Multidrug-resistance gene (P-glycoprotein) is expressed by endothelial cells at blood-brain barrier sites Journal Article


Authors: Cordon-Cardo, C.; O'Brien, J. P.; Casals, D.; Rittman-Grauer, L.; Biedler, J. L.; Melamed, M. R.; Bertino, J. R.
Article Title: Multidrug-resistance gene (P-glycoprotein) is expressed by endothelial cells at blood-brain barrier sites
Abstract: Endothelial cells of human capillary blood vessels at the blood-brain and other blood-tissue barrier sites express P-glycoprotein as detected by mouse monoclonal antibodies against the human multidrug-resistance gene product. This pattern of endothelial cell expression may indicate a physiological role for P-glycoprotein in regulating the entry of certain molecules into the central nervous system and other anatomic compartments, such as the testes. These tissues, which limit the access of systemic drugs, are known pharmacologic sanctuaries for metastatic cancer. P-glycoprotein expression in capillary endothelium of brain and testes and not other tissues (i.e., kidney and placenta) may in part explain this phenomenon and could have important implications in cancer chemotherapy.
Keywords: human cell; antineoplastic agent; capillary; kidney; brain; blood brain barrier; blood vessel; endothelium; testis; glycoprotein; placenta; cancer; human; priority journal
Journal Title: Proceedings of the National Academy of Sciences of the United States of America
Volume: 86
Issue: 2
ISSN: 0027-8424
Publisher: National Academy of Sciences  
Date Published: 1989-01-01
Start Page: 695
End Page: 698
Language: English
DOI: 10.1073/pnas.86.2.695
PUBMED: 2563168
PROVIDER: scopus
PMCID: PMC286540
DOI/URL:
Notes: Article -- Export Date: 14 April 2020 -- Source: Scopus
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  1. James O'Brien
    28 O'Brien
  2. Joseph Bertino
    363 Bertino
  3. June   Biedler
    83 Biedler
  4. Myron Melamed
    148 Melamed