Bromodeoxyuridine Dependence--A New Mutation in Mammalian Cells
نویسندگان
چکیده
منابع مشابه
Mutation systems in cultured mammalian cells.
Experimental studies on the complex process of mutagenesis are conducted in the belief that they will increase our understanding of the effects of environmental agents on human populations. Cultured mammalian cells offer distinct advantages over other biological systems for studying this problem. Mutagenesis in cultured mammalian cells is unquestionably more relevant to man than are bacterial, ...
متن کاملDNA base sequence changes and sequence specificity of bromodeoxyuridine-induced mutations in mammalian cells.
By using a shuttle vector system developed in our laboratory, we have carried out studies on the molecular mechanism by which 5-bromodeoxyuridine (BrdUrd) induces mutations in mammalian cells. The target for mutagenesis in these studies was the Escherichia coli gpt gene that was contained within a retroviral shuttle vector and integrated into chromosomal DNA in mouse A9 cells. Shuttle vector-tr...
متن کاملReversible "transformation" of bromodeoxyuridine-dependent cells by bromodeoxyuridine.
The growth characteristics of a bromodeoxyuridine-dependent cell line that was derived from a non-contact-inhibited Syrian hamster melanoma line were studied. The dependent cells require high concentrations of bromodeoxyuridine not only for optimal growth but also for the maintenance of the non-contact-inhibited state. When grown in the absence of bromodeoxyuridine, the dependent cells become c...
متن کاملEffects of praziquantel, a new antischistosomal drug, on the mutation and transformation of mammalian cells.
Praziquantel (PQ), a tetrahydroquinoline derivative, is a new and clinically effective antischistosomal drug, which has been shown to lack or to possess very weak mutagenic activity. However, in bacteria, this compound can act as a weak comutagen that increases the mutagenicity of several chemical mutagens and carcinogens. We have found that PQ can act as a very weak comutagen in animal cells. ...
متن کاملVoltage Dependence of ATP Secretion in Mammalian Taste Cells
Mammalian type II taste cells release the afferent neurotransmitter adenosine triphosphate (ATP) through ATP-permeable ion channels, most likely to be connexin (Cx) and/or pannexin hemichannels. Here, we show that ion channels responsible for voltage-gated (VG) outward currents in type II cells are ATP permeable and demonstrate a strong correlation between the magnitude of the VG current and th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1973
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.70.1.138