Results 111 to 120 of about 277,155 (334)

Self-Generated Chemoattractant Gradients: Attractant Depletion Extends the Range and Robustness of Chemotaxis

open access: yesPLoS Biology, 2016
Chemotaxis is fundamentally important, but the sources of gradients in vivo are rarely well understood. Here, we analyse self-generated chemotaxis, in which cells respond to gradients they have made themselves by breaking down globally available ...
Luke Tweedy   +3 more
semanticscholar   +1 more source

An agarose spot assay for chemotactic invasion

open access: yesBioTechniques, 2010
The directed motility of cells toward the source of a soluble chemical (chemotaxis) plays a role in events ranging from immune function to cancer progression.
Helen L. Wiggins, Joshua Z. Rappoport
doaj   +1 more source

Exact traveling wave solutions of 1D parabolic-parabolic models of chemotaxis [PDF]

open access: yes, 2017
In this paper we consider three different 1D parabolic-parabolic systems of chemotaxis. For these systems we obtain the exact analytical solutions in terms of traveling wave variables.
arxiv   +1 more source

RBC Membrane‐Camouflaged Nanosystem‐Mediated Synergistic Drug Combination for Enhanced Anti‐Tumor Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
An RBC membrane camouflaged, cell‐penetrating peptides R8‐based drug delivery system is constructed to achieve a synergistic combination of natural compounds triptolide (TP) and celastrol (Cel), inducing tumor cell apoptosis, reducing tumor metastasis invasion and triggering autophagy disorder in breast cancer and liver cancer.
Qian Cheng   +6 more
wiley   +1 more source

Sub-logistic source can prevent blow-up in the 2D minimal Keller-Segel chemotaxis system

open access: yes, 2017
It is well-known that the Neumann initial-boundary value problem for the minimal-chemotaxis-logistic system in a 2D bounded smooth domain has no blow-up for any choice of parameters. Here, for a large class of kinetic terms including sub-logistic sources,
Xiang, Tian
core   +1 more source

A real time chemotaxis assay unveils unique migratory profiles amongst different primary murine macrophages.

open access: yesPLoS ONE, 2013
Chemotaxis assays are an invaluable tool for studying the biological activity of inflammatory mediators such as CC chemokines, which have been implicated in a wide range of chronic inflammatory diseases.
Asif J Iqbal   +10 more
doaj   +1 more source

From Mechanoelectric Conversion to Tissue Regeneration: Translational Progress in Piezoelectric Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang   +3 more
wiley   +1 more source

Exosome secretion promotes chemotaxis of cancer cells

open access: yesCell Adhesion & Migration, 2017
Migration of cells toward chemical cues, or chemotaxis, is important for many biologic processes such as immune defense, wound healing and cancer metastasis.
B. Sung, Alissa M. Weaver
semanticscholar   +1 more source

Protein‐Like Polymers Targeting Keap1/Nrf2 as Therapeutics for Myocardial Infarction

open access: yesAdvanced Materials, EarlyView.
We describe a Keap1 targeting protein‐like polymer (PLP) which activates Nrf2, an important cytoprotective transcription factor for relieving myocardial infarction‐induced oxidative stress. This PLP increases cell survival in vitro in multiple relevant cardiac cell types and elicits pro‐reparative responses, improving cardiac function in a preclinical ...
Joshua M. Mesfin   +17 more
wiley   +1 more source

Chemotaxis of bio-hybrid multiple bacteria-driven microswimmers

open access: yesScientific Reports, 2016
In this study, in a bio-hybrid microswimmer system driven by multiple Serratia marcescens bacteria, we quantify the chemotactic drift of a large number of microswimmers towards L-serine and elucidate the associated collective chemotaxis behavior by ...
Zhuang Jiang, M. Sitti
semanticscholar   +1 more source

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