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Cited 87 time in webofscience Cited 87 time in scopus
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Dasatinib regulates LPS-induced microglial and astrocytic neuroinflammatory responses by inhibiting AKT/STAT3 signaling

Authors
Ryu, Ka-YoungLee, Hyun-JuWoo, HanwoongKang, Ri-JinHan, Kyung-MinPark, HyunHeeLee, Sang MinLee, Ju-YoungJeong, Yoo JooNam, Hyun-WookNam, YoungpyoHoe, Hyang-Sook
Issue Date
Oct-2019
Publisher
BMC
Keywords
LPS; Neuroinflammation; STAT3; AKT; Microglia; Astrocytes
Citation
JOURNAL OF NEUROINFLAMMATION, v.16, no.1
Journal Title
JOURNAL OF NEUROINFLAMMATION
Volume
16
Number
1
URI
http://scholarworks.bwise.kr/kbri/handle/2023.sw.kbri/669
DOI
10.1186/s12974-019-1561-x
ISSN
1742-2094
Abstract
Background The FDA-approved small-molecule drug dasatinib is currently used as a treatment for chronic myeloid leukemia (CML). However, the effects of dasatinib on microglial and/or astrocytic neuroinflammatory responses and its mechanism of action have not been studied in detail. Methods BV2 microglial cells, primary astrocytes, or primary microglial cells were treated with dasatinib (100 or 250 nM) or vehicle (1% DMSO) for 30 min or 2 h followed by lipopolysaccharide (LPS; 200 ng/ml or 1 mu g/ml) or PBS for 5.5 h. RT-PCR, real-time PCR; immunocytochemistry; subcellular fractionation; and immunohistochemistry were subsequently conducted to determine the effects of dasatinib on LPS-induced neuroinflammation. In addition, wild-type mice were injected with dasatinib (20 mg/kg, intraperitoneally (i.p.) daily for 4 days or 20 mg/kg, orally administered (p.o.) daily for 4 days or 2 weeks) or vehicle (4% DMSO + 30% polyethylene glycol (PEG) + 5% Tween 80), followed by injection with LPS (10 mg/kg, i.p.) or PBS. Then, immunohistochemistry was performed, and plasma IL-6, IL-1 beta, and TNF-alpha levels were analyzed by ELISA. Results Dasatinib regulates LPS-induced proinflammatory cytokine and anti-inflammatory cytokine levels in BV2 microglial cells, primary microglial cells, and primary astrocytes. In BV2 microglial cells, dasatinib regulates LPS-induced proinflammatory cytokine levels by regulating TLR4/AKT and/or TLR4/ERK signaling. In addition, intraperitoneal injection and oral administration of dasatinib suppress LPS-induced microglial/astrocyte activation, proinflammatory cytokine levels (including brain and plasma levels), and neutrophil rolling in the brains of wild-type mice. Conclusions Our results suggest that dasatinib modulates LPS-induced microglial and astrocytic activation, proinflammatory cytokine levels, and neutrophil rolling in the brain.
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