LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 4710

Search options

  1. Article: [RS3PE syndrome with angioimmunoblastic T-cell lymphoma early after the start of immunosuppressive therapy].

    Ishihara, Narumi / Aota, Yasuo / Nagata, Daichi / Saihara, Maki / Sutoh, Arisa / Okabe, Masahiro / Wakabayasi, Kuninobu / Yokoyama, Tomohisa / Gotoh, Akihiko

    Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics

    2023  Volume 60, Issue 1, Page(s) 60–66

    Abstract: ... lymphoproliferative disorders/angioimmunoblastic T-cell lymphoma (OI-LPD/AITL). After discontinuation of methotrexate and follow ...

    Abstract A 75-year-old man visited our Collagen Disease Department because of a fever, edema in the lower legs, and arthralgia. He presented with peripheral arthritis of the extremities and was negative for rheumatoid factor, leading to a diagnosis of RS3PE syndrome. A search for malignancy was performed, but no obvious malignant findings were found. After starting treatment with steroid, methotrexate, and tacrolimus, the patient's joint symptoms improved, but after five months, enlarged lymph nodes throughout the body were observed. A lymph node biopsy revealed a diagnosis of other iatrogenic immunodeficiency-associated lymphoproliferative disorders/angioimmunoblastic T-cell lymphoma (OI-LPD/AITL). After discontinuation of methotrexate and follow-up, no lymph node shrinkage was observed, and the patient had strong general malaise, so chemotherapy was started for AITL. After the start of chemotherapy, the patient's general symptoms improved quickly. RS3PE syndrome is a polyarticular, rheumatoid factor-negative, polyarticular synovitis with symmetric dorsolateral hand-palmar symmetric indentation edema that occurs mainly in elderly patients. It is also noted as a paraneoplastic syndrome, with 10%-40% of patients having malignant tumors. When our patient was diagnosed with RS3PE syndrome, a search for malignancy was performed, but there were no findings suggestive of malignant disease. However, after methotrexate and tacrolimus administration was started, the patient developed rapid lymph node enlargement, and the pathology showed AITL. The possibility of AITL as an underlying disease and RS3PE syndrome as a paraneoplastic syndrome, or conversely, OI-LPD/AITL associated with immunosuppressive therapy for RS3PE syndrome is considered. We herein report this case, as sufficient recognition is required for a proper diagnosis to be made and treatment of RS3PE syndrome to be performed.
    MeSH term(s) Male ; Humans ; Aged ; Methotrexate ; Rheumatoid Factor ; Tacrolimus/therapeutic use ; Immunoblastic Lymphadenopathy/complications ; Immunoblastic Lymphadenopathy/drug therapy ; Immunoblastic Lymphadenopathy/pathology ; Paraneoplastic Syndromes/complications ; Paraneoplastic Syndromes/diagnosis ; Edema/complications ; Edema/diagnosis ; Lymphoma, T-Cell/complications ; Lymphoma, T-Cell/drug therapy ; Immunosuppression Therapy
    Chemical Substances Methotrexate (YL5FZ2Y5U1) ; Rheumatoid Factor (9009-79-4) ; Tacrolimus (WM0HAQ4WNM)
    Language Japanese
    Publishing date 2023-02-27
    Publishing country Japan
    Document type Case Reports ; English Abstract ; Journal Article
    ZDB-ID 604107-3
    ISSN 0300-9173
    ISSN 0300-9173
    DOI 10.3143/geriatrics.60.60
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Sub-lethal doses of chemotherapeutic agents induce senescence in T cells and upregulation of PD-1 expression.

    Kasamatsu, Tetsuhiro / Awata-Shiraiwa, Maaya / Ishihara, Rei / Murakami, Yuki / Masuda, Yuta / Gotoh, Nanami / Oda, Tsukasa / Yokohama, Akihiko / Matsumura, Ikuko / Handa, Hiroshi / Tsukamoto, Norifumi / Murakami, Hirokazu / Saitoh, Takayuki

    Clinical and experimental medicine

    2023  Volume 23, Issue 6, Page(s) 2695–2703

    Abstract: ... of cellular senescence in T cells were derived from human peripheral blood mononuclear cells (PBMNCs) in healthy donors ... 3119), respectively) in T cells. IL6 and SPP1 mRNA, which are senescence-associated secretory phenotype ... significantly enhanced the expression of programmed death 1 (PD-1) on CD3 + CD4 + and CD3 + CD8 + T ...

