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Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
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Published on: September 18, 2013

Preclinical evaluation of new anthracyclines

G Pratesi1, S V Monestiroli

  • 1Istituto Nazionale per lo Studio e la Cura dei Tumori, Milan, 20133, Italy. pratesi@istitutotumori.mi.it

Current Medicinal Chemistry
|February 15, 2001
PubMed

Insights

A novel screening system using human tumor models identified MEN 10755, a promising anthracycline analog. This new drug candidate shows potential efficacy and tolerability, advancing to Phase I clinical trials.

Area of Science:

  • Oncology
  • Pharmacology
  • Drug Discovery

Background:

  • Anthracyclines are crucial chemotherapy agents, but drug resistance and cardiotoxicity limit their use.
  • Developing novel anthracycline analogs with improved efficacy and safety profiles is essential.
  • Existing screening methods often lack direct relevance to human tumor biology.

Purpose of the Study:

  • To establish a screening system for novel anthracyclines based on human tumor material.
  • To evaluate the cytotoxicity, therapeutic efficacy, and tolerability of new anthracycline analogs.
  • To assess the predictive value of human tumor xenografts for clinical efficacy.

Main Methods:

  • Utilized a two-step screening system employing human tumor cell lines and xenografts.
  • Assessed relative cytotoxicity against doxorubicin in cell lines with characterized resistance factors and p53 status.
  • Evaluated therapeutic efficacy and tolerability in human tumor xenografts resistant to doxorubicin, including cardiotoxicity studies in mice.

Main Results:

  • A series of disaccharide anthracycline analogs were screened.
  • One analog, MEN 10755, demonstrated promising results and was selected for further development.
  • MEN 10755 is currently undergoing Phase I clinical trials.

Conclusions:

  • The developed screening system effectively identifies promising anthracycline analogs.
  • Human tumor xenografts serve as valuable models for predicting clinical efficacy of anthracyclines.
  • MEN 10755 represents a potential new therapeutic option for anthracycline-resistant cancers.

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