Results 101 to 110 of about 92,845 (317)

Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells

Advanced Science, EarlyView.
Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale, Luca Messina, Valeria Panzetta, Stefania Saporito, Costantino Menna, Maurizio Ventre, Paolo A. Netti   +6 more
wiley   +1 more source

A Unified Linear Viscoelastic Model of the Cell Nucleus Defines the Mechanical Contributions of Lamins and Chromatin

Advanced Science, 2020
The cell nucleus is constantly subjected to externally applied forces. During metazoan evolution, the nucleus has been optimized to allow physical deformability while protecting the genome under load.
Oren Wintner, Nivi Hirsch‐Attas, Miriam Schlossberg, Fani Brofman, Roy Friedman, Meital Kupervaser, Danny Kitsberg, Amnon Buxboim   +7 more
doaj   +1 more source

Probing the environment of emerin by Enhanced ascorbate peroxidase 2 (APEX2)-mediated proximity labeling. [PDF]

, 2020
Emerin is one of the best characterized proteins of the inner nuclear membrane, but can also occur at the level of the endoplasmic reticulum. We now use enhanced ascorbate peroxidase 2 (APEX2) to probe the environment of emerin.
James, C., Kehlenbach, R., Lenz, C., Müller, M., Urlaub, H.   +4 more
core   +1 more source

Lamin B1 loss promotes lung cancer development and metastasis by epigenetic derepression of RET

Journal of Experimental Medicine, 2019
Jia et al. demonstrate that lamin B1 acts as a tumor suppressor in lung cancer. Lamin B1 loss promotes lung cancer development and metastasis by loss of PRC2 recruitment to chromatin and activation of the RET/p38 signaling axis.
Yanhan Jia, Joaquim Vong, Alina Asafova, B. Garvalov, Luca Caputo, Julio Cordero, Anshu Singh, T. Boettger, S. Günther, L. Fink, T. Acker, G. Barreto, W. Seeger, T. Braun, R. Savai, G. Dobreva   +15 more
semanticscholar   +1 more source

BGN/MDK Axis in the Melanoma Tumor Microenvironment Strengthens Tumor Malignancy by Modulating Cancer Cells and Cancer‐Associated Fibroblasts Crosstalk

Advanced Science, EarlyView.
This study reveals that m6A regulators cooperatively upregulate BGN in melanoma, promoting malignancy. Within the tumor microenvironment, CAFs show highest BGN expression. The BGN/MDK axis mediates cancer‐stroma crosstalk, driving normal fibroblast (NF) activation and enhancing the pro‐tumor effect of CAFs, highlighting a promising therapeutic target ...
Hao‐ze Shi, Ming‐yang Wu, Jin‐quan Liu, Cuicui Tian, Li Ma, Xue‐mei Zhou, Ze‐Hao Sun, Zhi‐yong Xu, Run‐dong Zhang, Shan‐yuan Ye, Li‐ming Huang, Yan Wang, Jing‐shu Xiong, Wen‐bo Bu, Xian‐feng Cheng, Jian‐fang Sun, Hao Chen   +16 more
wiley   +1 more source

Changes in the nuclear distribution of DNA polymerase alpha and PCNA/cyclin during the progress of the cell cycle, in a cell-free extract of Xenopus eggs [PDF]

, 1989
The nuclear distribution of DNA polymerase alpha and PCNA/cyclin in embryonic nuclei has been investigated, in a cell-free extract of Xenopus eggs that recapitulates a basic cell-cycle in vitro, by indirect immunofluorescence microscopy.
Hutchison, C, Kill, IR
core  

Nuclear lamin A/C harnesses the perinuclear apical actin cables to protect nuclear morphology

Nature Communications, 2017
The distinct spatial architecture of the apical actin cables (or actin cap) facilitates rapid biophysical signaling between extracellular mechanical stimuli and intracellular responses, including nuclear shaping, cytoskeletal remodeling, and the ...
Jeong-Ki Kim, A. Louhghalam, Geonhui Lee, B. Schafer, D. Wirtz, Dong-Hwee Kim   +5 more
semanticscholar   +1 more source

Timing Mechanotransduction: Mechanically Dynamic Biomaterials Reveal the Temporal Hierarchy of YAP/TAZ Control Nodes

Advanced Science, EarlyView.
This work develops dynamically softening polyacrylamide hydrogels for time‐resolved imaging during continuous mechanical transitions. The study revealed that mechanotransduction is biphasic; YAP/TAZ inactivation is driven by early loss of the nucleocytoskeletal continuum connecting subnuclear adhesions, F‐actin, and the nuclear envelope, coupled with ...
Alessandro Gandin, Giada Vanni, Veronica Torresan, Margherita Pelosin, Rebecca Busetto, Anna Citron, Ambela Suli, Paolo Contessotto, Carlo Albanese, Francesca Zanconato, Tito Panciera, Stefano Piccolo, Giovanna Brusatin   +12 more
wiley   +1 more source

The Emerging Role of Lamin C as an Important LMNA Isoform in Mechanophenotype

Frontiers in Cell and Developmental Biology, 2018
Lamin A and lamin C isoforms of the gene LMNA are major structural and mechanotransductive components of the nuclear lamina. Previous reports have proposed lamin A as the isoform with the most dominant contributions to cellular mechanophenotype. Recently,
Rafael D. González-Cruz, Kris N. Dahl, Eric M. Darling, Eric M. Darling   +3 more
doaj   +1 more source

Lamin A molecular compression and sliding as mechanisms behind nucleoskeleton elasticity

Nature Communications, 2019
Lamin A is a nuclear intermediate filament protein critical for nuclear architecture and mechanics and mutated in a wide range of human diseases. Yet little is known about the molecular architecture of lamins and mechanisms of their assembly. Here we use

semanticscholar   +1 more source