Adipocyte induced distinct gene expression profiling of human endometrioid endometrial cancer cells upon SIRT1 inhibition.

We examined the mechanism by which adiposity regulates endometrioid endometrial cancer progression. Ishikawa EEC cells were co-cultured with mature adipocytes in presence or absence of SIRT1 inhibitor EX527, and total RNA was isolated for RNA-seq analysis and focus on the functional relevance that adipocyte co-culture affected pathways and related biomarkers may have in endometrial cancer response to adiposity. 500ng of total RNA from Ishikawa control, co-cultured EC, Co-cultured EC+EX527 cells was used to enrich the mRNA using NEBNext Poly (A) mRNA magnetic isolation module (Catalog: E7490, New England Biolabs) by following the manufacturers’ protocol. The enriched mRNAs were further taken for the library preparation using the NEBNext® Ultra™ II RNA Library Prep Kit for Illumina (Catalog: E7775S, New England Biolabs). The cDNA was amplified by 12 cycles of PCR with the addition of NEBNext Ultra II Q5 mastermix, and “NEBNext® Multiplex Oligos for Illumina” to facilitate multiplexing while sequencing. The amplified products were then purified using 0.9X AMPure XP beads (Catalog: A63881, Beckman Coulter) and the final DNA library was eluted in 15μl of 0.1X TE buffer. The library concentration was determined in a Qubit.3 Fluorometer (Catalog: Q33216, Life technologies usingThe Qubit dsDNA HS (High Sensitivity) Assay Kit (Catalog: Q32854, ThermoFisher Scientific). The library quality assessment was done using Agilent High Sensitivity D1000 ScreenTape System (Catalog:5067- 5584, Agilent) in a 4150 TapeStation System (Catalog: G2992AA, Agilent) which is designed for analysing DNA molecules from 35 to 1000bp. The sequence data was generated using Illumina HiSeq. The rRNA removed reads mapped onto indexed Human reference genome(GRCh38.p7) using STAR v2 aligner