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Liu J, Wang M, Wang M, Wang F, Zhang B. LncRNAs-Regulated High Expression of LAMC2 Reveals a Prognostic and Immunological Value in Pancreatic Adenocarcinoma. Biochem Genet 2024; 62:485-503. [PMID: 37382751 DOI: 10.1007/s10528-023-10435-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/18/2023] [Indexed: 06/30/2023]
Abstract
Pancreatic adenocarcinoma (PAAD) is one of the most hazardous cancers in digestive system, and the prognosis is notoriously bad. Increasing evidences indicate that Laminin Subunit Gamma 2 (LAMC2) is critical for the initiation and the growth of various sorts of human cancers. However, the involved molecular pathways of LAMC2 in PAAD are still poorly understood. In this study, prediction programs and databases were employed to conduct pan-cancer analysis. Multiple variations of human malignancies showed increased LAMC2 expression, which was positively correlated to a poor prognosis in PAAD. Moreover, LAMC2 was positively correlated with the biomarkers of immune cells including CD19, CD163, and NOS2 in PAAD. The lncRNA C5orf66 /PTPRG-AS1- miR-128-3p -LAMC2 axis was identified to be a potential upstream regulatory pathway of LAMC2 in PAAD. Furthermore, LAMC2 upregulation in PAAD was associated with PD-L1 expression, indicating promoting carcinoma immune cell infiltration. Our study elucidated prognostic and immunological values of LAMC2 in PAAD, providing a promise target for PAAD treatment.
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Affiliation(s)
- Jingyun Liu
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Mengyue Wang
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Miaowen Wang
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Fu Wang
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Xianyang Key Laboratory of Molecular Imaging and Drug Synthesis, School of Pharmacy, Shaanxi Institute of International Trade and Commerce, Xianyang, 712046, China.
| | - Beilei Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi, China.
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2
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Katayama S, Koga K, Fujimoto M, Matsuzaki I, Nabeshima K, Imafuku S, Hamasaki M. Expression of laminin332 γ2 at the invasive front is associated with tumor budding and poor prognosis in cutaneous squamous cell carcinoma. J Dermatol 2023; 50:1585-1593. [PMID: 37752805 DOI: 10.1111/1346-8138.16952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023]
Abstract
Laminin332 is a glycoprotein consisting of α3/β3/γ2 chains, of which the γ2 chain (Ln-γ2) is expressed in tumor cells at the invasive front in many types of malignant tumors. We have previously reported that Ln-γ2 is associated with tumor invasion of cutaneous squamous cell carcinoma (cSCC) in vivo and in vitro. Recently, tumor budding (TB; invasion patterns in small clusters of less than five cancer cells in the stroma at the invasive front) has been reported to be a risk factor for lymph node metastasis in cSCC. Based on these findings, we speculated that expression of Ln-γ2 is related to TB in cSCC and would be an invasive factor that causes lymph node metastasis. In this study, we investigated the relationship between Ln-γ2 expression and clinicopathological findings, including TB, in 102 cases of cSCC using immunohistochemistry. The results showed that high expression of Ln-γ2 at the invasive front correlated with a high TB score. In addition, high Ln-γ2 expression at the invasive front was also associated with lymphatic invasion, lymph node metastasis, and poor prognosis (death or recurrence), as in TB. Furthermore, we showed a positive association between Ln-γ2 expression at the invasive front and Yes-associated protein (YAP) expression in the Hippo pathway. Our results suggest that Ln-γ2 expression at the invasive front may have a role in TB formation via YAP and contribute to prognosis by causing lymphatic invasion and lymph node metastasis. The expression of Ln-γ2 would be useful for risk assessment of lymph node metastasis and poor prognosis in routine practice of cSCC.
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Affiliation(s)
- Shiori Katayama
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
- Department of Dermatology, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Kaori Koga
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Masakazu Fujimoto
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Ibu Matsuzaki
- Department of Human Pathology, Wakayama Medical University, Wakayama, Japan
| | - Kazuki Nabeshima
- Department of Clinical Pathology, Pathological Diagnosis Center, Fukuoka Tokushukai Hospital, Kasuga, Japan
| | - Shinichi Imafuku
- Department of Dermatology, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Makoto Hamasaki
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
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3
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Shi L, Li X, Qian H. Anti-Laminin 332-Type Mucous Membrane Pemphigoid. Biomolecules 2022; 12:biom12101461. [PMID: 36291670 PMCID: PMC9599625 DOI: 10.3390/biom12101461] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 12/03/2022] Open
Abstract
Anti-laminin (LM) 332-type mucous membrane pemphigoid (MMP) is a rare autoimmune bullous disease and was originally discovered as anti-epiligrin cicatricial pemphigoid. Anti-LM332-type MMP has clinical manifestations similar to those of other types of MMP and can only be distinguished through the detection of circulating autoantibodies against LM332. Our group and others have established a number of immunological methods with varying sensitivity and specificity for detection of anti-LM332 autoantibodies; however, none of the established methods has been widely used for clinical diagnosis. There is currently no unified standard treatment, and it is very difficult to completely cure anti-LM332-type MMP. In addition, an increasing body of evidence suggests that there may be a strong correlation between anti-LM332-type MMP and tumors. In this article, we review the current progression of diagnosis and treatment of anti-LM332-type MMP, as well as the possible correlation between anti-LM332-type MMP and tumors.
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Affiliation(s)
- Luhuai Shi
- Dermatology Hospital of Jiangxi Province, Jiangxi Provincial Clinical Research Center for Skin Diseases, Candidate Branch of National Clinical Research Center for Skin Diseases, Dermatology Institute of Jiangxi Province, The Affiliated Dermatology Hospital of Nanchang University, Nanchang 330001, China
| | - Xiaoguang Li
- Department of Laboratory Medicine, Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
| | - Hua Qian
- Department of Laboratory Medicine, Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
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4
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Švec J, Šťastná M, Janečková L, Hrčkulák D, Vojtěchová M, Onhajzer J, Kříž V, Galušková K, Šloncová E, Kubovčiak J, Pfeiferová L, Hrudka J, Matěj R, Waldauf P, Havlůj L, Kolář M, Kořínek V. TROP2 Represents a Negative Prognostic Factor in Colorectal Adenocarcinoma and Its Expression Is Associated with Features of Epithelial-Mesenchymal Transition and Invasiveness. Cancers (Basel) 2022; 14:4137. [PMID: 36077674 PMCID: PMC9454662 DOI: 10.3390/cancers14174137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/09/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Trophoblastic cell surface antigen 2 (TROP2) is a membrane glycoprotein overexpressed in many solid tumors with a poor prognosis, including intestinal neoplasms. In our study, we show that TROP2 is expressed in preneoplastic lesions, and its expression is maintained in most colorectal cancers (CRC). High TROP2 positivity correlated with lymph node metastases and poor tumor differentiation and was a negative prognostic factor. To investigate the role of TROP2 in intestinal tumors, we analyzed two mouse models with conditional disruption of the adenomatous polyposis coli (Apc) tumor-suppressor gene, human adenocarcinoma samples, patient-derived organoids, and TROP2-deficient tumor cells. We found that Trop2 is produced early after Apc inactivation and its expression is associated with the transcription of genes involved in epithelial-mesenchymal transition, the regulation of migration, invasiveness, and extracellular matrix remodeling. A functionally similar group of genes was also enriched in TROP2-positive cells from human CRC samples. To decipher the driving mechanism of TROP2 expression, we analyzed its promoter. In human cells, this promoter was activated by β-catenin and additionally by the Yes1-associated transcriptional regulator (YAP). The regulation of TROP2 expression by active YAP was verified by YAP knockdown in CRC cells. Our results suggest a possible link between aberrantly activated Wnt/β-catenin signaling, YAP, and TROP2 expression.
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Affiliation(s)
- Jiří Švec
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
- Department of Oncology, Third Faculty of Medicine, Charles University, University Hospital Kralovské Vinohrady, Šrobárova 1150/50, 100 34 Prague, Czech Republic
| | - Monika Šťastná
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Lucie Janečková
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Dušan Hrčkulák
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Martina Vojtěchová
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Jakub Onhajzer
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Vítězslav Kříž
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Kateřina Galušková
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Eva Šloncová
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Jan Kubovčiak
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Lucie Pfeiferová
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
- Department of Informatics and Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Jan Hrudka
- Department of Pathology, Third Faculty of Medicine, Charles University, University Hospital Kralovské Vinohrady, Šrobárova 1150/50, 100 34 Prague, Czech Republic
| | - Radoslav Matěj
- Department of Pathology, Third Faculty of Medicine, Charles University, University Hospital Kralovské Vinohrady, Šrobárova 1150/50, 100 34 Prague, Czech Republic
- Department of Pathology and Molecular Medicine, Third Medical Faculty, Charles University, Thomayer University Hospital, Ruská 87, 100 00 Praha, Czech Republic
| | - Petr Waldauf
- Department of Anaesthesia and Intensive Care Medicine, Third Faculty of Medicine, Charles University, University Hospital Kralovské Vinohrady, Šrobárova 1150/50, 100 34 Prague, Czech Republic
| | - Lukáš Havlůj
- Department of General Surgery, Third Faculty of Medicine, Charles University, University Hospital Kralovské Vinohrady, Šrobárova 1150/50, 100 34 Prague, Czech Republic
| | - Michal Kolář
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Vladimír Kořínek
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
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Mandal JP, Shiue CN, Chen YC, Lee MC, Yang HH, Chang HH, Hu CT, Liao PC, Hui LC, You RI, Wu WS. PKCδ mediates mitochondrial ROS generation and oxidation of HSP60 to relieve RKIP inhibition on MAPK pathway for HCC progression. Free Radic Biol Med 2021; 163:69-87. [PMID: 33307168 DOI: 10.1016/j.freeradbiomed.2020.12.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/25/2020] [Accepted: 12/01/2020] [Indexed: 12/15/2022]
Abstract
Both protein kinase C (PKC) and reactive oxygen species (ROS) are well-known signaling messengers cross-talking with each other to activate mitogen-activated protein kinases (MAPKs) for progression of hepatocellular carcinoma (HCC). However, the underlying mechanisms are not well elucidated. Especially, whether mitochondrial ROS (mtROS) is involved and how it triggers MAPK signaling are intriguing. In this study, we found mtROS generation and phosphorylation of MAPKs were mediated by PKCδ in HCCs treated with the tumor promoter 12-O-tetradecanoyl-phorbol-13-acetate (TPA). Heat shock protein 60 (HSP60), one of the chaperones in mitochondria was the major protein oxidized in TPA-treated HCCs. Moreover, depletion of HSP60 or expression of HSP60 cysteine mutant prevented TPA-induced phosphorylation of MAPKs. To delineate how HSP60 mediated MAPK activation, the role of Raf kinase inhibitor protein (RKIP), a negative regulator of MAPK, was investigated. TPA dissociated RKIP from HSP60 in both mitochondria and cytosol, concurrently with translocation of HSP60 and MAPK from mitochondria to cytosol, which was associated with robust phosphorylation of MAPKs in the cytosol. Moreover, TPA induced opposite phenotypical changes of HCCs, G1 cell cycle arrest, and cell migration, which were prevented by mtROS scavengers and depletion of PKCδ and HSP60. Consistently, TPA increased the migration-related genes, hydrogen peroxide inducible clone5, matrix metalloproteinase-1/3, lamininγ2, and suppressed the cell cycle regulator cyclin E1 (CCNE1) via PKCδ/mtROS/HSP60/MAPK-axis. Finally, c-jun and c-fos were required for TPA-induced expression of the migration-related genes and a novel microRNA, miR-6134, was responsible for TPA-induced suppression of CCNE1. In conclusion, PKCδ cross-talked with mtROS to trigger HSP60 oxidation for release of RKIP to activate MAPK, regulating gene expression for migration, and G1 cell cycle arrest in HCC. Targeted therapy aiming at key players like PKCδ, RKIP, and HSP60 is promising for preventing HCC progression.
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Affiliation(s)
| | - Chiou-Nan Shiue
- Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien, Taiwan.
| | - Yen-Cheng Chen
- Division of General Surgery, Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical foundation, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Ming-Che Lee
- Division of General Surgery, Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical foundation, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Hsueh-Hui Yang
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, 970, Taiwan.
| | - Hsin-Hou Chang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien, Taiwan.
| | - Chi-Tan Hu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Division of Gastroenterology, Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical foundation, Hualien, Taiwan; Research Centre for Hepatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical foundation, Hualien, Taiwan.
| | - Pei-Chen Liao
- Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien, Taiwan.
| | - Lin-Ching Hui
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Ren-In You
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Wen-Sheng Wu
- Division of General Surgery, Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical foundation, Hualien, Taiwan; Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan.
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6
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Ojalill M, Virtanen N, Rappu P, Siljamäki E, Taimen P, Heino J. Interaction between prostate cancer cells and prostate fibroblasts promotes accumulation and proteolytic processing of basement membrane proteins. Prostate 2020; 80:715-726. [PMID: 32364250 DOI: 10.1002/pros.23985] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/03/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Tumor microenvironment or stroma has the potency to regulate the behavior of malignant cells. Fibroblast-like cells are abundant in tumor stroma and they are also responsible for the synthesis of many extracellular matrix components. Fibroblast-cancer cell interplay can modify the functions of both cell types. METHODS We applied mass spectrometry and proteomics to unveil the matrisome in 3D spheroids formed by DU145 prostate cancer cells, PC3 prostate cancer cells, or prostate-derived fibroblasts. Similarly, DU145/fibroblast and PC3/fibroblast coculture spheroids were also analyzed. Western blot analysis and immunofluorescence were used to confirm the presence of specific proteins in spheroids. Cancer dissemination was studied by utilizing "out of spheroids" migration and invasion assays. RESULTS In the spheroid model cancer cell-fibroblast interplay caused remarkable changes in the extracellular matrix and accelerated the invasion of DU145 cells. Fibroblasts produced structural matrix proteins, growth factors, and matrix metalloproteinases. In cancer cell/fibroblast cocultures basement membrane components, including laminins (α3, α5, β2, and β3), heparan sulfate proteoglycan (HSPG2 gene product), and collagen XVIII accumulated in a prominent manner when compared with spheroids that contained fibroblasts or cancer cells only. Furthermore, collagen XVIII was intensively processed to different endostatin-containing isoforms by cancer cell-derived cathepsin L. CONCLUSIONS Fibroblasts can promote carcinoma cell dissemination by several different mechanisms. Extracellular matrix and basement membrane proteins provide attachment sites for cell locomotion promoting adhesion receptors. Growth factors and metalloproteinases are known to accelerate cell invasion. In addition, cancer cell-fibroblast interplay generates biologically active fragments of basement membrane proteins, such as endostatin.
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Affiliation(s)
| | - Noora Virtanen
- Department of Biochemistry, University of Turku, Turku, Finland
| | - Pekka Rappu
- Department of Biochemistry, University of Turku, Turku, Finland
| | - Elina Siljamäki
- Department of Biochemistry, University of Turku, Turku, Finland
| | - Pekka Taimen
- Department of Pathology, Turku University Hospital, University of Turku, Turku, Finland
| | - Jyrki Heino
- Department of Biochemistry, University of Turku, Turku, Finland
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Zhu Z, Song J, Guo Y, Huang Z, Chen X, Dang X, Huang Y, Wang Y, Ou W, Yang Y, Yu W, Liu CY, Cui L. LAMB3 promotes tumour progression through the AKT-FOXO3/4 axis and is transcriptionally regulated by the BRD2/acetylated ELK4 complex in colorectal cancer. Oncogene 2020; 39:4666-4680. [PMID: 32398865 DOI: 10.1038/s41388-020-1321-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 12/19/2022]
Abstract
Aberrant expression of laminin-332 promotes tumour growth and metastasis in multiple cancers. However, the dysregulated expression and mechanism of action of LAMB3, which encodes the β3 subunit of laminin-332, and the mechanism underlying dysregulated LAMB3 expression in CRC remain obscure. Here, we show that LAMB3 is overexpressed in CRC and that this overexpression is correlated with tumour metastasis and poor prognosis. Overexpression of LAMB3 promoted cell proliferation and cell migration in vitro and tumour growth and metastasis in vivo, while knockdown of LAMB3 elicited opposing effects. LAMB3 inhibited the tumour suppressive function of FOXO3/4 by activating AKT in CRC. Both the BET inhibitor JQ1 and the MEK inhibitor U0126 decreased the mRNA level of LAMB3 in multiple CRC cells. Mechanistically, ELK4 cooperated with BRD2 to regulate the transcription of LAMB3 in CRC by directly binding to the ETS binding motifs in the LAMB3 promoter. ELK4 was as acetylated at K125, which enhanced the interaction between ELK4 and BRD2. JQ1 disrupted the interaction between ELK4 and BRD2, resulting in decreased binding of BRD2 to the LAMB3 promoter and downregulation of LAMB3 transcription. Both ELK4 and BRD2 expression was associated with LAMB3 expression in CRC. LAMB3 expression was also negatively correlated with FOXO3/4 in CRC. Our study reveals the pro-tumorigenic role of LAMB3 through the AKT-FOXO3/4 axis and the transcriptional mechanism of LAMB3 in CRC, demonstrating that LAMB3 is a potential therapeutic target that can be targeted by BET inhibitors and MEK inhibitors.
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Affiliation(s)
- Zhehui Zhu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China
| | - Jinglue Song
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China
| | - Yuegui Guo
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China
| | - Zhenyu Huang
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China
| | - Xiaojian Chen
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China
| | - Xuening Dang
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China
| | - Yuji Huang
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China
| | - Yuhan Wang
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China
| | - Weijun Ou
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China
| | - Yili Yang
- Suzhou Institute of Systems Medicine, Center for Systems Medicine Research, Chinese Academy of Medical Sciences, 215123, Suzhou, Jiangsu, China
| | - Wei Yu
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Zhongshan Hospital, Fudan University, 200438, Shanghai, China.
| | - Chen-Ying Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China.
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China.
| | - Long Cui
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China.
- Shanghai Colorectal Cancer Research Center, 200092, Shanghai, China.
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8
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Koga K, Anan T, Fukumoto T, Fujimoto M, Nabeshima K. Ln-γ 2 chain of laminin-332 is a useful marker in differentiating between benign and malignant sclerosing adnexal neoplasms. Histopathology 2020; 76:318-324. [PMID: 31429981 DOI: 10.1111/his.13974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/17/2019] [Indexed: 11/26/2022]
Abstract
AIMS Laminin (Ln)-γ 2, one of the chains of Ln-332, is a marker of invasive tumours and is frequently expressed as a monomer in malignant tumours. Desmoplastic trichoepithelioma (DTE), some types of basal cell carcinoma (BCC) (infiltrating and morphoeic BCC) and microcystic adnexal carcinoma (MAC) belong to a group of tumours known as sclerosing adnexal neoplasms (SAN) that are frequently difficult to differentiate and often require immunohistochemistry for diagnosis. The aim of this study was to assess the usefulness of Ln-γ 2 expression in the differential diagnosis of DTE, infiltrating/morphoeic BCC, MAC and syringoma. METHODS AND RESULTS In this study, we compared the expression of Ln-γ 2 in infiltrating/morphoeic BCC (n = 28), DTE (n = 26), MAC (n = 10) and syringoma (n = 20). Immunohistochemically, Ln-γ 2 positivity was noted in 96% (27 cases) of infiltrating/morphoeic BCC and 90% (nine cases) of MAC, while all DTE and syringoma cases were negative. Furthermore, Ln-γ 2 expression pattern in infiltrating/morphoeic BCC was different from that in MAC. Ln-γ 2 expression was found in the cytoplasm of tumour cells in infiltrating/morphoeic BCC tumour cells, while in MAC linear expression was noted both along tumour nests and in the cytoplasm. CONCLUSION Ln-γ 2 is a helpful adjunct in the differential diagnosis of SAN.
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Affiliation(s)
- Kaori Koga
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Takashi Anan
- Sapporo Dermatopathology Institute, Sapporo, Japan
| | | | - Masakazu Fujimoto
- Department of Diagnostic Pathology, Wakayama Medical University, Wakayama, Japan
| | - Kazuki Nabeshima
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
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9
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Kamada M, Koshikawa N, Minegishi T, Kawada C, Karashima T, Shuin T, Seiki M. Urinary laminin-γ2 is a novel biomarker of non-muscle invasive urothelial carcinoma. Cancer Sci 2015; 106:1730-7. [PMID: 26450632 PMCID: PMC4714663 DOI: 10.1111/cas.12832] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 10/01/2015] [Accepted: 10/05/2015] [Indexed: 12/15/2022] Open
Abstract
Lack of appropriate biomarkers has hampered early detection of urothelial cancer (UC), therefore, development of biomarkers for its diagnosis at earlier stages is of importance. Laminin‐332 (Ln‐332, formerly Ln‐5), a component of basement membranes, consists of Ln‐α3, Ln‐β3, and Ln‐γ2 polypeptides. However, monomeric Ln‐γ2 alone is frequently expressed in malignant neoplasms. If Ln‐γ2 is also expressed in UC and secreted into the urine, its detection could be useful for UC diagnosis. Here, we evaluated Ln‐γ2 levels from 60 patients with urinary diseases (including UC) by Western blotting, and detected it in approximately 53% of UC cases. Using immunohistochemistry, we confirmed Ln‐γ2 expression in UC tissues that were positive for Ln‐γ2, whereas Ln‐α3 expression was absent. We next developed a sandwich enzyme‐linked immunosorbent assay and applied it for screening 39 patients with non‐muscle invasive UC and 61 patients with benign urologic diseases. The Ln‐γ2 levels were higher in UC patients than in those with benign urologic diseases. Ln‐γ2 was detected even in patients with earlier stages of UC, such as Ta, T1, or carcinoma in situ. The sensitivity of Ln‐γ2 testing for UC was 97.4%, and the specificity was 45.9%, using a cut‐off of 0.5 μg/g∙crn. Ln‐γ2 had greater diagnostic value for detecting non‐muscle invasive UC compared to conventional urine cytology and available biomarkers for UC, and may be useful as a urine biomarker for the diagnosis and monitoring of UC.
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Affiliation(s)
| | - Naohiko Koshikawa
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tomoko Minegishi
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Chiaki Kawada
- Department of Urology, Kochi Medical School, Kochi, Japan
| | | | - Taro Shuin
- Department of Urology, Kochi Medical School, Kochi, Japan
| | - Motoharu Seiki
- Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Kanazawa University, School of Medicine, Kanazawa, Japan
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10
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The role of components of the extracellular matrix and inflammation on oral squamous cell carcinoma metastasis. Arch Oral Biol 2014; 59:1155-63. [DOI: 10.1016/j.archoralbio.2014.07.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/25/2014] [Accepted: 07/13/2014] [Indexed: 11/18/2022]
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11
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Chen JC, Erikson DW, Piltonen TT, Meyer MR, Barragan F, McIntire RH, Tamaresis JS, Vo KC, Giudice LC, Irwin JC. Coculturing human endometrial epithelial cells and stromal fibroblasts alters cell-specific gene expression and cytokine production. Fertil Steril 2013; 100:1132-43. [PMID: 23849844 DOI: 10.1016/j.fertnstert.2013.06.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 05/31/2013] [Accepted: 06/04/2013] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To determine the effects of coculturing endometrial epithelial cells (eEC) with paired endometrial stromal fibroblasts (eSF) on cell-specific gene expression and cytokine secretion patterns. DESIGN In vitro study. SETTING University research laboratory. PATIENT(S) Endometrial biopsies were obtained from premenopausal women. INTERVENTION(S) Polarized eEC and subject-paired eSF were cultured for 12.5 hours alone (monoculture) or combined in a two-chamber coculture system without cell-cell contact. Cells and conditioned media were analyzed for global gene expression and cytokine secretion, respectively. Purified, endometrial tissue-derived eEC and eSF isolated by fluorescent activated cell sorting (FACS) were used as noncultured controls. MAIN OUTCOME MEASURE(S) Cell-specific global gene expression profiling and analysis of secreted cytokines in eEC/eSF cocultures and respective monocultures. RESULT(S) Transepithelial resistance, diffusible tracer exclusion, expression of tight junction proteins, and apical/basolateral vectorial secretion confirmed eEC structural and functional polarization. Distinct transcriptomes of eEC and eSF were consistent with their respective lineages and their endometrial origin. Coculture of eEC with eSF resulted in altered cell-specific gene expression and cytokine secretion. CONCLUSION(S) This coculture model provides evidence that interactions between endometrial functionally polarized epithelium and stromal fibroblasts affect cell-specific gene expression and cytokine secretion underscoring their relevance when modeling endometrium in vitro.
