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Development of a CA125-mesothelin cell adhesion assay as a screening tool for biologics discovery.


ABSTRACT: Preventing peritoneal implantation of ovarian carcinoma cells could prolong patient remission and survival. CA125 is expressed on most ovarian cancer cells and was reported to be a ligand of mesothelin, a peritoneal protein. We developed a cell adhesion assay with CA125-expresser ovarian cancer cells and human mesothelin-transfected cells and we confirmed that CA125 and mesothelin mediate cell attachment. We also showed that this assay supplies a high-throughput screening system for reagents able to block CA125/mesothelin-dependent cell attachment with a sensitive quantitative readout. We finally demonstrated that a mesothelin chimeric protein and anti-CA125 antibodies block CA125/mesothelin-dependent cell attachment.

SUBMITTER: Scholler N 

PROVIDER: S-EPMC2734268 | biostudies-literature | 2007 Mar

REPOSITORIES: biostudies-literature

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Development of a CA125-mesothelin cell adhesion assay as a screening tool for biologics discovery.

Scholler Nathalie N   Garvik Barbara B   Hayden-Ledbetter Martha M   Kline Toni T   Urban Nicole N  

Cancer letters 20060504 1


Preventing peritoneal implantation of ovarian carcinoma cells could prolong patient remission and survival. CA125 is expressed on most ovarian cancer cells and was reported to be a ligand of mesothelin, a peritoneal protein. We developed a cell adhesion assay with CA125-expresser ovarian cancer cells and human mesothelin-transfected cells and we confirmed that CA125 and mesothelin mediate cell attachment. We also showed that this assay supplies a high-throughput screening system for reagents abl  ...[more]

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