PMID- 24149620 OWN - NLM STAT- MEDLINE DCOM- 20140502 LR - 20211021 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 4 DP - 2013 TI - Perpetual expression of PAMPs necessary for optimal immune control and clearance of a persistent pathogen. PG - 2616 LID - 10.1038/ncomms3616 [doi] AB - Pathogen-associated molecular patterns (PAMPs) are known to be fundamental in instigating immune responses, but their role in influencing these responses beyond their initiation is less well understood. Here, using the protozoan parasite Trypanosoma cruzi, which is deficient in strong PAMPs, we demonstrate a requirement for the continuous expression of PAMPs for optimal anti-pathogen immunity. Although co-inoculating with, temporary anchoring of and transgenic expression of exogenous PAMPs all result in enhanced early adaptive immune responses, only the continuous expression of bacterial PAMPs on transgenic T. cruzi sustains these responses, resulting in enhanced pathogen clearance. These findings demonstrate that PAMPs function to potentiate adaptive immune responses well beyond their initiation and may determine the efficiency of control of pathogens capable of long-term persistence. FAU - Kurup, Samarchith P AU - Kurup SP AD - Department of Cellular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602, USA. FAU - Tarleton, Rick L AU - Tarleton RL LA - eng GR - R01 AI022070/AI/NIAID NIH HHS/United States GR - R01 AI089952/AI/NIAID NIH HHS/United States GR - AI-089952/AI/NIAID NIH HHS/United States GR - AI-22070/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (Antigens, Bacterial) RN - 0 (Antigens, Protozoan) RN - 0 (Porins) RN - 0 (porin protein, Neisseria) RN - 12777-81-0 (Flagellin) SB - IM MH - Adaptive Immunity MH - Animals MH - Antigens, Bacterial/genetics/*immunology MH - Antigens, Protozoan/genetics/*immunology MH - Chagas Disease/*immunology/parasitology MH - Disease Models, Animal MH - Female MH - Flagellin/genetics/immunology MH - Gene Expression/*immunology MH - Mice MH - Mice, Inbred C57BL MH - Porins/genetics/immunology MH - Signal Transduction MH - Transfection MH - Trypanosoma cruzi/genetics/*immunology PMC - PMC4161029 MID - NIHMS525197 COIS- Conflict of interests: The authors declare no competing financial interests. EDAT- 2013/10/24 06:00 MHDA- 2014/05/03 06:00 PMCR- 2014/09/11 CRDT- 2013/10/24 06:00 PHST- 2013/06/03 00:00 [received] PHST- 2013/09/16 00:00 [accepted] PHST- 2013/10/24 06:00 [entrez] PHST- 2013/10/24 06:00 [pubmed] PHST- 2014/05/03 06:00 [medline] PHST- 2014/09/11 00:00 [pmc-release] AID - ncomms3616 [pii] AID - 10.1038/ncomms3616 [doi] PST - ppublish SO - Nat Commun. 2013;4:2616. doi: 10.1038/ncomms3616.