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Aragão MM, Alvarez MA, Caiafa L, Santos MO. Nicotiana hairy roots for recombinant protein expression, where to start? A systematic review. Mol Biol Rep 2023; 50:4587-4604. [PMID: 36917368 DOI: 10.1007/s11033-023-08360-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/23/2023] [Indexed: 03/16/2023]
Abstract
BACKGROUND Hairy roots are a plant-tissue culture raised by Rhizobium rhizogenes infection (formerly known as Agrobacterium rhizogenes). Nowadays, these roots have been gaining more space in biotechnology due to their benefits for the recombinant expression of valuables proteins; it includes simplified downstream processing, protein rhizosecretion, and scalability in bioreactors. However, due to methodological inconsistency among reports, the tissue platform is still a promising technology. METHODS AND RESULTS In the current paper, we propose the first step to overcome this issue through a systematic review of studies that employ Nicotiana hairy roots for recombinant expression. We conducted a qualitative synthesis of 36 out of 387 publications initially selected. Following the PRISMA procedure, all papers were assessed for exclusion and inclusion criteria. Multiple points of root culture were explored, including transformation methods, root growth curve, external additives, and scale-up with bioreactors to determine which approaches performed best and what is still required to achieve a robust protocol. CONCLUSION The information presented here may help researchers who want to work with hairy roots in their laboratories trace a successful path to appraisal the literature status.
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Affiliation(s)
- M M Aragão
- Departamento de Biologia, ICB - Universidade Federal de Juiz de Fora,, R. José Lourenço Kelmer, S/N, Juiz de Fora, MG, Brazil
| | - M A Alvarez
- CONICET - Universidade Maimónides (CEBBAD), Hidalgo 775, Lab 603, Buenos Aires, Argentina
| | - L Caiafa
- Programa de Pós-Graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, R. José Lourenço Kelmer, S/N, Juiz de Fora, MG, Brazil
| | - M O Santos
- Departamento de Biologia, ICB - Universidade Federal de Juiz de Fora,, R. José Lourenço Kelmer, S/N, Juiz de Fora, MG, Brazil.
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Bahramnejad B, Naji M, Bose R, Jha S. A critical review on use of Agrobacterium rhizogenes and their associated binary vectors for plant transformation. Biotechnol Adv 2019; 37:107405. [PMID: 31185263 DOI: 10.1016/j.biotechadv.2019.06.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 12/21/2022]
Abstract
Agrobacterium rhizogenes, along with A. tumefaciens, has been used to affect genetic transformation in plants for many years. Detailed studies conducted in the past have uncovered the basic mechanism of foreign gene transfer and the implication of Ri/Ti plasmids in this process. A number of reviews exist describing the usage of binary vectors with A. tumefaciens, but no comprehensive account of the numerous binary vectors employed with A. rhizogenes and their successful applications has been published till date. In this review, we recollect a brief history of development of Ri-plasmid/Ri-T-DNA based binary vectors systems and their successful implementation with A. rhizogenes for different applications. The modification of native Ri plasmid to introduce foreign genes followed by development of binary vector using Ri plasmid and how it facilitated rapid and feasible genetic manipulation, earlier impossible with native Ri plasmid, have been discussed. An important milestone was the development of inducible plant expressing promoter systems which made expression of toxic genes in plant systems possible. The successful application of binary vectors in conjunction with A. rhizogenes in gene silencing and genome editing studies which are relatively newer developments, demonstrating the amenability and adaptability of hairy roots systems to make possible studying previously intractable research areas have been summarized in the present review.
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Affiliation(s)
- Bahman Bahramnejad
- Department of Agronomy and Plant Breeding, University of Kurdistan, Sanandaj, Kurdistan 66177-15175, Iran.
| | - Mohammad Naji
- Department of Agronomy and Plant Breeding, University of Kurdistan, Sanandaj, Kurdistan 66177-15175, Iran
| | - Rahul Bose
- Department of Genetics, University of Calcutta, Kolkata 700019, India
| | - Sumita Jha
- Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India
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3
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Giorgi C, Franconi R, Rybicki EP. Human papillomavirus vaccines in plants. Expert Rev Vaccines 2014; 9:913-24. [DOI: 10.1586/erv.10.84] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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López EG, Ramírez EGR, Gúzman OG, Calva GC, Ariza-Castolo A, Pérez-Vargas J, Rodríguez HGM. MALDI-TOF characterization of hGH1 produced by hairy root cultures of Brassica oleracea var. italica grown in an airlift with mesh bioreactor. Biotechnol Prog 2013; 30:161-71. [PMID: 24124083 DOI: 10.1002/btpr.1829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 09/26/2013] [Indexed: 01/01/2023]
Abstract
Expression systems based on plant cells, tissue, and organ cultures have been investigated as an alternative for production of human therapeutic proteins in bioreactors. In this work, hairy root cultures of Brassica oleracea var. italica (broccoli) were established in an airlift with mesh bioreactor to produce isoform 1 of the human growth hormone (hGH1) as a model therapeutic protein. The hGH1 cDNA was cloned into the pCAMBIA1105.1 binary vector to induce hairy roots in hypocotyls of broccoli plantlets via Agrobacterium rhizogenes. Most of the infected plantlets (90%) developed hairy roots when inoculated before the appearance of true leaves, and keeping the emerging roots attached to hypocotyl explants during transfer to solid Schenk and Hildebrandt medium. The incorporation of the cDNA into the hairy root genome was confirmed by PCR amplification from genomic DNA. The expression and structure of the transgenic hGH1 was assessed by ELISA, western blot, and MALDITOF-MS analysis of the purified protein extracted from the biomass of hairy roots cultivated in bioreactor for 24 days. Production of hGH1 was 5.1 ± 0.42 µg/g dry weight (DW) for flask cultures, and 7.8 ± 0.3 µg/g DW for bioreactor, with productivity of 0.68 ± 0.05 and 1.5 ± 0.06 µg/g DW*days, respectively, indicating that the production of hGH1 was not affected by the growth rate, but might be affected by the culture system. These results demonstrate that hairy root cultures of broccoli have potential as an alternative expression system for production of hGH1, and might also be useful for production of other therapeutic proteins.
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Affiliation(s)
- Edgar García López
- Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional 2508, Colonia San Pedro Zacatenco, México Distrito Federal, CP, 07360
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Alonso J, Górzny M, Bittner A. The physics of tobacco mosaic virus and virus-based devices in biotechnology. Trends Biotechnol 2013; 31:530-8. [DOI: 10.1016/j.tibtech.2013.05.013] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/23/2013] [Accepted: 05/31/2013] [Indexed: 12/16/2022]
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Skarjinskaia M, Ruby K, Araujo A, Taylor K, Gopalasamy-Raju V, Musiychuk K, Chichester JA, Palmer GA, de la Rosa P, Mett V, Ugulava N, Streatfield SJ, Yusibov V. Hairy Roots as a Vaccine Production and Delivery System. BIOTECHNOLOGY OF HAIRY ROOT SYSTEMS 2013; 134:115-34. [DOI: 10.1007/10_2013_184] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Georgiev MI, Agostini E, Ludwig-Müller J, Xu J. Genetically transformed roots: from plant disease to biotechnological resource. Trends Biotechnol 2012; 30:528-37. [PMID: 22906523 DOI: 10.1016/j.tibtech.2012.07.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 06/27/2012] [Accepted: 07/02/2012] [Indexed: 12/24/2022]
Abstract
Hairy root syndrome is a disease that is induced by Agrobacterium rhizogenes infection and characterized by a proliferation of excessively branching roots. However, in the past 30 years A. rhizogenes-mediated transformation has also provided a valuable platform for studying biosynthesis pathways in plants. Furthermore, the genetically transformed root cultures are becoming increasingly attractive, cost-effective options for mass-producing desired plant metabolites and expressing foreign proteins. Numerous proof-of-concept studies have demonstrated the feasibility of scaling up hairy-root-based processes while maintaining their biosynthetic potential. Recently, hairy roots have also shown immense potential for applications in phytoremediation, that is, plant-based decontamination of polluted environments. This review highlights recent progress and limitations in the field, and outlines future perspectives for the industrial exploitation of hairy roots.
