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| Content Provider | PubMed Central |
|---|---|
| Author | Li, Yue Zeng, Xiaoli He, Lijuan Yuan, Hui |
| Copyright Year | 2015 |
| Abstract | Dendritic cells (DC) are the most potent antigen-presenting cells for initiating immune responses. DC maturation can be induced by exposing of immature DC to pathogen products or pro-inflammatory factor, which dramatically enhances the ability of DC to activate Ag-specific T cells. In this study, a recombinant calreticulin fragment 39-272 (rCRT/39-272) covering the lectin-like N domain and partial P domain of murine CRT has been expressed and purified in Escherichia coli. Functional analysis studies revealed that rCRT/39-272 has potent immunostimulatory activities in both activating human monocytes and B cells to secrete cytokines. rCRT/39-272 can drive the activation of bone marrow derived DC in TLR4/CD14 dependent way, as indicated by secretion of cytokines IL-12/IL-23 (p40) and IL-1β. Exposure of DC to rCRT/39-272 induces P-Akt, suggesting that rCRT/39-272 induces maturation of DC through PI3K/Akt signaling pathway. The results suggest that soluble rCRT/39-272 is a potent stimulatory agent to DC maturation in TLR4/CD14 and PI3K/Akt dependent pathway. It may play important roles in initiating cellular immunity in vivo and the T cell response in vitro. Thus it could be used for study of DC-based tumor vaccines. |
| Ending Page | 7296 |
| Starting Page | 7288 |
| File Format | |
| ISSN | 19405901 |
| e-ISSN | 19405901 |
| Journal | International Journal of Clinical and Experimental Medicine |
| Issue Number | 5 |
| Volume Number | 8 |
| Language | English |
| Publisher | e-Century Publishing Corporation |
| Publisher Date | 2015-05-15 |
| Access Restriction | Open |
| Rights Holder | e-Century Publishing Corporation |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry, Genetics and Molecular Biology |
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