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 Vol 4: Using ontologies to study cell transitions.


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This article is from Journal of Biomedical Semantics, volume 4.AbstractBackground: Understanding, modelling and influencing the transition between different states of cells, be it reprogramming of somatic cells to pluripotency or trans-differentiation between cells, is a hot topic in current biomedical and cell-biological research. Nevertheless, the large body of published knowledge in this area is underused, as most results are only represented in natural language, impeding their finding, comparison, aggregation, and usage. Scientific understanding of the complex molecular mechanisms underlying cell transitions could be improved by making essential pieces of knowledge available in a formal and thus computable manner. Results: We describe the outline of two ontologies for cell phenotypes and for cellular mechanisms which together enable the representation of data curated from the literature or obtained by bioinformatics analyses and thus for building a knowledge base on mechanisms involved in cellular reprogramming. In particular, we discuss how comprehensive ontologies of cell phenotypes and of changes in mechanisms can be designed using the entity-quality EQ model. Conclusions: We show that the principles for building cellular ontologies published in this work allow deeper insights into the relations between the continuants cell phenotypes and the occurrents cell mechanism changes involved in cellular reprogramming, although implementation remains for future work. Further, our design principles lead to ontologies that allow the meaningful application of similarity searches in the spaces of cell phenotypes and of mechanisms, and, especially, of changes of mechanisms during cellular transitions.



Author: Fuellen, Georg; Jansen, Ludger; Leser, Ulf; Kurtz, Andreas

Source: https://archive.org/







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