Results 131 to 140 of about 182,132 (342)

Conditioned Media from Mechanically Stimulated Macrophages Upregulate Osteogenic Genes in Human Mesenchymal Stromal Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Bone fracture healing is a complex, timely orchestrated scenario involving multiple cell types and a plethora of cytokines and regulatory factors. To gain further insight, an in vitro model to a) study macrophage polarization under mechanical load in a fibrin hydrogel and b) subsequently assess the effect of conditioned media derived from macrophages ...
Anne Géraldine Guex   +4 more
wiley   +1 more source

Exosome Secretion Is Enhanced by Invadopodia and Drives Invasive Behavior

open access: yesCell Reports, 2013
Unconventional secretion of exosome vesicles from multivesicular endosomes (MVEs) occurs across a broad set of systems and is reported to be upregulated in cancer, where it promotes aggressive behavior. However, regulatory control of exosome secretion is
Daisuke Hoshino   +7 more
doaj   +1 more source

Nuclear RNA Surveillance in \u3cem\u3eSaccharomyces cerevisiae\u3c/em\u3e: Trf4p-dependent Polyadenylation of Nascent Hypomethylated tRNA and an Aberrant Form of 5S rRNA [PDF]

open access: yes, 2006
1-Methyladenosine modification at position 58 of tRNA is catalyzed by a two-subunit methyltransferase composed of Trm6p and Trm61p in Saccharomyces cerevisiae.
Anderson, James T.   +2 more
core   +1 more source

Broad role for YBX1 in defining the small noncoding RNA composition of exosomes. [PDF]

open access: yes, 2017
RNA is secreted from cells enclosed within extracellular vesicles (EVs). Defining the RNA composition of EVs is challenging due to their coisolation with contaminants, lack of knowledge of the mechanisms of RNA sorting into EVs, and limitations of ...
Lambowitz, Alan M   +6 more
core   +1 more source

Guided Bone Regeneration Membrane Materials Loaded with Chimeric Nanovesicles Promote Early Bone Defect Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Early bone regeneration is challenged by poor osteogenic microenvironments. We developed a novel guided bone regeneration (GBR) membrane: a plasma‐treated polycaprolactone (PT‐PCL) electrospun nanofiber functionalized with ultrasound sequentially extruded stromal vascular fraction chimeric vesicles (USE‐SCNVs). USE‐SCNVs require less equipment, enhance
Yufan Zhang   +13 more
wiley   +1 more source

Multidimensional Effects of Stress on Neuronal Exosome Levels and Simultaneous Transcriptomic Profiles

open access: yesBiological Psychiatry Global Open Science
Background: An excess of exosomes, nanovesicles released from all cells and key regulators of brain plasticity, is an emerging therapeutic target for stress-related mental illnesses.
Hope Kronman   +8 more
doaj   +1 more source

Targeted delivery of lysosomal enzymes to the endocytic compartment in human cells using engineered extracellular vesicles. [PDF]

open access: yes, 2019
Targeted delivery of lysosomal enzymes to the endocytic compartment of human cells represents a transformative technology for treating a large family of lysosomal storage diseases (LSDs).
Brown, Annie   +4 more
core   +1 more source

Microvesicles as vehicles for tissue regeneration: Changing of the guards [PDF]

open access: yes, 2016
Purpose of Review: Microvesicles (MVs) have been recognised as mediators of stem cell function, enabling and guiding their regenerative effects. Recent Findings: MVs constitute one unique size class of extracellular vesicles (EVs) directly shed from ...
Davies, R. Wayne   +3 more
core   +1 more source

Targeted inhibition of SIRT6 via engineered exosomes impairs tumorigenesis and metastasis in prostate cancer

open access: gold, 2021
Qing Han   +9 more
openalex   +1 more source

Desktop-stereolithography 3D printing of a radially oriented extracellular matrix/mesenchymal stem cell exosome bioink for osteochondral defect regeneration

open access: yesTheranostics, 2019
Mitochondrial dysfunction and oxidative stress damage are hallmarks of osteoarthritis (OA). Mesenchymal stem cell (MSC)-derived exosomes are important in intercellular mitochondria communication.
Pengfei Chen   +14 more
semanticscholar   +1 more source

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