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Alam K, Raviraj VS, Chowdhury T, Bhuimali A, Ghosh P, Saha S. Application of biotechnology in sericulture: Progress, scope and prospect. THE NUCLEUS 2021. [DOI: 10.1007/s13237-021-00355-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Minagawa S, Nakaso Y, Tomita M, Igarashi T, Miura Y, Yasuda H, Sekiguchi S. Novel recombinant feline interferon carrying N-glycans with reduced allergy risk produced by a transgenic silkworm system. BMC Vet Res 2018; 14:260. [PMID: 30170576 PMCID: PMC6119277 DOI: 10.1186/s12917-018-1584-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 08/20/2018] [Indexed: 11/25/2022] Open
Abstract
Background The generation of recombinant proteins for commercialisation must be cost-effective. Despite the cost-effective production of recombinant feline interferon (rFeIFN) by a baculovirus expression system, this rFeIFN carries insect-type N-glycans, with core α 1,3 fucosyl residues that act as potential allergens. An alternative method of production may yield recombinant glycoproteins with reduced antigenicity. Results A cDNA clone encoding the fifteenth subtype of FeIFN-α (FeIFN-α15) was isolated from a Japanese domestic cat. This clone encoded a protein of 189 amino acids with a molecular mass of 21.1 kDa. The rFeIFN-α15 was expressed using a transgenic silkworm system, which was expected to yield an N-glycan structure with reduced antigenicity compared with the protein produced by the baculovirus system. The resulting rFeIFN-α15 accumulated in the sericin layer of silk fibres and was easily extracted and purified by column chromatography. The N-terminal amino acid sequence of purified rFeIFN-α15 was identical to the mature form of natural sequence. Moreover, its N-glycans did not include detectable core α 1,3 fucosyl residues. Its anti-vesicular stomatitis virus activity (2.6 × 108 units/mg protein) was comparable to that of the baculovirus-expressed rFeIFN. Conclusions The lower allergy risk of rFeIFN produced by the transgenic silkworm system than by the baculovirus expression system is due to the former lacking core α 1,3 fucosyl residues in its N-glycans. The rFeIFN-α15 produced by the transgenic silkworm system may be a prospective candidate for the next generation of rFeIFN in veterinary medicine.
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Affiliation(s)
- Sachi Minagawa
- Innovation Center, Nippon Flour Mills Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa, 243-0041, Japan.
| | - Yuzuru Nakaso
- Innovation Center, Nippon Flour Mills Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa, 243-0041, Japan
| | - Masahiro Tomita
- Transgenic Silkworm Department, Immuno-Biological Laboratories Co., Ltd., 1091-1 Naka, Fujioka, Gunma, 375-0005, Japan
| | - Takenori Igarashi
- Transgenic Silkworm Department, Immuno-Biological Laboratories Co., Ltd., 1091-1 Naka, Fujioka, Gunma, 375-0005, Japan
| | - Yoshio Miura
- Innovation Center, Nippon Flour Mills Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa, 243-0041, Japan
| | - Hideyo Yasuda
- Innovation Center, Nippon Flour Mills Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa, 243-0041, Japan
| | - Satoshi Sekiguchi
- Innovation Center, Nippon Flour Mills Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa, 243-0041, Japan
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Egashira Y, Nagatoishi S, Kiyoshi M, Ishii-Watabe A, Tsumoto K. Characterization of glycoengineered anti-HER2 monoclonal antibodies produced by using a silkworm–baculovirus expression system. J Biochem 2018; 163:481-488. [DOI: 10.1093/jb/mvy021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 12/23/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yuriko Egashira
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Protein Development Center, Sysmex Corporation, Sayama, Saitama 350-1332, Japan
| | - Satoru Nagatoishi
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Masato Kiyoshi
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Kanagawa 210-9501, Japan
| | - Akiko Ishii-Watabe
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Kanagawa 210-9501, Japan
| | - Kouhei Tsumoto
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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Takahashi T, Sakumoto R, Hayashi KG, Hosoe M, Shirai J, Hashizume K. Generation of recombinant bovine interferon tau in the human embryonic kidney cell line and its biological activity. Anim Sci J 2017; 88:1498-1505. [PMID: 28558419 DOI: 10.1111/asj.12820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/31/2017] [Indexed: 01/15/2023]
