CKbeta8-1 alters expression of cyclin E in colony forming units-granulocyte macrophage (CFU-GM) lineage from human cord blood CD34 + cells
Experimental & Molecular Medicine
;
: 619-623, 2005.
Artigo
em Inglês
| WPRIM
| ID: wpr-24112
ABSTRACT
A C6 beta-chemokine, CKbeta8-1, suppressed the colony formation of CD34 + cells of human cord blood (CB). Molecular mechanisms involved in CKbeta8-1-medicated suppression of colony formation of CD34 + cells are not known. To address this issue, the level of various G1/S cell cycle regulating proteins in CKbeta8-1-treated CD34 + cells were compared with those in untreated CD34 + cells. CKbeta8-1 did not significantly alter the expression of the G1/S cycle regulation proteins (cyclin D1, D3, and E), CDK inhibitor (p27and Rb), and other cell proliferation regulation protein (p53) in CB CD34 + cells. Here we describe an in vitro system in which CB CD34 + cells were committed to a multipotent progenitor lineage of colony forming units-granulocyte/macrophage (CFU-GM) by a simple combination of recombinant human (rh) GM-CSF and rhIL-3. In this culture system, we found that cyclin E protein appeared later and disappeared faster in the CKbeta8-1-treated cells than in the control cells during CFU-GM lineage development. These findings suggested that cyclin E may play a role in suppressing the colony formation of CFU-GM by CKbeta8-1.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Células-Tronco
/
Células Cultivadas
/
Regulação da Expressão Gênica
/
Fase G1
/
Substâncias de Crescimento
/
Proteínas de Ciclo Celular
/
Linhagem da Célula
/
Antígenos CD34
/
Ciclina E
/
Quimiocinas CC
Limite:
Humanos
Idioma:
Inglês
Revista:
Experimental & Molecular Medicine
Ano de publicação:
2005
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS