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Pogačar K, Grundner M, Žigon P, Coll A, Panevska A, Lukan T, Petek M, Razinger J, Gruden K, Sepčić K. Protein complexes from edible mushrooms as a sustainable potato protection against coleopteran pests. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:2518-2529. [PMID: 38733093 PMCID: PMC11331795 DOI: 10.1111/pbi.14365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/08/2024] [Accepted: 04/14/2024] [Indexed: 05/13/2024]
Abstract
Protein complexes from edible oyster mushrooms (Pleurotus sp.) composed of pleurotolysin A2 (PlyA2) and pleurotolysin B (PlyB) exert toxicity in feeding tests against Colorado potato beetle (CPB) larvae, acting through the interaction with insect-specific membrane sphingolipid. Here we present a new strategy for crop protection, based on in planta production of PlyA2/PlyB protein complexes, and we exemplify this strategy in construction of transgenic potato plants of cv Désirée. The transgenics in which PlyA2 was directed to the vacuole and PlyB to the endoplasmic reticulum are effectively protected from infestation by CPB larvae without impacting plant performance. These transgenic plants showed a pronounced effect on larval feeding rate, the larvae feeding on transgenic plants being on average five to six folds lighter than larvae feeding on controls. Further, only a fraction (11%-37%) of the larvae that fed on transgenic potato plants completed their life cycle and developed into adult beetles. Moreover, gene expression analysis of CPB larvae exposed to PlyA2/PlyB complexes revealed the response indicative of a general stress status of larvae and no evidence of possibility of developing resistance due to the functional inactivation of PlyA2/PlyB sphingolipid receptors.
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Affiliation(s)
- Karmen Pogačar
- Department of Biotechnology and Systems BiologyNational Institute of BiologyLjubljanaSlovenia
- Jožef Stefan International Postgraduate SchoolLjubljanaSlovenia
| | - Maja Grundner
- Department of Biology, Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia
| | - Primož Žigon
- Plant Protection DepartmentAgricultural Institute of SloveniaLjubljanaSlovenia
| | - Anna Coll
- Department of Biotechnology and Systems BiologyNational Institute of BiologyLjubljanaSlovenia
| | - Anastasija Panevska
- Department of Biology, Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia
| | - Tjaša Lukan
- Department of Biotechnology and Systems BiologyNational Institute of BiologyLjubljanaSlovenia
| | - Marko Petek
- Department of Biotechnology and Systems BiologyNational Institute of BiologyLjubljanaSlovenia
| | - Jaka Razinger
- Plant Protection DepartmentAgricultural Institute of SloveniaLjubljanaSlovenia
| | - Kristina Gruden
- Department of Biotechnology and Systems BiologyNational Institute of BiologyLjubljanaSlovenia
| | - Kristina Sepčić
- Department of Biology, Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia
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Ocampo CG, Lareu JF, Marin Viegas VS, Mangano S, Loos A, Steinkellner H, Petruccelli S. Vacuolar targeting of recombinant antibodies in Nicotiana benthamiana. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:2265-2275. [PMID: 27159528 PMCID: PMC5103231 DOI: 10.1111/pbi.12580] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/12/2016] [Accepted: 05/04/2016] [Indexed: 05/31/2023]
Abstract
Plant-based platforms are extensively used for the expression of recombinant proteins, including monoclonal antibodies. However, to harness the approach effectively and leverage it to its full potential, a better understanding of intracellular processes that affect protein properties is required. In this work, we examined vacuolar (vac) targeting and deposition of the monoclonal antibody (Ab) 14D9 in Nicotiana benthamiana leaves. Two distinct vacuolar targeting signals (KISIA and NIFRGF) were C-terminal fused to the heavy chain of 14D9 (vac-Abs) and compared with secreted and ER-retained variants (sec-Ab, ER-Ab, respectively). Accumulation of ER- and vac-Abs was 10- to 15-fold higher than sec-Ab. N-glycan profiling revealed the predominant presence of plant typical complex fucosylated and xylosylated GnGnXF structures on sec-Ab while vac-Abs carried mainly oligomannosidic (Man 7-9) next to GnGnXF forms. Paucimannosidic glycans (commonly assigned as typical vacuolar) were not detected. Confocal microscopy analysis using RFP fusions showed that sec-Ab-RFP localized in the apoplast while vac-Abs-RFP were exclusively detected in the central vacuole. The data suggest that vac-Abs reached the vacuole by two different pathways: direct transport from the ER bypassing the Golgi (Ab molecules containing Man structures) and trafficking through the Golgi (for Ab molecules containing complex N-glycans). Importantly, vac-Abs were correctly assembled and functionally active. Collectively, we show that the central vacuole is an appropriate compartment for the efficient production of Abs with appropriate post-translational modifications, but also point to a reconsideration of current concepts in plant glycan processing.
