets for therapy design. In the present review, the biological characteristics and functions of circRNAs, as well as their application in the diagnosis, control of drug resistance and effect on the prognosis of patients with lung cancer, will be discussed.
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Affiliation(s)
- Chengpeng Sang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Dingyu Rao
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Caixia Wu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Yao Xia
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Maoyan Si
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Zhixian Tang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
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17
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Jin M, Liu X, Wu Y, Lou Y, Li X, Huang G. Circular RNA EPB41 expression predicts unfavorable prognoses in NSCLC by regulating miR-486-3p/eIF5A axis-mediated stemness. Cancer Cell Int 2022; 22:219. [PMID: 35725615 PMCID: PMC9210757 DOI: 10.1186/s12935-022-02618-7] [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: 09/03/2021] [Accepted: 05/20/2022] [Indexed: 11/12/2022] Open
Abstract
Dysregulation of circular RNAs (circRNAs) has recently been found to play an important role in the progression and development of cancers such as non-small cell lung cancer (NSCLC). Yet the functions of many circRNAs in NSCLC remain unclear. In this study, the circRNA expression profiles in NSCLC tumor tissues and adjacent non-tumorous tissues were detected by high-throughput sequencing. Bioinformatics analyses, the dual-luciferase reporter system, fluorescence in situ hybridization (FISH) and miRNA/mRNA high-throughput sequencing were used to identify circ-EPB41 and its downstream target. The subcutaneous tumor/caudal vein transfer mouse model was used for tumor growth and invasion analysis. The results show that the circ-EPB41 was upregulated in NSCLC tissues and cell lines. Increased circ-EPB41 expression in NSCLC was significantly correlated with malignant characteristics, and positive to post-surgical overall survival of NSCLC patients. Reduced circ-EPB41 expression in NSCLC decreased cell proliferation and invasion in both in vitro and in vivo experiments. The miRNA/mRNA high-throughput sequencing suggested that downregulation of circ-EPB41 promoted microRNA (miR)-486-3p and suppressed eukaryotic translation initiation factor 5A (eIF5A) expression. Luciferase reporter experiments confirmed that miR-486-3p/eIF5A were downstream targets of circ-EPB41. In addition, we also found that downregulation of circ-EPB41 suppressed self-renewal and decreased expression of stemness markers SOX2, OCT-4, Nanog and CD133 by sponging miR-486-3p to enhance eIF5A expression. Taken togeter, these data revealed the important role of circ-EPB41 in regulating NSCLC cell invasion and proliferation by modifying miR-486-3p/eIF5A axis-mediated stemness. We believe our study provides a novel perspective regarding the role of circRNAs in NSCLC progression.
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Affiliation(s)
- Mingming Jin
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, People's Republic of China.,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Xiyu Liu
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, People's Republic of China.,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Yue Wu
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, People's Republic of China.,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Yuqing Lou
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, People's Republic of China.,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Xue Li
- Health School Attached to Shanghai University of Medicine and Health Sciences, Shanghai, 200237, People's Republic of China.
| | - Gang Huang
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, People's Republic of China. .,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China.
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18
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Wang S, Qian L, Cao T, Xu L, Jin Y, Hu H, Fu Q, Li Q, Wang Y, Wang J, Xia Y, Huang X. Advances in the Study of CircRNAs in Tumor Drug Resistance. Front Oncol 2022; 12:868363. [PMID: 35615158 PMCID: PMC9125088 DOI: 10.3389/fonc.2022.868363] [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: 02/02/2022] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
Recent studies have revealed that circRNAs can affect tumor DNA damage and repair, apoptosis, proliferation, and invasion and influence the transport of intratumor substances by acting as miRNA sponges and transcriptional regulators and binding to proteins in a variety of ways. However, research on the role of circRNAs in cancer radiotherapy and chemoresistance is still in its early stages. Chemotherapy is a common approach to oncology treatment, but the development of tumor resistance limits the overall clinical efficacy of chemotherapy for cancer patients. The current study suggests that circRNAs have a facilitative or inhibitory effect on the development of resistance to conventional chemotherapy in a variety of tumors, suggesting that circRNAs may serve as a new direction for the study of antitumor drug resistance. In this review, we will briefly discuss the biological features of circRNAs and summarize the recent progression of the involvement of circRNAs in the development and pathogenesis of cancer chemoresistance.
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Affiliation(s)
- Song Wang
- Department of Gastrointestinal Surgery, The First Affiliated Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Long Qian
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Tingting Cao
- Department of Gastrointestinal Surgery, The First Affiliated Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Li Xu
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Yan Jin
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Hao Hu
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Qingsheng Fu
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Qian Li
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Ye Wang
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Jiawei Wang
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Yabin Xia
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Xiaoxu Huang
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
- *Correspondence: Xiaoxu Huang,
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19
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Lin S, Zhou J, Xiao Y, Neary B, Teng Y, Qiu P. Integrative analysis of TCGA data identifies miRNAs as drug-specific survival biomarkers. Sci Rep 2022; 12:6785. [PMID: 35474090 PMCID: PMC9042876 DOI: 10.1038/s41598-022-10662-6] [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: 09/16/2021] [Accepted: 04/11/2022] [Indexed: 01/03/2023] Open
Abstract
Biomarkers predictive of drug-specific outcomes are important tools for personalized medicine. In this study, we present an integrative analysis to identify miRNAs that are predictive of drug-specific survival outcome in cancer. Using the clinical data from TCGA, we defined subsets of cancer patients who suffered from the same cancer and received the same drug treatment, which we call cancer-drug groups. We then used the miRNA expression data in TCGA to evaluate each miRNA’s ability to predict the survival outcome of patients in each cancer-drug group. As a result, the identified miRNAs are predictive of survival outcomes in a cancer-specific and drug-specific manner. Notably, most of the drug-specific miRNA survival markers and their target genes showed consistency in terms of correlations in their expression and their correlations with survival. Some of the identified miRNAs were supported by published literature in contexts of various cancers. We explored several additional breast cancer datasets that provided miRNA expression and survival data, and showed that our drug-specific miRNA survival markers for breast cancer were able to effectively stratify the prognosis of patients in those additional datasets. Together, this analysis revealed drug-specific miRNA markers for cancer survival, which can be promising tools toward personalized medicine.
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Affiliation(s)
- Shuting Lin
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, USA
| | - Jie Zhou
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, USA
| | - Yiqiong Xiao
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, USA
| | - Bridget Neary
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, USA
| | - Yong Teng
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
| | - Peng Qiu
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, USA.
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20
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Zhu C, Jiang X, Xiao H, Guan J. Circ_0030998 Restrains Cisplatin Resistance Through Mediating miR-1323/PDCD4 Axis in Non-small Cell Lung Cancer. Biochem Genet 2022; 60:2434-2454. [PMID: 35460386 DOI: 10.1007/s10528-022-10220-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/01/2022] [Indexed: 02/06/2023]
Abstract
We aimed to explore the underlying mechanism behind the cisplatin (DDP) resistance of non-small cell lung cancer (NSCLC) cells to identify novel potential therapeutic targets to overcome chemoresistance. Real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot assay were applied to analyze RNA and protein expression, respectively. Cell Counting Kit-8 (CCK8) assay was conducted to analyze the DDP resistance of NSCLC cells. Colony formation assay and 5-Ethynyl-2'-deoxyuridine (EdU) assay were performed to analyze cell proliferation ability. Flow cytometry was applied to assess cell apoptosis. Cell migration and invasion were assessed by transwell assays. Cell glycolytic metabolism was analyzed using commercial kits. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were performed to test the intermolecular target relations. Circular RNA_0030998 (circ_0030998) was down-regulated in DDP-resistant NSCLC tissues and cell lines. Circ_0030998 overexpression restrained the DDP resistance, proliferation, migration, invasion and glycolytic metabolism and triggered the apoptosis of NSCLC cells. Circ_0030998 overexpression contributed to the anti-tumor effect of DDP in the growth of xenograft tumor in vivo. MicroRNA-1323 (miR-1323) was a molecular target of circ_0030998 in NSCLC cells. Circ_0030998 overexpression-mediated effects on the DDP resistance and malignant properties of NSCLC cells were largely based on its negative regulation of miR-1323. MiR-1323 interacted with programmed cell death 4 (PDCD4). Circ_0030998 positively regulated PDCD4 expression partly through sponging miR-1323. MiR-1323 silencing restrained DDP resistance and progression of NSCLC partly through up-regulating PDCD4. Circ_0030998 suppressed DDP resistance and NSCLC progression depending on the regulation of miR-1323/PDCD4 axis.
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Affiliation(s)
- Changyu Zhu
- Department of Pharmacy, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of Chin, No.32, West section 2, 1st ring road, Chengdu, 610072, Sichuan, China.,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Xiaolei Jiang
- Department of Pharmacy, Gansu Provincial Hospital of TCM, Lanzhou, Gansu, China
| | - Hua Xiao
- Department of Pharmacy, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of Chin, No.32, West section 2, 1st ring road, Chengdu, 610072, Sichuan, China
| | - Jianmei Guan
- Department of Central Sterile Supply, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, Sichuan, China.
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21
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Ding X, Sun J, Zhang X. Circ_0076305 facilitates prostate cancer development via sponging miR-411-5p and regulating PGK1. Andrologia 2022; 54:e14406. [PMID: 35238066 DOI: 10.1111/and.14406] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 11/28/2022] Open
Abstract
Abnormal expression of circular RNA (circRNA) is tightly linked to cancer progression. In this study, we aimed to investigate the biological role of circ_0076305 in prostate cancer (PCa). RT-qPCR was utilized to examine circ_0076305, microRNA-411-5p (miR-411-5p) and phosphoglycerate kinase 1 (PGK1) expression in PCa tissues and cells. CCK-8 assay, EdU assay, wound-healing assay and flow cytometry were executed to investigate the regulatory function of circ_0076305 on the proliferation, migration and apoptosis of PCa cells. Western blot (WB) assay was applied for measuring the protein levels. The effect of circ_0076305 on cellular glycolysis was examined using commercial kits. RNA immunoprecipitation (RIP) and dual-luciferase reporter assays were conducted for confirming the association between miR-411-5p and circ_0076305 or PGK1. The role of circ_0076305 in vivo was detected via establishing mice xenograft model. Circ_0076305 was highly expressed in PCa. Circ_0076305 silencing could repress cell growth, migration and glycolysis while triggered apoptosis in PCa cells. MiR-411-5p was targeted by circ_0076305, and miR-411-5p suppression counteracted the influence of circ_0076305 silencing in PCa cells. Additionally, miR-411-5p directly targeted PGK1, and miR-411-5p upregulation restrained PCa cell malignant behaviours via reducing PGK1. Mechanically, circ_0076305 sponged miR-411-5p to affect PGK1 expression. Importantly, circ_0076305 interference inhibited tumour growth in vivo. Circ_0076305 served as a novel oncogene PCa progression through regulation of miR-411-5p/PGK1 axis.
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Affiliation(s)
- Xiqi Ding
- Urology Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jian Sun
- Urology Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Xiao Zhang
- Urology Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
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22
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Wang Y, Wu Y, Xie S. CircPTK2 inhibits cell cisplatin (CDDP) resistance by targeting miR-942/TRIM16 axis in non-small cell lung cancer (NSCLC). Bioengineered 2022; 13:3651-3664. [PMID: 35230201 PMCID: PMC8973636 DOI: 10.1080/21655979.2021.2024321] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In recent years, the problem of cancer resistance has become more and more prominent, seriously affecting treatment efficiency. Circular RNAs (circRNAs) play an important role in cell progression and cancer mechanisms. However, there is a lack of systematic studies on its function in non-small cell lung cancer (NSCLC) resistance. CircPTK2, microRNA-942 (miR-942), and Tripartite motif 16 (TRIM16) levels were detected by Real-time quantitative reverse transcriptase PCR (qRT-PCR). Extracellular acidification rate (ECAR), glucose consumption, and lactate production were assessed using the Seahorse XF96 Glycolysis Analyzer, glucose, and lactate assay kits, respectively. The protein expression was measured with the western bolt Transwell assay was used to determine migration and invasion of transfected cells. (4-5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and flow cytometry were applied to carry out cell proliferation and apoptosis, respectively. The relationship among circPTK2, miR-942, and TRIM16 were determined by using the dual-luciferase reporter assay and RIP assay. circPTK2 (hsa_circ_0008305) and TRIM16 were low expressed, while miR-942 was significantly highly expressed in NSCLC tissues and cell lines. Moreover, overexpression of circPTK2 remarkably inhibited cell growth, metastasis, and glycolysis in A549/CDDP and H1299/CDDP cells. Promotion of miR-942 or inhibition of TRIM16 could reverse the effects of high circPTK2 expression on cell growth, metastasis, and glycolysis in A549/CDDP and H1299/CDDP cells. CircPTK2 overexpression inhibited the growth of A549/CDDP cells in vivo. Furthermore, circPTK2 weakened CDDP resistance of NSCLC through modulating miR-942/TRIM16 axis, providing a novel sight for the treatment of NSCLC and improving the understanding of the CDDP resistance mechanism of NSCLC.
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Affiliation(s)
- Yongfu Wang
- Department of Cardiothoracic Surgery, The Second People's Hospital of Yibin, Yibin, Sichuna, China
| | - Yuanlin Wu
- Department of Cardiothoracic Surgery, The Second People's Hospital of Yibin, Yibin, Sichuna, China
| | - Shaoqiang Xie
- Department of Cardiothoracic Surgery, The Second People's Hospital of Yibin, Yibin, Sichuna, China
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Guo C, Wang H, Jiang H, Qiao L, Wang X. Circ_0011292 Enhances Paclitaxel Resistance in Non-Small Cell Lung Cancer by Regulating miR-379-5p/TRIM65 Axis. Cancer Biother Radiopharm 2022; 37:84-95. [PMID: 32833503 DOI: 10.1089/cbr.2019.3546] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Non-small cell lung cancer (NSCLC) is the most prevalent cancer in the world. Chemotherapy resistance is a major obstacle to NSCLC therapy. This study explored the role and molecular mechanism of circular RNA 0011292 (circ_0011292) in tumorigenesis and chemoresistance of NSCLC. Methods: The levels of circ_0011292, miR-379-5p, and tripartite motif-containing protein 65 (TRIM65) were measured by quantitative real-time polymerase chain reaction or Western blot assay. Cell proliferation was assessed by Cell Counting Kit-8 (CCK-8) assay. Cell apoptosis was monitored by flow cytometry. Cell migration and invasion were detected by transwell assay. The levels of apoptosis-related and epithelial-mesenchymal transition-related proteins were examined by Western blot. The half-inhibition concentration (IC50) of paclitaxel (PTX) was evaluated by CCK-8 assay. Xenograft model was established to analyze the effect of circ_0011292 on PTX resistance of NSCLC in vivo. The interaction among circ_0011292, miR-379-5p, and TRIM65 was verified by dual-luciferase reporter assay and RNA immunoprecipitation assay. Results: Circ_0011292 and TRIM65 were upregulated, while miR-379-5p was downregulated in NSCLC tissues and cells. Circ_0011292 knockdown hindered NSCLC progression and enhanced PTX sensitivity of NSCLC. Circ_0011292 silencing reduced PTX resistance in vivo. Besides, miR-379-5p potentiated PTX sensitivity by targeting TRIM65. Also, circ_0011292 increased PTX resistance by sponging miR-379-5p. Conclusion: Circ_0011292 facilitated tumorigenesis and PTX resistance in NSCLC by regulating the miR-379-5p/TRIM65 axis, suggesting that circ_0011292 was a promising therapeutic target for NSCLC chemotherapy.
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Affiliation(s)
- Chunhong Guo
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Hailiang Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Housen Jiang
- Department of Orthopedic Surgery, Weifang People's Hospital, Weifang, China
| | - Liang Qiao
- Department of Urology, Gaomi People's Hospital, Gaomi, China
| | - Xinli Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
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Lv C, Hu Y, Zhou X, Zhu Y, Wang J, Zhou F. CircRNA SOD2 motivates non-small cell lungs cancer advancement with EMT via acting as microRNA-2355-5p’s competing endogenous RNA to mediate calmodulin regulated spectrin associated proteins-2. Bioengineered 2022; 13:5756-5768. [PMID: 35188072 PMCID: PMC8974208 DOI: 10.1080/21655979.2021.2024331] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Circular RNAs (circRNAs) are closely linked with human cancer development such as non-small-cell lung cancer (NSCLC). However, the characteristics and specific functions of most circRNAs in NSCLC remained unknown. Previous studies have suggested that circRNA SOD2 (CircSOD2) expression was upregulated in a number of cancers. This study aimed to explore the functions of circSOD2 in NSCLC advancement with epithelial-mesenchymal transition (EMT). Expression profile analysis of circSOD2, miR-2355-5p, and calmodulin-regulated spectrin-associated protein 2 (CAMSAP2) was detected by real-time quantitative PCR (RT-qPCR). Transwell assay, cell migration assay, CCK8, ELISA, RIP assay, RNA pull-down assay, and Western blot analysis were performed to evaluate the functions of circSOD2, miR-2355-5p, and CAMSAP2. We found elevated expression of circSOD2 and CAMSAP2 while reduced expression of miR-2355-5p in NSCLC tumor tissues. Silencing or overexpression of CircSOD2 resulted in increased or decreased expression of miR-2355-5p, respectively. Mechanically, we showed that silencing of CircSOD2 and overexpression of miR-2355-5p resulted in the reduced rate of NSCLC cell proliferation. Inhibition of miR-2355-5p reversed the changes induced via silencing of CircSOD2. MiR-2355-5p binds to the CircSOD2 promoter and triggered its stimulation, which further activated circSOD2 expression. CircSOD2 suppression impaired lung cancer cell growth, cell migration, prohibited cell cycle progression, and in vivo tumor growth by targeting miR-2355-5p expression in NSCLC tissues. Meanwhile, increased expression of CAMSAP2 reversed the changes stimulated by the elevated level of miR-2355-5p in NSCLC progression. This innovative signaling axis CircSOD2/miR-2355-5p/CAMSAP2 illustrated the new horizon to investigate NSCLC tumorigenesis and provided new prognosis and treatment of NSCLC.
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Affiliation(s)
- Changsheng Lv
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, China
| | - Yiying Hu
- Department of Neuroelectrophysiology, The First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, China
| | - Xin Zhou
- Department of Histology and Embryology, Dalian Medical University, Dalian City, Liaoning Province, China
| | - Yuntao Zhu
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, China
| | - Jin Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, China
| | - Fachen Zhou
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, China
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Wei D, Zeng J, Rong F, Xu Y, Wei R, Zou C. Circ_0020123 enhances the cisplatin resistance in non-small cell lung cancer cells partly by sponging miR-140-3p to regulate homeobox B5 (HOXB5). Bioengineered 2022; 13:5126-5140. [PMID: 35170372 PMCID: PMC8974048 DOI: 10.1080/21655979.2022.2036910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Cisplatin (DDP) therapy is widely used for the treatment of non-small cell lung cancer (NSCLC), but the curative effect is limited by chemoresistance. This study was designed to explore circ_0020123 function in DDP resistance of NSCLCDDP. Expression detection for circ_0020123, microRNA-140-3p (miR-140-3p) and homeobox B5 (HOXB5) was performed by real-time polymerase chain reaction (qRT-PCR). Half inhibitory concentration (IC50) of DDP and cell proliferation was detected by Cell Counting Kit-8 (CCK-8) assay. Colony formation ability was assessed using colony formation assay. Cell migration and invasion were evaluated via transwell assay. Cell apoptosis was examined by flow cytometry. Protein analysis was conducted by Western blot. Dual-luciferase reporter assay was used to affirm target interaction. Circ_0020123 expression was upregulated in DDP-resistant NSCLC cells. DDP resistance was reduced by downregulation of circ_0020123 in NSCLC cells. Circ_0020123 was identified as a miR-140-3p sponge. The effect of si-circ_0020123 on DDP resistance was partly associated with miR-140-3p upregulation. HOXB5 was a downstream target for miR-140-3p. Overexpression of HOXB5 mitigated miR-140-3p-induced inhibition of DDP resistance in NSCLC cells. Circ_0020123 upregulated the level of HOXB5 partly via sponging miR-140-3p. Also, circ_0020123 promoted tumor growth in NSCLC/DDP xenografts by regulating miR-140-3p and HOXB5 levels at least in part. These results revealed that circ_0020123 promoted DDP resistance in NSCLC cells partly by targeting miR-140-3p/HOXB5 axis, indicating that circ_0020123 might be used as a molecular target in DDP treatment for NSCLC.
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Affiliation(s)
- Dong Wei
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
| | - Jing Zeng
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
| | - Feng Rong
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
| | - Yasheng Xu
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
| | - Rong Wei
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
| | - Can Zou
- Department of Respiratory Medicine, Xiantao First People's Hospital Affiliated to Yangtze University, Xiantao City, Hubei Province, China
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lncRNA FGD5-AS1 Regulates Bone Marrow Stem Cell Proliferation and Apoptosis by Affecting miR-296-5p/STAT3 Axis in Steroid-Induced Osteonecrosis of the Femoral Head. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:9364467. [PMID: 35190765 PMCID: PMC8858055 DOI: 10.1155/2022/9364467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/12/2022] [Accepted: 01/15/2022] [Indexed: 11/27/2022]
Abstract
Background Osteonecrosis of the femoral head (ONFH) is a common hip joint disease, which is more harmful and seriously affects the lives of patients. This study aims to clarify the regulatory mechanism of lncRNA FGD5-AS1 in ONFH. Methods The expression of the protein and mRNA was detected by RT-qPCR and Western blot assay. The regulatory mechanism of lncRNA FGD5-AS1 was detected by the dual-luciferase reporter assay, CCK-8 assay, and flow cytometry assay. Results Dex can inhibit cell proliferation and differentiation and induce apoptosis in hBMSCs in a dose-dependent manner. Overexpression of lncRNA FGD5-AS1 promoted cell proliferation and restrained apoptosis in Dex-treated hBMSCs. In addition, lncRNA FGD5-AS1 acts as a sponge for miR-296-5p. Also, miR-296-5p directly targets STAT3. More importantly, miR-296-5p and STAT3 can affect the function of lncRNA FGD5-AS1 in Dex-treated hBMSCs. Conclusion lncRNA FGD5-AS1 promotes cell proliferation and inhibits apoptosis in steroid-induced ONFH through acting as a sponge for miR-296-5p and upregulation of STAT3.
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Li Y, Yang X, Xiong X. Circ_0004015 silencing represses cisplatin chemoresistance and tumor progression by reducing KLF8 in a miR-198-dependent manner in non-small cell lung cancer. Genomics 2022; 114:110294. [DOI: 10.1016/j.ygeno.2022.110294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 01/05/2022] [Accepted: 02/01/2022] [Indexed: 11/24/2022]
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Liu Y, Zhai R, Hu S, Liu J. Circular RNA circ-RNF121 contributes to cisplatin (DDP) resistance of non-small-cell lung cancer cells by regulating the miR-646/SOX4 axis. Anticancer Drugs 2022; 33:e186-e197. [PMID: 34387608 DOI: 10.1097/cad.0000000000001184] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Chemo-resistance is considered a major obstacle in the clinical treatment of non-small-cell lung cancer (NSCLC). Circular RNA (circRNA) circ-RNF121 (hsa_circ_0023404) has been identified to be related to the cisplatin (DDP) resistance. However, the role and mechanism of circ-RNF121 in the DDP resistance in NSCLC are still unknown. Real-time quantitative PCR (RT-qPCR) was applied to detect the levels of circ-RNF121, microRNA-646 (miR-646) and SRY-related HMG box transcription factor 4 (SOX4). Cell viability, proliferation, apoptosis, migration, invasion and cell cycle progression were assessed by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT), colony formation, flow cytometry, wound-healing, transwell and flow cytometry assays, severally. The binding relationship between miR-646 and circ-RNF121 or SOX4 was predicted by the circular RNA interactome or Target Scan Human7.2 and then verified by a dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. SOX4 protein level was measured by western blot assay. The biological role of circ-RNF121 on NSCLC tumor growth and drug resistance was examined by the xenograft tumor model in vivo. Circ-RNF121 and SOX4 were increased, and miR-646 was declined in DDP-resistant NSCLC tissues and cells. Furthermore, the circ-RNF121 deficiency could enhance DDP sensitivity by inhibiting cell proliferation, migration, invasion, cell cycle progression and promoting apoptosis in DDP-resistant NSCLC cells in vitro. Mechanically, circ-RNF121 served as a sponge of miR-646 to increase SOX4 expression. Circ-RNF121 knockdown improved the drug sensitivity of NSCLC in vivo. Circ-RNF121 silencing could reduce the DDP resistance of NSCLC cells by regulating SOX4 expression via miR-646. These findings hinted at a promising therapeutic target for NSCLC treatment.
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Affiliation(s)
- Yongrui Liu
- Department of Oncology, Linyi Jinluo Hospital, Linyi
| | - Ruiren Zhai
- Department of Oncology, Hainan Yiling Medical Development Co., Ltd, Qionghai
| | - Siqin Hu
- Department of Oncology, The People's Hospital of Longhua, Shenzhen
| | - Jing Liu
- Department of Oncology, Sunshine Union Hospital, Weifang, China
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Tan D, Li G, Zhang P, Peng C, He B. LncRNA SNHG12 in extracellular vesicles derived from carcinoma-associated fibroblasts promotes cisplatin resistance in non-small cell lung cancer cells. Bioengineered 2022; 13:1838-1857. [PMID: 35014944 PMCID: PMC8805932 DOI: 10.1080/21655979.2021.2018099] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 12/25/2022] Open
Abstract
Non-small-cell lung cancer (NSCLC) is defined as the most universally diagnosed class of lung cancer. Cisplatin (DDP) is an effective drug for NSCLC, but tumors are prone to drug resistance. The current study set out to evaluate the regulatory effect of long non-coding RNA (lncRNA) small nucleolar RNA host gene 12 (SNHG12) in extracellular vesicles (EVs) derived from carcinoma-associated fibroblasts (CAFs) on DDP resistance in NSCLC cells. Firstly, NSCLC cells were treated with EVs, followed by detection of cell activity, IC50 values, cell proliferation and apoptosis, and Cy3-SNHG12. We observed that CAFs-EVs promoted IC50 values and cell proliferation and inhibited apoptosis. In addition, we learned that lncRNA SNHG12 carried by CAFs-EVs into NSCLC facilitated DDP resistance of NSCLC cells. Furthermore, ELAV like RNA binding protein 1 (HuR/ELAVL1) binding to lncRNA SNHG12 and X-linked inhibitor of apoptosis (XIAP) was verified and RNA stability of XIAP was also verified CAFs-EVs promoted RNA stability and transcription of XIAP, while silencing HuR could partially-reverse this promoting effect. Further joint experimentation showed that silencing XIAP partially inhibited DDP resistance in NSCLC cells. Additionally, the tumor growth and the positive rate of Ki67 and HuR were detected, which showed that CAFs-oe-EVs promoted the tumor and the positive rate of Ki67, as well as the levels of lncRNA SNHG12, HuR, and XIAP in vivo. Collectively, our findings indicated that lncRNA SNHG12 carried by CAFs-EVs into NSCLC cells promoted RNA stability and XIAP transcription by binding to HuR, thus augmenting DDP resistance in NSCLC cells.
