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Huang Y, Wu Z, Peng Z, Liu A, Yuan W, Han D, Peng J. Hsa_circ_0004872 alleviates meningioma progression by sponging miR-190a-3p/PTEN signaling. BMC Cancer 2024; 24:345. [PMID: 38500077 PMCID: PMC10949562 DOI: 10.1186/s12885-024-12084-1] [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: 07/12/2023] [Accepted: 03/04/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Meningioma, the most prevalent intracranial tumor, possesses a significant propensity for malignant transformation. Circular RNAs (circ-RNAs), a class of non-coding RNAs, have emerged as crucial players in tumorigenesis. This study explores the functional relevance of hsa_circ_0004872, a specific circ-RNA, in the context of meningioma. METHODS Molecular structure and stability of hsa_circ_0004872 were elucidated through PCR identification. Meningioma cell proliferation and apoptosis were assessed using the CCK-8 assay and flow cytometry, respectively. Gene and protein expression were analyzed via qRT-PCR and western blot. Molecular interactions were confirmed through dual-luciferase reporter gene and RIP assays. RESULTS Hsa_circ_0004872, derived from exons 2 to 4 of the host gene MAPK1, demonstrated enhanced stability compared to its host MAPK1. Clinical data described that hsa_circ_0004872 was reduced in meningioma tissues and cell lines, and negatively correlated to poor survival rate of meningioma patients. Overexpression of hsa_circ_0004872 exhibited inhibitory effects on cell proliferation and promotion of apoptosis in vitro. Subsequent investigations unveiled a direct interaction between hsa_circ_0004872 and miR-190a-3p, leading to the activation of the PI3K/AKT signaling pathway through targeting PTEN. Notably, miR-190a-3p silence accelerated the apoptosis and proliferation inhibition of meningioma cells by inactivating PTEN/PI3K/AKT signaling, while miR-190a-3p overexpression showed an opposite effect, which greatly reversed the anti-tumor effects of hsa_circ_0004872 overexpression. CONCLUSION In summary, our findings highlighted the intricate role of hsa_circ_0004872 in meningioma, shedding light on the regulatory mechanisms involving circ-RNAs in tumor progression. This positions hsa_circ_0004872 as a potential key regulatory factor in meningioma with implications for future therapeutic interventions.
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Affiliation(s)
- Yongkai Huang
- Neurosurgery Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Zhihui Wu
- Surgery Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Zewei Peng
- Neurosurgery Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Anmin Liu
- Emergency Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Wen Yuan
- Neurosurgery Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Deqing Han
- Neurosurgery Department, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China
| | - Junmin Peng
- Department of Anesthesiology, Zhuzhou Hospital Affiliated to Xiangya Medical College, Central South University, 412000, Zhuzhou, Hunan Province, China.
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Wu X, Gao H, Li F. hsa_circ_0037722 Drives Keloid Formation by Interacting with miR-140-3p and NR2F2. Crit Rev Immunol 2024; 44:17-29. [PMID: 37947069 DOI: 10.1615/critrevimmunol.2023050332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Keloids can invade normal skin tissues to lead to itching, pain, hemorrhaging and suppuration, thereby affecting the mental health of patients. circRNAs can participate in keloids formation, but the role of hsa_circ_0037722 in keloids is still unknown. The goal of our study was to reveal the role of hsa_circ_0037722 in keloids. The levels of hsa_circ_0037722, miR-140-3p and NR2F2 in keloids was confirmed by qRT-PCR. Cell experiments were applied to assess the effect of hsa_circ_0037722/miR-140-3p/NR2F2 axis on keloids formation. In addition, the correlation among hsa_circ_0037722, miR-140-3p and NR2F2 was confirmed by luciferase assay. hsa_circ_0037722 and NR2F2 were upregulated in keloids tissues and keloids fibroblasts, whereas miR-140-3p was downregulated in keloids tissues and keloids fibroblasts. The abilities of proliferation and metastasis of keloids fibroblasts were impaired by silencing hsa_circ_0037722. However, miR-140-3p inhibitor or NR2F2 overexpression could restore the inhibitory function of hsa_circ_0037722 knockdown in keloid fibroblasts due to their targeting relationship. Taken together, hsa_circ_0037722 can facilitate keloids formation by interacting with miR-140-3p to relieve the suppression of miR-140-3p for NR2F2. The findings of this study may provide a novel idea for developing molecular targeted therapies for keloid.
