research Dermal Papilla Cells Improve Wound Healing and Generate Hair Bud-Like Structures in Grafted Skin Substitutes Using Hair Follicle Stem Cells 68 citations, August 2014 in “Stem Cells Translational Medicine” Dermal papilla cells help wounds heal better and can potentially grow new hair.
research Macrophages Promote Wound-Induced Hair Follicle Regeneration in a CX3CR1- and TGF-β1-Dependent Manner 36 citations, April 2018 in “Journal of Investigative Dermatology” Macrophages help hair growth after injury through CX3CR1 and TGF-β1.