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Janša V, Pušić Novak M, Ban Frangež H, Rižner TL. TGFBI as a candidate biomarker for non-invasive diagnosis of early-stage endometriosis. Hum Reprod 2023; 38:1284-1296. [PMID: 37187159 PMCID: PMC10320490 DOI: 10.1093/humrep/dead091] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 04/16/2023] [Indexed: 05/17/2023] Open
Abstract
STUDY QUESTION Can cartilage oligomeric matrix protein (COMP) and transforming growth factor-β-induced protein ig-h3 (TGFBI) alone or in combination with cancer antigen 125 (CA-125) be considered as potential blood biomarkers of endometriosis? SUMMARY ANSWER The results of this study indicate that COMP has no diagnostic value. TGFBI has potential as a non-invasive biomarker of the early stages of endometriosis, while TGFBI together with CA-125 has similar diagnostic characteristics as CA-125 alone for all stages of endometriosis. WHAT IS KNOWN ALREADY Endometriosis is a common, chronic gynecological disease that significantly affects patient quality of life by causing pain and infertility. The gold standard for diagnosis is visual inspection of pelvic organs by laparoscopy, therefore there is an urgent need for discovery of non-invasive biomarkers for endometriosis to reduce diagnostic delays and allow earlier treatment of patients. The potential biomarkers for endometriosis evaluated in this study (COMP and TGFBI) were previously identified by our proteomic analysis of peritoneal fluid samples. STUDY DESIGN, SIZE, DURATION This is a case-control study divided into a discovery (n = 56 patients) and a validation phase (n = 237 patients). All patients were treated between 2008 and 2019 in a tertiary medical center. PARTICIPANTS/MATERIALS, SETTING, METHOD Patients were stratified based on the laparoscopic findings. The discovery phase included 32 endometriosis patients (cases) and 24 patients with confirmed absence of endometriosis (controls). The validation phase included 166 endometriosis and 71 control patients. Concentrations of COMP and TGFBI were measured by ELISA in plasma samples, whereas concentration of CA-125 was measured using a clinically validated assay for serum samples. Statistical and receiver operating characteristic (ROC) curve analyses were performed. The classification models were built using the linear support vector machine (SVM) method with the SVM built-in feature ranking method. MAIN RESULTS AND THE ROLE OF CHANCE The discovery phase revealed significantly increased concentration of TGFBI, but not COMP, in plasma samples of patients with endometriosis compared to controls. In this smaller cohort, univariate ROC analysis showed fair diagnostic potential of TGFBI, with an AUC value of 0.77, sensitivity of 58%, and specificity of 84%. The classification model built using linear SVM and combining TGFBI and CA-125 showed an AUC value of 0.91, sensitivity of 88% and specificity of 75% in distinguishing patients with endometriosis from controls. The validation phase results revealed similar diagnostic characteristics of the SVM model combining TGFBI and CA-125, with an AUC value of 0.83, sensitivity of 83% and specificity of 67% and CA-125 alone with AUC value of 0.83, sensitivity of 73% and specificity of 80%. TGFBI exhibited good diagnostic potential for early-stage endometriosis (revised American Society for Reproductive Medicine stage I-II), with an AUC value of 0.74, sensitivity of 61% and specificity of 83% compared to CA-125, which had an AUC value of 0.63, sensitivity of 60% and specificity of 67%. An SVM model combining TGFBI and CA-125 showed a high AUC value of 0.94 and sensitivity of 95% for diagnosing moderate-to-severe endometriosis. LIMITATIONS, REASONS FOR CAUTION The diagnostic models were built and validated from a single endometriosis center, and thus further validation and technical verification in a multicenter study with a larger cohort is needed. Additional limitation was lack of histological confirmation of disease for some patients in the validation phase. WIDER IMPLICATIONS OF THE FINDINGS This study revealed for the first time increased concentration of TGFBI in plasma samples of patients with endometriosis, particularly those with minimal-to-mild endometriosis, compared to controls. This is the first step in considering TGFBI as a potential non-invasive biomarker for the early stages of endometriosis. It also opens a path for new basic research to investigate the importance of TGFBI in the pathophysiology of endometriosis. Further studies are needed to confirm the diagnostic potential of a model based on TGFBI and CA-125 for the non-invasive diagnosis of endometriosis. STUDY FUNDING/COMPETING INTEREST(S) The preparation of this manuscript was supported by grant J3-1755 from the Slovenian Research Agency to T.L.R and EU H2020-MSCA-RISE project TRENDO (grant 101008193). All authors declare that they have no conflicts of interest. TRIAL REGISTRATION NUMBER NCT0459154.
