How does beclometasone in Beconase Aqueous Nasal Spray produce its anti-inflammatory effect?

In Beconase Aqueous Nasal Spray, beclometasone dipropionate is a pro-drug with weak corticosteroid receptor binding that esterase enzymes convert into the highly active metabolite beclometasone-17-monopropionate, which has high topical anti-inflammatory activity.