Molecular basis of the little mouse phenotype and implications for cell type-specific growth

Autor: Paul E. Sawchenko, Michael G. Rosenfeld, Sheng-Cai Lin, Aldons J. Lusis, Ilya Gukovsky, Chijen R. Lin
Rok vydání: 1993
Předmět:
Genetically modified mouse
Male
Receptors
Neuropeptide

medicine.medical_specialty
Pituitary gland
Somatotropic cell
medicine.medical_treatment
Cellular differentiation
DNA Mutational Analysis
Molecular Sequence Data
Biology
Growth Hormone-Releasing Hormone
Mice
Anterior pituitary
Receptors
Pituitary Hormone-Regulating Hormone

Pituitary Gland
Anterior

Internal medicine
medicine
Animals
Amino Acid Sequence
Dwarfism
Pituitary

Promoter Regions
Genetic

Multidisciplinary
Binding Sites
Base Sequence
Cell growth
Growth factor
Chromosome Mapping
Cell Differentiation
Phenotype
Mice
Mutant Strains

Cell biology
Receptors
Neurotransmitter

DNA-Binding Proteins
Mice
Inbred C57BL

medicine.anatomical_structure
Endocrinology
Oligodeoxyribonucleotides
Mutation
Female
Transcription Factor Pit-1
Cell Division
Signal Transduction
Transcription Factors
Zdroj: Nature. 364(6434)
ISSN: 0028-0836
Popis: The molecular basis for the little (lit) mouse phenotype, characterized by a hypoplastic anterior pituitary gland, is the mutation of a single nucleotide that alters Asp 60 to Gly in the growth hormone releasing factor receptor. Detailed analysis of the lit mouse anterior pituitary reveals spatially distinct proliferative zones of growth hormone-producing stem cells and mature somatotrophs, each regulated by a different trophic factor. This sequential growth factor requirement for a specific cell type may exemplify a common strategy for regulating cellular proliferation in other mammalian organs.
Databáze: OpenAIRE