Results 1 to 10 of about 50,397 (164)
Assemblies of d-Peptides for Targeting Cell Nucleolus. [PDF]
Bioconjug Chem, 2019 Selectively targeting cell nucleolus remains a challenge. Here we report the first case that D-peptides form membraneless molecular condensates with RNA for targeting cell nucleolus. A D-peptide derivative, enriched with lysine and hydrophobic residues, self-assembles to form nanoparticles, which enter cells through clathrin dependent endocytosis ...
Wang H, Feng Z, Tan W, Xu B.
europepmc +4 more sources
The nucleolus: a paradigm for cell proliferation and aging [PDF]
Brazilian Journal of Medical and Biological Research, 1999 The nucleolus is the cellular site of ribosome biosynthesis. At this site, active ribosomal DNA (rDNA) genes are rapidly transcribed by RNA polymerase I (pol I) molecules.
Comai L.
doaj +5 more sources
Nucleolus and Nucleolar Stress: From Cell Fate Decision to Disease Development
Cells, 2022 Besides the canonical function in ribosome biogenesis, there have been significant recent advances towards the fascinating roles of the nucleolus in stress response, cell destiny decision and disease progression.
Lu Hua +3 more
doaj +3 more sources
The Nucleolus and Parachromatin of the Ascites Tumor Cell [PDF]
Journal of Cell Biology, 1957 1. A method is described for distinguishing the ribonucleoproteins of the nucleolus and parachromatin of ascitic tumor cells of the mouse. 2. In these cells the transfer of ribonucleoprotein from the nucleus to the cytoplasm can occur in two ways.
R Love
exaly +3 more sources
Plant cell nucleolus as a hot spot for iron. [PDF]
J Biol Chem, 2011 Many central metabolic processes require iron as a cofactor and take place in specific subcellular compartments such as the mitochondrion or the chloroplast. Proper iron allocation in the different organelles is thus critical to maintain cell function and integrity.
Roschzttardtz H +6 more
europepmc +6 more sources
ULTRASTRUCTURE OF THE NUCLEOLUS DURING THE CHINESE HAMSTER CELL CYCLE [PDF]
Journal of Cell Biology, 1971 Changes in the structure of the nucleolus during the cell cycle of the Chinese hamster cell in vitro were studied. Quantitative electron microscopic techniques were used to establish the size and volume changes in nucleolar structures. In mitosis, nucleolar remnants, "persistent nucleoli," consisting predominantly of ribosome-like granular material ...
J S, Noel +3 more
exaly +3 more sources
Mètode Science Studies Journal: Annual Review, 2021 Space exploration will require life support systems, in which plants can provide nutrients, oxygen, moisture, and psychological well-being and eliminate wastes. In alien environments, plants must adapt to a different gravity force, even the zero gravity
F. Javier Medina
doaj +1 more source
iScience, 2022 Summary: Discovering the adaptation mechanisms of plants to the space environment is essential for supporting human space exploration. Transcriptomic analyses allow the identification of adaptation response pathways by detecting changes in gene ...
Aránzazu Manzano +3 more
doaj +1 more source
Cells, 2021 Due to their exceptional simplicity of organization, viruses rely on the resources, molecular mechanisms, macromolecular complexes, regulatory pathways, and functional compartments of the host cell for an effective infection process.
Olga V. Iarovaia +3 more
doaj +1 more source
Developmental regulation of nucleolus size during Drosophila eye differentiation. [PDF]
PLoS ONE, 2013 When cell cycle withdrawal accompanies terminal differentiation, biosynthesis and cellular growth are likely to change also. In this study, nucleolus size was monitored during cell fate specification in the Drosophila eye imaginal disc using fibrillarin ...
Nicholas E Baker
doaj +1 more source