Antibodies blocking adhesion and matrix binding domains of laminin‐332 inhibit tumor growth and metastasis in vivo

Laminin‐332 (LN‐332), which is essential for epithelial cell adhesion and migration, is up‐regulated in most invasive carcinomas. Association between LN‐332 and carcinoma cell integrins and stroma collagen is thought to be important for tumor growth and metastasis. Here, we show that function blocki...

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Veröffentlicht in:International journal of cancer 2009-10, Vol.125 (8), p.1814-1825
Hauptverfasser: Salo, Sirpa, Boutaud, Ariel, Hansen, Anker Jon, He, Liqun, Sun, Yi, Morales, Sylvia, Venturini, Amy, Martin, Paula, Nokelainen, Pasi, Betsholtz, Christer, Mathiasen, Ida Stenfeldt, Tryggvason, Karl
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container_end_page 1825
container_issue 8
container_start_page 1814
container_title International journal of cancer
container_volume 125
creator Salo, Sirpa
Boutaud, Ariel
Hansen, Anker Jon
He, Liqun
Sun, Yi
Morales, Sylvia
Venturini, Amy
Martin, Paula
Nokelainen, Pasi
Betsholtz, Christer
Mathiasen, Ida Stenfeldt
Tryggvason, Karl
description Laminin‐332 (LN‐332), which is essential for epithelial cell adhesion and migration, is up‐regulated in most invasive carcinomas. Association between LN‐332 and carcinoma cell integrins and stroma collagen is thought to be important for tumor growth and metastasis. Here, we show that function blocking LN‐332 antibodies interfering with cellular adhesion and migration in vitro evoke apoptotic pathways. The antibodies also target epithelial tumors in vivo. Antibodies against the cell binding domain of the α3 chain of LN‐332 inhibited tumor growth by up to 68%, and antibodies against the matrix binding domains of the β3 and γ2 chains significantly decreased lung metastases. The LN‐332 antibodies appear to induce tumor cell anoikis and subsequent programmed cell death and reduce migration by interfering with tumor cell matrix interactions. © 2009 UICC
doi_str_mv 10.1002/ijc.24532
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Association between LN‐332 and carcinoma cell integrins and stroma collagen is thought to be important for tumor growth and metastasis. Here, we show that function blocking LN‐332 antibodies interfering with cellular adhesion and migration in vitro evoke apoptotic pathways. The antibodies also target epithelial tumors in vivo. Antibodies against the cell binding domain of the α3 chain of LN‐332 inhibited tumor growth by up to 68%, and antibodies against the matrix binding domains of the β3 and γ2 chains significantly decreased lung metastases. The LN‐332 antibodies appear to induce tumor cell anoikis and subsequent programmed cell death and reduce migration by interfering with tumor cell matrix interactions. © 2009 UICC</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>19582877</pmid><doi>10.1002/ijc.24532</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record>
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subjects Adenocarcinoma - immunology
Adenocarcinoma - pathology
Animals
Antibodies, Blocking - therapeutic use
Antibodies, Monoclonal - therapeutic use
Antineoplastic agents
basement membranes
Biological and medical sciences
Carcinoma, Squamous Cell - immunology
Carcinoma, Squamous Cell - pathology
Cell Adhesion - drug effects
Cell Adhesion Molecules - immunology
Cell Movement
Cell Proliferation
Extracellular Matrix - metabolism
Female
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Humans
Immunotherapy
Kalinin
laminin
Lung Neoplasms - immunology
Lung Neoplasms - pathology
Male
Medical sciences
Medicin och hälsovetenskap
metastasis
Mice
Mice, Inbred DBA
Mice, Nude
Multiple tumors. Solid tumors. Tumors in childhood (general aspects)
Oligonucleotide Array Sequence Analysis
Pharmacology. Drug treatments
Tumor Cells, Cultured
Tumors
title Antibodies blocking adhesion and matrix binding domains of laminin‐332 inhibit tumor growth and metastasis in vivo
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