Targeting DNA Methylation Machinery in Pediatric Solid Tumors

被引:2
|
作者
Cristalli, Camilla [1 ]
Scotlandi, Katia [1 ]
机构
[1] IRCCS Ist Ortoped Rizzoli, Lab Expt Oncol, Via Barbiano 1-10, I-40136 Bologna, Italy
关键词
DNA methylation; pediatric solid cancers; DNMT inhibitors; CENTRAL-NERVOUS-SYSTEM; ABERRANT PROMOTER METHYLATION; PHASE-I; DEMETHYLATING AGENTS; MEDIATED REPRESSION; GENOMIC LANDSCAPE; GROWTH-INHIBITION; GENE-EXPRESSION; NONCODING RNAS; RETINOIC ACID;
D O I
10.3390/cells13141209
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
DNA methylation is a key epigenetic regulatory mechanism that plays a critical role in a variety of cellular processes, including the regulation of cell fate during development, maintenance of cell identity, and genome stability. DNA methylation is tightly regulated by enzymatic reactions and its deregulation plays an important role in the development of cancer. Specific DNA methylation alterations have been found in pediatric solid tumors, providing new insights into the development of these tumors. In addition, DNA methylation profiles have greatly contributed to tune the diagnosis of pediatric solid tumors and to define subgroups of patients with different risks of progression, leading to the reduction in unwanted toxicity and the improvement of treatment efficacy. This review highlights the dysregulated DNA methylome in pediatric solid tumors and how this information provides promising targets for epigenetic therapies, particularly inhibitors of DNMT enzymes (DNMTis). Opportunities and limitations are considered, including the ability of DNMTis to induce viral mimicry and immune signaling by tumors. Besides intrinsic action against cancer cells, DNMTis have the potential to sensitize immune-cold tumors to immunotherapies and may represent a remarkable option to improve the treatment of challenging pediatric solid tumors.
引用
收藏
页数:37
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