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Li B, Li J, Wang L, Wei Y, Luo X, Guan J, Zhang X. Yak-Derived CXCL14 Activates the Pro-Inflammatory Response of Macrophages and Inhibits the Proliferation and Migration of HepG2. Animals (Basel) 2023; 13:3036. [PMID: 37835641 PMCID: PMC10571970 DOI: 10.3390/ani13193036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/17/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
CXCL14 (C-X-C motif chemokine ligand 14) is an important chemokine involved in infection and immunity and plays an important role in a variety of immune-related diseases. The 446 bp cDNA sequence of the CXCL14 gene in yaks was obtained. Additionally, the prokaryotic expression vector of the CXCL14 protein with a molecular weight of 27 kDa was successfully constructed and expressed. The proliferation activities and migration abilities of spleen macrophages were significantly inhibited after treatment with the CXCL14 protein at different concentrations (1, 10 and 20 μg/mL) (p < 0.05). Furthermore, the expressions of pro-inflammatory cytokines interleukin 1 beta (IL-1β), interleukin 6 (IL6), interleukin 8 (IL8) and interferon-α (TNF-α) were significantly increased (p < 0.05), but the expression of anti-inflammatory factor interleukin 10 (IL10) was significantly decreased (p < 0.05). The contents of inflammatory factors in the supernatant of cells were detected using ELISA, and it was also found that the contents of TNF-α, IL6 and cytochrome c oxidase subunit II (COX2) were significantly increased under different CXCL14 protein concentrations (p < 0.05). Finally, the exogenous addition of CXCL14 inhibited the activity, clonal formation and migration of hepatoma cells (HepG2). Additionally, after HepG2 cells were treated with 20 μg/mL CXCL14 protein for 12 h, 24 h and 36 h, the expression levels of BCL2 homologous antagonist/killer (BAK) and the BCL2-associated X apoptosis regulator (BAX) were increased to varying degrees, while the expression levels of hypoxia-inducible factor 1 subunit alpha (HIF1A), the mechanistic target of rapamycin kinase (mTOR) and cyclin-dependent kinase 1 (CDK1) genes decreased compared to the control group. In conclusion, the CXCL14 protein can inhibit the proliferation and migration of HepG2 cells by inducing the expression of macrophage pro-inflammatory factors and activating apoptosis-related genes to exert innate immunity. These results are helpful to further study the function of the CXCL14 protein and provide research data for the innate immune mechanism of yaks under harsh plateau environments.
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Affiliation(s)
- Biao Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.L.); (J.L.)
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China
| | - Juan Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.L.); (J.L.)
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China
| | - Li Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.L.); (J.L.)
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China
| | - Yong Wei
- Sichuan Animal Sciences Academy, Chengdu 610041, China; (J.G.); (X.Z.)
| | - Xiaolin Luo
- Sichuan Academy of Grassland Sciences, Chengdu 611731, China;
| | - Jiuqiang Guan
- Sichuan Animal Sciences Academy, Chengdu 610041, China; (J.G.); (X.Z.)
| | - Xiangfei Zhang
- Sichuan Animal Sciences Academy, Chengdu 610041, China; (J.G.); (X.Z.)
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Zhang J, Chu G, Zheng L, Liu J, He J. Circular RNA circ_0000119 promotes cervical cancer cell growth and migration via miR-433-3p/PAK2 axis. J Appl Genet 2023; 64:531-543. [PMID: 37540462 DOI: 10.1007/s13353-023-00772-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 08/05/2023]
Abstract
The purpose of this study was to investigate the role of circ_0000119 on CC progression and its molecular mechanism. The expression levels of circ_0000119, miR-433-3p, and p21-activated kinase 2 (PAK2) in CC tissues and cell lines were measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was assessed using 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) assay, 5-Ethynyl-2'-deoxyuridine (EdU) assay and colony formation assay. Cell cycle and apoptosis were assessed by flow cytometry. Cell migration and invasive ability were examined by Transwell assays. Downstream binding targets of circ_0000119 were predicted by online bioinformatics tools and confirmed by dual luciferase reporter gene assay, RNA immunoprecipitation (RIP) assay, and RNA pull-down assay. The role of circ_0000119/miR-433-3p/PAK2 axis in regulating the CC process was explored by rescue experiments. A xenograft model was constructed to further determine the effect of circ_0000119 on CC tumor growth in vivo. Immunohistochemistry (IHC) assay was conducted for Ki67 expression. Circ_0000119 was aberrantly upregulated in CC tissues and cell lines. Knockdown of circ_0000119 inhibited CC cell proliferation, cell cycle progress, migration, invasion, and promoted apoptosis of CC cells. MiR-433-3p was a binding target of circ_0000119, and PAK2 was a downstream gene of miR-433-3p. MiR-433-3p inhibition reversed the inhibitory effect of silencing circ_0000119 on CC progression. In addition, PAK2 overexpression reversed the effect of miR-433-3p on CC progression. PAK2 expression was regulated by circ_0000119 and miR-433-3p. Moreover, circ_0000119 knockdown reduced tumor growth of CC in vivo. Circ_0000119 was upregulated in CC, and circ_0000119 knockdown suppressed CC malignant development through the miR-433-3p/PAK2 axis.
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Affiliation(s)
- Junxiao Zhang
- Third Department of Gynecology, Northwest Women's and Children's Hospital, No. 1616, Yanxiang Road, Yanta District, Xi'an, 710061, People's Republic of China.
| | - Guanghua Chu
- Second Department of Gynecology, Northwest Women's and Children's Hospital, Xi'an , 710061, China
| | - Lihua Zheng
- Third Department of Gynecology, Northwest Women's and Children's Hospital, No. 1616, Yanxiang Road, Yanta District, Xi'an, 710061, People's Republic of China
| | - Juandi Liu
- Third Department of Gynecology, Northwest Women's and Children's Hospital, No. 1616, Yanxiang Road, Yanta District, Xi'an, 710061, People's Republic of China
| | - Juxian He
- Third Department of Gynecology, Northwest Women's and Children's Hospital, No. 1616, Yanxiang Road, Yanta District, Xi'an, 710061, People's Republic of China
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Wu L, Xiao H, Hong Y, Xie M, Yu Y, Jiang L. CircRNA Circ_0000118 Regulates Malignancy of Cervical Cancer Cells by Regulating miR-211-5p/miR-377-3p/AKT2 Axis. Biochem Genet 2023; 61:1625-1644. [PMID: 36719624 PMCID: PMC10371915 DOI: 10.1007/s10528-023-10332-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 01/06/2023] [Indexed: 02/01/2023]
Abstract
CircRNAs are implicated in the development of several cancers. Nevertheless, the involvement of circ_0000118 in the development of cervical cancer (CC) remains unclear. Circ_0000118 levels in tumor tissues and cells were examined by qRT-PCR. The function of circ_0000118 in regulating the malignancy of CC cells was investigated using functional assays, including CCK-8, colony formation, transwell, and tube formation experiments. The functional interaction between circ_0000118 and microRNAs were validated by dual-luciferase activity assay and RNA precipitation experiments. In vivo mouse model was employed to assess the effect of circ_0000118 in the tumorigenesis of CC cells. Circ_0000118 was overexpressed in CC cells and tissues. Loss-of-function experiments demonstrated that circ_0000118 knockdown impaired the proliferation and tumor sphere formation, as well as the angiogenic potential of CC cells. RNA interaction experiments confirmed that circ_0000118 sponged miR-211-5p and miR-377-3p. AKT2 was found to be a target gene negatively modulated by miR-211-5p and miR-377-3p. AKT2 overexpression rescued the inhibition of circ_0000118 downregulation on CC cells. Our study suggested that circ_0000118 functions as an oncogenic factor in progression of CC by maintaining AKT2 level through targeting miR-211-5p and miR-377-3p as a ceRNA (competitive endogenous RNA), which provides novel therapeutic target in the management of CC.
