Distribution profile and properties of peripheral-type benzodiazepine receptors on human hemopoietic cells.
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.
Sanofi Recherche, Immunopharmacology Department, Montpellier, France.
X
X
Canat
P
P
Carayon
M
M
Bouaboula
D
D
Cahard
D
D
Shire
C
C
Roque
G
G
Le Fur
P
P
Casellas
D000911:Antibodies, Monoclonal; D001483:Base Sequence; D001773:Blood Cells / Q000378:metabolism*; D015139:Blotting, Southern; D002250:Carbon Radioisotopes; D002460:Cell Line; D006412:Hematopoietic Stem Cells / Q000378:metabolism*; D006801:Humans; D007546:Isoquinolines / Q000378:metabolism*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000032:analysis; D011869:Radioligand Assay; D011963:Receptors, GABA-A / Q000378:metabolism*
D000911:Antibodies, Monoclonal; D002250:Carbon Radioisotopes; D007546:Isoquinolines; D012333:RNA, Messenger; D011963:Receptors, GABA-A; C037850:PK 11195