PDGFRB and infection: Moreover, although the injection of rTGF-β into N. brasiliensis-infected Pdgfrb-cre × Egfrfl/fl mice (Figures 5D–5G) fully restored their lung function, blood barrier integrity, and myofibroblast differentiation on day 4 post infection, the administration of rAREG did not revert this phenotype in Pdgfrb-cre × Egfrfl/fl mice (Figures 5D–5F).