PMID- 25343623 OWN - NLM STAT- MEDLINE DCOM- 20151224 LR - 20190223 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 10 DP - 2014 TI - Cytokines in acute chikungunya. PG - e111305 LID - 10.1371/journal.pone.0111305 [doi] LID - e111305 AB - INTRODUCTION: Acute chikungunya (CHIKV) is predominantly an acute onset of excruciatingly painful, self-limiting musculoskeletal (MSK) arbovirus illness and this was further reported by us during the 2006 Indian epidemic [Chopra et al. Epidemiol Infect 2012]. Selected serum cytokines profile in subjects within one month of onset of illness is being presented. METHODS: Out of 509 clinical CHIKV cases (43% population) identified during a rural population survey, 225 subjects consented blood investigations. 132 examined within 30 days of febrile onset are the study cohort. Anti-CHIKV IgM and IgG antibodies tested by immunochromatography and indirect immunofluorescence respectively. Interferons (IFN)-alpha, -beta and -gamma, Interferon Gamma-Induced Protein-10 (CXCL-10/IP-10), Tumor Necrosis Factor-alpha (TNF-alpha), Interleukin-1beta (IL-1beta), Interleukin-6 (IL-6), Interleukin-13 (IL-13), Monocyte Chemoattractant Protein-1 (MCP-1), Interleukin-4 (IL-4) and Interleukin-10 (IL-10) performed by ELISA. Samples collected from neighboring community a year prior to the epidemic used as healthy controls. RESULTS: Seropositivity for anti-CHIKV IgM and IgG was 65% and 52% respectively. IFN-alpha, IFN-beta, IFN-gamma, CXCL10/IP-10 and IL-1beta showed intense response in early acute phase. Cytokines (particularly TNF-alpha, MCP-1, IL-4, IL-6 and IL-10) was maximum in extended symptomatic phase and remained elevated in recovered subjects. Higher (p<0.05) IFN and IL-4 seen in patients seropositive for anti-CHIKV IgG. Elderly cases (>/=65 years) showed elevated cytokines (except IFN) and anti-CHIKV antibodies near similar to younger subjects. Significant correlations (p<0.05) found between cytokines and clinical features (fatigue, low back ache, myalgia) and anti-CHIKV antibodies. CONCLUSION: An intense cytokine milieu was evident in the early and immediate persistent symptomatic phase and in recovered subjects. Early persistent IgM and lower IgG to anti-CHKV and intense Th2 cytokine phenotype seem to be associated with delay in resolution of MSK symptoms. Intriguingly, maximum TNF-alpha, IL-6 and IL-13 with low anti-CHIKV IgM response found in subjects recovered from CHIKV within one month of illness. FAU - Venugopalan, Anuradha AU - Venugopalan A AD - Center for Rheumatic Diseases, Pune, India. FAU - Ghorpade, Ravi P AU - Ghorpade RP AD - Center for Rheumatic Diseases, Pune, India. FAU - Chopra, Arvind AU - Chopra A AD - Center for Rheumatic Diseases, Pune, India. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141024 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Antibodies, Viral) RN - 0 (Cytokines) SB - IM MH - Acute Disease MH - Acute-Phase Reaction/immunology MH - Adult MH - Age Factors MH - Aged MH - Antibodies, Viral/blood MH - Antibody Formation/immunology MH - Case-Control Studies MH - Chikungunya Fever/*blood/immunology MH - Cohort Studies MH - Cytokines/*blood MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Regression Analysis MH - Surveys and Questionnaires MH - Treatment Outcome MH - Young Adult PMC - PMC4208842 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/10/25 06:00 MHDA- 2015/12/25 06:00 PMCR- 2014/10/24 CRDT- 2014/10/25 06:00 PHST- 2013/05/21 00:00 [received] PHST- 2014/09/30 00:00 [accepted] PHST- 2014/10/25 06:00 [entrez] PHST- 2014/10/25 06:00 [pubmed] PHST- 2015/12/25 06:00 [medline] PHST- 2014/10/24 00:00 [pmc-release] AID - PONE-D-13-20974 [pii] AID - 10.1371/journal.pone.0111305 [doi] PST - epublish SO - PLoS One. 2014 Oct 24;9(10):e111305. doi: 10.1371/journal.pone.0111305. eCollection 2014.