Contact-dependent, polarized acidification response during neutrophil–epithelial interactions

Cartwright, Ian M.; Dowdell, Alexander S.; Hanson, Camila; Kostelecky, Rachael; Welch, Nichole; Steiner, Claudia; Colgan, Sean P.

doi:10.1002/jlb.3ma0422-742r

Cited by 1 publication

(1 citation statement)

References 64 publications

(143 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, it has been observed that PMN-epithelial interaction results marked inflammatory acidification that was dependent on PMN-epithelial contact, but independent of PMN transepithelial migration. The source of the acidification was identified to be the epithelial cells and is a result of increased lactic acid production and increased ROS generation during PMN-epithelial cell interactions ( 20 , 73 ).…”

Section: Tissue Acidification and Ph Regulationmentioning

confidence: 99%

The hypoxic tissue microenvironment as a driver of mucosal inflammatory resolution

Cartwright

Colgan

2023

Front. Immunol.

View full text Add to dashboard Cite

On the backdrop of all acute inflammatory processes lies the activation of the resolution response. Recent years have witnessed an emerging interest in defining molecular factors that influence the resolution of inflammation. A keystone feature of the mucosal inflammatory microenvironment is hypoxia. The gastrointestinal tract, particularly the colon, exists in a state of physiological hypoxia and during active inflammation, this hypoxic state is enhanced as a result of infiltrating leukocyte oxygen consumption and the activation of oxygen consuming enzymes. Most evidence suggests that mucosal hypoxia promotes the active resolution of inflammation through a variety of mechanisms, including extracellular acidification, purine biosynthesis/salvage, the generation of specialized pro-resolving lipid mediators (ie. resolvins) and altered chemokine/cytokine expression. It is now appreciated that infiltrating innate immune cells (neutrophils, eosinophils, macrophages) have an important role in molding the tissue microenvironment to program an active resolution response. Structural or functional dysregulation of this inflammatory microenvironment can result in the loss of tissue homeostasis and ultimately progression toward chronicity. In this review, we will discuss how inflammatory hypoxia drives mucosal inflammatory resolution and its impact on other microenvironmental factors that influence resolution.

show abstract

Section: Tissue Acidification and Ph Regulationmentioning

confidence: 99%

The hypoxic tissue microenvironment as a driver of mucosal inflammatory resolution

Cartwright

Colgan

2023

Front. Immunol.

View full text Add to dashboard Cite

show abstract

Contact-dependent, polarized acidification response during neutrophil–epithelial interactions

Abstract: Inflammatory acidosis represents a polarized neutrophil-epithelial-dependent response independent of myeloperoxidase and ion efflux.

Cited by 1 publication

References 64 publications

The hypoxic tissue microenvironment as a driver of mucosal inflammatory resolution

The hypoxic tissue microenvironment as a driver of mucosal inflammatory resolution

Contact Info

Product

Resources

About