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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.
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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
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Wu J, Di D, Zhao C, Pan Q, Liu Y, Zhang X, Zhao X, Chen H. Clinical Significance of Gli-1 And Caveolin-1 Expression in the
Human Small Cell Lung Cancer. Asian Pac J Cancer Prev 2018; 19:401-406. [PMID: 29479989 PMCID: PMC5980926 DOI: 10.22034/apjcp.2018.19.2.401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Lung cancer is the leading causes of cancer-related deaths around the world. Abnormal activation of the
hedgehog (Hh) signaling pathway has been found to be involved in the occurrence, invasion, and metastasis of cancers.
Autophagy also plays a significant role in the growth and metastasis of cancers. However, the correlation between the
Hh signaling pathway and autophagy in small cell lung cancer (SCLC) is still poorly understood. This study aimed to
investigate the significance of Hh signaling pathway and autophagy in SCLC. Materials and Methods: The expression
of the Hh-induced transcriptional factor, glioma associated oncogene-1 (Gli-1) and the autophagy-related molecule
caveolin-1 (Cav-1) and their clinical significance was performed to detect and assay by immunohistochemistry in tissue
microarray including 70 patients with SCLC. Results: In our study, 47 (67.1%) patients had positive Gli-1 expression,
49 (70.0%) patients had positive Cav-1 expression, and 44 (62.9%) patients had negative fibroblastic Cav-1 expression.
In SCLC, Gli-1 expression increased markedly, and was closely associated with decreased fibroblastic Cav-1 expression.
Furthermore, we also found that Gli-1 expression was closely associated with increased Cav-1 expression. Conclusions:
Our findings suggested that abnormal activation of the Hh signaling pathway is closely related to autophagy in SCLC.
We envision that novel targets may come with the further investigation of Gli-1 and Cav-1 in carcinogenesis of SCLC.
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Affiliation(s)
- Jie Wu
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuha , China.
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3
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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.
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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
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Ma YD, Thiyagarajan V, Tsai MJ, Lue SI, Chia YC, Shyue SK, Weng CF. Pyrogallol abates VSMC migration via modulation of Caveolin-1, matrix metalloproteinase and intima hyperplasia in carotid ligation mouse. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 48:63-75. [PMID: 27768988 DOI: 10.1016/j.etap.2016.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 10/07/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
Migration of vascular smooth muscle cells (VSMCs) contributes to intimal hyperplasia and other vascular diseases. Caveolin-1 (Cav-1) has been recognized as a proliferative inhibitor of VSMCs and is likely to be an important regulator of VSMC migration. The underlying mechanism of pyrogallol on the VSMC migration is not fully understood. This study attempted to dissect the role of Cav-1 and matrix metalloproteinase (MMP) in VSMC migration and to investigate the effect of pyrogallol on VSMC mobility during carotid artery ligation mice. The mRNA expression of MMP-3 and MMP-13 was down-regulated in cultured VSMC prepared from Cav-1-deficient (Cav-1 KO) mice whereas MMP-14 expression was up-regulated. Pyrogallol effectively inhibited the migration of Cav-1 KO VSMC by promoting the expression of tissue inhibitors of metalloproteinase (TIMP)-2. Pyrogallol also inhibited the migration of Cav-1 wild type (WT) VSMC, however, by increasing TIMP-1 expression and repressing MMP-2 activity. In a parallel in vivo study, intra-peritoneal (ip) of pyrogallol to carotid artery ligated mice significantly suppressed intima formation in mice carotid artery. Furthermore, the proMMP-9 activity in pyrogallol-treated mice serum significantly increased from Day 0 to Day 2 and decreased from Day 2 to Day 7 in a time-dependent manner. In addition, WT mice treated with pyrogallol had significantly reduced neointima formation, whereas no differences were observed in Cav-1 knock out (KO) mice. These results suggest that pyrogallol not only inhibited VSMC migration but also effectively diminishes the severity of neointima hyperplasia, implying that pyrogallol possesses potential anti-atherogenic effects for the treatment of vascular diseases.
