Defects in Cellular Antennae Can Cause a Common Heart Condition (2 of 3) (video) American Association for the Advancement of Science Share Print E-Mail Loading video... Caption Toomer et al. found that primary cilia (green), which serve as cellular antennae to receive signals from the extracellular space (grey) are required for cardiac valve development. Blue stained are cell nuclei. This material relates to a paper that appeared in the May 22, 2019, issue of Science Translational Medicine, published by AAAS. The paper, by K. Toomer at Medical University of South Carolina in Charleston, SC; and colleagues was titled, 'Primary cilia defects causing mitral valve prolapse.' Credit Katelynn Toomer, Johns Hopkins postdoctoral Fellow; Russell Norris, Associate Professor of Medicine, the Medical University of South Carolina Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. Share Print E-Mail 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.