Comparison of response to LPS-induced sepsis in three DBA/2 stocks derived from different sources
10.1186/s42826-020-00079-5
- Author:
Ji Won PARK
1
;
Su Jin LEE
;
Ji Eun KIM
;
Mi Ju KANG
;
Su Ji BAE
;
Yun Ju CHOI
;
Jeong Eun GONG
;
Kil Soo KIM
;
Young-Suk JUNG
;
Joon-Yong CHO
;
Yeon Shik CHOI
;
Dae Youn HWANG
;
Hyun Keun SONG
Author Information
1. Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, Pusan National University, Miryang, South Korea
- Publication Type:R E S E A R C H
- From:Laboratory Animal Research
2021;37(1):44-52
- CountryRepublic of Korea
- Language:English
-
Abstract:
Sepsis, one of the most fatal diseases in the world, is known to culminate in multiple organ failure due to an uncontrolled inflammatory response. Hence, the use of animal models in sepsis research is very important to study complex immune responses. The current study was undertaken to compare commercial stocks with KFDA stocks of DBA/2 mice as an animal model for sepsis study. To compare responses of DBA/2 mice to lipopolysaccharides (LPS)-induced sepsis, we measured altered characteristics of various factors associated with sepsis, including survival curves, organ failure and inflammatory response, in DBA/2Korl stock and two commercial stocks (DBA/2A and DBA/ 2B). Survival rates after LPS exposure were similar for DBA/2Korl and DBA/2B; however, for times over 20 h, survival rates were reduced and concentration dependent in DBA/2A. In order to evaluate multiple organ failure caused by sepsis, H&E stains were evaluated for liver and spleen tissues obtained in the early (2 h) and later (20 h) stages after exposure to LPS; no significant differences were observed between the three stocks. mRNA and protein levels of proinflammatory cytokines were assessed for evaluating inflammatory reactions, and were found to increase in a dose-dependent manner in most DBA/2 mice after LPS treatment. However, no changes were observed in the mRNA levels of proinflammatory cytokines at 20 h after LPS exposure in the DBA/2A stock. The induction of inflammation-mediated factors by LPS exposure did not induce alterations in the mRNA levels of COX-2 and iNOS in all three DBA/2 stocks. Our results indicate that response of DBA/2Korl to LPS-induced sepsis is similar to the two commercial DBA/2 stocks, thus representing its potential as a useful biological resource established in Korea.
