VPS33B and idiopathic pulmonary fibrosis: This in vitro observation was also represented in IPF pathology, where patient-derived lung samples showed enrichment of collagen-I which overlaps with both integrin α11 subunit and VPS33B within the IPF hallmark lesion (termed the fibroblastic focus [Herrera et al., 2019], encircled by red dotted line, Figure 9A).