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Affiliation(s)
- Joseph C Chen
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, Center for Reproductive Sciences, San Francisco, California
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Expression of laminin 5-γ2 chain in cutaneous squamous cell carcinoma and its role in tumour invasion. Br J Cancer 2011; 105:824-32. [PMID: 21829200 PMCID: PMC3171006 DOI: 10.1038/bjc.2011.283] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background: Laminin-5 (Ln5), a heterotrimer composed of three chains (α3, β3, and γ2), is a major component of the basement membrane in most adult tissues. One of the chains, Ln5-γ2, is a marker of invasive tumours because it is frequently expressed as a monomer in malignant tumours. Recent studies from our laboratories detected higher levels of Ln5-γ2 expression in basal cell carcinoma (BCC) than in trichoblastoma. Furthermore, Ln5-γ2 overexpression tended to correlate with aggressiveness in BCC. Methods: In this study, we compared the expression of Ln5-γ2 in invasive squamous cell carcinoma (SCC, n=62) of the skin to that in preinvasive Bowen’s disease (BD, n=51), followed by analysis of the role of Ln5-γ2 in cancer invasion in vitro. Results: Immunohistochemically, the proportion of SCC cases (86%) strongly positive for Ln5-γ2 expression was higher than that of BD (16%). Real-time RT–PCR showed Ln5-γ2 overexpression in SCC cell line, A431, compared with normal keratinocyte cell line, HaCaT. Ln5-γ2 monomer and proteolytically cleaved, biologically active fragments of Ln5-γ2 were identified in SCC tumour extracts. In in vitro raft cultures, which simulate in vivo conditions, Ln5-γ2 siRNA significantly suppressed epidermal growth factor (EGF)-stimulated A431 cell invasion. Conclusion: Our results indicate that Ln5-γ2 has a role in cutaneous SCC invasion.
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13
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Coskun M, Olsen J, Seidelin JB, Nielsen OH. MAP kinases in inflammatory bowel disease. Clin Chim Acta 2011; 412:513-20. [DOI: 10.1016/j.cca.2010.12.020] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 12/16/2010] [Accepted: 12/17/2010] [Indexed: 12/16/2022]
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14
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Abstract
Five different laminin (LM) alpha, four LM-beta, and three LM-gamma chains form the 15-16 currently known approximately 400-900 kDa heterodimeric LM-monomers, which self-assemble in the lamina lucida of the basement membrane (BM) to a network, connected with nidogens and perlecans with the underlying type IV collagen network. In labial salivary glands (LSG), the structurally organizing/polarizing BM separates the tubuloacinar epithelium from the connective tissue stroma but plays regulatory roles as well. Tissue distribution of LM-alpha, -beta, and -gamma chains is described, and application of the known combinatorial rules allows some conclusions also on the corresponding distribution of the LM-trimers. Currently, known integrin (Int) and non integrin (e.g., dystroglycans and Lutheran blood group antigens) LM-receptors are described. LMs are regulated at transcriptional, translational, and posttranslational levels, together with the regulation of alternative splicing, binding partners (assembly), secretion, and degradation. In LSGs, LM-alpha1, -alpha2, and -alpha4 are only found in the acinar (not ductal) BM, LM-alpha4 also in the periductal/ interstitial stroma. Pattern recognition disclosed irregular expression in the acinar BM, suggesting some dynamic and/or regulatory role. It seems that in a female-dominant autoimmune exocrinopathy, Sjögren's syndrome (SS), LM-alpha1 and -alpha2 are decreased, together with their Int alpha1beta1 and alpha2beta1 receptors. Because LM-111/211-to-Int-alpha1beta1/alpha2beta1 interactions play a crucial role in the transdifferentiation of the intercalated duct progenitors to secretory acinar cells, acinar remodeling is impaired in SS. Disturbed hemidesmosomal Int alpha6beta4/LM-332 interactions in SS may lead to acinar cell anoikis. Interestingly, dehydroepiandrosterone (DHEA) prohormone and its intracrine androgenic dihydrotestosterone (DHT) end product upregulate at least Int alpha1beta1/alpha2beta1, whereas LM-alpha1 is upregulated by outside-in LM-111/211-to-Int-alpha1beta1/alpha2beta1 signaling. It seems that LM alterations precede the lymphocyte infiltration, suggesting that acinar BM-Int pathology, perhaps related to endo- and intracrine sex steroid metabolism, represents an early pathogenic phases in SS.
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Coskun M, Boyd M, Olsen J, Troelsen JT. Control of intestinal promoter activity of the cellular migratory regulator gene ELMO3 by CDX2 and SP1. J Cell Biochem 2010; 109:1118-28. [PMID: 20127720 DOI: 10.1002/jcb.22490] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An important aspect of the cellular differentiation in the intestine is the migration of epithelial cells from the crypt to the villus tip. As homeodomaine transcription factor CDX2 has been suggested to influence cell migration, we performed a genome-wide promoter analysis for CDX2 binding in the differentiated human intestinal cancer cell line Caco-2 in order to identify CDX2-regulated genes involved in cellular migration. The engulfment and cell motility 3 (ELMO3) gene was identified as a potential CDX2 target gene. ELMO3 is an essential upstream regulator of the GTP-binding protein RAC during cell migration. However, no information is available about the transcriptional regulation of the ELMO3 gene. The aim of this study was to investigate the potential role of CDX2 in the regulation of the ELMO3 promoter activity. Electrophoretic mobility shift assays showed that CDX2 bound to conserved CDX2 sequences and mutations of the CDX2-binding sites, significantly reduced the promoter activity. Reporter gene assays demonstrated that the region mediating ELMO3 basal transcriptional activity to be located between -270 and -31 bp. Sequence analysis revealed no typical TATA-box, but four GC-rich sequences. In vitro analyses (electrophoretic mobility shift assays and promoter analyses) demonstrate that the SP1-binding sites are likely to play an important role in regulating the ELMO3 promoter activity. Furthermore, we showed here that CDX2 and SP1 can activate the ELMO3 promoter. Taken together, the present study reports the first characterization of the ELMO3 promoter and suggests a significant role of CDX2 in the basal transcriptional regulation of the intestine-specific expression of ELMO3, possibly through interaction with SP1.