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Affiliation(s)
- Xixi Wu
- Department of Plastic Surgery, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430000, Hubei, China
| | - Hu Gao
- Wound Repair & Rehabilitation Center, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430000, Hubei, China
| | - Fan Li
- Department of Plastic Surgery, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430000, Hubei, China
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3
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Qian F, Zhong M, Wu W, Li Y, Yuan H. Establishment and verification of ceRNA network analysis and prognostic evaluation model for breast cancer. Panminerva Med 2023; 65:410-411. [PMID: 34486364 DOI: 10.23736/s0031-0808.21.04460-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fengyuan Qian
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Ming Zhong
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Wei Wu
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Yongping Li
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Hao Yuan
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China -
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Li H, Jin X, Lai M, Li Y, Li R, Yang H, Yang B. Knockdown of circ_CLIP2 regulates the proliferation, metastasis and apoptosis of glioma cells through miR-641/EPHA3/STAT3 axis. J Neurogenet 2023; 37:93-102. [PMID: 37129498 DOI: 10.1080/01677063.2023.2199067] [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: 04/18/2022] [Accepted: 03/30/2023] [Indexed: 05/03/2023]
Abstract
A great amount of reaches have confirmed that circular RNAs (circRNAs) are novel regulators in glioma progression. Here, our work aimed to probe the specific role of circ_CLIP2 in glioma. The mRNA and protein expressions were analyzed by qRT-PCR and western blot, respectively. Cell viability, migration, invasion and apoptosis were examined by MTT assay, tranwell and flow cytometry assays, respectively. Moreover, the binding relationships between circ_CLIP2, microRNA (miR)-641 and erythropoietin-producing human hepatocellular (Eph)A3 were verified by dual luciferase reporter gene assay and/or RIP assay. The following data showed that circ_CLIP2 and EPHA3 were markedly increased in glioma tissues and cells, while miR-647 was downregulated. Gain- and loss-of-function experiments discovered that circ_CLIP2 knockdown remarkably inhibited cell proliferation, migration and invasion and promoted cell apoptosis of glioma cells, while these effects of circ_CLIP2 knockdown were abolished by miR-641 inhibition. Circ_CLIP2 was proved as a sponge of miR-641 to competitively upregulate EPHA3 expression. In addition, EPHA3 overexpression could abolish the inhibitory effects of miR-641 overexpression on the malignant behaviors of glioma cells by activating the signal transducer and activator of transcription 3 (STAT3). These findings elucidated that circ_CLIP2 knockdown suppressed glioma development by regulation of the miR-641/EP HA3/STAT3 axis, which provided a novel mechanism for understanding the pathogenesis of glioma.
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Affiliation(s)
- Huibing Li
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
| | - Xin Jin
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
| | - Mingyao Lai
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
| | - Yongshi Li
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
| | - Ruixing Li
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
| | - Huihui Yang
- Department of Ultrasonography, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, PR China
| | - Baoying Yang
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong Province, PR China
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Yin Z, Wang J, Li T, Ma L, Kang J, Liu G. miR-188-5p and Host MALAT1 Regulate RBE Cell Migration, Invasion, and Apoptosis via Up-regulating PSMD10 in Cholangiocarcinoma. Appl Biochem Biotechnol 2023; 195:655-671. [PMID: 36121635 DOI: 10.1007/s12010-022-04136-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2022] [Indexed: 02/08/2023]
Abstract
