Transcriptional activation of hypoxia-inducible factor-1α by HDAC4 and HDAC5 involves differential recruitment of p300 and FIH-1

Seo, Hee-Won,Kim, Eun-Jin,Na, Hyelin,Lee, Mi-Ock Elsevier 2009 FEBS letters Vol.583 No.1

<P><B>Abstract</B></P><P>The interplay between hypoxia-inducible factor-1α (HIF-1α) and histone deacetylase (HDACs) have been well studied; however, the mechanism of cross-talk is unclear. Here, we investigated the roles of HDAC4 and HDAC5 in the regulation of HIF-1α function and its associated mechanisms. HDAC4 and HDAC5 enhanced transactivation by HIF-1α without stabilizing HIF-1α. HDAC4 and HDAC5 physically associated with HIF-1α through the inhibitory domain (ID) that is the binding site for factor inhibiting HIF-1 (FIH-1). In the presence of these HDACs, binding of HIF-1α to FIH-1 decreased, whereas binding to p300 increased. These results indicate that HDAC4 and HDAC5 increase the transactivation function of HIF-1α by promoting dissociation of HIF-1α from FIH-1 and association with p300.</P><P><B>Structured summary:</B></P><P>MINT-6802187:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>FIH1</I> (uniprotkb:Q9NWT6) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802058:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>HDAC4</I> (uniprotkb:P56524) by <I>pull down</I> (MI:0096)</P><P>MINT-6802021:</P><P><I>HIF1 alpha</I> (uniprotkb:Q61221) <I>physically interacts</I> (MI:0218) with <I>HDAC4</I> (uniprotkb:P56524) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802036:</P><P><I>HIF1 alpha</I> (uniprotkb:Q61221) <I>physically interacts</I> (MI:0218) with <I>HDAC5</I> (uniprotkb:Q9UQL6) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802102:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>HDAC5</I> (uniprotkb:Q9UQL6) by <I>pull down</I> (MI:0096)</P><P>MINT-6802121, MINT-6802156:</P><P><I>P300</I> (uniprotkb:Q09472) <I>physically interacts</I> (MI:0218) with <I>HIF1 alpha</I> (uniprotkb:Q16665) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P>

Histone deacetylase 3 is selectively involved in L3MBTL2-mediated transcriptional repression

Yoo, Jung-Yoon,Choi, Kyung-Chul,Kang, HeeBum,Kim, Young Jun,Lee, Jeongmin,Jun, Woo Jin,Kim, Mi-Jeong,Lee, Yoo-Hyun,Lee, Ok-Hee,Yoon, Ho-Geun Elsevier 2010 FEBS letters Vol.584 No.11

<P><B>Abstract</B></P><P>This is the first report that L(3)mbt-like 2 (L3MBTL2) specifically interacts with the histone deacetylase domain of histone deacetylase 3 (HDAC3) via its MBT domain. Here, we show that L3MBTL2 selectively interacts with HDAC3, but not other class I HDACs. An in vitro peptide-binding assay demonstrated the specific association of HDAC3 with methylated histone-K20 tail and L3MBTL2. Furthermore, depletion of HDAC3 resulted in a decrease of methylated K20-H4, as well as an increase in acetylated histone H3. Consequently, HDAC3 knock-down selectively suppressed L3MBTL2-mediated transcriptional repression. Taken together, our results reveal the concerted action of both HDAC3 and L3MBTL2 in histone deacetylation and methylation-dependent transcriptional repression.</P><P><B>Structured summary</B></P><P>MINT-7719975: <I>L3MBTL2</I> (uniprotkb:Q969R5) and <I>HDAC3</I> (uniprotkb:O15379) <I>colocalize</I> (MI:0403) by <I>fluorescence microscopy</I> (MI:0416)</P><P>MINT-7719941, MINT-7719921: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>binds</I> (MI:0407) to <I>HDAC3</I> (uniprotkb:O15379) by <I>pull down</I> (MI:0096)</P><P>MINT-7719991: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-7719958: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>physically interacts</I> (MI:0915) with <I>HDAC3</I> (uniprotkb:O15379) by <I>anti tag coimmunoprecipitation</I> (MI:0007)</P><P>MINT-7719897: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>two hybrid</I> (MI:0018)</P>

거대 난소 종양의 염전 1예

김미영,이해혁,유애리,박정희,이임순,정수호,고은석,레앙소팥,배동한,김태희,이권해 순천향의학연구소 2008 Journal of Soonchunhyang Medical Science Vol.14 No.1

..

임상 검체에서 분리된 nontyphoid Salmonella에서의 integron의 빈도와 특징

이정은,박수진,김성한,김미나,이남용,이복권,이상오,김양수,우준희,최상호 대한감염학회 2009 감염과 화학요법 Vol.41 No.3

Background : Nontyphoid Salmonella (NTS) is a leading cause of human food-borne enteritis, It has been known that integron, a naturally occurring gene capture and expression element, Plays an important role in the development and dissemination of multidrug-resistance. In this study, we investigated the prevalences and molecular characteristics of integrons in NTS clinical strains. Materials and Methods : Between 1995-96 and 2000-03, a total 261 NTS clinical strains comprising 39 serotypes were collected from clinical specimens. All strains were serotyped, and the MICs of ampicillin, chloramphenicol, streptomycin, sulfamethoxazole, tetracycline, and trimethoprim were determined by agar dilution method. Integrons were detected by PCR amplification of integrase genes, and gene cassettes were determined by PCR and sequencing, Conjugation experiments were performed using E. coli J53 as a recipient. The clonal relationship was analyzed by pulsed-field gel electrophoresls (PFGE). Results : Of the 261 strains tested, class 1 integrons were present in 21 strains (8.0%). Class 2 and class 3 integrons were not found. The integron-positive rate was higher in S. Typhimurium (24.2% [8/33]) than in S. Enteritidis (2.0% [3/153]). Overall rates of antimicrobial resistance were higher in integron-positive strains. dhfr12-orfF-aadA2gene cassette was detected in 5 strains, aadA2in 4 strains, dhfr17-orfF-aadA5 in 2 strains, and addA1 in 1 strain. Ten integron-positive transconjugants were successfully selected. Among 8 integron-positive strains of S. Typhimurium, 7 had similar PFGE patterns. Conclusion: This study suggests that integrons are already playing a significant role in antimicrobial resistance in NTS. Continuous monitoring is needed to detect the emergence and spread of integron-mediated antimicrobial resistance.

중환자에서 동맥혈 가스분석 횟수와 그로인한 실혈량에 대한 연구

이석열,전철우,정영수,오희숙,마분란,이정미,정혜영,이만복,이길노 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background : Arterial blood gas analysis is the most comon exam in intensive care unit. In this study, the frequency of blood gas analysis and the amount of blood loss after Blood Gas Analysis in Intensive Care Unit were observed. Methods : From November 1999 to February 2000, 115 patients admitted to intensive care unit at Soonchunhyang university Kumi hospital were studied prospectively for the frequency of blood gas analysis and the amount of blood loss after blood gas analysis in Intensive Care Unit. Results : The mean value of frequency of blood gas analysis was 6.41±6.49 and the mean value of amount of blood loss after blood gas analysis was 0.78ml. This was lower than that of other foreign reports. The patients with ventilator therapy above 24 hours showed higher frequency of blood gas analysis than that of not applied ventilator patients. Pulse oxymetry was applied to all patients and the frequency of blood gas analysis was decreased due to the use of strict pulse oxymetry. Conclusion : Doctors and nurses in intensive care unit keep in mind that adequate blood sampling is needed for the decrease of blood loss. Education and protocol for the decrease of blood loss after arterial blood gas analysis may be necessary.

대학생의 노인에 대한 태도에 관한 연구

이영희,권미경,김남선,김혜원,최미경,이규은,홍윤미 關東大學校 醫科大學 醫科學硏究所 2003 關東醫大學術誌 Vol.7 No.1

The purpose of this study is to identify the perception, the future and images, and prejudice toward old people. And to examine difference the group of gerontological education (educated group) with the non-educated group. 189 students in K university were participated in this study. The educated group was composed 101 students who enrolled liberal arts course that learned this title. Data were collected from May to June, 2002. The results are as follows; 1) Many students perceived the elderly that was started 60~64 years. 2) The perception, the future and images, and prejudice of both groups were some positively. 3) Each variables were not significantly difference. But the mean level of the educated group were more higher. 4) The educated group was found significantly related to the perception and prejudice(r=.303, p=.002). The non-educated group was found significantly related to the perception and the future and image(r=.421, p=.000), the perception and prejudice(r=.321, p=.003), the future, image and prejudice(r=.272, p=.012).

DEVELOPMENT OF HIGH VALUE-ADDED TEXTILE PRODUCTS WITHIN THE GLOBALIZATION OF THE KOREAN WAVE

Mi Suk Lee,Kyung Hee Chung,Song Mi Lim,Qingqing Luo 글로벌지식마케팅경영학회 2015 Global Fashion Management Conference Vol.2015 No.06

Fresh attention is being paid to lifestyle brands offering differentiated contents and value such that the 21st century is now being called the age of global lifestyle. Recently national income has been increasing and a broad lifestyle culture has been established. Thus, brands with Scandinavian (Sweden, Denmark, or Norway), culture sensitivity, and design have deeply permeated the domestic market which has led to a domestic consumers' lifestyle trend (Chung& Park, 2004; Kwon, 2013; Magnus & Chrystin, 2003). In particular, such global lifestyle brands as Marimekko (Finland), CathKidston (UK), and Muji (Japan) have secured competitiveness in the global market as textile products which reflect its country's cultural identity (Lee& Park, 2014). Meanwhile, a new word, Hanban (韓版)which refers to Korean brands or products that were created from the Korean wave (韓流), which refers to Korean dramas or songs. Korean culture has been commercialized and grafted into various industries. In particular, a strong wind of Hanban in fashion cultural products not only has spread the Korean lifestyle to the world, but has enhanced its influence on related industries as well as fashion. Although certain major Korean companies launched lifestyle brands such as Jaju, Modern House, Butter, and Pum to help realize a Korean lifestyle brand business, most products sold in Korean lifestyle brands focus on overseas imported goods,so it is difficult to find Korean images on these products(Bang, 2004; Lee & Chung, 2013). The size of the lifestyle market is growing as a high value-added industry that can lead consumers' lifestyle trends, and there is a growing interest for Korean fashion cultural products. Therefore, the purpose of this study is to attempt to develop textile designs for Korean-made high value-added products with the improvement of Korean brand values. For study methodology, the status of lifestyle brands at home and abroad was examined and textile designs were developed for lifestyle brand B. For the development of the textile designs, demand required by brand B was researched and a textile design concept was established based on fashion and interior decoration trends. Then, a textile was designed using a motive that can effectively represent the identity of brand B and the Korean image. Adobe Photoshop 6.0 and Adobe Illustrator CC programs were used for the standardized textile design motif, pattern development, and colorway. The results were as follows. First, global lifestyle brands such as Marimekko, CathKidston, and Muji sell differentiated lifestyle products from other brands by applying motifs and colors which symbolize their country's and city's cultural image on textile products and displaying their own identity and peculiarity. On the other hand, Korean lifestyle brands such as Casamia, Hanssem, Kosney, and Art Box do not plan or produce their own design, but will import and sell foreign textile fabric or textile products with high recognition, or copy imported fabric. Thus, their textile design is unsatisfactory to express their own identity and satisfy consumers' needs. Second, as to the development direction required by brand B, a Korean lifestyle brand, the focus was to first, 'design American and European products using colors and techniques which reflect Korean image trends', Second, to create a 'design with Scandinavia's peculiar simplified line and sensitive color', and finally, to make a 'flower pattern design with good sustainable market feasibility'. Based on the direction and 2015 S/S color and textile trends, three concepts were established: Global Tribe, Bunny in the Wonderland, and Beyond Nature. Global Tribe is a folk paintin g(Minhwa) representing the Korean image well, and was reinterpreted in a modern sense. Bunny in the Wonderland is a modern Scandinavian style design using a rabbit, a symbol of brand B, as the main motif. Beyond Nature used a flower motif in various expression techniques and images. A textile design was developed by extracting from a folk painting, a rabbit, and a flower motif and standardizing a motif in watercolor, pen, and graphic techniques. It was digitalized by a scanner and a pattern was made via the steps of color adjustment and repetition. Three kinds of textile designs were developed according to three concepts and four kinds of colorways were made for each design. This study attempted to develop a textile design as Korean-made high value-added textile products. It is meaningful to suggest textile design with Korean cultural images and brand identity. Further study will focus on the development of fashion cultural products and DIY products to commercialize developed textile design.

Algal bioassay 에 의한 조류생장 제한영양염류 결정

오희목(Hee Mock Oh),이석준(Seog June Lee),김성빈(Seong Bin Kim),박미경(Mi Kyung Park),윤병대(Byung Dae Yoon),김도한(Do Han Kim) 한국하천호수학회 1998 생태와 환경 Vol.31 No.2

