STING1 and neoplasm: They identified four major subpopulations in pancreatic tumor microenvironment through scRNA seq: a terminally differentiated pro-tumor subpopulation (TAN-1) associated with poor prognosis, an inflammatory subpopulation (TAN-2), a population of transitional stage that has just migrated to tumor microenvironment (TAN-3), and a subpopulation preferentially expressing interferon-stimulated genes (TAN-4) [68].