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  1. Article ; Online: Analysis of T-cell alloantigen response

    Iwahara, Naoya / Hotta, Kiyohiko / Iwami, Daiki / Tanabe, Tatsu / Tanaka, Yuka / Ito, Yoichi M / Otsuka, Takuya / Murai, Sachiyo / Takada, Yusuke / Higuchi, Haruka / Sasaki, Hajime / Hirose, Takayuki / Harada, Hiroshi / Shinohara, Nobuo

    Frontiers in immunology

    2023  Volume 14, Page(s) 1164794

    Abstract: ... on T-cell alloantigen response ...

    Abstract Donor-specific antibodies (DSAs) are the main cause of graft loss over time. The direct pathway of alloantigen recognition is important in the pathogenesis of acute rejection. Recent studies have suggested that the direct pathway also contributes to the pathogenesis of chronic injury. Nevertheless, there are no reports on T-cell alloantigen response
    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; Isoantigens ; Antibodies
    Chemical Substances Isoantigens ; Antibodies
    Language English
    Publishing date 2023-05-03
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1164794
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Rapid three-dimensional quantification of high-intensity plaques from coronary atherosclerosis T

    Nakazawa, Motoki / Matsumoto, Hidenari / Li, Debiao / Slomka, Piotr J / Dey, Damini / Cadet, Sebastien / Isodono, Koji / Irie, Daisuke / Higuchi, Satoshi / Tanisawa, Hiroki / Ohya, Hidefumi / Kitamura, Ryoji / Komori, Yoshiaki / Hondera, Tetsuichi / Sato, Ikumi / Lee, Hsu-Lei / Christodoulou, Anthony G / Xie, Yibin / Shinke, Toshiro

    Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance

    2024  Volume 26, Issue 1, Page(s) 100999

    Abstract: ... Coronary atherosclerosis T: Methods: In this prospective study, CATCH MRI was conducted before elective stent ...

    Abstract Background: High-intensity plaque (HIP) on magnetic resonance imaging (MRI) has been documented as a powerful predictor of periprocedural myocardial injury (PMI) following percutaneous coronary intervention (PCI). Despite the recent proposal of three-dimensional HIP quantification to enhance the predictive capability, the conventional pulse sequence, which necessitates the separate acquisition of anatomical reference images, hinders accurate three-dimensional segmentation along the coronary vasculature. Coronary atherosclerosis T
    Methods: In this prospective study, CATCH MRI was conducted before elective stent implantation in 137 lesions from 125 patients. On CATCH images, dedicated software automatically generated tubular three-dimensional volumes of interest on the dark-blood plaque images along the coronary vasculature, based on the precisely matched bright-blood coronary artery images, and subsequently computed PMR and HIP volume (HIP
    Results: The entire analysis process was completed within 3 min per lesion. PMI occurred in 44 lesions. Based on the receiver operating characteristic curve analysis, HIP
    Conclusions: Our semi-automated method of analyzing coronary plaque using CATCH MRI provided rapid HIP quantification. Three-dimensional assessment using this approach had a better ability to predict PMI than conventional two-dimensional assessment.
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1458034-2
    ISSN 1532-429X ; 1097-6647
    ISSN (online) 1532-429X
    ISSN 1097-6647
    DOI 10.1016/j.jocmr.2024.100999
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Involvement of cutavirus in a subset of patients with cutaneous T-cell lymphoma with an unfavorable outcome.

    Hashida, Yumiko / Nakajima, Kimiko / Higuchi, Tomonori / Nakai, Kozo / Daibata, Masanori

    Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology

    2023  Volume 165, Page(s) 105523

    Abstract: Background: European studies suggest an association between cutavirus (CuV) and cutaneous T-cell ...

    Abstract Background: European studies suggest an association between cutavirus (CuV) and cutaneous T-cell lymphoma (CTCL); however, the worldwide prevalence of CuV in patients with CTCL and its prognostic impact remain unknown.
    Methods: We investigated the prevalence and viral loads of CuV DNA using biopsy specimens from the lesional skins of 141 Japanese patients with cutaneous malignancies, including 55 patients with various types of CTCL.
    Results: CuV DNA was detected significantly more frequently in biopsies from patients with mycosis fungoides (MF) (38% [13/34]; the most common subtype of CTCL) than in those from patients with other cutaneous malignancies (6% [6/107]; P<0.001). The viral-load range in patients with CuV DNA-positive MF was 23-3922 copies/10
    Conclusions: Our results suggest that CuV is associated with MF in a subset of Japanese patients. Large-scale prospective studies are warranted to clarify the role of CuV status, especially regarding the viral genotype, on adverse outcomes in patients with CuV-positive MF.
    MeSH term(s) Humans ; Phylogeny ; Lymphoma, T-Cell, Cutaneous/genetics ; Lymphoma, T-Cell, Cutaneous/pathology ; Mycosis Fungoides/genetics ; Mycosis Fungoides/metabolism ; Mycosis Fungoides/pathology ; Skin Neoplasms ; Prognosis
    Language English
    Publishing date 2023-06-15
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1446080-4
    ISSN 1873-5967 ; 1386-6532
    ISSN (online) 1873-5967
    ISSN 1386-6532
    DOI 10.1016/j.jcv.2023.105523
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: [A Case of T-Cell Lymphoma Treated by Emergency Surgery Due to Bleeding of Jejunal Lesion].

    Fujii, Yu / Sawazaki, Sho / Higuchi, Akio / Fukuda, Toshiyuki / Minowa, Kazuaki / Nakazono, Masato / Kato, Aya / Kawabe, Taiichi / Kojima, Yui / Aoyama, Toru / Tamakawa, Hiroshi / Yukawa, Norio / Rino, Yasushi / Saito, Aya / Saeki, Hiroyuki

    Gan to kagaku ryoho. Cancer & chemotherapy

    2024  Volume 50, Issue 13, Page(s) 1641–1643

    Abstract: ... of the small intestine including enlarged lymph nodes was performed. Based on the pathological findings of T-cell origin ... and positive for serum anti-HTLV-1 antibody, he was suspected as adult T-cell leukemia/lymphoma(ATLL ... scan were performed, but no other lesions were found. We report a case of the T-cell lymphoma ...

    Abstract A 78-year-old man was aware of lightheadedness and darkness at a routine outpatient visit, and his blood pressure was declined at 87/51 mmHg. Contrast-enhanced CT scan showed an extravascular leakage image at jejunum. We diagnosed as small intestinal hemorrhage. Because he was in hemorrhagic shock, emergency surgery was performed. A tumor was found coincident with the bleeding site, and partial resection of the small intestine including enlarged lymph nodes was performed. Based on the pathological findings of T-cell origin and positive for serum anti-HTLV-1 antibody, he was suspected as adult T-cell leukemia/lymphoma(ATLL). Endoscopic examination of the upper and lower gastrointestinal tracts, bone marrow examination, and PET-CT scan were performed, but no other lesions were found. We report a case of the T-cell lymphoma with suspected solitary ATLL of the jejunum.
    MeSH term(s) Aged ; Humans ; Male ; Gastrointestinal Hemorrhage ; Jejunum/surgery ; Leukemia-Lymphoma, Adult T-Cell/complications ; Leukemia-Lymphoma, Adult T-Cell/surgery ; Lymphoma, T-Cell ; Lymphoma, T-Cell, Peripheral ; Positron Emission Tomography Computed Tomography
    Language Japanese
    Publishing date 2024-02-02
    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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  5. Article ; Online: Extranodal NK/T-cell lymphoma with localized relapse in bone marrow of lower leg detected using PET-CT.

    Nakamura, Takahisa / Tatetsu, Hiro / Higuchi, Yusuke / Endo, Shinya / Shiraishi, Shinya / Kawanaka, Koichi / Imakane, Daisuke / Sonoda, Miyu / Furuta, Rie / Shichijo, Takafumi / Honda, Yumi / Karube, Kennosuke / Mikami, Yoshiki / Nosaka, Kisato / Matsuoka, Masao / Yasunaga, Jun-Ichirou

    Journal of clinical and experimental hematopathology : JCEH

    2024  Volume 64, Issue 1, Page(s) 45–51

    Abstract: Extranodal natural killer (NK)/T-cell lymphoma (ENKTL) is a rare subtype of non-Hodgkin lymphoma ...

    Abstract Extranodal natural killer (NK)/T-cell lymphoma (ENKTL) is a rare subtype of non-Hodgkin lymphoma (NHL) with poor prognosis, particularly in relapsed or refractory patients. Thus, timely detection of relapse and appropriate disease management are crucial. We present two patients with ENKTL, wherein positron emission tomography-computed tomography (PET-CT) with total-body coverage after induction therapy, detected newly relapsed regions in the bone marrow of the lower leg prior to progression. Case 1: A 47-year-old woman with nasal obstruction, showing 18F-fluoro-deoxyglucose (FDG) uptake in the nasal cavity (Lugano stage IE). After induction therapy (RT-2/3 DeVIC), PET-CT revealed abnormal uptake only in the right fibula. Case 2: A 68-year-old man with a skin nodule/ulcer and an enlarged right inguinal lymph node was diagnosed with advanced ENKTL. A PET-CT scan revealed abnormal uptake in the subcutaneous mass of the right medial thigh, lymph nodes, and descending colon (Lugano stage IV). After induction therapy, PET-CT revealed new abnormal uptake only in the left tibia. In both patients, CT-guided biopsy confirmed ENKTL recurrence. Moreover, PET-CT with whole-body coverage was useful for the timely assessment of relapse and detection of asymptomatic bone involvement. This approach allowed for modifications to treatment strategies in certain patients.
    MeSH term(s) Male ; Female ; Humans ; Middle Aged ; Aged ; Positron Emission Tomography Computed Tomography/methods ; Bone Marrow/pathology ; Positron-Emission Tomography/methods ; Leg/pathology ; Lymphoma, Extranodal NK-T-Cell/pathology ; Fluorodeoxyglucose F18 ; Radiopharmaceuticals ; Neoplasm Recurrence, Local
    Chemical Substances Fluorodeoxyglucose F18 (0Z5B2CJX4D) ; Radiopharmaceuticals
    Language English
    Publishing date 2024-03-27
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 2395568-5
    ISSN 1880-9952 ; 1880-9952
    ISSN (online) 1880-9952
    ISSN 1880-9952
    DOI 10.3960/jslrt.23046
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The impact of CCR8+ regulatory T cells on cytotoxic T cell function in human lung cancer.

    Haruna, Miya / Ueyama, Azumi / Yamamoto, Yoko / Hirata, Michinari / Goto, Kumiko / Yoshida, Hiroshi / Higuchi, Naoko / Yoshida, Tetsuya / Kidani, Yujiro / Nakamura, Yamami / Nagira, Morio / Kawashima, Atsunari / Iwahori, Kota / Shintani, Yasushi / Ohkura, Naganari / Wada, Hisashi

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 5377

    Abstract: Regulatory T cells (Tregs) suppress the host immune response and maintain immune homeostasis. Tregs ... their immune suppressive function, especially the influence on cytotoxic T lymphocyte cell function. The Cancer Genome ... Atlas analysis revealed that CD8 T cell activities were suppressed in high CCR8-expressing tumors ...

    Abstract Regulatory T cells (Tregs) suppress the host immune response and maintain immune homeostasis. Tregs also promote cancer progression and are involved in resistance to immune checkpoint inhibitor treatments. Recent studies identified selective CCR8 expression on tumor-infiltrating Tregs; CCR8+ Tregs have been indicated as a possible new target of cancer immunotherapy. Here, we investigated the features of CCR8+ Tregs in lung cancer patients. CCR8+ Tregs were highly activated and infiltration of CCR8+ Tregs in tumors was associated with poor prognosis in lung cancer patients. We also investigated their immune suppressive function, especially the influence on cytotoxic T lymphocyte cell function. The Cancer Genome Atlas analysis revealed that CD8 T cell activities were suppressed in high CCR8-expressing tumors. Additionally, depletion of CCR8+ cells enhanced CD8 T cell function in an ex vivo culture of lung tumor-infiltrating cells. Moreover, CCR8+ Tregs, but not CCR8- Tregs, induced from human PBMCs markedly suppressed CD8 T cell cytotoxicity. Finally, we demonstrated the therapeutic effect of targeting CCR8 in a murine model of lung cancer. These findings reveal the significance of CCR8+ Tregs for immunosuppression in lung cancer, especially via cytotoxic T lymphocyte cell suppression, and suggest the potential value of CCR8-targeted therapy for cancer treatment.
    MeSH term(s) Animals ; Humans ; Immune Tolerance ; Immunotherapy ; Lung Neoplasms/pathology ; Mice ; Receptors, CCR8/metabolism ; T-Lymphocytes, Cytotoxic ; T-Lymphocytes, Regulatory
    Chemical Substances CCR8 protein, human ; Ccr8 protein, mouse ; Receptors, CCR8
    Language English
    Publishing date 2022-03-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-09458-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Spatial and single-cell colocalisation analysis reveals MDK-mediated immunosuppressive environment with regulatory T cells in colorectal carcinogenesis.

    Hashimoto, Masahiro / Kojima, Yasuhiro / Sakamoto, Takeharu / Ozato, Yuki / Nakano, Yusuke / Abe, Tadashi / Hosoda, Kiyotaka / Saito, Hideyuki / Higuchi, Satoshi / Hisamatsu, Yuichi / Toshima, Takeo / Yonemura, Yusuke / Masuda, Takaaki / Hata, Tsuyoshi / Nagayama, Satoshi / Kagawa, Koichi / Goto, Yasuhiro / Utou, Mitsuaki / Gamachi, Ayako /
    Imamura, Kiyomi / Kuze, Yuta / Zenkoh, Junko / Suzuki, Ayako / Takahashi, Kazuki / Niida, Atsushi / Hirose, Haruka / Hayashi, Shuto / Koseki, Jun / Fukuchi, Satoshi / Murakami, Kazunari / Yoshizumi, Tomoharu / Kadomatsu, Kenji / Tobo, Taro / Oda, Yoshinao / Uemura, Mamoru / Eguchi, Hidetoshi / Doki, Yuichiro / Mori, Masaki / Oshima, Masanobu / Shibata, Tatsuhiro / Suzuki, Yutaka / Shimamura, Teppei / Mimori, Koshi

    EBioMedicine

    2024  , Page(s) 105102

    Abstract: ... cells colocalised with regulatory T cells (Tregs) at the adenoma-carcinoma interface. At early-stage ...

    Abstract Background: Cell-cell interaction factors that facilitate the progression of adenoma to sporadic colorectal cancer (CRC) remain unclear, thereby hindering patient survival.
    Methods: We performed spatial transcriptomics on five early CRC cases, which included adenoma and carcinoma, and one advanced CRC. To elucidate cell-cell interactions within the tumour microenvironment (TME), we investigated the colocalisation network at single-cell resolution using a deep generative model for colocalisation analysis, combined with a single-cell transcriptome, and assessed the clinical significance in CRC patients.
    Findings: CRC cells colocalised with regulatory T cells (Tregs) at the adenoma-carcinoma interface. At early-stage carcinogenesis, cell-cell interaction inference between colocalised adenoma and cancer epithelial cells and Tregs based on the spatial distribution of single cells highlighted midkine (MDK) as a prominent signalling molecule sent from tumour epithelial cells to Tregs. Interaction between MDK-high CRC cells and SPP1+ macrophages and stromal cells proved to be the mechanism underlying immunosuppression in the TME. Additionally, we identified syndecan4 (SDC4) as a receptor for MDK associated with Treg colocalisation. Finally, clinical analysis using CRC datasets indicated that increased MDK/SDC4 levels correlated with poor overall survival in CRC patients.
    Interpretation: MDK is involved in the immune tolerance shown by Tregs to tumour growth. MDK-mediated formation of the TME could be a potential target for early diagnosis and treatment of CRC.
    Funding: Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Science Research; OITA Cancer Research Foundation; AMED under Grant Number; Japan Science and Technology Agency (JST); Takeda Science Foundation; The Princess Takamatsu Cancer Research Fund.
    Language English
    Publishing date 2024-04-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2851331-9
    ISSN 2352-3964
    ISSN (online) 2352-3964
    DOI 10.1016/j.ebiom.2024.105102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: T cell clonal expansion and STAT3 mutations: a characteristic feature of acquired chronic T cell-mediated pure red cell aplasia.

    Kawakami, Fumihiro / Kawakami, Toru / Yamane, Taku / Maruyama, Masae / Kobayashi, Jun / Nishina, Sayaka / Sakai, Hitoshi / Higuchi, Yumiko / Hamanaka, Kazutoshi / Hirokawa, Makoto / Nakao, Shinji / Nakazawa, Hideyuki / Ishida, Fumihiro

    International journal of hematology

    2022  Volume 115, Issue 6, Page(s) 816–825

    Abstract: ... with other medical conditions, including T cell large granular lymphocytic leukemia (T-LGLL) and thymoma. T cell ... dysregulation is considered a cardinal pathogenesis of PRCA, but genetic-phenotypic associations in T cell ... 26 with idiopathic, 36 with T-LGLL-associated and 15 with thymoma-associated PRCA, for their T ...

    Abstract Acquired chronic pure red cell aplasia (PRCA) develops idiopathically or in association with other medical conditions, including T cell large granular lymphocytic leukemia (T-LGLL) and thymoma. T cell dysregulation is considered a cardinal pathogenesis of PRCA, but genetic-phenotypic associations in T cell abnormalities are largely unclear. We evaluated an extended cohort of 90 patients with acquired PRCA, including 26 with idiopathic, 36 with T-LGLL-associated and 15 with thymoma-associated PRCA, for their T cell immuno-phenotypes, clonalities and STAT3 mutations. TCR repertoire skewing of CD8
    MeSH term(s) CD8-Positive T-Lymphocytes/pathology ; Humans ; Leukemia, Large Granular Lymphocytic/genetics ; Leukemia, Large Granular Lymphocytic/immunology ; Leukemia, Large Granular Lymphocytic/pathology ; Mutation ; Receptors, Antigen, T-Cell/genetics ; Receptors, Antigen, T-Cell/immunology ; Red-Cell Aplasia, Pure/genetics ; Red-Cell Aplasia, Pure/immunology ; Red-Cell Aplasia, Pure/pathology ; STAT3 Transcription Factor/genetics ; STAT3 Transcription Factor/immunology ; Thymoma/genetics ; Thymoma/immunology ; Thymus Neoplasms/immunology
    Chemical Substances Receptors, Antigen, T-Cell ; STAT3 Transcription Factor ; STAT3 protein, human
    Language English
    Publishing date 2022-03-11
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1076875-0
    ISSN 1865-3774 ; 0917-1258 ; 0925-5710
    ISSN (online) 1865-3774
    ISSN 0917-1258 ; 0925-5710
    DOI 10.1007/s12185-022-03310-2
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  9. Article: RUNX1::RUNX1T1 Acute Myeloid Leukemia Cytogenetically Showing t(6;8)(p23;q22).

    Higuchi, Ai / Iriyama, Noriyoshi

    Cureus

    2024  Volume 16, Issue 3, Page(s) e56342

    Abstract: ... cytogenetically atypical translocation t(6;8). Fluorescence in situ hybridization (FISH) analysis, in combination ... with G-banding, clarified the three-way translocation t(6;21;8)(p25;q22;q22), which was partially cryptic ...

    Abstract Runt-related transcription factor 1 (RUNX1)::RUNX1 partner transcriptional co-repressor 1 (RUNX1T1) acute myeloid leukemia (AML) is a subtype of acute leukemia primarily classified as French American British M2. RUNX1::RUNX1T1 transcript is formed by a reciprocal translocation between chromosomes 8q22 and 21q22. However, we encountered a case of AML that showed molecular positivity for RUNX1::RUNX1T1 fusion transcript but exhibited cytogenetically atypical translocation t(6;8). Fluorescence in situ hybridization (FISH) analysis, in combination with G-banding, clarified the three-way translocation t(6;21;8)(p25;q22;q22), which was partially cryptic. The case emphasizes the importance of employing molecular analysis alongside cytogenetics to determine disease subtypes in patients with acute leukemia.
    Language English
    Publishing date 2024-03-17
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.56342
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  10. Article ; Online: Significant response of patients with transformed follicular lymphoma with rapid disease progression to CAR-T therapy.

    Hirano, Taichi / Tatetsu, Hiro / Ueno, Shikiko / Shichijo, Takafumi / Furukawa, Shota / Tsujihashi, Mizuho / Miyakawa, Toshikazu / Shiraishi, Shinya / Higuchi, Yusuke / Uchiba, Mitsuhiro / Yasunaga, Jun-Ichirou / Nosaka, Kisato / Matsuoka, Masao

    Journal of clinical and experimental hematopathology : JCEH

    2023  Volume 63, Issue 4, Page(s) 266–269

    MeSH term(s) Humans ; Lymphoma, Follicular/therapy ; Receptors, Chimeric Antigen ; Neoplasm Recurrence, Local ; Immunotherapy, Adoptive ; Lymphoma, Non-Hodgkin ; Disease Progression ; Lymphoma, Large B-Cell, Diffuse/pathology
    Chemical Substances Receptors, Chimeric Antigen
    Language English
    Publishing date 2023-11-30
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2395568-5
    ISSN 1880-9952 ; 1880-9952
    ISSN (online) 1880-9952
    ISSN 1880-9952
    DOI 10.3960/jslrt.23033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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