NYU Langone study reveals how leukemia cells infiltrate lungs and cause breathing problems

NYU Langone Health researchers have published a new study that details the mechanism by which blood cancer cells infiltrate the lungs, damage pulmonary tissue, and precipitate severe breathing difficulties. The investigation, led by a team of hematologists and pulmonologists, examined the metastatic behavior of malignant hematologic cells in both preclinical models and patient-derived samples, revealing a previously underappreciated route of lung involvement in systemic cancers.

The study found that circulating leukemia or lymphoma cells can adhere to the endothelial lining of pulmonary capillaries, breach the alveolar barrier, and establish micro‑lesions that trigger localized inflammation and fibrotic remodeling. These changes compromise gas exchange and reduce lung compliance, accounting for the acute respiratory distress observed in affected patients. By mapping the molecular interactions that facilitate this translocation, the researchers identified potential therapeutic targets that could interrupt the process before significant lung damage occurs.

These insights underscore the importance of early detection and targeted intervention in patients with blood cancers, particularly those at risk of pulmonary complications. The findings also pave the way for future clinical trials aimed at preventing or mitigating lung metastasis, ultimately improving respiratory outcomes and overall survival for individuals with hematologic malignancies.