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J Histochem Cytochem. 2001 Nov;49(11):1379-85.

Detection of the Mr 110,000 lung resistance-related protein LRP/MVP with monoclonal antibodies.

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1
Department of Pathology, Academic Hospital Vrije Universiteit, Amsterdam, The Netherlands.

Abstract

The Mr 110,000 lung resistance-related protein (LRP), also termed the major vault protein (MVP), constitutes >70% of subcellular ribonucleoprotein particles called vaults. Overexpression of LRP/MVP and vaults has been linked directly to MDR in cancer cells. Clinically, LRP/MVP expression can be of value to predict response to chemotherapy and prognosis. Monoclonal antibodies (MAbs) against LRP/MVP have played a critical role in determining the relevance of this protein in clinical drug resistance. We compared the applicability of the previously described MAbs LRP-56, LMR-5, LRP, 1027, 1032, and newly isolated MAbs MVP-9, MVP-16, MVP-18, and MVP-37 for the immunodetection of LRP/MVP by immunoblotting analysis and by immunocyto- and histochemistry. The availability of a broader panel of reagents for the specific and sensitive immunodetection of LRP/MVP should greatly facilitate biological and clinical studies of vault-related MDR.

PMID:
11668191
DOI:
10.1177/002215540104901106
[Indexed for MEDLINE]
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