TSLP and Nasal polyposis: More recently, we (Kimura et al) have demonstrated increased expression of Thymic Stromal Lymphopoietin (TSLP) in nasal polyps irrespective of the atopic status, as compared to the allergic nasal mucosa and the TSLP expression was in good correlation with eosinophils and IgE in the nasal polyp [144].