• 제목/요약/키워드: VCAM-l

검색결과 38건 처리시간 0.023초

Anti-cell Adhesion Effect of PLM-f74 with U937 Cell from Hallophilic Enterobacteria and Identification of Strain

  • Lim, Jong-Kwon;Seo, Hyo-Jin;Shin, Jin-Hyuk;Lee, Se-Young;Kim, Min-Yong;Kim, Jong-Deog
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2005년도 생물공학의 동향(XVII)
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    • pp.406-411
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    • 2005
  • Fermented materials with enterobacteria isolated from fusiform fish, have strong anti-angiogenesis effect and anti-cell adhesion effect. PLM-f74 got from 74th fraction of size exclusion chromatography from fermented material, showed strong anti-cell adhesion effect between HUVECs and U937 monocytic cell. Adhesion of U937 cell to HUVEC stimulated with IL-1b was clearly inhibited by PLM-f74 in a dose-dependent manner by 12.1, 21.2, 50.9, and 78.2%, when U937 cells treated with each of the PLM-f74 and stimulated with PMA (100 mg/L) was added onto untreated and unstimulated HUVECs, adhesion was observed by 15.8, 31.9, 70.8, and 102%, when both cell types were pretreated with PLM-f74, the adhesion was prominently decreased by 83.7, 99.2, 110, and 120.8%, with 0.74, 3.7, 7.4, and 18.5ug/mL of PLM-f74, respectively. PLM-f74, also, reduced IL-1-stimulated HUVEC expression of adhesion molecules, VCAM-1, ICAM-1, and E-selectin dose-dependently by ELISA method.

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동백꽃 추출물의 신생혈관생성 및 세포부착 억제 효과 (Anti-Angiogenic and Anti-Cell Adhesion Effect of the Camellia japonica Flower Extract)

  • 허인도;서효진;김종덕
    • 생명과학회지
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    • 제17권8호통권88호
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    • pp.1152-1156
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    • 2007
  • 본 실험은 동백꽃의 효능을 알아보기 위하여, 동백꽃을 에틸알콜로써 추출한 후 극성이 다른 다양한 유기용매로 분획하여 나온 fraction으로 신생혈관생성 억제, cell cytotoxity, 세포부착분자에 대한 기능을 ELISA, westen blot 등으로 조사하였다. 신생혈관생성 억제 효과는 특히butanol 층에서 70.2%로 가장 높았으며, acetone층이 54.2%, 그리고 ethylacetate층이 37.0%, chloroform층이 21.2%로 유의성 있는 억제효과가 있었다. 특히 동백꽃의 butanol층은 신생혈관생성억제제로서 좋은 효과가 있는 것으로 판단된다. 그리고, 추출물의 농도별로 cell cytotoxity를 조사한 결과 농도가 200 ug/ml 이하에서 세포독성은 나타나지 않았다. Cell adhesion 저해율은 추출물의 농도 200 μg/mL 에서 ICAM-1은 52.9%, VCAM-1은 62.5%, 그리고 E-selectin은 35.7%로 나타났으며 동백꽃의 추출물의 성분 증가에 따라 발현이 감소됨으로써 cell adhesion을 저해하는 것으로 확인되었다. Westen blot 에서 첨가한 동백꽃 추출물의 농도가 높아질수록 신호전달분자의 발현이 약해지는 것을 관찰할 수 있었다. 따라서 신호전달 분자는 동백꽃 추출물에 의해서 신호전달이 차단되며, NF-KB를 억제함으로서 신생혈관생성을 저해하는 것으로 확인되었다. 따라서 동백꽃 추출물은 항암제 및 항비만제제로서 유용할 것으로 판단된다.

이소 생쥐심장이식 모델에서 조기 시간경과에 따른 관상동맥의 면역병리학적인 변화 (Early Time Course of Immunopathologic Changes in Coronary Arteries of Heterotopically Transplanted Mouse Heart)

  • 이정렬;임홍국;서정욱
    • Journal of Chest Surgery
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    • 제31권12호
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    • pp.1119-1126
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    • 1998
  • 배정: 연구자 등은 본 연구에서 가속화된 이식동맥 경화증의 조기 진행경과를 규영하기 위하여 제1분류 주 조직적합성항원(빠IC class 1)의 한지 라만 다른 생쥐 종조합을 이용하여 이소심장이식을 시행하고 이식성장 의 관상동맥에서의 주조직적합성항원(MHC), 세포간부착분자-1(ICAM-l), 혈관세포부착분자-1 (VCAM-l), 인터 루킨-6의 발현 및 조직병리학적 병변의 변화 양상이 이식 후 4주 이내의 조기에 시간 경과에 따라 어떻게 변화하는지를 관찰하였다, 대상 및 방법; 생후 7-10주된 BIO.A 생쥐를 공여심장으로, BIO.BR 생쥐를 피이식 생쥐로 이용하였다. 이식후 피이식생쥐에 면역억제요법은 사용하지 않았으며 군을 7일, 15일, 21일, 30일 등 네 군으로 분류하여 각각 해당되는 날짜에 공여심장과 피이식생쥐의 심장을 적출하였다. 성장조직표본은 면역조직화학법, 현미경적소견, 형태학적 측정법으로 분석하였으며 평가는 중복관찰을 통한 경, 중등, 강의 등 급체계로 반정량적인 방법으로 평가하였다 결과: 제1분류 주조직적합성항원의 발현은 7일 경과 표본에서 이미 강하게 발현되기 시작하였으며 그 후에도 계속 높은 수준으로 유지되었다. 제2분류 주조직적합성항원 의 발현은 모든 군에서 미미하거나 발현이 되지 않았다, 세포간부착분자-1 발현은 7일 경과 표본부터 경도 내지 중등도로 관상동맥내펴세포에서 발현되었으나 혈관중층세포에서의 발현은 관찰되지 않았다. 혈관세포 부착분자-1 발현은 네군 모두에서 헐관내피세포 및 중층세포에서 강하게 발현되었다. 인터루킨-6의 발현은 모든 군에서 중등도로 발현이 되었다. 조직병리학적 소견의 변화양상은 혈관내피세포의 증식을 보이는 혈관 이 7일 경과 표본에서는 관찰혈관 중 평균 10%에서 보이다가 30일 경과 표본에서는 50%의 혈관에서 관찰되었다. 그 결과 혈관 내강의 면적의 감소가 20%에서 40%로 증가하였다. 혈관중층펑활근의 증식여부를 관찰 하기 위한 트로포마이오신 염색의 결과는 적어도 30일까지는 경도 이하로 관찰이 되었으며 중층완전성도 역시 잘 유지되었다. 혈관주변 단핵세포 침윤은 7일 경과 표본에서 중등도 정도로 관찰되다가 이후 점진적으로 증가하는 양상을 보였다. 피이식생쥐의 심장표본에서는 네군 모두에서 연역병리학적인 소견이 전혀 관찰 되지 않았다 결론: 본 연구에서 이소 생쥐심장이식 모델에서 공여심장의 관상동맥에서 발현되는 부착물질 및 싸이토카인 등이 이미 7일 이내의 조기부터 발현되기 시작하는 것을 규명하였으며 혈관내막세포증식, 혈관주변세포침윤 등 조직영리학적인 병변의 진행양상 역시 30일이 경과하는 사이에도 점진적으로 진행하는 양상이라는 사실을 발견하였다. 연구자 등은 연구 결과를 토대로 기속화된 이식동맥 경화증이 급작스런 현상이 아닌 만성적인 면역반응의 결과일 가능성이 높다고 추론하였다.

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Identification of Anti-Angiogenic and Anti-Cell Adhesion Materials from Halophilic Enterobacteria of the Trachurus japonicus

  • Lim, Jong-Kwon;Seo, Hyo-Jin;Kim, Eun-Ok;Meydani, Mohsen;Kim, Jong-Deog
    • Journal of Microbiology and Biotechnology
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    • 제16권10호
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    • pp.1544-1553
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    • 2006
  • The halophilic enterobacteria, Enterobacteria cancerogenus, was isolated from the intestines of the fusiform fish (Trachurus japonicus) to yield a protein-like material termed PLM-f74. PLM-f74 was characterized by strong inhibition ratios to angiogenesis (82.8% at the concentration of $18.5{\mu}g/ml$) and elevated antioxidative capacities with low toxicity. The PLM-f74 is a glycoprotein comprised of saccharides and amino acids. PLM-f74 inhibited cell adhesion that non-activated U937 monocytic cell adhesion to HUVECs activated with $IL-1{\beta}$ by 78.0%, and the adherence of U937 cells treated with the PLM-f74 and stimulated with $IL-1{\beta}$ to unstimulated HUVECs decreased by 102%. When both cell types were pretreated with PLM-f74, the adhesion of U937 cells to $IL-1{\beta}$-stimulated HUVECs was completely suppressed by 121% at a concentration of $18.5{\mu}g/ml$. PLM-f74 blocked signal pathways from VEGFR2, PI3K, ${\beta}$-catenin, and VE-cadherin to NF-kB, based on western bolt analysis. It also inhibited IL-l-stimulated HUVEC expression of the adhesion molecules, ICAM-l by 40%, VCAM-l by 60%, and E-selectin by 70% at the same concentration noted above. New anti-angiogenic and anti-cell adhesion materials showing elevated antioxidative capacities, and non-toxicity may be expected from these results.

우황(牛黃)·웅담(熊膽)·사향(麝香) 복합제제(複合製劑) 약침자극(藥鍼刺戟)이 LPS유발(誘發) 관절염(關節炎)의 면역반응(免疫反應)에 미치는 영향(影響) (The Effect of BUM Aqua-acupuncture on Immune Responses to LPS Induced Arthritis in Mice)

  • 정경연;김갑성;윤종화
    • Journal of Acupuncture Research
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    • 제18권1호
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    • pp.113-128
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    • 2001
  • Objective : To investigate the effect of BUM aqua-acupuncture in treating the RA, the immunosis to logical analysis of LPS induced arthritis in mice to study this. For 14th day after the injection of LPS & BUM injection, the distribution of fibroblast, collagen, CD54(ICAM-1), CD106(VCAM-1), IL-$1{\beta}$, IL-2 receptor, CDl lb(macrophage) were examined on synovial capsule of mice knee joint. For 14th day after the injection of LPS & BUM injection, the distribucion of CD4(TH cell), CD8(TC cell), CD40(B cell) were examined on common iliac lymph node in mice. Methods : The experimental model of arthritis was induced by injection of 300${\mu}g$/kg LPS in BALB/c mice weighing 30g. The 100${\mu}l$ BUM aqua-acupuncture which compounded calculus bovis, fel ursi and moschus was injected into GB34 of mice every other day for 12 days. For 3rd, 7th, 14th day after the injection of LPS, the neutrophil, lymphocyte and monocytc counts in WBC were measured using hemacytometer. Results : The obstain results are summarized as follows ; 1. In sample group, the neutrophils counts were increased and the lympnocytes counts were decreased compared with control group. 2. The distribution of fibrosis & fibroblast on synovial membrane were decreased compared with control group. 3. The distribution of collagen fiber on synovial membrane were decreased compared' with control group. 4. The distribution of CD54(ICAM-1) & CD106(VCAM-1) on synovial membrane were decreased compared with control group. 5. The distribution of IL-$1{\beta}$ & IL-2 receptor on synovial membrane were decreased compared with control group. 6. The distribution of CDb(macrophage) on synovial membrane were decreased compared with control group. 7. The distribution of CD4(TH cell), CD8(TC cell) and CD40(B cell) in common iliac lymph nodes were decreased compared with control group. Conclusions : BUM aqua-acupuncture stimulation decreased inflammatory responses LPS induced arthritis in mice.

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삼황사심탕(三黃瀉心湯)이 수컷 생쥐의 비만(肥滿) 관련 대사질환(代謝疾患)에 미치는 영향 (Effects of Samhwangsasim-tang on obesity-related metabolic disease in mice)

  • 이주영;국윤범
    • 대한한의학방제학회지
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    • 제22권1호
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    • pp.93-104
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    • 2014
  • Objectives : Samhwangsasim-tang (SHSST) is a traditional Korean medication, which has been used in Korea for treatment of hypertension and chest pain. Hyperlipidemia and inflammation could influence hypertension and chest pain. This study investigated whether and how SHSST reduces the hyperlipidemia and inflammation related to high-cholesterol diet-induced obesity in rats. Methods : Mice were divided randomly into four groups: the normal diet group, high-cholesterol diet group, low dose treatment group supplemented with 30% ethanol extract of SHSST (L) and high dose treatment group supplemented with 80% ethanol extract of SHSST (H). L and H groups were orally administered with SHSST at the dose of 50mg/kg a day respectively and others were administered with the same volume of physiological saline. Results : Administration of SHSST resulted in a decrease in serum levels of total cholesterol and low-density lipoprotein. Expression of hepatic genes(SREBP2, LXR, LDLR, and HMG-CoA) related with cholesterol metabolism was also suppressed. In addition, SHSST decreased the expression of inflammation-related gene (TNF-${\alpha}$, IL-6, ICAM-1, VCAM-1, TGF-${\beta}1$ and fibronectin). Histological examinations also showed that the size of the adipocytes was smaller in the SHSST treated group than in the high-colesterol diet group. In an in vitro study, SHSST inhibited the production of nitric oxide in a concentration-dependent manner. Conclusions : This study indicates that SHSST has anti-hyperlipidemia and anti-inflammatory effects. It may also suggest that SHSST may be alternative therapy for treatment of hyperlipidemia and its complications.

Anti-angiogenic, Anti-cell Adhesion Switch from Halophilic Enterobacteria

  • Lim, Jong Kwon;Seo, Hyo Jin;Kim, Eun Ok;Meydani, Mohsen;Kim, Jong Deog
    • 한국해양바이오학회지
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    • 제1권3호
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    • pp.156-162
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    • 2006
  • The halophilic enterobacteria, Enterobacteria cancerogenus, was isolated from the intestines of the fusiform fish (Trachurus japonicus) to yield a protein-like material termed PLM-f74. PLM-f74 was characterized by strong inhibition ratios to angiogenesis (82.8% at the concentration of $18.5{\mu}g/mL$) and elevated antioxidative capacities with low toxicity. The PLM-f74 is a glycoprotein comprised of saccharides and amino acids. PLM-f74 inhibited non-activated U937 monocytic cell adhesion to HUVECs activated with IL-$1{\beta}$ by 78.0%, and the adherence of U937 cells treated with the PLM-f74 and stimulated with IL-$1{\beta}$ to unstimulated HUVECs decreased by 102%. When both cell types were pretreated with PLM-f74, the adhesion of U937 cells to IL-$1{\beta}$ stimulated HUVECs was completely suppressed by 121% at a concentration of 18.5 ug/mL. PLM-f74 blocked signal pathways from VEGFR2, PI3K, ${\beta}$-catenin and VE-cadherin to NF-kB based on western bolt analysis. And also inhibited IL-1-stimulated HUVEC expression of the adhesion molecules, ICAM-1 by 40%, VCAM-1 by 60%, and E-selectin by 70% at the same concentration noted above. New anti-angiogenic and anti-cell adhesion materials showing elevated antioxidative capacities and non-toxicity may be expected from these results.

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혈관내피세포에서 우방자(牛蒡子) 에탄올 추출물의 항염증 효과 (Anti-Inflammatory Effect of Ethanol Extract from the Seeds of Arctium Lappa L. in Vascular Endothelial Cells)

  • 이윤정;윤정주;김혜윰;안유미;홍미현;손찬옥;나세원;이호섭;강대길
    • 대한한방부인과학회지
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    • 제32권3호
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    • pp.20-31
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    • 2019
  • Objectives: The seeds from Arctium lappa have been considered for its various pharmacological properties, which include anti-carcinogenic, anti-inflammatory, anti-diabetic, and anti-viral activities. Methods: In the present study, we investigated the anti-inflammatory effect of the ethanol extract from the seeds of Arctium lappa L (EAL) on cytokine-induced vascular inflammation in human umbilical vein endothelial cells (HUVEC). Results: Pretreatment with EAL significantly decreased tumor necrosis factor alpha ($TNF-{\alpha}$)-induced cell adhesion molecules expression such as intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and endothelial-selectin (E-selectin) in a dose-dependent manner. Cell adhesion assay showed that pretreatment with EAL suppressed HUVEC-monocyte adhesion by $TNF-{\alpha}$ over $1{\mu}g/ml$ concentration. We investigated the involvement of nuclear transcription factor kappa-B ($NF-{\kappa}B$) in $TNF-{\alpha}$-induced vascular inflammation. $NF-{\kappa}B$ p65 nuclear expression was induced by $TNF-{\alpha}$, however, pretreatment with EAL was attenuated that nuclear translocation. In cytoplasm, EAL was also attenuated $TNF-{\alpha}$-induced decrease of inhibitor of ${\kappa}B-{\alpha}$ ($I{\kappa}B-{\alpha}$) expression. Moreover, EAL significantly decreased $TNF-{\alpha}$-induced production of intracellular reactive oxygen species (ROS). Conclusions: Taken together, our findings suggest that seeds of Arctium lappa L could be a therapeutic herb for prevention of cardiovascular diseases throughout the inhibition of vascular endothelial inflammation.

