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LL-37 enhances adaptive antitumor immune response in a murine model when genetically fused with M-CSFRJ6-1 DNA vaccine
- Source :
-
Leukemia Research . May2005, Vol. 29 Issue 5, p535-543. 9p. - Publication Year :
- 2005
-
Abstract
- Abstract: DNA vaccine against M-CSFRJ6-1 (macrophage colony-stimulating factor receptor cloned from the J6-1 leukemic cell line) has shown both protective and therapeutic effects. In this study, to explore the adjuvant effects of LL-37 to M-CSFRJ6-1 DNA vaccines, we constructed genetically fused vaccines encoding M-CSFRJ6-1 and LL-37(pF). After immunizing BALB/c mice, specific humoral and cellular immune responses were detected. Compared with pR (encoding the extracellular region of M-CSFRJ6-1), pF was more effective in inducing humoral and cytotoxic immune response, prolonging survival of mice challenged with SP2/0-CSFRJ6-1 tumor cells, and inducing IFN-γ and IL-4 release by splenocytes. In this study, we also constructed pLL37 (encoding the mature LL-37) and coadministrated pLL37 and pR to see whether the genetic fusion was necessary. We found that compared with pR alone, pLL37+pR could not prolong survival of mice challenged with SP2/0-CSFRJ6-1 tumor cells. Our results suggest that when genetically fused with M-CSFRJ6-1, LL-37 could enhance adaptive immune response against M-CSFRJ6-1 in a murine model challenged with tumor cells bearing M-CSFRJ6-1. [Copyright &y& Elsevier]
- Subjects :
- *DNA vaccines
*MACROPHAGE activation
*BLOOD proteins
*POLYMERASE chain reaction
Subjects
Details
- Language :
- English
- ISSN :
- 01452126
- Volume :
- 29
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Leukemia Research
- Publication Type :
- Academic Journal
- Accession number :
- 17464037
- Full Text :
- https://doi.org/10.1016/j.leukres.2004.11.009