PMID- 21075456 OWN - NLM STAT- MEDLINE DCOM- 20110518 LR - 20110110 IS - 1873-2534 (Electronic) IS - 0165-2427 (Linking) VI - 139 IP - 2-4 DP - 2011 Feb 15 TI - Porcine blood mononuclear cell cytokine responses to PAMP molecules: comparison of mRNA and protein production. PG - 296-302 LID - 10.1016/j.vetimm.2010.10.016 [doi] AB - Pathogen-associated molecular patterns (PAMPs) are conserved molecules of microorganisms inducing innate immune cells to secrete distinct patterns of cytokines. In veterinary species, due to a lack of specific antibodies, cytokines are often monitored as expressed mRNA only. This study investigated the induction of IFN-alpha, IL-12 p40, IL-1beta, TNF-alpha, IL-6 and IL-10 by PAMP-molecules [CpG oligonucleotide D19 (CpG), peptidoglycan (PGN), lipopolysaccharide (LPS), Pam(3)Cys and poly-U] in porcine blood mononuclear cells (BMC) within a 24 h period. As expected, cytokine responses were PAMP-specific, CpG inducing IFN-alpha and IL-12 p40, and PGN, LPS and Pam(3)Cys inducing varying amounts of IL-12 p40, IL-1beta, TNF-alpha, IL-6 and IL-10. Surprisingly, the ssRNA-mimic poly-U induced IL-6 and IL-1beta only. Using CpG, PGN and LPS, the kinetics of cytokine production measured as mRNA (reverse transcription (RT)-qPCR) and protein (ELISA), respectively, correlated well, mRNA responses preceding protein responses. With the exception of IL-1beta and IL-6, mRNA-responses were transient, whereas protein responses, except for TNF-alpha, followed saturation kinetics. Remarkably, LPS-induced TNF-alpha mRNA was not followed by a protein response. These results provide guidelines concerning the timing and use of protein and mRNA determinations for the characterization of porcine cytokine responses to PAMPs, although given the low number of animals used here results are preliminary and need confirmation in a larger study. CI - Copyright A(c) 2010 Elsevier B.V. All rights reserved. FAU - Sorensen, Nanna S AU - Sorensen NS AD - Innate Immunology Group, Division of Veterinary Diagnostics and Research, National Veterinary Institute, Technical University of Denmark, Bulowsvej 27, DK-1790 Copenhagen V, Denmark. nsor@vet.dtu.dk FAU - Skovgaard, Kerstin AU - Skovgaard K FAU - Heegaard, Peter M H AU - Heegaard PM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101023 PL - Netherlands TA - Vet Immunol Immunopathol JT - Veterinary immunology and immunopathology JID - 8002006 RN - 0 (Cytokines) RN - 0 (Lipopolysaccharides) RN - 0 (Oligonucleotides) RN - 0 (Peptides) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - Cells, Cultured MH - Cytokines/genetics/*metabolism MH - Enzyme-Linked Immunosorbent Assay MH - Leukocytes, Mononuclear/immunology/*metabolism MH - Lipopolysaccharides/immunology MH - Oligonucleotides/*immunology MH - Peptides/*immunology MH - RNA, Messenger/genetics/*metabolism MH - *Swine MH - Time Factors EDAT- 2010/11/16 06:00 MHDA- 2011/05/19 06:00 CRDT- 2010/11/16 06:00 PHST- 2009/12/22 00:00 [received] PHST- 2010/09/09 00:00 [revised] PHST- 2010/10/14 00:00 [accepted] PHST- 2010/11/16 06:00 [entrez] PHST- 2010/11/16 06:00 [pubmed] PHST- 2011/05/19 06:00 [medline] AID - S0165-2427(10)00352-1 [pii] AID - 10.1016/j.vetimm.2010.10.016 [doi] PST - ppublish SO - Vet Immunol Immunopathol. 2011 Feb 15;139(2-4):296-302. doi: 10.1016/j.vetimm.2010.10.016. Epub 2010 Oct 23.