Article (Scientific journals)
Laminin receptor complementary DNA-deduced synthetic peptide inhibits cancer cell attachment to endothelium.
Castronovo, Vincenzo; Taraboletti, G.; Sobel, M. E.
1991In Cancer Research, 51 (20), p. 5672-8
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Keywords :
Amino Acid Sequence; Cell Adhesion/physiology; Endothelium, Vascular/physiopathology; Humans; Laminin/genetics/metabolism/physiology; Melanoma/physiopathology; Molecular Sequence Data; Neoplasm Metastasis; Receptors, Immunologic/genetics/metabolism/physiology; Receptors, Laminin; Tumor Cells, Cultured
Abstract :
[en] Stable attachment of cancer cells to the endothelium is a key step in the formation of metastasis. In this study, we have investigated the possibility that interaction between laminin and its Mr 67,000 high-affinity receptor (67 LR) could play a major role in this process. Scatchard analysis of laminin-binding studies showed that bovine aortic endothelial cells exhibit 46,000 high-affinity receptors that mediate, at least in part, the attachment of highly invasive melanoma cells. This endothelial cell-melanoma cell interaction was significantly inhibited by soluble laminin and by anti-laminin antibodies. Peptide G, an eicosapeptide derived from the complementary DNA sequence of the 67 LR precursor (IPCNNKGAHSVGLMWWMLAR) that specifically binds to laminin and presumably contains the active ligand-binding site of the receptor, specifically prevented attachment of the melanoma cells to both the bovine aortic endothelial cell monolayer and human umbilical vein endothelium. Thus, peptide G may selectively interfere with the metastatic cascade by inhibiting tumor cell attachment to endothelium via the laminin-67 LR pathway and is a potential new antimetastatic agent.
Disciplines :
Oncology
Biochemistry, biophysics & molecular biology
Author, co-author :
Castronovo, Vincenzo ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire - GIGA-R : Labo de recherche sur les métastases
Taraboletti, G.
Sobel, M. E.
Language :
English
Title :
Laminin receptor complementary DNA-deduced synthetic peptide inhibits cancer cell attachment to endothelium.
Publication date :
1991
Journal title :
Cancer Research
ISSN :
0008-5472
eISSN :
1538-7445
Publisher :
American Association for Cancer Research, Inc. (AACR), Baltimore, United States - Maryland
Volume :
51
Issue :
20
Pages :
5672-8
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 May 2010

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