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Affiliation(s)
- Deli Tan
- Department of Thoracic Surgery, Chongqing Ninth People’s Hospital, Chongqing, China
| | - Gang Li
- Department of Thoracic Surgery, Chongqing Ninth People’s Hospital, Chongqing, China
| | - Peng Zhang
- Department of Thoracic Surgery, Chongqing Ninth People’s Hospital, Chongqing, China
| | - Chao Peng
- Department of Thoracic Surgery, Chongqing Ninth People’s Hospital, Chongqing, China
| | - Bo He
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing400038, China
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Sheng J, Liu L, Dong T, Wu X. Circ_SETD3 regulates gefitinib sensitivity and tumor progression by miR-873-5p-dependent regulation of APPBP2 in non-small cell lung cancer. J Chemother 2021; 34:401-413. [PMID: 34861803 DOI: 10.1080/1120009x.2021.2009991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Previous data have shown the prominent clinical efficacy of gefitinib in non-small cell lung cancer (NSCLC) patients. However, its therapeutic efficacy is limited because of the development of gefitinib resistance. This research is designed to investigate the role of circRNA SET domain containing 3, actin histidine (circ_SETD3) in the sensitivity of NSCLC to gefitinib. The expression of circ_SETD3, microRNA-873-5p (miR-873-5p) and amyloid protein-binding protein 2 (APPBP2) was detected by qRT-PCR. Protein expression was determined by western blot analysis or immunohistochemistry assay. The half-maximal inhibitory concentration of gefitinib was determined by 3-(4,5-Dimethylthazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Cell proliferation was investigated by 5-Ethynyl-29-deoxyuridine (EdU), cell colony formation and MTT assays. Cell apoptosis was analyzed by Annexin V-fluorescein isothiocyanate and propidium iodide double staining assay. Transwell assay was employed to evaluate cell migration and invasion. Additionally, the binding relationship between miR-873-5p and circ_SETD3 or APPBP2 was predicted by starbase online database, and identified by a dual-luciferase reporter assay. Further, circ_SETD3 silencing-mediated effect on tumor sensitivity to gefitinib in vivo was confirmed by xenograft mouse model experiment. Circ_SETD3 and APPBP2 expression were upregulated, while miR-873-5p was downregulated in gefitinib-resistant NSCLC tissues and cells compared with gefitinib-sensitive NSCLC tissues or cells. Reduced expression of circ_SETD3 repressed gefitinib resistance, proliferation, migration and invasion, but induced apoptosis of gefitinib-resistant NSCLC cells. Additionally, circ_SETD3 modulated gefitinib sensitivity and tumor development by binding to miR-873-5p. APPBP2 upregulation attenuated miR-873-5p-mediated gefitinib sensitivity and NSCLC progression. Furthermore, circ_SETD3 absence improved tumor sensitivity to gefitinib in vivo. Circ_SETD3 knockdown improved gefitinib sensitivity and repressed NSCLC cell malignancy via miR-873-5p/APPBP2 axis, which provides a theoretical basis for using circ_SETD3-based therapeutic strategies to improve NSCLC sensitivity to gefitinib.
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Affiliation(s)
- Jun Sheng
- Department of Oncology, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, China
| | - Leyi Liu
- Department of Anesthesiology, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, China
| | - Ting Dong
- Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Xiang Wu
- Department of Oncology, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, China
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Liu W, Hu W, Hou K, Zhu S. Circular RNA Paired-Related Homeobox 1 Promotes Gastric Carcinoma Cell Progression via Regulating MicroRNA-665/YWHAZ Axis. Dig Dis Sci 2021; 66:3842-3853. [PMID: 33201331 DOI: 10.1007/s10620-020-06705-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gastric carcinoma (GC) is a ubiquitous malignant tumor worldwide. Circular RNA paired-related homeobox 1 (circ-PRRX1), one kind of non-coding RNAs, has been reported to act as a promoter in tumor growth. This study aims to explore the effects of circ-PRRX1 on proliferation, apoptosis, and metastasis in GC and the underlying regulatory mechanisms. METHODS The expression of circ-PRRX1, miR-665, and tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta (YWHAZ) mRNA was analyzed by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was used to analyze YWHAZ protein expression. 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-Htetrazolium bromide (MTT), flow cytometry, and transwell assay were carried out to assess the viability, apoptosis, migration, and invasion in GC cells. The interaction between miR-665 and circ-PRRX1 or YWHAZ was predicted by StarBase v2.0 and identified by dual-luciferase reporter system. Xenograft mouse model was employed to determine the effects of circ-PRRX1 knockdown on GC growth in vivo. RESULTS Compared with normal tissues and cells, circ-PRRX1 and YWHAZ levels were upregulated, and miR-665 was downregulated in GC tissues and cells. Functionally, circ-PRRX1 knockdown inhibited the viability, migration, and invasion and promoted apoptosis in GC cells, whereas anti-miR-665 abolished these effects. Mechanistically, circ-PRRX1 was confirmed as a sponge of miR-665 to regulate YWHAZ expression. Xenograft mouse model suggested that circ-PRRX1 knockdown reduced GC cells growth in vivo. CONCLUSION Circ-PRRX1 knockdown suppressed GC development by targeting miR-665 to inhibit YWHAZ expression, and the potential molecular mechanism may provide a theoretical basis for GC therapy.
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Affiliation(s)
- Wei Liu
- Department of General Surgery, Shidong Hospital, No. 999, Shiguang Road, Shanghai, 200438, China
| | - Weigao Hu
- Department of General Surgery, Shidong Hospital, No. 999, Shiguang Road, Shanghai, 200438, China
| | - Kezhu Hou
- Department of General Surgery, Shidong Hospital, No. 999, Shiguang Road, Shanghai, 200438, China
| | - Song Zhu
- Department of General Surgery, Shidong Hospital, No. 999, Shiguang Road, Shanghai, 200438, China.
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Circular RNA FOXO3 accelerates glycolysis and improves cisplatin sensitivity in lung cancer cells via the miR-543/Foxo3 axis. Oncol Lett 2021; 22:839. [PMID: 34712363 PMCID: PMC8548806 DOI: 10.3892/ol.2021.13100] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 09/02/2021] [Indexed: 12/12/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common cause of cancer-associated mortality worldwide. Our previous study revealed that circular RNA (circRNA)-FOXO3 is highly expressed in lung cancer and inhibits cell proliferation. However, to the best of our knowledge, at present, no study has focused on the specific mechanism of circRNA-FOXO3 in drug resistance. Therefore, the present study aimed to provide novel perspectives on the role of circRNA-FOXO3 in cisplatin (DDP) resistance in NSCLC. A Cell Counting Kit-8 assay was used to determine the viability of cells overexpressed with circRNA-FOXO3 and under DDP treatment. Glycolysis was analyzed by measuring glucose consumption and lactate production. The interaction of circRNA-FOXO3, microRNA 543 (miR-543) and Foxo3 was confirmed using a dual-luciferase reporter assay. It was revealed that circRNA-FOXO3 improved cell sensitivity to DDP and repressed glycolysis in DDP-sensitive and DDP-resistant NSCLC cells. Bioinformatics analysis, luciferase reporter assays, quantitative PCR and RNA pull-down assays were employed to verify the binding of circRNA-FOXO3 to miR-543. Functionally, inhibition of miR-543 could sensitize NSCLC cells to DDP, and overexpression of miR-543 at least partially abolished the circRNA-FOXO3-induced decrease in chemoresistance. Furthermore, it was revealed that Foxo3 was a direct target of miR-543. Notably, the inhibitory action of miR-543 silencing on DDP resistance and glycolysis was reversed by overexpression of Foxo3 in DDP-sensitive and DDP-resistant NSCLC cells. In conclusion, the present study demonstrated that circRNA-FOXO3 promoted DDP sensitivity in NSCLC cells by regulating the miR-543/Foxo3 axis-mediated glycolysis balance. The present findings may provide novel perspectives for the treatment of patients with NSCLC resistant to DDP.
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Chen S, Zhou L, Ran R, Huang J, Zheng Y, Xing M, Cai Y. Circ_0016760 accelerates non-small-cell lung cancer progression through miR-646/AKT3 signaling in vivo and in vitro. Thorac Cancer 2021; 12:3223-3235. [PMID: 34658165 PMCID: PMC8636202 DOI: 10.1111/1759-7714.14191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Currently, the prognosis of non-small-cell lung cancer (NSCLC) patients remains dismal due to recurrence and metastasis. The purpose of our study was to explore the role of circular RNA_0016760 (circ_0016760) in NSCLC progression and its associated mechanism. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was implemented to measure the expression of circ_0016760, microRNA-646 (miR-646) and AK strain thymoma serine/threonine kinase 3 (AKT3). The protein level of AKT3 was examined by Western blot assay. Cell Counting Kit 8 assay, transwell assays, and flow cytometry were conducted to analyze cell proliferation, metastasis, and apoptosis. Dual-luciferase reporter assay was used to confirm the interactions that were predicted by bioinformatics software (Circular RNA Interactome and TargetScan). A xenograft tumor model was built to investigate the role of circ_0016760 in vivo. RESULTS Circ_0016760 and AKT3 were highly expressed in NSCLC tissue specimens and cell lines. Circ_0016760 interference suppressed cell proliferation, migration, and invasion and promoted the apoptosis of NSCLC cells. Circ_0016760 interacted with miR-646 and negatively regulated its expression. MiR-646 silencing partly counteracted circ_0016760 knockdown-mediated influences in NSCLC cells. MiR-646 bound to the AKT3 3' untranslated region in NSCLC cells, and miR-646 overexpression-induced effects in NSCLC cells were partly overturned by the addition of AKT3 overexpression plasmid. Circ_0016760 silencing reduced the expression of AKT3 through enhancing miR-646 expression. Circ_0016760 knockdown suppressed NSCLC tumor growth in vivo. CONCLUSION Circ_0016760 played an oncogenic role to promote the proliferation, migration, and invasion and restrained the apoptosis of NSCLC cells via miR-646/AKT3 signaling.
