Immune response to purified protein derivative in infants from helminth-sensitized mothers — A cases series

Maternal exposure to antibodies, cytokines or parasitic antigens during gestation may alter the degree of immune competence of offspring. Here we describe the production of cytokines and chemokines, and the ability to activation of the immune response in infants from mothers sensitized to helminths....

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Published in:Journal of microbiology, immunology and infection immunology and infection, 2020-08, Vol.53 (4), p.634-639
Main Authors: de Souza Fernandes, Erica, Correia do Nascimento, Wheverton Ricardo, Alves dos Santos, Patrícia, de Oliveira Nóbrega, Cassia Gisele, Barros Lorena, Virginia, Simões Barbosa, Constança, Medeiros, Décio, Wanick Sarinho, Silvia, Assis Costa, Vlaudia Maria, Oliveira de Souza, Valdênia Maria
Format: Article
Language:English
Subjects:
BCG
Helminthiases
Immunomodulation
Offspring
Pregnant women
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Summary:Maternal exposure to antibodies, cytokines or parasitic antigens during gestation may alter the degree of immune competence of offspring. Here we describe the production of cytokines and chemokines, and the ability to activation of the immune response in infants from mothers sensitized to helminths. It were selected five infants born to helminth-seropositive mothers but who were negative for current helminth infection. Whole blood was cultured without stimulus, with phytohemagglutinin mitogen (5 μg/ml, 24 h) or with purified protein derivative (PPD) (1 μg/ml, 24 h), and the supernatant was assessed for presence of Th1/Th2 cytokines (IFN-γ, TNF-α, IL-10, IL-5, IL-4 and IL-2) and chemokines (CXCL10, CCL2, CXCL9, CCL5 and CXCL8) by cytometric bead array. All infants produced CCL5. Two infants demonstrated a mixed profile of Th1 (CXCL9) and Th2 (CCL2) chemokines in the presence of CXCL10, while one infant showed skewing towards Th2 without CXCL10 and two of them had been impaired immune response (children from sensitized to Schistosoma mansoni mothers). Infants with Th1 and Th2 profile chemokines demonstrated a good response to vaccination, indicated by CXCL10 levels, but not infants predominantly Th2-skewed profile. These results highlight that children from mothers sensitized to S. mansoni may lead to ineffective immune response to PPD, while mothers sensitized to Ascaris lumbricoides showed no such impairment.
ISSN:1684-1182
1995-9133
DOI:10.1016/j.jmii.2018.10.009