CARD10 promotes apoptosis inhibition of hepatocellular carcinoma cells by activating NF-κB pathway / 中国肿瘤生物治疗杂志

@# Objective: To investigate the expression of CARD10 in hepatocellular carcinoma (HCC) tissues, and the roles of CARD10 in HCC progression especially apoptosis inhibition. Methods: The expression of CARD10 was examined in pared non-tumor liver tissues and HCC tissues using qRT-PCR, and their correlation with HCC TNM stage was analyzed using Spearman’s rank correlation assay in SPSS 17.0. In HCC cells with CARD10 overexpression or knockdown, cytometry using Annexin-V/PI labeling was used to measure apoptosis, and Western blotting was used to determine the activation of NF-κB pathway. Results: CARD10 expression was significantly increased in HCC tissues as compared to that in pared non-tumor liver tissues (P<0.01), and the increased CARD10 in HCC was positively correlated with TNM staging (P<0.01). The apoptosis of HCC cell lines SMMC-7721 and BEL-7402 was inhibited by CARD10 overexpression while promoted by CARD10 knockdown, and the pro-survival NF-κB pathway was also enhanced by CARD 10 over-expression while suppressed by CARD10 knockdown. Conclusion: CARD10 expression is increased in HCC tissues and positively correlated with HCC progression. CARD10 inhibits HCC apoptosis by promoting the activation of NF-κB pathway. [Key words] hepatocellular carcinoma (HCC); caspase recruitment domain family member 10 (CARD10); apoptosis; NF-κB

Roles of RIG-I in tumorigenesis and progression / 中国肿瘤生物治疗杂志

@#在天然免疫应答尤其是抗病毒天然免疫应答中，维甲酸诱导基因-I（retinoic acid inducible gene I,RIG-I）是重要的胞内 病毒RNA模式识别受体，其通过结合和识别病毒来源的RNA进而活化下游RIG-I信号通路，从而激发炎症因子和I型干扰素的 表达，实现抗病毒天然免疫应答的启动。然而，新近研究表明，在肿瘤发生发展的过程中，RIG-I亦可发挥重要的调控作用。在肿 瘤进展的不同病理阶段，RIG-I可发挥抑制或促进肿瘤进展的功能。本文就RIG-I在不同肿瘤及其发生发展不同阶段所发挥的抑 癌基因或促癌基因样作用的研究进展作一综述。