DISEASE: Pyogenic sterile arthritis, pyoderma gangrenosum, and acne syndrome
Entry
H00287 Disease
Name
Pyogenic sterile arthritis, pyoderma gangrenosum, and acne syndrome
Description
Pyogenic sterile arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome is a rare autoimflammatory disease with early onset, developing erosive arthritis. It is inherited in an autosomal dominant fashion. Patients typically develop cystic acne, abscesses and cutaneous ulcers, including pyoderma gangrenosum-like lesions. PAPA syndrome is caused by gain-of function mutations in PSTPIP1, a protein capable of associating with pyrin. Mutated PSTPIP1 reduces the inhibitory role of pyrin on inflammasome activation and therefore, potentiates the IL-1beta pathway. Elevated TNFalpha levels are also described.
Category
Immune system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
04 Diseases of the immune system
Autoinflammatory disorders
4A60 Monogenic autoinflammatory syndromes
H00287 Pyogenic sterile arthritis, pyoderma gangrenosum, and acne syndrome
Pathway-based classification of diseases [BR:br08402]
Innate immunity
nt06521 NLR signaling
H00287 Pyogenic sterile arthritis, pyoderma gangrenosum, and acne syndrome