10.6084/M9.FIGSHARE.14515427
Feihong Zhu
Feihong
Zhu
Hehe Chen
Hehe
Chen
Meifei Xu
Meifei
Xu
Xiajun Zhang
Xiajun
Zhang
Jing Yu
Jing
Yu
Yali Pan
Yali
Pan
Weixin Zhu
Weixin
Zhu
Cryptotanshinone possesses therapeutic effects on ischaemic stroke through regulating STAT5 in a rat model
<p>Cryptotanshinone (CT), a lipophilic compound extracted from roots of <i>Salvia miltiorrhiza</i> Bunge (Lamiaceae) (Danshen), has multiple properties in diseases, such as pulmonary fibrosis, lung cancer, and osteoarthritis. Our previous findings suggest that CT plays a protective role in cerebral stroke. However, the molecular mechanisms underlying CT protection in ischaemic stroke remain unclear.</p> <p>This study examines the effect of CT on ischaemic stroke.</p> <p>We used the middle cerebral artery occlusion (MCAO) rat (Sprague-Dawley rats, 200 ± 20 g, <i>n</i> = 5) model with a sham operation group was treated as negative control. MCAO rats were treated with 15 mg/kg CT using intragastric administration. Moreover, TGF-β (5 ng/mL) was used to treat MCAO rats as a positive control group.</p> <p>The 50% inhibitory concentration (IC<sub>50</sub>) of CT on CD4<sup>+</sup> cell damage was 485.1 μg/mL, and median effective concentration (EC<sub>50</sub>) was 485.1 μg/mL. CT attenuates the infarct region in the MCAO model. The percentage of CD4<sup>+</sup>CD25<sup>+</sup>FOXP3<sup>+</sup> Treg cells in the peripheral blood of the MCAO group was increased with CT treatment. The protein level of FOXP3 and the phosphorylation of STAT5 were recovered in the CD4<sup>+</sup>CD25<sup>+</sup> Treg cells of model group after treated with CT. Importantly, the effects of CT treatment were blocked by treatment with the inhibitor STAT5-IN-1 in CD4<sup>+</sup> T cells of the MCAO model.</p> <p>Our findings not only enhance the understanding of the mechanisms underlying CT treatment, but also indicate its potential value as a promising agent in the treatment of ischaemic stroke. Further study will be valuable to examine the effects of CT on patients with ischaemic stroke.</p>
Biochemistry
Cell Biology
Physiology
Pharmacology
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy
Taylor & Francis
2021
2021-04-29
2024-03-21
Dataset
503698 Bytes
10.1080/13880209.2021.1914672
CC BY 4.0