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Affiliation(s)
- Mehmet Coskun
- Faculty of Health Sciences, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, DK-2200 Copenhagen N, Denmark
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16
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Zboralski D, Warscheid B, Klein-Scory S, Malas MB, Becker H, Böckmann M, Meyer HE, Schmiegel W, Simon-Assmann P, Schwarte-Waldhoff I. Uncoupled responses of Smad4-deficient cancer cells to TNFalpha result in secretion of monomeric laminin-gamma2. Mol Cancer 2010; 9:65. [PMID: 20307265 PMCID: PMC2853515 DOI: 10.1186/1476-4598-9-65] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Accepted: 03/22/2010] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Functional loss of the tumor suppressor Smad4 is involved in pancreatic and colorectal carcinogenesis and has been associated with the acquisition of invasiveness. We have previously demonstrated that the heterotrimeric basement membrane protein laminin-332 is a Smad4 target. Namely, Smad4 functions as a positive transcriptional regulator of all three genes encoding laminin-332; its loss is thus implicated in the reduced or discontinuous deposition of the heterotrimeric basement membrane molecule as evident in carcinomas. Uncoupled expression of laminin genes, on the other hand, namely overexpression of the laminin-gamma2 chain is an impressive marker at invasive edges of carcinomas where tumor cells are maximally exposed to signals from stromal cell types like macrophages. As Smad4 is characterized as an integrator of multiple extracellular stimuli in a strongly contextual manner, we asked if loss of Smad4 may also be involved in uncoupled expression of laminin genes in response to altered environmental stimuli. Here, we address Smad4 dependent effects of the prominent inflammatory cytokine TNFalpha on tumor cells. RESULTS Smad4-reconstituted colon carcinoma cells like adenoma cells respond to TNFalpha with an increased expression of all three chains encoding laminin-332; coincubation with TGFbeta and TNFalpha leads to synergistic induction and to the secretion of large amounts of the heterotrimer. In contrast, in Smad4-deficient cells TNFalpha can induce expression of the gamma2 and beta3 but not the alpha3 chain. Surprisingly, this uncoupled induction of laminin-332 chains in Smad4-negative cells rather than causing intracellular accumulation is followed by the release of gamma2 into the medium, either in a monomeric form or in complexes with as yet unknown proteins. Soluble gamma2 is associated with increased cell migration. CONCLUSIONS Loss of Smad4 may lead to uncoupled induction of laminin-gamma2 in response to TNFalpha and may therefore represent one of the mechanisms which underlie accumulation of laminin-gamma2 at the invasive margin of a tumor. The finding, that gamma2 is secreted from tumor cells in significant amounts and is associated with increased cell migration may pave the way for further investigation to better understand its functional relevance for tumor progression.
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Affiliation(s)
- Dirk Zboralski
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
| | - Bettina Warscheid
- Medizinisches Proteom-Center, Ruhr-Universität Bochum, Bochum, Germany
| | - Susanne Klein-Scory
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
| | - M Bassel Malas
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
| | - Heiko Becker
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
| | - Miriam Böckmann
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-Universität Bochum, Bochum, Germany
| | - Helmut E Meyer
- Medizinisches Proteom-Center, Ruhr-Universität Bochum, Bochum, Germany
| | - Wolff Schmiegel
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
- Abtlg. Gastroenterologie und Hepatologie, Kliniken Bergmannsheil, Ruhr-Universität Bochum, Bochum, Germany
| | - Patricia Simon-Assmann
- Inserm, U682, Strasbourg, F-67200 France; Univ Strasbourg, UMR-S682, Strasbourg, F-67081 France
| | - Irmgard Schwarte-Waldhoff
- Medizinische Universitätsklinik, Knappschaftskrankenhaus, IMBL, Ruhr-Universität Bochum, Bochum, Germany
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The role of the basement membrane as a modulator of intestinal epithelial-mesenchymal interactions. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2010; 96:175-206. [PMID: 21075345 DOI: 10.1016/b978-0-12-381280-3.00008-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Intestinal development is a process of continuous dynamic bidirectional crosstalk between epithelial and underlying mesenchymal cells. This crosstalk is mediated by well-dissected signaling pathways. Another crucial actor in the epithelio-mesenchymal interactions is the stromal microenvironment, which is composed of extracellular matrix molecules. Among them, the basement membrane (BM) molecules are secreted by the epithelium and mesenchyme in a complementary manner. These molecules signal back to the cells via the integrins or other specific receptors. In this review, we mainly focus on the BM molecules, particularly laminins. The major BM molecules are organized in a complex molecular network, which is highly variable among organs. Cell culture, coculture, and grafting models have been of great interest in understanding the importance of these molecules. Mouse gene ablation of laminin chains are interesting models, which often lead to embryonic death and are frequently accompanied by compensatory processes. Overall, the BM molecules have a crucial role in the careful maintenance of intestinal homeostasis.
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Chen C, Méndez E, Houck J, Fan W, Lohavanichbutr P, Doody D, Yueh B, Futran ND, Upton M, Farwell DG, Schwartz SM, Zhao LP. Gene expression profiling identifies genes predictive of oral squamous cell carcinoma. Cancer Epidemiol Biomarkers Prev 2008; 17:2152-62. [PMID: 18669583 DOI: 10.1158/1055-9965.epi-07-2893] [Citation(s) in RCA: 198] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is associated with substantial mortality and morbidity. To identify potential biomarkers for the early detection of invasive OSCC, we compared the gene expressions of incident primary OSCC, oral dysplasia, and clinically normal oral tissue from surgical patients without head and neck cancer or preneoplastic oral lesions (controls), using Affymetrix U133 2.0 Plus arrays. We identified 131 differentially expressed probe sets using a training set of 119 OSCC patients and 35 controls. Forward and stepwise logistic regression analyses identified 10 successive combinations of genes which expression differentiated OSCC from controls. The best model included LAMC2, encoding laminin-gamma2 chain, and COL4A1, encoding collagen, type IV alpha1 chain. Subsequent modeling without these two markers showed that COL1A1, encoding collagen, type I alpha1 chain, and PADI1, encoding peptidyl arginine deiminase, type 1, could also distinguish OSCC from controls. We validated these two models using an internal independent testing set of 48 invasive OSCC and 10 controls and an external testing set of 42 head and neck squamous cell carcinoma cases and 14 controls (GEO GSE6791), with sensitivity and specificity above 95%. These two models were also able to distinguish dysplasia (n = 17) from control (n = 35) tissue. Differential expression of these four genes was confirmed by quantitative reverse transcription-PCR. If confirmed in larger studies, the proposed models may hold promise for monitoring local recurrence at surgical margins and the development of second primary oral cancer in patients with OSCC.
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Affiliation(s)
- Chu Chen
- Program in Epidemiology, Fred Hutchinson Cancer Research Center, DEpartment of Epidemiology, 1100 Fairview Avenue North, M5-C800 P.O. Box 19024, Seattle, WA 98109-1024, USA.
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19
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Zboralski D, Böckmann M, Zapatka M, Hoppe S, Schöneck A, Hahn SA, Schmiegel W, Schwarte-Waldhoff I. Divergent mechanisms underlie Smad4-mediated positive regulation of the three genes encoding the basement membrane component laminin-332 (laminin-5). BMC Cancer 2008; 8:215. [PMID: 18664273 PMCID: PMC2525660 DOI: 10.1186/1471-2407-8-215] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Accepted: 07/29/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Functional inactivation of the tumor suppressor Smad4 in colorectal and pancreatic carcinogenesis occurs coincident with the transition to invasive growth. Breaking the basement membrane (BM) barrier, a prerequisite for invasive growth, can be due to tumor induced proteolytic tissue remodeling or to reduced synthesis of BM molecules by incipient tumor cells. Laminin-332 (laminin-5), a heterotrimeric BM component composed of alpha 3-, beta 3- and gamma 2-chains, has recently been identified as a target structure of Smad4 and represents the first example for expression control of an essential BM component by a tumor and invasion suppressor. Biochemically Smad4 is a transmitter of signals of the TGFbeta superfamily of cytokines. We have reported previously, that Smad4 functions as a positive transcriptional regulator of constitutive and of TGFbeta-induced transcription of all three genes encoding Laminin-332, LAMA3, LAMB3 and LAMC2. METHODS Promoter-reporter constructs harboring 4 kb upstream regions, each of the three genes encoding Laminin-322 as well as deletion and mutations constructs were established. Promoter activities and TGFbeta induction were assayed through transient transfections in Smad4-negative human cancer cells and their stable Smad4-positive derivatives. Functionally relevant binding sites were subsequently confirmed through chromatin immunoprecipitation. RESULTS Herein, we report that Smad4 mediates transcriptional regulation through three different mechanisms, namely through Smad4 binding to a functional SBE site exclusively in the LAMA3 promoter, Smad4 binding to AP1 (and Sp1) sites presumably via interaction with AP1 family components and lastly a Smad4 impact on transcription of AP1 factors. Whereas Smad4 is essential for positive regulation of all three genes, the molecular mechanisms are significantly divergent between the LAMA3 promoter as compared to the LAMB3 and LAMC2 promoters. CONCLUSION We hypothesize that this divergence in modular regulation of the three promoters may lay the ground for uncoupled regulation of Laminin-332 in Smad4-deficient tumor cells in response to stromally expressed cytokines acting on budding tumor cells.
