Changes in Nucleolar and Ribosomal RNA of the Frog Kidney after Malignant Transformation by the Lucke Tumor Herpesvirus

Pathobiology ◽  
1984 ◽  
Vol 52 (3) ◽  
pp. 196-206 ◽  
Author(s):  
Kenyon S. Tweedell ◽  
John H. Malin
Keyword(s):  
Malignant Transformation ◽  
Ribosomal Rna ◽  
Frog Kidney

Visualisation of E. coli ribosomal RNA in situ by electron spectroscopic imaging and image averaging

1992 ◽  
Vol 50 (1) ◽  
pp. 466-467
Author(s):  
Daniel Beniac ◽  
George Harauz
Keyword(s):  
Ribosomal Rna ◽  
Three Dimensional ◽  
Spectroscopic Imaging ◽  
Electron Spectroscopic Imaging ◽  
E Coli ◽  
Microscopical Technique ◽  
Quantitative Image ◽  
Dimensional Reconstruction ◽  
Image Averaging ◽  
Protein Components

The structures of E. coli ribosomes have been extensively probed by electron microscopy of negatively stained and frozen hydrated preparations. Coupled with quantitative image analysis and three dimensional reconstruction, such approaches are worthwhile in defining size, shape, and quaternary organisation. The important question of how the nucleic acid and protein components are arranged with respect to each other remains difficult to answer, however. A microscopical technique that has been proposed to answer this query is electron spectroscopic imaging (ESI), in which scattered electrons with energy losses characteristic of inner shell ionisations are used to form specific elemental maps. Here, we report the use of image sorting and averaging techniques to determine the extent to which a phosphorus map of isolated ribosomal subunits can define the ribosomal RNA (rRNA) distribution within them.

Application of Transmission Electron Microscope and Scanning Electron Microscope in experimental tumor studies

1990 ◽  
Vol 48 (3) ◽  
pp. 306-307
Author(s):  
Gao Fengming
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Malignant Transformation ◽  
Transmission Electron Microscope ◽  
Experimental Tumor ◽  
Transmission Electron ◽  
Embryo Cells ◽  
Tumor Studies ◽  
Scanning Electron

Transmission electron microscope(TEM) and scanning electron microscope(SEM) were widely used in experimental tumor studies. They are useful for evaluation of cellular transformation in vitro, classification of histological types of tumors and treating effect of tumors. We have obtained some results as follows:1. Studies on the malignant transformation of mammalian cells in vitro. Syrian golden hamster embryo cells(SGHEC) were transformed in vitro by ThO2 and/or ore dust. In a few days after dust added into medium, some dust crystals were phagocytized. Two weeks later, malignant transformation took place. These cells were of different size, nuclear pleomorphism, numerous ribosomes, increasing of microvilli on cell surface with various length and thickness, and blebs and ruffles(Figs. 1,2). Myelomonocytic leukemic transformation of mouse embryo cells(MEC) was induced in vitro by 3H-TdR. Transformed cells were become round from fusiform. The number of mitochondria and endoplasmic reticulum was reduced, ribosomes and nucleoli increased, shape of nuclei irregular, microvilli increased, and blebs and ruffles appeared(Fig. 3).

378: 14-3-3 Expression Patterns in the Human Kidney: From Fetal Development to the Adult State to Malignant Transformation

2005 ◽  
Vol 173 (4S) ◽  
pp. 103-103
Author(s):  
Adam G. Baseman ◽  
Andrew J. Kirsch ◽  
Fray F. Marshall ◽  
Haiyen E. Zhau ◽  
Leland W.K. Chung ◽  
...  
Keyword(s):  
Malignant Transformation ◽  
Fetal Development ◽  
Expression Patterns ◽  
Human Kidney

Can 18FDG-PET detect malignant transformation of neurofibromas in patients with neurofibromatosis type I?

2006 ◽  
Vol 37 (06) ◽  
Author(s):  
J Neinert ◽  
E Fastnacht ◽  
R Larisch ◽  
E Legius ◽  
R Engelskirchen ◽  
...  
Keyword(s):  
Malignant Transformation ◽  
Neurofibromatosis Type ◽  
Type I ◽  
Neurofibromatosis Type I ◽  
18Fdg Pet

Malignant Transformation of a Vestibular Schwannoma Remnant 19 Years after Fractionated Radiation Therapy

Skull Base ◽  
2007 ◽  
Vol 17 (S 1) ◽  
Author(s):  
Vincent Darrouzet ◽  
Valérie Franco-Vidal ◽  
Clotilde Perret ◽  
Sandrine Eimer ◽  
Jean-Philippe Maire
Keyword(s):  
Radiation Therapy ◽  
Malignant Transformation ◽  
Vestibular Schwannoma ◽  
Fractionated Radiation Therapy ◽  
Fractionated Radiation
Sign in / Sign up

Export Citation Format

Share Document