Mouse adenovirus type 1 infection of adipose tissue

Area of Science:

• Virology
• Immunology
• Metabolic disease research

Background:

• Human adenovirus type 36 (HAdV-36) seropositivity is linked to human obesity.
• Previous studies suggest a potential role for adenoviruses in obesity, but evidence is limited.
• Animal models are crucial for investigating adenovirus-induced obesity mechanisms.

Purpose of the Study:

• To investigate if mouse adenovirus type 1 (MAV-1) infects adipose tissue.
• To determine if MAV-1 infection is associated with adipose tissue inflammation and obesity in mice.
• To assess the long-term effects of MAV-1 infection on adipose tissue and body weight.

Main Methods:

• Mice were infected with mouse adenovirus type 1 (MAV-1).
• Adipose tissue was analyzed for MAV-1 presence during acute and later infection stages.
• Cytokine expression and histological examinations were performed to assess adipose tissue inflammation.
• Body weight and adipose tissue mass were monitored over time.

Main Results:

• MAV-1 was detected in adipose tissue during acute infection.
• No virus-induced increases in adipose tissue cytokine expression or inflammation were observed during acute infection.
• MAV-1 did not persist in adipose tissue long-term.
• No long-term adipose inflammation, increased adipose tissue mass, or body weight gain was detected in infected mice.

Conclusions:

• Mouse adenovirus type 1 (MAV-1) infects adipose tissue but does not induce inflammation or obesity in mice.
• The findings suggest that MAV-1 is not associated with obesity development in this animal model.
• Further research is needed to understand the complex relationship between adenoviruses and metabolic diseases.