The study is designed to explore the regulatory network that MALAT1 competitively binds with miR-188-5p to up-regulate PSMD10 to facilitate cholangiocarcinoma cell migration and invasion and suppress apoptosis. qRT-PCR and fluorescence in situ hybridization (FISH) were used to examine the expression and positive signal of MALAT1 and miR-188-5p in cholangiocarcinoma tissues and HIBEC, HCCC-9810, RBE, and QBC939 cells. Western blot, qRT-PCR, and immunohistochemistry were selected to detect PSMD10 expression in cholangiocarcinoma tissues and cell lines. Dual luciferase reporter gene assay was adopted to verify that miR-188-5p targeted MALAT1 and PSMD10. qRT-PCR, pull down, and western blot were used to examine the regulation of MALAT1-miR-188-5p-PSMD10 axis. Transwell, wound healing assay, and Tunel cell apoptosis were adopted to respectively detect the regulatory abilities of MALAT1-miR-188-5p-PSMD10 axis on cell invasion, migration, and apoptosis. Western blot was used to detect the regulation mechanism of MALAT1 on Bax, Bcl-2, and caspase-3 proteins. Nude mice subcutaneous xenograft model of cholangiocarcinoma was established to examine the impacts of MALAT1 on subcutaneous tumor growth. Immunohistochemistry was adopted to examine the positive indicator of Ki67 antibodies and SMD10 antibodies in each group. MALAT1 and PSMD10 were highly expressed in cholangiocarcinoma tissues and cell lines, while miR-188-5p was lowly expressed. MALAT1 could competitively bind to miR-188-5p, and miR-188-5p could negatively regulate PSMD10. MALAT1, In-miR-188-5p, and PSMD10 could facilitate cell invasion and migration and inhibit apoptosis, while siMALAT1, miR-188-5p, and siPSMD10 produced an opposite result. MALAT1-miR-188-5p-PSMD10 axis could promote RBE cell invasion and migration and inhibit apoptosis, whereas siMALAT1-In-miR-188-5p-siPSMD10 axis showed an opposite result. On the other hand, it was verified that up-regulation/down-regulation of MALAT1 can inhibit/promote Bax and caspase-3 proteins and promote/inhibit the expression of Bcl-2 protein. MALAT1 could facilitate subcutaneous tumor growth and enhance cell proliferation and positive signal of PSMD10, while miR-188-5p worked in an opposite direction. MALAT1 competitively binds to miR-188-5p to up-regulate mRNA translation and protein expression of PSMD10, thereby facilitating cholangiocarcinoma cell invasion and migration and inhibiting its apoptosis. However, interfering MALAT1-miR-188-5p-PSMD10 axis could inhibit the occurrence and development of cholangiocarcinoma.
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Affiliation(s)
- Zhaoqiang Yin
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Jianlong Wang
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Tao Li
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Lifeng Ma
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Jiansheng Kang
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Guochao Liu
- Department of Minimally Invasive and Biliary Surgery, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China.
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Zhang D, Huang H, Zheng T, Zhang L, Cui B, Liu Y, Tan S, Zhao L, Tian T, Gao L, Fu Q, Cheng Z, Zhao Y. Polymeric immunoglobulin receptor suppresses colorectal cancer through the AKT-FOXO3/4 axis by downregulating LAMB3 expression. Front Oncol 2022; 12:924988. [PMID: 35992840 PMCID: PMC9389318 DOI: 10.3389/fonc.2022.924988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Colorectal cancer (CRC) remains one of the most common malignancies worldwide and its mechanism is unclear. Polymeric immunoglobulin receptor (PIGR) which plays an important role in mucosal immunity is widely expressed in the mucosal epithelium and is dysregulated in different tumors. However, the role and underlying mechanisms of PIGR in CRC remain unclear. Here, we demonstrated that PIGR was hypermethylated and downregulated in our cohort (N = 272), and these features were associated with reduced overall survival in patients (HRmethylation 1.61, 95% CI [1.11-2.33]). These findings were validated by external TCGA and GEO data. Moreover, PIGR overexpression inhibits CRC cell malignant phenotypes in vitro and impedes CRC cells growth in male BALB/c nude mice. Mechanistically, PIGR physically associates with RE1 silencing transcription factor (REST) and blocks the transcription of laminin subunit beta 3 (LAMB3). Subsequently, the AKT-FOXO3/4 axis was suppressed by downregulated LAMB3. In the drug sensitive assay, PIGR-overexpressing cells were more sensitive to cisplatin and gemcitabine. Together, PIGR may serve as a powerful prognostic biomarker and putative tumor suppressor by suppressing the AKT-FOXO3/4 axis by downregulating LAMB3 in CRC. Our study may offer a novel therapeutic strategy for treating CRC patients who highly express PIGR with cisplatin and gemcitabine.
