Abstract

Polydeoxyribonucleotide (PDRN) is an agonist that selectively stimulates adenosine A2A receptor (ADORA2A), which suppresses inflammatory responses. Ischemia/reperfusion (I/R) injury plays a major role in the pathogenesis of ischemic stroke by inducing neuroinflammation. Therefore, this study aimed to investigate the therapeutic effects of PDRN in an in vitro I/R injury model. The in vitro model was established with differentiated Neuro-2a cells under oxygen and glucose deprivation condition. The cells were treated with PDRN for 24 h under reoxygenation condition. As the results of RNA-seq transcriptome analysis, CSF1, IL-6, PTPN6, RAC2, and STAT1 were identified of its relation to the effect of PDRN on inflammatory responses in the model. To further investigate therapeutic effects of PDRN, RT-qPCR, western blotting, LDH assay, and TUNEL assay were performed. PDRN significantly reversed the expression of genes and proteins related to inflammatory responses. The elevated ADORA2A expression by PDRN treatment downregulated JAK/STAT pathway in the model. Furthermore, PDRN inhibited neuronal cell death in the model. Consequently, our results suggested that PDRN alleviated inflammatory responses through inhibition of JAK/STAT pathway by mediating ADORA2A expression and inhibited neuronal cell death in the model. These results provide significant insights into potential therapeutic approaches involving PDRN treatment for I/R injury.

Details

Title
Therapeutic effects of polydeoxyribonucleotide in an in vitro neuronal model of ischemia/reperfusion injury
Author
Jo, Seongmoon 1 ; Baek, Ahreum 2 ; Cho, Yoonhee 3 ; Kim, Sung Hoon 4 ; Baek, Dawoon 2 ; Hwang, Jihye 5 ; Cho, Sung-Rae 6 ; Kim, Hyun Jung 7 

 Yonsei University College of Medicine, Department and Research Institute of Rehabilitation Medicine, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454); Yonsei University College of Medicine, Brain Korea 21 PLUS Project for Medical Science, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Yonsei University College of Medicine, Department and Research Institute of Rehabilitation Medicine, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454); Yonsei University Wonju College of Medicine, Department of Rehabilitation Medicine, Wonju, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Yonsei University College of Medicine, Department of Medicine, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Yonsei University Wonju College of Medicine, Department of Rehabilitation Medicine, Wonju, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Yonsei University College of Medicine, Department and Research Institute of Rehabilitation Medicine, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Yonsei University College of Medicine, Department and Research Institute of Rehabilitation Medicine, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454); Yonsei University College of Medicine, Brain Korea 21 PLUS Project for Medical Science, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454); Yonsei University College of Medicine, Graduate Program of Biomedical Engineering, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454); Yonsei University College of Medicine, Rehabilitation Institute of Neuromuscular Disease, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454) 
 Eulji University School of Medicine, Department of Rehabilitation Medicine, Nowon Eulji Medical Center, Seoul, South Korea (GRID:grid.255588.7) (ISNI:0000 0004 1798 4296) 
Pages
6004
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2799931583
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.