ESPE Yearbook of Paediatric Endocrinology

Brief summary: Emont et al. created a cell atlas of human and mouse white adipose tissue, which goes a long way in informing our understanding of the complexity of adipose tissue.Although adipocytes make up the largest proportion of adipose tissue volume, the cellular structure of adipose tissue is far more complex and includes adipose tissue progenitor cells (APCs), fibroblasts, vascular cells and immune cells. We are also beginning to understa...

Brief summary: This study investigated adipose tissue cellularity and functionality in more than 400 individuals with early-onset obesity (before the age of 18 years) versus late-onset of obesity (after the age of 18 years) compared to never-obese subjects. Individuals with obesity had increased subcutaneous white adipose tissue amounts resulting from a combination of increased size and numbers of fat cells.Interestingly, individuals with early-onset obe...

Brief summary: Villanueva-Carmona et al. identified succinate as a mediating metabolite in leptin secretion. Its action is mediated by the succinate receptor SUCNR in adipocytes via the circadian clock in an AMPK/JNK-C/EBPa-dependent manner.Although the regulatory circuits of leptin action on hunger and satiety are well understood, the pathways that mediate acute leptin production in the adipose tissue are less investigated. To investigate how a...