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Affiliation(s)
- Carolina Gabriela Ocampo
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Departamento de Ciencias BiológicasFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
| | - Jorge Fabricio Lareu
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Departamento de Ciencias BiológicasFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
| | - Vanesa Soledad Marin Viegas
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Departamento de Ciencias BiológicasFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
| | - Silvina Mangano
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Departamento de Ciencias BiológicasFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
- Present address: Fundación Instituto LeloirAv. Patricias Argentinas 435Buenos AiresArgentina
| | - Andreas Loos
- Department of Applied Genetics and Cell BiologyUniversity of Natural Resources and Life SciencesViennaAustria
- Present address: Aridis Pharmaceuticals Inc.5941 Optical CourtSan JoseCA95138USA
| | - Herta Steinkellner
- Department of Applied Genetics and Cell BiologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Silvana Petruccelli
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Departamento de Ciencias BiológicasFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
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Hegedus DD, Coutu C, Harrington M, Hope B, Gerbrandt K, Nikolov I. Multiple internal sorting determinants can contribute to the trafficking of cruciferin to protein storage vacuoles. PLANT MOLECULAR BIOLOGY 2015; 88:3-20. [PMID: 25702284 DOI: 10.1007/s11103-015-0297-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 02/13/2015] [Indexed: 06/04/2023]
Abstract
Trafficking of seed storage proteins to protein storage vacuoles is mediated by carboxy terminal and internal sorting determinants (ISDs). Protein modelling was used to identify candidate ISDs residing near surface-exposed regions in Arabidopsis thaliana cruciferin A (AtCruA). These were verified by AtCruA fusion to yellow fluorescent protein (YFP) and expression in developing embryos of A. thaliana. As the presence of endogenous cruciferin was found to mask the effects of weaker ISDs, experiments were conducted in a line that was devoid of cruciferin. In total, nine ISDs were discovered and a core determinant defined using a series of alanine scanning and deletion mutant variants. Coupling of functional data from AtCruA ISD-YFP fusions with statistical analysis of the physiochemical properties of analogous regions from several 11/12S globulins revealed that cruciferin ISDs likely adhere to the following rules: (1) ISDs are adjacent to or within hydrophilic, surface-exposed regions that serve to present them on the protein's surface; (2) ISDs generally have a hydrophobic character; (3) ISDs tend to have Leu or Ile residues at their core; (4) ISDs are approximately eight amino acids long with the physiochemical consensus [hydrophobic][preferably charged][small or hydrophobic, but not tiny][IL][polar, preferably charged][small, but not charged][hydrophobic, not charged, preferably not polar][hydrophobic, not tiny, preferably not polar]. Microscopic evidence is also presented for the presence of an interconnected protein storage vacuolar network in embryo cells, rather than discreet, individual vacuoles.
