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  1. Article ; Online: Glycoprotein 2 as a gut gate keeper for mucosal equilibrium between inflammation and immunity.

    Zhang, Zhongwei / Tanaka, Izumi / Nakahashi-Ouchida, Rika / Ernst, Peter B / Kiyono, Hiroshi / Kurashima, Yosuke

    Seminars in immunopathology

    2024  

    Abstract: Glycoprotein 2 (GP2) is a widely distributed protein in the digestive tract, contributing to mucosal barrier maintenance, immune homeostasis, and antigen-specific immune response, while also being linked to inflammatory bowel disease (IBD) pathogenesis. ... ...

    Abstract Glycoprotein 2 (GP2) is a widely distributed protein in the digestive tract, contributing to mucosal barrier maintenance, immune homeostasis, and antigen-specific immune response, while also being linked to inflammatory bowel disease (IBD) pathogenesis. This review sheds light on the extensive distribution of GP2 within the gastrointestinal tract and its intricate interplay with the immune system. Furthermore, the significance of GP2 autoantibodies in diagnosing and categorizing IBD is underscored, alongside the promising therapeutic avenues for modulating GP2 to regulate immunity and maintain mucosal balance.
    Language English
    Publishing date 2024-01-03
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2316828-6
    ISSN 1863-2300 ; 1863-2297
    ISSN (online) 1863-2300
    ISSN 1863-2297
    DOI 10.1007/s00281-023-00999-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Correction: Glycoprotein 2 as a gut gate keeper for mucosal equilibrium between inflammation and immunity.

    Zhang, Zhongwei / Tanaka, Izumi / Nakahashi-Ouchida, Rika / Ernst, Peter B / Kiyono, Hiroshi / Kurashima, Yosuke

    Seminars in immunopathology

    2024  

    Language English
    Publishing date 2024-04-22
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 2316828-6
    ISSN 1863-2300 ; 1863-2297
    ISSN (online) 1863-2300
    ISSN 1863-2297
    DOI 10.1007/s00281-024-01002-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Mucosal vaccines: wisdom from now and then.

    Kiyono, Hiroshi / Yuki, Yoshikazu / Nakahashi-Ouchida, Rika / Fujihashi, Kohtaro

    International immunology

    2021  Volume 33, Issue 12, Page(s) 767–774

    Abstract: The oral and nasal cavities are covered by the mucosal epithelium that starts at the beginning of the aero-digestive tract. These mucosal surfaces are continuously exposed to environmental antigens including pathogens and allergens and are thus equipped ... ...

    Abstract The oral and nasal cavities are covered by the mucosal epithelium that starts at the beginning of the aero-digestive tract. These mucosal surfaces are continuously exposed to environmental antigens including pathogens and allergens and are thus equipped with a mucosal immune system that mediates initial recognition of pathogenicity and initiates pathogen-specific immune responses. At the dawn of our scientific effort to explore the mucosal immune system, dental science was one of the major driving forces as it provided insights into the importance of mucosal immunity and its application for the control of oral infectious diseases. The development of mucosal vaccines for the prevention of dental caries was thus part of a novel approach that contributed to building the scientific foundations of the mucosal immune system. Since then, mucosal immunology and vaccines have gone on a scientific journey to become one of the major entities within the discipline of immunology. Here, we introduce our past and current efforts and future directions for the development of mucosal vaccines, specifically a rice-based oral vaccine (MucoRice) and a nanogel-based nasal vaccine, with the aim of preventing and controlling gastrointestinal and respiratory infectious diseases using the interdisciplinary fusion of mucosal immunology with agricultural science and biomaterial engineering, respectively.
    MeSH term(s) Communicable Diseases/immunology ; Immunity, Mucosal/immunology ; Vaccines/immunology
    Chemical Substances Vaccines
    Language English
    Publishing date 2021-08-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1013745-2
    ISSN 1460-2377 ; 0953-8178
    ISSN (online) 1460-2377
    ISSN 0953-8178
    DOI 10.1093/intimm/dxab056
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Nasal vaccines: solutions for respiratory infectious diseases.

