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Updated: May 11, 2026

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function
Published on: October 15, 2013
Secretory IgA specific for MPER can protect from HIV-1 infection in vitro
Abstract:
This preliminary study was performed to assess the neutralization activity of anti-MPER-secretory IgA (SIgA) from parotid saliva in 88 HIV+ patients, in five exposed seronegative (ESN) and in five seronegative volunteers. 48.9% of the HIV+ patients and 100% of ESN patients showed antigp41 SIgA. 25.6% of anti-MPER SIgA from HIV+ patients and 100% from ESN patients neutralized efficiently HIV-1 primary isolate SF162 (IC 50). The neutralization activity is maintained for much lower concentrations in ESN than in HIV+ secretions.
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