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Safari F, Bararpour S, Omidi Chomachaei F. The suppression of cell motility through the reduction of FAK activity and expression of cell adhesion proteins by hAMSCs secretome in MDA-MB-231 breast cancer cells. Invest New Drugs 2024; 42:272-280. [PMID: 38536544 DOI: 10.1007/s10637-024-01434-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 03/20/2024] [Indexed: 06/11/2024]
Abstract
Breast cancer is a leading cause of death in women worldwide. Cancer therapy based on stem cells is considered as a novel and promising platform. In the present study, we explore the therapeutic effects of human amniotic mesenchymal stromal cells (hAMSCs) through the reduction of focal adhesion kinase (FAK) activity, SHP-2, and cell adhesion proteins such as Paxillin, Vinculin, Fibronectin, Talin, and integrin αvβ3 expression in MDA-MB-231 breast cancer cells. For this purpose, we employed a co-culture system using 6-well plate transwell. After 72 h, hAMSCs-treated MDA-MB-231 breast cancer cells, the activity of focal adhesion kinase (FAK) and the expression of SHP-2 and cell adhesion proteins such as Paxillin, Vinculin, Fibronectin, Talin, and integrin αvβ3 expression were analyzed using western blot. The shape and migration of cells were also analyzed. Based on our results, a significant reduction in tumor cell motility through downregulation of the tyrosine phosphorylation level of FAK (at Y397 and Y576/577 sites) and cell adhesion expression in MDA-MB-231 breast cancer cells was demonstrated. Our findings indicate that hAMSCS secretome has therapeutic effects on cancer cell migration through downregulation of FAK activity and expression of cell adhesion proteins.
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Affiliation(s)
- Fatemeh Safari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran.
| | - Setareh Bararpour
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
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2
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Liu W, Huang X, Luo W, Liu X, Chen W. Progerin Inhibits the Proliferation and Migration of Melanoma Cells by Regulating the Expression of Paxillin. Onco Targets Ther 2024; 17:227-242. [PMID: 38533131 PMCID: PMC10964789 DOI: 10.2147/ott.s442504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/25/2024] [Indexed: 03/28/2024] Open
Abstract
Objective Progerin, the underlying cause of Hutchinson-Gilford Progeria Syndrome (HGPS), has been extensively studied for its impact on normal cells and premature aging patients. However, there is a lack of research on its specific effects on tumor cells. Melanoma is one of the most common malignant tumors with high morbidity and mortality. This study aimed to elucidate the potential therapeutic role of progerin in melanoma. Materials and Methods We constructed the melanoma A375 cell line and M14 cell line with stable expression of progerin. The expression of progerin, paxillin, and epithelial-mesenchymal transition (EMT) marker proteins in each cell group was measured using Western blot. The migration, proliferation, and cell cycle of cancer cells were assessed using the transwell assay, wound healing assay, colony formation assay, CCK 8 assay, and flow cytometry. RT-qPCR technology was used to examine the impact of progerin overexpression on microRNA expression. Finally, we transfected paxillin into the progerin overexpression cell group to verify whether progerin regulates the phenotype of tumor cells through paxillin. Results Our study demonstrated that overexpression of progerin leads to decreased expression of paxillin and inhibits cancer cell migration, proliferation, EMT process and cell cycle progression. Additionally, rescue experiments revealed that the migration, proliferation ability, and EMT marker protein expression in progerin overexpressing cancer cells could be partially restored by transfecting a plasmid containing the paxillin gene. Mechanistic investigations further revealed that progerin achieves this inhibition of paxillin expression by upregulating miR-212. Conclusion This study reveals that progerin may inhibit the migration and proliferation of melanoma cells through the miR-212/paxillin axis, which provides a new approach for the future treatment of this disease.
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Affiliation(s)
- Weixian Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, People’s Republic of China
- Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People’s Republic of China
| | - Xinxian Huang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, People’s Republic of China
- Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People’s Republic of China
- School of Medical Technology, Guangdong Medical University, Dongguan, People’s Republic of China
| | - Weizhao Luo
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, People’s Republic of China
- Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People’s Republic of China
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, People’s Republic of China
- Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People’s Republic of China
| | - Weichun Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, People’s Republic of China
- Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People’s Republic of China
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3
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Chen DL, Chen N, Sheng H, Zhang DS. Circular RNA circNCOA3 promotes tumor progression and anti-PD-1 resistance in colorectal cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2024; 7:9. [PMID: 38510750 PMCID: PMC10951830 DOI: 10.20517/cdr.2023.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/08/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
Aim: Circular RNAs (circRNAs) have been found to be involved in tumor progression, but their role in colorectal cancer (CRC) immune escape remains to be elucidated. Methods: circRNAs differentially expressed in responsive and resistant CRC tissues to programmed cell death 1 (PD-1) antibody therapy were identified by microarray analysis. The clinical and pathological significance of circNCOA3 was validated in a separate cohort of CRC samples. The function of circNCOA3 was explored experimentally. RNA immunoprecipitation and luciferase activity assays were conducted to identify downstream targets of circNCOA3. Results: The circNCOA3 was markedly overexpressed in CRC samples resistant to PD-1 blockade. circNCOA3 expression was significantly correlated with adverse tumor phenotypes and poor outcomes in CRC patients. Knockdown of circNCOA3 expression markedly suppressed the proliferative and invasive capability of CRC cells. Moreover, knockdown of circNCOA3 increased the proportion of CD8+ T cells while decreasing the proportion of myeloid-derived suppressor cells (MDSCs). Knockdown of circNCOA3 inhibited tumor growth and increased the sensitivity to PD-1 antibody treatment in mouse tumor models. Further studies revealed that circNCOA3 acted as a competing endogenous RNA (ceRNA) for miR-203a-3p.1 to influence the level of CXCL1. Conclusion: Our findings indicate that circNCOA3 might be useful as a potential biomarker to predict the efficacy and prognosis of CRC patients treated with anti-PD-1 therapy.
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Affiliation(s)
- Dong-Liang Chen
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, Guangdong, China
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Liu W, Huang X, Luo W, Liu X, Chen W. The Role of Paxillin Aberrant Expression in Cancer and Its Potential as a Target for Cancer Therapy. Int J Mol Sci 2023; 24:ijms24098245. [PMID: 37175948 PMCID: PMC10179295 DOI: 10.3390/ijms24098245] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Paxillin is a multi-domain adaptor protein. As an important member of focal adhesion (FA) and a participant in regulating cell movement, paxillin plays an important role in physiological processes such as nervous system development, embryonic development, and vascular development. However, increasing evidence suggests that paxillin is aberrantly expressed in many cancers. Many scholars have also recognized that the abnormal expression of paxillin is related to the prognosis, metastases, invasion, survival, angiogenesis, and other aspects of malignant tumors, suggesting that paxillin may be a potential cancer therapeutic target. Therefore, the study of how aberrant paxillin expression affects the process of tumorigenesis and metastasis will help to develop more efficacious antitumor drugs. Herein, we review the structure of paxillin and its function and expression in tumors, paying special attention to the multifaceted effects of paxillin on tumors, the mechanism of tumorigenesis and progression, and its potential role in tumor therapy. We also hope to provide a reference for the clinical prognosis and development of new tumor therapeutic targets.
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Affiliation(s)
- Weixian Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Xinxian Huang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Weizhao Luo
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Weichun Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
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5
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Meng LQ, Zhang LY, Xu WZ. Paxillin is a potential prognostic biomarker associated with immune cell infiltration in ovarian cancer. Heliyon 2023; 9:e14095. [PMID: 36923874 PMCID: PMC10009461 DOI: 10.1016/j.heliyon.2023.e14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Objective To investigate the expression, prognosis, and underlying mechanism of Paxillin (PXN) in ovarian cancer. Materials and methods By comprehensive use of various bioinformatics tools, we analyzed the expression of PXN and its prognostic value in ovarian cancer. Then, the enrichment analyses were conducted to determine the possible regulatory pathways PXN involved in ovarian cancer. Finally, the associations of PXN expression with immune cell infiltration and immune checkpoints were analyzed. Results PXN was highly expressed in ovarian cancer and its expression could independently predict the overall survival of ovarian cancer patients. More importantly, PXN had a superior ability in predicting long-term survival than age and tumor residual disease in ovarian cancer patients. In addition, PXN was positively related to adherens junction and tight junction pathways. Significant negative relationships between PXN expression and immune infiltrates were observed, however, PXN was positively connected with immune checkpoint (VSIR) in ovarian cancer. Conclusions PXN serves as a reliable prognostic biomarker and may be a potent therapeutic target for ovarian cancer. Moreover, high PXN expression may affect ovarian cancer progression via positive regulation of metastasis-related pathways.
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Affiliation(s)
- Li-Qun Meng
- Operating Room, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, China
| | - Ling-Yan Zhang
- Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, China
| | - Wen-Zhi Xu
- Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, China
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Alam S, Astekar MS, Sapra G, Agarwal A, Agarwal AM, Vishnu Rao SG. Immunohistochemical expression of paxillin in potentially malignant disorders and squamous cell carcinoma patients. J Oral Maxillofac Pathol 2022; 26:322-329. [PMID: 36588853 PMCID: PMC9802509 DOI: 10.4103/jomfp.jomfp_187_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 11/16/2021] [Accepted: 01/21/2022] [Indexed: 01/03/2023] Open
Abstract
Background Cell adhesion molecules are essential to maintain the integrity of stratified squamous epithelium but their expression has to be dynamic to aid the mobility and turnover of cells. Paxillin is one such multi-domain protein which integrates numerous signals from cell surface receptors, integrins and growth factors. It thus functions as a regulator of various physiological and pathological processes including tissue remodeling, cell motility, gene expression, matrix organization, cell proliferation, metastasis and survival. Hence, the assessment of paxillin expression in normal control, potentially malignant disorders and oral squamous cell carcinoma patients was carried out. Material and Methods The present retrospective study comprised of 20 each clinically and histologically confirmed case of normal control, potentially malignant disorders, and oral squamous cell carcinomas. All the slides were stained immunohistochemically using Paxillin antibody. Results The localization, staining intensity and percentage of positivity for paxillin expression was statistically significant among normal control and potentially malignant disorders, whereas oral squamous cell carcinoma showed a non-significant difference. Upon comparison of histopathological grading of potentially malignant disorders, mild versus severe and moderate versus severe epithelial dysplasia showed a statistical significant difference among all the parameters of paxillin expression. However, WDSCC & MDSCC a statistically significant difference among localization and staining intensity of paxillin. Conclusion Paxillin may play an important role in pathogenesis of oral squamous cell carcinoma by altering the adhesive properties of the tumor cells interacting with the extracellular matrix which in turn affects their invasive behavior and histologic differentiation.
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Affiliation(s)
- Shakir Alam
- Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
| | - Madhusudan S Astekar
- Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
| | - Gaurav Sapra
- Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
| | - Ashutosh Agarwal
- Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
| | - Aditi Murari Agarwal
- Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
| | - Sowmya Gujjar Vishnu Rao
- Department of Oral Medicine and Radiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India
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Chen DL, Sheng H, Zhang DS, Jin Y, Zhao BT, Chen N, Song K, Xu RH. The circular RNA circDLG1 promotes gastric cancer progression and anti-PD-1 resistance through the regulation of CXCL12 by sponging miR-141-3p. Mol Cancer 2021; 20:166. [PMID: 34911533 PMCID: PMC8672580 DOI: 10.1186/s12943-021-01475-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 12/04/2021] [Indexed: 12/21/2022] Open
Abstract
Background Dysregulation of circular RNAs (circRNAs) plays an important role in the development of gastric cancer; thus, revealing the biological and molecular mechanisms of abnormally expressed circRNAs is critical for identifying novel therapeutic targets in gastric cancer. Methods A circRNA microarray was performed to identify differentially expressed circRNAs between primary and distant metastatic tissues and between gastric cancer tissues sensitive or resistant to anti-programmed cell death 1 (PD-1) therapy. The expression of circRNA discs large homolog 1 (DLG1) was determined in a larger cohort of primary and distant metastatic gastric cancer tissues. The role of circDLG1 in gastric cancer progression was evaluated both in vivo and in vitro, and the effect of circDLG1 on the antitumor activity of anti-PD-1 was evaluated in vivo. The interaction between circDLG1 and miR-141-3p was assessed by RNA immunoprecipitation and luciferase assays. Results circDLG1 was significantly upregulated in distant metastatic lesions and gastric cancer tissues resistant to anti-PD-1 therapy and was associated with an aggressive tumor phenotype and adverse prognosis in gastric cancer patients treated with anti-PD-1 therapy. Ectopic circDLG1 expression promoted the proliferation, migration, invasion, and immune evasion of gastric cancer cells. Mechanistically, circDLG1 interacted with miR-141-3p and acted as a miRNA sponge to increase the expression of CXCL12, which promoted gastric cancer progression and resistance to anti-PD-1-based therapy. Conclusions Overall, our findings demonstrate how circDLG1 promotes gastric cancer cell proliferation, migration, invasion and immune evasion and provide a new perspective on the role of circRNAs during gastric cancer progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01475-8.
