Abstract:
BACKGROUND AIMS:It is important to improve the migratory ability of dendritic cells (DCs) and to increase DC potency for successful DC-based cancer immunotherapy. The intracellular Ca(2+) signaling pathway has an important role on the regulation of DC migration. Our preliminary studies revealed that sarco/endoplasmic reticulum Ca(2+) transport ATPase 2 (SERCA2) expression was inversely related to DC migratory capacity, and the expression level of p-cofilin and SERCA2 on mature DCs showed a counter-trend. METHODS:We selected the appropriate six maturation cocktails on the basis of the expression levels of SERCA2 and p-cofilin and investigated the functional characteristics and migratory capacity of mature DCs. Among the these six maturation cocktails, DCIFN-γ/IL-1β/Poly-I:C showed potent type 1 immune response with interleukin (IL)-12p70 production and strong Th1-polarization, and this DC elicited strong antigen-specific cytotoxic T-lymphocyte responses. RESULTS:Interestingly, DCIFN-γ/IL-1β/Poly-I:C showed lower expression of SERCA2 and higher expression of p-cofilin compared with those matured with the use of other cocktails. In vitro migration assay showed that DCs matured with the use of this maturation cocktail had significantly increased migratory ability compared with αDC1s and other DCs. CONCLUSIONS:Interferon-γ, IL-1β and Poly-I:C maturation cocktail may be used in the field of cancer immunotherapy to generate potent immune-stimulatory DCs with improved type 1 immune response and migration capacity.
journal_name
Cytotherapyjournal_title
Cytotherapyauthors
Choi NR,Lee HJ,Jung SH,Hong CY,Vo MC,Hoang MD,Kim HJ,Lee JJdoi
10.1016/j.jcyt.2015.06.002subject
Has Abstractpub_date
2015-10-01 00:00:00pages
1421-33issue
10eissn
1465-3249issn
1477-2566pii
S1465-3249(15)00932-9journal_volume
17pub_type
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