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Affiliation(s)
- Dwayne D Hegedus
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada,
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Marín Viegas VS, Acevedo GR, Bayardo MP, Chirdo FG, Petruccelli S. Production of the Main Celiac Disease Autoantigen by Transient Expression in Nicotiana benthamiana. FRONTIERS IN PLANT SCIENCE 2015; 6:1067. [PMID: 26648956 PMCID: PMC4664624 DOI: 10.3389/fpls.2015.01067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/16/2015] [Indexed: 05/09/2023]
Abstract
Celiac Disease (CD) is a gluten sensitive enteropathy that remains widely undiagnosed and implementation of massive screening tests is needed to reduce the long term complications associated to untreated CD. The main CD autoantigen, human tissue transglutaminase (TG2), is a challenge for the different expression systems available since its cross-linking activity affects cellular processes. Plant-based transient expression systems can be an alternative for the production of this protein. In this work, a transient expression system for the production of human TG2 in Nicotiana benthamiana leaves was optimized and reactivity of plant-produced TG2 in CD screening test was evaluated. First, a subcellular targeting strategy was tested. Cytosolic, secretory, endoplasmic reticulum (C-terminal SEKDEL fusion) and vacuolar (C-terminal KISIA fusion) TG2 versions were transiently expressed in leaves and recombinant protein yields were measured. ER-TG2 and vac-TG2 levels were 9- to 16-fold higher than their cytosolic and secretory counterparts. As second strategy, TG2 variants were co-expressed with a hydrophobic elastin-like polymer (ELP) construct encoding for 36 repeats of the pentapeptide VPGXG in which the guest residue X were V and F in ratio 8:1. Protein bodies (PB) were induced by the ELP, with a consequent two-fold-increase in accumulation of both ER-TG2 and vac-TG2. Subsequently, ER-TG2 and vac-TG2 were produced and purified using immobilized metal ion affinity chromatography. Plant purified ER-TG2 and vac-TG2 were recognized by three anti-TG2 monoclonal antibodies that bind different epitopes proving that plant-produced antigen has immunochemical characteristics similar to those of human TG2. Lastly, an ELISA was performed with sera of CD patients and healthy controls. Both vac-TG2 and ER-TG2 were positively recognized by IgA of CD patients while they were not recognized by serum from non-celiac controls. These results confirmed the usefulness of plant-produced TG2 to develop screening assays. In conclusion, the combination of subcellular sorting strategy with co-expression with a PB inducing construct was sufficient to increase TG2 protein yields. This type of approach could be extended to other problematic proteins, highlighting the advantages of plant based production platforms.
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Affiliation(s)
- Vanesa S. Marín Viegas
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) – Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP)La Plata, Argentina
| | - Gonzalo R. Acevedo
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Consejo Nacional de Investigaciones Científicas y TécnicasBuenos Aires, Argentina
| | - Mariela P. Bayardo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Consejo Nacional de Investigaciones Científicas y Técnicas – Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La PlataLa Plata, Argentina
| | - Fernando G. Chirdo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Consejo Nacional de Investigaciones Científicas y Técnicas – Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La PlataLa Plata, Argentina
| | - Silvana Petruccelli
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) – Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP)La Plata, Argentina
- *Correspondence: Silvana Petruccelli,
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Hegedus DD, Baron M, Labbe N, Coutu C, Lydiate D, Lui H, Rozwadowski K. A strategy for targeting recombinant proteins to protein storage vacuoles by fusion to Brassica napus napin in napin-depleted seeds. Protein Expr Purif 2014; 95:162-8. [PMID: 24394588 DOI: 10.1016/j.pep.2013.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/16/2013] [Accepted: 12/18/2013] [Indexed: 12/29/2022]
Abstract
Seeds are capable of accumulating high levels of seed storage proteins (SSP), as well as heterologous proteins under certain conditions. Arabidopsis thaliana was used to develop a strategy to deplete seeds of an endogenous SSP and then replenish them with the same protein fused to a heterologous protein. In several other studies, competition with endogenous SSP for space and metabolic resources was shown to affect the accumulation of recombinant proteins in seeds. We used RNAi to reduce the expression of the five napin genes and deplete the seeds of this SSP. Targeting a recombinant protein to a vacuole or structure within the seed where it can be protected from cytosolic proteases can also promote its accumulation. To achieve this, a synthetic Brassica napus napin gene (Bn napin) was designed that was both impervious to the A. thaliana napin (At napin) RNAi construct and permitted fusion to a heterologous protein, in this case green fluorescent protein (GFP). GFP was placed in several strategic locations within Bn napin with consideration to maintaining structure, processing sites and possible vacuolar targeting signals. In transgenic A. thaliana plants, GFP was strongly localized to the seed protein storage vacuole in all Bn napin fusion configurations tested, but not when expressed alone. This SSP depletion-replenishment strategy outlined here would be applicable to expression of recombinant proteins in industrial crops that generally have large repertoires of endogenous SSP genes.