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Affiliation(s)
- Milen I Georgiev
- Department of Applied Biotechnologies, Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Boulevard, 4000 Plovdiv, Bulgaria.
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Larsen JS, Curtis WR. RNA viral vectors for improved Agrobacterium-mediated transient expression of heterologous proteins in Nicotiana benthamiana cell suspensions and hairy roots. BMC Biotechnol 2012; 12:21. [PMID: 22559055 PMCID: PMC3403893 DOI: 10.1186/1472-6750-12-21] [Citation(s) in RCA: 30] [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: 01/16/2012] [Accepted: 05/06/2012] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Plant cell suspensions and hairy root cultures represent scalable protein expression platforms. Low protein product titers have thus far limited the application of transient protein expression in these hosts. The objective of this work was to overcome this limitation by harnessing A. tumefaciens to deliver replicating and non-replicating RNA viral vectors in plant tissue co-cultures. RESULTS Replicating vectors derived from Potato virus X (PVX) and Tobacco rattle virus (TRV) were modified to contain the reporter gene β-glucuronidase (GUS) with a plant intron to prevent bacterial expression. In cell suspensions, a minimal PVX vector retaining only the viral RNA polymerase gene yielded 6.6-fold more GUS than an analogous full-length PVX vector. Transient co-expression of the minimal PVX vector with P19 of Tomato bushy stunt virus or HC-Pro of Tobacco etch virus to suppress post-transcriptional gene silencing increased GUS expression by 44 and 83%, respectively. A non-replicating vector containing a leader sequence from Cowpea mosaic virus (CPMV-HT) modified for enhanced translation led to 70% higher transient GUS expression than a control treatment. In hairy roots, a TRV vector capable of systemic movement increased GUS accumulation by 150-fold relative to the analogous PVX vector. Histochemical staining for GUS in TRV-infected hairy roots revealed the capacity for achieving even higher productivity per unit biomass. CONCLUSIONS For the first time, replicating PVX vectors and a non-replicating CPMV-HT vector were successfully applied toward transient heterologous protein expression in cell suspensions. A replicating TRV vector achieved transient GUS expression levels in hairy roots more than an order of magnitude higher than the highest level previously reported with a viral vector delivered by A. tumefaciens.
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Affiliation(s)
- Jeffrey S Larsen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - Wayne R Curtis
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
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Abstract
Plant genetic engineering has become one of the most important molecular tools in the modern molecular breeding of crops. Over the last decade, significant progress has been made in the development of new and efficient transformation methods in plants. Despite a variety of available DNA delivery methods, Agrobacterium- and biolistic-mediated transformation remain the two predominantly employed approaches. In particular, progress in Agrobacterium-mediated transformation of cereals and other recalcitrant dicot species has been quite remarkable. In the meantime, other transgenic-enabling technologies have emerged, including generation of marker-free transgenics, gene targeting, and chromosomal engineering. Although transformation of some plant species or elite germplasm remains a challenge, further advancement in transformation technology is expected because the mechanisms of governing the regeneration and transformation processes are now better understood and are being creatively applied to designing improved transformation methods or to developing new enabling technologies.
