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Pharmacotherapy for Autoimmune Pulmonary Alveolar Proteinosis
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DOI：10.1007/s40265-025-02228-3.png)
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Abstract
En 中文
Pulmonary alveolar proteinosis is suspected when a “crazy paving” pattern is observed on a chest CT scan. This diagnosis is confirmed by the presence of eosinophilic extracellular material that shows positive staining with Periodic Acid Schiff on bronchoalveolar lavage samples. The autoimmune form of pulmonary alveolar proteinosis is confirmed by detecting anti-granulocyte-macrophage colony-stimulating factor antibodies in the patient’s serum. The historical first-line treatment for autoimmune pulmonary alveolar proteinosis is whole lung lavage, which should only be performed in expert centers. It remains the preferred treatment for patients experiencing respiratory failure, especially at the time of diagnosis. Inhaled granulocyte-macrophage colony-stimulating factor supplementation with molgramostim or sargramostim is now considered a first-line treatment in the international guidelines for autoimmune pulmonary alveolar proteinosis, following the positive results of recent randomized placebo-controlled studies. Rituximab and plasmapheresis can be prescribed as third- and fourth-line treatments, respectively. Lung transplantation may be considered for eligible patients experiencing terminal respiratory failure. A deeper understanding of the pathogenesis of autoimmune pulmonary alveolar proteinosis has opened up new therapeutic avenues, such as the use of PPARγ agonists or statins.
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