Synergic pharmaceutical composition treating tumors
A composition and drug technology, applied in the direction of drug combination, antineoplastic drugs, heterocyclic compound active ingredients, etc., can solve the problems of autophagy inhibitors and beta interferon tumors that have not been seen yet
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Embodiment 1
[0029] Example 1: Preparation of beta interferon and autophagy inhibitory drugs
[0030] Preparation of beta interferon drug: Weigh 0.25 mg of recombinant human interferon β-1b, dissolve it in 1 ml of 0.54% sterile sodium chloride solution, stir thoroughly for 30 minutes and filter it with a 0.1 μm sterile filter, and divide it into 10 tubes for storage, each with 100 μl. The activity of interferon beta is 8.0MIU / ml;
[0031] Formulating autophagy-inhibiting drugs:
[0032] (1) Preparation of chloroquine: Dissolve an appropriate amount of chloroquine in pure water to make a 10mmol / L storage solution, filter and sterilize it with a 0.1μm filter, store it at 4°C, and dilute it 500-1000 times in an in vitro laboratory to inhibit cell autogenesis. bite;
[0033](2) Preparation of ammonium chloride: Dissolve an appropriate amount of ammonium chloride in water to make a 0.4mol / L storage solution, filter and sterilize with a 0.1μm filter, and store at 4°C. In vitro experimen...
Embodiment 2
[0039] Example 2: Interferon-beta can cause the formation of autophagosomes in human glioma cells
[0040] Human glioma cells U251MG and U87MG cells were treated with 2000IU / ml interferon-beta for 48 hours respectively, the cells were collected and fixed, and samples were prepared for electron microscopy. showed that the enlarged electron micrographs can clearly observe the autophagosome structure with double-layer to multi-layer membranes (such as figure 1 shown).
Embodiment 3
[0041] Example 3: Interferon-beta can induce autophagy signal generation in human glioma cells
[0042] Human glioma U251MG and U87MG cells were treated with 2000IU / ml β-interferon for 48 hours, and the cells treated with 500nM rapamycin for 12 hours were used as positive controls. After the dye was stained, it was observed with a laser confocal microscope. As a result, the negative control had no autophagy-related green fluorescence, and the positive controls treated with interferon-beta and rapamycin had autophagy-related green fluorescence (such as figure 2 shown).
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