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Kavasi RM, Neagu M, Constantin C, Munteanu A, Surcel M, Tsatsakis A, Tzanakakis GN, Nikitovic D. Matrix Effectors in the Pathogenesis of Keratinocyte-Derived Carcinomas. Front Med (Lausanne) 2022; 9:879500. [PMID: 35572966 PMCID: PMC9100789 DOI: 10.3389/fmed.2022.879500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/11/2022] [Indexed: 12/16/2022] Open
Abstract
Basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (cSCC), referred to as keratinocyte carcinomas, are skin cancer with the highest incidence. BCCs, rarely metastasize; whereas, though generally not characterized by high lethality, approximately 2–4% of primary cSCCs metastasize with patients exhibiting poor prognosis. The extracellular matrix (ECM) serves as a scaffold that provides structural and biological support to cells in all human tissues. The main components of the ECM, including fibrillar proteins, proteoglycans (PGs), glycosaminoglycans (GAGs), and adhesion proteins such as fibronectin, are secreted by the cells in a tissue-specific manner, critical for the proper function of each organ. The skin compartmentalization to the epidermis and dermis compartments is based on a basement membrane (BM), a highly specialized network of ECM proteins that separate and unify the two compartments. The stiffness and assembly of BM and tensile forces affect tumor progenitors' invasion at the stratified epithelium's stromal border. Likewise, the mechanical properties of the stroma, e.g., stiffness, are directly correlated to the pathogenesis of the keratinocyte carcinomas. Since the ECM is a pool for various growth factors, cytokines, and chemokines, its' intense remodeling in the aberrant cancer tissue milieu affects biological functions, such as angiogenesis, adhesion, proliferation, or cell motility by regulating specific signaling pathways. This review discusses the structural and functional modulations of the keratinocyte carcinoma microenvironment. Furthermore, we debate how ECM remodeling affects the pathogenesis of these skin cancers.
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Affiliation(s)
- Rafaela-Maria Kavasi
- Laboratory of Histology-Embryology, Medical School, University of Crete, Heraklion, Greece
| | - Monica Neagu
- Immunology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
- Colentina Hospital, Bucharest, Romania
- Doctoral School, University of Bucharest, Bucharest, Romania
| | - Carolina Constantin
- Immunology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
- Colentina Hospital, Bucharest, Romania
- Doctoral School, University of Bucharest, Bucharest, Romania
| | - Adriana Munteanu
- Immunology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
- Doctoral School, University of Bucharest, Bucharest, Romania
| | - Mihaela Surcel
- Immunology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Aristidis Tsatsakis
- Forensic Science Department, Medical School, University of Crete, Heraklion, Greece
| | - George N. Tzanakakis
- Laboratory of Histology-Embryology, Medical School, University of Crete, Heraklion, Greece
| | - Dragana Nikitovic
- Laboratory of Histology-Embryology, Medical School, University of Crete, Heraklion, Greece
- *Correspondence: Dragana Nikitovic
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Pogorzelska-Dyrbus J, Szepietowski JC. Adhesion Molecules in Non-melanoma Skin Cancers: A Comprehensive Review. In Vivo 2021; 35:1327-1336. [PMID: 33910810 DOI: 10.21873/invivo.12385] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/05/2021] [Accepted: 03/19/2021] [Indexed: 12/18/2022]
Abstract
Basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) are the most frequently diagnosed cancers, generating significant medical and financial problems. Cutaneous carcinogenesis is a very complex process characterized by genetic and molecular alterations, and mediated by various proteins and pathways. Cell adhesion molecules (CAMs) are transmembrane proteins responsible for cell-to-cell and cell-to-extracellular matrix adhesion, engaged in all steps of tumor progression. Based on their structures they are divided into five major groups: cadherins, integrins, selectins, immunoglobulins and CD44 family. Cadherins, integrins and CD44 are the most studied in the context of non-melanoma skin cancers. The differences in expression of adhesion molecules may be related to the invasiveness of these tumors, through the loss of tissue integrity, neovascularization and alterations in intercellular signaling processes. In this article, each group of CAMs is briefly described and the present knowledge on their role in the development of non-melanoma skin cancers is summarized.
