1990
DOI: 10.1111/j.1365-2559.1990.tb01544.x
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Expression of insulin‐like growth factor 1 in sarcomas

Abstract: The expression of insulin‐like growth factor‐1 (IGF‐1) was studied in normal tissues, in eight benign lesions and in 50 sarcomas. In palmar fibromatosis the spindle cells in cell‐dense areas exhibited a strong immunoreactivity. IGF‐1 was variably found in leiomyosarcomas (7/8), malignant schwannomas (7/9), synovial sarcomas (2/3), liposarcomas (3/6), fibrosarcomas (1/3), malignant fibrous histiocytomas (10/18) and in one angiosarcoma. Two rhabdomyosarcomas failed to express IGF‐1 and only the spindle cell comp… Show more

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Cited by 22 publications
(5 citation statements)
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“…When phosphorylated, IGF-1R signaling can result in downstream activation of a number of potential oncogenes within the PI3K-Akt-mTOR as well as RAF-MAPK pathways. IGF-1R is overexpressed in many sarcoma histologies, and inhibition of IGF-IR has resulted in vitro in tumor apoptosis and growth inhibition and in vivo in tumor formation in mouse models of Ewing's sarcoma treated with IGF-1R antisense mRNA [2,[5][6][7][8]. Cixutumumab (IMC-A12) is a fully human IgG1/λ monoclonal antibody directed at the type I IGF-1R (ImClone Systems, Inc.).…”
mentioning
confidence: 99%
“…When phosphorylated, IGF-1R signaling can result in downstream activation of a number of potential oncogenes within the PI3K-Akt-mTOR as well as RAF-MAPK pathways. IGF-1R is overexpressed in many sarcoma histologies, and inhibition of IGF-IR has resulted in vitro in tumor apoptosis and growth inhibition and in vivo in tumor formation in mouse models of Ewing's sarcoma treated with IGF-1R antisense mRNA [2,[5][6][7][8]. Cixutumumab (IMC-A12) is a fully human IgG1/λ monoclonal antibody directed at the type I IGF-1R (ImClone Systems, Inc.).…”
mentioning
confidence: 99%
“…50 IGF-1R is overexpressed in many malignancies, including sarcoma, and inhibition of IGF-1R in vitro has resulted in tumor apoptosis and growth inhibition. [51][52][53] SARC completed enrollment to a multiinstitutional phase II study of R1507, a monoclonal antibody to IGF-1R, which included a cohort of patients with osteosarcoma. Preliminary results are still pending.…”
Section: Anti-insulin-like Growth Factor 1 Receptor Therapymentioning
confidence: 99%
“…Los datos obtenidos del análisis de expresión génica señalan a IGF1 como uno de los genes reprimidos más importantes cuando se inhibe la fusión por lo que y dada la gran importancia de la vía de proliferación y supervivencia IGF1/IGF1R en los sarcomas en general y en el SE (27,117,118,350,351) (31,274).…”
Section: Igf1-igf1runclassified
“…Importantes vías de señalización están activadas constitutivamente en los sarcomas como la de IGF1-IGF1R en rabdomiosarcomas, leiomiosarcomas y SE, la de PDGFR en osteosarcomas y tumores desmoplásicos de células redondas, SCF/c-KIT en GIST y SE o la vía del receptor de c-MET en el sarcoma sinovial y los rabdomiosarcomas (27,28,29,30). En la gran mayoría de ocasiones la activación de estas vías de señalización no se realiza de forma directa por parte de las proteínas de fusión pero en ciertos sarcomas sí se ha comprobado este hecho, como sucede por ejemplo en el fibrosarcoma congénito, en el que la translocación t(12,15)(p13;q25) fusiona el factor de transcripción ETV6 con la tirosina quinasa NTRK3 afectando a la vía de señalización de dicha proteín-quinasa (31).…”
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