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갑상선 자극호르몬이 갑상선암세포의 VEGF, 신생혈관 형성, 성장, 침윤 및 전이에 미치는 영향
소의영,박희붕,김혜진,김현만<SUP>1<,SUP>,Euy Young Soh,M,D,Hee Boong Park,M,D,Hye Jin Kim,M,D,and Hyun Man Kim,M,D,<SUP>1<,SUP> 대한갑상선-내분비외과학회 2001 The Koreran journal of Endocrine Surgery Vol.1 No.1
Purpose: Vascular endothelial growth factor (VEGF) is a vascular endothelial cell specific mitogen and a major regulator of angiogenesis. VEGF secretion is activated in some thyroid cancers and that VEGF secretion is stimulated by TSH. So we postulated that TSH may promote growth and invasion in some thyroid cancers by stimulating VEGF secretion and angiogenesis. Methods and Results: We investigated the TSH effect for the VEGF secretion, endothelial cell proliferation and invasion in vitro with the primary cultured normal thyroid cell (NT-1) and thyroid cancer cell line (TPC-1). And to evaluate the relationship between TSH and VEGF, angiogenesis and tumor growth in vivo, we xenografted human dermal matrix inoculated with thyroid cells into nude mice or directly injected subcutaneously. For the study, mice were made hypothyroid (Group 1) by antithyroid hormone p.o, hyperthyroid (Group 2) by L-thyroxine injection and euthyroid (Group 3). One week after the treatment, significant difference were noted in T3, T4 and TSH level between each group, but the VEGF level showed significant difference in group 1 only compared with group 2 and 3. NT-1 or TPC-1 were seeded in the upper chamber of Transwell and HUVEC were cultured in lower chamber, and added different concentration of TSH. NT-1 and TPC-1 secreted VEGF under basal condition, but the level were similar. TPC-1 cells secreted significantly more VEGF than NT-1 after TSH (1, 10, 100 mIU/dl) stimulation, which were also parallel with the concentration of TSH. In low concentration of TSH (0, 1 mIU/dl), there were no difference of HUVEC proliferation between NT-1 and TPC 1. In high concentration of TSH (10, 100 mIU/dl), however, TPC-1 enhanced HUVEC proliferation than NT-1 significantly (p<0.05). Similar findings were noted in thyroid cell invasion. Invasion was higher in TPC-1 than in NT-1 in high concentration of TSH (10, 100 mIU/dl). In vivo study using the dermal matrix showed that number of blood vessels ingrowth were higher in Group 1 (25/HPF) than Group 2 (16/HPF) or Group 3 (17/HPF). But there was no difference between Group 2 and Group 3. Level of TSH and VEGF were also increased significantly in Group 1 compared with in Group 2 and Group 3. The size of tumor did not showed significant difference between each group during observation. The tumor from Group 1 (6.2 gm) were larger compared with Group 2 (5.1 gm) or Group 3 (5.6 gm), but this difference was not significant statistically (p>0.05). The number of blood vessels in tumor were also more increased in Group 1 and were commonly located in the peripheral portion of tumor. Conclusion: We conclude that thyroid cancer cell line secrete the VEGF and TSH secretion is more enhanced by the stimulation of TSH. And increased VEGF promote the vascular endothelial cell proliferation, invasion and angiogenesis in thyroid cancer. (Korean J Endocrine Surg 2001; 1:51-60)
A New 5α,8α-Epidioxy Sterol from a Marine Sponge Psammocinia Species
Hye Jin Park1,,Xuan Luo1,,Jongki Hong2,,Dong-kyoo Kim3,,Kwang Sik Im1, and,Jee H. Jung1* 한국생약학회 2005 Natural Product Sciences Vol.11 No.4
An investigation of the MeOH soluble fractions of a marine sponge Psammocinia sp. (Order:Dictyoceratida) led to the isolation of a new epidioxy sterol (1) and four known sterols (2-5). Their planarstructures were defined by analyses of the spectroscopic data. The 27-nor-24-methylcholestan type side chain withan epidioxy nucleus (1) was unprecedented. Compounds 1-5 were isolated from a sponge Psammocinia sp. for the first time.
Ja Ryung Han 1,Jin Hyang Jung,Wan Wook Kim,Jeeyeon Lee,Ho Yong Park,Hye Jung Kim,Ji-Young Park 대한갑상선-내분비외과학회 2017 The Koreran journal of Endocrine Surgery Vol.17 No.2
Purpose: Papillary thyroid cancer (PTC) has a strong propensity for lymph node metastasis, which is related with local recurrence, and disease-specific survival in the elderly. We evaluated the association between lymph node metastasis and disease multifocality, bilaterality, and other clinicopathological variables to identify risk factors and aid surgical decision-making. The relationship between the number of foci and metastasis to cervical lymph node was also evaluated. Methods: Patients with PTC (n=819) undergoing thyroidectomy at our institution were included. The study population was segregated into 4 groups based on PTC multifocality and bilaterality. Results: Cervical lymph node metastasis, tumor size, and tumor extent were significantly different between the study groups. The frequency of central and lateral cervical lymph node metastasis was the highest in the bilateral multifocal disease group, followed by the bilateral solitary group, unilateral multifocal group, and the unilateral solitary group. One PTC focus per thyroid lobe was associated with increased metastasis (53.8%). Moreover, lymph node positivity doubled with 5–7 foci (71.4%), and tripled with ≥8 foci (100.0%). Bilateral solitary and bilateral multifocal PTC were identified as independent predictors of cervical lymph node metastasis. Conclusion: Bilateral PTC was associated with lymph node positivity, which increased proportionally with the number of PTC foci. Bilateral solitary or multifocal PTC were associated with more aggressive features such as larger primary tumor size, more frequent extrathyroidal extensions, and regional lymph node metastasis. The presence of multiple bilateral foci or more than 3 foci are independent risk factors of lymph node metastases.
크론병으로 인한 십이지장-대장 누공의 Endoloop과 Hemoclip을 이용한 수술 전 내시경적 결찰 증례보고
박미성 ( Mi Sung Park1 ),김원진 ( Won Jin Kim ),허지혜 ( Ji Hye Huh ),박수정 ( Soo Jung Park ),홍성필 ( Sung Pil Hong ),김태일 ( Tae Il Kim ),김원호 ( Won Ho Kim ),천재희 ( Jae Hee Cheon ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.2
Duodeno-colonic fistula is an enterocolonic fistula that occurs as a complication of Crohn`s disease. Symptoms of duodeno colonic fistula are similar to those of Crohn`s disease, such as weight loss and diarrhea. The treatment of choice is surgery, although medical treatment may also be considered. However, surgery is recommended when all available medical therapies have been ineffective. In this case, we report a secondary duodeno-colonic fistula due to Crohn`s disease that was temporarily managed by an endoscopic procedure with a detached endoloop and hemoclips as a bridging therapy to final surgical repair.
( Soo Jin Youn ),( Joo Youn Park ),( Hee Su Kim ),( Eun Jin Kang ),( Kil Jin Kang1 ),( Hye Kyung Park ),( Gun Hee Kim ) 한국식생활문화학회 2009 Food Quality and Culture Vol.3 No.2
This study investigated consumers` recognition on shelf life of health functional foods to set up their rational expiration date. For this study 107 male and female adults aged 20 to 59 years were randomly selected as major consumers of health functional foods. And their data were analyzed with SPSS 17.0. The questionnaire included questions asking a consumer`s recognition on the shelf life of health functional foods and how to treat health function food passing its shelf life. In this study, the consumers were found to pay attentions considerably to the shelf life. But most of them did not know an accurate meaning of the shelf life of health functional food and mistook it for expiry date. In addition, the consumers doubted safety of health functional foods passing the shelf life. Therefore, education for consumers about an accurate meaning of the shelf life was needed. The results of this study were considered to be helpful to set up a reasonable expiration date for health functional food.
α1,3-Gal Knock out Pigs Increases N-Glycolylneuraminic Acids
Jong-Yi Park,Mi-Ryung Park,Hong-Thuy Bui,Deug-Nam Kwon,Min-Hui Kang,Mihye Oh,Jae-Woong Han,Ssang-Goo Cho1,Chankyu Park,Hosup Shim,Hye-Min Kim,Man-Jong Kang,Jin-Ki Park,Jeong-Woong Lee,Kyung-Kwang Lee 한국동물번식학회 2012 Reproductive & Developmental Biology(Supplement) Vol.36 No.2s
In this study, we examined whether Hanganutziu-Deicher (H-D) antigens are important as an immunogenic non-a1,3-galactose (Gal) epitope in pigs with a disrupted a1,3- galactosyltransferase gene. The targeting efficiency of the AO blood genotype was achieved (2.2%) in pig fibroblast cells. A total of 1800 somatic cell nuclear transfer (SCNT) embryos were transferred to 10 recipients. One recipient developed to term and naturally delivered two piglets. The a1,3-galactosyltransferase activity in lung, liver, spleen, and testis of heterozygote a1,3-galactosyltransferase gene knockout (GalT-KO) pigs was significantly decreased, whereas brain and heart showed very low decreasing levels of a1,3- galactosyltransferase activity when compared to those of control. Enzyme-linked lectinosorbent assay showed that the heterozygote GalT-KO pig had more sialyla2,6- and sialyla2,3- linked glycan than the control. Furthermore, the heart, liver, and kidney of the heterozygote GalT-KO pig had a higher N-glycolylneuraminic acid (Neu5Gc) content than the control, whereas the lung of the heterozygote GalT-KO pig had Neu5Gc content similar to the control. Collectively, the data strongly indicated that Neu5Gc is a more critical xenoantigen to overcoming the next acute immune rejection in pig to human xenotransplantation.