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  1. Article ; Online: An Empirical Approach to Derive Water T

    Michelotti, Filippo C / Kupriyanova, Yuliya / Mori, Tim / Küstner, Thomas / Heilmann, Geronimo / Bombrich, Maria / Möser, Clara / Schön, Martin / Kuss, Oliver / Roden, Michael / Schrauwen-Hinderling, Vera B

    Journal of magnetic resonance imaging : JMRI

    2023  Volume 59, Issue 4, Page(s) 1193–1203

    Abstract: Background: Water T: Purpose: To examine the feasibility of an empirical approach for iron and ... lipid correction when measuring imaging-based T: Study type: Retrospective.: Population: Next ... Field strength/sequences: 3 T, balanced steady-state free precession MOdified Look-Locker Inversion ...

    Abstract Background: Water T
    Purpose: To examine the feasibility of an empirical approach for iron and lipid correction when measuring imaging-based T
    Study type: Retrospective.
    Population: Next to mixed lipid-iron phantoms, individuals with different hepatic lipid content were investigated, including people with type 1 diabetes (N = 15, %female = 15.6, age = 43.5 ± 14.0), or type 2 diabetes mellitus (N = 21, %female = 28.9, age = 59.8 ± 9.7) and healthy volunteers (N = 9, %female = 11.1, age = 58.0 ± 8.1).
    Field strength/sequences: 3 T, balanced steady-state free precession MOdified Look-Locker Inversion recovery (MOLLI), multi- and dual-echo gradient echo Dixon, gradient echo magnetic resonance elastography (MRE).
    Assessment: T
    Statistical tests: Bland-Altman plots and intraclass correlation coefficients (ICCs) were used for MOLLI vs.
    Results: MOLLI T
    Data conclusion: Imaging-based correction factors enable accurate estimation of water T
    Level of evidence: 1 TECHNICAL EFFICACY: Stage 1.
    MeSH term(s) Humans ; Female ; Adult ; Middle Aged ; Aged ; Magnetic Resonance Imaging/methods ; Water ; Diabetes Mellitus, Type 2 ; Retrospective Studies ; Liver/diagnostic imaging ; Iron ; Reproducibility of Results ; Lipids
    Chemical Substances Water (059QF0KO0R) ; Iron (E1UOL152H7) ; Lipids
    Language English
    Publishing date 2023-08-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1146614-5
    ISSN 1522-2586 ; 1053-1807
    ISSN (online) 1522-2586
    ISSN 1053-1807
    DOI 10.1002/jmri.28906
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: T-bet

    Mori, Hitomi / Kubo, Makoto / Kai, Masaya / Yamada, Mai / Kurata, Kanako / Kawaji, Hitomi / Kaneshiro, Kazuhisa / Osako, Tomofumi / Nishimura, Reiki / Arima, Nobuyuki / Okido, Masayuki / Kishimoto, Junji / Oda, Yoshinao / Nakamura, Masafumi

    Breast cancer research and treatment

    2019  Volume 176, Issue 3, Page(s) 569–577

    Abstract: Purpose: T-box transcription factor 21 (T-bet), which is the master regulator of effector T-cell ... activation, is derived by stimulation of T-cell receptors. In this study, we focused on T-bet and examined ... the function of activated T cells.: Methods: This study included 242 patients with primary triple-negative breast cancer ...

