RT Journal Article SR Electronic T1 α1-Antitrypsin deficiency • 4: Molecular pathophysiology JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 529 OP 535 DO 10.1136/thx.2003.006528 VO 59 IS 6 A1 D A Lomas A1 H Parfrey YR 2004 UL http://thorax.bmj.com/content/59/6/529.abstract AB The molecular basis of α1-antitrypsin deficiency is reviewed and is shown to be due to the accumulation of mutant protein as ordered polymers within the endoplasmic reticulum of hepatocytes. The current goals are to determine the cellular response to polymeric α1-antitrypsin and to develop therapeutic strategies to block polymerisation in vivo.