Results 81 to 90 of about 1,866,196 (278)

A-type lamins and Hutchinson-Gilford progeria syndrome: pathogenesis and therapy [PDF]

Frontiers in Bioscience, 2011
Lamin A and lamin C (A-type lamins, both encoded by the LMNA gene) are major components of the mammalian nuclear lamina, a complex proteinaceous structure that acts as a scaffold for protein complexes that regulate nuclear structure and function. Abnormal accumulation of farnesylated-progerin, a mutant form of prelamin A, plays a key role in the ...
Gonzalez, Jose M, Pla, Davinia, Perez-Sala, Dolores, Andres, Vicente   +3 more
openaire   +4 more sources

Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype

Advanced Functional Materials, EarlyView.
In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He, Wang Sik Lee, Phattadon Yajan, Aaron Lee, Mauro Sousa de Almeida, Sandeep Keshavan, Jozef Adamcik, Céline Loussert‐Fonta, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +10 more
wiley   +1 more source

Distinct Fiber Type Signature in Mouse Muscles Expressing a Mutant Lamin A Responsible for Congenital Muscular Dystrophy in a Patient

Cells, 2017
Specific mutations in LMNA, which encodes nuclear intermediate filament proteins lamins A/C, affect skeletal muscle tissues. Early-onset LMNA myopathies reveal different alterations of muscle fibers, including fiber type disproportion or prominent ...
Alice Barateau, Nathalie Vadrot, Onnik Agbulut, Patrick Vicart, Sabrina Batonnet-Pichon, Brigitte Buendia   +5 more
doaj   +1 more source

Structure and unique mechanical aspects of nuclear lamin filaments.

Current Opinion in Structural Biology, 2020
The major constituent of the nuclear envelope is the nuclear lamina. A fibrous meshwork of lamin filaments spanning underneath the nuclear membrane provides mechanical support to the nucleus.
Rafael Tenga, O. Medalia
semanticscholar   +1 more source

The Floor‐Ceiling‐Chip, or 2 × 2D = Pseudo‐3D—Approaching 3D Cell Morphology and Organization between Two Opposing 2D Substrates with Cell‐Adhesive Protein Micropatterns

Advanced Healthcare Materials, EarlyView.
Here, we present a novel 3D cell patterning and culture platform. The “Floor‐Ceiling‐Chip” (FC‐Chip) consists of two opposing track‐etched membranes, creating a pseudo‐3D microenvironment for the cells in between. By providing the membranes with micropatterned cell‐adhesive islands of varying geometries and sizes, the FC‐Chip enables control over cell ...
Urandelger Tuvshindorj, Francesca Giacomini, Esra Güben Kaçmaz, Tim ten Brink, Lorenzo Moroni, Zeinab Tahmasebi Birgani, Clemens van Blitterswijk, Pamela Habibović, Stefan Giselbrecht, Jan de Boer, Roman Truckenmüller   +10 more
wiley   +1 more source

Common Signatures of Altered Gene Regulation and Invasiveness of Different Breast Cancer Cell Lines after Matrix Interface Crossing

Advanced Healthcare Materials, EarlyView.
Interface transmigration reprograms triple‐negative breast cancer cells, triggering a shared switch toward more aggressive and invasive phenotypes. Using a collagen I interface model, this study identifies shared transcriptional changes involving proliferation, chromatin remodeling, and DNA repair pathways.
Cornelia Clemens, Hannah Trampert, Nataliia Kotsiuba, Tilo Pompe   +3 more
wiley   +1 more source

Overexpression and cytoplasmic localization of caspase-6 is associated with lamin A degradation in set of ovarian cancers

Biomarker Research, 2018
Background In most women with ovarian cancer, the diagnosis occurs after dissemination of tumor cells beyond ovaries. Several molecular perturbations occur ahead of tumor initiation including loss of lamin A/C. Our hypothesis was that the loss of nuclear
Callinice D Capo-chichi, Kathy Q Cai, Xiang-Xi Xu   +2 more
doaj   +1 more source

Tendon Organoids Enable Functional Tendon Rejuvenation Through ALKBH5‐Dependent RNA Demethylation

Advanced Science, EarlyView.
FT organoids reverse the aged phenotype of tendon cells, reinstating a fetal‐like state. This breakthrough establishes a potent cell source for tendon tissue engineering, effectively advancing regenerative medicine. ABSTRACT Adult tendon injuries pose a major clinical challenge due to limited self‐repair capacity, resulting in suboptimal regeneration ...
Tian Qin, Aini Pan, Zhuoning Miao, Yanyan Zhao, Xianan Mo, Heng Sun, Chunmei Fan, Junyu Guo, Bingbing Wu, Weiliang Shen, Qiangqiang Zheng, Jun Lu, Xi Jiang, Zi Yin, Xiao Chen   +14 more
wiley   +1 more source

ABHD7-mediated depalmitoylation of lamin A promotes myoblast differentiation

Cell Reports
Summary: LMNA gene mutation can cause muscular dystrophy, and post-translational modification plays a critical role in regulating its function. Here, we identify that lamin A is palmitoylated at cysteine 522, 588, and 591 residues, which are reversely ...
Yuan Shen, Liang-Liang Zheng, Cai-Yun Fang, Yao-Yao Xu, Chao Wang, Jin-Tao Li, Ming-Zhu Lei, Miao Yin, Hao-Jie Lu, Qun-Ying Lei, Jia Qu   +10 more
doaj   +1 more source

A-type lamins maintain the positional stability of DNA damage repair foci in mammalian nuclei.

PLoS ONE, 2013
A-type lamins encoded by LMNA form a structural fibrillar meshwork within the mammalian nucleus. How this nuclear organization may influence the execution of biological processes involving DNA transactions remains unclear.
Robert Mahen, Hiroyoshi Hattori, Miyoung Lee, Pooja Sharma, Anand D Jeyasekharan, Ashok R Venkitaraman   +5 more
doaj   +1 more source