Airway hyperresponsiveness induced by cationic proteins in vivo: site of action.

@article{Homma2005AirwayHI,
  title={Airway hyperresponsiveness induced by cationic proteins in vivo: site of action.},
  author={T Homma and Jason H. T. Bates and Charles G Irvin},
  journal={American journal of physiology. Lung cellular and molecular physiology},
  year={2005},
  volume={289 3},
  pages={
          L413-8
        }
}
  • T. Homma, J. Bates, C. Irvin
  • Published 1 September 2005
  • Biology
  • American journal of physiology. Lung cellular and molecular physiology
Major basic protein and other native cationic proteins increase airway hyperresponsiveness when administered to the luminal surface of the airways in vitro. To determine whether the same applies in vivo, we assessed airway responsiveness in rats challenged with both aerosolized and intravenously infused methacholine. We partitioned total lung resistance into its airway and tissue components using the alveolar capsule technique. Neither poly-l-lysine nor major basic protein altered baseline… 

Figures and Tables from this paper

Exaggerated airway narrowing in mice treated with intratracheal cationic protein.
TLDR
It is concluded that the methacholine responsiveness of PLL-treated mice is fundamentally different in nature to the hyperresponsiveness that was found previously in mice with allergically inflamed lungs.
The synergistic interactions of allergic lung inflammation and intratracheal cationic protein.
TLDR
The results suggest that mechanistic synergy between airway wall thickening and exaggerated smooth muscle shortening produces a more germane mouse model of asthma that may have particular relevance to the pathophysiology of the acute severe asthma exacerbation.
Sensitization of isolated rat vagal pulmonary sensory neurons by eosinophil-derived cationic proteins.
TLDR
A direct, charge-dependent, and long-lasting sensitizing effect of cationic proteins on pulmonary sensory neurons is demonstrated, which may contribute to the airway hyperresponsiveness associated with airway infiltration of eosinophils under pathophysiological conditions.
Cholinergic Hyperresponsiveness of Peripheral Lung Parenchyma in Chronic Obstructive Pulmonary Disease
TLDR
The cholinergic responsiveness of parenchymal lung strips is increased in COPD patients and seems to be related to alveolar tissue eosinophilic and CD8 lymphocytic inflammation and to the degree of airway obstruction on the pulmonary function test.
Distribution of Major Basic Protein on Human Airway following In Vitro Eosinophil Incubation
TLDR
It is suggested that eosinophil-derived cationic proteins may alter airway hyperresponsiveness in vivo by an effect that is not limited to the bronchial epithelium.
l-Arginine deficiency causes airway hyperresponsiveness after the late asthmatic reaction
TLDR
In allergen-challenged guinea pigs, the AHR after the LAR is caused by arginase- and polycation-induced attenuation of l-arginine availability to iNOS, which may switch the enzyme to simultaneous production of superoxide and NO, and, consequently, peroxynitrite.
The effects of inhaled house dust mite on airway barrier function and sensitivity to inhaled methacholine in mice.
TLDR
It is found that PLL produced a leftward shift in the dose-response curve following nebulized but not intravenous methacholine challenge, indicating impairment in airway barrier function.
Acid aspiration-induced airways hyperresponsiveness in mice.
TLDR
It is concluded that acid aspiration triggers an acute AHR, driven principally by breakdown of epithelial barrier integrity within the airways.
Comparison of early and late responses to antigen of sensitized guinea pig parenchymal lung strips.
TLDR
The results show that the lung parenchyma is involved in the late response, and the constriction response in this phase is related to the eosinophilic inflammation.
...
1
2
3
4
...

References

SHOWING 1-10 OF 42 REFERENCES
Cationic proteins induce airway hyperresponsiveness dependent on charge interactions.
TLDR
Findings suggest that charge interactions in the airways are important not only in alterations in airway responsiveness induced by eosinophil-derived MBP, but also because they underlie alteredAirway responsiveness after treatment with other cationic proteins.
Cationic proteins increase the permeability of cultured rabbit tracheal epithelial cells: modification by heparin and extracellular calcium.
TLDR
Findings suggest that cationic proteins significantly alter the barrier properties of airway epithelium and that cATIONic charge is a crucial factor in this alteration.
Cationic protein-induced sensory nerve activation: role of substance P in airway hyperresponsiveness and plasma protein extravasation.
TLDR
It is demonstrated that cationic proteins can activate sensory C-fibers in the airways, an effect which is important in the subsequent development of airway hyperresponsiveness and plasma protein extravasation.
The effect of human eosinophil granule major basic protein on airway responsiveness in the rat in vivo. A comparison with polycations.
TLDR
Airway responsiveness to inhaled methacholine increased 1 h after the instillation of either MBP or polycation instillation, and Histologic examination of the airways failed to reveal airway epithelial shedding 1 h afterwards.
Sulfur-dioxide-induced bronchitis in dogs. Effects on airway responsiveness to inhaled and intravenously administered methacholine.
TLDR
The data suggest that the decreased airway responsiveness observed during persistent pulmonary inflammation in SO2-exposed dogs is not due to an altered state of airway contractile elements but likely reflects expression of an inhibitory influence of the mucoepithelial barrier.
Cationic proteins alter smooth muscle function by an epithelium-dependent mechanism.
TLDR
It is demonstrated that cationic proteins can modify epithelium-dependent responses in the airways, and a role is suggested for a charge-mediated interaction with the respiratory epithelia, resulting in airway smooth muscle dysfunction.
Human eosinophil-granule major basic protein and synthetic polycations induce airway hyperresponsiveness in vivo dependent on bradykinin generation.
TLDR
The results demonstrate that MBP and poly-L-lysine activate kallikrein and stimulate the generation of i-kinins in vivo, an effect that may be related to the cationic charge of these proteins.
Airway and tissue behavior during induced constriction in rats: intravenous vs. aerosol administration.
TLDR
Changes in tissue resistance and lung elastance after AR MCh were significantly greater than those after i.v. MCh, whereas the change in airway resistance was significantly less, and airway constriction was less prominent and decreased as airway size decreased.
Maximal methacholine-induced constriction in rabbit lung: interactions between airways and tissue?
TLDR
It is proposed that the negative correlation between tissue resistance and Raw at the level of the plateau is consistent with a model of a mechanically interdependent lung, where decreases in airway caliber are limited by the constriction of the surrounding parenchyma.
A comparison of the dose-response behavior of canine airways and parenchyma.
TLDR
The close correlation between changes in Raw and Vti and the similar sensitivities of the two support the use of indexes reflecting changes in airway caliber as an indicator of overall lung histamine responsiveness.
...
1
2
3
4
5
...