Photostatin Exposure Comparison (image) Cell Press Share Print E-Mail Caption This photo shows incubated human cancer cell lines in cell culture, treated with our photostatin. Note the contrast in cell fate for those kept in the dark (left) versus those exposed to brief pulses of blue light (right). Credit Malgorzata Borowiak, LMU Munich Usage Restrictions Credit Required. 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.