Results 61 to 70 of about 61,126 (326)

Reduced O-GlcNAcylation of SNAP-23 promotes cisplatin resistance by inducing exosome secretion in ovarian cancer

open access: yesCell Death Discovery, 2021
Exosomes have been associated with chemoresistance in various cancers, but such a role in ovarian cancer is not yet clear. Here, using in vitro cell-based and in vivo mouse model experiments, we show that downregulation of O-GlcNAcylation, a key post ...
Luomeng Qian   +11 more
doaj   +1 more source

Mpp6 Incorporation in the Nuclear Exosome Contributes to RNA Channeling through the Mtr4 Helicase

open access: yesCell Reports, 2017
The RNA-degrading exosome mediates the processing and decay of many cellular transcripts. In the yeast nucleus, the ubiquitous 10-subunit exosome core complex (Exo-9–Rrp44) functions with four conserved cofactors (Rrp6, Rrp47, Mtr4, and Mpp6 ...
Sebastian Falk   +4 more
doaj   +1 more source

RNA Unwinding by the Trf4/Air2/Mtr4 Polyadenylation (TRAMP) Complex [PDF]

open access: yes, 2012
Many RNA-processing events in the cell nucleus involve the Trf4/Air2/Mtr4 polyadenylation (TRAMP) complex, which contains the poly(A) polymerase Trf4p, the Zn-knuckle protein Air2p, and the RNA helicase Mtr4p.
Anderson, James T.   +3 more
core   +2 more sources

iCLIP analysis of RNA substrates of the archaeal exosome

open access: yesBMC Genomics, 2020
Background The archaeal exosome is an exoribonucleolytic multiprotein complex, which degrades single-stranded RNA in 3′ to 5′ direction phosphorolytically. In a reverse reaction, it can add A-rich tails to the 3′-end of RNA.
Jochen Bathke   +9 more
doaj   +1 more source

Cross talk between adipose tissue and placenta in obese and gestational diabetes mellitus pregnancies via exosomes [PDF]

open access: yes, 2017
Obesity is an important public health issue worldwide, where it is commonly associated with the development of metabolic disorders, especially insulin resistance (IR).
Agustin Gutierrez, Jaime   +11 more
core   +2 more sources

Acoustofluidics for simultaneous nanoparticle-based drug loading and exosome encapsulation

open access: yesMicrosystems & Nanoengineering, 2022
Nanocarrier and exosome encapsulation has been found to significantly increase the efficacy of targeted drug delivery while also minimizing unwanted side effects.
Zeyu Wang   +7 more
doaj   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Affinity Purification of the RNA Degradation Complex, the Exosome, from HEK-293 Cells

open access: yesBio-Protocol, 2017
The RNA exosome complex plays a central role in RNA processing and regulated turnover. Present both in cytoplasm and nucleus, the exosome functions through associations with ribonucleases and various adapter proteins (reviewed in [Kilchert et al., 2016]).
Michal Domanski, John LaCava
doaj   +1 more source

Circulating, soluble forms of major histocompatability complex antigens are not exosome‐associated [PDF]

open access: yesEuropean Journal of Immunology, 2006
AbstractIn vitro studies have shown that soluble MHC (sMHC) released by cell lines is bound to nano‐vesicles termed exosomes. It is thought that exosomes may represent the major reservoir of sMHC class I and II molecules in biological fluids. However, most studies have been confined to in vitro assays performed with cell lines.
Philippa A. MacKay   +7 more
openaire   +5 more sources

A proteomic atlas of senescence-associated secretomes for aging biomarker development. [PDF]

open access: yes, 2020
The senescence-associated secretory phenotype (SASP) has recently emerged as a driver of and promising therapeutic target for multiple age-related conditions, ranging from neurodegeneration to cancer.
Basisty, Nathan   +11 more
core   +1 more source

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