Establishment of human acute myelogenous leukemia lines secreting interleukin-1β in SCID mice

R. Giavazzi, C. Di Berardino, A. Garofalo, T. Motta, A. Gobbi, E. Scanziani, G. Giudici, M. Galli, J. G. Mayo, T. Barbui, A. Biondi, A. Rambaldi

Research output: Contribution to journalArticle

Abstract

A reproducible in vivo model of human acute myelogeneous leukemia (AML) was established in severe combined immunodeficient (SCID) mice. The AML-CL and AML-PS lines were originated from leukemic blasts purified respectively from the peripheral blood of a 27-year-old woman with previously untreated hyperleukocytotic AML and from the bone marrow of a 61-year-old man during the third leukemic relapse. The 2 lines were maintained and serially transplanted i.p. in SCID mice. AML-PS and AML-CL produced ascitogenous gross tumors after approximately 4 and 6 weeks, respectively, and all mice died within 6-8 weeks. Microscopic evaluation of different organs at autopsy showed massive involvement of bone marrow, liver and spleen, though with differences in the tumor burdens for the 2 lines (AML-CL > AML-PS). Flow cytometric analysis documented the spread of leukemic cells to bone marrow, peripheral blood and spleen. AML-PS and AML-CL cells show an immunophenotypic profile (CD13+, CD33+) and cytogenetic findings similar to freshly isolated blasts. Interleukin-1β (IL-1β) gene expression was observed by Northern blot analysis in leukemic cells from AML-CL and AML-PS SCID mice. After 24 hr of culture both lines released IL-1β in culture supernatants. High levels of circulating IL-1β were secreted in plasma of tumor-bearing mice. This AML-SCID murine model could contribute to an understanding of the mechanisms of AML growth in vivo and the possible role of the autocrine production of IL-1β in promoting cell growth.

Original languageEnglish
Pages (from-to)280-285
Number of pages6
JournalInternational Journal of Cancer
Volume61
Issue number2
DOIs
Publication statusPublished - 1995

    Fingerprint

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Giavazzi, R., Di Berardino, C., Garofalo, A., Motta, T., Gobbi, A., Scanziani, E., Giudici, G., Galli, M., Mayo, J. G., Barbui, T., Biondi, A., & Rambaldi, A. (1995). Establishment of human acute myelogenous leukemia lines secreting interleukin-1β in SCID mice. International Journal of Cancer, 61(2), 280-285. https://doi.org/10.1002/ijc.2910610223