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An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
Published on: September 12, 2019
Autophagy and biotransformation affect sorafenib resistance in hepatocellular carcinoma
Ruiqi Zheng1, Shuang Weng2, Jianping Xu3
1State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, Beijing Key Laboratory for Carcinogenesis and Cancer Prevention, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
Abstract:
As sorafenib is a first-line drug for treating advanced hepatocellular carcinoma, sorafenib resistance has historically attracted attention. However, most of this attention has been focused on a series of mechanisms related to drug resistance arising after sorafenib treatment. In this study, we used proteomic techniques to explore the potential mechanisms by which pretreatment factors affect sorafenib resistance. The degree of redundant pathway PI3K/AKT activation, biotransformation capacity, and autophagy level in hepatocellular carcinoma patients prior to sorafenib treatment might affect their sensitivity to sorafenib, in which ADH1A and STING1 are key molecules. These three factors could interact mechanistically to promote tumor cell survival, might be malignant features of tumor cells, and are associated with hepatocellular carcinoma prognosis. Our study suggests possible avenues of therapeutic intervention for patients with sorafenib-resistance and the potential application of immunotherapy with the aim of improving the survival of such patients.
Insights
Pretreatment factors like PI3K/AKT activation, biotransformation, and autophagy influence hepatocellular carcinoma (HCC) patient response to sorafenib. Key molecules ADH1A and STING1 are implicated in sorafenib resistance, suggesting new therapeutic targets.
Area of Science:
- Oncology
- Proteomics
- Molecular Biology
Background:
- Sorafenib is a primary treatment for advanced hepatocellular carcinoma (HCC).
- Sorafenib resistance is a significant clinical challenge, with most research focusing on post-treatment resistance mechanisms.
- Understanding pretreatment factors influencing sorafenib sensitivity is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate potential pretreatment factors that affect sorafenib resistance in hepatocellular carcinoma using proteomic techniques.
- To identify key molecular players involved in the development of sorafenib resistance prior to treatment initiation.
Main Methods:
- Proteomic analysis of hepatocellular carcinoma patient samples.
- Investigation of pathway activation (PI3K/AKT), biotransformation capacity, and autophagy levels.
- Identification of key molecules such as ADH1A and STING1.
Main Results:
- Pretreatment PI3K/AKT pathway activation, biotransformation capacity, and autophagy levels are associated with sorafenib resistance in HCC.
- ADH1A and STING1 were identified as key molecules influencing sorafenib sensitivity.
- These factors interact to promote tumor cell survival and are linked to HCC prognosis.
Conclusions:
- Pretreatment cellular states, including PI3K/AKT activation, biotransformation, and autophagy, significantly impact sorafenib efficacy in HCC.
- Targeting ADH1A and STING1 may offer novel therapeutic strategies for overcoming sorafenib resistance.
- Findings suggest potential for immunotherapy in improving survival for sorafenib-resistant HCC patients.
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