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Komarova TV, Baschieri S, Donini M, Marusic C, Benvenuto E, Dorokhov YL. Transient expression systems for plant-derived biopharmaceuticals. Expert Rev Vaccines 2010; 9:859-76. [PMID: 20673010 DOI: 10.1586/erv.10.85] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In the molecular farming area, transient expression approaches for pharmaceutical proteins production, mainly recombinant monoclonal antibodies and vaccines, were developed almost two decades ago and, to date, these systems basically depend on Agrobacterium-mediated delivery and virus expression machinery. We survey here the current state-of-the-art of this research field. Several vectors have been designed on the basis of DNA- and RNA-based plant virus genomes and viral vectors are used both as single- and multicomponent expression systems in different combinations depending on the protein of interest. The obvious advantages of these systems are ease of manipulation, speed, low cost and high yield of proteins. In addition, Agrobacterium-mediated expression also allows the production in plants of complex proteins assembled from subunits. Currently, the transient expression methods are preferential over any other transgenic system for the exploitation of large and unrestricted numbers of plants in a contained environment. By designing optimal constructs and related means of delivery into plant cells, the overall technology plan considers scenarios that envisage high yield of bioproducts and ease in monitoring the whole spectrum of upstream production, before entering good manufacturing practice facilities. In this way, plant-derived bioproducts show promise of high competitiveness towards classical eukaryotic cell factory systems.
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Affiliation(s)
- Tatiana V Komarova
- N.I. Vavilov Institute of General Genetics, Russian Academy of Science and A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Russia
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Franconi R, Demurtas OC, Massa S. Plant-derived vaccines and other therapeutics produced in contained systems. Expert Rev Vaccines 2010; 9:877-92. [PMID: 20673011 DOI: 10.1586/erv.10.91] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
The use of contained plant systems for the production of biopharmaceuticals represents a powerful alternative to current methods, combining the benefits of whole-plant systems and cell cultures. In vitro contained production systems include plant cell suspensions, hairy root cultures, novel plants grown in contained conditions and microalgae. These systems show intrinsic advantages, such as control over growth conditions, production in compliance with good manufacturing practice and avoidance of political resistance to the release of genetically modified field crops. At present, one of the two plant-produced vaccine-related products that have gone all the way through production and regulatory hurdles derives from tobacco cell suspensions, and the second is a human therapeutic enzyme, which is expected to reach commercial development soon and derives from carrot suspension cells. In the future, several other products from contained systems are expected to reach the clinical trial stage.
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Affiliation(s)
- Rosella Franconi
- Italian National Agency for New Technologies, UTBIORAD, CR Casaccia, Rome, Italy.
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Rybicki EP. Plant-made vaccines for humans and animals. PLANT BIOTECHNOLOGY JOURNAL 2010; 8:620-37. [PMID: 20233333 PMCID: PMC7167690 DOI: 10.1111/j.1467-7652.2010.00507.x] [Citation(s) in RCA: 187] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 11/30/2009] [Accepted: 12/02/2009] [Indexed: 05/17/2023]
Abstract
The concept of using plants to produce high-value pharmaceuticals such as vaccines is 20 years old this year and is only now on the brink of realisation as an established technology. The original reliance on transgenic plants has largely given way to transient expression; proofs of concept for human and animal vaccines and of efficacy for animal vaccines have been established; several plant-produced vaccines have been through Phase I clinical trials in humans and more are scheduled; regulatory requirements are more clear than ever, and more facilities exist for manufacture of clinic-grade materials. The original concept of cheap edible vaccines has given way to a realisation that formulated products are required, which may well be injectable. The technology has proven its worth as a means of cheap, easily scalable production of materials: it now needs to find its niche in competition with established technologies. The realised achievements in the field as well as promising new developments will be reviewed, such as rapid-response vaccines for emerging viruses with pandemic potential and bioterror agents.