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Affiliation(s)
- Vid Janša
- Department of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Maja Pušić Novak
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Helena Ban Frangež
- Department of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tea Lanišnik Rižner
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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Janša V, Klančič T, Pušić M, Klein M, Vrtačnik Bokal E, Ban Frangež H, Rižner TL. Proteomic analysis of peritoneal fluid identified COMP and TGFBI as new candidate biomarkers for endometriosis. Sci Rep 2021; 11:20870. [PMID: 34686725 PMCID: PMC8536751 DOI: 10.1038/s41598-021-00299-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 09/30/2021] [Indexed: 11/09/2022] Open
Abstract
Endometriosis is a common non-malignant gynecological disease that significantly compromises fertility and quality of life of the majority of patients. The gold standard for diagnosis is visual inspection of the pelvic organs by surgical laparoscopy and there are no biomarkers that would allow non-invasive diagnosis. The pathogenesis of endometriosis is not completely understood, thus analysis of peritoneal fluid might contribute in this respect. Our prospective case-control study included 58 patients undergoing laparoscopy due to infertility, 32 patients with peritoneal endometriosis (cases) and 26 patients with unexplained primary infertility (controls). Discovery proteomics using antibody microarrays that covered 1360 proteins identified 16 proteins with different levels in cases versus the control patients. The validation using an ELISA approach confirmed significant differences in the levels of cartilage oligomeric matrix protein (COMP) and transforming growth factor-β-induced protein ig-h3 (TGFBI) and nonsignificant differences in angiotensinogen (AGT). A classification model based on a linear support vector machine revealed AUC of > 0.83, sensitivity of 0.81 and specificity of 1.00. Differentially expressed proteins represent candidates for diagnostic and prognostic biomarkers or drug targets. Our findings have brought new knowledge that will be helpful in the understanding of the pathophysiology of endometriosis and warrant further studies in blood samples.
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Affiliation(s)
- V Janša
- Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000, Ljubljana, Slovenia
| | - T Klančič
- Faculty of Medicine, Institute of Biochemistry, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia
| | - M Pušić
- Faculty of Medicine, Institute of Biochemistry, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia
| | - M Klein
- Sciomics GmbH, Karl-Landsteiner-Straße 6, 69151, Neckargemünd, Germany
| | - E Vrtačnik Bokal
- Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia
| | - H Ban Frangež
- Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000, Ljubljana, Slovenia.
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia.
| | - T Lanišnik Rižner
- Faculty of Medicine, Institute of Biochemistry, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia.
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Zhang Q, Zhang Y, Yan M, Zhu K, Su Q, Pan J, Yang M, Zhou D, Tan J. βig-h3 enhances chondrogenesis via promoting mesenchymal condensation in rat Achilles tendon heterotopic ossification model. Aging (Albany NY) 2020; 12:7030-7041. [PMID: 32312943 PMCID: PMC7202527 DOI: 10.18632/aging.103060] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/04/2020] [Indexed: 01/22/2023]
Abstract
Heterotopic ossification (HO) is a poorly characterized disease with ectopic bone formation in the musculoskeletal soft tissues. HO is widely considered as a tissue repair process goes away, with endochondral ossification to be the major pathological basis. The molecular mechanism of how the resident/recruited progenitor cells for tissue regeneration error differentiated into the chondrocytes remains unknown. Here, we found Transforming Growth Factor B Induced Gene Human Clone 3 (βig-h3) was highly expressed in the inflammation and chondrogenesis stages of a heterotopic ossification model after rat Achilles tendon injury, as well as upon chondrogenic differentiation conditions in vitro. βig-h3 functioned as an extracellular matrix protein, which was induced by TGFβ signaling, could bind to the injured tendon-derived stem cells (iTDSCs) and inhibit the attachment of iTDSCs to collagen I. Exogenous βig-h3 was also found able to accelerate the process of mesenchymal condensation of cultured iTDSCs and promote chondrogenic differentiation in vitro, and additional injection of iTDSCs could promote endochondral ossification in Achilles tendon injury model. Taken together, βig-h3 might function as an adhesion protein that inhibited the attachment of iTDSCs to collagen I (the injury site) but promoted the attachment of iTDSCs to each other, which resulted in promoting chondrogenic differentiation.
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Affiliation(s)
- Qiang Zhang
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Orthopaedic Surgery, The Affiliated Changzhou No. 2 People's Hospital with Nanjing Medical University, Changzhou, China
| | - Yan Zhang
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Meijun Yan
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kai Zhu
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qihang Su
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jie Pan
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mingjie Yang
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dong Zhou
- Department of Orthopaedic Surgery, The Affiliated Changzhou No. 2 People's Hospital with Nanjing Medical University, Changzhou, China
| | - Jun Tan
- Department of Orthopaedic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Orthopedics, Pinghu Second People's Hospital, Pinghu, China
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Lekka M, Pabijan J, Orzechowska B. Morphological and mechanical stability of bladder cancer cells in response to substrate rigidity. Biochim Biophys Acta Gen Subj 2019; 1863:1006-1014. [DOI: 10.1016/j.bbagen.2019.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/14/2019] [Accepted: 03/11/2019] [Indexed: 01/13/2023]
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Wang S, Shen HW, Chai H, Liang Y. Complex harmonic regularization with differential evolution in a memetic framework for biomarker selection. PLoS One 2019; 14:e0210786. [PMID: 30763332 PMCID: PMC6375558 DOI: 10.1371/journal.pone.0210786] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 01/02/2019] [Indexed: 01/23/2023] Open
Abstract
For studying cancer and genetic diseases, the issue of identifying high correlation genes from high-dimensional data is an important problem. It is a great challenge to select relevant biomarkers from gene expression data that contains some important correlation structures, and some of the genes can be divided into different groups with a common biological function, chromosomal location or regulation. In this paper, we propose a penalized accelerated failure time model CHR-DE using a non-convex regularization (local search) with differential evolution (global search) in a wrapper-embedded memetic framework. The complex harmonic regularization (CHR) can approximate to the combination ℓp(12≤p<1) and ℓq (1 ≤ q < 2) for selecting biomarkers in group. And differential evolution (DE) is utilized to globally optimize the CHR’s hyperparameters, which make CHR-DE achieve strong capability of selecting groups of genes in high-dimensional biological data. We also developed an efficient path seeking algorithm to optimize this penalized model. The proposed method is evaluated on synthetic and three gene expression datasets: breast cancer, hepatocellular carcinoma and colorectal cancer. The experimental results demonstrate that CHR-DE is a more effective tool for feature selection and learning prediction.
