Correlative cryo-ET identifies actin/tropomyosin filaments that mediate cell–substrate adhesion in cancer cells and mechanosensitivity of cell proliferation

ML Cagigas, NS Bryce, N Ariotti, S Brayford… - Nature materials, 2022 - nature.com
The actin cytoskeleton is the primary driver of cellular adhesion and mechanosensing due to
its ability to generate force and sense the stiffness of the environment. At the cell's leading …

Distinct actin–tropomyosin cofilament populations drive the functional diversification of cytoskeletal myosin motor complexes

T Reindl, S Giese, JN Greve, PY Reinke, I Chizhov… - IScience, 2022 - cell.com
The effects of N-terminal acetylation of the high molecular weight tropomyosin isoforms
Tpm1. 6 and Tpm2. 1 and the low molecular weight isoforms Tpm1. 12, Tpm3. 1, and Tpm4 …

Actin filament oxidation by MICAL1 suppresses protections from cofilin‐induced disassembly

H Wioland, S Frémont, B Guichard, A Echard… - EMBO …, 2021 - embopress.org
Proteins of the ADF/cofilin family play a central role in the disassembly of actin filaments, and
their activity must be tightly regulated in cells. Recently, the oxidation of actin filaments by …

Rapid exchange of stably bound protein and DNA cargo on a DNA origami receptor

JWP Brown, RG Alford, JC Walsh, RE Spinney, SY Xu… - ACS …, 2022 - ACS Publications
Biomolecular complexes can form stable assemblies yet can also rapidly exchange their
subunits to adapt to environmental changes. Simultaneously allowing for both stability and …

[HTML][HTML] Cell atlas of trabecular meshwork in glaucomatous non-human primates and DEGs related to tissue contract based on single-cell transcriptomics

X Jia, J Wu, X Chen, S Hou, Y Li, L Zhao, Y Zhu, Z Li… - Iscience, 2023 - cell.com
As the major channel of aqueous humor outflow, dysfunction of trabecular meshwork (TM)
can lead to intraocular pressure elevating, which can trigger primary open-angle glaucoma …

Celebrating 20 years of live single-actin-filament studies with five golden rules

H Wioland, A Jégou… - Proceedings of the …, 2022 - National Acad Sciences
The precise assembly and disassembly of actin filaments is required for several cellular
processes, and their regulation has been scrutinized for decades. Twenty years ago, a …

Myosin-1C differentially displaces tropomyosin isoforms altering their inhibition of motility

LW Pollard, M Boczkowska, R Dominguez… - Journal of Biological …, 2024 - jbc.org
Force generation and motility by actomyosin in nonmuscle cells are spatially regulated by∼
40 tropomyosin (Tpm) isoforms. The means by which Tpms are targeted to specific cellular …

Functional and Structural Properties of Cytoplasmic Tropomyosin Isoforms Tpm1. 8 and Tpm1. 9

KK Lapshina, VV Nefedova, SR Nabiev… - International Journal of …, 2024 - mdpi.com
The actin cytoskeleton is one of the most important players in cell motility, adhesion, division,
and functioning. The regulation of specific microfilament formation largely determines …

Single molecule visualization of tropomyosin isoform organization in the mammalian actin cytoskeleton

ML Cagigas, N Ariotti, J Hook, J Rae, RG Parton… - …, 2024 - Wiley Online Library
The actin cytoskeleton is composed of both branched and unbranched actin filaments. In
mammals, the unbranched actin filaments are primarily copolymers of actin and …

[HTML][HTML] Application of TIRFM in biomolecule research and clinical medicine

Y Zhang - Advances in Biological Chemistry, 2021 - scirp.org
With the increasing demand for imaging quality, many scientists constantly explore new
imaging instruments to meet the requirements. The total internal reflection fluorescence …