Regulation, functions and transmission of bivalent chromatin during mammalian development

TA Macrae, J Fothergill-Robinson… - … reviews Molecular cell …, 2023 - nature.com
Cells differentiate and progress through development guided by a dynamic chromatin
landscape that mediates gene expression programmes. During development, mammalian …

Advances in epigenetics link genetics to the environment and disease

G Cavalli, E Heard - Nature, 2019 - nature.com
Epigenetic research has accelerated rapidly in the twenty-first century, generating justified
excitement and hope, but also a degree of hype. Here we review how the field has evolved …

Charting cellular identity during human in vitro β-cell differentiation

A Veres, AL Faust, HL Bushnell, EN Engquist… - Nature, 2019 - nature.com
In vitro differentiation of human stem cells can produce pancreatic β-cells; the loss of this
insulin-secreting cell type underlies type 1 diabetes. Here, as a step towards understanding …

Context-specific Polycomb mechanisms in development

JJ Kim, RE Kingston - Nature Reviews Genetics, 2022 - nature.com
Polycomb group (PcG) proteins are crucial chromatin regulators that maintain repression of
lineage-inappropriate genes and are therefore required for stable cell fate. Recent advances …

[HTML][HTML] Histone H3. 3 K27M accelerates spontaneous brainstem glioma and drives restricted changes in bivalent gene expression

JD Larson, LH Kasper, BS Paugh, H Jin, G Wu… - Cancer cell, 2019 - cell.com
Diffuse intrinsic pontine gliomas (DIPGs) are incurable childhood brainstem tumors with
frequent histone H3 K27M mutations and recurrent alterations in PDGFRA and TP53. We …

PRC2 is high maintenance

JR Yu, CH Lee, O Oksuz, JM Stafford… - Genes & …, 2019 - genesdev.cshlp.org
As the process that silences gene expression ensues during development, the stage is set
for the activity of Polycomb-repressive complex 2 (PRC2) to maintain these repressed gene …

[HTML][HTML] Alterations in beta cell identity in type 1 and type 2 diabetes

ASM Moin, AE Butler - Current diabetes reports, 2019 - Springer
Abstract Purpose of Review To discuss the current understanding of “β cell identity” and
factors underlying altered identity of pancreatic β cells in diabetes, especially in humans …

Leader β-cells coordinate Ca2+ dynamics across pancreatic islets in vivo

V Salem, LD Silva, K Suba, E Georgiadou… - Nature …, 2019 - nature.com
Pancreatic β-cells form highly connected networks within isolated islets. Whether this
behaviour pertains to the situation in vivo, after innervation and during continuous perfusion …

[HTML][HTML] Epigenetic dosage identifies two major and functionally distinct β cell subtypes

E Dror, L Fagnocchi, V Wegert, S Apostle, B Grimaldi… - Cell metabolism, 2023 - cell.com
The mechanisms that specify and stabilize cell subtypes remain poorly understood. Here,
we identify two major subtypes of pancreatic β cells based on histone mark heterogeneity (β …

[HTML][HTML] Single-cell transcriptomics of human islet ontogeny defines the molecular basis of β-cell dedifferentiation in T2D

D Avrahami, YJ Wang, J Schug, E Feleke, L Gao… - Molecular …, 2020 - Elsevier
Objective Dedifferentiation of pancreatic β-cells may reduce islet function in type 2 diabetes
(T2D). However, the prevalence, plasticity and functional consequences of this cellular state …