1
|
Liu H, Wu X, Wang D, Li Q, Zhang X, Xu L. Unveiling the role of miR-137-3p/ miR-296-5p/SERPINA3 signaling in colorectal cancer progression: integrative analysis of gene expression profiles and in vitro studies. BMC Med Genomics 2023; 16:327. [PMID: 38087342 PMCID: PMC10714458 DOI: 10.1186/s12920-023-01763-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a prevalent malignancy worldwide, with increasing incidence and mortality rates. Although treatment options have improved, CRC remains a leading cause of death due to metastasis. Early intervention can significantly improve patient outcomes, making it crucial to understand the molecular mechanisms underlying CRC metastasis. In this study, we performed bioinformatics analysis to identify potential genes associated with CRC metastasis. METHODS We downloaded and integrated gene expression datasets (GSE89393, GSE100243, and GSE144259) from GEO database. Differential expression analysis was conducted, followed by Gene Ontology (GO) functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. The hub gene SERPINA3 was selected for further in vitro functional studies. Additionally, the role of miR-137-3p/miR-296-5p/ Serpin family A member 3 (SERPINA3) in CRC cell function was investigated using in vitro assays. RESULTS Analysis of the gene expression datasets revealed differentially expressed genes (DEGs) associated with CRC metastasis. GO analysis showed enrichment in biological processes such as blood coagulation regulation and wound healing. Cellular component analysis highlighted extracellular matrix components and secretory granules. Molecular function analysis identified activities such as serine-type endopeptidase inhibition and lipoprotein receptor binding. KEGG analysis revealed involvement in pathways related to complement and coagulation cascades, cholesterol metabolism, and immune responses. The common DEGs among the datasets were further investigated. We identified SERPINA3 as a hub gene associated with CRC metastasis. SERPINA3 exerted enhanced effects on migration, proliferation and epithelial-mesenchymal transition (EMT) and inhibitory effects on caspase-3/-9 activities in HT29 and SW620 cells. MiR-137-3p overexpression increased activities of caspase-3/-9, decreased migration and proliferation, and also repressed EMT in HT29 cells, which were obviously attenuated by SERPINA3 enforced overexpression. Consistently, SERPINA3 enforced overexpression also largely reversed miR-296-5p mimics-induced increased in activities of caspase-3/-9, decrease in migration, proliferation and EMT in HT29 cells. CONCLUSION Through bioinformatics analysis, we identified potential genes associated with CRC metastasis. The functional studies focusing on SERPINA3/miR-137-3p/miR-296-5p further consolidated its role in regulating CRC progression. Our findings provide insights into novel mechanisms underlying CRC metastasis and might contribute to the development of effective treatment strategies. However, the role of SERPINA3/miR-137-3p/miR-296-5p signaling in CRC still requires further investigation.
Collapse
Affiliation(s)
- Huimin Liu
- Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Xingxing Wu
- Department of Pediatric Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Dandan Wang
- Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Quanxi Li
- Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Xin Zhang
- Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Liang Xu
- Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China.
| |
Collapse
|
2
|
Tang S, Kong P, Li Q, Tang X. Circ_0071589 contributes to growth, angiogenesis, and metastasis of colorectal cancer through regulating miR-296-5p/EN2 axis. J Biochem Mol Toxicol 2023; 37:e23509. [PMID: 37670439 DOI: 10.1002/jbt.23509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 02/01/2023] [Accepted: 08/17/2023] [Indexed: 09/07/2023]
Abstract
To explore the function and regulation mechanism of circ_0071589 in colorectal cancer (CRC). The expression levels of circ_0071589, microRNA-296-5p (miR-296-5p), and Engrailed-2 (EN2) were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was performed to check the protein levels of EN2 and apoptosis-related proteins. Cell colony formation and 5-Ethynyl-29-deoxyuridine (EdU) assay were used to exhibit cell proliferation. Cell apoptosis was shown by flow cytometry. Tube formation assay manifested the angiogenesis ability of CRC cells. Transwell assay demonstrated cell migration and invasion. The interaction between miR-296-5p and circ_0071589 or EN2 was identified by dual-luciferase reporter assay. The effect of circ_0071589 on tumor formation was demonstrated by in vivo tumor formation experiments. Immunohistochemical (IHC) assay was used to detect the positive cell rate of Ki67 in tumor tissue. Circ_0071589 was upregulated in CRC tissue and cells. Circ_0071589 knockdown repressed CRC cells proliferation, angiogenesis, migration, invasion, and promoted cell apoptosis. MiR-296-5p was downregulated in CRC tissue and cells. And miR-296-5p inhibitor could reverse the malignant phenotypes and angiogenesis inhibition of CRC cells caused by circ_0071589 knockdown. Additionally, miR-296-5p decreased CRC cell colony formation, EdU-positive cells, angiogenesis, and increased cell apoptosis through reducing the expression level of EN2. Finally, circ_0071589 silencing inhibited tumor formation in vivo. Circ_0071589 upregulated EN2 expression through sponging miR-296-5p, thereby promoting the malignant phenotype and angiogenesis of CRC cells, which provided a new target for the treatment of CRC.
Collapse
Affiliation(s)
- Shiyu Tang
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Sichuan, China
| | - Pengfei Kong
- Department Of Anorectal, Intergrated Western And Chinese Colorectal And Anal Surgery, Affiliated Hospital Of North Sichuan Medical College, Sichuan, China
| | - Qian Li
- North Sichuan Medical College, Sicchuan, China
| | - Xuegui Tang
- Department Of Anorectal, Intergrated Western And Chinese Colorectal And Anal Surgery, Affiliated Hospital Of North Sichuan Medical College, Sichuan, China
| |
Collapse
|
3
|
Su L, Li X, Mao X, Xu T, Zhang Y, Li S, Zhu X, Wang L, Yao D, Wang J, Huang X. Circ-Ntrk2 acts as a miR-296-5p sponge to activate the TGF-β1/p38 MAPK pathway and promote pulmonary hypertension and vascular remodelling. Respir Res 2023; 24:78. [PMID: 36915149 PMCID: PMC10012448 DOI: 10.1186/s12931-023-02385-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs), a novel class of non-coding RNAs, play an important regulatory role in pulmonary arterial hypertension (PAH); however, the specific mechanism is rarely studied. In this study, we aimed to discover functional circRNAs and investigate their effects and mechanisms in hypoxia-induced pulmonary vascular remodelling, a core pathological change in PAH. METHODS RNA sequencing was used to illustrate the expression profile of circRNAs in hypoxic PAH. Bioinformatics, Sanger sequencing, and quantitative real-time PCR were used to identify the ring-forming characteristics of RNA and analyse its expression. Then, we established a hypoxia-induced PAH mouse model to evaluate circRNA function in PAH by echocardiography and hemodynamic measurements. Moreover, microRNA target gene database screening, fluorescence in situ hybridisation, luciferase reporter gene detection, and western blotting were used to explore the mechanism of circRNAs. RESULTS RNA sequencing identified 432 differentially expressed circRNAs in mouse hypoxic lung tissues. Our results indicated that circ-Ntrk2 is a stable cytoplasmic circRNA derived from Ntrk2 mRNA and frequently upregulated in hypoxic lung tissue. We further found that circ-Ntrk2 sponges miR-296-5p and miR-296-5p can bind to the 3'-untranslated region of transforming growth factor-β1 (TGF-β1) mRNA, thereby attenuating TGF-β1 translation. Through gene knockout or exogenous expression, we demonstrated that circ-Ntrk2 could promote PAH and vascular remodelling. Moreover, we verified that miR-296-5p overexpression alleviated pulmonary vascular remodelling and improved PAH through the TGF-β1/p38 MAPK pathway. CONCLUSIONS We identified a new circRNA (circ-Ntrk2) and explored its function and mechanism in PAH, thereby establishing potential targets for the diagnosis and treatment of PAH. Furthermore, our study contributes to the understanding of circRNA in relation to PAH.
Collapse
Affiliation(s)
- Lihuang Su
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Xiuchun Li
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Xulong Mao
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Tingting Xu
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Yiying Zhang
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Shini Li
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Xiayan Zhu
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Liangxing Wang
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Dan Yao
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| | - Jian Wang
- grid.470124.4State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000 Guangdong China
- grid.266100.30000 0001 2107 4242Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, University of California, La Jolla, San Diego, CA USA
| | - Xiaoying Huang
- grid.414906.e0000 0004 1808 0918Division of Pulmonary Medicine, Wenzhou Key Laboratory of Interdiscipline and Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang China
| |
Collapse
|
4
|
Guo Y, Cui X, Zhang Y, Ma X, Ren A, Huang H. Diagnostic and Prognostic Value of Serum miR-296-5p and miR-28-3p in Human Gastric Cancer. Cancer Biother Radiopharm 2023; 38:95-101. [PMID: 32898433 DOI: 10.1089/cbr.2020.4144] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background: Previous studies reported the use of microRNAs (miRNAs) as diagnostic and/or prognostic biomarkers for various cancers, including gastric cancer (GC). This study evaluated the diagnostic and prognostic significance of serum miR-296-5p and miR-28-3p in GC. Materials and Methods: Serum samples of 90 patients with GC and 90 healthy individuals, and 20 pairs of tissue specimens from patients with GC were collected. The expression of miR-296-5p and miR-28-3p in both the serum and tissue samples were detected using quantitative real-time polymerase chain reaction analysis. The diagnostic and prognostic values of miR-296-5p and miR-28-3p were evaluated by using receiver operating characteristic curve and Kaplan-Meier analyses, respectively. Results: Compared with the healthy controls, the expression of miR-296-5p in the serum and tissues of patients with GC was significantly upregulated, whereas that of miR-28-3p was significantly downregulated. High miR-296-5p and low miR-28-3p levels in the serum significantly correlated with larger tumor size (>5 cm), lymph node metastasis, and TNM stage III+IV. The area under the curve values of miR-296-5p and miR-28-3p were 0.919 and 0.911, respectively, with high sensitivity and specificity. Kaplan-Meier survival curves showed that patients with GC with high level of miR-296-5p or low level of miR-1236-3p in the serum had the poorest overall survival. COX analysis showed that lymphatic metastasis, high miR-296-5p expression, and low miR-28-3p expression are independent parameters indicating poor prognosis in GC. Conclusion: Our findings indicate that serum miR-296-5p and miR-28-3p levels are potential biomarkers in the diagnosis and prognosis of GC.
Collapse
Affiliation(s)
- Yuntong Guo
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Xiaolong Cui
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Yu Zhang
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Xiaobo Ma
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - Aigang Ren
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| | - He Huang
- Department of Gastrointestinal Surgery, First Hospital of ShanXi Medical University, Taiyuan City, China
| |
Collapse
|
5
|
Du N, Li M, Yang D. Hsa_circRNA_102541 regulates the development of atherosclerosis by targeting miR-296-5p/PLK1 pathway. Ir J Med Sci 2022; 191:1153-1159. [PMID: 34251586 DOI: 10.1007/s11845-021-02708-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/26/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cardiovascular disorders pose great threat to public health. As a common type of cardiovascular disease, atherosclerosis is characterized by high morbidity and mortality/recurrence rate. However, the pathogenesis of atherosclerosis is complex and not fully understood. The aim of this study was to investigate the influences of hsa_circRNA_102541 (circ_102541) on proliferation and apoptosis of HUVEC cells and to identify the underlying mechanisms. METHODS RT-PCR was used to determine the expression levels of circ_102541, miR-296-5p, and PLK1 in atherosclerosis and healthy blood samples. Following the transfection with sh-circ_102541, LV-circ_102541, miR-296-5p mimics, miR-296-5p inhibitors, and si-PLK1, cell proliferation was evaluated using CCK8 assay; cell apoptosis was determined by flow cytometry; dual luciferase assay was performed to examine the interaction between abovementioned molecules. The levels of associated markers including PCNA and caspase-3 were assessed by western blotting and RT-qPCR. RESULTS The expression of circRNA_102541 and PLK1 were significantly elevated in atherosclerosis specimens, where the level of miR-296-5p was reduced. Furthermore, circRNA_102541 could bind miR-296-5p and subsequently target PLK1. Following treatment with sh-circRNA_102541 or miR-296-5p mimics, proliferative ability and levels of PCNA were remarkably reduced in HUVEC cells, while apoptosis was significantly enhanced. Co-transfection with miR-296-5p mimics abrogated the effects induced by the overexpressed circ_102541. Additionally, treatment with si-PLK1 attenuated the biological behavior changes caused by miR-296-5p inhibitors in HUVEC cells. Moreover, transfection with LV-PLK1 reversed the effects triggered by miR-296-5p mimics. CONCLUSION Taken together, circRNA_102541 was upregulated in atherosclerosis, and knockdown of circRNA_102541 suppressed cell proliferation while promoted apoptosis of HUVEC cells via miR-296-5p/PLK1. This novel pathway may serve essential roles on the development of atherosclerosis, and circRNA_102541 could be a promising therapeutic candidate for the treatment of atherosclerosis.
Collapse
Affiliation(s)
- Na Du
- Department of Cardiology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121001, People's Republic of China
| | - Mingjin Li
- Liaoning Jinqiu Hospital, Shenyang, Liaoning, 110015, People's Republic of China
| | - Dan Yang
- Department of Dermatology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121001, People's Republic of China.
| |
Collapse
|
6
|
Han W, Kong D, Lu Q, Zhang W, Fan Z. Aloperine inhibits colorectal cancer cell proliferation and metastasis progress via regulating miR-296-5p/STAT3 axis. Tissue Cell 2021; 74:101706. [PMID: 34883316 DOI: 10.1016/j.tice.2021.101706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 11/18/2021] [Accepted: 11/27/2021] [Indexed: 11/26/2022]
Abstract
Anti-tumorous effect of Aloperine (ALO) has been previously found. This study examined the role and the underlying mechanism of ALO in colorectal cancer (CRC). CRC cells were processed by different concentrations of ALO, and subsequently the cell proliferation was detected by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and miR-296-5p expression was determined by quantitative real-time polymerase chain reaction (qRT-PCR). Moreover, the target gene of miR-296-5p was predicted by TargetScan and confirmed by dual-luciferase reporter assay. The expressions of signal transducer and activator of transcription 3 (STAT3), apoptosis-related proteins and epithelial-mesenchymal transition (EMT)-related markers were measured by Western blot. Clone formation assay, flow cytometry, wound-healing and Transwell assays were respectively employed to detect cell proliferation, apoptosis, migration and invasion. ALO inhibited CRC cell proliferation in a dose-dependent manner. MiR-296-5p was low-expressed in CRC tissues and cells, and ALO promoted miR-296-5p expression. STAT3 was targeted by miR-296-5p. Up-regulation of miR-296-5p and ALO treatment both suppressed STAT3 expression, inhibited CRC cell proliferation, migration, invasion as well as the expressions of Bcl-2 and N-cadherin, but promoted apoptosis and expressions of Bax and E-cadherin, which were all reversed by overexpressed STAT3. ALO inhibited CRC cell proliferation, metastasis and EMT but promoted apoptosis via regulating miR-296-5p/STAT3 axis.
Collapse
Affiliation(s)
- Wei Han
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China; Chinese Medicine Modernization and Big Data Research Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China; Department of General Surgery, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China
| | - Desong Kong
- Chinese Medicine Modernization and Big Data Research Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China
| | - Qin Lu
- Department of Proctology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China
| | - Wei Zhang
- Department of Anesthesiology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China
| | - Zhimin Fan
- Department of Proctology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210012, China.
| |
Collapse
|
7
|
Abstract
Literature reports that lncRNA KCNQ1OT1 is markedly up-regulated in cervical cancer (CC) tissues and cell lines, and KCNQ1OT1 can promote the proliferation and metastasis of CC cells. This current work was designed to investigate the molecular mechanism underlying the participation of KCNQ1OT1 in CC progression. Herein, RT-qPCR was utilized for determining the levels of KCNQ1OT1, miR-296-5p and HYOU1 in clinical tumor tissue specimens and CC cell lines. Then, starBase predicted the complementary binding sites of KCNQ1OT1 and miR-296-5p or miR-296-5p and HYOU1. Dual-luciferase reporter assay/RIP assay validated the interplays among KCNQ1OT1/miR-296-5p/HYOU1. In addition, CCK-8, wound healing and transwell assays were employed to assess the proliferative, migrative and invasive properties of CC cells. Moreover, nude mice xenograft model was established by subcutaneously injection with SiHa cells in order to validate the precise functions of KCNQ1OT1/miR-296-5p/HYOU1 axis in CC in vivo. Besides, Immunohistochemical staining examined Ki-67 expression in xenograft tumors and western blotting analysis detected expressions of MMP2/9 and Wnt/β-catenin signaling pathway in CC cells and xenograft tumors. Elevated KCNQ1OT1 and HYOU1 as well as reduced miR-296-5p were observed in clinical tumor tissue specimens and CC cell lines. Results revealed that upregulation of miR-296-5p counteracted the enhancing effects of overexpressed KCNQ1OT1 on the proliferative, migrative and invasive abilities of CC cells. Additionally, HYOU1 overexpression abolished the suppressing effects of silenced KCNQ1OT1 on the malignant behaviors of CC cells and tumor growth. To conclude, KCNQ1OT1 could aggravate the malignant behaviors of CC and facilitate tumor growth through modulating miR-296-5p/HYOU1 axis.
