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We are analyzing https://link.springer.com/article/10.1007/s002620000115.

Title:
Single-chain antibodies against human insulin-like growth factor I receptor: expression, purification, and effect on tumor growth | Cancer Immunology, Immunotherapy
Description:
Insulin-like growth factors (IGF) I and II are potent mitogens for a variety of cancer cells. The proliferative and anti-apoptotic actions of IGF are mediated by the IGF-I receptor (IGF-IR), to which both IGF-I and IGF-II bind with high affinity. To investigate the mitogenic and anti-apoptotic activities of IGF-IR and to achieve better inhibition of IGF-IR function, single-chain antibodies against human IGF-IR (αIGF-IR scFvs) were constructed and expressed. IgG cDNA encoding variable regions of light and heavy chains (VL and VH) from mouse IgG were cloned from a hybridoma producing the 1H7 αIGF-IR monoclonal antibody [Li et al., Biochem Biophys Res Commun 196: 92–98 (1993)]. The splice-overlap extension polymerase chain reaction was used to assemble a gene encoding the αIGF-IR scFv, including the N-terminal signal peptide, VL, linker peptide, VH, and C-terminal DYKD tag. Two types of soluble αIGF-IR scFvs, a prototype αIGF-IR scFv and its alternative type αIGF-IR scFv-Fc, were constructed and expressed in murine myeloma cells. αIGF-IR scFv-Fc, containing the human IgG1 Fc domain, was stably expressed in NS0 myeloma cells, using a glutamine synthase selection system, and purified from the conditioned medium of stable clones by protein-A–agarose chromatography. Levels of αIGF-IR scFv-Fc expression ranged from 40 mg/l to 100 mg/l conditioned medium. Sodium dodecyl sulfate/polyacrylamide gel electrophoresis analysis under reducing and nonreducing conditions indicated that αIGF-IR scFv-Fc is a dimeric antibody. αIGF-IR scFv-Fc retained general characteristics of the parental 1H7 monoclonal antibody except that its binding affinity for IGF-IR was estimated to be approximately 108 M−1, which was one-order of magnitude lower than that of 1H7 monoclonal antibody. Injection of αIGF-IR scFv-Fc (500 μg/mouse, twice a week) significantly suppressed MCF-7 tumor growth in athymic mice. These results suggest that the αIGF-IR scFv-Fc is a first-generation recombinant αIGF-IR for the potential development of future αIGF-IR therapeutics.
Website Age:
28 years and 1 months (reg. 1997-05-29).

Matching Content Categories {📚}

  • Science
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Content Management System {📝}

What CMS is link.springer.com built with?

Custom-built

No common CMS systems were detected on Link.springer.com, and no known web development framework was identified.

Traffic Estimate {📈}

What is the average monthly size of link.springer.com audience?

🌠 Phenomenal Traffic: 5M - 10M visitors per month


Based on our best estimate, this website will receive around 7,604,274 visitors per month in the current month.

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How Does Link.springer.com Make Money? {💸}

We can't see how the site brings in money.

Not all websites focus on profit; some are designed to educate, connect people, or share useful tools. People create websites for numerous reasons. And this could be one such example. Link.springer.com could be getting rich in stealth mode, or the way it's monetizing isn't detectable.

Keywords {🔍}

αigfir, article, antibody, growth, scfvfc, access, privacy, cookies, content, cancer, singlechain, receptor, igfir, information, publish, research, search, antibodies, human, insulinlike, factor, tumor, igf, cells, monoclonal, data, log, journal, expression, purification, liang, guo, expressed, igg, scfv, peptide, open, discover, springer, function, optional, analysis, personal, including, parties, policy, find, track, immunology, immunotherapy,

Topics {✒️}

single-chain variable fragment generation recombinant αigf-ir 1h7 monoclonal antibody αigf-ir scfv-fc prototype αigf-ir scfv future αigf-ir therapeutics month download article/chapter single-chain antibodies c-terminal dykd tag soluble αigf-ir scfvs n-terminal signal peptide article cancer immunology αigf-ir scfv shu-lian li αigf-ir scfvs privacy choices/manage cookies beckman research institute full article pdf related subjects tumor growth anti-apoptotic actions anti-apoptotic activities murine myeloma cells ns0 myeloma cells specific anti-insulin dimeric antibody human igf-ir shu-jian liang european economic area igf-ir function cancer cells check access instant access article li conditions privacy policy accepting optional cookies usa e-mail igf-ii bind igf-1 receptor produces growth factor journal finder publish inhibition article log igf-ir usage analysis growth factors article cite privacy policy personal data immunotherapy aims