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Affiliation(s)
- Dirk Zboralski
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
| | - Miriam Böckmann
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
| | - Marc Zapatka
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
- Department of Theoretical Bioinformatics, DKFZ, Heidelberg, Germany
| | - Sabine Hoppe
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
| | - Anna Schöneck
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
| | - Stephan A Hahn
- Department of Internal Medicine, Molecular Oncology, Ruhr-University of Bochum, Bochum, Germany
| | - Wolff Schmiegel
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
- Department of Gastroenterology and Hepatology, Kliniken Bergmannsheil, Ruhr-University of Bochum, Bochum, Germany
| | - Irmgard Schwarte-Waldhoff
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
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Tsuruta D, Kobayashi H, Imanishi H, Sugawara K, Ishii M, Jones JCR. Laminin-332-integrin interaction: a target for cancer therapy? Curr Med Chem 2008; 15:1968-75. [PMID: 18691052 PMCID: PMC2992754 DOI: 10.2174/092986708785132834] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
For many years, extracellular matrix (ECM) was considered to function as a tissue support and filler. However, we now know that ECM proteins control many cellular events through their interaction with cell-surface receptors and cytoplasmic signaling pathways. For example, they regulate cell proliferation, cell division, cell adhesion, cell migration, and apoptosis. We focus in this review on a laminin isoform, laminin-332 (formerly termed laminin-5), a major component of the basement membrane (BM) of skin and other epithelial tissues. It is composed of 3 subunits (alpha3beta3 and gamma3 and interacts with at least two integrin receptors expressed by epithelial cells (alpha3beta1 and alpha6beta4 integrin. Mutations in either laminin-332 or integrin alpha6beta4 result in junctional epidermolysis bullosa, a blistering skin disease, while targeting of laminin-332 by autoantibodies in cicatricial pemphigoid leads to dysadhesion of epithelial cells from their underlying connective tissue. Abnormal expression of laminin-332 and its integrin receptors is also a hallmark of certain tumor types and is believed to promote invasion of colon, breast and skin cancer cells. Moreover, there is emerging evidence that laminin-332 and its protease degradation products are not only found at the leading front of several tumors but also likely induce and/or promote tumor cell migration. Thus, in this review, we focus specifically on the role of laminin-332 and its integrin receptors in adhesion, proliferation, and migration/invasion of cancer cells. Finally, we discuss strategies for the development of laminin-332-based antagonists for the treatment of malignant tumors.
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Affiliation(s)
- Daisuke Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, Japan.
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Lenander C, Rubio CA. The biological relevance of laminin 5gamma2 expression at the invading edge of colonic carcinomas. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2008; 1:254-259. [PMID: 18784811 PMCID: PMC2480561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/01/2007] [Accepted: 09/20/2007] [Indexed: 05/26/2023]
Abstract
Previous studies have shown the presence of dilated neoplastic glands with cellular gaps called glandular pores (GPs) and laminin 5gamma2 expression at the invading edge of colonic carcinomas. We now extended our studies to explore a possible association between GP formation and laminin 5gamma2 expression at the invading edge of colonic carcinomas. Immunostain was performed on sections of five consecutive neoplastic glands with and without GPs from 86 colonic adenocarcinomas to assess the expression of laminin 5gamma2. Neoplastic glands with GPs were observed in 85% (73/86) of the tumors. Laminin 5gamma2 was expressed in 92% (335/365) of the neoplastic glands with GPs but only in 17% (63/365) of the neoplastic glands without GPs (p<0.05). Laminin 5gamma2 was overexpressed in the cells at the free ends of the pores in 88% of the neoplastic glands with GPs, but only in 14% of those without pores (p<0.05). Hence, at the growing edge of colonic carcinomas, laminin 5gamma2 was frequently expressed in neoplastic glands having GPs. Remarkably, the tumor cells at the free ends of the GPs overexpressed laminin 5gamma2, indicating increased production of this adhesion-migration macromolecule. The results suggest a close interaction between this adhesion-migration macromolecule, PG formation and the local progression of colonic carcinomas.
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Affiliation(s)
- Clase Lenander
- Department of Clinical Science, Intervention and Technology, Karolinska Institute and Centre of Gastrointestinal Disease, Ersta Hospital, and Pathology, Karolinska Institute and University Hospital Stockholm, Sweden
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Zapatka M, Zboralski D, Radacz Y, Böckmann M, Arnold C, Schöneck A, Hoppe S, Tannapfel A, Schmiegel W, Simon-Assmann P, Schwarte-Waldhoff I. Basement membrane component laminin-5 is a target of the tumor suppressor Smad4. Oncogene 2007; 26:1417-27. [PMID: 16953227 DOI: 10.1038/sj.onc.1209918] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Revised: 07/13/2006] [Accepted: 07/18/2006] [Indexed: 12/15/2022]
Abstract
The tumor suppressor Smad4 is involved in carcinogenesis mainly of the pancreas and colon. Functional inactivation of Smad4 is a genetically late event that occurs upon transition from premalignant stages to invasive and metastatic growth. Smad4 encodes an intracellular messenger common to all signalling cascades induced by members of the transforming growth factor-beta (TGF-beta) superfamily of cytokines. Despite extensive knowledge about the mechanisms of TGF-beta/Smad signal transduction, little is known about Smad4 targets involved in the transition to malignancy. The hallmark of invasive growth is a breakdown of the basement membrane (BM), a specialized sheet of extracellular matrix produced through cooperation of epithelial and stromal cells. Laminin-5, a heterotrimeric epithelial-derived BM component, is commonly lost in carcinomas but not in premalignant tumors. Herein, we report that in human colon and pancreatic tumor cells, Smad4 functions as a positive transcriptional regulator of all three genes encoding laminin-5. Coordinate re-expression of the three laminin-5 chains induced by reconstitution of Smad4 leads to secretion and deposition of the heterotrimeric molecule in BM-like structures. These data define the expression control of an essential BM component as a novel function for the tumor suppressor Smad4.
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Affiliation(s)
- M Zapatka
- Department of Internal Medicine, Knappschaftskrankenhaus, IMBL, Ruhr-University of Bochum, Bochum, Germany
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Goldstein M, Meller I, Issakov J, Orr-Urtreger A. Novel genes implicated in embryonal, alveolar, and pleomorphic rhabdomyosarcoma: a cytogenetic and molecular analysis of primary tumors. Neoplasia 2006; 8:332-43. [PMID: 16790082 PMCID: PMC1592451 DOI: 10.1593/neo.05829] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Rhabdomyosarcoma, the most common pediatric soft tissue sarcoma, likely results from deregulation of the skeletal myogenesis program. Although associations between PAX3, PAX7, FOXO1A, and RMS tumorigenesis are well recognized, the entire spectrum of genetic factors underlying RMS development and progression is unclear. Using a combined approach of spectral karyotyping, array-based comparative genomic hybridization (CGH), and expression analysis, we examined 10 primary RMS tumors, including embryonal, alveolar, and the rare adult pleomorphic variant, to explore the involvement of different genes and genetic pathways in RMS tumorigenesis. A complete karyotype established for each tumor revealed a high aneuploidy level, mostly tetraploidy, with double minutes and additional structural aberrations. Quantitative expression analysis detected the overexpression of the AURKA gene in all tumors tested, suggesting a role for this mitotic regulator in the aneuploidy and chromosomal instability observed in RMS. Array-based CGH analysis in primary RMS tumors detected copy number changes of genes involved in multiple genetic pathways, including transcription factors such as MYC-related gene from lung cancer and the cytoskeleton and cell adhesion-encoding genes laminin gamma-2 and p21-activated kinase-1. Our data suggest the involvement of genes encoding cell adhesion, cytoskeletal signaling, and transcriptional and cell cycle components in RMS tumorigenesis.
