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  • 1
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    An antigen produced by splicing of noncontiguous peptides in the reverse order (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-09-09
    Description: CD8-positive T lymphocytes recognize peptides that are usually derived from the degradation of cellular proteins and are presented by class I molecules of the major histocompatibility complex. Here we describe a human minor histocompatibility antigen created by a polymorphism in the SP110 nuclear phosphoprotein gene. The antigenic peptide comprises two noncontiguous SP110 peptide segments spliced together in reverse order to that in which they occur in the predicted SP110 protein. The antigenic peptide could be produced in vitro by incubation of precursor peptides with highly purified 20S proteasomes. Cutting and splicing probably occur within the proteasome by transpeptidation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Edus H -- Vigneron, Nathalie J -- Gavin, Marc A -- Coulie, Pierre G -- Stroobant, Vincent -- Dalet, Alexandre -- Tykodi, Scott S -- Xuereb, Suzanne M -- Mito, Jeffrey K -- Riddell, Stanley R -- Van den Eynde, Benoit J -- CA106512/CA/NCI NIH HHS/ -- CA18029/CA/NCI NIH HHS/ -- P01 CA018029/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1444-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Immunology, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16960008" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Motifs ; Amino Acid Sequence ; Amino Acid Substitution ; *Antigen Presentation ; B-Lymphocytes/immunology ; Cell Line, Transformed ; Cytotoxicity, Immunologic ; Electroporation ; HLA-A Antigens/immunology ; Humans ; Interferon-gamma/metabolism ; Male ; Middle Aged ; Minor Histocompatibility Antigens/genetics/*immunology/*metabolism ; Molecular Sequence Data ; Nuclear Proteins/chemistry/genetics/*immunology/*metabolism ; Peptide Fragments/metabolism ; Polymorphism, Single Nucleotide ; Proteasome Endopeptidase Complex/metabolism ; *Protein Splicing ; T-Lymphocytes, Cytotoxic/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Human tumor genomics and zebrafish modeling identify SPRED1 loss as a driver of mucosal melanoma (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018-11-30
    Description: Melanomas originating from mucosal surfaces have low mutation burden, genomic instability, and poor prognosis. To identify potential driver genes, we sequenced hundreds of cancer-related genes in 43 human mucosal melanomas, cataloging point mutations, amplifications, and deletions. The SPRED1 gene, which encodes a negative regulator of mitogen-activated protein kinase (MAPK) signaling, was inactivated in 37% of the tumors. Four distinct genotypes were associated with SPRED1 loss. Using a rapid, tissue-specific CRISPR technique to model these genotypes in zebrafish, we found that SPRED1 functions as a tumor suppressor, particularly in the context of KIT mutations. SPRED1 knockdown caused MAPK activation, increased cell proliferation, and conferred resistance to drugs inhibiting KIT tyrosine kinase activity. These findings provide a rationale for MAPK inhibition in SPRED1-deficient melanomas and introduce a zebrafish modeling approach that can be used more generally to dissect genetic interactions in cancer.
    Keywords: Genetics, Medicine, Diseases
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Human tumor genomics and zebrafish modeling identify SPRED1 loss as a driver of mucosal melanoma (2018)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2018
    Description: 〈p〉Melanomas originating from mucosal surfaces have low mutation burden, genomic instability, and poor prognosis. To identify potential driver genes, we sequenced hundreds of cancer-related genes in 43 human mucosal melanomas, cataloguing point mutations, amplifications and deletions. The 〈i〉SPRED1〈/i〉 gene, which encodes a negative regulator of MAPK signaling, was inactivated in 37% of the tumors. Four distinct genotypes were associated with 〈i〉SPRED1〈/i〉 loss. Using a rapid, tissue-specific CRISPR technique to model these genotypes in zebrafish, we found that 〈i〉SPRED1〈/i〉 functions as a tumor suppressor, particularly in the context of 〈i〉KIT〈/i〉 mutations. 〈i〉SPRED1〈/i〉 knockdown caused MAPK activation, increased cell proliferation and conferred resistance to drugs inhibiting KIT tyrosine kinase activity. These findings provide a rationale for MAPK inhibition in SPRED1-deficient melanomas and introduce a zebrafish modeling approach that can be used more generally to dissect genetic interactions in cancer.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Human tumor genomics and zebrafish modeling identify SPRED1 loss as a driver of mucosal melanoma (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018
    Description: 〈p〉Melanomas originating from mucosal surfaces have low mutation burden, genomic instability, and poor prognosis. To identify potential driver genes, we sequenced hundreds of cancer-related genes in 43 human mucosal melanomas, cataloging point mutations, amplifications, and deletions. The 〈i〉SPRED1〈/i〉 gene, which encodes a negative regulator of mitogen-activated protein kinase (MAPK) signaling, was inactivated in 37% of the tumors. Four distinct genotypes were associated with 〈i〉SPRED1〈/i〉 loss. Using a rapid, tissue-specific CRISPR technique to model these genotypes in zebrafish, we found that 〈i〉SPRED1〈/i〉 functions as a tumor suppressor, particularly in the context of 〈i〉KIT〈/i〉 mutations. 〈i〉SPRED1〈/i〉 knockdown caused MAPK activation, increased cell proliferation, and conferred resistance to drugs inhibiting KIT tyrosine kinase activity. These findings provide a rationale for MAPK inhibition in SPRED1-deficient melanomas and introduce a zebrafish modeling approach that can be used more generally to dissect genetic interactions in cancer.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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