햄프씨드 오일이 고콜레스테롤식이를 급여한 흰쥐의 지질대사에 미치는 영향 (Effect of hemp seed oil on lipid metabolism in rats fed a high-cholesterol diet)

  • 이진아;노성수 ;이우락;신미래
    • Journal of Nutrition and Health
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    • 제56권4호
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    • pp.361-376
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    • 2023
  • 본 연구에서는 햄프씨드 오일이 고콜레스테롤혈증을 개선시키는 지 확인하기 위하여 Sprague-Dawley rat에 1.25% 콜레스테롤식이를 8주 동안 급여하였으며, 햄프씨드 오일을 두 농도 (저농도, 고농도)로 경구 투여한 후 혈액, 조직 분석을 통하여 지질개선 및 염증 완화 효과를 발휘하는지 분석하였다. 햄프씨드 오일 식이는AMPK/SREBP-2 경로를 경유하여 혈중 콜레스테롤의 합성을 효과적으로 억제하였으며, PI3IK/Akt/NF-κB의 경로를 유의하게 억제하여 항염증 효과를 발휘함을 알 수 있었다. 이러한 신호전달의 경로는 간 조직에서 지질축적의 감소와도 관련이 있는 것으로 보인다. 이상의 결과를 종합해보면 햄프씨드 오일은 고콜레스테롤혈증의 예방 및 치료를 위한 잠재적 후보소재로서 가능성이 있음을 시사한다.

한국 성인 여성에서 연령에 따른 혈중 염증 표지자와 심혈관계 질환 위험 요인에 대한 연구 (Age-related Circulating Inflammatory Markers and Cardiovascular Disease Risk Factors in Korean Women)

  • 곽호경;김미정
    • 대한지역사회영양학회지
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    • 제14권4호
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    • pp.451-461
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    • 2009
  • The purpose of this study was to investigate the age-related changes of cardiovascular disease risk factors and inflammatory markers in non-obese Korean women. Subjects were 112 women over 20 years old with body mass index (BMI) less than $30 kg/m^2$ and were divided into 3 groups (< 40 years, $40{\sim}59$ years, ${\ge}60$ years). Mean weight and BMI in the oldest group were significantly higher than those in the other 2 younger groups (p < 0.05). Mean total cholesterol, triglyceride, LDL-cholesterol and apolipoprotein B/apolipoprotein A1 ratio (BAR) in the oldest group were significantly higher than those in the youngest group (p < 0.05), and mean HDL-cholesterol of the oldest group was significantly lower than that of the youngest group (p < 0.05). The older-aged group showed significantly higher mean values of atherogenic index (AI) and LDL/HDL ratio (p < 0.05) than the respective younger-aged group, and AI was significantly correlated with age, nitric oxide and thiobarbituric acid reactive substances (p < 0.01). In addition, mean vascular cell adhesion molecule-l (VCAM-1) tended to be higher in the older-aged group than the younger group. Tumor necrosis factor-${\alpha}$, a proinflammatory maker, was significantly positively correlated with serum homocysteine, a cardiovascular disease risk factor (p < 0.01). In addition, a significantly positive correlation was observed between C-reactive protein and BAR (p < 0.01). Overall results suggested that the aging might affect the increase of cardiovascular disease risk factors including the serum lipid profiles, weight and BMI, and age-related increases of weight and BMI might play a role in changes in certain biomarkers of inflammation. (Korean J Community Nutrition 14(4) : 451${\sim}$461, 2009)