Abstract
The objective of this study was to generate recombinant bovine interferon tau (rbIFNT) in mammalian hosts. The complementary DNA encoding bovine IFNT2 was cloned for the construction of pRcRSV-bIFNT2 expression vector. The expression vector was transfected to 293 cells. Transfected cells harboring expression vector were selected with G418. Highly expressing clonal line was adapted to serum-free suspension culture in a spinner flask. The recombinant protein had 24 kDa apparent molecular mass, suggesting being expressed as a glycoprotein, and was purified from serum-free conditioned medium by the combination of Diethylaminoethanol Sepharose ion exchange and Sephacryl S-200 HR gel filtration. A total of 7.3 mg rbIFNT was obtained from 13.5 L conditioned medium. Generated rbIFNT was biologically active in terms of antiviral activity measured by the plaque inhibition assay with Madin-Darby bovine kidney cells and the vesicular stomatitis virus. The recombinant protein was also utilized for immunization to raise antibodies in the rabbit. The generated antibody was capable of use in both Western blotting and the binding assay. The results in the present study suggest that a certain amount of rbIFNT is raised in mammalian hosts by using conventional plasmid vector and its antibody provides useful tools for studies in the biology of bovine IFNT.
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Affiliation(s)
- Toru Takahashi
- Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Ryosuke Sakumoto
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Ken-Go Hayashi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Misa Hosoe
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Junsuke Shirai
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
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Heme precursor injection is effective for Arthromyces ramosus peroxidase fusion protein production by a silkworm expression system. J Biosci Bioeng 2015; 120:384-6. [PMID: 25907573 DOI: 10.1016/j.jbiosc.2015.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/07/2015] [Accepted: 02/20/2015] [Indexed: 11/21/2022]
Abstract
Recombinant peroxidase from Arthromyces ramosus, fused with domains of antibody-binding proteins, was successfully obtained by a silkworm larvae expression system. The catalytic activity of the fusion peroxidase was increased 6-fold with the injection of 5-aminolevulinic acid into silkworm larvae as a heme precursor.
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Saugandhika S, Sharma V, Malik H, Saini S, Bag S, Kumar S, Singh NK, Mohanty AK, Malakar D. Expression and purification of buffalo interferon-tau and efficacy of recombinant buffalo interferon-tau for in vitro embryo development. Cytokine 2015; 75:186-96. [PMID: 25890875 DOI: 10.1016/j.cyto.2015.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 03/04/2015] [Accepted: 03/12/2015] [Indexed: 11/29/2022]
Abstract
The aim of our study was to optimize growth and induction parameters, for expression and large scale purification of functionally active buffalo interferon tau, and to study its possible impact on in vitro blastocyst development. The buffalo interferon-tau gene (BuIFN-T1) bearing gene bank accession No. JX481984, with signal sequence, was obtained through polymerase chain reaction (PCR) from bovine early embryos and was cloned into pJET vector. After being verified, the fragments without signal sequence, were inserted into the expression vector pET-22b and the recombinant plasmid was induced to express the recombinant protein in a prokaryotic expression system. The recombinant BuIFN-T was confirmed by SDS-PAGE and Western blot and subjected to three steps of large scale purification using His Affinity chromatography, Anion Exchange chromatography and Gel Filtration chromatography. The purified recombinant BuIFN-T protein was validated by mass spectroscopy analysis. To examine the effect of recombinant BuIFN-T protein on developmental competency of buffalo embryos, purified recombinant BuIFN-T protein was added to in vitro embryo culture medium (at concentration of 0, 1μg/ml, 2μg/ml, 4μg/ml) for 9days. Addition of recombinant BuIFN-T (2μg/ml) significantly improved the rate of blastocyst production, 45.55% against 31.1% control (p<0.01). Here we conclude that the recombinant BuIFN-T was successfully purified to homogeneity from a prokaryotic expression system and it significantly increased the blastocyst production rate in buffalo. These findings suggest a potential impact of IFN-T in promoting embryonic growth and development.