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Affiliation(s)
- Dong-Liang Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China. .,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China.
| | - Hui Sheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Dong-Sheng Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Ying Jin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Bai-Tian Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Nuo Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Kang Song
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Rui-Hua Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China. .,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China.
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8
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Bian P, Liu C, Hu W, Ding Y, Qiu S, Li L. Echinacoside Suppresses the Progression of Breast Cancer by Downregulating the Expression of miR-4306 and miR-4508. Integr Cancer Ther 2021; 20:15347354211062639. [PMID: 34903085 PMCID: PMC8679057 DOI: 10.1177/15347354211062639] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The main treatment of breast cancer includes surgical resection, radiotherapy,
chemotherapy, endocrine therapy, and molecular targeted therapy, but the
outcomes remain unsatisfactory. Previous studies demonstrated that echinacoside,
microRNA (miRNA/miR)-4306 and miR-4508 were associated with lymph node
metastasis, chemoresistance and self-renewal capability in breast cancer, but
in-depth studies on the underlying mechanism of their anticancer effects have
not been performed to date. In order to identify the role of miR-4306 and
miR-4508, and the mechanism of the antitumor effect of echinacoside in breast
cancer, the present study first examined the expression of miR-4306 and miR-4508
in breast cancer tissues to examine their possible role in the development of
breast cancer, then evaluated the effect of echinacoside on the expression of
miR-4306 and miR-4508 on the viability, apoptosis, cell cycle, migration, and
invasion abilities of breast cancer cells to explore the anti-cancer effect of
echinacoside and the involvement of miR-4306 and miR-4508. Finally, the breast
cancer cells and mice bearing breast cancer xenografts were treated with
echinacoside and inhibitors of miR-4508 or miR-4306 to confirm their role on the
anticancer effect of echinacoside. The results showed that miR-4306 and miR-4508
were decreased in breast cancer tissues and cells. Echinacoside inhibited cell
proliferation, invasion and migration, and promoted the apoptosis of breast
cancer cells by downregulating the expression of miR-4306 and miR-4508. In
conclusion, this is the first study to show the association between echinacoside
and miRNAs in cancer. The present study elucidates an underlying molecular
mechanism of the antitumor effect of echinacoside on breast cancer, and thus may
contribute to preventive and therapeutic strategies for breast cancer.
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Affiliation(s)
- Peng Bian
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chuan Liu
- Central Hospital of Zibo, Zibo, China
| | - Wei Hu
- Central Hospital of Zibo, Zibo, China
| | - Yu Ding
- Central Hospital of Zibo, Zibo, China
| | | | - Liang Li
- Central Hospital of Zibo, Zibo, China
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9
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Li P, Wen J, Ren X, Zhou Y, Xue Y, Yan Z, Li S, Tian H, Tang XG, Zhang GJ. MicroRNA-23b-3p targets non-SMC condensing I complex subunit G to promote proliferation and inhibit apoptosis of colorectal cancer cells via regulation of the PI3K/AKT signaling pathway. Oncol Lett 2021; 22:812. [PMID: 34671426 PMCID: PMC8503806 DOI: 10.3892/ol.2021.13073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/31/2021] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common types of malignancy worldwide and has a poor prognosis. Non-SMC condensing I complex subunit G (NCAPG) has been reported to be upregulated in numerous types of malignant tumor. However, to the best of our knowledge, its clinicopathological and biological significance in CRC remain to be elucidated. The results of the present study revealed that NCAPG expression levels were upregulated in human CRC tissues and cell lines. The upregulated expression of NCAPG was positively associated with patient clinicopathological characteristics, such as differentiation and tumor size, and independently associated with poor survival. Consistent with the clinical observations, NCAPG was discovered to promote the proliferation and inhibit the apoptosis of CRC cells. Moreover, NCAPG-knockdown inhibited CRC cell proliferation by regulating the PI3K/AKT signaling pathway. Furthermore, NCAPG was identified as a potential target of microRNA (miR)-23b-3p, which was subsequently demonstrated to negatively regulate NCAPG expression. In conclusion, the findings of the current study indicated that the miR-23b-3p/NCAPG/PI3K/AKT signaling axis may play an important role in CRC carcinogenesis, and the status of the molecule may represent a promising prognostic marker for the disease.
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Affiliation(s)
- Peidong Li
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Jing Wen
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Xiru Ren
- Nanchong Inspection Institute for Food and Drugs, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Yu Zhou
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Yuan Xue
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Zaihua Yan
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Shengjie Li
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Hongpeng Tian
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Xue-Gui Tang
- Anorectal Department of Integrated Traditional Chinese and Western Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Guang-Jun Zhang
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
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10
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Lin KH, Kumar VB, Shanmugam T, Shibu MA, Chen RJ, Kuo CH, Ho TJ, Padma VV, Yeh YL, Huang CY. miR-145-5p targets paxillin to attenuate angiotensin II-induced pathological cardiac hypertrophy via downregulation of Rac 1, pJNK, p-c-Jun, NFATc3, ANP and by Sirt-1 upregulation. Mol Cell Biochem 2021; 476:3253-3260. [PMID: 33886061 DOI: 10.1007/s11010-021-04100-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/04/2021] [Indexed: 12/31/2022]
Abstract
Pathological cardiac hypertrophy is associated with many diseases including hypertension. Recent studies have identified important roles for microRNAs (miRNAs) in many cardiac pathophysiological processes, including the regulation of cardiomyocyte hypertrophy. However, the role of miR-145-5p in the cardiac setting is still unclear. In this study, H9C2 cells were overexpressed with microRNA-145-5p, and then treated with Ang-II for 24 h, to study the effect of miR-145-5p on Ang-II-induced myocardial hypertrophy in vitro. Results showed that Ang-II treatment down-regulated miR-145-5p expression were revered after miR-145-5p overexpression. Based on results of bioinformatics algorithms, paxillin was predicted as a candidate target gene of miR-145-5p, luciferase activity assay revealed that the luciferase activity of cells was substantial downregulated the following co-transfection with wild paxillin 3'UTR and miR-145-5p compared to that in scramble control, while the inhibitory effect of miR-145-5p was abolished after transfection of mutant paxillin 3'UTR. Additionally, overexpression of miR-145-5p markedly inhibited activation of Rac-1/ JNK /c-jun/ NFATc3 and ANP expression and induced SIRT1 expression in Ang-II treated H9c2 cells. Jointly, our study suggested that miR-145-5p inhibited cardiac hypertrophy by targeting paxillin and through modulating Rac-1/ JNK /c-jun/ NFATc3/ ANP / Sirt1 signaling, therefore proving novel downstream molecular pathway of miR-145-5p in cardiac hypertrophy.
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Affiliation(s)
- Kuan-Ho Lin
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - V Bharath Kumar
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Tamilselvi Shanmugam
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Marthandam Asokan Shibu
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine, Hualien Tzu Chi Hospital, Tzu Chi University, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Taipei, 11260, Taiwan
| | - Chih-Yang Huang
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan.
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
- Center of General Education, Tzu Chi University of Science and Technology, Buddhist Tzu Chi Medical Foundation, Hualien, 970, Taiwan.
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, 404, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404, Taiwan.
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11
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Chen Y, Zhao H, Xiao Y, Shen P, Tan L, Zhang S, Liu Q, Gao Z, Zhao J, Zhao Y, Guo Y, Feng Y. Pan-cancer analysis reveals an immunological role and prognostic potential of PXN in human cancer. Aging (Albany NY) 2021; 13:16248-16266. [PMID: 34135128 PMCID: PMC8266322 DOI: 10.18632/aging.203154] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
Abstract
Paxillin (PXN) is a protein involved in numerous physiological processes, and its presence is closely related to the occurrence and development of many types of tumors. However, no studies have analyzed PXN from a pan-cancer perspective. We analyzed PXN expression, immune cell infiltration, prognosis, and biological function across different types of tumors included in The Cancer Genome Atlas and Gene Expression Omnibus datasets. The results showed that expression of PXN varies in different tumors. Expression of PXN strongly correlated with prognosis in patients with tumors; higher PXN expression usually was linked to poor overall and disease-free survival. Expression of PXN in breast invasive carcinoma and lymphoid neoplasm diffuse large B-cell lymphoma was related to the degree of CD8+ T-cell infiltration, and infiltration of cancer-associated fibroblasts, such as kidney renal papillary cell carcinoma and brain lower-grade glioma, was also observed in other tumors. The results of pan-cancer analysis showed that abnormal PXN expression was related to poor prognosis, immune infiltration, and protein phosphorylation in different tumor types. Therefore, the PXN gene may become a potential biomarker of clinical tumor prognosis.
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Affiliation(s)
- Yun Chen
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Han Zhao
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai 200000, China.,Laboratory of Myopia, NHC Key Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai 200000, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai 200000, China
| | - Yan Xiao
- Nursing Department, Ganzhou Municipal Hospital, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Peijun Shen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410011, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Central South University, Changsha, Hunan 410011, China
| | - Li Tan
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Shaohui Zhang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Qiong Liu
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Zhengrong Gao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Jie Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yaqiong Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yunzhi Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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12
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Li P, Wang L, Li P, Hu F, Cao Y, Tang D, Ye G, Li H, Wang D. Silencing lncRNA XIST exhibits antiproliferative and proapoptotic effects on gastric cancer cells by up-regulating microRNA-132 and down-regulating PXN. Aging (Albany NY) 2020; 13:14469-14481. [PMID: 33154189 PMCID: PMC8202840 DOI: 10.18632/aging.103635] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 06/25/2020] [Indexed: 02/07/2023]
Abstract
The present study aims to elucidate the potential therapeutic role of lncRNA XIST in gastric cancer through regulation of microRNA-132 (miR-132) and paxillin (PXN) expression. The study employed 65 gastric cancer tissue specimens and SGC7901 cell lines. Our results demonstrated that expression of lncRNA XIST and PXN was significantly elevated while the expression of miR-132 was significantly reduced in gastric cancer tissues. Dual-luciferase, RNA pull-down and RIP assays demonstrated that lncRNA XIST up-regulated the PXN expression by competitively binding to miR-132. Moreover, silencing of lncRNA XIST and up-regulation of miR-132 could suppress tumor formation ability, cell proliferation and migration, but enhanced apoptosis in gastric cancer. However, the overexpression of PXN achieved the opposite tumor-promotive effect. Meanwhile, rescue experiments suggested that silencing of lncRNA XIST could reverse the tumor-promotive effect exerted by either miR-132 inhibitor or PXN. Taken together, the present study demonstrates lncRNA XIST as a novel oncogenic lncRNA in gastric cancer, highlighting its therapeutic role in this disease.
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Affiliation(s)
- Ping Li
- Department of General Surgery, Huaian Tumor Hospital, Huaian Hospital of Huaian City, Huaian, 223200, P.R. China
- Department of Experimental Surgery-Cancer Metastasis, Medical Faculty Mannheim, Ruprecht Karls University, Mannheim 68167, Germany
| | - Liuhua Wang
- Department of General Surgery, Northern Jiangsu Province Hospital, Clinical Medical College, Institute of General Surgery - Yangzhou, Yangzhou University, Yangzhou 225000, P.R. China
| | - Pengfei Li
- Department of General Surgery, Huaian Tumor Hospital, Huaian Hospital of Huaian City, Huaian, 223200, P.R. China
| | - Fangyong Hu
- Department of General Surgery, Huaian Tumor Hospital, Huaian Hospital of Huaian City, Huaian, 223200, P.R. China
| | - Yi Cao
- Department of Experimental Surgery-Cancer Metastasis, Medical Faculty Mannheim, Ruprecht Karls University, Mannheim 68167, Germany
| | - Dong Tang
- Department of General Surgery, Northern Jiangsu Province Hospital, Clinical Medical College, Institute of General Surgery - Yangzhou, Yangzhou University, Yangzhou 225000, P.R. China
| | - Gang Ye
- Department of General Surgery, Jiangdu People's Hospital of Yangzhou, Yangzhou 225200, P.R. China
| | - Hongbo Li
- Department of General Surgery, Jiangdu People's Hospital of Yangzhou, Yangzhou 225200, P.R. China
| | - Daorong Wang
- Department of General Surgery, Northern Jiangsu Province Hospital, Clinical Medical College, Institute of General Surgery - Yangzhou, Yangzhou University, Yangzhou 225000, P.R. China
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13
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Liu Y, Wang G, Jiang X, Li W, Zhai C, Shang F, Chen S, Zhao Z, Yu W. TRIM67 inhibits tumor proliferation and metastasis by mediating MAPK11 in Colorectal Cancer. J Cancer 2020; 11:6025-6037. [PMID: 32922543 PMCID: PMC7477420 DOI: 10.7150/jca.47538] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/04/2020] [Indexed: 12/31/2022] Open
Abstract
Purpose: We recently reported that tripartite motif-containing 67 (TRIM67) activates p53 to suppress colorectal cancer (CRC). However, the function and mechanism of TRIM67 in the inhibition of CRC cell proliferation and metastasis remains to be further elucidated. Methods: We detected the expression of TRIM67 in CRC tissues compared with normal tissues and confirmed its relationship with clinicopathological features. DNA methylation of TRIM67 was analyzed to determine its significantly hypermethylated sites in CRC tissues. CCK-8, colony formation, transwell migration, and Matrigel invasion assays were performed to evaluate the effects of TRIM67 on cell proliferation and metastasis in CRC cells. RNA sequencing of TRIM67 and TRIM67 rescue experiments were performed to reveal its mechanisms in CRC cell proliferation and metastasis. Results:TRIM67 expression was significantly downregulated in CRC tissues and its expression was associated with clinical stage, invasive depth, tumor size, lymph node metastasis, and Dukes' stage. Three methylation sites were significantly hypermethylated and negatively correlated with TRIM67 expression in CRC tissues. TRIM67 suppressed proliferation, migration, and invasion in CRC cells. RNA sequencing revealed that protein mitogen-activated protein kinase 11 (MAPK11) was a potential downstream negative regulatory gene of TRIM67. Reversing MAPK11 expression could rescue the effects of TRIM67 on the proliferation and metastasis of CRC cells. Conclusion:TRIM67 inhibited cell proliferation and metastasis by mediating MAPK11 in CRC, and may be a potential target to inhibit CRC metastasis.
