Journal Articles
- Recombinant baculovirus-based vaccine expressing M2 protein induces protective CD8+ T-cell immunity against respiratory syncytial virus infection
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Jeong-Yoon Lee , Jun Chang
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J. Microbiol. 2017;55(11):900-908. Published online October 27, 2017
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DOI: https://doi.org/10.1007/s12275-017-7306-6
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Abstract
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Respiratory syncytial virus (RSV) is an important cause of
acute lower respiratory tract disease in infants, young children,
immunocompromised individuals, and the elderly. However,
despite ongoing efforts to develop an RSV vaccine, there
is still no authorized RSV vaccine for humans. Baculovirus
has attracted attention as a vaccine vector because of its ability
to induce a high level of humoral and cellular immunity, low
cytotoxicity against various antigens, and biological safety
for humans. In this study, we constructed a recombinant baculovirus-
based vaccine expressing the M2 protein of RSV under
the control of cytomegalovirus promoter (Bac_RSVM2)
to induce CD8+ T-cell responses which play an important
role in viral clearance, and investigated its protective efficacy
against RSV infection. Immunization with Bac_RSVM2 via
intranasal or intramuscular route effectively elicited the specific
CD8+ T-cell responses. Most notably, immunization with
Bac_RSVM2 vaccine almost completely protected mice from
RSV challenge without vaccine-enhanced immunopathology.
In conclusion, these results suggest that Bac_RSVM2 vaccine
employing the baculovirus delivery platform has promising
potential to be developed as a safe and novel RSV vaccine
that provides protection against RSV infection.
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Citations
Citations to this article as recorded by

- Respiratory delivered vaccines: Current status and perspectives in rational formulation design
Lan Wu, Wenwen Xu, Huiyang Jiang, Mingshi Yang, Dongmei Cun
Acta Pharmaceutica Sinica B.2024; 14(12): 5132. CrossRef - Enhanced virulence of genetically engineered Autographa californica nucleopolyhedrovirus owing to accelerated viral DNA replication aided by inserted ascovirus genes
Huan Yu, Chang-Jin Yang, Yi-Yi Ou-Yang, Yue Tong, Hui-Yu Lan, Jia-Min Gan, Shi-Wei Li, Ding-Yi Bai, Guo-Hua Huang
Pesticide Biochemistry and Physiology.2023; 192: 105382. CrossRef - Cytokines and CD8 T cell immunity during respiratory syncytial virus infection
Megan E. Schmidt, Steven M. Varga
Cytokine.2020; 133: 154481. CrossRef - Induction of mucosal immunity against pathogens by using recombinant baculoviral vectors: Mechanisms, advantages, and limitations
Mario Fragoso-Saavedra, Marco A Vega-López
Journal of Leukocyte Biology.2020; 108(3): 835. CrossRef - Endogenous n-3 Polyunsaturated Fatty Acids Are Beneficial to Dampen CD8+ T Cell-Mediated Inflammatory Response upon the Viral Infection in Mice
Kyung Won Kang, Seyoung Kim, Yong-Bin Cho, Seung Rok Ryu, Young-Jin Seo, Sang-Myeong Lee
International Journal of Molecular Sciences.2019; 20(18): 4510. CrossRef - Anti-viral activity of compounds from Agrimonia pilosa and Galla rhois extract mixture
Jeong Eun Kwon, Yeong-Geun Lee, Ji-Hun Kang, Yun-Feng Bai, Yong Joon Jeong, Nam-In Baek, Young-Jin Seo, Se Chan Kang
Bioorganic Chemistry.2019; 93: 103320. CrossRef - Vaccine containing G protein fragment and recombinant baculovirus expressing M2 protein induces protective immunity to respiratory syncytial virus
Yeong-Min Jo, Jungwoo Kim, Jun Chang
Clinical and Experimental Vaccine Research.2019; 8(1): 43. CrossRef - Recombinant live attenuated influenza vaccine viruses carrying CD8 T-cell epitopes of respiratory syncytial virus protect mice against both pathogens without inflammatory disease
Tatiana Kotomina, Irina Isakova-Sivak, Victoria Matyushenko, Ki-Hye Kim, Youri Lee, Yu-Jin Jung, Sang-Moo Kang, Larisa Rudenko
Antiviral Research.2019; 168: 9. CrossRef - The CD8 T Cell Response to Respiratory Virus Infections
Megan E. Schmidt, Steven M. Varga
Frontiers in Immunology.2018;[Epub] CrossRef
- Coptidis Rhizoma extract inhibits replication of respiratory syncytial virus in vitro and in vivo by inducing antiviral state
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Byeong-Hoon Lee , Kiramage Chathuranga , Md Bashir Uddin , Prasanna Weeratunga , Myun Soo Kim , Won-Kyung Cho , Hong Ik Kim , Jin Yeul Ma , Jong-Soo Lee
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J. Microbiol. 2017;55(6):488-498. Published online May 28, 2017