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Affiliation(s)
- Lilan Wu
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China
| | - Huiqin Xiao
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China
| | - Yaqin Hong
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China
| | - Meihua Xie
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China
| | - Yanxia Yu
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China
| | - Lijuan Jiang
- Department of Obstetrics and Gynecology, Chunan County Traditional Chinese Medicine Hospital, No.1 Xin'an West Road, Chun'an, Hangzhou, 311700, Zhejiang, China.
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Du J, Zhuo Y, Sun X, Nie M, Yang J, Luo X, Gu H. hsa_circ_0000285 sponging miR-582-3p promotes neuroblastoma progression by regulating the Wnt/β-catenin signaling pathway. Open Med (Wars) 2023; 18:20230726. [PMID: 37465351 PMCID: PMC10350891 DOI: 10.1515/med-2023-0726] [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: 03/22/2022] [Revised: 04/26/2023] [Accepted: 05/06/2023] [Indexed: 07/20/2023] Open
Abstract
Circular RNA has been reported to play a key role in neuroblastoma (NB); however, the role of circ_0000285 in NB remains unclear. The aim of this study was to elucidate the role of circ_0000285 in NB. We studied the expression patterns of miR-582-3p and circ_0000285 in NB tissues and cells using real-time quantitative polymerase chain reaction. The expression of proteins associated with apoptosis (Bax and Bcl-2) and the proteins associated with Wnt/β-catenin (Wnt, p-Gsk-3β, Gsk-3β, β-catenin, and C-myc) were quantified by western blotting. In vivo animal models were prepared for the functional verification of circ_0000285 on tumor growth. The potential binding of circ_0000285 to miR-582-3p was ascertained using dual-luciferase reporter and RNA-binding protein immunoprecipitation experiments. Noticeable upregulation of circ_0000285 expression was observed in NB tumor samples and cell lines. In vivo and in vitro experiments indicated that the absence of circ_0000285 repressed NB cell proliferation and migration, provoked apoptosis, and impaired the activity of Wnt/β-catenin signaling. miR-582-3p is targeted by circ_0000285 and is poorly expressed in NB cells. The additional repression of miR-582-3p in NB cells after circ_0000285 silencing largely recovered circ_0000285 silencing-suppressed NB cell proliferation and migration and enhanced apoptosis. The absence of miR-582-3p restored Wnt/β-catenin signaling activity impaired by the knockdown of circ_0000285. circ_0000285 functions as an miR-582-3p sponge to strengthen Wnt/β-catenin signaling activity, thus exacerbating NB development.
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Affiliation(s)
- Jun Du
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Yingquan Zhuo
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Xu Sun
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Meilan Nie
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Jiafei Yang
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Xi Luo
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Huajian Gu
- Department of Pediatric Surgery, The Affiliated Hospital of Guizhou Medical University, No. 16
Beijing Road, Yunyan District, Guiyang, Guizhou 550004, China
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Gilyazova I, Ivanova E, Izmailov A, Sharifgaliev I, Karunas A, Pudova E, Kobelyatskaya A, Gilyazova G, Izmailova A, Pavlov V, Khusnutdinova E. MicroRNA Expression Signatures in Clear Cell Renal Cell Carcinoma: High-Throughput Searching for Key miRNA Markers in Patients from the Volga-Ural Region of Eurasian Continent. Int J Mol Sci 2023; 24:ijms24086909. [PMID: 37108073 PMCID: PMC10139074 DOI: 10.3390/ijms24086909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is characterized by high molecular genetic heterogeneity, metastatic activity and unfavorable prognosis. MicroRNAs (miRNA) are 22-nucleotide noncoding RNAs that are aberrantly expressed in cancer cells and have gained serious consideration as non-invasive cancer biomarkers. We investigated possible differential miRNA signatures that may differentiate high-grade ccRCC from primary disease stages. High-throughput miRNAs expression profiling, using TaqMan OpenArray Human MicroRNA panel, was performed in a group of 21 ccRCC patients. The obtained data was validated in 47 ccRCC patients. We identified nine dysregulated miRNAs (miRNA-210, -642, -18a, -483-5p, -455-3p, -487b, -582-3p, -199b and -200c) in tumor ccRCC tissue compared to normal renal parenchyma. Our results show that the combination of miRNA-210, miRNA-483-5p, miRNA-455 and miRNA-200c is able to distinguish low and high TNM ccRCC stages. Additionally, miRNA-18a, -210, -483-5p and -642 showed statistically significant differences between the low stage tumor ccRCC tissue and normal renal tissue. Contrariwise, the high stages of the tumor process were accompanied by alteration in the expression levels of miRNA-200c, -455-3p and -582-3p. Although the biological roles of these miRNAs in ccRCC are not totally clear, our findings need additional investigations into their involvement in the pathogenesis of ccRCC. Prospective studies with large study cohorts of ccRCC patients are important to further establish the clinical validity of our miRNA markers to predict ccRCC.
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Affiliation(s)
- Irina Gilyazova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
- Institute of Urology and Clinical Oncology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Elizaveta Ivanova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Adel Izmailov
- Republican Clinical Oncological Dispensary, 450054 Ufa, Russia
| | | | - Alexandra Karunas
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Elena Pudova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | - Gulshat Gilyazova
- Institute of Urology and Clinical Oncology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Angelina Izmailova
- Institute of Urology and Clinical Oncology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Valentin Pavlov
- Institute of Urology and Clinical Oncology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Elza Khusnutdinova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
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Wang J, Chen X, Zheng L, Ding C, Ma X. Circ_0042986 Presence Restrains Cervical Cancer Development via Upregulating PEG3 by Directly Targeting miR-582-3p. Reprod Sci 2023; 30:890-902. [PMID: 36018460 DOI: 10.1007/s43032-022-01053-3] [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: 02/21/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
The participation of circular RNAs (circRNAs) in carcinogenesis is widely established. Numerous circRNAs with aberrant expression in cervical cancer (CC) are identified by RNA sequencing, whereas the function of these circRNAs remains unclear. We thus aimed to unveil the effects and mechanisms of circ_0042986 in CC. Circ_0042986 with aberrant downregulation in CC was obtained from GSE10286 dataset. qPCR and western blotting were employed for the detection of circ_0042986, miR-582-3p, and paternally expressed 3 (PEG3) expressions. EdU assay, colony formation assay, wound healing assay, transwell assay, tube formation assay, and flow cytometry assay were applied for functional analyses. The potential binding site was ensured by dual-luciferase reporter analysis, and their binding relationship was verified by pull-down assay. The transplanted tumor models were constructed for in vivo function verification of circ_0042986. Our findings exposed that the downregulation of circ_0042986 was verified in clinical CC samples. Circ_0042986 overexpression largely attenuated CC cell growth, invasiveness, angiogenesis, and survival. MiR-582-3p was targeted by circ_0042986, and the inhibitory roles of circ_0042986 presence were partly abolished by miR-582-3p enrichment. MiR-582-3p combined with PEG3, and circ_0042986 increased PEG3 expression via decoying miR-582-3p. The interaction between miR-582-3p and PEG3 on CC cell functions was confirmed, evidenced by the reversal effects of PEG3 knockdown on miR-582-3p deficiency-inhibited cancer cell malignant behaviors. Circ_0042986 overexpression also limited tumorigenesis of CC in animal models. In summary, circ_0042986 overexpression decoyed miR-582-3p to increase PEG3 expression, thereby blocking the malignant progression of CC.
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Affiliation(s)
- Jun Wang
- Department of Gynecology and Obstetrics, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Xi Men Avenue 150#, Lin Hai, 317000, Zhejiang, People's Republic of China
| | - Xing Chen
- Department of Gynecology and Obstetrics, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Xi Men Avenue 150#, Lin Hai, 317000, Zhejiang, People's Republic of China
| | - Lingzhi Zheng
- Department of Gynecology and Obstetrics, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Xi Men Avenue 150#, Lin Hai, 317000, Zhejiang, People's Republic of China
| | - Chenjing Ding
- Department of Gynecology and Obstetrics, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Xi Men Avenue 150#, Lin Hai, 317000, Zhejiang, People's Republic of China
| | - Xuejuan Ma
- Department of Gynecology and Obstetrics, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Xi Men Avenue 150#, Lin Hai, 317000, Zhejiang, People's Republic of China.
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Avila JP, Carvalho BM, Coimbra EC. A Comprehensive View of the Cancer-Immunity Cycle (CIC) in HPV-Mediated Cervical Cancer and Prospects for Emerging Therapeutic Opportunities. Cancers (Basel) 2023; 15:cancers15041333. [PMID: 36831674 PMCID: PMC9954575 DOI: 10.3390/cancers15041333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Cervical cancer (CC) is the fourth most common cancer in women worldwide, with more than 500,000 new cases each year and a mortality rate of around 55%. Over 80% of these deaths occur in developing countries. The most important risk factor for CC is persistent infection by a sexually transmitted virus, the human papillomavirus (HPV). Conventional treatments to eradicate this type of cancer are accompanied by high rates of resistance and a large number of side effects. Hence, it is crucial to devise novel effective therapeutic strategies. In recent years, an increasing number of studies have aimed to develop immunotherapeutic methods for treating cancer. However, these strategies have not proven to be effective enough to combat CC. This means there is a need to investigate immune molecular targets. An adaptive immune response against cancer has been described in seven key stages or steps defined as the cancer-immunity cycle (CIC). The CIC begins with the release of antigens by tumor cells and ends with their destruction by cytotoxic T-cells. In this paper, we discuss several molecular alterations found in each stage of the CIC of CC. In addition, we analyze the evidence discovered, the molecular mechanisms and their relationship with variables such as histological subtype and HPV infection, as well as their potential impact for adopting novel immunotherapeutic approaches.
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Luo H, Zhu Y, Wang J, Wang Y, Wei L. Comprehensive profile and contrastive analysis of circular RNA expression in cervical squamous carcinoma and adenocarcinoma. PeerJ 2023; 11:e14759. [PMID: 36721776 PMCID: PMC9884480 DOI: 10.7717/peerj.14759] [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: 09/22/2022] [Accepted: 12/27/2022] [Indexed: 01/27/2023] Open
Abstract
Background Numerous studies have shown circular RNA (circRNA) dysregulation is associated with the pathogenesis of cervical cancer,particularly in individual carcinoma variants. The aim of this study is to investigate and contrastively analyze the expression pattern of circRNAs in cervical squamous carcinoma and adenocarcinoma mediated by human papillomavirus type 16 (HPV-16). Methods The expression of circRNAs in cervical squamous carcinoma (SCC), adenocarcinoma (ADC) and adenosquamous carcinoma (ASC) tissues, together with the adjacent normal tissues (ANT), was profiled by high-throughput RNA sequencing (RNA-seq). Bioinformatics analysis and quantitative real time polymerase chain reaction (qRT-PCR) validation of the sequencing data were performed. A network of circRNA-miRNA (microRNA)-mRNA was then constructed according to predicted targets and function of candidate circRNAs. Results A total of 11,685 annotated circRNAs were identified in six cervical samples. There were 42 up-regulated and 98 down-regulated circRNAs. 215 circRNAs were up-regulated in SCC but down-regulated circRNAs in ADC, while 50 circRNAs displayed the opposite trend. Function enrichment analysis based on different expressions of circRNAs found that the most enriched pathway in all the three pathologic variants of cervical cancer was the "ubiquitin mediated proteolysis" pathway. Eight key candidate circRNAs derived from this pathway were further validated, and we noticed that several target miRNAs of candidate circRNAs could target the source genes. Based on this we constructed a related competing endogenous RNA (ceRNA) network. Conclusion Through a comprehensive interpretation of differentially expressed circRNAs in different pathologic variants of cervical cancer, this study provides new insights into the process of tumor differentiation mediated by HPV. Our results may help to complement the molecular typing and stem cell theory of cervical cancer.
