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  1. Article ; Online: Autoxidation of ascorbate mediates lysine

    Yoshitake, Jun / Shibata, Takahiro / Chikazawa, Miho / Uchida, Koji

    Free radical research

    2023  Volume 56, Issue 11-12, Page(s) 749–759

    Abstract: ... ...

    Abstract Protein
    MeSH term(s) Mice ; Animals ; Humans ; Lysine ; Mice, Inbred MRL lpr ; Proteins/metabolism ; Oxidation-Reduction ; Glyoxal
    Chemical Substances Lysine (K3Z4F929H6) ; glycolaldehyde (W0A0XPU08U) ; Proteins ; Glyoxal (50NP6JJ975)
    Language English
    Publishing date 2023-02-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 1194130-3
    ISSN 1029-2470 ; 1071-5762
    ISSN (online) 1029-2470
    ISSN 1071-5762
    DOI 10.1080/10715762.2023.2174865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A Review of Treatment Methods Focusing on Human Induced Pluripotent Stem Cell-Derived Neural Stem/Progenitor Cell Transplantation for Chronic Spinal Cord Injury.

    Shibata, Takahiro / Tashiro, Syoichi / Nakamura, Masaya / Okano, Hideyuki / Nagoshi, Narihito

    Medicina (Kaunas, Lithuania)

    2023  Volume 59, Issue 7

    Abstract: Cell transplantation therapy using human induced pluripotent stem cell-derived neural stem/progenitor cells (hiPSC-NS/PCs) has attracted attention as a regenerative therapy for spinal cord injury (SCI), and its efficacy in treating the subacute phase of ... ...

    Abstract Cell transplantation therapy using human induced pluripotent stem cell-derived neural stem/progenitor cells (hiPSC-NS/PCs) has attracted attention as a regenerative therapy for spinal cord injury (SCI), and its efficacy in treating the subacute phase of SCI has been reported in numerous studies. However, few studies have focused on treatment in the chronic phase, which accounts for many patients, suggesting that there are factors that are difficult to overcome in the treatment of chronic SCI. The search for therapeutic strategies that focus on chronic SCI is fraught with challenges, and the combination of different therapies is thought to be the key to a solution. In addition, many issues remain to be addressed, including the investigation of therapeutic approaches for more severe injury models of chronic SCI and the acquisition of practical motor function. This review summarizes the current progress in regenerative therapy for SCI and discusses the prospects for regenerative medicine, particularly in animal models of chronic SCI.
    MeSH term(s) Animals ; Humans ; Induced Pluripotent Stem Cells/transplantation ; Cell Differentiation ; Spinal Cord Injuries/therapy ; Neural Stem Cells/transplantation ; Stem Cell Transplantation/methods ; Spinal Cord
    Language English
    Publishing date 2023-07-01
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2188113-3
    ISSN 1648-9144 ; 1010-660X
    ISSN (online) 1648-9144
    ISSN 1010-660X
    DOI 10.3390/medicina59071235
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: 15-Deoxy-Δ¹²,¹⁴-prostaglandin J₂ as an electrophilic mediator.

    Shibata, Takahiro

    Bioscience, biotechnology, and biochemistry

    2015  Volume 79, Issue 7, Page(s) 1044–1049

    Abstract: Lipid-derived electrophilic molecules are endogenously generated and are causally involved in many pathophysiological effects. Prostaglandin D2, a major cyclooxygenase product in a variety of tissues and cells, readily undergoes dehydration to yield the ... ...

