Potential anti-obesity effects of a long-acting cocaine hydrolase

Xirong Zheng, Jing Deng, Ting Zhang, Jianzhuang Yao, Fang Zheng, Chang Guo Zhan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A long-acting cocaine hydrolase, known as CocH3-Fc(M3), engineered from human butyrylcholinesterase (BChE) was tested, in this study, for its potential anti-obesity effects. Mice on a high-fat diet gained significantly less body weight when treated weekly with 1 mg/kg CocH3-Fc(M3) compared to control mice, though their food intake was similar. There is no correlation between the average body weight and the average food intake, which is consistent with the previously reported observation in BChE knockout mice. In addition, molecular modeling was carried out to understand how ghrelin binds with CocH3, showing that ghrelin binds with CocH3 in a similar mode as ghrelin binding with wild-type human BChE. The similar binding structures explains why CocH3 and BChE have similar catalytic activity against ghrelin.

Original languageEnglish
Pages (from-to)99-103
Number of pages5
JournalChemico-Biological Interactions
StatePublished - Nov 25 2016

Bibliographical note

Funding Information:
This work was supported in part by the National Institutes of Health through the NIDA Translational Avant-Garde Award ( UH2 DA041115 ) and R01 grants ( R01 DA035552 , R01 DA032910 , R01 DA013930 , and R01 DA025100 ) and the National Science Foundation through grant CHE-1111761 . The authors also acknowledge the Computer Center at University of Kentucky for supercomputing time on a Dell X-series Cluster with 384 nodes or 4768 processors.

Publisher Copyright:
© 2016 Elsevier Ireland Ltd


  • Appetite control
  • Cocaine hydrolase
  • Enzyme
  • Hormone
  • Obesity

ASJC Scopus subject areas

  • Toxicology


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