PMID- 29033933 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1664-3224 (Print) IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 8 DP - 2017 TI - Monocyte Chemotactic Protein 1 in Plasma from Soluble Leishmania Antigen-Stimulated Whole Blood as a Potential Biomarker of the Cellular Immune Response to Leishmania infantum. PG - 1208 LID - 10.3389/fimmu.2017.01208 [doi] LID - 1208 AB - New biomarkers are needed to identify asymptomatic Leishmania infection as well as immunity following vaccination or treatment. With the aim of finding a robust biomarker to assess an effective cellular immune response, monocyte chemotactic protein 1 (MCP-1) was examined in plasma from soluble Leishmania antigen (SLA)-stimulated whole blood collected from subjects living in a Leishmania infantum-endemic area. MCP-1, expressed 110 times more strongly than IL-2, identified 87.5% of asymptomatic subjects and verified some asymptomatic subjects close to the cutoff. MCP-1 was also significantly elevated in all patients cured of visceral leishmaniasis (VL), unlike IL-2, indicating the specific memory response generated against Leishmania. These results show MCP-1 to be a robust candidate biomarker of immunity that could be used as a marker of cure and to both select and follow the population in vaccine phase I-III human clinical trials with developed rapid, easy-to-use field tools. FAU - Ibarra-Meneses, Ana V AU - Ibarra-Meneses AV AD - WHO Collaborating Centre for Leishmaniasis, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Madrid, Spain. FAU - Sanchez, Carmen AU - Sanchez C AD - WHO Collaborating Centre for Leishmaniasis, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Madrid, Spain. FAU - Alvar, Jorge AU - Alvar J AD - Drugs for Neglected Diseases Initiative (DNDi), Geneva, Switzerland. FAU - Moreno, Javier AU - Moreno J AD - WHO Collaborating Centre for Leishmaniasis, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Madrid, Spain. FAU - Carrillo, Eugenia AU - Carrillo E AD - WHO Collaborating Centre for Leishmaniasis, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Madrid, Spain. LA - eng PT - Journal Article DEP - 20170929 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 PMC - PMC5626820 OTO - NOTNLM OT - asymptomatic infection OT - biomarker OT - chemokines OT - cytokines OT - leishmaniasis OT - monocyte chemotactic protein 1 OT - treatment OT - whole blood assay EDAT- 2017/10/17 06:00 MHDA- 2017/10/17 06:01 PMCR- 2017/01/01 CRDT- 2017/10/17 06:00 PHST- 2017/07/14 00:00 [received] PHST- 2017/09/12 00:00 [accepted] PHST- 2017/10/17 06:00 [entrez] PHST- 2017/10/17 06:00 [pubmed] PHST- 2017/10/17 06:01 [medline] PHST- 2017/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2017.01208 [doi] PST - epublish SO - Front Immunol. 2017 Sep 29;8:1208. doi: 10.3389/fimmu.2017.01208. eCollection 2017.