Janus kinase inhibition induces disease remission in cutaneous sarcoidosis and granuloma annulare.
J Am Acad Dermatol
; 82(3): 612-621, 2020 Mar.
Article
em En
| MEDLINE
| ID: mdl-31185230
ABSTRACT
BACKGROUND:
Sarcoidosis and granuloma annulare (GA) are cutaneous granulomatous disorders that can be difficult to treat. There is evidence of underlying Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway activation in sarcoidosis, suggesting that JAK inhibition might be effective.OBJECTIVE:
To evaluate treatment with tofacitinib, a JAK inhibitor, in patients with recalcitrant sarcoidosis and GA.METHODS:
A prospective evaluation of tofacitinib in 4 consecutive patients with recalcitrant cutaneous sarcoidosis (n = 3) and generalized GA (n = 1) was conducted. Immunohistochemical analysis of skin biopsy specimens from other patients with sarcoidosis (n = 21) and GA (n = 17) was performed to characterize patterns of JAK-STAT pathway activation.RESULTS:
Tofacitinib resulted in a mean improvement in the baseline Cutaneous Sarcoidosis Activity and Morphology Instrument and Granuloma Annulare Scoring Index scores of 96% (standard deviation, 2%). Histologic resolution of disease was documented in all patients (3 out of 3) who had skin biopsies while receiving therapy. Constitutive STAT1 and STAT3 activation was observed in both sarcoidosis and GA, albeit in different patterns. Signal regulatory protein α may explain the differences in JAK-STAT signaling between sarcoidosis and GA.LIMITATIONS:
The study is limited by the small number of participants.CONCLUSIONS:
Tofacitinib resulted in dramatic improvement in 4 patients with cutaneous sarcoidosis and GA. Larger studies are underway to better understand this effect.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Piperidinas
/
Pirimidinas
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Pirróis
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Sarcoidose
/
Indução de Remissão
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Granuloma Anular
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Inibidores de Janus Quinases
Tipo de estudo:
Diagnostic_studies
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Observational_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
J Am Acad Dermatol
Ano de publicação:
2020
Tipo de documento:
Article