1
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Kang Z, Luo Y, Xiao E, Li Q, Wang L. CD151 and prostate cancer progression: A review of current literature. Asia Pac J Clin Oncol 2022. [DOI: 10.1111/ajco.13890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 09/27/2022] [Accepted: 10/03/2022] [Indexed: 12/05/2022]
Affiliation(s)
- Zhen Kang
- Department of RadiologyTongji HospitalTongji Medical CollegeHuazhong University of Science and Technology WuhanChina
| | - Yanping Luo
- Department of Immunology School of Basic Medical Sciences Lanzhou University Lanzhou China
| | - Enhua Xiao
- Department of Radiology The Second Xiangya Hospital Central South University Changsha China
| | - Qiubai Li
- Department of Radiology University Hospitals Cleveland Medical Center Cleveland Ohio USA
| | - Liang Wang
- Department of RadiologyTongji HospitalTongji Medical CollegeHuazhong University of Science and Technology WuhanChina
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2
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Erfani S, Hua H, Pan Y, Zhou BP, Yang XH. The Context-Dependent Impact of Integrin-Associated CD151 and Other Tetraspanins on Cancer Development and Progression: A Class of Versatile Mediators of Cellular Function and Signaling, Tumorigenesis and Metastasis. Cancers (Basel) 2021; 13:cancers13092005. [PMID: 33919420 PMCID: PMC8122392 DOI: 10.3390/cancers13092005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/18/2021] [Accepted: 04/01/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Tetraspanins are a family of molecules abundantly expressed on the surface of normal or tumor cells. They have been implicated in recruiting or sequestering key molecular regulators of malignancy of a variety of human cancers, including breast and lung cancers, glioblastoma and leukemia. Yet, how their actions take place remains mysterious due to a lack of traditional platform for molecular interactions. The current review digs into this mystery by examining findings from recent studies of multiple tetraspanins, particularly CD151. The molecular basis for differential impact of tetraspanins on tumor development, progression, and spreading to secondary sites is highlighted, and the complexity and plasticity of their control over tumor cell activities and interaction with their surroundings is discussed. Finally, an outlook is provided regarding tetraspanins as candidate biomarkers and targets for the diagnosis and treatment of human cancer. Abstract As a family of integral membrane proteins, tetraspanins have been functionally linked to a wide spectrum of human cancers, ranging from breast, colon, lung, ovarian, prostate, and skin carcinomas to glioblastoma. CD151 is one such prominent member of the tetraspanin family recently suggested to mediate tumor development, growth, and progression in oncogenic context- and cell lineage-dependent manners. In the current review, we summarize recent advances in mechanistic understanding of the function and signaling of integrin-associated CD151 and other tetraspanins in multiple cancer types. We also highlight emerging genetic and epigenetic evidence on the intrinsic links between tetraspanins, the epithelial-mesenchymal transition (EMT), cancer stem cells (CSCs), and the Wnt/β-catenin pathway, as well as the dynamics of exosome and cellular metabolism. Finally, we discuss the implications of the highly plastic nature and epigenetic susceptibility of CD151 expression, function, and signaling for clinical diagnosis and therapeutic intervention for human cancer.
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Affiliation(s)
- Sonia Erfani
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA;
- Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY 40536, USA
- Pharmacy Department, St. Elizabeth Healthcare, Edgewood, KY 41017, USA
| | - Hui Hua
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, China; (H.H.); (Y.P.)
- Provincial Hospital, Hefei, Anhui 230001, China
| | - Yueyin Pan
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, China; (H.H.); (Y.P.)
- Provincial Hospital, Hefei, Anhui 230001, China
| | - Binhua P. Zhou
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536, USA;
| | - Xiuwei H. Yang
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA;
- Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY 40536, USA
- Correspondence: ; Tel.: +1-859-323-1996
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3
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Wang YA, Sfakianos J, Tewari AK, Cordon-Cardo C, Kyprianou N. Molecular tracing of prostate cancer lethality. Oncogene 2020; 39:7225-7238. [PMID: 33046797 DOI: 10.1038/s41388-020-01496-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/16/2020] [Accepted: 09/28/2020] [Indexed: 01/14/2023]
Abstract
Prostate cancer is diagnosed mostly in men over the age of 50 years, and has favorable 5-year survival rates due to early cancer detection and availability of curative surgical management. However, progression to metastasis and emergence of therapeutic resistance are responsible for the majority of prostate cancer mortalities. Recent advancement in sequencing technologies and computational capabilities have improved the ability to organize and analyze large data, thus enabling the identification of novel biomarkers for survival, metastatic progression and patient prognosis. Large-scale sequencing studies have also uncovered genetic and epigenetic signatures associated with prostate cancer molecular subtypes, supporting the development of personalized targeted-therapies. However, the current state of mainstream prostate cancer management does not take full advantage of the personalized diagnostic and treatment modalities available. This review focuses on interrogating biomarkers of prostate cancer progression, including gene signatures that correspond to the acquisition of tumor lethality and those of predictive and prognostic value in progression to advanced disease, and suggest how we can use our knowledge of biomarkers and molecular subtypes to improve patient treatment and survival outcomes.
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Affiliation(s)
- Yuanshuo Alice Wang
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - John Sfakianos
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ashutosh K Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Carlos Cordon-Cardo
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Natasha Kyprianou
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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4
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Zhang Y, Wang J, Ding Y, Zhang J, Xu Y, Xu J, Zheng S, Yang H. Migrasome and Tetraspanins in Vascular Homeostasis: Concept, Present, and Future. Front Cell Dev Biol 2020; 8:438. [PMID: 32612990 PMCID: PMC7308473 DOI: 10.3389/fcell.2020.00438] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/11/2020] [Indexed: 12/18/2022] Open
Abstract
Cell migration plays a critical role in vascular homeostasis. Under noxious stimuli, endothelial cells (ECs) migration always contributes to vascular repair, while enhanced migration of vascular smooth muscle cells (VSMCs) will lead to pathological vascular remodeling. Moreover, vascular activities are involved in communication between ECs and VSMCs, between ECs and immune cells, et al. Recently, Ma et al. (2015) discovered a novel migration-dependent organelle “migrasome,” which mediated release of cytoplasmic contents, and this process was defined as “migracytosis.” The formation of migrasome is precisely regulated by tetraspanins (TSPANs), cholesterol and integrins. Migrasomes can be taken up by neighboring cells, and migrasomes are distributed in many kinds of cells and tissues, such as in blood vessel, human serum, and in ischemic brain of human and mouse. In addition, the migrasome elements TSPANs are wildly expressed in cardiovascular system. Therefore, TSPANs, migrasomes and migracytosis might play essential roles in regulating vascular homeostasis. In this review, we will discuss the discoveries of migration-dependent migrasome and migracytosis, migrasome formation, the basic differences between migrasomes and exosomes, the distributions and functions of migrasome, the functions of migrasome elements TSPANs in vascular biology, and discuss the possible roles of migrasomes and migracytosis in vascular homeostasis.