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Affiliation(s)
- Sai Wang
- Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau
| | - Hai-Wei Shen
- Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau
| | - Hua Chai
- Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau
| | - Yong Liang
- Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
- * E-mail:
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6
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Li X, Yu X, Dai D, Song X, Xu W. The altered glucose metabolism in tumor and a tumor acidic microenvironment associated with extracellular matrix metalloproteinase inducer and monocarboxylate transporters. Oncotarget 2018; 7:23141-55. [PMID: 27009812 PMCID: PMC5029616 DOI: 10.18632/oncotarget.8153] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 01/13/2016] [Indexed: 02/06/2023] Open
Abstract
Extracellular matrix metalloproteinase inducer, also knowns as cluster of differentiation 147 (CD147) or basigin, is a widely distributed cell surface glycoprotein that is involved in numerous physiological and pathological functions, especially in tumor invasion and metastasis. Monocarboxylate transporters (MCTs) catalyze the proton-linked transport of monocarboxylates such as L-lactate across the plasma membrane to preserve the intracellular pH and maintain cell homeostasis. As a chaperone to some MCT isoforms, CD147 overexpression significantly contributes to the metabolic transformation of tumor. This overexpression is characterized by accelerated aerobic glycolysis and lactate efflux, and it eventually provides the tumor cells with a metabolic advantage and an invasive phenotype in the acidic tumor microenvironment. This review highlights the roles of CD147 and MCTs in tumor cell metabolism and the associated molecular mechanisms. The regulation of CD147 and MCTs may prove to be with a therapeutic potential for tumors through the metabolic modification of the tumor microenvironment.
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Affiliation(s)
- Xiaofeng Li
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xiaozhou Yu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Dong Dai
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xiuyu Song
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Wengui Xu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
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Bigh3 silencing increases retinoblastoma tumor growth in the murine SV40-TAg-Rb model. Oncotarget 2017; 8:15490-15506. [PMID: 28099942 PMCID: PMC5362501 DOI: 10.18632/oncotarget.14659] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 12/24/2016] [Indexed: 11/25/2022] Open
Abstract
BIGH3, a secreted protein of the extracellular matrix interacts with collagen and integrins on the cell surface. BIGH3 can have opposing functions in cancer, acting either as tumor suppressor or promoter by enhancing tumor progression and angiogenesis. In the eye, BIGH3 is expressed in the cornea and the retinal pigment epithelium and could impact on the development of retinoblastoma, the most common paediatric intraocular neoplasm. Retinoblastoma initiation requires the inactivation of both alleles of the RB1 tumor suppressor gene in the developing retina and tumor progression involves additional genomic changes. To determine whether BIGH3 affects retinoblastoma development, we generated a retinoblastoma mouse model with disruption of the Bigh3 genomic locus. Bigh3 silencing in these mice resulted in enhanced tumor development in the retina. A decrease in apoptosis is involved in the initial events of tumorigenesis, followed by an increased activity of the pro-survival ERK pathway as well as an upregulation of cyclin-dependent kinases (CDKs). Taken together, these data suggest that BIGH3 acts as a tumor suppressor in the retina.
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Carpenter PM, Sivadas P, Hua SS, Xiao C, Gutierrez AB, Ngo T, Gershon PD. Migration of breast cancer cell lines in response to pulmonary laminin 332. Cancer Med 2017; 6:220-234. [PMID: 27878981 PMCID: PMC5269569 DOI: 10.1002/cam4.957] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 10/10/2016] [Accepted: 10/14/2016] [Indexed: 02/06/2023] Open
Abstract
Because tumor cell motility is a requirement for metastasis, we hypothesized that lung tissue harbors substances that induce tumor cell migration. MCF-7 breast carcinoma cells exposed to small airway epithelial cells and conditioned medium exhibited dose-dependent tumor cell migration. Among the extracellular matrix proteins in the conditioned medium identified by mass spectrometry, laminin 332 (LM332) had the greatest contribution to the migration of MCF-7 cells. Immunoblotting and immunohistochemistry for LM332-specific chains identified LM332 in the lung and in pulmonary epithelial cells. Antibodies to either LM332 or its integrin receptor inhibited MCF-7 motility, and knockdown of LM332 chains also reduced its migration-inducing activity. Taken together, these findings implicate LM332 as a component of lung tissue that can induce motility in breast carcinoma cells that have been transported to lung during metastasis. Earlier studies on LM332 in tumor progression have examined LM332 expression in tumor cells. This investigation, in comparison, provides evidence that the tumor promoting potential of LM332 may originate in the lung microenvironment rather than in tumor cells alone. Furthermore, this study provides evidence that the motility-inducing properties of the microenvironment can reside in epithelial cells. The findings raise the possibility that LM332 plays a role in the pulmonary metastases of breast carcinoma and may provide a target for antimetastasis therapy.
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Affiliation(s)
- Philip M. Carpenter
- Department of PathologyKeck School of Medicine, the University of Southern CaliforniaLos AngelesCalifornia
- Department of PathologyUniversity of CaliforniaIrvineCalifornia
| | - Priyanka Sivadas
- Department of PathologyKeck School of Medicine, the University of Southern CaliforniaLos AngelesCalifornia
| | - Spencer S. Hua
- Department of PathologyUniversity of CaliforniaIrvineCalifornia
| | - Cally Xiao
- Department of Pharmacology and Experimental TherapeuticsUniversity Hospital of CologneCologneGermany
| | | | - Tuan Ngo
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia
| | - Paul D. Gershon
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia
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Han B, Cai H, Chen Y, Hu B, Luo H, Wu Y, Wu J. The role of TGFBI (βig-H3) in gastrointestinal tract tumorigenesis. Mol Cancer 2015; 14:64. [PMID: 25889002 PMCID: PMC4435624 DOI: 10.1186/s12943-015-0335-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Accepted: 03/09/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND TGFβ-induced (TGFBI/βig-H3) is a protein inducible by TGFβ1 and secreted by many types of cells. It binds to collagen, forms part of the extracellular matrix (ECM), and interacts with integrins on cell surfaces. In this study, we investigated the role of TGFBI in tumorigenesis and the underlying mechanisms. METHODS Patient serum TGFBI levels were determined by ELISA. TGFBI transgenic and gene knockout mice and TGFBI-overexpressing liver cells were used for mechanistic studies. RESULTS We demonstrated that patients with cholangiocarcinomas, hepatic carcinomas or gastric carcinomas presented significantly elevated serum TGFBI levels, and the excess TGFBI was derived from the tumor masses. TGFBI overexpression in mice resulted in increased incidence of spontaneous tumors and N,N-diethylnitrosamine (DEN)-induced liver tumor nodules, compared to that in wild type (WT) mice, while TGFBI knockout mice were comparable to WT controls in these 2 aspects. TGFBI promoted the survival of Aml-12 liver cells with DNA damage after irradiation, and augmented their post-irradiation proliferation. It activated the FAK/AKT/AKT1S1/PRS6/EIF4EBP pathway, which is known to modulate cell survival and proliferation. CONCLUSIONS Our data suggest that TGFBI functions as a promoter of certain gastrointestinal tract cancers. It provides a survival advantage to cells with DNA damage. Over a long time span, this advantage could translate into increased tumor risks.
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Affiliation(s)
- Bing Han
- Laboratory of Immunology and Cardiovascular Research, Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Stain-Denis Street, Montreal, Quebec, Canada.
| | - Haolei Cai
- Department of Surgery, The Second Affiliated Hospital of Zhejiang University, 88 Jiefang Road, Hangzhou, China.
| | - Ying Chen
- Department of Surgery, The Second Affiliated Hospital of Zhejiang University, 88 Jiefang Road, Hangzhou, China.
| | - Bing Hu
- Anatomic Pathology, AmeriPath Central Florida, 8150 Chancellor Dr, Orlando, FL, USA.
| | - Hongyu Luo
- Laboratory of Immunology and Cardiovascular Research, Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Stain-Denis Street, Montreal, Quebec, Canada.
| | - Yulian Wu
- Department of Surgery, The Second Affiliated Hospital of Zhejiang University, 88 Jiefang Road, Hangzhou, China.
| | - Jiangping Wu
- Laboratory of Immunology and Cardiovascular Research, Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Stain-Denis Street, Montreal, Quebec, Canada. .,Nephrology Service, Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Stain-Denis Street, Montreal, Quebec, Canada.
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Guo YS, Zhao R, Ma J, Cui W, Sun Z, Gao B, He S, Han YH, Fan J, Yang L, Tang J, Luo ZJ. βig-h3 promotes human osteosarcoma cells metastasis by interacting with integrin α2β1 and activating PI3K signaling pathway. PLoS One 2014; 9:e90220. [PMID: 24595049 PMCID: PMC3942417 DOI: 10.1371/journal.pone.0090220] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 01/27/2014] [Indexed: 02/05/2023] Open
Abstract
Osteosarcoma, the most common primary bone tumor in children and young adolescents, is characterized by local invasion and distant metastasis. But the detailed mechanisms of osteosarcoma metastasis are not well known. In the present study, we found that βig-h3 promotes metastatic potential of human osteosarcoma cells in vitro and in vivo. Furthermore, βig-h3 co-localized with integrin α2β1 in osteosarcoma cells. But βig-h3 did not change integrin α2β1 expression in Saos-2 cells. Interaction of βig-h3 with integrin α2β1 mediates metastasis of human osteosarcoma cells. The second FAS1 domain of βig-h3 but not the first FAS1 domain, the third FAS1 domain or the fourth FAS1 domain mediates human osteosarcoma cells metastasis, which is the α2β1 integrin-interacting domain. We further demonstrated that PI3K/AKT signaling pathway is involved in βig-h3-induced human osteosarcoma cells metastasis process. Together, these results reveal βig-h3 enhances the metastasis potentials of human osteosarcoma cells via integrin α2β1-mediated PI3K/AKT signal pathways. The discovery of βig-h3-mediated pathway helps us to understand the mechanism of human osteosarcoma metastasis and provides evidence for the possibility that βig-h3 can be a potential therapeutic target for osteosarcoma treatment.
