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  1. Article: In Situ Delivery and Production System (

    Taniguchi, Shun'ichiro

    Journal of personalized medicine

    2021  Volume 11, Issue 6

    Abstract: To selectively and continuously produce anti-cancer molecules specifically in malignant tumors, we have established an in situ delivery and production system ( ...

    Abstract To selectively and continuously produce anti-cancer molecules specifically in malignant tumors, we have established an in situ delivery and production system (
    Language English
    Publishing date 2021-06-17
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2662248-8
    ISSN 2075-4426
    ISSN 2075-4426
    DOI 10.3390/jpm11060566
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: In Situ Delivery and Production System ( i DPS) of Anti-Cancer Molecules with Gene-Engineered Bifidobacterium

    Shun’ichiro Taniguchi

    Journal of Personalized Medicine, Vol 11, Iss 566, p

    2021  Volume 566

    Abstract: To selectively and continuously produce anti-cancer molecules specifically in malignant tumors, we have established an in situ delivery and production system ( i DPS) with Bifidobacterium as a micro-factory of various anti-cancer agents. By focusing on ... ...

    Abstract To selectively and continuously produce anti-cancer molecules specifically in malignant tumors, we have established an in situ delivery and production system ( i DPS) with Bifidobacterium as a micro-factory of various anti-cancer agents. By focusing on the characteristic hypoxia in cancer tissue for a tumor-specific target, we employed a gene-engineered obligate anaerobic and non-pathogenic bacterium, Bifidobacterium , as a tool for systemic drug administration. This review presents and discusses the anti-tumor effects and safety of the i DPS production of numerous anti-cancer molecules and addresses the problems to be improved by directing attention mainly to the hallmark vasculature and so-called enhanced permeability and retention effect of tumors.
    Keywords solid cancer ; microenvironment ; hypoxia ; cancer therapy ; DDS ; anaerobic bacteria ; Medicine ; R
    Language English
    Publishing date 2021-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Potentiated antitumor effects of APS001F/5-FC combined with anti-PD-1 antibody in a CT26 syngeneic mouse model.

    Shioya, Koichiro / Matsumura, Tomio / Seki, Yuji / Shimizu, Hitomi / Nakamura, Takaaki / Taniguchi, Shun'ichiro

    Bioscience, biotechnology, and biochemistry

    2021  Volume 85, Issue 2, Page(s) 324–331

    Abstract: APS001F is a strain of Bifidobacterium longum genetically engineered to express cytosine deaminase that converts 5-fluorocytosine (5-FC) to 5-fluorouracil. In the present study, antitumor effects of APS001F plus 5-FC (APS001F/5-FC) in combination with ... ...

    Abstract APS001F is a strain of Bifidobacterium longum genetically engineered to express cytosine deaminase that converts 5-fluorocytosine (5-FC) to 5-fluorouracil. In the present study, antitumor effects of APS001F plus 5-FC (APS001F/5-FC) in combination with anti-PD-1 monoclonal antibody were investigated using a CT26 syngeneic mouse model. Both of dosing of APS001F/5-FC before and after anti-PD-1 mAb in the combination dosing exhibited antitumor effects as well as prolonged survival over the nontreated control. The survival rate in the combination therapy significantly increased over the monotherapy with APS001F/5-FC and that with anti-PD-1 mAb. Regulatory T cells among CD4+ T cells in tumor decreased in the combination therapy, while the ratio of CD8+ T cells was maintained in all groups. Taken these results together, APS001F/5-FC not only demonstrates a direct antitumor activity, but also immunomodulatory effects once localized in the hypoxic region of the tumor, which allows anti-PD-1 mAb to exert potentiated antitumor effects.
    MeSH term(s) Animals ; Antibodies, Monoclonal/immunology ; Antineoplastic Agents/pharmacology ; Bifidobacterium longum/genetics ; Bifidobacterium longum/physiology ; CD8-Positive T-Lymphocytes/drug effects ; CD8-Positive T-Lymphocytes/immunology ; Cell Line, Tumor ; Flucytosine/pharmacology ; Genetic Engineering ; Mice ; Programmed Cell Death 1 Receptor/immunology
    Chemical Substances Antibodies, Monoclonal ; Antineoplastic Agents ; Programmed Cell Death 1 Receptor ; Flucytosine (D83282DT06)
    Language English
    Publishing date 2021-02-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1093/bbb/zbaa057
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Activation of the inflammasome drives peritoneal deterioration in a mouse model of peritoneal fibrosis.

    Kadoya, Hiroyuki / Hirano, Akira / Umeno, Reina / Kajimoto, Eriko / Iwakura, Tsukasa / Kondo, Megumi / Wada, Yoshihisa / Kidokoro, Kengo / Kishi, Seiji / Nagasu, Hajime / Sasaki, Tamaki / Taniguchi, Shun'ichiro / Takahashi, Masafumi / Kashihara, Naoki

    FASEB journal : official publication of the Federation of American Societies for Experimental Biology

    2023  Volume 37, Issue 9, Page(s) e23129

    Abstract: During peritoneal dialysis (PD), the peritoneum is exposed to a bioincompatible dialysate, deteriorating the tissue and limiting the long-term effectiveness of PD. Peritoneal fibrosis is triggered by chronic inflammation induced by a variety of stimuli, ... ...

    Abstract During peritoneal dialysis (PD), the peritoneum is exposed to a bioincompatible dialysate, deteriorating the tissue and limiting the long-term effectiveness of PD. Peritoneal fibrosis is triggered by chronic inflammation induced by a variety of stimuli, including peritonitis. Exposure to PD fluid alters peritoneal macrophages phenotype. Inflammasome activation triggers chronic inflammation. First, it was determined whether inflammasome activation causes peritoneal deterioration. In the in vivo experiments, the increased expression of the inflammasome components, caspase-1 activity, and concomitant overproduction of IL-1β and IL-18 were observed in a mouse model of peritoneal fibrosis. ASC-positive and F4/80-positive cells colocalized in the subperitoneal mesothelial cell layer. These macrophages expressed high CD44 levels indicating that the CD44-positive macrophages contribute to developing peritoneal deterioration. Furthermore, intravital imaging of the peritoneal microvasculature demonstrated that the circulating CD44-positive leukocytes may contribute to peritoneal fibrosis. Bone marrow transplantation in ASC-deficient mice suppressed inflammasome activation, thereby attenuating peritoneal fibrosis in a high glucose-based PD solution-injected mouse model. Our results suggest inflammasome activation in CD44-positive macrophages may be involved in developing peritoneal fibrosis. The inflammasome-derived pro-inflammatory cytokines might therefore serve as new biomarkers for developing encapsulating peritoneal sclerosis.
    MeSH term(s) Animals ; Mice ; Peritoneum ; Peritoneal Fibrosis ; Inflammasomes ; Peritonitis ; Disease Models, Animal ; Inflammation
    Chemical Substances Inflammasomes
    Language English
    Publishing date 2023-08-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639186-2
    ISSN 1530-6860 ; 0892-6638
    ISSN (online) 1530-6860
    ISSN 0892-6638
    DOI 10.1096/fj.202201777RRR
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Tumor-Targeting Therapy Using Gene-Engineered Anaerobic-Nonpathogenic Bifidobacterium longum.

    Taniguchi, Shun'ichiro / Shimatani, Yuko / Fujimori, Minoru

    Methods in molecular biology (Clifton, N.J.)

    2016  Volume 1409, Page(s) 49–60

    Abstract: Despite great progress in molecular-targeting drugs for cancer treatment, there are problems of disease recurrence due to cancer-cell resistance to those drugs, derived from the heterogeneity of tumors. On one hand, the low-oxygen microenvironment ... ...

    Abstract Despite great progress in molecular-targeting drugs for cancer treatment, there are problems of disease recurrence due to cancer-cell resistance to those drugs, derived from the heterogeneity of tumors. On one hand, the low-oxygen microenvironment present in malignant tumor tissues has been regarded as a source of resistance of cancer cells against conventional therapie, such as radiation and chemotherapy. To overcome these problems, we have been developing a system to selectively deliver a large amount of anticancer drugs to malignant tumors by making use of the limiting factor, hypoxia, in tumors. Our strategy is to use hypoxia as a selective target. Here, we show methods and protocols using the nonpathogenic obligate anaerobic Bifidobacterium longum as a drug-delivery system (DDS) to target anaerobic tumor tissue.
    MeSH term(s) Animals ; Bifidobacterium/genetics ; Bifidobacterium/metabolism ; Disease Models, Animal ; Drug Delivery Systems ; Genetic Engineering ; Humans ; Hypoxia/metabolism ; Immunohistochemistry ; Male ; Mice ; Neoplasms/metabolism ; Neoplasms/pathology ; Neoplasms/therapy ; Oxygen Consumption ; Rats ; Transplantation, Isogeneic ; Xenograft Model Antitumor Assays
    Language English
    Publishing date 2016
    Publishing country United States
    Document type Journal Article
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-4939-3515-4_5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: In situ delivery and production system of trastuzumab scFv with Bifidobacterium.

    Kikuchi, Takeshi / Shimizu, Hitomi / Akiyama, Yasuto / Taniguchi, Shun'ichiro

    Biochemical and biophysical research communications

    2017  Volume 493, Issue 1, Page(s) 306–312

    Abstract: A monoclonal antibody targeting human epidermal growth factor receptor-2 (HER2), trastuzumab has become a standard treatment for HER2-positive breast cancer. Recent advancements in antibody engineering have enabled the efficient generation of the ... ...

    Abstract A monoclonal antibody targeting human epidermal growth factor receptor-2 (HER2), trastuzumab has become a standard treatment for HER2-positive breast cancer. Recent advancements in antibody engineering have enabled the efficient generation of the trastuzumab single-chain variable fragment (scFv). In this study, we genetically engineered Bifidobacterium, a bacterial strain shown to accumulate safely and selectively in hypoxic tumor sites by intravenous (iv) injection, to express and secrete the trastuzumab scFv. The recombinant scFv bound to cell surface HER2 and inhibited in vitro growth of HER2-positive human cancer cells. Moreover, iv-injected recombinant bacteria specifically localized and secreted trastuzumab scFv in xenografted human HER2-positive tumors and consequently inhibited tumor growth. The development and results of this novel in situ delivery and production system for trastuzumab scFv with Bifidobacterium represents a promising avenue for future application in cancer treatment.
    MeSH term(s) Bifidobacterium/physiology ; Breast Neoplasms/microbiology ; Breast Neoplasms/pathology ; Breast Neoplasms/therapy ; Cell Line, Tumor ; Cell Survival/drug effects ; Humans ; Immunoglobulin Variable Region/administration & dosage ; Receptor, ErbB-2/metabolism ; Single-Chain Antibodies/administration & dosage ; Trastuzumab/administration & dosage ; Treatment Outcome
    Chemical Substances Immunoglobulin Variable Region ; Single-Chain Antibodies ; ERBB2 protein, human (EC 2.7.10.1) ; Receptor, ErbB-2 (EC 2.7.10.1) ; Trastuzumab (P188ANX8CK)
    Language English
    Publishing date 2017-11-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2017.09.026
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Endothelial Dysfunction Accelerates Impairment of Mitochondrial Function in Ageing Kidneys via Inflammasome Activation.

    Wada, Yoshihisa / Umeno, Reina / Nagasu, Hajime / Kondo, Megumi / Tokuyama, Atsuyuki / Kadoya, Hiroyuki / Kidokoro, Kengo / Taniguchi, Shun'ichiro / Takahashi, Masafumi / Sasaki, Tamaki / Kashihara, Naoki

    International journal of molecular sciences

    2021  Volume 22, Issue 17

    Abstract: Chronic kidney disease is a common problem in the elderly and is associated with increased mortality. We have reported on the role of nitric oxide, which is generated from endothelial nitric oxide synthase (eNOS), in the progression of aged kidneys. To ... ...

    Abstract Chronic kidney disease is a common problem in the elderly and is associated with increased mortality. We have reported on the role of nitric oxide, which is generated from endothelial nitric oxide synthase (eNOS), in the progression of aged kidneys. To elucidate the role of endothelial dysfunction and the lack of an eNOS-NO pathway in ageing kidneys, we conducted experiments using eNOS and ASC-deficient mice. C57B/6 J mice (wild type (WT)),
    MeSH term(s) Aging ; Animals ; Endothelium/enzymology ; Endothelium/metabolism ; Endothelium/physiopathology ; Inflammasomes ; Kidney/physiopathology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic ; Mitochondria/metabolism ; Mitochondria/physiology ; Nitric Oxide/metabolism ; Nitric Oxide Synthase Type III/metabolism ; Vascular Diseases/physiopathology
    Chemical Substances Inflammasomes ; Nitric Oxide (31C4KY9ESH) ; Nitric Oxide Synthase Type III (EC 1.14.13.39)
    Language English
    Publishing date 2021-08-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms22179269
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Suppression of cancer phenotypes through a multifunctional actin-binding protein, calponin, that attacks cancer cells and simultaneously protects the host from invasion.

