[HTML][HTML] Mitochondrial dysfunction in inflammatory bowel disease

EA Novak, KP Mollen - Frontiers in cell and developmental biology, 2015 - frontiersin.org
EA Novak, KP Mollen
Frontiers in cell and developmental biology, 2015frontiersin.org
Inflammatory Bowel Disease (IBD) represents a group of idiopathic disorders characterized
by chronic or recurring inflammation of the gastrointestinal tract. While the exact etiology of
disease is unknown, IBD is recognized to be a complex, multifactorial disease that results
from an intricate interplay of genetic predisposition, an altered immune response, changes
in the intestinal microbiota, and environmental factors. Together, these contribute to a
destruction of the intestinal epithelial barrier, increased gut permeability, and an influx of …
Inflammatory Bowel Disease (IBD) represents a group of idiopathic disorders characterized by chronic or recurring inflammation of the gastrointestinal tract. While the exact etiology of disease is unknown, IBD is recognized to be a complex, multifactorial disease that results from an intricate interplay of genetic predisposition, an altered immune response, changes in the intestinal microbiota, and environmental factors. Together, these contribute to a destruction of the intestinal epithelial barrier, increased gut permeability, and an influx of immune cells. Given that most cellular functions as well as maintenance of the epithelial barrier is energy-dependent, it is logical to assume that mitochondrial dysfunction may play a key role in both the onset and recurrence of disease. Indeed several studies have demonstrated evidence of mitochondrial stress and alterations in mitochondrial function within the intestinal epithelium of patients with IBD and mice undergoing experimental colitis. Although the hallmarks of mitochondrial dysfunction, including oxidative stress and impaired ATP production are known to be evident in the intestines of patients with IBD, it is as yet unclear whether these processes occur as a cause of consequence of disease. We provide a current review of mitochondrial function in the setting of intestinal inflammation during IBD.
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