Activated PMN exosomes are pathogenic entities that cause destruction in the COPD lung

Medical XPress | January 11, 2019

The University of Alabama at Birmingham researchers have found a novel, previously unreported pathogenic entity that is a fundamental link between chronic inflammation and tissue destruction in the lungs of patients with chronic obstructive pulmonary disease, or COPD. COPD is the fourth-leading cause of death in the world.
This pathogenic entity—exosomes from activated polymorphonuclear leukocytes, or PMNs—caused COPD damage when the small, subcellular particles, collected from purified PMNs, were instilled into the lungs of healthy mice. Remarkably, the UAB researchers also collected exosomes from the lung fluids of human patients with COPD and the lung fluids of neonatal ICU babies with the lung disease bronchopulmonary dysplasia; when those human-derived exosomes were instilled into the lungs of healthy mice, they also caused COPD lung damage. Damage was primarily from PMN-derived exosomes from the human lungs.

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Spotlight

Polymun offers the development of liposomal formulations for all kinds of pharmaceutically active ingredients and vaccine antigens. A broad spectrum of analytical methods has been established for this purpose. Polymun produces GMP material including all necessary documentation for IMPD/IND. We also assist in planning and implementation of clinical trials. Finally, license agreements are offered for the respective substance on an exclusive basis. Contracts can be arranged step by step proof of concept, in-depth analysis, GMP production, product license or all in one.

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