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DOI: https://doi.org/10.1007/s12275-017-7088-x
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59
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Abstract
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Coptidis Rhizoma is derived from the dried rhizome of Ranun-culaceous plants and is a commonly used traditional Chinese medicine. Although Coptidis Rhizoma is commonly used for its many therapeutic effects, antiviral activity against respi-ratory syncytial virus (RSV) has not been reported in detail. In this study, we evaluated the antiviral activities of Coptidis Rhizoma extract (CRE) against RSV in human respiratory tract cell line (HEp2) and BALB/c mice. An effective dose of CRE significantly reduces the replication of RSV in HEp2 cells and reduces the RSV-induced cell death. This antiviral activity against RSV was through the induction of type I inter-feron-related signaling and the antiviral state in HEp2 cells. More importantly, oral administration of CRE exhibited prophylactic effects in BALB/c mice against RSV. In HPLC analysis, we found the presence of several compounds in the aqueous fraction and among them; we confirmed that pal-matine was related to the antiviral properties and immune- modulation effect. Taken together, an extract of Coptidis Rhi-zoma and its components play roles as immunomodulators and could be a potential source as promising natural antivirals that can confer protection to RSV. These outcomes should encourage further allied studies in other natural products.
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Citations
Citations to this article as recorded by

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Frontiers in Immunology.2023;[Epub] CrossRef - Interventional effect of processing temperature on anti-angiogenesis of Coptis chinensis and screening of active components by UPLC-MS/MS on quail chick chorioallantoic membrane model
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Anti-Infective Agents.2023;[Epub] CrossRef - Refractory Chest Pain in Mild to Moderate Coronavirus Disease 2019 Successfully Treated with Saikanto, a Japanese Traditional Medicine
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The Tohoku Journal of Experimental Medicine.2022; 257(3): 241. CrossRef - Pine Needle Extract Applicable to Topical Treatment for the Prevention of Human Papillomavirus Infection
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Journal of Microbiology and Biotechnology.2021; 31(1): 137. CrossRef - In Silico Target Analysis of Treatment for COVID-19 Using Huang-Lian-Shang-Qing-Wan, a Traditional Chinese Medicine Formula
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International Journal of General Medicine.2021; Volume 14: 9873. CrossRef - Inhibitory Effect of Sargassum fusiforme and Its Components on Replication of Respiratory Syncytial Virus In Vitro and In Vivo
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Frontiers in Pharmacology.2021;[Epub] CrossRef - Systematic screening and characterization of absorbed constituents and in vivo metabolites in rats after oral administration of Rhizoma coptidis using UPLC‐Q‐TOF/MS
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Molecules.2020; 25(21): 5091. CrossRef - Palmatine: A review of pharmacological properties and pharmacokinetics
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Viruses.2018; 10(12): 669. CrossRef - Metabolism of Rhizoma coptidis in Human Urine by Ultra-High-Performance Liquid Chromatography Coupled with High-Resolution Mass Spectrometry
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Research Support, Non-U.S. Gov't
- The effect of dietary bovine colostrum on respiratory syncytial virus infection and immune responses following the infection in the mouse
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Mei Ling Xu , Hyoung Jin Kim , Ga Ram Wi , Hong-Jin Kim
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J. Microbiol. 2015;53(9):661-666. Published online August 27, 2015
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DOI: https://doi.org/10.1007/s12275-015-5353-4
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48
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Abstract
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Human respiratory syncytial virus (hRSV) is the most common
cause of respiratory tract infection among young children
because of immature T cell immunity of them against
hRSV. CD8 T cells play a pivotal role in clearing hRSV and
preventing subsequent infection. We examined the effects
of dietary bovine colostrum on virus infection and CD8 T
cell responses following hRSV infection in the mouse model.
