• 제목/요약/키워드: E-Selectin

검색결과 50건 처리시간 0.032초

The whole wheat effect and refined with E-selectin polymorphism on breast cancer

  • Zakariya, Bilal Fadil;Almohaidi, Asmaa M. Salih;Simsek, Secil Akilli;Kamal, Areege Mustafa;Al-Dabbagh, Wijdan H.;Al-Waysi, Safaa A.
    • 분석과학
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    • 제35권4호
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    • pp.161-168
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    • 2022
  • Wheat is rich in sources of fiber, oligosaccharides, and resistant starch, simple carbohydrates which may have a protective role against carcinoma. Additionally, Whole wheat/bran as well includes contains phytochemicals such as flavonoids, lignans, folate, phytosterols, phenolic acids, and tocols. The above phytochemicals suitable forms antioxidant and cholesterol-reducing activities. Phytoestrogens are regarded as especially essential in the preventative measures of hormonally dependent malignancies such as breast cancer (BC). In this study lowered BC risk has been associated with whole grain/bran consumption with an odds ratio (OR=0.24 and 95 %CI=0.10-0.56). Wheat/bran appears to have a reliable protective impact against BC. While intake of white bread has been associated with a high risk of BC (OR=2.63 and CI 95 %=1.07-6.48). Also, the E-Selectin (SELE) Single nucleotide polymorphisms (SNPs) rs5353 A/G and rs932307 C/T were investigated using the sanger sequences approach. There was a positive association between genotypes (rs5353 GG+AG) and (rs932307 TT+CT) with rate consumption of wheat-white/bread and these genotypes were more frequent in patients had BC in comparison with a significant difference (P=0.03) (P=0.01), respectively. The genotypes (GG+AG) frequency of the rs5353 polymorphism and (TT+CT) genotypes of the rs932307 polymorphism in the present study had a high risk of cancer with (OR=3.05), (OR=4.17) respectively. While these genotypes showed no significant association with the rate of whole grain consumption in patients and control. Therefore, the type of wheat may associate with increased incidence of disease-related with type of Polymorphism because some present genotypes of SNPs showed high (OR) which may refer to their positive associated with disease, the white wheat consumption may active the risky association between SNPs and BC.

Fusobacterium nucleatum GroEL signaling via Toll-like receptor 4 in human microvascular endothelial cells

  • Lee, Hae-Ri;Choi, Bong-Kyu
    • International Journal of Oral Biology
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    • 제37권3호
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    • pp.130-136
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    • 2012
  • The GroEL heat-shock protein from Fusobacterium nucleatum, a periodontopathogen, activates risk factors for atherosclerosis in human microvascular endothelial cells (HMEC-1) and ApoE-/- mice. In this study, we analyzed the signaling pathways by which F. nucleatum GroEL induces the proinflammatory factors in HMEC-1 cells known to be risk factors associated with the development of atherosclerosis and identified the cellular receptor used by GroEL. The MAPK and NF-${\kappa}B$ signaling pathways were found to be activated by GroEL to induce the expression of interleukin-8 (IL-8), monocyte chemoattractant protein 1 (MCP-1), intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), E-selectin, and tissue factor (TF). These effects were inhibited by a TLR4 knockdown. Our results thus indicate that TLR4 is a key receptor that mediates the interaction of F. nucleatum GroEL with HMEC-1 cells and subsequently induces an inflammatory response via the MAPK and NF-${\kappa}B$ pathways.

혈관내피세포에서 TNF-$\alpha$ 자극에 의해 유도되는 혈관염증에 대한 WK-38의 억제 효과 (Inhibitory Effect of WK-38 on TNF-$\alpha$ Induced Vascular Inflammation in Human Umbilical Vein Endothelial Cells)

  • 황선미;이윤정;김은주;윤정주;이혁;강대길;이호섭
    • 동의생리병리학회지
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    • 제23권5호
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    • pp.1132-1138
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    • 2009
  • Vascular inflammation is an important event in the development of vascular diseases such as tumor progression and atherosclerosis. This study was to investigate the inhibitory effects of WK-38, a new herbal prescription for the treatment of atherosclerosis, on vascular inflammation in human umbilical vein endothelial cells (HUVEC). WK-38 is composed of Rhei Rhizoma, Magonoliae Cortex, Moutan Cortez Radicis. Pretreatment with WK-38 was significantly blocked TNF-$\alpha$-induced expression level of cell adhesion molecules such as vascular cell adhesion molecule-1 (VCAM-1), intracellular adhesion molecule-1 (ICAM-1), and endothelial cell selectin (E-selectin) in a dose-dependent manner. TNF-$\alpha$-induced cell adhesion in co-cultured U937 and HUVEC was also blocked by pretreatment with WK-38. Moreover, WK-38 significantly suppressed p65 NF-${\kappa}B$ translocation into the nucleus by TNF-$\alpha$ as well as the phosphorylation and degradation of $I{\kappa}B-{\alpha}$. In conclusion, the present data suggested that WK-38 could suppress TNF-$\alpha$-induced vascular inflammatory process, though inhibition of NF-${\kappa}B$ activation in HUVEC.

Extract of Curcuma zedoaria R. prevents atherosclerosis in apolipoprotein E-deficient mice

  • Kim, Ki Mo;Lee, Joo Young;Jeon, Byeong Hwa;Quan, Khong Trong;Na, MinKyun;Nam, Kung-Woo;Chae, Sungwook
    • Nutrition Research and Practice
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    • 제15권3호
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    • pp.319-328
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    • 2021
  • BACKGROUND/OBJECTIVES: Curcuma zedoaria R. (Zingiberaceae) has been used to treat headache, fever, and hypertension-related symptoms in Asian countries, including Korea, China, and Japan. We investigated whether dietary intake of a C. zedoaria extract (CzE) affected atherosclerosis in vivo. MATERIALS/METHODS: Apolipoprotein E-deficient (ApoE-/-) mice (n = 32) were fed a normal diet (ND), a high-cholesterol diet (HCD), an HCD containing CzE (100 mg/kg/day), or an HCD containing simvastatin (10 mg/kg/day) for 12 weeks. The anti-atherosclerotic effects were evaluated by observing changes in fatty streak lesions, immunohistochemical analysis, ex vivo fluorescence imaging, lipid profiles, and western blot analysis. RESULTS: The CzE-fed group showed a 41.6% reduction of atherosclerosis. Furthermore, CzE significantly reduced the levels of serum triglyceride, high-density lipoprotein, the chemokine (C-X3-C-motif ) ligand 1, the adhesion molecules vascular cell adhesion molecule-1, intracellular adhesion molecule-1, and E-selectin; down-regulation of tumor necrosis factor-α, interleukin-6, high mobility group box-1, and cathepsin levels in the aortic sinuses and aortas of ApoE-/- mice were also observed. CONCLUSIONS: The results suggest that the inclusion of a water extract of C. zedoaria in a HCD is closely correlated with reducing the risk of vascular inflammatory diseases in an ApoE mouse model.

Antioxidant and Anti-inflammatory Activities of Allium victorialis subsp. platyphyllum Extracts

  • Lee, Je-Hyuk;Choi, Soo-Im;Lee, Yong-Soo;Kim, Gun-Hee
    • Food Science and Biotechnology
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    • 제16권5호
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    • pp.796-801
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    • 2007
  • This study was conducted to investigate antioxidant activity and anti-immunological inflammatory effect of Allium victorialis subsp. platyphyllum extracts (AVPEs). Antioxidant activities of AVPEs were determined by free radical scavenging assay and reducing power test. Leaf-part extract had comparatively better antioxidant activity than other-part extracts. Antioxidant activity of extracts had protective effect for human umbilical vein endothelial cells (HUVECs) against superoxide anions secreted from activated neutrophils. Also, we observed AVPEs had inhibitory effects on the adherence of monocytic THP-1 to HUVEC monolayer to the basal level. Inhibitory effect on cell adhesion was caused by suppression of tumor necrosis factor-${\alpha}\;(TNF-{\alpha})-upregulated$ expression of vascular cellular adhesion molecule-1 (VCAM-1) and E-selectin in HUVECs. From these results, we expect to support the evidence of anti-immunological inflammatory effects of Allium victorialis subsp. platyphyllum (AVP) as a Korean traditional pharmaceutical.

신생혈관형성억제작용을 기반으로 한 항비만제제의 선별 및 작용기전 (Selection and Mechanism of Anti-Obesity Agents from Natural Products Based on Anti-Angiogenesis)

  • 신진혁;이진희;강경완;황재호;한경호;신태선;김민용;김종덕
    • KSBB Journal
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    • 제24권2호
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    • pp.122-130
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    • 2009
  • 선별한 신생혈관형성억제제는 EGCG보다도 제어 효과가 나은 천연산물들 중에서 전호, 파고지, 희첨 및 중심으로 그 기전을 밝히고자 하였다. 세포독성은 전호는 0.3 ppm에서 약간의 독성을 나타내었고, 파고지는 10 ppm까지는 독성을 나타내지 않았으며, 희첨 및 산수유는 25 ppm까지 독성을 나타내지 않았다. 세포부착억제작용은 신생혈관의 형성에 중요한 역할을 하기 때문에 cell adhesion 분자인 VCAM-1, ICAM-1 및 E-selectin들에 대하여 ELISA 법으로 살펴보았다. VCAM-1에 대한 천연산물의 작용은 전호 (0.2 ppm, 125%)>파고지 (0.5 ppm, 100%)>희첨 (5.0 ppm, 114%)> 산수유 (5.0 ppm, 111.8%)의 순으로 저해의 강도가 높으며, ICAM-1은 전호 (0.25 ppm, 130%)>파고지 (0.5 ppm, 100%)>희첨 (5.0 ppm, 138%)>산수유 (5.0 ppm, 66.7%)의 순으로 저해되는 것으로 나타났고, 그리고 E-Selectin은 전호 (0.25 ppm, 100%)> 파고지 (1.0 ppm, 128%)>희첨 (5.0 ppm, 120%)>산수유 (5.0 ppm, 100.7%)의 순으로 저해되는 것으로 나타났다. Western blot으로부터, 전호 추출물은 VE-cadherin과 ${\beta}$-catenin의 신호전달을 억제하였으며, 그 하위 신호 전달분자인 Akt도 억제하는 것으로 나타났고, 파고지는 ${\beta}$-catenin의 신호는 억제하지 않는 것으로 보이나, 그 하위그룹의 Akt의 신호전달을 억제하는 것으로 나타났다. 그리고, 희첨은 VE-Cadherin과 하위 그룹의 Akt를 농도의 증가에 따라 확실한 제어를 보이고 있음을 알 수 있었고, 산수유는 하위그룹의 Akt의 신호전달을 억제하는 것으로 나타났다. 4종류의 선택된 천연산물은 세포표면의 신호전달분자 그리고 그 하위 그룹의 Akt를 억제함으로써 NF-kB의 활성을 차단함으로써 신생혈관의 형성을 억제하는 것으로 판단된다. 따라서 4종류의 천연산물 전호, 파고지, 희첨 및 산수유는 전반적으로 낮은 농도에서 세포부착인자의 발현을 억제하였고, 신호전달 분자들을 억제함으로써 신생혈관 형성 억제에 따른 항비만제제로서 충분한 가능성을 보였다.

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.

동백잎 추출물의 신생혈관 및 세포부착 억제작용과 그 기전 (Anti-angiogenic and Anti-cell Adhesion Effects and Their Mechanism with the Extract of Camellia japonica Leaf)

  • 송민규;서효진;문제학;박근형;김종덕
    • KSBB Journal
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    • 제22권4호
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    • pp.249-254
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    • 2007
  • 동백잎의 열수 추출물이 신생혈관 생성억제 효과가 강하게 나타남으로써 이들 추출물에 대한 독성 시험을 HUVECs를 사용하여 검토한 바는 200 ug/mL에서도 독성이 없는 것으로 나타났으며, 1.5, 3.0, 15 및 30 ug/mL으로 농도가 증가함에 따라 각각 30.7%, 38.5%, 53.8% 그리고 70.0%의 신생혈관 생성억제율을 보였다. 세포부착 저해효과는 C. japonica leaf (CJL)의 농도가 50, 100, $200{\mu}g{/well}$으로 증가할 때 E-selectin이 46.7%, 66.7% 그리고 86.76%, VCAM-1이 23.0%, 61.5% 그리고 84.6%, ICAM-1이 11.0%, 55.5% 그리고 88.8%로 나타났다. C. japonica leaf (CJL)의 성분 증가에 따라 발현이 감소되는 것을 보아 농도가 증가함에 따라 cell adhesion의 저해 효과가 높아짐을 알 수 있었다. 신호전달의 기전규명은 western blot으로 행하였으며 CJL의 농도가 증가함에 따라 밴드의 발현이 약해지는 것을 관찰할 수 있다. 따라서 신호전달 분자인 VEGFR-2, $\beta$-catenin, Pl3-K는 CJL에 의해 신호전달이 차단되는 것을 볼 수 있고, 이는 NF-${\kappa}$B를 억제함으로서 신생혈관 생성을 저해하는 것으로 확인되었다. 따라서 동백잎은 신생혈관 생성에 의존하고 있는 것으로 알려진 암 등의 치료와 암전이의 억제, 류마치스성 관절염, 그리고 항비만제제로서 개발될 수 있음을 시사한다.

사람의 피부상피세포에서 황색포도상구균의 독소인자인 Staphylococcal Protein A의 염증반응 촉진효과 (Stimulatory Effect of Staphylococcal Protein A on Inflammatory Response in Human HaCaT Keratinocytes)

  • 권현진;김연정;장성희;배보경;윤화영;이희우
    • 미생물학회지
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    • 제47권4호
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    • pp.348-355
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    • 2011
  • 황색포도상구균은 사람에게서 염증을 동반한 다양한 형태의 국소적 또는 전신적 감염을 일으키는 주요 병원균이며, 황색포도상구균에서 풍부하게 발현되는 Staphylococcal protein A (SPA)는 염증의 활성화나 면역 반응의 회피와 관련된 균력인자로서 작용할 수 있다. 본 연구에서는 사람의 HaCaT 피부상피세포에서 재조합 SPA 단백질을 이용하여 염증반응에 대한 효과를 조사하기 위해서 pET-28a 발현벡터시스템을 이용하여 성공적으로 재조합 SPA 단백질을 제작하였고, 이 단백질(2 ${\mu}g$/ml)을 6, 12 및 24시간 처리한 HaCaT 피부상피세포에서 RT-PCR 및 ELISA를 이용하여 염증관련 부착인자 및 사이토카인의 발현을 분석하였다. SPA 처리 후 6시간에서 24시간까지 E-selectin, ICAM-1, MCP-1, IL-6 및 IL-8의 발현이 현저하게 증가함을 확인하였다. 또한 SPA는 HaCaT 피부상피세포에 대한 U937 단핵구의 부착력을 증진시켰다. 따라서, 본 연구의 결과는 SPA가 HaCaT 피부상피세포의 염증반응을 촉진시킨다는 사실을 보여주었으며, 황색포도상구균에 의한 피부염증질환에 있어서 중요한 병원성인자로서의 역할을 수행한다는 사실을 시사해준다.

Gamma-aminobutyric acid-salt attenuated high cholesterol/high salt diet induced hypertension in mice

  • Son, Myeongjoo;Oh, Seyeon;Lee, Hye Sun;Choi, Junwon;Lee, Bae-Jin;Park, Joung-Hyun;Park, Chul Hyun;Son, Kuk Hui;Byun, Kyunghee
    • The Korean Journal of Physiology and Pharmacology
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    • 제25권1호
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    • pp.27-38
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    • 2021
  • Excessive salt intake induces hypertension, but several gamma-aminobutyric acid (GABA) supplements have been shown to reduce blood pressure. GABA-salt, a fermented salt by L. brevis BJ20 containing GABA was prepared through the post-fermentation with refined salt and the fermented GABA extract. We evaluated the effect of GABA-salt on hypertension in a high salt, high cholesterol diet induced mouse model. We analyzed type 1 macrophage (M1) polarization, the expression of M1 related cytokines, GABA receptor expression, endothelial cell (EC) dysfunction, vascular smooth muscle cell (VSMC) proliferation, and medial thicknesses in mice model. GABA-salt attenuated diet-induced blood pressure increases, M1 polarization, and TNF-α and inducible nitric oxide synthase (NOS) levels in mouse aortas, and in salt treated macrophages in vitro. Furthermore, GABA-salt induced higher GABAB receptor and endothelial NOS (eNOS) and eNOS phosphorylation levels than those observed in salt treated ECs. In addition, GABA-salt attenuated EC dysfunction by decreasing the levels of adhesion molecules (E-selectin, Intercellular Adhesion Molecule-1 [ICAM-1], vascular cell adhesion molecule-1 [VCAM-1]) and of von Willebrand Factor and reduced EC death. GABA-salt also reduced diet-induced reductions in the levels of eNOS, phosphorylated eNOS, VSMC proliferation and medial thickening in mouse aortic tissues, and attenuated Endothelin-1 levels in salt treated VSMCs. In summary, GABA-salt reduced high salt, high cholesterol diet induced hypertension in our mouse model by reducing M1 polarization, EC dysfunction, and VSMC proliferation.