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구강 편평상피세포암 마우스 모델에서 림프관내피 성장인자 수용체의 억제
계준영,박영욱,Kye, Jun-Young,Park, Young-Wook 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.1
Purpose: Tumor associated angiogenesis and/or lymphangiogenesis are known to be linked by VEGFR signaling pathways. These processes are regulated by several growth factors including VEGFR-2, VEGFR-3. E7080 is an orally active inhibitor of multiple tyrosine kinases including VEGFR-2, 3. Therefore, it was proposed that E7080 may inhibit angiogenesis and lymphangiogenesis. The aim of this study was to determine the effect of E7080 in a nude mouse model of OSCC. Methods: KB cells were xenografted into the submucosal tissue of the mouth floor of athymic mice. Seven days after the xenograft, the mice were randomized into 2 groups. E7080 were administered orally to the experimental group once per day. The mice were sacrificed 3 weeks after the treatment. The tumors were examined histopathologically. Immunohistochemical assays with anti- VEGF-C, VEGFR-2, VEGFR-3, phosphorylated VEGFR-2/3 (pVEGFR-2/3), and D2-40 antibodies were then performed. Results: The transplantation of human OSCC tumor cells into the mouth floor resulted in the formation of orthotopic tumors. The experimental (E7080 treatment) group showed a slowly increased tumor volume. Moreover, immunohistochemical staining demonstrated higher levels of VEGF-C, VEGFR-2, VEGFR-3, pVEGFR-2/3 and D2-40 expression in the control group than in the experimental group. Conclusion: These results suggest that E7080 may provide therapeutic benefits in OSCC.
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토끼 두개골 결손부에서 전기 방사된 나노실크-수산화인회석 복합체를 이용한 골재생 효과에 대한 연구
계준영,김성곤,김민근,권광준,박영욱,김좌영,이민정,박영환,Kye, Jun-Young,Kim, Seong-Gon,Kim, Min-Keun,Kwon, Kwang-Jun,Park, Young-Wook,Kim, Jwa-Young,Lee, Min-Jung,Park, Young-Hwan 대한악안면성형재건외과학회 2010 Maxillofacial Plastic Reconstructive Surgery Vol.32 No.4
Purpose: The objective of the present study was to determine the capability of electrospun silk fibroin as a biomaterial template for bone formation when mixed with nano-hydoxyapatite in vivo. Materials and Methods: Ten New Zealand white rabbits were used for this study and bilateral round shaped defects were formed in the parietal bone (diameter: 8.0 mm). The electrospun silk fibroin was coated by nano-hydroxyapatite and grafted into the right parietal bone (experimental group). The left side (control group) did not receive a graft. The animals were sacrificed at 6 weeks and 12 weeks, humanly. The microcomputerized tomogram (${\mu}CT$) was taken for each specimen. Subsequently, they were undergone decalcification and stained for the histological analysis. Results: The average value of all measured variables was higher in the experimental group than in the control at 6 weeks after the operation. BMC in the experimental group at 6 weeks after operation was $48.94{\pm}19.25$ and that in the control was $26.17{\pm}16.40$ (P = 0.027). BMD in the experimental group at 6 weeks after operation was $324.59{\pm}165.24$ and that in the control was $173.03{\pm}120.30$ (P = 0.044). TMC in the experimental group at 6 weeks after operation was $19.50{\pm}6.00$ and that in the control was $10.52{\pm}6.20$ (P = 0.011). TMD in the experimental group at 6 weeks after operation was $508.88{\pm}297.57$ and that in the control was $273.54{\pm}175.91$ (P = 0.06). Gross image of both groups showed higher calcification area at 12 weeks than them in 6 weeks. The average value of ${\mu}CT$ analysis was higher at 12 weeks than that in 6 weeks in both groups. BMC in the experimental group at 12 weeks after operation was $51.21{\pm}8.81$ and that in the control was $33.47{\pm}11.13$ (P = 0.010). BMD in the experimental group at 12 weeks after operation was $323.39{\pm}21.54$ and that in the control was $197.75{\pm}76.23$ (P = 0.012). TMC in the experimental group at 12 weeks after operation was $21.44{\pm}5.30$ and that in the control was $13.31{\pm}4.17$ (P = 0.008). TMD in the experimental group at 12 weeks after operation was $524.47{\pm}19.37$ and that in the control was $299.60{\pm}136.20$ (P = 0.016). Conclusion: The rabbit calvarial defect could be successfully repaired by electrospun silk nano-fiber combined with nano-hydroxyapatite.
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구순구개열과 관련되지 않은 Tessier 분류 2 안면열의 교정: 증례보고
박용태,계준영,김성곤,권광준,박영욱,Park, Yong-Tae,Kye, Jun-Young,Kim, Seong-Gon,Kwon, Kwang-Jun,Park, Young-Wook 대한악안면성형재건외과학회 2010 Maxillofacial Plastic Reconstructive Surgery Vol.32 No.6
Oblique facial cleft is extremely rare. The frequency was reported 1/1300 cases of facial cleft. The cleft appears to be bilateral in approximately 20% and more often on the right when unilateral. Oblique facial cleft is nearly always associated with cleft lip and palate. Thus, the case that is unilateral on the left and not associated with cleft lip or palate is very rare. We experienced a case of 2 years 6 months old Philippine girl who had oblique facial cleft that is not associated with cleft lip or palate. The probable cause and treatment is discussed with a review of literatures.
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