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In vivo and in vitro methods for studying apoptotic cell engulfment in Drosophila.

Silva, EA; Burden, J; Franc, NC; (2008) In vivo and in vitro methods for studying apoptotic cell engulfment in Drosophila. Methods Enzymol , 446 39 - 59. 10.1016/S0076-6879(08)01603-0.

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Abstract

Proper development of all multicellular organisms involves programmed apoptosis. Completion of this process requires removal of the resulting cell corpses through phagocytosis by their neighbors or by macrophages. Studies in C. elegans have been fruitful in the genetic dissection of key pathways, but they lack the professional immune system of higher organisms. Mammalian studies have identified a plethora of factors that are required for engulfment, but redundancy in the pathways has made it difficult to explain the genetic hierarchy of these factors. Thus, Drosophila has proven to be a useful evolutionary intermediate in which to examine this phenomenon. Here we describe methods used for dissecting the mechanisms and pathways involved in the engulfment of apoptotic cells by Drosophila phagocytes. Included are methods to be used for in vivo studies in the early embryo that can be used to examine engulfment of dying cells at various stages of embryogenesis. We also describe in vitro techniques for the use of Drosophila cell culture, including cell engulfment assays, that can be used for general phenotypic analysis, as well as live cell studies. We provide advice on imaging, including the preparation of samples for high-resolution microscopy and quantification of potential engulfment phenotypes for both in vivo and in vitro methods.

Type:Article
Title:In vivo and in vitro methods for studying apoptotic cell engulfment in Drosophila.
Location:United States
DOI:10.1016/S0076-6879(08)01603-0
Language:English
Keywords:Acridine Orange, Animals, Apoptosis, Cell Line, Cell Separation, Dactinomycin, Drosophila, Embryo, Nonmammalian, Hemocytes, In Situ Nick-End Labeling, Macrophages, Microscopy, Electron, Transmission, Phagocytosis, Staining and Labeling, Ultraviolet Rays

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