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Affiliation(s)
- Shrabani Saugandhika
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Vishal Sharma
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Hrudananda Malik
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Sikander Saini
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Sudam Bag
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Sudarshan Kumar
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | | | - Ashok Kumar Mohanty
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Dhruba Malakar
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana 132001, India.
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Targovnik AM, Villaverde MS, Arregui MB, Fogar M, Taboga O, Glikin GC, Finocchiaro LM, Cascone O, Miranda MV. Expression and purification of recombinant feline interferon in the baculovirus-insect larvae system. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.03.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Takahashi H, Tsunazaki M, Hamano T, Takahashi M, Okuda K, Inumaru S, Okano A, Geshi M, Hirako M. Biological activity of recombinant bovine interferon τ produced by a silkworm-baculovirus gene expression system. J Vet Med Sci 2013; 76:447-51. [PMID: 24212505 PMCID: PMC4013374 DOI: 10.1292/jvms.12-0403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Bovine interferon (bIFN) τ plays a crucial role in maternal-fetal recognition
and was expressed using a Bombyx mori (Bm) nuclear polyhedrosis virus
(silkworm baculovirus) gene expression system. The biological effects of Bm-recombinant
bIFNτ (rbIFNτ) on prostaglandin (PG) F2α synthesis were investigated in
cultured bovine endometrial epithelial cells with oxytocin (OT, 100 nM) and on the
in vitro development of bovine embryos. Bm-rbIFNτ and OT were shown to
suppress PGF2α production in a dose-dependent manner. When in
vitro produced morula stage embryos were cultured for 72 hr in modified CR1aa
medium supplemented with or without rbIFNτ, Bm-rbIFNτ (10
ng/ml) significantly promoted development to the
expanded blastocyst stage. In conclusion, Bm-rbIFNτ was suggested to have the same
bioactivity as native IFNτ.
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Affiliation(s)
- Hitomi Takahashi
- Animal Breeding and Reproduction Research Division, NARO Institute of Livestock and Grassland Science, 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
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Usami A, Ishiyama S, Enomoto C, Okazaki H, Higuchi K, Ikeda M, Yamamoto T, Sugai M, Ishikawa Y, Hosaka Y, Koyama T, Tobita Y, Ebihara S, Mochizuki T, Asano Y, Nagaya H. Comparison of recombinant protein expression in a baculovirus system in insect cells (Sf9) and silkworm. J Biochem 2010; 149:219-27. [PMID: 21113054 DOI: 10.1093/jb/mvq138] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Using a hybrid baculovirus system, we compared the expression of 45 recombinant proteins from six categories using two models: silkworm (larvae and pupae) and an Sf9 cell line. A total of 45 proteins were successfully expressed; preparation of hybrid baculovirus was unsuccessful for one protein, and two proteins were not expressed. A similar pattern of expression was seen in both silkworm and Sf9 cells, with double and multiple bands found in immunoblotting of the precipitate of both hosts. Degraded proteins were seen only in the silkworm system (particularly in the larvae). Production was more efficient in silkworms; a single silkworm produced about 70 times more protein than 10(6) Sf9 cells in 2 ml of culture medium.