    Nakahashi-Ouchida, Rika / Fujihashi, Kohtaro / Kurashima, Yosuke / Yuki, Yoshikazu / Kiyono, Hiroshi

    Trends in molecular medicine

    2022  Volume 29, Issue 2, Page(s) 124–140

    Abstract: Nasal vaccines induce pathogen-specific dual protective immunity at mucosal surfaces and systemically throughout the body. Consequently, nasal vaccines both prevent pathogen invasion and reduce disease severity. Because of these features, nasal vaccines ... ...

    Abstract Nasal vaccines induce pathogen-specific dual protective immunity at mucosal surfaces and systemically throughout the body. Consequently, nasal vaccines both prevent pathogen invasion and reduce disease severity. Because of these features, nasal vaccines are considered to be a next-generation tool for preventing respiratory infectious diseases, including COVID-19. However, nasal vaccines must overcome key safety concerns given the anatomic proximity of the central nervous system (CNS) via the olfactory bulbs which lie next to the nasal cavity. This review summarizes current efforts to develop safe and effective nasal vaccines and delivery systems, as well as their clinical applications for the prevention of respiratory infections. We also discuss various concerns regarding the safety of nasal vaccines and introduce a system for evaluating them.
    MeSH term(s) Humans ; Administration, Intranasal ; COVID-19/prevention & control ; Vaccines ; Communicable Diseases ; Respiratory Tract Infections/prevention & control ; Immunity, Mucosal
    Chemical Substances Vaccines
    Language English
    Publishing date 2022-11-23
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2036490-8
    ISSN 1471-499X ; 1471-4914
    ISSN (online) 1471-499X
    ISSN 1471-4914
    DOI 10.1016/j.molmed.2022.10.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Cationic pullulan nanogel as a safe and effective nasal vaccine delivery system for respiratory infectious diseases.

    Nakahashi-Ouchida, Rika / Yuki, Yoshikazu / Kiyono, Hiroshi

    Human vaccines & immunotherapeutics

    2018  Volume 14, Issue 9, Page(s) 2189–2193

    Abstract: The mucosal surfaces of the respiratory and gastrointestinal tracts are continuously exposed to countless beneficial and pathologic antigens. These mucosal surfaces are thus equipped with an immune system that is unique from those elsewhere in the body; ... ...

    Abstract The mucosal surfaces of the respiratory and gastrointestinal tracts are continuously exposed to countless beneficial and pathologic antigens. These mucosal surfaces are thus equipped with an immune system that is unique from those elsewhere in the body; this unique system provides the first line of immune surveillance and defense against pathogen invasion. The sophisticated immune induction machinery in the aero-digestive tract involves mucosa-associated lymphoid tissues, including nasopharyngeal- and gut-associated lymphoid tissues, for the generation of antigen-specific humoral and cellular immune responses. Consequently, nasal or oral immunization with an appropriate vaccine delivery vehicle prompts the induction of protective immunity in both the mucosal and systemic compartments, leading to a double layer of protection against pathogens. To harness the benefits of mucosal vaccines, various mucosal antigen delivery vehicles are under development, and a cationic cholesteryl-group-bearing pullulan nanogel (cCHP nanogel) has emerged as a potent nasal vaccine delivery system for the induction of protective immunity against respiratory infections.
    MeSH term(s) Administration, Intranasal ; Drug Carriers/administration & dosage ; Drug Carriers/adverse effects ; Glucans/administration & dosage ; Glucans/adverse effects ; Humans ; Polyethylene Glycols/administration & dosage ; Polyethylene Glycols/adverse effects ; Polyethyleneimine/administration & dosage ; Polyethyleneimine/adverse effects ; Respiratory Tract Infections/prevention & control ; Vaccines/administration & dosage ; Vaccines/adverse effects
    Chemical Substances Drug Carriers ; Glucans ; NanoGel ; Vaccines ; Polyethylene Glycols (3WJQ0SDW1A) ; pullulan (8ZQ0AYU1TT) ; Polyethyleneimine (9002-98-6)
    Language English
    Publishing date 2018-07-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2664176-8
    ISSN 2164-554X ; 2164-5515
    ISSN (online) 2164-554X
    ISSN 2164-5515
    DOI 10.1080/21645515.2018.1461298
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: MucoRice-CTB line 19A, a new marker-free transgenic rice-based cholera vaccine produced in an LED-based hydroponic system.

