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Yu D, Chang Z, Liu X, Chen P, Zhang H, Qin Y. Macrophage-derived exosomes regulate gastric cancer cell oxaliplatin resistance by wrapping circ 0008253. Cell Cycle 2023; 22:705-717. [PMID: 36416404 PMCID: PMC9980452 DOI: 10.1080/15384101.2022.2146839] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/02/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
Oxaliplatin (OXA) is a first-line chemotherapy drug for gastric cancer. We aimed to investigate the effect of circ 0008253, contained in M2 polarized macrophage-derived exosomes, on OXA resistance of gastric carcinoma cells. Flow cytometry was performed to detect the differentiation of macrophages and cell apoptosis. Cell Counting Kit-8 assay was conducted to examine the cell viability. Transmission electron microscopy, Nanoparticle Tracking Analysis, Western bolt, and Immunofluorescence were carried out. Cell proliferation was detected with a colony formation experiment. Levels of CD206, Arg1, IL-10, and TGF-β were increased in M2 polarized macrophages. Cell viability was decreased gradually with the increase of time and OXA concentration. Apoptosis of gastric carcinoma cells was decreased after co-culture with M2-polarized macrophages. Exosomes isolated from M2-polarized macrophages (M2-Exos) could be co-located with gastric carcinoma cells. M2-Exos enhanced drug resistance, reduced apoptosis and OXA resistance. Bioinformatics analysis showed that circ 0008253 could be transferred from M2-Exos to gastric carcinoma cells. Overexpressing circ 0008253 increased cell viability, tumor size, and ABCG2 levels, decreased OXA sensitivity. Circ 0008253, contained in M2-Exos, was directly transferred from tumor-associated macrophage to gastric carcinoma cells, finally enhancing OXA resistance.
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Affiliation(s)
- Dandan Yu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Zhiwei Chang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Xiaolei Liu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Pengfei Chen
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Huixian Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Yanru Qin
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
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Zheng SR, Huang QD, Zheng ZH, Zhang ZT, Guo GL. circGFRA1 affects the sensitivity of triple-negative breast cancer cells to paclitaxel via the miR-361-5p/TLR4 pathway. J Biochem 2021; 169:601-611. [PMID: 33481008 DOI: 10.1093/jb/mvaa148] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/10/2020] [Indexed: 01/14/2023] Open
Abstract
In recent years, the role of circular RNAs (circRNAs) in tumours has attracted widespread attention. Some circRNAs have been reported to play a role in triple-negative breast cancer (TNBC). However, circRNAs have rarely been reported in terms of TNBC resistance. This study aimed to clarify that circGFRA1 affects the sensitivity of TNBC cells to paclitaxel (PTX) by the miR-361-5p/TLR4 pathway. Compared with the non-PTX-resistant TNBC cell line MDA-MB-231, the expression of circGFRA1 in the PTX-resistant TNBC cell line MDA-MB-231.PR was significantly increased. The small hairpin RNA-mediated circGFRA1 knockdown inhibited the resistance of TNBC cells to PTX. RNA pull-down assay and luciferase reporter gene assay confirmed the binding between circGFRA1 and miR-361-5p and between miR-361-5p and TLR4. It has been proven that circGFRA1 knockdown can inhibit the resistance of TNBC cells to PTX by promoting the expression of miR-361-5p, and subsequently reduce the expression of TLR4.
