Document Detail


Induction of human granulocyte differentiation in vitro by ubiquitin and thymopoietin.
MedLine Citation:
PMID:  194644     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Human bone marrow cells were separated according to density by centrifugation on Ficoll-Hypaque gradients and then according to size by velocity sedimentation. This procedure resulted in fractions enriched for immature granulocytes, mature granulocytes, and lymphocytes. Cells in these fractions were analyzed for their expression of certain surface and functional differentiation markers and for their ability to respond to thymopoietin and ubiquitin with the expression of additional differentiation markers. A higher percentage of band form and segmented granulocytes than of more immature granulocytes expressed complement receptors on their surfaces. Thymopoietin and ubiquitin induced a significant percentage of the cells in the immature granulocyte fraction to express this marker. These data suggested that the complement receptor may be viewed as a differentiation marker on human granulocytes, the expression of which can be induced in vitro by thymopoietin and ubiquitin. Furthermore, fractions containing predominantly band form granulocytes were induced by ubiquitin (but not thymopoietin) to develop the capacity to respond to chemotactic agents, and cell fractions containing predominantly myelocytes and metamyelocytes were induced by thymopoietin and ubiquitin to develop the capacity to phagocytose latex particles. These findings indicated that thymopoietin and ubiquitin, two agents known to induce a number of stages of human and mouse lymphocyte differentiation, are also capable of inducing some stages of human granulocyte differentiation in vitro.
Authors:
W A Kagan; G J O'Neill; G S Incefy; G Goldstein; R A Good
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Blood     Volume:  50     ISSN:  0006-4971     ISO Abbreviation:  Blood     Publication Date:  1977 Aug 
Date Detail:
Created Date:  1977-09-02     Completed Date:  1977-09-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7603509     Medline TA:  Blood     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  275-88     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Binding Sites, Antibody
Bone Marrow Cells
Cell Differentiation
Cells, Cultured
Chemotaxis
Complement System Proteins
Granulocytes*
Humans
Leukocytes*
Peptides / pharmacology*
Peroxidase / metabolism
Phagocytosis
Thymopoietins / pharmacology*
Thymus Hormones / pharmacology*
Chemical
Reg. No./Substance:
0/Binding Sites, Antibody; 0/Peptides; 0/Thymopoietins; 0/Thymus Hormones; 9007-36-7/Complement System Proteins; EC 1.11.1.7/Peroxidase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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