부추와 마늘 바이러스의 分離 同定 및 理化學的 性質에 관한 硏究

노문철,박우원,장무웅 嶺南大學校 基礎科學硏究所 1991 基礎科學硏究 Vol.11 No.-

부추와 마늘은 바이러스 病에 대한 防止策없이 오랬동안 裁培되어온 韓國의 重要한 채소류 중의 하나이다. 따라서 이러한 바이러스 病을 防止하기 위해서는 부추와 마늘의 바이러스에 관한 基本的인 情報가 더욱 必要하다. 이러한 重要性때문에 本 硏究는 부추와 마늘의 바이러스를 分離 同定하여 그 特性을 調査하였다. 그 結果는 다음과 같다. 1. 부추와 마늘의 바이러스는 低速과 高速 遠心分離에 의해 純化되었고, 電子顯微鏡으로 觀察한 結果, 길이 650-700nm의 絲狀 粒子로 確認되었다. 2. 汁液 接種에 의해 感染된 명아주와 잠두의 잎은 局部病斑 症狀을 나타내었다. 3. 부추, 명아주, 잠두의 罹病葉을 초박절편하여 電子 顯微鏡으로 觀察한 결과, 바이러스 粒子는 集團 및 散在像으로 細胞質內에 存在하였다. 4. SDS-PAGE法으로 電氣泳動한 結果, 부추와 마늘의 바이러스의 coat protein의 分子量은 4.12×10⁴dalton으로 確認되었다. 5. 1.4% agarose gel 造成으로 水平電氣泳動한 結果, 부추와 마늘의 바이러스의 RNA의 分子量은 2.85×?? dalton으로 確認되었다. 6. GLV의 항혈청을 이용한 혈청학적 실험(면역전기영동법, 면역전자현미경법)에서 CCLV와 GLV가 동일한 반응을 나타냈었다. Chinese chive(Allium tuberosum) and garlic(Allium sativum) are an important vegetable crops for the korean people and have long been cultivated extensively in Korea. Because of this importance. studies were initiated to isolate and characterize the chinese chive latent virus(CCLV) and garlic latent virus(GLV). Result of these studies are summarized as follows: 1. CCMV and GLV were purified by alternate high and low speed centrifugation of chinese chive leaf or garlic leaf extracts. 2. Electron microscopic examination of CCLV and GLV revealed rod shaped. These paticles are measured about 650-700nm in length. 3. In manual inoculation, these viruses induced local lesion on Chenopodium album and broad bean. 4. In ultrathin section, Particles of CCLV and GLV were often found aggregate or scatered in the cytoplasm. 5. The molecular weight of the coat protein of CCLV and GLV were estimated by polyacrylamade gel electrophoresis in the presence of sodium dodecyl sulfate. Coat protein subunit of CCLV and GLV estimated about about 4.12×10⁴ daltons. 6. The moleculat weight of the nucleic acid of CCLV and GLV estimated about 2.85×?? daltons. 7. By the method of immunoelectrophoresis and immunosorbent electron microscope it has been proved that CCLV is identical to GLV.

뱀딸기(Duchesnea chrysanthe) 부위별 생리활성 비교

이광식,노문철,장영주,이재은,최애진,박충범,차선우,이동진 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.3

뱀딸기 추출물의 항산화, 항염, 항암활성을 검정한 결과는 다음과 같다. ·뱀딸기(D. chrysantha) 부위별 항산화활성을 비교해본 결과 전초 > 지상부 > 열매의 순으로 전초가 Ascorbic acid(34.72μg/ml)보다 높은 활성을 나타냈으며, 열매가 가장 낮게 나타났다. ·항염활성은 전초 > 지상부 > 열매의 순으로 항산화활성과 유사한 경향을 보였다. ·항암활성은 인체 자궁경부암세포 HeLa에 대해서 열매가 가장 높게 나타났으며, 전초는 낮게 나타났다. 간암세포 SKHep1에 대해서 지상부와 전초가 비슷한 활성으로 열매보다는 높게 나타났으나 전체적으로 낮은 활성을 나타내었다. This study was conducted to evaluate antioxidant, anti-inflammatory and anticancer activities of different plant parts in Duchesnea chrysanthe Miq. Methanolic extracts of whole plant (24.37 μg/ml) had in higher antioxidant activities than fruit (124.29 μg/ml), shoot (41.22 μg/ml), and ascorbic acid (34.72 μg/ml). Anti-inflammatory activities showed higer level in whole plant (63.56%) than fruit (24.48) and shoot (48.95). Fruits showed high level (23.06 μg/ml) in anticancer activities of HeLa cell, and shoot showed high level in SK-Hepl cell as 102.80 μg/ml. However, shoot showed low level to compare with doxorubicin.

초두구로부터 분리한 비환식 트리테르페노이드계 화합물의 세포 접착인자 저해활성

김지수,노문철,김강성,김관희,임병용,Kim, Ji-Soo,Rho, Mun-Chual,Kim, Gang-Seong,Kim, Koanhoi,Rhim, Byung-Yong 한국해양바이오학회 2007 한국해양바이오학회지 Vol.2 No.4

The present study purified two noncyclic triterpenoids, compound 1 and compound 2, that intervene interaction of ICAM-1 and LFA-1 from ethanol extracts of Alpinia katsumadai. The compound 1 and 2 inhibited adherence of sICAM-1 to THP-1 cells with an $IC_{50}$ of $7.59{\mu}g/m{\ell}$ 및 $6.98{\mu}g/m{\ell}$, respectively, without affecting viability of the cells. The compound 1 and 2 also inhibited interaction of CHO-ICAM-1 cells with THP-1 cells with an $IC_{50}$ $6.7{\mu}g/m{\ell}$ 및 $5.5{\mu}g/m{\ell}$, respectively. These findings suggest that the noncyclic triterpenoids from Alpinia katsumadai have inhibitory activities against cell adherent molecules. The present study proposes that noncyclic triterpenoids from Alpinia katsumadai can applied to therapeutic approaches to the diseases that are associated with adhesion of inflammatory cells. 1. 천연자원으로부터 ICAM-1과 LFA-1 매개성 세포접착 저해제를 탐색한 결과, 초두구 에탄올 추출물은 이에 대한 저해 활성을 나타내었다. 2. 초두구로부터 세포 접착 인자 활성에 관한 물질을 분리 정제하기 위하여, 각종 용매추출과 컬럼 크로마토그래피를 이용하여 얻은 화합물 1과 2로 세포접착인자 저해활성을 확인하였다. 3. 분리된 화합물 1과 2의 sICAM-1과 THP-1 세포와의 결합저해활성 측정 결과, $IC_{50}$ 값은 각각 $7.59{\mu}g/m{\ell}$ 및 $6.98{\mu}g/m{\ell}$로 측정되었다. 실험에 사용된 농도에서는 세포독성을 보이지 않았다. 4. 분리된 화합물 1과 2의 CHO-ICAM-1과 THP-1 세포간의 결합저해활성을 측정한 결과, $IC_{50}$ 값이 각각 $6.7{\mu}g/m{\ell}$ 및 $5.5{\mu}g/m{\ell}$로 측정되었다. 5. 이상의 실험 결과로 미루어 보아, 초두구로부터 분리한 비환식 트리테르페노이드계 화합물들은 세포 접착인자에 대한 저해활성을 가지고 있다고 볼 수 있으며 이 기전을 통하여 생길 수 있는 질환에 대한 치료제 개발에 유효할 것이다. 특히 동맥경화에 대해서는 새로운 기전으로 접근하고 있으므로 기존의 치료제들의 작용기작과는 다른 약품의 개발이 기대된다. 또한 ICAM-1은 염증반응 및 암의 전이에도 관련되어 있으므로, 동맥경화 관련 질환이외에도 다양한 질환에 대한 의약품으로의 응용도 기대된다.

Bavachin and Isobavachalcone, Acyl-coenzyme A: Cholesterol Acyltransferase Inhibitors from Psoralea corylifolia

최정호,노문철,이승웅,최지나,김관회,송규용,김영국 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.11

Acyl-coenzyme A: cholesterol acyltransferase (ACAT) catalyzes cholesterol esterification and plays important roles in intestinal absorption of cholesterol, hepatic production of lipoproteins and accumulation of cholesteryl ester within macrophages and smooth muscle cells. Ethanol extract of Psoralea corylifolia showed a significant inhibition of ACAT enzyme. Via bioactivity-guided fractionation of the ethanol extract of Psoralea corylifolia, two prenylated flavonoids were isolated. Their structures were determined as bavachin (1) and isobavachalcone (2) by spectroscopic analysis (¹H-, 13C-NMR, 2DNMR, and ESI-MS). The IC50 values were 86.0 (1) and 48.0 (2) μM in the ACAT assay system using rat liver microsome. Compound 2 also decreased cholesteryl ester formations in HepG2 cells. In addition, this compound showed a noncompetitive type of inhibition of ACAT.

Inhibition of LFA-1/ICAM-1-mediated Cell Adhesion by Stilbene Derivatives from Rheum undulatum

이승웅,노문철,Byung Soon Hwang,Mi-Hwa Kim,박찬선,이우송,오현미 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.10

Six stilbenes were isolated from the methanol extract of Rheum undulatum rhizomes by bioactivity-guided fractionation. The structures of the compounds were determined by spectroscopic analysis (1H-, 13C-NMR and MS), to be desoxyrhapontigenin (1), rhapontigenin (2), trans-resveratrol (3), piceatannol (4), piceatannol-3'-O-β-D-glucopyranoside (5) and isorhapontin (6). Compounds 1-4 inhibited the direct binding between sICAM-1 and LFA-1 of the THP-1 cells in a dose-dependent manner with IC50 values of 50.1, 25.4, 33.4 and 45.9 μM, respectively. On the other hand, the other compounds 5 and 6 with a glucose moiety in each molecule did not show any inhibitory activity in the cell adhesion assay (IC50 values of >100.0 μM). Compounds 2, 3 and 4 also had an inhibitory effect on direct binding between sVCAM-1 and VLA-4 of THP-1 cells. This suggests that the stilbenes from Rheum undulatum rhizomes are good candidates for therapeutic strategies towards inflammation.

Thienotriazolopyrimidine Derivatives Inhibit STAT3 Activation Induced by IL-6

이승웅,오현미,노문철,송양헌 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.8

N-Substituted 2-n-butyl-3-fluoropyrroles, α,α-Difluoro-iodomethyl n-butylketone, 2,α,α-Difluoro- γ-iodo-γ-(trimethylsilyl)propyl n-butylketone, 2-Butyl-3,3-difluoro-5-trimethylsilyl pyrroline

Yinglan Jin,노문철,Kondaji Gajulapati,Hwa Young Jung,Shanthaveerappa K. Boovanahalli,이지현,Jung Ho Choi,김영국,Kyeong Lee,Yongseok Choi 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.6

A novel series of imidazo[1,2-α]pyridines was designed, synthesized, and tested for their ability to inhibit acyl- CoA:cholesterol acyltransferase. Preliminary lead optimization efforts resulted in the identification of ACAT inhibitors represented by analogues 5b, 5c, 6a, 6c, 7b, and 7c. The ACAT inhibitory activity of these compounds was further established by potent inhibition of cholesteryl ester formation in HepG2 cells by a representative analogue 7b.

호장근의 쿠마린에 의한 RAW 264.7 세포주의 nitric oxide 생성 저해활성

노태철,최희철,이승웅,김영호,노문철,김영국,이현선,Rho, Tae-Cheol,Choi, Hee-Cheol,Lee, Seung-Woong,Kim, Young-Ho,Rho, Mun-Chual,Kim, Young-Kook,Lee, Hyun-Sun 한국생약학회 2001 생약학회지 Vol.32 No.3

During the screening for inhibitors of nitric oxide production in LPS-activated macrophage, RAW 264.7 cells, two coumarins were isolated from chloroform extract of the root of Polygonum cuspidatum. They were identified as decursin (1) and decursinol angelate (2) on the basis of spectroscopic methods. The $IC_{50}$ values of these compounds on NO production were $0.76\;{\mu}M$ (1) and $2.6\;{\mu}M$ (2), respectively. However, the iNOS activity was not inhibited by treatment with these compounds. Their inhibitory effect on NO production seems to result from the suppression of iNOS induction through the suppression of NF-kB activity.

생약자원으로부터 Monocyte Chemoattractant Protein-1에 의한 Chemotaxis 저해활성 검색

이승웅,권오억,김영호,노문철,이현선,김영국,정미연 한국생약학회 2002 생약학회지 Vol.33 No.4

암세포 특이적 세포 사멸을 유도하는 자생식물 추출물의 항암 효과

윤이관,이승은,이동진,노문철,성정숙,박충범,장영주 한국생약학회 2009 생약학회지 Vol.40 No.1

Thirty five methanol extracts from 19 natural local plants, which have been used as traditional anti-cancer medicine, were prepared. They were analyzed the cytotoxic effects on primary fibroblast cells and carcinoma cells. The root extract of Solanum nigrum were highly toxic in both cell lines with IC50 values of less than 0.01 µg/µl, and 26 of 35 extracts were toxic in all cells with IC50 values of 0.1~2 µg/µl. Three extracts including the fruit extracts of Solanum nigrum and Morus alba had no cytotoxic activity in both cell lines. Five of 35 extracts were highly toxic in cancer cells than in primary cells. Because primary cells were more resistant on these extracts, the five extracts were selected for anti-cancer agent candidates. Apoptosis o r programmed cell death has an essential role in chemotherapy-induced tumor cell killing. Recently, inducers of apoptosis have been used in cancer therapy. When two of 5 cancer cell-specific cytotoxic extracts (Ulmus parvifolia and Zelkova serrata) were treated in concentration of 0.02~0.1 µg/µl, apoptosis were increased at 3-5 times in cancer cell lines. Finally, the apoptotic effects of these extracts were confirmed by cleavages of both poly-(ADP-ribose)-polymerase and caspase-3 as apoptotic markers. In this report, we suggested that two of 35 medicinal herb extracts can be useful anti-cancer drug candidates inducing apo - ptosis in several carcinoma cell lines.