Using personalized medicine in gliomas: a genomic approach to diagnosis and overcoming treatment resistance in a case with pleomorphic xanthoastrocytoma
Identifieur interne : 000123 ( Pmc/Curation ); précédent : 000122; suivant : 000124Using personalized medicine in gliomas: a genomic approach to diagnosis and overcoming treatment resistance in a case with pleomorphic xanthoastrocytoma
Auteurs : Yolanda Pi A ; Michael J. Fusco ; Robert J. Macaulay ; Christine M. Walko ; Edwin Peguero ; Brittany R. Evernden ; Keiran S. Smalley ; Peter ForsythSource :
- Journal of Neurology [ 0340-5354 ] ; 2019.
Abstract
A patient who was initially considered to have a glioblastoma (GBM) had molecular analysis, showing that it was a pleomorphic xanthoastrocytoma (PXA). Up to 78% of PXA tumors have
A 20-year-old man found to have a large brain mass with midline shift underwent resection. He was diagnosed with “GBM” and treated with radiation and temozolomide with subsequent disease recurrence. Review of histology showed malignant PXA with
This is the first report of a PXA patient receiving therapy with BRAF MEKi and an autophagy inhibitor with prolonged stable disease. This patient highlights the importance of a molecular interrogation in gliomas to provide an integrated diagnosis and effective treatment. This may be useful in up to 3% of glioma patients with
Url:
DOI: 10.1007/s00415-019-09575-8
PubMed: 31748891
PubMed Central: 7035305
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Using personalized medicine in gliomas: a genomic approach to diagnosis and overcoming treatment resistance in a case with pleomorphic xanthoastrocytoma</title><author><name sortKey="Pi A, Yolanda" sort="Pi A, Yolanda" uniqKey="Pi A Y" first="Yolanda" last="Pi A">Yolanda Pi A</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Fusco, Michael J" sort="Fusco, Michael J" uniqKey="Fusco M" first="Michael J." last="Fusco">Michael J. Fusco</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Macaulay, Robert J" sort="Macaulay, Robert J" uniqKey="Macaulay R" first="Robert J." last="Macaulay">Robert J. Macaulay</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Walko, Christine M" sort="Walko, Christine M" uniqKey="Walko C" first="Christine M." last="Walko">Christine M. Walko</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Peguero, Edwin" sort="Peguero, Edwin" uniqKey="Peguero E" first="Edwin" last="Peguero">Edwin Peguero</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Evernden, Brittany R" sort="Evernden, Brittany R" uniqKey="Evernden B" first="Brittany R." last="Evernden">Brittany R. Evernden</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Smalley, Keiran S" sort="Smalley, Keiran S" uniqKey="Smalley K" first="Keiran S." last="Smalley">Keiran S. Smalley</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Forsyth, Peter" sort="Forsyth, Peter" uniqKey="Forsyth P" first="Peter" last="Forsyth">Peter Forsyth</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">31748891</idno><idno type="pmc">7035305</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7035305</idno><idno type="RBID">PMC:7035305</idno><idno type="doi">10.1007/s00415-019-09575-8</idno><date when="2019">2019</date><idno type="wicri:Area/Pmc/Corpus">000123</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000123</idno><idno type="wicri:Area/Pmc/Curation">000123</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000123</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Using personalized medicine in gliomas: a genomic approach to diagnosis and overcoming treatment resistance in a case with pleomorphic xanthoastrocytoma</title><author><name sortKey="Pi A, Yolanda" sort="Pi A, Yolanda" uniqKey="Pi A Y" first="Yolanda" last="Pi A">Yolanda Pi A</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Fusco, Michael J" sort="Fusco, Michael J" uniqKey="Fusco M" first="Michael J." last="Fusco">Michael J. Fusco</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Macaulay, Robert J" sort="Macaulay, Robert J" uniqKey="Macaulay R" first="Robert J." last="Macaulay">Robert J. Macaulay</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Walko, Christine M" sort="Walko, Christine M" uniqKey="Walko C" first="Christine M." last="Walko">Christine M. Walko</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Peguero, Edwin" sort="Peguero, Edwin" uniqKey="Peguero E" first="Edwin" last="Peguero">Edwin Peguero</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Evernden, Brittany R" sort="Evernden, Brittany R" uniqKey="Evernden B" first="Brittany R." last="Evernden">Brittany R. Evernden</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Smalley, Keiran S" sort="Smalley, Keiran S" uniqKey="Smalley K" first="Keiran S." last="Smalley">Keiran S. Smalley</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author><author><name sortKey="Forsyth, Peter" sort="Forsyth, Peter" uniqKey="Forsyth P" first="Peter" last="Forsyth">Peter Forsyth</name><affiliation><nlm:aff id="Aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">Journal of Neurology</title><idno type="ISSN">0340-5354</idno><idno type="eISSN">1432-1459</idno><imprint><date when="2019">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Introduction</title><p id="Par1">A patient who was initially considered to have a glioblastoma (GBM) had molecular analysis, showing that it was a pleomorphic xanthoastrocytoma (PXA). Up to 78% of PXA tumors have <italic>BRAF</italic> V600E mutations. Primary brain tumors with <italic>BRAF</italic> mutations can have a good response to <italic>BRAF</italic> MEK inhibitors (BRAF MEKi), and there may be a synergistic response when combined with autophagy inhibitors.</p></sec><sec><title>Presentation of the case</title><p id="Par2">A 20-year-old man found to have a large brain mass with midline shift underwent resection. He was diagnosed with “GBM” and treated with radiation and temozolomide with subsequent disease recurrence. Review of histology showed malignant PXA with <italic>BRAF</italic> V600E mutation. Treatment with Dabrafenib and Trametinib was started, and tumor size increased in size after 14 months of treatment. Given studies showing that resistance to <italic>BRAF</italic> inhibition can be overcome by autophagy inhibition, chloroquine was added. Patient has been on “triple” therapy for 15 months and has radiographically Stable Disease. At MCC, 3% of patients with gliomas have <italic>BRAF</italic> mutations who could potentially benefit from this combination therapy.</p></sec><sec><title>Conclusion</title><p id="Par3">This is the first report of a PXA patient receiving therapy with BRAF MEKi and an autophagy inhibitor with prolonged stable disease. This patient highlights the importance of a molecular interrogation in gliomas to provide an integrated diagnosis and effective treatment. This may be useful in up to 3% of glioma patients with <italic>BRAF</italic> mutations. 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open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Neurol</journal-id><journal-id journal-id-type="iso-abbrev">J. Neurol</journal-id><journal-title-group><journal-title>Journal of Neurology</journal-title></journal-title-group><issn pub-type="ppub">0340-5354</issn><issn pub-type="epub">1432-1459</issn><publisher><publisher-name>Springer Berlin Heidelberg</publisher-name><publisher-loc>Berlin/Heidelberg</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">31748891</article-id><article-id pub-id-type="pmc">7035305</article-id><article-id pub-id-type="publisher-id">9575</article-id><article-id pub-id-type="doi">10.1007/s00415-019-09575-8</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Communication</subject></subj-group></article-categories><title-group><article-title>Using personalized medicine in gliomas: a genomic approach to diagnosis and overcoming treatment resistance in a case with pleomorphic xanthoastrocytoma</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0003-1383-5704</contrib-id><name><surname>Piña</surname><given-names>Yolanda</given-names></name><address><email>yolanda.pina@moffitt.org</email></address><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Fusco</surname><given-names>Michael J.</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Macaulay</surname><given-names>Robert J.</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Walko</surname><given-names>Christine M.</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Peguero</surname><given-names>Edwin</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Evernden</surname><given-names>Brittany R.</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Smalley</surname><given-names>Keiran S.</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Forsyth</surname><given-names>Peter</given-names></name><xref ref-type="aff" rid="Aff1"></xref></contrib><aff id="Aff1"><institution-wrap><institution-id institution-id-type="GRID">grid.468198.a</institution-id><institution-id institution-id-type="ISNI">0000 0000 9891 5233</institution-id><institution>H. Lee Moffitt Cancer Center & Research Institute,</institution></institution-wrap>12902 USF Magnolia Dr., Tampa, FL 33617 USA</aff></contrib-group><pub-date pub-type="epub"><day>21</day><month>11</month><year>2019</year></pub-date><pub-date pub-type="pmc-release"><day>21</day><month>11</month><year>2019</year></pub-date><pub-date pub-type="ppub"><year>2020</year></pub-date><volume>267</volume><issue>3</issue><fpage>783</fpage><lpage>790</lpage><history><date date-type="received"><day>11</day><month>7</month><year>2019</year></date><date date-type="rev-recd"><day>30</day><month>9</month><year>2019</year></date><date date-type="accepted"><day>3</day><month>10</month><year>2019</year></date></history><permissions><copyright-statement>© The Author(s) 2019</copyright-statement><license license-type="OpenAccess"><license-p><bold>Open Access</bold>This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.</license-p></license></permissions><abstract id="Abs1"><sec><title>Introduction</title><p id="Par1">A patient who was initially considered to have a glioblastoma (GBM) had molecular analysis, showing that it was a pleomorphic xanthoastrocytoma (PXA). Up to 78% of PXA tumors have <italic>BRAF</italic> V600E mutations. Primary brain tumors with <italic>BRAF</italic> mutations can have a good response to <italic>BRAF</italic> MEK inhibitors (BRAF MEKi), and there may be a synergistic response when combined with autophagy inhibitors.</p></sec><sec><title>Presentation of the case</title><p id="Par2">A 20-year-old man found to have a large brain mass with midline shift underwent resection. He was diagnosed with “GBM” and treated with radiation and temozolomide with subsequent disease recurrence. Review of histology showed malignant PXA with <italic>BRAF</italic> V600E mutation. Treatment with Dabrafenib and Trametinib was started, and tumor size increased in size after 14 months of treatment. Given studies showing that resistance to <italic>BRAF</italic> inhibition can be overcome by autophagy inhibition, chloroquine was added. Patient has been on “triple” therapy for 15 months and has radiographically Stable Disease. At MCC, 3% of patients with gliomas have <italic>BRAF</italic> mutations who could potentially benefit from this combination therapy.</p></sec><sec><title>Conclusion</title><p id="Par3">This is the first report of a PXA patient receiving therapy with BRAF MEKi and an autophagy inhibitor with prolonged stable disease. This patient highlights the importance of a molecular interrogation in gliomas to provide an integrated diagnosis and effective treatment. This may be useful in up to 3% of glioma patients with <italic>BRAF</italic> mutations. Molecular testing in neuro-oncology is providing new avenues of diagnosis and treatment, and detailed molecular interrogation should be considered routine.</p></sec></abstract><kwd-group xml:lang="en"><title>Keywords</title><kwd>Pleomorphic xanthoastrocytoma</kwd><kwd><italic>BRAF</italic> inhibition</kwd><kwd><italic>MEK</italic> inhibition</kwd><kwd>V600E mutation</kwd><kwd>Autophagy inhibition</kwd><kwd>Chloroquine</kwd></kwd-group><custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name><meta-value>© Springer-Verlag GmbH Germany, part of Springer Nature 2020</meta-value></custom-meta></custom-meta-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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