Collapse
Affiliation(s)
- Jun Liu
- Department of Obstetrics and Gynecology, Tianjin Medical University General Hospital, Tianjin, China.,Department of Obstetrics and Gynecology,Hohhot First Hospital, Hohhot, Inner Mongolia, China
| | - Yingmei Wang
- Department of Obstetrics and Gynecology, Tianjin Medical University General Hospital, Tianjin, China
| |
Collapse
|
8
|
Li L, Feng G, Chen T, Zhang L. Circ_0000514 promotes breast cancer progression by regulating the miR-296-5p/CXCL10 axis. J Biochem 2021; 170:753-761. [PMID: 34528678 DOI: 10.1093/jb/mvab097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 09/02/2021] [Indexed: 01/20/2023] Open
Abstract
The biological function of circular RNA 0000514 (circ_0000514) in breast cancer (BC) is still unknown. In this study, we downloaded the microarray dataset GSE101123 from Gene Expression Omnibus (GEO) database and then analyzed the differentially expressed circular RNAs in BC tissues compared with adjacent tissues, and demonstrated that circ_0000514 was up-regulated in BC tissues. Circ_0000514, miR-296-5p, and CXC chemokine ligand10 (CXCL10) expressions in BC tissues and cell lines were probed by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Cell counting kit-8 (CCK-8), 5-bromo-2'-deoxyuridine (BrdU), and Transwell assays were adopted to determine the cell viability, proliferation, migration, and invasion. The targeting relationship between miR-296-5p and circ_0000514 or CXCL10 3'-UTR was predicted by bioinformatics and validated by dual-luciferase reporter assay. We demonstrated that, circ_0000514 and CXCL10 expressions were raised in BC tissues and cell lines while miR-296-5p expression was declined. Circ_0000514 knockdown could inhibit the proliferation, migration, and invasion of BC cells, and miR-296-5p overexpression also suppressed the malignant phenotypes of BC cells. Mechanistically, miR-296-5p was identified as the downstream target of circ_0000514 and could be inhibited by circ_0000514. Moreover, CXCL10 was the target of miR-296-5p, whose expression could be indirectly and positively regulated by circ_0000514. In conclusion, circ_0000514 is involved in BC progression via regulating miR-296-5p/CXCL10 axis.
Collapse
Affiliation(s)
- Liangping Li
- Department of Thyroid Breast Surgery, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei, China
| | - Gang Feng
- Department of Thyroid Breast Surgery, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei, China
| | - Tao Chen
- Department of Thyroid Breast Surgery, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei, China
| | - Lijun Zhang
- Department of Breast Surgery, The First People's Hospital of Jingzhou, Jingzhou 434000, Hubei, China
| |
Collapse
|
9
|
Yang L, Liu Z, Ma J, Wang H, Gao D, Zhang C, Ma Q. CircRPPH1 serves as a sponge for miR-296-5p to enhance progression of breast cancer by regulating FOXP4 expression. Am J Transl Res 2021; 13:7556-7573. [PMID: 34377235 PMCID: PMC8340247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/21/2021] [Indexed: 06/13/2023]
Abstract
Circular RNAs (circRNAs) have been demonstrated to play critical roles in the initiation and development of breast cancer (BC). This study aimed to uncover the regulatory roles of a novel circRNA, circRPPH1 (hsa_circ_0000514) in BC progression. CircRPPH1, miR-296-5p and FOXP4 levels were determined by qRT-PCR. CircRPPH1 stability was detected in response to ribonuclease (RNase) R digestion and actinomycin D treatment. Cell growth, migration and invasion were evaluated using various functional experiments. Protein levels of proliferating cell nuclear antigen (PCNA), matrix metalloproteinase 9 (MMP-9), hexokinase 2 (HK2) and forkhead box protein 4 (FOXP4) were measured by Western blotting. Metabolic alterations of BC cells were evaluated using commercial kits. The interaction between miR-296-5p and circRPPH1/FOXP4 was assessed using dual-luciferase assay, RNA pull-down, and RNA immunoprecipitation (RIP) assay. The in vivo tumorigenesis was assessed in nude mice. According to the results, up-regulation of circRPPH1 was closely correlated with the poor prognosis of BC patients. Functional experiments showed that knockdown of circRPPH1 repressed BC cell growth, migration, invasion, glycolysis, and in vivo tumor growth. In addition, circRPPH1 could sponge miR-296-5p to enhance FOXP4 expression in BC cells. miR-296-5p inhibition or FOXP4 overexpression restored the malignant properties of circRPPH1-silenced BC cells. Thus, circRPPH1 promoted BC malignant progression through regulating miR-296-5p/FOXP4 axis, indicating a possible novel therapeutic strategy involving circRNA for BC patients.
Collapse
Affiliation(s)
- Li Yang
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
| | - Zimeng Liu
- The First Department of General Surgery, Jiujiang NO. 1 People’s HospitalJiujiang, Jiangxi Province, China
| | - Jinping Ma
- Department of General Surgery, Penglai People’s HospitalYantai, Shandong Province, China
| | - Hongbiao Wang
- The Fourth Department of Surgery, Balinzuoqi HospitalChifeng, Inner Mongolia Autonomous Region, China
| | - Dan Gao
- Department of Surgery, Anshan Women’s and Children’s HospitalAnshan, Liaoning Province, China
| | - Chunxia Zhang
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
| | - Qiang Ma
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
| |
Collapse
|
10
|
Pan Z, Zhang Y, Li C, Yin Y, Liu R, Zheng G, Fan W, Zhang Q, Song Z, Guo Z, Rong J, Shen Y. MiR-296-5p ameliorates deep venous thrombosis by inactivating S100A4. Exp Biol Med (Maywood) 2021; 246:2259-2268. [PMID: 34192971 DOI: 10.1177/15353702211023034] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Deep venous thrombosis is one of the most common venous thromboembolic diseases and has a low cure rate and a high postoperative recurrence rate. Furthermore, emerging evidence indicates that microRNAs are involved in deep venous thrombosis. miR-296-5p is an important microRNA that plays a critical role in various cellular functions, and S100A4 is closely related to vascular function. miR-296-5p is downregulated in deep venous thrombosis patients, and its predicted target S100A4 is upregulated in deep venous thrombosis patients. Therefore, it was hypothesized that miR-296-5p may play a vital role in the development of deep venous thrombosis by targeting S100A4. An Ox-LDL-stimulated HUVEC and deep venous thrombosis mouse model was employed to detect the biological functions of miR-296-5p and S100A4. Dual luciferase reporter assays and pull-down assays were used to authenticate the interaction between miR-296-5p and S100A4. ELISA and Western blotting were employed to detect the protein levels of thrombosis-related factors and the endothelial-to-mesenchymal transition (EndMT)-related factors. The miR-296-5p levels were reduced, while the S100A4 levels were enhanced in deep venous thrombosis patients, and the miR-296-5p levels were negatively correlated with the S100A4 levels in deep venous thrombosis patients. miR-296-5p suppressed S100A4 expression by targeting the 3' UTR of S100A4. MiR-296-5p knockdown accelerated ox-LDL-induced HUVEC apoptosis, oxidative stress, thrombosis-related factor expression, and EndMT, while S100A4 knockdown antagonized these effects in ox-LDL-induced HUVECs. S100A4 knockdown reversed the effect induced by miR-296-5p knockdown. Moreover, the in vivo studies revealed that miR-296-5p knockdown in deep venous thrombosis mice exacerbated deep venous thrombosis formation, whereas S100A4 knockdown had the opposite effect. These results indicate that elevated miR-296-5p inhibits deep venous thrombosis formation by inhibiting S100A4 expression. Both miR-296-5p and S100A4 may be potential diagnostic markers and therapeutic targets for deep venous thrombosis.
