Effect of INO80 loss on open chromatin in HepG2 cells [ATAC-seq]
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE97410 | GEO | 2020/04/01
REPOSITORIES: GEO
Similar Datasets
Project description:We carried out two sets of experiments to understand how the INO80 complex affected gene expression. Expression analysis following depletion of INO80 with two siRNAs to determine INO80 dependent transcription programs. In addition siMCRS1 or siNTG expression analysis with and without treatment with EZH2 inhibitor (EPZ-6438) was performed to determine what genes in HepG2 cells are de-repressed by EZH2 inhibition, and test the hypothesis that changes at INO80 autonomous sites would depdend on expression of other INO80 subunits (MCRS1). We found that de-repression caused by EZH2 inhbition was blunted when cells were treated with an siRNA targeting MCRS1 and that this was especially pronounced at a set of INO80 target genes.
2020-04-01 | GSE97412 | GEO
Project description:We mapped 4 subunits of the INO80 complex using ChIP-seq in HepG2 and Huh7 liver cancer cell lines. We found a subclass of sites occupied by the INO80 ATPase subunit, but not by any accessory subunits that we call 'Autonomous' INO80 sites. These sites are present in both HepG2 and Huh7 cells and are characterized by repressed chromatin. Relief of reprissive histone modifications thorugh EZH2 inhbiition led to the increase in H3K27ac at INO80 targets.
2020-04-01 | GSE97411 | GEO
Project description:The experiment addresses the transcriptional changes after loss of the ncRNA lincMYH and of the INO80 chromatin remodeller in proliferating muscle stem cells in vitro.
2020-08-19 | E-MTAB-8592 | biostudies-arrayexpress
Project description:Embryonic stem cell (ESC) self-renewal and pluripotency is controlled by the coordinated action of transcription factors and chromatin regulators. Compared to the pluripotency transcription factors, the function of the chromatin regulators, especially the ATP-dependent chromatin remodelers, remains poorly understood in ESCs. Here, we show that INO80, a SWI/SNF family chromatin remodeling complex, is essential for ESC self-renewal, pluripotency, somatic cell reprogramming, and embryonic development. Ino80, the ATPase of the complex, forms an auto-regulatory loop with the ESC master transcription factors Oct4, Nanog, and Sox2. More importantly, it co-occupies the enhancer regions of most key pluripotency genes with the master transcription factors, and positively regulates their expression by maintaining an open chromatin structure. Our data suggests that INO80 is an integral component of the pluripotency transcription network, and plays a critical role in both the maintenance and establishment of pluripotency Identification of Ino80 localization in mouse embryonic stem cells
2014-05-16 | E-GEOD-49137 | biostudies-arrayexpress
Project description:Embryonic stem cell (ESC) self-renewal and pluripotency is controlled by the coordinated action of transcription factors and chromatin regulators. Compared to the pluripotency transcription factors, the function of the chromatin regulators, especially the ATP-dependent chromatin remodelers, remains poorly understood in ESCs. Here, we show that INO80, a SWI/SNF family chromatin remodeling complex, is essential for ESC self-renewal, pluripotency, somatic cell reprogramming, and embryonic development. Ino80, the ATPase of the complex, forms an auto-regulatory loop with the ESC master transcription factors Oct4, Nanog, and Sox2. More importantly, it co-occupies the enhancer regions of most key pluripotency genes with the master transcription factors, and positively regulates their expression by maintaining an open chromatin structure. Our data suggests that INO80 is an integral component of the pluripotency transcription network, and plays a critical role in both the maintenance and establishment of pluripotency Mouse J1 cells were transfected with non-targeting (NT), Ino80, Ino80b, Ino80c or Ino80e siRNAs, and RNA was isolated 96 hours after transfection. agent: non-targeting siRNA: Mock_1, Mock_2 agent: Ino80 siRNA: Ino80a_1, Ino80a_2 agent: Ino80b siRNA: Ino80b_1, Ino80b_2 agent: Ino80c siRNA: Ino80c_1, Ino80c_2 agent: Ino80e siRNA: Ino80e_1, Ino80e_2 cell line: mouse J1 ESC: Mock_1, Mock_2, Ino80a_1, Ino80a_2, Ino80b_1, Ino80b_2, Ino80c_1, Ino80c_2, Ino80e_1, Ino80e_2 time: 96 hours: Mock_1, Mock_2, Ino80a_1, Ino80a_2, Ino80b_1, Ino80b_2, Ino80c_1, Ino80c_2, Ino80e_1, Ino80e_2 biological replicate: Ino80a_1, Ino80a_2 biological replicate: Ino80b_1, Ino80b_2 biological replicate: Ino80c_1, Ino80c_2 biological replicate: Ino80e_1, Ino80e_2 biological replicate: Mock_1, Mock_2
2014-05-16 | E-GEOD-49251 | biostudies-arrayexpress
Project description:The INO80 complex is a chromatin remodeler that regulates DNA replication, repair, and transcription. Although the INO80 complex plays a crucial role in various chromatin-associated processes, the mechanism of its recruitment to specific genomic loci is not well understood. Here we used a native ChIP-MS approach to quantitatively profile modifications present on nucleosomes co-purified with INO80 from MNAse-digested HeLa chromatin.