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Affiliation(s)
- Ying Liu
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Guiqi Wang
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Xia Jiang
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Wei Li
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Congjie Zhai
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Fangjian Shang
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Shihao Chen
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Zengren Zhao
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
| | - Weifang Yu
- Department of Endoscopy Center, The First Hospital of Hebei Medical University, Donggang Road No.89, Shijiazhuang, Hebei 050031, P.R. China
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14
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Alpha KM, Xu W, Turner CE. Paxillin family of focal adhesion adaptor proteins and regulation of cancer cell invasion. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 355:1-52. [PMID: 32859368 PMCID: PMC7737098 DOI: 10.1016/bs.ircmb.2020.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The paxillin family of proteins, including paxillin, Hic-5, and leupaxin, are focal adhesion adaptor/scaffolding proteins which localize to cell-matrix adhesions and are important in cell adhesion and migration of both normal and cancer cells. Historically, the role of these proteins in regulating the actin cytoskeleton through focal adhesion-mediated signaling has been well documented. However, studies in recent years have revealed additional functions in modulating the microtubule and intermediate filament cytoskeletons to affect diverse processes including cell polarization, vesicle trafficking and mechanosignaling. Expression of paxillin family proteins in stromal cells is also important in regulating tumor cell migration and invasion through non-cell autonomous effects on the extracellular matrix. Both paxillin and Hic-5 can also influence gene expression through a variety of mechanisms, while their own expression is frequently dysregulated in various cancers. Accordingly, these proteins may serve as valuable targets for novel diagnostic and treatment approaches in cancer.
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Affiliation(s)
- Kyle M Alpha
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States
| | - Weiyi Xu
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States
| | - Christopher E Turner
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States.
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15
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Wen L, Zhang X, Zhang J, Chen S, Ma Y, Hu J, Yue T, Wang J, Zhu J, Wu T, Wang X. Paxillin knockdown suppresses metastasis and epithelial‑mesenchymal transition in colorectal cancer via the ERK signalling pathway. Oncol Rep 2020; 44:1105-1115. [PMID: 32705241 PMCID: PMC7388420 DOI: 10.3892/or.2020.7687] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 05/28/2020] [Indexed: 12/24/2022] Open
Abstract
Paxillin (PXN) is a cytoplasmic protein that plays an important role in regulating focal adhesion, cytoskeletal rearrangements and cell motility. The present study aimed to investigate the role of PXN in the metastasis of human colorectal cancer (CRC) and its possible mechanisms. Immunohistochemical staining of tissues from 102 surgical CRC patients revealed that high PXN expression was positively correlated with tumour‑node‑metastasis (TNM) stage, lymph node metastasis, distant metastasis, and recurrence at distant sites after radical surgery. In 24 cases of stage IV CRC, PXN expression in liver metastasis was higher than that in the matched primary tumour. The knockdown of PXN inhibited the proliferation, migration and invasion potential of SW480 cells in vitro and in vivo. Transmission electron microscopy revealed the effect of PXN on ultrastructural characteristics, observed mainly in microvilli and desmosomes. The downregulation of PXN decreased the activation of extracellular regulated protein kinase (ERK) and suppressed the epithelial‑mesenchymal transition (EMT) process. Following the downregulation of PXN, the addition of an ERK activator or inhibitor restored or further suppressed EMT, respectively, accompanied by corresponding changes in cell migration and invasion. Collectively, the present results confirmed the important role of PXN in CRC metastasis and revealed that PXN regulated EMT progression via the ERK signalling pathway. PXN may represent a future therapeutic strategy to prevent the EMT‑associated progression and invasion of CRC.
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Affiliation(s)
- Long Wen
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Xiaoqian Zhang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Junling Zhang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Shanwen Chen
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Yongchen Ma
- Department of Endoscopic Center, Peking University First Hospital, Beijing 100034, P.R. China
| | - Jianwen Hu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Taohua Yue
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Jingui Wang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Jing Zhu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Tao Wu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
| | - Xin Wang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
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16
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Zhang B, Chen L, Bai YG, Song JB, Cheng JH, Ma HZ, Ma J, Xie MJ. miR-137 and its target T-type Ca V 3.1 channel modulate dedifferentiation and proliferation of cerebrovascular smooth muscle cells in simulated microgravity rats by regulating calcineurin/NFAT pathway. Cell Prolif 2020; 53:e12774. [PMID: 32034930 PMCID: PMC7106958 DOI: 10.1111/cpr.12774] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/08/2019] [Accepted: 01/17/2020] [Indexed: 01/01/2023] Open
Abstract
Objectives Postflight orthostatic intolerance has been regarded as a major adverse effect after microgravity exposure, in which cerebrovascular adaptation plays a critical role. Our previous finding suggested that dedifferentiation of vascular smooth muscle cells (VSMCs) might be one of the key contributors to cerebrovascular adaptation under simulated microgravity. This study was aimed to confirm this concept and elucidate the underlying mechanisms. Materials and Methods Sprague Dawley rats were subjected to 28‐day hindlimb‐unloading to simulate microgravity exposure. VSMC dedifferentiation was evaluated by ultrastructural analysis and contractile/synthetic maker detection. The role of T‐type CaV3.1 channel was revealed by assessing its blocking effects. MiR‐137 was identified as the upstream of CaV3.1 channel by luciferase assay and investigated by gain/loss‐of‐function approaches. Calcineurin/nuclear factor of activated T lymphocytes (NFAT) pathway, the downstream of CaV3.1 channel, was investigated by detecting calcineurin activity and NFAT nuclear translocation. Results Simulated microgravity induced the dedifferentiation and proliferation in rat cerebral VSMCs. T‐type CaV3.1 channel promoted the dedifferentiation and proliferation of VSMC. MiR‐137 and calcineurin/NFATc3 pathway were the upstream and downstream signalling of T‐type CaV3.1 channel in modulating the dedifferentiation and proliferation of VSMCs, respectively. Conclusions The present work demonstrated that miR‐137 and its target T‐type CaV3.1 channel modulate the dedifferentiation and proliferation of rat cerebral VSMCs under simulated microgravity by regulating calcineurin/NFATc3 pathway.
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Affiliation(s)
- Bin Zhang
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Li Chen
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Yun-Gang Bai
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Ji-Bo Song
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Jiu-Hua Cheng
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Hong-Zhe Ma
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Jin Ma
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Man-Jiang Xie
- Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, Xi'an, China
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17
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Chen MJ, Wu DW, Shen CJ, Cheng YM, Wu CC, Lee H. Hepatitis B virus X protein promotes tumor invasion and poor prognosis in hepatocellular carcinoma via phosphorylation of paxillin at Serine 178 by activation of the c-Jun NH2-terminal kinase. Am J Cancer Res 2020; 10:275-283. [PMID: 32064167 PMCID: PMC7017728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023] Open
Abstract
Hepatitis B virus X protein (HBx) plays critical roles in hepatocellular tumorigenesis by activating different signaling pathways, including the c-Jun NH2-terminal kinase (JNK) pathway. Phosphorylation of paxillin (PXN) promotes cell migration via activation of the JNK signaling pathway, but PXN overexpression is not associated with poor outcome in patients with hepatocellular carcinoma (HCC). HBx gene manipulation and Western blotting indicated that phosphorylation of PXN at Serine 178 (pS178-PXN) by HBx may promote invasiveness in HCC cells via HBx-mediated JNK activation. Immunohistochemical analysis indicated a positive correlation between pS178-PXN and HBx expression levels in tumor specimens. The overall survival (OS) and relapse-free survival (RFS) were poorer in patients with high-pS178-PXN expressing or high-HBx expressing tumors than in patients with low-pS178-PXN expressing or low-HBx expressing tumors. In conclusion, phosphorylation of PXN at Serine 178 by HBx-mediated JNK activation may therefore play a critical role in tumor invasiveness and poor prognosis in patients with HBV-infected hepatocellular tumors. The expression levels of pS178-PXN may be a reliable prognostic biomarker to predict the clinical outcomes in patients with HBV-associated HCC.
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Affiliation(s)
- Ming-Jenn Chen
- Department of Surgery, Chi Mei Medical CenterTainan, Taiwan
- Department of Sports Management, College of Leisure and Recreation Management, Chia Nan University of Pharmacy and ScienceTainan, Taiwan
| | - De-Wei Wu
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical UniversityTaipei, Taiwan
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung UniversityTaoyuan, Taiwan
| | - Ching-Ju Shen
- Department of Gynecology and Obstetrics, Kaohsiung Medical University Hospital, College of Medicine, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Ya-Min Cheng
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung UniversityTainan, Taiwan
| | - Cheng-Chung Wu
- Department of General Surgery, Taichung Veterans General HospitalTaichung, Taiwan
| | - Huei Lee
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical UniversityTaipei, Taiwan
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18
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Zhou J, Zhang S, Chen Z, He Z, Xu Y, Li Z. CircRNA-ENO1 promoted glycolysis and tumor progression in lung adenocarcinoma through upregulating its host gene ENO1. Cell Death Dis 2019; 10:885. [PMID: 31767835 PMCID: PMC6877563 DOI: 10.1038/s41419-019-2127-7] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/12/2019] [Accepted: 10/04/2019] [Indexed: 01/16/2023]
Abstract
Lung adenocarcinoma (LUAD) has long been one of the predominant reasons for the global cancer-linked mortality. The tumor progression is shown by several studies to be promoted by increased glycolysis. Enolase 1 (ENO1), as a glycolysis enzyme, performs pivotal role in glucose metabolism and contributes to tumor progression of numerous cancers. Circular RNAs (circRNAs) are catching increasing attentions for their surging roles in regulating gene expression in cancers. Our work is to uncover the regulatory mechanism circ-ENO1 on its host gene ENO1 and its function in glycolysis and tumor progression. Circ-ENO1 and its host gene ENO1 were identified to be upregulated in LUAD cells. Functionally, silencing circ-ENO1 retarded glycolysis, inhibited proliferation, migration and EMT, induced apoptosis. The cytoplasmic localization of circ-ENO1 was determined by FISH and subcellular fractionation. Mechanistically, circ-ENO1 acted as a ceRNA to interact with miR-22-3p and upregulate ENO1 expression. In vivo experiments certified that circ-ENO1 drove tumor growth and metastasis in vivo. In summary, current study elucidated that circ-ENO1 promoted glycolysis and tumor progression in LUAD by miR-22-3p/ENO1 axis, indicating circ-ENO1 as a promising treatment target for LUAD patients.