Determination of Limiting Nutrient for Algal Growth by Algal Bioassay. Oh, Hee-Mock, Seog June Lee, Seong-Bin Kim, Mi- Kyung Park, Byung-Dae Yoon and Do-Han Kim (Environmental Microbiology Research Unit, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Korea and Water Resources Research Institute, Korea Water Resources Corporation, Taejon 305-390, Korea) Water quaiity and algal growth potential (AGP) using Microcystis aeruginosa were investigated from April to September 1997 in Daechung Reservoir. Secchi disk transparency was 1.1 m in August. Chlorophyll-a concentrations were higher than 10㎍/l at all samples. Total phosphorus concentration was in a range of 0.020∼0.027mg/l which is at the approximate value of 0.03 mg/l, the general critical level of eutrophication. These results indicate that Daechung Reservoir is in an eutrophic state except some temporary times and restricted sites. Phosphorus uptake rate of M. aeruginosa was higher in the water from the epilimnion than in the hypolimnion and also higher under light condition than under dark condition. Therefore, phosphorus uptake rate appears to depend on cellular phosphorous content and light condition, a meaning of endergonic process. Phosphorus was the most frequently limiting nutrient: phosphorus was limiting algal gowth in April and May, nitrogen, phosphorus and trace elements were the limiting factors for algae in August, and trace elements in September. If a fast growing alga, M, aeruginosa, is used as a test organism for assaying AGP, in vivo fluorescence instead of dry weight can be measured for algal biomass and incubation period can be reduced from traditional 14 days to 7 days.

조혈모세포이식 환자에서 발생한 Cytomegalovirus 질환의 특징 : 일개 대학변원에서 최근 10년간의 경험

최수미,이동건,박선희,김시현,김유진,민창기,김희제,이석,최정현,유진홍,김동욱,이종욱,민우성,신완식,김춘추 대한감염학회 2009 감염과 화학요법 Vol.41 No.1

Background : Studies on cytomegalovirus (CMV) diseases in Korean hematopoietic stem cell transplant (HSCT) recipients are lacking and do not reflect the recent trends of advances and changes. Therefore, we tried to analyze the clinical features of CMV diseases in HSCT recipients over the past 10 years at a tertiary university hospital in Korea. Methods : Retrospective review of medical records was done for all adult HSCT patients who received transplant at the Catholic HSCT Center from January 1998 to January 2008. Results : Forty-four cases (2.2%) of CMV diseases were identified. CMV pneumonia was diagnosed in 17 patients, retinitis in 16 patients, enterocolitis in 7 patients, esophagitis 1 patient, gastritis in 1 patient, duodenitis in 1 patient, and hepatitis in 1 patient. The median onset of symptom was 90 days after transplantation. Late CMV diseases accounted for 47.7%. CMV related death varied from 0 to 58.8% according to the involved organ. CMV retinitis was diagnosed relatively later in the course of transplantation mostly in patients who had chronic graft versus host disease (GVHD). On the contrary, CMV enterocolitis mainly occurred in patients who suffered from acute GVHD. The overall concurrent CMV reactivation was documented to be 63.6%: the concurrent CMV reactivation was observed only in 37.5% of patients with retinitis. Conclusions : We observed some differences in the pattern of CMV disease manifestation according to the involved organ and reconfirmed the fact that CMV pneumonia is the most common and fatal disease in HSCT recipients. Additionally, CMV retinitis was not uncommon in HSCT recipients. Since specific marker does not exist in predicting retinitis, regular ocular examination should be done thoroughly, especially in patients with chronic GVHD.

자발성 뇌내출혈 환자의 비위관 제거시기에 관한 연구

김명희,김영희,김영미,주영희,이윤미,정은혜 성인간호학회 2001 성인간호학회지 Vol.13 No.1

Dysphagia is common and serious problem in intracerebral hemorrhage patients. Nasogastric-tube incubation is an important method for dysphagic patients who have an intracerebral hemorrhage. But many discomforts develope in patients with a nasogastric-tube. Therefore, it is necessary to decide when to remove the tube and as early as possible. The purpose of this study is to decide the applying time of training program to facilitate deglution for dysphagic patients who have intracerebral hemorrhage. Among the 343 patients with intracerebral hemorrhage who had been admitted to P-university hospital from April, 1994 to December, 1998, the medical record of the 110 patients with nasogastric tube were reviewed retrospectively. Results from the study were as follows : 1.Nasogastric tube insert duration of improved patients was a mean of 23.2 days 2.When a L-tube was inserted and removed, the L.O.C. of improved patients was 2.6±0.8(in the midst of stupor or a semicoma). 1.9±0.5(close to drowsy), respectively This was signifcantly different(p=0.000). 3.When a L-tube was inserted and removed, GCS of improved patients was 9.3±2.9. 12.1±2.2 respectively This was significantly different (p=0.000). 4.The duration of nasogastric tube insertion was the longest when in a stupor(L.O.C), 6 ∼8 points(GCS).