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  • Daskalakis, KosmasUppsala universitet,Endokrinkirurgi (författare)

Ex vivo activity of cytotoxic drugs and targeted agents in small intestinal neuroendocrine tumors

  • Artikel/kapitelEngelska2018

Förlag, utgivningsår, omfång ...

  • 2018
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-354255
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354255URI
  • https://doi.org/10.1530/ERC-17-0404DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Small intestinal neuroendocrine tumors (SI-NETs) are generally considered resistant to systemic treatment. To date, predictive markers for drug activity are lacking. Tumor samples from 27 patients with SI-NETs were analyzed ex vivo for sensitivity to a panel of cytotoxic drugs and targeted agents using a short-term total cell kill assay. Samples of renal cancer, colorectal cancer (CRC), ovarian cancer and chronic lymphocytic leukemia (CLL) were included for comparison. For the SI-NET subset, drug sensitivity was analyzed in relation to clinicopathological variables and pre-treatment biomarkers. For cytotoxic drugs, SI-NETs demonstrated similar or higher sensitivity to 5-FU, platinum, gemcitabine and doxorubicin compared with CRC. For several of the targeted kinase inhibitors, SI-NET was among the most sensitive solid tumor types. CLL and ovarian cancer were generally the most sensitive tumor types to both cytotoxic drugs and protein kinase inhibitors. SI-NET was more sensitive to the mTOR inhibitor sirolimus than the other solid tumor types tested. Individual SI-NET samples demonstrated great variability in ex vivo sensitivity for most drugs. Cross-resistance between different drugs also varied considerably, being higher among protein kinase inhibitors. Age, stage, grade, peritoneal carcinomatosis and extra-abdominal metastases as well as serum chromogranin A and urine 5-HIAA concentrations at diagnosis did not correlate to drug sensitivity ex vivo. SI-NETs exhibit intermediate sensitivity ex vivo to cytotoxic and targeted drugs. Clinicopathological factors and currently used biomarkers are not clearly associated to ex vivo sensitivity, challenging these criteria for treatment decisions in SI-NET. The great variability in drug sensitivity calls for individualized selection of therapy.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Norlén, OlovUppsala universitet,Endokrinkirurgi(Swepub:uu)olono376 (författare)
  • Karakatsanis, AndreasUppsala universitet,Endokrinkirurgi(Swepub:uu)andka774 (författare)
  • Hellman, PerUppsala universitet,Endokrinkirurgi(Swepub:uu)perhellm (författare)
  • Larsson, RolfUppsala universitet,Cancerfarmakologi och beräkningsmedicin(Swepub:uu)rolflars (författare)
  • Nygren, PeterUppsala universitet,Experimentell och klinisk onkologi(Swepub:uu)peterng (författare)
  • Stålberg, PeterUppsala universitet,Endokrinkirurgi(Swepub:uu)petestah (författare)
  • Uppsala universitetEndokrinkirurgi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Endocrine-Related Cancer25:4, s. 471-4801351-00881479-6821

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