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Affiliation(s)
- Ding Zhang
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Hao Huang
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Ting Zheng
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Lei Zhang
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Binbin Cui
- Department of Colorectal Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yanlong Liu
- Department of Colorectal Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shiheng Tan
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Liyuan Zhao
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Tian Tian
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Lijing Gao
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Qingzhen Fu
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Zesong Cheng
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
| | - Yashuang Zhao
- Department of Epidemiology, School of Public Health, NHC Key Laboratory of Etiology and Epidemiology (23618504), Harbin Medical University, Harbin, China
- *Correspondence: Yashuang Zhao,
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Wang S, Chen A, Zhu W, Feng D, Wei J, Li Q, Shi X, Lv X, Liu M. Characterization of Fatty Acid Metabolism in Lung Adenocarcinoma. Front Genet 2022; 13:905508. [PMID: 35910199 PMCID: PMC9329533 DOI: 10.3389/fgene.2022.905508] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/14/2022] [Indexed: 01/01/2023] Open
Abstract
Background: Lung adenocarcinoma (LUAD) is the most common subtype of non-small cell lung cancer. Fatty acid metabolism takes part in malignancy progression. However, the roles fatty acid metabolism plays in LUAD are still unclear. Methods: The transcriptomic and clinical data of LUAD patients from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases were extracted. ssGSEA, WGCNA, univariable Cox regression, and LASSO Cox regression analyses were performed to identify the fatty acid metabolism-related genes which influenced the overall survival (OS) and build a fatty acid-related risk score (FARS) model. A nomogram was established based on the FARS and other clinicopathological features, and ROC and calibration plots were used to validate the prediction accuracy. The tumor microenvironment (TME) of patients with high and low FARS was compared. Results: A total of 38 genes were identified to be independently related to the survival outcome and put into a FARS model. High FARS patients exhibited significantly worse OS. The nomogram included the FARS and pathological stage, and the AUC of the nomogram predicting 1-, 2-, 3-, 4-, and 5-year OS was 0.789, 0.807, 0.798, 0.809, and 0.753, respectively. Calibration plots also indicated good accuracy. Moreover, the samples of the high FARS had higher expression of PDL1. Conclusion: We constructed a FARS model which could accurately predict the survival outcome of the LUAD patients. The genes of the FARS are related to the tumor microenvironment and patients with high FARS can potentially benefit more from anti-PD1/PDL1 immunotherapy. In addition, the mechanisms of the genes in the FARS affecting prognosis are worthy of further research to develop new gene-targeted drugs.
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Affiliation(s)
- Suyu Wang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Aona Chen
- Department of General Surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Wanli Zhu
- Department of General Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Di Feng
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Juan Wei
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Quanfu Li
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuan Shi
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xin Lv
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xin Lv, ; Meiyun Liu,
| | - Meiyun Liu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xin Lv, ; Meiyun Liu,
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Tong T, Qin X, Jiang Y, Guo H, Wang X, Li Y, Xie F, Lu H, Zhai P, Ma H, Zhang J. A novel CREB5/TOP1MT axis confers cisplatin resistance through inhibiting mitochondrial apoptosis in head and neck squamous cell carcinoma. BMC Med 2022; 20:231. [PMID: 35773668 PMCID: PMC9248137 DOI: 10.1186/s12916-022-02409-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cisplatin resistance is one of the main causes of treatment failure and death in head and neck squamous cell carcinoma (HNSCC). A more comprehensive understanding of the cisplatin resistance mechanism and the development of effective treatment strategies are urgent. METHODS RNA sequencing, RT-PCR, and immunoblotting were used to identify differentially expressed genes associated with cisplatin resistance. Gain- and loss-of-function experiments were performed to detect the effect of CREB5 on cisplatin resistance and mitochondrial apoptosis in HNSCC. Chromatin immunoprecipitation (ChIP) assay, dual-luciferase reporter assay, and immunoblotting experiments were performed to explore the underlying mechanisms of CREB5. RESULTS CREB5 was significantly upregulated in cisplatin-resistant HNSCC (CR-HNSCC) patients, which was correlated with poor prognosis. CREB5 overexpression strikingly facilitated the cisplatin resistance of HNSCC cells in vitro and in vivo, while CREB5 knockdown enhanced cisplatin sensitivity in CR-HNSCC cells. Interestingly, the activation of AKT signaling induced by cisplatin promoted nucleus translocation of CREB5 in CR-HNSCC cells. Furthermore, CREB5 transcriptionally activated TOP1MT expression depending on the canonical motif. Moreover, CREB5 silencing could trigger mitochondrial apoptosis and overcome cisplatin resistance in CR-HNSCC cells, which could be reversed by TOP1MT overexpression. Additionally, double-targeting of CREB5 and TOP1MT could combat cisplatin resistance of HNSCC in vivo. CONCLUSIONS Our findings reveal a novel CREB5/TOP1MT axis conferring cisplatin resistance in HNSCC, which provides a new basis to develop effective strategies for overcoming cisplatin resistance.
