PT - JOURNAL ARTICLE AU - Stancill, Jennifer S AU - Kasmani, Moujtaba Y AU - Khatun, Achia AU - Cui, Weiguo AU - Corbett, John A TI - Single-cell RNA sequencing of mouse islets exposed to proinflammatory cytokines AID - 10.26508/lsa.202000949 DP - 2021 Jun 01 TA - Life Science Alliance PG - e202000949 VI - 4 IP - 6 4099 - https://www.life-science-alliance.org/content/4/6/e202000949.short 4100 - https://www.life-science-alliance.org/content/4/6/e202000949.full SO - Life Sci. Alliance2021 Jun 01; 4 AB - Exposure to proinflammatory cytokines is believed to contribute to pancreatic β-cell damage during diabetes development. Although some cytokine-mediated changes in islet gene expression are known, the heterogeneity of the response is not well-understood. After 6-h treatment with IL-1β and IFN-γ alone or together, mouse islets were subjected to single-cell RNA sequencing. Treatment with both cytokines together led to expression of inducible nitric oxide synthase mRNA (Nos2) and antiviral and immune-associated genes in a subset of β-cells. Interestingly, IL-1β alone activated antiviral genes. Subsets of δ- and α-cells expressed Nos2 and exhibited similar gene expression changes as β-cells, including increased expression of antiviral genes and repression of identity genes. Finally, cytokine responsiveness was inversely correlated with expression of genes encoding heat shock proteins. Our findings show that all islet endocrine cell types respond to cytokines, IL-1β induces the expression of protective genes, and cellular stress gene expression is associated with inhibition of cytokine signaling.