Granulomatous inflammation in cartilage-hair hypoplasia: Risks and benefits of anti–TNF-⍺ mAbs - 30/09/11
Abstract |
Background |
Cartilage-hair hypoplasia (CHH) is a rare autosomal recessive disorder characterized by short-limbed skeletal dysplasia. Some patients also have defects in cell-mediated immunity and antibody production. Granulomatous inflammation has been described in patients with various forms of primary immunodeficiencies but has not been reported in patients with CHH.
Objective |
We sought to describe granulomatous inflammation as a novel feature in patients with CHH, assess associated immunodeficiency, and evaluate treatment options.
Methods |
In a retrospective observational study we collected clinical data on 21 patients with CHH to identify and further characterize patients with granulomatous inflammation.
Results |
Four unrelated patients with CHH (with variable degrees of combined immunodeficiency) had epithelioid cell granulomatous inflammation in the skin and visceral organs. Anti–TNF-⍺ mAb therapy in 3 of these patients led to significant regression of granulomas. However, 1 treated patient had fatal progressive multifocal leukoencephalopathy caused by the JC polyomavirus. In 2 patients immune reconstitution after allogeneic hematopoietic stem cell transplantation led to the complete disappearance of granulomas.
Conclusion |
To the best of our knowledge, this is the first report of granulomatous inflammation in patients with CHH. Although TNF-⍺ antagonists can effectively suppress granulomas, the risk of severe infectious complications limits their use in immunodeficient patients.
El texto completo de este artículo está disponible en PDF.Key words : Cartilage-hair hypoplasia, primary immunodeficiency, granulomatous inflammation, anti–TNF-⍺ mAb therapy, infliximab, progressive multifocal leukoencephalopathy
Abbreviations used : CHH, CMV, CVID, EBER, HHV8, HSCT, PML, RMRP
Esquema
Disclosure of potential conflict of interest: The authors have declared that they have no conflict of interest. |
Vol 128 - N° 4
P. 847-853 - octobre 2011 Regresar al númeroBienvenido a EM-consulte, la referencia de los profesionales de la salud.
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