    Abstract Cellular senescence is a stable cell cycle arrest, usually in response to internal and/or external stress, including telomere dysfunction, abnormal cellular growth, and DNA damage. Several chemotherapeutic drugs, such as melphalan (MEL) and doxorubicin (DXR), induce cellular senescence in cancer cells. However, it is not clear whether these drugs induce senescence in immune cells. We evaluated the induction of cellular senescence in T cells were derived from human peripheral blood mononuclear cells (PBMNCs) in healthy donors using sub-lethal doses of chemotherapeutic agents. The PBMNCs were kept overnight in RPMI 1640 medium with 2% phytohemagglutinin and 10% fetal bovine serum and then cultured in RPMI 1640 with 20 ng/mL IL-2 and sub-lethal doses of chemotherapeutic drugs (2 μM MEL and 50 nM DXR) for 48 h. Sub-lethal doses of chemotherapeutic agents induced phenotypes associated with senescence, such as the formation of γH2AX nuclear foci, cell proliferation arrest, and induction of senescence-associated beta-galactosidase (SA-β-Gal) activity, (control vs. MEL, DXR; median mean fluorescence intensity (MFI) 1883 (1130-2163) vs. 2233 (1385-2254), 2406.5 (1377-3119), respectively) in T cells. IL6 and SPP1 mRNA, which are senescence-associated secretory phenotype (SASP) factors, were significantly upregulated by sublethal doses of MEL and DXR compared to the control (P = 0.043 and 0.018, respectively). Moreover, sub-lethal doses of chemotherapeutic agents significantly enhanced the expression of programmed death 1 (PD-1) on CD3 + CD4 + and CD3 + CD8 + T cells compared to the control (CD4 + T cells; P = 0.043, 0.043, and 0.043, respectively, CD8 + T cells; P = 0.043, 0.043, and 0.043, respectively). Our results suggest that sub-lethal doses of chemotherapeutic agents induce senescence in T cells and tumor immunosuppression by upregulating PD-1 expression on T cells.
    MeSH term(s) Humans ; Programmed Cell Death 1 Receptor/genetics ; Up-Regulation ; Leukocytes, Mononuclear ; Cellular Senescence/genetics ; Doxorubicin/pharmacology ; CD4-Positive T-Lymphocytes
    Chemical Substances Programmed Cell Death 1 Receptor ; Doxorubicin (80168379AG)
    Language English
    Publishing date 2023-03-13
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2053018-3
    ISSN 1591-9528 ; 1591-8890
    ISSN (online) 1591-9528
    ISSN 1591-8890
    DOI 10.1007/s10238-023-01034-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Genomic determinants impacting the clinical outcome of mogamulizumab treatment for adult T-cell leukemia/lymphoma.

    Tanaka, Norio / Mori, Seiichi / Kiyotani, Kazuma / Ota, Yuki / Gotoh, Osamu / Kusumoto, Shigeru / Nakano, Nobuaki / Suehiro, Youko / Ito, Asahi / Choi, Ilseung / Ohtsuka, Eiichi / Hidaka, Michihiro / Nosaka, Kisato / Yoshimitsu, Makoto / Imaizumi, Yoshitaka / Iida, Shinsuke / Utsunomiya, Atae / Noda, Tetsuo / Nishikawa, Hiroyoshi /
    Ueda, Ryuzo / Ishida, Takashi

    Haematologica

    2022  Volume 107, Issue 10, Page(s) 2418–2431

    Abstract: ... an integrated molecular analysis of adult T-cell leukemia/lymphoma (ATL) was conducted on 64 mogamulizumab-naïve ...

    Abstract In order to identify genomic biomarkers for the outcome of mogamulizumab-containing treatment, an integrated molecular analysis of adult T-cell leukemia/lymphoma (ATL) was conducted on 64 mogamulizumab-naïve patients. Among driver genes, CCR4 and CCR7 alterations were observed in 22% and 11% of the patients, respectively, both consisting of single nucleotide variants (SNV)/insertion-deletions (indels) in the C-terminus. Patients with CCR4 alterations or without CCR7 alterations exhibited a more favorable clinical response (complete response [CR] rate 93%, 13/14; P=0.024, and CR rate 71%, 40/56; P=0.036, respectively). Additionally, TP53, CD28, and CD274 alterations were identified in 35%, 16%, and 10% of the patients, respectively. TP53 alterations included SNV/indels or copy number variations (CNV) such as homozygous deletion; CD28 alterations included SNV, CNV such as amplification, or fusion; CD274 alterations included CNV such as amplification, or structural variants. Univariate analysis revealed that TP53, CD28 or CD274 alterations were associated with worse overall survival (OS) (hazard ratio [HR]: 2.330, 95% confidence interval [CI]: 1.183-4.589; HR: 3.191, 95% CI: 1.287- 7.911; HR: 3.301, 95% CI: 1.130-9.641, respectively) but that CCR4 alterations were associated with better OS (HR: 0.286, 95% CI: 0.087-0.933). Multivariate analysis indicated that in addition to performance status, TP53, CCR4 or CD274 alterations (HR: 2.467, 95% CI: 1.197-5.085; HR: 0.155, 95% CI: 0.031-0.778; HR: 14.393, 95% CI: 2.437-85.005, respectively) were independently and significantly associated with OS. The present study contributes to the establishment of precision medicine using mogamulizumab in ATL patients.
    MeSH term(s) Adult ; Antibodies, Monoclonal, Humanized ; CD28 Antigens ; DNA Copy Number Variations ; Genomics ; Homozygote ; Humans ; Leukemia-Lymphoma, Adult T-Cell/drug therapy ; Leukemia-Lymphoma, Adult T-Cell/genetics ; Leukemia-Lymphoma, Adult T-Cell/pathology ; Lymphoma ; Nucleotides ; Receptors, CCR7 ; Sequence Deletion ; Treatment Outcome
    Chemical Substances Antibodies, Monoclonal, Humanized ; CD28 Antigens ; Nucleotides ; Receptors, CCR7 ; mogamulizumab (YI437801BE)
    Language English
    Publishing date 2022-10-01
    Publishing country Italy
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2333-4
    ISSN 1592-8721 ; 0017-6567 ; 0390-6078
    ISSN (online) 1592-8721
    ISSN 0017-6567 ; 0390-6078
    DOI 10.3324/haematol.2021.280352
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: IgA-producing lymphoplasmacytic lymphoma carrying the chromosomal abnormality t(8;14).

    Gotoh, Yuta / Aoyama, Yumi / Tsunemine, Hiroko / Idei, Yuka / Mori, Ayano / Kodaka, Taiichi / Iba, Sachiko / Tomita, Akihiro / Itoh, Tomoo / Takahashi, Takayuki

    Journal of clinical and experimental hematopathology : JCEH

    2019  Volume 59, Issue 3, Page(s) 124–129

    Abstract: ... This is the first report of a case of IgA-producing LPL carrying t(8;14). An 86-year-old woman presented ... chromosomal analysis demonstrated a complex abnormal karyotype, including t(8;14)(q24;q32), which was ...

    Abstract IgA-producing lymphoplasmacytic lymphoma (LPL) is rare and IgH/c-myc translocation is rare in LPL. This is the first report of a case of IgA-producing LPL carrying t(8;14). An 86-year-old woman presented inguinal and intra-abdominal lymph node swelling, and lytic bone lesions in the lumbar vertebrae. A diagnosis of IgA-producing LPL was immunohistochemically made by inguinal lymph node biopsy. The serum IgA level was 1,180 mg/dL, which was revealed to be composed of IgA-λ monoclonal protein. Bone marrow chromosomal analysis demonstrated a complex abnormal karyotype, including t(8;14)(q24;q32), which was confirmed by FISH analysis. Abnormal lymphocytes positive for CD19, CD20, cyIgA, and cyλ were detected on flow cytometry analysis of marrow cells. Best supportive care was selected because of dementia and refractory urinary tract infection. Circulating lymphoplasmacytic cells with the same phenotype and karyotype were observed, and increased in number. The aggressive clinical course, including lytic bone lesions, may have been due to IgH/c-myc translocation or the nature of IgA-producing LPL.
    MeSH term(s) Aged, 80 and over ; Chromosomes, Human, Pair 14/genetics ; Chromosomes, Human, Pair 8/genetics ; Female ; Humans ; Immunoglobulin A/blood ; Neoplasm Proteins/blood ; Neoplasm Proteins/genetics ; Translocation, Genetic ; Waldenstrom Macroglobulinemia/blood ; Waldenstrom Macroglobulinemia/diagnosis ; Waldenstrom Macroglobulinemia/genetics
    Chemical Substances Immunoglobulin A ; Neoplasm Proteins
    Language English
    Publishing date 2019-08-08
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 2395568-5
    ISSN 1880-9952 ; 1346-4280
    ISSN (online) 1880-9952
    ISSN 1346-4280
    DOI 10.3960/jslrt.19009
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Newly emerged immunogenic neoantigens in established tumors enable hosts to regain immunosurveillance in a T-cell-dependent manner.

    Muramatsu, Tomoaki / Noguchi, Takuro / Sugiyama, Daisuke / Kanada, Yoshie / Fujimaki, Kaori / Ito, Sachiko / Gotoh, Momokazu / Nishikawa, Hiroyoshi

    International immunology

    2020  Volume 33, Issue 1, Page(s) 39–48

    Abstract: Tumor neoantigens derived from genetic alterations are potential T-cell targets for antitumor ... impairment of T-cell responses during tumor development and progression. Here, we addressed whether newly ... upon induction of the neoantigen and this inhibition was abrogated in nude mice lacking T cells and in mice ...

    Abstract Tumor neoantigens derived from genetic alterations are potential T-cell targets for antitumor immunity. However, tumors develop immune escape mechanisms including loss of preexisting neoantigens and/or impairment of T-cell responses during tumor development and progression. Here, we addressed whether newly emerged immunogenic neoantigens in established tumors enabled hosts to inhibit tumor growth via controlling immune escape mechanisms. Using a doxycycline-driven gene expression system, we generated murine MC38, CT26 (colorectal cancer) and B16 (melanoma) cell lines with inducible expression of model immunogenic neoantigens such as chicken ovalbumin and human NY-ESO-1. A model neoantigen was induced by doxycycline administration in the tumors once tumors became palpable. Tumor growth was significantly inhibited upon induction of the neoantigen and this inhibition was abrogated in nude mice lacking T cells and in mice deprived of CD8+ T cells, indicating the critical role of CD8+ T cells in tumor regression. In addition, PD-1/PD-L1 blockade further augmented the antitumor immune response, resulting in a far stronger inhibition of tumor growth. Accordingly, newly emerged tumor neoantigen-specific CD8+ T cells with enhanced effector functions were significantly increased in mice treated with PD-1/PD-L1 blockade. We propose that a newly emerged neoantigen is sufficient to inhibit tumor growth via preventing immune escape in a T-cell-dependent manner. Our results imply that induction of immunogenic tumor neoantigens is a novel strategy to overcome the resistance to immune checkpoint blockade therapy.
    MeSH term(s) Animals ; Antigens, Neoplasm/immunology ; B7-H1 Antigen/antagonists & inhibitors ; CD8-Positive T-Lymphocytes/immunology ; Cell Line, Tumor ; Chickens ; Colonic Neoplasms/immunology ; Doxycycline/pharmacology ; Drug Resistance, Neoplasm/drug effects ; Female ; Humans ; Immune Checkpoint Inhibitors/pharmacology ; Melanoma, Experimental/immunology ; Membrane Proteins/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Nude ; Monitoring, Immunologic ; Ovalbumin/immunology ; Programmed Cell Death 1 Receptor/antagonists & inhibitors ; Tumor Escape/immunology
    Chemical Substances Antigens, Neoplasm ; B7-H1 Antigen ; CTAG1B protein, human ; Cd274 protein, mouse ; Immune Checkpoint Inhibitors ; Membrane Proteins ; Pdcd1 protein, mouse ; Programmed Cell Death 1 Receptor ; Ovalbumin (9006-59-1) ; Doxycycline (N12000U13O)
    Language English
    Publishing date 2020-06-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1013745-2
    ISSN 1460-2377 ; 0953-8178
    ISSN (online) 1460-2377
    ISSN 0953-8178
    DOI 10.1093/intimm/dxaa049
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: T-cell complexity and density are associated with sensitivity to neoadjuvant chemoradiotherapy in patients with rectal cancer.

    Akiyoshi, Takashi / Gotoh, Osamu / Tanaka, Norio / Kiyotani, Kazuma / Yamamoto, Noriko / Ueno, Masashi / Fukunaga, Yosuke / Mori, Seiichi

    Cancer immunology, immunotherapy : CII

    2020  Volume 70, Issue 2, Page(s) 509–518

    Abstract: Emerging evidence suggests that an increased density of pre-treatment ... ...

    Abstract Emerging evidence suggests that an increased density of pre-treatment CD8
    MeSH term(s) Chemoradiotherapy/methods ; Female ; Humans ; Male ; Neoadjuvant Therapy/methods ; Rectal Neoplasms/drug therapy ; Rectal Neoplasms/radiotherapy ; T-Lymphocytes/metabolism
    Language English
    Publishing date 2020-08-26
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 195342-4
    ISSN 1432-0851 ; 0340-7004
    ISSN (online) 1432-0851
    ISSN 0340-7004
    DOI 10.1007/s00262-020-02705-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: A heterozygous splicing variant IVS9-7A > T in intron 9 of the MAPT gene in a patient with right-temporal variant frontotemporal dementia with atypical 4 repeat tauopathy.

    Mori, Kohji / Shigenobu, Kazue / Beck, Goichi / Uozumi, Ryota / Satake, Yuto / Suzuki, Maki / Kondo, Shizuko / Gotoh, Shiho / Yonenobu, Yuki / Kawai, Makiko / Suzuki, Yuki / Saito, Yuko / Morii, Eiichi / Hasegawa, Masato / Mochizuki, Hideki / Murayama, Shigeo / Ikeda, Manabu

    Acta neuropathologica communications

    2023  Volume 11, Issue 1, Page(s) 130

    Abstract: ... site of intron 9/exon 10 boundary (MAPT IVS9-7A > T). Postmortem neuropathological analysis revealed ... These data strongly suggest that the MAPT IVS9-7 A > T variant found in our case is a novel mutation ...

    Abstract Right temporal variant frontotemporal dementia, also called right-predominant semantic dementia, often has an unclear position within the framework of the updated diagnostic criteria for behavioral variant frontotemporal dementia or primary progressive aphasia. Recent studies have suggested that this population may be clinically, neuropathologically, and genetically distinct from those with behavioral variant frontotemporal dementia or left-predominant typical semantic variant primary progressive aphasia. Here we describe a Japanese case of right temporal variant frontotemporal dementia with novel heterozygous MAPT mutation Adenine to Thymidine in intervening sequence (IVS) 9 at position -7 from 3' splicing site of intron 9/exon 10 boundary (MAPT IVS9-7A > T). Postmortem neuropathological analysis revealed a predominant accumulation of 4 repeat tau, especially in the temporal lobe, amygdala, and substantia nigra, but lacked astrocytic plaques or tufted astrocytes. Immunoelectron microscopy of the tau filaments extracted from the brain revealed a ribbon-like structure. Moreover, a cellular MAPT splicing assay confirmed that this novel variant promoted the inclusion of exon 10, resulting in the predominant production of 4 repeat tau. These data strongly suggest that the MAPT IVS9-7 A > T variant found in our case is a novel mutation that stimulates the inclusion of exon 10 through alternative splicing of MAPT transcript and causes predominant 4 repeat tauopathy which clinically presents as right temporal variant frontotemporal dementia.
    MeSH term(s) Humans ; Aphasia, Primary Progressive/pathology ; Frontotemporal Dementia/genetics ; Frontotemporal Dementia/pathology ; Introns/genetics ; Mutation ; Pick Disease of the Brain/pathology ; tau Proteins/genetics ; tau Proteins/metabolism ; Tauopathies/genetics ; Tauopathies/pathology ; Temporal Lobe/metabolism
    Chemical Substances MAPT protein, human ; tau Proteins
    Language English
    Publishing date 2023-08-10
    Publishing country England
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2715589-4
    ISSN 2051-5960 ; 2051-5960
    ISSN (online) 2051-5960
    ISSN 2051-5960
    DOI 10.1186/s40478-023-01629-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Effects of anti-allergic drugs on T cell-mediated nasal hyperresponsiveness in a murine model of allergic rhinitis.

    Nishimura, Tomoe / Kaminuma, Osamu / Saeki, Mayumi / Kitamura, Noriko / Gotoh, Minoru / Mori, Akio / Hiroi, Takachika

    Allergology international : official journal of the Japanese Society of Allergology

    2018  Volume 67S, Page(s) S25–S31

    Abstract: Background: We have recently demonstrated that T cell-mediated nasal hyperresponsiveness (NHR) is ... used for the treatment of AR, the efficacy of these drugs on T cell-mediated NHR have not been ... affected IgE and IgG production. Antigen-induced NHR and the increase in antigen-specific T ...

    Abstract Background: We have recently demonstrated that T cell-mediated nasal hyperresponsiveness (NHR) is a representative pathophysiological feature of allergic rhinitis (AR). Although several anti-allergic drugs are used for the treatment of AR, the efficacy of these drugs on T cell-mediated NHR have not been elucidated. In these studies we investigated the effects of dexamethasone (Dex), montelukast (Mk), and chlorpheniramine (Chl) on NHR in antigen-immunized and antigen-specific Th2 cell-transferred mice.
    Methods: OVA-immunized BALB/c mice were treated with Dex, Mk, or Chl and challenged intranasally with OVA. We then assessed NHR, the number of inflammatory cells in the nasal lavage fluid (NALF), mRNA expression of Th2 cytokines in the nasal tissue, the population of CD3
    Results: Dex significantly suppressed antigen-induced NHR, inflammatory cell infiltration, and IL-4, IL-5, IL-6, and IL-13 expression in immunized mice. Chl was completely ineffective, and only IL-13 expression was suppressed by Mk. None of these drugs affected IgE and IgG production. Antigen-induced NHR and the increase in antigen-specific T cells in the NALT of Th2 cell-transferred mice were inhibited by Dex, but not by Mk or Chl.
    Conclusions: Steroids are effective for the reduction of NHR in AR by suppressing the accumulation of inflammatory cells, especially antigen-specific T cells.
    MeSH term(s) Acetates/pharmacology ; Animals ; Anti-Allergic Agents/pharmacology ; CD4-Positive T-Lymphocytes/drug effects ; CD4-Positive T-Lymphocytes/immunology ; Chlorpheniramine/pharmacology ; Cytokines/immunology ; Dexamethasone/pharmacology ; Disease Models, Animal ; Female ; Immunoglobulin E/blood ; Immunoglobulin G/blood ; Mice ; Mice, Inbred BALB C ; Nasal Lavage Fluid/cytology ; Nasal Lavage Fluid/immunology ; Nasal Mucosa/drug effects ; Nasal Mucosa/immunology ; Quinolines/pharmacology ; Rhinitis, Allergic/blood ; Rhinitis, Allergic/immunology
    Chemical Substances Acetates ; Anti-Allergic Agents ; Cytokines ; Immunoglobulin G ; Quinolines ; Immunoglobulin E (37341-29-0) ; Chlorpheniramine (3U6IO1965U) ; Dexamethasone (7S5I7G3JQL) ; montelukast (MHM278SD3E)
    Language English
    Publishing date 2018-06-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 1336498-4
    ISSN 1440-1592 ; 1323-8930
    ISSN (online) 1440-1592
    ISSN 1323-8930
    DOI 10.1016/j.alit.2018.05.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Chromosome 14 Abnormality with a Breakpoint of p12 in Adult T-cell Leukemia.

    Itoh, K / Oku, N / Gotoh, H / Inaba, T / Murakami, S / Takeda, N / Ura, Y / Shimazaki, C / Nakanishi, S / Haruyama, H / Nakagawa, M / Fujita, N / Taniwaki, M

    Leukemia & lymphoma

    2016  Volume 3, Issue 5-6, Page(s) 447–450

    Abstract: We describe a patient with adult T-cell leukemia (ATL) with a 14p chromosomal abnormality ...

    Abstract We describe a patient with adult T-cell leukemia (ATL) with a 14p chromosomal abnormality. Cytogenetic study revealed two clonal populations of leukemic cells in the peripheral blood sample. Both clones were karyotypically related to each other. One of them showed rearrangement of chromosome 14 at break band p 12 (14p12) in addition to + 3, + 7, -X and del(6) (q14q21). The nucleolar organizer region (NOR) is assigned to the band 14p12 and the role of the rearrangement of chromosome 14p12 in the pathogenesis of ATL is discussed.
    Language English
    Publishing date 2016-07-27
    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 10.3109/10428199109070292
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Dysbiosis Contributes to Arthritis Development via Activation of Autoreactive T Cells in the Intestine.

