title: Inhibitory effects of high molecular weight substances from CAPD dialysate on mouse bone marrow progenitor cells and lymphocyte transformation.
abstract: The isolation and purification of F A1 (MW 23-64 KD), F B1 (MW 24-54 KD), F A2 and F B2 (both MW 67 KD) of high molecular weight substances (HMS) from continuous ambulatory peritoneal dialysis (CAPD) dialysate of 2 end staged renal disease (ESRD) patients (A and B) were carried out by precipitation, desalting, gradient elution, chromatography and concentration. 0.1ml of tris-buffer, 0.2ml of uremic serum. 0.1ml of F A1, F B1, 0.2ml of F A2 were separately added to mouse bone marrow culture medium and lymphocyte culture medium, then colony-forming unit of erythroid (CFU-E), burst-forming unit of erythroid (BFU-E), colony-forming unit of granulocyte-macrophage (CFU-GM) and lymphocyte transformation (LT) were measured. We found that the uremic serum and F A1, F B1 could inhibit CFU-E, BFU-E very significantly (P < 0.001) compared to the tris-buffer control, but could not inhibit CFU-GM. The uremic serum and F A1 could inhibit LT significantly (P < 0.01) compared to the tris-buffer control, while F A2 could inhibit neither CFU-E nor BFU-E. If the dosage of erythropoietin (EPO) added to mouse bone marrow progenitor cell culture medium increased 3-6 times. F A1 could not express its inhibitory effect on CFU-E or BFU-E.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Nephrology, China-Japan Friendship Hospital, Beijing.
authors.forename: C L
authors.initials: CL
authors.lastname: Yang
authors.forename: X H
authors.initials: XH
authors.lastname: Du
authors.forename: H
authors.initials: H
authors.lastname: Wu
mesh_terms: D000740:Anemia / Q000209:etiology / Q000517:prevention & control; D000818:Animals; D001798:Blood Proteins / Q000494:pharmacology*; D016516:CD4-CD8 Ratio; D015672:Erythroid Precursor Cells; D004920:Erythropoiesis / Q000187:drug effects; D004921:Erythropoietin / Q000494:pharmacology; D006412:Hematopoietic Stem Cells; D006801:Humans; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000628:therapy; D008213:Lymphocyte Activation / Q000187:drug effects*; D008297:Male; D051379:Mice; D008875:Middle Aged; D010531:Peritoneal Dialysis, Continuous Ambulatory
chemical_list: D001798:Blood Proteins; C007627:erythropoiesis inhibiting factors; D004921:Erythropoietin