Distinct developmental pathways from blood #monocytes generate human #lung macrophage diversity

The study of human macrophages and their ontogeny is an important unresolved issue. Here, we use a humanized mouse model expressing human cytokines to dissect the development of lung macrophages from human hematopoiesis in vivo. Human CD34+ hematopoietic stem and progenitor cells (HSPCs) generated three macrophage populations, occupying separate anatomical niches in the lung. Intravascular… Continue reading Distinct developmental pathways from blood #monocytes generate human #lung macrophage diversity

Adrenergic Signaling in #Muscularis Macrophages Limits Infection-Induced Neuronal Loss

..Enteric-associated neurons (EANs) are closely associated with immune cells and continuously monitor and modulate homeostatic intestinal functions, including motility and nutrient sensing. Bidirectional interactions between neuronal and immune cells are altered during disease processes such as neurodegeneration or #irritable bowel syndrome. We investigated the effects of infection-induced inflammation on intrinsic EANs (iEANs) and the role… Continue reading Adrenergic Signaling in #Muscularis Macrophages Limits Infection-Induced Neuronal Loss