    Yuki, Yoshikazu / Kurokawa, Shiho / Sugiura, Kotomi / Kashima, Koji / Maruyama, Shinichi / Yamanoue, Tomoyuki / Honma, Ayaka / Mejima, Mio / Takeyama, Natsumi / Kuroda, Masaharu / Kozuka-Hata, Hiroko / Oyama, Masaaki / Masumura, Takehiro / Nakahashi-Ouchida, Rika / Fujihashi, Kohtaro / Hiraizumi, Takashi / Goto, Eiji / Kiyono, Hiroshi

    Frontiers in plant science

    2024  Volume 15, Page(s) 1342662

    Abstract: We previously established the selection-marker-free rice-based oral cholera vaccine (MucoRice-CTB) line 51A for human use ... ...

    Abstract We previously established the selection-marker-free rice-based oral cholera vaccine (MucoRice-CTB) line 51A for human use by
    Language English
    Publishing date 2024-03-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2024.1342662
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Development of a nanogel-based nasal vaccine as a novel antigen delivery system.

    Nakahashi-Ouchida, Rika / Yuki, Yoshikazu / Kiyono, Hiroshi

    Expert review of vaccines

    2017  Volume 16, Issue 12, Page(s) 1231–1240

    Abstract: Introduction: Nasal vaccination is one of the most effective immunization methods because it can induce effective antigen-specific immune responses not only at the mucosal site of administration but also at distant mucosal surfaces, as well as in the ... ...

    Abstract Introduction: Nasal vaccination is one of the most effective immunization methods because it can induce effective antigen-specific immune responses not only at the mucosal site of administration but also at distant mucosal surfaces, as well as in the systemic compartment. Based on this advantage, many nasal vaccines are being developed and some have been licensed and marketed for clinical use. However, some have been withdrawn because of unacceptable adverse events such as inactivated influenza vaccine administrated with a heat-labile enterotoxin of Escherichia coli as an adjuvant. Thus, it is important to consider both the efficacy and safety of nasal vaccines. Areas covered: This review describes the benefits of cholesteryl group-bearing pullulan (CHP) nanogels for nasal vaccine delivery and vaccine development identified on Pubmed database with the term 'Nanogel-based nasal vaccine'. Expert commentary: CHP nanogels have been developed as novel drug delivery system, and a cationic CHP nanogels have been demonstrated to induce effective immunity as a nasal vaccine antigen carrier. Since vaccine antigens incorporated into CHP nanogels have exhibited no brain deposition after nasal administration in mice and nonhuman primates, the vaccine seems safe, and could be a promising new delivery system.
    MeSH term(s) Administration, Intranasal ; Animals ; Drug Delivery Systems ; Drug Evaluation, Preclinical ; Mice ; Polyethylene Glycols/administration & dosage ; Polyethylene Glycols/adverse effects ; Polyethyleneimine/administration & dosage ; Polyethyleneimine/adverse effects ; Primates ; Vaccines/administration & dosage ; Vaccines/adverse effects ; Vaccines/immunology
    Chemical Substances NanoGel ; Vaccines ; Polyethylene Glycols (30IQX730WE) ; Polyethyleneimine (9002-98-6)
    Language English
    Publishing date 2017
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2181284-6
    ISSN 1744-8395 ; 1476-0584
    ISSN (online) 1744-8395
    ISSN 1476-0584
    DOI 10.1080/14760584.2017.1395702
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Biodistribution assessment of cationic pullulan nanogel, a nasal vaccine delivery system, in mice and non-human primates.

