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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Papadopoulos, V. Dym, M. |
| Description | Author Affiliation: Papadopoulos V ( Department of Cell Biology, Georgetown University Medical Center, Washington, DC 20007.); |
| Abstract | When Sertoli cells of the seminiferous epithelium in the testis were cultured on Matrigel (a reconstituted basement membrane), laminin, or one of the biologically active laminin-derived peptides (YIGSR, SIKVAV, or RGD), they exhibited dramatic changes in morphology accompanied by changes in protein secretion and gene expression, including a rapidly induced stimulation of c-fos mRNA. To examine the role of c-fos in Sertoli cell attachment, spreading, and differentiation on extracellular matrix, we constructed sense and antisense c-fos phosphorothioate oligodeoxynucleotides (ODNs). Sertoli cells, in small clumps of 10-20 cells, cultured on Matrigel or laminin in the presence of ODNs antisense to c-fos (30 micrograms/ml) did not spread for the first 10-20 hr. After that time, normal spreading occurred, probably as a result of ODN degradation. Cells cultured in medium supplemented with ODNs sense to c-fos (30 micrograms/ml), or without ODNs, spread within 30 min to 1 hr, and after 12 hr a monolayer was established. Furthermore, incubation of Sertoli cells with ODNs antisense to c-fos resulted in a significant reduction of c-fos protein levels, whereas treatment with ODNs sense to c-fos barely affected c-fos protein expression. These data indicate that c-fos may mediate the events involved in Sertoli cell attachment and spreading upon contact of the cells with extracellular matrix. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 15 |
| Volume Number | 91 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1994-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Basement Membrane Metabolism Genes, Fos Proto-Oncogene Proteins C-fos Genetics Sertoli Cells Cytology Amino Acid Sequence Animals Cell Differentiation Cells, Cultured DNA Molecular Sequence Data Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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