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Affiliation(s)
- Yu-Dong Ma
- Department of Life Science and the Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan
| | - Varadharajan Thiyagarajan
- Department of Life Science and the Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan
| | - May-Jywan Tsai
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei 11221, Taiwan
| | - Sheng-I Lue
- Department of Life Science and the Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan
| | - Yi-Chen Chia
- Department of Food Science & Technology, Tajen University, Ping Tung Hsien, Taiwan
| | - Song-Kun Shyue
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Ching-Feng Weng
- Department of Life Science and the Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
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Wang Y, Tong J, Chang B, Wang BF, Zhang D, Wang BY. Effects of ethanol on the expression of caveolin-1 in HepG2 cells. Mol Med Rep 2015; 11:4409-13. [PMID: 25651074 DOI: 10.3892/mmr.2015.3296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 06/09/2014] [Indexed: 11/05/2022] Open
Abstract
This study aimed to investigate the effects of ethanol on the expression of caveolin‑1 (CAV‑1) in HepG2 hepatocarcinoma cells. Ethanol‑treated HepG2 cells were investigated using the in vitro model to determine whether ethanol can influence the expression of CAV‑1. Cell viability was measured using the colorimetric 3‑(4, 5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide (MTT) and lactate dehydrogenase (LDH) assays. Expression of CAV‑1 was detected using western blot analysis. Quantitative PCR (qPCR) was used to determine CAV‑1 mRNA levels. The distribution of CAV‑1 in HepG2 cells was analyzed using immunofluorescence. The MTT assay results revealed that cell viability was not altered at ethanol concentrations of <1.0%, while ethanol concentrations >1.0% caused cell shedding, but not cell fragmentation. Western blot analysis showed significant differences in the levels of CAV‑1 expression between the control group and the 1.0% ethanol‑treated group at 6, 12 and 24 h (all P<0.05). qPCR showed significant differences in the expression levels of caveolin‑1 mRNA between the control group and the 1.0% ethanol‑treated group at 6 h, 12 h and 24 h (all P<0.05). Immunofluorescence demonstrated that CAV‑1 was distributed discontinuously at the boundaries of HepG2 cells. The results indicate that ethanol may increase the expression of CAV‑1 in HepG2 cells.
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Affiliation(s)
- Ying Wang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jing Tong
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Bing Chang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Bai-Fang Wang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Dai Zhang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Bing-Yuan Wang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Conroy BD, Herek TA, Shew TD, Latner M, Larson JJ, Allen L, Davis PH, Helikar T, Cutucache CE. Design, Assessment, and in vivo Evaluation of a Computational Model Illustrating the Role of CAV1 in CD4(+) T-lymphocytes. Front Immunol 2014; 5:599. [PMID: 25538703 PMCID: PMC4257089 DOI: 10.3389/fimmu.2014.00599] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/07/2014] [Indexed: 01/08/2023] Open
Abstract
Caveolin-1 (CAV1) is a vital scaffold protein heterogeneously expressed in both healthy and malignant tissue. We focus on the role of CAV1 when overexpressed in T-cell leukemia. Previously, we have shown that CAV1 is involved in cell-to-cell communication, cellular proliferation, and immune synapse formation; however, the molecular mechanisms have not been elucidated. We hypothesize that the role of CAV1 in immune synapse formation contributes to immune regulation during leukemic progression, thereby warranting studies of the role of CAV1 in CD4+ T-cells in relation to antigen-presenting cells. To address this need, we developed a computational model of a CD4+ immune effector T-cell to mimic cellular dynamics and molecular signaling under healthy and immunocompromised conditions (i.e., leukemic conditions). Using the Cell Collective computational modeling software, the CD4+ T-cell model was constructed and simulated under CAV1+/+, CAV1+/−, and CAV1−/− conditions to produce a hypothetical immune response. This model allowed us to predict and examine the heterogeneous effects and mechanisms of CAV1 in silico. Experimental results indicate a signature of molecules involved in cellular proliferation, cell survival, and cytoskeletal rearrangement that were highly affected by CAV1 knock out. With this comprehensive model of a CD4+ T-cell, we then validated in vivo protein expression levels. Based on this study, we modeled a CD4+ T-cell, manipulated gene expression in immunocompromised versus competent settings, validated these manipulations in an in vivo murine model, and corroborated acute T-cell leukemia gene expression profiles in human beings. Moreover, we can model an immunocompetent versus an immunocompromised microenvironment to better understand how signaling is regulated in patients with leukemia.
