寡核苷酸MTO1進(jìn)入人牙周膜細(xì)胞的時(shí)相觀察
[Abstract]:Objective: to investigate the mechanism of oligonucleotide MT01 (oligodeoxynucleotides) which is designed according to the sequence of human mitochondrial DNA (DNA) into human periodontal ligament cells, and to provide the experimental basis for the inhibition of alveolar bone resorption by oligonucleotide MT01. Methods: human periodontal ligament cells were cultured and identified in vitro. MT01 stained by Cy5 (working concentration was 1.0 渭 g/ml) was co-cultured with human periodontal ligament cells for 15 minutes, 30 minutes, 1 hour, 3 hours, 6 hours, 12 hours, 24 hours, 36 hours and 48 hours. Laser confocal microscopy observed the entry of MT01 into human periodontal ligament cells at the above nine time points and compared the fluorescence intensity of MT01 in human periodontal ligament cells at different time points. Using SPSS17.0 software and paired sample t-test method, the results of two groups were statistically different (P < 0. 05, P < 0. 01, P < 0. 01). The results showed that the fluorescence intensity of 1.0 渭 g/ml MT01 in human periodontal ligament cells for 15 minutes, 30 minutes, 1 hour, 3 hours, 6 hours, 12 hours, 24 hours, 36 hours and 48 hours was 1484 鹵128,1771 鹵2662773 鹵1364U, 2437 鹵2931737 鹵2972442 鹵2732442 鹵273282285 鹵451a 2119 鹵3744h, respectively. The fluorescence intensity of the experimental group at 12 hours was significantly different from that of the experimental group at 15 minutes, 30 minutes, 6 hours and 48 hours (P < 0.01). There was no statistical difference between the other groups. Experimental conclusions: 1. Oligonucleotide MT01 was rapidly entered into the cytoplasm of human periodontal ligament cells by endocytosis without carrier, and a certain concentration of oligonucleotide MT01 entered into human periodontal ligament cells in a time-dependent manner: the peak value was reached at 12 hours. Oligonucleotide MT01 is distributed at both ends of human periodontal ligament cells and has cell polarity.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R781.4
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