3 (image) NASA/Johnson Space Center Share Print E-Mail Caption Human lung scaffold pieces can be made for use as a scaffold to support growth of bioengineered lung for research studies like Lung Tissue. The cells are grown in a specialized framework that supplies them with critical growth factors so that scientists can observe how gravity affects growth and specialization as cells become new lung tissue. Credit Joan Nichols, UTMB Usage Restrictions None 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.