    Abstract Lipid-derived electrophilic molecules are endogenously generated and are causally involved in many pathophysiological effects. Prostaglandin D2, a major cyclooxygenase product in a variety of tissues and cells, readily undergoes dehydration to yield the J-series PGs such as 15-deoxy-Δ(12,14)-PGJ2 (15d-PGJ2). Because of the electrophilic α,β-unsaturated ketone moiety present in its cyclopentenone ring, 15d-PGJ2 acts as an endogenous electrophile. 15d-PGJ2 can covalently react via the Michael addition reaction with critical cellular nucleophiles, such as the free cysteine residues of proteins that play a key role in the regulation of the intracellular signaling pathways. Covalent modification of cellular proteins by 15d-PGJ2 may be one of the most important mechanisms by which 15d-PGJ2 induces many biological responses involved in the pathophysiological effects associated with inflammation. This current review is intended to provide a comprehensive summary of 15d-PGJ2 as an endogenous electrophilic mediator of biological activities.
    MeSH term(s) Animals ; Antioxidants/metabolism ; Apoptosis/physiology ; Humans ; Inflammation/immunology ; Inflammation/metabolism ; Oxidation-Reduction ; Oxidative Stress ; Prostaglandin D2/analogs & derivatives ; Prostaglandin D2/chemistry ; Prostaglandin D2/immunology ; Prostaglandin D2/metabolism ; Proteins/metabolism ; Signal Transduction
    Chemical Substances 15-deoxy-delta(12,14)-prostaglandin J2 ; Antioxidants ; Proteins ; Prostaglandin D2 (RXY07S6CZ2)
    Language English
    Publishing date 2015
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1080/09168451.2015.1012149
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Protein adductomics: A comprehensive analysis of protein modifications by electrophiles.

    Shibata, Takahiro / Uchida, Koji

    Free radical biology & medicine

    2019  Volume 144, Page(s) 218–222

    Abstract: Human individuals are continually exposed to various exogenous and endogenous reactive electrophiles, which readily react with nucleophilic biomacromolecules, such as protein, and form a variety of covalent adducts. The covalent modifications of protein ... ...

    Abstract Human individuals are continually exposed to various exogenous and endogenous reactive electrophiles, which readily react with nucleophilic biomacromolecules, such as protein, and form a variety of covalent adducts. The covalent modifications of protein are thought to be involved in various physiological and pathological processes. Recently, the "adductome", a new concept that represents the totality of covalent adducts bound to nucleophilic biomolecules, has been offered as a useful technique for characterizing essentially all reactive electrophilic compounds in biological samples. The primary advantage of this approach is that non-targeted comprehensive analysis can readily be extended to investigate covalent adduct pattern of different situation of exposure and thereby makes it possible to detect/identify not only known but also unknown adducts. In this review, we provide a summary of the concept and methodology of protein adductomics, especially focusing on redox protein adductomics.
    MeSH term(s) Aldehydes/chemistry ; Cell Membrane/chemistry ; Cell Membrane/metabolism ; Cell Membrane/ultrastructure ; DNA Adducts/chemistry ; DNA Adducts/metabolism ; Eukaryotic Cells/chemistry ; Eukaryotic Cells/metabolism ; Eukaryotic Cells/ultrastructure ; Hemoglobins/chemistry ; Hemoglobins/metabolism ; Humans ; Lipids/chemistry ; Mass Spectrometry/methods ; Oxidation-Reduction ; Oxidative Stress ; Protein Interaction Mapping/methods ; Protein Processing, Post-Translational ; Serum Albumin, Human/chemistry ; Serum Albumin, Human/metabolism ; Signal Transduction
    Chemical Substances Aldehydes ; DNA Adducts ; Hemoglobins ; Lipids ; Serum Albumin, Human (ZIF514RVZR)
    Language English
    Publishing date 2019-03-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 807032-5
    ISSN 1873-4596 ; 0891-5849
    ISSN (online) 1873-4596
    ISSN 0891-5849
    DOI 10.1016/j.freeradbiomed.2019.02.034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: [Peritoneal Mesothelioma Diagnosed with a Sister Mary Joseph's Nodule].

    Kimura, Sho / Teranishi, Futoshi / Katada, Takeyasu / Koide, Shuji / Shibata, Takahiro / Nakai, Nozomu / Matsuo, Yoichi

    Gan to kagaku ryoho. Cancer & chemotherapy

    2023  Volume 50, Issue 13, Page(s) 1659–1661

    Abstract: In August 2022, a 59-year-old female noted a mass in her umbilicus and sought evaluation at Toyokawa City Hospital. Abdominal computed tomography(CT)scan revealed a 1.6 cm mass in the umbilical region, ascites in the pelvis, and increased absorption in ... ...