Collapse
Affiliation(s)
- Zhichang Pan
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Yu Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Chuanyong Li
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Yuan Yin
- Department of Endocrinology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Rui Liu
- Department of Rheumatology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Guangfeng Zheng
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Weijian Fan
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Qiang Zhang
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Zhenyu Song
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Ziyue Guo
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Jianjie Rong
- Department of Vascular Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, China
| | - Yixin Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215006, China
| |
Collapse
|
11
|
Han W, Kong D, Lu Q, Zhang W, Fan Z. Aloperine Inhibits Proliferation and Promotes Apoptosis in Colorectal Cancer Cells by Regulating the circNSUN2/ miR-296-5p/STAT3 Pathway. Drug Des Devel Ther 2021; 15:857-870. [PMID: 33664565 PMCID: PMC7924259 DOI: 10.2147/dddt.s288473] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/16/2021] [Indexed: 12/14/2022]
Abstract
Background Aloperine can regulate miR-296-5p/Signal Transducer and Activator of Transcription 3 (STAT3) pathway to inhibit the malignant development of colorectal cancer (CRC), but the regulatory mechanism is unclear. This study explored the upstream mechanism of Aloperine in reducing CRC damage from the perspective of the circRNA-miRNA-mRNA regulatory network. Methods After treatment with gradient concentrations of Aloperine (0.1 mmol/L, 0.2 mmol/L, 0.4 mmol/L, 0.8 mmol/L and 1 mmol/L) for 24 hours, changes in CRC cell proliferation and apoptosis were detected by functional experiments. Data of the differential expression of miR-296-5p in CRC patients and healthy people were obtained from Starbase. The effects of Aloperine on 12 differentially expressed circRNAs were detected. The binding of miR-296-5p with NOP2/Sun RNA methyltransferase 2 (circNSUN2) and STAT3 was predicted by TargetScan and confirmed through dual-luciferase experiments. The expressions of circNSUN2, miR-296-5p and STAT3 as well as apoptosis-related genes in CRC cells were detected by qRT-PCR and Western blot as needed. Rescue experiments were conducted to test the regulatory effects of circNSUN2, miR-296-5p and STAT3 on CRC cells. Results Aloperine at a concentration gradient inhibited proliferation and promoted apoptosis in CRC cells. The abnormally low expression of miR-296-5p in CRC could be upregulated by Aloperine. Among the differentially expressed circRNAs in CRC, only circNSUN2 not only targets miR-296-5p, but also can be regulated by Aloperine. The up-regulation of circNSUN2 offset the inhibitory effect of Aloperine on cancer cells. The rescue experiments finally confirmed the regulation of circNSUN2/miR-296-5p/STAT3 axis in CRC cells. Conclusion By regulating the circNSUN2/miR-296-5p/STAT3 pathway, Aloperine prevents the malignant development of CRC cells.
Collapse
Affiliation(s)
- Wei Han
- Nanjing University of Chinese Medicine, Nanjing, People's Republic of China.,Chinese Medicine Modernization and Big Data Research Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China.,General Surgery Department, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Desong Kong
- Chinese Medicine Modernization and Big Data Research Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Qin Lu
- Proctology Department, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Wei Zhang
- Anesthesiology Department, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Zhimin Fan
- Proctology Department, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| |
Collapse
|
12
|
Li L, Jiang Z, Zou X, Hao T. Exosomal circ_IFT80 Enhances Tumorigenesis and Suppresses Radiosensitivity in Colorectal Cancer by Regulating miR-296-5p/MSI1 Axis. Cancer Manag Res 2021; 13:1929-1941. [PMID: 33658855 PMCID: PMC7917334 DOI: 10.2147/cmar.s297123] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022] Open
Abstract
Background Exosomal circular RNAs (circRNAs) can act as biomarkers and play crucial roles in colorectal cancer (CRC) and radiosensitivity. The aim of this study was to explore the functions and regulatory mechanism of exosomal circRNA intraflagellar transport 80 (circ_IFT80) in tumorigenesis and radiosensitivity of CRC. Methods Exosomes were detected using transmission electron microscopy (TEM). Protein levels were determined by Western blot assay. The expression of circ_IFT80, microRNA-296-5p (miR-296-5p) and musashi1 (MSI1) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell cycle distribution, cell apoptosis, and cell proliferation were detected by flow cytometry and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, respectively. Colony formation assay was used to determine the radiosensitivity of cells. The interaction between miR-296-5p and circ_IFT80 or MSI1 was verified by dual-luciferase reporter assay. A xenograft tumor model was established to explore the role of exosomal circ_IFT80 in vivo. Results Circ_IFT80 was upregulated in exosomes derived from CRC patient serum and CRC cells. Exosomal circ_IFT80 or circ_IFT80 overexpression facilitated tumorigenesis by increasing cell proliferation and reducing apoptosis, and inhibited radiosensitivity via promoting colony formation and inhibiting apoptosis. Additionally, circ_IFT80 acted as a sponge of miR-296-5p, and miR-296-5p reversed the effects of circ_IFT80 on tumorigenesis and radiosensitivity. Moreover, MSI1 was a direct target of miR-296-5p. Furthermore, miR-296-5p overexpression inhibited tumorigenesis and promoted radiosensitivity by downregulating MSI1. Exosomal circ_IFT80 also accelerated tumor growth in vivo. Conclusion Exosomal circ_IFT80 promoted tumorigenesis and reduced radiosensitivity by regulating miR-296-5p/MSI1 axis, which might provide a novel avenue for treatment of CRC.
Collapse
Affiliation(s)
- Liang Li
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
| | - Zhipeng Jiang
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xiangcai Zou
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Tengfei Hao
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
| |
Collapse
|
13
|
Ma WG, Shi SM, Chen L, Lou G, Feng XL. SP1-induced lncRNA FOXD3-AS1 contributes to tumorigenesis of cervical cancer by modulating the miR-296-5p/HMGA1 pathway. J Cell Biochem 2021; 122:235-248. [PMID: 32959937 DOI: 10.1002/jcb.29846] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 08/14/2020] [Accepted: 08/20/2020] [Indexed: 12/15/2022]
Abstract
Long noncoding RNAs (lncRNAs) have drawn growing attention due to their regulatory roles in various diseases, including tumors. Recently, lncRNA FOXD3 antisense RNA 1 (FOXD3-AS1) was shown to be overexpressed in colon adenocarcinoma and glioma, exerting oncogenic functions. However, its expression and effects in cervical cancer (CC) remained unknown. In this research, our group first reported that the levels of FOXD3-AS1 were distinctly elevated in CC samples and cell lines. The distinct upregulation of FOXD3-AS1 was associated with lymphatic invasion, distant metastasis, and International Federation of Gynecology and Obstetrics stage, and also predicted poor clinical results of CC patients. Next, transcription factor SP1 was demonstrated to resulting in the upregulation of FOXD3-AS1 in CC. Functional assays indicated that knockdown of FOXD3-AS1 distinctly suppressed CC progression via affecting cell proliferation, cell apoptosis, and metastasis. Moreover, mechanistic studies suggested that FOXD3-AS1 acted as an endogenous sponge by directly binding miR-296-5p, resulting in the suppression of miR-296-5p. In addition, we also reported that high mobility group A, a direct target of miR-296-5p, could mediate the tumor-promotive effects that FOXD3-AS1 displayed. Overall, our present study might help to lead a better understanding of the pathogenesis of CC, provide a novel possible tumor biomarker, and probe the feasibility of lncRNA-directed treatments for CC.