    Yuki, Yoshikazu / Harada, Norihiro / Sawada, Shin-Ichi / Uchida, Yohei / Nakahashi-Ouchida, Rika / Mori, Hiromi / Yamanoue, Tomoyuki / Machita, Tomonori / Kanazawa, Masakatsu / Fukumoto, Dai / Ohba, Hiroyuki / Miyazaki, Takashi / Akiyoshi, Kazunari / Fujihashi, Kohtaro / Kiyono, Hiroshi

    Vaccine

    2023  Volume 41, Issue 34, Page(s) 4941–4949

    Abstract: Cationic cholesteryl-group-bearing pullulan nanogel (cCHP-nanogel) is an effective drug-delivery system for nasal vaccines. However, cCHP-nanogel-based nasal vaccines might access the central nervous system due to its close proximity via the olfactory ... ...

    Abstract Cationic cholesteryl-group-bearing pullulan nanogel (cCHP-nanogel) is an effective drug-delivery system for nasal vaccines. However, cCHP-nanogel-based nasal vaccines might access the central nervous system due to its close proximity via the olfactory bulb in the nasal cavity. Using real-time quantitative tracking of the nanogel-based nasal botulinum neurotoxin and pneumococcal vaccines, we previously confirmed the lack of deposition of vaccine antigen in the cerebrum or olfactory bulbs of mice and non-human primates (NHPs), rhesus macaques. Here, we used positron emission tomography to investigate the biodistribution of the drug-delivery system itself, cCHP-nanogel after mice and NHPs were nasally administered with
    MeSH term(s) Animals ; Nanogels ; Macaca mulatta ; Tissue Distribution ; Drug Delivery Systems ; Administration, Intranasal ; Pneumococcal Vaccines
    Chemical Substances polyethylene glycol polyethyleneimine nanogel ; Nanogels ; pullulan (8ZQ0AYU1TT) ; Pneumococcal Vaccines
    Language English
    Publishing date 2023-06-27
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2023.06.065
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Biodistribution assessment of cationic pullulan nanogel, a nasal vaccine delivery system, in mice and non-human primates

    Yuki, Yoshikazu / Harada, Norihiro / Sawada, Shin-ichi / Uchida, Yohei / Nakahashi-Ouchida, Rika / Mori, Hiromi / Yamanoue, Tomoyuki / Machita, Tomonori / Kanazawa, Masakatsu / Fukumoto, Dai / Ohba, Hiroyuki / Miyazaki, Takashi / Akiyoshi, Kazunari / Fujihashi, Kohtaro / Kiyono, H.

    Vaccine. 2023 June 27,

    2023  

    Abstract: Cationic cholesteryl-group–bearing pullulan nanogel (cCHP-nanogel) is an effective drug-delivery system for nasal vaccines. However, cCHP-nanogel-based nasal vaccines might access the central nervous system due to its close proximity via the olfactory ... ...

    Abstract Cationic cholesteryl-group–bearing pullulan nanogel (cCHP-nanogel) is an effective drug-delivery system for nasal vaccines. However, cCHP-nanogel-based nasal vaccines might access the central nervous system due to its close proximity via the olfactory bulb in the nasal cavity. Using real-time quantitative tracking of the nanogel-based nasal botulinum neurotoxin and pneumococcal vaccines, we previously confirmed the lack of deposition of vaccine antigen in the cerebrum or olfactory bulbs of mice and non-human primates (NHPs), rhesus macaques. Here, we used positron emission tomography to investigate the biodistribution of the drug-delivery system itself, cCHP-nanogel after mice and NHPs were nasally administered with ¹⁸F-labeled cCHP nanogel. The results generated by the PET analysis of rhesus macaques were consistent with the direct counting of radioactivity due to ¹⁸F or ¹¹¹In in dissected mouse tissues. Thus, no depositions of cCHP-nanogel were noted in the cerebrum, olfactory bulbs, or eyes of both species after nasal administration of the radiolabeled cCHP-nanogel compound. Our findings confirm the safe biodistribution of the cCHP-nanogel-based nasal vaccine delivery system in mice and NHPs.
    Keywords Streptococcus pneumoniae ; antigens ; botulinum toxin ; cerebrum ; intranasal administration ; mice ; nanogels ; nasal cavity ; olfactory bulb ; positron-emission tomography ; pullulan ; radioactivity ; radiolabeling ; vaccines ; Nasal vaccine ; Drug delivery system ; Positron emission tomography (PET) ; Biodistribution ; Mouse ; Non-human primate ; cCHP nanogel ; CDI ; CHI ; CNS ; CHP ; DDS ; DOTA-NHS-ester ; HPLC ; K[2,2,2] ; LNP ; MRI ; NALT ; NHP ; OB ; PBS ; percent ID (%ID) ; PET ; PspA ; SFB ; SUV ; TSTU
    Language English
    Dates of publication 2023-0627
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2023.06.065
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Cationic-nanogel nasal vaccine containing the ectodomain of RSV-small hydrophobic protein induces protective immunity in rodents.

    Umemoto, Shingo / Nakahashi-Ouchida, Rika / Yuki, Yoshikazu / Kurokawa, Shiho / Machita, Tomonori / Uchida, Yohei / Mori, Hiromi / Yamanoue, Tomoyuki / Shibata, Takehiko / Sawada, Shin-Ichi / Ishige, Kazuya / Hirano, Takashi / Fujihashi, Kohtaro / Akiyoshi, Kazunari / Kurashima, Yosuke / Tokuhara, Daisuke / Ernst, Peter B / Suzuki, Masashi / Kiyono, Hiroshi

    NPJ vaccines

    2023  Volume 8, Issue 1, Page(s) 106

    Abstract: Respiratory syncytial virus (RSV) is a leading cause of upper and lower respiratory tract infection, especially in children and the elderly. Various vaccines containing the major transmembrane surface proteins of RSV (proteins F and G) have been tested; ... ...

    Abstract Respiratory syncytial virus (RSV) is a leading cause of upper and lower respiratory tract infection, especially in children and the elderly. Various vaccines containing the major transmembrane surface proteins of RSV (proteins F and G) have been tested; however, they have either afforded inadequate protection or are associated with the risk of vaccine-enhanced disease (VED). Recently, F protein-based maternal immunization and vaccines for elderly patients have shown promising results in phase III clinical trials, however, these vaccines have been administered by injection. Here, we examined the potential of using the ectodomain of small hydrophobic protein (SHe), also an RSV transmembrane surface protein, as a nasal vaccine antigen. A vaccine was formulated using our previously developed cationic cholesteryl-group-bearing pullulan nanogel as the delivery system, and SHe was linked in triplicate to pneumococcal surface protein A as a carrier protein. Nasal immunization of mice and cotton rats induced both SHe-specific serum IgG and mucosal IgA antibodies, preventing viral invasion in both the upper and lower respiratory tracts without inducing VED. Moreover, nasal immunization induced greater protective immunity against RSV in the upper respiratory tract than did systemic immunization, suggesting a critical role for mucosal RSV-specific IgA responses in viral elimination at the airway epithelium. Thus, our nasal vaccine induced effective protection against RSV infection in the airway mucosa and is therefore a promising vaccine candidate for further development.
    Language English
    Publishing date 2023-07-24
    Publishing country England
    Document type Journal Article
    ISSN 2059-0105
    ISSN (online) 2059-0105
    DOI 10.1038/s41541-023-00700-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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