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Affiliation(s)
- Yun-Shan Guo
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
- Cell Engineering Research Centre & Department of Cell Biology, State Key Laboratory of Cancer Biology, State Key Discipline of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Rui Zhao
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jie Ma
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Cui
- Department of Endocrinology and Metabolism, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhen Sun
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Bo Gao
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shu He
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yue-Hu Han
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jing Fan
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Liu Yang
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
- * E-mail: (LY); (JT); (ZJL)
| | - Juan Tang
- Cell Engineering Research Centre & Department of Cell Biology, State Key Laboratory of Cancer Biology, State Key Discipline of Cell Biology, Fourth Military Medical University, Xi'an, China
- * E-mail: (LY); (JT); (ZJL)
| | - Zhuo-Jing Luo
- Department of Osteology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
- * E-mail: (LY); (JT); (ZJL)
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Abstract
Intracellular free Ca(2+) ([Ca(2+)]i) is a highly versatile second messenger that regulates a wide range of functions in every type of cell and tissue. To achieve this versatility, the Ca(2+) signaling system operates in a variety of ways to regulate cellular processes that function over a wide dynamic range. This is particularly well exemplified for Ca(2+) signals in the liver, which modulate diverse and specialized functions such as bile secretion, glucose metabolism, cell proliferation, and apoptosis. These Ca(2+) signals are organized to control distinct cellular processes through tight spatial and temporal coordination of [Ca(2+)]i signals, both within and between cells. This article will review the machinery responsible for the formation of Ca(2+) signals in the liver, the types of subcellular, cellular, and intercellular signals that occur, the physiological role of Ca(2+) signaling in the liver, and the role of Ca(2+) signaling in liver disease.
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Affiliation(s)
- Maria Jimena Amaya
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
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Géraud C, Mogler C, Runge A, Evdokimov K, Lu S, Schledzewski K, Arnold B, Hämmerling G, Koch PS, Breuhahn K, Longerich T, Marx A, Weiss C, Damm F, Schmieder A, Schirmacher P, Augustin HG, Goerdt S. Endothelial transdifferentiation in hepatocellular carcinoma: loss of Stabilin-2 expression in peri-tumourous liver correlates with increased survival. Liver Int 2013; 33:1428-40. [PMID: 23870052 DOI: 10.1111/liv.12262] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/15/2013] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Hepatocellular carcinoma (HCC) is a malignant tumour that is characterized by extensive vascular remodelling and responsiveness to treatment with the anti-angiogenic multikinase inhibitor sorafenib. The aim was to study endothelial remodelling in HCC. METHODS The murine inducible albumin-SV40-large T-antigen model and two tissue microarrays (TMA) with 295 tumourous and 83 peri-tumourous samples of 296 patients with HCC were analysed for expression of liver sinusoidal endothelial cell (LSEC)-specific marker proteins, stabilin-1 and stabilin-2, LYVE-1 and CD32b. RESULTS LSEC marker proteins were sequentially lost during HCC progression in the murine HCC model being absent from tumour nodules larger than 800 μm in diameter. Similarly, the TMA analysis of human HCCs revealed loss of all four marker proteins in the majority of tumourous tissue samples. Preservation of LYVE-1 expression showed a significant correlation with low grading (G1). In corresponding peri-tumourous liver tissue, loss of all marker proteins was seen in a minor proportion of cases (34%) while the majority of cases retained expression of at least one of the marker proteins. Loss of stabilin-2 expression in peri-tumourous liver tissue of patients with HCC was significantly less likely to occur (38%) than loss of the other marker proteins (63-95%) and it was associated with significantly longer tumour-specific (P = 0.0523) and overall (P = 0.0338) survival. Loss of stabilin-2 may enhance survival in HCC by preventing endothelial-tumour cell adhesive interactions and microvascular invasion. CONCLUSIONS In summary, endothelial transdifferentiation is a major pathogenic event in HCC development indicating a switch from vessel co-option/intussusceptive angiogenesis to sprouting angiogenesis.
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Affiliation(s)
- Cyrill Géraud
- Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, Mannheim, Germany
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Transforming growth Factor-Beta-Induced Protein (TGFBI)/(βig-H3): a matrix protein with dual functions in ovarian cancer. Int J Mol Sci 2012; 13:10461-10477. [PMID: 22949874 PMCID: PMC3431872 DOI: 10.3390/ijms130810461] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 08/03/2012] [Accepted: 08/16/2012] [Indexed: 02/04/2023] Open
Abstract
Transforming growth factor-beta-induced protein (TGFBI, also known as βig-H3 and keratoepithelin) is an extracellular matrix protein that plays a role in a wide range of physiological and pathological conditions including diabetes, corneal dystrophy and tumorigenesis. Many reports indicate that βig-H3 functions as a tumor suppressor. Loss of βig-H3 expression has been described in several cancers including ovarian cancer and promoter hypermethylation has been identified as an important mechanism for the silencing of the TGFBI gene. Our recent findings that βig-H3 is down-regulated in ovarian cancer and that high concentrations of βig-H3 can induce ovarian cancer cell death support a tumor suppressor role. However, there is also convincing data in the literature reporting a tumor-promoting role for βig-H3. We have shown βig-H3 to be abundantly expressed by peritoneal cells and increase the metastatic potential of ovarian cancer cells by promoting cell motility, invasion, and adhesion to peritoneal cells. Our findings suggest that βig-H3 has dual functions and can act both as a tumor suppressor or tumor promoter depending on the tumor microenvironment. This article reviews the current understanding of βig-H3 function in cancer cells with particular focus on ovarian cancer.
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Human U87 astrocytoma cell invasion induced by interaction of βig-h3 with integrin α5β1 involves calpain-2. PLoS One 2012; 7:e37297. [PMID: 22629380 PMCID: PMC3357424 DOI: 10.1371/journal.pone.0037297] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 04/18/2012] [Indexed: 01/05/2023] Open
Abstract
It is known that βig-h3 is involved in the invasive process of many types of tumors, but its mechanism in glioma cells has not been fully clarified. Using immunofluorescent double-staining and confocal imaging analysis, and co-immunoprecipitation assays, we found that βig-h3 co-localized with integrin α5β1 in U87 cells. We sought to elucidate the function of this interaction by performing cell invasion assays and gelatin zymography experiments. We found that siRNA knockdowns of βig-h3 and calpain-2 impaired cell invasion and MMP secretion. Moreover, βig-h3, integrins and calpain-2 are known to be regulated by Ca2+, and they are also involved in tumor cell invasion. Therefore, we further investigated if calpain-2 was relevant to βig-h3-integrin α5β1 interaction to affect U87 cell invasion. Our data showed that βig-h3 co-localized with integrin α5β1 to enhance the invasion of U87 cells, and that calpain-2, is involved in this process, acting as a downstream molecule.
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βig-h3 regulates store-operated Ca2+ entry and promotes the invasion of human hepatocellular carcinoma cells. Cell Biol Int 2011; 35:811-7. [PMID: 21395558 DOI: 10.1042/cbi20100916] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
βig-h3 is a TGF-β (transforming growth factor β)-induced ECM (extracellular matrix) protein that induces the secretion of MMPs (matrix metalloproteinases). However, the mechanism of induction is yet to be established. In this study, siRNAs (small interfering RNAs) targeted against βig-h3 were transfected into SMMC-7721 cells [a HCC (human hepatocellular carcinoma) cell line] to knockdown the expression of βig-h3. We found that NiCl2, a potent blocker of extracellular Ca2+ entry, reduced βig-h3-induced secretion of MMP-2 and -9. Further investigation suggested that reduction in the levels of βig-h3 decreased the secretion of MMP-2 and -9 that was enhanced by an increase in the concentration of extracellular Ca2+. SNAP (S-nitroso-N-acetylpenicillamine), a NO (nitric oxide) donor, and 8-Br-cGMP (8-bromo-cGMP) inhibited thapsigargin-induced Ca2+ entry and MMP secretion in the invasive potential of human SMMC-7721 cells. Further, the inhibitory effects of 8-Br-cGMP and SNAP could be significantly enhanced by down-regulating βig-h3. βig-h3 attenuates the negative regulation of NO/cGMP-sensitive store-operated Ca2+ entry. Our findings suggest that the expression of βig-h3 might play an important role in the regulation of store-operated Ca2+ entry to increase the invasive potential of HCC cells.
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Shin SH, Kim J, Heo SC, Kwon YW, Kim YM, Kim IS, Lee TG, Kim JH. Proteomic identification of betaig-h3 as a lysophosphatidic acid-induced secreted protein of human mesenchymal stem cells: paracrine activation of A549 lung adenocarcinoma cells by betaig-h3. Mol Cell Proteomics 2011; 11:M111.012385. [PMID: 22159598 DOI: 10.1074/mcp.m111.012385] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lysophosphatidic acid (LPA) is enriched in the serum and malignant effusion of cancer patients and plays a key role in tumorigenesis and metastasis. LPA-activated mesenchymal stem cells promote tumorigenic potentials of cancer cells through a paracrine mechanism. LPA-conditioned medium (LPA CM) from human adipose tissue-derived mesenchymal stem cells (hASCs) elicited adhesion and proliferation of A549 human lung adenocarcinoma cells. To identify proteins involved in the LPA-stimulated paracrine functions of hASCs, we analyzed the LPA CM using liquid-chromatography tandem mass spectrometry-based shotgun proteomics. We identified βig-h3, an extracellular matrix protein that is implicated in tumorigenesis and metastasis, as an LPA-induced secreted protein in hASCs. LPA-induced βig-h3 expression was abrogated by pretreating hASCs with the LPA receptor(1/3) inhibitor Ki16425 or small interfering RNA-mediated silencing of endogenous LPA(1). LPA-induced βig-h3 expression was blocked by treating the cells with the Rho kinase inhibitor Y27632, implying that LPA-induced βig-h3 expression is mediated by the LPA(1)- Rho kinase pathway. Immunodepletion or siRNA-mediated silencing of βig-h3 abrogated LPA CM-stimulated adhesion and proliferation of A549 cells, whereas retroviral overexpression of βig-h3 in hASCs potentiated it. Furthermore, recombinant βig-h3 protein stimulated the proliferation and adhesion of A549 human lung adenocarcinoma cells. These results suggest that hASC-derived βig-h3 plays a key role in tumorigenesis by stimulating the adhesion and proliferation of cancer cells and it can be applicable as a biomarker and therapeutic target for lung cancer.
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Affiliation(s)
- Sang Hun Shin
- Medical Research Center for Ischemic Tissue Regeneration and Medical Research Institute, Pusan National University, Yangsan 626-870, Gyeongsangnam-do, Republic of Korea
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Abstract
The dermal-epidermal basement membrane is a complex assembly of proteins that provide adhesion and regulate many important processes such as development, wound healing, and cancer progression. This contribution focuses on the structure and function of individual components of the basement membrane, how they assemble together, and how they participate in human tissues and diseases, with an emphasis on skin involvement. Understanding the composition and structure of the basement membrane provides insight into the pathophysiology of inherited blistering disorders, such as epidermolysis bullosa, and acquired bullous diseases, such as the pemphigoid group of autoimmune diseases and epidermolysis bullosa acquisita.
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Affiliation(s)
- Sana Hashmi
- Stanford University School of Medicine, Li Ka Shing Building, 291 Campus Drive, Stanford, CA 94305, USA
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Abstract
INTRODUCTION Integrins, which are heterodimeric membrane glycoproteins, consist of a family of cell-surface receptors mediating cell-matrix and cell-cell adhesion. Analysis of tumor-associated integrins has revealed an important relationship between integrins and tumor development, bringing new insights into integrin-based cancer therapies. Hepatocellular carcinoma (HCC) is one of the most malignant tumors worldwide and integrins appeal to be a novel group of potential therapeutic targets for HCC. AREAS COVERED This review summarizes the current knowledge of integrins involved in HCC and the potential of integrin-targeted drugs in HCC therapy. A brief introduction on the structure, biological function and regulatory mechanism of integrins is given. The distinct expression patterns and biological functions of HCC-associated integrins are described. Finally, the current situation of integrin-based therapies in HCC and other tumor types are extensively discussed in the light of their implications in preclinical and clinical trials. EXPERT OPINION To date, increasing numbers of integrin-targeted drugs are undergoing development and they exhibit diverse effects in cancer clinical trials. Tumor heterogeneity should be emphasized in developing effective integrin-targeted drugs specific for HCC. A better understanding of how integrins cooperatively function in HCC will assist in designing more successful integrin-targeted therapeutic drugs and corresponding approaches.
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Affiliation(s)
- Yanhua Wu
- Fudan University, Institute of Genetics, State Key Laboratory of Genetic Engineering, 220 Handan Road, Shanghai, 200433, P. R. China
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Yun SP, Ryu JM, Han HJ. Involvement of β1-integrin via PIP complex and FAK/paxillin in dexamethasone-induced human mesenchymal stem cells migration. J Cell Physiol 2011; 226:683-92. [PMID: 20717960 DOI: 10.1002/jcp.22383] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Although glucocorticoids strongly affect numerous biological processes including cell growth, development, and homeostasis, their effects on migration of human mesenchymal stem cells (hMSCs) are unclear. Therefore, we investigated the role of dexamethasone (DEX) and its related signaling pathways on migration of hMSCs. We found that DEX, at 10(-8) to 10(-6) M, significantly increased migration after a 24 h incubation, and DEX (10(-6) M) increased migration at >12 h. Moreover, DEX (10(-6) M) increased the level of glucocorticoid receptor (GR)-α mRNA and protein expression, but not GR-β mRNA. The increases in DEX-induced migration were inhibited by the GR antagonist mifepristone (10(-7) M). In addition, DEX increased integrin-linked kinase (ILK) and α-parvin expression but did not change PINCH-1/2 expression in lysate. DEX also increased formations of complex with ILK and α-parvin, and ILK and PINCH-1/2 as shown by immunoprecipitation, which were all inhibited by mifepristone. DEX-induced migration was blocked by ILK and α-parvin small interfering(si)RNAs. In addition, DEX increased focal adhesion kinase (FAK) and paxillin expression, which were attenuated by ILK and α-parvin siRNAs. DEX-induced cell migration was inhibited by FAK/paxillin siRNAs. DEX also increased β1-integrin expression, which was blocked by FAK/paxillin siRNAs. In addition, DEX-induced cell migration was inhibited by β1-integrin siRNA. Downregulation of ILK, α-parvin, FAK/paxillin and β1-integrin expression by siRNAs decreased DEX-induced filamentous(F)-actin organization and migration of hMSCs. In conclusion, DEX partially stimulates hMSC migration by the expression of β1-integrin through formation of a PINCH-1/2/ILK/α-parvin complex (PIP complex), and FAK and paxillin expression.
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Affiliation(s)
- Seung Pil Yun
- Department of Veterinary Physiology, College of Veterinary Medicine, Biotherapy Human Resources Center (BK21), Chonnam National University, Gwangju, Korea
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Reichert JC, Quent VMC, Burke LJ, Stansfield SH, Clements JA, Hutmacher DW. Mineralized human primary osteoblast matrices as a model system to analyse interactions of prostate cancer cells with the bone microenvironment. Biomaterials 2010; 31:7928-36. [PMID: 20688384 DOI: 10.1016/j.biomaterials.2010.06.055] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 06/30/2010] [Indexed: 02/06/2023]
Abstract
Prostate cancer metastasis is reliant on the reciprocal interactions between cancer cells and the bone niche/micro-environment. The production of suitable matrices to study metastasis, carcinogenesis and in particular prostate cancer/bone micro-environment interaction has been limited to specific protein matrices or matrix secreted by immortalised cell lines that may have undergone transformation processes altering signaling pathways and modifying gene or receptor expression. We hypothesize that matrices produced by primary human osteoblasts are a suitable means to develop an in vitro model system for bone metastasis research mimicking in vivo conditions. We have used a decellularized matrix secreted from primary human osteoblasts as a model for prostate cancer function in the bone micro-environment. We show that this collagen I rich matrix is of fibrillar appearance, highly mineralized, and contains proteins, such as osteocalcin, osteonectin and osteopontin, and growth factors characteristic of bone extracellular matrix (ECM). LNCaP and PC3 cells grown on this matrix, adhere strongly, proliferate, and express markers consistent with a loss of epithelial phenotype. Moreover, growth of these cells on the matrix is accompanied by the induction of genes associated with attachment, migration, increased invasive potential, Ca(2+) signaling and osteolysis. In summary, we show that growth of prostate cancer cells on matrices produced by primary human osteoblasts mimics key features of prostate cancer bone metastases and thus is a suitable model system to study the tumor/bone micro-environment interaction in this disease.
