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Current Cancer Drug Targets
Article . 2013 . Peer-reviewed
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Ipilimumab and Vemurafenib: Two Different Routes for Targeting Melanoma

Authors: Burgeiro, Ana; Mollinedo, Faustino; Oliveira, Paulo J.;

Ipilimumab and Vemurafenib: Two Different Routes for Targeting Melanoma

Abstract

Melanoma, a malignant tumor of melanocytes, causes the majority (75%) of all skin cancer-related deaths. The overall efficacy of different anti-cancer therapies on metastatic melanoma is quite limited, due to its high resistance to all forms of conventional treatments, including chemotherapy, radiotherapy and immunotherapy, leading to low patient survival rates. The present review identifies possible strategies for the treatment of advanced melanoma and describes two novel agents, Ipilimumab and Vemurafenib, which may now be useful for clinical practice. Ipilimumab, a humanized, IgG1 monoclonal antibody, acts through immune-modulation since it blocks cytotoxic T-lymphocyte- associated antigen-4 (CTLA-4), producing favourable antitumor immune system responses and reducing tolerance to tumor-associated antigens. Vemurafenib is a novel oral small-molecule kinase inhibitor with high selectivity and efficacy toward a specific mutated oncogenic BRAF-signalling mediator. The mechanism of action of Vemurafenib involves selective inhibition of the mutated BRAF(V600E) kinase that leads to reduced signalling through the aberrant MAPK pathway. However, as patients commonly develop Vemurafenib resistance, clinical trials of Vemurafenib in combination with Ipilimumab or other targeted or cytotoxic chemotherapeutic agents may provide more effective regimens with longterm clinical benefits, emphasizing the importance of simultaneously targeting several pathways. As both drugs had only modest effects on median survival, new therapeutic combinations are needed, such as BRAF inhibitors with MEK inhibitors or combinations of immunomodulators and pathway inhibitors. Such strategies should have the potential of maximizing antitumor effect while minimizing and improving clinical benefit. Nevertheless, these two new agents open a promising view into an effective management of melanoma.

Keywords

Sulfonamides, Indoles, Vemurafenib, Animals, Antibodies, Monoclonal, Humans, Ipilimumab, Melanoma, Signal Transduction

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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