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Affiliation(s)
- Hongxue Luo
- Department of Gynecology and Obstetrics, Peking University People’Hospital, Peking University, Beijing, China
| | - Yi Zhu
- Department of Gynecology and Obstetrics, Peking University People’Hospital, Peking University, Beijing, China
| | - Jiaqi Wang
- Department of Gynecology and Obstetrics, Peking University People’Hospital, Peking University, Beijing, China
| | - Yue Wang
- Department of Gynecology and Obstetrics, Peking University People’Hospital, Peking University, Beijing, China
| | - Lihui Wei
- Department of Gynecology and Obstetrics, Peking University People’Hospital, Peking University, Beijing, China
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Wang H, Ren H. Circular RNA SMARCA5 Modulates Epithelial-Mesenchymal Transformation, Proliferation, and Metastasis of Nasopharyngeal Carcinoma Cells via microRNA-582-3p/Phosphatase and Tensin Homolog Axis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:5177471. [PMID: 36686977 PMCID: PMC9859696 DOI: 10.1155/2023/5177471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/07/2022] [Accepted: 08/10/2022] [Indexed: 01/15/2023]
Abstract
The action mechanism in which circular RNA (circ) SMARCA5 targeted nasopharyngeal carcinoma (NPC) cell proliferation, migration, invasion, and apoptosis via microRNA (miR)-582-3p/phosphatase and tensin homolog (PTEN) axis was explored. The examination was performed via reverse transcription-quantitative polymerase chain reaction (RT-qPCR), discovering that circSMARCA5 was elevated while miR-582-3p was silenced in NPC tissues and cells. E-cadherin and N-cadherin were detected. The results illustrated transfection with si-circSMARCA5 or miR-582-3p-mimic was available to repress cancer cell advancement, and E-cadherin was augmented. Transfection with pcDNA 3.1-circSMARCA5 or miR-582-3p-inhibitor was available to accelerate cancer cell advancement, and N-cadherin was augmented. MiR-582-3p-inhibitor blocked the suppression of si-circSMARCA5 on NPC. The si-PTEN blocked the malignant behavior of pcDNA 3.1-circSMARCA5 against NPC. The binding sites between circSMARCA5 and miR-582-3p and between miR-582-3p and PTEN were verified. Linear analysis results illuminated the expression pattern of circSMARCA5 was opposite to miR-582-3p, while the expression pattern of circSMARCA5 was positively associated with PTEN. In brief, the results of the research clarified circSMARCA5 modulated NPC cells' vital movement via the miR-582-3p/PTEN molecular axis.
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Affiliation(s)
- Hui Wang
- Department of Otorhinolaryngology, Tianjin Hospital, Tianjin 300000, China
| | - HaiTang Ren
- Department of Otorhinolaryngology, Tianjin Hospital, Tianjin 300000, China
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Identification of Circular RNA Circ_0003256 as a Novel Player in Pediatric Acute Myeloid Leukemia. J Pediatr Hematol Oncol 2023; 45:29-37. [PMID: 36598961 DOI: 10.1097/mph.0000000000002372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/26/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Aberrant expression of circular RNAs (circRNAs) is tightly associated with the pathogenesis of human cancers, including pediatric acute myeloid leukemia (AML). In this report, we sought to define the precise action of circ_0003256 in the pathogenesis of pediatric AML. MATERIALS AND METHODS Circ_0003256, microRNA (miR)-582-3p, and protein kinase cAMP-activated catalytic subunit beta (PRKACB) were quantified by quantitative real-time polymerase chain reaction and Western blot. Cell proliferation, cycle distribution, and apoptosis were estimated by MTT, 5-ethynyl-2'-deoxyuridine, and flow cytometry assays, respectively. Direct relationships among circ_0003256, miR-582-3p, and PRKACB were verified by a dual-luciferase reporter and RNA pull-down assays. RESULTS Our data indicated that circ_0003256 was highly expressed in pediatric AML patients and cells. Suppression of circ_0003256 hindered cell proliferation and promoted apoptosis in THP-1 and MV4-11 cells. Mechanistically, circ_0003256 contained functional binding sites for miR-582-3p, and circ_0003256 suppression influenced cell behaviors by upregulating miR-582-3p. MiR-582-3p directly targeted and inhibited PRKACB and the inhibition of PRKACB phenocopied miR-582-3p overexpression in regulating cell functional behaviors. Moreover, circ_0003256 involved the posttranscriptional regulation of PRKACB through miR-582-3p. CONCLUSION Our findings identify that suppression of circ_0003256 impedes the malignant behaviors of pediatric AML cells by regulating PRKACB expression by competing for shared miR-582-3p.
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Yang M, Hu H, Wu S, Ding J, Yin B, Huang B, Li F, Guo X, Han L. EIF4A3-regulated circ_0087429 can reverse EMT and inhibit the progression of cervical cancer via miR-5003-3p-dependent upregulation of OGN expression. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:165. [PMID: 35513835 PMCID: PMC9069757 DOI: 10.1186/s13046-022-02368-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 04/19/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) are noncoding RNAs with stable structures with high expression and tissue-specific expression. Studies have shown that circRNA dysregulation is closely related to the progression of tumours. However, the function and regulatory mechanism of most circRNAs in cervical cancer are still unclear. METHODS: CircRNAs related to cervical cancer were screened through the Gene Expression Omnibus (GEO) database. qRT-PCR was used to verify the expression of circ_0087429 in cervical cancer tissues and cells. Then, in vivo and in vitro experiments were conducted to evaluate the role of circ_0087429 in the progression of cervical cancer. The role of the circ_0087429/miR-5003-3p/osteoglycin (OGN) axis in the epithelial to mesenchymal transition (EMT) was confirmed by rescue experiments, fluorescence in situ hybridization, luciferase reporter assays, immunofluorescence staining and western blotting. The inhibitory effect of Eukaryotic initiation factor 4A-III (EIF4A3) on the biogenesis of circ_0087429 was verified by RNA immunoprecipitation (RIP) assays and qRT-PCR. RESULTS circ_0087429 is significantly downregulated in cervical cancer tissues and cells and negatively correlated with International Federation of Gynecology and Obstetrics (FIGO) staging and lymphatic metastasis in cervical cancer patients. circ_0087429 can significantly inhibit the proliferation, migration, invasion and angiogenesis of cervical cancer in vitro and tumour growth and metastasis in vivo. OGN is significantly downregulated in cervical cancer tissues and cells. circ_0087429 can upregulate the expression of OGN by competitively binding with miR-5003-3p, thereby reversing EMT and inhibiting the progression of cervical cancer. EIF4A3 can inhibit circ_0087429 expression by binding to its flanking regions. CONCLUSIONS As a tumour suppressor, circ_0087429 regulated by EIF4A3 can reverse EMT and inhibit the progression of cervical cancer through the miR-5003-3p/OGN axis. It is expected to become a potential target for the treatment of cervical cancer.
