Anti-cytokine autoantibodies have been shown to be an important mediator of certain serious diseases including immunodeficiency due to anti-IFNg autoantibodies and pulmonary alveolar proteinosis due to anti-GM-CSF autoantibodies. Some patients are refractory to optimized conventional therapy or have serious intolerance to standard approaches. We will be enrolling patients with anticytokine autoantibody syndromes who have progressive disease despite optimized conventional treatment. We will treat patients and collect their blood and evaluate disease-affected regions however appropriate, i.e. imaging for anti-IFNg-autoantibody associated deep-seated infections, endoscopy for anti-IL-17-autoantibody-associated candidiasis, bronchoscopy and/or CT imaging for GM-CSF autoantibody associated pulmonary alveolar proteinosis. We will evaluate blood for changes in autoantibody levels using our luminex-based method for antibody screening, inflammatory markers using the clinical lab, and immunological parameters such as CD40 Ligand expression and B lymphocyte subsets using flow cytometry. We will also apherese patients prestudy and identify antigen-specific B cells (that recognize specific cytokines) by flow cytometry and ELIspot. We will also perform a quality of life survey pre and post study and clinically score disease activity to evaluate for evidence of efficacy. This study has had support from Genetech who are providing drug as well as PK and PD data, and search for human anti-chimeric antibodies (HACAs).

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5
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2017
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Marciano, Beatriz E; Holland, Steven M (2017) Primary Immunodeficiency Diseases: Current and Emerging Therapeutics. Front Immunol 8:937
Crum-Cianflone, Nancy F; Lam, Pamela V; Ross-Walker, Sarah et al. (2017) Autoantibodies to Granulocyte-Macrophage Colony-Stimulating Factor Associated With Severe and Unusual Manifestations of Cryptococcus gattii Infections. Open Forum Infect Dis 4:ofx211
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Wu, Un-In; Holland, Steven M (2016) A genetic perspective on granulomatous diseases with an emphasis on mycobacterial infections. Semin Immunopathol 38:199-212
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Rosen, Lindsey B; Rocha Pereira, Nuno; Figueiredo, Cristóvão et al. (2015) Nocardia-induced granulocyte macrophage colony-stimulating factor is neutralized by autoantibodies in disseminated/extrapulmonary nocardiosis. Clin Infect Dis 60:1017-25
Burbelo, Peter D; Keller, Jason; Wagner, Jason et al. (2015) Serological diagnosis of pulmonary Mycobacterium tuberculosis infection by LIPS using a multiple antigen mixture. BMC Microbiol 15:205

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