Mice received bovine colostrum for 14 days prior to hRSV
challenge, and lung indexes (severity of symptom) and lung
virus titers were analyzed. In addition, the activation of
CD8 T cells in the bronchoalveolar lavage fluids (BALFs) of
mice receiving bovine colostrum were compared with those
in the BALFs of mice receiving phosphate-buffered saline
(PBS) or ribavirin, post virus challenge. The severity of infection
and lung virus titers were reduced in the mice receiving
bovine colostrum, compared to those receiving PBS.
Moreover CD8 T cell responses were selectively enhanced
in the former. Our results suggest that dietary bovine colostrum
exerts the effects to inhibit hRSV and ameliorate the
symptom by hRSV infection, and enhances the CD8 T cell
response during the hRSV infection.
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Citations
Citations to this article as recorded by

- Improved physical disability and nutritional status by bovine colostrum supplementation in adults with traumatic peri-trochanteric femoral fracture: A randomized, controlled, clinical trial
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Journal Article
- Role of a Third Extracellular Domain of an Ecotropic Receptor in Moloney Murine Leukemia Virus Infection
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Eun Hye Bae , Sung-Han Park , Yong-Tae Jung
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J. Microbiol. 2006;44(4):447-452.
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DOI: https://doi.org/2407 [pii]
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Abstract
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The murine ecotropic retroviral receptor has been demonstrated to function as a mouse cationic amino acid transporter 1 (mCAT1), and is comprised of multiple membranespanning domains. Feral mouse (Mus dunni) cells are not susceptible to infection by the ecotropic Moloney murine leukemia virus (MoMLV), although they can be infected by other ecotropic murine leukemia viruses, including Friend MLV and Rauscher MLV. The relative inability of MoMLV to replicate in M. dunni cells has been attributed to two amino acids (V214 and G236) located within the third extracellular loop of the M. dunni CAT1 receptor (dCAT1). Via the exchange of the third extracellular loop of the mCAT1 cDNA encoding receptor from the permissive mouse and the corresponding portion of cDNA encoding for the nonpermissive M. dunni receptor, we have identified the most critical amino acid residue, which is a glycine located at position 236 within the third extracellular loop of dCAT1.
We also attempted to determine the role of the third extracellular loop of the M. dunni
CAT1 receptor with regard to the formation of the syncytium. The relationship between dCAT1 and virus-induced syncytia was suggested initially by our previous identification of two MLV isolates (S82F in Moloney and S84A in Friend MLV), both of which are uniquely cytopathic in M. dunni cells. In an attempt to determine the relationship existing between dCAT1 and the virally-induced syncytia, we infected 293-dCAT1 or chimeric dCAT1 cells with the S82F pseudotype virus. The S82F pseudotype virus did not induce the formation of syncytia, but did show increased susceptibility to 293 cells expressing dCAT1. The results of our study indicate that S82F-induced syncytium formation may be the result of cell-cell fusion, but not virus-cell fusion.