|
|
||||||||
1 Medical Hospital, Research Center Borstel, 23845 Borstel; and 2 Krankenhaus Großhansdorf, 22927 Großhansdorf, Germany
The human alveolar type II epithelium-like
cell line A549 expresses nitric oxide synthase type 2 (NOS2), but not
NOS3, and produces nitric oxide (NO) upon appropriate stimulation.
However, relatively little is known regarding the NOS2 and NOS3
expression of type II human alveolar epithelial cells (AEC II) in
primary culture. We detected NOS3 mRNA in freshly isolated AEC II and after 24 h of culture. NOS3 mRNA levels were much higher in AEC II
cultured for 24 h with or without interferon-
,
interleukin-1
, and tumor necrosis factor-
, compared with freshly
isolated cells. Cytokine stimulation did not change the NOS3 mRNA
expression level in AEC II compared with unstimulated cells. NOS3
protein expression was verified by Western blot, and measuring
nitrate/nitrite revealed that the protein is active. In contrast,
neither NOS2 mRNA nor protein could be detected in freshly isolated,
unstimulated or cytokine-stimulated human AEC II in 24- or 72-h primary
cultures, whereas A549 cells expressed NOS2 message and protein upon
stimulation with proinflammatory cytokines. In situ hybridization
confirmed that AEC II express NOS3, but not NOS2 mRNA in
vivo. These data demonstrate that there are significant
differences between primary AEC II and A549 cells in NOS mRNA
expression pattern.
nitric oxide synthase; mRNA; RT-PCR; interferon-
; tumor necrosis
factor-
; interleukin-1
; type II human alveolar epithelial cells; A549 cell line
This article has been cited by other articles:
![]() |
H. Bayer, T. Muller, D. Myrtek, S. Sorichter, M. Ziegenhagen, J. Norgauer, G. Zissel, and M. Idzko Serotoninergic Receptors on Human Airway Epithelial Cells Am. J. Respir. Cell Mol. Biol., January 1, 2007; 36(1): 85 - 93. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Prasse, D. V. Pechkovsky, G. B. Toews, W. Jungraithmayr, F. Kollert, T. Goldmann, E. Vollmer, J. Muller-Quernheim, and G. Zissel A Vicious Circle of Alveolar Macrophages and Fibroblasts Perpetuates Pulmonary Fibrosis via CCL18 Am. J. Respir. Crit. Care Med., April 1, 2006; 173(7): 781 - 792. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. Regueiro, M. A. Campos, J. Pons, S. Alberti, and J. A. Bengoechea The uptake of a Klebsiella pneumoniae capsule polysaccharide mutant triggers an inflammatory response by human airway epithelial cells Microbiology, February 1, 2006; 152(2): 555 - 566. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Muller, H. Bayer, D. Myrtek, D. Ferrari, S. Sorichter, M. W. Ziegenhagen, G. Zissel, J. C. Virchow Jr., W. Luttmann, J. Norgauer, et al. The P2Y14 Receptor of Airway Epithelial Cells: Coupling to Intracellular Ca2+ and IL-8 Secretion Am. J. Respir. Cell Mol. Biol., December 1, 2005; 33(6): 601 - 609. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. L. M. Ricciardolo, P. J. Sterk, B. Gaston, and G. Folkerts Nitric Oxide in Health and Disease of the Respiratory System Physiol Rev, July 1, 2004; 84(3): 731 - 765. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. M. Hardiman, C. M. McNicholas-Bevensee, J. Fortenberry, C. T. Myles, B. Malik, D. C. Eaton, and S. Matalon Regulation of Amiloride-Sensitive Na+ Transport by Basal Nitric Oxide Am. J. Respir. Cell Mol. Biol., May 1, 2004; 30(5): 720 - 728. [Abstract] [Full Text] [PDF] |
||||
![]() |
U. Uhlig, H. Fehrenbach, R. A. Lachmann, T. Goldmann, B. Lachmann, E. Vollmer, and S. Uhlig Phosphoinositide 3-OH Kinase Inhibition Prevents Ventilation-induced Lung Cell Activation Am. J. Respir. Crit. Care Med., January 15, 2004; 169(2): 201 - 208. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |