Journal of Jilin University(Medicine Edition) ›› 2022, Vol. 48 ›› Issue (2): 308-316.doi: 10.13481/j.1671-587X.20220206

• Research in basic medicine • Previous Articles     Next Articles

Detection of serum protein changes in rabbit model poisoned by Trimeresurus stejnegeri snake venom based on proteomics and its significance

Weilian YANG1,Shijun WANG1(),Fanghua SHEN1,Yong ZHANG1,Fuwei CHEN1,Qiuxiang SU2,Chao SHI2,Qinyao YU2,Tao CHEN2   

  1. 1.Department of Snake Injury,Affiliated People’s Hospital,Fujian University of Traditional Chinese Medicine,Fuzhou 350004,China
    2.Graduate School,Fujian University of Traditional Chinese Medicine,Fuzhou 350122,China
  • Received:2021-08-10 Online:2022-03-28 Published:2022-05-10
  • Contact: Shijun WANG E-mail:466580303@qq.com

Abstract: Objective

To investigate the expression of serum proteins of the snake venom model of Trimeresurus stejnegeri, and to reveal the expressions of marker proteins in the process of poisoning.

Methods

Twelve Japanese big ear rabbits, male or female, were randomly divided into sham operation group and model group, with 6 rabbits in each group. The rabbits in model group were given intramuscular injection of 20 mg·kg-1Trimeresurus stejnegeri snake venom, and the rabbits in sham operation group were given the same volume of normal saline injection; four hours later, the rabbits in two groups were anesthetized with sodium pentobarbital,the blood samples were obtained from the hearts of rabbits, and the blood serum was isolated. The differential proteins in serum of the rabbits in two groups were analyzed by tandem mass tag(TMT) combined with high performance liquid chromatography-tandem mass spectrometry (HPLC-TMS) quantitative proteomics technology. The biological changes of the differential proteins were analyzed by Proteome Discover 2.4 and other databases.

Results

The sham operation group and the experimental group were divided into two distinct clusters of differential proteins on the coordinate diagram of PCA analysis. A total of 199 differential proteins were identified and analyzed, including 139 up-regulated proteins; the top 5 up-regulated proteins were troponin I type 2,fast skeletal muscle(TNNI2), parvalbum alpha(PV), enolase2(ENO2),myoglobin(MB) and creatine kinase(CK);there were 60 down-regulated proteins;the top 5 down-regulated proteins were apolipoprotein C1(APOC1),cinggulin(CGN), proprotein invertase Bacillus subtilis proteinase 9(PCSK9) and transfer cobalamin protein 1(TCN1).The differential proteins involved in the extracellular regulatory function were the most, followed by calcium ion regulation protein and degradation regulation proteins.

Conclusion

The expression levels of antigen processing and presentation function-related proteins change significantly during the process of infection of Trimeresurus stejnegeri venom, and CK and solute carrier fannily 16 member1(SLC16A1) could be used as candidate targets of post-infection injury.

Key words: Trimeresurus stejnegeri venom, TJMT labeled quantitative proteomics, Serum differentially expressed proteins, Creatine kinase, Solute carrier family 16 member 1

CLC Number: 

  • R994