He graduated with his MD degree in Medicine and Surgery from the University of Rome, La Sapienza in 1994. He then went on to complete post-graduate study and received a speciality degree in Internal Medicine in 1999 and a Dermatology speciality degree in 2006.
His clinical research is focused on the characterization of the activity of biologics in psoriasis and psoriatic arthritis. This research is strictly linked to basic research activity on the pathogenesis of psoriasis and on the use of pharmacogenetic approach to predict the efficacy and safety of biologics in psoriasis.
In the past, Professor Costanzo has collaborated to the characterization of basic mechanisms of TNF inflammatory signalling in epithelial cells and NFkappaB regulation by different stimuli. More recently his research group has collaborated to the discovery of IL-21 as critical mediator of keratinocyte proliferation in psoriasis. Professor Costanzo has authored or co-authored more than 120 publications in internationally peer-reviewed journals.