Single-Cell and Spatial Transcriptomics Across Populations With Perianal Fistulizing Crohn’s Disease Shows Proinflammatory CD4+ Macrophage Involvement in Disease Progression
Background & Aims Perianal fistulizing Crohn’s disease is a severe morbidity with rectal involvement and a higher prevalence in African Americans compared with European Americans. In this study, we sought to define the distinguishing cellular and molecular features between inflamed rectal Crohn’s disease with and witho...