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Cellular Crosstalk Linked To Lung Disease

Date:
September 1, 2009
Source:
Journal of Clinical Investigation
Summary:
Crosstalk between cells lining the lung and airway smooth muscle cells is important in lung development. However, it has also been shown to contribute to several lung diseases, including asthma and pulmonary hypertension. Researchers have now molecularly characterized one crosstalk pathway in mice, providing potential new therapeutic targets for treating individuals with lung diseases caused by affects on airway smooth muscle cells, such as asthma and pulmonary hypertension.

Crosstalk between cells lining the lung (epithelial cells) and airway smooth muscle cells is important in lung development. However, it has also been shown to contribute to several lung diseases, including asthma and pulmonary hypertension.

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A team of researchers, at the University of Pennsylvania, Philadelphia, has now molecularly characterized one crosstalk pathway in mice, providing potential new therapeutic targets for treating individuals with lung diseases, such as asthma and pulmonary hypertension, which are caused, at least in part, by affects on airway smooth muscle cells.

The team, led by Edward Morrisey and Ethan David Cohen, used numerous in vivo gain- and loss-of-function approaches to demonstrate that a Wnt7b/Tnc/Pdgfr crosstalk pathway was important for mouse smooth muscle development, with Wnt7b being exclusively expressed by lung epithelial cells and Pdgfr being expressed by the developing airway smooth muscle cells.

Importantly, expression of the components of this crosstalk pathway was upregulated in a mouse model of asthma and humans with pulmonary hypertension, thereby identifying the Wnt/Tnc/Pdgfr crosstalk pathway as important in both lung development and adult lung disease.


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Journal Reference:

  1. Cohen et al. Wnt signaling regulates smooth muscle precursor development in the mouse lung via a tenascin C/PDGFR pathway. Journal of Clinical Investigation, 2009; DOI: 10.1172/JCI38079

Cite This Page:

Journal of Clinical Investigation. "Cellular Crosstalk Linked To Lung Disease." ScienceDaily. ScienceDaily, 1 September 2009. <www.sciencedaily.com/releases/2009/08/090817184449.htm>.
Journal of Clinical Investigation. (2009, September 1). Cellular Crosstalk Linked To Lung Disease. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2009/08/090817184449.htm
Journal of Clinical Investigation. "Cellular Crosstalk Linked To Lung Disease." ScienceDaily. www.sciencedaily.com/releases/2009/08/090817184449.htm (accessed October 31, 2014).

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