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Affiliation(s)
- Johannes C Reichert
- Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
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Ween MP, Lokman NA, Hoffmann P, Rodgers RJ, Ricciardelli C, Oehler MK. Transforming growth factor-beta-induced protein secreted by peritoneal cells increases the metastatic potential of ovarian cancer cells. Int J Cancer 2010; 128:1570-84. [PMID: 20521251 DOI: 10.1002/ijc.25494] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Accepted: 05/12/2010] [Indexed: 12/27/2022]
Abstract
Ovarian cancer metastasis is characterized by the shedding of malignant cells from the surface of the ovary and their implantation onto the peritoneal surface, which lines the abdominal cavity. As the factors promoting this process are poorly understood, we investigated the ovarian cancer-peritoneal interaction by means of in vitro coculture experiments with ovarian cancer (OVCAR-5 and SKOV-3) and peritoneal (LP-9) cells. One of the proteins differentially expressed in the coculture secretome was identified by MALDI-TOF/TOF mass spectrometry as the extracellular matrix protein transforming growth factor-beta-induced protein (TGFBIp, also known as βig-H3). Immunohistochemistry showed high TGFBIp levels in normal surface ovarian epithelial and peritoneal cells, whereas TGFBIp levels in primary serous ovarian carcinomas and matching metastatic implants was very low. In functional in vitro experiments, treatment with recombinant TGFBIp significantly increased the motility and invasiveness of OVCAR-5 and SKOV-3 cells and significantly increased ovarian cancer cell (OVCAR-5, OVCAR-3 and SKOV-3) adhesion to LP-9 cells. TGFBIp was found to be processed at both the N- and C-terminus in the secretome of the ovarian cancer-peritoneal cell coculture. Plasmin inhibitors blocked TGFBIp processing and significantly reduced OVCAR-5 cell adhesion to peritoneal cells. We conclude that TGFBIp expressed by peritoneal cells increases the metastatic potential of ovarian cancer cells. TGFBIp is therefore a potential novel therapeutic target against ovarian cancer.
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Affiliation(s)
- Miranda P Ween
- Discipline of Obstetrics and Gynaecology, University of Adelaide, Adelaide, SA, Australia
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Ko MS, Marinkovich MP. Role of dermal-epidermal basement membrane zone in skin, cancer, and developmental disorders. Dermatol Clin 2010; 28:1-16. [PMID: 19945611 DOI: 10.1016/j.det.2009.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The dermal-epidermal basement membrane zone is an important epithelial and stromal interface, consisting of an intricately organized collection of intracellular, transmembrane, and extracellular matrix proteins. The basement membrane zone has several main functions including acting as a permeability barrier, forming an adhesive interface between epithelial cells and the underlying matrix, and controlling cellular organization and differentiation. This article identifies key molecular players of the dermal-epidermal membrane zone, and highlights recent research studies that have identified structural and functional roles of these components in the context of various blistering, neoplastic, and developmental syndromes.
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Affiliation(s)
- Myung S Ko
- Program in Epithelial Biology, Stanford University School of Medicine, 269 Campus Drive, Stanford, CA 94305, USA
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Shelton L, Rada JAS. Inhibition of human scleral fibroblast cell attachment to collagen type I by TGFBIp. Invest Ophthalmol Vis Sci 2009; 50:3542-52. [PMID: 19387070 DOI: 10.1167/iovs.09-3460] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Transforming growth factor beta-induced protein (TGFBIp; 68 kDa) is a secreted extracellular matrix (ECM) protein that has been demonstrated to regulate cell attachment in a variety of cell types. The sclera synthesizes and secretes TGFBIp, which may function to facilitate scleral ECM remodeling events associated with myopia development. Here the authors report that human scleral fibroblasts (HSFs) express TGFBI and that its protein product, TGFBIp, mediates an effect on cell attachment. METHODS TGFBI/TGFBIp expression was evaluated by RT-PCR and immunoblot of HSF lysates and culture supernatants. The effect of rTGFBIp (50 microg/mL) on cell attachment to collagen type I was determined with the use of fluid-phase cell attachment assays in HSFs, human foreskin fibroblasts (HFFs), and human corneal stroma fibroblasts (HCFs). Binding assays using biotinylated rTGFBIp were used to assess TGFBIp binding to the HSF surface. Flow cytometry and immunocytochemistry were used to determine both alphavbeta3 and alphavbeta5 expression and localization to the HSF cell surface. RESULTS HSFs expressed TGFBI and secreted TGFBIp (approximately 833 ng/h). rTGFBIp significantly decreased (25 microg/mL; P <or= 0.05) HSF attachment to collagen type I, whereas rTGFBIp did not significantly affect cell attachment of HFFs (P = 0.50) or HCFs (P = 0.24) to collagen compared with BSA. Integrins alphavbeta3 and alphavbeta5 were detected on the cell surface, and both anti-alphavbeta3 and anti-alphavbeta5 functionally blocked rTGFBIp binding to HSFs. CONCLUSIONS TGFBIp plays an inhibitory role in HSF attachment to collagen type I in vitro through interactions with alphavbeta3 and alphavbeta5 integrin receptors. These results suggest that TGFBIp may modulate scleral cell-matrix interactions in vivo, thereby affecting scleral viscoelasticity.
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Affiliation(s)
- Lilian Shelton
- Department of Cell Biology, University of Oklahoma Health Science Center, Oklahoma City, OK 73104, USA
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