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KMID : 1240020200240000088
International Neurourology Journal
2020 Volume.24 No. 0 p.88 ~ p.95
Protective Effect of Polydeoxyribonucleotide Against CCl4-Induced Acute Liver Injury in Mice
Lee Seung-Hwan

Won Kyu-Yeoun
Joo Sun-Hyung
Abstract
Purpose: Polydeoxyribonucleotide (PDRN) is a substance known to suppress inflammation and accelerate wound healing. In this experiment, the effect of PDRN treatment on carbon tetrachloride (CCl4)-evoked acute liver injury (ALI) was investigated using mice.

Methods: We analyzed the levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and conducted hematoxylin and eosin staining in accompany with terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling staining. Western blot analysis was also conducted to assess the expressions of tumor necrosis factor (TNF)-¥á, interleukin (IL)-1¥â, IL-6, adenosine A2A receptor, Bcl-2-associated X protein (Bax), and B-cell lymphoma 2 (Bcl-2). The mice were received intraperitoneal injection of 10-mL/kg CCl4, 4 times, once every 2 days. The mice in the PDRN treatment groups received intraperitoneal injection of 200-¥ìL distilled water comprising each concentration of PDRN for 7 days starting 1 day after first CCl4 injection.

Results: ALT and AST concentrations in the serum were reduced and TNF-¥á, IL-1¥â, and IL-6 expressions were decreased by PDRN injection in CCl4-evoked ALI mice. PDRN injection suppressed Bax versus Bcl-2 ratio and reduced the percentage of TUNE-positive cells in CCl4-evoked ALI mice. PDRN injection overexpressed adenosine A2A receptor in CCl4-evoked ALI mice.

Conclusions: The therapeutic efficacy of PDRN also can be expected for CCl4-evoked acute urogenital injury in addition to ALI. The current research suggests that PDRN may be used for the therapeutic agent of CCl4-evoked ALI.
KEYWORD
Acute liver injury, Carbon tetrachloride, Adenosine A2A receptor, Polydeoxyribonucleotide, Proinflammatory cytokines, Apoptosis
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