Collapse
Affiliation(s)
- Wen-Guang Ma
- Department of Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Si-Mao Shi
- Department of Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Lu Chen
- Department of Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Ge Lou
- Department of Gynecology, The Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiao-Ling Feng
- Department of Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| |
Collapse
|
14
|
Wang P, Sun Y, Yang Y, Chen Y, Liu H. Circ_0067835 Knockdown Enhances the Radiosensitivity of Colorectal Cancer by miR-296-5p/IGF1R Axis. Onco Targets Ther 2021; 14:491-502. [PMID: 33500625 PMCID: PMC7822227 DOI: 10.2147/ott.s281011] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/24/2020] [Indexed: 12/28/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common malignant cancers globally. Circular RNAs (circRNAs) have been implicated in the development of CRC. In this paper, we set to explore the precise action of circ_0067835 in CRC progression and radioresistance. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was used to evaluate the expression of circ_0067835, microRNA-296-5p (miR-296-5p) and insulin-like growth factor 1 receptor (IGF1R). Western blot was used to measure the level of IGF1R protein. Cell proliferation, cell cycle distribution and apoptosis were determined by Cell Counting Kit-8 (CCK-8), colony formation, flow cytometry and caspase-3 activity assays, respectively. The direct relationship between miR-296-5p and circ_0067835 or IGF1R was verified by dual-luciferase reporter assays. Additionally, in vivo assays were applied to confirm the role of circ_0067835 in vivo. Results Exosomal circ_0067835 was upregulated in the serum of CRC patients after radiotherapy. Exosome-mediated circ_0067835 knockdown repressed cell proliferation, cell cycle progression, and enhanced cell apoptosis and radiosensitivity in vitro. Circ_0067835 sponged miR-296-5p to regulate IGF1R expression in CRC cells. Moreover, the knockdown of circ_0067835 regulated CRC cell behaviors by up-regulating miR-296-5p and down-regulating IGF1R in vitro. Furthermore, circ_0067835 knockdown diminished tumor growth and promoted cell radiosensitivity in vivo. Conclusion Circ_0067835 knockdown suppressed CRC progression and enhanced CRC cell radiosensitivity partially by the miR-296-5p/IGF1R axis. The findings established a rationale that targeting circ_0067835 might be a promising point for improving CRC treatment.
Collapse
Affiliation(s)
- Peng Wang
- Department of Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou, Henan, People's Republic of China
| | - Yongmin Sun
- Department of Nuclear Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yang Yang
- Department of Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou, Henan, People's Republic of China
| | - Yanzhao Chen
- Department of Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou, Henan, People's Republic of China
| | - Hui Liu
- Department of Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou, Henan, People's Republic of China
| |
Collapse
|
15
|
Chen M, Chen C, Luo H, Ren J, Dai Q, Hu W, Zhou K, Tang X, Li X. MicroRNA-296-5p inhibits cell metastasis and invasion in nasopharyngeal carcinoma by reversing transforming growth factor-β-induced epithelial-mesenchymal transition. Cell Mol Biol Lett 2020; 25:49. [PMID: 33292168 PMCID: PMC7640465 DOI: 10.1186/s11658-020-00240-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Aim To explore the effect of miR-296-5p on the metastasis of nasopharyngeal carcinoma (NPC) cells and investigate the underlying mechanism. Methods The expressions of miR-296-5p in NPC tissues and cells were determined using GSE32920 database analysis and real-time PCR and miRNA microarray assays. An miR-296-5p mimic and inhibitor were transfected into NPC cells. Then, immunofluorescence imaging, scratch wound-healing, transwell migration and invasion assays were used to observe the effects of miR-296-5p on cell metastasis and invasion. Real-time PCR and western blotting were carried out to detect the expressions of genes and proteins related to epithelial–mesenchymal transition (EMT). A dual luciferase reporter assay was used to identify whether TGF-β is the target gene of miR-296-5p. Finally, TGF-β expression plasmids were transfected into NPC cells to verify the role of TGF-β in the miR-296-5p-mediated inhibition of nasopharyngeal carcinoma cell metastasis. Results Our results show that miR-296-5p inhibits the migratory and invasive capacities of NPC cells by targeting TGF-β, which suppresses EMT. Importantly, the miR-296-5p level was significantly lower in human NPC tissues than in adjacent normal tissues. It also negatively correlated with TGF-β and was significantly associated with the lymph node metastasis of patients with NPC. Conclusions Our findings show that miR-296-5p represses the EMT-related metastasis of NPC by targeting TGF-β. This provides new insight into the role of miR-296-5p in regulating NPC metastasis and invasiveness.
Collapse
Affiliation(s)
- Meihui Chen
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.,Department of Clinical Laboratory of Zhanjiang Central Hospital, Zhanjiang, 524023, China
| | - Chen Chen
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Haiqing Luo
- Center of Oncology of The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524023, China
| | - Jing Ren
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Qiuqin Dai
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Wenjia Hu
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Keyuan Zhou
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China
| | - Xudong Tang
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.
| | - Xiangyong Li
- Institute of Biochemistry and Molecular Biology of Guangdong Medical University, No. 2 Wenming Dong Road, Xiashan District, Zhanjiang, 524023, Guangdong, China.
| |
Collapse
|
16
|
Wang L. ELF1-activated FOXD3-AS1 promotes the migration, invasion and EMT of osteosarcoma cells via sponging miR-296-5p to upregulate ZCCHC3. J Bone Oncol 2020; 26:100335. [PMID: 33204608 PMCID: PMC7653078 DOI: 10.1016/j.jbo.2020.100335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma (OS) is a malignant carcinoma often occurring in adolescents. The critical function of long non-coding RNAs (lncRNAs) in cancer arouses increasing attention. Nevertheless, the specific function of FOXD3 Antisense RNA 1 (FOXD3-AS1) in OS has not been understood yet. In this research, FOXD3-AS1 showed strengthened level in OS specimens and cell lines, and its deficiency restrained cell migration, invasion and epithelial-to-mesenchymal transition (EMT) in OS. Then, we confirmed the interaction of FOXD3-AS1 with microRNA-296-5p (miR-296-5p) and that miR-296-5p overexpression blocked OS cell migration, invasion and EMT. Besides, miR-296-5p targeted zinc finger CCHC-type containing 3 (ZCCHC3), and FOXD3-AS1 released ZCCHC3 via sequestering miR-296-5p. Moreover, rescue assays delineated that ZCCHC3 upregulation neutralized the inhibitory effect of FOXD3-AS1 depletion on in vitro behaviors and in vivo tumorigenesis in OS. In addition, E74 like ETS transcription factor 1 (ELF1) stimulated FOXD3-AS1 transcription, and ELF1 silence-suppressed malignant phenotypes of OS cells were offset by FOXD3-AS1 upregulation. Overall, present work elucidated that ELF1-activated FOXD3-AS1 aggravated cell migration, invasion and EMT in OS via absorbing miR-296-5p to augment ZCCHC3 expression, which might provide potential guidance for researchers to find effective targets for OS treatment.
Collapse
Affiliation(s)
- Lei Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| |
Collapse
|
17
|
Ma C, Ma N, Qin L, Miao C, Luo M, Liu S. DICER1-AS1 Promotes the Malignant Behaviors of Colorectal Cancer Cells by Regulating miR-296-5p/STAT3 Axis. Cancer Manag Res 2020; 12:10035-10046. [PMID: 33116860 PMCID: PMC7568600 DOI: 10.2147/cmar.s252786] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/10/2020] [Indexed: 12/21/2022] Open
Abstract
Background Long non-coding RNA (lncRNA) exerts a regulatory role in the occurrence and progression of tumors. This study aimed at probing into the function and mechanism of lncRNA DICER1 antisense RNA 1 (DICER1-AS1) in colorectal cancer (CRC). Methods The expressions of DICER1-AS1, miR-296-5p and STAT3 mRNA were tested by quantitative real-time polymerase chain reaction (qRT-PCR). Cell counting kit-8 (CCK-8) assay was employed to detect cell proliferation, and Transwell was used to detect cell migration and invasion. In addition, the expressions of apoptosis-related proteins Bax and Bcl2 were detected by Western blot. Interactions between DICER1-AS1 and miR-296-5p, and miR-296-5p and STAT3 were predicted and determined by bioinformatics analysis, luciferase reporter assay and RNA binding protein immunoprecipitation (RIP) assay. Results The expressions of DICER1-AS1 and STAT3 mRNA were significantly up-regulated while miR-296-5p expression was remarkably down-regulated in CRC tissues and cell lines. Over-expression of DICER1-AS1 or transfection of miR-296-5p inhibitors could promote the proliferation, migration and invasion and inhibit apoptosis of CRC cells, whereas knockdown of DICER1-AS1 or transfection of miR-296-5p mimics had the opposite effects. Additionally, DICER1-AS1 could down-regulate miR-296-5p expression via sponging it. DICER1-AS1 also enhanced the expression of STAT3, which was identified as a target gene of miR-296-5p. Conclusion DICER1-AS1 acts as an oncogenic lncRNA in CRC via modulating miR-296-5p/STAT3 axis. Our results provide a new direction for the diagnosis and treatment of CRC.
