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Zambry NS, Rusly NS, Awang MS, Md Noh NA, Yahya ARM. Production of lipopeptide biosurfactant in batch and fed-batch Streptomyces sp. PBD-410L cultures growing on palm oil. Bioprocess Biosyst Eng 2021; 44:1577-1592. [PMID: 33687550 DOI: 10.1007/s00449-021-02543-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 02/19/2021] [Indexed: 10/22/2022]
Abstract
The present study focused on lipopeptide biosurfactant production by Streptomyces sp. PBD-410L in batch and fed-batch fermentation in a 3-L stirred-tank reactor (STR) using palm oil as a sole carbon source. In batch cultivation, the impact of bioprocessing parameters, namely aeration rate and agitation speed, was studied to improve biomass growth and lipopeptide biosurfactant production. The maximum oil spreading technique (OST) result (45 mm) which corresponds to 3.74 g/L of biosurfactant produced, was attained when the culture was agitated at 200 rpm and aeration rate of 0.5 vvm. The best aeration rate and agitation speed obtained from the batch cultivation was adopted in the fed-batch cultivation using DO-stat feeding strategy to further improve the lipopeptide biosurfactant production. The lipopeptide biosurfactant production was enhanced from 3.74 to 5.32 g/L via fed-batch fermentation mode at an initial feed rate of 0.6 mL/h compared to that in batch cultivation. This is the first report on the employment of fed-batch cultivation on the production of biosurfactant by genus Streptomyces.
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Affiliation(s)
- Nor Syafirah Zambry
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | | | - Mohd Syafiq Awang
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Nur Asshifa Md Noh
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
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Juan A, Cimas FJ, Bravo I, Pandiella A, Ocaña A, Alonso-Moreno C. An Overview of Antibody Conjugated Polymeric Nanoparticles for Breast Cancer Therapy. Pharmaceutics 2020; 12:pharmaceutics12090802. [PMID: 32854255 PMCID: PMC7558516 DOI: 10.3390/pharmaceutics12090802] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 01/09/2023] Open
Abstract
Nanoparticles (NPs) are promising drug delivery systems (DDS) for identifying and treating cancer. Active targeting NPs can be generated by conjugation with ligands that bind overexpressed or mutant cell surface receptors on target cells that are poorly or not even expressed on normal cells. Receptor-mediated endocytosis of the NPs occurs and the drug is released inside the cell or in the surrounding tissue due to the bystander effect. Antibodies are the most frequently used ligands to actively target tumor cells. In this context, antibody-based therapies have been extensively used in HER2+ breast cancer. However, some patients inherently display resistance and in advanced stages, almost all eventually progress. Functionalized NPs through conjugation with antibodies appear to be a promising strategy to optimize targeted therapies due to properties related to biocompatibility, suitable delivery control and efficiency of functionalization. This review is focused on the different strategies to conjugate antibodies into polymeric NPs. Recent antibody conjugation approaches applied to the improvement of breast cancer therapy are highlighted in this review.
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Affiliation(s)
- Alberto Juan
- Oncología traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02008 Albacete, Spain; (A.J.); (F.J.C.)
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain;
| | - Francisco J. Cimas
- Oncología traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02008 Albacete, Spain; (A.J.); (F.J.C.)
| | - Iván Bravo
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain;
- School of Pharmacy, University of Castilla-La Mancha, 02008 Albacete, Spain
| | - Atanasio Pandiella
- Centro de Investigación del Cáncer-CSIC, IBSAL- Salamanca and CIBERONC, 37007 Salamanca, Spain;
| | - Alberto Ocaña
- Oncología traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02008 Albacete, Spain; (A.J.); (F.J.C.)
- Experimental Therapeutics Unit, Hospital clínico San Carlos, IdISSC and CIBERONC, 28040 Madrid, Spain
- Correspondence: (A.O.); (C.A.-M.); Tel.: +34-635-681806 (A.O.); +34-9675-99200 (C.A.-M)
| | - Carlos Alonso-Moreno
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain;
- School of Pharmacy, University of Castilla-La Mancha, 02008 Albacete, Spain
- Correspondence: (A.O.); (C.A.-M.); Tel.: +34-635-681806 (A.O.); +34-9675-99200 (C.A.-M)
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Marques AC, Costa PJ, Velho S, Amaral MH. Functionalizing nanoparticles with cancer-targeting antibodies: A comparison of strategies. J Control Release 2020; 320:180-200. [PMID: 31978444 DOI: 10.1016/j.jconrel.2020.01.035] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/17/2020] [Accepted: 01/18/2020] [Indexed: 01/07/2023]
Abstract
Standard cancer therapies sometimes fail to deliver chemotherapeutic drugs to tumor cells in a safe and effective manner. Nanotechnology takes the lead in providing new therapeutic options for cancer due to major potential for selective targeting and controlled drug release. Antibodies and antibody fragments are attracting much attention as a source of targeting ligands to bind specific receptors that are overexpressed on cancer cells. Therefore, researchers are devoting time and effort to develop targeting strategies based on nanoparticles functionalized with antibodies, which hold great promise to enhance therapeutic efficacy and circumvent severe side effects. Several methods have been described to immobilize antibodies on the surface of nanoparticles. However, selecting the most appropriate for each application is challenging but also imperative to preserve antigen binding ability and yield stable antibody-conjugated nanoparticles. From this perspective, we aim to provide considerable knowledge on the most widely used methods of functionalization that can be helpful for decision-making and design of conjugation protocols as well. This review summarizes adsorption, covalent conjugation (carbodiimide, maleimide and "click" chemistries) and biotin-avidin interaction, while discussing the advantages, limitations and relevant therapeutic approaches currently under investigation.
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Affiliation(s)
- A C Marques
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto (FFUP), R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - P J Costa
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto (FFUP), R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - S Velho
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal; IPATIMUP - Institute of Molecular Pathology and Immunology of the University of Porto, R. Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
| | - M H Amaral
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto (FFUP), R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
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Mindt M, Walter T, Risse JM, Wendisch VF. Fermentative Production of N-Methylglutamate From Glycerol by Recombinant Pseudomonas putida. Front Bioeng Biotechnol 2018; 6:159. [PMID: 30474025 PMCID: PMC6237917 DOI: 10.3389/fbioe.2018.00159] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 10/16/2018] [Indexed: 12/02/2022] Open
Abstract
N-methylated amino acids are present in diverse biological molecules in bacteria, archaea and eukaryotes. There is an increasing interest in this molecular class of alkylated amino acids by the pharmaceutical and chemical industries. N-alkylated amino acids have desired functions such as higher proteolytic stability, enhanced membrane permeability and longer peptide half-lives, which are important for the peptide-based drugs, the so-called peptidomimetics. Chemical synthesis of N-methylated amino acids often is limited by incomplete stereoselectivity, over-alkylation or the use of hazardous chemicals. Here, we describe metabolic engineering of Pseudomonas putida KT2440 for the fermentative production of N-methylglutamate from simple carbon sources and monomethylamine. P. putida KT2440, which is generally recognized as safe and grows with glucose and the alternative feedstock glycerol as sole carbon and energy source, was engineered for the production of N-methylglutamate using heterologous enzymes from Methylobacterium extorquens. About 3.9 g L−1N-methylglutamate accumulated within 48 h in shake flask cultures with minimal medium containing monomethylamine and glycerol. A fed-batch cultivation process yielded a N-methylglutamate titer of 17.9 g L−1.