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Affiliation(s)
- Yaxing Zhang
- Department of Traditional Chinese Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Wang
- Department of Ophthalmology, Qingdao Fubai Eye Hospital, Qingdao, China
| | - Yungang Ding
- Department of Ophthalmology, Qingdao Ludong Eye Hospital, Qingdao, China
| | - Jiongshan Zhang
- Department of Traditional Chinese Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Xu
- Department of Gastrointestinal Endoscopy, Guangzhou Cadre Health Management Center/Guangzhou Eleventh People's Hospital, Guangzhou, China
| | - Jingting Xu
- Biofeedback Laboratory, Xinhua College of Sun Yat-sen University, Guangzhou, China
| | - Shuhui Zheng
- Research Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongzhi Yang
- Department of Traditional Chinese Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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5
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Wong AH, Tran T. CD151 in Respiratory Diseases. Front Cell Dev Biol 2020; 8:64. [PMID: 32117989 PMCID: PMC7020194 DOI: 10.3389/fcell.2020.00064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/22/2020] [Indexed: 12/25/2022] Open
Abstract
The tetraspanin, Cluster of Differentiation 151 (CD151), is ubiquitously expressed in adult tissue, especially in the lungs where it has been implicated in lung cancer, asthma, influenza, and idiopathic pulmonary fibrosis (IPF). CD151 interacts with laminin-binding integrins and growth factor receptors, and is reported in cancer-promoting processes such as tumor initiation, metastasis, and angiogenesis. In asthma, CD151 was shown to promote airways hyperresponsiveness through calcium signaling whereas in influenza, CD151 was shown to be a novel host factor for nuclear viral export signaling. Furthermore, CD151 was shown to be associated with increased disease severity and poorer survival outcome in asthma and lung cancer, respectively. In this review, we provide an update on the current understanding of CD151 with regards to its contribution to lung pathophysiology. We also summarize factors that have been shown to regulate CD151 expression and identify key areas that need to be taken into consideration for its utility as a screening or prognostic tool in disease management and/or as a therapeutic target for the treatment of lung diseases.
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Affiliation(s)
- Amanda H Wong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Thai Tran
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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6
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Purushothaman G, Thiruvenkatam V. High Yield Expression of Recombinant CD151 in E. coli and a Structural Insight into Cholesterol Binding Domain. Mol Biotechnol 2019; 61:905-915. [PMID: 31541430 DOI: 10.1007/s12033-019-00212-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
CD151 is an abundantly expressed eukaryotic transmembrane protein on the cell surface. It is involved in cell adhesion, angiogenesis and signal transduction as well in disease conditions such as cancer and viral infections. However, the molecular mechanism of CD151 activation is poorly understood due to the lack of structural information. By considering the difficulties in expressing the membrane protein in E. coli, herein we introduce the strategic design for the effective expression of recombinant CD151 protein in E. coli with high yield, that would aid for the structural studies. CD151 having four transmembrane domain (TMD's) along with small and a large extracellular loop (LEL) is constructed in parts to enhance the soluble expression of the protein attached with fusion tag. This has led to the high yield of the recombinant CD151 protein in the designed constructs. The recombinant CD151 protein is characterized and confirmed by western blot, CD and Mass peptide fingerprint. The molecular dynamics simulations (MDS) for the full-length CD151 shows conformational changes in the LEL of the protein in the presence and absence of cholesterol and indicate the certainty of closed and open conformation of CD151 based on cholesterol binding. The MDS results have led to the understanding of the possible underlying mechanism for the activation of the CD151 protein.
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Affiliation(s)
- Gayathri Purushothaman
- Discipline of Biological Engineering, Indian Institute of Technology Gandhinagar, Simkheda, Palaj, Gandhinagar, 382355, Gujarat, India
| | - Vijay Thiruvenkatam
- Discipline of Biological Engineering, Indian Institute of Technology Gandhinagar, Simkheda, Palaj, Gandhinagar, 382355, Gujarat, India.
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7
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Testa U, Castelli G, Pelosi E. Cellular and Molecular Mechanisms Underlying Prostate Cancer Development: Therapeutic Implications. MEDICINES (BASEL, SWITZERLAND) 2019; 6:E82. [PMID: 31366128 PMCID: PMC6789661 DOI: 10.3390/medicines6030082] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/19/2019] [Accepted: 07/25/2019] [Indexed: 12/15/2022]
Abstract
Prostate cancer is the most frequent nonskin cancer and second most common cause of cancer-related deaths in man. Prostate cancer is a clinically heterogeneous disease with many patients exhibiting an aggressive disease with progression, metastasis, and other patients showing an indolent disease with low tendency to progression. Three stages of development of human prostate tumors have been identified: intraepithelial neoplasia, adenocarcinoma androgen-dependent, and adenocarcinoma androgen-independent or castration-resistant. Advances in molecular technologies have provided a very rapid progress in our understanding of the genomic events responsible for the initial development and progression of prostate cancer. These studies have shown that prostate cancer genome displays a relatively low mutation rate compared with other cancers and few chromosomal loss or gains. The ensemble of these molecular studies has led to suggest the existence of two main molecular groups of prostate cancers: one characterized by the presence of ERG rearrangements (~50% of prostate cancers harbor recurrent gene fusions involving ETS transcription factors, fusing the 5' untranslated region of the androgen-regulated gene TMPRSS2 to nearly the coding sequence of the ETS family transcription factor ERG) and features of chemoplexy (complex gene rearrangements developing from a coordinated and simultaneous molecular event), and a second one characterized by the absence of ERG rearrangements and by the frequent mutations in the E3 ubiquitin ligase adapter SPOP and/or deletion of CDH1, a chromatin remodeling factor, and interchromosomal rearrangements and SPOP mutations are early events during prostate cancer development. During disease progression, genomic and epigenomic abnormalities accrued and converged on prostate cancer pathways, leading to a highly heterogeneous transcriptomic landscape, characterized by a hyperactive androgen receptor signaling axis.
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Affiliation(s)
- Ugo Testa
- Department of Oncology, Istituto Superiore di Sanità, Vaile Regina Elena 299, 00161 Rome, Italy.
| | - Germana Castelli
- Department of Oncology, Istituto Superiore di Sanità, Vaile Regina Elena 299, 00161 Rome, Italy
| | - Elvira Pelosi
- Department of Oncology, Istituto Superiore di Sanità, Vaile Regina Elena 299, 00161 Rome, Italy
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8
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Vences-Catalán F, Levy S. Immune Targeting of Tetraspanins Involved in Cell Invasion and Metastasis. Front Immunol 2018; 9:1277. [PMID: 29946318 PMCID: PMC6006414 DOI: 10.3389/fimmu.2018.01277] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/22/2018] [Indexed: 01/15/2023] Open
Abstract
Metastasis is the ultimate consequence of cancer progression and the cause of patients’ death across different cancer types. Patients with initial diagnosis of distant disease have a worst 5-year survival compared to patients with localized disease. Therapies that target primary tumors fail to eradicate distant dissemination of cancer. Recently, immunotherapies have improved the survival of patients with metastatic disease, such as melanoma and lung cancer. However, only a fraction of patients responds to immunotherapy modalities that target the host immune system. The need to identify new druggable targets that inhibit or prevent metastasis is, therefore, much needed. Tetraspanins have emerged as key players in regulating cell migration, invasion, and metastasis. By serving as molecular adaptors that cluster adhesion receptors, signaling molecules, and cell surface receptors; tetraspanins are involved in all steps of the metastatic cascade. They regulate cell proliferation, participate in EMT transition, modulate integrin-mediated cell adhesion, and participate in angiogenesis and invasion processes. Tetraspanins have also been shown to modulate metastasis indirectly through exosomes and by regulating cellular interactions in the immune system. Importantly, targeting individual tetraspanin with antibodies has impacted tumor progression. This review will focus on the contribution of tetraspanins to the metastatic process and their potential as therapeutic tumor targets.
