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Increased brain-derived neurotrophic factor (BDNF) protein concentrations in mice lacking brain serotonin

  • Golo Kronenberg
  • , Valentina Mosienko
  • , Karen Gertz
  • , Natalia Alenina
  • , Rainer Hellweg
  • , Friederike Klempin

Research output: Contribution to journalArticle (Academic Journal)peer-review

29 Citations (Scopus)

Abstract

The interplay between BDNF signaling and the serotonergic system remains incompletely understood. Using a highly sensitive enzyme-linked immunosorbent assay, we studied BDNF concentrations in hippocampus and cortex of two mouse models of altered serotonin signaling: tryptophan hydroxylase (Tph)2-deficient (Tph2 (-/-)) mice lacking brain serotonin and serotonin transporter (SERT)-deficient (SERT(-/-)) mice lacking serotonin re-uptake. Surprisingly, hippocampal BDNF was significantly elevated in Tph2 (-/-) mice, whereas no significant changes were observed in SERT(-/-) mice. Furthermore, BDNF levels were increased in the prefrontal cortex of Tph2 (-/-) but not of SERT(-/-) mice. Our results emphasize the interaction between serotonin signaling and BDNF. Complete lack of brain serotonin induces BDNF expression.

Original languageEnglish
Pages (from-to)281-4
Number of pages4
JournalEuropean Archives of Psychiatry and Clinical Neuroscience
Volume266
Issue number3
DOIs
Publication statusPublished - Apr 2016

Keywords

  • Animals
  • Brain-Derived Neurotrophic Factor/analysis
  • Enzyme-Linked Immunosorbent Assay/methods
  • Hippocampus/chemistry
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Prefrontal Cortex/chemistry
  • Serotonin/deficiency
  • Serotonin Plasma Membrane Transport Proteins/deficiency
  • Tryptophan Hydroxylase/deficiency

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