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Affiliation(s)
- Meiqin Yang
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Haoran Hu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Jianyi Ding
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Bo Yin
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Baoyou Huang
- Department of Gynecology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Fang Li
- Department of Gynecology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China.
| | - Xiaoqing Guo
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.
| | - Lingfei Han
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.
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12
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Najafi S. Circular RNAs as emerging players in cervical cancer tumorigenesis; A review to roles and biomarker potentials. Int J Biol Macromol 2022; 206:939-953. [PMID: 35318084 DOI: 10.1016/j.ijbiomac.2022.03.103] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/08/2022] [Accepted: 03/16/2022] [Indexed: 01/10/2023]
Abstract
Cervical cancer is the most lethal gynecological cancer among women worldwide. Most of the patients are diagnosed at the advanced stages due to late diagnosis and lack of accessible and valuable approaches for early detection of the disease. Circular RNAs (circRNAs) are a distinguishable class of non-coding RNAs with characteristic loop structures. Although their function has not been completely elucidated; however, recent evidence has suggested regulatory functions for circRNAs on gene expression controlling various biological functions like cell growth and apoptosis, development, embryogenesis, and pathogenesis of human diseases particularly cancers. Studies show the role of dysregulated circRNAs in biological processes including cell proliferation, migration, invasion, apoptosis, angiogenesis, and chemoresistance contributing to affect tumorigenesis in ovarian cancer cells, animal, and clinical studies. These effects can be defined as consistent with several tumorigenesis characteristics, which are defined as "hallmarks of cancer". Additionally, dysregulated circRNAs exhibit prognostic, and diagnostic potentials both in the prediction of prognosis in ovarian cancer patients, and also their discrimination from healthy individuals. Furthermore, targeting circRNAs has shown positive results in the suppression of malignant features of cancer cells, and also in overcoming chemoresistance. In this review, I have gathered the majority of studies evaluating the role of circRNAs in the development, and progression of cervical cancer, and also have discussed prognostic, diagnostic, and therapeutic potentials of circRNAs for clinical applications in cervical cancer patients.
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Affiliation(s)
- Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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13
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Zhang Y, Zhang X, Xu Y, Fang S, Ji Y, Lu L, Xu W, Qian H, Liang ZF. Circular RNA and Its Roles in the Occurrence, Development, Diagnosis of Cancer. Front Oncol 2022; 12:845703. [PMID: 35463362 PMCID: PMC9021756 DOI: 10.3389/fonc.2022.845703] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/14/2022] [Indexed: 12/19/2022] Open
Abstract
Circular RNAs (circRNAs) are non-coding single-stranded covalently closed circular RNA, mainly produced by reverse splicing of exons of precursor mRNAs (pre-mRNAs). The characteristics of high abundance, strong specificity, and good stability of circRNAs have been discovered. A large number of studies have reported its various functions and mechanisms in biological events, such as the occurrence and development of cancer. In this review, we focus on the classification, characterization, biogenesis, functions of circRNAs, and the latest advances in cancer research. The development of circRNAs as biomarkers in cancer diagnosis and treatment also provides new ideas for studying circRNAs research.
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Affiliation(s)
- Yue Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yumeng Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shikun Fang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ying Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ling Lu
- Child Healthcare Department, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhao Feng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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14
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He C, Liu L. Hsa_circ_0072008 regulates cell proliferation, migration, and invasion in cervical squamous cell carcinoma via miR-1305/helicase, lymphoid specific (HELLS) axis. Bioengineered 2022; 13:8311-8322. [PMID: 35311456 PMCID: PMC9161871 DOI: 10.1080/21655979.2022.2048945] [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: 11/21/2022] Open
Abstract
Cervical squamous cell carcinoma (CESC) is one of the most common cancers in women. Recent studies have proved that circular RNAs (circRNAs) could regulate the progress of CESC, but the mechanism is still indistinct. In this work, we explored the roles of circ_0072008 in CESC. The expression levels of circ_0072008, microRNA-1305 (miR-1305) and mRNA of HELLS (helicase, lymphoid specific) were detected by quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) in CESC tissues. Meanwhile, the level of HELLS was quantified by western blot analysis. Besides, the cell functions were examined by colony formation assay, 5-Ethynyl-2’-deoxyuridine (EdU) assay, wound healing assay, flow cytometry assay and western blot. Furthermore, the interaction between miR-1305 and circ_0072008 or HELLS was detected by dual-luciferase reporter assay. The function of circ_0072008 in CESC has also been further verified in vivo by xenograft model experiments. The levels of circ_0072008 and HELLS were upregulated, and the miR-1305 level was decreased in CESC tissues in contrast to that in normal tissues. For functional analysis, silencing circ_0072008 inhibited cell proliferation and cell migration, whereas enhanced cell apoptosis in CESC cells. In mechanism, circ_0072008 acted as a miR-1305 sponge to regulate the level of HELLS. Moreover, miR-1305 was confirmed to repress the progression of CESC cells by suppressing HELLS. Meanwhile, knockdown of circ_0072008 inhibited CESC cells growth in vivo. In conclusion, circ_0072008 facilitated CESC cell proliferation, migration, and invasion through increasing HELLS expression by regulating miR-1305, which also offered an underlying targeted therapy for CESC treatment.
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Affiliation(s)
- Chunhua He
- Department of Gynecology, Jingmen NO. 1 People's Hospital, Jingmen, Hubei, China
| | - Leng Liu
- Department of Gynecology, Jingmen NO. 1 People's Hospital, Jingmen, Hubei, China
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15
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Circ-PKD2 promotes Atg13-mediated autophagy by inhibiting miR-646 to increase the sensitivity of cisplatin in oral squamous cell carcinomas. Cell Death Dis 2022; 13:192. [PMID: 35220397 PMCID: PMC8882170 DOI: 10.1038/s41419-021-04497-8] [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: 06/25/2021] [Revised: 11/03/2021] [Accepted: 12/20/2021] [Indexed: 12/16/2022]
Abstract
Autophagy is an evolutionally conserved catabolic process that degrades cells to maintain homeostasis. Cisplatin-activated autophagy promotes the expression of circ-PKD2, which plays a role as a tumor suppressor gene in the proliferation, migration, and invasion in oral squamous cell carcinoma (OSCC). However, the role of circ-PKD2 in regulating the sensitivity of OSCC patients to cisplatin remains to be elucidated. Overexpression of circ-PKD2 increased the formation of autophagosomes in OSCC cells and activation of proteins, such as LC3 II/I. Its activation effect on autophagy was, however, alleviated by 3-MA. Bioinformatics analyses and double luciferases reporter assays conducted in this study confirmed the existence of targeted relationships between circ-PKD2 and miR-646 and miR-646 and Atg13. Functional experiments further revealed that miR-646 reversed the autophagy and apoptosis effects of circ-PKD2 in OSCC cells treated with cisplatin. In addition, circ-PKD2 promoted the expression of ATG13 by adsorption of miR-646. Its interference with Atg13 alleviated the activation effects of circ-PKD2 on autophagy and apoptosis of miR-646. Notably, the in vivo animal experiments also confirmed that circ-PKD2 inhibited tumor proliferation and activated autophagy in OSCC cells. This study provides a theoretical basis for using circ-PKD2 as a target to regulate the sensitivity of OSCC patients to cisplatin, thus increasing its chemotherapeutic effects.