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Affiliation(s)
| | - Jacek C Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
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Liao HY, Da CM, Liao B, Zhang HH. Roles of matrix metalloproteinase-7 (MMP-7) in cancer. Clin Biochem 2021; 92:9-18. [PMID: 33713636 DOI: 10.1016/j.clinbiochem.2021.03.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/13/2021] [Accepted: 03/03/2021] [Indexed: 12/19/2022]
Abstract
Matrix metalloproteinase-7 (MMP-7) is a small proteolytic enzyme that secretes zinc and calcium endopeptidases. It can degrade a variety of extracellular matrix substrates and other substrates and plays important regulatory roles in many human pathophysiological processes. Since its discovery, MMP-7 has been recognized as a regulatory protein in wound healing, bone growth, and remodeling. Later, MMP-7 was reported to regulate the occurrence and development of cancers and mediate the proliferation, differentiation, metastasis, and invasion of several types of cancer cells via various mechanisms. Thus, matrix metalloproteinase-7 may be a promising tumor biomarker and therapeutic target. The expression of MMP-7 correlates with the clinical characteristics of cancer patients, and its expression profile is a new diagnostic and prognostic biomarker for a variety of human diseases. Hence, manipulating the expression or function of MMP-7 may be a potential treatment strategy for different diseases including cancers. This review summarizes the role played by MMP-7 in carcinogenesis of several human cancers, underlying mechanisms, and its clinical significance of the occurrence and development of cancers.
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Affiliation(s)
- Hai-Yang Liao
- The Second Clinical Medical College of Lanzhou University, 82 Cuiying Men, Lanzhou 730030, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
| | - Chao-Ming Da
- The Second Clinical Medical College of Lanzhou University, 82 Cuiying Men, Lanzhou 730030, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
| | - Bei Liao
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China; The First Clinical Medical College of Lanzhou University, 1 Donggang Road, Lanzhou 730000, PR China
| | - Hai-Hong Zhang
- The Second Clinical Medical College of Lanzhou University, 82 Cuiying Men, Lanzhou 730030, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
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Mikami E, Kudo M, Ohashi R, Kawahara K, Kawamoto Y, Teduka K, Fujii T, Kitamura T, Kure S, Ishino K, Sakatani T, Wada R, Saeki H, Naito Z. Toll‑like receptor 4 plays a tumor‑suppressive role in cutaneous squamous cell carcinoma. Int J Oncol 2019; 54:2179-2188. [PMID: 31081044 DOI: 10.3892/ijo.2019.4790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 04/01/2019] [Indexed: 11/06/2022] Open
Abstract
Toll‑like receptor 4 (TLR4), a key regulator of the innate immune system, is expressed not only in immune cells, but also in a number of cancer cells. A biological role for TLR4 in cutaneous squamous cell carcinoma (SCC), however, is unclear. In this study, we first examined TLR4 expression and localization in cases of SCC, actinic keratosis (AK) and Bowen's disease (BD) by immunohistochemistry. TLR4 expression was significantly higher in the SCC than in the AK or BD tissues. We then determined the TLR4 expression level in vivo, in 3 histological subtypes of SCC. TLR4 expression in poorly differentiated SCC was significantly lower compared with that of the moderately and well‑differentiated type. In addition, the CD44 immunoreactivity tended to be high in the cell membrane of poorly differentiated SCC. Of note, poorly differentiated SCC is a risk factor of unfavorable outcomes in affected patients. We then assessed the biological role of TLR4 in HSC‑1 and HSC‑5 SCC cells and HaCaT human keratinocytes. TLR4 knockdown by transfection with siRNA accelerated HSC‑1 and HaCaT cell migration and invasion compared to the control siRNA‑transfected cells. TLR4 knockdown resulted in an increased CD44 expression and in an enhanced filopodia protrusion formation, particularly in HSC‑1. On the whole, these results suggest that a reduced TLR4 expression enhances the malignant features in SCC cases and cultured SCC cell lines. TLR4 may thus play an anti‑tumor role in cutaneous SCC.
