T-cell deficiency induces deficits in social behavior and dyslipidemia in mice.

Shohei Asami, Yumi Tsutsui, Sachiko Yamamoto, Michio Miyajima

Biochemical and biophysical research communications 2023 Mar 12

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Patients with neuropsychiatric disorders often exhibit an altered metabolic status. However, the underlying factors that induce behavioral and metabolic dysfunctions remain poorly understood. Therefore, we investigated whether behavioral and metabolic alterations could be induced in immunodeficient conditions. We found that T-cell-deficient Cd3e-/- mice exhibit deficits in social behavior associated with dyslipidemia. Cd3e-/- mice exhibited abnormal social novelty preference, but normal anxiety-like behavior. We also detected decreases in the concentrations of plasma triglyceride and the lipid transporter molecule fatty acid-binding protein 2. Furthermore, the adoptive transfer of T-cells to Cd3e-/- mice ameliorated the deficits in social behavior and recovered plasma triglyceride concentration. Thus, we found that T-cell disruption can induce defects in social behavior and systemic lipid homeostasis in mice. Given these findings, we believe that Cd3e-/- mice represent a useful tool for investigating the mechanisms of causal relationships among immune dysfunction, behavior, and metabolism. Copyright © 2023 Elsevier Inc. All rights reserved.

Citation

Shohei Asami, Yumi Tsutsui, Sachiko Yamamoto, Michio Miyajima. T-cell deficiency induces deficits in social behavior and dyslipidemia in mice. Biochemical and biophysical research communications. 2023 Mar 12;648:81-86