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Affiliation(s)
- Akihiro Usami
- Katakura Industries Co. Ltd, Research Institute of Biological Science, Sayama, Saitama, Japan
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Esophageal cancer-related gene 4 is a secreted inducer of cell senescence expressed by aged CNS precursor cells. Proc Natl Acad Sci U S A 2010; 107:8259-64. [PMID: 20404145 DOI: 10.1073/pnas.0911446107] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mammalian aging is thought to be partially caused by the diminished capacity of stem/precursor cells to undergo self-renewing divisions. Although many cell-cycle regulators are involved in this process, it is unknown to what extent cell senescence, first identified as irreversible growth arrest in vitro, contributes to the aging process. Here, using a serum-induced mouse oligodendrocyte precursor cell (mOPC) senescence model, we identified esophageal cancer-related gene 4 (Ecrg4) as a senescence inducer with implications for the senescence-like state of postmitotic cells in the aging brain. Although mOPCs could proliferate indefinitely when cultured using the appropriate medium (OPC medium), they became senescent in the presence of serum and maintained their senescent phenotype even when the serum was subsequently replaced by OPC medium. We show that Ecrg4 was up-regulated in the senescent OPCs, its overexpression in OPCs induced senescence by accelerating the proteasome-dependent degradation of cyclins D1 and D3, and that its knockdown by a specific short hairpin RNA prevented these phenotypes. We also show that senescent OPCs secreted Ecrg4 and that recombinant Ecrg4 induced OPC senescence in culture. Moreover, increased Ecrg4 expression was observed in the OPCs and neural precursor cells in the aged mouse brain; this was accompanied by the expression of senescence-associated beta-galactosidase activity, indicating the cells' entrance into senescence. These results suggest that Ecrg4 is a factor linking neural-cell senescence and aging.
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Kato T, Kajikawa M, Maenaka K, Park EY. Silkworm expression system as a platform technology in life science. Appl Microbiol Biotechnol 2010; 85:459-70. [PMID: 19830419 PMCID: PMC2802491 DOI: 10.1007/s00253-009-2267-2] [Citation(s) in RCA: 148] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 09/17/2009] [Accepted: 09/17/2009] [Indexed: 11/27/2022]
Abstract
Many recombinant proteins have been successfully produced in silkworm larvae or pupae and used for academic and industrial purposes. Several recombinant proteins produced by silkworms have already been commercialized. However, construction of a recombinant baculovirus containing a gene of interest requires tedious and troublesome steps and takes a long time (3-6 months). The recent development of a bacmid, Escherichia coli and Bombyx mori shuttle vector, has eliminated the conventional tedious procedures required to identify and isolate recombinant viruses. Several technical improvements, including a cysteine protease or chitinase deletion bacmid and chaperone-assisted expression and coexpression, have led to significantly increased protein yields and reduced costs for large-scale production. Terminal N-acetyl glucosamine and galactose residues were found in the N-glycan structures produced by silkworms, which are different from those generated by insect cells. Genomic elucidation of silkworm has opened a new chapter in utilization of silkworm. Transgenic silkworm technology provides a stable production of recombinant protein. Baculovirus surface display expression is one of the low-cost approaches toward silkworm larvae-derived recombinant subunit vaccines. The expression of pharmaceutically relevant proteins, including cell/viral surface proteins, membrane proteins, and guanine nucleotide-binding protein (G protein) coupled receptors, using silkworm larvae or cocoons has become very attractive. Silkworm biotechnology is an innovative and easy approach to achieve high protein expression levels and is a very promising platform technology in the field of life science. Like the "Silkroad," we expect that the "Bioroad" from Asia to Europe will be established by the silkworm expression system.
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Affiliation(s)
- Tatsuya Kato
- Faculty of Agriculture, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529 Japan
| | - Mizuho Kajikawa
- Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Katsumi Maenaka
- Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Enoch Y. Park
- Faculty of Agriculture, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529 Japan
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Pérez-Martín E, Gómez-Sebastián S, Argilaguet JM, Sibila M, Fort M, Nofrarías M, Kurtz S, Escribano JM, Segalés J, Rodríguez F. Immunity conferred by an experimental vaccine based on the recombinant PCV2 Cap protein expressed in Trichoplusia ni-larvae. Vaccine 2010; 28:2340-9. [PMID: 20056179 DOI: 10.1016/j.vaccine.2009.12.061] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Revised: 12/11/2009] [Accepted: 12/23/2009] [Indexed: 12/11/2022]
Abstract
Porcine circovirus type 2 (PCV2) vaccination has been recently included as a measure to control postweaning multisystemic wasting syndrome (PMWS) in the field. Aiming to obtain a more affordable vaccine to be extensively implemented in the field, a highly efficient non-fermentative expression platform based on Trichoplusia ni (T. ni) larvae was used to produce a baculovirus-derived recombinant PCV2 Cap protein (rCap) for vaccine purposes. Vaccination of pigs with rCap induced solid protection against PCV2 experimental infection, inhibiting both the viremia and the viral shedding very efficiently. The protection afforded by the rCap vaccine strongly correlated with the induction of specific humoral immune responses, even in the presence of PCV2-specific maternal immunity, although cellular responses also seemed to play a partial role. In summary, we have shown that rCap expressed in T. ni larvae could be a cost-effective PCV2 vaccine candidate to be tested under field conditions.
