Abstract:
:Dopamine (DA), a catecholamine neurotransmitter, is known to for its diverse roles on hematopoiesis, yet its function in thrombopoiesis remains poorly understood. This study shows that DA stimulation can directly induce platelet production from megakaryocytes (MKs) in the final stages of thrombopoiesis via a reactive oxygen species (ROS)-dependent pathway. The mechanism was suggested by the results that DA treatment could significantly elevate the ROS levels in MKs, and time-dependently activate oxidative stress-mediated signaling, including p38 mitogen-activated protein kinase, c-Jun NH2-terminal kinase, and caspase-3 signaling pathways, while the antioxidants N-acetylcysteine and L-glutathione could effectively inhibit the activation of these signaling pathways, as well as the ROS increase and platelet production triggered by DA. Therefore, our data revealed that the direct role and mechanism of DA in thrombopoiesis, which provides new insights into the function recognition of DA in hematopoiesis.
journal_name
Plateletsjournal_title
Plateletsauthors
Chen S,Hu M,Shen M,Xu Y,Wang C,Wang X,Li F,Zeng D,Chen F,Zhao G,Chen M,Wang F,Cheng T,Su Y,Zhao J,Wang S,Wang Jdoi
10.1080/09537104.2017.1356451subject
Has Abstractpub_date
2018-11-01 00:00:00pages
702-708issue
7eissn
0953-7104issn
1369-1635journal_volume
29pub_type
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