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  1. Article ; Online: VIRTUS: a pipeline for comprehensive virus analysis from conventional RNA-seq data.

    Yasumizu, Yoshiaki / Hara, Atsushi / Sakaguchi, Shimon / Ohkura, Naganari

    Bioinformatics (Oxford, England)

    2020  Volume 37, Issue 10, Page(s) 1465–1467

    Abstract: Summary: The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of bulk and ... ...

    Abstract Summary: The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of bulk and single-cell RNA-sequencing of human cells. Our pipeline, named VIRTUS (VIRal Transcript Usage Sensor), was able to detect 762 viruses including herpesviruses, retroviruses and even SARS-CoV-2 (COVID-19), and quantify their transcripts in the sequence data. This tool thus enabled simultaneously detecting infected cells, the composition of multiple viruses within the cell, and the endogenous host-gene expression profile of the cell. This bioinformatics method would be instrumental in addressing the possible effects of covertly infecting viruses on certain diseases and developing new treatments to target such viruses.
    Availability and implementation: : VIRTUS is implemented using Common Workflow Language and Docker under a CC-NC license. VIRTUS is freely available at https://github.com/yyoshiaki/VIRTUS.
    Supplementary information: Supplementary data are available at Bioinformatics online.
    MeSH term(s) COVID-19 ; Humans ; RNA-Seq ; SARS-CoV-2 ; Sequence Analysis, RNA ; Software
    Keywords covid19
    Language English
    Publishing date 2020-06-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1422668-6
    ISSN 1367-4811 ; 1367-4803
    ISSN (online) 1367-4811
    ISSN 1367-4803
    DOI 10.1093/bioinformatics/btaa859
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Single-cell transcriptome landscape of circulating CD4

    Yasumizu, Yoshiaki / Takeuchi, Daiki / Morimoto, Reo / Takeshima, Yusuke / Okuno, Tatsusada / Kinoshita, Makoto / Morita, Takayoshi / Kato, Yasuhiro / Wang, Min / Motooka, Daisuke / Okuzaki, Daisuke / Nakamura, Yamami / Mikami, Norihisa / Arai, Masaya / Zhang, Xuan / Kumanogoh, Atsushi / Mochizuki, Hideki / Ohkura, Naganari / Sakaguchi, Shimon

    Cell genomics

    2024  Volume 4, Issue 2, Page(s) 100473

    Abstract: ... ...

    Abstract CD4
    MeSH term(s) Humans ; Transcriptome/genetics ; T-Lymphocytes ; Autoimmune Diseases/genetics ; CD4-Positive T-Lymphocytes
    Language English
    Publishing date 2024-01-03
    Publishing country United States
    Document type Meta-Analysis ; Journal Article
    ISSN 2666-979X
    ISSN (online) 2666-979X
    DOI 10.1016/j.xgen.2023.100473
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Increased anti-oxidative action compensates for collagen tissue degeneration in vitiligo dermis.

    Yokoi, Kazunori / Yasumizu, Yoshiaki / Ohkura, Naganari / Shinzawa, Koei / Okuzaki, Daisuke / Shimoda, Nene / Ando, Hideya / Yamada, Nanako / Fujimoto, Manabu / Tanemura, Atsushi

    Pigment cell & melanoma research

    2023  Volume 36, Issue 5, Page(s) 355–364

    Abstract: Vitiligo is a common depigmentation disorder characterized by the selective loss of melanocytes. In our daily clinic experience, we noticed that the skin tightness of hypopigmented lesions would be more evident in comparison to that of uninvolved ... ...

    Abstract Vitiligo is a common depigmentation disorder characterized by the selective loss of melanocytes. In our daily clinic experience, we noticed that the skin tightness of hypopigmented lesions would be more evident in comparison to that of uninvolved perilesional skin in vitiligo patients. Therefore, we hypothesized that collagen homeostasis might be maintained in vitiligo lesions, irrespective of the substantial excessive oxidative stress that occurs in association with the disease. We found that the expression levels of collagen-related genes and anti-oxidative enzymes were upregulated in vitiligo-derived fibroblasts. Abundant collagenous fibers were observed in the papillary dermis of vitiligo lesions in comparison to uninvolved perilesional skin by electron microscopy. The production of matrix metalloproteinases that degraded collagen fibers was suppressed. The deposition of acrolein adduct protein, which is a product of oxidative stress, was significantly reduced in vitiligo dermis and fibroblasts. As part of the mechanism, we found upregulation of the NRF2 signaling pathway activity, which is an important defense system against oxidative stress. Taken together, we demonstrated that the anti-oxidative action and collagen production were upregulated and that the collagen degeneration was attenuated in vitiligo dermis. These new findings may provide important clues for the maintenance of antioxidant ability in vitiligo lesions.
    MeSH term(s) Humans ; Vitiligo/pathology ; Hypopigmentation/metabolism ; Skin/pathology ; Melanocytes/metabolism ; Oxidative Stress ; Dermis/pathology ; Collagen/metabolism
    Chemical Substances Collagen (9007-34-5)
    Language English
    Publishing date 2023-05-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2409570-9
    ISSN 1755-148X ; 1600-0749 ; 0893-5785 ; 1755-1471
    ISSN (online) 1755-148X ; 1600-0749
    ISSN 0893-5785 ; 1755-1471
    DOI 10.1111/pcmr.13094
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Systems Analysis of Immune Changes after B-cell Depletion in Autoimmune Multiple Sclerosis.

    Wei, Jessica / Moon, Jeonghyeon / Yasumizu, Yoshiaki / Zhang, Le / Radassi, Khadir / Buitrago-Pocasangre, Nicholas / Deerhake, M Elizabeth / Strauli, Nicholas / Chan, Alan / Herman, Ann / Pedotte, Rosetta / Raposo, Catarina / Tackenberg, Björn / Yim, Isaiah / Pappalardo, Jenna / Longbrake, Erin E / Sumida, Tomokazu S / Axisa, Pierre-Paul / Hafler, David A

    bioRxiv : the preprint server for biology

    2024  

    Abstract: Multiple sclerosis (MS) is a complex genetically mediated autoimmune disease of the central nervous system where anti-CD20-mediated B cell depletion is remarkably effective in the treatment of early disease. While previous studies investigated the effect ...

    Abstract Multiple sclerosis (MS) is a complex genetically mediated autoimmune disease of the central nervous system where anti-CD20-mediated B cell depletion is remarkably effective in the treatment of early disease. While previous studies investigated the effect of B cell depletion on select immune cell subsets using flow cytometry-based methods, the therapeutic impact on patient immune landscape is unknown. In this study, we explored how a therapy-driven "
    Language English
    Publishing date 2024-02-09
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.02.07.576204
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Localization of KRAS downstream target ARL4C to invasive pseudopods accelerates pancreatic cancer cell invasion.

    Harada, Akikazu / Matsumoto, Shinji / Yasumizu, Yoshiaki / Shojima, Kensaku / Akama, Toshiyuki / Eguchi, Hidetoshi / Kikuchi, Akira

    eLife

    2021  Volume 10

    Abstract: Pancreatic cancer has a high mortality rate due to metastasis. Whereas KRAS is mutated in most pancreatic cancer patients, controlling KRAS or its downstream effectors has not been succeeded clinically. ARL4C is a small G protein whose expression is ... ...