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Affiliation(s)
- Jiayu Zhou
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang Province, China
| | - Shizhen Zhang
- Institute of translational Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang province, China
| | - Zhoumiao Chen
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang Province, China.
| | - Zhengfu He
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang Province, China
| | - Yong Xu
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang Province, China
| | - Zhijun Li
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, 310000, Zhejiang Province, China
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19
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Kashani E, Hadizadeh M, Chaleshi V, Mirfakhraie R, Young C, Savabkar S, Irani S, Asadzadeh Aghdaei H, Ashrafian Bonab M. The Differential DNA Hypermethylation Patterns of microRNA-137 and microRNA-342 Locus in Early Colorectal Lesions and Tumours. Biomolecules 2019; 9:E519. [PMID: 31546665 PMCID: PMC6843302 DOI: 10.3390/biom9100519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/01/2019] [Accepted: 09/18/2019] [Indexed: 12/18/2022] Open
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer worldwide, representing 13% of all cancers. The role of epigenetics in cancer diagnosis and prognosis is well established. MicroRNAs in particular influence numerous cancer associated processes including apoptosis, proliferation, differentiation, cell-cycle controls, migration/invasion and metabolism. MiRNAs-137 and 342 are exon- and intron-embedded, respectively, acting as tumour-suppressive microRNA via hypermethylation events. Levels of miRNAs 137 and 342 have been investigated here as potential prognostic markers for colorectal cancer patients. The methylation status of miRNA-137 and miRNA-342 was evaluated using methylation-specific (MSP) polymerase chain reaction (PCR) on freshly frozen tissue derived from 51 polyps, 8 tumours and 14 normal colon mucosa specimens. Methylation status of miRNA-137 and miRNA-342 was significantly higher in tumour lesions compared to normal adjacent mucosa. Surprisingly, the methylation frequency of miR-342 (76.3%) among colorectal cancer patients was significantly higher compared to miR-137 (18.6%). Furthermore, normal tissues, adjacent to the lesions (N-Cs), displayed no observable methylation for miRNA-137, whereas 27.2% of these N-Cs showed miRNA-342 hypermethylation. MiRNA-137 hypermethylation was significantly higher in male patients and miR-342 hypermethylation correlated with patient age. Methylation status of miRNA-137 and miRNA-342 has both diagnostic and prognostic value in CRC prediction and prevention.
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Affiliation(s)
- Elham Kashani
- Institue of Pathology, University of Bern, 3010 Bern, Switzerland.
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran.
| | - Mahrooyeh Hadizadeh
- Department of Applied Sciences, University of the West of England (UWE-Bristol), Bristol BS16 1QY, UK.
| | - Vahid Chaleshi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran.
| | - Reza Mirfakhraie
- Department of Medical Genetics, Shaheed Beheshti University of Medical Sciences, Tehran 19839 69411, Iran.
| | - Chris Young
- Leicester School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester LE1 9BH, UK.
| | - Sanaz Savabkar
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran.
| | - Shiva Irani
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran.
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran.
| | - Maziar Ashrafian Bonab
- Department of Applied Sciences, University of the West of England (UWE-Bristol), Bristol BS16 1QY, UK.
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20
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Yue L, Guo J. LncRNA TUSC7 suppresses pancreatic carcinoma progression by modulating miR-371a-5p expression. J Cell Physiol 2019; 234:15911-15921. [PMID: 30714151 DOI: 10.1002/jcp.28248] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 01/24/2023]
Abstract
Pancreatic carcinoma is one of the most common and lethal human malignancies worldwide. Long noncoding RNAs (lncRNAs) are a well-known type of nonprotein-coding transcripts implicated in cancer development and progression. Increasing evidence has indicated that lncRNA tumor suppressor candidate 7 (TUSC7) is a novel cancer suppressor gene in various cancers. Nevertheless, the function of TUSC7 in pancreatic carcinoma is urgent to be clarified. We found that TUSC7 was notably decreased in tissues and cell lines of pancreatic carcinoma. Moreover, the low expression of TUSC7 was correlated with advanced clinical grades and poorer overall survival. Our findings revealed that TUSC7 repressed cell proliferation, migration, invasion, epithelial-mesenchymal transition, and stemness whereas facilitated cell apoptosis of pancreatic carcinoma cells. Further investigations demonstrated that miR-371a-5p directly bound with TUSC7 and negatively regulated by TUSC7. MiR-371a-5p rescued the inhibitory effects of TUSC7 on the development of pancreatic carcinoma. We conclude that lncRNA TUSC7 suppresses pancreatic carcinoma progression by modulating miR-371a-5p expression, indicating an innovative therapeutic strategy for pancreatic carcinoma.
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Affiliation(s)
- Lei Yue
- Department of Emergency, The Central Hospital of Luoyang, Luoyang, Henan, China
| | - Jing Guo
- Department of Laboratory, Xi'an Central Hospital, Xi'an, Shaanxi, China
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21
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Zhong Y, Wang J, Lv W, Xu J, Mei S, Shan A. LncRNA TTN-AS1 drives invasion and migration of lung adenocarcinoma cells via modulation of miR-4677-3p/ZEB1 axis. J Cell Biochem 2019; 120:17131-17141. [PMID: 31173403 DOI: 10.1002/jcb.28973] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/25/2019] [Accepted: 04/12/2019] [Indexed: 12/28/2022]
Abstract
Lung adenocarcinoma is the most prevalent type of lung cancer with a high incidence and mortality worldwide. Metastasis is the major cause of high death rate in lung cancer and the potential mechanism of lung adenocarcinoma metastasis remains indistinct. Emerging investigations have demonstrated that long noncoding RNA is a kind of non-protein coding RNA and plays a critical role in cancer progression and metastasis. TTN antisense RNA 1 (TTN-AS1) has been reported to promote cell growth and metastasis in cancer. However, the function of TTN-AS1 in lung adenocarcinoma is still to be illustrated. In this study, we observed that TTN-AS1 was upregulated in tissues and cells of lung adenocarcinoma and associated with poor overall survival. TTN-AS1 promoted cell proliferation, migration, invasion, and epithelial-mesenchymal transition in lung cancer. TTN-AS1 directly bound with miR-4677-3p and negatively regulated miR-4677-3p. MiR-4677-3p rescued the inhibitive impacts of TTN-AS1 knockdown on lung adenocarcinoma. Furthermore, zinc finger E-box binding homeobox 1 (ZEB1) was the target of miR-4677-3p, and TTN-AS1 modulated ZEB1 by competing for miR-4677-3p. TTN-AS1 drove the invasion and migration of lung adenocarcinoma cells by targeting the miR-4677-3p/ZEB1 axis. To sum up, our study offers insights into the mechanism of TTN-AS1 in lung adenocarcinoma metastasis and targeting the TTN-AS1/miR-4677-3p/ZEB1 axis may be the potential innovate therapeutic strategy for the patients with lung adenocarcinoma.
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Affiliation(s)
- Yuanbo Zhong
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Jin Wang
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Wen Lv
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Jianzhong Xu
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Shanshan Mei
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Aijun Shan
- Emergency Department, Shenzhen People's Hospital, The Second Medical College of Jinan University, Shenzhen, Guangdong, China
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22
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Wu QQ, Zheng B, Weng GB, Yang HM, Ren Y, Weng XJ, Zhang SW, Zhu WZ. Downregulated NOX4 underlies a novel inhibitory role of microRNA-137 in prostate cancer. J Cell Biochem 2019; 120:10215-10227. [PMID: 30637800 DOI: 10.1002/jcb.28306] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/28/2018] [Indexed: 12/20/2022]
Abstract
Prostate cancer is the second highest caused by cancer-related death among males. microRNAs (miRs) have been reported to participate in carcinogenesis, yet their roles in prostate cancer are rarely studied or investigated. Therefore, the present study attempted to explore the effect of miR-137 in prostate cancer via regulating NADPH oxidase 4 (NOX4). Initially, microarray analysis was performed to obtain prostate cancer-related differentially expressed genes and miRs that regulated NOX4, followed by detecting the expression of miR-137 and NOX4 and its target relationship. Moreover, PC-3 cells were transfected with small interfering RNA (siNOX4) and miR-137 mimic for exploring the effect of miR-137 on glycolysis, cell proliferation, and apoptosis in prostate cancer by evaluating lactate production, glucose uptake, adenosine triphosphate (ATP) production, viability rate, and expression of cleaved caspases 3, 8, and 9, cytochrome c, cleaved poly ADP ribose polymerase (PARP), Bax, and Bcl-2. miR-137 was vital to prostate cancer progression via regulating NOX4. Besides, miR-137 expressed poorly while NOX4 expressed highly in prostate cancer. NOX4 was the target gene of miR-137. Additionally, overexpression of miR-137 and silencing of NOX4 were observed to decrease NOX4 and Bcl-2 protein expression, but increase cleaved caspases 3, 8, and 9, cytochrome c, cleaved-PARP, and Bax protein expression. Furthermore, miR-137 overexpression and NOX4 silencing contributed to decreased lactate production, glucose uptake, ATP production, and cell proliferation, but increased apoptosis rate. Collectively, the present study showed that miR-137 repressed glycolysis in prostate cancer through knockdown of NOX4, which might be a potential theoretical target for prostate cancer treatment.
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Affiliation(s)
- Qi-Quan Wu
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Bin Zheng
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Guo-Bin Weng
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Hou-Meng Yang
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Yu Ren
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Xi-Jun Weng
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Shu-Wei Zhang
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
| | - Wei-Zhi Zhu
- Department of Urology Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, People's Republic of China
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23
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Giunti L, Da Ros M, De Gregorio V, Magi A, Landini S, Mazzinghi B, Buccoliero AM, Genitori L, Giglio S, Sardi I. A microRNA profile of pediatric glioblastoma: The role of NUCKS1 upregulation. Mol Clin Oncol 2019; 10:331-338. [PMID: 30847170 PMCID: PMC6388501 DOI: 10.3892/mco.2019.1795] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 12/10/2018] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs/miRs) are a novel class of gene regulators that may be involved in tumor chemoresistance. Recently, specific miRNA expression profiles have been identified in adult glioblastoma (aGBM), but there are only limited data available on the role of miRNAs in pediatric GBM (pGBM). In the present study, the expression profile of miRNAs was examined in seven pGBMs and three human GBM cell lines (U87MG, A172 and T98G), compared with a non-tumoral pool of pediatric cerebral cortex samples by microarray analysis. A set of differentially expressed miRNAs was identified, including miR-490, miR-876-3p, miR-876-5p, miR-448 and miR-137 (downregulated), as well as miR-501-3p (upregulated). Through bioinformatics analysis, a series of target genes was predicted. In addition, similar gene expression patterns in pGBMs and cell lines was confirmed. Of note, drug resistant T98G cells had upregulated nuclear casein kinase and cyclin-dependent kinase substrate 1 (NUCKS1) expression, a protein overexpressed in many tumors that serves an important role in cell proliferation and progression. On the basis of the present preliminary report, it could be intriguing to further investigate the relationship between each of the identified differentially expressed miRNAs and NUCKS1, in order to clarify their involvement in the multi-drug resistance mechanism of pGBMs.
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Affiliation(s)
- Laura Giunti
- Medical Genetics Unit, Meyer Children's University Hospital, I-50139 Florence, Italy
| | - Martina Da Ros
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children's University Hospital, I-50139 Florence, Italy
| | - Veronica De Gregorio
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children's University Hospital, I-50139 Florence, Italy
| | - Alberto Magi
- Department of Experimental and Clinical Medicine, University of Florence, I-50139 Florence, Italy
| | - Samuela Landini
- Medical Genetics Unit, Department of Clinical and Experimental Biomedical Sciences 'Mario Serio', University of Florence, I-50139 Florence, Italy
| | - Benedetta Mazzinghi
- Nephrology and Dialysis Unit, Meyer Children's University Hospital, I-50139 Florence, Italy
| | | | - Lorenzo Genitori
- Neurosurgery Unit, Meyer Children's University Hospital, I-50139 Florence, Italy
| | - Sabrina Giglio
- Medical Genetics Unit, Meyer Children's University Hospital, I-50139 Florence, Italy.,Medical Genetics Unit, Department of Clinical and Experimental Biomedical Sciences 'Mario Serio', University of Florence, I-50139 Florence, Italy
| | - Iacopo Sardi
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children's University Hospital, I-50139 Florence, Italy
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24
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Guo X, Huang H, Jin H, Xu J, Risal S, Li J, Li X, Yan H, Zeng X, Xue L, Chen C, Huang C. ISO, via Upregulating MiR-137 Transcription, Inhibits GSK3β-HSP70-MMP-2 Axis, Resulting in Attenuating Urothelial Cancer Invasion. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 12:337-349. [PMID: 30195772 PMCID: PMC6037888 DOI: 10.1016/j.omtn.2018.05.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 05/02/2018] [Accepted: 05/20/2018] [Indexed: 01/23/2023]
Abstract
Our most recent studies demonstrate that miR-137 is downregulated in human bladder cancer (BC) tissues, while treatment of human BC cells with isorhapontigenin (ISO) elevates miR-137 abundance. Since ISO showed a strong inhibition of invasive BC formation in the N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN)-induced invasive BC mouse model, the elucidation of a potential biological effect of miR-137 on antagonizing BC invasion and molecular mechanisms underlying ISO upregulation of miR-137 are very important. Here we discovered that ectopic expression of miR-137 led to specific inhibition of BC invasion in human high-grade BC T24T and UMUC3 cells, while miR-137 deletion promoted the invasion of both cells, indicating the inhibitory effect of miR-137 on human BC invasion. Mechanistic studies revealed that ISO treatment induced miR-137 transcription by promoting c-Jun phosphorylation and, in turn, abolishing matrix metalloproteinase-2 (MMP-2) abundance and invasion in BC cells. Moreover, miR-137 was able to directly bind to the 3' UTR of Glycogen synthase kinase-3β (GSK3β) mRNA and inhibit GSK3β protein translation, consequently leading to a reduction of heat shock protein-70 (HSP70) translation via targeting the mTOR/S6 axis. Collectively, our studies discover an unknown function of miR-137, directly targeting the 3' UTR of GSK3β mRNA and, thereby, inhibiting GSK3β protein translation, mTOR/S6 activation, and HSP70 protein translation and, consequently, attenuating HSP70-mediated MMP-2 expression and invasion in human BC cells. These novel discoveries provide a deep insight into understanding the biomedical significance of miR-137 downregulation in invasive human BCs and the anti-cancer effect of ISO treatment on mouse invasive BC formation.
