- Yan, Di;
- Blauvelt, Andrew;
- Dey, Amit K;
- Golpanian, Rachel S;
- Hwang, Samuel T;
- Mehta, Nehal N;
- Myers, Bridget;
- Shi, Zhen-Rui;
- Yosipovitch, Gil;
- Bell, Stacie;
- Liao, Wilson
Although psoriasis and psoriatic arthritis (PsA) have been classically considered to be diseases of the skin and joints, respectively, emerging evidence suggests that a combination of innate and environmental factors creates widespread immune dysfunction, affecting multiple organ systems. A greater understanding of the pathogenesis of psoriasis and the systemic effects of psoriatic inflammation has allowed for the development of new, more effective treatments. The second portion of this two-part review series examines the comorbidities associated with psoriasis and PsA as well as the most recent advances in targeted systemic therapies for these conditions.