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Affiliation(s)
- Dwayne D Hegedus
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada.
| | - Marcus Baron
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Natalie Labbe
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Cathy Coutu
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Derek Lydiate
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Helen Lui
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Kevin Rozwadowski
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
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Xiang L, Etxeberria E, den Ende W. Vacuolar protein sorting mechanisms in plants. FEBS J 2013; 280:979-93. [DOI: 10.1111/febs.12092] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 11/08/2012] [Accepted: 12/11/2012] [Indexed: 01/12/2023]
Affiliation(s)
- Li Xiang
- Laboratory of Molecular Plant Biology KU Leuven Belgium
| | - Ed Etxeberria
- Horticulture Department Citrus Research and Education Center University of Florida Lake Alfred FL USA
| | - Wim den Ende
- Laboratory of Molecular Plant Biology KU Leuven Belgium
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Rastogi A, Shukla S. Amaranth: A New Millennium Crop of Nutraceutical Values. Crit Rev Food Sci Nutr 2013; 53:109-25. [DOI: 10.1080/10408398.2010.517876] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Scabone CM, Frigerio L, Petruccelli S. A fluorescent reporter protein containing AtRMR1 domains is targeted to the storage and central vacuoles in Arabidopsis thaliana and tobacco leaf cells. PLANT CELL REPORTS 2011; 30:1823-33. [PMID: 21611741 DOI: 10.1007/s00299-011-1089-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 05/09/2011] [Indexed: 05/15/2023]
Abstract
To develop a new strategy to target recombinant proteins to the vacuolar storage system in transgenic plants, the ability of the transmembrane and cytosolic domains of Arabidopsis receptor homology-transmembrane-RING H2-1 (AtRMR1) was evaluated. A secreted version of RFP (secRFP) and a fusion of it to the transmembrane and cytosolic domains of AtRMR1 (RFP-TMCT) were produced and studied both in transient and stable expression assays. Transient expression in leaves of Nicotiana tabacum showed that secRFP is secreted to the apoplast while its fusion to TMCT of AtRMR1 is sufficient to prevent secretion of the reporter. In tobacco leaves, RFP-TMCT reporter showed an endoplasmic reticulum pattern in early expression stages while in late expression stages, it was found in the vacuolar lumen. For the first time, the role of TM and CT domains of AtRMR1 in stable expression in Arabidopsis thaliana is presented; the fusion of TMCT to secRFP is sufficient to sort RFP to the lumen of the central vacuoles in leaves and roots and to the lumen of PSV in cotyledons of mature embryos. In addition, biochemical studies performed in extract from transgenic plants showed that RFP-TMCT is an integral membrane protein. Full-length RFP-TMCT was also found in the vacuolar lumen, suggesting internalization into destination vacuole. Not colocalization of RFP-TMCT with tonoplast and plasma membrane markers were observed. This membrane vacuolar determinant sorting signal could be used for future application in molecular pharming as an alternative means to sort proteins of interest to vacuoles.
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Affiliation(s)
- Camila María Scabone
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), CCT-La Plata CONICET, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CC553, 1900, La Plata, Argentina
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Quiroga A, Martínez EN, Rogniaux H, Geairon A, Añón MC. Globulin-p and 11S-Globulin from Amaranthus Hypochondriacus: are Two Isoforms of the 11S-Globulin. Protein J 2009; 28:457-67. [DOI: 10.1007/s10930-009-9214-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chapter 3. New insights into plant vacuolar structure and dynamics. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2009; 277:103-35. [PMID: 19766968 DOI: 10.1016/s1937-6448(09)77003-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The plant vacuole is a multifunctional organelle and is essential for plant development and growth. The most distinctive feature of the plant vacuole is its size, which usually occupies over 80-90% of the cell volume in well-developed somatic cells, and is therefore highly involved in cell growth and plant body size. Recent progress in the visualization of the vacuole, together with developments in image analysis, has revealed the highly organized and complex morphology of the vacuole, as well as its dynamics. The plant vacuolar membrane (VM) forms not only a typically large vacuole but also other structures, such as tubular structures, transvacuolar strands, bulbs, and sheets. In higher plant cells, actin microfilaments are mainly located near the VM and are involved in vacuolar shape changes with the actin-myosin systems. Most recently, microtubule-dependent regulation of vacuolar structures in moss plant cells was reported, suggesting a diversity of mechanisms regulating vacuolar morphogenesis.
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