Open AccessWhen Therapeutic IgA Antibodies Might Come of Age
Author(s) -
Delphine Sterlin,
Guy Gorochov
Publication year - 2020
Publication title -
pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 59
eISSN - 1423-0313
pISSN - 0031-7012
DOI - 10.1159/000510251
Subject(s) - immunology , antibody , rotavirus , immune system , immunoglobulin a , secretory iga , b cell , biology , immunization , virus , medicine , immunoglobulin g
Background: Extensive efforts have been made in optimizing monoclonal immunoglobulin (Ig)G antibodies for use in clinical practice. Accumulating evidence suggests that IgA or anti-FcαRI could also represent an exciting avenue toward novel therapeutic strategies. Summary: Here, we underline that IgA is more effective in recruiting neutrophils for tumor cell killing and is potently active against several pathogens, including rotavirus, poliovirus, influenza virus, and SARS-CoV-2. IgA could also be used to modulate excessive immune responses in inflammatory diseases. Furthermore, secretory IgA is emerging as a major regulator of gut microbiota, which impacts intestinal homeostasis and global health as well. As such, IgA could be used to promote a healthy microbiota in a therapeutic setting. Key messages: IgA combines multifaceted functions that can be desirable for immunotherapy.