Recovery of Murine Lens Epithelial Cells from Single and Fractionated Doses of X Rays and Neutrons

1988 ◽  
Vol 114 (3) ◽  
pp. 567 ◽  
Author(s):  
Edgar F. Riley ◽  
Richard C. Miller ◽  
Alice L. Lindgren
Keyword(s):  
Epithelial Cells ◽  
Lens Epithelial Cells ◽  
X Rays

scholarly journals Radiation-Induced Alterations in Proliferation, Migration, and Adhesion in Lens Epithelial Cells and Implications for Cataract Development

2022 ◽  
Vol 9 (1) ◽  
pp. 29
Author(s):  
Graysen Vigneux ◽  
Jake Pirkkanen ◽  
Taylor Laframboise ◽  
Hallie Prescott ◽  
Sujeenthar Tharmalingam ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Radiation Effects ◽  
Lens Epithelial Cells ◽  
Boyden Chamber ◽  
X Rays ◽  
Functional Changes ◽  
Transcriptional Alterations ◽  
Transcriptional Changes ◽  
Radiation Induced ◽  
Cataract Development

The lens of the eye is one of the most radiosensitive tissues. Although the exact mechanism of radiation-induced cataract development remains unknown, altered proliferation, migration, and adhesion have been proposed as factors. Lens epithelial cells were exposed to X-rays (0.1–2 Gy) and radiation effects were examined after 12 h and 7 day. Proliferation was quantified using an MTT assay, migration was measured using a Boyden chamber and wound-healing assay, and adhesion was assessed on three extracellular matrices. Transcriptional changes were also examined using RT-qPCR for a panel of genes related to these processes. In general, a nonlinear radiation response was observed, with the greatest effects occurring at a dose of 0.25 Gy. At this dose, a reduction in proliferation occurred 12 h post irradiation (82.06 ± 2.66%), followed by an increase at 7 day (116.16 ± 3.64%). Cell migration was increased at 0.25 Gy, with rates 121.66 ± 6.49% and 232.78 ± 22.22% greater than controls at 12 h and 7 day respectively. Cell adhesion was consistently reduced above doses of 0.25 Gy. Transcriptional alterations were identified at these same doses in multiple genes related to proliferation, migration, and adhesion. Overall, this research began to elucidate the functional changes that occur in lens cells following radiation exposure, thereby providing a better mechanistic understanding of radiation-induced cataract development.

Oxidative and nitrative stress-related changes in human lens epithelial cells following exposure to X-rays

2018 ◽  
Vol 94 (4) ◽  
pp. 366-373 ◽  
Author(s):  
Simran Bahia ◽  
Erica Blais ◽  
Sangeeta Murugkar ◽  
Vinita Chauhan ◽  
Premkumari Kumarathasan
Keyword(s):  
Epithelial Cells ◽  
Human Lens ◽  
Lens Epithelial Cells ◽  
X Rays ◽  
Human Lens Epithelial Cells ◽  
Nitrative Stress

Platelet Microtubule Subunit Proteins

1979 ◽  
Vol 42 (05) ◽  
pp. 1630-1633 ◽  
Author(s):  
A G Castle ◽  
N Crawford
Keyword(s):  
Epithelial Cells ◽  
Gel Electrophoresis ◽  
Blood Platelets ◽  
Polyacrylamide Gel Electrophoresis ◽  
Polyacrylamide Gel ◽  
Lens Epithelial Cells ◽  
Molecular Weights ◽  
Kinetics Of ◽  
Microtubular Structures

SummaryBlood platelets contain microtubule proteins (tubulin and HMWs) which can be polymerised “in vitro” to form structures which resemble the microtubules seen in the intact platelet. Platelet tubulin is composed of two non-identical subunits a and p tubulin which have molecular weights around 55,000 but can be resolved in alkaline SDS-polyacrylamide gel electrophoresis. These subunits associate as dimers with sedimentation coefficients of about 5.7 S although it is not known whether the dimer protein is a homo- or hetero-dimer. The dimer tubulin binds the anti-mitotic drug colchicine and the kinetics of this binding are similar to those reported for neurotubulins. Platelet microtubules also contain two HMW proteins which appear to be essential and integral components of the fully assembled microtubule. These proteins have molecular weights greater than 200,000 daltons. Fluorescent labelled antibodies to platelet and brain tubulins stain long filamentous microtubular structures in bovine lens epithelial cells and this pattern of staining is prevented by exposing the cells to conditions known to cause depolymerisation of cell microtubules.

Phototoxicity in Human Lens Epithelial Cells Promoted by St. John's Wort¶

2004 ◽  
Vol 80 (3) ◽  
pp. 583 ◽  
Author(s):  
Yu-Ying He ◽  
Colin F. Chignell ◽  
David S. Miller ◽  
Usha P. Andley ◽  
Joan E. Roberts
Keyword(s):  
Epithelial Cells ◽  
Human Lens ◽  
Lens Epithelial Cells ◽  
St John’S Wort ◽  
Human Lens Epithelial Cells ◽  
St John's Wort

Influence of a lymphocyte-conditioned medium on the expression of smooth-muscle α-aktin in lens epithelial cells in situ

1999 ◽  
Vol 96 (3) ◽  
pp. 174-181
Author(s):  
Kerstin Wunderlich ◽  
Marcus Knorr ◽  
H. Northoff ◽  
Hans-J. Thiel
Keyword(s):  
Smooth Muscle ◽  
Epithelial Cells ◽  
Conditioned Medium ◽  
Lens Epithelial Cells

scholarly journals P 229 Growth of human lens epithelial cells on the anterior lens capsule in vitro

1995 ◽  
Vol 35 ◽  
pp. S199
Author(s):  
J.H. Meyer ◽  
J. Schmidt ◽  
F. Eppinger ◽  
B. Flügel ◽  
K.U. Löffler ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Lens Capsule ◽  
Human Lens ◽  
Lens Epithelial Cells ◽  
Human Lens Epithelial Cells ◽  
Anterior Lens Capsule
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