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Review
. 2018:1856:203-218.
doi: 10.1007/978-1-4939-8751-1_11.

Epigenetic Changes of the Immune System with Role in Tumor Development

Irina Daniela Florea  1 , Christina Karaoulani  2
Affiliations
Review

Epigenetic Changes of the Immune System with Role in Tumor Development

Irina Daniela Florea et al. Methods Mol Biol. 2018.

Abstract

Tumor development is closely related to chronic inflammation and to evasion of immune defense mechanisms by neoplastic cells. The mediators of the inflammatory process as well as proteins involved in immune response or immune response evasion can be subject to various epigenetic changes such as methylation, acetylation, or phosphorylation. Some of these, such as cytokine suppressors, are undergoing repression through epigenetic changes, and others such as cytokines or chemokines are undergoing activation through epigenetic changes, both modifications having as a result tumor progression. The activating changes can affect the receptor molecules involved in immune response and these promote inflammation and subsequently tumor development while the inactivating changes seem to be related to the tumor regression process. The proteins involved in antigen presentation, and, therefore in immune response escape, such as classical HLA proteins and related APM (antigen presentation machinery) with their epigenetic changes contribute to the tumor development process, either to tumor progression or regression, depending on the immune effector cells that are in play.

Keywords: 5-aza-2-deoxycytidine; APM; Acetylation; CIITA; Cancer; Chemokines; Cytokines; Epigenetics; HDAC inhibitors; HLA; Immune escape; Inflammation; Methylation; NK cells; Nonclassical HLA; SOCS; TLR.

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