Biomaterial Database

Co-reversion of a lectin-resistant mutation and non-metastatic phenotype in murine tumor cells. 1986

J W Dennis, and S Laferte

Three independent isolates, one obtained spontaneously and the others obtained after in vitro mutagenesis, of a WGA-resistant mutation were compared to the highly metastatic parental murine cell line MDAY-D2 for alterations in plasma membrane glycoproteins and changes in metastatic behavior. The mutants were non-metastatic from an s.c. site of injection and poor organ-colonizers when administered i.v. Each of the mutant lines had the same lesion in N-linked oligosaccharide structure, which rendered the cells hypersensitive to the N-acetylglucosamine-binding lectin BSII in vitro. The phenotypic similarities between the 3 WGA-resistant isolates indicated that the mutation was directly related to the attenuated malignant phenotype. Direct confirmation was obtained by the isolation of a BSII-resistant clone of the mutant cells that co-reverted for lectin-sensitivity, lectin binding glycoproteins and malignant aggressiveness. The results indicate a direct relationship between malignant behavior and cell-surface oligosaccharide structure.

UI	MeSH Term	Description	Entries
D008811	Mice, Inbred DBA	An inbred strain of mouse. Specific substrains are used in a variety of areas of BIOMEDICAL RESEARCH such as DBA/1J, which is used as a model for RHEUMATOID ARTHRITIS.	Mice, DBA,Mouse, DBA,Mouse, Inbred DBA,DBA Mice,DBA Mice, Inbred,DBA Mouse,DBA Mouse, Inbred,Inbred DBA Mice,Inbred DBA Mouse
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D009374	Neoplasms, Experimental	Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.	Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
D004351	Drug Resistance	Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration.	Resistance, Drug
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D037102	Lectins	Proteins that share the common characteristic of binding to carbohydrates. Some ANTIBODIES and carbohydrate-metabolizing proteins (ENZYMES) also bind to carbohydrates, however they are not considered lectins. PLANT LECTINS are carbohydrate-binding proteins that have been primarily identified by their hemagglutinating activity (HEMAGGLUTININS). However, a variety of lectins occur in animal species where they serve diverse array of functions through specific carbohydrate recognition.	Animal Lectin,Animal Lectins,Isolectins,Lectin,Isolectin,Lectin, Animal,Lectins, Animal