The Role of Hedgehog Signaling in Adult Lung Regeneration and Maintenance
Chaoqun Wang, Monica Cassandras, Tien Peng
Department of Medicine, Cardiovascular Research Institute
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Keywords

Hedgehog signaling, asymmetric activation, adult lung regeneration, alveolar niche, emphysema, lung fibrosis

How to Cite

Tien Peng, C. W. (2019). The Role of Hedgehog Signaling in Adult Lung Regeneration and Maintenance. Actual Problems of Applied Sciences Journal World, (6(16), 51-61. Retrieved from http://scopuseu.com/scopus/index.php/appsciences/article/view/754
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Abstract

As a secreted morphogen, Sonic Hedgehog (SHH) determines differential cell fates, behaviors, and functions by forming a gradient of Hedgehog (Hh) activation along an axis of Hh-receptive cells during development. Despite clearly delineated roles for Hh during organ morphogenesis, whether Hh continues to regulate cell fate and behavior in the same fashion in adult organs is less understood. Adult organs, particularly barrier organs interfacing with the ambient environment, are exposed to insults that require renewal of cellular populations to maintain structural integrity. Understanding key aspects of Hh’s ability to generate an organ could translate into conceptual understanding of Hh’s ability to maintain organ homeostasis and stimulate regeneration. In this review, we will summarize the current knowledge about Hh signaling in regulating adult lung regeneration and maintenance, and discuss how alteration of Hh signaling contributes to adult lung diseases.

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