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Affiliation(s)
- Melanie Mindt
- Genetics of Prokaryotes, Faculty of Biology and CeBiTec, Bielefeld University, Bielefeld, Germany
| | - Tatjana Walter
- Genetics of Prokaryotes, Faculty of Biology and CeBiTec, Bielefeld University, Bielefeld, Germany
| | - Joe Max Risse
- Fermentation Technology, Technical Faculty and CeBiTec, Bielefeld University, Bielefeld, Germany
| | - Volker F Wendisch
- Genetics of Prokaryotes, Faculty of Biology and CeBiTec, Bielefeld University, Bielefeld, Germany
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Ughetti M, Jussen D, Riedlberger P. The ejector loop reactor: Application for microbial fermentation and comparison with a stirred-tank bioreactor. Eng Life Sci 2018; 18:281-286. [PMID: 32624907 DOI: 10.1002/elsc.201700141] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/24/2017] [Accepted: 01/11/2018] [Indexed: 12/12/2022] Open
Abstract
Ejector loop reactors (ELR) are successfully used in industrial chemical processes for gas/liquid reactions. They achieve higher mass transfer rates compared to the stirred-tank reactor (STR) at comparable specific power input. Insufficient oxygen transport and shear stress induced growth inhibition are limiting parameters during microbial fermentation. Due to its better mass transfer characteristics, the ELR was expected to have beneficial effects on biomass and recombinant protein production. One concern, however, was whether the ELR's shear stress characteristics would have a negative effect. This study evaluated the suitability of using the Buss-Loop® Reactor (BLR), one of the most advanced ELR technologies, as a bioreactor. The well-studied STR was used as a reference. A lab scale BLR was adapted for microbial fermentation. Mass transfer rates and specific power inputs were within the same order of magnitude in the ELR and the reference STR. Maximum k L a values of 207 and 205 h-1 at power inputs of 6.9 and 9.7 W/L were measured in the ELR and STR, respectively. During batch fermentation of Escherichia coli K12 MG1655, maximum cell densities were higher in the ELR (OD600 of 22) than in the STR (OD600 of 18). Green fluorescence protein (GFP) production with pGS1 was comparable; however, more GFP was released into the media in the ELR. This indicates higher cell disruption compared to the STR. Despite this drawback of the first prototype, our work clearly demonstrates the potential of the ELR as a system for microbial fermentations.
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Affiliation(s)
- Manuel Ughetti
- Research Group Chemical Engineering Institute of Chemistry and Biotechnology Zurich University of Applied Sciences Wädenswil Switzerland.,Buss ChemTech AG Pratteln Switzerland
| | - Daniel Jussen
- Research Group Chemical Engineering Institute of Chemistry and Biotechnology Zurich University of Applied Sciences Wädenswil Switzerland
| | - Peter Riedlberger
- Research Group Chemical Engineering Institute of Chemistry and Biotechnology Zurich University of Applied Sciences Wädenswil Switzerland
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Jeschek M, Bahls MO, Schneider V, Marlière P, Ward TR, Panke S. Biotin-independent strains of Escherichia coli for enhanced streptavidin production. Metab Eng 2017; 40:33-40. [DOI: 10.1016/j.ymben.2016.12.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/13/2016] [Accepted: 12/26/2016] [Indexed: 11/16/2022]
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Müller JM, Bruhn S, Flaschel E, Friehs K, Risse JM. GAP promoter-based fed-batch production of highly bioactive core streptavidin byPichia pastoris. Biotechnol Prog 2016; 32:855-64. [DOI: 10.1002/btpr.2283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/02/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jakob Michael Müller
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Simon Bruhn
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Erwin Flaschel
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Karl Friehs
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Joe Max Risse
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
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Wetzel D, Müller JM, Flaschel E, Friehs K, Risse JM. Fed-batch production and secretion of streptavidin by Hansenula polymorpha: Evaluation of genetic factors and bioprocess development. J Biotechnol 2016; 225:3-9. [DOI: 10.1016/j.jbiotec.2016.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 03/04/2016] [Accepted: 03/10/2016] [Indexed: 11/16/2022]
