1.Snowboarder's Fracture in Cable-Wakeboarder.
Taehoon KIM ; Sunghyun KIM ; Jiwon KIM ; Jaesung YOO
The Korean Journal of Sports Medicine 2017;35(2):131-134
Fractures of the lateral process of the talus (LPT) are considered rare, accounting for less than 1% of all ankle injuries in the general population. These fractures are nearly 15 times more likely to occur in snowboarders. Recently, the number of population who started enjoying cable-wakeboard is increasing and this sport may cause fracture of the LPT by axial loading occur on the LPT while boarding or trick. We report on a case of involving LPT fracture during cable-wakeboard trick with successful screw osteosynthesis.
Ankle Injuries
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Skiing
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Sports
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Talus
5.Tumor - specific Virus Replication and Cytotoxicity of E1B 55 kD - deleted Adenovirus.
Jaesung KIM ; Boyoung LEE ; Jinahn KIM ; Joong Bae AHN ; Joon Oh PARK ; Nae Chun YOO ; Joo Hang KIM ; Jae Kyung ROH ; Jin Sik MIN ; Byung Soo KIM ; Heuiran LEE
Journal of the Korean Cancer Association 2000;32(1):200-209
PURPOSE: To overcome the limitations of cancer gene therapy using replication-incom- petent adenovirus, we generated E1B 55 kD-deleted adenovirus (YKL-1) by polymerase chain reaction (PCR) and homologous recombination. We then investigated tumor-specific virus replication and cytotoxicity of YKL-1 in vitro and in vivo. MATERIALS AND METHODS: YKL-1 was constructed by reintroducting E1A and E1B 19 kD into pTG-CMV El/E3-deficient adenoviral vector and inducing homologous recombination in E. coli. The recombinant vector pYKL-1 was transfected into 293 cells to generate YKL-1. The properties of newly constructed YKL-1 was defined by PCR and immuno- blotting analysis. Virus replication was examined by infecting human normal and cancer cells on 6-wells at multiplicity of infection (MOI) of 10 for 3 days. Virus was then recovered and titered. Cytopathic effect was analyzed by infecting human normal and cancer cells on 24-wells at MOIs of 10, 1 or 0.1 for 7 to 10 days and staining them with crystal violet solution. Inhibition of tumor growth was examined in human cancer cell xenografts in nu/nu mice by intratumoral injection of YKL-l. RESULTS: PCR and immunoblotting analysis confirmed that YKL-1 contained E1A and E1B 19 kD but not E1B 55 kD. In human normal cells, virus replication and subsequent cytopathic effect of E1B 55 kD-deleted adenovirus YKL-1 was markedly attenuated by larger than 2 to 3 log in magnitude, compared to that of wild-type ad-XJ. In contrast, YKL-1 was capable of replicating and inducing cytotoxicity i.n most human cancer cells. C33A and Hep3B containing p53 mutation were much more sensitive, whereas HeLa and H460 with wild type p53 were relatively resistant to YKL-1. Finally, the tumor growth was dramatically retarded by intratumoral injection of YKL-1 in C33A cervical cancer xenograft and the histology showed significant necrosis by intratumoral injection of YKL-1. CONCLUSION: The results here demonstrated the ability of preferential virus replication and cytotoxicity of ElB 55 kD-deleted adenovirus YKL-1 in human cancer cells. Therefore, these indicated a promising potential of YKL-1 as an antitumoral virus agent and a selective replication-competent virus vector.
Adenoviridae*
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Animals
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Genes, Neoplasm
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Genetic Therapy
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Gentian Violet
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Heterografts
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Homologous Recombination
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Humans
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Immunoblotting
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Mice
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Necrosis
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Polymerase Chain Reaction
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Uterine Cervical Neoplasms
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Virus Replication*
6.Genetic Predisposition of Polymorphisms in HMGB1-Related Genes to Breast Cancer Prognosis in Korean Women.
