Abstract:
:We evaluated the efficacy of a candidate melanoma vaccine approach in mice genetically prone to develop melanoma due to the introduction of an oncogenic mutation (R24C) in the germline sequence of the cyclin-dependent kinase 4 (cdk4), a protein critically involved in cell cycle regulation. Melanomas were induced in cdk4-mutant mice by chemical carcinogenesis and UVB irradiation. A genetic prime-boost strategy targeting the clinically relevant differentiation antigen tyrosinase-related protein 2 (TRP2) was performed which was able to stimulate a melanocyte-specific cellular immune response associated with localized autoimmune vitiligo-like depigmentation. However, significant destruction of carcinogen-induced autochthonous melanocytic neoplasms in the skin was not observed following immunization. We provide evidence that autochthonous melanomas expressed TRP2 but not the MHC molecule H2-Kb and are immunologically tolerated in the skin. Our results highlight the importance of assessing melanoma vaccines in genetic mouse models that more adequately represent the expected clinical situation in order to identify strategies, which eventually may be of benefit for melanoma patients.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Steitz J,Büchs S,Tormo D,Ferrer A,Wenzel J,Huber C,Wölfel T,Barbacid M,Malumbres M,Tüting Tdoi
10.1002/ijc.21349keywords:
subject
Has Abstractpub_date
2006-01-15 00:00:00pages
373-80issue
2eissn
0020-7136issn
1097-0215journal_volume
118pub_type
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