A single-cell dataset from cutaneous aGHVD has not currently been published; therefore, in order to understand how alterations in dermal macrophages could impact on local Treg function, we reasoned that investigation of the homologous CD11c+CD14+ monocyte cell interaction pathways in healthy and psoriatic skin would provide some insight into potentially similar pathways in the context of GVHD. Here, CD14 is linked to graft versus host disease.