Expression of CD1a and Type-1 Polarization Are Dissociated in Human Monocyte-Derived Dendritic Cells
Autor: | Evelyn Bauer, Catherine Wood, Olivier Gasser, Brigitta Mester, Ian F. Hermans |
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Rok vydání: | 2015 |
Předmět: |
lcsh:Medicine
Monocytes Flow cytometry Antigens CD1 Plasma Antigen In vivo medicine Humans lcsh:Science Multidisciplinary biology medicine.diagnostic_test Immunogenicity lcsh:R Cell Polarity Dendritic Cells Dendritic cell Natural killer T cell Cell biology Phenotype CD1D biology.protein lcsh:Q Ex vivo Research Article |
Zdroj: | PLoS ONE, Vol 10, Iss 10, p e0140432 (2015) PLoS ONE |
ISSN: | 1932-6203 |
Popis: | Ex vivo generated monocyte-derived dendritic cell (moDC)-vaccines have long been touted as promising immunotherapeutic agents for cancer treatment, although the response rate generally remains low. The reasons for this are still unclear and confounded by the diversity in manufacturing protocols that may affect moDC function. Preclinical studies have shown that the stimulatory function of dendritic cells can be improved by engaging invariant NKT cells in vivo through the presentation of the glycolipid alpha-galactosylceramide via CD1d. However, expression of CD1d on moDC has been shown to be negatively correlated with expression of CD1a, which in turn has been suggested to be a surrogate marker for IL-12 secreting type-1 polarized moDC, the preferred functional characteristics for cancer vaccines. Here we challenge this notion by showing that plasma-derived lipids drive functional levels of CD1d expression, while CD1a expression can vary considerably in these cells without being correlated with a loss of polarization or immunogenicity. |
Databáze: | OpenAIRE |
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