Results 81 to 90 of about 229,134 (290)

Non-autonomous insulin signaling delays mitotic progression in C. elegans germline stem and progenitor cells.

PLoS Genetics
Stem and progenitor cell mitosis is essential for tissue development and homeostasis. How these cells ensure proper chromosome segregation, and thereby maintain mitotic fidelity, in the complex physiological environment of a living animal is poorly ...
Eric Cheng, Ran Lu, Abigail R Gerhold
doaj   +1 more source

Mitotic progression, arrest, exit or death relies on centromere structural integrity, rather than de novo transcription

eLife, 2018
Recent studies have challenged the prevailing dogma that transcription is repressed during mitosis. Transcription was also proposed to sustain a robust spindle assembly checkpoint (SAC) response.
Marco Novais-Cruz, Maria Alba Abad, Wilfred FJ van IJcken, Niels Galjart, A Arockia Jeyaprakash, Helder Maiato, Cristina Ferrás   +6 more
doaj   +1 more source

Positive Feedback Keeps Duration of Mitosis Temporally Insulated from Upstream Cell-Cycle Events

Molecules and Cells, 2016
Summary Cell division is characterized by a sequence of events by which a cell gives rise to two daughter cells. Quantitative measurements of cell-cycle dynamics in single cells showed that despite variability in G1-, S-, and G2 phases, duration of ...
A. R. Araújo, L. Gelens, R. Sheriff, Silvia D. M. Santos   +3 more
semanticscholar   +1 more source

A Self‐Organized Liquid Reaction Container for Cellular Memory

Advanced Science, EarlyView.
How cells restore epigenetic information lost during replication is not known. This work proposes a mechanism based on the formation of biomolecular condensates. These condensates are induced by the chromosome itself and serve as reaction vessels for reconstructing missing epigenetic markers.
Sukanta Mukherjee, Enrico Skoruppa, Holger Merlitz, Jens‐Uwe Sommer, Helmut Schiessel   +4 more
wiley   +1 more source

Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53

Advanced Science, EarlyView.
NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore, Andrea Basile, Stefano Freddi, Irene Schiano Lomoriello, Carlo Ribelle Zucca, Giuseppe Ciossani, Luigi Scietti, Alessandro Cuomo, Simona Ronzoni, Simone Pelicci, Mario Faretta, Elena Zaccheroni, Giuliana Pelicci, Vittoria Matafora, Angela Bachi, Rosalind Helen Gunby, Salvatore Pece, Sara Sigismund, Letizia Lanzetti, Ivan Nicola Colaluca, Pier Paolo Di Fiore   +20 more
wiley   +1 more source

Deficiency of mastl, a mitotic regulator, results in cell detachment from developing tissues of zebrafish embryos

Frontiers in Cell and Developmental Biology
To form tissues with unique functions and structures, it is important that the cells that comprise them maintain physical contact. On the other hand, with each mitosis, drastic changes in cell shapes, cell adhesion, and cytoskeletal architecture may ...
Hideko Utsumi, Hideko Utsumi, Taijiro Yabe, Taijiro Yabe, Taijiro Yabe, Sumito Koshida, Sumito Koshida, Sumito Koshida, Akira Yamashita, Akira Yamashita, Akira Yamashita, Shinji Takada, Shinji Takada, Shinji Takada   +13 more
doaj   +1 more source

Phosphorylated ERK5/BMK1 transiently accumulates within division spindles in mouse oocytes and preimplantation embryos

Folia Histochemica et Cytobiologica, 2011
MAP kinases of the ERK family play important roles in oocyte maturation, fertilization, and early embryo development. The role of the signaling pathway involving ERK5 MAP kinase during meiotic and mitotic M-phase of the cell cycle is not well known. Here,
Maria A. Ciemerych, Jacek Z. Kubiak, Aude Pascal, Zuzanna Maciejewska   +3 more
doaj   +1 more source

The duration of mitosis and daughter cell size are modulated by nutrients in budding yeast

bioRxiv, 2016
The size of nearly all cells is modulated by nutrients. Thus, cells growing in poor nutrients can be nearly half the size of cells in rich nutrients. In budding yeast, cell size is thought to be controlled almost entirely by a mechanism that delays cell ...
Ricardo M. Leitao, D. Kellogg
semanticscholar   +1 more source

KDM4A Erases the H3R17me2a Mark, Facilitating Chromosome Condensation

Advanced Science, EarlyView.
This study reveals a reversible histone modification switch governing chromosome condensation during mitosis. PKCα‐activated KDM4A removes H3R17me2a, permitting Suv39h1‐driven H3K9me3 deposition. This epigenetic transition recruits the chromosomal passenger complex and triggers Aurora B‐dependent H3S10 phosphorylation, coordinating chromatin remodeling
Yena Cho, Jee Won Hwang, Gyu Hwan Hyun, Sangkyu Lee, Dae‐Geun Song, Su‐Nam Kim, Yong Kee Kim   +6 more
wiley   +1 more source

Unveiling an Arpp-19 phosphorylation switch that grants chromosome stability

Communications Biology
During cell division, the onset of mitosis is granted by activation of cyclin B-dependent kinase 1 (Cdk1), master mitotic kinase, coordinated with inactivation of Cdk1-counteracting phosphatases.
Angela Flavia Serpico, Caterina Pisauro, Asia Trano, Domenico Grieco   +3 more
doaj   +1 more source