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[PA-0008] Assembly and Analysis of the Complete mitogenome of Silybum marianum
Jeongwoo Lee(Jeongwoo Lee),Yedomon Ange Bovys Zoclanclounon(Yedomon Ange Bovys Zoclanclounon ),Hwajin Jung(Hwajin Jung),Taeho Lee(Taeho Lee),Jeonggu Kim(Jeonggu Kim),Guhwang Park(Guhwang Park),Keunpyo 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
Lee, Gee-Hyung,Lee, Seong Jin,Jeong, Dae Young,Kim, Ha-Young,Lee, Doohyun,Lee, Taeho,Hwang, Jong-Yeon,Park, Woo Kyu,Kong, Jae-Yang,Cho, Heeyeong,Gong, Young-Dae Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.8
Novel 2,6-difuctionalized 2H-benzopyrans were synthesized and evaluated for a sphingosylphosphorylcholine(SPC) inhibitor. The synthetic 2H-benzopyrans 1c and 3a showed high potency in SPC-induced cell proliferation assay ($IC_{50}$ < 20 nM). Neither hERG $K^+$ channel binding (> $10{\mu}M$) nor CYP inhibitions (> $10{\mu}M$) were observed. Also, the simple structure-activity relationship (SAR) results were obtained from analysis of 2H-benzopyran derivatives 1-3 and the anti-SPC effect of 2H-benzopyran 1c was confirmed by a HUVEC tube formation assay.
Role of moesin in HMGB1-stimulated severe inflammatory responses
Lee, Wonhwa,Kwon, Oh Kwang,Han, Min-Su,Lee, You-Mie,Kim, Shin-Woo,Kim, Kyung-Min,Lee, Taeho,Lee, Sangkyu,Bae, Jong-Sup Thieme 2015 Thrombosis and Haemostasis Vol.114 No.2
<B>Summary</B><P>Sepsis is a life-threatening condition that arises when the body’s response to infection causes systemic inflammation. High-mobility group box 1 (HMGB1), as a late mediator of sepsis, enhances hyper-permeability, and it is therefore a therapeutic target. Despite extensive research into the underlying mechanisms of sepsis, the target molecules controlling vascular leakage remain largely unknown. Moesin is a cytoskeletal protein involved in cytoskeletal changes and para-cellular gap formation. The objectives of this study were to determine the roles of moesin in HMGB1-mediated vascular hyperpermeability and inflammatory responses and to investigate the mechanisms of action underlying these responses. Using siRNA knockdown of moesin expression in primary human umbilical vein endothelial cells (HUVECs), moesin was found to be required in HMGB1-induced F-actin rearrangement, hyperpermeability, and inflammatory responses. The mechanisms involved in moesin phosphorylation were analysed by blocking the binding of the HMGB1 receptor (RAGE) and inhibiting the Rho and MAPK pathways. HMGB1-treated HUVECs exhibited an increase in Thr558 phosphorylation of moesin. Circulating levels of moesin were measured in patients admitted to the intensive care unit with sepsis, severe sepsis, and septic shock; these patients showed significantly higher levels of moesin than healthy controls, which was strongly correlated with disease severity. High blood moesin levels were also observed in cecal ligation and puncture (CLP)-induced sepsis in mice. Administration of blocking moesin antibodies attenuated CLP-induced septic death. Collectively, our findings demonstrate that the HMGB1-RAGE-moesin axis can elicit severe inflammatory responses, suggesting it to be a potential target for the development of diagnostics and therapeutics for sepsis.</P>
Lung lobe torsion in a dog with a tracheal stent for severe tracheal collapse
( Taeho Lee ),( Aryung Nam ),( Dong-kwan Lee ),( Han-joon Lee ),( Kun-ho Song ) 한국동물위생학회 2023 한국동물위생학회지 (KOJVS) Vol.46 No.4
A 7-year-old castrated male Pomeranian dog presented with severe goose honking cough and dyspnea. Thoracic radiographs revealed a narrowed tracheal diameter at the thoracic inlet, classified as tracheal collapse grade 4. Despite medical treatment, the dog’s life-threatening airway obstruction did not improve. Subsequently, tracheal stent placement resulted in a significant improvement in respiratory condition, with no recurrence of symptoms observed during the 4-month period, except for coughing induced by excitement and anxiety. However, the patient presented with a one-week history of productive cough, exercise intolerance, and loss of appetite. Radiographs and computed tomography scans revealed torsion of the left cranial lung lobe. The patient underwent affected lung lobectomy, which involved the removal of the necrotized cranial portion and heavily congested caudal portion. Unfortunately, the patient did not recover and eventually passed away. Histopathological examination of the resected lung tissue confirmed coagulative necrosis and marked peribronchiolar edema, consistent with lung lobe torsion.
Lee, Wonhwa,Lee, Doohyun,Lee, Yuri,Lee, Taeho,Song, Kyung-Sik,Yang, Eun-Ju,Bae, Jong-Sup American Chemical Society and American Society of 2018 Journal of natural products Vol.81 No.5
<P>Only a few isoflavones have been isolated from plants of the genus <I>Abronia</I>. The biological properties of compounds isolated from <I>Abronia</I> species have not been well established, and their antisepsis effects have not been reported yet. In the present study, a new <I>C</I>-methylcoumarinochromone, was isolated from <I>Abronia nana</I> suspension cultures. Its structure was deduced as 9,11-dihydroxy-10-methylcoumarinochromone (boeravinone Y, <B>1</B>) by spectroscopic data analysis and verified by chemical synthesis. The potential inhibitory effects of <B>1</B> against high mobility group box 1 (HMGB1)-mediated septic responses were investigated. Results showed that <B>1</B> effectively inhibited lipopolysaccharide-induced release of HMGB1 and suppressed HMGB1-mediated septic responses, in terms of reduction of hyperpermeability, leukocyte adhesion and migration, and cell adhesion molecule expression. In addition, <B>1</B> increased the phagocytic activity of macrophages and exhibited bacterial clearance effects in the peritoneal fluid and blood of mice with cecal ligation and puncture-induced sepsis. Collectively, these results suggested that <B>1</B> might have potential therapeutic activity against various severe vascular inflammatory diseases <I>via</I> inhibition of the HMGB1 signaling pathway.</P> [FIG OMISSION]</BR>
이태호(Taeho Lee),이기훈(Kihoon Lee),안건태(Geontae Ahn),이명준(Myungjoon Lee) 한국정보과학회 2008 한국정보과학회 학술발표논문집 Vol.35 No.1
최근 디스플레이 장치의 발전에 따라 대형 디스프레이 장치를 활용하는 범위가 확대되었다. 이러한 대형디스플레이 장치를 활용하는 범위의 확장에 따라 여러 사람이 대형 디스플레이 장치를 효율적으로 공유하는 것이 바람직하다. VNC(Virtual Network Computing)는 GUI를 통한 원격 제어 도구로써 다른 지역에 위치한 컴퓨터로 데스크탑 화면을 전송할 수 있다. 또한 VNC는 하나의 세션에 두 명 이상의 사용자가 동시에 같은 데스크탑 화면을 사용할 수 있다. 본 논문에서는 VNC를 활용한 디스플레이 장치의 공유에 대하여 기술한다. VNC 서버를 이용하여 대형 디스플레이 장치에 화면을 전송하며 대형 디스플레이 장치는 JavaViewer를 통하여 전송받은 데스크탑 화면을 출력할 수 있다. 그리고 디스플레이 공유 관리 도구를 통하여 동시에 여러 사람이 데스크탑 화면을 전송하는 것을 효율적으로 관리할 수 있다.
클립보드 이미지 전송을 위한 VNC 서버와 클라이언트의 확장
이태호(Taeho Lee),김정현(Junghyun Kim),이홍창(Hongchang Lee),이명준(Myungjoon Lee) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.1D
VNC(Virtual Network Computing)는 원격 제어 소프트웨어의 하나로서 다른 지역에 위치한 컴퓨터의 자원을 제어할 수 있는 기능을 제공한다. VNC는 원격 시스템과 로컬 시스템과의 자료 교환을 위하여 원격시스템과 로컬 시스템간의 클립보드 내용을 공유하는 기능을 제공하고 있으나, 현재까지 개발된 VNC 소프트웨어들은 단지 문자 데이터를 공유하는 방법만을 제공하고 있고, 이미지와 같은 멀티미디어 데이터를 공유하는 방법을 제공하고 있지 않다. 본 논문에서는 클립보드에 저장된 이미지 데이터를 공유할 수 있도록 RFB 프로토콜을 확장하였다. 그리고 확장된 프로토콜을 지원하기 위하여 오픈소스 VNC 소프트웨어인 Ultra VNC 서버와 플랫폼 독립적인 클라이언트인 JavaViewer를 확장하였다. 사용자는 확장된 VNC를 통하여 원격 시스템과 로컬 시스템간의 클립보드 이미지 공유를 원활하게 수행할 수 있다.