Application of bixanthone compound FLBG-1108 or its medicinal salt in preparing anticancer medicaments
A technology of FLBG-1108 and anti-cancer drugs, which is applied in drug combinations, medical preparations containing active ingredients, anti-tumor drugs, etc., can solve problems such as toxicity, side effects, rare anti-cancer drugs, and gastrointestinal discomfort of patients, and achieve toxicity Small side effects, clear anticancer effect, strong selective effect
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Embodiment 1
[0027] Antitumor activity of bixanthone compound FLBG-1108
[0028] The present invention adopts an in vitro cytotoxicity test to measure the antitumor activity of the compound FLBG-1108 by detecting the survival rate of human cancer cells cultured in vitro after being treated with different concentrations of the FLBG-1108 for 48 hours.
[0029] The selected tumor cell lines are: human non-small cell lung cancer H520, A549, H549, 1299, human liver cancer cell HepG2, human breast cancer cell MCF7, human prostate cancer cell PC3, LNcaP, DU145, human intestinal cancer cell SW480, HT-2P . The MTT method (reference Mosmann T.Rapid colorimetric assay for cellular growth and survival-application to proliferation and cytotoxicity assays.J Immunol Methods, 1983, 65(1-2), 55-63.) was used to measure the tumor cell The half-inhibitory concentration IC when the survival rate (or death rate) is 50% 50 . As normal cells, human kidney epidermal cells HKC-8 were used as the control.
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Embodiment 2
[0038] Selective tumor suppressor effect of bixanthone compound FLBG-1108
[0039] The test method (MTT) is similar to Example 1, using the same human cancer cell line and normal renal epidermal cells, the administration concentration of FLBG-1108 is set at three concentration gradients of 3.125, 6.25, and 12.5 μM, and mixed with various cells After 48 h of culture, the viability of the cells was measured.
[0040] Further use three concentration gradients (3.125, 6.25, 12.5μM) to measure the selective inhibitory effect of FLBG-1108 on various cancer cells, the results are as follows figure 1 shown. The diketone (bixanthone) compound FLBG-1108 showed inhibitory effect on the proliferation of human lung cancer cells H520, H549, 1299 and A549, but showed obvious selective inhibitory effect on human lung cancer cell H520. The inhibitory rate was gradually enhanced with the increase of the concentration, and the inhibitory degree was obviously stronger than that of other cancer ...
Embodiment 3
[0042] Dose-effect relationship of bixanthone compound FLBG-1108 in inhibiting the growth of lung cancer cell line H520
[0043] The method is similar to that of Example 1. The human lung cancer cell line H520 is mainly used for determination, and the administration concentration is set at seven concentration gradients of 0.34, 0.78, 1.56, 3.12, 6.25, 12.5, and 25.0 μM. The drug is mixed with the cancer cell H520 for 24 hours. After 48h and 72h, the survival rate of cancer cells was measured respectively.
[0044] The dose-effect relationship of FLBG-1108 inhibiting the growth of lung cancer cell H520 is as follows: figure 2 As shown, the results show that when the bixanthone compound FLBG-1108 acts on lung cancer cells H520 for 24 hours, its inhibitory activity is weak, but its inhibitory activity is significantly enhanced after acting for 48 hours and 72 hours, showing a good concentration and time. Dependency effect. Especially after 48h and 72h of action, there is a goo...
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