Hepatocellular carcinoma (Hepatocellular carcinoma HCC) is one of the most common human malignancies, a serious threat to the life and health of our people. Postoperative HCC recurrence and metastasis are the main factors leading to the high mortality rate . Tumor recurrence and metastasis is a complex, multi molecular continuous, participation in the cascade process. Currently known hepatitis B virus infection, activate the glycosylation abnormalities and the cell surface receptors are related to metastasis and recurrence of HCC. But how the relationship between the three, whether mutual cooperation to jointly participate in the HCC recurrence and metastasis is still unclear. We plan on the basis of previous studies, the hepatic cancer cells and tissue as the research object, surrounding the virus HBx protein and N-acetylglucosaminyltransferase III (GnT-III) function, establishment of liver cancer cell surface receptor tyrosine kinase B (TrkB) molecule N- glycosylation participate in HBV related hepatocellular carcinoma metastasis and recurrence molecular regulation and intervention mechanism, and lay the foundation for the development of liver cancer molecular target for N- glycosylation and the activation of TrkB signaling to the treatment of research and drug development.
肝细胞癌(Hepatocellular carcinoma, HCC)是人类最常见的恶性肿瘤之一,严重威胁我国人民生命健康安全。HCC术后的复发转移是导致其死亡率居高不下的最主要因素。肿瘤的复发转移是一个复杂的、连续的、多分子参与的级联过程。目前已知乙型肝炎病毒的感染,糖基异常化修饰和细胞表面受体的激活都与HCC的复发转移有关。但三者之间关系如何,通过怎样的方式协同参与HCC的复发转移过程仍不清楚。我们拟在前期研究的基础上,以肝癌细胞和组织为研究对象,围绕乙肝相关肝癌中病毒蛋白HBx和N-乙酰氨基葡萄糖转移酶Ⅲ(GnT-III)的调控作用,建立肝癌细胞表面酪氨酸激酶受体B(TrkB)分子N-糖基化修饰参与乙肝相关肝癌转移复发的分子调控和干预机制,为开发针对N-糖基化修饰和TrkB信号通路的肝癌分子靶向治疗研究和药物开发奠定基础。
肝细胞癌是人类最常见的恶性肿瘤之一,严重威胁我国人民生命健康安全。HCC术后的复发转移是导致其死亡率居高不下的最主要因素。肿瘤的复发转移是一个复杂的、连续的、多分子参与的级联过程。目前已知乙型肝炎病毒的感染,糖基异常化修饰和细胞表面受体的激活都与HCC的复发转移有关。我们在前期研究的基础上,以肝癌细胞和组织为研究对象,围绕乙肝相关肝癌中病毒蛋白HBx和N-乙酰氨基葡萄糖转移酶Ⅲ(GnT-III)的调控作用开展研究。本研究证明”HBx通过GnT-III调控TrkB的糖基化修饰,增加细胞表面TrkB的表达促进乙肝相关肝癌复发转移”这一假设是成立的,这为我们寻找乙肝相关肝癌的生物标志物以及治疗相关肝癌复发转移的特异性分子靶向药物提供了理论基础和新的方向。本课题的研究发现HBx蛋白可以通过GnT-III调控细胞表面TrkB 的N-糖基化;TrkB N-糖基化可以通过激活其下游的Akt和CREB信号通路,促进乙肝病毒相关肝癌的复发转移;TrkB是GnT-III糖基转移酶活性的靶蛋白;GnT-Ⅲ糖基转移酶活性抑制剂SW和TrkB络氨酸激酶抑制剂K252a以及植物提取物Eugenol都对肝细胞的损伤和恶性转化有抑制作用,这些小分子的制剂有望成为治疗肝癌的新的生物靶向药物。
{{i.achievement_title}}
数据更新时间:2023-05-31
Intensive photocatalytic activity enhancement of Bi5O7I via coupling with band structure and content adjustable BiOBrxI1-x
The Role of Osteokines in Sarcopenia: Therapeutic Directions and Application Prospects
Identification of the starting reaction position in the hydrogenation of (N-ethyl)carbazole over Raney-Ni
Bousangine A, a novel C-17-nor aspidosperma-type monoterpenoid indole alkaloid from Bousigonia angustifolia
莱州湾近岸海域中典型抗生素与抗性细菌分布特征及其内在相关性
CD147分子N-糖基化修饰促进肝癌侵袭转移的机制研究
GnT-III通过对功能蛋白N-糖基化作用调控绒毛外滋养细胞的侵袭能力
HBx介导肝卵圆细胞通过EMT导致肝癌复发和转移的机制研究
幽门螺杆菌通过N-糖基化修饰促进胃癌耐药机制的研究