Generation and characterization of conditional heparin-binding EGF-like growth factor knockout mice

Atsushi Oyagi, Yasuhisa Oida, Kenichi Kakefuda, Masamitsu Shimazawa, Norifumi Shioda, Shigeki Moriguchi, Kiyoyuki Kitaichi, Daisuke Nanba, Kazumasa Yamaguchi, Yasuhide Furuta, Koji Fukunaga, Shigeki Higashiyama, Hideaki Hara

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31 Citations (Scopus)


Recently, neurotrophic factors and cytokines have been shown to be associated in psychiatric disorders, such as schizophrenia, bipolar disorder, and depression. Heparin-binding epidermal growth factor-like growth factor (HB-EGF) is a member of the EGF family, serves as a neurotrophic molecular and plays a significant role in the brain. We generated mice in which HB-EGF activity is disrupted specifically in the ventral forebrain. These knockout mice showed (a) behavioral abnormalities similar to those described in psychiatric disorders, which were ameliorated by typical or atypical antipsychotics, (b) altered dopamine and serotonin levels in the brain, (c) decreases in spine density in neurons of the prefrontal cortex, (d) reductions in the protein levels of the NR1 subunit of the N-methyl-D-aspartate (NMDA) receptor and post-synaptic protein-95 (PSD-95), (e) decreases in the EGF receptor, and in the calcium/calmodulin-dependent protein kinase II (CaMK II) signal cascade. These results suggest the alterations affecting HB-EGF signaling could comprise a contributing factor in psychiatric disorder.

Original languageEnglish
Article numbere7461
JournalPloS one
Issue number10
Publication statusPublished - 2009 Oct 14

ASJC Scopus subject areas

  • General


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