VEGF regulates the expression of specific cathepsins (A, B), MMPs (A, B), and VEGF receptor complex (A) in lung mDC. Sorted lung mDC were subjected to tRNA and following cDNA isolation for PCR (A) as described in Material and Methods with corresponding primer’s set. (A) VEGF expression downregulates VEGFR1 and induces VEGFR2 expression in lung mDC. In addition, it upregulates the expression of both neuropilins. (B) VEGF induces MMP-12 but not cathepsin S upregulation in tg mDC as analyzed by Western blot. Of note, cathepsin S is the most highly expressed cathepsin in WT lung mDC.