|
|
||||||||
1 Department of Molecular Genetics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60607-7170; 2 Center for Biologic Imaging, University of Pittsburgh, Pittsburgh, Pennsylvania 15261; and 3 Division of Pulmonary Biology, Children's Hospital Medical Center, Cincinnati, Ohio 45229-3039
The Forkhead
Box (Fox) family of transcription factors plays important roles in
regulating expression of genes involved in cellular proliferation and
differentiation. In a previous study, we showed that newborn
foxf1(+/
) mice with diminished Foxf1 levels exhibited
abnormal formation of pulmonary alveoli and capillaries and died
postnatally. Interestingly, surviving newborn foxf1(+/
) mice exhibited increased pulmonary Foxf1 levels and normal adult lung
morphology, suggesting that wild-type Foxf1 levels are required for
lung development and function. The present study was conducted to
determine whether adult foxf1(+/
) mice were able to
undergo lung repair similar to that observed in wild-type mice. We
demonstrated that adult foxf1(+/
) mice died from severe
lung hemorrhage after butylated hydroxytoluene (BHT) lung injury and
that this phenotype was associated with a 10-fold decrease in pulmonary
Foxf1 expression and increased alveolar endothelial cell
apoptosis that disrupted capillary integrity. Furthermore,
BHT-induced lung hemorrhage of adult foxf1(+/
) mice was
associated with a drastic reduction in expression of the Flk-1, bone
morphogenetic protein-4, surfactant protein B, platelet endothelial
cell adhesion molecule, and vascular endothelial cadherin genes,
whereas the expression of these genes was either transiently diminished
or increased in wild-type lungs after BHT injury. Because these
proteins are critical for lung morphogenesis and endothelial
homeostasis, their decreased mRNA levels are likely contributing to
BHT-induced lung hemorrhage in foxf1(+/
) mice.
Collectively, our data suggest that sustained expression of Foxf1 is
essential for normal lung repair and endothelial cell survival in
response to pulmonary cell injury.
winged helix deoxyribonucleic acid-binding domain; Flk-1; bone morphogenetic protein-4; surfactant protein B; platelet endothelial cell adhesion molecule-1; vascular endothelial cadherin; butylated hydroxytoluene lung injury; endothelial cells
This article has been cited by other articles:
![]() |
T. V. Kalin, L. Meliton, A. Y. Meliton, X. Zhu, J. A. Whitsett, and V. V. Kalinichenko Pulmonary Mastocytosis and Enhanced Lung Inflammation in Mice Heterozygous Null for the Foxf1 Gene Am. J. Respir. Cell Mol. Biol., October 1, 2008; 39(4): 390 - 399. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. N. Papanicolaou, Y. Izumiya, and K. Walsh Forkhead Transcription Factors and Cardiovascular Biology Circ. Res., January 4, 2008; 102(1): 16 - 31. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Malin, I.-M. Kim, E. Boetticher, T. V. Kalin, S. Ramakrishna, L. Meliton, V. Ustiyan, X. Zhu, and V. V. Kalinichenko Forkhead Box F1 Is Essential for Migration of Mesenchymal Cells and Directly Induces Integrin-Beta3 Expression Mol. Cell. Biol., April 1, 2007; 27(7): 2486 - 2498. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Maeda, V. Dave, and J. A. Whitsett Transcriptional Control of Lung Morphogenesis Physiol Rev, January 1, 2007; 87(1): 219 - 244. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Spira, J. Beane, V. Pinto-Plata, A. Kadar, G. Liu, V. Shah, B. Celli, and J. S. Brody Gene Expression Profiling of Human Lung Tissue from Smokers with Severe Emphysema Am. J. Respir. Cell Mol. Biol., December 1, 2004; 31(6): 601 - 610. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. H. Lim, A. Aggarwal, T. Agasthian, P.-S. Wong, C. Tan, E. Sim, L. Tan, P.-S. Goh, S.-C. Wang, K.-L. Khoo, et al. Feasibility of Using Low-Volume Tissue Samples for Gene Expression Profiling of Advanced Non-Small Cell Lung Cancers Clin. Cancer Res., December 1, 2003; 9(16): 5980 - 5987. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. J. Favre, M. Mancuso, K. Maas, J. W. McLean, P. Baluk, and D. M. McDonald Expression of genes involved in vascular development and angiogenesis in endothelial cells of adult lung Am J Physiol Heart Circ Physiol, November 1, 2003; 285(5): H1917 - H1938. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. V. Kalinichenko, G. A. Gusarova, Y. Tan, I-C. Wang, M. L. Major, X. Wang, H. M. Yoder, and R. H. Costal Ubiquitous Expression of the Forkhead Box M1B Transgene Accelerates Proliferation of Distinct Pulmonary Cell Types following Lung Injury J. Biol. Chem., September 26, 2003; 278(39): 37888 - 37894. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |