1
|
An G, Park J, Song J, Hong T, Song G, Lim W. Relevance of the endoplasmic reticulum-mitochondria axis in cancer diagnosis and therapy. Exp Mol Med 2024; 56:40-50. [PMID: 38172597 PMCID: PMC10834980 DOI: 10.1038/s12276-023-01137-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 01/05/2024] Open
Abstract
Dynamic interactions between organelles are responsible for a variety of intercellular functions, and the endoplasmic reticulum (ER)-mitochondrial axis is recognized as a representative interorganelle system. Several studies have confirmed that most proteins in the physically tethered sites between the ER and mitochondria, called mitochondria-associated ER membranes (MAMs), are vital for intracellular physiology. MAM proteins are involved in the regulation of calcium homeostasis, lipid metabolism, and mitochondrial dynamics and are associated with processes related to intracellular stress conditions, such as oxidative stress and unfolded protein responses. Accumulating evidence has shown that, owing to their extensive involvement in cellular homeostasis, alterations in the ER-mitochondrial axis are one of the etiological factors of tumors. An in-depth understanding of MAM proteins and their impact on cell physiology, particularly in cancers, may help elucidate their potential as diagnostic and therapeutic targets for cancers. For example, the modulation of MAM proteins is utilized not only to target diverse intracellular signaling pathways within cancer cells but also to increase the sensitivity of cancer cells to anticancer reagents and regulate immune cell activities. Therefore, the current review summarizes and discusses recent advances in research on the functional roles of MAM proteins and their characteristics in cancers from a diagnostic perspective. Additionally, this review provides insights into diverse therapeutic strategies that target MAM proteins in various cancer types.
Collapse
Affiliation(s)
- Garam An
- Institute of Animal Molecular Biotechnology, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Junho Park
- Institute of Animal Molecular Biotechnology, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Jisoo Song
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Taeyeon Hong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
| | - Whasun Lim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| |
Collapse
|
2
|
Kamposioras K, Dinas PC, Barriuoso J, Trachana V, Dimas K. Caveolin-1 protein expression as a prognostic biomarker of gastrointestinal tumours: A systematic review and meta-analysis. Eur J Clin Invest 2023; 53:e14065. [PMID: 37497737 DOI: 10.1111/eci.14065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/02/2023] [Accepted: 07/08/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Gastrointestinal (GI) cancers remain a major threat worldwide, accounting for over 30% of cancer deaths. The identification of novel prognostic biomarkers remains a challenge despite significant advances in the field. The CAV1 gene, encoding the caveolin-1 protein, remains enigmatic in cancer and carcinogenesis, as it has been proposed to act as both a tumour promoter and a tumour suppressor. METHODS To analyse the differential role of caveolin-1 expression in both tumour cells and stroma in relation to prognosis in GI tumours, we performed a systematic review and meta-analysis according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines; PROSPERO registration number: CRD42022299148. RESULTS Our analysis showed that high levels of caveolin-1 in tumour cells were associated with poor prognosis and inferior overall survival (OS) in oesophageal and pancreatic cancer and hepatocellular carcinoma (HCC), but not in gastric and colorectal cancer. Importantly, our study showed that higher stromal caveolin-1 expression was associated with significantly longer OS and disease-free survival in colorectal cancer. Analysis of stromal caveolin-1 expression in the remaining tumours showed a similar trend, although it did not reach statistical significance. CONCLUSIONS The data suggest that caveolin-1 expression in the tumour cells of oesophageal, pancreatic cancer and HCC and in the stroma of colorectal cancer may be an important novel predictive biomarker for the clinical management of these diseases in a curative setting. However, the main conclusion of our analysis is that caveolin-1 expression should always be assessed separately in stroma and tumour cells.
Collapse
Affiliation(s)
| | - Petros C Dinas
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, Volos, Greece
| | - Jorge Barriuoso
- The Christie NHS Foundation Trust, Manchester, UK
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Varvara Trachana
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Volos, Greece
| | - Konstantinos Dimas
- Department of Pharmacology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Volos, Greece
| |
Collapse
|
3
|
Zmarzły N, Januszyk S, Mieszczański P, Czarniecka J, Bednarska-Czerwińska A, Boroń D, Oplawski M, Grabarek BO. The influence of selected microRNAs on the expression profile of genes and proteins related to the tumor necrosis factor-alpha signaling pathways in endometrioid endometrial cancer. J Cancer Res Clin Oncol 2023; 149:9679-9689. [PMID: 37233761 PMCID: PMC10423110 DOI: 10.1007/s00432-023-04863-3] [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: 02/21/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
PURPOSE Tumor necrosis factor exerts many adverse biological effects, from cell proliferation to cell death. Accurate diagnosis and treatment are therefore difficult due to many factors influencing tumor necrosis factor-alpha (TNF-α) signaling, including microRNAs (miRNAs), especially in tumors. The aim of the study was to determine the influence of miRNAs on the expression profile of genes and proteins related to TNF-α signaling in endometrial cancer. METHODS The material consisted of 45 endometrioid endometrial cancer and 45 normal endometrium tissue samples. Gene expression was determined with microarrays and then validated for TNF-α, tumor necrosis factor receptor 1 (TNFR1) and 2 (TNFR2), caveolin 1 (CAV1), nuclear factor kappa B subunit 1 (NFKB1), and TGF-beta activated kinase 1 (MAP3K7)-binding protein 2 (TAB2) using real-time quantitative reverse transcription reaction (RT-qPCR). The protein concentration was assessed by enzyme-linked immunosorbent assay (ELISA). In addition, differentiating miRNAs were identified using miRNA microarrays and their relationships with TNF-α signaling genes were evaluated using the mirDIP tool. RESULTS TNF-α, TNFR1, TNFR2, CAV1, NFKB1, and TAB2 were upregulated both on the mRNA and protein levels. The decrease in the activity of miR-1207-5p, miR-1910-3p, and miR-940 may be related to CAV1 overexpression. Similarly for miR-572 and NFKB1 as well as miR-939-5p and TNF-α. In turn, miR-3178 may partially inhibit TNFR1 activity up to grade 2 cancer. CONCLUSION TNF-α signaling, especially the TNF-α/NF-κB axis, is disrupted in endometrial cancer and worsens with disease progression. The observed changes may be the result of miRNAs' activity in the initial stage of endometrial cancer and its gradual loss in later grades.
Collapse
Affiliation(s)
- Nikola Zmarzły
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland.
- Department of Gynecology and Obstetrics, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland.
| | | | - Paweł Mieszczański
- Hospital of Ministry of Interior and Administration, 40-052, Katowice, Poland
| | - Justyna Czarniecka
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
| | - Anna Bednarska-Czerwińska
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
- Gyncentrum, Laboratory of Molecular Biology and Virology, 40-851, Katowice, Poland
- American Medical Clinic, 40-600, Katowice, Poland
| | - Dariusz Boroń
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
- Department of Gynecology and Obstetrics, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826, Kraków, Poland
- Department of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, 40-662, Katowice, Poland
| | - Marcin Oplawski
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826, Kraków, Poland
- Department of Gynecology and Obstetrics, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski University in Cracow, 30-705, Cracow, Poland
| | - Beniamin Oskar Grabarek
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
- Department of Gynecology and Obstetrics, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 41-800, Zabrze, Poland
- Gyncentrum, Laboratory of Molecular Biology and Virology, 40-851, Katowice, Poland
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826, Kraków, Poland
- Department of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, 40-662, Katowice, Poland
| |
Collapse
|
4
|
Tan Y, Song Q. Research trends and hotspots on the links between caveolin and cancer: bibliometric and visual analysis from 2003 to 2022. Front Pharmacol 2023; 14:1237456. [PMID: 37576808 PMCID: PMC10416243 DOI: 10.3389/fphar.2023.1237456] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/21/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction: Extensive studies indicated that caveolin is a key regulator in multiple cellular processes. Recently, growing evidence demonstrated that caveolin is critically involved in tumor progression. Since no relevant bibliometric study has been published, we performed a bibliometric and visual analysis to depict the knowledge framework of research related to the involvement of caveolin in cancer. Methods: Relevant studies published in English during 2003-2022 were obtained from the Web of Science Core Collection database. Three programs (VOSviewer, CiteSpace, and R-bibliometrix) and the website of bibliometrics (http://bibliometric.com/) were applied to construct networks based on the analysis of countries, institutions, authors, journals, references, and keywords. Results: A total of 2,463 documents were extracted and identified. The United States had the greatest number of publications and total citations, and Thomas Jefferson University was the most productive institution. Michael P. Lisanti was the most influential scholar in this research domain. Cell Cycle was the journal with the most publications on this subject. The most local-cited document was the article titled "Caveolin-1 in oncogenic transformation, cancer, and metastasis." A comprehensive analysis has been conducted based on keywords and cited references. Initially, the research frontiers were predominantly "signal transduction", "human breast cancer," "oncogenically transformed cells," "tumor suppressor gene," and "fibroblasts." While in recent years, the research emphasis has shifted to "tumor microenvironment," "epithelial mesenchymal transition," "nanoparticles," and "stem cells." Conclusion: Taken together, our bibliometric analysis shows that caveolin continues to be of interest in cancer research. The hotspots and research frontiers have evolved from the regulation of cancer signaling, to potential targets of cancer therapy and novel techniques. These results can provide a data-based reference for the guidance of future research.
Collapse
Affiliation(s)
- Yaqian Tan
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qi Song
- Department of Pharmacy, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
5
|
Moriconi C, Civita P, Neto C, Pilkington GJ, Gumbleton M. Caveolin-1, a Key Mediator Across Multiple Pathways in Glioblastoma and an Independent Negative Biomarker of Patient Survival. Front Oncol 2021; 11:701933. [PMID: 34490102 PMCID: PMC8417742 DOI: 10.3389/fonc.2021.701933] [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: 04/28/2021] [Accepted: 07/28/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GB) remains an aggressive malignancy with an extremely poor prognosis. Discovering new candidate drug targets for GB remains an unmet medical need. Caveolin-1 (Cav-1) has been shown to act variously as both a tumour suppressor and tumour promoter in many cancers. The implications of Cav-1 expression in GB remains poorly understood. Using clinical and genomic databases we examined the relationship between tumour Cav-1 gene expression (including its spatial distribution) and clinical pathological parameters of the GB tumour and survival probability in a TCGA cohort (n=155) and CGGA cohort (n=220) of GB patients. High expression of Cav-1 represented a significant independent predictor of shortened survival (HR = 2.985, 5.1 vs 14.9 months) with a greater statistically significant impact in female patients and in the Proneural and Mesenchymal GB subtypes. High Cav-1 expression correlated with other factors associated with poor prognosis: IDH w/t status, high histological tumour grade and low KPS score. A total of 4879 differentially expressed genes (DEGs) in the GB tumour were found to correlate with Cav-1 expression (either positively or negatively). Pathway enrichment analysis highlighted an over-representation of these DEGs to certain biological pathways. Focusing on those that lie within a framework of epithelial to mesenchymal transition and tumour cell migration and invasion we identified 27 of these DEGs. We then examined the prognostic value of Cav-1 when used in combination with any of these 27 genes and identified a subset of combinations (with Cav-1) indicative of co-operative synergistic mechanisms of action. Overall, the work has confirmed Cav-1 can serve as an independent prognostic marker in GB, but also augment prognosis when used in combination with a panel of biomarkers or clinicopathologic parameters. Moreover, Cav-1 appears to be linked to many signalling entities within the GB tumour and as such this work begins to substantiate Cav-1 or its associated signalling partners as candidate target for GB new drug discovery.
Collapse
Affiliation(s)
- Chiara Moriconi
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
- Department of Pathology and Cell Biology, Columbia University, New York Presbyterian Hospital, New York, NY, United States
| | - Prospero Civita
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
- Brain Tumour Research Centre, School of Pharmacy & Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Catia Neto
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| | - Geoffrey J. Pilkington
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
- Brain Tumour Research Centre, School of Pharmacy & Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
- Department of Basic and Clinical Neuroscience, Division of Neuroscience, Institute of Psychiatry & Neurology, King’s College London, London, United Kingdom
| | - Mark Gumbleton
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| |
Collapse
|
6
|
Chen X, Wang L, Yu X, Wang S, Zhang J. Caveolin-1 facilitates cell migration by upregulating nuclear receptor 4A2/retinoid X receptor α-mediated β-galactoside α2,6-sialyltransferase I expression in human hepatocarcinoma cells. Int J Biochem Cell Biol 2021; 137:106027. [PMID: 34157397 DOI: 10.1016/j.biocel.2021.106027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 06/04/2021] [Accepted: 06/16/2021] [Indexed: 12/24/2022]
Abstract
It has been reported that caveolin-1 (Cav-1) acts as a tumor promoter in hepatocellular carcinoma (HCC). Our previous studies showed that Cav-1 promoted mouse hepatocarcinoma cell adhesion to fibronectin by upregulating β-galactoside α2,6-sialyltransferase I (ST6Gal-I) expression. However, the detailed mechanism by which Cav-1 regulates ST6Gal-I is not fully understood. In this study, we found that the expression levels of Cav-1 and ST6Gal-I were increased in HCC tissues and correlated with poor prognosis. Cav-1 upregulated ST6Gal-I expression to promote the migration and invasion of HCC cells by inducing epithelial-to-mesenchymal transition. Importantly, the binding of the transcription factor nuclear receptor 4A2/retinoid X receptor alpha (NR4A2/RXRα) to the -550/-200 region of the ST6GAL1 promoter was critical for Cav-1-induced ST6GAL1 gene expression. Furthermore, Cav-1 expression activated the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway, followed by upregulation of NR4A2 expression and phosphorylation of RXRα, which facilitated the complex of NR4A2 and phosphorylated RXRα forming and binding to the ST6GAL1 promoter region to induce its transcription. Finally, in the diethylnitrosamine (DEN)-induced HCC murine model, the expression levels of NR4A2, p-RXRα, ST6Gal-I, and α2,6-linked sialic acid decreased in parallel in Cav-1-/- mice compared with Cav-1+/+ mice, which was consistent with the above in vitro results. These findings provide insight into the mechanism of ST6GAL1 gene transcription mediated by Cav-1, which may lead to the development of novel therapeutic strategies targeting metastasis in HCC.
Collapse
Affiliation(s)
- Xixi Chen
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Liping Wang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xiao Yu
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Jianing Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China.
| |
Collapse
|
7
|
Zakaria S, Nawaya R, Abdel-Hamid NM, Eldomany RA, El-Shishtawy MM. Targeting the HIF-1α/Cav-1 Pathway with a Chicory Extract/Daidzein Combination Plays a Potential Role in Retarding Hepatocellular Carcinoma. Curr Cancer Drug Targets 2021; 21:881-896. [PMID: 34382525 DOI: 10.2174/1568009621666210811121120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most rapidly growing solid cancers, that is characterized by hypoxia. Hypoxia-inducible factor-1α (HIF-1α) is a transcription factor that regulates tumor proliferation and metastasis. It induces caveolin-1 (Cav-1) expression, a glycoprotein found on the membrane surface, then Cav-1 triggers angiogenesis and metastasis in HCC. OBJECTIVE We hypothesize that targeting HIF-1α and consequently, Cav-1 using the antioxidant natural compound such as chicoric acid and a Cav-1 inhibitor daidzein (DAZ) could be a useful approach in the management of HCC. This study was conducted to investigate the possible therapeutic efficacy of standardized chicory leaf extract (SCLE) and DAZ via modulation of HIF-1α and Cav-1 in HCC rats. METHODS Diethyl nitrosamine (DENA) was used for HCC induction. After the induction period, four groups (10 rats for each) were treated with SCLE, DAZ, a combination of both, as well as sorafenib, all compared to the non-treated control. We assessed hepatic HIF-1α protein expression, Cav-1 gene expression, serum level of AFP, hepatic tissue content of VEGF, MMP-9, oxidative stress markers MDA and SOD. RESULTS DAZ, SCLE, and their combination, significantly down-regulated the expression of HIF-1α, Cav-1, and consequently dampened MMP-9, VEGF, hepatic content. It has been observed that the combination treatment showed a synergistic effect compared to either treatment alone. Importantly, the combination treatment exhibited a significantly more potent effect than sorafenib. CONCLUSION This study showed the potential role of the HIF-1α/Cav-1 pathway in HCC progression, moreover, SCLE and DAZ showed a potent efficacy in retarding HCC via modulation of this pathway.
Collapse
Affiliation(s)
- Sherin Zakaria
- Department of Pharmacology and Toxicology, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Reem Nawaya
- Department of Biochemistry, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Nabil M Abdel-Hamid
- Department of Biochemistry, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Ramadan A Eldomany
- Department of Microbiology and Immunology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Mamdouh M El-Shishtawy
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| |
Collapse
|
8
|
Feng Y, Jiang W, Zhao W, Lu Z, Gu Y, Dong Y. miR-124 regulates liver cancer stem cells expansion and sorafenib resistance. Exp Cell Res 2020; 394:112162. [PMID: 32640195 DOI: 10.1016/j.yexcr.2020.112162] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 02/06/2023]
Abstract
Liver cancer stem cells (CSCs) contribute to tumorigenesis, progression, recurrence and drug resistance of hepatocellular carcinoma (HCC). However, the underlying mechanism for liver CSCs expansion remains unclear. Herein, we report that miR-124 is downregulated in liver CSCs and associated with the poor prognosis of HCC. Functional studies revealed that a forced expression of miR-124 inhibits liver CSCs self-renew and tumorigenesis. Conversely, miR-124 knockdown promotes liver CSCs self-renew and tumorigenesis. Mechanistically, miR-124 directly target Caveolin-1 (CAV1) via its mRNA 3'UTR in liver CSCs. Furthermore, miR-124 expression determines the responses of hepatoma cells to sorafenib treatment. The analysis of patient cohort and patient-derived xenografts (PDXs) further demonstrated that miR-124 may predict sorafenib benefits in HCC patients. In conclusion, our findings revealed the crucial role of the miR-124 in liver CSCs expansion and sorafenib response, rendering miR-124 an optimal target for the prevention and intervention in HCC.
Collapse
Affiliation(s)
- Yun Feng
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Weiliang Jiang
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Wenman Zhao
- Department of General Surgery, Cao County People's Hospital, Heze, Shandong province, 274400, China
| | - Zhanjun Lu
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Yubei Gu
- Department of Gastroenterology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - Yuwei Dong
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China.
| |
Collapse
|
9
|
Caveolin-1 Knockdown Decreases SMMC7721 Human Hepatocellular Carcinoma Cell Invasiveness by Inhibiting Vascular Endothelial Growth Factor-Induced Angiogenesis. Can J Gastroenterol Hepatol 2020; 2020:8880888. [PMID: 32676485 PMCID: PMC7336196 DOI: 10.1155/2020/8880888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/03/2020] [Accepted: 06/08/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Recently, several studies have demonstrated that caveolin-1 overexpression is involved in apoptosis resistance, angiogenesis, and invasiveness in hepatocellular carcinoma (HCC). However, the mechanisms underlying caveolin-1-mediated tumor progression remain unclear. Methodogy. Lentiviral vectors were used to construct caveolin-1 small interfering RNA- (siRNA-) expressing cells. Secreted VEGF levels in SMMC7721 cells were evaluated by enzyme-linked immunosorbent assay (ELISA). SMMC7721 cell proliferation, cycle, apoptosis, and invasiveness were detected by MTT, flow cytometry, Annexin V-FITC/PI, and invasion assay, respectively. Phospho-eNOS levels in human umbilical vein endothelial cells (HUVECs) cocultured with SMMC7721 cell supernatants were analyzed by Western blot. Capillary-like tubule formation assay was performed to analyze endothelial tubular structure formation in HUVECs treated with supernatants from caveolin-1 siRNA-expressing SMMC7721 cells. SMMC7721 implantation and growth in nude mice were observed. Angiogenesis in vivo was analyzed by immunohistochemical angiogenesis assay. RESULTS Caveolin-1 siRNA-expressing SMMC7721 cells secreted reduced levels of VEGF. Caveolin-1 RNAi also caused an inhibition of SMMC7721 cell proliferation and cell cycle progression that was accompanied by increased apoptosis. Supernatants from caveolin-1 siRNA-expressing SMMC7721 cells inhibited cell cycle progression and decreased phospho-eNOS levels in HUVECs. Endothelial tubular structure formation in HUVECs treated with supernatants from caveolin-1 siRNA-expressing SMMC7721 cells was considerably reduced. Caveolin-1 siRNA-expressing SMMC7721 cells also showed reduced tumorigenicity and angiogenesis induction in vivo. CONCLUSION Our results reveal a novel mechanism, whereby caveolin-1 positively regulates human HCC cell invasiveness by coordinating VEGF-induced angiogenesis.
Collapse
|
10
|
Src-family kinase inhibitors block early steps of caveolin-1-enhanced lung metastasis by melanoma cells. Biochem Pharmacol 2020; 177:113941. [PMID: 32240650 DOI: 10.1016/j.bcp.2020.113941] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/26/2020] [Indexed: 02/08/2023]
Abstract
In advanced stages of cancer disease, caveolin-1 (CAV1) expression increases and correlates with increased migratory and invasive capacity of the respective tumor cells. Previous findings from our laboratory revealed that specific ECM-integrin interactions and tyrosine-14 phosphorylation of CAV1 are required for CAV1-enhanced melanoma cell migration, invasion and metastasis in vivo. In this context, CAV1 phosphorylation on tyrosine-14 mediated by non-receptor Src-family tyrosine kinases seems to be important; however, the effect of Src-family kinase inhibitors on CAV1-enhanced metastasis in vivo has not been studied. Here, we evaluated the effect of CAV1 and c-Abl overexpression, as well as the use of the Src-family kinase inhibitors, PP2 and dasatinib (more specific for Src/Abl) in lung metastasis of B16F10 melanoma cells. Overexpression of CAV1 and c-Abl enhanced CAV1 phosphorylation and the metastatic potential of the B16F10 murine melanoma cells. Alternatively, treatment with PP2 or dasatinib for 2 h reduced CAV1 tyrosine-14 phosphorylation and levels recovered fully within 12 h of removing the inhibitors. Nonetheless, pre-treatment of cells with these inhibitors for 2 h sufficed to prevent migration, invasion and trans-endothelial migration in vitro. Importantly, the transient decrease in CAV1 phosphorylation by these kinase inhibitors prevented early steps of CAV1-enhanced lung metastasis by B16F10 melanoma cells injected into the tail vein of mice. In conclusion, this study underscores the relevance of CAV1 tyrosine-14 phosphorylation by Src-family kinases during the first steps of the metastatic sequence promoted by CAV1. These findings open up potential options for treatment of metastatic tumors in patients in which Src-family kinase activation and CAV1 overexpression favor dissemination of cancer cells to secondary sites.
Collapse
|
11
|
Wang X, Lu B, Dai C, Fu Y, Hao K, Zhao B, Chen Z, Fu L. Caveolin-1 Promotes Chemoresistance of Gastric Cancer Cells to Cisplatin by Activating WNT/β-Catenin Pathway. Front Oncol 2020; 10:46. [PMID: 32117718 PMCID: PMC7008851 DOI: 10.3389/fonc.2020.00046] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/10/2020] [Indexed: 12/13/2022] Open
Abstract
Drug resistance is a major challenge for chemotherapy in treating human gastric cancer (GC), as the underlying molecular mechanism of chemoresistance in GC remains unknown. Caveolin-1 (Cav-1) is a scaffold protein of plasma membrane caveolae that acts as a tumor modulator by interacting with several cell signals. In this research, we showed that the survival rate of GC cells to cisplatin (CDDP) increased in the presence of Cav-1. Moreover, Cav-1 overexpression inhibited cisplatin-induced apoptosis and improved the survival rate of GC cells. Cav-1 overexpression and knock-down experiments indicated that Cav-1 expression stimulated wingless-type MMTV integration site (WNTs) pathway through the phosphorylation of LRP6 and dephosphorylation of β-catenin. Cav-1 was positively associated with the increase of WNT downstream target gene Met, which led to the activation of HER2 signaling. Moreover, our results demonstrated that the expression of Cav-1 and Met were positively associated with the resistance of GC cells to cisplatin. Collectively, Cav-1 enhances the cisplatin-resistance of GC cells by activating the WNT signaling pathway and Met-HER2 crosstalk. Understanding the role of Cav-1 in the chemoresistance of GC would help to develop novel therapies for a better treatment outcome of GC patients.
Collapse
Affiliation(s)
- Xi Wang
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bin Lu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China.,Department of Gastroenterology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Chunyan Dai
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yufei Fu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ke Hao
- Research Center of Blood Transfusion Medicine, Ministry of Education Key Laboratory of Laboratory Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Bing Zhao
- Department of Anesthesiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhe Chen
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li Fu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen University International Cancer Center, Shenzhen University School of Medicine, Shenzhen, China
| |
Collapse
|
12
|
Shi YB, Li J, Lai XN, Jiang R, Zhao RC, Xiong LX. Multifaceted Roles of Caveolin-1 in Lung Cancer: A New Investigation Focused on Tumor Occurrence, Development and Therapy. Cancers (Basel) 2020; 12:cancers12020291. [PMID: 31991790 PMCID: PMC7073165 DOI: 10.3390/cancers12020291] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/13/2020] [Accepted: 01/22/2020] [Indexed: 12/26/2022] Open
Abstract
Lung cancer is one of the most common and malignant cancers with extremely high morbidity and mortality in both males and females. Although traditional lung cancer treatments are fast progressing, there are still limitations. Caveolin-1 (Cav-1), a main component of caveolae, participates in multiple cellular events such as immune responses, endocytosis, membrane trafficking, cellular signaling and cancer progression. It has been found tightly associated with lung cancer cell proliferation, migration, apoptosis resistance and drug resistance. In addition to this, multiple bioactive molecules have been confirmed to target Cav-1 to carry on their anti-tumor functions in lung cancers. Cav-1 can also be a predictor for lung cancer patients’ prognosis. In this review, we have summarized the valuable research on Cav-1 and lung cancer in recent years and discussed the multifaceted roles of Cav-1 on lung cancer occurrence, development and therapy, hoping to provide new insights into lung cancer treatment.
Collapse
Affiliation(s)
- Yu-Bo Shi
- Department of Pathophysiology, Basic Medical College, Nanchang University, Nanchang 330006, China; (Y.-B.S.); (J.L.); (X.-N.L.); (R.-C.Z.)
- Queen Mary School, Jiangxi Medical College of Nanchang University, Nanchang 330006, China;
| | - Jun Li
- Department of Pathophysiology, Basic Medical College, Nanchang University, Nanchang 330006, China; (Y.-B.S.); (J.L.); (X.-N.L.); (R.-C.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Xing-Ning Lai
- Department of Pathophysiology, Basic Medical College, Nanchang University, Nanchang 330006, China; (Y.-B.S.); (J.L.); (X.-N.L.); (R.-C.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Rui Jiang
- Queen Mary School, Jiangxi Medical College of Nanchang University, Nanchang 330006, China;
| | - Rui-Chen Zhao
- Department of Pathophysiology, Basic Medical College, Nanchang University, Nanchang 330006, China; (Y.-B.S.); (J.L.); (X.-N.L.); (R.-C.Z.)
- Queen Mary School, Jiangxi Medical College of Nanchang University, Nanchang 330006, China;
| | - Li-Xia Xiong
- Department of Pathophysiology, Basic Medical College, Nanchang University, Nanchang 330006, China; (Y.-B.S.); (J.L.); (X.-N.L.); (R.-C.Z.)
- Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Nanchang 330006, China
- Correspondence: ; Tel.: +86-791-8636-0556
| |
Collapse
|
13
|
Caveolin-1 Expression Together with VEGF can be a Predictor for Lung Metastasis and Poor Prognosis in Osteosarcoma. Pathol Oncol Res 2019; 26:1787-1795. [PMID: 31676993 DOI: 10.1007/s12253-019-00755-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/22/2019] [Indexed: 12/25/2022]
Abstract
Caveolin-1, the major protein component of caveolae, plays vital functions in tumorigenesis and metastasis. Previous evidence demonstrated the positive role of Caveolin-1 in the regulation of endothelial cell differentiation and the involvement of Caveolin-1 in vascular endothelial growth factor (VEGF) mediated angiogenesis. The correlation of Caveolin-1 expression and angiogenesis is not yet elucidated in osteosarcoma. This study aimed to investigate the expression levels of Caveolin-1 and VEGF in osteosarcoma and their associations with clinicopathological data. This study included 66 formalin-fixed and paraffin embedded osteosarcoma tissue samples. The expression levels of Caveolin-1 and VEGF were assessed by immunohistochemistry. Then associations with clinicopathological variables and the correlation between both markers were evaluated statistically. We also investigated the expression of Caveolin-1 and VEGF values in gene microarrays of osteosarcoma patients and cell lines by using GEO data sets on https://www.ncbi.nlm.nih.gov. Caveolin-1 and VEGF were expressed in 19.6% and 77.3%, respectively. Caveolin-1 expression was associated positively with osteoblastic histological subtype (P < 0.0001). VEGF expression showed positive association with patient age, histological grade and clinical stage (P = 0.031, P = 0.024 and P < 0.001; respectively). An inverse correlation between Caveolin-1 and VEGF expressions in osteosarcoma was found (r = 0.2 P = 0.04). In silico analysis of Caveolin-1 and VEGF expression supported our results. Our results suggest that Caveolin-1 may act as a tumor suppressor in osteosarcoma. Down-regulation of Caveolin-1 can be used as an indicator for poor prognosis in osteosarcoma patients. Meanwhile, overexpression of VEGF is a predictor of pulmonary metastasis and poor prognosis.
Collapse
|
14
|
Zhang Y, Fan W, Wu J, Dong J, Cui Z. Association of caveolin-1 protein expression with hepatocellular carcinoma: a meta-analysis and literature review. Cancer Manag Res 2019; 11:5113-5122. [PMID: 31239768 PMCID: PMC6553953 DOI: 10.2147/cmar.s194033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 03/07/2019] [Indexed: 01/08/2023] Open
Abstract
Background: Aberrant expression of caveolin-1 (CAV-1) is involved in the pathogenesis of hepatocellular carcinoma (HCC); however, the results have been inconsistent due to the small size of sample in the individual study. Methods: We performed a meta-analysis and evaluated the association of CAV-1 protein overexpression and clinicopathological significance by using Review Manager 5.2. Pooled ORs and HR with corresponding CIs were calculated. Results: Nine studies were included in the meta-analysis with 810 HCC and 172 cirrhosis patients. CAV-1 protein overexpression was correlated with the risk of cirrhosis; OR was 3.25, p=0.01. Furthermore, the rate of CAV-1 protein overexpression was significantly higher in HCC with cirrhosis than HCC without cirrhosis, suggesting that the CAV-1 protein overexpression likely initiated carcinogenesis in liver with cirrhosis and subsequently contributed to the progression of HCC. In addition, CAV-1 protein overexpression was strongly associated with poor differentiated HCC and invasion; ORs were 2.61 and 2.71, respectively. CAV-1 protein overexpression was strongly correlated with poor overall survival in patients with HCC; HR was 0.4, p=0.03. Conclusions: In summary, CAV-1 protein overexpression is at risk for liver cirrhosis and HCC derived from cirrhosis, and CAV-1 is also a promising prognostic predictor in HCC.
Collapse
Affiliation(s)
- Yan Zhang
- Department of Pathology, Huaihe Hospital, Henan University, Kaifeng 475000, People's Republic of China
| | - Wenjuan Fan
- Medical Bioengineering Key Laboratory, Luohe Medical College, Luohe 462002, People's Republic of China
| | - Jiang Wu
- Department of Pathology, Huaihe Hospital, Henan University, Kaifeng 475000, People's Republic of China
| | - Jinglong Dong
- Department of Pathology, Huaihe Hospital, Henan University, Kaifeng 475000, People's Republic of China
| | - Zhanjun Cui
- School of Basic Medical Sciences, Henan University, Kaifeng 475004, People's Republic of China
| |
Collapse
|
15
|
Pu W, Nassar ZD, Khabbazi S, Xie N, McMahon KA, Parton RG, Riggins GJ, Harris JM, Parat MO. Correlation of the invasive potential of glioblastoma and expression of caveola-forming proteins caveolin-1 and CAVIN1. J Neurooncol 2019; 143:207-220. [PMID: 30949900 DOI: 10.1007/s11060-019-03161-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/25/2019] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Glioblastoma (GBM) is the most common primary brain cancer. The average survival time for the majority of patients is approximately 15 months after diagnosis. A major feature of GBM that contributes to its poor prognosis is its high invasiveness. Caveolae are plasma membrane subdomains that participate in numerous biological functions. Caveolin-1 and Caveolae Associated Protein 1 (CAVIN1), formerly termed Polymerase I and Transcript Release Factor, are both necessary for caveola formation. We hypothesized that high expression of caveola-forming proteins in GBM promotes invasiveness via modulation of the production of matrix-degrading enzymes. METHODS The mRNA expression of caveola-forming proteins and matrix proteases in GBM samples, and survival after stratifying patients according to caveolin-1 or CAVIN1 expression, were analyzed from TCGA and REMBRANDT databases. The proteolytic profile of cell lines expressing or devoid of caveola-forming proteins was investigated using zymography and real-time qPCR. Invasion through basement membrane-like protein was investigated in vitro. RESULTS Expression of both caveolin-1 and CAVIN1 was increased in GBM compared to normal samples and correlated with expression of urokinase plasminogen activator (uPA) and gelatinases. High expression of caveola-forming proteins was associated with shorter survival time. GBM cell lines capable of forming caveolae expressed more uPA and matrix metalloproteinase-2 (MMP-2) and/or -9 (MMP-9) and were more invasive than GBM cells devoid of caveola-forming proteins. Experimental manipulation of caveolin-1 or CAVIN1 expression in GBM cells recapitulated some, but not all of these features. Caveolae modulate GBM cell invasion in part via matrix protease expression.
Collapse
Affiliation(s)
- Wenjun Pu
- PACE, University of Queensland School of Pharmacy, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia
| | - Zeyad D Nassar
- School of Medicine and Freemasons Foundation Centre for Men's Health, South Australian Health and Medical Research Institute, University of Adelaide, Adelaide, Australia
| | - Samira Khabbazi
- PACE, University of Queensland School of Pharmacy, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia
| | - Nan Xie
- PACE, University of Queensland School of Pharmacy, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia
| | - Kerrie-Ann McMahon
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Robert G Parton
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Gregory J Riggins
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21213, USA
| | - Jonathan M Harris
- Institute of Health Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Marie-Odile Parat
- PACE, University of Queensland School of Pharmacy, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia.
| |
Collapse
|
16
|
Yang B, Wang N, Wang S, Li X, Zheng Y, Li M, Song J, Zhang F, Mei W, Lin Y, Wang Z. Network-pharmacology-based identification of caveolin-1 as a key target of Oldenlandia diffusa to suppress breast cancer metastasis. Biomed Pharmacother 2019; 112:108607. [PMID: 30784915 DOI: 10.1016/j.biopha.2019.108607] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/08/2019] [Accepted: 01/18/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Breast cancer remains the most common female malignancy and metastasis is the leading cause of death in breast cancer patients. Oldenlandia diffusa has been empirically and extensively used as an adjuvant therapy for metastatic breast cancer patients in Traditional Chinese Medicine (TCM) with proven efficacy. However, its anti-metastasis mechanism has been poorly revealed. METHODS Multiple molecular biology experiments as well as network pharmacology, bioinformatics analysis were conducted to investigate the anti-metastasis mechanism of Oldenlandia diffusa in breast cancer. RESULTS We demonstrated that ethanol extract of Oldenlandia diffusa (EEOD) significantly inhibited proliferation and induced apoptosis of high-metastatic breast cancer cell lines MDA-MB-231 and MDA-MB-453, while having no obvious cytotoxic effect on multiple nonmalignant cells. Furthermore, EEOD remarkably suppressed the migration and invasion capacities of the above breast cancer cells by modulating the matrix metalloproteinases (MMPs) and the epithelial-mesenchymal transition (EMT) pathway. More importantly, EEOD also significantly inhibited breast cancer metastasis in zebrafish xenotransplantation model in vivo. Network pharmacology and bioinformatics analysis further demonstrated that EEOD yielded 12 candidate compounds and 225 potential targets, and shared 85 putative targets associated with breast cancer metastasis. Mechanistically, RNA sequencing and experimental validation results suggested that EEOD might inhibit breast cancer metastasis by attenuating the expression of caveolin-1 (Cav-1) as overexpression of Cav-1 could weaken the anti-metastasis efficacy of EEOD. CONCLUSIONS Overall, our findings proved that EEOD could inhibit breast cancer metastasis by attenuating the expression of Cav-1, highlighting the use of EEOD as an adjunctive therapy for metastatic breast cancer patients. This study also provides novel insights into network pharmacology and bioinformatics analysis as effective tools to illuminate the scientific basis of TCM.
Collapse
Affiliation(s)
- Bowen Yang
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Neng Wang
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Shengqi Wang
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China; Post-doctoral Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xiong Li
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yifeng Zheng
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China; Post-doctoral Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Min Li
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Juxian Song
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Fengxue Zhang
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Wenjie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, China
| | - Yi Lin
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China.
| | - Zhiyu Wang
- Integrative Research Laboratory of Breast Cancer, Discipline of Integrated Chinese and Western Medicine, the Research Center of Integrative Medicine, School of Basic Medical Sciences & the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China; Post-doctoral Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
| |
Collapse
|
17
|
Umeno Y, Ogasawara S, Akiba J, Hattori S, Kusano H, Nakashima O, Koga H, Torimura T, Yamakawa R, Yano H. Regulator of G-protein signaling 5 enhances portal vein invasion in hepatocellular carcinoma. Oncol Lett 2017; 15:1763-1770. [PMID: 29434872 DOI: 10.3892/ol.2017.7474] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 02/17/2017] [Indexed: 12/22/2022] Open
Abstract
Portal vein invasion (PVI) is a major prognostic factor in hepatocellular carcinoma (HCC). The aim of the present study was to identify molecules that regulate PVI. Sections of cancerous tissue, paired noncancerous tissue and the PVI area were collected from 3 frozen HCC sections, using laser microdissection. The present study focused on 3 upregulated molecules, integrin β3 (ITGB3), secreted phosphoprotein 1 (SPP1) and regulator of G-protein signaling 5 (RGS5), and 2 molecules that were downregulated in PVI tissue compared with cancer tissue, metallothionein 1G (MT1G) and metallothionein 1H (MT1H), as determined by cDNA microarray analysis. Reverse transcription-quantitative polymerase chain reaction analysis of 32 HCC cases revealed that RGS5 mRNA levels were significantly increased and MT1 G and MT1H mRNA levels were significantly decreased in cancerous tissue compared with noncancerous tissue. However, there was no significant difference in ITGB3 and SPP1 expression. There were no significant differences between the expression of these molecules and any clinicopathologic factors, including PVI. Immunohistochemical staining for RGS5 in 60 HCC cases demonstrated that RGS5 protein levels were higher in cancerous tissue compared with paired noncancerous tissue in 63.3% of HCC cases. Furthermore, high expression of RGS5 in cancerous tissue was significantly associated with PVI and tended to be associated with intrahepatic metastasis. Confluent multinodular type was significantly more frequent in cases with high expression of RGS5 in the cancerous tissue. Therefore, RGS5 may be a useful prognostic biomarker as well as a potential target of molecular therapy to treat HCC.
Collapse
Affiliation(s)
- Yumi Umeno
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan.,Department of Ophthalmology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Sachiko Ogasawara
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Jun Akiba
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Satoshi Hattori
- Biostatistic Center, Kurume University, Kurume, Fukuoka 830-0011, Japan
| | - Hironori Kusano
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Osamu Nakashima
- Department of Clinical Laboratory Medicine, Kurume University Hospital, Kurume, Fukuoka 830-0011, Japan
| | - Hironori Koga
- Department of Medicine, Division of Gastroenterology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan.,Research Center for Innovative Cancer Therapy, Liver Cancer Research Division, Kurume University, Kurume, Fukuoka 830-0011, Japan
| | - Takuji Torimura
- Department of Medicine, Division of Gastroenterology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Ryoji Yamakawa
- Department of Ophthalmology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Hirohisa Yano
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| |
Collapse
|
18
|
The level of caveolin-1 expression determines response to TGF-β as a tumour suppressor in hepatocellular carcinoma cells. Cell Death Dis 2017; 8:e3098. [PMID: 29022911 PMCID: PMC5680590 DOI: 10.1038/cddis.2017.469] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/31/2017] [Accepted: 08/09/2017] [Indexed: 12/13/2022]
Abstract
Hepatocellular carcinoma (HCC) is a heterogeneous tumour associated with poor prognostic outcome. Caveolin-1 (CAV1), a membrane protein involved in the formation of caveolae, is frequently overexpressed in HCC. Transforming growth factor-beta (TGF-β) is a pleiotropic cytokine having a dual role in hepatocarcinogenesis: inducer of apoptosis at early phases, but pro-tumourigenic once cells acquire mechanisms to overcome its suppressor effects. Apoptosis induced by TGF-β is mediated by upregulation of the NADPH oxidase NOX4, but counteracted by transactivation of the epidermal growth factor receptor (EGFR) pathway. Previous data suggested that CAV1 is required for the anti-apoptotic signals triggered by TGF-β in hepatocytes. Whether this mechanism is relevant in hepatocarcinogenesis has not been explored yet. Here we analysed the TGF-β response in HCC cell lines that express different levels of CAV1. Accordingly, stable CAV1 knockdown or overexpressing cell lines were generated. We demonstrate that CAV1 is protecting HCC cells from TGF-β-induced apoptosis, which attenuates its suppressive effect on clonogenic growth and increases its effects on cell migration. Downregulation of CAV1 in HLE cells promotes TGF-β-mediated induction of the pro-apoptotic BMF, which correlates with upregulation of NOX4, whereas CAV1 overexpression in Huh7 cells shows the opposite effect. CAV1 silenced HLE cells show attenuation in TGF-β-induced EGFR transactivation and activation of the PI3K/AKT pathway. On the contrary, Huh7 cells, which do not respond to TGF-β activating the EGFR pathway, acquire the capacity to do so when CAV1 is overexpressed. Analyses in samples from HCC patients revealed that tumour tissues presented higher expression levels of CAV1 compared with surrounding non-tumoural areas. Furthermore, a significant positive correlation among the expression of CAV1 and TGFB1 was observed. We conclude that CAV1 has an essential role in switching the response to TGF-β from cytostatic to tumourigenic, which could have clinical meaning in patient stratification.
Collapse
|
19
|
Prognostic Value of Metastatic Tumoral Caveolin-1 Expression in Patients with Resected Gastric Cancer. Gastroenterol Res Pract 2017; 2017:5905173. [PMID: 28828003 PMCID: PMC5554552 DOI: 10.1155/2017/5905173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/08/2017] [Accepted: 06/15/2017] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE Caveolin-1 (Cav-1), as the main component of caveolae, has complex roles in tumourigenesis in human malignancies. We investigated Cav-1 in primary and metastatic tumor cells of gastric cancer (GC) and its association with clinical outcomes. METHODS We retrieved 145 cases of GC who had undergone curative gastrectomy. The expression levels of Cav-1 was evaluated by immunohistochemistry, and its association with clinicopathological parameters and patient survival was analyzed. RESULTS High expression of Cav-1 protein of the GC in the stomach and metastatic lymph node was 12.4% (18/145) and 16.5% (15/91). In the multivariate analysis, tumoral Cav-1 protein in metastatic lymph node showed prognostic significance for relapse-free survival (RFS, HR, 3.934; 95% CI, 1.882-8.224; P = 0.001) and cancer-specific survival outcome (CSS, HR, 2.681; 95% CI, 1.613-8.623; P = 0.002). Among the GCs with metastatic lymph node, it remained as a strong indicator of poor prognosis for RFS (HR, 3.136; 95% CI, 1.444-6.810; P = 0.004) and CSS (HR, 2.509; 95% CI, 1.078-5.837; P = 0.032). CONCLUSION High expression of tumoral Cav-1 protein in metastatic lymph node is associated with unfavorable prognosis of curative resected GC, indicating the potential of novel prognostic markers.
Collapse
|
20
|
Fernandez-Rojo MA, Ramm GA. Filling the Gap on Caveolin-1 in Liver Carcinogenesis. Trends Cancer 2017; 2:701-705. [PMID: 28741517 DOI: 10.1016/j.trecan.2016.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/10/2016] [Accepted: 10/10/2016] [Indexed: 11/19/2022]
Abstract
Caveolin-1 (CAV1) has emerged as a promoter of proliferation, metastasis, and chemoresistance in hepatoma cells, as well as a marker of poor prognosis in liver cancer. We discuss here current knowledge and future approaches to elucidating the molecular mechanisms underlying CAV1 action during hepatocarcinogenesis and evaluate its potential use in clinical therapies.
Collapse
Affiliation(s)
- Manuel A Fernandez-Rojo
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; Faculty of Medicine and Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia.
| | - Grant A Ramm
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; Faculty of Medicine and Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
| |
Collapse
|
21
|
Caveolin-1: An Oxidative Stress-Related Target for Cancer Prevention. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7454031. [PMID: 28546853 PMCID: PMC5436035 DOI: 10.1155/2017/7454031] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 01/23/2017] [Accepted: 03/07/2017] [Indexed: 01/19/2023]
Abstract
Aberrant oxidative metabolism is one of the hallmarks of cancer. Reactive species overproduction could promote carcinogenesis via inducing genetic mutations and activating oncogenic pathways, and thus, antioxidant therapy was considered as an important strategy for cancer prevention and treatment. Caveolin-1 (Cav-1), a constituent protein of caveolae, has been shown to mediate tumorigenesis and progression through oxidative stress modulation recently. Reactive species could modulate the expression, degradation, posttranslational modifications, and membrane trafficking of Cav-1, while Cav-1-targeted treatments could scavenge the reactive species. More importantly, emerging evidences have indicated that multiple antioxidants could exert antitumor activities in cancer cells and protective activities in normal cells by modulating the Cav-1 pathway. Altogether, these findings indicate that Cav-1 may be a promising oxidative stress-related target for cancer antioxidant prevention. Elucidating the underlying interaction mechanisms between oxidative stress and Cav-1 is helpful for enhancing the preventive effects of antioxidants on cancer, for improving clinical outcomes of antioxidant-related therapeutics in cancer patients, and for developing Cav-1 targeted drugs. Herein, we summarize the available evidence of the roles of Cav-1 and oxidative stress in tumorigenesis and development and shed novel light on designing strategies for cancer prevention or treatment by utilizing the interaction mode between Cav-1 and oxidative stress.
Collapse
|
22
|
Caveolin-1 expression in oral lichen planus, dysplastic lesions and squamous cell carcinoma. Pathol Res Pract 2017; 213:809-814. [PMID: 28554768 DOI: 10.1016/j.prp.2017.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/06/2017] [Accepted: 03/04/2017] [Indexed: 12/24/2022]
Abstract
Caveolin-1(Cav-1), the main part of caveolae structure, is supposed to play a role in pathogenesis of many human tumors. Since oral lichen planus (OLP) is considered as a potential premalignant disease, this study evaluated Cav-1 expression in OLP in comparison with benign hyperkeratosis, dysplastic epithelium and oral squamous cell carcinoma (OSCC), to investigate its possible role in pathogenesis and malignant transformation of OLP. In this cross-sectional retrospective study, immunohistochemical expression of Cav-1 in the epithelial component and stroma was evaluated in 81 samples, including 12 cases of hyperkeratosis, 24 OLP, 22 epithelial dysplasia, and 23 OSCC samples. Correlations between Cav-1 expression and clinicopathological variables were evaluated statistically. Positive Cav-1 staining was found in 58% of OLP, 91% of hyperkeratosis, 100% of epithelial dysplasia, and 95% of OSCC samples. OSCC showed the highest Cav-1 expression and OLP had the lowest (P=0.001). The intensity of staining was significantly increased in stepwise manner from OLP to OSCC (P=0.001). Expression of Cav-1 was related to the grade of samples in OSCC and dysplastic samples (P=0.04). Based on the findings, it was concluded that Cav-1 may play a role in the pathogenesis of OLP and carcinogenesis of SCC, but its role in malignant transformation of OLP is not confirmed. Further studies are needed to evaluate its potential therapeutic function in OLP and SCC.
Collapse
|
23
|
Fu P, Chen F, Pan Q, Zhao X, Zhao C, Cho WCS, Chen H. The different functions and clinical significances of caveolin-1 in human adenocarcinoma and squamous cell carcinoma. Onco Targets Ther 2017; 10:819-835. [PMID: 28243118 PMCID: PMC5317307 DOI: 10.2147/ott.s123912] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Caveolin-1 (Cav-1), a major structural protein of caveolae, is an integral membrane protein which plays an important role in the progression of carcinoma. However, whether Cav-1 acts as a tumor promoter or a tumor suppressor still remains controversial. For example, the tumor-promoting function of Cav-1 has been found in renal cancer, prostate cancer, tongue squamous cell carcinoma (SCC), lung SCC and bladder SCC. In contrast, Cav-1 also plays an inhibitory role in esophagus adenocarcinoma, lung adenocarcinoma and cutaneous SCC. The role of Cav-1 is still controversial in thyroid cancer, hepatocellular carcinoma, gastric adenocarcinoma, colon adenocarcinoma, breast cancer, pancreas cancer, oral SCC, laryngeal SCC, head and neck SCC, esophageal SCC and cervical SCC. Besides, it has been reported that the loss of stromal Cav-1 might predict poor prognosis in breast cancer, gastric cancer, pancreas cancer, prostate cancer, oral SCC and esophageal SCC. However, the accumulation of stromal Cav-1 has been found to be promoted by the progression of tongue SCC. Taken together, Cav-1 seems playing a different role in different cancer subtypes even of the same organ, as well as acting differently in the same cancer subtype of different organs. Thus, we hereby explore the functions of Cav-1 in human adenocarcinoma and SCC from the perspective of clinical significances and pathogenesis. We envision that novel targets may come with the further investigation of Cav-1 in carcinogenesis.
Collapse
Affiliation(s)
- Pin Fu
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan
| | - Fuchun Chen
- Department of Thoracosurgery, Traditional Chinese Medical Hospital of Wenling, Wenling, Zhejiang
| | - Qi Pan
- Department of Thoracosurgery, Traditional Chinese Medical Hospital of Wenling, Wenling, Zhejiang
| | - Xianda Zhao
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan
| | - Chen Zhao
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan
| | | | - Honglei Chen
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan; Department of Pathology, Maternal and Child Health Hospital of Hubei, Wuhan, People's Republic of China
| |
Collapse
|
24
|
Demirci NS, Dogan M, Erdem GU, Kacar S, Turhan T, Kilickap S, Cigirgan LC, Kayacetin E, Bozkaya Y, Zengin N. Is plasma caveolin-1 level a prognostic biomarker in metastatic pancreatic cancer? Saudi J Gastroenterol 2017; 23:183-189. [PMID: 28611342 PMCID: PMC5470378 DOI: 10.4103/sjg.sjg_483_16] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND/AIMS To evaluate the prognostic significance of plasma caveolin (CAV)-1 and its association with survival and treatment response rates in metastatic pancreatic cancer (MPC). PATIENTS AND METHODS Plasma samples were prospectively collected from 41 patients with newly diagnosed MPC. Moreover, plasma samples were collected from 48 patients with chronic pancreatitis and 41 healthy individuals (control groups) for assessing Cav-1 levels. Plasma Cav-1 levels were evaluated at baseline and after three cycles of chemotherapy in the patients with MPC. RESULTS The median Cav-1 level was 13.8 ng/mL for the patients with MPC and 12.2 ng/mL for healthy individuals (P = 0.009). The Cav-1 cut-off level was calculated as 11.6 ng/mL by using the receiver operating characteristic curve. The median overall survival and progression-free survival rates were 5 and 2.4 months, respectively, for participants with a high basal plasma Cav-1 level; the corresponding values were 10.5 and 9.4 months for participants with a low plasma Cav-1 level (P = 0.011 and P= 0.003, respectively). Of the 41 patients with MPC, 23 completed at least three cycles of chemotherapy. The median Cav-1 level was 13 ng/mL for post-treatment MPC (r2: 0.917; P= 0.001). High basal plasma caveolin-1 level have continued to remain at high levels even after chemotherapy, showing a trend toward worse response rates (P = 0.086). CONCLUSION High basal plasma Cav-1 levels seem to be associated with poor survival and tend to yield worse therapeutic outcomes in patients with MPC. This study is the first to evaluate the prognostic significance of plasma Cav-1 levels as a prognostic factor in patients with MPC. However, larger prospective clinical trials are warranted.
Collapse
Affiliation(s)
- Nebi S. Demirci
- Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey,Address for correspondence: Dr. Nebi S. Demirci, Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey. E-mail:
| | - Mutlu Dogan
- Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Gokmen U. Erdem
- Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Sabite Kacar
- Department of Gastroenterology, Turkiye Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Turan Turhan
- Department of Biochemistry, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Saadettin Kilickap
- Department of Medical Oncology, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Lutfi C. Cigirgan
- Department of Biochemistry, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Ertugrul Kayacetin
- Department of Gastroenterology, Turkiye Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Yakup Bozkaya
- Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Nurullah Zengin
- Department of Medical Oncology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
25
|
Nwosu ZC, Ebert MP, Dooley S, Meyer C. Caveolin-1 in the regulation of cell metabolism: a cancer perspective. Mol Cancer 2016; 15:71. [PMID: 27852311 PMCID: PMC5112640 DOI: 10.1186/s12943-016-0558-7] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/03/2016] [Indexed: 12/16/2022] Open
Abstract
Caveolin-1 (CAV1) is an oncogenic membrane protein associated with endocytosis, extracellular matrix organisation, cholesterol distribution, cell migration and signaling. Recent studies reveal that CAV1 is involved in metabolic alterations – a critical strategy adopted by cancer cells to their survival advantage. Consequently, research findings suggest that CAV1, which is altered in several cancer types, influences tumour development or progression by controlling metabolism. Understanding the molecular interplay between CAV1 and metabolism could help uncover druggable metabolic targets or pathways of clinical relevance in cancer therapy. Here we review from a cancer perspective, the findings that CAV1 modulates cell metabolism with a focus on glycolysis, mitochondrial bioenergetics, glutaminolysis, fatty acid metabolism, and autophagy.
Collapse
Affiliation(s)
- Zeribe Chike Nwosu
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany.,Molecular Hepatology Section, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany
| | - Matthias Philip Ebert
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany
| | - Steven Dooley
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany.,Molecular Hepatology Section, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany
| | - Christoph Meyer
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany. .,Molecular Hepatology Section, Medical Faculty Mannheim, University of Heidelberg, Mannheim, 68167, Germany.
| |
Collapse
|
26
|
Li Z, Wang N, Huang C, Bao Y, Jiang Y, Zhu G. Downregulation of caveolin-1 increases the sensitivity of drug-resistant colorectal cancer HCT116 cells to 5-fluorouracil. Oncol Lett 2016; 13:483-487. [PMID: 28123586 DOI: 10.3892/ol.2016.5390] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 09/14/2016] [Indexed: 01/12/2023] Open
Abstract
Colorectal cancer is the third most common type of cancer in men and women. Chemotherapy is an important treatment strategy for patients with terminal stage cancer. However, the development of drug resistance hampers the effectiveness of chemotherapy. Therefore, an effective therapeutic approach to target chemoresistance-associated cellular molecules is required. In the present study, drug-resistant human colorectal cancer HCT116 cells were developed by treating HCT116 cells with increasing concentrations of 5-fluorouracil (5-FU). The present study indicated that the drug-resistance cells (DRC) were resistant to 5-FU compared with parental HCT116 cells by detecting cell survival using an MTT assay. Additionally, the expression of the chemoresistance-associated protein caveolin-1 (Cav-1) was assessed by reverse transcription-quantitative polymerase chain reaction and western blotting. The results revealed that the Cav-1 expression level was significantly higher in DRC compared with that in the parental HCT116 cells. Next, Cav-1 was silenced by small interfering RNA (siRNA) or was inhibited with its specific inhibitor methyl β-cyclodextrin (MCD). MTT assay demonstrated that Cav-1 siRNA and MCD resensitized DRC to 5-FU. These data reveal that Cav-1 was involved in the development of resistance, suggesting that Cav-1 is a potential target for the treatment of colorectal cancer chemoresistance. In addition, 5-FU combined with Cav-1 siRNA or its specific inhibitor may increase the effectiveness of the treatment strategy.
Collapse
Affiliation(s)
- Zhaoyang Li
- Department of Oncology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, P.R. China
| | - Ning Wang
- Department of Ultrasound, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, P.R. China
| | - Changxin Huang
- Department of Oncology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, P.R. China
| | - Yanhong Bao
- Second Clinical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Yiqian Jiang
- Department of Radiation Oncology, The First People's Hospital of Xiaoshan, Hangzhou, Zhejiang 311200, P.R. China
| | - Guiting Zhu
- Department of Oncology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, P.R. China
| |
Collapse
|
27
|
Caveolin-1 Function in Liver Physiology and Disease. Trends Mol Med 2016; 22:889-904. [DOI: 10.1016/j.molmed.2016.08.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/14/2016] [Accepted: 08/17/2016] [Indexed: 12/18/2022]
|
28
|
Wang Z, Wang N, Liu P, Peng F, Tang H, Chen Q, Xu R, Dai Y, Lin Y, Xie X, Peng C, Situ H. Caveolin-1, a stress-related oncotarget, in drug resistance. Oncotarget 2016; 6:37135-50. [PMID: 26431273 PMCID: PMC4741920 DOI: 10.18632/oncotarget.5789] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/08/2015] [Indexed: 12/28/2022] Open
Abstract
Caveolin-1 (Cav-1) is both a tumor suppressor and an oncoprotein. Cav-1 overexpression was frequently confirmed in advanced cancer stages and positively associated with ABC transporters, cancer stem cell populations, aerobic glycolysis activity and autophagy. Cav-1 was tied to various stresses including radiotherapy, fluid shear and oxidative stresses and ultraviolet exposure, and interacted with stress signals such as AMP-activated protein kinase. Finally, a Cav-1 fluctuation model during cancer development is provided and Cav-1 is suggested to be a stress signal and cytoprotective. Loss of Cav-1 may increase susceptibility to oncogenic events. However, research to explore the underlying molecular network between Cav-1 and stress signals is warranted.
