Abstract
Airway epithelial cells are often infected by respiratory syncytial virus (RSV), one of the most common causes of asthma, bronchiolitis, chronic obstructive pulmonary disease, and pneumonia. During the infection process, excessive mucins instigate airway inflammation. However, the mechanism underlying RSV-induced airway hyper-responsiveness and inflammation is poorly understood. Furthermore, no reliable vaccines or drugs for antiviral therapy are available. In this study, the effect of the natural compound grape seed proanthocyanidin (GSP) on RSV-infected human airway epithelial cells A549 was evaluated. After pretreatment of the cells with or without exposure to RSV with 5-10 μg GSP/mL, the expression of various mucins (MUC1, MUC2, MUC5AC, MUC5B, and MUC8) was evaluated by real-time polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blotting, as well as confocal microscopy. We found that GSP significantly decreased RSV-induced mucin synthesis at the mRNA and protein levels. In addition, GSP suppressed the RSV-induced signaling pathways, including extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38, together with nuclear factor kappa B (NF-κB) and activating protein-1 family members (c-Jun and c-Fos). Concomitantly, GSP inhibited the replication of RSV within A549 cells. Taken together, all our results suggest that GSP could be a potent therapeutic agent to suppress excessive mucus production and viral replication in RSV-induced airway inflammatory disorders.
| Original language | English |
|---|---|
| Pages (from-to) | 4472-4483 |
| Number of pages | 12 |
| Journal | Journal of Agricultural and Food Chemistry |
| Volume | 65 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2017 Jun 7 |
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Keywords
- A549 cells
- grape seed proanthocyanidin
- mucin
- respiratory syncytial virus
ASJC Scopus subject areas
- Chemistry(all)
- Agricultural and Biological Sciences(all)
Cite this
Grape Seed Proanthocyanidin Inhibits Mucin Synthesis and Viral Replication by Suppression of AP-1 and NF-κB via p38 MAPKs/JNK Signaling Pathways in Respiratory Syncytial Virus-Infected A549 Cells. / Lee, Jin Woo; Kim, Young Il; Im, Chang Nim; Kim, Sung Wan; Kim, Su Jin; Min, Seoyeon; Joo, Yong Hoon; Yim, Sung Vin; Chung, Namhyun.
In: Journal of Agricultural and Food Chemistry, Vol. 65, No. 22, 07.06.2017, p. 4472-4483.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Grape Seed Proanthocyanidin Inhibits Mucin Synthesis and Viral Replication by Suppression of AP-1 and NF-κB via p38 MAPKs/JNK Signaling Pathways in Respiratory Syncytial Virus-Infected A549 Cells
AU - Lee, Jin Woo
AU - Kim, Young Il
AU - Im, Chang Nim
AU - Kim, Sung Wan
AU - Kim, Su Jin
AU - Min, Seoyeon
AU - Joo, Yong Hoon
AU - Yim, Sung Vin
AU - Chung, Namhyun
PY - 2017/6/7
Y1 - 2017/6/7
N2 - Airway epithelial cells are often infected by respiratory syncytial virus (RSV), one of the most common causes of asthma, bronchiolitis, chronic obstructive pulmonary disease, and pneumonia. During the infection process, excessive mucins instigate airway inflammation. However, the mechanism underlying RSV-induced airway hyper-responsiveness and inflammation is poorly understood. Furthermore, no reliable vaccines or drugs for antiviral therapy are available. In this study, the effect of the natural compound grape seed proanthocyanidin (GSP) on RSV-infected human airway epithelial cells A549 was evaluated. After pretreatment of the cells with or without exposure to RSV with 5-10 μg GSP/mL, the expression of various mucins (MUC1, MUC2, MUC5AC, MUC5B, and MUC8) was evaluated by real-time polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blotting, as well as confocal microscopy. We found that GSP significantly decreased RSV-induced mucin synthesis at the mRNA and protein levels. In addition, GSP suppressed the RSV-induced signaling pathways, including extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38, together with nuclear factor kappa B (NF-κB) and activating protein-1 family members (c-Jun and c-Fos). Concomitantly, GSP inhibited the replication of RSV within A549 cells. Taken together, all our results suggest that GSP could be a potent therapeutic agent to suppress excessive mucus production and viral replication in RSV-induced airway inflammatory disorders.
AB - Airway epithelial cells are often infected by respiratory syncytial virus (RSV), one of the most common causes of asthma, bronchiolitis, chronic obstructive pulmonary disease, and pneumonia. During the infection process, excessive mucins instigate airway inflammation. However, the mechanism underlying RSV-induced airway hyper-responsiveness and inflammation is poorly understood. Furthermore, no reliable vaccines or drugs for antiviral therapy are available. In this study, the effect of the natural compound grape seed proanthocyanidin (GSP) on RSV-infected human airway epithelial cells A549 was evaluated. After pretreatment of the cells with or without exposure to RSV with 5-10 μg GSP/mL, the expression of various mucins (MUC1, MUC2, MUC5AC, MUC5B, and MUC8) was evaluated by real-time polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blotting, as well as confocal microscopy. We found that GSP significantly decreased RSV-induced mucin synthesis at the mRNA and protein levels. In addition, GSP suppressed the RSV-induced signaling pathways, including extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38, together with nuclear factor kappa B (NF-κB) and activating protein-1 family members (c-Jun and c-Fos). Concomitantly, GSP inhibited the replication of RSV within A549 cells. Taken together, all our results suggest that GSP could be a potent therapeutic agent to suppress excessive mucus production and viral replication in RSV-induced airway inflammatory disorders.
KW - A549 cells
KW - grape seed proanthocyanidin
KW - mucin
KW - respiratory syncytial virus
UR - http://www.scopus.com/inward/record.url?scp=85020246001&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85020246001&partnerID=8YFLogxK
U2 - 10.1021/acs.jafc.7b00923
DO - 10.1021/acs.jafc.7b00923
M3 - Article
VL - 65
SP - 4472
EP - 4483
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
SN - 0021-8561
IS - 22
ER -