Development and in vitro validation of anti-mesothelin biobodies that prevent CA125/mesothelin-dependent cell attachment

被引：59

作者：

Bergan, Lindsay ^{[1
]}

Gross, Jennifer A. ^{[1
]}

Nevin, Barry ^{[1
]}

Urban, Nicole ^{[1
]}

Scholler, Nathalie ^{[1
]}

机构：

[1] Fred Hutchinson Canc Res Ctr, Mol Diagnost Progarm, Seattle, WA 98109 USA

来源：

CANCER LETTERS | 2007年 / 255卷 / 02期

关键词：

mesothelin; CA125; biobody; tumor cell attachment; ovarian cancer; peritoneal metastasis;

D O I：

10.1016/j.canlet.2007.04.012

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Preventing peritoneal implantation of carcinoma cells could prolong ovarian cancer patient remission and survival. Peritoneal cells constitutively express mesothelin, a ligand for CA 125 that is expressed by tumor cells. Thus blocking CA 125/ mesothelin-dependent cell attachment may prevent or delay peritoneal metastatic recurrence. We developed a high-throughput screening system for reagents able to block CA125/mesothelin-dependent cell attachment with a sensitive quantitative readout. Using a novel yeast-expression system to produce secreted, in vivo biotinylated proteins and biobodies (Bbs), we generated anti-mesothelin Bbs. Anti-mesothelin Bbs derived from high affinity yeast-display scFv detected both membrane-bound and soluble mesothelins and inhibited CA125/mesothelin-dependent cell attachment. Published by Elsevier Ireland Ltd.

引用

页码：263 / 274

页数：12

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