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16
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Dai T, Liang J, Liu W, Zou Y, Niu F, Li M, Zhang H, Li C, Fan M, Cui G. The miRNA mir-582-3p suppresses ovarian cancer progression by targeting AKT/MTOR signaling via lncRNA TUG1. Bioengineered 2021; 12:10771-10781. [PMID: 34793263 PMCID: PMC8810093 DOI: 10.1080/21655979.2021.2003662] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Ovarian cancer (OC) is one of the most common malignancies of the female reproductive system. The miRNA miR-582-3p is associated with a variety of tumors, and the aim of this study was to investigate the role and mechanisms of miR-582-3p specifically in ovarian carcinogenesis and progression. Low expression of miR-582-3p was noted in OC tissue and cell lines, and lower expression of miR-582-3p correlated with lower overall survival in OC patients. Knockdown of miR-582-3p promoted the proliferation and migration of OC cells, while overexpression inhibited them. TUG1, a long non-coding RNA, was found to bind to miR-582-3p, and inhibition of lncRNA TUG1 decreased viability and migration and weakened the effect of miR-582-3p knockdown in OC cells. Implantation of OC cells with reduced miR-582-3p caused increased tumor growth, while lncRNA TUG1 knockdown suppressed tumor growth and relieved the impact of reduced miR-582-3p in vivo. Phosphorylation of AKT and mTOR were significantly enhanced with decreased miR-582-3p expression, but lncRNA TUG1 knockdown attenuated this trend in vitro and in vivo. The novel miR-582-3p represses the malignant properties of OC via the AKT/mTOR signaling pathway by targeting lncRNA TUG1. This axis may represent valuable prognostic biomarkers and therapeutic targets for OC.
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Affiliation(s)
- Tianyu Dai
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Junhui Liang
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Liu
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yonghui Zou
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Feifei Niu
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Mengqing Li
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Haomeng Zhang
- Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Changzhong Li
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Mingjun Fan
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Guoying Cui
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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17
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Ramos EI, Yang B, Vasquez YM, Lin KY, Choudhari R, Gadad SS. Characterization of the Testis-specific LINC01016 Gene Reveals Isoform-specific Roles in Controlling Biological Processes. J Endocr Soc 2021; 5:bvab153. [PMID: 34703959 PMCID: PMC8533999 DOI: 10.1210/jendso/bvab153] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 01/22/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) have emerged as critical regulators of biological processes. However, the aberrant expression of an isoform from the same lncRNA gene could lead to RNA with altered functions due to changes in their conformations, leading to diseases. Here, we describe a detailed characterization of the gene that encodes long intergenic non-protein-coding RNA 01016 (LINC01016, also known as LncRNA1195) with a focus on its structure, exon usage, and expression in human and macaque tissues. In this study we show that it is among the highly expressed lncRNAs in the testis, exclusively conserved among nonhuman primates, suggesting its recent evolution and is processed into 12 distinct RNAs in testis, cervix, and uterus tissues. Further, we integrate de novo annotation of expressed LINC01016 transcripts and isoform-dependent gene expression analyses to show that human LINC01016 is a multiexon gene, processed through differential exon usage with isoform-specific roles. Furthermore, in cervical, testicular, and uterine cancers, LINC01016 isoforms are differentially expressed, and their expression is predictive of survival in these cancers. This study has revealed an essential aspect of lncRNA biology, rarely associated with coding RNAs, that lncRNA genes are precisely processed to generate isoforms with distinct biological roles in specific tissues.
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Affiliation(s)
- Enrique I Ramos
- Center of Emphasis in Cancer, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas 79905, USA
| | - Barbara Yang
- Center of Emphasis in Cancer, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas 79905, USA
| | - Yasmin M Vasquez
- Department of Pathology, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Ken Y Lin
- Department of Obstetrics & Gynecology and Women's Health, Division of Gynecologic Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Ramesh Choudhari
- Center of Emphasis in Cancer, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas 79905, USA
| | - Shrikanth S Gadad
- Center of Emphasis in Cancer, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas 79905, USA.,Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, El Paso, Texas 79905, USA.,Mays Cancer Center, UT Health San Antonio MD Anderson Cancer Center, San Antonio, Texas 78229, USA
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18
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Wei Y, Yang X, Gao L, Yang J, Zheng L, Gao L, Zhou X, Xiang X, Zhang J, Yi C. Identification of potential immune-related circRNA-miRNA-mRNA regulatory network in cutaneous squamous cell carcinoma. Am J Cancer Res 2021; 11:4826-4843. [PMID: 34765295 PMCID: PMC8569358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023] Open
Abstract
Circulating RNAs (circRNAs) are involved in tumor development and progression by participating in immune regulation. Nevertheless, the circRNAs expression profiles and their roles on the immunomodulatory effects in cutaneous squamous cell carcinoma (cSCC) have rarely been studied. In our study, we identified the differentially expressed circRNAs (DEcircRNAs), miRNAs (DEmiRNAs), mRNAs (DEmRNAs) in cSCC and established the circRNA competing endogenous RNAs (ceRNAs) network. Subsequently, the hub differentially expressed immune-related genes were identified and validated by immunochemistry as well as the GO and KEGG pathway analysis were performed. 54 differentially expressed circRNAs were identified and hub differentially expressed immune-related genes were identified and they were mostly associated with immune response in the progression of cSCC. Our results indicated that the potential immune-related circRNA-miRNA-mRNA network may assist in understanding the molecular mechanisms underlying the carcinogenesis and progression in cSCC. Moreover, the immune-related genes may provide an insight into the pathogenesis, molecular biomarkers, and potential therapeutic targets for cSCC patients.
