康莱特注射液在Lewis肺癌中对肿瘤生长及EGFR蛋白表达的影响

目的：探讨康莱特注射液（KLT）对小鼠Lewis肺癌生长及对表皮生长因子受体（EGFR）蛋白表达的影响。方法：建立小鼠Lewis肺癌模型,将40只接种Lewis肺癌细胞的C57BL/6小鼠随机分成4组：模型对照组、KLT低剂量组（6.25mL/kg）、KLT中剂量组（12.5mL/kg）、KLT高剂量组（25mL/kg）,每组10只。小鼠连续腹腔注射KLT注射液14d,于接种后第16天处死小鼠,测量瘤重及体重,计算肿瘤抑制率,提取肿瘤组织总蛋白,通过Westernblot法检测肿瘤组织EGFR的蛋白表达情况。结果：KLT注射液能明显抑制Lewis肺癌小鼠肿瘤的生长,影响肿瘤组织的形态及组织学改变,并能降低肿瘤组织中EGFR的蛋白表达量。结论：KLT注射液可明显抑制小鼠Lewis肺癌的生长,其机制可能与抑制EGFR的蛋白表达有关。

Effects of Kanglaite injection on antitumor and expression of EGFR in Lewis lung carcinoma

AIM:To research the effects of Kanglaite(KLT)iniection on antitumor and expression of epidermal growth factor receptor (EGFR)in Lewis lung carcinoma(LLC).METHODS:A total of 40 C57BL/6 mice were randomly divided into four groups,including model group,KLT 6.25,12.5,25 mL/kg groups.All the mice were injected with 2×10~6 LLC cells at 1st day.At the next day,mice in the KLT groups were peritoneally injected with KLT for 14 days.And at the 16th day,all the mice were sacrificed and the tumors were harvested.The tumor weight was measured and the tumor growth inhibition rate was analyzed.The expression of EGFR was detected by westernblot.RESULTS:The growth of LLC was significandy inhibited by KLT,the changes of tumor appearance and histology were affected and the expression level of EGFR was decreased.CONCLUSION:KLT injection could obviously inhibit the growth of LLC,whose mechanism maybe related to the inhibition of EGFR expression.