TY - JOUR
T1 - Stereospecific tissue uptake and nuclear accumulation of testosterone in the development of the mouse erythropoietic spleen
AU - Hadjian, A. J.
AU - Spivak, J. L.
AU - Kowarski, A.
PY - 1976
Y1 - 1976
N2 - A double isotope ratio technique was used to estimate the specific binding of testosterone (T), as opposed to its biologically nonactive stereoisomer, epitestosterone (EpiT). The mouse erythropoietic spleen formed in response to a phenylhydrazine induced hemolytic anemia was used as the target organ. Spleen minces from preanemic mice, as well as those in the early and late phases of erythropoietic spleen development, were incubated with 10-9 M of 14C T and 3H EpiT, and the selective uptake of T was calculated from the 14C/3H ratio measured in the media before and after incubation, as well as in the subcellular fractions of the minces. Preferential uptake of T was seen in the early phase of development, but not in spleens obtained from preanemic animals or those in the late phase. There was no evidence of metabolic conversion of T or EpiT. The selective uptake of T by early phase spleens was reflected in a preferential nuclear accumulation of T. These data represent the first demonstration of a specific binding of T in vitro to a developing erythroid tissue.
AB - A double isotope ratio technique was used to estimate the specific binding of testosterone (T), as opposed to its biologically nonactive stereoisomer, epitestosterone (EpiT). The mouse erythropoietic spleen formed in response to a phenylhydrazine induced hemolytic anemia was used as the target organ. Spleen minces from preanemic mice, as well as those in the early and late phases of erythropoietic spleen development, were incubated with 10-9 M of 14C T and 3H EpiT, and the selective uptake of T was calculated from the 14C/3H ratio measured in the media before and after incubation, as well as in the subcellular fractions of the minces. Preferential uptake of T was seen in the early phase of development, but not in spleens obtained from preanemic animals or those in the late phase. There was no evidence of metabolic conversion of T or EpiT. The selective uptake of T by early phase spleens was reflected in a preferential nuclear accumulation of T. These data represent the first demonstration of a specific binding of T in vitro to a developing erythroid tissue.
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U2 - 10.1182/blood.v47.4.571.bloodjournal474571
DO - 10.1182/blood.v47.4.571.bloodjournal474571
M3 - Article
C2 - 1260121
AN - SCOPUS:0017106667
SN - 0006-4971
VL - 47
SP - 571
EP - 580
JO - Blood
JF - Blood
IS - 4
ER -