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Why Skin Is Strong: Cells Stick Like Velcro
wildcat
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9
12-6-2007 9:25 AM
298 views
tags:
skin
,
cells
,
velcro
,
strenght
,
biology
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/a35c420d-280c-42ca-8f4d-dc74477eb4ed/88BA754A-633B-4101-9208-B17230CA3471/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.livescience.com/health/071205-close-look.html" href="http://www.livescience.com/health/071205-close-look.html" style="font-size: 11px;">www.livescience.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/health/071205-close-look.html"><P> Scientists have gotten their best look ever at interactions inside human skin cells, finding a Velcro-like setup that links them and makes skin strong while also supple. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/health/071205-close-look.html"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/www.livescience.com/img/61F8655D-AC43-497E-AF00-A034FD515CFC" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/health/071205-close-look.html"><P> The <A href="http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?pic=071205-skin-cells-02.jpg%20&cap=This+3-D+reconstruction+of+a+human+skin+cell+was+produced+by+electron+tomography+and+shows+organelles+in+different+colours:+regions+of+cell-cell+contact+%28sandy+brown%29%2C+nucleus+and+nuclear+envelope+%28blue%29+with+pores+%28red%29%2C+microtubules+%28green%29%2C+mitochondria+%28purple%29%2C+endoplasmic+reticulum+%28steel+blue%29.+Credit:+Achilleas+Frangakis+EMBL&title=Why+Skin+is+Strong:+Cells+Stick+Like+Velcro&title=Why%20Skin%20is%20Strong:%20Cells%20Stick%20Like%20Velcro">cell-interior images</A>, made with a new a technique called cryo-electron tomography, show the proteins responsible for cell-cell contacts for the first time. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/health/071205-close-look.html"><P> "This is a real breakthrough in two respects," said Achilleas Frangakis of the European Molecular Biology Laboratory. "Never before has it been possible to <A href="http://www.livescience.com/health/070813_3d_cell.html">look in three dimensions at a tissue</A> so close to its native state at such a high resolution. We can now see details at the scale of a few millionths of a millimeter. In this way we have gained a new view on the interactions of molecules that underlie cell adhesion in tissues—a mechanism that has been disputed over decades." </P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/88BA754A-633B-4101-9208-B17230CA3471/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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