4.4 Article

PDCD2 is essential for inner cell mass development and embryonic stem cell maintenance

Journal

DEVELOPMENTAL BIOLOGY
Volume 347, Issue 2, Pages 279-288

Publisher

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ydbio.2010.08.026

Keywords

Mouse development; Embryonic stem cells; Cell differentiation; Preimplantation

Funding

  1. National Institute of Child Health and Human Development [HD24374]

Ask authors/readers for more resources

PDCD2 is a conserved eukaryotic protein implicated in cell cycle regulation by virtue of its interactions with HCFC1 and the NCOR1/SIN3A corepressor complex. Pdcd2 transcripts are enriched in ES cells and other somatic stem cells, and its ortholog is essential for hematopoietic stem cell maintenance in Drosophila. To characterize the physiological role(s) of mammalian PDCD2, we created a disruption allele in mice. Pdcd2(-/-) embryos underwent implantation but did not undergo further development. Inner cell masses (ICMs) from Pdcd2(-/-) blastocysts failed to outgrow in vitro. Furthermore, embryonic stem cells (ESCs) require PDCD2 as demonstrated by the inability to generate Pdcd2(-/)- ESCs in the absence of an ectopic transgene. Upon differentiation of ESCs by retinoic acid treatment or LIF deprivation, PDCD2 levels declined. In conjunction with prior studies, these results indicate that in vivo, PDCD2 is critical for blastomere and ESC maintenance by contributing to the regulation of genes in a manner essential to the undifferentiated state of these cells. (C) 2010 Elsevier Inc. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
Review Developmental Biology

Exploring the roles of noncoding RNAs in craniofacial abnormalities: A systematic review

Cheng Shi, Pengfei Jiao, Zhiyi Chen, Lan Ma, Siyue Yao

Summary: This review discusses the molecular etiology of congenital craniofacial abnormalities, with a focus on the role and mechanism of noncoding RNAs in regulating craniofacial development. Aberrant expression of noncoding RNAs has been implicated in the pathogenesis of craniofacial abnormalities, providing potential therapeutic targets.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

From soap bubbles to multicellular organisms: Unraveling the role of cell adhesion and physical constraints in tile pattern formation and tissue morphogenesis

Hideru Togashi, Steven Ray Davis, Makoto Sato

Summary: Tile patterns, regulated by cell adhesion molecules, are regular arrangements of cells that play important functional roles in multicellular organisms. The physical constraints and cell adhesion regulate both cell shape and tissue morphogenesis.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

Experimental validation and characterization of putative targets of Escargot and STAT, two master regulators of the intestinal stem cells in Drosophila melanogaster

Armen Khanbabei, Lina Segura, Cynthia Petrossian, Aaron Lemus, Ithan Cano, Courtney Frazier, Armen Halajyan, Donnie Ca, Mariano Loza-Coll

Summary: This article investigates the genetic regulatory mechanisms of Drosophila intestinal stem cells. The study found that most target genes co-regulated by Esg and STAT show a consistent gene expression pattern. However, manipulating these validated targets in vivo rarely replicated the effects of manipulating Esg and STAT, suggesting the presence of complex genetic interactions among the downstream targets of these two master regulator genes.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

Islet architecture in adult mice is actively maintained by Robo2 expression in β cells

Bayley J. Waters, Zoe R. Birman, Matthew R. Wagner, Julia Lemanski, Barak Blum

Summary: Researchers found that conditional deletion of Robo2 in adult mice led to a significant loss of islet architecture without affecting beta cell identity or function, suggesting that Robo2 plays a role in actively maintaining adult islet architecture. Understanding the factors required for islet architecture maintenance is crucial for developing future diabetes therapies.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

Myosin XV is a negative regulator of signaling filopodia during long-range lateral inhibition

Rhiannon Clements, Tyler Smith, Luke Cowart, Jennifer Zhumi, Alan Sherrod, Aidan Cahill, Ginger L. Hunter

Summary: Cell protrusions play a crucial role in regulating cell activities during development. By studying the regulation mechanism in fruit fly sensory bristle patterning, it was found that Myosin XV is essential for the dynamics of signaling filopodia and promotes long-range Notch signaling.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

A robust knock-in approach using a minimal promoter and a minicircle

Margaret Keating, Ryan Hagle, Daniel Osorio-Mendez, Anjelica Rodriguez-Parks, Sarah I. Almutawa, Junsu Kang

Summary: Knock-in reporter (KI) animals are essential for studying gene expression in biomedical research. This study developed a new strategy using minicircle technology and a minimal promoter to enhance knock-in events and establish stable KI transgenic reporter lines. The study also highlighted the importance of selecting the proper KI line due to potential inappropriate influence of genome editing on reporter gene expression.

DEVELOPMENTAL BIOLOGY (2024)

Article Developmental Biology

Neurog1 and Olig2 integrate patterning and neurogenesis signals in development of zebrafish dopaminergic and glutamatergic dual transmitter neurons

Christian Altbuerger, Meta Rath, Daniel Armbruster, Wolfgang Driever

Summary: This study reveals that Neurog1 and Olig2 transcription factors have differential requirements for the development of dopaminergic neurons, and they integrate local patterning signals and Notch neurogenic selection signaling to specify the progenitor population and initiate neurogenesis and differentiation.

DEVELOPMENTAL BIOLOGY (2024)