Applications of bigelovii A in preparing drugs used for preventing and treating inflammatory diseases
A technology of saponin A and saponin A, applied in the application field of a pharmaceutical composition, can solve problems such as no reports on the action of saponin A in saponin
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Embodiment 1
[0019] Example 1 Cytotoxicity Test of Salicornia saponin A
[0020] The cytotoxicity of salicornia saponin A was detected by MTT method, and the specific steps were as follows:
[0021] RAW264.7 cells (2×10 5 cells / well) were inserted into 96-well culture plates and cultured overnight, and different concentrations of salicordin A (1, 2, 4, 6, 8, 10 μg / ml, DMSO was used as a blank control) were added for 24 hours, and then Add MTT to a final concentration of 0.5 mg / ml for 4 hours, add DMSO at 100 μl / well, shake for 15 minutes, and read the absorbance at a wavelength of 570 nm.
[0022] OD 570 Can reflect the growth of cells, according to OD 570 Calculate the cell viability to judge whether salicordin A has cytotoxicity.
[0023] The results of the MTT method showed that (see figure 2 ): Salicordin A has basically no cytotoxicity to RAW264.7 cells at a concentration of 1-10 μg / ml.
Embodiment 2
[0024] Example 2 Salicordin A inhibits prostaglandin E 2 (PGE 2 )effect
[0025] Mouse macrophages RAW264.7 in the logarithmic growth phase were spread on 24-well plates, adhered to the wall overnight, added saponin A or positive control indomethacin, and 100 ng / ml LPS was added for 24 hours after 2 hours. Collect the cell culture fluid, 1000g, 15min, use the competitive ELISA method to detect the prostaglandin E in the supernatant 2 . see results image 3 .
[0026] Compared with the LPS-induced inflammation model group, after administration of salicordin A, LPS induced prostaglandin E secreted by mouse macrophage RAW264.7 2 Significantly reduced, and showed a good dose-dependent.
Embodiment 3
[0027] Example 3 Salicordin A inhibits the action of inflammatory factor nitric oxide (NO)
[0028] RAW264.7 cells (1×10 6 Cells / mL) were inserted into 96-well culture plates and cultured overnight, then different concentrations of salicordin A (0.1, 1, 10 μg / ml, DMSO was used as blank control), and then 100 ng / ml LPS was added to stimulate After 24 hours, the cell culture supernatant was collected, and the content of nitric oxide (NO) was detected by the Griess method.
[0029] Experimental results (see Figure 4 ) showed that: Salicornia saponin A can inhibit bacterial lipopolysaccharide-induced nitric oxide production in RAW264.7 cells in a dose-dependent manner.
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