Understanding in vivo blood cell migration Drosophila hemocytes lead the way

Reference:

Evans, I. R. and Wood, W., 2011. Understanding in vivo blood cell migration Drosophila hemocytes lead the way. Fly, 5 (2), pp. 110-114.

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Official URL:

http://dx.doi.org/10.4161/fly.5.2.14055

Abstract

Drosophila embryonic hemocytes have emerged as a potent system to analyse the roles of key regulators of the actin and microtubule cytoskeletons live and in an in vivo context (Table 1 and references therein). The relative ease with which live imaging can be used to visualize the invasive migrations of these highly motile macrophages and their responses to wound and chemoattractant signals make them a particularly appropriate and genetically tractable cell type to study in relation to pathological conditions such as cancer metastasis and inflammation. 1-3 In order to understand how signaling pathways are integrated for a coordinated response, a question with direct relevance to autoimmune dysfunction, we have sought to more fully characterize the inputs these cells receive in vivo over the course of their developmental dispersal. These studies have recently revealed that hemocyte migration is intimately associated with the development of the ventral nerve cord (VNC), a structure used by hemocytes to disperse over the embryo that itself requires this association for its correct morphogenesis. Crucially the VNC must separate from the epidermis to create a channel for hemocyte migration, revealing how constriction of extracellular space can be used to control cell migration in vivo.

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