: Birth prior to 37 completed weeks of gestation is referred to as preterm (PT). Premature newborns are at increased risk of developing infections as neonatal immunity is a developing structure. Monocytes, which are key players after birth, activate inflammasomes. Investigations into the identification of innate immune profiles in premature compared to full-term infants are limited. Our research includes the investigation of monocytes and NK cells, gene expression, and plasma cytokine levels to investigate any potential differences among a cohort of 68 healthy PT and full-term infants. According to high-dimensional flow cytometry, PT infants have higher proportions of CD56+/- CD16+ NK cells and immature monocytes, and lower proportions of classical monocytes. Gene expression revealed lower proportions of inflammasome activation after in vitro monocyte stimulation and the quantification of plasma cytokine levels expressed higher concentrations of alarmin S100A8. Our findings suggest that PT newborns have altered innate immunity and monocyte functional impairment, and pro-inflammatory plasmatic profile. This may explain PT infants' increased susceptibility to infectious disease and should pave the way for novel therapeutic strategies and clinical interventions.

Healthy preterm newborns: Altered innate immunity and impaired monocyte function / De Biasi, Sara; Neroni, Anita; Nasi, Milena; Lo Tartaro, Domenico; Borella, Rebecca; Gibellini, Lara; Lucaccioni, Laura; Bertucci, Emma; Lugli, Licia; Miselli, Francesca; Bedetti, Luca; Neri, Isabella; Ferrari, Fabrizio; Facchinetti, Fabio; Berardi, Alberto; Cossarizza, Andrea. - In: EUROPEAN JOURNAL OF IMMUNOLOGY. - ISSN 1521-4141. - 53:5(2023), pp. 1-15. [10.1002/eji.202250224]

Healthy preterm newborns: Altered innate immunity and impaired monocyte function

De Biasi, Sara;Neroni, Anita;Nasi, Milena;Lo Tartaro, Domenico;Borella, Rebecca;Gibellini, Lara;Lucaccioni, Laura;Bertucci, Emma;Lugli, Licia;Miselli, Francesca;Bedetti, Luca;Neri, Isabella;Facchinetti, Fabio;Berardi, Alberto;Cossarizza, Andrea
2023

Abstract

: Birth prior to 37 completed weeks of gestation is referred to as preterm (PT). Premature newborns are at increased risk of developing infections as neonatal immunity is a developing structure. Monocytes, which are key players after birth, activate inflammasomes. Investigations into the identification of innate immune profiles in premature compared to full-term infants are limited. Our research includes the investigation of monocytes and NK cells, gene expression, and plasma cytokine levels to investigate any potential differences among a cohort of 68 healthy PT and full-term infants. According to high-dimensional flow cytometry, PT infants have higher proportions of CD56+/- CD16+ NK cells and immature monocytes, and lower proportions of classical monocytes. Gene expression revealed lower proportions of inflammasome activation after in vitro monocyte stimulation and the quantification of plasma cytokine levels expressed higher concentrations of alarmin S100A8. Our findings suggest that PT newborns have altered innate immunity and monocyte functional impairment, and pro-inflammatory plasmatic profile. This may explain PT infants' increased susceptibility to infectious disease and should pave the way for novel therapeutic strategies and clinical interventions.
2023
53
5
1
15
Healthy preterm newborns: Altered innate immunity and impaired monocyte function / De Biasi, Sara; Neroni, Anita; Nasi, Milena; Lo Tartaro, Domenico; Borella, Rebecca; Gibellini, Lara; Lucaccioni, Laura; Bertucci, Emma; Lugli, Licia; Miselli, Francesca; Bedetti, Luca; Neri, Isabella; Ferrari, Fabrizio; Facchinetti, Fabio; Berardi, Alberto; Cossarizza, Andrea. - In: EUROPEAN JOURNAL OF IMMUNOLOGY. - ISSN 1521-4141. - 53:5(2023), pp. 1-15. [10.1002/eji.202250224]
De Biasi, Sara; Neroni, Anita; Nasi, Milena; Lo Tartaro, Domenico; Borella, Rebecca; Gibellini, Lara; Lucaccioni, Laura; Bertucci, Emma; Lugli, Licia;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1301305
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