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López MG, López CA, Gravisaco MJ, Alfonso V, Taboga O. Comparison between different conditions for the incorporation of foreign proteins into Autographa californica multiple polyhedrovirus polyhedra for biotechnological purposes. Arch Virol 2024; 169:108. [PMID: 38658418 DOI: 10.1007/s00705-024-06015-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/02/2024] [Indexed: 04/26/2024]
Abstract
The occlusion bodies of Autographa californica multiple nucleopolyhedrovirus are proteinaceous formations with significant biotechnological potential owing to their capacity to integrate foreign proteins through fusion with polyhedrin, their primary component. However, the strategy for successful heterologous protein inclusion still requires further refinement. In this study, we conducted a comparative assessment of various conditions to achieve the embedding of recombinant proteins within polyhedra. Two baculoviruses were constructed: AcPHGFP (polh+), with GFP as a fusion to wild type (wt) polyhedrin and AcΔPHGFP (polh+), with GFP fused to a fragment corresponding to amino acids 19 to 110 of polyhedrin. These baculoviruses were evaluated by infecting Sf9 cells and stably transformed Sf9, Sf9POLH, and Sf9POLHE44G cells. The stably transformed cells contributed another copy of wt or a mutant polyhedrin, respectively. Polyhedra of each type were isolated and characterized by classical methods. The fusion PHGFP showed more-efficient incorporation into polyhedra than ΔPHGFP in the three cell lines assayed. However, ΔPHGFP polyhedron yields were higher than those of PHGFP in Sf9 and Sf9POLH cells. Based on an integral analysis of the studied parameters, it can be concluded that, except for the AcΔPHGFP/Sf9POLHE44G combination, deficiencies in one factor can be offset by improved performance by another. The combinations AcPHGFP/Sf9POLHE44G and AcΔPHGFP/Sf9POLH stand out due to their high level of incorporation and the large number of recombinant polyhedra produced, respectively. Consequently, the choice between these approaches becomes dependent on the intended application.
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Affiliation(s)
- María Gabriela López
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto S/N, B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - Cinthia Ayelén López
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto S/N, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - María José Gravisaco
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto S/N, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Victoria Alfonso
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto S/N, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Oscar Taboga
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto S/N, B1686IGC, Hurlingham, Buenos Aires, Argentina.
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Liang Z, Xue R, Zhang X, Cao M, Sun S, Zhang Y, Zhu M, Zhang Z, Dai K, Pan J, Cao G, Wang C, Hu X, Gong C. β-Arrestin 2 acts an adaptor protein that facilitates viral replication in silkworm. Int J Biol Macromol 2022; 208:1009-1018. [PMID: 35381288 DOI: 10.1016/j.ijbiomac.2022.03.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 07/24/2021] [Accepted: 03/31/2022] [Indexed: 11/19/2022]
Abstract
β-Arrestin 2 is known to be a widely distributed adaptor protein in mammals but its function has never been reported in Lepidoptera insects. Herein, the β-Arrestin 2 (BmArrestin 2) gene from silkworm was cloned and characterized. The spatiotemporal expression level of BmArrestin 2 was highest in the gonads at the 3rd day of 5th instar, whereas the highest and lowest abundance of BmArrestin 2 were identified in the tracheal and testis, respectively. BmArrestin 2 is mainly distributed in the cytoplasm. Furthermore, in BmN cells,overexpression of BmArrestin 2 promoted Bombyx mori nucleopolyhedrovirus (BmNPV) and B. mori cytoplasmic polyhedrosis virus (BmCPV) replication as the increment of the concentration of plasmid transfection, whereas silencing the gene with specific siRNA inhibited viral replication. Replication of BmNPV and BmCPV also was weakened using BmArrestin 2 antiserum as the increment of the concentration. Immunofluorescent staining revealed the invasion of recombinant BmNPV or BmCPV was decreased after blocking endogenous BmArrestin 2. On the other hand, BmArrestin 2 co-localizes with recombinant BmNPV and BmCPV virions in BmN cells. These results suggest that BmArrestin 2 may represent a novel target for antiviral strategies, as it is an adaptor protein that plays a key role in virus replication.
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Affiliation(s)
- Zi Liang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Renyu Xue
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Xing Zhang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Manman Cao
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Sufei Sun
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Yunshan Zhang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Min Zhu
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Ziyao Zhang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Kun Dai
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Jun Pan
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China
| | - Guangli Cao
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China; Institute of Agricultural Biotechnology and Ecological Research, Soochow University, Suzhou 215123, China
| | - Chonglong Wang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China; Institute of Agricultural Biotechnology and Ecological Research, Soochow University, Suzhou 215123, China
| | - Xiaolong Hu
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China; Institute of Agricultural Biotechnology and Ecological Research, Soochow University, Suzhou 215123, China.
| | - Chengliang Gong
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, China; Institute of Agricultural Biotechnology and Ecological Research, Soochow University, Suzhou 215123, China.
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López MG, Diez M, Alfonso V, Taboga O. Biotechnological applications of occlusion bodies of Baculoviruses. Appl Microbiol Biotechnol 2018; 102:6765-6774. [DOI: 10.1007/s00253-018-9130-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/21/2018] [Accepted: 05/22/2018] [Indexed: 11/29/2022]
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Sampieri A, Luz-Madrigal A, Zepeda J, Vaca L. Identification of fragments from Autographa californica polyhedrin protein essential for self-aggregation and exogenous protein incorporation. BMC BIOCHEMISTRY 2015; 16:5. [PMID: 25648249 PMCID: PMC4320575 DOI: 10.1186/s12858-015-0034-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 01/15/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Baculoviruses are widely used for the production of recombinant proteins, biopesticides and as gene delivery systems. One of the viral forms called polyhedra has been recently exploited as a scaffold system to incorporate or encapsulate foreign proteins or peptide fragments. However, an efficient strategy for foreign protein incorporation has not been thoroughly studied. RESULTS Based on the crystal structure of polyhedrin, we conducted an in silico analysis of the baculovirus Autographa californica nucleopolyhedrovirus (AcMNPV) polyhedrin protein to select the minimum fragments of polyhedrin that could be incorporated into polyhedra. Using confocal and transmission electron microscopy we analyzed the expression and cellular localization of the different polyhedrin fragments fused to the green fluorescent protein (EGFP) used as reporter. The amino fragment 1-110 contains two repeats formed each of two β sheets followed by a α helix (amino acids 1-58 and 58-110) that are important for the formation and stability of polyhedra. These fragments 1-58, 58-110 and 1-110 could be incorporated into polyhedra. However, only fragments 1-110 and 58-110 can self-aggregate. CONCLUSIONS These results demonstrate that 58-110 is the minimum fragment that contributes to the assembly of the recombinant polyhedra via self-aggregation. This is the minimum sequence that can be used to efficiently incorporate foreign proteins into polyhedra.
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Affiliation(s)
- Alicia Sampieri
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, DF, 04510, México.
| | - Agustín Luz-Madrigal
- Department of Biology and Center for Tissue Regeneration and Engineering, University of Dayton (TREND), Dayton, OH, USA. .,Department of Biology, Miami University, Oxford, OH, USA.
| | - Jesus Zepeda
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, DF, 04510, México.
| | - Luis Vaca
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, DF, 04510, México.
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Chen L, Xiang X, Yang R, Hu X, Cao C, Malik FA, Wu X. Immobilization of foreign protein in BmNPV polyhedra by fusion expression with partial polyhedrin fragments. J Virol Methods 2013; 194:185-9. [DOI: 10.1016/j.jviromet.2013.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 08/13/2013] [Accepted: 08/21/2013] [Indexed: 10/26/2022]
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