Abstract:
:Bovine tracheal gland (BTG) cells in culture show an epithelial-fibroblastoid transition after several passages. To investigate these BTG cell phenotype changes, we studied the effects of both the culture medium and passage number on the expression of epithelial cytoskeletal proteins and glandular serous cell markers. We also analyzed the intracellular cAMP level in the basal state and after adrenergic stimulation. Three culture media were used: 1) serum-free defined medium (SFDM); 2) medium supplemented with 2% Ultroser G; and 3) medium supplemented with 10% fetal calf serum (FCS). Using immunofluorescence microscopy, we showed that, in the first 4 passages whatever the culture conditions, BTG cells expressed immunoreactivities to cytokeratin filaments and desmoplakins I and II, whereas vimentin filaments were not detected. After four passages, BTG cells cultured in 10% FCS or 2% Ultroser G became progressively fibroblastoid and showed immunoreactivities to both vimentin and cytokeratin intermediate filaments. No immunoreactivity to vimentin filaments was observed on BTG cells cultured in a SFDM. Using biochemical analysis, we showed that basal levels of cAMP in cultured BTG cells and lysozyme secretion by these cells vary according to the culture medium and passage number. It was higher in BTG cells cultured in a SFDM compared to that recovered from cells cultured in medium supplemented with Ultroser G or FCS. Whatever the culture medium, BTG cells responded to stimulation by isoproterenol. However, the results of stimulation in a SFDM were higher than in Ultroser G or FCS supplemented medium. We conclude that the BTG epithelial cell organization and the regulation of biosynthesis of secretory proteins by these cells in culture depend on both the culture medium and passage number.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Biol Celljournal_title
Biology of the cellauthors
Benali R,Dupuit F,Chevillard M,Jacquot J,Haye B,Puchelle Edoi
10.1016/0248-4900(91)90008-bsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
49-56issue
1eissn
0248-4900issn
1768-322Xpii
0248-4900(91)90008-Bjournal_volume
73pub_type
杂志文章abstract::This review is concerned with the formation during ciliogenesis of centrioles and basal bodies, primarily in epithelial multi-ciliated cells from the developing vertebrate respiratory and reproductive tracts. During ciliated cell differentiation, in these as well as in other cell types, cilium formation is preceded by...
journal_title:Biology of the cell
pub_type: 杂志文章,评审
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abstract::The PAS-positive-calcium-sensitive (Ca-s) cells of the pars intermedia (PI) were studied in goldfish kept in fresh water (FW), deionized water (DW), 1/3 sea water (SW) and 1/3 Ca-free SW. Ultrastructural studies show that Ca-s cells of control goldfish kept in FW have a low activity with elongated or deeply indented n...
journal_title:Biology of the cell
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更新日期:1983-01-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1016/0248-4900(94)90055-8
更新日期:1994-01-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND INFORMATION:The identification of a source of stem cells able to regenerate skeletal muscle was the goal of numerous studies with the aim to develop new therapeutic approaches for genetic muscle diseases or muscle injuries. A series of studies have demonstrated that stem cells derived from various tissues ma...
journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1042/BC20100112
更新日期:2011-11-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章,评审
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更新日期:2006-11-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1016/s0248-4900(01)01135-2
更新日期:2001-11-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1111/j.1768-322x.1984.tb00297.x
更新日期:1984-01-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1042/BC20070005
更新日期:2007-06-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1111/j.1768-322x.1985.tb00361.x
更新日期:1985-01-01 00:00:00
abstract::Revision of the reference map of the polytene chromosomes of Drosophila subobscura was started by means of the electron microscope. We present a map of regions 70B to 72D of the E chromosome obtained from squashed and thin-sectioned salivary glands. It was observed that the total number of bands in divisions 70B to 72...
journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1111/j.1768-322x.1988.tb00750.x
更新日期:1988-01-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1111/j.1768-322x.1984.tb00266.x
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND INFORMATION:Our previous studies have shown that calreticulin, a Ca2+-binding chaperone located in the endoplasmic reticulum, affects cell-substratum adhesions via the induction of vinculin and N-cadherin. Cells overexpressing calreticulin contain more vinculin than low expressers and make abundant contacts ...
journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1042/BC20060105
更新日期:2007-07-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1042/BC20060026
更新日期:2006-09-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1016/0248-4900(96)84773-3
更新日期:1996-01-01 00:00:00
abstract::The diversity of microtubular networks was analyzed in quail oviduct and in Paramecium cells using conventional and confocal immunofluorescence as well as pre- and post-embedding EM immunocytochemistry with a variety of anti-tubulin antibodies. The 6-11B-1 monoclonal antibody, specific for the post-translational acety...
journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1016/0248-4900(91)90069-y
更新日期:1991-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1042/BC20050051
更新日期:2006-07-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章,评审
doi:10.1111/boc.201700060
更新日期:2018-03-01 00:00:00
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journal_title:Biology of the cell
pub_type: 历史文章,杂志文章,评审
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更新日期:2003-09-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章
doi:10.1016/0248-4900(93)90129-3
更新日期:1993-01-01 00:00:00
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更新日期:2011-06-01 00:00:00
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journal_title:Biology of the cell
pub_type: 杂志文章,评审
doi:10.1111/j.1768-322x.1985.tb00319.x
更新日期:1984-01-01 00:00:00
abstract::Inside-out porcine thyroid follicles in culture undergo polarity reversal after being embedded in collagen gel. The newly-formed follicles reexpress some specific thyroid functions lost in inside-out follicles (Chambard et al., 1984. We present here an ultrastructural study of the inversion of polarity in this model s...
journal_title:Biology of the cell
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doi:10.1111/j.1768-322x.1986.tb00463.x
更新日期:1986-01-01 00:00:00
abstract::The sensory organs of the vertebrate head derive from two embryological structures, the neural crest and the ectodermal placodes. Although quite a lot is known about the secreted and transcription factors that regulate neural crest development, until recently little was known about the molecular pathways that regulate...
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更新日期:2005-05-01 00:00:00
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journal_title:Biology of the cell
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doi:10.1111/boc.201600042
更新日期:2017-02-01 00:00:00
abstract::Circulating glucocorticoid (GC) levels are thought to modulate the basal activity of pro-opiomelanocortin (POMC) neurons within the mediobasal hypothalamus (MBH) of the male rat. In a recent study we demonstrated that Fos-immunoreactivity (Fos-IR) was spontaneously induced throughout the dark phase of the light/dark c...
journal_title:Biology of the cell
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract::The location of lipopolysaccharide (LPS) was studied by immunofluorescence and immunoelectron microscopy in macrophages infected with a non-invasive Shigella dysenteriae 1 strain. Bacterial degradation began only 3 h after the end of infection. The first visible sign of degradation was detected by immunogold labelling...
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更新日期:1990-01-01 00:00:00