• 24001699677762120085020297257640876566PublicAssets/3738
    Transmission electron microscopy of coronary artery wall with elastin-rich ECM pseudocolored in light brown
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    Transmission electron microscopy of coronary artery wall with elastin-rich ECM pseudocolored in light brown

    3738

    Elastin is a fibrous protein in the extracellular matrix (ECM). It is abundant in artery walls like the one shown here. As its name indicates, elastin confers elasticity. Elastin fibers are at least five times stretchier than rubber bands of the same size. Tissues that expand, such as blood vessels and lungs, need to be both strong and elastic, so they contain both collagen (another ECM protein) and elastin. In this photo, the elastin-rich ECM is colored grayish brown and is most visible at the bottom of the photo. The curved red structures near the top of the image are red blood cells.
    Public Note
    Internal NoteResearchers supplied image & gave permission for public use: From: Tom Deerinck [mailto:deerinck@ncmir.ucsd.edu] Sent: Friday, August 14, 2015 4:52 PM To: Carlson, Emily (NIH/NIGMS) [E] Subject: Re: ECM images from NCMIR? Hi Emily, I have attached 8 assorted images showing ECM. Use one or all. The first 6 are: ?Courtesy Thomas Deerinck and Mark Ellisman, NCMIR The last 2 are ?Courtesy Varda Lev-Ram Ellisman and Mark Ellisman, NCMIR 1: Collagen fibers (main component of ECM). SEM 2: Myelinating axons with ECM between the myelinating cells. TEM. 3: Bundle of peripheral myelinated nerve axonal ECM. SEM. 4: Coronary artery wall with elastin rich ECM pseudocolored light brown. TEM 5: Soleus muscle ECM on the muscle surface. Blood vessel is pseudocolored red. SEM 6: Cross-section of node of Ranvier with surrounding ECM pseudocolored cyan. TEM 7: Cortex neuronal ECM labeled with Wisteria Floribunda Agglutinin (WFA)-fluorescein. The labeling shows perineuronal nets (PNN) which are a specialized form of ECM in the brain. Imaged by confocal microscopy. 8: Cortex neuronal ECM labeled with Wisteria Floribunda Agglutinin (WFA)-fluorescein. The labeling shows perineuronal nets (PNN) which are a specialized form of ECM in the brain. Imaged by confocal microscopy. Best, Tom D. PS I would love to see the finished product!
    KeywordsEM, TEM
    SourceTom Deerinck, National Center for Microscopy and Imaging Research (NCMIR)
    Date2016-01-29 00:00:00
    Credit LineMark Ellisman and Tom Deerinck, National Center for Microscopy and Imaging Research
    InvestigatorMark Ellisman, NCMIR
    Record TypePhotograph
    Topic Area(s);#Cells;#Tools and Techniques;#
    Previous Uses
    StatusActive

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