Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant

Context: The co-delivery of adjuvant and antigen has shown to be more effective for targeting the immune response than antigen alone. Therefore, designing an efficient bicistronic system is more assuring for production of both elements in the same tobacco cells as a plant model system. Objective: Co...

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Autores principales: Sara Mohammadzadeh, Hamideh Ofoghi, Mina Ebrahimi-Rad, Parastoo Ehsani
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Publicado: Taylor & Francis Group 2019
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spelling oai:doaj.org-article:da7de49ad7d94246bcd95b2d196746182021-11-17T14:21:56ZConstruction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant1388-02091744-511610.1080/13880209.2019.1662458https://doaj.org/article/da7de49ad7d94246bcd95b2d196746182019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/13880209.2019.1662458https://doaj.org/toc/1388-0209https://doaj.org/toc/1744-5116Context: The co-delivery of adjuvant and antigen has shown to be more effective for targeting the immune response than antigen alone. Therefore, designing an efficient bicistronic system is more assuring for production of both elements in the same tobacco cells as a plant model system. Objective: Comparing the efficient transient co-expression of hepatitis B surface antigen (HBsAg) and mouse granulocyte macrophage colony stimulating factor (mGM-CSF) in tobacco leaves by designing either mono or bicistronic cassettes. Materials and methods: Four expression cassettes containing tobacco etch virus (TEV) leader sequence were constructed with and without above genes in different orders. The cassettes were transferred into tobacco, Nicotiana tabacum L. (Solanaceae), leaves by agroinfiltration technique. The expression levels were compared using ELISA and western blotting and bioactivity of cytokine was assessed by in vitro proliferation of mouse GM-CSF-responsive progenitor cells. Results: Agroinfiltrated leaves contained recombinant HBsAg protein at 20–50 ng/mg and mGM-CSF at 0.2–4 ng/mg in both nonglycosylated and glycosylated forms. The highest expression obtained in HBsAg and mGM-CSF monocistronic co-agroinfiltrated leaves. The expression of mGM-CSF was 1.1 and 0.2 ng/mg in two different orders of bicistronic cassettes. The growth frequency of GM progenitors was approximately 1/187 cells for standard rGM-CSF and 3.2 times less activity for the plant produced. Discussion and conclusions: The recombinant mGM-CSF was produced less in bicistronic cassette than other forms; however, co-presenting of both vaccine candidate and adjuvant is confirmed and could be promising for amelioration of plant expression system as a means for vaccine production.Sara MohammadzadehHamideh OfoghiMina Ebrahimi-RadParastoo EhsaniTaylor & Francis Grouparticlevaccineplant-producedgm-csfhbsagco-expressionTherapeutics. PharmacologyRM1-950ENPharmaceutical Biology, Vol 57, Iss 1, Pp 669-675 (2019)
institution DOAJ
collection DOAJ
language EN
topic vaccine
plant-produced
gm-csf
hbsag
co-expression
Therapeutics. Pharmacology
RM1-950
spellingShingle vaccine
plant-produced
gm-csf
hbsag
co-expression
Therapeutics. Pharmacology
RM1-950
Sara Mohammadzadeh
Hamideh Ofoghi
Mina Ebrahimi-Rad
Parastoo Ehsani
Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
description Context: The co-delivery of adjuvant and antigen has shown to be more effective for targeting the immune response than antigen alone. Therefore, designing an efficient bicistronic system is more assuring for production of both elements in the same tobacco cells as a plant model system. Objective: Comparing the efficient transient co-expression of hepatitis B surface antigen (HBsAg) and mouse granulocyte macrophage colony stimulating factor (mGM-CSF) in tobacco leaves by designing either mono or bicistronic cassettes. Materials and methods: Four expression cassettes containing tobacco etch virus (TEV) leader sequence were constructed with and without above genes in different orders. The cassettes were transferred into tobacco, Nicotiana tabacum L. (Solanaceae), leaves by agroinfiltration technique. The expression levels were compared using ELISA and western blotting and bioactivity of cytokine was assessed by in vitro proliferation of mouse GM-CSF-responsive progenitor cells. Results: Agroinfiltrated leaves contained recombinant HBsAg protein at 20–50 ng/mg and mGM-CSF at 0.2–4 ng/mg in both nonglycosylated and glycosylated forms. The highest expression obtained in HBsAg and mGM-CSF monocistronic co-agroinfiltrated leaves. The expression of mGM-CSF was 1.1 and 0.2 ng/mg in two different orders of bicistronic cassettes. The growth frequency of GM progenitors was approximately 1/187 cells for standard rGM-CSF and 3.2 times less activity for the plant produced. Discussion and conclusions: The recombinant mGM-CSF was produced less in bicistronic cassette than other forms; however, co-presenting of both vaccine candidate and adjuvant is confirmed and could be promising for amelioration of plant expression system as a means for vaccine production.
format article
author Sara Mohammadzadeh
Hamideh Ofoghi
Mina Ebrahimi-Rad
Parastoo Ehsani
author_facet Sara Mohammadzadeh
Hamideh Ofoghi
Mina Ebrahimi-Rad
Parastoo Ehsani
author_sort Sara Mohammadzadeh
title Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
title_short Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
title_full Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
title_fullStr Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
title_full_unstemmed Construction of bicistronic cassette for co-expressing hepatitis B surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
title_sort construction of bicistronic cassette for co-expressing hepatitis b surface antigen and mouse granulocyte-macrophage colony stimulating factor as adjuvant in tobacco plant
publisher Taylor & Francis Group
publishDate 2019
url https://doaj.org/article/da7de49ad7d94246bcd95b2d19674618
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AT hamidehofoghi constructionofbicistroniccassetteforcoexpressinghepatitisbsurfaceantigenandmousegranulocytemacrophagecolonystimulatingfactorasadjuvantintobaccoplant
AT minaebrahimirad constructionofbicistroniccassetteforcoexpressinghepatitisbsurfaceantigenandmousegranulocytemacrophagecolonystimulatingfactorasadjuvantintobaccoplant
AT parastooehsani constructionofbicistroniccassetteforcoexpressinghepatitisbsurfaceantigenandmousegranulocytemacrophagecolonystimulatingfactorasadjuvantintobaccoplant
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