ACTA1 and chronic rhinosinusitis with nasal polyps: On the other hand, all three of these ITGB6(+)MP subtypes, especially Snail(+)ITGB6(+)MPs and αSMA(+)ITGB6(+)MPs, were significantly higher in CRSwNP cases with history of prior surgery than those without prior surgery, independent of asthma status (Figure 5C).