Results 31 to 40 of about 12,439 (207)

Non-canonical activation of OmpR drives acid and osmotic stress responses in single bacterial cells

open access: yesNature Communications, 2017
OmpR is a transcription factor activated in acid and osmotic responses of Gram-negative bacteria, leading to acidification of the bacterial cytoplasm.
Smarajit Chakraborty   +4 more
doaj   +1 more source

Active biomaterials for mechanobiology

open access: yesBiomaterials, 2021
Active biomaterials offer novel approaches to study mechanotransduction in mammalian cells. These material systems probe cellular responses by dynamically modulating their resistance to endogenous forces or applying exogenous forces on cells in a temporally controlled manner.
Özkale B, Sakar MS, Mooney DJ
openaire   +4 more sources

Novel localization of formin mDia2: importin β-mediated delivery to and retention at the cytoplasmic side of the nuclear envelope

open access: yesBiology Open, 2015
The formin family proteins are important regulators of actin polymerization that are involved in many cellular processes. However, little is known about their specific cellular localizations.
Xiaowei Shao   +3 more
doaj   +1 more source

Squeezing the eggs to grow: The mechanobiology of mammalian folliculogenesis

open access: yesFrontiers in Cell and Developmental Biology, 2022
The formation of functional eggs (oocyte) in ovarian follicles is arguably one of the most important events in early mammalian development since the oocytes provide the bulk genetic and cytoplasmic materials for successful reproduction.
Arikta Biswas   +4 more
doaj   +1 more source

3D Bioprinted Breast Cancer‐Stroma Model with Tailored Migration‐Permissive Bioink Reveals Impact of Adipose‐Derived Stromal Cells on Cancer Cell Migration and Invasion Dynamics

open access: yesAdvanced Healthcare Materials, EarlyView.
A migration‐permissive bioink composed of methacrylated collagen type I and thiolated hyaluronic acid enables 3D bioprinting of breast cancer‐stroma models. Single‐cell tracking reveals that adipose stromal cells enhance tumor cell motility and stromal invasion, accompanied by collagen remodeling, and a shift in tumor cell morphology.
Sabrina Stecher   +19 more
wiley   +1 more source

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz   +9 more
wiley   +1 more source

A Modular Liver–Microbial Microfluidic Platform to Evaluate Therapeutic and Adverse Effects of Microbial Metabolites

open access: yesAdvanced Healthcare Materials, EarlyView.
This study introduces a modular microfluidic platform that connects liver cells with live microbes to mimic key aspects of the gut–liver interaction in steatosis. Using this system, both microbial metabolites and live bacteria significantly reduced fat accumulation in liver cells, but live microbes triggered inflammation and broader metabolic changes ...
Hsih‐Yin Tan   +7 more
wiley   +1 more source

Surface mechanics and compressive stress impact mammalian follicle development

open access: yesNature Communications
The maturation of functional eggs in ovaries is essential for successful reproduction in mammals. Despite its biological and clinical importance, the underlying mechanisms regulating folliculogenesis remain enigmatic.
Arikta Biswas   +11 more
doaj   +1 more source

Integrin-Matrix Clusters Form Podosome-like Adhesions in the Absence of Traction Forces

open access: yesCell Reports, 2013
Matrix-activated integrins can form different adhesion structures. We report that nontransformed fibroblasts develop podosome-like adhesions when spread on fluid Arg-Gly-Asp peptide (RGD)-lipid surfaces, whereas they habitually form focal adhesions on ...
Cheng-han Yu   +6 more
doaj   +1 more source

Dynamic Loading Regulates Meniscus‐Like Matrix Production in Human Mesenchymal Stromal Cell‐Seeded PET Scaffolds

open access: yesAdvanced Healthcare Materials, EarlyView.
Dynamic compression enhances mesenchymal stromal cell proliferation in nonwoven PET scaffolds under chondrogenic differentiation conditions and triggers mechanosensitive transcriptional programs associated with extracellular matrix remodeling. These findings highlight the potential of mechanically stimulated PET scaffolds as a promising platform for ...
Graciosa Quelhas Teixeira   +8 more
wiley   +1 more source

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