Reineckia carnea Alleviates the Production of Inflammatory Cytokines and MUC5AC in Rats with Chronic Obstructive Pulmonary Disease

  • Evid Based Complement Alternat Med. 2022 Jun 16:2022:2135487. doi: 10.1155/2022/2135487.
Wei Liu  1 ,  Jiang Li  2 ,  Tongyao Li  3 ,  Youliang Xie  4 ,  Caihong Luo  5
Affiliations
  • 1. Respiratory Medicine, The Second Affiliated Hospital of Guizhou University of Chinese Medicine, Guiyang, China.
  • 2. Prescription Teaching and Research Office, Guizhou University of Chinese Medicine, Guiyang, China.
  • 3. Respiratory Medicine, Qianxinan Hospital of Traditional Chinese Medicine, Guiyang, China.
  • 4. Department of Internal Medicine, Xiangxiang People's Hospital, Xiangtan, China.
  • 5. Geriatric Respiratory Department, Henan Electric Power Hospital, Zhengzhou, China.
PMID: 35754687 DOI: 10.1155/2022/2135487
Abstract

Background: Reineckia carnea (RC), a perennial evergreen herb which belongs to Reineckia Kunth (Liliaceae), can be used for clearing the lungs and relieving cough, reducing phlegm and anti-inflammatory effects. Moreover, chronic obstructive pulmonary disease (COPD) is characterized by airway and lung inflammation and increased secretion of airway mucus. Therefore, RC has the potential to treat COPD.

Methods: NR8383 cells were cultured and treated with various concentrations of RC (100 mg/mL, 10 mg/mL, 1 mg/mL, 100 μg/mL, 10 μg/mL, 1 μg/mL, 100 ng/mL, and 10 ng/mL). Cell viability and levels of interleukin (IL)-1β, cyclooxygenase-2 (COX-2), and prostaglandin E2 (PGE2) in the Cell Culture supernatant or rat serum were analyzed using CCK-8 and enzyme-linked immunosorbent assay (ELISA), respectively. Sprague Dawley rats were assigned to mock, COPD model, RC (0.67 g/kg, 1.35 g/kg, and 2.7 g/kg), and ambroxol (5.4 mg/kg) groups. Western blot and quantitative polymerase chain reaction (qPCR) analyses were used to evaluate the protein and mRNA expression levels of Mucin 5AC (MUC5AC) and Toll-like Receptor 4 (TLR4).

Results: The results showed that Reineckia carnea (RC) extract (RCE) inhibited the proliferation of NR8383 cells and suppressed the production of IL-1β, PGE2, and COX-2 in NR8383 cells. Moreover, RCE decreased the levels of IL-1β, PGE2, and COX-2 in the serum of rats with COPD and alleviated the expression of TLR4 and MUC5AC induced by COPD in rat lung tissue.

Conclusion: RCE alleviated COPD by inhibiting the expression of COPD-induced inflammatory cytokines and MUC5AC in rats.

Products
Inhibitors & Agonists
Other Products