Immunodeficient mouse models are commonly used to study human stem cells, but issues with reproducibility and variation in engraftment remain unresolved.
This research investigates how the sex of both human donor cells and recipient mice affects the engraftment of healthy and leukemic cells, discovering significant differences based on their genders.
Notably, human female donor cells show increased engraftment and sensitivity to the gender of recipient mice, highlighting the need to consider donor-recipient characteristics in future pre-clinical studies.