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Affiliation(s)
- Shan Chen
- Department of Oncology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Long Zhou
- Department of Pulmonary and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Ruizhi Ran
- Department of Oncology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Jinqi Huang
- Department of Cardiothoracic Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Yong Zheng
- Department of Cardiothoracic Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Maohui Xing
- Department of Oncology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Yanli Cai
- Department of Cardiothoracic Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
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Zheng S, Wang C, Yan H, Du Y. Blocking hsa_circ_0074027 suppressed non-small cell lung cancer chemoresistance via the miR-379-5p/IGF1 axis. Bioengineered 2021; 12:8347-8357. [PMID: 34592879 PMCID: PMC8806969 DOI: 10.1080/21655979.2021.1987053] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Cancer cell chemoresistance is the primary reason behind cancer treatment failure. Previous reports suggest that circular RNA (circRNA) hsa_circ_0074027 (HC0074027) is a crucial modulator of non-small cell lung cancer (NSCLC) disease progression. Herein, we delineated the underlying mechanism of HC0074027-regulated chemoresistance in NSCLC. We employed quantitative real-time polymerase chain reaction (qRT-PCR) or Elisa in the detection of HC0074027, micoRNA-379-5p (miR-379-5p), and insuline-like growth factor I (IGF1) expressions. Cell survival was evaluated via the 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). Direct associations among HC0074027, miR-379-5p, and IGF1 were examined via dual-luciferase reporter (DLR) and RNA immunoprecipitation (RIP) assays. Lastly, HC0074027 was incorporated into nude mice to examine its biological activity in vivo. Based on our analysis, HC0074027 levels strongly correlated with NSCLC chemoresistance to docetaxel (DTX), cisplatin (DDP), and paclitaxel (PTX). Alternately, HC0074027 silencing enhanced chemosensitivity in vitro. In vivo, HC0074027 downregulation suppressed tumor expansion and increased cancer cell sensitivity to chemotherapy. We also revealed that HC0074027 physically interacts with miR-379-5p to exert its biological function in vitro. Moreover, IGF1 is a functionally crucial target of miR-379-5p in modulating NSCLC chemoresistance in vitro. Finally, we demonstrated that HC0074027 can indirectly modulate IGF1 levels via sequestering miR-379-5p. We demonstrated that HC0074027 promotes NSCLC chemoresistance via sequestering miR-379-5p activity, and modulating IGF1 expression. Our work highlights the significance of HC0074027 in NSCLC chemoresistance and suggests HC0074027 to be an excellent candidate for targeted NSCLC therapy.
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Affiliation(s)
- Shizhen Zheng
- Department of Respiratory Disease, The Second People's Hospital of Chengdu, Sichuan, Sichuan, China
| | - Chao Wang
- Department of Geriatrics International Medical Center, The Third People's Hospital of Chengdu, Chengdu, Sichuan, China
| | - Hao Yan
- Department of Infectious Disease, The Second People's Hospital of Chengdu, Chengdu, Sichuan, China
| | - Yuejun Du
- Department of Infectious Disease, The Second People's Hospital of Chengdu, Chengdu, Sichuan, China
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Xia D, Chen Z, Liu Q. Circ-PGC increases the expression of FOXR2 by targeting miR-532-3p to promote the development of non-small cell lung cancer. Cell Cycle 2021; 20:2195-2209. [PMID: 34494941 DOI: 10.1080/15384101.2021.1974788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This study was to explore the function of circular progastricsin (circ-PGC) in NSCLC. The histological morphology of tumor tissues was observed by hematoxylin and eosin (HE) staining. The expression of circ-PGC, miR-532-3p and forkhead box R2 (FOXR2) mRNA was measured by real-time quantitative polymerase chain reaction (RT-qPCR). The protein level of FOXR2 was checked by western blot. In functional analyses, cell viability, colony formation, cell apoptosis, cell migration and cell invasion were investigated using cell counting kit-8 (CCK-8) assay, colony formation assay, flow cytometry assay, wound healing assay and transwell assay. Besides, glycolysis metabolism was assessed by the levels of glucose consumption, lactate production and adenosine triphosphate (ATP) production. The predicted relationship between miR-532-3p and circ-PGC and FOXR2 was verified by dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. The results showed that circ-PGC and FOXR2 were upregulated in NSCLC tissues and cells. Circ-PGC knockdown or FOXR2 knockdown inhibited NSCLC cell viability, colony formation, cell migration, invasion and glycolysis metabolism, and FOXR2 overexpression rescued these inhibitory effects caused by circ-PGC knockdown. MiR-532-3p harbored the same binding site with circ-PGC and FOXR2, and circ-PGC positively regulated FOXR2 expression by targeting miR-532-3p. The expression of β-catenin and c-Myc was decreased in cells after circ-PGC knockdown but recovered with miR-532-3p inhibition or FOXR2 overexpression. Circ-PGC downregulation also inhibited tumor growth in vivo. In conclusion, circ-PGC positively regulated FOXR2 expression by competitively binding to miR-532-3p, thereby promoting the development of NSCLC, and the Wnt/β-catenin signaling pathway might be activated by the circ-PGC/miR-532-3p/FOXR2 network.
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Affiliation(s)
- Daokui Xia
- Department of Cardiothoracic Surgery, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Zhen Chen
- Department of Cardiothoracic Surgery, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Quan Liu
- Department of Cardiothoracic Surgery, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
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Mu Q, Lv Y, Luo C, Liu X, Huang C, Xiu Y, Tang L. Research Progress on the Functions and Mechanism of circRNA in Cisplatin Resistance in Tumors. Front Pharmacol 2021; 12:709324. [PMID: 34566636 PMCID: PMC8458655 DOI: 10.3389/fphar.2021.709324] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
Cisplatin is a common chemotherapeutic drug that has been used to treat of numerous tumors, including testicular, lung, bladder, ovarian, liver and head and neck cancers. Although clinical chemotherapy based on cisplatin has shown a remarkable therapeutic effect, the resistance to cisplatin becomes increasingly obvious as a patient uses it for a prolonged period. It not only affects the prognosis of these tumors, but also causes the recurrence of cancer and decreases the overall survival rate. The development of cisplatin resistance involves several mechanisms, including DNA damage repair, ATP-binding cassette (ABC) transporter, autophagy, cancer stem cells (CSCs), epithelial-mesenchymal transition (EMT), and other related signaling pathways. Interestingly, these mechanisms have been found to be influenced by circular RNAs (circRNAs) to regulate tumor proliferation, invasion, chemosensitivity, and other biological behaviors in the tumor microenvironment (TME). In recent years, circRNAs in cisplatin resistance in tumors, especially lung cancer and gastric cancer, have gradually drawn peoples' attention. This review summarizes recent studies on the functions and mechanisms of circRNAs in cisplatin resistance. We emphasize that circRNA can be used as a promising target gene to improve drug resistance and therapeutic efficacy.
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Affiliation(s)
- Qingchun Mu
- The People’s Hospital of Gaozhou, Gaozhou, China
| | - Yue Lv
- Department of Urology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Chunmei Luo
- The People’s Hospital of Gaozhou, Gaozhou, China
| | - Xiaojing Liu
- The People’s Hospital of Gaozhou, Gaozhou, China
| | | | - Youcheng Xiu
- Department of Urology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
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Cao X, Ma Q, Wang B, Qian Q, Xi Y. Circ-E2F3 promotes cervical cancer progression by inhibiting microRNA-296-5p and increasing STAT3 nuclear translocation. Ann N Y Acad Sci 2021; 1507:84-98. [PMID: 34468993 DOI: 10.1111/nyas.14653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 05/18/2021] [Accepted: 06/02/2021] [Indexed: 01/03/2023]
Abstract
Circular RNA E2F transcription factor 3 (circ-E2F3) has been demonstrated to be differentially expressed in some diseases and cancers. However, the role of circ-E2F3 in cervical cancer (CC) progression remains unclear. Therefore, we aimed to elucidate the mechanism of circ-E2F3 regulation of CC progression. Circ-E2F3 expression was determined in CC samples, and its correlation with the clinicopathological characteristics of CC patients and cell biological processes was examined. The interaction among circ-E2F3, microRNA-296-5p (miR-296-5p), and signal transducer and activator of transcription 3 (STAT3) was analyzed by dual luciferase reporter gene and fluorescence in situ hybridization assays. Circ-E2F3-depleted CaSki cells were implanted into nude mice to verify the function of circ-E2F3 in vivo. Circ-E2F3 was upregulated in both CC tissues and cell lines, and this correlated with the clinicopathological features and poor prognosis of CC patients. Moreover, circ-E2F3 promoted the proliferation, invasion, and migration of CC cells and tumor growth in vivo. It was also observed that circ-E2F3 promoted the nuclear translocation of STAT3 through inhibition of miR-296-5p, thus affecting the expression of cyclin D1. Taken together, the key findings of our study demonstrate that circ-E2F3 induces inhibition of miR-296-5p, which triggers activation and nuclear translocation of STAT3 that then upregulates cyclin D1 expression.