    Abstract In August 2022, a 59-year-old female noted a mass in her umbilicus and sought evaluation at Toyokawa City Hospital. Abdominal computed tomography(CT)scan revealed a 1.6 cm mass in the umbilical region, ascites in the pelvis, and increased absorption in the omentum. Peritoneal dissemination of the carcinoma and Sister Mary Joseph's nodule due to an unknown primary tumor were suspected because no abnormalities were detected during upper and lower gastrointestinal endoscopy. She underwent an umbilical lumpectomy and diagnostic laparoscopy to establish a definitive diagnosis. The surgical findings included numerous white nodules throughout the abdominal cavity. The umbilical mass and omental white nodules were resected. A final diagnosis of epithelial peritoneal mesothelioma was made based on the histopathologic examination. In general, peritoneal mesothelioma has a poor prognosis, and early treatment is essential; however, making a timely definitive diagnosis is difficult. Peritoneal mesothelioma should be included in the differential diagnosis for a patient with unexplained ascites and abdominal pain. Diagnostic laparoscopy and biopsy will facilitate the establishment of a definitive diagnosis.
    MeSH term(s) Humans ; Female ; Middle Aged ; Sister Mary Joseph's Nodule/diagnosis ; Sister Mary Joseph's Nodule/surgery ; Ascites ; Umbilicus/surgery ; Umbilicus/pathology ; Skin Neoplasms/pathology ; Mesothelioma/diagnosis ; Mesothelioma/surgery
    Language Japanese
    Publishing date 2023-10-28
    Publishing country Japan
    Document type Case Reports ; English Abstract ; Journal Article
    ZDB-ID 604842-0
    ISSN 0385-0684
    ISSN 0385-0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: 15-Deoxy-Δ¹²,¹⁴-prostaglandin J₂ as an electrophilic mediator

    Shibata, Takahiro

    Bioscience, biotechnology, and biochemistry. 2015 July 3, v. 79, no. 7

    2015  

    Abstract: Lipid-derived electrophilic molecules are endogenously generated and are causally involved in many pathophysiological effects. Prostaglandin D₂, a major cyclooxygenase product in a variety of tissues and cells, readily undergoes dehydration to yield the ... ...

    Abstract Lipid-derived electrophilic molecules are endogenously generated and are causally involved in many pathophysiological effects. Prostaglandin D₂, a major cyclooxygenase product in a variety of tissues and cells, readily undergoes dehydration to yield the J-series PGs such as 15-deoxy-Δ¹²,¹⁴-PGJ₂ (15d-PGJ₂). Because of the electrophilic α,β-unsaturated ketone moiety present in its cyclopentenone ring, 15d-PGJ₂ acts as an endogenous electrophile. 15d-PGJ₂ can covalently react via the Michael addition reaction with critical cellular nucleophiles, such as the free cysteine residues of proteins that play a key role in the regulation of the intracellular signaling pathways. Covalent modification of cellular proteins by 15d-PGJ₂ may be one of the most important mechanisms by which 15d-PGJ₂ induces many biological responses involved in the pathophysiological effects associated with inflammation. This current review is intended to provide a comprehensive summary of 15d-PGJ₂ as an endogenous electrophilic mediator of biological activities.
    Keywords Lewis acids ; Lewis bases ; biotechnology ; chemical bonding ; chemical reactions ; cysteine ; inflammation ; moieties ; prostaglandin synthase ; prostaglandins
    Language English
    Dates of publication 2015-0703
    Size p. 1044-1049.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-light
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1080/09168451.2015.1012149
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Quantitative analysis of oxidized vitamin B1 metabolites generated by hypochlorous acid.

    Sasatsuki, Hitoshi / Nakazaki, Atsuo / Uchida, Koji / Shibata, Takahiro

    Free radical biology & medicine

    2020  Volume 152, Page(s) 197–206

    Abstract: Thiamine, a water-soluble essential vitamin known as vitamin B1, acts as an important cofactor in various cellular processes, such as metabolism and energy production. Thiamine is also thought to have antioxidant effects as a singlet oxygen scavenger and ...

