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Lung Cancer P-002 : MicroRNA-7-5p’s Role in Growth and Metabolism of Lung Cancer
( Sin Yung Woo ),( Daeun Kang ),( Su Yel Lee ),( Seong-lan Yu ),( Se Jin Park ),( Jin Suk Kim ),( Shin Yeop Lee ),( In Beom Jeong ),( Sun Jung Kwon ),( Wan Jin Hwang ),( Chang Ryul Park ),( Ji Woong S 대한결핵 및 호흡기학회 2020 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.128 No.-
OGlcNAc Transferase (OGT) is a complementary enzyme that regulates O-linked N-acetylglucosamine (O-GlcNAc) and plays a critical role in various cancer phenotypes including invasion, migration, and metabolic reprogramming. In this study, OGT is the predicted target of miR-7-5p. To identify miR-7-5p’s role in cell growth and metabolism, we treated various lung cancer cell lines with miR-7-5ps and performed qRT- PCR and western blot to demonstrate that OGT is the target of miR-7-5p. Furthermore, relative luciferase assay was done to show that miR-7-5p directly regulates OGT. To define the role of mir-7-5p in cancer cell metabolism, we performed LDH assay, glucose uptake, and mitochondrial ATP synthase inhibitor assay. Induced overexpression of miR-7-5p in lung cancer cells decreased aerobic glycolysis as is demonstrated by reduced LDH production, glucose uptake, and glycolysis. Increased O-GlcNAcylation contributed to the augmentation of lung cancer cell metabolism. In the present study, inhibition of OGT by miR7-5p decreased the growth and metabolism of lung cancer. These findings suggest that modulating OGT activity may present a potential therapeutic strategy for cancer.
Association of gingival biotype with the results of scaling and root planing
Sin, Yeon-Woo,Chang, Hee-Yung,Yun, Woo-Hyuk,Jeong, Seong-Nyum,Pi, Sung-Hee,You, Hyung-Keun Korean Academy of Periodontology 2013 Journal of Periodontal & Implant Science Vol.43 No.6
Purpose: The concept of gingival biotype has been used as a predictor of periodontal therapy outcomes since the 1980s. In the present study, prospective and controlled experiments were performed to compare periodontal pocket depth (PPD) reduction and gingival shrinkage (GSH) after scaling and root planing (SRP) according to gingival biotype. Methods: Twenty-five patients diagnosed with chronic periodontitis participated in the present study. The PPD and GSH of the labial side of the maxillary anterior teeth (from the right canine to the left canine) were evaluated at baseline and 3 months after SRP. Changes in the PPD following SRP were classified into 4 groups according to the gingival thickness and initial PPD. Two more groups representing normal gingival crevices were added in evaluation of the GSH. The results were statistically analyzed using the independent t-test. Results: In the end, 16 patients participated in the present study. With regard to PPD reduction, there were no significant differences according to gingival biotype (P>0.05). Likewise, sites with a PPD of over 3 mm failed to show any significant differences in the GSH (P>0.05). However, among the sites with a PPD of under 3 mm, those with the thin gingival biotype showed more GSH (P<0.05). Conclusions: PPD changes after SRP were not affected by gingival biotype with either shallow or deep periodontal pockets. GSH also showed equal outcomes in all the groups without normal gingival crevices. The results of SRP seem not to differ according to gingival biotype.
Expression and Relationship of Male Reproductive ADAMs in Mouse1
Kim, Taewan,Oh, Jungsu,Woo, Jong-Min,Choi, Eunyoung,Im, Sin Hyeog,Yoo, Yung Joon,Kim, Do Han,Nishimura, Hitoshi,Cho, Chunghee Society for the Study of Reproduction 2006 BIOLOGY OF REPRODUCTION Vol.74 No.4
A number of a disintegrin and metalloprotease (ADAM) family members are expressed in mammalian male reproductive organs such as testis and epididymis. These reproductive ADAMs are divided phylogenically into three major groups: ADAMs 1, 4, 6, 20, 21, 24, 25, 26, 29, 30, and 34 (the first group); ADAMs 2, 3, 5, 27, and 32 (the second group); and ADAMs 7 and 28 (the third group). Previous mouse knockout studies indicate that ADAM1, ADAM2, and ADAM3 have intricate expressional relationships, playing critical roles in fertilization. In the present study, we analyzed processing, biochemical characteristics, localization, and expressional relationship of the previously-unexplored, second-group ADAMs (ADAM5, ADAM27, and ADAM32). We found that all of the three ADAMs are made as precursors in the testis and processed during epididymal maturation, and that ADAM5 and ADAM32, but not ADAM27, are located on the sperm surface. Using sperm from Adam2??/?? and Adam3??/?? mice, we found that, among the three ADAMs, the level of ADAM5 is modestly and severely reduced in Adam3 and Adam2 knockout sperm, respectively. Further, we analyzed ADAM7, an epididymis-derived sperm surface ADAM from the separate phylogenetic group, in the knockout sperm. We found that the level of ADAM7 is also significantly reduced in both Adam2 and Adam3-null sperm. Taken together, our results suggest a novel expressional relationship of ADAM5 and ADAM7 with ADAM2 and ADAM3, which play critical roles in fertilization.
채병주(Byung Joo Chae),송병주(Byung Joo Song),김신선(Sin Sun Kim),김성근(Sung Keun Kim),전경화(Kyong Hwa Jun),송교영(Kyo Yung Song),진형민(Hyung Min Chin),김욱(Wook Kim),박조현(Cho Hyun Park),박승만(Seung Man Park),임근우(Keun Woo L 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.72 No.5
Purpose: Complementary and alternative medicine (CAM) has recently been spotlighted, and CAM can be defined as methods for treating diseases or ways to maintain physical health that out lie outside the boundaries of conventional medicine. We have conducted research to determine the status of CAM usage among Korean gastric cancer patients and their attitudes toward it, to determine what better can be done about CAM. Methods: We surveyed those patients in St. Mary Hospital who were diagnosed to gastric cancer and who volunteered to participate in this study. The survey consists of 38 questions and each question covered personal characteristics information as to whether they have used CAM, whether they were satisfied after taking CAM and their intentions for re-use. Results: A total of 195 patients answered the survey. 80 patients (41%) experienced CAM for the purpose of remedying their gastric cancer. The top leading CAM was dietary supplement for 52% of the patients, ginseng for 26% of the patients and Chinese herbal medicine for 10.8% of the patients. 54 patients (67.5%) were satisfied with the results of the CAM and they said that it had an effect on fatigue (45%). The statistics showed positive correlation between the level of education and the CAM users (P=0.001). Conclusion: The percentage of patients using CAM among the gastric cancer patients was high, up to 41%. Most of these patients wanted more information and discussion with their physicians about CAM therapies. The interesting thing was that most of the CAM was oral medicine. Based on our findings, research on the safety and effectiveness of CAM is required.