PMID- 18987361 OWN - NLM STAT- MEDLINE DCOM- 20090501 LR - 20221109 IS - 1528-0020 (Electronic) IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 113 IP - 13 DP - 2009 Mar 26 TI - Proinflammatory tachykinins that signal through the neurokinin 1 receptor promote survival of dendritic cells and potent cellular immunity. PG - 3017-26 LID - 10.1182/blood-2008-06-163121 [doi] AB - Dendritic cells (DCs) are the preferred targets for immunotherapy protocols focused on stimulation of cellular immune responses. However, regardless of initial promising results, ex vivo generated DCs do not always promote immune-stimulatory responses. The outcome of DC-dependent immunity is regulated by proinflammatory cytokines and neuropeptides. Proinflammatory neuropeptides of the tachykinin family, including substance P (SP) and hemokinin-1 (HK-1), bind the neurokinin 1 receptor (NK1R) and promote stimulatory immune responses. Nevertheless, the ability of pro-inflammatory tachykinins to affect the immune functions of DCs remains elusive. In the present work, we demonstrate that mouse bone marrow-derived DCs (BMDCs) generated in the presence of granulocyte macrophage-colony stimulating factor (GM-CSF) and interleukin-4 (IL-4), express functional NK1R. Signaling via NK1R with SP, HK-1, or the synthetic agonist [Sar(9)Met(O(2))(11)]-SP rescues DCs from apoptosis induced by deprivation of GM-CSF and IL-4. Mechanistic analysis demonstrates that NK1R agonistic binding promotes DC survival via PI3K-Akt signaling cascade. In adoptive transfer experiments, NK1R-signaled BMDCs loaded with Ag exhibit increased longevity in draining lymph nodes, resulting in enhanced and prolonged effector cellular immunity. Our results contribute to the understanding of the interactions between the immune and nervous systems that control DC function and present a novel approach for ex vivo-generation of potent immune-stimulatory DCs. FAU - Janelsins, Brian M AU - Janelsins BM AD - Department of Dermatology, University of Pittsburgh School of Medicine, PA, USA. FAU - Mathers, Alicia R AU - Mathers AR FAU - Tkacheva, Olga A AU - Tkacheva OA FAU - Erdos, Geza AU - Erdos G FAU - Shufesky, William J AU - Shufesky WJ FAU - Morelli, Adrian E AU - Morelli AE FAU - Larregina, Adriana T AU - Larregina AT LA - eng GR - T32 CA082084/CA/NCI NIH HHS/United States GR - R01 HL075512/HL/NHLBI NIH HHS/United States GR - R01 CA100893/CA/NCI NIH HHS/United States GR - R01-HL077545/HL/NHLBI NIH HHS/United States GR - R01-HL075512/HL/NHLBI NIH HHS/United States GR - R01-CA100893/CA/NCI NIH HHS/United States GR - T32-CA82084/CA/NCI NIH HHS/United States GR - R01 HL077545/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20081105 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (CD40 Antigens) RN - 0 (Inflammation Mediators) RN - 0 (Receptors, Neurokinin-1) RN - 0 (Tachykinins) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.11.1 (Oncogene Protein v-akt) SB - IM MH - Adoptive Transfer MH - Animals MH - Apoptosis/drug effects/immunology MH - Bone Marrow Cells/metabolism MH - CD40 Antigens/metabolism/physiology MH - Cell Survival/drug effects/genetics MH - Dendritic Cells/*drug effects/metabolism/physiology/transplantation MH - Enzyme Activation/drug effects MH - Immunity, Cellular/*drug effects/genetics/physiology MH - Inflammation Mediators/metabolism/*pharmacology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Oncogene Protein v-akt/metabolism MH - Phosphatidylinositol 3-Kinases/metabolism MH - Receptors, Neurokinin-1/agonists/genetics/metabolism/*physiology MH - Signal Transduction/drug effects/genetics/immunology MH - Tachykinins/metabolism/*pharmacology PMC - PMC2662645 EDAT- 2008/11/07 09:00 MHDA- 2009/05/02 09:00 PMCR- 2010/03/26 CRDT- 2008/11/07 09:00 PHST- 2008/11/07 09:00 [pubmed] PHST- 2009/05/02 09:00 [medline] PHST- 2008/11/07 09:00 [entrez] PHST- 2010/03/26 00:00 [pmc-release] AID - S0006-4971(20)39421-0 [pii] AID - 2008/163121 [pii] AID - 10.1182/blood-2008-06-163121 [doi] PST - ppublish SO - Blood. 2009 Mar 26;113(13):3017-26. doi: 10.1182/blood-2008-06-163121. Epub 2008 Nov 5.