A new diagnostic technique is described, in which 0.7 mm thick slices of skin are freshly cut, thoroughly washed, slightly fixed and directly incubated in peroxidase-labelled antibodies. This easy technique allows routine immuno-electron microscopic diagnosis of subepidermal auto-immune bullous diseases, with excellent morphological results.
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http://dx.doi.org/10.1111/j.1365-2133.1984.tb07305.x | DOI Listing |
Front Cell Dev Biol
March 2022
Microscopy Laboratory, Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, United States.
Previous studies revealed an abundance of functional Connexin43 (Cx43) hemichannels consequent to loss of plakophilin-2 (PKP2) expression in adult murine hearts. The increased Cx43-mediated membrane permeability is likely responsible for excess entry of calcium into the cells, leading to an arrhythmogenic/cardiomyopathic phenotype. The latter has translational implications to the molecular mechanisms of inheritable arrhythmogenic right ventricular cardiomyopathy (ARVC).
View Article and Find Full Text PDFAutophagy
July 2019
a Synaptic Function Section, National Institute of Neurological Disorders and Stroke , National Institutes of Health, Bethesda , MD , USA.
Unlabelled: Lysosomes serve as the degradation hubs for macroautophagic/autophagic and endocytic components, thus maintaining cellular homeostasis essential for neuronal survival and function. LAMP1 (lysosomal associated membrane protein 1) and LAMP2 are distributed among autophagic and endolysosomal organelles. Despite widespread distribution, LAMP1 is routinely used as a lysosome marker and LAMP1-positive organelles are often referred to as lysosomal compartments.
View Article and Find Full Text PDFPLoS One
February 2018
Institute of Ophthalmology, University College London, London, United Kingdom.
Correlative light-electron microscopy (CLEM) is a powerful technique allowing localisation of specific macromolecules within fluorescence microscopy (FM) images to be mapped onto corresponding high-resolution electron microscopy (EM) images. Existing methods are applicable to limited sample types and are technically challenging. Here we describe novel methods to perform CLEM and immuno-electron microscopy (iEM) on cryostat sections utilising the popular FM embedding solution, optimal cutting temperature (OCT) compound.
View Article and Find Full Text PDFHepatology
May 2010
Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Unlabelled: Caveolae are a subtype of cholesterol-enriched lipid microdomains/rafts that are routinely detected as vesicles pinching off from the plasma membrane. Caveolin-1 is an essential component of caveolae. Hepatic caveolin-1 plays an important role in liver regeneration and lipid metabolism.
View Article and Find Full Text PDFJ Cell Mol Med
October 2008
Department of Anatomy, Histology and Forensic Medicine, University of Florence, Florence, Italy.
CD117 (or c-kit) is expressed by the interstitial cells of Cajal (ICC), which are located within the gastrointestinal (GI) muscle coat and directly involved in its motility. CD34 is expressed by several cell types some of which have features and location resembling the ICC; however, a sure identification of these cells is still lacking. In order to establish whether the CD34-positive cells of the human GI tract are to be considered as ICC subpopulation or a novel independent cell type, and to hypothesize their nature and role, we verified CD34 and CD117 receptor expression under light and fluorescence microscope and performed a routine and a CD34-immuno-electron microscopy.
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