A comparative study on cytogenetic and antineoplastic effects induced by two modified steroidal alkylating agents.
We investigated the effects of two newly synthesized steroidal derivatives of nitrogen mustard on sister chromatid exchange rates and on human lymphocyte proliferation kinetics. The compound 33-hydroxy-5alpha,22alpha-spirostan- 12-one-p-(N,N-bis(2-chloroethyl)amino)phenylacetate(1) was, on a molar basis, less effective in inducing sister chromatid exchange and suppressing cell proliferation rate indices than compound 3beta-hydroxy-12alpha-aza-C-homo-5alpha,22alpha-spirostan-12-one-p-(N,N-bis(2-chloroethyl)amino)phenylacetate(2). A correlation was observed between the magnitude of the sister chromatid exchange response and the depression of cell proliferation index. We also studied the effects of the aforementioned compounds on Lewis lung carcinoma. The order of the percent inhibition of tumor growth achieved by the compounds coincides with the order of the cytogenetic effects they induce.
Papageorgiou
A
A
Laboratory of Experimental Chemotherapy, Theagenion Anticancer Institute, Thessaloniki, Greece.
Tsavdaridis
D
D
Geromichalos
G D
GD
Camoutsis
C
C
Karaberis
E
E
Mourelatos
D
D
Chrysogelou
E
E
Houvartas
S
S
Kotsis
A
A
D000818:Animals; D018906:Antineoplastic Agents, Alkylating / Q000737:chemistry / Q000627:therapeutic use*; D018827:Carcinoma, Lewis Lung / Q000188:drug therapy* / Q000517:prevention & control; D004354:Drug Screening Assays, Antitumor; D005260:Female; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D009588:Nitrogen Mustard Compounds / Q000737:chemistry / Q000627:therapeutic use*; D012854:Sister Chromatid Exchange
D018906:Antineoplastic Agents, Alkylating; D009588:Nitrogen Mustard Compounds