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甘露糖结合凝集素对甲状腺癌细胞p53及Bcl-2蛋白表达的影响
引用本文:韩颖,刘阁玲,张慧芹,俞芳,李伟娟,路一芳,石燕萍. 甘露糖结合凝集素对甲状腺癌细胞p53及Bcl-2蛋白表达的影响[J]. 综合临床医学, 2012, 0(10): 1039-1041
作者姓名:韩颖  刘阁玲  张慧芹  俞芳  李伟娟  路一芳  石燕萍
作者单位:[1]河北省唐山市第八医院内分泌科,063000 [2]唐山市工人医院内分泌一科,063000
基金项目:河北省自然科学基金资助项目(C2008001306)
摘    要:目的探讨甘露糖结合凝集素(MBL)对甲状腺癌细胞株p53及凋亡基因Bcl-2基因表达的影响。方法将0、1mg/L的重组人甘露糖结合凝集素(RhMBL)(对照组、实验组)分别作用于两种甲状腺癌细胞株(甲状腺乳头状癌细胞和甲状腺滤泡状癌细胞),利用蛋白印记(WesternBlot)检测p53、Bcl-2的表达。结果重组人甘露糖结合凝集素作用于甲状腺癌细胞株后,可使p53及Bcl-2蛋白相对表达量下调。(1)甲状腺乳头状癌细胞:p53蛋白对照组的表达量为1.51±0.29、实验组为0.74±O.07,两组比较差异有统计学意义(t=7.63,P=0.040);Bcl-2蛋白对照组的表达量为1.20±0.07,实验组为0.59±0.04,两组比较差异有统计学意义(t=6.28,P=0.001)。(2)甲状腺滤泡状癌细胞:p53蛋白对照组的表达量为0.88±O.14,实验组为0.35±0.08,两组比较差异有统计学意义(t=3.29,P=0.003);Bcl-2蛋白对照组的表达量为1.07±0.11,实验组为0.33±0.06,两组比较差异有统计学意义(t=5.73,P=0.000)。结论MBL在其诱导甲状腺癌细胞凋亡、抑制其增殖的的过程中,Bcl-2和p53可能发挥着一定的作用。

关 键 词:甲状腺癌  甘露糖结合凝集素  p53  Bcl-2

Influence of MBL on the exPression of Bcl-2 and p53 gene in thyroid cancer cell lines
Affiliation:HAN Ying, LIU Ge-ling , ZHANG Hui-qin, YU Fung , LI Wei-juan, LU Yi-fang , SHI Yah-ping. Department of Endocrinology, The Eighth Hospital of Tangshan City, Tangshan 063000, China
Abstract:Objective To observe the effect of recombinant human mannose-binding lectin (RhMBL) on the expression of Bcl-2 and p53 gene in thyroid cancer cell lines. Methods Two kinds of thyroid cancer cell lines( K1 cells and FFC-133 cells) were dealed with different concentrations of rhMBL( control group :0 mg/L; experimental group: 1 mg/L), then total protein was extracted to detect the expression of Bcl-2 and p53 by Western Blot. Results The expression level of p53 and Bcl-2 were observed to be obviously down-regulated after incubation with RhMBL. (1)K1 cells :There was significant difference on the expression of p53 and Bcl-2 between control group and experimental group [ p53 : ( 1.51 ± O. 29 ) vs (0. 74 ± O. 07 ), t = 7.63 ; P = 0. 040 Bcl-2 : ( 1.20 ± O. 07 ) vs ( 0. 59±O. 04 ), t = 6. 28, P = 0. 001 ] ; ( 2 ) FTC-133 cells : there was also significant difference on the expression of p53 and Bcl-2 between control group and experimental group [ p53 : ( O. 88 ± 0.14) vs(0.35 ±0.08),t =3.29,P=0.003; Bcl-2 :(1.07 ±0.11) vs (0.33±0.06),t =5.73,P= 0. 000 ]. Conclusion Bcl-2 and p53 may play an important role on the induction of thyroid cancer cell apoptosis and inhibition its proliferation by RhMBL.
Keywords:Thyroid neoplasm  Mannose-binding lectin  p53  Bcl-2
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