抗EB病毒口服液对EB病毒抗原表达的抑制作用及其细胞毒作用

目的 观察抗EB(Epstein-Barr)病毒口服液对EB病毒抗原表达的影响及对鼻咽癌CNE2细胞的细胞毒作用。方法 用间接荧光法测定抗EB病毒口服液对Raji细胞早期抗原(early antigen，EA)表达及B95-8细胞病毒壳抗原(virus capsid antigen，VCA)表达的影响；用MTT法测定其对鼻咽癌CNE2细胞的细胞毒作用。结果 抗EB病毒口服液在无毒的浓度下，对Raji细胞EB病毒EA抗原表达有较强的抑制作用，其IC50值为0．667mg／mL：对B95-8细胞EB病毒VCA抗原表达有较强的抑制作用。其IC50值为0．89mg／mL；对正丁酸钠激发的B95-8细胞EB病毒VCA抗原表达亦有较强的抑制作用，其IC50为1．1mg/mL。抗EB病毒口服液对人鼻咽癌细胞CNE2的IC50为7．57mg／mL。结论 抗EB病毒口服液能抑制EB病毒抗原的表达,在较高的浓度下对鼻咽癌细胞CNE2具细胞毒作用。

Inhibition of Anti-EB Virus Liquor on EB virus antigen expression and its cytotoxicity

Object To study the inhibitory effect of Anti-EB Virus Liquor (AEVL) on EB (Epstein-Barr) virus antigen expression and its cytotoxicity. Methods The effect of AEVL on Raji cell early antigen (EA) expression and B 95-8 cell virus capsid antigen (VCA) expression was assayed by indirect fluorescent technique; the cytotoxicity on nasopharyngeal carcinoma CNE 2 cells was determined by MTT method. Results At the non-toxic concentration, AEVL had markedly inhibitory effect on Raji cell EB-virus, IC 50 was 0.667 mg/mL and showed powerfully inhibitory effect on B 95-8 cell EB-virus VCA expression, IC 50 was 0.89 mg/mL; and it had strongly inhibitory effect on B 95-8 cell EB virus VCA expression stimulated by sodium n-butyric acid, IC 50 was 1.4 mg/mL. The IC 50 of AEVL on human nasopharyngeal carcinoma CNE 2 cell was 7.57 mg/mL. Conclusion AEVL could inhibit EB virus antigen expression and have cytotoxicity on nasopharyngel carcinoma cells at high concentration.