Whereas our study focused on changes occurring within 1 week of PolyI:C exposure, a transient surge of maternal IL-6 given on E13.5 in mice is sufficient to cause an expanded NPC population in 2-month old offspring, indicating that dysregulated NPC behavior may endure long after in utero exposure to inflammation (53). The gene discussed is IL6; the disease is nasopharyngeal carcinoma.