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Affiliation(s)
- Shu-Rong Zheng
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, 95 Yong-an Road, Xi-Cheng District, Beijing 100050, China.,Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Qi-di Huang
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Zhi-Hai Zheng
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, 95 Yong-an Road, Xi-Cheng District, Beijing 100050, China.,Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Zhong-Tao Zhang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, 95 Yong-an Road, Xi-Cheng District, Beijing 100050, China
| | - Gui-Long Guo
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang 325000, China
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3
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He L, Zhao X, He L. LINC01140 Alleviates the Oxidized Low-Density Lipoprotein-Induced Inflammatory Response in Macrophages via Suppressing miR-23b. Inflammation 2020; 43:66-73. [PMID: 31748847 DOI: 10.1007/s10753-019-01094-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Our previous study has demonstrated that miR-23b enhances oxidized low-density lipoprotein (oxLDL)-induced inflammatory response of macrophages through the A20/NF-κB signaling pathway, thus contributing to atherosclerosis. This study aims to further investigate the upstream regulators of miR-23b in mediating oxLDL-induced inflammatory response. Human monocyte cell line THP1 was induced to differentiate into macrophages followed by the oxLDL stimulation of inflammatory response. The expression of miR-23b, LINC01140, and p53 mRNA was detected by quantitative PCR. The combination of miR-23b and LINC01140 was confirmed by luciferase reporter assay and RNA immunoprecipitation. The binding of p53 and LINC01140 promoter was determined by luciferase reporter assay. The level of inflammatory cytokines, including MCP-1, TNF-α, and IL-1β, was assessed by enzyme-linked immunosorbent assay. LINC01140 was downregulated, while p53 and miR-23b were upregulated in oxLDL-induced inflammatory response of macrophages. Overexpression of LINC01140 reduced NF-κB activity by reducing miR-23b and increasing A20. The transcription of LINC01140 was inhibited by binding of p53 and the LINC01140 promoter region. Knockdown of p53 significantly reduced NF-κB activity and level of inflammatory cytokines by promoting LINC01140 expression. Our findings demonstrated that LINC01140 acts as an anti-inflammatory factor through negatively regulating miR-23/A20 axis. In addition, p53 is identified as a transcriptional repressor of LINC01140.
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Affiliation(s)
- Liping He
- Department of Cardiology, People's Hospital of Inner Mongolia Autonomous region, No. 20 of Zhaowuda Road, Hohhot city, 010020, Inner Mongolia, China
| | - Xingsheng Zhao
- Department of Cardiology, People's Hospital of Inner Mongolia Autonomous region, No. 20 of Zhaowuda Road, Hohhot city, 010020, Inner Mongolia, China.
| | - Leping He
- The Center of Computer Information, People's Hospital of Inner Mongolia Autonomous region, Hohhot, 010020, Inner Mongolia, China
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Wang Y, Wang Y, Li Y, Wang B, Miao Z, Liu X, Ma Y. Decreased expression of circ_0020397 in intracranial aneurysms may be contributing to decreased vascular smooth muscle cell proliferation via increased expression of miR-138 and subsequent decreased KDR expression. Cell Adh Migr 2020; 13:220-228. [PMID: 31096819 PMCID: PMC6550538 DOI: 10.1080/19336918.2019.1619432] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Dysfunction of vascular smooth muscle cells (VSMCs) mediates intracranial aneurysm (IA). KDR is reported to alleviate IA progression via promoting VSMC proliferation, while the upstream regulators are still unclear. Arterial wall tissues at the aneurysm site from 12 patients were obtained. The real-time PCR result indicated that circRNA_0020397 was down-regulated, but miR-138 was up-regulated in artery wall tissues and cells of IA. Overexpressed circRNA_0020397 promoted proliferation of human umbilical artery SMCs. MiR-138 negatively regulated KDR via binding with 3'UTR of KDR mRNA. The expression of circRNA_0020397 was negatively correlated with miR-138. In conclusion, our findings demonstrated that decreased expression of circRNA_0020397 in IA may contribute to the decreased VSMC proliferation via increasing miR-138 expression and subsequently decreasing KDR expression.
