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. 2023:2692:1-13.
doi: 10.1007/978-1-0716-3338-0_1.

Bacterial Binding, Phagocytosis, and Killing Capacity: Measurements Using Colony Forming Units

Affiliations

Bacterial Binding, Phagocytosis, and Killing Capacity: Measurements Using Colony Forming Units

Kyle E Novakowski et al. Methods Mol Biol. 2023.

Abstract

Herein, we provide a colony forming unit (CFU)-based counting method for quantitating the bacterial binding, phagocytosis, and killing capacity of phagocytes. Although these functions can be measured by immunofluorescence- and dye-based assays, quantitating CFUs are comparatively inexpensive and easy to perform. The protocol described below is easily modified for use with different phagocytes (e.g., macrophages, neutrophils, cell lines), types of bacteria, or opsonic conditions.

Keywords: Bacterial killing; Gentamicin protection; Macrophage; Particle binding; Phagocyte; Phagocytosis.

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References

    1. Cohn ZA, Morse SI (1959) Interactions between rabbit polymorphonuclear leucocytes and staphylococci. J Exp Med 110:419–443 - DOI - PubMed - PMC
    1. Fox EN (1974) M proteins of group A streptococci. Bacteriol Rev 38:57–86 - DOI - PubMed - PMC
    1. Cho K, Arimoto T, Igarashi T, Yamamoto M (2013) Involvement of lipoprotein PpiA of Streptococcus gordonii in evasion of phagocytosis by macrophages. Mol Oral Microbiol 28:379–391. https://doi.org/10.1111/omi.12031 - DOI - PubMed
    1. Mukouhara T, Arimoto T, Cho K et al (2011) Surface lipoprotein PpiA of Streptococcus mutans suppresses scavenger receptor MARCO-dependent phagocytosis by macrophages. Infect Immun 79:4933–4940. https://doi.org/10.1128/IAI.05693-11 - DOI - PubMed - PMC
    1. Dilworth JA, Hendley JO, Mandell GL (1975) Attachment and ingestion of gonococci by human neutrophils. Infect Immun 11:512–516 - DOI - PubMed - PMC

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