2012
DOI: 10.1186/1465-9921-13-46
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Rituximab therapy in pulmonary alveolar proteinosis improves alveolar macrophage lipid homeostasis

Abstract: RationalePulmonary Alveolar Proteinosis (PAP) patients exhibit an acquired deficiency of biologically active granulocyte-macrophage colony stimulating factor (GM-CSF) attributable to GM-CSF specific autoantibodies. PAP alveolar macrophages are foamy, lipid-filled cells with impaired surfactant clearance and markedly reduced expression of the transcription factor peroxisome proliferator-activated receptor gamma (PPARγ) and the PPARγ-regulated ATP binding cassette (ABC) lipid transporter, ABCG1. An open label pr… Show more

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Cited by 48 publications
(23 citation statements)
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References 28 publications
(49 reference statements)
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“…A low baseline vital capacity appeared to be a prognostic marker for disease recurrence 35 . As another potential therapeutic strategy to reduce the level of GM-CSF autoantibodies, anti-B cell therapy with Rituximab for autoimmune PAP has been reported [36][37][38] . Plasmapheresis for autoimmune PAP is also a potential approach which can remove GM-CSF autoantibodies 39 .…”
Section: Experimental Approachesmentioning
confidence: 99%
“…A low baseline vital capacity appeared to be a prognostic marker for disease recurrence 35 . As another potential therapeutic strategy to reduce the level of GM-CSF autoantibodies, anti-B cell therapy with Rituximab for autoimmune PAP has been reported [36][37][38] . Plasmapheresis for autoimmune PAP is also a potential approach which can remove GM-CSF autoantibodies 39 .…”
Section: Experimental Approachesmentioning
confidence: 99%
“…Die B-Lymphozyten-Depletion ist eine neue therapeutische Option für die Behandlung einer autoimmunen AP. Bei Patienten mit erhöhtem Anti-GM-CSFTiter in Serum wurde der monoklonale Anti-CD20-Antikörper Rituximab intravenös angewendet (2-malige Applikation mit 15 Tagen Abstand, [22,29]). Eine anhaltende Depletion von B-Zellen sowie eine klinische Besserung wurde erreicht [22].…”
Section: Immunmodulatorische Therapieunclassified
“…Debido a la escasa evidencia en la que se basa el tratamiento y con el objetivo de ser más preciso al definir aquellos casos de PAP que requieren un tratamiento más específico, algunos autores proponen criterios más objetivos, basados fundamentalmente en las alteraciones que se producen en la oxigenación, de manera que serían candidatos a tratamiento aquellos casos que presentaran: Seymour et al 28 GM-CSF sc 5 mg/kg/día 10-26 semanas 36% (n = 14) Kavuru et al 39 GM-CSF sc 250 g/día hasta 5-9 g/kg/día 12 semanas 75% (n = 4) Bonfield et al 30 GM-CSF sc 250 g/día hasta 18 g/kg/día 12-48 semanas 55% (n = 11) Venkateshiah et al 31 GM-CSF sc 250 g/día hasta 5-18 g/kg/día 12-52 semanas 48% (n = 21) Tazawa et al 32 GM-CSF inh 250 g/día semanas alternas 24 semanas 100% (n = 3) Wylam et al 33 GM-CSF inh 250-500 g/día 12 semanas 83% (n = 12) Borie et al 34 Rituximab iv 1 g día 0 y 15 15 días 100% (n = 1) Amital et al 35 Rituximab iv 375 mg/m 2 semanal 4 semanas 100% (n = 1) Kavuru et al 36 Rituximab iv 1 g días 0 y 15 15 días 78% (n = 9) inh: vía inhalatoria; iv: vía intravenosa; sc: vía subcutánea. a) una PaO 2 en reposo < 65 mmHg; b) una diferencia alveoloarterial de O 2 ≥40 mmHg, y c) presencia de un shunt > 10-12% 21 .…”
Section: Tratamientounclassified
“…Rituximab se emplea en el tratamiento de enfermedades linfoproliferativas de linfocitos B y en varias enfermedades autoinmunes, como lupus eritematoso sistémico, artritis reumatoide o vasculitis 35 . Dado que la PAP primaria es considerada una enfermedad autoinmune en la que participan anticuerpos frente al GM-CSF, la reducción de los linfocitos B y los niveles de anti GM-CSF que produciría rituximab podría ser una opción eficaz para el tratamiento 36 .…”
Section: Rituximabunclassified