    Taniguchi, Shun'ichiro

    Cancer science

    2005  Volume 96, Issue 11, Page(s) 738–746

    Abstract: Quantitative and/or qualitative alteration of actin cytoskeletal molecules, involved in the regulation of cellular dynamic functions, should be intimately related with cancer phenotypes. Based on several lines of experimental evidence from our group, and ...

    Abstract Quantitative and/or qualitative alteration of actin cytoskeletal molecules, involved in the regulation of cellular dynamic functions, should be intimately related with cancer phenotypes. Based on several lines of experimental evidence from our group, and others, this report proposes a strategy to simultaneously attack cancer cells and protect the host from cancer invasion, with one molecule. Calponin h1, an actin-stabilizing protein that is also intimately related to signal transduction, is very often suppressed in vascular smooth muscle cells of malignant human tumors and in mesothelial cells by coexisting cancer cells. We generated mice deficient for calponin h1, exhibiting fragility in blood vessels and peritoneal membranes. Hematogenous cancer metastasis occurred more easily in the calponin h1-deficient mice than in wild-type mice, and the peritoneal dissemination was extremely enhanced. The fragility was rescued by the exogenous introduction of the calponin h1 gene into mesothelial cells of the peritoneum. Furthermore, calponin h1 gene transfer into several transformed cell lines resulted in a suppression of malignancy. The peritoneal dissemination of intraperitoneally-injected B16-F10 cells was suppressed by the calponin h1 gene, given to target both cancer cells and the mesothelial cells of the host. The multifunctional nature of the molecule, as a machinery player of cytoskeleton and mediator of signal transduction, probably resulted in a favorable recipient-discriminating effect on cancerous and normal cells. Thus, we believe that if we use adequate multifunctional molecules for therapy, it is possible to simultaneously suppress cancer phenotypes and protect normal cells from the attack of cancer cells.
    MeSH term(s) Animals ; CARD Signaling Adaptor Proteins ; Calcium-Binding Proteins/biosynthesis ; Calcium-Binding Proteins/genetics ; Calcium-Binding Proteins/physiology ; Cell Transformation, Neoplastic ; Chemoprevention ; Cytoskeletal Proteins/physiology ; Down-Regulation ; Gene Transfer Techniques ; Humans ; Mice ; Mice, Knockout ; Microfilament Proteins ; Neoplasm Invasiveness/physiopathology ; Neoplasm Invasiveness/prevention & control ; Neoplasm Metastasis ; Neoplasms, Experimental ; Neovascularization, Pathologic ; Phenotype ; Signal Transduction ; Calponins
    Chemical Substances CARD Signaling Adaptor Proteins ; Calcium-Binding Proteins ; Cytoskeletal Proteins ; Microfilament Proteins ; PYCARD protein, human
    Language English
    Publishing date 2005-11-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2111204-6
    ISSN 1347-9032
    ISSN 1347-9032
    DOI 10.1111/j.1349-7006.2005.00118.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Cutting Edge: G Protein Subunit β 1 Negatively Regulates NLRP3 Inflammasome Activation.

    Murakami, Tomohiko / Ruengsinpinya, Lerdluck / Nakamura, Eriko / Takahata, Yoshifumi / Hata, Kenji / Okae, Hiroaki / Taniguchi, Shun'ichiro / Takahashi, Masafumi / Nishimura, Riko

    Journal of immunology (Baltimore, Md. : 1950)

    2019  Volume 202, Issue 7, Page(s) 1942–1947

    Abstract: The NLRP3 inflammasome has important roles in the pathogenesis of various inflammatory diseases. However, the regulatory mechanisms of the NLRP3 inflammasome are not fully understood. In this study, we attempted to identify molecules that interact with ... ...

