Enhancement of cytogenetic damage by inhibitors of poly(ADP-ribose)polymerase in human lymphocytes exposed to antineoplastics in vivo and in vitro

 
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Enhancement of cytogenetic damage by inhibitors of poly(ADP-ribose)polymerase in human lymphocytes exposed to antineoplastics in vivo and in vitro

Mourelatos, Dionysios
Koliouskas, Dimitrios
Dozi-Vassiliades, J.
Chatzitheodoridou, Pinelopi
Kourakis, Anastasios

The effect of benzamide (B) and 3-aminobenzamide (3-AB) on sister chromatid exchanges (SCEs) and cell kinetics induced in vitro by melphalan (MELPH) or thiotepa (THIO) was studied in normal human lymphocytes. The combined treatments with either MELPH or THIO plus B or 3-AB showed the potentiating ability on SCE rates and the ability to induce cell division delays of the latter chemicals. In a combined in vivo and in vitro study, lymphocytes taken from six cancer patients who had been given cytoxan by injection 2 hr before and then treated with theophylline (THEOPH) or B or 3-AB in vitro were found to have synergistically increased exchange rates and cell division delays. The frequency of SCEs in the patients own lymphocytes with and without exposure to inhibitor of Poly(ADP-ribose) polymerase (P(ADPR)polymerase) was determined before the cytostatic therapy and was used as a control for later comparison in each individual case. These results further substantiate the use of this approach for detecting the induction of cytogenetic damage concerning controlled mutagen human exposure in combined in vivo and in vitro studies. Chemically induced cytotoxicity manifested as an alteration (division delay) in cell kinetics and as synergistic DNA damage by cytostatics and inhibitors of P(ADPR)polymerase may be of use in the treatment of human cancer

Article / Άρθρο
info:eu-repo/semantics/article

Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (EL)
Aristotle University of Thessaloniki (EN)

Αγγλική γλώσσα

1986
2009-07-17T10:36:00Z


Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Επιστημών Υγείας, Τμήμα Ιατρικής

urn:ISSN:02703211
Teratogenesis Carcinogenesis and Mutagenesis, vol.6 [1986] p.485-492 [Published Version]

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