Turnover and Maturation Kinetics In the Hairless Mouse Epidermis. Continuous [3H]Tdr Labelling and Mathematical Model Analyses
| Autor: | E. Thorudt, Ole Petter F. Clausen, E. Aarnaes |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Kinetics
Mitosis Biology Flow cytometry Mice Basal (phylogenetics) chemistry.chemical_compound Labelling medicine Animals Interphase Mice Hairless medicine.diagnostic_test Cell Cycle Cell Differentiation Cell Biology General Medicine Cell cycle Flow Cytometry Hairless Epidermal Cells Biochemistry chemistry Biophysics Autoradiography Thymidine Cell Division Mathematics |
| Zdroj: | Cell Proliferation. 21:301-314 |
| ISSN: | 1365-2184 0960-7722 |
| Popis: | Hairless mice were continuously labelled with 10 microCi of tritiated thymidine ([3H]TdR) every 4 h for 8 d, and the proportions of labelled basal and differentiating cells were recorded separately. The mitotic rate was measured by the stathmokinetic method and the cell cycle distributions were measured by flow cytometry of isolated basal cells at intervals during the labelling period. The mitotic rate of the [3H]TdR-injected animals did not deviate from control values during the first 5 d. Computer simulations of the data based on various mathematical models were made, and three main conclusions were obtained: (1) a large spread in transit times through the G1 phase was found, together with a very narrow distribution in maturation time of differentiating cells; (2) about 20% of the differentiating cells were estimated to leave the basal cell layer directly after mitosis. This is consistent with results obtained from different sets of data; and (3) during continuous labelling more than 90% of the cells are labelled during each passage through the S phase. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|