PMID- 19837091 OWN - NLM STAT- MEDLINE DCOM- 20100303 LR - 20091204 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 28 IP - 2 DP - 2009 Dec 11 TI - Comparison of monocyte-derived dendritic cells from colorectal cancer patients, non-small-cell-lung-cancer patients and healthy donors. PG - 542-7 LID - 10.1016/j.vaccine.2009.09.129 [doi] AB - Dendritic cells (DCs) are bone marrow-derived professional antigen presenting cells. Due to their role as potent inducers of immune responses, these cells are widely used as adjuvant in experimental clinical settings for cancer immune therapy. We have developed a DC-based vaccine using autologous blood monocytes loaded with allogeneic tumor cell lysate rich in cancer/testis antigens. This vaccine has at present been tested for activity in three phase II clinical trials including two cohorts of patients with advanced colorectal cancer (CRC) and one cohort of patients with advanced non-small-cell-lung-cancer (NSCLC). In the present paper we retrospectively compare the maturation profile based on surface marker expression on DCs generated from the three patient cohorts and between cancer patient cohorts and a cohort of healthy donors. Vaccines were generated under cGMP conditions and phenotypic profiles of DC were analyzed by flow cytometry and the obtained data were used as a basis to set guideline values for our quality control of GMP produced DC vaccines. Each vaccine batch was analyzed for the expression of the surface maturation and differentiation molecules CD14, CD1a, CD83, CD86, MHC class II and CCR7, and the optimal expression pattern is considered as CD14(low), CD1a, CD83(high), CD86(high), MHC class II(high) and CCR7(high). In accordance with data from other studies including other types of cancer patients, especially breast cancer patients, we found that the maturation status of the DC batches depends on cancer type and correlates with clinical status of cancer patients included. FAU - Kvistborg, P AU - Kvistborg P AD - DanDrit Biotech A/S, Symbion Science Park, Copenhagen, Denmark. FAU - Bechmann, C M AU - Bechmann CM FAU - Pedersen, A W AU - Pedersen AW FAU - Toh, H C AU - Toh HC FAU - Claesson, M H AU - Claesson MH FAU - Zocca, M B AU - Zocca MB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091104 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Cancer Vaccines) SB - IM MH - Cancer Vaccines/*immunology MH - Carcinoma, Non-Small-Cell Lung/*immunology MH - Colorectal Neoplasms/*immunology MH - Dendritic Cells/*cytology/*immunology MH - Flow Cytometry MH - Humans MH - Monocytes/*cytology EDAT- 2009/10/20 06:00 MHDA- 2010/03/04 06:00 CRDT- 2009/10/20 06:00 PHST- 2009/06/30 00:00 [received] PHST- 2009/09/08 00:00 [revised] PHST- 2009/09/29 00:00 [accepted] PHST- 2009/10/20 06:00 [entrez] PHST- 2009/10/20 06:00 [pubmed] PHST- 2010/03/04 06:00 [medline] AID - S0264-410X(09)01489-3 [pii] AID - 10.1016/j.vaccine.2009.09.129 [doi] PST - ppublish SO - Vaccine. 2009 Dec 11;28(2):542-7. doi: 10.1016/j.vaccine.2009.09.129. Epub 2009 Nov 4.