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| one publication added to basket [280701] |
Measurement of S-phase duration of adult stem cells in the flatworm Macrostomum lignano by double replication labelling and quantitative colocalization analysis
Verdoodt, F.; Willems, M.; Dhondt, I.; Houthoofd, W.; Bert, W.; De Vos, W.H. (2012). Measurement of S-phase duration of adult stem cells in the flatworm Macrostomum lignano by double replication labelling and quantitative colocalization analysis. Cell Biology International 36(12): 1251-1259. https://dx.doi.org/10.1042/CBI20120187
In: Cell Biology International. Wiley-Blackwell: Hoboken. ISSN 1065-6995; e-ISSN 1095-8355
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| Trefwoorden |
Platyhelminthes [WoRMS]
Marien/Kust |
| Author keywords |
cell cycle; colocalization; neoblast; platyhelminthes; regeneration;S-phase |
| Auteurs | | Top |
- Verdoodt, F.
- Willems, M.
- Dhondt, I.
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- Houthoofd, W.
- Bert, W.
- De Vos, W.H.
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| Abstract |
Platyhelminthes are highly attractive models for addressing fundamental aspects of stem cell biology in vivo. These organisms possess a unique stem cell system comprised of neoblasts that are the only proliferating cells during adulthood. We have investigated Ts (S-phase duration) of neoblasts during homoeostasis and regeneration in the flatworm, Macrostomum lignano. A double immunohistochemical technique was used, performing sequential pulses with the thymidine analogues CldU (chlorodeoxyuridine) and IdU (iododeoxyuridine), separated by variable chase times in the presence of colchicine. Owing to the localized nature of the fluorescent signals (cell nuclei) and variable levels of autofluorescence, standard intensity-based colocalization analyses could not be applied to accurately determine the colocalization. Therefore, an object-based colocalization approach was devised to score the relative number of double-positive cells. Using this approach, Ts (S-phase duration) in the main population of neoblasts was ∼13 h. During early regeneration, no significant change in Ts was observed. |
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