Effect of Tiam-l gene silencing on human colorectal carcinoma cell line SW480 metastasis in nude mice observed by real-time whole-body fluorescence imaging / 南方医科大学学报
Journal of Southern Medical University
;
(12): 756-759, 2007.
Article
in Chinese
| WPRIM
| ID: wpr-337391
ABSTRACT
<p><b>OBJECTIVE</b>To observe the effect of Tiam-l gene silencing on the metastasis of human colorectal carcinoma cell line SW480 in nude mice by real-time whole-body fluorescence imaging.</p><p><b>METHODS</b>Enhanced green fluorescence protein (EGFP)-labeled human colorectal carcinoma cells, SW480/EGFP(+)/Tiam-1(-) and SW480/EGFP(+), were implanted into nude mice via tail vein injection or orthotopic colonal inoculation, and real-time whole-body fluorescence imaging was performed to compare the difference in tumor progression and metastasis between the two cells.</p><p><b>RESULTS</b>Both SW480/EGFP(+) and SW480/ EGFP(+)/Tiam-1(-) cells stably expressed EGFP, and Tiam1 gene expression was reduced in SW480/EGFP(+)Tiam-1(-) to 30% of the expression level in SW480/EGFP(+) cells. The growth rate of the two cell lines had no significant difference in vitro (P>0.05), but SW480/EGFP(+)/Tiam1(-) cell proliferation and metastasis were depressed obviously in comparison with SW480/EGFP(+) in vivo (P<0.05).</p><p><b>CONCLUSION</b>Tiam-1 gene may play an important role in invasion and metastasis of human colorectal cancer.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Transplantation, Heterologous
/
Bone Neoplasms
/
Diagnostic Imaging
/
Immunohistochemistry
/
Colorectal Neoplasms
/
Cell Survival
/
Chemistry
/
Blotting, Western
/
Guanine Nucleotide Exchange Factors
Type of study:
Diagnostic study
Limits:
Animals
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2007
Type:
Article
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