Schema {🗺️}

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         headline:Single-chain antibodies against human insulin-like growth factor I receptor: expression, purification, and effect on tumor growth
         description: Insulin-like growth factors (IGF) I and II are potent mitogens for a variety of cancer cells. The proliferative and anti-apoptotic actions of IGF are mediated by the IGF-I receptor (IGF-IR), to which both IGF-I and IGF-II bind with high affinity. To investigate the mitogenic and anti-apoptotic activities of IGF-IR and to achieve better inhibition of IGF-IR function, single-chain antibodies against human IGF-IR (αIGF-IR scFvs) were constructed and expressed. IgG cDNA encoding variable regions of light and heavy chains (VL and VH) from mouse IgG were cloned from a hybridoma producing the 1H7 αIGF-IR monoclonal antibody [Li et al., Biochem Biophys Res Commun 196: 92–98 (1993)]. The splice-overlap extension polymerase chain reaction was used to assemble a gene encoding the αIGF-IR scFv, including the N-terminal signal peptide, VL, linker peptide, VH, and C-terminal DYKD tag. Two types of soluble αIGF-IR scFvs, a prototype αIGF-IR scFv and its alternative type αIGF-IR scFv-Fc, were constructed and expressed in murine myeloma cells. αIGF-IR scFv-Fc, containing the human IgG1 Fc domain, was stably expressed in NS0 myeloma cells, using a glutamine synthase selection system, and purified from the conditioned medium of stable clones by protein-A–agarose chromatography. Levels of αIGF-IR scFv-Fc expression ranged from 40 mg/l to 100 mg/l conditioned medium. Sodium dodecyl sulfate/polyacrylamide gel electrophoresis analysis under reducing and nonreducing conditions indicated that αIGF-IR scFv-Fc is a dimeric antibody. αIGF-IR scFv-Fc retained general characteristics of the parental 1H7 monoclonal antibody except that its binding affinity for IGF-IR was estimated to be approximately 108 M−1, which was one-order of magnitude lower than that of 1H7 monoclonal antibody. Injection of αIGF-IR scFv-Fc (500 μg/mouse, twice a week) significantly suppressed MCF-7 tumor growth in athymic mice. These results suggest that the αIGF-IR scFv-Fc is a first-generation recombinant αIGF-IR for the potential development of future αIGF-IR therapeutics.
         datePublished:
         dateModified:
         pageStart:243
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            Key words IGF
            Recombinant antibody
            Single-chain antibody
            Tumor growth inhibition
            Oncology
            Immunology
            Cancer Research
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      headline:Single-chain antibodies against human insulin-like growth factor I receptor: expression, purification, and effect on tumor growth
      description: Insulin-like growth factors (IGF) I and II are potent mitogens for a variety of cancer cells. The proliferative and anti-apoptotic actions of IGF are mediated by the IGF-I receptor (IGF-IR), to which both IGF-I and IGF-II bind with high affinity. To investigate the mitogenic and anti-apoptotic activities of IGF-IR and to achieve better inhibition of IGF-IR function, single-chain antibodies against human IGF-IR (αIGF-IR scFvs) were constructed and expressed. IgG cDNA encoding variable regions of light and heavy chains (VL and VH) from mouse IgG were cloned from a hybridoma producing the 1H7 αIGF-IR monoclonal antibody [Li et al., Biochem Biophys Res Commun 196: 92–98 (1993)]. The splice-overlap extension polymerase chain reaction was used to assemble a gene encoding the αIGF-IR scFv, including the N-terminal signal peptide, VL, linker peptide, VH, and C-terminal DYKD tag. Two types of soluble αIGF-IR scFvs, a prototype αIGF-IR scFv and its alternative type αIGF-IR scFv-Fc, were constructed and expressed in murine myeloma cells. αIGF-IR scFv-Fc, containing the human IgG1 Fc domain, was stably expressed in NS0 myeloma cells, using a glutamine synthase selection system, and purified from the conditioned medium of stable clones by protein-A–agarose chromatography. Levels of αIGF-IR scFv-Fc expression ranged from 40 mg/l to 100 mg/l conditioned medium. Sodium dodecyl sulfate/polyacrylamide gel electrophoresis analysis under reducing and nonreducing conditions indicated that αIGF-IR scFv-Fc is a dimeric antibody. αIGF-IR scFv-Fc retained general characteristics of the parental 1H7 monoclonal antibody except that its binding affinity for IGF-IR was estimated to be approximately 108 M−1, which was one-order of magnitude lower than that of 1H7 monoclonal antibody. Injection of αIGF-IR scFv-Fc (500 μg/mouse, twice a week) significantly suppressed MCF-7 tumor growth in athymic mice. These results suggest that the αIGF-IR scFv-Fc is a first-generation recombinant αIGF-IR for the potential development of future αIGF-IR therapeutics.
      datePublished:
      dateModified:
      pageStart:243
      pageEnd:252
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         Key words IGF
         Recombinant antibody
         Single-chain antibody
         Tumor growth inhibition
         Oncology
         Immunology
         Cancer Research
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                     name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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                     name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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                  name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280
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                     name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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                     name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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                     name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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      address:
         name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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            address:
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            address:
               name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
               type:PostalAddress
            type:Organization
      name:Ning Guo
      affiliation:
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            address:
               name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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      name:Anna M. Wu
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            name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280
            address:
               name:Department of Molecular Biology, Beckman Research Institute of the City of Hope, 1450 East Duarte Road, Duarte, CA 91010, USA e-mail: [email protected] Tel.: +1-626-301-8247 Fax: +1-626-301-8280, , US
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            address:
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