2. Academic Validation
  3. Meloxicam Alleviates Oxidative Stress Through Nrf2/HO-1 Activation in Bovine Endometrial Epithelial Cells

Meloxicam Alleviates Oxidative Stress Through Nrf2/HO-1 Activation in Bovine Endometrial Epithelial Cells

  • Vet Sci. 2025 Jun 12;12(6):579. doi: 10.3390/vetsci12060579.
Luying Cui 1 2 3,  Jiangyao Duan 1 2 3,  Peng Mao 1 2 3,  Jingyi Zhong 1 2 3,  Sasa He 1 2 3,  Junsheng Dong 1 2 3,  Kangjun Liu 1 2 3,  Long Guo 1 2 3,  Jianji Li 1 2 3,  Heng Wang 1 2 3
Affiliations

Affiliations

  • 1 College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
  • 2 International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China.
  • 3 Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou 225009, China.
PMID: 40559816 DOI: 10.3390/vetsci12060579
Abstract

Meloxicam has been identified as an Adjuvant therapeutic component in the management of bovine uterine diseases, exhibiting anti-inflammatory and antioxidant effects. However, the mechanisms underlying its antioxidant actions in the context of bovine uterine diseases remain incompletely understood. The objective of this research was to determine whether meloxicam exerts its antioxidant effects through the Nrf2/HO-1 signaling pathway. By employing N-acetylcysteine (NAC), a scavenger of Reactive Oxygen Species (ROS), along with inhibitors directed against heme oxygenase-1 (HO-1) or nuclear factor erythroid 2-related factor 2 (Nrf2), we investigated the dynamic changes in oxidative stress markers (ROS and malondialdehyde) and antioxidant indices (comprising catalase, superoxide dismutase, and glutathione), as well as the expression profiles of Nrf2 and inflammation-associated genes and proteins in bovine endometrial epithelial cells (BEECs) subjected to lipopolysaccharide (LPS) stimulation. As a result, meloxicam alleviated the LPS-induced elevation of oxidative stress marker levels and the reduction in antioxidant enzyme activities and antioxidant substance contents in BEECs. Compared to NAC, meloxicam demonstrated superior efficacy in activating the Nrf2 pathway, with the promotion of NRF2 expression (~1.6-fold) and nuclear translocation. The pretreatment of cells with HO-1 or Nrf2 inhibitors markedly attenuated the antioxidant activity of meloxicam. In summary, meloxicam primarily alleviates LPS-induced oxidative stress through the activation of the Nrf2/HO-1 pathway in BEECs.

Keywords

Nrf2/HO-1 activation; antioxidation; bovine endometrial epithelial cells; meloxicam.

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