Applications of dopamine I receptor agonists in preparing tumor treatment medicines
A receptor agonist and tumor treatment technology, applied in the field of biomedicine, can solve the problems of accelerating cells, cell necrosis, death, etc., and achieve the effect of inhibiting growth
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Embodiment 1
[0017] Example 1 SFK83959 inhibits cell line growth experiment
[0018] Experimental Materials:
[0019] Rat pituitary tumor cell lines GH3 and MMQ (purchased from ATCC), and human primary pituitary adenoma cells (removed from surgery and placed in culture medium directly for culture) were incubated at 37°C and 5% CO 2 Under normal conditions, the culture medium is DMEM / F12 (Gibco) containing 2.5% fetal bovine serum (Gibco) plus 12.5% horse serum. N2A cells and other malignant tumor cells (U87, U66, U251, SCG7901, SW480, hepG2) (Chinese Academy of Sciences) at 37 ° C, 5% CO 2 Under conventional conditions, the culture medium is DMEM (Gibco) medium containing 10% fetal bovine serum (Gibco). Dopamine type 1 receptor agonists SKF83959 and SKF38393 were purchased from Tocris (UK), the mother solution 50mM was prepared from DMSO (sigma), and the MTS assay reagent for cell viability was purchased from Promega (USA).
[0020] experimental method:
[0021] 1. MTS assay to detect...
example 2
[0039] Example 2. Nude mice xenograft tumor model experiment
[0040] Experimental Materials:
[0041] Nude mice were purchased from SLAC (Shanghai), and the rest were the same as in Example 1.
[0042] experimental method:
[0043] 1) Select 4-week-old nude mice;
[0044] 2) Collect the logarithmically grown tumor cells, use 10 ml of serum-free medium, centrifuge at 1000 rpm for 3 minutes, wash continuously for 3 times, and finally resuspend the tumor cells with serum-free medium, and adjust the density to 1×10 7 Cells / ml, each nude mouse was inoculated with 100ul (i.e. 1×10 6 tumor cells), the tumor can be palpable in the armpit of nude mice in about 4 days;
[0045] 3) When the tumor volume grows to about 100mm 3 Timely divided into DMSO and SKF83959 groups, given SKF83959 (1mg / kg) intraperitoneal injection, each nude mouse body weight is about 20g, each nude mouse intraperitoneal injection amount is 1μl of SKF83959 (50mM)+99μl normal saline, administered once a day, ...
Embodiment 3
[0047] Example 3, SKF83959 induces autophagy by inhibiting the mTOR pathway
[0048] Experimental Materials:
[0049] RIPA Lysis Solution, PMSF, Loading Buffer (5×), BCA Protein Quantification Kit, and DAPI were purchased from Beyontien Biotechnology Research Institute (Jiangsu); Protease Inhibitor Cocktail was purchased from Merck (Germany). BSA was purchased from sigma (9048-46-8). PBS, 0.5% Trypsin-EDTA were purchased from Gibco. Antibody: Antibody LC3(sigma L7543), Antibody GAPDH(Huaan ARH4156), Antibody PARP(CST#9542), Antibody p-4EBP1(CST#2855), Antibody p-mTOR(CST#5536), Anti-rabbit IgG(CST 14708), Anti-rabbit IgG-Peroxidase antibody (sigma A0545); strong chemiluminescence kit was purchased from Bio-rad company.
[0050] experimental method:
[0051] 1) GH3 cells were suspended in conventional medium, and the cell density was adjusted to 4×10 5 The cells / well were inoculated in 6-well culture plates and adhered overnight, each well contained 2ml of culture medium, ...
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