Accession Number : ADA329004

Title :   Carbohydrate Mimicking Peptides as Inhibitors of Angiogenesis and Metastasis

Descriptive Note : Annual rept. 1 Jun 96-31 May 97

Corporate Author : WISTAR INST OF ANATOMY AND BIOLOGY PHILADELPHIA PA

Personal Author(s) : Blaszczyk-Thurin, Magdalena

PDF Url : ADA329004

Report Date : JUL 1997

Pagination or Media Count : 11

Abstract : E-selectin is an inducible cell adhesion molecule which mediates rolling of neutrophils as well as adhesion of carcinoma cells to endothelium. Inhibition of selectin-mediated interaction is a possible means for controlling inflammation induced diseases and metastatic spread. The purpose of these studies is to identify peptide forms mimicking Lewis X (LeX), sialyl-Lewis X (SA-LeX), sialyl-Lea (SA-Lea), and Lewis Y (LeY) carbohydrate structures to disrupt lectin-ligand interactions and evaluate their properties to block adenocarcinoma cell adhesion to endothelial cells and tumor metastasis in vitro and in vivo. We used recombinant peptide library to identify novel ligands for E-selectin. We have identified five dodeca peptides mimicking SA-Lea carbohydrate, which is one of the E-selectin ligands, via means of random peptide library screening using SA-Lea-specific monoclonal antibody (MAb) NS 19-9. Peptides with the highest binding affinity for the MAb will be synthesized and characterized for its anti-metastatic activity using JC murine breast and H-59 lung carcinoma cells in metastatic model in vivo.

Descriptors :   *PEPTIDES, *INHIBITORS, *CARBOHYDRATES, *METASTASIS, *BREAST CANCER, MOLECULES, ADHESION, NEOPLASMS, IN VITRO ANALYSIS, LIGANDS, MOLECULAR STRUCTURE, MONOCLONAL ANTIBODIES, IN VIVO ANALYSIS, CELLS(BIOLOGY), BLOOD VESSELS, MAMMARY GLANDS, ENDOTHELIUM.

Subject Categories : Biochemistry
      Anatomy and Physiology
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE