Why Some Mice Are Smarter Than Others: The Impact of Bone Morphogenetic Protein Signaling on Cognition

Jacqueline A. Bonds*, Elif Tunc-Ozcan, Sara R. Dunlop, Radhika Rawat, Chian Yu Peng, John A. Kessler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Inbred mice (C57B1/6) display wide variability in performance on hippocampal-dependent cognitive tasks. Examination of micro-dissected dentate gyrus (DG) after cognitive testing showed a highly significant negative correlation between levels of bone morphometric protein (BMP) signaling and recognition memory. Cognitive performance decline during the aging process, and the degree of cognitive decline is strongly correlated with aging-related increases in BMP signaling. Further, cognitive performance was impaired when the BMP inhibitor, noggin, was knocked down in the DG. Infusion of noggin into the lateral ventricles enhanced DG- dependent cognition while BMP4 infusion led to significant impairments. Embryonic overexpression of noggin resulted in lifelong enhancement of recognition and spatial memory while overexpression of BMP4 resulted in lifelong impairment, substantiating the importance of differences in BMP signaling in wildtype mice. These findings indicate that performance in DG- dependent cognitive tasks is largely determined by differences in levels BMP signaling in the dentate gyrus.

Original languageEnglish (US)
Article numberENEURO.0213-22.2022
JournaleNeuro
Volume10
Issue number1
DOIs
StatePublished - Jan 2023

Keywords

  • Bone morphogenetic Protein (BMP)
  • Noggin
  • Novel Object Recognition (NOR) Cognition

ASJC Scopus subject areas

  • General Neuroscience

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