Recombinant anti-podoplanin (NZ-1) immunotoxin for the treatment of malignant brain tumors
Identifieur interne : 003229 ( Pmc/Curation ); précédent : 003228; suivant : 003230Recombinant anti-podoplanin (NZ-1) immunotoxin for the treatment of malignant brain tumors
Auteurs : Vidyalakshmi Chandramohan [États-Unis] ; Xuhui Bao [États-Unis, République populaire de Chine] ; Mika Kato Kaneko [Japon] ; Yukinari Kato [Japon] ; Stephen T. Keir [États-Unis] ; Scott E. Szafranski [États-Unis] ; Chien-Tsun Kuan [États-Unis] ; Ira H. Pastan [États-Unis] ; Darell D. Bigner [États-Unis]Source :
- International journal of cancer. Journal international du cancer [ 0020-7136 ] ; 2012.
Abstract
Current study demonstrates the glioma tumor antigen podoplanin to be present at very high levels (>90%) in both glioblastoma (D2159MG, D08-0308MG, and D08-0493MG) and medulloblastoma (D283MED, D425MED, and DAOY) xenografts and cell line. We constructed a novel recombinant single-chain antibody variable region fragment (scFv), NZ-1, specific for podoplanin from the NZ-1 hybridoma. NZ-1-scFv was then fused to
Url:
DOI: 10.1002/ijc.27919
PubMed: 23115013
PubMed Central: 3809846
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<author><name sortKey="Keir, Stephen T" sort="Keir, Stephen T" uniqKey="Keir S" first="Stephen T." last="Keir">Stephen T. Keir</name>
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<author><name sortKey="Bigner, Darell D" sort="Bigner, Darell D" uniqKey="Bigner D" first="Darell D." last="Bigner">Darell D. Bigner</name>
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<series><title level="j">International journal of cancer. Journal international du cancer</title>
<idno type="ISSN">0020-7136</idno>
<idno type="eISSN">1097-0215</idno>
<imprint><date when="2012">2012</date>
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<front><div type="abstract" xml:lang="en"><p id="P1">Current study demonstrates the glioma tumor antigen podoplanin to be present at very high levels (>90%) in both glioblastoma (D2159MG, D08-0308MG, and D08-0493MG) and medulloblastoma (D283MED, D425MED, and DAOY) xenografts and cell line. We constructed a novel recombinant single-chain antibody variable region fragment (scFv), NZ-1, specific for podoplanin from the NZ-1 hybridoma. NZ-1-scFv was then fused to <italic>Pseudomonas</italic>
exotoxin A, carrying a C-terminal KDEL peptide (NZ-1-PE38KDEL). The immunotoxin was further stabilized by a disulfide (ds) bond between the heavy-chain and light-chain variable regions as the construct NZ-1-(scdsFv)-PE38KDEL. NZ-1-(scdsFv)-PE38KDEL exhibited significant reactivity to glioblastoma and medulloblastoma cells. The affinity of NZ-1-(scdsFv), NZ-1-(scdsFv)-PE38KDEL and NZ-1 antibody, for podoplanin peptide was 2.1×10<sup>−8</sup>
M, 8.0×10<sup>−8</sup>
M, and 3.9×10<sup>−10</sup>
M, respectively. In a protein stability assay, NZ-1-(scdsFv)-PE38KDEL retained 33-98% of its activity while that of NZ-1-PE38KDEL declined to 13% of its initial levels after incubation at 37°C for 3 days. <italic>In vitro</italic>
cytotoxicity of the NZ-1-(scdsFv)-PE38KDEL was measured in cells isolated from glioblastoma xenografts, D2159MG, D08-0308MG, D08-0493MG, and in the medulloblastoma D283MED, D425MED, and DOAY xenografts and cell line. The NZ-1-(scdsFv)-PE38KDEL immunotoxin was highly cytotoxic, with an IC<sub>50</sub>
in the range of 1.6–29 ng/mL. Significantly, NZ-1-(scdsFv)-PE38KDEL demonstrated tumor-growth delay, averaging 24 days (<italic>P</italic>
<0.001) and 21 days (<italic>P</italic>
<0.001) in D2159MG and D283MED <italic>in vivo</italic>
tumor models, respectively. Crucially, in the D425MED intracranial tumor model, NZ-1-(scdsFv)-PE38KDEL caused a 41% increase in survival (<italic>P</italic>
≤0.001). In preclinical studies, NZ-1-(scdsFv)-PE38KDEL exhibited significant potential as a targeting agent for malignant brain tumors.</p>
</div>
</front>
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<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
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<front><journal-meta><journal-id journal-id-type="nlm-journal-id">0042124</journal-id>
<journal-id journal-id-type="pubmed-jr-id">4284</journal-id>
<journal-id journal-id-type="nlm-ta">Int J Cancer</journal-id>
<journal-id journal-id-type="iso-abbrev">Int. J. Cancer</journal-id>
<journal-title-group><journal-title>International journal of cancer. Journal international du cancer</journal-title>
</journal-title-group>
<issn pub-type="ppub">0020-7136</issn>
<issn pub-type="epub">1097-0215</issn>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">23115013</article-id>
<article-id pub-id-type="pmc">3809846</article-id>
<article-id pub-id-type="doi">10.1002/ijc.27919</article-id>
<article-id pub-id-type="manuscript">NIHMS520128</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Recombinant anti-podoplanin (NZ-1) immunotoxin for the treatment of malignant brain tumors</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Chandramohan</surname>
<given-names>Vidyalakshmi</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Bao</surname>
<given-names>Xuhui</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
<xref ref-type="aff" rid="A2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kaneko</surname>
<given-names>Mika Kato</given-names>
</name>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kato</surname>
<given-names>Yukinari</given-names>
</name>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Keir</surname>
<given-names>Stephen T.</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Szafranski</surname>
<given-names>Scott E.</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kuan</surname>
<given-names>Chien-Tsun</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Pastan</surname>
<given-names>Ira H.</given-names>
</name>
<xref ref-type="aff" rid="A4">4</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Bigner</surname>
<given-names>Darell D.</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
</contrib-group>
<aff id="A1"><label>1</label>
Preston Robert Tisch Brain Tumor Center at Duke and Department of Pathology, Duke University Medical Center, Durham, NC</aff>
<aff id="A2"><label>2</label>
Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China</aff>
<aff id="A3"><label>3</label>
Molecular Tumor Marker Research Team, The Oncology Research Center, Advanced Molecular Epidemiology Research Institute, Yamagata University Faculty of Medicine, 2-2-2 Iida-nishi, Yamagata 990-9585, Japan</aff>
<aff id="A4"><label>4</label>
Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD</aff>
<author-notes><corresp id="FN1">Correspondence to: Darell D. Bigner, M.D., Ph.D., Department of Pathology, Duke University Medical Center, Box 3156, 177 MSRB1, Research Drive, Durham, NC 27710, USA, Tel.: 1-919-684-5018, Fax: 1-919-684-6458, <email>bigne001@mc.duke.edu</email>
</corresp>
</author-notes>
<pub-date pub-type="nihms-submitted"><day>30</day>
<month>9</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub"><day>23</day>
<month>11</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="ppub"><day>15</day>
<month>5</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>15</day>
<month>5</month>
<year>2014</year>
</pub-date>
<volume>132</volume>
<issue>10</issue>
<elocation-id>10.1002/ijc.27919</elocation-id>
<abstract><p id="P1">Current study demonstrates the glioma tumor antigen podoplanin to be present at very high levels (>90%) in both glioblastoma (D2159MG, D08-0308MG, and D08-0493MG) and medulloblastoma (D283MED, D425MED, and DAOY) xenografts and cell line. We constructed a novel recombinant single-chain antibody variable region fragment (scFv), NZ-1, specific for podoplanin from the NZ-1 hybridoma. NZ-1-scFv was then fused to <italic>Pseudomonas</italic>
exotoxin A, carrying a C-terminal KDEL peptide (NZ-1-PE38KDEL). The immunotoxin was further stabilized by a disulfide (ds) bond between the heavy-chain and light-chain variable regions as the construct NZ-1-(scdsFv)-PE38KDEL. NZ-1-(scdsFv)-PE38KDEL exhibited significant reactivity to glioblastoma and medulloblastoma cells. The affinity of NZ-1-(scdsFv), NZ-1-(scdsFv)-PE38KDEL and NZ-1 antibody, for podoplanin peptide was 2.1×10<sup>−8</sup>
M, 8.0×10<sup>−8</sup>
M, and 3.9×10<sup>−10</sup>
M, respectively. In a protein stability assay, NZ-1-(scdsFv)-PE38KDEL retained 33-98% of its activity while that of NZ-1-PE38KDEL declined to 13% of its initial levels after incubation at 37°C for 3 days. <italic>In vitro</italic>
cytotoxicity of the NZ-1-(scdsFv)-PE38KDEL was measured in cells isolated from glioblastoma xenografts, D2159MG, D08-0308MG, D08-0493MG, and in the medulloblastoma D283MED, D425MED, and DOAY xenografts and cell line. The NZ-1-(scdsFv)-PE38KDEL immunotoxin was highly cytotoxic, with an IC<sub>50</sub>
in the range of 1.6–29 ng/mL. Significantly, NZ-1-(scdsFv)-PE38KDEL demonstrated tumor-growth delay, averaging 24 days (<italic>P</italic>
<0.001) and 21 days (<italic>P</italic>
<0.001) in D2159MG and D283MED <italic>in vivo</italic>
tumor models, respectively. Crucially, in the D425MED intracranial tumor model, NZ-1-(scdsFv)-PE38KDEL caused a 41% increase in survival (<italic>P</italic>
≤0.001). In preclinical studies, NZ-1-(scdsFv)-PE38KDEL exhibited significant potential as a targeting agent for malignant brain tumors.</p>
</abstract>
<kwd-group><kwd>podoplanin</kwd>
<kwd>glioblastoma multiforme</kwd>
<kwd>medulloblastoma</kwd>
<kwd>recombinant immunotoxin</kwd>
<kwd>single-chain disulfide Fv</kwd>
</kwd-group>
<funding-group><award-group><funding-source country="United States">National Cancer Institute : NCI</funding-source>
<award-id>R37 CA011898 || CA</award-id>
</award-group>
<award-group><funding-source country="United States">National Institute of Neurological Disorders and Stroke : NINDS</funding-source>
<award-id>P50 NS020023 || NS</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
</pmc>
</record>
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