구강점막 편평상피세포암에서 림프관형성 유전자 발현
Gene expression for lymphangiogenic factors in oral mucosal squamous cell carcinoma
박영욱, 김성곤, 김소희, 김한석, 김민근,
소속 상세정보
박영욱 ( Park Young-Wook ) - 강릉원주대학교 치과대학 구강악안면외과학교실
김성곤 ( Kim Seong-Gon ) - 강릉원주대학교 치과대학 구강악안면외과학교실
김소희 ( Kim So-Hee ) - 강릉원주대학교 치과대학 약리학교실
김한석 ( Kim Han-Seok ) - 울산대학교 의과대학 강릉아산병원 구강악안면외과학교실
김민근 ( Kim Min-Keun ) - 국군강릉병원 치과
KMID : 0360120090310060453
Abstract
Background and Purpose: Vascular endothelial growth factor (VEGF)-C, VEGF-D and their tyrosine kinase receptor, VEGF receptor (VEGFR)-3 are recently known to have lymphangiogenic activities in various tumor types. Oral mucosal squamous cell carcinoma (OMSCC) easily metastasizes to cervical lymph nodes, so we determined the expression levels of VEGF-C, VEGF-D and VEGFR-3 in oral squamous cell carcinoma.
Materials and Methods: We performed Western blot analyses with 4 OMSCC cultured tumor cell lines (SCC9, KB, YD-10B, YD-38), and with 7 surgical specimens of OMSCC for the detection of VEGF-C, VEGF-D and VEGFR-3 proteins. Expression of VEGF-C mRNA as well as mRNA for VEGFR-3 in 4 OMSCC cell lines (KB, SCC-4, SCC-9, YD-10B) was investigated by RT-PCR. We also measured VEGFC/VEGF-D protein concentrations in the media and protein concentration of VEGFR-3 in cell lysates of 4 OMSCC cell lines (SCC9, KB, YD-10B, YD-38) using commerical ELISA kits. Finally, we performed immunoprecipitation for the detection of VEGF-C in cell lysates of 4 OMSCC cells (KB, SCC-4, SCC-9, YD-10B) and real-time RT-PCR for the quantification of VEGF-C mRNA.
Results: In the result of Western blotting with cell lysates of 4 OMSCC cells, we could not detect the protein expression of VEGF-C, VEGF-D, and VEGFR-3. But, all tumor tissues demonstrated VEGF-C and VEGFR-3. VEGF-C mRNA was detected at various levels in 4 OMSCC cell lines. Moreover, OMSCC cells secreted VEGF-C, not VEGF-D and VEGFR-3 was also detected in cell lysates of OMSCC by ELISA. Immunoprecipitation and real-time RT-PCR revealed VEGF-C was also expressed in 4 OMSCC cell lines.
Conclusion: Taken together, tumor cells of OMSCC secrete VEGF-C, not VEGF-D. And VEGFR-3 is expressed tumor cells as well as OMSCC tumor tissues, needs further study.
키워드
VEGF-C;VEGF-D;VEGFR-3;Oral mucosal squamous cell carcinoma
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