Fig. 1: Immunofluorescence detection of alveolar epithelial cell subtypes in patients and rats.
From: αCGRP deficiency aggravates pulmonary fibrosis by promoting senescence in alveolar type 2 cells

A In PF patients, immunofluorescence revealed increased Lamp3+NPW+AT2 cells and reduced Ager+Rtkn+AT1 cells compared to the pulmonary bulla group (×400). B Similarly, Calca-/- rats showed decreased Ager+Rtkn+AT1 and increased Lamp3+NPW+AT2 expression compared to WT rats (×400).