Journal of Capital Medical University ›› 2023, Vol. 44 ›› Issue (1): 13-19.doi: 10.3969/j.issn.1006-7795.2023.01.003

• Clinical Epidemiology and Clinical Trials • Previous Articles     Next Articles

Relationship between carboxylesterase 1 and carboxylesterase 2 gene expression levels and body mass index, and gene polymorphism analysis

Zhang Jianxiong1, Li Dandan2, Hu Mengmeng2, Cheng Xuewei2, Dong Ruihua1*   

  1. 1. Research Ward, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China;
    2. Clinical Pharmacology Laboratory, Affiliated Hospital Academy of Military Medical Sciences, Beijing 100071, China
  • Received:2022-10-18 Online:2023-02-21 Published:2023-01-13
  • Contact: *E-mail:Ruihua_dong_rw@163.com
  • Supported by:
    National Novel Drug Innovation Program of China, National Health Commission (2018ZX09711003-014-001), Research Foundation of Beijing Friendship Hospital, Capital Medical University (yyqdkt2019-34).

Abstract: Objective To explore the role of carboxylesterase 1(CES1) and carboxylesterase 2 (CES2) in metabolism by detecting gene polymorphisms and gene expression levels ofCES1 and CES2 in healthy volunteers. Methods The DNA was extracted from peripheral blood lymphocytes of 48 volunteers with written consent, and total genomic DNA was sequenced using a target sequencing strategy. The total RNA was extracted to determine gene expression levels. The multiple linear regression was used to analyze the relationship between CES1 and CES2 gene expression and sex, age and body mass index (BMI). Results The expression level of CES1 and CES2 was 141.8 (72.7, 237.8) and 74.4 (30.8, 133.6), respectively. The multiple linear regression analyses indicated that BMI (β = -28.83, P=0.048) had a significant effect on the expression level of CES2. Age, sex, or BMI were not associated with the expression level of CES1. The sequence variants were identified, and 10 of a total of 20 sequence variants of CES1 caused a change in the CES1 amino acid sequence and two of a total of six sequence variants of CES2 caused a change in the CES2 amino acid sequence. Conclusion In this study, we found that the expression level of CES2 was correlated with BMI, while the expression level of CES1 was not significantly correlated with BMI. The results of gene prediction suggested that the genetic variation of CES1 might affect its functional expression.

Key words: carboxylesterase, gene polymorphism, gene expression level, body mass index

CLC Number: