title: Anticancer effect of PMEDAP--monitoring of apoptosis.
abstract: Antitumor effect of N-9-[2-(phosphonomethoxy) ethyl]-2,6-diaminopurine (PMEDAP) was studied in an in vivo model of s.c. transplanted Sprague-Dawley (SD/cub) rat T-cell lymphomas. Three individual SD/cub neoplasias (SD10/96, SD14/97, SD1/90) of different phenotypes were used. During the treatment, survival of the rats, increase of lymphoma mass, and DNA fragmentation detected by APO/BRDU kit, as well as Bcl2 and p53 protein expression, were followed. The study gives evidence of the positive therapeutic effect of PMEDAP in two of the three tested lymphomas, SD10/96 and SD14/97. Slowly growing SD1/90 lymphoma differs from the others in a uniform karyotype with trisomy of chromosome 11, CD4- immunophenotype, heterogeneous cellular morphology and constitutive expression of p53 protein found in some neoplastic cells. Thus, the diverse anticancer efficacy of PMEDAP treatment among SD/cub lymphomas could be associated with the different phenotypes of individual neoplasias.
authors.affiliation: Institute of Biology, 1st Medical Faculty, Charles University, Prague, Czech Republic.
authors.forename: K
authors.initials: K
authors.lastname: Bobková
authors.forename: B
authors.initials: B
authors.lastname: Otová
authors.forename: I
authors.initials: I
authors.lastname: Marinov
authors.forename: V
authors.initials: V
authors.lastname: Mandys
authors.forename: A
authors.initials: A
authors.lastname: Panczak
authors.forename: I
authors.initials: I
authors.lastname: Votruba
authors.forename: A
authors.initials: A
authors.lastname: Holý
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D017209:Apoptosis / Q000187:drug effects*; D002874:Chromosome Mapping; D007150:Immunohistochemistry; D020287:In Situ Nick-End Labeling; D007621:Karyotyping; D016399:Lymphoma, T-Cell / Q000188:drug therapy* / Q000235:genetics / Q000473:pathology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000032:analysis; D051381:Rats; D017207:Rats, Sprague-Dawley; D014314:Trisomy; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D000970:Antineoplastic Agents; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53; C059499:9-(2-phosphonylmethoxyethyl)-2,6-diaminopurine; D000225:Adenine