2023-12-10 | PXD042210 | Pride
Project description:Embryonic stem cell (ESC) self-renewal and pluripotency is controlled by the coordinated action of transcription factors and chromatin regulators. Compared to the pluripotency transcription factors, the function of the chromatin regulators, especially the ATP-dependent chromatin remodelers, remains poorly understood in ESCs. Here, we show that INO80, a SWI/SNF family chromatin remodeling complex, is essential for ESC self-renewal, pluripotency, somatic cell reprogramming, and embryonic development. Ino80, the ATPase of the complex, forms an auto-regulatory loop with the ESC master transcription factors Oct4, Nanog, and Sox2. More importantly, it co-occupies the enhancer regions of most key pluripotency genes with the master transcription factors, and positively regulates their expression by maintaining an open chromatin structure. Our data suggests that INO80 is an integral component of the pluripotency transcription network, and plays a critical role in both the maintenance and establishment of pluripotency Mouse J1 cells were infected with lentiviral-shNT or lentiviral-Ino80, RNA was extracted at 2, 4 or 6 days after infection. agent: non-targeting shRNA: NS_Day_2_1, NS_Day_2_2, NS_Day_4_1, NS_Day_4_2, NS_Day_6_1, NS_Day_6_2 agent: Ino80 shRNA: shIno80_Day_2_1, shIno80_Day_2_2, shIno80_Day_4_1, shIno80_Day_4_2, shIno80_Day_6_1, shIno80_Day_6_2 time: 48 hours: NS_Day_2_1, NS_Day_2_2, shIno80_Day_2_1, shIno80_Day_2_2 time: 96 hours: NS_Day_4_1, NS_Day_4_2, shIno80_Day_4_1, shIno80_Day_4_2 time: 144 hours: NS_Day_6_1, NS_Day_6_2, shIno80_Day_6_1, shIno80_Day_6_2 cell line: mouse J1 ESC: NS_Day_2_1, NS_Day_2_2, shIno80_Day_2_1, shIno80_Day_2_2, NS_Day_4_1, NS_Day_4_2, shIno80_Day_4_1, shIno80_Day_4_2, NS_Day_6_1, NS_Day_6_2, shIno80_Day_6_1, shIno80_Day_6_2 biological replicate: shIno80_Day_2_1, shIno80_Day_2_2 biological replicate: shIno80_Day_4_1, shIno80_Day_4_2 biological replicate: shIno80_Day_6_1, shIno80_Day_6_2 biological replicate: NS_Day_2_1, NS_Day_2_2 biological replicate: NS_Day_4_1, NS_Day_4_2 biological replicate: NS_Day_6_1, NS_Day_6_2
2014-05-16 | E-GEOD-49250 | biostudies-arrayexpress
Project description:During transcription, nucleosomes are evicted from regulatory and coding regions yet chromatin structure is stable. Restoration of chromatin structure involves concerted action of chromatin modifying activities. Our analysis demonstrates a genome wide function of the INO80 remodeling complex for stable repositioning of the nucleosome immediately proximal to the transcription initiation site. INO80 dependent remodeling of the promoter proximal nucleosomes has a global repressive role. Recruitment of INO80 to proximal nucleosomes overlaps with the elongating Polymerase II complex assembly. The amount of associated Polymerase II at start sites correlates with INO80 recruitment for inducible and constantly transcribed genes. Furthermore, at highly inducible promoters INO80 is required for repression of bidirectional transcription. Therefore, we suggest a function for INO80 after transcription initiation to achieve Polymerase II dependent reassembly of promoter proximal nucleosomes.
2016-12-24 | E-MTAB-1810 | biostudies-arrayexpress
Project description:Embryonic stem cell (ESC) self-renewal and pluripotency is controlled by the coordinated action of transcription factors and chromatin regulators. Compared to the pluripotency transcription factors, the function of the chromatin regulators, especially the ATP-dependent chromatin remodelers, remains poorly understood in ESCs. Here, we show that INO80, a SWI/SNF family chromatin remodeling complex, is essential for ESC self-renewal, pluripotency, somatic cell reprogramming, and embryonic development. Ino80, the ATPase of the complex, forms an auto-regulatory loop with the ESC master transcription factors Oct4, Nanog, and Sox2. More importantly, it co-occupies the enhancer regions of most key pluripotency genes with the master transcription factors, and positively regulates their expression by maintaining an open chromatin structure. Our data suggests that INO80 is an integral component of the pluripotency transcription network, and plays a critical role in both the maintenance and establishment of pluripotency
2014-05-16 | GSE49251 | GEO
Project description:Embryonic stem cell (ESC) self-renewal and pluripotency is controlled by the coordinated action of transcription factors and chromatin regulators. Compared to the pluripotency transcription factors, the function of the chromatin regulators, especially the ATP-dependent chromatin remodelers, remains poorly understood in ESCs. Here, we show that INO80, a SWI/SNF family chromatin remodeling complex, is essential for ESC self-renewal, pluripotency, somatic cell reprogramming, and embryonic development. Ino80, the ATPase of the complex, forms an auto-regulatory loop with the ESC master transcription factors Oct4, Nanog, and Sox2. More importantly, it co-occupies the enhancer regions of most key pluripotency genes with the master transcription factors, and positively regulates their expression by maintaining an open chromatin structure. Our data suggests that INO80 is an integral component of the pluripotency transcription network, and plays a critical role in both the maintenance and establishment of pluripotency
2014-05-16 | GSE49250 | GEO