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Constitutive production and efficient secretion of soluble full-length streptavidin by an Escherichia coli ‘leaky mutant’. J Biotechnol 2016; 221:91-100. [DOI: 10.1016/j.jbiotec.2016.01.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 01/18/2016] [Accepted: 01/22/2016] [Indexed: 11/22/2022]
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Müller JM, Risse JM, Friehs K, Flaschel E. Model-based development of an assay for the rapid detection of biotin-blocked binding sites of streptavidin. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Jakob M. Müller
- Chair of Fermentation Engineering; Faculty of Technology; Bielefeld University; Bielefeld Germany
| | - Joe M. Risse
- Chair of Fermentation Engineering; Faculty of Technology; Bielefeld University; Bielefeld Germany
| | - Karl Friehs
- Chair of Fermentation Engineering; Faculty of Technology; Bielefeld University; Bielefeld Germany
| | - Erwin Flaschel
- Chair of Fermentation Engineering; Faculty of Technology; Bielefeld University; Bielefeld Germany
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Müller J, Risse J, Flaschel E. Morphological Analysis of Streptomyces avidiniiin Microplates and Shake Flasks. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Oligotrophy is Helpful for the Isolation of Bioactive Actinomycetes. Indian J Microbiol 2014; 54:178-84. [PMID: 25320419 DOI: 10.1007/s12088-014-0444-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 01/03/2014] [Indexed: 10/25/2022] Open
Abstract
It is necessary to develop new methods for the isolation of unknown actinomycetes from soils. To evaluate the effects of oligotrophic medium on the isolation of soil actinomycetes and develop a new isolation method, the Gause's synthetic medium was diluted to one tenth the recommended concentration in the present study. Soil dilution plate technique was used to isolate actinomycetes from the soil samples. Oligotrophy decreased actinomycete and streptomycete counts, as well as the number of antagonistic actinomycete species. Oligotrophy also decreased the number of actinomycete species in five samples. Some actinomycete species were cultured only on the oligotrophic medium, whereas other species could not be cultured. Oligotrophy decreased actinomycete counts more significantly for soils with organic matter content >40 g/kg. We used 16S rRNA sequence analysis to identify 22 actinomycete species that were only cultured on the oligotrophic medium. Oligotrophic medium was helpful for the isolation of Streptomyces spp., Micromonospora spp. and Streptosporangium spp. Slightly more than 80 % of the identified actinomycete species were biologically active. Therefore, we could draw a conclusion that oligotrophic medium could be helpful for the discovery of new antibiotic producers and the exploitation and utilization of new, biologically active compounds.
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Ng IS, Ye C, Zhang Z, Lu Y, Jing K. Daptomycin antibiotic production processes in fed-batch fermentation by Streptomyces roseosporus NRRL11379 with precursor effect and medium optimization. Bioprocess Biosyst Eng 2013; 37:415-23. [PMID: 23828246 DOI: 10.1007/s00449-013-1007-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 06/23/2013] [Indexed: 01/29/2023]
Abstract
Sodium decanoate was first found to be an effective precursor for synthesis of daptomycin from Streptomyces roseosporus NRRL11379 which was increased to 71.55-fold, compared with decanoic acid. The optimal flow rate of precursor was at 600 mg/(L day) after 48 h fermentation. From protein analysis via SDS-PAGE and identification of Tandem MS/MS afterwards, it deciphered that guanosine pentaphosphate synthetase, PNPase, tripeptidylamino peptidase primarily dealing with daptomycin synthesis. By applying Taguchi's L16 in culture optimization, the best yield was obtained from the medium with 60 g/L dextrin, 10 g/L dextrose, 1.0 g/L molasses, and 8 g/L yeast extract, respectively. The fed-batch fermentation, applied with feedback control of dextrin, stimulated the production up to 812 mg/L at 288 h. To our best knowledge, the daptomycin production in this study is significantly higher than that in previous studies and can make it more widely used in pharmaceutical industry.
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Affiliation(s)
- I-Son Ng
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China,
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