02373nas a2200229   4500000000100000008004100001260001200042100001800054700002100072700001400093700002400107700002000131700002600151700002200177700001400199245016100213856009300374300000900467490000800476520164500484022001402129       2024                            d  c01/20241 ade Carvalho J1 aPascoal-Xavier M1 aAraújo M1 aTeixeira-Carvalho A1 aMartins-Filho O1 aPeruhype-Magalhães V1 aCoelho-Dos-Reis J1 aAraújo M00aDifferent profiles of chemokines, cytokines and cell growth factors in plasma samples from patients with leprosy, leprosy reactions and households contacts.  uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10876044/pdf/1678-8060-mioc-119-e230129.pdf  a1-120 v1193 a<p><strong>Background: </strong>Leprosy is a highly neglected disease that is considered a serious public health problem in many countries. This illness is characterised by a variety of clinical and histopathological manifestations that are related to the patient immune response.</p>

<p><strong>Objectives: </strong>This work aimed evaluate the profile of circulating immune mediators in the plasma from patients classified clinically as paucibacillary (PB), multibacillary (MB), households contacts (HHC), type1 leprosy reaction (T1R), type2 leprosy reaction (T2R) and control individuals without medical history of leprosy (CTL).</p>

<p><strong>Methods: </strong>To assessment of the plasma immune mediators was used multiplex microbeads immunoassay "Luminex".</p>

<p><strong>Findings: </strong>The results showed that patients (PB) had a regulatory-biased profile, while MB revealed a pro-inflammatory trend of highly expressed biomarkers. HHC display conspicuously increased levels in the plasma of the chemokines (CCL2, CCL3, CCL4, CCL5 and CXCL8), pro-inflammatory cytokines (IFN-γ,TNF and IL-1β), modulating cytokines (IL-9 and IL-1Ra) and growth factors (PDGF, G-CSF and IL-2). Interestingly, HHC displayed superior production of IFN-γ as compared to other leprosy groups, indicating a putative protective role for this cytokine during chronic Mycobacterium leprae exposure.</p>

<p><strong>Main Conclusion: </strong>Further investigations are currently underway to elucidate the potential of these mediators as biomarkers applicable to the diagnosis/prognosis of leprosy and also T1R and T2R leprosy reactions.</p>
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