Elsevier

Life Sciences

Volume 52, Issue 1, 1993, Pages 107-118
Life Sciences

Distribution profile and properties of peripheral-type benzodiazepine receptors on human hemopoietic cells

https://doi.org/10.1016/0024-3205(93)90293-CGet rights and content

Abstract

The cellular localization of peripheral-type benzodiazepine receptors (PBRs) was characterized in several human blood cell subpopulations including erythrocytes, platelets, monocytes and polymorphonuclear neutrophils (PMN), B, NK, T8 and T4-cells. Pharmacological properties of the PBR were established by binding studies and PBR mRNA expression was measured by quantitative polymerase chain reaction based method. These data clearly indicate 1) the PBR is pharmacologically homogeneous in the various types of blood cells, 2) the rank order of PBR cell density is monocytes = PMN > lymphocytes ⪢ platelets > erythrocytes, 3) the PBR appears to be transcriptionally regulated since mRNA levels are roughly correlated with PBR density.

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