UPMC Cellular Lamin Animation (VIDEO) University of Pittsburgh This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Using super-sensitive microscopic imaging, a team of scientists made a fundamental biological discovery that explains the structure of the nuclear envelope and gives tantalizing clues as to how cells squish through narrow openings without springing a leak. Credit UPMC Usage Restrictions none License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.