Targeting DOT1L and EZH2 synergizes in breaking the germinal center identity of Diffuse Large B-cell Lymphoma.

Differentiation of antigen-activated B cells into pro-proliferative germinal center (GC) B cells depends on the activity of the transcription factors MYC and BCL6, and the epigenetic writers DOT1L and EZH2. GCB-like Diffuse Large B Cell Lymphomas (GCB-DLBCLs) arise from GCB cells and closely resemble their cell of origin. Given the dependency of GCB cells on DOT1L and EZH2, we investigated the role of these epigenetic regulators in GCB-DLBCLs and observed that GCB-DLBCLs synergistically depend on the combined activity of DOT1L and EZH2.

Molecular dependencies and genomic consequences of a global DNA damage tolerance defect.

Background: DNA damage tolerance (DDT) enables replication to continue in the presence of fork stalling lesions. In mammalian cells, DDT is regulated by two independent pathways, controlled by the polymerase REV1 and ubiquitinated PCNA, respectively.

Results: To determine the molecular and genomic impact of a global DDT defect, we studied Pcna;Rev1 compound mutants in mouse cells.

Sex differences in the relationships between 24-h rest-activity patterns and plasma markers of Alzheimer's disease pathology.

Background: Although separate lines of research indicated a moderating role of sex in both sleep-wake disruption and in the interindividual vulnerability to Alzheimer's disease (AD)-related processes, the quantification of sex differences in the interplay between sleep-wake dysregulation and AD pathology remains critically overlooked. Here, we examined sex-specific associations between circadian rest-activity patterns and AD-related pathophysiological processes across the adult lifespan.

Methods: Ninety-two cognitively unimpaired adults (mean age = 59.

WITHDRAWN: There is often - But not always - An alternative!

The Publisher regrets that this article is an accidental duplication of an article that has already been published, https://doi.org/10.1016/j.