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  3. Gene Expression Alterations Of Purinergic Signaling Components In Obesity-associated Intestinal Low-grade Inflammation In Type 2 Diabetes.
  1. Home
  3. Gene Expression Alterations Of Purinergic Signaling Components In Obesity-associated Intestinal Low-grade Inflammation In Type 2 Diabetes.

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Gene expression alterations of purinergic signaling components in obesity-associated intestinal low-grade

José R Cruz-Muñoz1, Eduardo E Valdez-Morales1, Alma Barajas-Espinosa2

  • 1Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Ags, México.

Purinergic Signalling
|April 8, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

High-fat diets promote gut inflammation linked to obesity and type 2 diabetes (T2D). This study reveals altered purinergic signaling in the colon of mice with diet-induced obesity and T2D, suggesting new therapeutic targets.

Keywords:
Cafeteria dietEctonucleotidasesIntestinal low-grade inflammationObesityPurinergic receptorsType 2 diabetes

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Area of Science:

  • Gastroenterology
  • Metabolic Diseases
  • Immunology

Background:

  • Obesity and type 2 diabetes (T2D) are linked to chronic systemic inflammation, often initiated by low-grade intestinal inflammation from high-fat diets.
  • Purinergic signaling pathways are implicated in gastrointestinal diseases, but their role in obesity- and T2D-related gut inflammation is unclear.

Purpose of the Study:

  • To investigate the role of purinergic signaling components in the colon during diet-induced obesity and T2D.
  • To identify potential therapeutic targets for metabolic complications associated with these conditions.

Main Methods:

  • C57BL/6J mice were fed a high-fat cafeteria diet for 21 weeks, with streptozotocin injection at week 6.
  • Gene expression of purinergic signaling components in colon tissue was analyzed using RT-qPCR.

Main Results:

  • Mice on the high-fat diet showed reduced colonic length and thickness, with increased NF-κB and IL-1β mRNA.
  • Colonic expression of P2X2, P2X7, and A3R genes decreased, while P2Y2, NT5E, and ADA gene expression increased.

Conclusions:

  • Altered expression of specific purinergic signaling components is associated with intestinal inflammation in obesity and T2D.
  • These purinergic signaling pathways represent potential novel therapeutic targets for managing metabolic diseases.