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Generation of LEPR Knockout Rabbits with CRISPR/CAS9 System.

Yu Yu Silaeva1, P D Safonova2, D V Popov3

  • 1Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia.

Doklady Biological Sciences : Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
|August 30, 2024
PubMed
Summary
This summary is machine-generated.

Researchers created a leptin receptor (LEPR) knockout rabbit using CRISPR/Cas9. This new model exhibits higher body weight, aiding the study of obesity and related endocrine disorders.

Keywords:
LEPRCRISPR/Cas9genetically modified rabbitleptin

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Area of Science:

  • Genetics and Genomics
  • Metabolic Disorders
  • Animal Models

Background:

  • The leptin receptor (LEPR) gene is crucial for regulating body weight and metabolism.
  • Mutations in LEPR are linked to morbid obesity and metabolic dysfunction in humans.
  • Rabbits are a relevant model for human obesity due to metabolic similarities.

Purpose of the Study:

  • To generate a LEPR knockout rabbit model using CRISPR/Cas9.
  • To establish a relevant animal model for studying human obesity and leptin receptor mutations.
  • To investigate the role of LEPR in metabolic regulation in rabbits.

Main Methods:

  • CRISPR/Cas9 gene editing was employed to create a deletion in the LEPR gene, specifically targeting exon 10.
  • The generated LEPR knockout rabbit was characterized and compared to wild-type rabbits.
  • Phenotypic analysis focused on body weight and indicators of metabolic dysregulation.

Main Results:

  • A LEPR knockout rabbit was successfully generated via CRISPR/Cas9-mediated gene editing.
  • The LEPR knockout rabbit demonstrated significantly higher body weight compared to wild-type controls.
  • This confirms the role of LEPR in weight regulation in rabbits.

Conclusions:

  • CRISPR/Cas9-mediated generation of LEPR knockout rabbits provides a novel animal model.
  • This model is suitable for studying morbid obesity and endocrine defects associated with leptin receptor mutations.
  • The LEPR knockout rabbit advances research into human metabolic diseases.