دورية أكاديمية
Trans-complementation of polyhedrin by a stably transformed Sf9 insect cell line allows occ- baculovirus occlusion and larval per os infectivity
| العنوان: | Trans-complementation of polyhedrin by a stably transformed Sf9 insect cell line allows occ- baculovirus occlusion and larval per os infectivity |
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| المؤلفون: | López, María Gabriela, Alfonso, Victoria, Carrillo, Elisa Cristina, Taboga, Oscar Alberto |
| بيانات النشر: | Elsevier Science |
| المجموعة: | CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: | Baculovirus, Gfp, Polyhedrin, Sf9, Stable Cell Lines, https://purl.org/becyt/ford/1.6Test, https://purl.org/becyt/ford/1Test |
| الوصف: | Oral infection of insect larvae with baculovirus is an advantageous methodology for producing high levels of recombinant proteins and for achieving plague control. However, many recombinant baculoviruses express a foreign protein in lieu of the polyhedrin and hence do not form occlusion bodies (occ-), resulting in extremely reduced per os infectivity in larvae. To overcome this limitation, stably transformed insect cell lines expressing polyhedrin capable of occluding occ- recombinant baculovirus by trans-complementation were developed to obtain oral inoculum for insect larvae infection. First, the optimum regulatory region of polyhedrin promoter was determined utilizing chloramphenicol acetyl transferase (CAT) as the reporter gene. After infection with occ- baculovirus, the higher expression levels of CAT were achieved when a region of 2735 bp that contained sequences known to have transcriptional enhancer functions were present upstream the polyhedrin coding sequence. This regulatory region was selected to drive polyhedrin expression in insect cell lines. Transfection of Sf9 cells with plasmid carrying polyhedrin gene and stable cell lines established by selection with blasticidin showed polyhedrin expression and, moreover, crystalline polyhedron-like structures were visualized by optic microscopy. Oral infectivity was demonstrated by fluorescence detection in Rachiplusia nu larvae infected with occluded AcGFPpolh- baculovirus obtained using the system presented here. © 2009 Elsevier B.V. All rights reserved. ; Fil: López, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: Alfonso, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: Carrillo, Elisa Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas; Argentina ; Fil: Taboga, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0168-1656 |
| العلاقة: | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168165609004842Test; http://hdl.handle.net/11336/53645Test; López, María Gabriela; Alfonso, Victoria; Carrillo, Elisa Cristina; Taboga, Oscar Alberto; Trans-complementation of polyhedrin by a stably transformed Sf9 insect cell line allows occ- baculovirus occlusion and larval per os infectivity; Elsevier Science; Journal of Biotechnology; 145; 2; 1-2010; 199-205; CONICET Digital; CONICET |
| الإتاحة: | https://doi.org/10.1016/j.jbiotec.2009.10.015Test http://hdl.handle.net/11336/53645Test |
| حقوق: | info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/arTest/ |
| رقم الانضمام: | edsbas.1329F8B |
| قاعدة البيانات: | BASE |
| تدمد: | 01681656 |
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