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Affiliation(s)
- Erina Mikami
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Mitsuhiro Kudo
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Ryuji Ohashi
- Department of Diagnostic Pathology, Nippon Medical School Musashikosugi Hospital, Kawasaki, Kanagawa 211‑8533, Japan
| | - Kiyoko Kawahara
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Yoko Kawamoto
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Kiyoshi Teduka
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Takenori Fujii
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Taeko Kitamura
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Shoko Kure
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Kousuke Ishino
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Takashi Sakatani
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Ryuichi Wada
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Hidehisa Saeki
- Department of Dermatology, Nippon Medical School, Tokyo 113‑8603, Japan
| | - Zenya Naito
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo 113‑8603, Japan
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Herbster S, Paladino A, de Freitas S, Boccardo E. Alterations in the expression and activity of extracellular matrix components in HPV-associated infections and diseases. Clinics (Sao Paulo) 2018; 73:e551s. [PMID: 30208169 PMCID: PMC6113921 DOI: 10.6061/clinics/2018/e551s] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/07/2018] [Indexed: 12/23/2022] Open
Abstract
Infection with human papillomaviruses is associated with a series of benign and malignant hyperproliferative diseases that impose a heavy burden on human populations. A subgroup of mucosal human papillomavirus types are associated with the majority of cervical cancers and a relevant fraction of vulvar, vaginal, anal, penile and head and neck carcinomas. Human papillomaviruses mediate cell transformation by the expression of two pleiotropic oncoproteins that alter major cellular regulatory pathways. However, these viruses are not complete carcinogens, and further alterations within the infected cells and in their microenvironment are necessary for tumor establishment and progression. Alterations in components of the extracellular matrix for instance, matrix metalloproteinases and some of their regulators such as tissue inhibitors of metalloproteinases, have been consistently reported in human papillomaviruses-associated diseases. Matrix metalloproteinases function by remodeling the extracellular matrix and alterations in their expression levels and/or activity are associated with pathological processes and clinical variables including local tumor invasion, metastasis, tumor relapse and overall patient prognosis and survival. In this review we present a summarized discussion on the current data concerning the impact of human papillomavirus infection on the activity and expression of extracellular matrix components. We further comment on the possibility of targeting extracellular matrix molecules in experimental treatment protocols.
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Affiliation(s)
- Suellen Herbster
- Laboratory of Oncovirology, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Andressa Paladino
- Laboratory of Oncovirology, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sumara de Freitas
- Laboratory of Oncovirology, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Enrique Boccardo
- Laboratory of Oncovirology, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Ma JW, Wang X, Chang L, Zhong XY, Jing H, Zhu X, Wang S, Xiao W. CD44 collaborates with ERBB2 mediate radiation resistance via p38 phosphorylation and DNA homologous recombination pathway in prostate cancer. Exp Cell Res 2018; 370:58-67. [PMID: 29894706 DOI: 10.1016/j.yexcr.2018.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/15/2018] [Accepted: 06/09/2018] [Indexed: 02/03/2023]
Abstract
CD44, a glycoprotein, has been reported to have relationship with resistance to radiation in prostate cancer (Cap) cells. However, its molecular mechanism remains unknown. In this study, we demonstrated that inhibited CD44 enhanced the radiosentivity in Cap cells. It has been hypothesized that CD44 combine with ERBB2 and activate downstream phosphated protein to mediate DNA damage repair. Therefore, we conducted a detailed analysis of effects of radiation by clonogenic assay and immunofluorescence stain for p-H2AX foci. The downstream of CD44/ERBB2 and DNA damage repair proteins was detected by western blot. The results reveal that CD44 interacted with ERBB2, the downstream of CD44/ERBB2 was p-p38 when Cap cells were irradiated. Among the pathways, homologous recombination (HR) related proteins Mre11 and Rad50 were involved in CD44/ERBB2/p-p38 mediated radioresistance in Cap. In conclusion, CD44 could stabilize ERBB2 and co-activate p-p38 expression then promote the DNA damage repair by HR pathway, which finally contribute to the radioresistance of CaP.
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Affiliation(s)
- Ji-Wei Ma
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China; Department of Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Xiao Wang
- Department of Pharmacy, The Second Clinical Medical College (Shenzhen People's), Jinan University, Shenzhen 518020, China
| | - Lei Chang
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xue-Yun Zhong
- Department of Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Haiyan Jing
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xiaolong Zhu
- Department of Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Shaoxiang Wang
- College of Pharmacy, Shenzhen University School of Medicine, Shenzhen 518061 China.
| | - WeiWei Xiao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, China.
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Abstract
Heparan sulfate proteoglycans activate the matrix metalloproteinase-7 zymogen (proMMP-7) and recruit it in order to shed proteins from cell surfaces. This occurs in uterine and mammary epithelia, bacterial killing, lung healing, and tumor cell signaling. Basic tracks on proMMP-7 recognize polyanionic heparin, according to nuclear magnetic resonance and mutations disruptive of maturation. Contacts and proximity measurements guided docking of a heparin octasaccharide to proMMP-7. The reducing end fits into a basic pocket in the pro-domain while the chain continues toward the catalytic domain. Another oligosaccharide traverses a basic swath remote on the catalytic domain and inserts its reducing end into a slot formed with the basic C terminus. This latter association appears to support allosteric acceleration of proteolysis. The modes of binding account for extended, heterogeneous assemblies of proMMP-7 with heparinoids during maturation and for bridging to pro-α-defensins and proteoglycans. These associations support proteolytic release of activities at epithelial cell surfaces.
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Pittayapruek P, Meephansan J, Prapapan O, Komine M, Ohtsuki M. Role of Matrix Metalloproteinases in Photoaging and Photocarcinogenesis. Int J Mol Sci 2016; 17:ijms17060868. [PMID: 27271600 PMCID: PMC4926402 DOI: 10.3390/ijms17060868] [Citation(s) in RCA: 592] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/13/2016] [Accepted: 05/30/2016] [Indexed: 12/23/2022] Open
Abstract
Matrix metalloproteinases (MMPs) are zinc-containing endopeptidases with an extensive range of substrate specificities. Collectively, these enzymes are able to degrade various components of extracellular matrix (ECM) proteins. Based on their structure and substrate specificity, they can be categorized into five main subgroups, namely (1) collagenases (MMP-1, MMP-8 and MMP-13); (2) gelatinases (MMP-2 and MMP-9); (3) stromelysins (MMP-3, MMP-10 and MMP-11); (4) matrilysins (MMP-7 and MMP-26); and (5) membrane-type (MT) MMPs (MMP-14, MMP-15, and MMP-16). The alterations made to the ECM by MMPs might contribute in skin wrinkling, a characteristic of premature skin aging. In photocarcinogenesis, degradation of ECM is the initial step towards tumor cell invasion, to invade both the basement membrane and the surrounding stroma that mainly comprises fibrillar collagens. Additionally, MMPs are involved in angiogenesis, which promotes cancer cell growth and migration. In this review, we focus on the present knowledge about premature skin aging and skin cancers such as basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma, with our main focus on members of the MMP family and their functions.
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Affiliation(s)
- Pavida Pittayapruek
- Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12000, Thailand.
| | - Jitlada Meephansan
- Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12000, Thailand.
| | - Ornicha Prapapan
- Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12000, Thailand.
| | - Mayumi Komine
- Department of Dermatology, Jichi Medical University, Tochigi 329-0498, Japan.
| | - Mamitaro Ohtsuki
- Department of Dermatology, Jichi Medical University, Tochigi 329-0498, Japan.
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Corrêa MA, Okamoto CK, Gonçalves-de-Andrade RM, van den Berg CW, Tambourgi DV. Sphingomyelinase D from Loxosceles laeta Venom Induces the Expression of MMP7 in Human Keratinocytes: Contribution to Dermonecrosis. PLoS One 2016; 11:e0153090. [PMID: 27078876 PMCID: PMC4831769 DOI: 10.1371/journal.pone.0153090] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/23/2016] [Indexed: 11/19/2022] Open
Abstract
Envenomation by Loxosceles spider is characterized by the development of dermonecrosis. In previous studies, we have demonstrated that increased expression/secretion of matrix metalloproteinases 2 and 9, induced by Loxosceles intermedia venom Class 2 SMases D (the main toxin in the spider venom), contribute to the development of cutaneous loxoscelism. In the present study we show that the more potent venom containing the Class 1 SMase D from Loxosceles laeta, in addition to increasing the expression/secretion of MMP2 and MMP9, also stimulates the expression of MMP7 (Matrilysin-1), which was associated with keratinocyte cell death. Tetracycline, a matrix metalloproteinase inhibitor, prevented cell death and reduced MMPs expression. Considering that L. laeta venom is more potent at inducing dermonecrosis than L. intermedia venom, our results suggest that MMP7 may play an important role in the severity of dermonecrosis induced by L. laeta spider venom SMase D. In addition, the inhibition of MMPs by e.g. tetracyclines may be considered for the treatment of the cutaneous loxoscelism.
