Project description:Genome-wide profiling of H3K9/K14 Acetylation and H3K27 trimethylation at promoters in the human lung embryonic fibroblast cell line MRC5
Project description:Comparison of gene expression in pterygium fibroblast cells after 48 h treatment with siRNA to knock down expression of linc-9432 or non-specific oligonucleotide control
Project description:The ELN gene encodes tropoelastin which is used to generate elastic fibers that insure proper tissue elasticity. Decreased amounts of elastic fibers and/or accumulation of bioactive products of their cleavage, named elastokines, are thought to contribute to aging. Cellular senescence, characterized by a stable proliferation arrest and by the senescence-associated secretory phenotype (SASP), increases with aging. Here, we identified that decrease in ELN either by siRNA in normal human fibroblasts results in premature senescence. Surprisingly this effect is independent of elastic fiber degradation or elastokines production, but it relies on the rapid increase in HMOX1 after ELN downregulation. These results unveil a role for ELN in protecting cells from cellular senescence through a non-canonical mechanism.