Collapse
Affiliation(s)
- Chuanyu Ma
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Ning Ma
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Lili Qin
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Chuanna Miao
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Minglei Luo
- Department of Proctology, Linyi Central Hospital, Linyi, Shandong Province, People's Republic of China
| | - Shuhong Liu
- Department of Radiotherapy, Linyi Cancer Hospital, Linyi, Shandong Province, People's Republic of China
| |
Collapse
|
18
|
Cao Z, Liu W, Qu X, Bi H, Sun X, Yu Q, Cheng G. miR-296-5p inhibits IL-1β-induced apoptosis and cartilage degradation in human chondrocytes by directly targeting TGF-β1/CTGF/p38MAPK pathway. Cell Cycle 2020; 19:1443-1453. [PMID: 32378978 DOI: 10.1080/15384101.2020.1750813] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Osteoarthritis (OA) is characterized by apoptosis of chondrocytes and an imbalance of extracellular matrix (ECM) synthesis and catabolism. Emerging evidence has demonstrated that miRNAs are involved in OA pathologies, but the role of miR-296-5p in OA remains unclear. The present study proposes to reveal the functions and mechanisms of miR-296-5p in a cell model of OA. In this study, human chondrocytes were treated with 5 ml interleukin-1 beta (IL-1β) to induce apoptosis and cartilage degradation. Our results showed that miR-296-5p was downregulated in chondrocytes stimulated with IL-1β. Overexpressed miR-296-5p enhanced cell proliferation and inhibited apoptosis and matrix degrading enzyme expression in response to IL-1β stimulation, and knockdown of miR-296-5p showed the opposite effect. Further, we found that miR-296-5p directly targeted the 3'-untranslated region (3'-UTR) of TGF-β1 mRNA, and miR-296-5p inactivated the TGF-β1/CTGF/p38MAPK signaling pathway. Overexpression of TGF-β1 alleviated the inhibition of miR-296-5p on chondrocyte apoptosis and cartilage degradation. In conclusion, miR-296-5p inhibited the progression of OA through the CTGF/p38MAPK pathway by directly targeting TGF-β1.
Collapse
Affiliation(s)
- Zhilin Cao
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Wenguang Liu
- Department of Joint Surgery, The Second Hospital of Shandong University , Jinan, Shandong Province, China
| | - Xiaoyi Qu
- Department of Nursing, Nurse School of Yantai City of Shandong Province , China
| | - Haiyong Bi
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Xiujiang Sun
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Qian Yu
- Department of Hospital Surgary, Yantaishan Hospital , Yantai, Shandong Province, China
| | - Gong Cheng
- Department of Orthopedics, Yantaishan Hospital , Yantai, Shandong Province, China
| |
Collapse
|
19
|
Chen Z, Xiao K, Chen S, Huang Z, Ye Y, Chen T. Circular RNA hsa_circ_001895 serves as a sponge of microRNA-296-5p to promote clear cell renal cell carcinoma progression by regulating SOX12. Cancer Sci 2020; 111:713-726. [PMID: 31782868 PMCID: PMC7004537 DOI: 10.1111/cas.14261] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/21/2019] [Accepted: 11/23/2019] [Indexed: 02/06/2023] Open
Abstract
There is an urgent need to find novel potential therapeutic targets for the diagnosis and treatment of clear cell renal cell carcinoma (ccRCC) due to its highly invasive ability as a common urological malignant tumor. Circular RNAs (circRNAs) have been indicated as potentially critical mediators in various types of tumor progression. We first used qRT-PCR analysis to find dysregulated circRNAs in ccRCC. A novel circRNA, hsa_circ_001895, was upregulated in ccRCC specimens and associated with metastatic properties of ccRCC. However, the tumorigenic mechanism of hsa_circ_001895 on ccRCC is yet to be found. We first indicated that hsa_circ_001895 predicted a poor prognosis in ccRCC patients. Additionally, overexpression of hsa_circ_001895 not only promoted cell proliferation, invasion and migration of ccRCC, but also inhibited cell apoptosis, whereas hsa_circ_001895 knockdown reversed the effect on ccRCC progression. In vivo s.c. xenotransplanted tumor model also showed that silencing hsa_circ_001895 could suppress in vivo ccRCC growth. Mechanistically, hsa_circ_001895 directly binds with microRNA (miR)-296-5p and inhibits its expression. Moreover, sex determining region Y (SRY)-box 12 (SOX12) was identified as a target of miR-296-5p, the expression of which was suppressed by miR-296-5p. Notably, the inhibitory effect of hsa_circ_001895 on ccRCC progression was reversed by miR-296-5p inhibitor. In general, our findings indicated that hsa_circ_001895 may sponge miR-296-5p and promote SOX12 expression, which is the underlying mechanism of hsa_circ_001895-induced ccRCC progression.
Collapse
Affiliation(s)
- Zhuangfei Chen
- Department of UrologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Kanghua Xiao
- Department of UrologyCancer CenterSun Yat‐Sen University and State Key Laboratory of Oncology in Southern ChinaGuangzhouChina
| | - Shijun Chen
- Department of UrologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zehai Huang
- Department of UrologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Yunlin Ye
- Department of UrologyCancer CenterSun Yat‐Sen University and State Key Laboratory of Oncology in Southern ChinaGuangzhouChina
| | - Tong Chen
- Department of UrologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| |
Collapse
|
20
|
Li Y, Ding X, Xiu S, Du G, Liu Y. LncRNA NEAT1 Promotes Proliferation, Migration And Invasion Via Regulating miR-296-5p/CNN2 Axis In Hepatocellular Carcinoma Cells. Onco Targets Ther 2019; 12:9887-9897. [PMID: 31819486 PMCID: PMC6874127 DOI: 10.2147/ott.s228917] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/30/2019] [Indexed: 01/10/2023] Open
Abstract
Background Emerging evidence has revealed that long noncoding RNA nuclear paraspeckle assembly transcript 1 (lncRNA NEAT1) is implicated in the development of various cancers. However, the underlying molecular mechanisms of NEAT1 in hepatocellular carcinoma (HCC) remain unclear. Methods The expression of NEAT1, miR-296-5p and Calponin 2 (CNN2) was detected by quantitative real-time polymerase chain reaction or Western blot, respectively. Cell proliferation and apoptosis were analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay or flow cytometry, respectively. Transwell assay was used to determine cell migration and invasion. The interaction between miR-296-5p and NEAT1 or CNN2 was analyzed by dual-luciferase reporter assay and RIP assay. Huh7 cells transfected with sh-NEAT1 were used to establish the murine xenograft model. Results NEAT1 was elevated in HCC tissues and cell lines. Knockdown of NEAT1 significantly inhibited proliferation, migration and invasion of HCC cells in vitro as well as tumor growth in vivo. NEAT1 was a sponge of miR-296-5p and remarkably reduced the level of miR-296-5p in HCC cells. Furthermore, NEAT1 silence significantly decreased the expression of CNN2, which was the direct target of miR-296-5p. Besides that, the tumor suppression caused by NEAT1 silence could be rescued by CNN2 restoration or miR-296-5p inhibition in vitro. Additionally, NEAT1 indirectly regulated CNN2 expression by competing to miR-296-5p in vitro and in vivo. Conclusion LncRNA NEAT1 contributes to HCC progression by regulating miR-296-5p/CNN2 axis, providing a novel regulatory mechanism for HCC development and a promising therapeutic target for the HCC treatment.