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Affiliation(s)
- Mara A. Corrêa
- Immunochemistry Laboratory, Butantan Institute, São Paulo, Brazil
| | | | | | - Carmen W. van den Berg
- Institute of Molecular and Experimental Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom
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Fullár A, Dudás J, Oláh L, Hollósi P, Papp Z, Sobel G, Karászi K, Paku S, Baghy K, Kovalszky I. Remodeling of extracellular matrix by normal and tumor-associated fibroblasts promotes cervical cancer progression. BMC Cancer 2015; 15:256. [PMID: 25885552 PMCID: PMC4409756 DOI: 10.1186/s12885-015-1272-3] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/26/2015] [Indexed: 02/08/2023] Open
Abstract
Background Comparison of tissue microarray results of 29 cervical cancer and 27 normal cervix tissue samples using immunohistochemistry revealed considerable reorganization of the fibrillar stroma of these tumors. Preliminary densitometry analysis of laminin-1, α-smooth muscle actin (SMA) and fibronectin immunostaining demonstrated 3.8-fold upregulation of laminin-1 and 5.2-fold increase of SMA in the interstitial stroma, indicating that these proteins and the activated fibroblasts play important role in the pathogenesis of cervical cancer. In the present work we investigated the role of normal and tumor-associated fibroblasts. Methods In vitro models were used to throw light on the multifactorial process of tumor-stroma interaction, by means of studying the cooperation between tumor cells and fibroblasts. Fibroblasts from normal cervix and cervical cancers were grown either separately or in co-culture with CSCC7 cervical cancer cell line. Changes manifest in secreted glycoproteins, integrins and matrix metallo-proteases (MMPs) were explored. Results While normal fibroblasts produced components of interstitial matrix and TGF-β1 that promoted cell proliferation, cancer-associated fibroblasts (CAFs) synthesized ample amounts of laminin-1. The following results support the significance of laminin-1 in the invasion of CSCC7 cells: 1.) Tumor-associated fibroblasts produced more laminin-1 and less components of fibrillar ECM than normal cells; 2.) The production of laminin chains was further increased when CSCC7 cells were grown in co-culture with fibroblasts; 3.) CSCC7 cells were capable of increasing their laminin production; 4.) Tumor cells predominantly expressed integrin α6β4 laminin receptors and migrated towards laminin. The integrin profile of both normal and tumor-associated fibroblasts was similar, expressing receptors for fibronectin, vitronectin and osteopontin. MMP-7 secreted by CSCC7 cells was upregulated by the presence of normal fibroblasts, whereas MMP-2 produced mainly by fibroblasts was activated in the presence of CSCC7 cells. Conclusions Our results indicate that in addition to degradation of the basement membrane, invasion of cervical cancer is accomplished by the remodeling of the interstitial stroma, which process includes decrease and partial replacement of fibronectin and collagens by a laminin-rich matrix.
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Affiliation(s)
- Alexandra Fullár
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
| | - József Dudás
- Department of Otorhinolaryngology, Medical University Innsbruck, Innsbruck, Austria.
| | - Lászlóné Oláh
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
| | - Péter Hollósi
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary. .,Tumor Progression Research Group, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Zoltán Papp
- Maternity Private Department Kútvölgyi Clinical Block, Semmelweis University, Budapest, Hungary.
| | - Gábor Sobel
- 2nd Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary.
| | - Katalin Karászi
- CRUK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, UK.
| | - Sándor Paku
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary. .,Tumor Progression Research Group, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Kornélia Baghy
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
| | - Ilona Kovalszky
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
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Alexandroff A, Flohr C, Johnston G. Updates from the British Association of Dermatologists 89th Annual Meeting, 7-10 July 2009, Glasgow, U.K. Br J Dermatol 2010; 163:27-37. [DOI: 10.1111/j.1365-2133.2010.09814.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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