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Erratum for Ambati et al., "Dectin-1-Targeted Antifungal Liposomes Exhibit Enhanced Efficacy".

ABSTRACT:

SUBMITTER: Ambati S

PROVIDER: S-EPMC6403456 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Erratum for Ambati et al., "Dectin-1-Targeted Antifungal Liposomes Exhibit Enhanced Efficacy".

Ambati Suresh S Ferarro Aileen R AR Kang S Earl SE Lin Jianfeng J Lin Xiaorong X Momany Michelle M Lewis Zachary A ZA Meagher Richard B RB

mSphere 20190306 2

PMID: 30842270

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Dectin-3-targeted antifungal liposomes efficiently bind and kill diverse fungal pathogens.

Project description:DectiSomes are anti-infective drug-loaded liposomes targeted to pathogenic cells by pathogen receptors including the Dectins. We have previously used C-type lectin (CTL) pathogen receptors Dectin-1, Dectin-2, and DC-SIGN to target DectiSomes to the extracellular oligoglycans surrounding diverse pathogenic fungi and kill them. Dectin-3 (also known as MCL, CLEC4D) is a CTL pathogen receptor whose known cognate ligands are partly distinct from other CTLs. We expressed and purified a truncated Dectin-3 polypeptide (DEC3) comprised of its carbohydrate recognition domain and stalk region. We prepared amphotericin B (AmB)-loaded pegylated liposomes (AmB-LLs) and coated them with this isoform of Dectin-3 (DEC3-AmB-LLs), and we prepared control liposomes coated with bovine serum albumin (BSA-AmB-LLs). DEC3-AmB-LLs bound to the exopolysaccharide matrices of Candida albicans, Rhizopus delemar (formerly known as R. oryzae), and Cryptococcus neoformans from one to several orders of magnitude more strongly than untargeted AmB-LLs or BSA-AmB-LLs. The data from our quantitative fluorescent binding assays were standardized using a CellProfiler program, AreaPipe, that was developed for this purpose. Consistent with enhanced binding, DEC3-AmB-LLs inhibited and/or killed C. albicans and R. delemar more efficiently than control liposomes and significantly reduced the effective dose of AmB. In conclusion, Dectin-3 targeting has the potential to advance our goal of building pan-antifungal DectiSomes.

| S-EPMC10823756 | biostudies-literature

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