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Affiliation(s)
- Myriam Goldstein
- Genetic Institute, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Isaac Meller
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- The National Unit of Orthopedic Oncology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Josephine Issakov
- Pathology Institute, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Avi Orr-Urtreger
- Genetic Institute, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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24
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Ziober AF, Falls EM, Ziober BL. The extracellular matrix in oral squamous cell carcinoma: friend or foe? Head Neck 2006; 28:740-9. [PMID: 16649214 DOI: 10.1002/hed.20382] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Oral squamous cell carcinoma is a disfiguring, highly invasive and metastatic cancer. Despite advances in detection and therapy, many patients will continue to face a poor prognosis. It is well established that the predominate factor determining overall survival in patients with oral squamous cell carcinoma is lymph node involvement. Tumor growth and progression to invasive cancer requires tumor cell interactions with the extracellular matrix. An understanding of how the extracellular matrix influences tumor development and invasion is fundamental in the development of new prognostic indicators and treatment strategies for oral squamous cell carcinoma. In this review, we summarize how changes in the extracellular matrix contribute to oral cancer development.
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Affiliation(s)
- Amy F Ziober
- Department of Otorhinolaryngology-Head and Neck Surgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, 5 Ravdin Building, Philadelphia PA 19104, USA.
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Chilosi M, Zamò A, Doglioni C, Reghellin D, Lestani M, Montagna L, Pedron S, Ennas MG, Cancellieri A, Murer B, Poletti V. Migratory marker expression in fibroblast foci of idiopathic pulmonary fibrosis. Respir Res 2006; 7:95. [PMID: 16813649 PMCID: PMC1538593 DOI: 10.1186/1465-9921-7-95] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2006] [Accepted: 06/30/2006] [Indexed: 12/18/2022] Open
Abstract
Background Fibroblast foci (FF) are considered a relevant morphologic marker of idiopathic pulmonary fibrosis/usual interstitial pneumonia (IPF/UIP), and are recognised as sites where fibrotic responses are initiated and/or perpetuated in this severe disease. Despite their relevance, the cellular and molecular mechanisms responsible for the formation of FF and their role in tissue remodelling are poorly defined. In previous studies we have provided evidence of abnormal activation of the wnt-signaling-pathway in IPF/UIP that is centred on FF and the overlying epithelium. This important morphogenetic pathway is able to trigger epithelial-mesenchymal-transition (EMT), a mechanism involved in developmental and metastatic processes, which is also potentially involved in pulmonary fibrosis. Methods Since EMT is characterised by enhancement of migratory potential of cells, we investigated the molecular profile of FF in 30 biopsies of IPF/UIP and a variety of control samples, focussing on the immunohistochemical expression of three molecules involved in cell motility and invasiveness, namely laminin-5-γ2-chain, fascin, and heat-shock-protein-27. Results We provide evidence that in UIP these three molecules are abnormally expressed in discrete clusters of bronchiolar basal cells precisely localised in FF. These cellular clusters expressed laminin-5-γ2-chain and heat-shock-protein-27 at very high levels, forming characteristic three-layered lesions defined as "sandwich-foci" (SW-FF). Upon quantitative analysis SW-FF were present in 28/30 UIP samples, representing more than 50% of recognisable FF in 21/30, but were exceedingly rare in a wide variety of lung pathologies examined as controls. In UIP, SW-FF were often observed in areas of microscopic honeycombing, and were also found at the interface between normal lung tissue and areas of dense scarring. Conclusion These molecular abnormalities strongly suggest that SW-FF represent the leading edge of pulmonary remodelling, where abnormal migration and re-epithelialisation take place, and that abnormal proliferation and migration of bronchiolar basal cells have a major role in the remodelling process characterising IPF/UIP. Further investigations will assess their possible use as reliable markers for better defining the UIP-pattern in difficult cases.
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Affiliation(s)
- Marco Chilosi
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Alberto Zamò
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Claudio Doglioni
- Department of Pathology San Raffaele Hospital, Via Olgettina60, 20132 Milan, Italy
| | - Daniela Reghellin
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Maurizio Lestani
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Licia Montagna
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Serena Pedron
- Department of Pathology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy
| | - Maria Grazia Ennas
- Department of Cytomorphology, University of Cagliari, Cittadella Universitaria 09042 Monserrato, Cagliari, Italy
| | | | - Bruno Murer
- Department of Pathology, Umberto I Hospital, via Circonvallazione 50, 30173 Venice, Italy
| | - Venerino Poletti
- Department of Pneumology, G.B.Morgagni-L.Pierantoni Hospital, Via Carlo Forlanini 34, 47100 Forlì, Italy
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Ma J, Gao M, Lu Y, Feng X, Zhang J, Lin D, Xiao T, Hu Z, Yuan J, Su K, Shipley J, Xue J, Gao Y. Gain of 1q25–32, 12q23–24.3, and 17q12–22 facilitates tumorigenesis and progression of human squamous cell lung cancer. J Pathol 2006; 210:205-13. [PMID: 16927450 DOI: 10.1002/path.2050] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
To explore the genetic changes involved in the stepwise development of lung cancer, we have determined the genetic events associated with the histological progression from normal bronchial epithelium to squamous cell carcinoma. Comparative genomic hybridization was used to identify chromosomal imbalances in 54 microdissected samples, including squamous metaplasia, dysplasia, carcinoma in situ, and invasive tumour derived from 23 patients with squamous cell carcinoma of the lung. Histopathological progression was accompanied by an increased number of chromosomal abnormalities. Gains of 1q25-32, 12q23-24.3, and 17q12-22, in particular, were detected at high frequencies in both carcinoma in situ and invasive tumours and were found more often in the cases with lymph node metastases than in those without. Our previous expression profiling of squamous cell carcinomas had identified overexpression of laminin5 gamma2, a gene located at 1q25-31. Therefore, this was investigated at the protein level by immunohistochemical analysis in 336 samples of squamous cell carcinoma of the lung. Consistent with the genomic data for this region, the expression level of laminin5 gamma2 was higher in the primary tumours with lymph node metastases than in tumours without metastases (p = 0.012). These data suggest that gains of genes from 1q25-32, 12q23-24.3, and 17q12-22 facilitate tumorigenesis and progression of squamous cell carcinoma of the lung, and may serve as potential predictors for this disease.
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MESH Headings
- Aged
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/pathology
- Carcinoma, Squamous Cell/secondary
- Cell Transformation, Neoplastic/genetics
- Chromosome Aberrations
- Chromosomes, Human, Pair 1/genetics
- Chromosomes, Human, Pair 12/genetics
- Chromosomes, Human, Pair 17/genetics
- Disease Progression
- Female
- Humans
- Laminin/metabolism
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lymphatic Metastasis
- Male
- Microdissection/methods
- Middle Aged
- Neoplasm Proteins/metabolism
- Neoplasm Staging
- Nucleic Acid Hybridization
- Precancerous Conditions/genetics
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Affiliation(s)
- J Ma
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, Shanghai, Peoples Republic of China
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Amano S, Akutsu N, Ogura Y, Nishiyama T. Increase of laminin 5 synthesis in human keratinocytes by acute wound fluid, inflammatory cytokines and growth factors, and lysophospholipids. Br J Dermatol 2004; 151:961-70. [PMID: 15541073 DOI: 10.1111/j.1365-2133.2004.06175.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Laminin 5 is known to induce the adhesion, spreading and migration of human keratinocytes. In skin wound healing, laminin 5 deposition beneath migrating keratinocytes occurs early and is followed by the formation of hemidesmosomes and then basement membrane. OBJECTIVES To identify factors that regulate the synthesis and secretion of laminin 5 by human keratinocytes during acute wound healing. METHODS Laminin 5 synthesis by human keratinocytes was determined by a specific sandwich enzyme-linked immunosorbent assay. To determine the total amount of laminin 5 synthesized, laminin 5 deposited on culture dishes and inside cells was solubilized by detergent solution and determined separately from conditioned medium, and the total laminin 5 synthesis was calculated. A quantitative polymerase chain reaction method was used to measure the expression levels of laminin 5 genes, LAMA3, LAMB3 and LAMC2, which correspond to the alpha3, beta3 and gamma2 chains of laminin 5. We also examined the effects of lysophospholipids, proinflammatory cytokines and growth factors, which are components in acute wound fluids, on laminin 5 synthesis in keratinocytes. RESULTS Human acute wound fluid at days 1, 2 and 3 stimulated laminin 5 synthesis in cultured human keratinocytes in a concentration-dependent manner, although findings are restricted to one case. Human serum also increased laminin 5 production by human keratinocytes as strongly as the wound fluid did, suggesting that the major active components in acute wound fluid may be derived from those in human serum. Lysophospholipids such as lysophosphatidic acid (LPA), lysophosphatidylcholines (LPCs) and sphingosine-1-phosphate (S1P) increased laminin 5 synthesis in a concentration-dependent manner. Among growth factors, epidermal growth factor, insulin-like growth factor-1, interferon-gamma and keratinocyte growth factor increased laminin 5 production in keratinocytes, while platelet-derived growth factor, hepatocyte growth factor and basic fibroblast growth factor were ineffective. Although interleukin-1alpha had no effect, transforming growth factor (TGF)-alpha, tumour necrosis factor (TNF)-alpha and TGF-beta1 also stimulated laminin 5 synthesis, and TGF-alpha and TGF-beta1 showed a synergistic effect. Neutralizing antibodies to TGF-alpha and TGF-beta1 markedly inhibited the enhanced laminin 5 synthesis by human serum, suggesting that TGF-alpha and TGF-beta1 are important components to increase laminin 5 in human serum. In line with the increase of laminin 5 synthesis, the expression levels of all three laminin 5 genes were also augmented by TGF-alpha and TGF-beta1. CONCLUSIONS Laminin 5 synthesis in human keratinocytes was augmented by inflammatory cytokines and growth factors such as TGF-alpha, TGF-beta1 and TNF-alpha, and lysophospholipids such as S1P, LPA and LPCs, which are supposed to be present in acute wound fluid. The increased laminin 5 protein in the wound area presumably enhances wound repair by stimulating adhesion and migration of keratinocytes on the wound bed and by facilitating basement membrane formation at the dermal-epidermal junction.
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Affiliation(s)
- S Amano
- Skin Biology Research Laboratories, Shiseido Life Science Research Center, 2-12-1 Fukuura, Kanazawa-ku, Yokohama 236-8643, Japan.
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Sosne G, Xu L, Prach L, Mrock LK, Kleinman HK, Letterio JJ, Hazlett LD, Kurpakus-Wheater M. Thymosin beta 4 stimulates laminin-5 production independent of TGF-beta. Exp Cell Res 2004; 293:175-83. [PMID: 14729067 DOI: 10.1016/j.yexcr.2003.09.022] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thymosin beta 4 (Tbeta(4)) stimulates epithelial cell migration and promotes laminin-5 (LM-5) expression. Using gene expression analysis with human corneal epithelial cells treated with Tbeta(4), we find that both LM-5 gamma2 chain and transforming growth factor beta 1 (TGFbeta-1) are increased by more than 2-fold over untreated cells. These findings were confirmed by RT-PCR and at the protein level. Although TGFbeta-1 increases LM-5 synthesis in a dose-dependent manner, it does not appear to be the mechanism by which Tbeta(4) acts on LM-5 gamma2 chain synthesis based on three independent experiments. In a time-course analysis, Tbeta(4) increases LM-5 gamma2 chain expression at 2 h and peaks at 6 h, while TGFbeta-1 increases LM-5 gamma2 chain expression only at 4 h and peaks at 8 h. When Tbeta(4)-induced LM-5 gamma2 chain expression is blocked with neutralizing antibodies to TGFbeta-1, LM-5 gamma2 chain expression is increased. Finally, in TGFbeta-1 knock-out mice, Tbeta(4) increases LM-5 gamma2 chain expression to levels higher than that observed in wild-type mice treated with Tbeta(4). These findings demonstrate that Tbeta(4) induces both TGFbeta-1 and LM-5 gamma2 chain expression in corneal epithelial cells. Tbeta(4) and TGFbeta-1 increase LM-5 gamma2 chain expression by independent pathways. Suppression of TGFbeta-1 further increases LM-5 gamma2 chain expression.
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Affiliation(s)
- Gabriel Sosne
- Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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Capt A, Spirito F, Guyon R, André C, Ortonne JP, Meneguzzi G. Cloning of laminin gamma2 cDNA and chromosome mapping of the genes for the dog adhesion ligand laminin 5. Biochem Biophys Res Commun 2003; 312:1256-65. [PMID: 14652009 DOI: 10.1016/j.bbrc.2003.11.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Overexpression of the gamma2 chain of laminin-5 has been linked to tumor invasion and an unfavorable prognostic value, but the role of this adhesion molecule in cancer progression remains unclear. Because dog models of human cancers provide the opportunity of clarifying the relation between laminin-5 and tumor malignancy we have isolated and characterized the cDNA of dog gamma2 chain. Comparative analysis of the nucleotide sequence revealed high identity between the dog and the human gamma2, including the intermolecular molecule binding sites and the regulatory promoter sequences. Moreover, expression of a recombinant human gamma2 chain in dog keratinocytes results in assembly and secretion of hybrid laminin-5 molecules, which underscore the functional relevance of the gamma2 conserved domains. We have also determined the syntenic location of the dog laminin-5 loci on CFA7. Our study provides a basis for therapeutical approaches of epithelial cancers of gamma2 using dogs as large animal models.
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Piccinni SA, Bolcato-Bellemin AL, Klein A, Yang VW, Kedinger M, Simon-Assmann P, Lefebvre O. Kruppel-like factors regulate the Lama1 gene encoding the laminin alpha1 chain. J Biol Chem 2003; 279:9103-14. [PMID: 14634001 PMCID: PMC2225534 DOI: 10.1074/jbc.m305804200] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Laminin-1 (alpha1beta1gamma1), a basement membrane (BM) constituent, has been associated with differentiation processes and also with malignant progression. In the intestinal tissue, the alpha1 chain is expressed and secreted in the subepithelial BM during the developmental period; in the adult rodent tissue, it is restricted to the BM of the dividing cells. To understand how laminin alpha1 chain expression is regulated, we cloned and characterized a 2-kb promoter region of the Lama1 mouse gene. Analysis of the promoter was conducted in the Caco2-TC7 intestinal epithelial cells by transient transfection of serially deleted and site-directed mutated promoter constructs, by electrophoretic mobility shift assays, and expression of selected transcription factors. We determined that a proximal region, which includes an Sp1-binding GC box and a Krüppel-like element, was important for the promoter activity. This region is conserved between the human and mouse genes. Interestingly, two Krüppel-like factors KLF4 and KLF5 exhibit opposing effects on the Lama1 promoter activity that are decreased and increased, respectively, in the intestinal epithelial cells. These data corroborate the complementary expression of KLF4 and KLF5 along the intestinal crypt-villus axis and the parallel expression of KLF5 and laminin alpha1 chain in the crypt region. Finally, we showed that glucocorticoids stimulate the promoter activity. This study is the first characterization of the Lama1 promoter; we identified regulatory elements that may account for the expression pattern of the endogenous protein in the mouse intestine.
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Affiliation(s)
| | | | | | | | | | | | - Olivier Lefebvre
- To whom correspondence should be addressed: INSERM-Unité 381, 3, Ave. Molière, 67 200 Strasbourg, France. Tel.: 33−3−88−27−77−27; Fax: 33−3−88−26−35−38; E-mail: .
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