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Published online by Cambridge University Press: 30 July 2025
The present review aims at an insight into the pathophysiology of chronic rhinosinusitis with nasal polyposis through the combination of three tissue sources: (1) nasal polyp, (2) neighboring non-polypoid mucosa (MS) and (3) healthy controls.
The primary outcomes included three lists of molecules (1) those significantly different between nasal polyp, neighboring non-polypoid mucosa and controls (2) those up/downregulated in nasal polyp, but comparable between MS and controls and (3) those comparable between nasal polyp and neighboring non-polypoid mucosa, but different between NP and controls.
Ten studies investigating a large variety of 68 molecules presented comparisons between nasal polyp and neighboring non-polypoid mucosa in endotype-specified populations. Comparisons between nasal polyp and neighboring non-polypoid mucosa are approached separately for eosinophilic/non-eosinophilic chronic rhinosinusitis with nasal polyposis . The small number of studies prohibits a meta-analysis.
Inclusion of neighboring non-polypoid mucosa in future studies may provide a bias-free list of the molecules that contribute to the actual pathogenesis and preservation of nasal polyps within the chronic rhinosinusitis inflammatory environment.
Maria Riga takes responsibility for the integrity of the content of the paper