Collapse
Affiliation(s)
- Yandong Li
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun City, Jilin, People's Republic of China
| | - Xiyan Ding
- Department of Neurology, Beihua University, Jilin City, Jilin, People's Republic of China
| | - Shuqiu Xiu
- Department of Medical, Beihua University, Jilin City, Jilin, People's Republic of China
| | - Guobin Du
- President's Office, The Sixth Peoples's Hospital of Jilin City, Jilin City, Jilin, People's Republic of China
| | - Yahui Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun City, Jilin, People's Republic of China
| |
Collapse
|
21
|
Li MM, Liu XH, Zhao YC, Ma XY, Zhou YC, Zhao YX, Liu XY. Long noncoding RNA KCNQ1OT1 promotes apoptosis in neuroblastoma cells by regulating miR-296-5p/Bax axis. FEBS J 2019; 287:561-577. [PMID: 31433907 DOI: 10.1111/febs.15047] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/07/2019] [Accepted: 08/19/2019] [Indexed: 11/26/2022]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as important regulators of multiple cellular processes such as cell invasion, growth, apoptosis and differentiation. LncRNAs can function as competing endogenous RNAs (ceRNAs) which sponge and sequester microRNA (miRNA) to regulate specific targets. Previously, we found that the target genes of several miRNAs, including FADD, Fas, Casp and Bax, are related to neuronal apoptosis and form a regulatory network. Among several factors, microRNA-296-5p expression was found to be negatively correlated with caspase activity and apoptosis. Here, we aimed to investigate the role of miR-296-5p in neuroblastoma (NB) cells. By performing quantitative real-time PCR (qRT-PCR), western blot and flow cytometry assays we analysed the expression of apoptotic markers in NB cells transfected with miR-296-5p mimics or inhibitor. Pathway-specific PCR array allowed us to identify the target genes of miR-296-5p. Using LncBase online tool, we predicted lncRNA KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) as an upstream regulator of miR-296-5p. The binding of KCNQ1OT1 and miR-296-5p was validated via RNA immunoprecipitation and Biotin pull-down assays. We also demonstrate that miR-296-5p suppresses apoptosis of NB cells in vitro and in vivo. Mechanistically, miR-296-5p directly bound the 3'UTR of Bax mRNA, thus repressing Bax at the mRNA and protein level. Moreover, through bioinformatic analysis and molecular experiments, we showed that KCNQ1OT1 sponged miR-296-5p and impaired its effect on NB cell apoptosis. In summary, KCNQ1OT1 is a potent promoting factor of cell apoptosis, which acts by sponging miR-296-5p and upregulating Bax. Our findings identify a regulatory axis of cell fate in NB cells.
Collapse
Affiliation(s)
- Meng-Meng Li
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao-Hui Liu
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi-Chen Zhao
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao-Ye Ma
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yu-Chen Zhou
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan-Xin Zhao
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xue-Yuan Liu
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
22
|
Rong D, Lu C, Zhang B, Fu K, Zhao S, Tang W, Cao H. CircPSMC3 suppresses the proliferation and metastasis of gastric cancer by acting as a competitive endogenous RNA through sponging miR-296-5p. Mol Cancer 2019; 18:25. [PMID: 30777076 PMCID: PMC6378730 DOI: 10.1186/s12943-019-0958-6] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 02/13/2019] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are a class of non-coding RNAs with a loop structure, but its functions remain largely unknown. Growing evidence has revealed that circRNAs play a striking role as functional RNAs in the progression of malignant disease. However, the precise role of circRNAs in gastric cancer (GC) remains unclear. METHODS CircRNAs were determined by human circRNA array analysis and quantitative reverse transcription polymerase reaction. Luciferase reporter, RNA pull down, and fluorescence in situ hybridization assays were employed to test the interaction between circPSMC3 and miR-296-5p. Ectopic over-expression and siRNA-mediated knockdown of circPSMC3, proliferation, migration and invasion in vitro, and in vivo experiment of metastasis were used to evaluate the function of circPSMC3. RESULTS CircPSMC3 rather than liner PSMC3 mRNA was down-regulated in GC tissues, corresponding plasmas from GC patients as well as GC cell lines compared to normal controls. Lower circPSMC3 expression in GC patients was correlated with higher TNM stage and shorter overall survival. Over-expression of circPSMC3 and miR-296-5p inhibitor could inhibit the tumorigenesis of gastric cancer cells in vivo and vitro whereas co-transfection of circPSMC3 and miRNA-296-5p could counteract this effect. Importantly, we demonstrated that circPSMC3 could act as a sponge of miR-296-5p to regulate the expression of Phosphatase and Tensin Homolog (PTEN), and further suppress the tumorigenesis of gastric cancer cells. CONCLUSION Our study reveals that circPSMC3 can serve as a novel potential circulating biomarker for detection of GC. CircPSMC3 participates in progression of gastric cancer by sponging miRNA-296-5p with PTEN, providing a new insight into the treatment of gastric cancer.
Collapse
Affiliation(s)
- Dawei Rong
- 0000 0000 9255 8984grid.89957.3aDepartment of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| | - Chen Lu
- 0000 0000 9255 8984grid.89957.3aDepartment of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| | - Betty Zhang
- 0000 0004 1936 8227grid.25073.33Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario Canada
| | - Kai Fu
- 0000 0000 9255 8984grid.89957.3aDepartment of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| | - Shuli Zhao
- Department of General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| | - Weiwei Tang
- 0000 0000 9255 8984grid.89957.3aDepartment of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| | - Hongyong Cao
- 0000 0000 9255 8984grid.89957.3aDepartment of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu China
| |
Collapse
|
23
|
Liu X, Wang Y, Zhang X, Zhang X, Guo J, Zhou J, Chai Y, Ma ZL. MicroRNA-296-5p promotes healing of diabetic wound by targeting sodium-glucose transporter 2 (SGLT2). Diabetes Metab Res Rev 2019; 35:e3104. [PMID: 30467970 DOI: 10.1002/dmrr.3104] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/13/2018] [Accepted: 11/20/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND Diabetic wounds are refractory and very difficult to heal. We aimed to use miRNA to identify novel and specific molecular markers for diabetes mellitus (DM) diagnosis and treatment. METHODS The expression level of miR-296-5p was determined in tissue samples of 12 DM patients. The effect of miR-296-5p on proliferation of β-cells was examined using Cell Counting Kit-8 (CCK-8) and colony formation assay. The effect of miR-296-5p on cell cycle progression was analysed using flow cytometry. The target gene was verified using luciferase reporter assay. A rat diabetes model was used to assess the effect of miR-296-5p in vivo. RESULTS Overexpression of miR-296-5p suppressed cell proliferation, arrested cell cycle progression, and increased the healing rate of diabetic wounds both in vivo and in vitro. TargetScan analysis results showed that miR-296-5p is a direct regulator of SGLT2. CONCLUSIONS miR-296-5p can increase the healing rate of diabetic wounds and may be an effective molecular tool in DM diagnosis and therapy.
Collapse
Affiliation(s)
- Xiaomin Liu
- School of Environmental Science and Engineering, Shanghai University, Shanghai, China
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yanmao Wang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiaotian Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xinju Zhang
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jing Guo
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jinbao Zhou
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zhong-Liang Ma
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| |
Collapse
|
24
|
Dinami R, Buemi V, Sestito R, Zappone A, Ciani Y, Mano M, Petti E, Sacconi A, Blandino G, Giacca M, Piazza S, Benetti R, Schoeftner S. Epigenetic silencing of miR-296 and miR-512 ensures hTERT dependent apoptosis protection and telomere maintenance in basal-type breast cancer cells. Oncotarget 2017; 8:95674-95691. [PMID: 29221158 PMCID: PMC5707052 DOI: 10.18632/oncotarget.21180] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/27/2017] [Indexed: 12/31/2022] Open
Abstract
The catalytic subunit of the telomerase complex, hTERT, ensures unlimited proliferative potential of cancer cells by maintaining telomere function and protecting from apoptosis. Using a miRNA screening approach we identified miR-296-5p and miR-512-5p as miRNAs that target hTERT in breast cancer cells. Ectopic miR-296-5p and miR-512-5p reduce telomerase activity, drive telomere shortening and cause proliferation defects by enhancing senescence and apoptosis in breast cancer cells. In line with the relevance of hTERT expression for human cancer we found that miR-296-5p and miR-512-5p expression is reduced in human breast cancer. Accordingly, high expression of miR-296-5p and miR-512-5p target genes including hTERT is linked with significantly reduced distant metastasis free survival and relapse free survival of basal type breast cancer patients. This suggests relevance of the identified miRNAs in basal type breast cancer. Epigenetic silencing of miR-296 and miR-512 encoding genes is responsible for low levels of miR-296-5p and miR-512-5p expression in basal type breast cancer cells. Disrupting gene silencing results in a dramatic upregulation of miR-296-5p and miR-512-5p levels leading to reduced hTERT expression and increased sensitivity to the induction of apoptosis. Altogether, our data suggest that epigenetic regulatory circuits in basal type breast cancer may contribute to high hTERT levels by silencing miR-296-5p and miR-512-5p expression, thereby contributing to the aggressiveness of basal type breast cancer.
