Immune development differs between preterm newborns fed mothers’ own milk and donor milk
Extremely preterm infants are at risk of immune-mediated complications such as infections and inflammatory conditions like bronchopulmonary dysplasia and necrotizing enterocolitis. Preterm infants are immunologically distinct from term infants at birth, but subsequently undergo adaptive postnatal changes resulting in immunological convergence during their first 3 months. Here, we performed a systems-level analysis of immune development in 72 preterm infants born as early as 22 weeks to investigate factors associated with variation. We find similar immune trajectories during early postnatal immune development but occurring more slowly in infants born at 22-24 weeks. Immune development showed a greater resemblance to that of term-born children in preterm infants fed mother's own milk compared to donor milk. This developmental normalization was manifested by NK cell development and was not explained by differences in microbial colonization between feeding groups, possibly suggesting direct effects of bioactive milk molecules on developing immune cells in extremely preterm infants.
Authors
- Anna James (ORCID: https://orcid.org/0000-0003-2698-8419)
- Anders Nilsson (ORCID: https://orcid.org/0000-0003-3631-0783)
- Ann Hellström (ORCID: https://orcid.org/0000-0002-9259-1244)
- Pia Lundgren (ORCID: https://orcid.org/0000-0002-7731-1988)
- Wen Zhong (ORCID: https://orcid.org/0000-0002-7422-6104)
- Aron Arzoomand
- Nele Brusselaers (ORCID: https://orcid.org/0000-0003-0137-447X)
- Tadepally Lakshmikanth (ORCID: https://orcid.org/0000-0001-7256-5770)
- Ingrid Hansen‐Pupp (ORCID: https://orcid.org/0000-0003-3573-3311)
- Hanna Danielsson (ORCID: https://orcid.org/0000-0001-6959-7704)
- Ziyang Tan (ORCID: https://orcid.org/0000-0002-7205-4978)
- Jaromír Mikeš (ORCID: https://orcid.org/0000-0002-9941-7855)
- Karin Sävman
- Anders Elfvin (ORCID: https://orcid.org/0000-0002-1912-9563)
- Mathias Uhlén (ORCID: https://orcid.org/0000-0002-4858-8056)
- Qi Chen (ORCID: https://orcid.org/0000-0002-2536-763X)
- Dirk Wackernagel (ORCID: https://orcid.org/0000-0001-9887-5160)
- Petter Brodin (ORCID: https://orcid.org/0000-0002-8103-0046)
- Theo Portlock (ORCID: https://orcid.org/0000-0001-5971-3847)
- Yang Chen
- Jun Wang (ORCID: https://orcid.org/0000-0001-7676-0493)
- David Ley (ORCID: https://orcid.org/0000-0002-7498-6883)
Institutions
- Linköping University (SE)
- Karolinska University Hospital (SE)
- University of Antwerp (BE)
- Lund University (SE)
- Science for Life Laboratory (SE)
- Sahlgrenska University Hospital (SE)
- Hammersmith Hospital (GB)
- Karolinska Institutet (SE)
- Stockholm South General Hospital (SE)
- Region Västra Götaland (SE)
- Sachs' Children and Youth Hospital (SE)
- Skåne University Hospital (SE)
- MRC London Institute of Medical Sciences (GB)
- Imperial College London (GB)
- KTH Royal Institute of Technology (SE)
- University of Gothenburg (SE)
Publication Details
- Journal
- iScience
- Published
- 2025-06-17
- DOI
- https://doi.org/10.1016/j.isci.2025.112918
- Citations
- 2
- Primary Topic
- Infant Nutrition and Health
- Type
- article
- Field-Weighted Citation Impact
- 2.24
Funders
- Wellcome Trust
- Svenska Sällskapet för Medicinsk Forskning
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet
- Medical Research Foundation
- HORIZON EUROPE European Research Council