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A Novel Bioassay for the Activity Determination of Therapeutic Human Brain Natriuretic Peptide (BNP).

PLoS One.. 2012-11;  7(11):e49934
Yu L, Rao C, Shi X, Li Y, Gao K, Li X, Wang J. National Institute for the Control of Pharmaceutical and Biological Products, Beijing, China
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摘要

BACKGROUND: Recombinant human brain natriuretic peptide (rhBNP) is an important peptide-based therapeutic drug indicated for the treatment of acute heart failure. Accurate determination of the potency of therapeutic rhBNP is crucial for the safety and efficacy of the drug. The current bioassay involves use of rabbit aortic strips, with experiments being complicated and time-consuming and markedly variable in results. Animal-less methods with better precision and accuracy should be explored. We have therefore developed an alternative cell-based assay, which relies on the ability of BNP to induce cGMP production in HEK293 cells expressing BNP receptor guanylyl cyclase-A. METHODOLOGY/PRINCIPAL FINDINGS: An alte... More

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