Application of PT2385 in preparation of medicine for preventing and treating pulmonary hypertension
A technology of 1.PT2385 and 3.PT2385, applied in the field of biomedicine, can solve the problems of ineffective inhibition and reversal of pulmonary vascular remodeling, lack of inhibition or reversal, etc.
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Embodiment 1
[0039] Observation on the protective effect of PT2385 on hypoxia-induced pulmonary hypertension model
[0040] PT2385 was purchased from MCE, item number: HY-12867.
[0041] Preparation method: PT2385 is dissolved in 0.5% (mass percentage) of sodium carboxymethyl cellulose, 2.5% (volume percentage) of Tween 80, 2.5% (volume percentage) of dimethyl sulfoxide In saline, C57BL / 6 mice were orally administered (20 mg / kg), once every 2 days.
[0042] experimental method
[0043] SPF grade male C57BL / 6 mice (purchased from Hunan Slack Jingda Experimental Animal Co., Ltd., the same below) were selected and randomly divided into three groups for 6-8 weeks: normoxia group (C) 7 mice, hypoxia group ( H) 6 rats, 8 rats in hypoxia+PT group (H+PT-2385, 20mg / kg / 2d, gavage). The mouse model of hypoxic pulmonary hypertension (HPH) was replicated by the continuous hypobaric hypoxia method, that is, the mice in the hypoxic group were placed in a hypobaric hypoxic chamber at a simulated altitu...
Embodiment 2
[0055] Regulatory effect of PT2385 on endothelial cell adhesion under chronic hypoxia
[0056] PT2385 was purchased from MCE, item number: HY-12867.
[0057] Preparation method: PT2385 dimethyl sulfoxide was prepared as a 1mM stock solution, and diluted with endothelial cell culture medium before use to a final concentration of 10μM.
[0058] experimental method:
[0059] Human pulmonary arterial endothelial cells (HPAEC) were purchased from ScienCell Company, cultured with HPAEC special culture medium, and the cells were placed at 37°C, 5% CO 2 cultured in a cell culture incubator. THP-1 cells were purchased from ATCC, and passaged when the cells grew to 90% confluence, and the cells in the logarithmic growth phase were selected for experiments. When the cells are subjected to hypoxic treatment, place the inoculated cells in a 2 and CO 2 in the tri-gas incubator, and the O 2 The concentration was set at 1% (5% CO 2 , 94%N 2 ), and removed after culturing for a corresp...
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