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Affiliation(s)
- Felipe Vences-Catalán
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Shoshana Levy
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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9
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Malla RR, Pandrangi S, Kumari S, Gavara MM, Badana AK. Exosomal tetraspanins as regulators of cancer progression and metastasis and novel diagnostic markers. Asia Pac J Clin Oncol 2018; 14:383-391. [PMID: 29575602 DOI: 10.1111/ajco.12869] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 01/12/2018] [Indexed: 12/19/2022]
Abstract
Exosomes are cell-cell communicators emerging as a new paradigm for noninvasive diagnosis and prognosis of treatment response. Exosomal tetraspanin proteins like CD63, CD9 and CD81 play a critical role in sorting, selective recruitment of biomolecules, target selection, cell-specific entry, capturing, angiogenesis and vasculogenesis. These tetraspanins are being used as markers for oral, colorectal and colon cancers and glioblastoma. However, exosomal markers with robust specificity for early detection of carcinomas are the furthest along. EXO CARTA database shows the presence of CD151 in exosomes of colorectal, melanoma, ovarian and prostate cancers. CD151 preferentially targets exosomes to lung, lymph node and stroma cells. The present review discussed the possible role of tetraspanins in the formation, cargo selection, target selection and uptake of exosomes and suggests exciting new directions for future research.
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Affiliation(s)
- Rama Rao Malla
- Department of Biochemistry, Cancer Biology Lab, Institute of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be university), Visakhapatnam, India
| | - Santhi Pandrangi
- Department of Biochemistry, Cancer Biology Lab, Institute of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be university), Visakhapatnam, India
| | - Seema Kumari
- Department of Biochemistry, Cancer Biology Lab, Institute of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be university), Visakhapatnam, India
| | - Murali Mohan Gavara
- Department of Biochemistry, Cancer Biology Lab, Institute of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be university), Visakhapatnam, India
| | - Anil Kumar Badana
- Department of Biochemistry, Cancer Biology Lab, Institute of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be university), Visakhapatnam, India
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10
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Seu L, Tidwell C, Timares L, Duverger A, Wagner FH, Goepfert PA, Westfall AO, Sabbaj S, Kutsch O. CD151 Expression Is Associated with a Hyperproliferative T Cell Phenotype. THE JOURNAL OF IMMUNOLOGY 2017; 199:3336-3347. [PMID: 28954890 DOI: 10.4049/jimmunol.1700648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/28/2017] [Indexed: 02/06/2023]
Abstract
The tetraspanin CD151 is a marker of aggressive cell proliferation and invasiveness for a variety of cancer types. Given reports of CD151 expression on T cells, we explored whether CD151 would mark T cells in a hyperactivated state. Consistent with the idea that CD151 could mark a phenotypically distinct T cell subset, it was not uniformly expressed on T cells. CD151 expression frequency was a function of the T cell lineage (CD8 > CD4) and a function of the memory differentiation state (naive T cells < central memory T cells < effector memory T cells < T effector memory RA+ cells). CD151 and CD57, a senescence marker, defined the same CD28- T cell populations. However, CD151 also marked a substantial CD28+ T cell population that was not marked by CD57. Kinome array analysis demonstrated that CD28+CD151+ T cells form a subpopulation with a distinct molecular baseline and activation phenotype. Network analysis of these data revealed that cell cycle control and cell death were the most altered process motifs in CD28+CD151+ T cells. We demonstrate that CD151 in T cells is not a passive marker, but actively changed the cell cycle control and cell death process motifs of T cells. Consistent with these data, long-term T cell culture experiments in the presence of only IL-2 demonstrated that independent of their CD28 expression status, CD151+ T cells, but not CD151- T cells, would exhibit an Ag-independent, hyperresponsive proliferation phenotype. Not unlike its reported function as a tumor aggressiveness marker, CD151 in humans thus marks and enables hyperproliferative T cells.
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Affiliation(s)
- Lillian Seu
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Christopher Tidwell
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Laura Timares
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Alexandra Duverger
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Frederic H Wagner
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Paul A Goepfert
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Andrew O Westfall
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Steffanie Sabbaj
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Olaf Kutsch
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
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11
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Functional importance of PP2A regulatory subunit loss in breast cancer. Breast Cancer Res Treat 2017; 166:117-131. [DOI: 10.1007/s10549-017-4403-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 07/15/2017] [Indexed: 11/25/2022]
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12
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Munkley J, McClurg UL, Livermore KE, Ehrmann I, Knight B, Mccullagh P, Mcgrath J, Crundwell M, Harries LW, Leung HY, Mills IG, Robson CN, Rajan P, Elliott DJ. The cancer-associated cell migration protein TSPAN1 is under control of androgens and its upregulation increases prostate cancer cell migration. Sci Rep 2017; 7:5249. [PMID: 28701765 PMCID: PMC5507901 DOI: 10.1038/s41598-017-05489-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 05/30/2017] [Indexed: 02/06/2023] Open
Abstract
Cell migration drives cell invasion and metastatic progression in prostate cancer and is a major cause of mortality and morbidity. However the mechanisms driving cell migration in prostate cancer patients are not fully understood. We previously identified the cancer-associated cell migration protein Tetraspanin 1 (TSPAN1) as a clinically relevant androgen regulated target in prostate cancer. Here we find that TSPAN1 is acutely induced by androgens, and is significantly upregulated in prostate cancer relative to both normal prostate tissue and benign prostate hyperplasia (BPH). We also show for the first time, that TSPAN1 expression in prostate cancer cells controls the expression of key proteins involved in cell migration. Stable upregulation of TSPAN1 in both DU145 and PC3 cells significantly increased cell migration and induced the expression of the mesenchymal markers SLUG and ARF6. Our data suggest TSPAN1 is an androgen-driven contributor to cell survival and motility in prostate cancer.
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Affiliation(s)
- Jennifer Munkley
- Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, UK.
| | - Urszula L McClurg
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Karen E Livermore
- Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - Ingrid Ehrmann
- Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - Bridget Knight
- NIHR Exeter Clinical Research Facility, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Paul Mccullagh
- Department of Pathology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - John Mcgrath
- Exeter Surgical Health Services Research Unit, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Malcolm Crundwell
- Department of Urology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Lorna W Harries
- Institute of Biomedical and Clinical Sciences, University of Exeter, Devon, UK
| | - Hing Y Leung
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Ian G Mills
- Prostate Cancer Research Group, Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo and Oslo University Hospitals, Forskningsparken, Gaustadalléen 21, N-0349, Oslo, Norway
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital HE - Norwegian Radium Hospital, Montebello, Ian G. Mills, NO-0424, Oslo, Norway
- Movember/Prostate Cancer UK Centre of Excellence for Prostate Cancer Research, Centre for Cancer Research and Cell Biology (CCRCB), Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - Craig N Robson
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Prabhakar Rajan
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London, EC1M 6BQ, UK
| | - David J Elliott
- Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, UK
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13
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CD81 as a tumor target. Biochem Soc Trans 2017; 45:531-535. [PMID: 28408492 DOI: 10.1042/bst20160478] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/19/2017] [Accepted: 02/21/2017] [Indexed: 01/25/2023]
Abstract
CD81 participates in a variety of important cellular processes such as membrane organization, protein trafficking, cellular fusion and cell-cell interactions. In the immune system, CD81 regulates immune synapse, receptor clustering and signaling; it also mediates adaptive and innate immune suppression. CD81 is a gateway in hepatocytes for pathogens such as hepatitis C virus and Plasmodium; it also confers susceptibility to Listeria infection. These diverse biological roles are due to the tendency of CD81 to associate with other tetraspanins and with cell-specific partner proteins, which provide the cells with a signaling platform. CD81 has also been shown to regulate cell migration and invasion, and has therefore been implicated in cancer progression. Indeed, we have recently shown that CD81 contributes to tumor growth and metastasis. CD81 is expressed in most types of cancer, including breast, lung, prostate, melanoma, brain cancer and lymphoma, and the overexpression or down-regulation of this molecule has been correlated with either good or bad prognosis. Here, we discuss the role of CD81 in cancer and its potential therapeutic use as a tumor target.
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14
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Joint features and complementarities of Tspan8 and CD151 revealed in knockdown and knockout models. Biochem Soc Trans 2017; 45:437-447. [PMID: 28408484 DOI: 10.1042/bst20160298] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/04/2017] [Accepted: 02/13/2017] [Indexed: 02/06/2023]
Abstract
Tetraspanins are highly conserved 4-transmembrane proteins which form molecular clusters with a large variety of transmembrane and cytosolic proteins. By these associations tetraspanins are engaged in a multitude of biological processes. Furthermore, tetraspanin complexes are located in specialized microdomains, called tetraspanin-enriched microdomains (TEMs). TEMs provide a signaling platform and are poised for invagination and vesicle formation. These vesicles can be released as exosomes (Exo) and are important in cell contact-independent intercellular communication. Here, we summarize emphasizing knockdown and knockout models' pathophysiological joint and selective activities of CD151 and Tspan8, and discuss the TEM-related engagement of CD151 and Tspan8 in Exo activities.
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15
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Yang YG, Sari IN, Zia MF, Lee SR, Song SJ, Kwon HY. Tetraspanins: Spanning from solid tumors to hematologic malignancies. Exp Hematol 2016; 44:322-8. [DOI: 10.1016/j.exphem.2016.02.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/11/2016] [Accepted: 02/13/2016] [Indexed: 02/06/2023]
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16
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Zhang Z, Wang F, Ding J, Zhang H, Zhu J, Sun Z, Zhang Y. Cationic dendron-bearing lipid/CD151 siRNA complex inhibits osteosarcoma metastasis by down-regulating matrix metalloproteinase-9. RSC Adv 2016. [DOI: 10.1039/c6ra08376e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cationic dendron-bearing lipid safely and effectively delivers CD151 siRNA complex for inhibition of osteosarcoma metastasis by down-regulating matrix metalloproteinase-9.
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Affiliation(s)
- Zhiyu Zhang
- Department of Orthopedics
- The Fourth Affiliated Hospital of China Medical University
- Shenyang 110032
- People's Republic of China
| | - Feng Wang
- Department of Orthopedics
- The Fourth Affiliated Hospital of China Medical University
- Shenyang 110032
- People's Republic of China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Haifei Zhang
- Department of Orthopedics
- The Fourth Affiliated Hospital of China Medical University
- Shenyang 110032
- People's Republic of China
| | - Jiajun Zhu
- Department of Orthopedics
- The Fourth Affiliated Hospital of China Medical University
- Shenyang 110032
- People's Republic of China
| | - Zhenguo Sun
- Department of Orthopedics
- The Fourth Affiliated Hospital of China Medical University
- Shenyang 110032
- People's Republic of China
| | - Yu Zhang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
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17
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Zhang Z, Wang F, Li Q, Zhang H, Cui Y, Ma C, Zhu J, Gu X, Sun Z. CD151 knockdown inhibits osteosarcoma metastasis through the GSK-3β/β-catenin/MMP9 pathway. Oncol Rep 2015; 35:1764-70. [PMID: 26707073 DOI: 10.3892/or.2015.4517] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/02/2015] [Indexed: 11/05/2022] Open
Abstract
Osteosarcoma (OS) is a primary bone malignancy with a high early metastatic propensity. It is crucial to find specific protein targets to develop therapeutic strategies against this lethal disease. Tetraspanin CD151 is involved in facilitating tumor metastasis. However, the role and molecular mechanism of CD151 in promoting OS metastasis remain enigmatic. In the present study, we used small interfering RNA (siRNA) to inhibit CD151 expression in highly metastatic OS cells and the results demonstrated that CD151 knockdown inhibited their migration, invasion and metastasis. We further investigated the molecular mechanism of CD151 by inhibiting genes known to be involved in metastasis in OS cells and found that CD151 modulated matrix metalloproteinase 9 (MMP9) expression through the glycogen synthase kinase 3 (GSK-3β)/β-catenin signaling pathway. We conclude that CD151 knockdown inhibits the expression of MMP9 through the GSK-3β/β‑catenin pathway and also inhibits OS migration and invasion in vitro and metastasis in vivo in highly metastatic OS. This suggests that CD151 may be a useful antimetastatic target for OS.
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Affiliation(s)
- Zhiyu Zhang
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Feng Wang
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Qin Li
- Laboratory Center, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Haifei Zhang
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Yan Cui
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Chengbin Ma
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Jiajun Zhu
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Xueyuan Gu
- Laboratory Center, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Zhenguo Sun
- Department of Orthopaedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
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18
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Wee JL, Schulze KE, Jones EL, Yeung L, Cheng Q, Pereira CF, Costin A, Ramm G, van Spriel AB, Hickey MJ, Wright MD. Tetraspanin CD37 Regulates β2 Integrin-Mediated Adhesion and Migration in Neutrophils. THE JOURNAL OF IMMUNOLOGY 2015; 195:5770-9. [PMID: 26566675 DOI: 10.4049/jimmunol.1402414] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 10/14/2015] [Indexed: 01/13/2023]
Abstract
Deciphering the molecular basis of leukocyte recruitment is critical to the understanding of inflammation. In this study, we investigated the contribution of the tetraspanin CD37 to this key process. CD37-deficient mice showed impaired neutrophil recruitment in a peritonitis model. Intravital microscopic analysis indicated that the absence of CD37 impaired the capacity of leukocytes to follow a CXCL1 chemotactic gradient accurately in the interstitium. Moreover, analysis of CXCL1-induced leukocyte-endothelial cell interactions in postcapillary venules revealed that CXCL1-induced neutrophil adhesion and transmigration were reduced in the absence of CD37, consistent with a reduced capacity to undergo β2 integrin-dependent adhesion. This result was supported by in vitro flow chamber experiments that demonstrated an impairment in adhesion of CD37-deficient neutrophils to the β2 integrin ligand, ICAM-1, despite the normal display of high-affinity β2 integrins. Superresolution microscopic assessment of localization of CD37 and CD18 in ICAM-1-adherent neutrophils demonstrated that these molecules do not significantly cocluster in the cell membrane, arguing against the possibility that CD37 regulates β2 integrin function via a direct molecular interaction. Moreover, CD37 ablation did not affect β2 integrin clustering. In contrast, the absence of CD37 in neutrophils impaired actin polymerization, cell spreading and polarization, dysregulated Rac-1 activation, and accelerated β2 integrin internalization. Together, these data indicate that CD37 promotes neutrophil adhesion and recruitment via the promotion of cytoskeletal function downstream of integrin-mediated adhesion.