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Affiliation(s)
- Yuanfeng Wei
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Xi Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Limin Gao
- Department of Pathology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Ju Yang
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Lingnan Zheng
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Ling Gao
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Xiaohan Zhou
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Xiaoyu Xiang
- Department of Pathology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Jie Zhang
- Lab of Experimental Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation CenterChengdu 610041, Sichuan, China
| | - Cheng Yi
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
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Jin Y, Zhang Y, Luo X. circRNA_PTPRA functions as a sponge of miR-582-3p to regulate hepatocellular carcinoma cell proliferation, migration, invasion and apoptosis. Exp Ther Med 2021; 22:1276. [PMID: 34594413 PMCID: PMC8456459 DOI: 10.3892/etm.2021.10711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/17/2021] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a lethal disease and one of the most common types of cancer. HCC is associated with exponentially increasing morbidity and mortality rates. Accumulating evidence has identified circular RNAs (circRNAs) to be regulators of cancer progression. However, to the best of our knowledge, the potential effect of circRNA protein tyrosine phosphatase receptor type A (circRNA_PTPRA) in HCC and its mechanism remain unknown. The present study aimed to assess the effects and underlying mechanism of circRNA_PTPRA in a HCC Huh-7 cells model. The sites of interaction between circRNA_PTPRA and microRNA (miR)-582-3p were predicted using the StarBase software and verified using dual luciferase reporter and RNA immunoprecipitation (RIP) assays in Huh-7 cells. HCC cell viability, apoptosis, migration and invasion were measured using MTT, flow cytometry and Transwell assays, respectively. The expression levels of circRNA_PTPRA, miR-582-3p, cyclin D1, MMP-9, Bcl-2 and Bax were analyzed using reverse transcription-quantitative PCR and western blotting. The results of the dual luciferase reporter and RIP assays demonstrated that miR-582-3p directly targeted circRNA_PTPRA. Compared with the human normal hepatocyte cell line, THLE-2, the expression levels of circRNA_PTPRA were upregulated, which were found to be inversely correlated with those of miR-582-3p expression in Huh-7 and HCCLM3 cells. miR-582-3p overexpression using mimics suppressed cell proliferation, migration and invasion, whilst downregulating cyclin D1 and MMP-9 expression in Huh-7 cells. In addition, transfection of HCC cells with the miR-582-3p mimic promoted apoptosis by downregulating Bcl-2 expression and upregulating Bax expression in Huh-7 cells. Knocking down circRNA_PTPRA expression using small interfering RNA (siRNA) markedly downregulated circRNA_PTPRA expression levels and upregulated miR-582-3p expression, but was reversed by co-transfection with the miR-582-3p inhibitor. Furthermore, reduced HCC cell proliferation, migration and invasion, increased levels of cell apoptosis, upregulated Bax expression and downregulated cyclin D1, MMP-9 and Bcl-2 expression were all observed after knocking down circRNA_PTPRA. All these effects aforementioned were reversed by co-transfection with the miR-582-3p inhibitor. In conclusion, findings from the present study suggested that circRNA_PTPRA may regulate HCC cell proliferation, invasion, apoptosis and migration by sponging miR-582-3p. This indicates that the circRNA_PTPRA/miR-582-3p axis may represent a potential target for HCC diagnosis and treatment.
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Affiliation(s)
- Yanlin Jin
- First Ward of General Surgery, Railway Hospital, Shaoguan, Guangdong 512000, P.R. China
| | - Yi Zhang
- Public Health Guidance Section, Hongshan Centre for Diseases Control and Prevention, Wuhan, Hubei 430070, P.R. China
| | - Xiaoming Luo
- Department of Hepatobiliary Gastrointestinal Surgery, Hubei No. 3 People's Hospital of Jianghan University, Wuhan, Hubei 430033, P.R. China
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20
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Wang F, Zhang Y, Zhou X, Chen X, Xiang J, Fan M, Yu Y, Cai Y, Wu H, Huang S, He N, Hu Z, Ding G, Jin X. Circular RNA CircPPP1CB Suppresses Tumorigenesis by Interacting With the MiR-1307-3p/SMG1 Axis in Human Bladder Cancer. Front Cell Dev Biol 2021; 9:704683. [PMID: 34595165 PMCID: PMC8476764 DOI: 10.3389/fcell.2021.704683] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/16/2021] [Indexed: 12/23/2022] Open
Abstract
Circular RNA (circRNA) is a newly discovered endogenous non-coding RNA (ncRNA), which is characterized with a closed circular structure. A growing body of evidence has verified the vital roles of circRNAs in human cancer. In this research, we selected circPPP1CB as a study object by circRNA sequencing and quantitative real-time PCR (qRT-PCR) validation in human bladder cancer (BC). CircPPP1CB is downregulated in BC and is negatively correlated with clinical stages and histological grades. Functionally, circPPP1CB modulated cell growth, metastasis, and epithelial-to-mesenchymal transition (EMT) process in vitro and in vivo. Mechanically, we performed various experiments to verify the circPPP1CB/miR-1307-3p/SMG1 regulatory axis. Taken together, our results demonstrated that circPPP1CB participates in tumor growth, metastasis, and EMT process by interacting with the miR-1307-3p/SMG1 axis, and that circPPP1CB might be a novel therapeutic target and diagnostic biomarker in human BC.
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Affiliation(s)
- Feifan Wang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Zhang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xuejian Zhou
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xianwu Chen
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiayong Xiang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Mengjing Fan
- Department of Pathology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yanlan Yu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yueshu Cai
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongshen Wu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shihan Huang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ning He
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhenghui Hu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guoqing Ding
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaodong Jin
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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21
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Tao M, Zheng M, Xu Y, Ma S, Zhang W, Ju S. CircRNAs and their regulatory roles in cancers. Mol Med 2021; 27:94. [PMID: 34445958 PMCID: PMC8393742 DOI: 10.1186/s10020-021-00359-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/18/2021] [Indexed: 01/17/2023] Open
Abstract
Circular RNAs (circRNAs), a novel type of non-coding RNAs (ncRNAs), have a covalently closed circular structure resulting from pre-mRNA back splicing via spliceosome and ribozymes. They can be classified differently in accordance with different criteria. As circRNAs are abundant, conserved, and stable, they can be used as diagnostic markers in various diseases and targets to develop new therapies. There are various functions of circRNAs, including sponge for miR/proteins, role of scaffolds, templates for translation, and regulators of mRNA translation and stability. Without m7G cap and poly-A tail, circRNAs can still be degraded in several ways, including RNase L, Ago-dependent, and Ago-independent degradation. Increasing evidence indicates that circRNAs can be modified by N-6 methylation (m6A) in many aspects such as biogenesis, nuclear export, translation, and degradation. In addition, they have been proved to play a regulatory role in the progression of various cancers. Recently, methods of detecting circRNAs with high sensitivity and specificity have also been reported. This review presents a detailed overview of circRNAs regarding biogenesis, biomarker, functions, degradation, and dynamic modification as well as their regulatory roles in various cancers. It’s particularly summarized in detail in the biogenesis of circRNAs, regulation of circRNAs by m6A modification and mechanisms by which circRNAs affect tumor progression respectively. Moreover, existing circRNA detection methods and their characteristics are also mentioned.
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Affiliation(s)
- Mei Tao
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Ming Zheng
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Yanhua Xu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Shuo Ma
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Weiwei Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China. .,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.
