Cellular Pressure and Volume Regulation and Implications for Cell Mechanics DOI Creative Commons
Hongyuan Jiang, Sean X. Sun

Biophysical Journal, Journal Year: 2013, Volume and Issue: 105(3), P. 609 - 619

Published: Aug. 1, 2013

In eukaryotic cells, small changes in cell volume can serve as important signals for proliferation, death, and migration. Volume shape regulation also directly impacts the mechanics of cells tissues. Here, we develop a mathematical model cellular pressure regulation, incorporating essential elements such water permeation, mechanosensitive channels, active ion pumps, stresses cortex. The fully explain recent experimental data, it predicts several models cortical mechanics. Moreover, show that when are subjected to an externally applied load, atomic force microscopy indentation experiment, leads complex response. Instead passive cortex, observed stiffness depends on factors working together. This provides explanation rate-dependent response under force.

Language: Английский

Physical properties of the cytoplasm modulate the rates of microtubule polymerization and depolymerization DOI Creative Commons
Arthur T. Molines, Joël Lemière, Morgan Gazzola

et al.

Developmental Cell, Journal Year: 2022, Volume and Issue: 57(4), P. 466 - 479.e6

Published: Feb. 1, 2022

The cytoplasm is a crowded, visco-elastic environment whose physical properties change according to physiological or developmental states. How the of impact cellular functions in vivo remains poorly understood. Here, we probe effects cytoplasmic concentration on microtubules by applying osmotic shifts fission yeast, moss, and mammalian cells. We show that rates both microtubule polymerization depolymerization scale linearly inversely with concentration; an increase decreases proportionally, whereas decrease leads opposite. Numerous lines evidence indicate these are due changes viscosity rather than stress responses macromolecular crowding per se. reconstituted vitro tuning viscosity. Our findings that, even normal conditions, modulates reactions underlie dynamic behaviors.

Language: Английский

Citations

102

Hydrogels as functional components in artificial cell systems DOI
Matthew E. Allen, James W. Hindley, Divesh K. Baxani

et al.

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(8), P. 562 - 578

Published: July 27, 2022

Language: Английский

Citations

96

In Response to Precision Medicine: Current Subcellular Targeting Strategies for Cancer Therapy DOI
Zheng Li, Jianhua Zou, Xiaoyuan Chen

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(21)

Published: Nov. 29, 2022

Abstract Emerging as a potent anticancer treatment, subcellular targeted cancer therapy has drawn increasing attention, bringing great opportunities for clinical application. Here, two targeting strategies four main organelles (mitochondria, lysosome, endoplasmic reticulum, and nucleus), including molecule‐ nanomaterial (inorganic nanoparticles, micelles, organic polymers, others)‐based delivery or therapeutic strategies, are summarized. Phototherapy, chemotherapy, radiotherapy, immunotherapy, “all‐in‐one” combination among the covered in detail. Such materials constructed based on specific properties relevant mechanisms of organelles, enabling elimination tumors by inducing dysfunction corresponding destroying structures. The challenges faced organelle‐targeting therapies also Looking forward, paradigm with enhanced efficacy compared to current approaches is envisioned.

Language: Английский

Citations

75

Single-Cell Mechanics: Structural Determinants and Functional Relevance DOI
Marta Urbanska, Jochen Guck

Annual Review of Biophysics, Journal Year: 2024, Volume and Issue: 53(1), P. 367 - 395

Published: Feb. 21, 2024

The mechanical phenotype of a cell determines its ability to deform under force and is therefore relevant cellular functions that require changes in shape, such as migration or circulation through the microvasculature. On practical level, can be used global readout cell's functional state, marker for disease diagnostics, an input tissue modeling. We focus our review on current knowledge structural components contribute determination properties highlight physiological processes which cells critical relevance. ongoing efforts understand how efficiently measure control will define progress field drive phenotyping toward clinical applications.

Language: Английский

Citations

19

Cellular Pressure and Volume Regulation and Implications for Cell Mechanics DOI Creative Commons
Hongyuan Jiang, Sean X. Sun

Biophysical Journal, Journal Year: 2013, Volume and Issue: 105(3), P. 609 - 619

Published: Aug. 1, 2013

In eukaryotic cells, small changes in cell volume can serve as important signals for proliferation, death, and migration. Volume shape regulation also directly impacts the mechanics of cells tissues. Here, we develop a mathematical model cellular pressure regulation, incorporating essential elements such water permeation, mechanosensitive channels, active ion pumps, stresses cortex. The fully explain recent experimental data, it predicts several models cortical mechanics. Moreover, show that when are subjected to an externally applied load, atomic force microscopy indentation experiment, leads complex response. Instead passive cortex, observed stiffness depends on factors working together. This provides explanation rate-dependent response under force.

Language: Английский

Citations

193