Micronuclei (IMAGE) University of Pennsylvania School of Medicine Caption Immunofluorescent staining shows co-staining of lamin B2 in cGAS positive micronuclei. Scale bar, 10 μ m. Credit The lab of Roger Greenberg, MD, PhD, Perelman School of Medicine 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.