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We investigated the effect on miRNA expression in Drosophila melanogaster wing imaginal discs following the knockdown of the 3'-5' exoribonuclease Dis3.
ORGANISM(S): Drosophila melanogaster 
Somatic mutations affecting DIS3, the catalytic component of the RNA exosome, have been found in up to 18% of patients affected by the hematological cancer multiple myeloma. Here we show that DIS3 targets and degrades the pluripotency factor LIN28B. In cancer cells, DIS3 inactivation leads to enhanc...
ORGANISM(S): Homo sapiens 
CUT&Tag was performed to identify the effect of DIS3 depletion on DNA:RNA hybrids genome-wide. DIS3-AID HCT116 cells were treated with either Auxin (for rapid depletion of DIS3) or DMSO (control). CUT&Tag was performed targeting DNA:RNA hybrids using the CUT&Tag-IT® R-loop Assay Kit (Active Motive) ...
ORGANISM(S): Homo sapiens 
CUT&Tag was performed to identify the effect of DIS3 depletion on RNAPII in response to UV irradiation. DIS3-AID HCT116 cells were treated with either Auxin (for rapid depletion of DIS3) or DMSO (control) before irradiation with 8 J/m2 UVC. CUT&Tag was performed targeting RNAPII-Ser2p or RNAPII-Ser5...
ORGANISM(S): Homo sapiens 
Effect of DIS3 knockdown on circRNA expression
Depletion of DIS3 from human cell lines
LORAX-seq (Yang et al, DOI:https://doi.org/10.1016/j.molcel.2024.01.019) was used to identify the backtracked RNA in DIS3-depleted HCT116 DIS3-AID cells. Briefly, LORAX-seq was performed according to Yang et al. (2024) with following modifications. The Pol II complexes were immunoprecipitated with α...
ORGANISM(S): Homo sapiens 
Circular RNAs (circRNAs) are frequently generated during splicing. Their physiological roles, however, remain largely elusive. Some specific circRNAs function as microRNA (miRNA) or RNA binding protein (RBP) sponges or encode for proteins and are actively translated. Due to the lack of accessible en...
ORGANISM(S): Homo sapiens (Human) 
2025-05-05 | PXD050442 | Pride
Oncogenic mechanisms of DIS3 mutations in Multiple Myeloma
The recently proposed exozyme hypothesis posits that subunits of the RNA processing exosome assemble into structurally distinct protein complexes that function in disparate cellular compartments and RNA metabolic pathways. Here, in a genetic test of this hypothesis, we examine the role of Dis3 -- a...
ORGANISM(S): Saccharomyces cerevisiae 
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