家蝇幼虫抗菌肽对肝癌HepG2细胞增殖、侵袭及迁移的影响？

EFFECT OF MUSCA DOMESTICA ANTIBACTERIAL PEPTIDES ON THE PROLIFERATION, INVASION AND MIGRATION OF HEPG2 CELLS

为了更全面的探究家蝇抗菌肽的抗肿瘤作用，本文从肿瘤细胞增殖、侵袭、迁移的角度研究家蝇幼虫抗菌肽对肿瘤细胞的抑制作用。通过针刺诱导家蝇三龄幼虫、低温离心、固相萃取后冻干获取抗菌肽粗提物，将所获抗菌肽调整至不同浓度进行CCK8细胞增殖实验。并通过细胞划痕实验和细胞侵袭实验判断家蝇抗菌肽对肝癌HepG2细胞迁移和侵袭的影响。实验结果显示家蝇抗菌肽能够明显抑制肝癌HepG2细胞的增殖，且作用效果与浓度呈剂量依赖特点。低浓度的抗菌肽（60μg／mL）能有效抑制肝癌HepG2细胞迁移及侵袭。

In order to study the antitumor function of the housefly antibacterial peptide in a more comprehensive way, this article studied the antitumor function of housefly antimicrobial peptides on the tumor cell proliferation, invasion and migration. To induce antibacterial peptides, we use the needle to prick housefly then go through a process of low temperature centrifugal, solid phase extraction and freeze-drying to obtain antibacterial peptides crude extract, and then adjust antibacterial peptides to different concentrations to inhibit CCK8, cell migration and invasion experiment. The experiment show that housefly antimicrobial peptide can inhibit HepG2 cells proliferation, and the dose-response characteristics is closely effected by its concentration. Low concentration of antibacterial peptides （60μg/mL） can also effectively inhibit the migration and invasion of HepG2 cells. In conclusion, the crude extractings of antibacterial peptides from housefly larvae can inhibit the proliferation, invasion and migration of HepG2 cells.