Ultrastructural and immunohistochemical studies on non-ciliated cells of the tracheal epithelium of normal, phenobarbital-treated, and 3-methylcholanthrene-treated mice

1985 ◽  
Vol 240 (2) ◽  
Author(s):  
K. Ishimura ◽  
M. Usa ◽  
H. Fujita ◽  
S. Kawata ◽  
M. Okamoto ◽  
...  

1987 ◽  
Vol 13 (2) ◽  
pp. 223-240 ◽  
Author(s):  
Linda N. Curtis ◽  
Johnny L. Carson ◽  
Albert M. Collier ◽  
Todd M. Gambling ◽  
S. S. Hu ◽  
...  




1993 ◽  
Vol 30 (1) ◽  
pp. 12-19 ◽  
Author(s):  
A. T. Hastie ◽  
L. P. Evans ◽  
A. M. Allen

Two hundred sixty tracheas were obtained from a Philadelphia abattoir under permit from the Department of Agriculture; the tracheas were excised from predominantly Holstein calves of both sexes that weighed approximately 250 kg. Tracheas were transported in normal saline to the laboratory at Thomas Jefferson University, Philadelphia, Pennsylvania. Evidence of bacteria adherent to the tracheal epithelium was found in specimens from 20/24 of these tracheas. The epithelium from each of five tracheas was placed in glutaraldehyde fixative for transmission electron microscopic examination. Epithelium from each of 12 other tracheas was placed in formaldehyde fixative for light microscopic examination. Microscopically, 13 of these 17 bovine tracheal epithelia were observed to contain bacteria located longitudinally parallel to and between cilia and microvilli of ciliated cells. Preparations of ciliary axonemes isolated from the epithelium of seven additional bovine tracheas also contained these bacteria in sections viewed by a transmission electron microscope. These bacteria had two different ultrastructural morphologies: filamentous with a trilaminar-structured cell wall and short with a thick, homogeneously stained cell wall beneath a regularly arrayed surface layer. The short bacillus had surface carbohydrates, including mannose, galactose, and N-acetylgalactosamine, identified by lectin binding. The filamentous bacillus was apparently externally deficient in these carbohydrates. Immunogold staining revealed that the filamentous bacillus was antigenically related to cilia-associated respiratory (CAR) bacillus, which has been identified in rabbit and rodent species. Significantly decreased numbers of cilia were obtained from tracheal epithelium heavily colonized by the filamentous bacilli, suggesting a pathologic change in ciliated cells.



Lung ◽  
2001 ◽  
Vol 179 (4) ◽  
pp. 225-232 ◽  
Author(s):  
M.J.R. Oliveira ◽  
A.S. Pereira ◽  
N.A.A. Castelo Branco ◽  
N.R. Grande ◽  
A.P. águas


1993 ◽  
Vol 9 (4) ◽  
pp. 361-370 ◽  
Author(s):  
P. P. Massion ◽  
C. C. P. Funari ◽  
I. Ueki ◽  
S. Ikeda ◽  
D. M. McDonald ◽  
...  


1988 ◽  
Vol 24 (9) ◽  
pp. 931-935 ◽  
Author(s):  
A. A. J. J. L. Rutten ◽  
R. B. Beems ◽  
J. W. G. M. Wilmer ◽  
V. J. Feron


1980 ◽  
Vol 89 (3) ◽  
pp. 241-248 ◽  
Author(s):  
Kensuke Watanabe

The activity of endogenous peroxidase was demonstrated in light ciliated cells, mature goblet cells, and nonciliated serous cells, but not in basal cells, intermediate cells, dark ciliated cells or immature goblet cells of the upper tracheal epithelium of rats, using the diaminobenzidine method for cytochemical demonstration of peroxidase activity. The peroxidase activity was the most intense in the epithelium of the first tracheal ring and gradually diminished at lower tracheal levels, becoming extremely faint in the vicinity of the middle of the trachea. The activity was localized in cisternae of rough-surfaced endoplasmic reticulum (r-ER) including the nuclear envelope, some vesicles and saccules of the Golgi complex, secretory granules, and small apical vesicles. It is believed that the basal cells were transformed into the intermediate cells, and some of the intermediate cells were turned into the ciliated cells, while other intermediate cells were differentiated into the goblet cells. The dark ciliated cells proved to be the immature ciliated cells immediately after the transformation from the intermediate cells. In these cells, peroxidase is not yet produced.



1986 ◽  
Vol 60 (2) ◽  
pp. 416-426 ◽  
Author(s):  
S. F. Man ◽  
W. C. Hulbert ◽  
K. Mok ◽  
T. Ryan ◽  
A. B. Thomson

The bioelectric and barrier properties of the tracheal epithelium in nose-breathing dogs and in dogs that had been exposed for 75 min to compressed air or to two high concentrations of SO2 were measured and compared. We also studied tissues that had been treated with chloroform. Based on a model of restrictive diffusion we demonstrated heteropores (6 and 250 A) in the control tissues. Bioelectric changes due to 100-ppm SO2 were minimal. After exposure to 500 ppm SO2, adverse changes in the bioelectric properties were focal; they were marked in 8 out of 12 animals but were less striking in the other 4. Nonelectrolyte permeability increased with an increase in SO2 concentrations. Small pores were still present in the tissues severely affected by SO2 but they were absent in chloroform-treated tissues. Scanning electron microscopy of tissues from animals exposed to 500 ppm SO2 showed that in the same dog tissue appearance varied from normal to one of repair (normal bioelectric properties) or one of marked exfoliation of ciliated cells (abnormal bioelectric measurements).





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