demethylation of cancer/testis antigens and cpg odn stimulation enhance dendritic cell and cytotoxic t lymphocyte function in a mouse mammary model

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ID: 216517
2013
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Abstract
Background. Cancer/testis antigens (CTAs) are ideal targets for cancer immunotherapy in virtue of their restricted expression profile in normal tissues. However, CTA-targeted immunotherapy has been rather disappointing clinical setting for CTAs are downregulated by cytosine-phosphate-guanosine (CpG) methylation in their promoter regions, so that tumor cells have low immunogenicity. Methods. We reinduced mouse CTA P1A through demethylation process and generated P1A-specific cytotoxic lymphocytes (CTLs) by immunizing BALB/c (H-2d) mice with dendritic cells pulsed with a P1A-specific peptide and CpG oligodeoxynucleotide (ODN) immune adjuvant. Results. We found that demethylation and CpG ODN immune adjuvant stimulation facilitated DC maturation and enhanced the allogenic capacity of P1A-specific CTLs against target cells both in vitro and in vivo. Conclusions. Our results suggested that CTA induction and immune adjuvant stimulation is a feasible strategy in cancer immunotherapy.
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sun2013biomeddemethylation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Jun-Zhong Sun;Lei Gao;Li Gao;Wei Wang;Nan Du;Juan Yang;Ling Wan;Fang Liu;Li-li Wang;Li Yu
Journal spectrochimica acta - part a: molecular and biomolecular spectroscopy
Year 2013
DOI
10.1155/2013/196894
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