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Affiliation(s)
- Brittany D Conroy
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Tyler A Herek
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Timothy D Shew
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Matthew Latner
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Joshua J Larson
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Laura Allen
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Paul H Davis
- Department of Biology, University of Nebraska at Omaha , Omaha, NE , USA
| | - Tomáš Helikar
- Department of Biochemistry, University of Nebraska at Lincoln , Lincoln, NE , USA
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7
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Caveolin-1 regulates metastatic behaviors of anoikis resistant lung cancer cells. Mol Cell Biochem 2014; 399:291-302. [PMID: 25351339 DOI: 10.1007/s11010-014-2255-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/17/2014] [Indexed: 12/24/2022]
Abstract
Caveolin-1 (Cav-1), a protein component of cellular membrane, has been reported to regulate several cancer cell behaviors. However, its role on cancer metastasis in anoikis resistant cells is unknown. The present study aimed to investigate the correlation between Cav-1 level and aggressive behaviors of anoikis resistant cancer cells. Cav-1 and ShRNACav-1 stably transfected lung carcinoma cells, and anoikis resistant H_AR1 and H_AR2 cells expressing different levels of Cav-1 were subjected to anoikis, cell growth, anchorage-independent growth, extracellular matrix adhesion, cisplatin sensitivity, migration, and invasion assays. The correlations between cellular Cav-1 level and such cancer aggressive behaviors were evaluated. Results revealed that anoikis resistant lung cancer cells as well as Cav-1 overexpressing cells exhibit a significant increase in anchorage-independent growth, extracellular matrix adhesion, migration, and invasion in comparison to those of their parental H460 cells. Knock-down of Cav-1 by ShRNA transfection was able to reverse such metastatic potentials in H_AR2 cells. In addition, basal Cav-1 level of these cells was positively correlated with anoikis resistance, anchorage-independent growth, migration, and invasion behaviors of the cells, whereas such Cav-1 level showed poor correlation to cisplatin sensitivity, cell adhesion, and growth in attached condition. These findings give more information regarding role of Cav-1 in the regulation of behaviors of lung cancer cells.
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8
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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.
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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
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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.
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Senetta R, Stella G, Pozzi E, Sturli N, Massi D, Cassoni P. Caveolin-1 as a promoter of tumour spreading: when, how, where and why. J Cell Mol Med 2013; 17:325-36. [PMID: 23521716 PMCID: PMC3823014 DOI: 10.1111/jcmm.12030] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 01/15/2013] [Indexed: 11/29/2022] Open
Abstract
Caveolae are non-clathrin invaginations of the plasma membrane in most cell types; they are involved in signalling functions and molecule trafficking, thus modulating several biological functions, including cell growth, apoptosis and angiogenesis. The major structural protein in caveolae is caveolin-1, which is known to act as a key regulator in cancer onset and progression through its role as a tumour suppressor. Caveolin-1 can also promote cell proliferation, survival and metastasis as well as chemo- and radioresistance. Here, we discuss recent findings and novel concepts that support a role for caveolin-1 in cancer development and its distant spreading. We also address the potential application of caveolin-1 in tumour therapy and diagnosis.
