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Antoran A, Aparicio-Fernandez L, Pellon A, Buldain I, Martin-Souto L, Rementeria A, Ghannoum MA, Fuchs BB, Mylonakis E, Hernando FL, Ramirez-Garcia A. The monoclonal antibody Ca37, developed against Candida albicans alcohol dehydrogenase, inhibits the yeast in vitro and in vivo. Sci Rep 2020; 10:9206. [PMID: 32514067 PMCID: PMC7280234 DOI: 10.1038/s41598-020-65859-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 05/05/2020] [Indexed: 12/18/2022] Open
Abstract
Candida albicans is a commensal yeast able to cause life threatening invasive infections particularly in immunocompromised patients. Despite the availability of antifungal treatments, mortality rates are still unacceptably high and drug resistance is increasing. We, therefore, generated the Ca37 monoclonal antibody against the C. albicans alcohol dehydrogenase (Adh) 1. Our data showed that Ca37 was able to detect C. albicans cells, and it bound to Adh1 in yeast and Adh2 in hyphae among the cell wall-associated proteins. Moreover, Ca37 was able to inhibit candidal growth following 18 h incubation time and reduced the minimal inhibitory concentration of amphotericin B or fluconazole when used in combination with those antifungals. In addition, the antibody prolonged the survival of C. albicans infected-Galleria mellonella larvae, when C. albicans was exposed to antibody prior to inoculating G. mellonella or by direct application as a therapeutic agent on infected larvae. In conclusion, the Ca37 monoclonal antibody proved to be effective against C. albicans, both in vitro and in vivo, and to act together with antifungal drugs, suggesting Adh proteins could be interesting therapeutic targets against this pathogen.
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Affiliation(s)
- Aitziber Antoran
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Leire Aparicio-Fernandez
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Aize Pellon
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
- Aize Pellon, Centre for Host-Microbiome Interactions, Mucosal and Salivary Biology Division, King's College London Dental Institute, London, United Kingdom
| | - Idoia Buldain
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Leire Martin-Souto
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Aitor Rementeria
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Mahmoud A Ghannoum
- Department of Dermatology and Center for Medical Mycology, Case Western Reserve University, and University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Beth Burgwyn Fuchs
- Division of Infectious Diseases, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Eleftherios Mylonakis
- Division of Infectious Diseases, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Fernando L Hernando
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain.
| | - Andoni Ramirez-Garcia
- Fungal and Bacterial Biomics Research Group. Department of Immunology, Microbiology and Parasitology. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Pace SE, Joshi SB, Esfandiary R, Stadelman R, Bishop SM, Middaugh CR, Fisher MT, Volkin DB. The Use of a GroEL-BLI Biosensor to Rapidly Assess Preaggregate Populations for Antibody Solutions Exhibiting Different Stability Profiles. J Pharm Sci 2017; 107:559-570. [PMID: 29037466 DOI: 10.1016/j.xphs.2017.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 10/02/2017] [Accepted: 10/05/2017] [Indexed: 11/29/2022]
Abstract
An automated method using biotinylated GroEL-streptavidin biosensors with biolayer interferometry (GroEL-BLI) was evaluated to detect the formation of transiently formed, preaggregate species in various pharmaceutically relevant monoclonal antibody (mAb) samples. The relative aggregation propensity of various IgG1 and IgG4 mAbs was rank ordered using the GroEL-BLI biosensor method, and the least stable IgG4 mAb was subjected to different stresses including elevated temperatures, acidic pH, and addition of guanidine HCl. The GroEL-BLI biosensor detects mAb preaggregate formation mostly before, or sometimes concomitantly with, observing soluble aggregates and subvisible particles using size-exclusion chromatography and microflow imaging, respectively. A relatively unstable bispecific antibody (Bis-3) was shown to bind the GroEL biosensor even at low temperatures (25°C). During thermal stress (50°C, 1 h), increased Bis-3 binding to GroEL-biosensors was observed prior to aggregation by size-exclusion chromatography or microflow imaging. Transmission electron microscopy analysis of Bis-3 preaggregate GroEL complexes revealed, in some cases, potential hydrophobic interaction sites between the Fc domain of the Bis-3 and GroEL protein. The automated BLI method not only enables detection of transiently formed preaggregate species that initiate protein aggregation pathways but also permits rapid mAb formulation stability assessments at low volumes and low protein concentrations.
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Affiliation(s)
- Samantha E Pace
- Department of Pharmaceutical Chemistry, Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66047
| | - Sangeeta B Joshi
- Department of Pharmaceutical Chemistry, Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66047
| | - Reza Esfandiary
- Department of Formulation Sciences, MedImmune, One MedImmune Way, Gaithersburg, Maryland 20878
| | - Robert Stadelman
- Department of Cell Culture and Fermentation Sciences, MedImmune, One MedImmune Way, Gaithersburg, Maryland 20878
| | - Steven M Bishop
- Department of Formulation Sciences, MedImmune, One MedImmune Way, Gaithersburg, Maryland 20878
| | - C R Middaugh
- Department of Pharmaceutical Chemistry, Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66047
| | - Mark T Fisher
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, Kansas 66160.
| | - David B Volkin
- Department of Pharmaceutical Chemistry, Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66047.
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Sadavarte R, Filipe CDM, Ghosh R. Recovery of functionally-active protein from inclusion bodies using a thermal-cycling method. Biotechnol Prog 2016; 33:133-139. [PMID: 27690284 DOI: 10.1002/btpr.2376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 09/27/2016] [Indexed: 11/05/2022]
Abstract
Heterologous overexpression of genes in Escherichia coli has made it possible to obtain high titers of recombinant proteins. However, this can result in the formation of aggregated protein particles known as 'inclusion bodies'. Protein sequestered as inclusion body is inactive and needs to be converted back to its functional form by refolding using appropriate techniques. In the current study inclusion bodies of the enzyme aminoglycoside nucleotidyl transferase (or ANT(2″)-Ia) were first solubilized in urea and subsequently subjected to thermal cycling under controlled conditions as part of the refolding strategy. Thermal cycling led to disaggregation of the individual protein chains and simultaneously refolding the released protein molecules to their native state. The optimum condition was identified as 10-80°C thermal cycling at 3°C s-1 for 2 h. Enzyme activity measurements showed that thermal cycling under optimized conditions resulted in 257% activity recovery when compared with nonrefolded protein. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 33:133-139, 2017.
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Affiliation(s)
- Rahul Sadavarte
- Dept. of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Carlos D M Filipe
- Dept. of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Raja Ghosh
- Dept. of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
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Ohadi K, Legge RL, Budman HM. Intrinsic fluorescence-basedat situsoft sensor for monitoring monoclonal antibody aggregation. Biotechnol Prog 2015; 31:1423-32. [DOI: 10.1002/btpr.2140] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 05/29/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Kaveh Ohadi
- Dept. of Chemical Engineering; University of Waterloo; Waterloo ON N2L 3G1 Canada
| | - Raymond L. Legge
- Dept. of Chemical Engineering; University of Waterloo; Waterloo ON N2L 3G1 Canada
| | - Hector M. Budman
- Dept. of Chemical Engineering; University of Waterloo; Waterloo ON N2L 3G1 Canada
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