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曲美替尼对K-ras突变直肠癌细胞恶性行为、耐药蛋白及巨噬细胞极化的作用机制的研究
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作者 舒海韵 张汝一 +1 位作者 杨远 王新俊 《胃肠病学和肝病学杂志》 CAS 2023年第3期264-269,共6页
目的探讨曲美替尼对K-ras突变直肠癌细胞恶性行为、耐药蛋白及巨噬细胞极化的作用机制。方法取K-ras突变直肠癌细胞HCT116,将其随机分为HCT116组(HC组)、西妥昔单抗+HCT116组(CE组)、低剂量曲美替尼+HCT116组(LT组)、中剂量曲美替尼+HCT... 目的探讨曲美替尼对K-ras突变直肠癌细胞恶性行为、耐药蛋白及巨噬细胞极化的作用机制。方法取K-ras突变直肠癌细胞HCT116,将其随机分为HCT116组(HC组)、西妥昔单抗+HCT116组(CE组)、低剂量曲美替尼+HCT116组(LT组)、中剂量曲美替尼+HCT116组(MT组)、高剂量曲美替尼+HCT116组(HT组),Transwell实验及划痕实验检测细胞恶性行为,MTT法检测药物敏感性,RT-PCR法检测耐药蛋白表达,免疫印迹法检测巨噬细胞极化相关指标。结果与HC组相比,其余四组细胞侵袭、迁移及GST-π、P-gp、TopoⅡ、CD163表达显著降低(P<0.05),CD40蛋白表达显著升高(P<0.05);与LT组相比,MT组、HT组细胞侵袭、迁移及GST-π、P-gp、TopoⅡ、CD163表达显著降低(P<0.05),CD40蛋白表达显著升高(P<0.05),且HT组比MT组变化明显(P<0.05);HCT116细胞对西妥昔单抗与曲美替尼均敏感,但与西妥昔单抗相比,曲美替尼的IC_(50)明显更低(P<0.05)。结论曲美替尼对K-ras突变直肠癌细胞具有显著疗效,可显著改善其恶性行为,抑制耐药蛋白表达,抑制巨噬细胞M2极化。 展开更多
关键词 曲美替尼 K-ras突变直肠癌细胞 恶性行为 耐药蛋白 巨噬细胞极化
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Treatment of undifferentiated thyroid carcinoma with darafini and trametinib:a case report and literature review
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作者 Nan Nan Tao Chi Xiao-Juan Yan 《TMR Cancer》 2019年第3期222-226,共5页
Undifferentiated thyroid carcinoma progresses rapidly and has a poor prognosis.The median progression-free survival is only about half a year,and the effect of conventional radiotherapy and chemotherapy is poor.Some p... Undifferentiated thyroid carcinoma progresses rapidly and has a poor prognosis.The median progression-free survival is only about half a year,and the effect of conventional radiotherapy and chemotherapy is poor.Some patients may be associated with BRAF V600E mutation.Dabrafenib and trametinib were approved by the FDA for the treatment of patients with unresectable or metastatic melanoma with BRAF V600E or V600K mutations.The combination of the two may make patients receive a better benefit.A phase III clinical trial showed that in patients with advanced malignant melanoma with positive BRAF-V600E mutations,the combination of dabrafenib and trametinib can effectively improve progression-free survival and overall survival in patients.This article describes a case describing a patient with BRAF V600E-mutated thyroid undifferentiated carcinoma that was treated with darafini and trimetinib,and the relevant literature on the combination of the two drugs was analyzed. 展开更多
关键词 UNDIFFERENTIATED THYROID CARCINOMA Darafini trimetinib BRAFmutation
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