Cite this page: Alpha-lactalbumin. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/stainsalphalactalbumin.html. Accessed July 12th, 2017.
Definition / general
- Main whey protein in human and cow's milk (Wikipedia)
- Helps synthesize lactose from glucose and galactose in mammary gland (Arch Latinoam Nutr 2012;62:6)
- Specific to breast tissue (normal, malignant, fibrocystic) and hydradenoma papilliferum of vulva, but not a common immunostain
Uses by pathologists
- GCDFP-15 is more specific for metastatic breast cancer than alpha-lactalbumin (Hum Pathol 1989;20:281)


