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논문 기본 정보

자료유형
학위논문
저자정보

김민정 (경북대학교, 경북대학교 대학원)

지도교수
정성근.
발행연도
2020
저작권
경북대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (2)

초록· 키워드

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Erythorbyl laurate (EL) can be produced via lipase-catalyzed esterification between erythorbic acid and lauric acid. In this study, we evaluate the anti-inflammatory effect of EL in the early stage of atherosclerosis. EL suppressed tumor necrosis factor (TNF)-α-induced monocyte adhesion to vascular endothelial cells and expression of vascular cell adhesion molecule (VCAM)-1 in human umbilical vein endothelial cells (HUVECs). Additionally, EL suppressed TNF-α-induced p65/IκB kinase (IKK)/IκB phosphorylation in HUVECs. Western blot analysis of cytosolic and nuclear cell fractions and immunofluorescence showed that EL suppressed TNF-α-induced translocation of p65 from the cytoplasm to the nucleus. EL also inhibited phosphorylation of extracellular-signal-regulated kinase (ERK) 1/2, p38, and c-Jun N-terminal kinases (JNK) 1/2 in HUVECs. EL suppressed TNF-α-induced phosphorylation of Akt, IRAK1, and TAK1 in HUVECs. Quantitative RT-PCR analysis showed that EL significantly suppressed TNF-α-induced interleukin (IL)-1B, IL6, TNFA, and CCL2 mRNA expression in HUVECs. Additionally, oral administration of EL suppressed TNF-α-induced IL6 and TNFA expression in the mouse aorta. EL could represent a promising functional nutrient that can be ingested for the prevention of vascular inflammation via decreased monocyte infiltration to the vascular endothelium and suppression of inflammatory nuclear factor (NF)-κB and mitogen-activated protein kinases (MAPKs) signaling pathways.

목차

Ⅰ. Introduction 1
Ⅱ. Materials and Methods 3
2.1. Materials 3
2.2. Procedure for lipase-catalysed esterification 3
2.3. Cell culture 4
2.4. Monocyteendothelial cell adhesion assay 5
2.5. NF-κB promoter assay 5
2.6. Western blot assay 6
2.7. Cytoplasmic and nuclear fractionation 7
2.8. Total RNA isolation and quantitative real-time reverse transcriptionpolymerase chain reaction (qRTPCR) analysis 7
2.9. Animals and experiments design 8
2.10. Immunofluorescence analysis in mouse aorta 9
2.11. Statistical analysis 10
Ⅲ. Results 11
3.1. Erythorbyl laurate inhibits TNF-α-induced monocyte adhesion capacity and VCAM-1 expression 11
3.2. EL inhibits TNF-α-induced NF-κB activity, NF-κB signaling pathways, and p65 translocation in HUVECs 14
3.3. EL inhibits TNF-α-induced phosphorylation of MAPKs, Akt, IRAK1, TAK1 in HUVECs 17
3.4. EL inhibits TNF-α-induced expression of inflammatory cytokines 19
3.5. EL inhibits TNF-α-induced monocyte infiltration into the aortic root and expression of inflammatory cytokines in the aorta 21
Ⅳ. Discussion 24
Ⅴ. Conclusion 28
Ⅵ. References 29
국문 초록(Korean Abstract) 32

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