Male RORγt-transgenic mice exhibit lower body weight and an altered locomotor response to a novel environment
- 1Laboratory of Anatomy and Neuroscience, Department of Biomedical Sciences, Institute of Medicine, University of Tsukuba
Abstract
ROR{gamma}t, encoded by Rorc, is a key transcriptional regulator of T helper 17 (Th17) cell differentiation, and IL-17A signaling has been implicated in neural development and behavior. We examined behavioral phenotypes in male ROR{gamma}t-transgenic mice with T-cell-biased ROR{gamma}t overexpression and their wild-type littermates. Mice were assessed using the resident-intruder paradigm and the light-dark box test, followed by body-weight measurement. ROR{gamma}t-transgenic mice had significantly lower body weight than wild-type mice. No genotype differences were detected in attack latency, attack frequency, light-compartment occupancy, light-dark transitions, or transition latency. In contrast, analysis of locomotor activity in 1-min bins revealed a significant genotype x time interaction. Transgenic mice showed nominally reduced locomotor activity during the first minute of the light-dark box test, although this single-bin comparison did not remain significant after correction for multiple comparisons. These findings indicate that T-cell-biased ROR{gamma}t overexpression is associated with altered temporal dynamics of locomotor activity in a novel environment rather than a generalized anxiety-like or aggression-related phenotype.
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BibTeX
@misc{sasaki2026male,
title = {{Male RORγt-transgenic mice exhibit lower body weight and an altered locomotor response to a novel environment}},
author = {T. Sasaki and A. Takahashi and Y. Takei},
howpublished = {bioRxiv},
year = {2026},
month = aug,
doi = {10.64898/2026.08.31.748441},
url = {https://www.biorxiv.org/content/10.64898/2026.08.31.748441v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Male RORγt-transgenic mice exhibit lower body weight and an altered locomotor response to a novel environment
AU - T. Sasaki
AU - A. Takahashi
AU - Y. Takei
PY - 2026
DA - 2026/08/31
PB - bioRxiv
DO - 10.64898/2026.08.31.748441
UR - https://www.biorxiv.org/content/10.64898/2026.08.31.748441v1
AB - ROR{gamma}t, encoded by Rorc, is a key transcriptional regulator of T helper 17 (Th17) cell differentiation, and IL-17A signaling has been implicated in neural development and behavior. We examined behavioral phenotypes in male ROR{gamma}t-transgenic mice with T-cell-biased ROR{gamma}t overexpression and their wild-type littermates. Mice were assessed using the resident-intruder paradigm and the light-dark box test, followed by body-weight measurement. ROR{gamma}t-transgenic mice had significantly lower body weight than wild-type mice. No genotype differences were detected in attack latency, attack frequency, light-compartment occupancy, light-dark transitions, or transition latency. In contrast, analysis of locomotor activity in 1-min bins revealed a significant genotype x time interaction. Transgenic mice showed nominally reduced locomotor activity during the first minute of the light-dark box test, although this single-bin comparison did not remain significant after correction for multiple comparisons. These findings indicate that T-cell-biased ROR{gamma}t overexpression is associated with altered temporal dynamics of locomotor activity in a novel environment rather than a generalized anxiety-like or aggression-related phenotype.
ER -