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Affiliation(s)
- Xirui Guo
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Haishan Huang
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Honglei Jin
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jiheng Xu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Sanjiv Risal
- The Center of Drug Discovery, Northeastern University, Boston, MA 02115, USA
| | - Jingxia Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Xin Li
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Huiying Yan
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xingruo Zeng
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Lei Xue
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Changyan Chen
- The Center of Drug Discovery, Northeastern University, Boston, MA 02115, USA
| | - Chuanshu Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA.
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25
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Vidal B, Cascão R, Finnilä MAJ, Lopes IP, da Glória VG, Saarakkala S, Zioupos P, Canhão H, Fonseca JE. Effects of tofacitinib in early arthritis-induced bone loss in an adjuvant-induced arthritis rat model. Rheumatology (Oxford) 2018; 57:1461-1471. [PMID: 28968875 DOI: 10.1093/rheumatology/kex258] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Indexed: 01/22/2023] Open
Abstract
Objectives The main goal of this work was to analyse how treatment intervention with tofacitinib prevents the early disturbances of bone structure and mechanics in the rat model of adjuvant-induced arthritis. This is the first study to access the impact of tofacitinib on the skeletal bone effects of inflammation. Methods Fifty Wistar rats with adjuvant-induced arthritis were randomly housed in experimental groups, as follows: non-arthritic healthy group (n = 20); arthritic non-treated group (n = 20); and 10 animals undergoing tofacitinib treatment. Rats were monitored during 22 days after disease induction for the inflammatory score, ankle perimeter and body weight. Healthy non-arthritic rats were used as controls for comparison. After 22 days of disease progression, rats were killed and bone samples collected for histology, micro-CT, three-point bending and nanoindentation analysis. Blood samples were also collected for quantification of bone turnover markers and systemic cytokines. Results At the tissue level, measured by nanoindentation, tofacitinib increased bone cortical and trabecular hardness. However, micro-CT and three-point bending tests revealed that tofacitinib did not reverse the effects of arthritis on the cortical and trabecular bone structure and on mechanical properties. Conclusion Possible reasons for these observations might be related to the mechanism of action of tofacitinib, which leads to direct interactions with bone metabolism, and/or to the kinetics of its bone effects, which might need longer exposure.
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Affiliation(s)
- Bruno Vidal
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Rita Cascão
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mikko A J Finnilä
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Applied Physics, University of Eastern Finland, Kuopio, Finland
| | - Inês P Lopes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Vânia G da Glória
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Simo Saarakkala
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.,Medical Research Center, University of Oulu, Oulu, Finland
| | - Peter Zioupos
- Biomechanics Laboratories, Cranfield Forensic Institute, Cranfield University, Defence Academy of the UK, Shrivenham, UK
| | - Helena Canhão
- CEDOC, EpiDoC Unit, NOVA Medical School and National School of Public Health, Universidade Nova de Lisboa, Lisboa, Portugal
| | - João Eurico Fonseca
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Rheumatology Department, Centro Hospitalar de Lisboa Norte, EPE, Hospital de Santa Maria, Lisbon Academic Medical Centre, Lisbon, Portugal
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26
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Kokuda R, Watanabe R, Okuzaki D, Akamatsu H, Oneyama C. MicroRNA-137-mediated Src oncogenic signaling promotes cancer progression. Genes Cells 2018; 23:688-701. [PMID: 29962093 DOI: 10.1111/gtc.12610] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 05/06/2018] [Accepted: 06/06/2018] [Indexed: 01/31/2023]
Abstract
The tyrosine kinase c-Src is frequently overexpressed and activated in a wide variety of human cancers. However, the molecular mechanisms responsible for the upregulation of c-Src remain elusive. To examine whether microRNA-mediated c-Src upregulation promotes cancer progression, we screened miRNAs with complementarity to the 3'-UTR of c-Src mRNA. Among these miRNAs, down-regulation of miR-137 was tightly associated with c-Src-mediated tumor progression of human colon cancer cells/tissues. Re-expression of miR-137 in human colon cancer cells suppressed tumor growth and caused the disruption of focal contacts, suppression of cell adhesion, and invasion, although restoration of c-Src in miR-137-treated cells could not fully rescue the tumor-suppressive effect of miR-137. We found that miR-137 targets AKT2 and paxillin also and miR-137-mediated regulation of c-Src /AKT2 is crucial for controlling tumor growth, whereas that of c-Src/paxillin contributes to malignancy. miR-137 suppressed Src-related oncogenic signaling and changed the expression of miRNAs that are regulated by Src activation. miR-137 controls the expression of c-Src/AKT2/paxillin and synergistically suppresses Src oncogenic signaling evoked from focal adhesions. In various human cancers that harbor c-Src upregulation, the dysfunction of this novel mechanism would serve as a critical trigger for tumor progression.
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Affiliation(s)
- Rie Kokuda
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Risayo Watanabe
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Daisuke Okuzaki
- DNA-chip Developmental Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | | | - Chitose Oneyama
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
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27
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Chu PC, Lin PC, Wu HY, Lin KT, Wu C, Bekaii-Saab T, Lin YJ, Lee CT, Lee JC, Chen CS. Mutant KRAS promotes liver metastasis of colorectal cancer, in part, by upregulating the MEK-Sp1-DNMT1-miR-137-YB-1-IGF-IR signaling pathway. Oncogene 2018; 37:3440-3455. [PMID: 29559746 DOI: 10.1038/s41388-018-0222-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/20/2017] [Accepted: 02/25/2018] [Indexed: 02/07/2023]
Abstract
Although the role of insulin-like growth factor-I receptor (IGF-IR) in promoting colorectal liver metastasis is known, the mechanism by which IGF-IR is upregulated in colorectal cancer (CRC) is not defined. In this study, we obtained evidence that mutant KRAS transcriptionally activates IGF-IR gene expression through Y-box-binding protein (YB)-1 upregulation via a novel MEK-Sp1-DNMT1-miR-137 pathway in CRC cells. The mechanistic link between the tumor suppressive miR-137 and the translational regulation of YB-1 is intriguing because epigenetic silencing of miR-137 represents an early event in colorectal carcinogenesis due to promoter hypermethylation. This proposed signaling axis was further verified by the immunohistochemical evaluations of liver metastases from a cohort of 46 KRAS mutant CRC patients, which showed a significant correlation in the expression levels among Sp1, miR-137, YB-1, and IGF-1R. Moreover, suppression of the expression of YB-1 and IGF-IR via genetic knockdown or the pharmacological inhibition of MEK hampers KRAS-driven colorectal liver metastasis in our animal model studies. From a translational perspective, the identification of this KRAS-driven pathway might provide a mechanistic rationale for the use of a MEK inhibitor as an adjuvant, in combination with standard of care, to prevent the recurrence of colorectal liver metastasis in KRAS mutant CRC patients after receiving liver resection, which warrants further investigation.
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Affiliation(s)
- Po-Chen Chu
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
- Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, 40402, Taichung, Taiwan
| | - Peng-Chan Lin
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Hsing-Yu Wu
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, 10617, Taipei, Taiwan
| | - Kuen-Tyng Lin
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
| | - Christina Wu
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Tanios Bekaii-Saab
- Mayo Clinic College of Medicine and Science, Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, AZ, 85054, USA
| | - Yih-Jyh Lin
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Chung-Ta Lee
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Jeng-Chang Lee
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Ching-Shih Chen
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan.
- Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, 40402, Taichung, Taiwan.
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, 10617, Taipei, Taiwan.
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28
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Gao S, Zhao ZY, Wu R, Zhang Y, Zhang ZY. Prognostic value of microRNAs in colorectal cancer: a meta-analysis. Cancer Manag Res 2018; 10:907-929. [PMID: 29750053 PMCID: PMC5935085 DOI: 10.2147/cmar.s157493] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Numerous studies have shown that miRNA levels are closely related to the survival time of patients with colon, rectal, or colorectal cancer (CRC). However, the outcomes of different investigations have been inconsistent. Accordingly, a meta-analysis was conducted to study associations among the three types of cancers. Materials and methods Studies published in English that estimated the expression levels of miRNAs with survival curves in CRC were identified until May 20, 2017 by online searches in PubMed, Embase, Web of Science, and the Cochrane Library by two independent authors. Pooled HRs with 95% CIs were used to estimate the correlation between miRNA expression and overall survival. Results A total of 63 relevant articles regarding 13 different miRNAs, with 10,254 patients were ultimately included. CRC patients with high expression of blood miR141 (HR 2.52, 95% CI 1.68-3.77), tissue miR21 (HR 1.31, 95% CI 1.12-1.53), miR181a (HR 1.52, 95% CI 1.26-1.83), or miR224 (HR 2.12, 95% CI 1.04-4.34), or low expression of tissue miR126 (HR 1.55, 95% CI 1.24-1.93) had significantly poor overall survival (P<0.05). Conclusion In general, blood miR141 and tissue miR21, miR181a, miR224, and miR126 had significant prognostic value. Among these, blood miR141 and tissue miR224 were strong biomarkers of prognosis for CRC.
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Affiliation(s)
- Song Gao
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Zhi-Ying Zhao
- School of Computer Science and Engineering, Northeastern University, Shenyang
| | - Rong Wu
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Yue Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhen-Yong Zhang
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
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Andres SF, Williams KN, Rustgi AK. The Molecular Basis of Metastatic Colorectal Cancer. CURRENT COLORECTAL CANCER REPORTS 2018; 14:69-79. [PMID: 30237756 PMCID: PMC6141197 DOI: 10.1007/s11888-018-0403-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Metastatic colorectal cancer (CRC) is a vexing clinical problem. In contrast to early stage disease, once CRC metastasizes to other organs, long-term survival is compromised. We seek to review the molecular pathogenesis, animal models, and functional genomics for an enhanced understanding of how CRC metastasizes and how this can be exploited therapeutically. RECENT FINDINGS Mouse models may recapitulate certain aspects of metastatic human CRC and allow for studies to identify regulators of metastasis. Modulation of transcription factors, onco-proteins, or tumor suppressors have been identified to activate known metastatic pathways. CD44 variants, microRNAs and RNA binding proteins are emerging as metastatic modulators. SUMMARY CRC metastasis is a multi-faceted and heterogeneous disease. Despite common pathways contributing to metastatic development, there are numerous variables that modulate metastatic signals in subsets of patients. It is paramount that studies continue to investigate metastatic drivers, enhancers and inhibitors in CRC to develop therapeutic targets and improve disease outcomes.
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Affiliation(s)
- Sarah F Andres
- Division of Gastroenterology, Department of Medicine, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Kathy N Williams
- Division of Gastroenterology, Department of Medicine, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Anil K Rustgi
- Division of Gastroenterology, Department of Medicine, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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30
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Fasihi A, M. Soltani B, Atashi A, Nasiri S. Introduction of
hsa‐miR‐103a
and
hsa‐miR‐1827
and
hsa‐miR‐137
as new regulators of Wnt signaling pathway and their relation to colorectal carcinoma. J Cell Biochem 2018; 119:5104-5117. [DOI: 10.1002/jcb.26357] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/15/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Ali Fasihi
- Molecular Genetics DepartmentFaculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Bahram M. Soltani
- Molecular Genetics DepartmentFaculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Amir Atashi
- Hematology DepartmentFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Shirzad Nasiri
- Tehran University of Medical SciencesShariati HospitalTehranIran
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31
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Zhang LL, Zhang LF, Shi YB. miR-24 inhibited the killing effect of natural killer cells to colorectal cancer cells by downregulating Paxillin. Biomed Pharmacother 2018; 101:257-263. [PMID: 29494963 DOI: 10.1016/j.biopha.2018.02.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 02/07/2018] [Accepted: 02/09/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To identify the molecular mechanism that modulates the killing effect of natural killer (NK) cells to colorectal cancer cells. MATERIALS AND METHODS Expressions of miR-24 and Paxillin were detected by qRT-PCR and Western blot. Secretions of IFN-γ and TNF-α were measured by ELISA. The killing effect of NK cells was detected by CytoTox 96 non-radioactive cytotoxicity assay. Luciferase reporter assay was conducted to confirm the regulation of miR-24 on Paxillin. RESULTS miR-24 was overexpressed in NK cells from patients with colorectal cancer than healthy volunteers. Secretions of IFN-γ and TNF-α in activated NK cells were significantly increased, indicating the enhancement of the killing effect of NK cells. Paxillin expression was overexpressed in activated NK cells. Interference of Paxillin significantly decreased Paxillin expression, secretions of IFN-γ and TNF-α, and the killing effect of NK cells to colorectal cancer cells. In addition, we confirmed that Paxillin was a direct target of miR-24, and miR-24 was negatively correlated with Paxillin. Moreover, overexpression of miR-24 inhibited secretions of IFN-γ and TNF-α, and decreased cytotoxicity by downregulating Paxillin expression. Finally, we observed that overexpression of Paxillin significantly decreased tumor volume of colorectal cancer. CONCLUSION Overexpression of miR-24 supressed the killing effect of NK cells to colorectal cancer cells by downregulating Paxillin expression.
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Affiliation(s)
- Ling-Li Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Lian-Feng Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yun-Bo Shi
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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32
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Huang YC, Lee CT, Lee JC, Liu YW, Chen YJ, Tseng JT, Kang JW, Sheu BS, Lin BW, Hung LY. Epigenetic silencing of miR-137 contributes to early colorectal carcinogenesis by impaired Aurora-A inhibition. Oncotarget 2018; 7:76852-76866. [PMID: 27764771 PMCID: PMC5363554 DOI: 10.18632/oncotarget.12719] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 10/12/2016] [Indexed: 12/22/2022] Open
Abstract
MicorRNA-137 is silenced in human colorectal cancer tissues and colon polyps. Our study showed that the decreased expression of miR-137 is significantly different in various types of polyp which maintain different potentials to lead to CRC development. The expression of miR-137 gradually decreases during the process of colorectal carcinogenesis. Receiver operating characteristic curve (ROC) analysis indicates that the loss of miR-137 expression in colon polyps can serve as a biomarker to predict the predisposition of colorectal carcinogenesis. By cell model and xenograft animal model, the enforced expression of miR-137 in colorectal cancer cells can inhibit cell proliferation and tumor formation, induce G2/M arrest, and lead to apoptosis. The expression pattern of miR-137 and Aurora-A or PTGS2 is negatively correlated in human colorectal cancer tissues and colon polyps. Those effects induced by overexpressed miR-137 can be rescued by the overexpression of Aurora-A. In summary, our study suggests that the loss of miR-137 expression in colon polyps can serve as a biomarker to predict the tendency toward to CRC formation through the impaired inhibitory effect of Aurora-A. The investigation of the regulatory mechanism of miR-137-mediated Aurora-A inhibition may shed new light on the early prognosis of cancer therapy for CRC in the future.
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Affiliation(s)
- Yu-Chuan Huang
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Chung-Ta Lee
- Department of Pathology, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Jenq-Chang Lee
- Department of Surgery, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Yao-Wen Liu
- Department of Pathology, Kuo General Hospital, Tainan 70054, Taiwan
| | - Ying-Jen Chen
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Joseph T Tseng
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan.,Department of Biotechnology and Bioindustry Sciences, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Jui-Wen Kang
- Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Bor-Shyang Sheu
- Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Bo-Wen Lin
- Department of Surgery, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Liang-Yi Hung
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan.,Department of Biotechnology and Bioindustry Sciences, National Cheng-Kung University, Tainan 70101, Taiwan.,Center for Infectious Disease and Signal Transduction Research, College of Medicine, National Cheng-Kung University, Tainan 70101, Taiwan.,Institute for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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33
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Shen H, Wang L, Ge X, Jiang CF, Shi ZM, Li DM, Liu WT, Yu X, Shu YQ. MicroRNA-137 inhibits tumor growth and sensitizes chemosensitivity to paclitaxel and cisplatin in lung cancer. Oncotarget 2018; 7:20728-42. [PMID: 26989074 PMCID: PMC4991488 DOI: 10.18632/oncotarget.8011] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 02/14/2016] [Indexed: 12/21/2022] Open
Abstract
Chemotherapy resistance frequently drives tumour progression. However, the underlying molecular mechanisms are poorly characterized. In this study, we explored miR-137's role in the chemosensitivity of lung cancer. We found that the expression level of miR-137 is down-regulated in the human lung cancer tissues and the resistant cells strains: A549/paclitaxel(A549/PTX) and A549/cisplatin (A549/CDDP) when compared with lung cancer A549 cells. Moreover, we found that overe-expression of miR-137 inhibited cell proliferation, migration, cell survival and arrest the cell cycle in G1 phase in A549/PTX and A549/CDDP. Furthermore, Repression of miR-137 significantly promoted cell growth, migration, cell survival and cell cycle G1/S transition in A549 cells. We further demonstrated that the tumor suppressive role of miR-137 was mediated by negatively regulating Nuclear casein kinase and cyclin-dependent kinase substrate1(NUCKS1) protein expression. Importantly, miR-137 inhibits A549/PTX, A549/CDDP growth and angiogenesis in vivo. Our study is the first to identify the tumor suppressive role of over-expressed miR-137 in chemosensitivity. Identification of a novel miRNA-mediated pathway that regulates chemosensitivity in lung cancer will facilitate the development of novel therapeutic strategies in the future.
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Affiliation(s)
- Hua Shen
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Lin Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Department of Pathology, and Cancer Center, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Xin Ge
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Department of Pathology, and Cancer Center, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Cheng-Fei Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Department of Pathology, and Cancer Center, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Zhu-Mei Shi
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Dong-Mei Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Department of Pathology, and Cancer Center, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Wei-Tao Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Department of Pathology, and Cancer Center, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Xiaobo Yu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Minhang, Shanghai, 200080, China
| | - Yong-Qian Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.,Collaborative Innovation Center for Cancer Medicine, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
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34
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Liu Q, Wang J, Tang M, Chen L, Qi X, Li J, Yu J, Qiu H, Wang Y. The overexpression of PXN promotes tumor progression and leads to radioresistance in cervical cancer. Future Oncol 2018; 14:241-253. [PMID: 29318915 DOI: 10.2217/fon-2017-0474] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM We aim to investigate the functions of PXN in cervical cancer. MATERIALS & METHODS PXN protein was investigated by immunohistochemistry in a panel of cervical cancer. A series of in vitro and in vivo assays were used to explore the efficacy of PXN. RESULTS PXN was significantly upregulated in cervical cancer, which associated with tumor stage, poor differentiation, lymphovascular space invasion and lymphatic metastasis. Knockdown of PXN notably impaired cellular growth and colony formation by suppressing Bcl-2 and inducing marked apoptosis. Moreover, PXN led to resistance to radiation, and downregulation of PXN resensitized C33A cells to radiation. CONCLUSION PXN was frequently upregulated and acted as an oncogene via regulating Bcl-2 in cervical cancer, which supports PXN as a potent therapeutic target.
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Affiliation(s)
- Qiuli Liu
- Department of Obstetrics & Gynecology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Jing Wang
- Department of Obstetrics & Gynecology, Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University, Yantai 264000, China
| | - Mei Tang
- Department of Obstetrics & Gynecology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Ling Chen
- Department of Obstetrics & Gynecology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Xiaowei Qi
- Department of Pathology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Juan Li
- Department of Obstetrics and Gynecology, Wuxi Hospital For Maternal & Child Health Care, Wuxi 214062, China
| | - Jinjin Yu
- Department of Obstetrics & Gynecology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Haifeng Qiu
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Yuan Wang
- Department of Obstetrics & Gynecology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China
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35
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Cui S, Sun Y, Liu Y, Liu C, Wang J, Hao G, Sun Q. MicroRNA‑137 has a suppressive role in liver cancer via targeting EZH2. Mol Med Rep 2017; 16:9494-9502. [PMID: 29152663 PMCID: PMC5780008 DOI: 10.3892/mmr.2017.7828] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 06/23/2017] [Indexed: 12/19/2022] Open
Abstract
A variety of microRNAs (miRs) have been demonstrated to be associated with the development and malignant progression of human cancer; however, the regulatory mechanism of miR-137 underlying hepatocellular carcinoma (HCC) growth and metastasis still remains to be fully revealed. In the present study, reverse transcription-quantitative polymerase chain reaction and western blot were used to examine mRNA and protein expression. MTT assay, wound healing assay and Transwell assay were performed to determine cell proliferation, migration and invasion. Luciferase reporter assay was conducted to confirm the targeting relationship. miR-137 was significantly downregulated in HCC tissues compared to adjacent normal tissues. Low expression of miR-137 was significantly associated with lymph node metastasis, vein invasion, advanced clinical stage and poor prognosis in HCC. In addition, miR-137 was also downregulated in several liver cancer cell lines compared with normal liver epithelial cells. Overexpression of miR-137 led to a significant reduction in cell proliferation, migration and invasion of HepG2 cells. Enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2) was further identified as a direct target gene of miR-137, and the protein expression of EZH2 was negatively regulated by miR-137 in HepG2 cells. Additionally, EZH2 was significantly upregulated in HCC tissues and liver cancer cell lines. Furthermore, overexpression of EZH2 significantly eliminated the inhibitory effects of miR-137 on the malignant phenotypes of HepG2 cells. Therefore, the findings suggest that miR-137 may have a suppressive role in HCC growth and metastasis via targeting EZH2.
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Affiliation(s)
- Shichang Cui
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Yanlei Sun
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Yang Liu
- Department of Obstetrics and Gynecology, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Chengbiao Liu
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Jinbao Wang
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Guang Hao
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
| | - Qidong Sun
- Department of General Surgery, Central Hospital of Linyi, Linyi, Shandong 276400, P.R. China
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36
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Chen DL, Lu YX, Zhang JX, Wei XL, Wang F, Zeng ZL, Pan ZZ, Yuan YF, Wang FH, Pelicano H, Chiao PJ, Huang P, Xie D, Li YH, Ju HQ, Xu RH. Long non-coding RNA UICLM promotes colorectal cancer liver metastasis by acting as a ceRNA for microRNA-215 to regulate ZEB2 expression. Am J Cancer Res 2017; 7:4836-4849. [PMID: 29187907 PMCID: PMC5706103 DOI: 10.7150/thno.20942] [Citation(s) in RCA: 234] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 08/20/2017] [Indexed: 12/19/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are involved in the pathology of various tumors, including colorectal cancer (CRC). However, the role of lncRNA in CRC liver metastasis remains unclear. Methods: a microarray was performed to identify the differentially expressed lncRNAs between CRC tissues with and without liver metastasis. Survival analysis was evaluated using the Kaplan-Meier method and assessed using the log-rank test. In vitro and in vivo assays were preformed to explore the biological effects of the differentially expressed lncRNA in CRC cells. Results: the lncRNA UICLM (up-regulated in colorectal cancer liver metastasis) was significantly up-regulated in cases of CRC with liver metastasis. Moreover, UICLM expression was higher in CRC tissues than in normal tissues, and UICLM expression was associated with poor patient survival. Knockdown of UICLM inhibited CRC cell proliferation, invasion, epithelial-mesenchymal transition (EMT) and CRC stem cell formation in vitro as well as tumor growth and liver metastasis in vivo. Ectopic expression of UICLM promoted CRC cell proliferation and invasion. Mechanistic investigations revealed that UICLM induced its biological effects by regulating ZEB2, as the oncogenesis facilitated by UICLM was inhibited by ZEB2 depletion. Further study indicated that UICLM acted as a competing endogenous RNA (ceRNA) for miR-215 to regulate ZEB2 expression. Conclusions: taken together, our findings demonstrate how UICLM induces CRC liver metastasis and may offer a novel prognostic marker and therapeutic target for this disease.
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37
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Zhang GJ, Li LF, Yang GD, Xia SS, Wang R, Leng ZW, Liu ZL, Tian HP, He Y, Meng CY, Liu DZ, Hou SL, Tang XG, Zhou T. MiR-92a promotes stem cell-like properties by activating Wnt/β-catenin signaling in colorectal cancer. Oncotarget 2017; 8:101760-101770. [PMID: 29254202 PMCID: PMC5731912 DOI: 10.18632/oncotarget.21667] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 09/18/2017] [Indexed: 12/11/2022] Open
Abstract
We previously reported the oncogenic function of miR-92a in colorectal cancer. This study identified that miR-92a was upregulated in chemoresistant colorectal cancer cells and tissues. Ectopic expression of miR-92a conferred resistance to 5-fluorouracil-induced apoptosis in vitro, while antagomiR-92a significantly enhanced chemosensitivity in vivo. Moreover, Overexpression of miR-92a promoted the tumor sphere formation and the expression of stem cell markers. MiR-92a overexpression also displayed higher tumourigenesis in vivo. Furthermore, we demonstrated that miR-92a upregulates the Wnt/β-catenin signaling activity via directly targeting KLF4, GSK3β and DKK3, which are multiple level negative regulators of the Wnt/β-catenin signaling cascade. In addition, our results indicate IL-6/STAT3 pathway increases miR-92a expression by directly targeting its promoter, resulting in Wnt/β-catenin signaling activation and consequent promotion of stem-like phenotypes of colorectal cancer cells. Our present results suggest the essential role of IL-6/STAT3/miR-92a/Wnt/β-catenin pathway in regulating the stem cell-like traits of colorectal cancer cells and provide a potential target for colorectal cancer therapy.
