PMID- 21932134 OWN - NLM STAT- MEDLINE DCOM- 20120511 LR - 20240426 IS - 1432-0851 (Electronic) IS - 0340-7004 (Print) IS - 0340-7004 (Linking) VI - 61 IP - 3 DP - 2012 Mar TI - Inclusive estimation of complex antigen presentation functions of monocyte-derived dendritic cells differentiated under normoxia and hypoxia conditions. PG - 409-24 LID - 10.1007/s00262-011-1112-5 [doi] AB - Dendritic cells (DCs) generated from monocytes under 20% O2 are now used as therapeutic tools for cancer patients. However, the O2 concentration is between 3 and 0.5% in most tissues. We evaluated these complicated functions of DCs under oxygen tensions mimicking in vivo situations. Immature DCs (imDCs) were generated from monocytes using IL-4 and GM-CSF under normoxia (20% O2; N-imDCs) or hypoxia (1% O2; H-imDCs). Mature DCs (mDCs) were induced with LPS. DCs were further exposed to normoxia (N/N-DCs) or hypoxia (N/H-DCs and H/H-DCs) conditions. Using a 2-D culture system, H-DCs were smaller in size than N-DCs, and H/H-DCs exhibited higher allo-T cell stimulation ability than N/N-DCs and N/H-DCs. On the other hand, motility and phagocytic ability of H/H-DCs were significantly lower than those of N/H-DCs and N/N-DCs. In a 3-D culture system, however, maturation of H/H-imDCs and N/H-imDCs was suppressed compared with N/N-imDCs as a result of their decreased motility and phagocytosis. Interestingly, silencing of HIF-1alpha by RNA interference decreased CD83 expression without affecting any antigen presentation abilities except for the ability to stimulate the allo-T cell population. Our data could help our understanding of DCs, especially therapeutic DCs, in vivo. FAU - Ogino, Toshitatsu AU - Ogino T AD - Department of Cancer Therapy and Research, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. FAU - Onishi, Hideya AU - Onishi H FAU - Suzuki, Hiroyuki AU - Suzuki H FAU - Morisaki, Takashi AU - Morisaki T FAU - Tanaka, Masao AU - Tanaka M FAU - Katano, Mitsuo AU - Katano M LA - eng PT - Journal Article DEP - 20110920 PL - Germany TA - Cancer Immunol Immunother JT - Cancer immunology, immunotherapy : CII JID - 8605732 RN - 0 (Antigens, CD) RN - 0 (HIF1A protein, human) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Immunoglobulins) RN - 0 (Lipopolysaccharides) RN - 0 (Membrane Glycoproteins) RN - 207137-56-2 (Interleukin-4) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) RN - S88TT14065 (Oxygen) SB - IM MH - Antigen Presentation/*immunology MH - Antigens, CD/immunology/metabolism MH - Cell Culture Techniques MH - Cell Differentiation/drug effects/*immunology MH - Cell Movement/immunology MH - Cell Proliferation MH - Cells, Cultured MH - Dendritic Cells/*immunology/metabolism MH - Flow Cytometry MH - Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology MH - Humans MH - Hypoxia MH - Hypoxia-Inducible Factor 1, alpha Subunit/genetics/immunology/metabolism MH - Immunoblotting MH - Immunoglobulins/immunology/metabolism MH - Interleukin-4/pharmacology MH - Lipopolysaccharides/pharmacology MH - Membrane Glycoproteins/immunology/metabolism MH - Models, Immunological MH - Monocytes/*immunology/metabolism MH - Oxygen/pharmacology MH - Phagocytosis/immunology MH - RNA Interference MH - Reverse Transcriptase Polymerase Chain Reaction MH - T-Lymphocytes/immunology/metabolism MH - CD83 Antigen PMC - PMC11029581 EDAT- 2011/09/21 06:00 MHDA- 2012/05/12 06:00 PMCR- 2011/09/20 CRDT- 2011/09/21 06:00 PHST- 2011/05/10 00:00 [received] PHST- 2011/09/06 00:00 [accepted] PHST- 2011/09/21 06:00 [entrez] PHST- 2011/09/21 06:00 [pubmed] PHST- 2012/05/12 06:00 [medline] PHST- 2011/09/20 00:00 [pmc-release] AID - 1112 [pii] AID - 10.1007/s00262-011-1112-5 [doi] PST - ppublish SO - Cancer Immunol Immunother. 2012 Mar;61(3):409-24. doi: 10.1007/s00262-011-1112-5. Epub 2011 Sep 20.