    Abstract Pancreatic cancer has a high mortality rate due to metastasis. Whereas KRAS is mutated in most pancreatic cancer patients, controlling KRAS or its downstream effectors has not been succeeded clinically. ARL4C is a small G protein whose expression is induced by the Wnt and EGF-RAS pathways. In the present study, we found that ARL4C is frequently overexpressed in pancreatic cancer patients and showed that its localization to invasive pseudopods is required for cancer cell invasion. IQGAP1 was identified as a novel interacting protein for ARL4C. ARL4C recruited IQGAP1 and its downstream effector, MMP14, to invasive pseudopods. Specific localization of ARL4C, IQGAP1, and MMP14 was the active site of invasion, which induced degradation of the extracellular matrix. Moreover, subcutaneously injected antisense oligonucleotide against ARL4C into tumor-bearing mice suppressed metastasis of pancreatic cancer. These results suggest that ARL4C-IQGAP1-MMP14 signaling is activated at invasive pseudopods of pancreatic cancer cells.
    MeSH term(s) ADP-Ribosylation Factors/genetics ; ADP-Ribosylation Factors/metabolism ; Aged ; Aged, 80 and over ; Animals ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; Mice ; Middle Aged ; Neoplasm Invasiveness/genetics ; Pancreatic Neoplasms/genetics ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Pseudopodia/physiology ; Tumor Cells, Cultured
    Chemical Substances KRAS protein, human ; ADP-Ribosylation Factors (EC 3.6.5.2) ; ARL4C protein, human (EC 3.6.5.2) ; Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2)
    Language English
    Publishing date 2021-09-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.66721
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: IL-27 produced during acute malaria infection regulates Plasmodium-specific memory CD4

    Macalinao, Maria Lourdes / Inoue, Shin-Ichi / Tsogtsaikhan, Sanjaadorj / Matsumoto, Hirotaka / Bayarsaikhan, Ganchimeg / Jian, Jiun-Yu / Kimura, Kazumi / Yasumizu, Yoshiaki / Inoue, Tsuyoshi / Yoshida, Hiroki / Hafalla, Julius / Kimura, Daisuke / Yui, Katsuyuki

    EMBO molecular medicine

    2023  Volume 15, Issue 12, Page(s) e17713

    Abstract: Malaria infection elicits both protective and pathogenic immune responses, and IL-27 is a critical cytokine that regulate effector responses during infection. Here, we identified a critical window of ... ...

    Abstract Malaria infection elicits both protective and pathogenic immune responses, and IL-27 is a critical cytokine that regulate effector responses during infection. Here, we identified a critical window of CD4
    MeSH term(s) Mice ; Animals ; T-Lymphocytes ; Interleukin-27 ; Malaria/pathology ; Plasmodium chabaudi ; CD4-Positive T-Lymphocytes ; Mice, Inbred C57BL
    Chemical Substances Interleukin-27
    Language English
    Publishing date 2023-10-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2467145-9
    ISSN 1757-4684 ; 1757-4676
    ISSN (online) 1757-4684
    ISSN 1757-4676
    DOI 10.15252/emmm.202317713
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: VIRTUS: a pipeline for comprehensive virus analysis from conventional RNA-seq data

    Yasumizu, Yoshiaki / Hara, Atsushi / Sakaguchi, Shimon / Ohkura, Naganari

    bioRxiv

    Abstract: The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of conventional and ... ...

    Abstract The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of conventional and single-cell RNA-sequencing of human cells. Our pipeline, named VIRTUS (VIRal Transcript Usage Sensor), was able to detect 763 viruses including herpesviruses, retroviruses, and even SARS-CoV-2 (COVID-19), and quantify their transcripts in the sequence data. This tool thus enabled simultaneously detecting infected cells, the composition of multiple viruses within the cell, and the endogenous host gene expression profile of the cell. This bioinformatics method would be instrumental in addressing the possible effects of covertly infecting viruses on certain diseases and developing new treatments to target such viruses. Availability and implementation VIRTUS is implemented using Common Workflow Language and Docker under a CC-NC license. VIRTUS is freely available at https://github.com/yyoshiaki/VIRTUS. Supplementary information Supplementary data are available at Bioinformatics online.
    Keywords covid19
    Publisher BioRxiv; WHO
    Document type Article ; Online
    DOI 10.1101/2020.05.08.085308
    Database COVID19

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  8. Article ; Online: VIRTUS: a pipeline for comprehensive virus analysis from conventional RNA-seq data

    Yasumizu, Yoshiaki / Hara, Atsushi / Sakaguchi, Shimon / Ohkura, Naganari

    bioRxiv

    Abstract: The possibility that RNA transcripts from clinical samples contain a plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of conventional and ... ...