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Affiliation(s)
- Rebecca Senetta
- Department of Medical Sciences, University of Turin, Turin, Italy
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11
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Stallings-Mann ML, Waldmann J, Zhang Y, Miller E, Gauthier ML, Visscher DW, Downey GP, Radisky ES, Fields AP, Radisky DC. Matrix metalloproteinase induction of Rac1b, a key effector of lung cancer progression. Sci Transl Med 2013; 4:142ra95. [PMID: 22786680 DOI: 10.1126/scitranslmed.3004062] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lung cancer is more deadly than colon, breast, and prostate cancers combined, and treatment improvements have failed to improve prognosis significantly. Here, we identify a critical mediator of lung cancer progression, Rac1b, a tumor-associated protein with cell-transforming properties that are linked to the matrix metalloproteinase (MMP)-induced epithelial-mesenchymal transition (EMT) in lung epithelial cells. We show that expression of mouse Rac1b in lung epithelial cells of transgenic mice stimulated EMT and spontaneous tumor development and that activation of EMT by MMP-induced expression of Rac1b gave rise to lung adenocarcinoma in the transgenic mice through bypassing oncogene-induced senescence. Rac1b is expressed abundantly in stages 1 and 2 of human lung adenocarcinomas and, hence, is an attractive molecular target for the development of new therapies that prevent progression to later-stage lung cancers.
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12
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Long-term hydrogen peroxide exposure potentiates anoikis resistance and anchorage-independent growth in lung carcinoma cells. Cell Biol Int 2012; 36:1055-66. [DOI: 10.1042/cbi20120111] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Hill MM, Daud NH, Aung CS, Loo D, Martin S, Murphy S, Black DM, Barry R, Simpson F, Liu L, Pilch PF, Hancock JF, Parat MO, Parton RG. Co-regulation of cell polarization and migration by caveolar proteins PTRF/Cavin-1 and caveolin-1. PLoS One 2012; 7:e43041. [PMID: 22912783 PMCID: PMC3418245 DOI: 10.1371/journal.pone.0043041] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/16/2012] [Indexed: 11/18/2022] Open
Abstract
Caveolin-1 and caveolae are differentially polarized in migrating cells in various models, and caveolin-1 expression has been shown to quantitatively modulate cell migration. PTRF/cavin-1 is a cytoplasmic protein now established to be also necessary for caveola formation. Here we tested the effect of PTRF expression on cell migration. Using fluorescence imaging, quantitative proteomics, and cell migration assays we show that PTRF/cavin-1 modulates cellular polarization, and the subcellular localization of Rac1 and caveolin-1 in migrating cells as well as PKCα caveola recruitment. PTRF/cavin-1 quantitatively reduced cell migration, and induced mesenchymal epithelial reversion. Similar to caveolin-1, the polarization of PTRF/cavin-1 was dependent on the migration mode. By selectively manipulating PTRF/cavin-1 and caveolin-1 expression (and therefore caveola formation) in multiple cell systems, we unveil caveola-independent functions for both proteins in cell migration.
