BDNF pro-peptide: a novel synaptic modulator generated as an N-terminal fragment from the BDNF precursor by proteolytic processing.

BDNF pro-peptide: a novel synaptic modulator generated as an N-terminal fragment from the BDNF precursor by proteolytic processing.
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DOI:
10.4103/1673-5374.211173
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发表时间:
2017-07
影响因子:
6.1
通讯作者:
Kojima M
Kojima M
中科院分区:
医学2区
文献类型:
--
作者:
Mizui T;Ohira K;Kojima M

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大多数生长因子最初是作为前体合成的,并且被切割成具有生物活性的成熟结构域和前结构域。然而,与成熟结构域的表达和功能相比,前结构域的生物学作用知之甚少。我们意外地发现脑源性神经营养因子(brain-derived neurotrophic factor,BDNF)的前结构域(pro-domain,pro-peptide)具有促进海马长时程抑郁的潜在能力。此外,BDNF的Val 66 Met多态性,即在66个氨基酸处由缬氨酸取代为蛋氨酸,影响BDNF前肽的生物活性。最后,我们讨论了BDNF及其前肽在神经干细胞生成和缺血进展中的可能作用。
Most growth factors are initially synthesized as precursors and it was cleaved into bioactive mature domain and pro-domain. However, compared with the expression and function of bioactive mature domain, the biological role of the pro-domain is poorly understood. Unexpectedly, we found that the pro-domain (or pro-peptide) of brain-derived neurotrophic factor (BDNF), which is well-known neurotrophic factor in brain, has a potential ability to facilitate hippocampal long-term depression. Furthermore, a BDNF polymorphism Val66Met, which substitute valine into methionine at 66 amino acid, impacted the biological activity of the BDNF pro-peptide. We lastly discuss the possible roles of BDNF and its pro-peptide in the generation of neural stem cells and progress of ischemia.
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