    Abstract Thiamine, a water-soluble essential vitamin known as vitamin B1, acts as an important cofactor in various cellular processes, such as metabolism and energy production. Thiamine is also thought to have antioxidant effects as a singlet oxygen scavenger and a lipid peroxidation inhibitor. However, the oxidation mechanism and oxidized metabolites of thiamine are not completely established. In the present study, we investigated the oxidative reactivity of thiamine and found that three products were formed upon the reaction of thiamine with hypochlorous acid (HOCl). Based on the NMR and high resolution mass spectrometric analysis, the HOCl-oxidized metabolites of thiamine were identified as formylaminopyrimidine (FAP), thiamine sulfonic acid (TSA), and thiamine sulfinic ester (TSE). To evaluate the formation of these oxidized metabolites in vivo, we established a specific method for quantification of the oxidized thiamine metabolites using liquid chromatography-tandem mass spectrometry coupled with a stable isotope dilution method. Using this method, it was shown that the oxidized thiamine metabolites were generated in the culture media of phorbol-12-myristate-acetate-treated neutrophil-like cells in a myeloperoxidase-dependent manner. Moreover, significantly higher amounts of FAP and TSE were detected in the lung tissues of the lipopolysaccharide-treated mice compared to the controls. These findings provide not only insights into the oxidative metabolism of thiamine, but also the possibility that the oxidized thiamine metabolites may be potential biomarkers for HOCl-related oxidative stress.
    MeSH term(s) Animals ; Chromatography, Liquid ; Hypochlorous Acid ; Mice ; Oxidation-Reduction ; Peroxidase/metabolism ; Thiamine
    Chemical Substances Hypochlorous Acid (712K4CDC10) ; Peroxidase (EC 1.11.1.7) ; Thiamine (X66NSO3N35)
    Language English
    Publishing date 2020-03-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 807032-5
    ISSN 1873-4596 ; 0891-5849
    ISSN (online) 1873-4596
    ISSN 0891-5849
    DOI 10.1016/j.freeradbiomed.2020.03.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: 6-Paradol Acts as a Potential Anti-obesity Vanilloid from Grains of Paradise.

    Hattori, Hiroyuki / Mori, Takashi / Shibata, Takahiro / Kita, Masaki / Mitsunaga, Tohru

    Molecular nutrition & food research

    2021  Volume 65, Issue 16, Page(s) e2100185

    Abstract: Scope: Grains of Paradise (GOP), the seeds of Aframomum melegueta, has anti-obesity effects. However, the mechanisms underlying the effects remain unclear.: Methods and results: This study sets up to study the anti-obesity impact and homeostatic ... ...

    Abstract Scope: Grains of Paradise (GOP), the seeds of Aframomum melegueta, has anti-obesity effects. However, the mechanisms underlying the effects remain unclear.
    Methods and results: This study sets up to study the anti-obesity impact and homeostatic effects of 6-paradol, a major vanilloid found in GOP, and investigates the physiological outputs and the lipometabolism-related gene in fat and liver in high-fat-induced obese mice with a comparison with structurally similar vanilloids (6-gingerol and 6-shogaol). The vanilloids are synthesized in adequate quantities for performing animal experiments and orally administered to 6-week-old male mice over 2 weeks. This study found that 6-paradol decreased body weight gain and visceral and subcutaneous fats in 2 weeks, whereas 6-gingerol and 6-shogaol have no effect. Additionally, 6-paradol suppresses the hepatic cholesterol and triglyceride and significantly decreases the gene expression related to fatty acid synthesis, lipid transportation, and adipocyte differentiation in both liver and adipose tissue. Moreover, phosphorylation of AMP-activated protein kinase (AMPK) that greatly contributes to lipometabolism is promoted by 6-gingerol but not 6-paradol.
    Conclusion: These results suggest that 6-paradol regulates several obesity-related genes in an AMPK-independent manner. Therefore, it could be the principal active vanilloid in GOP giving it anti-obesity properties with a different mechanism.
    MeSH term(s) AMP-Activated Protein Kinases/metabolism ; Adipose Tissue ; Animals ; Anti-Obesity Agents/pharmacology ; Guaiacol/analogs & derivatives ; Guaiacol/pharmacology ; Ketones/pharmacology ; Liver/drug effects ; Liver/metabolism ; Male ; Mice ; Molecular Structure ; Obesity/drug therapy ; Obesity/genetics ; Plant Extracts/pharmacology ; Seeds/chemistry ; Weight Gain ; Zingiberaceae/chemistry
    Chemical Substances Anti-Obesity Agents ; Ketones ; Plant Extracts ; Guaiacol (6JKA7MAH9C) ; 6-paradol (BO24ID7E9U) ; AMP-Activated Protein Kinases (EC 2.7.11.31)
    Language English
    Publishing date 2021-06-30
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2160372-8
    ISSN 1613-4133 ; 1613-4125
    ISSN (online) 1613-4133
    ISSN 1613-4125
    DOI 10.1002/mnfr.202100185
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Molecular networking-based lipid profiling and multi-omics approaches reveal new contributions of functional vanilloids to gut microbiota and lipometabolism changes.

