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Dscam1 in pancrustacean immunity: current status and a look to the future

Armitage, Sophie A. O. and Kurtz, Joachim and Brites, Daniela and Dong, Yuemei and Du Pasquier, Louis and Wang, Han-Ching. (2017) Dscam1 in pancrustacean immunity: current status and a look to the future. Frontiers in immunology, 8. p. 662.

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Abstract

The Down syndrome cell adhesion molecule 1 (Dscam1) gene is an extraordinary example of diversity: by combining alternatively spliced exons, thousands of isoforms can be produced from just one gene. So far, such diversity in this gene has only been found in insects and crustaceans, and its essential part in neural wiring has been well-characterized for Drosophila melanogaster. Ten years ago evidence from D. melanogaster showed that the Dscam1 gene is involved in insect immune defense and work on Anopheles gambiae indicated that it is a hypervariable immune receptor. These exciting findings showed that via processes of somatic diversification insects have the possibility to produce unexpected immune molecule diversity, and it was hypothesized that Dscam1 could provide the mechanistic underpinnings of specific immune responses. Since these first publications the quest to understand the function of this gene has uncovered fascinating insights from insects and crustaceans. However, we are still far from a complete understanding of how Dscam1 functions in relation to parasites and pathogens and its full relevance for the immune system. In this Hypothesis and Theory article, we first briefly introduce Dscam1 and what we know so far about how it might function in immunity. By focusing on seven questions, we then share our sometimes contrasting thoughts on what the evidence tells us so far, what essential experiments remain to be done, and the future prospects, with the aim to provide a multiangled view on what this fascinating gene has to do with immune defense.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Medical Parasitology and Infection Biology > Tuberculosis Research (Gagneux)
UniBasel Contributors:Brites, Daniela
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Frontiers Media
ISSN:1664-3224
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:08 Dec 2017 13:38
Deposited On:07 Dec 2017 06:27

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