Breastfeeding has a lot of health benefits for both mothers and infants. But there is often limited information on how safe a particular medicine is for infants when taken by their breastfeeding mothers. The ConcePTION project has developed an in vitro model to predict how medicines transfer to breast milk. The results provide data that that can improve in vivo study design.
The model is based on human mammary epithelial cells to represent the blood-milk barrier in the mammary gland. Researchers used two types of cells for the model: either primary cultures of human breast cells, or immortalized cell lines derived from breast tissue, to see how these cells transport specific chemicals. The results show that the primary human breast cell model is superior, and retains features such as cell shape and connections, and formed a strong and consistent barrier.
The model can be used to study medicine partitioning in milk, and has the potential to generate evidence to support the use of certain medicines during lactation already at early stages of drug development. Debora La Mantia, PhD student at the University of Bologna, is co-lead author of the study, published in the International Journal of Molecular Sciences.
“Our in vitro model allows the prediction of human milk drug distribution, providing quantitative data that informs researchers for better in vivo study designs, reducing the animal use. It will also help mothers and physicians make evidence-based decisions about the use of medicines during lactation,” says Debora La Mantia.
Do you want to know more? Read the publication: La Mantia D, Nauwelaerts N, Bernardini C, Zannoni A, Salaroli R, Lin Q, Huys I, Annaert P, Forni M. Development and Characterization of a Human Mammary Epithelial Cell Culture Model for the Blood–Milk Barrier—A Contribution from the ConcePTION Project. International Journal of Molecular Sciences. 2024; 25(21):11454. DOI: https://doi.org/10.3390/ijms252111454