IMR Press / FBL / Volume 8 / Issue 4 / DOI: 10.2741/1062

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article
Regulation of lung surfactant protein gene expression
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1 Department of Molecular Biology, University of Texas Health Center at Tyler, 11937, US Highway 271, Tyler, TX 75708-3154, USA

Academic Editor: Lin Liu

Front. Biosci. (Landmark Ed) 2003, 8(4), 751–764; https://doi.org/10.2741/1062
Published: 1 May 2003
(This article belongs to the Special Issue Functions of alveolar epithelial cells)
Abstract

Surfactant, a complex mixture of lipids and proteins, produced by the alveolar type II cells of the lung epithelium maintains alveolar integrity and plays important roles in the control of host defense and inflammation in the lung. Surfactant protein (SP) A, B, C and D genes are expressed in a cell-type restricted manner by the Clara and/or alveolar type II cells of the lung. Surfactant protein genes are independently regulated during fetal lung development and by hormones, cytokines and other agents. Transcriptional and/or posttranscriptional (mRNA stability) mechanisms control multifactorial regulation of surfactant protein gene expression. In vitro cell culture and transgenic animal studies have shown that relatively short promoter sequences control cell/tissue-specific expression and developmental regulation of surfactant protein genes. Surfactant protein promoter function is dependent on the combinatorial actions of multiple transcription factors, and thyroid transcription factor 1 (TTF-1/Nkx2.1) is a common positive regulator of surfactant protein promoter activity.

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