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Affiliation(s)
- Tong Tong
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, 200001, People's Republic of China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200002, People's Republic of China
| | - Xing Qin
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China
| | - Yingying Jiang
- Department of Dentistry, Affiliated Hospital of Weifang Medical University, Weifang, 261000, People's Republic of China
| | - Haiyan Guo
- Department of Clinical Laboratory, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China
| | - Xiaoning Wang
- Department of Oral Pathology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China
| | - Yan Li
- Shanghai Institute of Immunology Center for Microbiota & Immune Related Diseases, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, People's Republic of China
| | - Fei Xie
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China
| | - Hao Lu
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China
| | - Peisong Zhai
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China
| | - Hailong Ma
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China.
| | - Jianjun Zhang
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, No. 639, Zhizaoju Rd, Shanghai, 200011, People's Republic of China.
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9
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Ma W, Sun X, Zhang S, Chen Z, Yu J. Circ_0039960 regulates growth and Warburg effect of breast cancer cells via modulating miR-1178/PRMT7 axis. Mol Cell Probes 2022; 64:101829. [PMID: 35597500 DOI: 10.1016/j.mcp.2022.101829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND Breast cancer (BC) is a serious threat to women's life and healthy. Increasing evidence indicated that blocking Warburg effect could attenuate the development of BC. Circular RNAs (circRNAs) has been found to be dysregulated in various carcinomas, including BC. Our study aims to illustrate the role and regulatory mechanism of circ_0039960 in BC development. METHODS RT-qPCR and western blotting were utilized to evaluate the expression of circ_0039960 in tissues recruited from 32 cases of BC patients and also BC cell lines. Circ_0039960 shRNA was transfected into cells to explore its function on cell processes. CCK-8, flow cytometry and ELISA were used to measure cell viability, cell cycle and apoptosis. Warburg effect was detected by using commercial kits. Besides, bioinformatic prediction, RIP and luciferase reporter assays were performed to validate the interactions between circ_0039960, miR-1178 and PRMT7. RESULTS The results showed that circ_0039960 and PRMT7 were both up-regulated, while miR-1178 was down-regulated, in BC tissues and cells. Silencing circ_0039960 effectively inhibited cell viability and Warburg effect of BC cells, also, induced cell cycle arrest and apoptosis. Moreover, we validated that circ_0039960 positively mediated PRMT7 expression via directly targeting to miR-1178. The inhibition of miR-1178 and overexpression of PRMT7 reversed the effect of circ_0039960 knockdown on BC cell growth and Warburg effect. CONCLUSION In general, our research demonstrated that circ_0039960 regulates cell growth and Warburg effect in BC cells via miR-1178/PRMT7 axis. This may provide new evidence for the exploration of BC diagnostic and therapeutic targets.
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Affiliation(s)
- Weichang Ma
- Department of Thyroid and Breast Surgury, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, Shandong province, China
| | - Xiaojun Sun
- Department of Thyroid and Breast Surgury, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, Shandong province, China
| | - Shupeng Zhang
- Intensive Care Unit, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, Shandong province, China
| | - Zhenghua Chen
- Department of Thyroid and Breast Surgury, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, Shandong province, China
| | - Jianing Yu
- Department of Thyroid and Breast Surgury, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, Shandong province, China.
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10
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Morovat P, Morovat S, Ashrafi AM, Teimourian S. Identification of potentially functional circular RNAs hsa_circ_0070934 and hsa_circ_0004315 as prognostic factors of hepatocellular carcinoma by integrated bioinformatics analysis. Sci Rep 2022; 12:4933. [PMID: 35322101 PMCID: PMC8943026 DOI: 10.1038/s41598-022-08867-w] [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] [Received: 09/29/2021] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most prevalent cancers worldwide, which has a high mortality rate and poor treatment outcomes with yet unknown molecular basis. It seems that gene expression plays a pivotal role in the pathogenesis of the disease. Circular RNAs (circRNAs) can interact with microRNAs (miRNAs) to regulate gene expression in various malignancies by acting as competitive endogenous RNAs (ceRNAs). However, the potential pathogenesis roles of the ceRNA network among circRNA/miRNA/mRNA in HCC are unclear. In this study, first, the HCC circRNA expression data were obtained from three Gene Expression Omnibus microarray datasets (GSE164803, GSE94508, GSE97332), and the differentially expressed circRNAs (DECs) were identified using R limma package. Also, the liver hepatocellular carcinoma (LIHC) miRNA and mRNA sequence data were retrieved from TCGA and differentially expressed miRNAs (DEMIs) and mRNAs (DEGs) were determined using the R DESeq2 package. Second, CSCD website was used to uncover the binding sites of miRNAs on DECs. The DECs' potential target miRNAs were revealed by conducting an intersection between predicted miRNAs from CSCD and downregulated DEMIs. Third, candidate genes were uncovered by intersecting targeted genes predicted by miRWalk and targetscan online tools with upregulated DEGs. The ceRNA network was then built using the Cytoscape software. The functional enrichment and the overall survival time of these potential targeted genes were analyzed, and a PPI network was constructed in the STRING database. Network visualization was performed by Cytoscape, and ten hub genes were detected using the CytoHubba plugin tool. Four DECs (hsa_circ_0000520, hsa_circ_0008616, hsa_circ_0070934, hsa_circ_0004315) were obtained and six miRNAs (hsa-miR-542-5p, hsa-miR-326, hsa-miR-511-5p, hsa-miR-195-5p, hsa-miR-214-3p, and hsa-miR-424-5p) which are regulated by the above DECs were identified. Then 543 overlapped genes regulated by six miRNAs mentioned above were predicted. Functional enrichment analysis showed that these genes are mostly associated with regulatory pathways in cancer. Ten hub genes (TTK, AURKB, KIF20A, KIF23, CEP55, CDC6, DTL, NCAPG, CENPF, PLK4) have been screened from the PPI network of the 204 survival-related genes. KIF20A, NCAPG, TTK, PLK4, and CDC6 were selected for the highest significance p-values. At the end, a circRNA-miRNA-mRNA regulatory axis was established for five final selected hub genes. This study implies the potential pathogenesis of the obtained network and proposes that the two DECs (has_circ_0070934 and has_circ_0004315) may be important prognostic markers for HCC.
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Affiliation(s)
- Pejman Morovat
- Department of Medical Biotechnology, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Science, Babol, Iran
| | - Saman Morovat
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Arash M Ashrafi
- Neuroscience Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Shahram Teimourian
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
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11
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An C, Wang M, Yao W. Exhausting hsa_circ_0072088 restrains proliferation, motility and angiogenesis of breast carcinoma cells through regulating miR-1236-3p and RRM2 in a ceRNA pathway. Clin Breast Cancer 2022. [DOI: 10.1016/j.clbc.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Kang X, Li X, Li Y. Sevoflurane Suppresses the Proliferation, Migration and Invasion of Colorectal Cancer Through Regulating Circ_0000423/miR-525-5p/SGPP1 Network. Cell Mol Bioeng 2022; 15:219-230. [PMID: 35401845 PMCID: PMC8938590 DOI: 10.1007/s12195-021-00717-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/20/2021] [Indexed: 01/24/2023] Open
Abstract
Introduction Sevoflurane (SEV) has been shown to inhibit the malignant progression in many cancers, including colorectal cancer (CRC). However, it is not clear whether SEV regulates the progression of CRC by mediating the circular RNA (circRNA) axis. Methods Different concentrations of SEV were used to treat CRC cells. Cell proliferation, migration and invasion were determined by cell counting kit 8 assay, colony formation assay and transwell assay. The expression of circ_0000423, microRNA (miR)-525-5p and sphingosine-1-phosphate phosphatase 1 (SGPP1) mRNA was measured by quantitative real-time PCR. Cell apoptosis was assessed using flow cytometry, and protein expression was measured by western blot analysis. Dual-luciferase reporter assay and RIP assay were performed to confirm the interactions among circ_0000423, miR-525-5p and SGPP1. Animal experiments were performed to explore the effect of SEV and circ_0000423 on CRC tumorigenesis. Results SEV could inhibit CRC cell proliferation, migration and invasion. Circ_0000423 was upregulated in CRC and its expression could be reduced by SEV. Overexpressed circ_0000423 reversed the inhibitory effect of SEV on CRC cell proliferation, migration and invasion and the promotion effect on cell apoptosis. MiR-525-5p could be sponged by circ_0000423, and its overexpression also abolished the regulation of circ_0000423 on the progression of SEV-treated CRC cells. In addition, SGPP1 was confirmed to be a target of miR-525-5p, and its expression was positively regulated by circ_0000423. MiR-525-5p inhibitor promoted CRC cell progression under the treatment of SEV, while these effects could be overturned by SGPP1 silencing. Furthermore, the inhibition effect of SEV on CRC tumorigenesis also could be abolished by overexpressing circ_0000423. Conclusion Our results showed that SEV inhibited CRC progression through the regulation of circ_0000423/miR-525-5p/SGPP1 axis. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-021-00717-5.
