title: 20 alpha-hydroxysteroid dehydrogenase expression in hemopoietic cell cultures and its relationship to interleukin 3.
abstract: Expression of 20 alpha-hydroxysteroid dehydrogenase (20 alpha-SDH) has been investigated in long-term bone marrow cultures derived from normal and nude mice in the presence of horse serum and hydrocortisone. 20 alpha-SDH expression rises markedly in the adherent cells derived from normal bone marrow. Early (1-5 days) lipid profiles are similar to those seen in T cells, but at later times (6-14 days) stromal-type lipid patterns dominate. Similar culture of fetal liver and nu/nu bone marrow cells shows rises in 20 alpha-SDH expression, in situations where T cells are notably absent. The expression of 20 alpha-SDH is not associated with detectable endogenous production of "interleukin 3" activity, and although addition of "IL 3" to bone marrow cultures increases the levels of 20 alpha-SDH, this is associated with granulopoiesis rather than lymphoid development.
mesh_terms: D015089:20-Hydroxysteroid Dehydrogenases / Q000378:metabolism*; D000818:Animals; D001853:Bone Marrow / Q000378:metabolism*; D002478:Cells, Cultured; D005333:Fetus / Q000201:enzymology; D006098:Granulocytes / Q000378:metabolism; D006412:Hematopoietic Stem Cells / Q000378:metabolism; D007377:Interleukin-3; D008099:Liver / Q000201:enzymology; D008222:Lymphokines / Q000096:biosynthesis*; D051379:Mice; D008819:Mice, Nude; D013154:Spleen / Q000378:metabolism; D013601:T-Lymphocytes / Q000378:metabolism
chemical_list: D007377:Interleukin-3; D008222:Lymphokines; D015089:20-Hydroxysteroid Dehydrogenases