Abstract:
:bcr/abl fusion gene is thought to be a promising target for chronic myelogenous leukemia (CML) patients to enhance immune response after attaining complete remission. In this study, we sought to enhance cellular immunity by co-expression of BCR/ABL and murine IL-12 gene on the tumor cell surface as a glycosyl-phosphatidylinositol (GPI)-form. The successfully constructed plasmid pBudCE4.1-BCR/ABL-GPI-mIL12 resulted in high levels of splenocyte proliferative responses, significant levels of IL-2 and IFNγ, and strong cytotoxic T-lymphocyte (CTL) responses in vitro. In a murine transplant model, the vaccinated mice showed decreased infiltration of leukemia cells and reduced expression of BCR/ABL transcripts and protein in bone marrow cells. Results of the present study indicated that this novel immunization strategy is useful in enhancing immune protection in mice, which would provide new insights into the development of effective vaccines for treating CML.
journal_name
Cancer Biol Therjournal_title
Cancer biology & therapyauthors
Tao K,Li YJ,Wang D,Qi JY,Deng YP,Wang HX,Hu J,Feng WLdoi
10.4161/cbt.12.10.17674subject
Has Abstractpub_date
2011-11-15 00:00:00pages
881-7issue
10eissn
1538-4047issn
1555-8576pii
17674journal_volume
12pub_type
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