PMID- 20574121 OWN - NLM STAT- MEDLINE DCOM- 20110216 LR - 20231213 IS - 1735-1383 (Print) IS - 1735-1383 (Linking) VI - 7 IP - 2 DP - 2010 Jun TI - Comparison of several maturation inducing factors in dendritic cell differentiation. PG - 83-7 AB - BACKGROUND: Dendritic cells (DCs) are professional antigen presenting cells that have an important role in the initiation of immune response. The use of maturation factors in dendritic cell differentiation provides a promising approach in immunotherapy. OBJECTIVE: In this study, we compared tumor necrosis factor-alpha, polyribocytidylic acid, lipopolysacharide and CpG oligonucleotides in inducing dendritic cell maturation. METHODS: We generated immature dendritic cells with GM-CSF in combination with IL-4 from peripheral blood mononuclear adherent cells and used tumor necrosis factor-alpha, polyribocytidylic acid, lipopolysacharide and CpG for the induction of dendritic cell maturation. CD83 maturation marker on the dendritic cells was analyzed by flowcytometry after 7 days. In addition, mixed leukocyte reaction between dendritic cells and T cells was performed by MTT proliferation assay. RESULTS: Flow cytometry results demonstrated a comparable high level of CD83 expression on the mature dendritic cells generated by TNF-alpha, CpG, Poly I:C, and LPS treatment of the immature dendritic cells. However, a significantly poorer proliferation of lymphocytes cocultured with the Poly I:C-treated DCs was observed compared to the CpG-treated DCs in mixed leukocyte reaction (p=0.026). Conversely, a significantly stronger proliferation of lymphocytes was observed when cocultured with TNF-alpha-treated DCs compared to the LPS-treated DCs (p=0.025). CONCLUSION: Our results indicated that all of studied maturation inducing factors can be used in DC maturation but TNF-alpha and CpG were the preferred in vitro maturation factors. It is concluded that maturation of dendritic cells by CpG motif and TNF-alpha can be used to regulate immune responses. FAU - Abediankenari, Saeid AU - Abediankenari S AD - Department of Microbiology and Immunology, Mazandaran University of Medical Sciences, Sari, Iran. abedianks@razi.tums.ac.ir FAU - Yousefzadeh, Yousef AU - Yousefzadeh Y FAU - Azadeh, Hossein AU - Azadeh H FAU - Vahedi, Mohammad AU - Vahedi M LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Iran TA - Iran J Immunol JT - Iranian journal of immunology : IJI JID - 101282932 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation) RN - 0 (CPG-oligonucleotide) RN - 0 (Immunoglobulins) RN - 0 (Lipopolysaccharides) RN - 0 (Membrane Glycoproteins) RN - 0 (Oligodeoxyribonucleotides) RN - 0 (Tumor Necrosis Factor-alpha) RN - O84C90HH2L (Poly I-C) SB - IM MH - Antigen Presentation/drug effects MH - Antigens, CD/genetics/metabolism MH - Antigens, Differentiation/genetics/metabolism MH - CD4-Positive T-Lymphocytes/cytology/immunology/*metabolism MH - Cell Differentiation/drug effects MH - Cells, Cultured MH - Coculture Techniques MH - Dendritic Cells/cytology/*drug effects/immunology/metabolism MH - Humans MH - Immunoglobulins/genetics/metabolism MH - Lipopolysaccharides/pharmacology MH - Lymphocyte Activation/drug effects MH - Lymphocyte Culture Test, Mixed MH - Membrane Glycoproteins/genetics/metabolism MH - Oligodeoxyribonucleotides/*pharmacology MH - Poly I-C/pharmacology MH - Tumor Necrosis Factor-alpha/*pharmacology MH - CD83 Antigen EDAT- 2010/06/25 06:00 MHDA- 2011/02/17 06:00 CRDT- 2010/06/25 06:00 PHST- 2010/06/25 06:00 [entrez] PHST- 2010/06/25 06:00 [pubmed] PHST- 2011/02/17 06:00 [medline] AID - 03 [pii] PST - ppublish SO - Iran J Immunol. 2010 Jun;7(2):83-7.