The impact of rhG-CSF mobilization on migration and adhesive function of CD4+ T cells / 中华血液学杂志
Chinese Journal of Hematology
;
(12): 87-90, 2006.
Article
in Chinese
| WPRIM
| ID: wpr-243990
ABSTRACT
<p><b>OBJECTIVE</b>To explore the impact of mobilization with recombinant human granulocyte colony stimulated factor (rhG-CSF) on the migration and adhesive function and their related signal mechanism mediated by the CXCR4 and lymphocyte function antigen-1 (LFA-1) molecules on the surfaces of CD4(+) T cells.</p><p><b>METHODS</b>Before and at day 5 on rhG-CSF mobilization, the expression rates of CXCR4 and LFA-1 (CD11a) on CD4(+) T cells in the peripheral blood were detected by tricolor fluorescence labeling, and the migration and adhesive activities of CD4(+) T cells to stroma cell-derived factor 1 alpha (SDF-1 alpha) and intercellular adhesion molecule-1 (ICAM-1) were also tested.</p><p><b>RESULTS</b>The expression of CXCR4 on CD4(+) T lymphocytes was (84.58 +/- 20.31)% before mobilization and (81.23 +/- 22.46)% at day 5 on mobilization. The expression of LFA-1 on CD4(+) T lymphocytes before and at day 5 on mobilization was 100%. There was no significant difference in the expression CXCR-4 and LFA-1 on CD4(+) T lymphocytes whether mobilization (P > 0.05). SDF-1 alpha induced 4 hours' CD4(+) T cells migration didn't change markedly before and after mobilization \[(28.5 +/- 10.3)% vs (31.2 +/- 8.9)%\] (P > 0.05). The adhesive activity of CD4(+) T cells to ICAM-1 was decreased from (85.59 +/- 14.21)% to (61.45 +/- 15.07)% after mobilization (P < 0.05).</p><p><b>CONCLUSIONS</b>The expression of CXCR4 and LFA-1 on CD4(+) T lymphocytes didn't change markedly during rhG-CSF mobilization, but the adhesive activity of CD4(+) T cells to ICAM-1 was frustrated after that.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Physiology
/
Recombinant Proteins
/
CD4-Positive T-Lymphocytes
/
Cell Adhesion
/
Cell Movement
/
Cells, Cultured
/
Granulocyte Colony-Stimulating Factor
/
Lymphocyte Function-Associated Antigen-1
/
Intercellular Adhesion Molecule-1
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Hematology
Year:
2006
Type:
Article
Similar
MEDLINE
...
LILACS
LIS