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Affiliation(s)
- Edward P Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa. ed.rybicki@ uct.ac.za
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Hirai T, Sato M, Toyooka K, Sun HJ, Yano M, Ezura H. Miraculin, a taste-modifying protein is secreted into intercellular spaces in plant cells. JOURNAL OF PLANT PHYSIOLOGY 2010; 167:209-15. [PMID: 19712996 DOI: 10.1016/j.jplph.2009.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/04/2009] [Accepted: 08/04/2009] [Indexed: 05/04/2023]
Abstract
A taste-modifying protein, miraculin, is highly accumulated in ripe fruit of miracle fruit (Richadella dulcifica) and the content can reach up to 10% of the total soluble protein in these fruits. Although speculated for decades that miraculin is secreted into intercellular spaces in miracle fruit, no evidence exists of its cellular localization. To study the cellular localization of miraculin in plant cells, using miracle fruit and transgenic tomato that constitutively express miraculin, immunoelectron microscopy, imaging GFP fusion proteins, and immunological detection of secreted proteins in culture medium of transgenic tomato were carried out. Immunoelectron microscopy showed the specific accumulation of miraculin in the intercellular layers of both miracle fruit and transgenic tomato. Imaging GFP fusion protein demonstrated that the miraculin-GFP fusion protein was accumulated in the intercellular spaces of tomato epidermal cells. Immunological detection of secreted proteins in culture medium of transgenic tomato indicated that miraculin was secreted from the roots of transgenic tomato expressing miraculin. This study firstly showed the evidences of the intercellular localization of miraculin, and provided a new insight of biological roles of miraculin in plants.
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Affiliation(s)
- Tadayoshi Hirai
- Gene Research Center, Graduate School of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan
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Shih SMH, Doran PM. In vitro propagation of plant virus using different forms of plant tissue culture and modes of culture operation. J Biotechnol 2009; 143:198-206. [PMID: 19616595 DOI: 10.1016/j.jbiotec.2009.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Revised: 07/05/2009] [Accepted: 07/10/2009] [Indexed: 10/20/2022]
Abstract
Plant virus accumulation was investigated in vitro using three different forms of plant tissue culture. Suspended cells, hairy roots and shooty teratomas of Nicotiana benthamiana were infected with tobacco mosaic virus (TMV) using the same initial virus:biomass ratio. Viral infection did not affect tissue growth or morphology in any of the three culture systems. Average maximum virus concentrations in hairy roots and shooty teratomas were similar and about an order of magnitude higher than in suspended cells. Hairy roots were considered the preferred host because of their morphological stability in liquid medium and relative ease of culture. The average maximum virus concentration in the hairy roots was 0.82+/-0.14 mg g(-1) dry weight; viral coat protein represented a maximum of approximately 6% of total soluble protein in the biomass. Virus accumulation in hairy roots was investigated further using different modes of semi-continuous culture operation aimed at prolonging the root growth phase and providing nutrient supplementation; however, virus concentrations in the roots were not enhanced compared with simple batch culture. The relative infectivity of virus in the biomass declined by 80-90% during all the cultures tested, irrespective of the form of plant tissue used or mode of culture operation. Hairy root cultures inoculated with a transgenic TMV-based vector in batch culture accumulated green fluorescent protein (GFP); however, maximum GFP concentrations in the biomass were relatively low at 39 microg g(-1) dry weight, probably due to genetic instability of the vector. This work highlights the advantages of using hairy roots for in vitro propagation of TMV compared with shooty teratomas and suspended plant cells, and demonstrates that batch root culture is more effective than semi-continuous operations for accumulation of high virus concentrations in the biomass.
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Affiliation(s)
- Sharon M-H Shih
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
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Foreign protein production using plant cell and organ cultures: Advantages and limitations. Biotechnol Adv 2009; 27:1036-1042. [PMID: 19463933 DOI: 10.1016/j.biotechadv.2009.05.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Plants and plant tissue cultures are used as host systems for expression of foreign proteins including antibodies, vaccines and other therapeutic agents. Recombinant or stably transformed plants and plant cell cultures have been applied for foreign protein production for about 20 years. Because the product concentration achieved exerts a major influence on process economics, considerable efforts have been made by commercial and academic research groups to improve foreign protein expression levels. However, post-synthesis product losses due to protease activity within plant tissues and/or extracellular protein adsorption in plant cell cultures can negate the benefits of molecular or genetic enhancement of protein expression. Transient expression of foreign proteins using plant viral vectors is also a practical approach for producing foreign proteins in plants. Adaptation of this technology is required to allow infection and propagation of engineered viruses in plant tissue cultures for transient protein expression in vitro.
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