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Affiliation(s)
- Xiangke Cao
- School of Life Sciences, North China University of Science and Technology, Tangshan, China
| | - Qinghua Ma
- Department of Preventive Health, The Third People's Hospital of Xiangcheng District in Suzhou, Suzhou, China
| | - Bin Wang
- Department of Pediatrics, North China University of Science and Technology Affiliated Hospital, Tangshan, China
| | - Qingqiang Qian
- Department of Neurology, Tangshan Gongren Hospital, Tangshan, China
| | - Yinan Xi
- Department of Obstetrics and Gynecology, Tangshan People's Hospital, Tangshan, China
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Zhu K, Zhu J, Geng J, Zhang Y, Qin Y, Wang F, Weng Y. circSNX6 (hsa_circ_0031608) enhances drug resistance of non-small cell lung cancer (NSCLC) via miR-137. Biochem Biophys Res Commun 2021; 567:79-85. [PMID: 34144504 DOI: 10.1016/j.bbrc.2021.06.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 01/18/2023]
Abstract
circRNAs have been suggested to modulate NSCLC tumorigenesis and drug resistance. Whether circSNX6 affects NSCLC remains unclear. In this study, we aim to investigate the role of circSNX6 in drug resistance of NSCLC exposed to cisplatin. RT-qPCR method was used to investigate expression levels of circSNX6, miR-137 and CXCL12. MTT, cell colony formation and TUNEL assays were utilized to assess cell viability, proliferation, apoptosis, respectively. Xenograft assay was conducted to examinein vivotumor growth. circSNX6 overexpression caused enhanced cell viability and proliferation of H1299 and Calu-1, while it inhibited apoptosis under cisplatin treatment. miR-137 inhibitor greatly rescued cell viability, proliferation and apoptosis of circSNX6 knockdown H1299 cells. miR-137 mimic increased ROS generation, as well as reduced GSH and SOD levels, whereas miR-137 inhibitor exerted opposing effect. circSNX6 knockdown also enhanced ROS generation, as well as decreased GSH and SOD levels. CXCL12 partially restored miR-137 mimic-modulated cell viability, proliferation and apoptosis. Herein, our group proposes circSNX6 as key regulator for drug resistance of NSCLC. The findings provide solid groundings for understanding of NSCLC pathogenesis and development of therapeutics.
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Affiliation(s)
- Koujun Zhu
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Jun Zhu
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Jichun Geng
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yongjian Zhang
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yan Qin
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Fudong Wang
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yuan Weng
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, China.
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Harper KL, Mottram TJ, Whitehouse A. Insights into the Evolving Roles of Circular RNAs in Cancer. Cancers (Basel) 2021; 13:4180. [PMID: 34439334 PMCID: PMC8391132 DOI: 10.3390/cancers13164180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/25/2022] Open
Abstract
The majority of RNAs transcribed from the human genome have no coding capacity and are termed non-coding RNAs (ncRNAs). It is now widely accepted that ncRNAs play key roles in cell regulation and disease. Circular RNAs (circRNAs) are a form of ncRNA, characterised by a closed loop structure with roles as competing endogenous RNAs (ceRNAs), protein interactors and transcriptional regulators. Functioning as key cellular regulators, dysregulated circRNAs have a significant impact on disease progression, particularly in cancer. Evidence is emerging of specific circRNAs having oncogenic or tumour suppressive properties. The multifaceted nature of circRNA function may additionally have merit as a novel therapeutic target, either in treatment or as a novel biomarker, due to their cell-and disease-state specific expression and long-term stability. This review aims to summarise current findings on how circRNAs are dysregulated in cancer, the effects this has on disease progression, and how circRNAs may be targeted or utilised as future potential therapeutic options.
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Affiliation(s)
| | | | - Adrian Whitehouse
- Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK; (K.L.H.); (T.J.M.)
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Wang X, Wang H, Jiang H, Qiao L, Guo C. Circular RNAcirc_0076305 Promotes Cisplatin (DDP) Resistance of Non-Small Cell Lung Cancer Cells by Regulating ABCC1 Through miR-186-5p. Cancer Biother Radiopharm 2021. [PMID: 34339285 DOI: 10.1089/cbr.2020.4153] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: Lung cancer is a social problem of increasing concern, and non-small cell lung cancer (NSCLC) accounts for 80%-85% incidence of lung cancer. Cisplatin (DDP) is reported as a first-line chemotherapy drug for NSCLC, but the resistance has became a main obstacle for NSCLC treatment. The high level of circular RNA circ_0076305 was related to the DDP resistance in NSCLC. However, the mechanism of circ_0076305 remains unclear in DDP resistance of NSCLC. Materials and Methods: Exosomes were detected by a transmission electron microscope and nanoparticle tracking analysis. The protein levels of CD63, CD81, P-glycoprotein (P-gp), Lung resistance-related protein, and ATP-binding cassette subfamily C member 1 (ABCC1) were examined by Western blot assay. Circ_0076305, microRNA-186-5p (miR-186-5p), and ABCC1 levels were tested by real-time quantitative polymerase chain reaction. DDP resistance was examined by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide assay. The binding relationship between miR-186-5p and circ_0076305 or ABCC1 was predicted by circRNA interactome or starBase, and then verified by dual-luciferase reporter and RNA immunoprecipitation assays. The effect of circ_0076305 on DDP resistance in NSCLC was examined by xenograft tumor model in vivo. Results: Circ_0076305 was increased in NSCLC cell-derived exosomes, DDP-resistant NSCLC tissues and cells. Circ_0076305 knockdown elevated DDP sensitivity in vitro. Mechanically, circ_0076305 enhanced ABCC1 expression through sponging miR-186-5p, thus regulating DDP resistance of NSCLC. Furthermore, circ_0076305 silencing improved DDP sensitivity of NSCLC in vivo. Conclusion: The results from this study disclosed that circ_0076305 knockdown improved DDP sensitivity by the miR-186-5p/ABCC1 axis in NSCLC, hinting a potential circRNA-targeted therapy for NSCLC.
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Affiliation(s)
- Xinli Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Hailiang Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Housen Jiang
- Department of Orthopedic Surgery, and Weifang People's Hospital, Weifang, China
| | - Liang Qiao
- Department of Urology, Weifang People's Hospital, Weifang, China
| | - Chunhong Guo
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
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41
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Chen KB, Yang W, Xuan Y, Lin AJ. miR-526b-3p inhibits lung cancer cisplatin-resistance and metastasis by inhibiting STAT3-promoted PD-L1. Cell Death Dis 2021; 12:748. [PMID: 34321456 PMCID: PMC8319181 DOI: 10.1038/s41419-021-04033-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023]
Abstract
Chemotherapy remains the primary treatment of advanced solid cancer, including lung cancer. However, as first-line treatment, cisplatin-based therapy is restricted by the frequent development of drug resistance. Increasing data showed that the programmed cell death protein ligand 1 (PD-L1) plays a vital role in regulating cisplatin resistance. However, the underlying mechanisms are not fully understood. We found that miR-526b-3p expression declined while PD-L1 was elevated in cisplatin-resistant lung cancer compared to that in cisplatin-sensitive lung cancer by analyzing clinical samples. Significantly, miR-526b-3p was associated with response to cisplatin negatively. We further demonstrated that miR-526b-3p reversed cisplatin resistance, suppressed metastasis, and activated CD8+ T cells in a STAT3/PD-L1-dependent manner. Thus, our findings extended the knowledge of PD-L1-mediated cisplatin resistance of lung cancer. In addition, the introduction of miR-526b-3p provided a new clue to improve the anti-tumor effects of the combination of immunotherapy and chemotherapy.
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Affiliation(s)
- Kuan-Bing Chen
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Yang
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Ying Xuan
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ai-Jun Lin
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
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Chen HH, Zhang TN, Wu QJ, Huang XM, Zhao YH. Circular RNAs in Lung Cancer: Recent Advances and Future Perspectives. Front Oncol 2021; 11:664290. [PMID: 34295810 PMCID: PMC8290158 DOI: 10.3389/fonc.2021.664290] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/21/2021] [Indexed: 12/13/2022] Open
Abstract
Globally, lung cancer is the most commonly diagnosed cancer and carries with it the greatest mortality rate, with 5-year survival rates varying from 4–17% depending on stage and geographical differences. For decades, researchers have studied disease mechanisms, occurrence rates and disease development, however, the mechanisms underlying disease progression are not yet fully elucidated, thus an increased understanding of disease pathogenesis is key to developing new strategies towards specific disease diagnoses and targeted treatments. Circular RNAs (circRNAs) are a class of non-coding RNA widely expressed in eukaryotic cells, and participate in various biological processes implicated in human disease. Recent studies have indicated that circRNAs both positively and negatively regulate lung cancer cell proliferation, migration, invasion and apoptosis. Additionally, circRNAs could be promising biomarkers and targets for lung cancer therapies. This review systematically highlights recent advances in circRNA regulatory roles in lung cancer, and sheds light on their use as potential biomarkers and treatment targets for this disease.
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Affiliation(s)
- Huan-Huan Chen
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tie-Ning Zhang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Pediatric, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin-Mei Huang
- Department of Endocrinology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
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43
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Liu Y, Li Q, Gao Z, Lei F, Gao X. Circ-SPG11 knockdown hampers IL-1β-induced osteoarthritis progression via targeting miR-337-3p/ADAMTS5. J Orthop Surg Res 2021; 16:392. [PMID: 34140036 PMCID: PMC8212518 DOI: 10.1186/s13018-021-02526-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 06/06/2021] [Indexed: 11/10/2022] Open
Abstract
Background Osteoarthritis (OA) is responsible for the impotent disability in old people. Circular RNA (circRNA) has been reported to be related to the development of diseases. The lack of research on the role of circRNA spastic paraplegia 11 (circ-SPG11) results in conducting this study. Methods The expression of circ-SPG11, microRNA-337-3p (miR-337-3p), and aggrecanases like a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5) mRNA was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was used to measure the protein expression of extracellular matrix (ECM) degradation-related markers and ADAMTS5. Ribonuclease R (RNase R) was applied to test the stability of circ-SPG11 in CHON-001 cells. The viability, apoptosis, TNF-α and IL-6 production were determined by cell counting kit-8 (CCK-8) assay, flow cytometry assay, and enzyme-linked immunosorbent assay (ELISA), respectively. Meanwhile, the interaction between miR-337-3p and circ-SPG11 or ADAMTS5 was respectively predicted by Circinteractome or Starbase2.0, which was further verified by dual-luciferase reporter system and RNA binding protein immunoprecipitation (RIP) assay. Results Circ-SPG11 and ADAMTS5 were upregulated and miR-337-3p was downregulated in OA tissues and OA model cells. Circ-SPG11 knockdown allayed interleukin 1β (IL-1β)-induced restraint in viability and promotion in apoptosis, TNF-α, and IL-6 generation and ECM degradation in CHON-001 cells. Anti-miR-337-3p or ADAMTS5 overexpression correspondingly reversed si-circ-SPG11 or miR-337-3p overexpression-mediated facilitation in viability, and inhibition in apoptosis, TNF-α and IL-6 generation and ECM degradation in OA model cells. Moreover, anti-miR-337-3p ameliorated si-circ-SPG11-mediated inhibition in ADAMTS5 mRNA and protein expression in OA model cells. Conclusion Circ-SPG11 facilitated OA development via regulating miR-337-3p/ADAMTS5 axis. This finding might contribute to the improvement of OA therapy.
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Affiliation(s)
- Yongqiang Liu
- Department of Orthopedics, Shijiazhuang People's Hospital, No. 365 Jianhua South Road, Shijiazhang, Hebei, 050000, People's Republic of China
| | - Qian Li
- Department of Orthopedics, Shijiazhuang People's Hospital, No. 365 Jianhua South Road, Shijiazhang, Hebei, 050000, People's Republic of China
| | - Zhida Gao
- Department of Orthopedics, Shijiazhuang People's Hospital, No. 365 Jianhua South Road, Shijiazhang, Hebei, 050000, People's Republic of China
| | - Fang Lei
- Department of Orthopedics, Shijiazhuang People's Hospital, No. 365 Jianhua South Road, Shijiazhang, Hebei, 050000, People's Republic of China.
| | - Xuefeng Gao
- Department of Orthopedics, Shijiazhuang People's Hospital, No. 365 Jianhua South Road, Shijiazhang, Hebei, 050000, People's Republic of China
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Wei L, Jiang J. Targeting the miR-6734-3p/ZEB2 axis hampers development of non-small cell lung cancer (NSCLC) and increases susceptibility of cancer cells to cisplatin treatment. Bioengineered 2021; 12:2499-2510. [PMID: 34107856 PMCID: PMC8806905 DOI: 10.1080/21655979.2021.1936891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The unclear pathogenesis mechanisms and resistance of cancer cells to chemical drugs serious limits the development of effective treatment strategies for non-small cell lung cancer (NSCLC). In this study, we managed to investigate this issue, and identify potential cancer associated biomarkers for NSCLC diagnosis, prognosis and treatment. This study found that miR-6734-3p was downregulated in both NSCLC clinical specimens (tissues and serum) and cells, compared to the normal tissues and cells. Next, upregulation of miR-6734-3p inhibited cancer formation and progression in NSCLC cells in vitro and in vivo. Conversely, miR-6734-3p ablation had opposite effects and facilitated NSCLC development. In addition, miR-6734-3p bound to the 3ʹ untranslated region (3ʹUTR) of zinc finger E-box binding homeobox 2 (ZEB2) mRNA to suppress its expressions in NSCLC cells. Interestingly, the inhibiting effects of miR-6734-3p overexpression on NSCLC progression were abrogated by upregulating ZEB2. Furthermore, both upregulated miR-6734-3p and silencing of ZEB2 increased cisplatin-sensitivity in cisplatin-resistant NSCLC (CR-NSCLC) cells. Taken together, miR-6734-3p played an anti-tumor role to hinder cancer development and enhanced the cytotoxic effects of cisplatin treatment on NSCLC cells by downregulating ZEB2.
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Affiliation(s)
- Linying Wei
- Department of Respiratory and Critical Care Medicine, People's Hospital of Changshan, Quzhou City, Zhejiang Province, China
| | - Jianyang Jiang
- Department of Respiratory and Critical Care Medicine, People's Hospital of Quzhou, Quzhou City, Zhejiang Province, China
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45
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Huang L, Rong Y, Tang X, Yi K, Wu J, Wang F. Circular RNAs Are Promising Biomarkers in Liquid Biopsy for the Diagnosis of Non-small Cell Lung Cancer. Front Mol Biosci 2021; 8:625722. [PMID: 34136531 PMCID: PMC8201604 DOI: 10.3389/fmolb.2021.625722] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/19/2021] [Indexed: 01/15/2023] Open
Abstract
The high incidence and mortality of lung cancer make early detection of lung cancer particularly important. At present, the diagnosis of lung cancer mainly depends on diagnostic imaging and tissue biopsy. However, current diagnostics are not satisfactory owing to the low specificity and inability of multiple sampling. Accumulating evidence indicates that circular RNAs (circRNAs) play a critical role in cancer progression and are promising cancer biomarkers. In particular, circRNAs are considered novel specific diagnostic markers for non-small cell lung cancer (NSCLC). Liquid biopsy is an important method in the early diagnosis of cancer due to its high sensitivity and specificity, as well as the possibility of performing multiple sampling. circRNAs are stably present in exosomes and sometimes become part of circulating nucleic acids, making them ideal for liquid biopsy. In this review, we summarize the advances in the research on circRNAs in NSCLC, and also highlight their potential applications for NSCLC detection.
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Affiliation(s)
- Lanxiang Huang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuan Rong
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xuan Tang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kezhen Yi
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianyuan Wu
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
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Liu B, Li H, Liu X, Li F, Chen W, Kuang Y, Zhao X, Li L, Yu B, Jin X, Li Q. CircZNF208 enhances the sensitivity to X-rays instead of carbon-ions through the miR-7-5p /SNCA signal axis in non-small-cell lung cancer cells. Cell Signal 2021; 84:110012. [PMID: 33892093 DOI: 10.1016/j.cellsig.2021.110012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Mounting evidence suggests that circular RNAs (circRNAs) are closely related to the regulation of gene expression during tumour development. However, the role of circRNAs in modulating the radiosensitivity of non-small cell lung cancer (NSCLC) cells has not been explored. METHODS Transcriptome sequencing was used to explore the expression profiles of circRNAs in NSCLC. The expression level of circRNAs was changed by inducing instantaneous knockdown or overexpression. Changes in proliferation and radiosensitivity of NSCLC cells were investigated using CCK-8, EDU, and clonal survivals. RESULTS By analysing the circRNA expression profile of NSCLC cells, we found that circRNA ZNF208 (circZNF208) was significantly upregulated in a radioresistant NSCLC cell line (A549-R11), which was acquired from the parental NSCLC cell line A549. Knockout experiments indicated that circZNF208 enhanced the radiosensitivity of A549 and A549-R11 cells to X-rays. Mechanistically, circZNF208 upregulated SNCA expression by acting as a sponge of miR-7-5p and subsequently promoted the resistance of NSCLC cells to low linear energy transfer (LET) X-rays. However, this effect was not observed in NSCLC cells exposed to high-LET carbon ions. CONCLUSIONS Knockdown of circZNF208 altered the radiosensitivity of patients with NSCLC to X-rays but did not significantly change the sensitivity to carbon ions. Therefore, circZNF208 might serve as a potential biomarker and therapeutic target for NSCLC treatment with radiotherapy of different modalities.
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Affiliation(s)
- Bingtao Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongbin Li
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Xiongxiong Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feifei Li
- Northwest Normal University, Lanzhou, Gansu, China
| | - Weiqiang Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanbei Kuang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Linying Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Boyi Yu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Liu Y, Chen T, Zheng G. Exosome-transmitted circ-CARD6 facilitates posterior capsule opacification development by miR-31/FGF7 axis. Exp Eye Res 2021; 207:108572. [PMID: 33844960 DOI: 10.1016/j.exer.2021.108572] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/28/2021] [Accepted: 04/03/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Posterior capsular opacification (PCO) is the major vision-disrupting complication arising after cataract surgery. Circular RNAs (circRNAs) are biological active RNAs which were involved in various physiological functions. So far, the role of circRNA caspase recruitment domain family member 6 (circ-CARD6) in PCO is still unclear. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was applied to detect the expression of circ-CARD6, microRNA 31 (miR-31) and fibroblast growth factor 7 (FGF7) message RNA (mRNA). Western blot was used to analyze the protein expression. Transmission electron microscopy (TEM) was employed to capture the exosome image. The proliferation and metastasis were analyzed by cell counting kit-8 (CCK8), transwell and wound healing assays. The potential binding sequences between miR-31 and circ-CARD6 or FGF7 were respectively predicted by Circinteractome and Targetscan online tool, and verified by dual-luciferase reporter and RNA binding protein immunoprecipitation (RIP) assays. RESULTS Exosome-transmitted circ-CARD6 was highly expressed in PCO tissues and TGF-β2-treated SRA01/04 cells. Circ-CARD6 deletion repressed the proliferation, metastasis, EMT process and MAPK pathway, which was reversed by anti-miR-31 in TGF-β2-treated SRA01/04 cells. Meanwhile, circ-CARD6 sponged miR-31 which directly targeted FGF7 in TGF-β2-treated SRA01/04 cells. FGF7 overexpression allayed miR-31 overexpression-induced suppression in proliferation, metastasis, EMT process and MAPK pathway. Besides, circ-CARD6 regulated FGF7 expression by sponging miR-31. CONCLUSION Circ-CARD6 promoted PCO development via miR-31/FGF7 axis. This finding might contribute to the development of the targeted therapy for PCO.
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Affiliation(s)
- Yue Liu
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tao Chen
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guangying Zheng
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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Li S, Liu Y, Qiu G, Luo Y, Li X, Meng F, Li N, Xu T, Wang Y, Qin B, Xia S. Emerging roles of circular RNAs in non‑small cell lung cancer (Review). Oncol Rep 2021; 45:17. [PMID: 33649862 PMCID: PMC7876988 DOI: 10.3892/or.2021.7968] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of novel endogenous transcripts with limited protein‑coding abilities. CircRNAs have been demonstrated to function as critical regulators of tumor development and distant metastasis through binding to microRNAs (miRNAs) and interacting with RNA‑binding proteins, thereby regulating transcription and translation. Emerging evidence has illustrated that certain circRNAs can serve as biomarkers for diagnosis and prognosis of cancer, and/or serve as potential therapeutic targets. Expression of functional circRNAs is commonly dysregulated in cancer and this is correlated with advanced Tumor‑Node‑Metastasis stage, lymph node status, distant metastasis, poor differentiation and shorter overall survival of cancer patients. Recently, an increasing number of studies have shown that circRNAs are closely associated with NSCLC. Functional experiments have revealed that circRNAs are intricately associated with the pathological progression of NSCLC. The present review provides an overview of the regulatory effect of circRNAs in the development and progression of NSCLC, taking into consideration various physiological and pathological processes, such as proliferation, apoptosis, invasion and migration, and their potential value as biomarkers and therapeutic targets.
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Affiliation(s)
- Shanshan Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yize Liu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Xiang Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Fei Meng
- Department of Gynaecology and Obstetrics, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Nanyang Li
- Department of Pathology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Tiance Xu
- Second Department of Neurology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Central Laboratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Baoli Qin
- Department of Internal Medicine, Cancer Hospital of China Medical University/Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Shuyue Xia
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Dean's Office, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
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Mirzaei S, Mohammadi AT, Gholami MH, Hashemi F, Zarrabi A, Zabolian A, Hushmandi K, Makvandi P, Samec M, Liskova A, Kubatka P, Nabavi N, Aref AR, Ashrafizadeh M, Khan H, Najafi M. Nrf2 signaling pathway in cisplatin chemotherapy: Potential involvement in organ protection and chemoresistance. Pharmacol Res 2021; 167:105575. [PMID: 33771701 DOI: 10.1016/j.phrs.2021.105575] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/20/2021] [Accepted: 03/21/2021] [Indexed: 12/14/2022]
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a vital transcription factor and its induction is of significant importance for protecting against oxidative damage. Increased levels of Reactive Oxygen Species (ROS) stimulate Nrf2 signaling, enhancing the activity of antioxidant enzymes such as catalase, superoxide dismutase and glutathione peroxidase. These enzymes are associated with retarding oxidative stress. On the other hand, Nrf2 activation in cancer cells is responsible for the development of chemoresistance due to disrupting oxidative mediated-cell death by reducing ROS levels. Cisplatin (CP), cis-diamminedichloroplatinum(II), is a potent anti-tumor agent extensively used in cancer therapy, but its frequent application leads to the development of chemoresistance as well. In the present study, association of Nrf2 signaling with chemoresistance to CP and protection against its deleterious effects is discussed. Anti-tumor compounds, mainly phytochemicals, retard chemoresistance by suppressing Nrf2 signaling. Upstream mediators such as microRNAs can regulate Nrf2 expression during CP chemotherapy regimens. Protection against side effects of CP is mediated via activating Nrf2 signaling and its downstream targets activating antioxidant defense system. Protective agents that activate Nrf2 signaling, can ameliorate CP-mediated ototoxicity, nephrotoxicity and neurotoxicity. Reducing ROS levels and preventing cell death are the most important factors involved in alleviating CP toxicity upon Nrf2 activation. As pre-clinical experiments advocate the role of Nrf2 in chemoprotection and CP resistance, translating these findings to the clinic can provide a significant progress in treatment of cancer patients.
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Affiliation(s)
- Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Aliasghar Tabatabaei Mohammadi
- Asu Vanda Gene Research Company, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Science Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956 Istanbul, Turkey
| | - Amirhossein Zabolian
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Pooyan Makvandi
- Centre for Materials Interface, Istituto Italiano di Tecnologia, viale Rinaldo Piaggio 34, 56025 Pisa, Pontedera, Italy
| | - Marek Samec
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Alena Liskova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Noushin Nabavi
- Department of Urological Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, V6H3Z6 Canada
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA; Department of Translational Sciences, Xsphera Biosciences Inc., Boston, MA, USA
| | - Milad Ashrafizadeh
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956 Istanbul, Turkey; Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956 Istanbul, Turkey.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan.
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanashah University of Medical Sciences, Kermanshah 6715847141, Iran; Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Zhang W, Wang Z, Cai G, Huang P. Downregulation of Circ_0071589 Suppresses Cisplatin Resistance in Colorectal Cancer by Regulating the MiR-526b-3p/KLF12 Axis. Cancer Manag Res 2021; 13:2717-2731. [PMID: 33790646 PMCID: PMC8001125 DOI: 10.2147/cmar.s294880] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/28/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Chemoresistance is one key factor for the failure of cisplatin (CDDP)-based therapy in colorectal cancer (CRC). Although circular RNAs (circRNAs) are associated with chemoresistance development, the role and mechanism of hsa_circ_0071589 (circ_0071589) in the development of CDDP resistance in CRC remain unclear. METHODS CDDP-resistant and sensitive CRC samples were collected. CDDP-resistant HCT116/CDDP and LOVO/CDDP cells were established. The levels of circ_0071589, microRNA (miR)-526b-3p and Krüppel-like factor 12 (KLF12) were detected via quantitative reverse transcription polymerase chain reaction, Western blot or immunohistochemistry. Cell viability, proliferation, cycle process, apoptosis, migration and invasion were examined via Cell Counting Kit-8, flow cytometry, transwell assay and Western blot. The association between miR-526b-3p and circ_0071589 or KLF12 was predicted by starBase, and explored via dual-luciferase reporter assay and RNA immunoprecipitation. The effect of circ_0071589 on CDDP resistance in CRC in vivo was investigated using a xenograft model. RESULTS Circ_0071589 level was upregulated in CDDP-resistant CRC tissue samples and cell lines. Circ_0071589 knockdown inhibited CDDP resistance, proliferation, migration and invasion, and promoted apoptosis in CDDP-resistant CRC cells. Circ_0071589 was a sponge for miR-526b-3p. MiR-526b-3p knockdown reversed the role of circ_0071589 inhibition in CDDP resistance. MiR-526b-3p suppressed CDDP resistance by directly targeting KLF12. Circ_0071589 regulated KLF12 expression through modulating miR-526b-3p. Circ_0071589 knockdown aggravated CDDP-induced reduction of xenograft tumor growth by upregulating miR-526b-3p and decreasing KLF12. CONCLUSION Knockdown of circ_0071589 repressed CDDP resistance in CDDP-resistant CRC cells by regulating the miR-526b-3p/KLF12 axis.
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Affiliation(s)
- Weitong Zhang
- Department of Anorectal Surgery, Hainan General Hospital, Haikou, Hainan, 570311, People’s Republic of China
| | - Zhenfen Wang
- Department of Anorectal Surgery, Hainan General Hospital, Haikou, Hainan, 570311, People’s Republic of China
| | - Guohao Cai
- Department of Anorectal Surgery, Hainan General Hospital, Haikou, Hainan, 570311, People’s Republic of China
| | - Ping Huang
- Department of Anorectal Surgery, Hainan General Hospital, Haikou, Hainan, 570311, People’s Republic of China
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