Effect of stromal cell-derived factor-1 and its receptor CXCR4 on liver metastasis of human colon cancer / 中华外科杂志
Chinese Journal of Surgery
;
(12): 210-213, 2009.
Article
Dans Chinois
| WPRIM
| ID: wpr-238924
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of chemokine stromal cell-derived factor-1 (SDF-1) and its receptor CXCR4 on liver metastasis of human colon cancer.</p><p><b>METHODS</b>Expression of CXCR4 in different colon cancer cell lines and SDF-1 in different tissues were detected by using Western-blot technique. Effect of SDF-1 and anti-CXCR4 monoclonal antibody (McAb) on proliferation and migration of HT-29 cells were measured using MTT methods. Model mimicking liver metastasis of human colon cancer was established by injecting HT-29 cells intrasplenically into BALB/C nude mice. Mice were randomly divided into AMD3100 treated group and control group. Liver metastatic rate and tumor foci were measured 7 weeks after.</p><p><b>RESULTS</b>HT-29 cells expressed higher level of CXCR4 protein, and liver tissue expressed higher level of SDF-1 protein. Compared with the control, SDF-1 could significantly induced the proliferation and migration of the HT-29 cells, and anti-CXCR4 McAb could inhibited both functions of SDF-1. The liver metastasis rate in the control group was 100%, and it was 40% in the AMD3100 treating group (P < 0.05). The mean liver metastasis number also significantly decreased by AMD3100 (7.8 +/- 2.6 vs 22.4 +/- 8.6, P < 0.05).</p><p><b>CONCLUSIONS</b>SDF-1/CXCR4 biological axis play an important role in liver metastasis of human colon cancer. Arrest of CXCR4 can inhibit liver metastasis of colon cancer through blocking cell proliferation and migration induced by SDF-1.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Physiologie
/
Mouvement cellulaire
/
Tumeurs du côlon
/
Cellules HT29
/
Récepteurs CXCR4
/
Tests d'activité antitumorale sur modèle de xénogreffe
/
Lignée cellulaire tumorale
/
Prolifération cellulaire
/
Chimiokine CXCL12
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
/
Humains
langue:
Chinois
Texte intégral:
Chinese Journal of Surgery
Année:
2009
Type:
Article
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