CXCR2 and asthma: Increased production of the CXCR2 ligands ENA-78, GRO-α and IL-8 was confirmed by ELISA and functionality of CXCR2 ligands in mediating proangiogenic effects of BSMC from asthma patients was demonstrated by reduction of EC sprout outgrowth in the presence of the specific CXCR2 antagonist SB 265610.