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Affiliation(s)
- Michelle M. Hill
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Queensland, Australia
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Noor Huda Daud
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | - Cho Sanda Aung
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | - Dorothy Loo
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Sally Martin
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Samantha Murphy
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Debra M. Black
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Rachael Barry
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Fiona Simpson
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Libin Liu
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Paul F. Pilch
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - John F. Hancock
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Marie-Odile Parat
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
- * E-mail: (RP); (M-OP)
| | - Robert G. Parton
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
- Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, Queensland, Australia
- * E-mail: (RP); (M-OP)
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14
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Caveolin-1 interferes cell growth of lung cancer NCI-H446 cell through the interactions with phospho-ERK1/2, estrogen receptor and progestin receptor. Biomed Pharmacother 2012; 66:242-8. [DOI: 10.1016/j.biopha.2011.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 11/21/2011] [Indexed: 02/05/2023] Open
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15
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Song Y, Xue L, Du S, Sun M, Hu J, Hao L, Gong L, Yeh D, Xiong H, Shao S. Caveolin-1 knockdown is associated with the metastasis and proliferation of human lung cancer cell line NCI-H460. Biomed Pharmacother 2012; 66:439-47. [PMID: 22898083 DOI: 10.1016/j.biopha.2012.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 03/01/2012] [Indexed: 12/30/2022] Open
Abstract
Caveolin-1 (CAV-1), one component of caveolae, involves in multiple cellular processes and signal transductions. We previously showed that the expression of CAV-1 gene in NCI-H446 cells inhibited cell proliferation and promoted cell metastasis. Here we explore the function of CAV-1 on tumor growth and metastasis by using NCI-H460 in vitro. First, we established NCI-H460 cell line, which CAV-1 was stably knockdown. Then we investigated the effects of CAV-1 on the morphology, proliferation, cell cycle and metastasis potential for NCI-H460 cell by crystal violet stains, CCK-8, colony formation, flow cytometry, scratch-wound assay and transwell assay. Western blot was used to examine the expression changes of cyclin D1, PCNA, E-cadherin and β-catenin. Our results showed stable knockdown of CAV-1 inhibited the proliferation of NCI-H460 cells. Cell cycle of the transfected cells was arrested in G1/S phase and the expressions of cyclin D1 and PCNA protein were downregulated. Downregulation of CAV-1 promoted the migration and invasion abilities of NCI-H460 cells in vitro. The expression of β-catenin increased and the level of E-cadherin decreased. In summary, our findings provide experimental evidence that CAV-1 may function as a proproliferative and antimetastatic gene in NCI-H460 cell line.
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Affiliation(s)
- Yang Song
- Department of Histology and Embryology, Dalian Medical University, Dalian, China
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16
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Caveolin-1 silencing arrests the proliferation of metastatic lung cancer cells through the inhibition of STAT3 signaling. Cell Signal 2012; 24:1390-7. [PMID: 22406084 DOI: 10.1016/j.cellsig.2012.02.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 02/01/2012] [Accepted: 02/22/2012] [Indexed: 01/22/2023]
Abstract
Cav-1 is an essential structural constituent of caveolae implicated in mitogenic signaling, oncogenesis, angiogenesis, neurodegenerative diseases and senescence. Its role as a tumor suppressor gene or as a tumor promoter seems to strictly depend on cell type and tumor stage/grade. The high expression of Cav-1 in some tumors in vivo, amongst which lung adenocarcinoma, is associated with increased tumor aggressiveness, metastatic potential and suppression of apoptosis. In the present study we investigated the role of Cav-1 in metastatic lung cancer proliferation. Cell lines were from metastatic lesions of lung adenocarcinoma (RAL) and of small cell lung carcinoma (SCLC-R1), in which we found Cav-1 expressed at high levels. Results show that siRNA-mediated down-regulation of Cav-1 caused stable arrest of proliferation in both cell lines. A marked reduction of cyclin D1 and of CDK4 expression was evident in the cells transfected with Cav-1 siRNA and consequently of phospho-Rb on ser(795) and ser(780). Furthermore, a significant decrease of the expression of phosphorylated AKT and of its down-stream effectors phosphorylated ERK and STAT3 was evident. Together, these findings indicate that Cav-1 silencing induces an arrest of human metastatic lung proliferation in vitro by a new inhibitory pathway in lung cancer and provide new insights into the molecular mechanisms underlying the pro-survival and tumor-promoting functions of Cav-1.
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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: 33] [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.
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Affiliation(s)
- Preedakorn Chunhacha
- Pharmaceutical Technology (International) Program, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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Linge A, Meleady P, Henry M, Clynes M, Kasper M, Barth K. Bleomycin treatment of A549 human lung cancer cells results in association of MGr1-Ag and caveolin-1 in lipid rafts. Int J Biochem Cell Biol 2011; 43:98-105. [DOI: 10.1016/j.biocel.2010.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 09/09/2010] [Accepted: 10/01/2010] [Indexed: 12/30/2022]
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