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Affiliation(s)
- Guang-Jun Zhang
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Li-Fa Li
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Guo-Dong Yang
- Department of Gastroenterology, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shu-Sen Xia
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Rong Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, China
| | - Zheng-Wei Leng
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Zuo-Liang Liu
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hong-Peng Tian
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yi He
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Chang-Yuan Meng
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Dai-Zhi Liu
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Song-Lin Hou
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xue-Gui Tang
- Anorectal Department of Integrated Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Tong Zhou
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.,Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
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38
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吴 杰, 霍 继, 王 东, 汪 春, 吕 梁. [Expression of Wnt and integrin pathways in colorectal laterally spreading tumors and their correlation with endoscopic subtypes]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:1234-1241. [PMID: 28951368 PMCID: PMC6765489 DOI: 10.3969/j.issn.1673-4254.2017.09.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the expression of Wnt and integrin pathways in colorectal laterally spreading tumors (LSTs) and their correlation with the different endoscopic subtypes of LSTs to better understand the special growth mechanism of LSTs. METHODS Fifty-two patients with colorectal LSTs were randomly selected from the cases diagnosed between January 1, 2010 and June 10, 2015 in our hospital, including 37 of nodular mixed type (LST-G-M), 60 of homogeneous type (LST-G-H), 5 of flat elevated type (LST-NG-FE), and 4 of pseudodepressed type (LST-NG-PD). The expression of β-catenin, phospho- GSK-3β, paxillin and ILK in 52 colorectal LSTs and 15 protruded adenomas (PAs) were investigated by immunohistochemical staining. The correlation of β-catenin, phospho-GSK-3β, paxillin and ILK expressions among the endoscopic subtypes of LSTs were analyzed. RESULTS β-catenin expression was significantly higher in LSTs than in Pas (P<0.05). β-catenin, phospho-GSK-3β, paxillin and ILK expressions were significantly higher in LST-NG-PD than in Pas (P<0.05). The expressions of β-catenin, phospho-GSK-3β and ILK expression were significantly correlated in LSTs (P<0.05) but not in PAs (P>0.05). CONCLUSION The macroscopic feature of LST-NG-PD may result from a special mechanism of development distinct from other endoscopic subtypes; ILK may play a role in regulating Wnt signaling in LSTs.
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Affiliation(s)
- 杰 吴
- />中南大学湘雅二医院消化内科,湖南 长沙 410011Department of Gastroenterology, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - 继荣 霍
- />中南大学湘雅二医院消化内科,湖南 长沙 410011Department of Gastroenterology, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - 东 王
- />中南大学湘雅二医院消化内科,湖南 长沙 410011Department of Gastroenterology, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - 春莲 汪
- />中南大学湘雅二医院消化内科,湖南 长沙 410011Department of Gastroenterology, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - 梁 吕
- />中南大学湘雅二医院消化内科,湖南 长沙 410011Department of Gastroenterology, Second Xiangya Hospital of Central South University, Changsha 410011, China
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Cascão R, Vidal B, Jalmari Finnilä MA, Lopes IP, Teixeira RL, Saarakkala S, Moita LF, Fonseca JE. Effect of celastrol on bone structure and mechanics in arthritic rats. RMD Open 2017; 3:e000438. [PMID: 28955491 PMCID: PMC5604704 DOI: 10.1136/rmdopen-2017-000438] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 07/17/2017] [Accepted: 07/28/2017] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is characterised by chronic inflammation leading to articular bone and cartilage damage. Despite recent progress in RA management, adverse effects, lack of efficacy and economic barriers to treatment access still limit therapeutic success. Therefore, safer and less expensive treatments that control inflammation and bone resorption are needed. We have previously shown that celastrol is a candidate for RA treatment. We have observed that it inhibits both interleukin (IL)-1β and tumor necrosis factor (TNF) in vitro, and that it has anti-inflammatory properties and ability to decrease synovial CD68+ macrophages in vivo. Herein our goal was to evaluate the effect of celastrol in local and systemic bone loss. METHODS Celastrol was administrated intraperitoneally at a dose of 1 µg/g/day to female Wistar adjuvant-induced arthritic rats. Rats were sacrificed after 22 days of disease progression, and blood, femurs, tibiae and paw samples were collected for bone remodelling markers quantification, 3-point bending test, micro-CT analysis, nanoindentation and Fourier transform infrared spectroscopy measurements, and immunohistochemical evaluation. RESULTS We have observed that celastrol preserved articular structures and decreased the number of osteoclasts and osteoblasts present in arthritic joints. Moreover, celastrol reduced tartrate-resistant acid phosphatase 5b, procollagen type 1 amino-terminal propeptide and C terminal crosslinked telopeptide of type II collagen serum levels. Importantly, celastrol prevented bone loss and bone microarchitecture degradation. Celastrol also preserved bone nanoproperties and mineral content. Additionally, animals treated with celastrol had less fragile bones, as depicted by an increase in maximum load and yield displacement. CONCLUSIONS These results suggest that celastrol reduces both bone resorption and cartilage degradation, and preserves bone structural properties.
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Affiliation(s)
- Rita Cascão
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Bruno Vidal
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mikko Arttu Jalmari Finnilä
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Applied Physics, University of Eastern Finland, Kuopio, Finland
| | - Inês Pascoal Lopes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Rui Lourenço Teixeira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Department of Rheumatology, Centro Hospitalar de Lisboa Norte, EPE, Hospital de Santa Maria, Lisbon Academic Medical Centre, Lisbon, Portugal
| | - Simo Saarakkala
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | | | - João Eurico Fonseca
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Department of Rheumatology, Centro Hospitalar de Lisboa Norte, EPE, Hospital de Santa Maria, Lisbon Academic Medical Centre, Lisbon, Portugal
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Chen DL, Chen LZ, Lu YX, Zhang DS, Zeng ZL, Pan ZZ, Huang P, Wang FH, Li YH, Ju HQ, Xu RH. Long noncoding RNA XIST expedites metastasis and modulates epithelial-mesenchymal transition in colorectal cancer. Cell Death Dis 2017; 8:e3011. [PMID: 28837144 PMCID: PMC5596599 DOI: 10.1038/cddis.2017.421] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 02/07/2023]
Abstract
Tumor progression and metastasis is the main cause of death in colorectal cancer (CRC). Long noncoding RNAs (lncRNAs) are critical regulators in various diseases including human cancer. In this study, we found that lncRNA XIST was overexpressed in CRC cell lines and tissues. High expression of lncRNA XIST was associated with adverse overall survival in CRC patients. Knockdown of lncRNA XIST remarkably inhibited CRC cell proliferation, invasion, epithelial–mesenchymal transition (EMT) and CRC stem cell formation in vitro as well as tumor growth and metastasis in vivo. Further study indicated that knockdown of lncRNA XIST markedly increased the expression of microRNA-200b-3p (miR-200b-3p) that has been found to be downregulated in CRC tissues and cell lines, and luciferase activity assay indicated that lncRNA XIST could bind directly with miR-200b-3p. Moreover, knockdown of lncRNA XIST significantly reduced the expression of ZEB1, which was the direct target of miR-200b-3p, and the tumor suppressive effects caused by knockdown of lncRNA XIST could be rescued by re-expression of ZEB1 in CRC cells. Overall, our study demonstrated how lncRNA XIST regulates CRC progression and metastasis by competing for miR-200b-3p to modulate the expression of ZEB1. lncRNA XIST may be used as a biomarker to predict prognosis in CRC patients.
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Affiliation(s)
- Dong-Liang Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Le-Zong Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yun-Xin Lu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dong-Sheng Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhao-Lei Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhi-Zhong Pan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Peng Huang
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Feng-Hua Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yu-Hong Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Huai-Qiang Ju
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rui-Hua Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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MicroRNA-761 promotes the sensitivity of colorectal cancer cells to 5-Fluorouracil through targeting FOXM1. Oncotarget 2017; 9:321-331. [PMID: 29416616 PMCID: PMC5787468 DOI: 10.18632/oncotarget.20109] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 07/25/2017] [Indexed: 12/14/2022] Open
Abstract
Resistance to chemotherapy is a big challenge for treatment of patients with colorectal cancer; however; the mechanism underlying chemoresistance in colorectal cancer cell has not been elucidated. MicroRNAs (miRNAs) are new players in the development of drug chemoresistance. In our study, we indicated that overexpression of miR-761 promoted the sensitivity of colorectal cancer cells to 5-Fluorouracil (5-FU). miR-761 expression was downregulated in colorectal cancer cell lines and tissues. miR-761 expression was lower in patients with low grade than in patients with high grade. In additon, we showed that elevated expression of miR-761 suppressed colorectal cancer cell proliferation, cell cycle, colony formation and cell invasion. We identified that FOXM1 was a direct target gene of miR-761 in colorectal cancer cell. FOXM1 expression was upregulated in colorectal cancer tissues compare to the adjacent non-tumor tissues. MiR-761 expression was negatively associated with the expression of FOXM1 in colorectal cancer tissues. Elevated expression of FOXM1 suppressed the sensitivity of miR-761-overexpressing HT29 cells to 5-FU. We also indicated that FOXM1 overexpression promoted cell proliferation, cycle and invasion of miR-761-overexpressing HT29 cells. These data suggested that miR-761 played a tumor suppressor miRNA in colorectal cancer progression and reduced miR-761 expression might be a major mechanism for 5-FU resistance in colorectal cancer cell.
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Yuan JH, Liu XN, Wang TT, Pan W, Tao QF, Zhou WP, Wang F, Sun SH. The MBNL3 splicing factor promotes hepatocellular carcinoma by increasing PXN expression through the alternative splicing of lncRNA-PXN-AS1. Nat Cell Biol 2017; 19:820-832. [PMID: 28553938 DOI: 10.1038/ncb3538] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/25/2017] [Indexed: 02/07/2023]
Abstract
Understanding the roles of splicing factors and splicing events during tumorigenesis would open new avenues for targeted therapies. Here we identify an oncofetal splicing factor, MBNL3, which promotes tumorigenesis and indicates poor prognosis of hepatocellular carcinoma patients. MBNL3 knockdown almost completely abolishes hepatocellular carcinoma tumorigenesis. Transcriptomic analysis revealed that MBNL3 induces lncRNA-PXN-AS1 exon 4 inclusion. The transcript lacking exon 4 binds to coding sequences of PXN mRNA, causes dissociation of translation elongation factors from PXN mRNA, and thereby inhibits PXN mRNA translation. In contrast, the transcript containing exon 4 preferentially binds to the 3' untranslated region of PXN mRNA, protects PXN mRNA from microRNA-24-AGO2 complex-induced degradation, and thereby increases PXN expression. Through inducing exon 4 inclusion, MBNL3 upregulates PXN, which mediates the pro-tumorigenic roles of MBNL3. Collectively, these data demonstrate detailed mechanistic links between an oncofetal splicing factor, a splicing event and tumorigenesis, and establish splicing factors and splicing events as potential therapeutic targets.
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Affiliation(s)
- Ji-Hang Yuan
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
| | - Xiao-Ning Liu
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
| | - Tian-Tian Wang
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
| | - Wei Pan
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
| | - Qi-Fei Tao
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Wei-Ping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Fang Wang
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
| | - Shu-Han Sun
- Department of Medical Genetics, Second Military Medical University, Shanghai 200433, China
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MicroRNA-192 regulates cell proliferation and cell cycle transition in acute myeloid leukemia via interaction with CCNT2. Int J Hematol 2017; 106:258-265. [PMID: 28409330 DOI: 10.1007/s12185-017-2232-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 04/02/2017] [Accepted: 04/04/2017] [Indexed: 12/24/2022]
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNAs approximately 18-22 nucleotides in length, which play an important role in malignant transformation. The roles of miR-192 as an oncogene or tumor suppressor in solid tumors have been previously reported. However, little is known about the role of miR-192 in human acute myeloid leukemia. The results of the present study indicate that miR-192 is significantly downregulated in specimens from acute myeloid leukemia patients. Functional assays demonstrated that overexpression of miR-192 in NB4 and HL-60 cells significantly inhibited cell proliferation compared with that in control cells, and induced G0/G1 cell cycle arrest, cell differentiation, and apoptosis in vitro. Dual-luciferase reporter gene assays showed that miR-192 significantly suppressed the activity of a reporter gene containing the wild type 3'-UTR of CCNT2, but it did not suppress the activity of a reporter gene containing mutated 3'-UTR of CCNT2. QRT-PCR and Western blot assays showed that miR-192 significantly downregulated the expression of CCNT2 in human leukemia cells. Exogenous expression of CCNT2 attenuated the cell cycle arrest induced by miR-192 in NB4 and HL-60 cells. Collectively, miR-192 inhibits cell proliferation and induces G0/G1 cell cycle arrest in AML by regulating the expression of CCNT2.
