Role of TGF-β in Melanoma

Author(s): A. Busse, U. Keilholz.

Journal Name: Current Pharmaceutical Biotechnology

Volume 12 , Issue 12 , 2011

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Abstract:

Human malignant melanoma is highly resistant to chemotherapy and current immunotherapeutic approaches induce long term remission only in the minority of patients. The transforming growth factor-β (TGF-β) has attracted much attention as a therapeutic target because it plays an important and pleiotropic role in melanoma progression. TGF-β is a multifunctional cytokine involved in the regulation of many cellular processes including cell proliferation, differentiation and survival. Resistance to the growth inhibitory effects of TGF-β without alterations of TGF-β signaling molecules is characteristic of cutaneous melanoma. Melanoma produces increasing amounts of TGF-βwith disease progression, inhibiting immune responses and providing an optimal microenvironment for undisturbed tumor growth. In addition, TGF-β exerts its tumor promoting functions via direct effects on tumor cell motility and invasiveness and indirectly by modulating tumor stroma and extracellular matrix, supporting angiogenesis and inhibiting immune surveillance. TGF-β acts through multiple intracellular signaling pathways and the outcome of TGF-β signaling is context-dependent. Defining the impact of the different TGF-β signaling pathways on melanoma progression will help to identify suitable therapeutic targets. Here we review the current knowledge of TGF-β in melanoma and discuss recent therapeutic approaches targeting the TGF-β pathway.

Keywords: Melanoma, TGF-β, immunosuppression, growth resistance, invasion, angiogenesis, metastasis, inhibiting immune surveillance, therapeutic targets, human tumors, Cutaneous melanoma, cyclin-dependent kinase (CDK), various immunosuppressive mechanisms, melanocytes, melanoma growth

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Article Details

VOLUME: 12
ISSUE: 12
Year: 2011
Page: [2165 - 2175]
Pages: 11
DOI: 10.2174/138920111798808437
Price: $58

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