The Potential Role of 8-Oxoguanine DNA Glycosylase-Driven DNA Base Excision Repair in Exercise-Induced Asthma

Karry Anne K Belanger, Bill Ameredes, Istvan Boldogh, Leopoldo Aguilera-Aguirre

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Asthma is characterized by reversible airway narrowing, shortness of breath, wheezing, coughing, and other symptoms driven by chronic inflammatory processes, commonly triggered by allergens. In 90% of asthmatics, most of these symptoms can also be triggered by intense physical activities and severely exacerbated by environmental factors. This condition is known as exercise-induced asthma (EIA). Current theories explaining EIA pathogenesis involve osmotic and/or thermal alterations in the airways caused by changes in respiratory airflow during exercise. These changes, along with existing airway inflammatory conditions, are associated with increased cellular levels of reactive oxygen species (ROS) affecting important biomolecules including DNA, although the underlying molecular mechanisms have not been completely elucidated. One of the most abundant oxidative DNA lesions is 8-oxoguanine (8-oxoG), which is repaired by 8-oxoguanine DNA glycosylase 1 (OGG1) during the base excision repair (BER) pathway. Whole-genome expression analyses suggest a cellular response to OGG1-BER, involving genes that may have a role in the pathophysiology of EIA leading to mast cell degranulation, airway hyperresponsiveness, and bronchoconstriction. Accordingly, this review discusses a potential new hypothesis in which OGG1-BER-induced gene expression is associated with EIA symptoms.

Original languageEnglish (US)
Article number3762561
JournalMediators of Inflammation
Volume2016
DOIs
StatePublished - 2016

Fingerprint

DNA Glycosylases
Exercise-Induced Asthma
DNA Repair
DNA
Cell Degranulation
Pulmonary Ventilation
Bronchoconstriction
Respiratory Sounds
Mast Cells
Dyspnea
Allergens
Reactive Oxygen Species
Asthma
Hot Temperature
Genome
Gene Expression
8-hydroxyguanine
Genes

ASJC Scopus subject areas

  • Immunology
  • Cell Biology

Cite this

The Potential Role of 8-Oxoguanine DNA Glycosylase-Driven DNA Base Excision Repair in Exercise-Induced Asthma. / Belanger, Karry Anne K; Ameredes, Bill; Boldogh, Istvan; Aguilera-Aguirre, Leopoldo.

In: Mediators of Inflammation, Vol. 2016, 3762561, 2016.

Research output: Contribution to journalReview article

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