Objective To summarize the mechanism of microRNA in the recurrence and metastasis of hepatocellular carcinoma (HCC) and its possible clinical application. Methods The relevant literatures at home and abroad were reviewed to summarize the results of various scholars. Results microRNA played an important role in cell proliferation and apoptosis of HCC. microRNA of different types promoted or inhibited the recurrence and metastasis of HCC through different action targets and molecular pathways. Conclusions microRNA has a regulation role in the recurrence and metastasis of HCC, and the depth mechanisms study of microRNA in the recurrence and metastasis of HCC provides great significance to clinical therapy. The miRNA is expected to be one of the new target on the prediction and treatment of recurrence and metastasis in HCC.
Objective To summarize the treatment and prognosis of malignant tumors with hepatic metastasis. Methods Review and analysis of recent relevant literatures at home and abroad of malignant tumors with liver metastasis, according to the different treatments were summarized. Evaluation of the patients’ clinically curative effect and survival situation was performed under different treatments. Results With the development of imaging and surgical techniques, and deeply understanding of malignant tumor, many malignant tumors with liver metastasis could be found and treated, and previous concept of treatment for malignant tumors with liver metastasis was also fundamentally changed, and radical resection of the primary lesions and liver metastasis was the best way to get clinically curative effect for the patients with malignant tumors with liver metastasis. The treatments of malignant tumors with liver metastasis also included radio frequency ablation (RFA), transarterial chemoembolization (TACE), chemotherapy,125I seed implantation, cryotherapy, stereotactic body radiation therapy (SBRT), laser-induced interstitial thermotherapy (LITT), gene targeting therapy, and so on. Conclusion Now for malignant tumors with liver metastasis, positive surgery and (or) individualized comprehensive treatment are taken more often, and they play positive role to prolong the survival and improve the prognosis of malignant tumors patients with liver metastasis.
Objective To summarize the important role of sirtuin type 1 (SIRT1) in the development of gastrointestinal tumors. Methods Domestic and international publications related to biological functions of SIRT1 and its role in gastrointestinal tumors in recent years were collected and reviewed. Results SIRT1 had a significant high expression in esophageal cancer, gastric cancer, colorectal cancer, liver cancer, and pancreatic cancer tissues, by associating with long noncoding RNA (LncRNA), microRNA, and autophagy. It affected the occurrence and development of gastrointestinal tumors. Conclusions Abnormal expression of SIRT1 is closely related to the occurrence and development of gastrointestinal tumors.