    Abstract The possibility that RNA transcripts from clinical samples contain a plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of conventional and single-cell RNA-sequencing of human cells. Our pipeline, named VIRTUS (VIRal Transcript Usage Sensor), was able to detect 763 viruses including herpesviruses, retroviruses, and even SARS-CoV-2 (COVID-19), and quantify their transcripts in the sequence data. This tool thus enabled simultaneously detecting infected cells, the composition of multiple viruses within the cell, and the endogenous host gene expression profile of the cell. This bioinformatics method would be instrumental in addressing possible effects of covertly infecting viruses on certain diseases and developing new treatments to target1 such viruses.
    Keywords covid19
    Language English
    Publishing date 2020-05-09
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2020.05.08.085308
    Database COVID19

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  9. Article ; Online: Localization of KRAS downstream target ARL4C to invasive pseudopods accelerates pancreatic cancer cell invasion

    Akikazu Harada / Shinji Matsumoto / Yoshiaki Yasumizu / Kensaku Shojima / Toshiyuki Akama / Hidetoshi Eguchi / Akira Kikuchi

    eLife, Vol

    2021  Volume 10

    Abstract: Pancreatic cancer has a high mortality rate due to metastasis. Whereas KRAS is mutated in most pancreatic cancer patients, controlling KRAS or its downstream effectors has not been succeeded clinically. ARL4C is a small G protein whose expression is ... ...

    Abstract Pancreatic cancer has a high mortality rate due to metastasis. Whereas KRAS is mutated in most pancreatic cancer patients, controlling KRAS or its downstream effectors has not been succeeded clinically. ARL4C is a small G protein whose expression is induced by the Wnt and EGF–RAS pathways. In the present study, we found that ARL4C is frequently overexpressed in pancreatic cancer patients and showed that its localization to invasive pseudopods is required for cancer cell invasion. IQGAP1 was identified as a novel interacting protein for ARL4C. ARL4C recruited IQGAP1 and its downstream effector, MMP14, to invasive pseudopods. Specific localization of ARL4C, IQGAP1, and MMP14 was the active site of invasion, which induced degradation of the extracellular matrix. Moreover, subcutaneously injected antisense oligonucleotide against ARL4C into tumor-bearing mice suppressed metastasis of pancreatic cancer. These results suggest that ARL4C–IQGAP1–MMP14 signaling is activated at invasive pseudopods of pancreatic cancer cells.
    Keywords ARL4C ; invasion ; pancreatic cancer ; Medicine ; R ; Science ; Q ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher eLife Sciences Publications Ltd
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: VIRTUS

    Yasumizu, Yoshiaki / Hara, Atsushi / Sakaguchi, Shimon / Ohkura, Naganari

    Bioinformatics ; ISSN 1367-4803 1460-2059

    a pipeline for comprehensive virus analysis from conventional RNA-seq data

    2020  

    Abstract: Abstract The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of bulk and ... ...

    Abstract Abstract The possibility that RNA transcripts from clinical samples contain plenty of virus RNAs has not been pursued actively so far. We here developed a new tool for analyzing virus-transcribed mRNAs, not virus copy numbers, in the data of bulk and single-cell RNA-sequencing of human cells. Our pipeline, named VIRTUS (VIRal Transcript Usage Sensor), was able to detect 762 viruses including herpesviruses, retroviruses, and even SARS-CoV-2 (COVID-19), and quantify their transcripts in the sequence data. This tool thus enabled simultaneously detecting infected cells, the composition of multiple viruses within the cell, and the endogenous host gene expression profile of the cell. This bioinformatics method would be instrumental in addressing the possible effects of covertly infecting viruses on certain diseases and developing new treatments to target such viruses. Availability VIRTUS is implemented using Common Workflow Language and Docker under a CC-NC license. VIRTUS is freely available at https://github.com/yyoshiaki/VIRTUS. Supplementary information Supplementary data are available at Bioinformatics online.
    Keywords Statistics and Probability ; Computational Theory and Mathematics ; Biochemistry ; Molecular Biology ; Computational Mathematics ; Computer Science Applications ; covid19
    Language English
    Publisher Oxford University Press (OUP)
    Publishing country uk
    Document type Article ; Online
    DOI 10.1093/bioinformatics/btaa859
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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