Increasing Adiponectin Signaling by Sub-Chronic AdipoRon Treatment Elicits Antidepressant- and Anxiolytic-Like Effects Independent of Changes in Hippocampal Plasticity.
Douglas Affonso FormoloThomas Ho-Yin LeeJiasui YuKangguang LinGang ChenGeorg S KranzSuk-Yu YauPublished in: Biomedicines (2023)
(1) Background: Adiponectin is an adipocyte-secreted hormone that has antidepressant- and anxiolytic-like effects in preclinical studies. Here, we investigated the antidepressant- and anxiolytic-like effects of sub-chronic treatment with AdipoRon, an adiponectin receptor agonist, and its potential linkage to changes in hippocampal adult neurogenesis and synaptic plasticity. (2) Methods: Different cohorts of wild-type C57BL/6J and CamKIIα-Cre male mice were treated with sub-chronic (7 days) AdipoRon, followed by behavioral, molecular, and electrophysiological experiments. (3) Results: 7-day AdipoRon treatment elicited antidepressant- and anxiolytic-like effects but did not affect hippocampal neurogenesis. AdipoRon treatment reduced hippocampal brain-derived neurotrophic factor (BDNF) levels, neuronal activation in the ventral dentate gyrus, and long-term potentiation of the perforant path. The knockdown of N-methyl-D-aspartate (NMDA) receptor subunits GluN2A and GluN2B in the ventral hippocampus did not affect the antidepressant- and anxiolytic-like effects of AdipoRon. (4) Conclusions: Increasing adiponectin signaling through sub-chronic AdipoRon treatment results in antidepressant- and anxiolytic-like effects independent of changes in hippocampal structural and synaptic function.
Keyphrases
- major depressive disorder
- cerebral ischemia
- metabolic syndrome
- insulin resistance
- stem cells
- spinal cord
- adipose tissue
- gene expression
- mesenchymal stem cells
- type diabetes
- mass spectrometry
- deep brain stimulation
- wild type
- combination therapy
- replacement therapy
- blood brain barrier
- spinal cord injury
- hepatitis c virus
- cognitive impairment
- subarachnoid hemorrhage
- cell therapy
- men who have sex with men
- hiv testing
- temporal lobe epilepsy
- prefrontal cortex