scholarly journals Monitoring the dynamics of Src activity in response to anti-invasive dasatinib treatment at a subcellular level using dual intravital imaging

2014 ◽  
Vol 8 (5) ◽  
pp. 478-486 ◽  
Author(s):  
Max Nobis ◽  
Ewan J McGhee ◽  
David Herrmann ◽  
Astrid Magenau ◽  
Jennifer P Morton ◽  
...  
Author(s):  
Antonia M. Milroy

In recent years many new techniques and instruments for 3-Dimensional visualization of electron microscopic images have become available. Higher accelerating voltage through thicker sections, photographed at a tilt for stereo viewing, or the use of confocal microscopy, help to analyze biological material without the necessity of serial sectioning. However, when determining the presence of neurotransmitter receptors or biochemical substances present within the nervous system, the need for good serial sectioning (Fig. 1+2) remains. The advent of computer assisted reconstruction and the possibility of feeding information from the specimen viewing chamber directly into a computer via a camera mounted on the electron microscope column, facilitates serial analysis. Detailed information observed at the subcellular level is more precise and extensive and the complexities of interactions within the nervous system can be further elucidated.We emphasize that serial ultra thin sectioning can be performed routinely and consistently in multiple user electron microscopy laboratories. Initial tissue fixation and embedding must be of high quality.


1971 ◽  
Vol 68 (1_Suppl) ◽  
pp. S205-S222 ◽  
Author(s):  
Walter E. Stumpf

ABSTRACT The paper describes four autoradiographic techniques which can be recommended, not without restrictions, for the study of the cellular and subcellular hormone or drug distribution in tissues. In all of the techniques desiccated slides are used which are precoated with photographic emulsion. The techniques are (I) Dry-mounting of freeze-dried sections on emulsion precoated slides; (II) Thaw-mounting of frozen sections on emulsion precoated slides; (III) Smear-mounting on emulsion precoated slides; and (IV) Touch-mounting on emulsion precoated slides. The techniques are designed to avoid or minimize translocation of the labelled molecules during preparation and during the application to photographic emulsion. Cited examples of application of these techniques demonstrate their utility in hormone research.


1969 ◽  
Vol 62 (3) ◽  
pp. 468-476 ◽  
Author(s):  
Jeanine Guidollet ◽  
Pierre Louisot

ABSTRACT Corticosteroid-binding activity (transcortin) was investigated at the subcellular level of the rat liver cell: it was located exclusively in the cell sap, and not on the ribosomes or membranes. Oestrogens were found to increase the biological activity of this glycoprotein (corticosterone binding) in the plasma and in the cell sap. The isotopic activity of the glucidic fragments of glycoprotein (after incorporation of 14C-D-glucosamine), however, remained constant or decreased in the specific subcellular sites at which they were incorporated (membranes and cell sap). This absence of correlation between these two results is not in agreement with an induction of transcortin synthesis by oestrogens, but in favour of an activation of normally masked molecular sites.


Nephron ◽  
2020 ◽  
Vol 144 (12) ◽  
pp. 650-654
Author(s):  
Luca Bordoni ◽  
Donato Sardella ◽  
Ina Maria Schiessl

Acute kidney injury (AKI) is associated with an increased risk of CKD. Injury-induced multifaceted renal cell-to-cell crosstalk can either lead to successful self-repair or chronic fibrosis and inflammation. In this mini-review, we will discuss critical renal cell types acting as victims or executioners in AKI pathology and introduce intravital imaging as a powerful technique to further dissect these cell-to-cell interactions.


Immunity ◽  
2011 ◽  
Vol 34 (5) ◽  
pp. 807-819 ◽  
Author(s):  
Jackson G. Egen ◽  
Antonio Gigliotti Rothfuchs ◽  
Carl G. Feng ◽  
Marcus A. Horwitz ◽  
Alan Sher ◽  
...  

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