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Lee SE, Park HR, Jeon S, Han D, Park YS. Curcumin Attenuates Acrolein-induced COX-2 Expression and Prostaglandin Production in Human Umbilical Vein Endothelial Cells. J Lipid Atheroscler 2020; 9:184-194. [PMID: 32821730 PMCID: PMC7379064 DOI: 10.12997/jla.2020.9.1.184] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 12/19/2022] Open
Abstract
Objective Inflammation is crucial to limiting vascular disease. Previously we reported that acrolein, a known toxin in tobacco smoke, might play an important role in the progression of atherosclerosis via an inflammatory response involving cyclooxygenase-2 (COX-2) and prostaglandin production in human umbilical vein endothelial cells (HUVECs). Curcumin has been known to improve vascular function and have anti-inflammatory properties. In this study, we investigated whether curcumin prevents the induction of inflammatory response caused by acrolein. Methods Anti-inflammatory effects of curcumin were examined in acrolein-stimulated HUVECs. Induction of proteins, mRNA, prostaglandin and reactive oxygen species (ROS) were measured using immunoblot analysis, real-time reverse-transcription polymerase chain reaction, enzyme-linked immunosorbent assay and flow cytometry, respectively. Results Curcumin attenuates inflammatory response via inhibition of COX-2 expression and prostaglandin production in acrolein-induced human endothelial cells. This inhibition by curcumin results in the abolition of phosphorylation of protein kinase C, p38 mitogen-activated protein kinase, and cAMP response element-binding protein. Furthermore, curcumin suppresses the production of ROS and endoplasmic reticulum stress via phosphorylation of eukaryotic initiation factor-2α caused by acrolein. Conclusion These results suggest that curcumin might be a useful agent against endothelial dysfunction caused by acrolein-induced inflammatory response.
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Affiliation(s)
- Seung Eun Lee
- Department of Microbiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Hye Rim Park
- Department of Microbiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Seeun Jeon
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Korea
| | - Dongkyo Han
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Korea
| | - Yong Seek Park
- Department of Microbiology, College of Medicine, Kyung Hee University, Seoul, Korea
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Autophagy in Crotonaldehyde-Induced Endothelial Toxicity. Molecules 2019; 24:molecules24061137. [PMID: 30901980 PMCID: PMC6471975 DOI: 10.3390/molecules24061137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/18/2019] [Accepted: 03/20/2019] [Indexed: 11/16/2022] Open
Abstract
Crotonaldehyde is an extremely toxic α,β-unsaturated aldehyde found in cigarette smoke, and it causes inflammation and vascular dysfunction. Autophagy has been reported to play a key role in the pathogenesis of vascular diseases. However, the precise mechanism underlying the role of acute exposure crotonaldehyde in vascular disease development remains unclear. In the present study, we aimed to investigate the effect of crotonaldehyde-induced autophagy in endothelial cells. Acute exposure to crotonaldehyde decreased cell viability and induced autophagy followed by cell death. In addition, inhibiting the autophagic flux markedly promoted the viability of endothelial cells exposed to high concentrations of crotonaldehyde. Crotonaldehyde activated the AMP-activated protein kinase (AMPK) and p38 mitogen-activated protein kinase (MAPK) pathways, and pretreatment with inhibitors specific to these kinases showed autophagy inhibition and partial improvement in cell viability. These data show that acute exposure to high concentrations of crotonaldehyde induces autophagy-mediated cell death. These results might be helpful to elucidate the mechanisms underlying crotonaldehyde toxicity in the vascular system and contribute to environmental risk assessment.
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Jin S, Lee MY. Kaempferia parviflora Extract as a Potential Anti-Acne Agent with Anti-Inflammatory, Sebostatic and Anti- Propionibacterium acnes Activity. Int J Mol Sci 2018; 19:ijms19113457. [PMID: 30400322 PMCID: PMC6274695 DOI: 10.3390/ijms19113457] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/29/2018] [Accepted: 10/31/2018] [Indexed: 01/10/2023] Open
Abstract
Kaempferia parviflora, referred to as black ginger, has traditionally been used as a health-promoting alternative medicine. In this study, we examined the anti-inflammatory, sebostatic, and anti-Propionibacterium acnes activities of K. parviflora extract. The extract significantly down-regulated the expression of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2), and pro-inflammatory cytokine tumor necrosis factor alpha (TNF-α) level. Moreover, the phosphorylation of IĸBα and nuclear factor-kappa B (NF-κB), and the enhanced nuclear translocation of NF-κB p65 in lipopolysaccharide-stimulated murine macrophage-like cell line (RAW 264.7) cells were markedly decreased by the extract. Notably, the main component of K. parviflora, 5,7-dimethoxyflavone, also modulated the expression of iNOS and NF-κB signal molecules in P. acnes-stimulated human keratinocyte (HaCaT) cells. Additionally, K. parviflora extract inhibited the lipogenesis of sebocytes, as evidenced by a reduced level of triglyceride and lipid accumulation in the sebocytes. The sebostatic effect was also confirmed by a reduced expression of peroxisome proliferation-activating receptors (PPAR-γ) and oil-red O staining in sebocytes. Taken together, this study suggests for the first time that K. parviflora extract could be developed as a potential natural anti-acne agent with anti-inflammatory, sebostatic, and anti-P. acnes activity.
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Affiliation(s)
- Solee Jin
- Department of Medical Science, College of Medical Science, SoonChunHyang University, 22 SoonChunHyang-ro, Asan, Chungnam 31538, Korea.
| | - Mi-Young Lee
- Department of Medical Science, College of Medical Science, SoonChunHyang University, 22 SoonChunHyang-ro, Asan, Chungnam 31538, Korea.
- Department of Medical Biotechnology, College of Medical Science, SoonChunHyang University, 22 SoonChunHyang-ro, Asan, Chungnam 31538, Korea.
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Lee IS, Cho DH, Kim KS, Kim KH, Park J, Kim Y, Jung JH, Kim K, Jung HJ, Jang HJ. Anti-inflammatory effects of embelin in A549 cells and human asthmatic airway epithelial tissues. Immunopharmacol Immunotoxicol 2018; 40:83-90. [PMID: 29299941 DOI: 10.1080/08923973.2017.1414836] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Allergic asthma is the most common type in asthma, which is defined as a chronic inflammatory disease of the lung. In this study, we investigated whether embelin (Emb), the major component of Ardisia japonica BL. (AJB), exhibits anti-inflammatory effects on allergic asthma via inhibition of NF-κB activity using A549 cells and asthmatic airway epithelial tissues. METHODS Inflammation was induced in A549 cells, a human airway epithelial cell line, by IL-1β (10 ng/ml) treatment for 4 h. The effects of Emb on NF-κB activity and COX-2 protein expression in inflamed airway epithelial cells and human asthmatic airway epithelial tissues were analyzed via western blot. The secretion levels of NF-κB-mediated cytokines/chemokines, including IL-4, 6, 9, 13, TNF-α and eotaxin, were measured by a multiplex assay. RESULTS Emb significantly blocked NF-κB activity in IL-1β-treated A549 cells and human asthmatic airway epithelial tissues. COX-2 expression was also reduced in both IL-1β-treated A549 cells and asthmatic tissues Emb application. Emb significantly reduced the secretion of IL-4, IL-6 and eotaxin in human asthmatic airway epithelial tissues by inhibiting activity of NF-κB. CONCLUSIONS The results of this study suggest that Emb may be used as an anti-inflammatory agent via inhibition of NF-κB and related cytokines.
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Affiliation(s)
- In-Seung Lee
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea.,b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Dong-Hyuk Cho
- b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea.,c Department of Biological Sciences in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Ki-Suk Kim
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea
| | - Kang-Hoon Kim
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea.,b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Jiyoung Park
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea.,b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Yumi Kim
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea.,b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Ji Hoon Jung
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea
| | - Kwanil Kim
- b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea.,c Department of Biological Sciences in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Hee-Jae Jung
- b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea.,c Department of Biological Sciences in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
| | - Hyeung-Jin Jang
- a College of Korean Medicine , Kyung Hee University , Seoul , Republic of Korea.,b Department of Science in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea.,c Department of Biological Sciences in Korean Medicine , Graduate School, Kyung Hee University , Seoul , Republic of Korea
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