Abstract:
:Physical activity is a strong positive physiological modulator of adult neurogenesis in the hippocampal dentate gyrus. Although the underlying regulatory mechanisms are still unknown, systemic processes must be involved. Here we show that platelets are activated after acute periods of running, and that activated platelets promote neurogenesis, an effect that is likely mediated by platelet factor 4. Ex vivo, the beneficial effects of activated platelets and platelet factor 4 on neural precursor cells were dentate gyrus specific and not observed in the subventricular zone. Moreover, the depletion of circulating platelets in mice abolished the running-induced increase in precursor cell proliferation in the dentate gyrus following exercise. These findings demonstrate that platelets and their released factors can modulate adult neural precursor cells under physiological conditions and provide an intriguing link between running-induced platelet activation and the modulation of neurogenesis after exercise.
journal_name
Stem Cell Reportsjournal_title
Stem cell reportsauthors
Leiter O,Seidemann S,Overall RW,Ramasz B,Rund N,Schallenberg S,Grinenko T,Wielockx B,Kempermann G,Walker TLdoi
10.1016/j.stemcr.2019.02.009subject
Has Abstractpub_date
2019-04-09 00:00:00pages
667-679issue
4issn
2213-6711pii
S2213-6711(19)30057-8journal_volume
12pub_type
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