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Xiao E, Zhang D, Zhan W, Yin H, Ma L, Wei J, Kang Y, Mao Z. circNFIX facilitates hepatocellular carcinoma progression by targeting miR-3064-5p/HMGA2 to enhance glutaminolysis. Am J Transl Res 2021; 13:8697-8710. [PMID: 34539988 PMCID: PMC8430108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/14/2021] [Indexed: 06/13/2023]
Abstract
Hepatocellular carcinoma (HCC) is acknowledged to be a fatal malignant cancer around the world. Circular RNAs (circRNAs) function as crucial regulators in the pathological procession of HCC. Here, we elucidated the biological function of a novel circRNA, circNFIX, in HCC tumorigenesis. qRT-PCR was performed to determine the expressions of circNFIX, miR-3064-5p, and HMGA2. circNFIX stability was evaluated after treatment with ribonuclease R. The growth and invasion of HCC cells were assessed by CCK8 and transwell assays. Protein levels were measured by Western blotting. The levels of glutaminolysis metabolites were evaluated by commercial kits. Dual-luciferase report assay, RNA immunoprecipitation (RIP) assay and RNA pull-down assay were performed for validating the interaction between miR-3064-5p and circNFIX/HMGA2. Tumor growth in vivo was detected using xenograft assay. Our results showed that circNFIX was remarkably up-regulated in HCC and was associated with a poor survival. Knockdown of circNFIX repressed proliferation, invasion and glutaminolysis of HCC cells. Moreover, circNFIX directly sponged miR-3064-5p to release HMGA2 expression, and thus conferred the malignant development of HCC. In conclusion, circNFIX serves as a competing endogenous RNA to accelerate HCC progression via regulating miR-3064-5p/HMGA2 axis, suggesting a therapeutic strategy for HCC intervention.
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Affiliation(s)
- Erhui Xiao
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Dongmei Zhang
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Weili Zhan
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Hui Yin
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Li Ma
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Junfeng Wei
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Yi Kang
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
| | - Zhongshan Mao
- Department of Infectious Diseases, He'nan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of He'nan University Zhengzhou, He'nan Province, China
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Xu J, Lu W. CircSPIDR acts as a tumour suppressor in cervical adenocarcinoma by sponging miR-431-5p and regulating SORCS1 and CUBN expression. Aging (Albany NY) 2021; 13:18340-18359. [PMID: 34326275 PMCID: PMC8351706 DOI: 10.18632/aging.203283] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/19/2021] [Indexed: 01/22/2023]
Abstract
To identify circular RNAs (circRNAs) with tumor suppressor activity against cervical adenocarcinoma, we compared the circRNA levels of cervical adenocarcinoma and normal cervical tissues. We found that circSPIDR was dramatically downregulated in cervical adenocarcinoma tissues. In cervical adenocarcinoma cells, overexpression of circSPIDR reduced cell viability, inhibited colony formation and promoted apoptosis, whereas knockdown of circSPIDR exerted the opposite effects. CircSPIDR overexpression also suppressed the tumorigenicity of cervical adenocarcinoma cells in a xenograft mouse model. CircSPIDR was found to sponge miR-431-5p, thereby de-repressing sortin-related VPS10 domain-containing receptor 1 (SORCS1) and cubilin (CUBN) and inhibiting the development of cervical adenocarcinoma. In clinical cervical samples, circSPIDR expression correlated negatively with miR-431-5p expression and positively with SORCS1 and CUBN expression. These results demonstrated that circSPIDR suppresses cervical adenocarcinoma by competitively binding to miR-431-5p, thus upregulating SORCS1 and CUBN. These findings suggest circSPIDR could serve as a novel therapeutic target for treatment of cervical adenocarcinoma patients.
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Affiliation(s)
- Junfen Xu
- Department of Gynecologic Oncology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, China
| | - Weiguo Lu
- Department of Gynecologic Oncology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, China
- Center of Uterine Cancer Diagnosis & Therapy of Zhejiang Province, Hangzhou 310006, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang, China
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Yang Y, Li Q, Zhang X, Cui G. CircPAG1 Inhibits the High Glucose-Induced Lens Epithelial Cell Injury by Sponging miR-630 and Upregulating EPHA2. Curr Eye Res 2021; 46:1822-1831. [PMID: 34011217 DOI: 10.1080/02713683.2021.1933058] [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] [Indexed: 10/21/2022]
Abstract
Background: Circular RNAs (circRNAs) have been considered as vital regulators in the progression of human ocular diseases, including diabetic cataract (DC). This report was designed to research the biological role of circRNA phosphoprotein associated with glycosphingolipid-enriched microdomains 1 (circPAG1) in high glucose (HG)-induced lens epithelial damages.Methods: Lens epithelial damage in DC was investigated by the effects of 25 mM glucose (HG) on human lens epithelial cells (HLE-B3). CircPAG1, microRNA-630 (miR-630), and ephrin type-A receptor 2 (EPHA2) levels were examined by the quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation analysis was performed by 3-(4, 5-dimethylthiazol-2-y1)-2, 5-diphenyl tetrazolium bromide (MTT) assay and colony formation assay. Cell apoptosis was measured through flow cytometry. Protein levels were detected using western blot. Oxidative stress was determined by malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GSH-PX) levels via the corresponding kits. Dual-luciferase reporter and RNA immunoprecipitation (RIP) and RNA pull-down assays were used for target binding analysis.Results: CircPAG1 expression was downregulated in lens samples of DC patients and HG-treated lens epithelial cells. HG inhibited cell growth but promoted apoptosis and oxidative stress in HLE-B3 cells, while circPAG1 overexpression relieved these damages. Moreover, circPAG1 was identified as a molecular sponge for miR-630. HG-induced cell injury was also attenuated by the inhibition of miR-630, and the function of circPAG1 was related to its sponge effect on miR-630. In addition, miR-630 directly targeted EPHA2 and circPAG1 could regulate the EPHA2 expression via sponging miR-630. Furthermore, we found that the protective role of circPAG1 against the HG-induced cell injury was ascribed to the upregulation of EPHA2.Conclusion: Our evidence suggested that circPAG1 alleviated cell damages in HG-treated human lens epithelial cells by regulating the miR-630/EPHA2 axis.
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Affiliation(s)
- Youyi Yang
- Department of Opthalmology, Enze Medical Center, Taizhou City, Zhejiang Province, China
| | - Qianqian Li
- Department of Opthalmology, Taizhou Central Hospital, Taizhou City, Zhejiang Province, China
| | - Xin Zhang
- Department of Opthalmology, Enze Medical Center, Taizhou City, Zhejiang Province, China
| | - Gangfeng Cui
- Department of Opthalmology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou City, Zhejiang Province, China
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