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Affiliation(s)
- Eva Pérez-Martín
- Centre de Recerca en Sanitat Animal, UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Cgr11 encodes a secretory protein involved in cell adhesion. Eur J Cell Biol 2009; 88:521-9. [PMID: 19473726 DOI: 10.1016/j.ejcb.2009.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 04/06/2009] [Accepted: 04/20/2009] [Indexed: 11/22/2022] Open
Abstract
We performed comparative proteomic analyses of pituitary tumor-derived cell lines, and found a new protein, preliminarily called hydrophobestin, which was produced only in somatotrophic cells, MtT/S, but not in non-hormone-producing cells, MtT/E. Hydrophobestin is encoded by the cell growth regulatory gene, Cgr11, which is known to have growth-suppressive potential in several cell lines. We have now sought to investigate the underlying events responsible for cell growth inhibition by hydrophobestin. Immunocytochemisty revealed that hydrophobestin is localized in the Golgi apparatus of MtT/S cells and Cgr11-transfected MtT/E cells. The apparent molecular mass of the protein was determined by Westerm blot analysis of conditioned culture medium of MtT/S cells. Our data show that hydrophobestin is a secretory protein localized in the pituitary gland, adrenal gland, digestive tract, reproductive organs, and kidney. We also found that hydrophobestin promotes compact monolayer cell aggregates in PC12 cells transfected with Cgr11, however, non-transfected, vector- or EF-hand motif-deleted (DeltaEF) Cgr11-transfected PC12 cells cannot form compact cell colonies. An antibody recognizing EF-hand motifs showed strong staining in the intercellular space of both Cgr11-transfected PC12 cells and MtT/S cells (Cgr11-expressing cells). Our data suggest that hydrophobestin-mediated cell adhesion may regulate cell growth through compact cell attachment.
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Loustau MN, Romero LV, Levin GJ, Magri ML, López MG, Taboga O, Cascone O, Miranda MV. Expression and purification of horseradish peroxidase in insect larvae. Process Biochem 2008. [DOI: 10.1016/j.procbio.2007.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Expression, purification and characterization of yeast protein disulfide isomerase produced by a recombinant baculovirus-mediated silkworm, Bombyx mori, pupae expression system. Biotechnol Lett 2007; 30:625-30. [PMID: 17985081 DOI: 10.1007/s10529-007-9582-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Accepted: 10/25/2007] [Indexed: 10/22/2022]
Abstract
Protein disulfide isomerase (PDI) is a multifunctional polypeptide presents in the endoplasmic reticulum of the cell. Silkworm (Bombyx mori) pupae were used as hosts to produce recombinant PDI (rPDI). The concentration-dependent chaperone activity of rPDI was evidenced by the inhibition of the aggregation of rhodanese. Approximately 297 microg rPDI was purified from a single silkworm pupa. Results of rPDI treated with endoglycosidase H and N-glycanase, PNGase F, indicate that non-N-glycosylated rPDI (occupying 90%) and N-glycosylated rPDI are expressed in the silkworm expression system. The difference in glycosylation between silkworm pupae and yeast is discussed.
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O'Connell KP, Kovaleva E, Campbell JH, Anderson PE, Brown SG, Davis DC, Valdes JJ, Welch RW, Bentley WE, van Beek NA. Production of a recombinant antibody fragment in whole insect larvae. Mol Biotechnol 2007; 36:44-51. [PMID: 17827537 DOI: 10.1007/s12033-007-0014-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 12/22/2022]
Abstract
Infection of insect cells with baculovirus expression constructs is commonly used to produce recombinant proteins that require post-translational modifications for their activity, such as mammalian proteins. However, technical restraints limit the capacity of insect cell-based culture systems to be scaled up to produce the large amounts of recombinant protein required for human pharmaceuticals. In this study, we designed an automated insect rearing system and whole insect baculovirus expression system (PERLXpress) for the expression and purification of recombinant proteins on a large scale. As a test model, we produced a recombinant mouse anti-botulinum antibody fragment (Fab) in Trichoplusia ni larvae. A recombinant baculovirus co-expressing the Fab heavy and light chains together with N-terminal sequences from the silkworm hormone bombyxin, to direct proteins into the secretory pathway, was constructed. Fifth instar larvae were reared and infected orally with recombinant (pre- occluded) baculovirus using the automated system and harvested approximately after 4 days. The total yield of recombinant Fab was 1.1 g/kg of larvae, resulting in 127 mg of pure Fab in one production run. The Fab was purified to homogeneity using immobilized metal affinity chromatography, gel filtration, and anion exchange chromatography. The identity of the purified protein was verified by Western blots and size-exclusion chromatography. Purified recombinant Fab was used to detect botulinum toxin in ELISA experiments, demonstrating that the heavy and light chains were properly assembled and folded into functional heterodimers. We believe that this is the first demonstration of the expression of a recombinant antibody in whole insect larvae. Our results demonstrate that a baculovirus-whole larvae expression system can be used to express functionally active recombinant Fab fragments. As the PERLXpress system is an automated and linearly scalable technology, it represents an attractive alternative to insect cell culture for the production of large amounts of human pharmaceuticals.
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Affiliation(s)
- Kevin P O'Connell
- U.S. Army Edgewood Chemical Biological Center, AMSRD-ECB-RT-BM, 5183 Blackhawk Road,Aberdeen Proving Ground, MD, 21010, USA
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Chen J, Nie ZM, Lü ZB, Zhu CG, Xu CZ, Jin YF, Wu XF, Zhang YZ. Large-scale purification of human granulocyte-macrophage colony-stimulating factor expressed in Bombyx mori pupae. Appl Biochem Biotechnol 2007; 141:149-60. [PMID: 17625273 DOI: 10.1007/s12010-007-9217-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2005] [Revised: 03/13/2006] [Accepted: 04/25/2006] [Indexed: 10/23/2022]
Abstract
Human granulocyte-macrophage colony-stimulating factor (hGM-CSF) acts on many different kinds of cells, including monocytes, macrophages, granulocytes, eosinophils, and multipotential stem cells. To explore further explore pharmaceutical action, we expressed hGM-CSF by the Bombyx mori nucleopolyhedrovirus expression system in silkworm pupae. However, purifying recombinant proteins from silkworm pupae on a large scale has been a big challenge. To establish purification methods suitable for mass production, we tried two crude preparation methods: (NH4)2SO4 fractional precipitation and isoelectric precipitation with a combination of gel filtration and ion-exchange chromatography. The isoelectric precipitation method was found to be more efficient. With this method, we eventually obtained approx 11.7 mg of 95% pure product from 1000 g of infected silkworm pupae. The recovery of purified protein was greatly increased, by approx 40%, compared with the other method. The biologic activity of this protein was determined up to 9.0 x 106 colony-forming units/mg in the final purified product.
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Affiliation(s)
- Jian Chen
- Institute of Biochemistry, Zhejiang Sci-Tech University, Hangzhou, China
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Kohara J, Yokomizo Y. In vitro and in vivo effects of recombinant bovine interferon-tau on bovine leukemia virus. J Vet Med Sci 2007; 69:15-9. [PMID: 17283394 DOI: 10.1292/jvms.69.15] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The antiviral effects of recombinant bovine interferon-tau (rboIFN-tau) on bovine leukemia virus (BLV) were examined in vitro and in vivo. In the in vitro experiments, BLV titers decreased in FLK-BLV cells and in peripheral blood mononuclear cells of BLV-infected cattle treated with rboIFN-tau at a concentration higher than 10(2) U/ml. In order to examine the in vivo effects of rboIFN-tau, 10 BLV-infected cattle were subcutaneously injected with rboIFN-tau. In the first experiment, 6 cows were administrated with 10(5) U/kg body weight of rboIFN-tau 3 times per week for 4 weeks, while in the second experiment 4 cows were administrated with 10(6) U/kg body weight of rboIFN-tau 3 times per week for 3 weeks. No adverse effects were observed after the administration of rboIFN-tau. In experiment No. 1, the mean BLV titers in cattle decreased in the post-rboIFN-tau administration period compared to the pre-rboIFN-tau administration period. In experiment No. 2, the mean BLV titers in cattle decreased in the rboIFN-tau administration period. These results suggest that rboIFN-tau decreases BLV titers in vitro and in vivo and that rboIFN-tau possibly reduces the degree of BLV titer in cattle without severe side effects.
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Affiliation(s)
- Junko Kohara
- Hokkaido Animal Research Center, Shintoku, Japan
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Baculovirus as versatile vectors for protein expression in insect and mammalian cells. Nat Biotechnol 2005; 23:567-75. [PMID: 15877075 PMCID: PMC3610534 DOI: 10.1038/nbt1095] [Citation(s) in RCA: 671] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Today, many thousands of recombinant proteins, ranging from cytosolic enzymes to membrane-bound proteins, have been successfully produced in baculovirus-infected insect cells. Yet, in addition to its value in producing recombinant proteins in insect cells and larvae, this viral vector system continues to evolve in new and unexpected ways. This is exemplified by the development of engineered insect cell lines to mimic mammalian cell glycosylation of expressed proteins, baculovirus display strategies and the application of the virus as a mammalian-cell gene delivery vector. Novel vector design and cell engineering approaches will serve to further enhance the value of baculovirus technology.
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Takahashi H, Takahashi M, Nagaya H, Hirako M, Sawai K, Minamihashi A, Inumaru S, Yokomizo Y, Geshi M, Okano A, Okuda K. Establishment of a specific radioimmunoassay for bovine interferon τ. Theriogenology 2005; 63:1050-60. [PMID: 15710192 DOI: 10.1016/j.theriogenology.2004.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2003] [Accepted: 05/21/2004] [Indexed: 10/26/2022]
Abstract
A radioimmunoassay (RIA) was developed for quantification of bovine interferon (bIFN) tau, conceptus secretory protein, which allows for the maintenance of the corpus luteum during early pregnancy. A cDNA coding bIFN tau was derived from cultured trophoblast cells (TBs). Recombinant (r) bIFN tau was produced in a baculovirus expression system with two different viruses. The RIA was a double-antibody competitive binding assay that used anti-bIFN tau antiserum (raised in rabbits) as the primary antibody, a radioiodinated derivative of bIFNtau as the radioactive tracer, and goat anti-rabbit IgG as the secondary antibody. The antibody did not cross-react with rbIFN alpha, recombinant human IFN beta or recombinant ovine IFN tau. The correct recovery of amounts of rbIFN tau indicated good accuracy. Serially concentrated TB conditioned media, paralleled the standard curve for bIFN tau. The intra-assay and inter-assay coefficients of variation at bIFN tau levels of 7.8 and 15.6 ng/mL were 7.1 and 8.1%, and 11.0 and 8.5%, respectively. bIFN tau was directly detected in uterine flushings obtained from cows at Day 16 of pregnancy. In summary, this assay was suitable for the measurement of bIFN tau.
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Affiliation(s)
- Hitomi Takahashi
- Department of Animal Breeding and Reproduction, National Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan.
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