• Curr Cancer Drug Targets · Mar 2013

    Review

    Targeting tyrosine kinase receptors in hepatocellular carcinoma.

    • Jordi Muntané, Angel J De la Rosa, Fernando Docobo, Rocío García-Carbonero, and Francisco J Padillo.
    • Oncology Surgery, Cell Therapy and Transplant Organs, Instituto de Biomedicina de Sevilla (IBiS)/Hospital Universitario Virgen del Rocío/IBiS/Universidad de Sevilla, Sevilla, Spain. jmuntane-ibis@us.es
    • Curr Cancer Drug Targets. 2013 Mar 1; 13 (3): 300-12.

    AbstractThe recent discoveries of genomic and molecular markers in hepatocellular carcinoma (HCC) have improved the understanding about the complexity of the signal transduction pathways as well as their relevance in normal and liver cancer cells. The identification of the functional repercussions of punctual mutations and crosstalk among cell signaling will promote the identification of specific combinatorial targeted molecular therapies to specific subsets of patients which will allow the development of personalized-based therapy and increase the survival of patients. Numerous molecular targets are in the cross-road between oncogenic and anti-apoptotic programs, genetic or epigenetic alterations, which overall may have a similar cellular phenotype. The standard antineoplastic chemotherapeutic regimes based on cytotoxic agents leads to significant side effect and modest response rates, marginal changes in natural history, and toxicities that may impact the quality of life of patients. Different strategies involving gene therapy, targeted antibodies or small molecules have been used to regulate cell death/proliferation signals, as well as angiogenesis in liver tumors. In this sense, Sorafenib recently approved for renal cell carcinoma, represents the first tyrosine kinase inhibitor (TKI) licensed for the treatment of patients with advanced HCC. This review summarizes the current status of molecular receptor TKI-based targeted therapy in HCC driving different pathways involved in cell survival, proliferation, migration, angiogenesis and metastasis, which include the regulation of Raf/MEK/ERK, PI3K/Akt/mTOR, and Jak/STAT cell signaling. The study also provides information about cell signaling crosstalk relevant in tyrosine kinase receptors (TKR)-based systemic therapy in HCC.

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