Cancer and Immune System: Basic Concepts and Targets for Intervention

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120 Scopus citations


A number of consensuses regarding cancer immunology have recently emerged from both preclinical immunorapy models and analysis of cancer patients. First and foremost, natural state of endogenous tumor reactive T cells is characterized by general hyporesponsiveness or anergy. This is likely due to a number of mechanisms that tumors use to induce tolerance as y develop. While many of newer generation vaccines can effectively transfer antigen to and activate dendritic cells, T-cell tolerance remains a major barrier that is difficult to overcome by vaccination alone. Preclinical models demonstrate that for poorly immunogenic tumors, once tolerance has been established, rapeutic vaccines alone are ineffective at curing animals with a significant established tumor burden. However, combination strategies of vaccination toger with inhibitors of immunologic checkpoints and agonists for co-stimulatory pathways are proving capable of overcoming tolerance and generating significant anti-tumor responses even in cases of established metastatic cancer.

Original languageEnglish (US)
Pages (from-to)523-538
Number of pages16
JournalSeminars in oncology
Issue number4
StatePublished - Aug 1 2015

ASJC Scopus subject areas

  • Hematology
  • Oncology


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