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  1. Article: The Application of the Gibson Assembly Method in the Production of Two pKLS3 Vector-Derived Infectious Clones of Foot-and-Mouth Disease Virus.

    Semkum, Ploypailin / Thangthamniyom, Nattarat / Chankeeree, Penpitcha / Keawborisuth, Challika / Theerawatanasirikul, Sirin / Lekcharoensuk, Porntippa

    Vaccines

    2023  Volume 11, Issue 6

    Abstract: The construction of a full-length infectious clone, essential for molecular virological study and vaccine development, is quite a challenge for viruses with long genomes or possessing complex nucleotide sequence structures. Herein, we have constructed ... ...

    Abstract The construction of a full-length infectious clone, essential for molecular virological study and vaccine development, is quite a challenge for viruses with long genomes or possessing complex nucleotide sequence structures. Herein, we have constructed infectious clones of foot-and-mouth disease virus (FMDV) types O and A by joining each viral coding region with our pKLS3 vector in a single isothermal reaction using Gibson Assembly (GA). pKLS3 is a 4.3-kb FMDV minigenome. To achieve optimal conditions for the DNA joining, each FMDV coding sequence was divided into two overlapping fragments of approximately 3.8 and 3.2 kb, respectively. Both DNA fragments contain the introduced linker sequences for assembly with the linearized pKLS3 vector. FMDV infectious clones were produced upon directly transfecting the GA reaction into baby hamster kidney-21 (BHK-21) cells. After passing in BHK-21 cells, both rescued FMDVs (rO189 and rNP05) demonstrated growth kinetics and antigenicity similar to their parental viruses. Thus far, this is the first report on GA-derived, full-length infectious FMDV cDNA clones. This simple DNA assembly method and the FMDV minigenome would facilitate the construction of FMDV infectious clones and enable genetic manipulation for FMDV research and custom-made FMDV vaccine production.
    Language English
    Publishing date 2023-06-18
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines11061111
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Andrographolide and Deoxyandrographolide Inhibit Protease and IFN-Antagonist Activities of Foot-and-Mouth Disease Virus 3Cpro

    Theerawatanasirikul, Sirin / Lueangaramkul, Varanya / Thangthamniyom, Nattarat / Chankeeree, Penpitcha / Semkum, Ploypailin / Lekcharoensuk, Porntippa

    Animals. 2022 Aug. 07, v. 12, no. 15

    2022  

    Abstract: Foot-and mouth-disease (FMD) caused by the FMD virus (FMDV) is highly contagious and negatively affects livestock worldwide. The control of the disease requires a combination of measures, including vaccination; however, there is no specific treatment ... ...

    Abstract Foot-and mouth-disease (FMD) caused by the FMD virus (FMDV) is highly contagious and negatively affects livestock worldwide. The control of the disease requires a combination of measures, including vaccination; however, there is no specific treatment available. Several studies have shown that plant-derived products with antiviral properties were effective on viral diseases. Herein, antiviral activities of andrographolide (AGL), deoxyandrographolide (DAG), and neoandrographolide (NEO) against FMDV serotype A were investigated using an in vitro cell-based assay. The results showed that AGL and DAG inhibited FMDV in BHK-21 cells. The inhibitory effects of AGL and DAG were evaluated by RT-qPCR and exhibited EC50 values of 52.18 ± 0.01 µM (SI = 2.23) and 36.47 ± 0.07 µM (SI = 9.22), respectively. The intracellular protease assay revealed that AGL and DAG inhibited FMDV 3Cᵖʳᵒ with IC50 of 67.43 ± 0.81 and 25.58 ± 1.41 µM, respectively. Additionally, AGL and DAG significantly interfered with interferon (IFN) antagonist activity of the 3Cᵖʳᵒ by derepressing interferon-stimulating gene (ISGs) expression. The molecular docking confirmed that the andrographolides preferentially interacted with the 3Cᵖʳᵒ active site. However, NEO had no antiviral effect in any of the assays. Conclusively, AGL and DAG inhibited FMDV serotype A by interacting with the 3Cᵖʳᵒ and hindered its protease and IFN antagonist activities.
    Keywords Foot-and-mouth disease virus ; active sites ; andrographolide ; antagonists ; antiviral properties ; genes ; inhibitory concentration 50 ; interferons ; livestock ; median effective concentration ; proteinases ; serotypes ; vaccination
    Language English
    Dates of publication 2022-0807
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani12151995
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Non-Nucleoside Inhibitors Decrease Foot-and-Mouth Disease Virus Replication by Blocking the Viral 3D

    Theerawatanasirikul, Sirin / Semkum, Ploypailin / Lueangaramkul, Varanya / Chankeeree, Penpitcha / Thangthamniyom, Nattarat / Lekcharoensuk, Porntippa

    Viruses

    2022  Volume 15, Issue 1

    Abstract: Foot-and-mouth disease virus (FMDV), an economically important pathogen of cloven-hoofed livestock, is a positive-sense, single-stranded RNA virus classified in ... ...

    Abstract Foot-and-mouth disease virus (FMDV), an economically important pathogen of cloven-hoofed livestock, is a positive-sense, single-stranded RNA virus classified in the
    MeSH term(s) Animals ; Foot-and-Mouth Disease Virus/genetics ; Antiviral Agents/pharmacology ; Antiviral Agents/metabolism ; RNA-Dependent RNA Polymerase/metabolism ; Foot-and-Mouth Disease ; Virus Replication
    Chemical Substances Antiviral Agents ; RNA-Dependent RNA Polymerase (EC 2.7.7.48)
    Language English
    Publishing date 2022-12-30
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v15010124
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Andrographolide and Deoxyandrographolide Inhibit Protease and IFN-Antagonist Activities of Foot-and-Mouth Disease Virus 3C

    Theerawatanasirikul, Sirin / Lueangaramkul, Varanya / Thangthamniyom, Nattarat / Chankeeree, Penpitcha / Semkum, Ploypailin / Lekcharoensuk, Porntippa

    Animals : an open access journal from MDPI

    2022  Volume 12, Issue 15

    Abstract: Foot-and mouth-disease (FMD) caused by the FMD virus (FMDV) is highly contagious and negatively affects livestock worldwide. The control of the disease requires a combination of measures, including vaccination; however, there is no specific treatment ... ...

    Abstract Foot-and mouth-disease (FMD) caused by the FMD virus (FMDV) is highly contagious and negatively affects livestock worldwide. The control of the disease requires a combination of measures, including vaccination; however, there is no specific treatment available. Several studies have shown that plant-derived products with antiviral properties were effective on viral diseases. Herein, antiviral activities of andrographolide (AGL), deoxyandrographolide (DAG), and neoandrographolide (NEO) against FMDV serotype A were investigated using an in vitro cell-based assay. The results showed that AGL and DAG inhibited FMDV in BHK-21 cells. The inhibitory effects of AGL and DAG were evaluated by RT-qPCR and exhibited EC50 values of 52.18 ± 0.01 µM (SI = 2.23) and 36.47 ± 0.07 µM (SI = 9.22), respectively. The intracellular protease assay revealed that AGL and DAG inhibited FMDV 3C
    Language English
    Publishing date 2022-08-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani12151995
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Encapsidated-CpG ODN Enhances Immunogenicity of Porcine Circovirus Type 2 Virus-like Particles

    Hansoongnern, Payuda / Phecharat, Nantawan / Wasanasuk, Ketkaew / Tommeurd, Wantanee / Chankeeree, Penpitcha / Lekcharoensuk, Chalermpol / Semkum, Ploypailin / Pinitkiatisakul, Sunan / Lekcharoensuk, Porntippa

    Veterinary Microbiology. 2022 Oct. 15, p.109583-

    2022  , Page(s) 109583–

    Abstract: A DNA fragment containing CpG motifs (CpG ODN) is one of the potent immunopotentiators used to improve vaccine efficacy. It can enhance a protective immunity by stimulating both innate and adaptive immune responses. In this study, we designed and ... ...