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Affiliation(s)
- Janet L Wee
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia; Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Keith E Schulze
- Monash Micro Imaging, Monash University, Clayton, Victoria 3800, Australia
| | - Eleanor L Jones
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia
| | - Louisa Yeung
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia; Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Qiang Cheng
- Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Candida F Pereira
- Burnet Institute, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia; and
| | - Adam Costin
- Monash Micro Imaging, Monash University, Clayton, Victoria 3800, Australia
| | - Georg Ramm
- Monash Micro Imaging, Monash University, Clayton, Victoria 3800, Australia
| | - Annemiek B van Spriel
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Michael J Hickey
- Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Mark D Wright
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia;
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19
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Zevian SC, Johnson JL, Winterwood NE, Walters KS, Herndon ME, Henry MD, Stipp CS. CD151 promotes α3β1 integrin-dependent organization of carcinoma cell junctions and restrains collective cell invasion. Cancer Biol Ther 2015; 16:1626-40. [PMID: 26418968 PMCID: PMC4846106 DOI: 10.1080/15384047.2015.1095396] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 08/09/2015] [Accepted: 09/12/2015] [Indexed: 01/31/2023] Open
Abstract
Integrins function in collective migration both as major receptors for extracellular matrix and by crosstalk to adherens junctions. Despite extensive research, important questions remain about how integrin signaling mechanisms are integrated into collective migration programs. Tetraspanins form cell surface complexes with a subset of integrins and thus are good candidates for regulating the balance of integrin functional inputs into cell-matrix and cell-cell interactions. For example, tetraspanin CD151 directly associates with α3β1 integrin in carcinoma cells and promotes rapid α3β1-dependent single cell motility, but CD151 also promotes organized adherens junctions and restrains collective carcinoma cell migration on 2D substrates. However, the individual roles of CD151s integrin partners in CD151s pro-junction activity in carcinoma cells were not well understood. Here we find that CD151 promotes organized carcinoma cell junctions via α3β1 integrin, by a mechanism that requires the a3b1 ligand, laminin-332. Loss of CD151 promotes collective 3D invasion and growth in vitro and in vivo, and the enhanced invasion of CD151-silenced cells is α3 integrin dependent, suggesting that CD151 can regulate the balance between α3β1s pro-junction and pro-migratory activities in collective invasion. An analysis of human cancer cases revealed that changes in CD151 expression can be linked to either better or worse clinical outcomes depending on context, including potentially divergent roles for CD151 in different subsets of breast cancer cases. Thus, the role of the CD151-α3β1 complex in carcinoma progression is context dependent, and may depend on the mode of tumor cell invasion.
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Affiliation(s)
| | | | | | | | - Mary E Herndon
- Department of Biology; University of Iowa; Iowa City, IA USA
| | - Michael D Henry
- Department of Molecular Physiology & Biophysics; University of Iowa; Iowa City, IA USA
- Department of Pathology; University of Iowa; Iowa City, IA USA
- Holden Comprehensive Cancer Center, University of Iowa; Iowa City, IA USA
| | - Christopher S Stipp
- Department of Biology; University of Iowa; Iowa City, IA USA
- Department of Molecular Physiology & Biophysics; University of Iowa; Iowa City, IA USA
- Holden Comprehensive Cancer Center, University of Iowa; Iowa City, IA USA
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20
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Vences-Catalán F, Rajapaksa R, Srivastava MK, Marabelle A, Kuo CC, Levy R, Levy S. Tetraspanin CD81 promotes tumor growth and metastasis by modulating the functions of T regulatory and myeloid-derived suppressor cells. Cancer Res 2015; 75:4517-26. [PMID: 26329536 DOI: 10.1158/0008-5472.can-15-1021] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 08/10/2015] [Indexed: 11/16/2022]
Abstract
Tumor cells counteract innate and adaptive antitumor immune responses by recruiting regulatory T cells (Treg) and innate myeloid-derived suppressor cells (MDSC), which facilitate immune escape and metastatic dissemination. Here we report a role in these recruitment processes for CD81, a member of the tetraspanin family of proteins that have been implicated previously in cancer progression. We found that genetic deficiency in CD81 reduced tumor growth and metastasis in two genetic mouse backgrounds and multiple tumor models. Mechanistic investigations revealed that CD81 was not required for normal development of Treg and MDSC but was essential for immunosuppressive functions. Notably, adoptive transfer of wild-type Treg into CD81-deficient mice was sufficient to promote tumor growth and metastasis. Our findings suggested that CD81 modulates adaptive and innate immune responses, warranting further investigation of CD81 in immunomodulation in cancer and its progression.
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Affiliation(s)
- Felipe Vences-Catalán
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Ranjani Rajapaksa
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Minu K Srivastava
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Aurelien Marabelle
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Chiung-Chi Kuo
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Ronald Levy
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California
| | - Shoshana Levy
- Department of Medicine, Division of Oncology, Stanford University Medical Center, Stanford, California.
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21
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Targeting CD151 by lentivirus-mediated RNA interference inhibits luminal and basal-like breast cancer cell growth and invasion. Mol Cell Biochem 2015; 407:111-21. [DOI: 10.1007/s11010-015-2459-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 05/16/2015] [Indexed: 11/27/2022]
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22
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Kumari S, Devi G, Badana A, Dasari VR, Malla RR. CD151-A Striking Marker for Cancer Therapy. BIOMARKERS IN CANCER 2015; 7:7-11. [PMID: 25861224 PMCID: PMC4372031 DOI: 10.4137/bic.s21847] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/28/2015] [Accepted: 01/28/2015] [Indexed: 12/28/2022]
Abstract
Cluster of differentiation 151 (CD151) is a member of the mammalian tetraspanin family, which is involved in diverse functions such as maintaining normal cellular integrity, cell-to-cell communication, wound healing, platelet aggregation, trafficking, cell motility and angiogenesis. CD151 also supports de novo carcinogenesis in human skin squamous cell carcinoma (SCC) and tumor metastasis. CD151 interacts with α3β1 and α6β4 integrins through palmitoylation where cysteine plays an important role in the association of CD151 with integrins and non-integrin proteins. Invasion and metastasis of cancer cells were diminished by decreasing CD151 association with integrins. CD151 functions at various stages of cancer, including metastatic cascade and primary tumor growth, thus reinforcing the importance of CD151 as a target in oncology. The present review highlights the role of CD151 in tumor metastasis and its importance in cancer therapy.
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Affiliation(s)
- Seema Kumari
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Gayatri Devi
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Anil Badana
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Venkata Ramesh Dasari
- Department of Cancer Biology and Pharmacology, College of Medicine, University of Illinois, Peoria, IL, USA
| | - Rama Rao Malla
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
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23
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Qin Y, Mohandessi S, Gordon L, Wadehra M. Regulation of FAK Activity by Tetraspan Proteins: Potential Clinical Implications in Cancer. Crit Rev Oncog 2015; 20:391-405. [PMID: 27279237 PMCID: PMC5390008 DOI: 10.1615/critrevoncog.v20.i5-6.110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that regulates multiple cell signaling pathways in both physiological and pathological conditions. Overexpression and activation of FAK is associated with many advanced stage cancers through promoting cancer cell tumorigenicity and progression as well as by regulating the tumor microenvironment. FAK has multiple binding partners through which FAK exerts its functions including RhoGEF, Src family, talin, cortactin, and paxilin. Over the last few years, it has been proposed that a novel group of four transmembrane proteins can interact with FAK and regulate its activity. These include select tetraspanins such as CD151 and CD9 as well as the GAS3 family members epithelial membrane protein-2 (EMP2) and peripheral myelin protein-22 (PMP22). In this review, we discuss the current knowledge of the interaction between FAK and tetraspan proteins in physiological and pathological conditions, with an emphasis on the potential of tetraspan family members as therapeutic targets in cancer.
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Affiliation(s)
- Yu Qin
- Department of Ophthalmology, Jules Stein Eye Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Shabnam Mohandessi
- Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Lynn Gordon
- Department of Ophthalmology, Jules Stein Eye Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Madhuri Wadehra
- Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, CA
- Center to Eliminate Cancer Health Disparities, Charles Drew University, Los Angeles, CA
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24
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Li P, Zeng H, Qin J, Zou Y, Peng D, Zuo H, Liu Z. Effects of tetraspanin CD151 inhibition on A549 human lung adenocarcinoma cells. Mol Med Rep 2014; 11:1258-65. [PMID: 25351816 DOI: 10.3892/mmr.2014.2774] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 06/26/2014] [Indexed: 11/06/2022] Open
Abstract
Tetraspanin protein CD151 is overexpressed in a wide variety of cancer types, including lung cancer, and is closely associated with metastasis and poor prognosis of carcinoma. To investigate whether knockdown of CD151 expression can inhibit the malignant biological behavior of lung adenocarcinoma (LAC), RNA interference technology (RNAi) was used to silence CD151 expression in the A549 LAC cell line. Specific small interfering RNA (siRNA) for targeting human endogenous CD151 were delivered into A549 cells in order to examine the effects on cell proliferation, survival, migration, invasion and colony formation. The expression levels of CD151 were assayed by western blotting, proliferation was evaluated by MTT method and apoptosis was determined by flow cytometry. The invasive and metastatic ability of A549 cells was investigated by wound healing and Boyden chamber assays. Colony formation analysis was used to determine the A549 cell growth properties. Finally, the expression of phosphorylated FAK, PI3K‑AKT, MEK‑Erk1/2, MMPs, and VEGF was detected by western blotting. The results demonstrated that CD151‑siRNA significantly decreased the expression level of CD151 in A549 cells. Reduced CD151 expression in A549 cells lead to the inhibition of cellular proliferation, migration, invasion and colony formation and an enhancement of apoptosis. Furthermore, the expression of tumor development‑related proteins, including FAK, PI3K‑AKT, MEK‑ERK1/2MAPK as well as the expression of MMP9 and VEGF, were restrained. Taken together, the present study has shown that CD151 expression is essential for LAC progression. Thus, knockdown CD151 expression by targeted siRNA could inhibit the related downstream intercellular signaling pathways, and this may provide a novel gene therapy for patients with LAC.
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Affiliation(s)
- Pengcheng Li
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Hesong Zeng
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jin Qin
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yuanlin Zou
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Dan Peng
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Houjuan Zuo
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zhengxiang Liu
- Departments of Cardiology and Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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Ailane N, Greco C, Zhu Y, Sala-Valdés M, Billard M, Casal I, Bawa O, Opolon P, Rubinstein E, Boucheix C. Effect of an anti-human Co-029/tspan8 mouse monoclonal antibody on tumor growth in a nude mouse model. Front Physiol 2014; 5:364. [PMID: 25285080 PMCID: PMC4168815 DOI: 10.3389/fphys.2014.00364] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/04/2014] [Indexed: 01/15/2023] Open
Abstract
New therapeutic agents are needed in digestive tract tumors. Co-029/tspan8 is a tetraspanin frequently expressed on human colorectal tumors, In this work, we report the effects of the monoclonal antibody Ts29.2, targeting Co-029/tspan8, on colorectal tumor cells in vitro and after implantation in nude mice. HT29, Isreco1 and SW480 colorectal tumor cell lines were used for this study. HT29 has a strong endogenous expression of Co-029/tspan8, whereas Isreco1 cells don't express Co-029/tspan8 and SW480 has only a weak expression. Isreco1 and SW480 were transduced to express Co-029/tspan8 at the same level as HT29. In order to check the specificity of the effect of monoclonal antibody Ts29.2, low Co-029/tspan8 expressing SW480 cells were injected simultaneously with transduced cells in the back, on the left and right sides of the mice. With an early treatment, Ts29.2 mAb inhibited growth of tumors expressing Co-029/tspan8 up to 70%, whereas a delayed treatment was less efficient. No effect of the antibody on cell proliferation or apoptosis induction was detected in vitro. No increase of activated caspase 3 labeling was observed in vivo and areas occupied by vessels were not significantly different between treated mice and controls. This suggests that the action of Ts29.2 is linked neither to cellular toxicity nor to the inhibition of the previously reported angiogenic properties of Co-029/tspan8. An inhibition of cell proliferation in vivo is demonstrated by a reduction of the mitotic index in HT29 tumors of Ts29.2 treated mice. The discrepancy between in vitro and in vivo data on cell proliferation suggests that the binding of Ts29.2 to tumor cells may modify their response to signals issued from the microenvironment. Given the restricted pattern of tissue expression of the tetraspanin Co-029/tspan8, these preliminary results put forth for consideration the antibody targeting of this tetraspanin in further investigations for therapeutic applications.
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Affiliation(s)
- Naouel Ailane
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Céline Greco
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Yingying Zhu
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Monica Sala-Valdés
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Martine Billard
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Ibrahim Casal
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Olivia Bawa
- Gustave Roussy, Laboratoire de Pathologie Expérimentale Villejuif, France
| | - Paule Opolon
- Gustave Roussy, Laboratoire de Pathologie Expérimentale Villejuif, France
| | - Eric Rubinstein
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
| | - Claude Boucheix
- Inserm, UMR-S1004 Villejuif, France ; Université Paris-Sud 11 Villejuif, France
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26
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Abstract
Tetraspanins are a family of proteins with four transmembrane domains that play a role in many aspects of cell biology and physiology; they are also used by several pathogens for infection and regulate cancer progression. Many tetraspanins associate specifically and directly with a limited number of proteins, and also with other tetraspanins, thereby generating a hierarchical network of interactions. Through these interactions, tetraspanins are believed to have a role in cell and membrane compartmentalization. In this Cell Science at a Glance article and the accompanying poster, we describe the basic principles underlying tetraspanin-based assemblies and highlight examples of how tetraspanins regulate the trafficking and function of their partner proteins that are required for the normal development and function of several organs, including, in humans, the eye, the kidney and the immune system.