    Abstract The NLRP3 inflammasome has important roles in the pathogenesis of various inflammatory diseases. However, the regulatory mechanisms of the NLRP3 inflammasome are not fully understood. In this study, we attempted to identify molecules that interact with NLRP3 upon its activation. We identified G protein subunit β 1 (GNB1), a downstream molecule of G protein-coupled receptors (GPCRs), which regulates the NLRP3 inflammasome activation. GNB1 was physically associated with NLRP3 via the pyrin domain of NLRP3. Activation of the NLRP3 inflammasome was enhanced in GNB1-knockdown or GNB1-deficient murine macrophages, although a lack of GNB1 did not affect activation of the AIM2 inflammasome. ASC oligomerization induced by NLRP3 was enhanced by GNB1 deficiency. Conversely, NLRP3-dependent ASC oligomerization was inhibited by the overexpression of GNB1. This study indicates that GNB1 negatively regulates NLRP3 inflammasome activation by suppressing NLRP3-dependent ASC oligomerization, and it provides a regulatory mechanism of the NLRP3 inflammasome.
    MeSH term(s) Animals ; GTP-Binding Protein beta Subunits/immunology ; Inflammasomes/immunology ; Inflammation/immunology ; Macrophages/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; NLR Family, Pyrin Domain-Containing 3 Protein/immunology
    Chemical Substances GTP-Binding Protein beta Subunits ; Gnb1 protein, mouse ; Inflammasomes ; NLR Family, Pyrin Domain-Containing 3 Protein ; Nlrp3 protein, mouse
    Language English
    Publishing date 2019-02-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3056-9
    ISSN 1550-6606 ; 0022-1767 ; 1048-3233 ; 1047-7381
    ISSN (online) 1550-6606
    ISSN 0022-1767 ; 1048-3233 ; 1047-7381
    DOI 10.4049/jimmunol.1801388
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Inflammasome and Fas-Mediated IL-1β Contributes to Th17/Th1 Cell Induction in Pathogenic Bacterial Infection In Vivo.

    Uchiyama, Ryosuke / Yonehara, Shin / Taniguchi, Shun'ichiro / Ishido, Satoshi / Ishii, Ken J / Tsutsui, Hiroko

    Journal of immunology (Baltimore, Md. : 1950)

    2017  Volume 199, Issue 3, Page(s) 1122–1130

    Abstract: ... ...

    Abstract CD4
    MeSH term(s) Animals ; Apoptosis Regulatory Proteins/deficiency ; Apoptosis Regulatory Proteins/genetics ; Apoptosis Regulatory Proteins/metabolism ; CARD Signaling Adaptor Proteins ; Cell Differentiation ; Inflammasomes/immunology ; Interleukin-1beta/administration & dosage ; Interleukin-1beta/immunology ; Listeria monocytogenes/immunology ; Listeria monocytogenes/pathogenicity ; Listeriosis/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Nuclear Receptor Subfamily 1, Group F, Member 3/genetics ; Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism ; Receptors, Interleukin-1 Type I/genetics ; Receptors, Interleukin-1 Type I/immunology ; Spleen/immunology ; T-Box Domain Proteins/genetics ; T-Box Domain Proteins/metabolism ; Th1 Cells/immunology ; Th17 Cells/immunology ; fas Receptor/deficiency ; fas Receptor/genetics ; fas Receptor/metabolism
    Chemical Substances Apoptosis Regulatory Proteins ; CARD Signaling Adaptor Proteins ; Fas protein, mouse ; IL1R1 protein, mouse ; Inflammasomes ; Interleukin-1beta ; Nuclear Receptor Subfamily 1, Group F, Member 3 ; Pycard protein, mouse ; Receptors, Interleukin-1 Type I ; T-Box Domain Proteins ; T-box transcription factor TBX21 ; fas Receptor
    Language English
    Publishing date 2017-08-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3056-9
    ISSN 1550-6606 ; 0022-1767 ; 1048-3233 ; 1047-7381
    ISSN (online) 1550-6606
    ISSN 0022-1767 ; 1048-3233 ; 1047-7381
    DOI 10.4049/jimmunol.1601373
    Database MEDical Literature Analysis and Retrieval System OnLINE

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