전체 선택해제
총 17건 검색
본문검색 결과만 보기
-
Cytotoxicity and Structure-activity Relationships of Naphthyridine Derivatives in Human Cervical Cancer, Leukemia, and Prostate Cancer
YuJinHwang, MiLyangChung, UyDongSohn, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 7 517-524 (8 pages)
Naphthyridine compounds are important, because they exhibit various biological activities including anticancer, antimicrobial, and anti-inflammatory activity. Some naphthyridines have antimitotic effects or demonstrate anticancer activity by inhibiting topoisomerase II. These compounds have been investigated as potential anticancer agents, and several compounds are now part of clinical trials. A series of naphthyridine derivatives were evaluated for their in vitro cytotoxic activities against... -
Cytotoxic Activity and Quantitative Structure Activity Relationships of Arylpropyl Sulfonamides
YuJinHwang, SangMinPark, ChulBuYim, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.3 9 237-243 (7 pages)
B13 is a ceramide analogue and apoptosis inducer with potent cytotoxic activity. A series of arylpropyl sulfonamide analogues of B13 were evaluated for their cytotoxicity using MTT assays in prostate cancer PC-3 and leukemia HL-60 cell lines. Some compounds (4, 9, 13, 14, 15, and 20) showed stronger activities than B13 in both tumor cell lines, and compound (15) gave the most potent activity with IC50 values of 29.2 and 20.7 ՌM, for PC-3and HL-60 cells, respectively. Three-dimensional... -
Cytotoxicities and Quantitative Structure Activity Relationships of B13 Sulfonamides in HT-29 and A549 Cells
SeulKiChanLee, SangMinPark, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 14 423-430 (8 pages)
B13 analogues are being considered as therapeutic agents for cancer cells, since B13 is a ceramide analogue and inhibits ceramidase to promote apoptosis in cancer cells. B13 sulfonamides are assumed to have biological activity similar to B13, since they are made by bioisosterically substituting the carboxyl moiety of B13 with sulfone group. Twenty B13 sulfonamides were evaluated for their in vitro cytotoxicities against human colon cancer HT-29 and lung cancer A549 cell lines using MTT assays.... -
Cytotoxic Activity and Structure Activity Relationship of Ceramide Analogues in Caki-2 and HL-60 Cells
YongJinKim, EunAeKim, UyDongSohn, ChulBuYim, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 14 441-447 (7 pages)
B13, a ceramide analogue, is a ceramidase inhibitor and induces apoptosis to give potent anticancer activity. A series of thiourea B13 analogues was evaluated for their in vitro cytotoxic activities against human renal cancer Caki-2 and leukemic cancer HL-60 in the MTT assay. Some compounds (12, 15, and 16) showed stronger cytotoxicity than B13 and C6-ceramide against both tumor cell lines, and compound (12) gave the most potent activity with IC50 values of 36 and 9</SUB>ՌM,... -
Magnolol Inhibits LPS-induced NF-κB/Rel Activation by Blocking p38 Kinase in Murine Macrophages
MeiHongLi, GuganKothan, SeungJooCho, PhamThiThuHuong, YongHaiNan, KunYeongLee, SongYubShin, SungSuYea, YoungJinJeon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 1 353-358 (6 pages)
This study demonstrates the ability of magnolol, a hydroxylated biphenyl compound isolated from Magnolia officinalis, to inhibit LPS-induced expression of iNOS gene and activation of NF-ՊB/Rel in RAW 264.7 cells. Immunohisto-chemical staining of iNOS and Western blot analysis showed magnolol to inhibit iNOS gene expression. Reporter gene assay and electrophoretic mobility shift assay showed that magnolol inhibited NF-ՊB/Rel transcriptional activation and DNA binding, respectively.... -
Cytotoxic Activity and Three-Dimensional Quantitative Structure Activity Relationship of 2-Aryl-1,8-naphthyridin-4-ones
YongJinKim, EunAeKim, MiLyangChung, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 16 511-516 (6 pages)
A series of substituted 2-arylnaphthyridin-4-one analogues, which were previously synthesized in our laboratory, were evaluated for their in vitro cytotoxic activity against human lung cancer A549 and human renal cancer Caki-2 cells using MTT assay. Some compounds (11, 12, and 13) showed stronger cytotoxicity than colchicine against both tumor cell lines, and compound 13 exhibited the most potent activity with IC50 values of 2.3 and 13.4</SUB>ՌM, respectively. Three-dimensional... -
Quantitative Structure Activity Relationship between Diazabicyclo[4.2.0]octanes Derivatives and Nicotinic Acetylcholine Receptor Agonists
EunAeKim, KyoungChulJung, UyDongSohn, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.1 9 55-60 (6 pages)
Three dimensional quantitative structure activity relationship between diazabicyclo[4.2.0]octanes and nicotinic acetylcholine receptor (hՁ4Ղ2 and hՁ3Ղ4) agonists was studied using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA). From 11 CoMFA and CoMSIA models, CoMSIA with steric and electrostatic fields gave the best predictive models (q2=0.926 and 0.945, r2ncv=0.983 and 0.988). This study can be used to develop... -
Computer-Aided Drug Discovery in Plant Pathology
한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 6호 1 529-542 (14 pages)
Control of plant diseases is largely dependent on use of agrochemicals. However, there are widening gaps between our knowledge on plant diseases gained from genetic/mechanistic studies and rapid translation of the knowledge into target-oriented development of effective agrochemicals. Here we propose that the time is ripe for computer-aided drug discovery/design (CADD) in molecular plant pathology. CADD has played a pivotal role in development of medically important molecules over the last three... -
The Research of Depth Discontinuity Detection Using Adaptive DIP
Gil-Ja So, Sang-Hyun Kim 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 10 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2015, 제 5권 제 3호 5 37-46 (10 pages)
extract depth discontinuities from disparity map, we adopt DIP operator that is the difference of inverse probabilities for extracting sketch features that contain valleys and edges in 2D image. However, DIP needs a threshold to determine depth discontinuities and this is threshold needs user interaction. In this paper, we propose the method that extracts depth discontinuities without user interaction using learned threshold. We learned the threshold with the Middlebury disparity maps and made... -
Semantic Key Pre-Distribution Protocol For Multi-Phase Wireless Sensor Networks
Carlos Ramos, Zita Maria Almeida do Vale 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 12 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2011, 제 1권 제 1호 3 17-28 (12 pages)
Chrono-Gait Image (CGI), to describe the spatio-temporal walking pattern for human identification by gait. The CGI temporal template encodes the temporal information among gait frames via color mapping to improve the recognition performance. Our method starts with the extraction of the contour in each gait image, followed by utilizing a color mapping function to encode each of gait contour images in the same gait sequence and compositing them to a single CGI. We also obtain the CGI-based real...