    Abstract A DNA fragment containing CpG motifs (CpG ODN) is one of the potent immunopotentiators used to improve vaccine efficacy. It can enhance a protective immunity by stimulating both innate and adaptive immune responses. In this study, we designed and constructed a recombinant plasmid carrying the combined CpG ODN to generate an immunopotentiator for boosting the immunogenicity of porcine circovirus type 2 (PCV2) virus-like particles (VLPs). The capsid protein of PCV2b was expressed in insect cells and purified by affinity chromatography. The purified capsid protein was incubated with the CpG ODN in the reaction that allowed VLPs formation and encapsidation of the CpG ODN to occur simultaneously. Morphology of the reassembled VLPs was similar to the PCV2 virions as observed using an electron microscope. When the CpG ODN-encapcidated VLPs was treated with DNase I, the VLPs could protect the packaged CpG ODN from the enzyme digestion. Moreover, we immunized mice subcutaneously with VLPs, CpG ODN-loaded VLPs, or phosphate buffer saline for three times at two-week intervals. The results showed that the CpG ODN-loaded VLPs could elicit significantly higher levels of PCV2-specific neutralizing antibodies and interferon gamma (IFN-γ) expression in the immunized mice compared to those conferred by the VLPs alone. Conclusively, we have proved that the CpG ODN incorporated in VLPs can serve as a potent immunopotentiator for PCV2 vaccine development.
    Keywords DNA fragmentation ; Porcine circovirus-2 ; affinity chromatography ; coat proteins ; deoxyribonucleases ; enzymatic reactions ; immunogenicity ; immunostimulants ; insects ; interferon-gamma ; microbiology ; oligodeoxyribonucleotides ; phosphates ; plasmids ; vaccine development ; vaccines ; CpG ODN ; PCV2 ; virus-like particles ; subunit vaccine ; immunization
    Language English
    Dates of publication 2022-1015
    Publishing place Elsevier B.V.
    Document type Article ; Online
    Note Pre-press version ; Use and reproduction
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2022.109583
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Encapsidated-CpG ODN enhances immunogenicity of porcine circovirus type 2 virus-like particles.

    Hansoongnern, Payuda / Phecharat, Nantawan / Wasanasuk, Ketkaew / Tommeurd, Wantanee / Chankeeree, Penpitcha / Lekcharoensuk, Chalermpol / Semkum, Ploypailin / Pinitkiatisakul, Sunan / Lekcharoensuk, Porntippa

    Veterinary microbiology

    2022  Volume 275, Page(s) 109583

    Abstract: A DNA fragment containing CpG motifs (CpG ODN) is one of the potent immunopotentiators used to improve vaccine efficacy. It can enhance a protective immunity by stimulating both innate and adaptive immune responses. In this study, we designed and ... ...

    Abstract A DNA fragment containing CpG motifs (CpG ODN) is one of the potent immunopotentiators used to improve vaccine efficacy. It can enhance a protective immunity by stimulating both innate and adaptive immune responses. In this study, we designed and constructed a recombinant plasmid carrying the combined CpG ODN to generate an immunopotentiator for boosting the immunogenicity of porcine circovirus type 2 (PCV2) virus-like particles (VLPs). The capsid protein of PCV2b was expressed in insect cells and purified by affinity chromatography. The purified capsid protein was incubated with the CpG ODN in the reaction that allowed VLPs formation and encapsidation of the CpG ODN to occur simultaneously. Morphology of the reassembled VLPs was similar to the PCV2 virions as observed using an electron microscope. When the CpG ODN-encapcidated VLPs was treated with DNase I, the VLPs could protect the packaged CpG ODN from the enzyme digestion. Moreover, we immunized mice subcutaneously with VLPs, CpG ODN-loaded VLPs, or phosphate buffer saline for three times at two-week intervals. The results showed that the CpG ODN-loaded VLPs could elicit significantly higher levels of PCV2-specific neutralizing antibodies and interferon gamma (IFN-γ) expression in the immunized mice compared to those conferred by the VLPs alone. Conclusively, we have proved that the CpG ODN incorporated in VLPs can serve as a potent immunopotentiator for PCV2 vaccine development.
    MeSH term(s) Animals ; Mice ; Adjuvants, Immunologic ; Antibodies, Viral ; Capsid Proteins ; Circoviridae Infections/prevention & control ; Circoviridae Infections/veterinary ; Circovirus ; Swine ; Swine Diseases/prevention & control ; Swine Diseases/virology ; Viral Vaccines ; CpG Islands
    Chemical Substances Adjuvants, Immunologic ; Antibodies, Viral ; Capsid Proteins ; Viral Vaccines
    Language English
    Publishing date 2022-10-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2022.109583
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Natural Phytochemicals, Luteolin and Isoginkgetin, Inhibit 3C Protease and Infection of FMDV, In Silico and In Vitro

    Theerawatanasirikul, Sirin / Thangthamniyom, Nattarat / Kuo, Chih-Jung / Semkum, Ploypailin / Phecharat, Nantawan / Chankeeree, Penpitcha / Lekcharoensuk, Porntippa

    Viruses. 2021 Oct. 21, v. 13, no. 11

    2021  

    Abstract: Foot-and-mouth-disease virus (FMDV) is a picornavirus that causes a highly contagious disease of cloven-hoofed animals resulting in economic losses worldwide. The 3C protease (3Cᵖʳᵒ) is the main protease essential in the picornavirus life cycle, which is ...

    Abstract Foot-and-mouth-disease virus (FMDV) is a picornavirus that causes a highly contagious disease of cloven-hoofed animals resulting in economic losses worldwide. The 3C protease (3Cᵖʳᵒ) is the main protease essential in the picornavirus life cycle, which is an attractive antiviral target. Here, we used computer-aided virtual screening to filter potential anti-FMDV agents from the natural phytochemical compound libraries. The top 23 filtered compounds were examined for anti-FMDV activities by a cell-based assay, two of which possessed antiviral effects. In the viral and post-viral entry experiments, luteolin and isoginkgetin could significantly block FMDV growth with low 50% effective concentrations (EC50). Moreover, these flavonoids could reduce the viral load as determined by RT-qPCR. However, their prophylactic activities were less effective. Both the cell-based and the fluorescence resonance energy transfer (FRET)-based protease assays confirmed that isoginkgetin was a potent FMDV 3Cᵖʳᵒ inhibitor with a 50% inhibition concentration (IC50) of 39.03 ± 0.05 and 65.3 ± 1.7 μM, respectively, whereas luteolin was less effective. Analyses of the protein–ligand interactions revealed that both compounds fit in the substrate-binding pocket and reacted to the key enzymatic residues of the 3Cᵖʳᵒ. Our findings suggested that luteolin and isoginkgetin are promising antiviral agents for FMDV and other picornaviruses.
    Keywords computer simulation ; energy transfer ; fluorescence ; foot-and-mouth disease ; inhibitory concentration 50 ; luteolin ; median effective concentration ; proteinases ; viral load ; viruses
    Language English
    Dates of publication 2021-1021
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2516098-9
    ISSN 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v13112118
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: The immunogenicity of the secretory GΔTM protein of bovine ephemeral fever virus stably expressed by mammalian cells

    Hansoongnern, Payuda / Kaewborisuth, Challika / Wasanasuk, Ketkaew / Chankeeree, Penpitcha / Poonsuk, Sukontip / Lekcharoensuk, Chalermpol / Lekcharoensuk, Porntippa

    Veterinary microbiology. 2019 June, v. 233

    2019  

    Abstract: Bovine ephemeral fever virus (BEFV) causes an acute febrile disease in cattle and water buffalo. The disease has an impact on dairy and beef production in tropical and subtropical countries. Vaccination is used for disease prevention and control. In this ...

    Abstract Bovine ephemeral fever virus (BEFV) causes an acute febrile disease in cattle and water buffalo. The disease has an impact on dairy and beef production in tropical and subtropical countries. Vaccination is used for disease prevention and control. In this study, we developed a recombinant lentivirus to produce mammalian stable cells expressing histidine-tagged BEFV G protein with a deleted transmembrane domain (GΔTM) as a secretory protein. In addition, guinea pigs were immunised with the purified GΔTM protein and booster immunised at a 3-week interval. The mammalian stable cells were able to continuously produce GΔTM protein for a minimum of 25 passages. All of the mammalian stable cells expressing GΔTM protein could react specifically with a BEFV convalescent bovine serum. Serum samples from the immunised guinea pigs could react strongly and specifically with the purified GΔTM protein. Moreover, post-immunised guinea pig sera contained antibodies that could neutralise BEFV. These results indicate that the G protein without a transmembrane domain can be used as a subunit vaccine for the prevention and control of BEFV. The availability of the mammalian stable cells, which constitutively express GΔTM protein, could facilitate the potential use of the secretory protein for BEFV diagnosis and vaccine development.
    Keywords Bovine ephemeral fever virus ; G-proteins ; Lentivirus ; antibodies ; beef cattle ; beef production ; blood serum ; buffaloes ; cattle diseases ; disease prevention ; guinea pigs ; immunogenicity ; milk production ; neutralization ; subunit vaccines ; vaccination ; vaccine development
    Language English
    Dates of publication 2019-06
    Size p. 113-117.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2019.04.032
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  9. Article ; Online: Natural Phytochemicals, Luteolin and Isoginkgetin, Inhibit 3C Protease and Infection of FMDV, In Silico and In Vitro.

    Theerawatanasirikul, Sirin / Thangthamniyom, Nattarat / Kuo, Chih-Jung / Semkum, Ploypailin / Phecharat, Nantawan / Chankeeree, Penpitcha / Lekcharoensuk, Porntippa

    Viruses

    2021  Volume 13, Issue 11

    Abstract: Foot-and-mouth-disease virus (FMDV) is a picornavirus that causes a highly contagious disease of cloven-hoofed animals resulting in economic losses worldwide. The 3C protease ( ... ...

    Abstract Foot-and-mouth-disease virus (FMDV) is a picornavirus that causes a highly contagious disease of cloven-hoofed animals resulting in economic losses worldwide. The 3C protease (3C
    MeSH term(s) 3C Viral Proteases/antagonists & inhibitors ; 3C Viral Proteases/chemistry ; 3C Viral Proteases/genetics ; 3C Viral Proteases/metabolism ; Animals ; Antiviral Agents/chemistry ; Antiviral Agents/pharmacology ; Biflavonoids/chemistry ; Biflavonoids/pharmacology ; Computer Simulation ; Enzyme Inhibitors/chemistry ; Enzyme Inhibitors/pharmacology ; Foot-and-Mouth Disease/virology ; Foot-and-Mouth Disease Virus/chemistry ; Foot-and-Mouth Disease Virus/drug effects ; Foot-and-Mouth Disease Virus/enzymology ; Foot-and-Mouth Disease Virus/genetics ; Humans ; Luteolin/chemistry ; Luteolin/pharmacology ; Phytochemicals/chemistry ; Phytochemicals/pharmacology
    Chemical Substances Antiviral Agents ; Biflavonoids ; Enzyme Inhibitors ; Phytochemicals ; isoginkgetin ; 3C Viral Proteases (EC 3.4.22.28) ; Luteolin (KUX1ZNC9J2)
    Language English
    Publishing date 2021-10-21
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v13112118
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The immunogenicity of the secretory GΔTM protein of bovine ephemeral fever virus stably expressed by mammalian cells.

    Hansoongnern, Payuda / Kaewborisuth, Challika / Wasanasuk, Ketkaew / Chankeeree, Penpitcha / Poonsuk, Sukontip / Lekcharoensuk, Chalermpol / Lekcharoensuk, Porntippa

    Veterinary microbiology

    2019  Volume 233, Page(s) 113–117

    Abstract: Bovine ephemeral fever virus (BEFV) causes an acute febrile disease in cattle and water buffalo. The disease has an impact on dairy and beef production in tropical and subtropical countries. Vaccination is used for disease prevention and control. In this ...

    Abstract Bovine ephemeral fever virus (BEFV) causes an acute febrile disease in cattle and water buffalo. The disease has an impact on dairy and beef production in tropical and subtropical countries. Vaccination is used for disease prevention and control. In this study, we developed a recombinant lentivirus to produce mammalian stable cells expressing histidine-tagged BEFV G protein with a deleted transmembrane domain (GΔTM) as a secretory protein. In addition, guinea pigs were immunised with the purified GΔTM protein and booster immunised at a 3-week interval. The mammalian stable cells were able to continuously produce GΔTM protein for a minimum of 25 passages. All of the mammalian stable cells expressing GΔTM protein could react specifically with a BEFV convalescent bovine serum. Serum samples from the immunised guinea pigs could react strongly and specifically with the purified GΔTM protein. Moreover, post-immunised guinea pig sera contained antibodies that could neutralise BEFV. These results indicate that the G protein without a transmembrane domain can be used as a subunit vaccine for the prevention and control of BEFV. The availability of the mammalian stable cells, which constitutively express GΔTM protein, could facilitate the potential use of the secretory protein for BEFV diagnosis and vaccine development.
    MeSH term(s) Animals ; Antibodies, Neutralizing/blood ; Antibodies, Viral/blood ; Cattle ; Cell Line ; Ephemeral Fever/immunology ; Ephemeral Fever/prevention & control ; Ephemeral Fever Virus, Bovine ; Female ; Glycoproteins/genetics ; Glycoproteins/immunology ; Guinea Pigs ; HEK293 Cells ; Humans ; Immunogenicity, Vaccine ; Transfection ; Vaccination ; Viral Proteins/genetics ; Viral Proteins/immunology ; Viral Vaccines/immunology
    Chemical Substances Antibodies, Neutralizing ; Antibodies, Viral ; Glycoproteins ; Viral Proteins ; Viral Vaccines ; BEFV G protein, Bovine ephemeral fever virus (148770-53-0)
    Language English
    Publishing date 2019-04-28
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2019.04.032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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