Results 51 to 60 of about 57,043 (220)

Static and dynamic lengths of neutrophil microvilli [PDF]

open access: yesProceedings of the National Academy of Sciences, 1998
Containing most of the L-selectin and P-selectin glycoprotein ligand-1 (PSGL-1) on their tips, microvilli are believed to promote the initial arrest of neutrophils on endothelium. At the rolling stage following arrest, the lifetimes of the involved molecular bonds depend on the pulling force imposed by the shear stress of blood flow. With two different
J Y, Shao   +2 more
openaire   +2 more sources

The ageing holobiont: crosstalk between telomere dynamics, oxidative stress and the gut microbiome

open access: yesBiological Reviews, EarlyView.
ABSTRACT The gut tissue is at the frontline of early onset of ageing. It exhibits high cell turnover rates and rapid telomere shortening, which can have systemic effects on the developing or senescing organism. We conducted a literature review of studies on the crosstalk between telomere length dynamics, telomerase activity, oxidative stress, and gut ...
Michael L. Pepke   +2 more
wiley   +1 more source

A cell line derived from BBN (N-butyl-N-[4-hydroxybutyl]-nitrosamine)-induced rat bladder cancer: establishment and scanning electron microscopic cell surface characteristics [PDF]

open access: yes, 1978
This research was performed to establish a cell line from experimental bladder tumor and to discuss the biological characteristics of the cell line so established. Tissue cultures of epithelial cells were derived from a rat bladder cancer induced by BBN.
Nishi, Mitsuo
core   +1 more source

The cellular protrusions for inter-cellular material transfer: similarities between filopodia, cytonemes, tunneling nanotubes, viruses, and extracellular vesicles

open access: yesFrontiers in Cell and Developmental Biology
Extracellular vesicles (EVs) are crucial for transferring bioactive materials between cells and play vital roles in both health and diseases. Cellular protrusions, including filopodia and microvilli, are generated by the bending of the plasma membrane ...
Hooi Ting Hu   +7 more
doaj   +1 more source

Rhombic organization of microvilli domains found in a cell model of the human intestine. [PDF]

open access: yesPLoS ONE, 2018
Symmetry is rarely found on cellular surfaces. An exception is the brush border of microvilli, which are essential for the proper function of transport epithelia. In a healthy intestine, they appear densely packed as a 2D-hexagonal lattice.
Jonas Franz   +7 more
doaj   +1 more source

Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane‐Fly Spermatocytes

open access: yesCytoskeleton, EarlyView.
ABSTRACT Elastic tethers connect telomeres of separating chromosomes in anaphase of animal cells. Immunofluorescence staining of titin in crane‐fly spermatocytes, using 4 different antibodies, shows that the giant elastic protein titin seems to be a component of mitotic tethers: titin “strands” extend between separating chromosomes, connecting their ...
Demetra Economopoulos   +5 more
wiley   +1 more source

Biophysical modelling of a drosophila photoreceptor [PDF]

open access: yes, 2009
It remains unclear how visual information is co-processed by different layers of neurons in the retina. In particular, relatively little is known how retina translates vast environmental light changes into neural responses of limited range.
Billings, S.   +5 more
core  

Nature's conveyor belt - the matrix mediated biomineralization of magnetite in chitons (Mollusca) [PDF]

open access: yes, 2009
Chitons are marine molluscs that use a variety of iron and calcium based minerals to harden their teeth, which they use to scrape algae growing upon, and within, rocks.
Brooker, L.R.   +4 more
core   +2 more sources

Phagocytic Mesothelial Cells in Pericardial Effusion Following Allogeneic Peripheral Blood Stem Cell Transplantation for Chronic Active Epstein–Barr Virus Infection: A Distinctive Cytomorphological and Immunocytochemical Case Study

open access: yesDiagnostic Cytopathology, EarlyView.
ABSTRACT Phagocytic activity of mesothelial cells is a rare phenomenon requiring careful differentiation from histiocytic hemophagocytosis to ensure appropriate patient management, as these phenomena could exhibit distinct clinical implications. In this study, we report a case of phagocytic mesothelial cells found in pericardial effusion that developed
Hidetoshi Satomi   +5 more
wiley   +1 more source

Isolation and primary cultures of human intrahepatic bile ductular epithelium [PDF]

open access: yes, 1988
A technique for the isolation of human intrahepatic bile ductular epithelium, and the establishment of primary cultures using a serum- and growth-factor-supplemented medium combined with a connective tissue substrata is described.
A. E. Sirica   +24 more
core   +1 more source

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