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Methods Mol Biol. 2018;1690:329-336. doi: 10.1007/978-1-4939-7383-5_25.

Magnetic Isolation of Phagosomes Containing Toll-Like Receptor Ligands.

Author information

1
Department of Molecular Biology and Microbiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA.
2
Department of Molecular Biology and Microbiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA. linden.hu@tufts.edu.

Abstract

Phagosomal compartments are critical in microbial defense as vesicles that degrade invading organisms. In a broader context, vesicular trafficking plays an important role in shuttling many different types of cargo that are critical for proper function of the cell. Endosomal and phagosomal vesicles are thus important locations for the assembly of intracellular signaling platforms that mediate host responses to invasive pathogens such as Borrelia burgdorferi. Isolation of phagosomes from cells is an important technique that allows for a detailed study of phagosomal components and signaling complex assembly. However, purification of phagosomes had previously been challenging and it has been difficult to obtain sufficient purity of the phagosomal fractions. Here, we modify a new magnetic isolation technique that greatly simplifies purification of phagosomes and isolates vesicles with sufficient purity for analysis.

KEYWORDS:

Borrelia burgdorferi; Lyme disease; Magnetic beads; Phagocytosis; Phagosomes; TLR2; Toll-like receptors

PMID:
29032556
DOI:
10.1007/978-1-4939-7383-5_25
[Indexed for MEDLINE]

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