Mycobiology

The Korean Society of Mycology (한국균학회)
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Cordycepin from Medicinal Fungi Cordyceps militaris Mitigates Inflammaging-Associated Testicular Damage via Regulating NF-κB/MAPKs Signaling in Naturally Aged Rats

  • Kopalli, Spandana Rajendra (Department of Bioscience and Biotechnology, Sejong University) ;
  • Cha, Kyu-Min (D&L Biochem) ;
  • Cho, Jae Youl (Department of Integrative Biotechnology, Sungkyunkwan University) ;
  • Kim, Si-Kwan (Department of Integrated Biosciences, College of Biomedical & Health Science, Konkuk University) ;
  • Koppula, Sushruta (Department of Integrated Biosciences, College of Biomedical & Health Science, Konkuk University)
  • Received : 2021.11.16
  • Accepted : 2022.01.26
  • Published : 2022.02.28
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Abstract

Inflammaging in male reproductive organs covers a wide variety of problems, including sexual dysfunction and infertility. In this study, the beneficial effects of cordycepin (COR), isolated from potential medicinal fungi Cordyceps militaris, in aging-associated testicular inflammation and serum biochemical changes in naturally aged rats were investigated. Male Sprague Dawley rats were divided into young control (YC), aged control (AC), and COR (5, 10, and 20 mg/kg) treated aged rat groups. Aging-associated serum biochemical changes and inflammatory parameters were analyzed by biochemical assay kits, Western blotting, and real-time RT-PCR. Results showed a significant (p < 0.05) alteration in the total blood cell count, lipid metabolism, and liver functional parameters in AC group when compared with YC group. However, COR-treated aged rats ameliorated the altered biochemical parameters significantly (p < 0.05 and p < 0.01 at 5, 10, and 20 mg/kg, respectively). Furthermore, the increase in the expression of inflammatory mediators (COX-2, interleukin (IL)-6, IL-1β, and tissue necrosis factor-alpha) in aged rat testis was significant (p < 0.05) when compared with YC group. Treatment with COR at 20 mg/kg to aged rats attenuated the increased expression of inflammatory mediators significantly (p < 0.05). Mechanistic studies revealed that the potential attenuating effects exhibited by COR in aged rats was mediated by regulation of NF-κB activation and MAPKs (c-Jun N-terminal kinase, extracellular signal-regulated kinase 1/2, and p38) signaling. In conclusion, COR restored the altered serum biochemical parameters in aged rats and ameliorated the aging-associated testicular inflammation proving the therapeutic benefits of COR targeting inflammaging-associated male sexual dysfunctions.

Keywords

Acknowledgement

This work was supported by Konkuk University in the year 2021.

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