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Affiliation(s)
- Stéphanie Charrin
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Stéphanie Jouannet
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Claude Boucheix
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Eric Rubinstein
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
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27
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Deletion of Cd151 reduces mammary tumorigenesis in the MMTV/PyMT mouse model. BMC Cancer 2014; 14:509. [PMID: 25012362 PMCID: PMC4226978 DOI: 10.1186/1471-2407-14-509] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 07/04/2014] [Indexed: 11/10/2022] Open
Abstract
Background Tetraspanins are transmembrane proteins that serve as scaffolds for multiprotein complexes containing, for example, integrins, growth factor receptors and matrix metalloproteases, and modify their functions in cell adhesion, migration and transmembrane signaling. CD151 is part of the tetraspanin family and it forms tight complexes with β1 and β4 integrins, both of which have been shown to be required for tumorigenesis and/or metastasis in transgenic mouse models of breast cancer. High levels of the tetraspanin CD151 have been linked to poor patient outcome in several human cancers including breast cancer. In addition, CD151 has been implicated as a promoter of tumor angiogenesis and metastasis in various model systems. Methods Here we investigated the effect of Cd151 deletion on mammary tumorigenesis by crossing Cd151-deficient mice with a spontaneously metastasising transgenic model of breast cancer induced by the polyoma middle T antigen (PyMT) driven by the murine mammary tumor virus promoter (MMTV). Results Cd151 deletion did not affect the normal development and differentiation of the mammary gland. While there was a trend towards delayed tumor onset in Cd151−/− PyMT mice compared to Cd151+/+ PyMT littermate controls, this result was only approaching significance (Log-rank test P-value =0.0536). Interestingly, Cd151 deletion resulted in significantly reduced numbers and size of primary tumors but did not appear to affect the number or size of metastases in the MMTV/PyMT mice. Intriguingly, no differences in the expression of markers of cell proliferation, apoptosis and blood vessel density was observed in the primary tumors. Conclusion The findings from this study provide additional evidence that CD151 acts to enhance tumor formation initiated by a range of oncogenes and strongly support its relevance as a potential therapeutic target to delay breast cancer progression.
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Wu J, Peng X, Zhou A, Qiao M, Wu H, Xiao H, Liu G, Zheng X, Zhang S, Mei S. MiR-506 inhibits PRRSV replication in MARC-145 cells via CD151. Mol Cell Biochem 2014; 394:275-81. [PMID: 24878990 DOI: 10.1007/s11010-014-2103-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/15/2014] [Indexed: 01/23/2023]
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is one of the most economically important diseases of swine, which is caused by PRRS virus (PRRSV). CD151, one of PRRSV entry mediators, determines the cell susceptibility for PRRSV. Emerging evidence indicates that the host microRNAs (miRNAs) play key roles in modulating virus infection and viral pathogenesis. In the present study, targeting porcine CD151 miRNAs were identified, and their function during PRRSV infection in MARC-145 cells was further verified. We found that miR-506 could directly target porcine CD151 3'-UTR mRNA by luciferase reporter assay. Overexpression of miR-506 significantly decreased CD151 expression at both mRNA and protein levels. Furthermore, overexpression of miR-506 reduced cellular PRRSV replication and virus release in MARC-145 cells. Our results suggested that miR-506 could inhibit PRRSV replication by directly targeting PRRSV receptor of CD151 in MARC-145 cells. However, the molecular mechanisms of miR-506 and its function in vivo need further investigation.
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Affiliation(s)
- Junjing Wu
- Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Provincial Academy of Agricultural Sciences, Wuhan, 430064, People's Republic of China
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Bond D, Brzozowski J, Skelding K, Roselli S, Weidenhofer J. Use of tetraspanins CD151 and CD9 as biomarkers for breast cancer. BREAST CANCER MANAGEMENT 2014. [DOI: 10.2217/bmt.14.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Danielle Bond
- Hunter Medical Research Institute (HMRI), New Lambton, NSW 2508, Australia
- School of Biomedical Sciences & Pharmacy, Faculty of Health & Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Joshua Brzozowski
- Hunter Medical Research Institute (HMRI), New Lambton, NSW 2508, Australia
- School of Biomedical Sciences & Pharmacy, Faculty of Health & Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Kathryn Skelding
- Hunter Medical Research Institute (HMRI), New Lambton, NSW 2508, Australia
- School of Biomedical Sciences & Pharmacy, Faculty of Health & Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Severine Roselli
- Hunter Medical Research Institute (HMRI), New Lambton, NSW 2508, Australia
- School of Biomedical Sciences & Pharmacy, Faculty of Health & Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Judith Weidenhofer
- Hunter Medical Research Institute (HMRI), New Lambton, NSW 2508, Australia
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Wang X, Yu H, Lu X, Zhang P, Wang M, Hu Y. MiR-22 suppresses the proliferation and invasion of gastric cancer cells by inhibiting CD151. Biochem Biophys Res Commun 2014; 445:175-9. [PMID: 24495805 DOI: 10.1016/j.bbrc.2014.01.160] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 01/27/2014] [Indexed: 12/11/2022]
Abstract
Gastric cancer (GC) is the second common cause of cancer-related death worldwide. microRNAs (miRNAs) play important roles in the carcinogenesis of GC. Here, we found that miR-22 was significantly decreased in GC tissue samples and cell lines. Ectopic overexpression of miR-22 remarkably suppressed cell proliferation and colony formation of GC cells. Moreover, overexpression of miR-22 significantly suppressed migration and invasion of GC cells. CD151 was found to be a target of miR-22. Furthermore, overexpression of CD151 significantly attenuated the tumor suppressive effect of miR-22. Taken together, miR-22 might suppress GC cells growth and motility partially by inhibiting CD151.
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Affiliation(s)
- Xun Wang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Honggang Yu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Xinyao Lu
- Department of Gastroenterology, Wuchang Hospital of Wuhan City, Wuhan 430063, China
| | - Peng Zhang
- Department of Gastroenterology, Wuchang Hospital of Wuhan City, Wuhan 430063, China
| | - Minglin Wang
- Department of Gastroenterology, Wuchang Hospital of Wuhan City, Wuhan 430063, China
| | - Yikui Hu
- Department of Neurology, Pu Ai Hospital of Wuhan City, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430034, China
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Palmer TD, Martínez CH, Vasquez C, Hebron KE, Jones-Paris C, Arnold SA, Chan SM, Chalasani V, Gomez-Lemus JA, Williams AK, Chin JL, Giannico GA, Ketova T, Lewis JD, Zijlstra A. Integrin-free tetraspanin CD151 can inhibit tumor cell motility upon clustering and is a clinical indicator of prostate cancer progression. Cancer Res 2014; 74:173-87. [PMID: 24220242 PMCID: PMC3947299 DOI: 10.1158/0008-5472.can-13-0275] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Normal physiology relies on the organization of transmembrane proteins by molecular scaffolds, such as tetraspanins. Oncogenesis frequently involves changes in their organization or expression. The tetraspanin CD151 is thought to contribute to cancer progression through direct interaction with the laminin-binding integrins α3β1 and α6β1. However, this interaction cannot explain the ability of CD151 to control migration in the absence of these integrins or on non-laminin substrates. We demonstrate that CD151 can regulate tumor cell migration without direct integrin binding and that integrin-free CD151 (CD151(free)) correlates clinically with tumor progression and metastasis. Clustering CD151(free) through its integrin-binding domain promotes accumulation in areas of cell-cell contact, leading to enhanced adhesion and inhibition of tumor cell motility in vitro and in vivo. CD151(free) clustering is a strong regulator of motility even in the absence of α3 expression but requires PKCα, suggesting that CD151 can control migration independent of its integrin associations. The histologic detection of CD151(free) in prostate cancer correlates with poor patient outcome. When CD151(free) is present, patients are more likely to recur after radical prostatectomy and progression to metastatic disease is accelerated. Multivariable analysis identifies CD151(free) as an independent predictor of survival. Moreover, the detection of CD151(free) can stratify survival among patients with elevated prostate-specific antigen levels. Cumulatively, these studies demonstrate that a subpopulation of CD151 exists on the surface of tumor cells that can regulate migration independent of its integrin partner. The clinical correlation of CD151(free) with prostate cancer progression suggests that it may contribute to the disease and predict cancer progression.
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Affiliation(s)
- Trenis D Palmer
- Authors' Affiliations:Departments of Pathology, Microbiology and Immunology and Cancer Biology, Vanderbilt University, Nashville, Tennessee; Department of Oncology, University of Alberta, Edmonton, Alberta; Translational Prostate Cancer Research Group, London Regional Cancer Program; and Department of Pathology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario Canada
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Abstract
An abundance of evidence shows supporting roles for tetraspanin proteins in human cancer. Many studies show that the expression of tetraspanins correlates with tumour stage, tumour type and patient outcome. In addition, perturbations of tetraspanins in tumour cell lines can considerably affect cell growth, morphology, invasion, tumour engraftment and metastasis. This Review emphasizes new studies that have used de novo mouse cancer models to show that select tetraspanin proteins have key roles in tumour initiation, promotion and metastasis. This Review also emphasizes how tetraspanin proteins can sometimes participate in tumour angiogenesis. These recent data build an increasingly strong case for tetraspanins as therapeutic targets.
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Sadej R, Grudowska A, Turczyk L, Kordek R, Romanska HM. CD151 in cancer progression and metastasis: a complex scenario. J Transl Med 2014; 94:41-51. [PMID: 24247563 DOI: 10.1038/labinvest.2013.136] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 10/22/2013] [Indexed: 12/14/2022] Open
Abstract
Originally identified as a molecular organizer of interacting proteins into tetraspanin-enriched microdomains, the tetraspanin CD151 has now been shown to be involved in tumour progression. Increasing evidence emerging from in vitro, in vivo and clinical analyses implicates this tetraspanin in supporting growth of various types of tumours at different levels. It affects both cell autonomous behavior and communication with neighboring cells and the microenvironment. CD151 regulates post-adhesion events, that is, cell spreading, migration and invasion including subsequent intravasation and formation of metastasis. Present on both neoplastic and endothelial cells, CD151 is engaged in promotion of tumour neovascularization. The molecular mechanism of CD151 in cancer is based on its ability to organize distribution and function of interacting proteins, ie, laminin-binding integrins (α3β1, α6β1 and α6β4), receptors for growth factors (HGFR, EGFR and TGF-β1R) and matrix metalloproteinases (MMP-7, MMP-2 and MMP-9), which indicates its importance in disease development. Results of clinical analyses of CD151 expression in different types of cancer and a large number of in vivo models demonstrate its impact on tumour growth and invasion and implicate CD151 as a valuable diagnostic and prognostic marker as well as a potential target for anti-cancer therapy.
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Affiliation(s)
- Rafal Sadej
- Department of Molecular Enzymology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Alicja Grudowska
- Department of Molecular Enzymology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Lukasz Turczyk
- Department of Molecular Enzymology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Radzislaw Kordek
- Department of Pathology, Medical University of Łódź, Łódź, Poland
| | - Hanna M Romanska
- Department of Pathology, Medical University of Łódź, Łódź, Poland
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Copeland BT, Bowman MJ, Boucheix C, Ashman LK. Knockout of the tetraspanin Cd9 in the TRAMP model of de novo prostate cancer increases spontaneous metastases in an organ-specific manner. Int J Cancer 2013; 133:1803-12. [PMID: 23575960 DOI: 10.1002/ijc.28204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 04/04/2013] [Indexed: 12/28/2022]
Abstract
Prostate cancer is an extremely heterogeneous disease; patients that do progress to late-stage metastatic prostate cancer have limited treatment options, mostly palliative. Molecules involved in the metastatic cascade may prove beneficial in stratifying patients to assign appropriate treatment modalities and may also prove to be therapeutic antimetastatic targets. The tetraspanin group of molecules are integral membrane proteins that associate with motility-related proteins such as integrins. Clinical studies have mostly shown that reduced expression levels of the tetraspanin CD9 are correlated with tumour progression in a range of cancers. Furthermore, functional studies have shown CD9 to be involved in cell motility and adhesion and that it may influence metastasis. The effects of endogenous CD9 on prostate cancer initiation and progression were analysed by crossing a Cd9-/- (KO) murine model with a model of de novo developing and spontaneously metastasising prostate cancer, namely the transgenic adenocarcinoma of mouse prostate model. Our study demonstrates for the first time that ablation of Cd9 had no detectable effect on de novo primary tumour onset, but did significantly increase metastasis to the liver but not the lungs.
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Affiliation(s)
- Ben T Copeland
- School of Biomedical Sciences and Pharmacy, University of Newcastle and Cancer Research Program, Hunter Medical Research Institute, Newcastle, Australia
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Integrin α3β1 regulates tumor cell responses to stromal cells and can function to suppress prostate cancer metastatic colonization. Clin Exp Metastasis 2012; 30:541-52. [PMID: 23224938 DOI: 10.1007/s10585-012-9558-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 11/24/2012] [Indexed: 10/27/2022]
Abstract
Integrin α3β1 promotes tumor cell adhesion, migration, and invasion on laminin isoforms, and several clinical studies have indicated a correlation between increased tumoral α3β1 integrin expression and tumor progression, metastasis, and poor patient outcomes. However, several other clinical and experimental studies have suggested that α3β1 can possess anti-metastatic activity in certain settings. To help define the range of α3β1 functions in tumor cells in vivo, we used RNAi to silence the α3 integrin subunit in an aggressive, in vivo-passaged subline of PC-3 prostate carcinoma cells. Loss of α3 integrin impaired adhesion and proliferation on the α3β1 integrin ligand, laminin-332 in vitro. Despite these deficits in vitro, the α3-silenced cells were significantly more aggressive in a lung colonization model in vivo, with a substantially increased rate of tumor growth that significantly reduced survival. In contrast, silencing the related α6 integrin subunit delayed metastatic growth in vivo. The increased colonization of α3-silenced tumor cells in vivo was recapitulated in 3D collagen co-cultures with lung fibroblasts or pre-osteoblast-like cells, where α3-silenced cells showed dramatically enhanced growth. The increased response of α3-silenced tumor cells to stromal cells in co-culture could be reproduced by fibroblast conditioned medium, which contains one or more heparin-binding factors that selectively favor the growth of α3-silenced cells. Our new data suggest a scenario in which α3β1 regulates tumor-host interactions within the metastatic tumor microenvironment to limit growth, providing some of the first direct evidence that specific loss of α3 function in tumor cells can have pro-metastatic consequences in vivo.
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