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Affiliation(s)
- Xiaofang Kang
- grid.488137.10000 0001 2267 2324Department of Anesthesiology, The 980 Hospital of the Joint Logistics Support Force of the Chinese People’s Liberation Army, No. 398, Zhongshan West Road, Shijiazhuang City, 050000 Hebei Province China
| | - Xiaocong Li
- grid.488137.10000 0001 2267 2324Department of Anesthesiology, The 980 Hospital of the Joint Logistics Support Force of the Chinese People’s Liberation Army, No. 398, Zhongshan West Road, Shijiazhuang City, 050000 Hebei Province China
| | - Yanli Li
- grid.488137.10000 0001 2267 2324Department of Anesthesiology, The 980 Hospital of the Joint Logistics Support Force of the Chinese People’s Liberation Army, No. 398, Zhongshan West Road, Shijiazhuang City, 050000 Hebei Province China
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13
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Knockdown of circRNA-Memo1 Reduces Hypoxia/Reoxygenation Injury in Human Brain Endothelial Cells Through miRNA-17-5p/SOS1 Axis. Mol Neurobiol 2022; 59:2085-2097. [PMID: 35041140 DOI: 10.1007/s12035-022-02743-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/09/2022] [Indexed: 12/23/2022]
Abstract
Circ-Memo1 has been proved to be upregulated in ischemia-reperfusion induced acute injury of kidney tissues. However, the potential role of circ-Memo1 in cerebral hypoxia/reoxygenation (H/R) injury is still unclear.Blood samples were collected from 25 ischemic stroke patients and 25 healthy controls. To construct the H/R model, human brain microvascular endothelial cells (HBMVECs) were cultured under the hypoxic condition, followed by reoxygenation. Cell viability was analyzed by MTT assay. Flow cytometry was carried out to examine cell apoptosis. The level of malondialdehyde (MDA) and the activity of superoxide dismutase (SOD) were measured by MDA and SOD assay kits, respectively. The levels of TNF-α, IL-1β, and IL-6 were determined by enzyme-linked immunosorbent assay (ELISA). Dual-luciferase reporter gene detection was employed to verify the binding relationships between circ-Memo1, miR-17-5p, and SOS1.Circ-Memo1 and SOS1 expressions were increased, and miR-17-5p expression was reduced in ischemic stroke patients. Circ-Memo1 silencing promoted cell viability, inhibited the activation of ERK/NF-κB signaling pathway, reduced oxidative stress and inflammatory response, and inhibited cell apoptosis. Moreover, miR-17-5p functioned as the sponge of circ-Memo1, and SOS1 was identified as the target of miR-17-5p. The protective effect of circ-Memo1 knockdown on cell injury after H/R treatment was weakened by miR-17-5p inhibition.Knockdown of circ-Memo1 alleviated H/R injury of HBMVEC cells by regulating the miR-17-5p/SOS1 axis, indicating that circ-Memo1 might be a potential treatment target for cerebral H/R injury.