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Mei Y, Yang JP, Qian CN. For robust big data analyses: a collection of 150 important pro-metastatic genes. CHINESE JOURNAL OF CANCER 2017; 36:16. [PMID: 28109319 PMCID: PMC5251273 DOI: 10.1186/s40880-016-0178-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/03/2016] [Indexed: 02/08/2023]
Abstract
Metastasis is the greatest contributor to cancer-related death. In the era of precision medicine, it is essential to predict and to prevent the spread of cancer cells to significantly improve patient survival. Thanks to the application of a variety of high-throughput technologies, accumulating big data enables researchers and clinicians to identify aggressive tumors as well as patients with a high risk of cancer metastasis. However, there have been few large-scale gene collection studies to enable metastasis-related analyses. In the last several years, emerging efforts have identified pro-metastatic genes in a variety of cancers, providing us the ability to generate a pro-metastatic gene cluster for big data analyses. We carefully selected 285 genes with in vivo evidence of promoting metastasis reported in the literature. These genes have been investigated in different tumor types. We used two datasets downloaded from The Cancer Genome Atlas database, specifically, datasets of clear cell renal cell carcinoma and hepatocellular carcinoma, for validation tests, and excluded any genes for which elevated expression level correlated with longer overall survival in any of the datasets. Ultimately, 150 pro-metastatic genes remained in our analyses. We believe this collection of pro-metastatic genes will be helpful for big data analyses, and eventually will accelerate anti-metastasis research and clinical intervention.
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Affiliation(s)
- Yan Mei
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Jun-Ping Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China. .,Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.
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Shekhar S, Angadi PV. Evaluation of paxillin expression in patients with oral squamous cell carcinoma: An immunohistochemical study. J Oral Maxillofac Pathol 2017; 21:318-319. [PMID: 28932050 PMCID: PMC5596691 DOI: 10.4103/jomfp.jomfp_98_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background: Oral squamous cell carcinoma (OSCC) is the tenth most common cancer in the world. The diagnosis of OSCC remains problematic, especially in advanced-stage tumors. Aims: The present study was conducted to understand the pattern of expression of paxillin in varying grades of carcinomas and also to ascertain whether its expression has an association with increasing grades. Methods: A total of ninety formalin-fixed paraffin-embedded tissues of OSCC were included in the study comprising thirty cases of each of well-differentiated squamous cell carcinomas, moderately differentiated squamous cell carcinomas (MDSCCs) and poorly differentiated squamous cell carcinomas (PDSCCs). The tissue sections were subjected to immunohistochemical staining of paxillin using super polymer-sensitive polymer 3,3’ diaminobenzidine detection kit. All the three groups were analyzed on various parameters including staining intensity, location and percentage of staining. SPSS 19.0 was used to analyze the data. Results: Paxillin stain positivity was observed in 95.5% of the cases. Predominant intense paxillin staining was demonstrated in 17 (56.6%) cases of well-differentiated squamous cell carcinoma, 28 (93.3%) cases of moderately differentiated squamous squamous cell carcinoma and 15 (50%) cases of PDSCC. A predominant cytoplasmic staining was observed in 21 (70%) cases of PDSCC and cytoplasmic plus membrane staining in 14 (46.6%) cases of MDSCC. Conclusion: The present study provides evidence that paxillin may be involved in the development and progression of OSCC. Thus, paxillin could be considered a useful biomarker for patient management and prognosis.
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Affiliation(s)
- Saurabh Shekhar
- Department of Oral Pathology and Microbiology, KLE University's VK Institute of Dental Sciences, KLE University, Belgaum, Karnataka, India
| | - Punnya V Angadi
- Department of Oral Pathology and Microbiology, KLE University's VK Institute of Dental Sciences, KLE University, Belgaum, Karnataka, India
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MicroRNA Regulation of Endothelial Junction Proteins and Clinical Consequence. Mediators Inflamm 2016; 2016:5078627. [PMID: 27999452 PMCID: PMC5143735 DOI: 10.1155/2016/5078627] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 11/03/2016] [Indexed: 12/18/2022] Open
Abstract
Cellular junctions play a critical role in structural connection and signal communication between cells in various tissues. Although there are structural and functional varieties, cellular junctions include tight junctions, adherens junctions, focal adhesion junctions, and tissue specific junctions such as PECAM-1 junctions in endothelial cells (EC), desmosomes in epithelial cells, and hemidesmosomes in EC. Cellular junction dysfunction and deterioration are indicative of clinical diseases. MicroRNAs (miRNA) are ~20 nucleotide, noncoding RNAs that play an important role in posttranscriptional regulation for almost all genes. Unsurprisingly, miRNAs regulate junction protein gene expression and control junction structure integrity. In contrast, abnormal miRNA regulation of junction protein gene expression results in abnormal junction structure, causing related diseases. The major components of tight junctions include zonula occluden-1 (ZO-1), claudin-1, claudin-5, and occludin. The miRNA regulation of ZO-1 has been intensively investigated. ZO-1 and other tight junction proteins such as claudin-5 and occludin were positively regulated by miR-126, miR-107, and miR21 in different models. In contrast, ZO-1, claudin-5, and occludin were negatively regulated by miR-181a, miR-98, and miR150. Abnormal tight junction miRNA regulation accompanies cerebral middle artery ischemia, brain trauma, glioma metastasis, and so forth. The major components of adherens junctions include VE-cadherin, β-catenin, plakoglobin, P120, and vinculin. VE-cadherin and β-catenin were regulated by miR-9, miR-99b, miR-181a, and so forth. These regulations directly affect VE-cadherin-β-catenin complex stability and further affect embryo and tumor angiogenesis, vascular development, and so forth. miR-155 and miR-126 have been shown to regulate PECAM-1 and affect neutrophil rolling and EC junction integrity. In focal adhesion junctions, the major components are integrin β4, paxillin, and focal adhesion kinase (FAK). Integrin β4 has been regulated by miR-184, miR-205, and miR-9. Paxillin has been regulated by miR-137, miR-145, and miR-218 in different models. FAK has been regulated by miR-7, miR-138, and miR-135. Deregulation of miRNAs is caused by viral infections, tumorigenesis, and so forth. By regulation of posttranscription, miRNAs manipulate junction protein expression in all cellular processes and further determine cellular fate and development. Elucidation of these regulatory mechanisms will become a new alternative therapy for many diseases, such as cancers and inflammatory diseases.
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microRNA-137 promotes apoptosis in ovarian cancer cells via the regulation of XIAP. Br J Cancer 2016; 116:66-76. [PMID: 27875524 PMCID: PMC5220146 DOI: 10.1038/bjc.2016.379] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/28/2016] [Accepted: 10/21/2016] [Indexed: 12/21/2022] Open
Abstract
Background: microRNAs (miRNAs) have regulatory roles in various cellular processes, including apoptosis. Recently, X-linked inhibitor of apoptosis protein (XIAP) has been reported to be dysregulated in epithelial ovarian cancer (EOC). However, the mechanism underlying this dysregulation is largely unknown. Methods: Using bioinformatics and a literature analysis, a panel of miRNAs dysregulated in EOC was chosen for further experimental confirmation from hundreds of miRNAs that were predicted to interact with the XIAP 3′UTR. A dual-luciferase reporter assay was employed to detect the interaction by cellular co-transfection of an miRNA expression vector and a reporter vector with the XIAP 3′UTR fused to a Renilla luciferase reporter. DAPI and TUNEL approaches were used to further determine the effects of an miR-137 mimic and inhibitor on cisplatin-induced apoptosis in ovarian cancer cells. Results: We identified eight miRNAs by screening a panel of dysregulated miRNAs that may target the XIAP 3′UTR. The strongest inhibitory miRNA, miR-137, suppressed the activity of a luciferase reporter gene fused with the XIAP 3′UTR and decreased the levels of XIAP protein in SKOV3 ovarian cancer cells. Furthermore, forced expression of miR-137 increased cisplatin-induced apoptosis, and the depressed expression of miR-137 decreased cisplatin-induced apoptosis in SKOV3 and primary EOC cells. Consistently, the disruption of miR-137 via CRISPR/Cas9 inhibited apoptosis and upregulated XIAP in A2780 cells. Furthermore, the effect of miR-137 on apoptosis could be rescued by XIAP in SKOV3 cells. In addition, miR-137 expression is inversely correlated with the level of XIAP protein in both ovarian cancer tissues and cell lines. Conclusions: Our data suggest that multiple miRNAs can regulate XIAP via its 3′UTR. miR-137 can sensitise ovarian cancer cells to cisplatin-induced apoptosis, providing new insight into overcoming drug resistance in ovarian cancer.
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48
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Lu TM, Lu W, Zhao LJ. MicroRNA-137 Affects Proliferation and Migration of Placenta Trophoblast Cells in Preeclampsia by Targeting ERRα. Reprod Sci 2016; 24:85-96. [DOI: 10.1177/1933719116650754] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Tan-Min Lu
- Department of Gynecology and Obstetrics, Liaocheng People’s Hospital, Liaocheng, China
| | - Wei Lu
- Department of Gynecology and Obstetrics, Liaocheng People’s Hospital, Liaocheng, China
| | - Long-Jun Zhao
- Department of Gynecology and Obstetrics, Liaocheng People’s Hospital, Liaocheng, China
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Fusté NP, Fernández-Hernández R, Cemeli T, Mirantes C, Pedraza N, Rafel M, Torres-Rosell J, Colomina N, Ferrezuelo F, Dolcet X, Garí E. Cytoplasmic cyclin D1 regulates cell invasion and metastasis through the phosphorylation of paxillin. Nat Commun 2016; 7:11581. [PMID: 27181366 PMCID: PMC4873647 DOI: 10.1038/ncomms11581] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 04/11/2016] [Indexed: 02/08/2023] Open
Abstract
Cyclin D1 (Ccnd1) together with its binding partner Cdk4 act as a transcriptional regulator to control cell proliferation and migration, and abnormal Ccnd1·Cdk4 expression promotes tumour growth and metastasis. While different nuclear Ccnd1·Cdk4 targets participating in cell proliferation and tissue development have been identified, little is known about how Ccnd1·Cdk4 controls cell adherence and invasion. Here, we show that the focal adhesion component paxillin is a cytoplasmic substrate of Ccnd1·Cdk4. This complex phosphorylates a fraction of paxillin specifically associated to the cell membrane, and promotes Rac1 activation, thereby triggering membrane ruffling and cell invasion in both normal fibroblasts and tumour cells. Our results demonstrate that localization of Ccnd1·Cdk4 to the cytoplasm does not simply act to restrain cell proliferation, but constitutes a functionally relevant mechanism operating under normal and pathological conditions to control cell adhesion, migration and metastasis through activation of a Ccnd1·Cdk4-paxillin-Rac1 axis.
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Affiliation(s)
- Noel P Fusté
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Rita Fernández-Hernández
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Tània Cemeli
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Cristina Mirantes
- Oncopathology Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Neus Pedraza
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Marta Rafel
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Jordi Torres-Rosell
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Neus Colomina
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Francisco Ferrezuelo
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Xavier Dolcet
- Oncopathology Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
| | - Eloi Garí
- Cell Cycle Lab, Institut de Recerca Biomèdica de Lleida (IRBLleida), and Departament de Ciències Mèdiques Bàsiques; Facultat de Medicina; Universitat de Lleida, 25198 Lleida, Catalonia, Spain
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Fibulin-4 is a novel Wnt/β-Catenin pathway activator in human osteosarcoma. Biochem Biophys Res Commun 2016; 474:730-735. [PMID: 27157136 DOI: 10.1016/j.bbrc.2016.05.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 05/04/2016] [Indexed: 12/29/2022]
Abstract
Fibulin-4, an extracellular glycoprotein implicated in connective tissue development and elastic fiber formation, draws increasing focuses in cancer research. However, little is known about the underlying oncogenic roles of Fibulin-4 in human osteosarcoma (OS). In this study, by immunohistochemical analysis, upregulated expression of Fibulin-4 was found in the OS clinical specimens and cell lines compared to their normal counterparts. Fibulin-4 was positively correlated with the T stage of OS patients, and the proliferation index Ki67. Based on informatics analysis and functional verification, microRNA-137 was identified as a potential upstream regulator of Fibulin-4. Knockdown of Fibulin-4 or introduction of microRNA-137 inhibited cell proliferation and promoted cell apoptosis, and adverse effects were observed by overexpression of Fibulin-4. Furthermore, the tumor-suppressive functions of microRNA-137 were markedly abolished by restoration of Fibulin-4 expression in OS cells. Mechanistically, Fibulin-4 activated Wnt/β-Catenin pathway and promoted the expression of its downstream targets, including CCND2, c-Myc and VEGF. Taken together, Fibulin-4 plays critical neoplastic roles in tumor growth of human OS by activating Wnt/β-Catenin signaling and may represent a potential therapeutic target.
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