    Hattori, Hiroyuki / Moriyama, Akihiro / Ohno, Tomoki / Shibata, Takahiro / Iwahashi, Hitoshi / Mitsunaga, Tohru

    Food chemistry. Molecular sciences

    2022  Volume 5, Page(s) 100123

    Abstract: Obesity is now recognized as an epidemic, requiring rapid intervention. We previously demonstrated that vanilloids from the African spice known as Grains of Paradise (GOP) exhibit strong anti-obesity effects. Here, the molecular mechanism behind the ... ...

    Abstract Obesity is now recognized as an epidemic, requiring rapid intervention. We previously demonstrated that vanilloids from the African spice known as Grains of Paradise (GOP) exhibit strong anti-obesity effects. Here, the molecular mechanism behind the obesity prevention property of the GOP extract was investigated by employing molecular networking-based lipid profiling and 16S rRNA sequencing. Administration of either GOP extract or two of its components, 6-paradol and 6-gingerol, reversed the unbalanced gut microbiota composition induced by a high-fat diet (HFD) with a decrease in Firmicutes / Bacteroidetes ratio and increase in genera
    Language English
    Publishing date 2022-07-18
    Publishing country England
    Document type Journal Article
    ISSN 2666-5662
    ISSN (online) 2666-5662
    DOI 10.1016/j.fochms.2022.100123
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: [A Case of Rectal Cancer with Lymph Node Metastasis Diagnosed as Intramucosal Cancer].

    Katada, Takeyasu / Teranishi, Futoshi / Shibata, Takahiro / Aoyama, Yoshinaga / Harata, Shinnosuke / Shinoda, Noriyuki

    Gan to kagaku ryoho. Cancer & chemotherapy

    2022  Volume 48, Issue 13, Page(s) 1691–1693

    Abstract: The patient was a 62-year-old man in whom 0-Ⅱa plus Ⅱc lesions in Rs were identified during follow-up observation of multiple colorectal polyps that were found during colonoscopy performed for the examination of fecal occult blood. CT showed no ... ...

    Abstract The patient was a 62-year-old man in whom 0-Ⅱa plus Ⅱc lesions in Rs were identified during follow-up observation of multiple colorectal polyps that were found during colonoscopy performed for the examination of fecal occult blood. CT showed no lymphadenopathy or distant metastasis to other organs. Laparoscopic-assisted high anterior resection of the rectum was performed with a diagnosis of clinical stage Ⅰ. Pathologically, there was a well-to-moderately differentiated tubular adenocarcinoma that remained in the lamina propria; however, 1 metastasis was found in the lymph node adjacent to the rectum(#251). Therefore, adjuvant chemotherapy was performed for 6 months after the operation, and 5 years have passed with no recurrence. Here, we report a case with no apparent submucosal invasion but with lymph node metastasis. We confirm recurrence-free survival for 5 years after surgery.
    MeSH term(s) Adenocarcinoma/drug therapy ; Adenocarcinoma/surgery ; Humans ; Lymph Nodes ; Lymphatic Metastasis ; Male ; Middle Aged ; Rectal Neoplasms/drug therapy ; Rectal Neoplasms/surgery ; Rectum
    Language Japanese
    Publishing date 2022-01-19
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 604842-0
    ISSN 0385-0684
    ISSN 0385-0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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