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SUN XF, LI L, LIU YB. Curcumin played an anti-cancer role in colorectal cancer via mediating circ_KIAA1199-related regulatory axis. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.86221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Xue-Feng SUN
- Chongqing University Three Gorges Hospital, China
| | - Liang LI
- Chongqing University Three Gorges Hospital, China
| | - Yan-Bing LIU
- Chongqing University Three Gorges Hospital, China
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15
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Wang J, Yang K, Cao J, Li L. Knockdown of circular RNA septin 9 inhibits the malignant progression of breast cancer by reducing the expression of solute carrier family 1 member 5 in a microRNA-149-5p-dependent manner. Bioengineered 2021; 12:10624-10637. [PMID: 34738502 PMCID: PMC8809977 DOI: 10.1080/21655979.2021.2000731] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) is the most frequently diagnosed cancer in women. Increasing evidence suggests that circular RNA (circRNA) exerts critical functions in BC progression. However, the roles of circRNA septin 9 (circSEPT9) in BC development and the underneath mechanism remain largely unclear so far. In this work, the RNA levels of circSEPT9, microRNA-149-5p (miR-149-5p) and solute carrier family 1 member 5 (SLC1A5) were detected by quantitative real-time polymerase chain reaction. Western blot was performed to check protein expression. Glutamine uptake, cell proliferation and cell apoptosis were investigated by glutamine uptake, cell counting kit-8, cell colony formation, 5-Ethynyl-29-deoxyuridine, flow cytometry analysis or DNA content quantitation assay. The interactions of miR-149-5p with circSEPT9 and SLC1A5 were identified by a dual-luciferase reporter assay. Mouse model assay was carried out to analyze the effect of circSEPT9 on tumor formation in vivo. Results showed that circSEPT9 and SLC1A5 expression were significantly upregulated, while miR-149-5p was downregulated in BC tissues and cells as compared with paracancerous normal breast tissues and human normal breast cells. Knockdown of circSEPT9 or SLC1A5 inhibited glutamine uptake and cell proliferation, but induced cell apoptosis in BC cells. SLC1A5 overexpression relieved circSEPT9 silencing-induced repression of BC cell malignancy. In mechanism, circSEPT9 regulated SLC1A5 expression by sponging miR-149-5p. In support, circSEPT9 knockdown led to delayed tumor tumorigenesis in vivo. In summary, these results indicates that circSEPT9 may act an oncogenic role in BC malignant progression by regulating miR-149-5p/SLC1A5 pathway, providing a novel mechanism responsible for BC development.
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Affiliation(s)
- Jianjun Wang
- Department of Breast and Thyroid Tumors Surgery, The First People’s Hospital of Yunnan Province, Kunhua Hospital Affiliated to Kunming University of Science and Technology, Yunnan, China
| | - Kunxian Yang
- Department of Breast and Thyroid Tumors Surgery, The First People’s Hospital of Yunnan Province, Kunhua Hospital Affiliated to Kunming University of Science and Technology, Yunnan, China
| | - Junyu Cao
- Department of Breast and Thyroid Tumors Surgery, The First People’s Hospital of Yunnan Province, Kunhua Hospital Affiliated to Kunming University of Science and Technology, Yunnan, China
| | - Li Li
- Department of Breast and Thyroid Tumors Surgery, The First People’s Hospital of Yunnan Province, Kunhua Hospital Affiliated to Kunming University of Science and Technology, Yunnan, China
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Zhang M, Bai X, Zeng X, Liu J, Liu F, Zhang Z. circRNA-miRNA-mRNA in breast cancer. Clin Chim Acta 2021; 523:120-130. [PMID: 34537217 DOI: 10.1016/j.cca.2021.09.013] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/24/2022]
Abstract
Among cancers, breast cancer has the highest incidence rate among women and poses a tremendous threat to women's health. Messenger RNA (mRNA), microRNA (miRNA) and circular RNA (circRNA) play vital roles in the progression of breast cancer through a variety of biological effects and mechanisms. Recently, the regulatory network formed by circRNAs, miRNAs and mRNAs has piqued attention and garnered interest. CircRNAs bind to miRNAs through a regulatory mechanism in which endogenous RNAs compete to indirectly regulate the expression of mRNA corresponding to downstream target genes of miRNAs, contributing to the progression of breast cancer. The circRNA-miRNA-mRNA axis may be a marker for the early diagnosis and prognosis of breast cancer and a potential breast cancer treatment target, providing unlimited possibilities for the development of breast cancer biomarkers and therapeutic strategies. This article reviews recent research progress on the circRNA-miRNA-mRNA axis as a regulatory network of competing endogenous RNAs in breast cancer. Herein, we focus on the mechanism and function of the circRNA-miRNA-mRNA axis in the occurrence and metastasis of breast cancer, and resistance to chemotherapy.
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Affiliation(s)
- Meilan Zhang
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
| | - Xue Bai
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
| | - Xuemei Zeng
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
| | - Jiangrong Liu
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
| | - Feng Liu
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
| | - Zhiwei Zhang
- Cancer Research Institute of Hengyang Medical College, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hunan, Hengyang 421001, China
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