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Studies of TIPE2 inhibits TNF-α induced HepG2 cells migration

Abstract

摘要 【背景和目的】免疫微环境在肝癌的侵袭转移过程中发挥重要作用,TNF-α为关键调节分子,通过上调Erk、NF-κB通路诱导MMPs的表达最终导致肿瘤细胞的侵袭和迁移能力的增加,但肝癌中这一机制并不明确。TIPE2是一个免疫负调控基因,可抑制淋巴细胞F-actin的解聚及平滑肌细胞MMP-9的表达从而抑制细胞的迁移,此外肝癌的临床标本中也发现癌组织中的TIPE2表达明显低于癌旁组织,表明TIPE2有可能在抑制肝癌的迁移过程中发挥重要作用。因此,本实验主要研究TNF-α对HepG2迁移能力的影响相关机制及TIPE2对TNF-α所引起的现象及机制。 【方法】首先采用Transwell、Wes...Abstract It was reported that TNF-α, a mainly cytokine secreted in hepatitis tissues, could induce the activation of MMPs by activating Erk and NF-κB pathways and play important roles in the metastasis of tumor. TIPE2, a negative regulator of immune homeostasis, was found to be expressed significantly lower in liver cancer tissues than those cancer ambient tissues in clinical specimens. Meanwhile...学位:理学硕士院系专业:医学院_微生物学学号:2452010115333

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