    Maeda, Yuichi / Kurakawa, Takashi / Umemoto, Eiji / Motooka, Daisuke / Ito, Yoshinaga / Gotoh, Kazuyoshi / Hirota, Keiji / Matsushita, Masato / Furuta, Yoki / Narazaki, Masashi / Sakaguchi, Noriko / Kayama, Hisako / Nakamura, Shota / Iida, Tetsuya / Saeki, Yukihiko / Kumanogoh, Atsushi / Sakaguchi, Shimon / Takeda, Kiyoshi

    Arthritis & rheumatology (Hoboken, N.J.)

    2016  Volume 68, Issue 11, Page(s) 2646–2661

    Abstract: ... showed enhanced interleukin-17 (IL-17) responses to RPL23A. Naive SKG mouse T cells cocultured with P ... T cells in the intestine. Autoreactive SKG mouse T cells are activated by dysbiotic microbiota ...

    Abstract Objective: The intestinal microbiota is involved in the pathogenesis of arthritis. Altered microbiota composition has been demonstrated in patients with rheumatoid arthritis (RA). However, it remains unclear how dysbiosis contributes to the development of arthritis. The aim of this study was to investigate whether altered composition of human intestinal microbiota in RA patients contributes to the development of arthritis.
    Methods: We analyzed the fecal microbiota of patients with early RA and healthy controls, using 16S ribosomal RNA-based deep sequencing. We inoculated fecal samples from RA patients and healthy controls into germ-free arthritis-prone SKG mice and evaluated the immune responses. We also analyzed whether the lymphocytes of SKG mice harboring microbiota from RA patients react with the arthritis-related autoantigen 60S ribosomal protein L23a (RPL23A).
    Results: A subpopulation of patients with early RA harbored intestinal microbiota dominated by Prevotella copri; SKG mice harboring microbiota from RA patients had an increased number of intestinal Th17 cells and developed severe arthritis when treated with zymosan. Lymphocytes in regional lymph nodes and the colon, but not the spleen, of these mice showed enhanced interleukin-17 (IL-17) responses to RPL23A. Naive SKG mouse T cells cocultured with P copri-stimulated dendritic cells produced IL-17 in response to RPL23A and rapidly induced arthritis.
    Conclusion: We demonstrated that dysbiosis increases sensitivity to arthritis via activation of autoreactive T cells in the intestine. Autoreactive SKG mouse T cells are activated by dysbiotic microbiota in the intestine, causing joint inflammation. Dysbiosis is an environmental factor that triggers arthritis development in genetically susceptible mice.
    MeSH term(s) Aged ; Animals ; Arthritis, Experimental/chemically induced ; Arthritis, Experimental/immunology ; Arthritis, Experimental/microbiology ; Arthritis, Rheumatoid/immunology ; Arthritis, Rheumatoid/microbiology ; Autoantigens/immunology ; Autoimmunity/immunology ; Case-Control Studies ; Colon/immunology ; DNA, Bacterial/genetics ; Dysbiosis/immunology ; Female ; Gastrointestinal Microbiome/genetics ; Gastrointestinal Microbiome/immunology ; Humans ; Interleukin-17/immunology ; Intestines/immunology ; Intestines/microbiology ; Lymph Nodes/immunology ; Male ; Mice ; Middle Aged ; RNA, Ribosomal, 16S/genetics ; Ribosomal Proteins/immunology ; Spleen/immunology ; T-Lymphocytes/immunology ; Th17 Cells/immunology ; Zymosan/toxicity
    Chemical Substances Autoantigens ; DNA, Bacterial ; Interleukin-17 ; RNA, Ribosomal, 16S ; Ribosomal Proteins ; Rpl23a protein, mouse ; Zymosan (9010-72-4)
    Language English
    Publishing date 2016
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2756371-6
    ISSN 2326-5205 ; 2326-5191
    ISSN (online) 2326-5205
    ISSN 2326-5191
    DOI 10.1002/art.39783
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top