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Affiliation(s)
- Yushe Wang
- a Department of Neurosurgery , Henan Provincial People's Hospital , Zhengzhou , China
| | - Yong Wang
- a Department of Neurosurgery , Henan Provincial People's Hospital , Zhengzhou , China
| | - Yu Li
- a Department of Neurosurgery , Henan Provincial People's Hospital , Zhengzhou , China
| | - Bin Wang
- a Department of Neurosurgery , Henan Provincial People's Hospital , Zhengzhou , China
| | - Zhuang Miao
- a Department of Neurosurgery , Henan Provincial People's Hospital , Zhengzhou , China
| | - Xianzhi Liu
- b Department of Neurosurgery, The First Affiliated Hospital, College of Medicine , Zhengzhou University , Zhengzhou , China
| | - Yuanyuan Ma
- c Department of Anesthesiology , Henan Provincial People's Hospital , Zhengzhou , China
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Liu W, Feng R, Li X, Li D, Zhai W. TGF-β- and lipopolysaccharide-induced upregulation of circular RNA PWWP2A promotes hepatic fibrosis via sponging miR-203 and miR-223. Aging (Albany NY) 2019; 11:9569-9580. [PMID: 31719209 PMCID: PMC6874441 DOI: 10.18632/aging.102405] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/26/2019] [Indexed: 12/18/2022]
Abstract
Both transforming growth factor-beta (TGF-β) and lipopolysaccharide (LPS) can activate hepatic stellate cells (HSCs), thus increasing expressions of alpha smooth muscle actin (α-SMA) and type I collagen alpha 1 (Col1α1) and promoting liver fibrosis. However, whether TGF-β and LPS have a common downstream reactor remains unclear. Recently, a strong relationship of circular RNAs (circRNAs) and fibrogenesis has been elucidated. In this study, we compared the expressions of several circRNAs in TGF-β- and LPS-activated HSCs, and found that circ-PWWP2A was upregulated in both TGF-β- and LPS-activated HSCs and in mouse fibrotic liver tissues. Meanwhile, circ-PWWP2A was positively correlated with HSC activation and proliferation. Two microRNAs, miR-203 and miR-223, were identified to be the downstream targets of circ-PWWP2A using luciferase reporter assay and pull-down interaction assay. Circ-PWWP2A was suggested to promote HSC activation and proliferation via sponging miR-203 and miR-223, and subsequently increasing Fstl1 and TLR4, respectively. Furthermore, downregulating circ-PWWP2A was indicated to alleviate hepatic fibrosis in vivo. In conclusion, our findings indicated that circ-PWWP2A is the common downstream reactor of TGF-β and LPS in HSC activation, and that circ-PWWP2A plays a critical role in hepatic fibrogenesis via sponging miR-203 and miR-223.
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Affiliation(s)
- Wentao Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Ruo Feng
- Department of Histology and Embryology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Xingxing Li
- Department of Cardiac Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Dingyang Li
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Wenlong Zhai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
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Wang Z, Zhu Z, Wang H, Qin B, Liu J, Yao X, Li W, Chen K. Downregulation of circDYNC1H1 exhibits inhibitor effect on cell proliferation and migration in hepatocellular carcinoma through miR‐140‐5p. J Cell Physiol 2019; 234:17775-17785. [PMID: 30864145 DOI: 10.1002/jcp.28403] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/15/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng‐Yang Wang
- Department of Pathology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
- Department of Pathology School of Basic Medicine, Zhengzhou University Zhengzhou China
- Henan Key Laboratory for Tumor Pathology Zhengzhou China
| | - Zhu Zhu
- Department of Biological Sample Bank The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Hua‐Fei Wang
- Department of Biological Sample Bank The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Bo Qin
- Department of Translational Medicine Center The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Jing Liu
- Department of Pathology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
- Department of Pathology School of Basic Medicine, Zhengzhou University Zhengzhou China
- Henan Key Laboratory for Tumor Pathology Zhengzhou China
| | - Xiao‐Han Yao
- Department of Medical Research Center The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Wen‐Cai Li
- Department of Pathology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
- Department of Pathology School of Basic Medicine, Zhengzhou University Zhengzhou China
- Henan Key Laboratory for Tumor Pathology Zhengzhou China
| | - Kui‐Sheng Chen
- Department of Pathology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
- Department of Pathology School of Basic Medicine, Zhengzhou University Zhengzhou China
- Henan Key Laboratory for Tumor Pathology Zhengzhou China
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