PMID- 33786883 OWN - NLM STAT- MEDLINE DCOM- 20210722 LR - 20210722 IS - 1537-2995 (Electronic) IS - 0041-1132 (Linking) VI - 61 IP - 6 DP - 2021 Jun TI - Rapid generation of monocyte-derived antigen-presenting cells with dendritic cell-like properties. PG - 1845-1855 LID - 10.1111/trf.16385 [doi] AB - BACKGROUND: One of the major challenges in cellular therapy is the establishment and validation of simple and fast production protocols meeting good manufacturing practice (GMP) requirements. Dendritic cells (DCs) are of particular therapeutic interest, due to their critical role in T cell response initiation and regulation. Conventional wisdom states that DC generation from monocytes is a time-consuming protocol, taking up to 7-9 days. STUDY DESIGN AND METHODS: This study systematically screened and validated numerous culture components and conditions to identify the minimal requirements, which can give rise to functional monocyte-derived antigen-presenting cells (MoAPCs) in less than 48 h (36 h MoAPC). A total of 36 h MoAPCs were evaluated in terms of surface marker expression, endocytic capability, and induction of antigen-specific T cell expansion via flow cytometry. RESULTS: Screening of media compositions, glucose concentrations, and surface marker kinetics, particularly DC-SIGN as a DC-specific marker, allowed the generation of DC-like APCs in 36 h (36 h MoAPCs). A total of 36 h MoAPCs displayed a similar phenotype to 48 h MoAPC and standard 7 d MoDCs in terms of HLA-DP,DQ,DR, CD83, and DC-SIGN expression, while CD1a was preferentially expressed in standard MoDCs. Functional evaluation revealed that 36 h MoAPCs displayed reduced endocytosis capabilities and IL-12p70 production. However, 36 h MoAPCs were able to induce T cell expansion both in an allogenic and antigen-specific setting. CONCLUSION: Our results indicate that mature 36 h MoAPCs possess DC-like capabilities by inducing antigen-specific T cell responses. This study has important implications for the generation of DC-based cellular therapies, allowing a more cost and time-efficient generation of APCs. CI - (c) 2021 The Authors. Transfusion published by Wiley Periodicals LLC. on behalf of AABB. FAU - Cunningham, Sarah AU - Cunningham S AUID- ORCID: 0000-0001-8692-1211 AD - Department of Transfusion Medicine and Hemostaseology, University Hospital Erlangen, Erlangen, Germany. FAU - Hackstein, Holger AU - Hackstein H AUID- ORCID: 0000-0001-9722-8180 AD - Department of Transfusion Medicine and Hemostaseology, University Hospital Erlangen, Erlangen, Germany. LA - eng GR - SFB Transregio 84 Project A2 to HH/Deutsche Forschungsgemeinschaft/ GR - reserach equipment grant #INST 410/114-1 FUGG to HH/Deutsche Forschungsgemeinschaft/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210330 PL - United States TA - Transfusion JT - Transfusion JID - 0417360 RN - 0 (Antigens) RN - 0 (Culture Media) RN - 0 (Cytokines) SB - IM MH - Antigen-Presenting Cells/*cytology/metabolism MH - Antigens/metabolism MH - Cell Culture Techniques/methods MH - Cell Differentiation MH - Cell Proliferation MH - Cells, Cultured MH - Culture Media/metabolism MH - Cytokines/metabolism MH - Dendritic Cells/*cytology/metabolism MH - Humans MH - Monocytes/*cytology/metabolism MH - T-Lymphocytes/cytology/metabolism OTO - NOTNLM OT - 36 h MoAPCs OT - 48 h MoAPC OT - antigen-presenting cells OT - monocytes EDAT- 2021/04/01 06:00 MHDA- 2021/07/23 06:00 CRDT- 2021/03/31 06:59 PHST- 2021/03/12 00:00 [revised] PHST- 2020/09/14 00:00 [received] PHST- 2021/03/17 00:00 [accepted] PHST- 2021/04/01 06:00 [pubmed] PHST- 2021/07/23 06:00 [medline] PHST- 2021/03/31 06:59 [entrez] AID - 10.1111/trf.16385 [doi] PST - ppublish SO - Transfusion. 2021 Jun;61(6):1845-1855. doi: 10.1111/trf.16385. Epub 2021 Mar 30.