PMID- 6667315 OWN - NLM STAT- MEDLINE DCOM- 19840406 LR - 20131121 IS - 0037-8771 (Print) IS - 0037-8771 (Linking) VI - 59 IP - 11 DP - 1983 Nov 30 TI - [Inhibition of heme biosynthesis in erythroid precursors (BFU-e) isolated from human peripheral blood: effects on globin synthesis]. PG - 1732-8 AB - We studied the relationship between heme accumulation and globin synthesis in human erythroid precursors which were stimulated by 2 I.U. of erythropoietin in semi-solid cultures (1% methyl-cellulose, 20% fetal calf serum) and treated with 6-9 micrograms/ml of desferrioxamina (DF), a potent inhibitor of heme synthesis (6). Heme accumulation was detected by specific reaction with benzidine (4), globin synthesis by CM-cellulose column chromatography. Our results demonstrate that globin gene expression occurs in DF-treated erythroid cells which do not accumulate heme molecules. As heme does affect translation and stability of globin mRNA (10) our system might be suitable for studies focused on pathological alterations of erythropoiesis associated with the presence of unstable globin mRNAs and/or unstable globins. FAU - Barbieri, R AU - Barbieri R FAU - Bernardi, F AU - Bernardi F FAU - Buzzoni, D AU - Buzzoni D FAU - Del Senno, L AU - Del Senno L FAU - Gambari, R AU - Gambari R FAU - Marchetti, G AU - Marchetti G FAU - Perrotta, C M AU - Perrotta CM FAU - Piva, M R AU - Piva MR FAU - Conconi, F AU - Conconi F LA - ita PT - English Abstract PT - Journal Article TT - Inibizione della biosintesi dell'eme in precursori eritroidi (BFU-e) isolati da sangue periferico umano: effetti sulla sin tesi globinica. PL - Italy TA - Boll Soc Ital Biol Sper JT - Bollettino della Societa italiana di biologia sperimentale JID - 7506962 RN - 11096-26-7 (Erythropoietin) RN - 42VZT0U6YR (Heme) RN - 9004-22-2 (Globins) RN - J06Y7MXW4D (Deferoxamine) SB - IM MH - Chromatography, Ion Exchange MH - Deferoxamine/pharmacology MH - Erythroblasts/drug effects/*metabolism MH - Erythropoietin/pharmacology MH - Globins/*biosynthesis MH - Heme/*biosynthesis MH - Humans MH - Kinetics MH - Protein Biosynthesis/drug effects EDAT- 1983/11/30 00:00 MHDA- 1983/11/30 00:01 CRDT- 1983/11/30 00:00 PHST- 1983/11/30 00:00 [pubmed] PHST- 1983/11/30 00:01 [medline] PHST- 1983/11/30 00:00 [entrez] PST - ppublish SO - Boll Soc Ital Biol Sper. 1983 Nov 30;59(11):1732-8.