The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
Frequent expression of the multi‐drug resistance‐associated protein BCRP/MXR/ABCP/ABCG2 in human tumours detected by the BXP‐21 monoclonal antibody in paraffin‐embedded material
Abstract
Breast cancer resistance protein (BCRP/MXR/ABCP/ABCG2; hereafter ABCG2) is a member of the ATP‐binding‐cassette family of transporters that causes multi‐drug resistance to various anticancer drugs. The expression of ABCG2 in human tumours and its potential involvement in clinical drug resistance are unknown. Recently, two monoclonal antibodies against human ABCG2 were produced, BXP‐34 and BXP‐21. This study describes an immunohistochemical method using BXP‐21 to study ABCG2 expression in formalin‐fixed, paraffin‐embedded tissues. No staining was seen using BXP‐34 with the same protocols. The expression of ABCG2 was then investigated in a panel of 150 untreated human solid tumours comprising 21 tumour types. Overall, ABCG2 expression was frequent. Specificity of immunohistochemistry was confirmed by the detection of a 72 kD band in western blotting. ABCG2 expression was seen in all tumour types, but it seemed more frequent in adenocarcinomas of the digestive tract, endometrium, and lung, and melanoma. Positive tumours showed membranous and cytoplasmic staining. In certain adenocarcinomas, prominent membranous staining was seen. Endothelial cells frequently displayed moderate to strong staining. ABCG2 is widely present in untreated human solid tumours and may represent a clinically relevant mechanism of drug resistance. Future studies in specific tumour types are needed to ascertain its clinical relevance. BXP‐21 and the immunohistochemical protocol described here will be of value in these investigations. Copyright © 2002 John Wiley & Sons, Ltd.
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Cited by
Multidrug resistance mediated by the breast cancer resistance protein BCRP (ABCG2)
Austin Doyle, L., & Ross, D. D. (2003) · Oncogene · doi:10.1038/sj.onc.1206938 · Cited by 1,051
The Role of ABC Transporters in Clinical Practice
Leonard, G. D., Fojo, T., & Bates, S. E. (2003) · The Oncologist · doi:10.1634/theoncologist.8-5-411 · Cited by 817
ABC Transporters in Multidrug Resistance and Pharmacokinetics, and Strategies for Drug Development
Choi, Y., & Yu, A.-M. (2014) · Current Pharmaceutical Design · doi:10.2174/138161282005140214165212 · Cited by 629
An overview of cancer multidrug resistance: a still unsolved problem
Lage, H. (2008) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-008-8111-5 · Cited by 408
Role of the breast cancer resistance protein (ABCG2) in drug transport
Mao, Q. (2005) · The AAPS Journal · doi:10.1208/aapsj070112 · Cited by 405
Metadata
- Authors
- Diestra, J. E., Scheffer, G. L., Català, I., Maliepaard, M., Schellens, J. H. M., Scheper, R. J., Germà‐Lluch, J. R., & Izquierdo, M. A.
- Venue
- The Journal of Pathology
- Publisher
- Wiley
- Published
- 2002-09-17
- Volume
- 198
- Issue
- 2
- Pages
- 213-219
- ISSN
- 0022-3417 (ISSN-L)
- 1096-9896
- OpenAlex
- W1993494709
- Cited by
- 275
- References
- 20
- FWCI
- 4.52
- Type
- journal article
- Language
- en
- Open access
- closed
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- Diestra, J. E., Scheffer, G. L., Català, I., Maliepaard, M., Schellens, J. H. M., Scheper, R. J., Germà‐Lluch, J. R., & Izquierdo, M. A. (2002). Frequent expression of the multi‐drug resistance‐associated protein BCRP/MXR/ABCP/ABCG2 in human tumours detected by the BXP‐21 monoclonal antibody in paraffin‐embedded material. The Journal of Pathology. https://doi.org/10.1002/path.1203
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