Collapse
Affiliation(s)
- Zhiyu Wang
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Neng Wang
- Department of Breast Oncology, Sun Yat-sen Univeristy Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Pengxi Liu
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fu Peng
- Pharmacy College, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Guangzhou, China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-sen Univeristy Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Qianjun Chen
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Rui Xu
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan Dai
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi Lin
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoming Xie
- Department of Breast Oncology, Sun Yat-sen Univeristy Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Cheng Peng
- Pharmacy College, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Guangzhou, China
| | - Honglin Situ
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou, China
| |
Collapse
|
29
|
Zou W, Ma X, Hua W, Chen B, Cai G. Caveolin-1 mediates chemoresistance in cisplatin-resistant ovarian cancer cells by targeting apoptosis through the Notch-1/Akt/NF-κB pathway. Oncol Rep 2016; 34:3256-63. [PMID: 26503358 DOI: 10.3892/or.2015.4320] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 06/26/2015] [Indexed: 11/06/2022] Open
Abstract
Caveolin-1 (Cav-1), a family of ubiquitously expressed oligomeric structural proteins in many mammalian cells, has been shown to be an effective regulator of tumorigenesis. Recent studies have indicated that Cav-1 can promote resistance to chemotherapy in a variety of tumors. However, the regulation of Cav-1 on chemoresistance in ovarian cancer is still unknown. In the present study, the mRNA and protein expression level was investigated by RT-PCR and western blot analysis, respectively, and the 50% inhibitory concentration (IC50) value was measured by MTT assay. The protein expression level of P-glycoprotein (P-gp), Notch-1, p-Akt and p-NF-κB p65 were detected using western blot analysis and the apoptotic ratio was determined using the Annexin V-FITC/PI detection kit. The results showed that the mRNA and protein expression levels of Cav-1 were significantly higher in SKOV3/DDP and A2780/DDP than in SKOV3 and A2780, respectively. Knockdown of Cav-1 significantly decreased the IC50 value in cisplatin-resistant cells. The protein expression level of P-gp in SKOV3/DDP and A2780/DDP was significant higher than SKOV3 and A2780, respectively, and had no correlation with the Cav-1 siRNA transfection. The apoptotic ratio induced by cisplatin in normal ovarian cancer cells was higher than cisplatin-resistant ovarian cancer cells, and knockdown of Cav-1 could significantly enhance cisplatin induced cell apoptosis. Furthermore, knockdown of Cav-1 was also able to significantly downregulate the protein expression level of Notch-1, p-Akt and p-NF-κB p65 in cisplatin-resistant ovarian cancer cells. Overexpression of Cav-1 upregulated the IC50 value, but under the effect of Notch-1 siRNA or LY294002 or PDTC, the IC50 value was markedly decreased. Our results suggested that Cav-1 can promote the chemoresistance of ovarian cancer by targeting apoptosis through the Notch-1/Akt/NF-κB pathway.
Collapse
|
30
|
Zhou Y, Yu Q, Qin X, Bhavsar D, Yang L, Chen Q, Zheng W, Chen L, Liu J. Improving the Anticancer Efficacy of Laminin Receptor-Specific Therapeutic Ruthenium Nanoparticles (RuBB-Loaded EGCG-RuNPs) via ROS-Dependent Apoptosis in SMMC-7721 Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15000-12. [PMID: 26018505 DOI: 10.1021/acsami.5b02261] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Functionalization can promote the uptake of nanoparticles into cancer cells via receptor-mediated endocytosis, enabling them to exert their therapeutic effects. In this paper, epigallocatechin gallate (EGCG), which has a high binding affinity to 67 kDa laminin receptor (67LR) overexpressed in HCC cells, was employed in the present study to functionalized ruthenium nanoparticles (RuNPs) loaded with luminescent ruthenium complexes to achieve antiliver cancer efficacy. [Ru(bpy)2(4-B)] (ClO4)2·2H2O (RuBB)-loaded EGCG-RuNPs (bpy = 2,2'-bipyridine) showed small particle size with narrow distribution, better stability, and high selectivity between liver cancer and normal cells. The internalization of RuBB-loaded EGCG-RuNPs was inhibited by 67LR-blocking antibody or laminin, suggesting that 67LR-mediated endocytosis played an important role in the uptake into HCC cells. Moreover, transmission electron microscopy and confocal microscopic images showed that RuBB-loaded EGCG-RuNPs accumulated in the cytoplasm of SMMC-7721 cells. Furthermore, our results indicated that the EGCG-functionalized nanoparticles displayed enhanced anticancer effects in a target-specific manner. Concentrations of RuBB-loaded EGCG-RuNPs, nontoxic in normal L-02 cells, showed direct reactive oxygen species-dependent cytotoxic, pro-apoptotic, and anti-invasive effects in SMMC-7721 cells. Furthermore, in vivo animal study demonstrated that RuBB-loaded EGCG-RuNPs possessed high antitumor efficacy on tumor-bearing nude mice. It is encouraging to conclude that the multifunctional RuNPs may form the basis of new strategies on the treatment of liver cancer and other malignancies.
Collapse
Affiliation(s)
- Yanhui Zhou
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Qianqian Yu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Xiuying Qin
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Dhairya Bhavsar
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Licong Yang
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Qingchang Chen
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Wenjing Zheng
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Lanmei Chen
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| |
Collapse
|
31
|
Liu WR, Jin L, Tian MX, Jiang XF, Yang LX, Ding ZB, Shen YH, Peng YF, Gao DM, Zhou J, Qiu SJ, Dai Z, Fan J, Shi YH. Caveolin-1 promotes tumor growth and metastasis via autophagy inhibition in hepatocellular carcinoma. Clin Res Hepatol Gastroenterol 2016. [PMID: 26206578 DOI: 10.1016/j.clinre.2015.06.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Caveolin-1 is a member of the caveolae family of membrane proteins. Although some researchers have investigated the function of Caveolin-1 in hepatocellular carcinoma, the mechanism of Caveolin-1 action and its prognostic value in hepatocellular carcinoma remain unclear. METHODS Caveolin-1 expression was measured in hepatocellular carcinoma cell lines and tissues using quantitative reverse transcription-polymerase chain reaction, western blot, and immunofluorescence assays. In in vitro experiments, Caveolin-1 was depleted using a short hairpin RNA lentiviral vector, and tumor cell behavior was analyzed. The effect of Caveolin-1 on hepatocellular carcinoma cell autophagy was investigated. Prognostic value of Caveolin-1 was analyzed by immunohistochemistry in two cohorts that included a total of 721 hepatocellular carcinoma patients. RESULTS We found that Caveolin-1 was overexpressed in highly metastatic hepatocellular carcinoma cell lines and tumor tissues. Moreover, Caveolin-1 promoted hepatocellular carcinoma cell proliferation, migration, and angiogenesis and inhibited autophagy. Finally, Caveolin-1 expression in hepatocellular carcinoma tissues was inversely correlated with patient overall survival and time to recurrence. CONCLUSION Our data obtained from cell lines suggest an oncogenic role for Caveolin-1 in hepatocellular carcinoma, Caveolin-1 contributed to hepatocellular carcinoma cell autophagy deficiency. Furthermore, Caveolin-1 may function as a novel prognostic indicator for hepatocellular carcinoma patients after curative resection, and combination of targeted therapy aimed at Caveolin-1 and autophagy modulation may represent an effective way to treat hepatocellular carcinoma.
Collapse
Affiliation(s)
- Wei-Ren Liu
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Lei Jin
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Meng-Xin Tian
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Xi-Fei Jiang
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Liu-Xiao Yang
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Zhen-Bin Ding
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Ying-Hao Shen
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Yuan-Fei Peng
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Dong-Mei Gao
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Jian Zhou
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, People's Republic of China
| | - Shuang-Jian Qiu
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Zhi Dai
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Jia Fan
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, People's Republic of China
| | - Ying-Hong Shi
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, 180, FengLin Road, 200032 Shanghai, China; Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China.
| |
Collapse
|
32
|
Song G, Cao HX, Yao SX, Li CT. Abnormal expression of WIF1 in hepatocellular carcinoma cells and its regulating effect on invasion and metastasis factors of TIMP-3 and caveolin-1 of hepatocellular carcinoma. ASIAN PAC J TROP MED 2015; 8:958-963. [PMID: 26614997 DOI: 10.1016/j.apjtm.2015.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 09/20/2015] [Accepted: 09/30/2015] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To discuss the abnormal expression of Wnt inhibitory factor (WIF1) in hepatocellular carcinoma cells and its regulating effect on the hepatocellular carcinoma invasion and metastasis factors of tissue inhibitor of matrix metalloproteinases-3 (TIMP-3) and caveolin-1. METHODS RT-PCR and Western blot were employed to detect the expression of WIF1 in six hepatocellular carcinoma cell lines of HepG2, Hep3B, Huh7, PLC/PRF/5, SMMC-7721 and MHCC97 and the immortalized human liver cell line THLE-3. Besides, Lipofectamine 2000 was employed to transfect the eukaryotic expression vector pcDNA3.1-WIF1 and blank plasmid pcDNA3.1 into hepatocellular carcinoma cell lines. Transwell assay was used to detect the effect of WIF1 on the invasion ability of hepatocellular carcinoma cells; Western blot was used to detect the effect of WIF1 on the expression of TIMP-3 and caveolin-1 in hepatocellular carcinoma cells, it also discussed the effect on the expression of β-catenin. RESULTS The expression of WIF1 in hepatocellular carcinoma cell lines was lower than that in the normal liver cell lines (P < 0.01); while there was basically no expression of WIF1 in the human highly metastatic cell line MHCC-97 and moderate expression in HepG2 and SMMC-7721. Therefore, HepG2 and SMMC-7721 were chosen as the further experimental cell lines. After transfecting the eukaryotic expression vector pcDNA3.1-WIF1 and blank plasmid pcDNA3.1 into hepatocellular carcinoma cell lines, compared with the blank plasmid group, the cell viability and invasion ability in the WIF1 group were all reduced (P < 0.01), the expression of TIMP-3, caveolin-1 and mRNA were all down-regulated (P < 0.01), and the expression of β-catenin was decreased (P < 0.01). CONCLUSIONS Because of down-regulation or missing of expression of WIF1 in hepatocellular carcinoma cell lines, the up-regulation of WIF1 expression can significantly inhibit the invasion and metastasis of HepG2 and SMMC-7721 of hepatocellular carcinoma cell lines, which are related to the up-regulated expression of TIMP-3 and down-regulated expression of caveolin-1 and may be realized through the Wnt/β-catenin signaling pathway.
Collapse
Affiliation(s)
- Guang Song
- Department of Interventional Therapy, Affiliated Tangshan Workers Hospital of Hebei Medical University, Tangshan 063000, Hebei, China
| | - Hong-Xia Cao
- Department of Interventional Therapy, Affiliated Tangshan Workers Hospital of Hebei Medical University, Tangshan 063000, Hebei, China
| | - Shao-Xin Yao
- Department of Interventional Therapy, Affiliated Tangshan Workers Hospital of Hebei Medical University, Tangshan 063000, Hebei, China
| | - Cang-Tuo Li
- Department of Interventional Therapy, Affiliated Tangshan Workers Hospital of Hebei Medical University, Tangshan 063000, Hebei, China.
| |
Collapse
|
33
|
Gupta R, Toufaily C, Annabi B. Caveolin and cavin family members: dual roles in cancer. Biochimie 2014; 107 Pt B:188-202. [PMID: 25241255 DOI: 10.1016/j.biochi.2014.09.010] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 09/04/2014] [Indexed: 12/16/2022]
Abstract
Caveolae are specialized plasma membrane subdomains with distinct lipid and protein compositions, which play an essential role in cell physiology through regulation of trafficking and signaling functions. The structure and functions of caveolae have been shown to require the proteins caveolins. Recently, members of the cavin protein family were found to be required, in concert with caveolins, for the formation and function of caveolae. Caveolins have a paradoxical role in the development of cancer formation. They have been involved in both tumor suppression and oncogenesis, depending on tumor type and progress stage. High expression of caveolins and cavins leads to inhibition of cancer-related pathways, such as growth factor signaling pathways. However, certain cancer cells that express caveolins and cavins have been shown to be more aggressive and metastatic because of their increased potential for anchorage-independent growth. Here, we will survey the functional roles of caveolins and of different cavin family members in cancer regulation.
Collapse
Affiliation(s)
- Reshu Gupta
- Laboratoire d'Oncologie Moléculaire, Centre de Recherche BioMed, Département de Chimie, Université du Québec à Montréal, Québec H3C 3P8, Canada.
| | - Chirine Toufaily
- Laboratoire d'Oncologie Moléculaire, Centre de Recherche BioMed, Département de Chimie, Université du Québec à Montréal, Québec H3C 3P8, Canada
| | - Borhane Annabi
- Laboratoire d'Oncologie Moléculaire, Centre de Recherche BioMed, Département de Chimie, Université du Québec à Montréal, Québec H3C 3P8, Canada
| |
Collapse
|
34
|
Yu H, Shen H, Zhang Y, Zhong F, Liu Y, Qin L, Yang P. CAV1 promotes HCC cell progression and metastasis through Wnt/β-catenin pathway. PLoS One 2014; 9:e106451. [PMID: 25180681 PMCID: PMC4152279 DOI: 10.1371/journal.pone.0106451] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 08/04/2014] [Indexed: 12/18/2022] Open
Abstract
Caveolin-1 (CAV1) has significant roles in many primary tumors and metastasis, despite the fact that malignant cells from different cancer types have different profiles of CAV1 expression. There is little information concerning CAV1 expression and role in hepatocellular carcinoma (HCC) progresion and metastasis. The role of CAV1 in HCC progression was explored in this study. We reported that CAV1 was overexpressed in highly invasive HCC cell lines compared with poorly invasive ones. The immunohistochemical staining was obviously stronger in metastatic HCC samples than in the non-metastatic specimens via tissue microarrays. Furthermore, CAV1 overexpression enhanced HCC cell invasiveness in vitro, and promoted tumorigenicity and lung metastasis in vivo. By contrast, CAV1 stable knockdown markedly reduced these malignant behaviors. Importantly, we found that CAV1 could induce EMT process through Wnt/β-catenin pathway to promote HCC metastasis. We also identify MMP-7 as a novel downstream target of CAV1. We have determined that CAV1 acts as a mediator between hyperactive ERK1/2 signaling and regulation of MMP-7 transcription. Together, these studies mechanistically show a previously unrecognized interplay between CAV1, EMT, ERK1/2 and MMP-7 that is likely significant in the progression of HCC toward metastasis.
Collapse
Affiliation(s)
- Hongxiu Yu
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
| | - Huali Shen
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
| | - Yang Zhang
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
| | - Fan Zhong
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
| | - Yinkun Liu
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
- Zhongshan Hospital, Fudan University, Shanghai, P. R. China
| | - Lunxiu Qin
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
- Zhongshan Hospital, Fudan University, Shanghai, P. R. China
| | - Pengyuan Yang
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, P. R. China
- Department of Chemistry, Fudan University, Shanghai, P. R. China
- * E-mail:
| |
Collapse
|
35
|
Chen D, Che G. Value of caveolin-1 in cancer progression and prognosis: Emphasis on cancer-associated fibroblasts, human cancer cells and mechanism of caveolin-1 expression (Review). Oncol Lett 2014; 8:1409-1421. [PMID: 25202343 PMCID: PMC4156192 DOI: 10.3892/ol.2014.2385] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 05/07/2014] [Indexed: 02/05/2023] Open
Abstract
Caveolin-1 (Cav-1) is found predominately in terminally differentiated cells, such as adipocytes, endothelia and smooth muscle cells, as well as type I pneumocytes. As a main structural component of caveolae, Cav-1 is important in modulating cellular signaling. In the present study, the expression and clinical role of Cav-1 were analyzed in tumor stromal and human cancer cells, respectively. The results of previous studies have shown that the downregulation of tumor stromal Cav-1 promotes tumor survival and predicts a poor tumor prognosis, predominantly concentrating on the mechanism of the metabolism of the cancer microenvironment (according to the autophagic tumor stroma model of cancer metabolism and the reverse Warburg effect). However, contradictory results concerning the expression, clinical roles and associated mechanisms of Cav-1 have been reported. An improved understanding of Cav-1 expression in tumor stromal and cancer cells will increase knowledge with regard to the clinical value of Cav-1 and its detailed mechanisms. This review summarizes the novel data concerning the clinical values and probable mechanisms of Cav-1 expression in tumor stromal (predominantly in cancer-associated fibroblasts) and cancer cells, respectively.
Collapse
Affiliation(s)
- Dali Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Guowei Che
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| |
Collapse
|
36
|
Caveolin-1 is required for TGF-β-induced transactivation of the EGF receptor pathway in hepatocytes through the activation of the metalloprotease TACE/ADAM17. Cell Death Dis 2014; 5:e1326. [PMID: 25032849 PMCID: PMC4123087 DOI: 10.1038/cddis.2014.294] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 05/14/2014] [Accepted: 06/05/2014] [Indexed: 12/28/2022]
Abstract
Transforming growth factor-beta (TGF-β) plays a dual role in hepatocytes, inducing both pro- and anti-apoptotic responses, whose balance decides cell fate. Survival signals are mediated by the epidermal growth factor receptor (EGFR) pathway, which is activated by TGF-β in these cells. Caveolin-1 (Cav1) is a structural protein of caveolae linked to TGF-β receptors trafficking and signaling. Previous results have indicated that in hepatocytes, Cav1 is required for TGF-β-induced anti-apoptotic signals, but the molecular mechanism is not fully understood yet. In this work, we show that immortalized Cav1(-/-) hepatocytes were more sensitive to the pro-apoptotic effects induced by TGF-β, showing a higher activation of caspase-3, higher decrease in cell viability and prolonged increase through time of intracellular reactive oxygen species (ROS). These results were coincident with attenuation of TGF-β-induced survival signals in Cav1(-/-) hepatocytes, such as AKT and ERK1/2 phosphorylation and NFκ-B activation. Transactivation of the EGFR pathway by TGF-β was impaired in Cav1(-/-) hepatocytes, which correlated with lack of activation of TACE/ADAM17, the metalloprotease responsible for the shedding of EGFR ligands. Reconstitution of Cav1 in Cav1(-/-) hepatocytes rescued wild-type phenotype features, both in terms of EGFR transactivation and TACE/ADAM17 activation. TACE/ADAM17 was localized in detergent-resistant membrane (DRM) fractions in Cav1(+/+) cells, which was not the case in Cav1(-/-) cells. Disorganization of lipid rafts after treatment with cholesterol-binding agents caused loss of TACE/ADAM17 activation after TGF-β treatment. In conclusion, in hepatocytes, Cav1 is required for TGF-β-mediated activation of the metalloprotease TACE/ADAM17 that is responsible for shedding of EGFR ligands and activation of the EGFR pathway, which counteracts the TGF-β pro-apoptotic effects. Therefore, Cav1 contributes to the pro-tumorigenic effects of TGF-β in liver cancer cells.
Collapse
|
37
|
Shan T, Lu H, Ji H, Li Y, Guo J, Chen X, Wu T. Loss of stromal caveolin-1 expression: a novel tumor microenvironment biomarker that can predict poor clinical outcomes for pancreatic cancer. PLoS One 2014; 9:e97239. [PMID: 24949874 PMCID: PMC4064978 DOI: 10.1371/journal.pone.0097239] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 04/16/2014] [Indexed: 02/01/2023] Open
Abstract
AIMS Cancer development and progression is not only associated with the tumor cell proliferation but also depends on the interaction between tumor cells and the stromal microenvironment. A new understanding of the role of the tumor microenvironment suggests that the loss of stromal caveolin-1 (Cav-1) as a key regulator may become a potential therapy target. This study aims to elucidate whether stromal Cav-1 expression in pancreatic cancer can be a strong prognosis biomarker. METHODS Tissue samples from 45 pancreatic cancer patients were studied. Parenchyma and stroma were separated and purified using laser capture microdissection. Stromal Cav-1 expression was measured from pancreatic cancer, paraneoplastic, and normal tissue using immunohistochemistry. We analyzed the correlation of stromal Cav-1 expression with clinicopathologic features and prognostic indicators, such as tumor marker HER-2/neu gene. RESULTS Specimens from six patients (13.3%) showed high levels of stromal Cav-1 staining, those from eight patients (17.8%) showed a lower, intermediate level of staining, whereas those from 31 patients (68.9%) showed an absence of staining. Cav-1 expression in cancer-associated fibroblasts was lower than that in paracancer-associated and in normal fibroblasts. Stromal Cav-1 loss was associated with TNM stage (P = 0.018), lymph node metastasis (P = 0.014), distant metastasis (P = 0.027), and HER-2/neu amplification (P = 0.007). The relationships of age, sex, histological grade, and tumor size with stromal Cav-1 expression were not significant (P>0.05). A negative correlation was found between circulating tumor cells and stromal Cav-1 expression (P<0.05). CONCLUSION The loss of stromal Cav-1 in pancreatic cancer was an independent prognostic indicator, thus suggesting that stromal Cav-1 may be an effective therapeutic target for patients with pancreatic cancer.
Collapse
Affiliation(s)
- Tao Shan
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Hongwei Lu
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Hong Ji
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yiming Li
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jian Guo
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xi Chen
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Tao Wu
- Department of General Surgery, Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| |
Collapse
|
38
|
O'Sullivan S, Medina C, Ledwidge M, Radomski MW, Gilmer JF. Nitric oxide-matrix metaloproteinase-9 interactions: biological and pharmacological significance--NO and MMP-9 interactions. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:603-17. [PMID: 24333402 DOI: 10.1016/j.bbamcr.2013.12.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 12/02/2013] [Accepted: 12/05/2013] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) and matrix metalloproteinase 9 (MMP-9) levels are found to increase in inflammation states and in cancer, and their levels may be reciprocally modulated. Understanding interactions between NO and MMP-9 is of biological and pharmacological relevance and may prove crucial in designing new therapeutics. The reciprocal interaction between NO and MMP-9 have been studied for nearly twenty years but to our knowledge, are yet to be the subject of a review. This review provides a summary of published data regarding the complex and sometimes contradictory effects of NO on MMP-9. We also analyse molecular mechanisms modulating and mediating NO-MMP-9 interactions. Finally, a potential therapeutic relevance of these interactions is presented.
Collapse
|
39
|
Prolonged nitric oxide exposure enhances anoikis resistance and migration through epithelial-mesenchymal transition and caveolin-1 upregulation. BIOMED RESEARCH INTERNATIONAL 2014; 2014:941359. [PMID: 24967418 PMCID: PMC4055163 DOI: 10.1155/2014/941359] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 05/01/2014] [Indexed: 11/18/2022]
Abstract
Nitric oxide (NO) in tumor microenvironment may have a significant impact on metastatic behaviors of cancer. Noncytotoxic doses of NO enhanced anoikis resistance and migration in lung cancer H23 cells via an increase in lamellipodia, epithelial-mesenchymal transition (EMT) markers including vimentin and snail, and caveolin-1 (Cav-1). However, the induction of EMT was found in Cav-1-knock down cells treated with NO, suggesting that EMT was through Cav-1-independent pathway. These effects of NO were consistently observed in other lung cancer cells including H292 and H460 cells. These findings highlight the novel role of NO on EMT and metastatic behaviors of cancer cells.
Collapse
|
40
|
Chen D, Shen C, Du H, Zhou Y, Che G. Duplex value of caveolin-1 in non-small cell lung cancer: a meta analysis. Fam Cancer 2014; 13:449-57. [DOI: 10.1007/s10689-014-9707-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
41
|
Gai X, Lu Z, Tu K, Liang Z, Zheng X. Caveolin-1 is up-regulated by GLI1 and contributes to GLI1-driven EMT in hepatocellular carcinoma. PLoS One 2014; 9:e84551. [PMID: 24454730 PMCID: PMC3890273 DOI: 10.1371/journal.pone.0084551] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 11/15/2013] [Indexed: 01/04/2023] Open
Abstract
Caveolin-1 (Cav-1) has been recently identified to be over-expressed in hepatocellular carcinoma (HCC) and promote HCC cell motility and invasion ability via inducing epithelial-mesenchymal transition (EMT). However, the mechanism of aberrant overexpression of Cav-1 remains vague. Here, we observed that Cav-1 expression was positively associated with GLI1 expression in HCC tissues. Forced expression of GLI1 up-regulated Cav-1 in Huh7 cells, while knockdown of GLI1 decreased expression of Cav-1 in SNU449 cells. Additionally, silencing Cav-1 abolished GLI1-induced EMT of Huh7 cells. The correlation between GLI1 and Cav-1 was confirmed in tumor specimens from HCC patients and Cav-1 was found to be associated with poor prognosis after hepatic resection. The relationship between protein expression of GLI1 and Cav-1 was also established in HCC xenografts of nude mice. These results suggest that GLI1 may be attributed to Cav-1 up-regulation which plays an important role in GLI1-driven EMT phenotype in HCC.
Collapse
Affiliation(s)
- Xiaohong Gai
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhongtang Lu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kangsheng Tu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zheyong Liang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin Zheng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- * E-mail:
| |
Collapse
|
42
|
Alili L, Sack M, von Montfort C, Giri S, Das S, Carroll KS, Zanger K, Seal S, Brenneisen P. Downregulation of tumor growth and invasion by redox-active nanoparticles. Antioxid Redox Signal 2013; 19. [PMID: 23198807 PMCID: PMC3752511 DOI: 10.1089/ars.2012.4831] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
AIMS Melanoma is the most aggressive type of malignant skin cancer derived from uncontrolled proliferation of melanocytes. Melanoma cells possess a high potential to metastasize, and the prognosis for advanced melanoma is rather poor due to its strong resistance to conventional chemotherapeutics. Nanomaterials are at the cutting edge of the rapidly developing area of nanomedicine. The potential of nanoparticles for use as carrier in cancer drug delivery is infinite with novel applications constantly being tested. The noncarrier use of cerium oxide nanoparticles (CNPs) is a novel and promising approach, as those particles per se show an anticancer activity via their oxygen vacancy-mediated chemical reactivity. RESULTS In this study, the question was addressed of whether the use of CNPs might be a valuable tool to counteract the invasive capacity and metastasis of melanoma cells in the future. Therefore, the effect of those nanoparticles on human melanoma cells was investigated in vitro and in vivo. Concentrations of polymer-coated CNPs being nontoxic for stromal cells showed a cytotoxic, proapoptotic, and anti-invasive capacity on melanoma cells. In vivo xenograft studies with immunodeficient nude mice showed a decrease of tumor weight and volume after treatment with CNPs. INNOVATION In summary, the redox-active CNPs have selective pro-oxidative and antioxidative properties, and this study is the first to show that CNPs prevent tumor growth in vivo. CONCLUSION The application of redox-active CNPs may form the basis of new paradigms in the treatment and prevention of cancers.
Collapse
Affiliation(s)
- Lirija Alili
- Medical Faculty, Institute of Biochemistry & Molecular Biology I, Heinrich-Heine-University, 40225 Duesseldorf, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Meyer C, Liu Y, Dooley S. Caveolin and TGF-β entanglements. J Cell Physiol 2013; 228:2097-102. [DOI: 10.1002/jcp.24380] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 03/26/2013] [Indexed: 01/02/2023]
Affiliation(s)
- Christoph Meyer
- Medical Faculty Mannheim, Section Molecular Hepatology, Department of Medicine II; Heidelberg University; Mannheim Germany
| | - Yan Liu
- Medical Faculty Mannheim, Section Molecular Hepatology, Department of Medicine II; Heidelberg University; Mannheim Germany
- Department of Molecular Cell Biology and Centre for Biomedical Genetics; Leiden University Medical Center; RC Leiden The Netherlands
| | - Steven Dooley
- Medical Faculty Mannheim, Section Molecular Hepatology, Department of Medicine II; Heidelberg University; Mannheim Germany
| |
Collapse
|
44
|
Meena AS, Sharma A, Kumari R, Mohammad N, Singh SV, Bhat MK. Inherent and acquired resistance to paclitaxel in hepatocellular carcinoma: molecular events involved. PLoS One 2013; 8:e61524. [PMID: 23613870 PMCID: PMC3629035 DOI: 10.1371/journal.pone.0061524] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 03/11/2013] [Indexed: 11/18/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a primary malignancy of the liver and is a major cause of cancer related deaths worldwide. Only 10 to 20% of HCC can be surgically excised. Therefore, chemotherapeutic intervention and treatment is essential for achieving favorable prognosis. However, therapeutic outcome of chemotherapy is generally poor owing to inherent resistance of cancer cells to the treatment or due to development of acquired resistance. To differentiate and delineate the molecular events, we developed drug resistant Hep3B cells (DRC) by treating cells with the increasing concentration of paclitaxel. We also developed a unique single cell clone of Hep3B cells (SCC) by selecting single cell colonies and screening them for resistant phenotype. Interestingly, both DRC and SCC were resistant to paclitaxel in comparison to parental Hep3B cells. We analyzed the contributory factors that may be involved in the development of resistance. As expected, level of P-glycoprotein (P-gp) was elevated in DRC. In addition, Caveolin-1 (Cav-1), Fatty acid synthase (FASN) and Cytochrome P450 (CYP450) protein levels were elevated in DRC whereas in SCC, FASN and CYP450 levels were elevated. Downregulation of these molecules by respective siRNAs and/or by specific pharmacological inhibitors resensitized cells to paclitaxel. Interestingly, these drug resistant cells were also less sensitive to vinblastine, doxorubicin and methotrexate with the exception of cisplatin. Our results suggested that differential levels of P-gp, Cav-1 and FASN play a major role in acquired resistant phenotype whereas FASN level was associated with the presentation of inherent resistant phenotype in HCC.
Collapse
Affiliation(s)
| | - Aanchal Sharma
- National Centre for Cell Science, Ganeshkhind, Pune, India
| | - Ratna Kumari
- National Centre for Cell Science, Ganeshkhind, Pune, India
| | | | | | | |
Collapse
|
45
|
Caveolin-1 up-regulates integrin α2,6-sialylation to promote integrin α5β1-dependent hepatocarcinoma cell adhesion. FEBS Lett 2013; 587:782-7. [PMID: 23416306 DOI: 10.1016/j.febslet.2013.02.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 02/01/2013] [Accepted: 02/03/2013] [Indexed: 11/20/2022]
Abstract
The alterations of integrin glycosylation play a crucial role in tumor metastasis. Our previous studies indicated that caveolin-1 promoted the expression of the key α2,6-sialytransferase ST6Gal-I and fibronectin-mediated adhesion of mouse hepatocarcinoma cell. Herein, we investigated the role of α2,6-sialylated α5-integrin in the adhesion of mouse hepatocarcinoma H22 cell. We demonstrated that caveolin-1 up-regulated cell surface α2,6-linked sialic acid via stimulating ST6Gal-I transcription. Cell surface α2,6-sialylation was required for integrin α5β1-dependent cell adhesion to fibronectin, and an increase in α2,6-linked sialic acid on α5-subunit facilitated fibronectin-mediated focal adhesion kinase phosphorylations, suggesting that α2,6-sialylated α5-subunit promoted integrin α5β1-dependent cell adhesion.
Collapse
|
46
|
Meyer C, Dzieran J, Liu Y, Schindler F, Munker S, Müller A, Coulouarn C, Dooley S. Distinct dedifferentiation processes affect caveolin-1 expression in hepatocytes. Cell Commun Signal 2013; 11:6. [PMID: 23339737 PMCID: PMC3598962 DOI: 10.1186/1478-811x-11-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 12/21/2012] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Dedifferentiation and loss of hepatocyte polarity during primary culture of hepatocytes are major drawbacks for metabolic analyses. As a prominent profibrotic cytokine and potent inducer of epithelial mesenchymal transition (EMT), TGF-β contributes to these processes in liver epithelial cells. Yet, a distinction between culture dependent and TGF-β driven hepatocyte dedifferentiation has not been shown to date. RESULTS Here, we show that in both settings, mesenchymal markers are induced. However, upregulation of Snai1 and downregulation of E-Cadherin are restricted to TGF-β effects, neglecting a full EMT of culture dependent hepatocyte dedifferentiation. Mechanistically, the latter is mediated via FAK/Src/ERK/AKT pathways leading to the induction of the oncogene caveolin-1 (Cav1). Cav1 was recently proposed as a new EMT marker, but our results demonstrate Cav1 is not up-regulated in TGF-β mediated hepatocyte EMT, thus limiting validity of its use for this purpose. Importantly, marking differences on Cav1 expression exist in HCC cell lines. Whereas well differentiated HCC cell lines exhibit low and inducible Cav1 protein levels - by TGF-β in a FAK/Src dependent manner, poorly differentiated cell lines display high Cav1 expression levels which are not further modulated by TGF-β. CONCLUSIONS This study draws a detailed distinction between intrinsic and TGF-β mediated hepatocyte dedifferentiation and elucidates cellular pathways involved. Additionally, by evaluating the regulation of the oncogene Cav1, we provide evidence to argue against Cav1 as a reliable EMT marker.
Collapse
Affiliation(s)
- Christoph Meyer
- Department of Medicine II, Section Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Chunhacha P, Pongrakhananon V, Rojanasakul Y, Chanvorachote P. Caveolin-1 regulates Mcl-1 stability and anoikis in lung carcinoma cells. Am J Physiol Cell Physiol 2012; 302:C1284-92. [PMID: 22277751 DOI: 10.1152/ajpcell.00318.2011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Both caveolin-1 (Cav-1) and Mcl-1 have been implicated in the regulation of cancer cell anoikis, but their relationship and underlying mechanisms of regulation are not known. The present study demonstrated for the first time that Cav-1 regulates Mcl-1 through protein-protein interaction and inhibits its downregulation during cell anoikis in human lung cancer cells. Immunoprecipitation and immunocytochemistry studies showed that Cav-1 interacted with Mcl-1 and prevented it from degradation via the ubiquitin-proteasome pathway. Mcl-1 and Mcl-1-Cav-1 complex were highly elevated in Cav-1-overexpressing cells but were greatly reduced in Cav-1 knockdown cells. Consistent with this finding, we found that Mcl-1 ubiquitination was significantly attenuated by Cav-1 overexpression but increased by Cav-1 knockdown. Together, our results indicate a novel role of Cav-1 in anoikis regulation through Mcl-1 interaction and stabilization, which provides a new insight to the pathogenesis of metastatic lung cancer and its potential treatment.
Collapse
Affiliation(s)
- Preedakorn Chunhacha
- Pharmaceutical Technology (International) Program, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | | | | | | |
Collapse
|