    Abstract Purpose: T-box transcription factor 21 (T-bet), which is the master regulator of effector T-cell activation, is derived by stimulation of T-cell receptors. In this study, we focused on T-bet and examined the function of activated T cells.
    Methods: This study included 242 patients with primary triple-negative breast cancer (TNBC) who underwent resection without neoadjuvant chemotherapy between January 2004 and December 2014. The immunohistochemistry scoring for CD8 and T-bet expression on tumor-infiltrating lymphocytes (TILs) was defined as ≥ 30 per 6.25 × 10
    Results: Of the 242 TNBC cases, CD8 was positively expressed in 127 (52.5%) tumors, and T-bet was positively expressed in 67 (27.7%) tumors. T-bet expression was significantly correlated with CD8 expression (p < 0.0001). Patients with T-bet
    Conclusions: OS was significantly improved for patients with high T-bet-expressing TILs in TNBC. Thus, T-bet may be a predictive indicator for survival and various immunotherapy strategies in TNBC.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; CD8-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/metabolism ; CD8-Positive T-Lymphocytes/pathology ; Female ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Lymphocytes, Tumor-Infiltrating/immunology ; Lymphocytes, Tumor-Infiltrating/metabolism ; Lymphocytes, Tumor-Infiltrating/pathology ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; Prognosis ; Proportional Hazards Models ; T-Box Domain Proteins/metabolism ; T-Lymphocyte Subsets/immunology ; T-Lymphocyte Subsets/metabolism ; T-Lymphocyte Subsets/pathology ; Triple Negative Breast Neoplasms/metabolism ; Triple Negative Breast Neoplasms/mortality ; Triple Negative Breast Neoplasms/pathology ; Triple Negative Breast Neoplasms/therapy ; Tumor Burden
    Chemical Substances Biomarkers, Tumor ; T-Box Domain Proteins ; T-box transcription factor TBX21
    Language English
    Publishing date 2019-05-08
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 604563-7
    ISSN 1573-7217 ; 0167-6806
    ISSN (online) 1573-7217
    ISSN 0167-6806
    DOI 10.1007/s10549-019-05256-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Decrease in activated regulatory T cell populations in the endometrium during ovulation in endometriosis.

    Fujii, Maya / Tanaka, Yukiko / Okimura, Hiroyuki / Maeda, Eiko / Hamaguchi, Masahide / Fukui, Michiaki / Kitawaki, Jo / Mori, Taisuke

    Journal of reproductive immunology

    2023  Volume 156, Page(s) 103825

    Abstract: ... regulatory T cells (Tregs), is involved in endometriosis and infertility; however, endometriosis-associated ...

    Abstract Endometriosis is a serious disorder that can lead to infertility. The immune system, particularly regulatory T cells (Tregs), is involved in endometriosis and infertility; however, endometriosis-associated infertility is poorly understood. Tregs, which have an immunosuppressive function, fluctuate during the menstrual cycle. They are functionally heterogeneous and can be divided into subsets, with only activated Tregs (aTregs) having a true immunosuppressive function. The purpose of this study is to investigate the role of aTregs in endometriosis and how they contribute to endometriosis-associated infertility. We enrolled 72 women with (n = 39) and without (n = 33) endometriosis. Subpopulations of Tregs were examined in normal endometrium (NE), eutopic endometrium from women with endometriosis (EE), normal peritoneal fluid (N-PF), and peritoneal fluid from women with endometriosis (E-PF) via flow cytometry. The proportion of aTregs during the ovulatory phase was higher in NE than in EE (P < 0.05), and that during ovulatory and secretory phases was significantly higher in NE than in N-PF (P < 0.01 and 0.05, respectively). aTreg populations did not significantly differ between EE and E-PF. During the ovulatory phase, the proportion of resting Treg (rTreg) in the N-PF was significantly higher than during the proliferative phase (P < 0.05). The E-PF of rTreg populations did not differ significantly throughout the menstrual cycle. We found that Treg subsets were altered in the endometrium and PF of patients with endometriosis during the menstrual cycle. Our findings, particularly the reduction of aTregs in the EE, may provide an insight into the mechanism of endometriosis-associated infertility.
    MeSH term(s) Humans ; Female ; Endometriosis ; T-Lymphocytes, Regulatory ; Endometrium ; Menstrual Cycle ; Ovulation ; Infertility
    Language English
    Publishing date 2023-02-01
    Publishing country Ireland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 424421-7
    ISSN 1872-7603 ; 0165-0378
    ISSN (online) 1872-7603
    ISSN 0165-0378
    DOI 10.1016/j.jri.2023.103825
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  4. Article ; Online: Inhibitory effect of a neddylation blockade on HTLV-1-infected T cells

    Ishikawa, Chie / Mori, Naoki

    Leukemia & lymphoma

    2024  , Page(s) 1–11

    Abstract: Adult T-cell leukemia (ATL), caused by HTLV-1, is the most lethal hematological malignancy. NEDD8 ... CRL) activity. HTLV-1-infected T cells expressed higher levels of NAE catalytic subunit UBA3 ... T cells. The NAE1 inhibitor MLN4924 suppressed neddylation of cullin and inhibited the CRL-mediated ...

    Abstract Adult T-cell leukemia (ATL), caused by HTLV-1, is the most lethal hematological malignancy. NEDD8-activating enzyme (NAE) is a component of the NEDD8 conjunction pathway that regulates cullin-RING ubiquitin ligase (CRL) activity. HTLV-1-infected T cells expressed higher levels of NAE catalytic subunit UBA3 than normal peripheral blood mononuclear cells. NAE1 knockdown inhibited proliferation of HTLV-1-infected T cells. The NAE1 inhibitor MLN4924 suppressed neddylation of cullin and inhibited the CRL-mediated turnover of tumor suppressor proteins. MLN4924 inhibited proliferation of HTLV-1-infected T cells by inducing DNA damage, leading to S phase arrest and caspase-dependent apoptosis. S phase arrest was associated with CDK2 and cyclin A downregulation. MLN4924-induced apoptosis was mediated by the upregulation of pro-apoptotic and downregulation of anti-apoptotic proteins. Furthermore, MLN4924 inhibited NF-κB, AP-1, and Akt signaling pathways and activated JNK. Therefore, neddylation inhibition is an attractive strategy for ATL therapy. Our findings support the use of MLN4924 in ATL clinical trials.
    Language English
    Publishing date 2024-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1042374-6
    ISSN 1029-2403 ; 1042-8194
    ISSN (online) 1029-2403
    ISSN 1042-8194
    DOI 10.1080/10428194.2024.2328219
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  5. Article ; Online: Pivotal role of dihydroorotate dehydrogenase as a therapeutic target in adult T-cell leukemia.

    Ishikawa, Chie / Mori, Naoki

    European journal of haematology

    2024  

    Abstract: ... of adult T-cell leukemia (ATL) caused by human T-cell leukemia virus type 1 (HTLV-1) and the effects ... PCR and immunoblotting were conducted.: Results: HTLV-1-infected T-cell lines aberrantly expressed ... decreased HTLV-1-infected T-cell growth. In addition, BAY2402234, a DHODH inhibitor, exerted an anti ...

    Abstract Objectives: We aimed to determine the role of dihydroorotate dehydrogenase (DHODH) in pathogenesis of adult T-cell leukemia (ATL) caused by human T-cell leukemia virus type 1 (HTLV-1) and the effects of its inhibition on the de novo pyrimidine biosynthesis pathway.
    Methods: Cell proliferation, viability, cycle, and apoptosis were analyzed using WST-8 assays, flow cytometry, and Hoechst 33342 staining. To elucidate the molecular mechanisms involved in the anti-ATL effects of DHODH knockdown and inhibition, RT-PCR and immunoblotting were conducted.
    Results: HTLV-1-infected T-cell lines aberrantly expressed DHODH. Viral infection and the oncoprotein, Tax, enhanced DHODH expression, while knockdown of DHODH decreased HTLV-1-infected T-cell growth. In addition, BAY2402234, a DHODH inhibitor, exerted an anti-proliferative effect, which was reversed by uridine supplementation. BAY2402234 induced DNA damage and S phase arrest by downregulating c-Myc, CDK2, and cyclin A and upregulating p53 and cyclin E. It also induced caspase-mediated apoptosis by the upregulation of pro-apoptotic and downregulation of anti-apoptotic proteins. Furthermore, BAY2402234 induced caspase-independent ferroptosis and necroptosis. It decreased phosphorylation of IKK, IκBα, PTEN, Akt, and its downstream targets, suggesting that inhibition of NF-κB and Akt signaling is involved in its anti-ATL action.
    Conclusion: These findings highlight DHODH as a potential therapeutic target for treating ATL.
    Language English
    Publishing date 2024-04-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 392482-8
    ISSN 1600-0609 ; 0902-4441
    ISSN (online) 1600-0609
    ISSN 0902-4441
    DOI 10.1111/ejh.14209
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  6. 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
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  7. Article ; Online: Insect bite-like reaction in a patient with T-cell lymphoma.

    Mori, Tatsuhiko / Irie, Kinuko / Yamamoto, Toshiyuki

    Anais brasileiros de dermatologia

    2022  Volume 97, Issue 6, Page(s) 829–832

    MeSH term(s) Diagnosis, Differential ; Humans ; Insect Bites and Stings/complications ; Lymphoma, T-Cell
    Language English
    Publishing date 2022-09-08
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 433655-0
    ISSN 1806-4841 ; 0365-0596
    ISSN (online) 1806-4841
    ISSN 0365-0596
    DOI 10.1016/j.abd.2020.12.021
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  8. Article: Characteristics of Extranodal NK/T-Cell Lymphoma, Nasal Type, Compared with Nasal Diffuse Large B-cell Lymphoma.

    Tanaka, Hirotaka / Mori, Eri / Akutsu, Taisuke / Saito, Shota / Tei, Masayoshi / Otori, Nobuyoshi

    Clinical Medicine Insights. Oncology

    2023  Volume 17, Page(s) 11795549231156692

    Abstract: Background: Extranodal NK/T-cell lymphoma, nasal type (ENKL), is an aggressive tumour with poor ... with nasal cavity and/or paranasal sinus lymphoma were included. Extranodal NK/T-cell lymphoma, nasal type, was ...

    Abstract Background: Extranodal NK/T-cell lymphoma, nasal type (ENKL), is an aggressive tumour with poor prognosis. Its early diagnosis may improve the prognosis of patients; however, it is often overlooked in many cases and misdiagnosed as an inflammatory sinus disease during its initial stage. Identifying the clinical characteristics of ENKL may aid otorhinolaryngologists in indicating cases early for a pathologic examination. In this study, we aimed to investigate the clinical characteristics of ENKL compared with that of diffuse large B-cell lymphoma (DLBCL), which is the most common nasal malignant lymphoma.
    Methods: The backgrounds, clinical symptoms, blood test results, and computed tomography images of patients with nasal/paranasal malignant lymphoma in our hospital between 2012 and 2017 were investigated. The characteristics of ENKL and nasal DLBCL were compared to differentiate them.
    Results: A total of 27 patients with nasal cavity and/or paranasal sinus lymphoma were included. Extranodal NK/T-cell lymphoma, nasal type, was diagnosed in 10 patients, while DLBCL was diagnosed in 17 patients. The median age of patients with ENKL was significantly lower than that of patients with DLBCL. All patients with ENKL had a unilateral lesion in the nasal cavity, with most located at the inferior turbinate. They also experienced nasal symptoms with significantly higher incidence of nasal obstruction and tendency of bleeding.
    Conclusion: ENKL was often unilateral and caused nasal obstruction, unlike DLBCL. Those who are younger in age and have sinonasal tumour with unilateral nasal obstruction and bleeding should be considered for early and repeated biopsies at multiple sites, with ENKL taken into consideration.
    Language English
    Publishing date 2023-03-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2577877-8
    ISSN 1179-5549
    ISSN 1179-5549
    DOI 10.1177/11795549231156692
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  9. Article ; Online: Outcomes in human T-cell leukemia virus type I carriers after hematopoietic stem cell transplantation for diseases other than adult T cell leukemia/lymphoma: a Japanese national survey.

    Nakano, Nobuaki / Nakasone, Hideki / Fuji, Shigeo / Shinohara, Akihito / Suzuki, Ritsuro / Utsunomiya, Atae / Eto, Tetsuya / Morishima, Satoko / Ikegame, Kazuhiro / Kakinoki, Yasutaka / Matsuoka, Ken-Ichi / Mori, Yasuo / Suehiro, Youko / Uchida, Naoyuki / Ito, Ayumu / Doki, Noriko / Ozawa, Yukiyasu / Kanda, Junya / Kanda, Yoshinobu /
    Fukuda, Takahiro / Atsuta, Yoshiko / Ogata, Masao

    The Lancet regional health. Western Pacific

    2023  Volume 40, Page(s) 100902

    Abstract: Background: Human T-cell leukemia virus type I (HTLV-1) is a retrovirus known to cause adult T ...

    Abstract Background: Human T-cell leukemia virus type I (HTLV-1) is a retrovirus known to cause adult T-cell leukemia/lymphoma (ATL). There are few reports on hematopoietic stem cell transplantation (HSCT) for HTLV-1 carriers with diseases other than ATL.
    Methods: A total of 25,839 patients (24,399 adults and 1440 children) with pre-transplant HTLV-1 serostatus information recorded in the Japanese National Survey Database who had undergone their first HSCT were analyzed. We investigated the overall survival (OS), transplant-related mortality (TRM), and disease-related mortality (DRM) after HSCT in relation to HTLV-1 serologic status.
    Findings: Three hundred and forty-eight patients were HTLV-1 antibody carriers. The number of HTLV-1 carriers and noncarriers among adult patients who received allogeneic HSCT (allo-HSCT) or autologous HSCT (auto-HSCT) was 237/15,777 and 95/8920, respectively, and was 16/1424 among pediatric patients who received allo-HSCT. No pediatric HTLV-1 carrier recipients undergoing auto-HSCT were identified. There were no significant differences between HTLV-1 carriers and non-carriers regarding stem cell source, disease risk, or HCT-CI score prior to allo-HSCT. Multivariate analysis of OS (P = 0.020) and TRM (P = 0.017) in adult patients showed that HTLV-1 positive status was a significant prognostic factor. In children, TRM was significantly higher (P = 0.019), but OS was not significantly different. In adult patients who underwent auto-HSCT, HTLV-1 positive status was not a significant prognostic factor. In adult allo-HSCT patients, cytomegalovirus reactivation was significantly more common in HTLV-1 carriers (P = 0.001).
    Interpretation: HTLV-1 antibody positivity was shown to have a poor prognosis in OS and TRM after allo-HSCT in adult patients and in TRM after allo-HSCT in pediatric patients.
    Funding: This work was supported in part by the practical research programs of the Japan Agency for Medical Research and Development (AMED) under grant number 17ck0106342h0001.
    Language English
    Publishing date 2023-09-25
    Publishing country England
    Document type Journal Article
    ISSN 2666-6065
    ISSN (online) 2666-6065
    DOI 10.1016/j.lanwpc.2023.100902
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  10. Article ; Online: Prognostic relevance of tumor-resident memory T cells in metastatic lymph nodes of esophageal squamous cell carcinoma.

    Natsuki, Seiji / Tanaka, Hiroaki / Nishiyama, Masaki / Mori, Takuya / Deguchi, Sota / Miki, Yuichiro / Yoshii, Mami / Tamura, Tatsuro / Toyokawa, Takahiro / Lee, Shigeru / Maeda, Kiyoshi

    Cancer science

    2023  Volume 114, Issue 5, Page(s) 1846–1858

    Abstract: Tumor-resident memory T (T ...

    Abstract Tumor-resident memory T (T
    MeSH term(s) Humans ; Esophageal Squamous Cell Carcinoma/surgery ; Esophageal Squamous Cell Carcinoma/pathology ; Prognosis ; Esophageal Neoplasms/pathology ; Memory T Cells ; Lymph Nodes/pathology ; Esophagectomy ; Lymph Node Excision ; Retrospective Studies ; Neoplasm Staging
    Language English
    Publishing date 2023-02-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 2115647-5
    ISSN 1349-7006 ; 1349-7006
    ISSN (online) 1349-7006
    ISSN 1349-7006
    DOI 10.1111/cas.15750
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