Results 21 to 30 of about 439,213 (293)

The Role of Viral Proteins in the Regulation of Exosomes Biogenesis

open access: yesFrontiers in Cellular and Infection Microbiology, 2021
Exosomes are membrane-bound vesicles of endocytic origin, secreted into the extracellular milieu, in which various biological components such as proteins, nucleic acids, and lipids reside.
Xiaonan Jia   +6 more
doaj   +1 more source

Synergistic interaction of fatty acids and oxysterols impairs mitochondrial function and limits liver adaptation during nafld progression [PDF]

open access: yes, 2018
The complete mechanism accounting for the progression from simple steatosis to steatohepatitis in nonalcoholic fatty liver disease (NAFLD) has not been elucidated.
Avolio, Carlo   +11 more
core   +2 more sources

Emerging connections between small RNAs and phytohormones [PDF]

open access: yes, 2020
Small RNAs (sRNAs), mainly including miRNAs and siRNAs, are ubiquitous in eukaryotes. sRNAs mostly negatively regulate gene expression via (post-)transcriptional gene silencing through DNA methylation, mRNA cleavage, or translation inhibition.
Dubois, Marieke   +3 more
core   +2 more sources

Delineating transitions during the evolution of specialised peroxisomes: Glycosome formation in kinetoplastid and diplonemid protists

open access: yesFrontiers in Cell and Developmental Biology, 2022
One peculiarity of protists belonging to classes Kinetoplastea and Diplonemea within the phylum Euglenozoa is compartmentalisation of most glycolytic enzymes within peroxisomes that are hence called glycosomes.
Diego Andrade-Alviárez   +6 more
doaj   +1 more source

Increasing cell density globally enhances the biogenesis of Piwi-interacting RNAs in Bombyx mori germ cells. [PDF]

open access: yes, 2017
Piwi proteins and their bound Piwi-interacting RNAs (piRNAs) are predominantly expressed in the germline and play crucial roles in germline development by silencing transposons and other targets.
Honda, Shozo   +7 more
core   +2 more sources

Electron Tomography to Study the Three-dimensional Structure of Plasmodesmata in Plant Tissues–from High Pressure Freezing Preparation to Ultrathin Section Collection

open access: yesBio-Protocol, 2018
Plasmodesmata (PD) are nanometric (~20 nm wide) membrane lined pores encased in the cell walls of the adjacent plant cells. They allow the cells to exchange all types of molecules ranging from nutrients like sugar, hormones, to RNAs and various proteins.
William Nicolas   +2 more
doaj   +1 more source

The biogenesis pathway of tRNA-derived piRNAs in Bombyx germ cells. [PDF]

open access: yes, 2017
Transfer RNAs (tRNAs) function in translational machinery and further serves as a source of short non-coding RNAs (ncRNAs). tRNA-derived ncRNAs show differential expression profiles and play roles in many biological processes beyond translation ...
Honda, Shozo   +5 more
core   +2 more sources

Lipids or Proteins: Who Is Leading the Dance at Membrane Contact Sites?

open access: yesFrontiers in Plant Science, 2019
Understanding the mode of action of membrane contact sites (MCSs) across eukaryotic organisms at the near-atomic level to infer function at the cellular and tissue levels is a challenge scientists are currently facing. These peculiar systems dedicated to
Jules D. Petit   +4 more
doaj   +1 more source

Current Studies of Mitochondrial Quality Control in the Preeclampsia

open access: yesFrontiers in Cardiovascular Medicine, 2022
Mitochondria are cellular energy powerhouses that play important roles in regulating cellular processes. Mitochondrial quality control (mQC), including mitochondrial biogenesis, mitophagy, mitochondrial fusion and fission, maintains physiological demand ...
Xiaoqing Peng   +9 more
doaj   +1 more source

Retrograde trafficking of Argonaute 2 acts as a rate-limiting step for de novo miRNP formation on endoplasmic reticulum–attached polysomes in mammalian cells [PDF]

open access: yes, 2020
microRNAs are short regulatory RNAs in metazoan cells. Regulation of miRNA activity and abundance is evident in human cells where availability of target messages can influence miRNA biogenesis by augmenting the Dicer1-dependent processing of precursors ...
Barman, Bahnisikha   +4 more
core  

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