Collapse
Affiliation(s)
- Roberto Dinami
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy
| | - Valentina Buemi
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Rosanna Sestito
- Italian National Cancer Institute, Regina Elena, Rome 00144, Italy
| | - Antonina Zappone
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Yari Ciani
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Bioinformatics and Functional Genomics Unit (BFGU), Trieste 34149, Italy
| | - Miguel Mano
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Molecular Medicine Laboratory, Trieste 34149, Italy
| | - Eleonora Petti
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| | - Andrea Sacconi
- Italian National Cancer Institute, Regina Elena, Translational Oncogenomics Group, Rome 00144, Italy
| | - Giovanni Blandino
- Italian National Cancer Institute, Regina Elena, Translational Oncogenomics Group, Rome 00144, Italy
| | - Mauro Giacca
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Molecular Medicine Laboratory, Trieste 34149, Italy
| | - Silvano Piazza
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Bioinformatics and Functional Genomics Unit (BFGU), Trieste 34149, Italy
| | - Roberta Benetti
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Cancer Epigenetics Unit, Trieste 34149, Italy.,Department of Medical and Biological Sciences, Università degli Studi di Udine, Udine 33100, Italy
| | - Stefan Schoeftner
- Laboratorio Nazionale Consorzio Interuniversitario Biotecnologie (LNCIB), Genomic Stability Unit, Trieste 34149, Italy.,Italian National Cancer Institute, Regina Elena, Rome 00144, Italy.,Department of Life Sciences, Università degli Studi di Trieste, Trieste 34127, Italy
| |
Collapse
|
25
|
Lee H, Shin CH, Kim HR, Choi KH, Kim HH. MicroRNA-296-5p Promotes Invasiveness through Downregulation of Nerve Growth Factor Receptor and Caspase-8. Mol Cells 2017; 40:254-261. [PMID: 27927008 PMCID: PMC5424271 DOI: 10.14348/molcells.2017.2270] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 11/21/2016] [Accepted: 11/29/2016] [Indexed: 12/27/2022] Open
Abstract
Glioblastomas (GBM) are very difficult to treat and their aggressiveness is one of the main reasons for this as well as for the frequent recurrences. MicroRNAs post-transcriptionally regulate their target genes through interaction between their seed sequence and 3'UTR of the target mRNAs. We previously reported that miR-296-3p is regulated by neurofibromatosis 2 (NF2) and enhances the invasiveness of GBM cells via SOCS2/STAT3. In this study, we investigated whether miR-296-5p, which originates from the same precursor miRNA as miR-296-3p, can increase the invasiveness of GBM cells. It was observed that miR-296-5p potentiated the invasion of various GBM cells including LN229, T98G, and U87MG. Through bioinformatics approaches, two genes were identified as miR-296-5p targets: caspase-8 (CASP8) and nerve growth factor receptor (NGFR). From results obtained from Ago2 immunoprecipitation and luciferase assays, we found that miR-296-5p downregulates CASP8 and NGFR through direct interaction between seed sequence of the miRNA and 3'UTR of the target mRNA. Knockdown of CASP8 or NGFR also increased the invasive ability of GBM cells, indicating that CASP8 and NGFR are involved in potentiation of invasiveness by miR-296-5p. Consistent with our findings, CASP8 was downregulated in brain metastatic lung cancer cells, which have a high level of miR-296-5p, compared to parental cells, suggesting that miR-296-5p may be generally associated with the acquisition of invasiveness. Collectively, our results implicate miR-296-5p as a potential cause of invasiveness in cancer and suggest it as a promising therapeutic target for GBM.
Collapse
Affiliation(s)
- Hong Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351,
Korea
| | - Chang Hoon Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351,
Korea
| | - Hye Ree Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351,
Korea
| | - Kyung Hee Choi
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351,
Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351,
Korea
- Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351,
Korea
| |
Collapse
|
26
|
Su YH, Tang WC, Cheng YW, Sia P, Huang CC, Lee YC, Jiang HY, Wu MH, Lai IL, Lee JW, Lee KH. Targeting of multiple oncogenic signaling pathways by Hsp90 inhibitor alone or in combination with berberine for treatment of colorectal cancer. Biochim Biophys Acta 2015; 1853:2261-72. [PMID: 25982393 DOI: 10.1016/j.bbamcr.2015.05.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 04/24/2015] [Accepted: 05/08/2015] [Indexed: 12/24/2022]
Abstract
There is a wide range of drugs and combinations under investigation and/or approved over the last decade to treat colorectal cancer (CRC), but the 5-year survival rate remains poor at stages II-IV. Therefore, new, more-efficient drugs still need to be developed that will hopefully be included in first-line therapy or overcome resistance when it appears, as part of second- or third-line treatments in the near future. In this study, we revealed that heat shock protein 90 (Hsp90) inhibitors have high therapeutic potential in CRC according to combinative analysis of NCBI's Gene Expression Omnibus (GEO) repository and chemical genomic database of Connectivity Map (CMap). We found that second generation Hsp90 inhibitor, NVP-AUY922, significantly downregulated the activities of a broad spectrum of kinases involved in regulating cell growth arrest and death of NVP-AUY922-sensitive CRC cells. To overcome NVP-AUY922-induced upregulation of survivin expression which causes drug insensitivity, we found that combining berberine (BBR), a herbal medicine with potency in inhibiting survivin expression, with NVP-AUY922 resulted in synergistic antiproliferative effects for NVP-AUY922-sensitive and -insensitive CRC cells. Furthermore, we demonstrated that treatment of NVP-AUY922-insensitive CRC cells with the combination of NVP-AUY922 and BBR caused cell growth arrest through inhibiting CDK4 expression and induction of microRNA-296-5p (miR-296-5p)-mediated suppression of Pin1-β-catenin-cyclin D1 signaling pathway. Finally, we found that the expression level of Hsp90 in tumor tissues of CRC was positively correlated with CDK4 and Pin1 expression levels. Taken together, these results indicate that combination of NVP-AUY922 and BBR therapy can inhibit multiple oncogenic signaling pathways of CRC.
Collapse
Affiliation(s)
- Yen-Hao Su
- Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Wan-Chun Tang
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ya-Wen Cheng
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Peik Sia
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chi-Chen Huang
- The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chao Lee
- The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Yi Jiang
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ming-Heng Wu
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - I-Lu Lai
- Division of Medicinal Chemistry, College of Pharmacy and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Jun-Wei Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
27
|
Lee KH, Lin FC, Hsu TI, Lin JT, Guo JH, Tsai CH, Lee YC, Lee YC, Chen CL, Hsiao M, Lu PJ. MicroRNA-296-5p ( miR-296-5p) functions as a tumor suppressor in prostate cancer by directly targeting Pin1. Biochim Biophys Acta 2014; 1843:2055-66. [PMID: 24915000 DOI: 10.1016/j.bbamcr.2014.06.001] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 12/15/2022]
Abstract
Upregulation of Pin1 was shown to advance the functioning of several oncogenic pathways. It was recently shown that Pin1 is potentially an excellent prognostic marker and can also serve as a novel therapeutic target for prostate cancer. However, the molecular mechanism of Pin1 overexpression in prostate cancer is still unclear. In the present study, we showed that the mRNA expression levels of Pin1 were not correlated with Pin1 protein levels in prostate cell lines which indicated that Pin1 may be regulated at the post-transcriptional level. A key player in post-transcriptional regulation is represented by microRNAs (miRNAs) that negatively regulate expressions of protein-coding genes at the post-transcriptional level. A bioinformatics analysis revealed that miR-296-5p has a conserved binding site in the Pin1 3'-untranslated region (UTR). A luciferase reporter assay demonstrated that the seed region of miR-296-5p directly interacts with the 3'-UTR of Pin1 mRNA. Moreover, miR-296-5p expression was found to be inversely correlated with Pin1 expression in prostate cancer cell lines and prostate cancer tissues. Furthermore, restoration of miR-296-5p or the knockdown of Pin1 had the same effect on the inhibition of the ability of cell proliferation and anchorage-independent growth of prostate cancer cell lines. Our results support miR-296-5p playing a tumor-suppressive role by targeting Pin1 and implicate potential effects of miR-296-5p on the prognosis and clinical application to prostate cancer therapy.
Collapse
Affiliation(s)
- Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Forn-Chia Lin
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Department of Radiation Oncology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Tai-I Hsu
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Jen-Tai Lin
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Jing-Hong Guo
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Chen-Hsun Tsai
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Cheng Lee
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chieh Lee
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Chi-Long Chen
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|