In Vitro Gene Expression Study Demonstrates Small Mobile Stem Cells Stimulate Progenitor Lung Cells News provided by Share this article Share this article SAN DIEGO, March 2, 2021 /PRNewswire/ -- SMSbiotech, Inc. announced today that a recent study on the interaction between Alveolar Type 2 (AT2) cells (lung progenitor cells) and Small Mobile Stem (SMS) cells demonstrates critical changes to the gene expression of the AT2 cells responsible for regenerating lung cells. Lung degeneration and destruction is one of the major causes of morbidity and mortality worldwide. Chronic obstructive pulmon...