Junsu LEE ; Jaesung CHOI ; Seokang CHUNG ; JooYong PARK ; Ji Eun KIM ; Hyuna SUNG ; Wonshik HAN ; Jong Won LEE ; Sue K PARK ; Mi Kyung KIM ; Sei Hyun AHN ; Dong Young NOH ; Keun Young YOO ; Daehee KANG ; Ji Yeob CHOI
Journal of Breast Cancer 2017;20(1):27-34
PURPOSE: The high mobility group box 1 (HMGB1) protein has roles in apoptosis and immune responses by acting as a ligand for receptor for advanced glycation end products (RAGE), Toll-like receptors (TLRs), and triggering receptor expressed on myeloid cells 1. In particular, HMGB1/RAGE is involved in tumor metastasis by inducing matrix metalloproteinase 2 (MMP2) and MMP9 expression. We investigated the associations between genetic variations in HMGB1-related genes and disease-free survival (DFS) and overall survival (OS) in Korean female breast cancer patients. METHODS: A total of 2,027 patients in the Seoul Breast Cancer Study were included in the analysis. One hundred sixteen single nucleotide polymorphisms (SNPs) were extracted from eight genes. A multivariate Cox proportional hazards model was used to estimate the hazard ratio and 95% confidence interval (CI) of each SNP. The effects of the SNPs on breast cancer prognosis were assessed at cumulative levels with polygenic risk scores. RESULTS: The SNPs significantly associated with DFS were rs243867 (hazard ratio, 1.26; 95% CI, 1.05–1.50) and rs243842 (hazard ratio, 1.24; 95% CI, 1.03–1.50); both SNPs were in MMP2. The SNPs significantly associated with OS were rs243842 in MMP2 (hazard ratio, 1.33; 95% CI 1.03–1.71), rs4145277 in HMGB1 (hazard ratio, 1.29; 95% CI, 1.00–1.66), rs7656411 in TLR2 (hazard ratio, 0.76; 95% CI, 0.60–0.98), and rs7045953 in TLR4 (hazard ratio, 0.50; 95% CI, 0.29–0.84). The polygenic risk score results for the DFS and OS patients showed third tertile hazard ratios of 1.72 (95% CI, 1.27–2.34) and 2.75 (95% CI, 1.79–4.23), respectively, over their first tertile references. CONCLUSION: The results of the present study indicate that genetic polymorphisms in HMGB1-related genes are related to breast cancer prognosis in Korean women.
Advanced Glycosylation End Product-Specific Receptor
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Apoptosis
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Breast Neoplasms*
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Breast*
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Disease-Free Survival
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Female
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Genetic Predisposition to Disease*
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Genetic Variation
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HMGB1 Protein
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Humans
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Matrix Metalloproteinase 2
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Myeloid Cells
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Neoplasm Metastasis
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Polymorphism, Genetic
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Polymorphism, Single Nucleotide
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Prognosis*
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Proportional Hazards Models
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Seoul
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Toll-Like Receptors
7.Analysis of thromboembolic events in head and neck cancer patients who underwent concurrent chemoradiotherapy with cisplatin
Hundo CHO ; Jin-Hyuk CHOI ; Seok Yun KANG ; Hyun Woo LEE ; Yong Won CHOI ; Tae-Hwan KIM ; Mi Sun AHN ; Chul-Ho KIM ; Yoo Seob SHIN ; Jeon Yeob JANG ; Young-Taek OH ; Jaesung HEO ; Seung Soo SHEEN
The Korean Journal of Internal Medicine 2022;37(6):1269-
8.Analysis of thromboembolic events in head and neck cancer patients who underwent concurrent chemoradiotherapy with cisplatin
Hundo CHO ; Jin-Hyuk CHOI ; Seok Yun KANG ; Hyun Woo LEE ; Yong Won CHOI ; Tae-Hwan KIM ; Mi Sun AHN ; Chul-Ho KIM ; Yoo Seob SHIN ; Jeon Yeob JANG ; Young-Taek OH ; Jaesung HEO ; Seung Soo SHEEN
The Korean Journal of Internal Medicine 2022;37(3):653-659
Background/Aims:
The study investigated the incidence of thromboembolic events (TEE) in head and neck (H&N) cancer patients who received concurrent chemoradiotherapy (CCRT) with cisplatin, and analyzed the factors affecting TEE occurrence
Methods:
Two hundred and fifty-seven patients who started CCRT with cisplatin for H&N cancer from January 2005 to December 2019 were analyzed.
Results:
TEE occurred in five patients, an incidence rate of 1.9%. The 2-, 4-, and 6-month cumulative incidences of TEE were 0.8%, 1.6%, and 1.9%, respectively. Khorana score was the only factor associated with TEE occurrence (p = 0.010).
Conclusions
The incidence of TEE in H&N cancer patients who underwent CCRT with cisplatin was relatively low when compared to other types of cancer. However, patients with a high Khorana score require more careful surveillance for possible TEE occurrence.