期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 14, 页码 -出版社
MDPI
DOI: 10.3390/ijms23147726
关键词
brain-derived neurotrophic factor; aging; Alzheimer's disease; intracellular signaling; exercise
资金
- JSPS KAKENHI from the Ministry of Education, Culture, Sports, Science, and Technology of Japan [20K06857, 19K16263, 22K15660]
- Takeda Science Foundation
Neurotrophins play crucial roles in supporting neuronal survival, synaptic plasticity, and neurogenesis in the nervous system. The decline of cognitive function with aging and/or pathological conditions is associated with alterations in BDNF/TrkB signaling. Upregulation of the endogenous BDNF/TrkB system may be a potential therapeutic approach for cognitive decline.
Neurotrophins are a family of secreted proteins expressed in the peripheral nervous system and the central nervous system that support neuronal survival, synaptic plasticity, and neurogenesis. Brain-derived neurotrophic factor (BDNF) and its high affinity receptor TrkB are highly expressed in the cortical and hippocampal areas and play an essential role in learning and memory. The decline of cognitive function with aging is a major risk factor for cognitive diseases such as Alzheimer's disease. Therefore, an alteration of BDNF/TrkB signaling with aging and/or pathological conditions has been indicated as a potential mechanism of cognitive decline. In this review, we summarize the cellular function of neurotrophin signaling and review the current evidence indicating a pathological role of neurotrophin signaling, especially of BDNF/TrkB signaling, in the cognitive decline in aging and age-related cognitive diseases. We also review the therapeutic approach for cognitive decline by the upregulation of the endogenous BDNF/TrkB-system.
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