Butler M (1985) Growth limitations in high density micro-carrier cultures. Develop. Biol. Standard. 60: 269–280.
Google Scholar
Butler M, Imamura T, Thomas J and Thilly WG (1983) High yields from microcarrier cultures by medium perfusion. J. Cell Sci. 61: 351–363.
Google Scholar
Eagle H, Washington CL, Ievy M and Cohen L (1966) The Population-dependent Requirement by Cultured Mammalian Cells for Metabolites Which They Can Synthesize. II. Glutamic acid and Glutamine; Aspartic acid and Asparagine. J. Biol. Chem. 241: 4994–4999.
Google Scholar
Hayward BE, Hussain A, Wilson RH, Lyons A, Woodcock V, McIntosh B and Harris TJR (1986) The cloning and nucleotide sequence of cDNA for an amplified glutamine synthetase gene from the Chinese hamster. Nucleic Acid Res. 14: 999–1008.
Google Scholar
Hossell TE, Allen JC, Rowley AJ and Butler M (in press) The use of glutamine-free media for the growth of three cell lines in microcarrier. Develop. Biol. Standard.
Iio M (1985) Influence of metabolites produced by cultured cell on cell proliferation in serum-free conditions. The Tissue Culture 11: 432–435.
Google Scholar
Kovacevic Z (1971) The pathway of glutamine and glutamate oxidation in isolated mitochondria from mammalian cells. Biochem. J. 125: 757.
Google Scholar
Kovacevic Z and Morris HP (1972) The role of glutamine in the oxidative metabolism of malignant cells. Cancer Res. 32: 326.
Google Scholar
Kun E and Kearney EB (1981) Protein Metabolism: Ammonia. In: Bergmeyer HU (ed) Methods of Enzymatic Analysis (pp. 802–1806). Verlag Chemie International, Deerfield Beach, Florida.
Google Scholar
Levintow L, Eagle H and Piez KA (1957a) The Role of Glutamine in Protein Biosynthesis in Tissue culture. J. Biol. Chem. 227: 929–941.
Google Scholar
Lavietes BB, Regan DH and Demopoulos HB (1974) Glutamate oxidation of 6C3HED lymphoma: Effects of Lasparaginase on sensitive and resistant line. Proc. Natl. Acad. Sci. USA 71: 3993.
Google Scholar
Levintow L (1957b) Evidence that glutamine is a precursor of asparagine in a human cell tissue culture. Science 126: 611–612.
Google Scholar
Morris JE and Moscona AA (1970) Induction of glutamine synthetase in embryonic retina: its dependence on cell interactions. Science 167: 1736–1738.
Google Scholar
Nagle SCJr (1968) Heat-stable chemically detined medium for growth of animal cell in suspension. Appl. Microbiol. 16: 53–55.
Google Scholar
Niwa A, Fujiyoshi N, Yasumura Y and Mizuno H (1982) Establishment of a cell line from normal rat liver which grows continuously in protein-free chemically defined medium supplemented with no hormones or growth factors. Dokkyo J. Med. Sci. 9: 97–105.
Google Scholar
Odland L, Wallin S and Walum E (1986) Lipid peroxidation and activities of tyrosine aminotransferase and glutamine synthetase in hepatoma and glioma cells grown in bovine colostrum-supplemented medium.In Vitro cellular and Develop. Biol. 22: 259–262.
Google Scholar
Raivio KO and Seegmiller JE (1973) Adenine, hypoxanthine, and guanine metabolism in fibroblasts from normal individuals and from patients with hypoxanthine phosphori-bosyltransferase deficiency. Biochem. Biophys, Acta 299: 273–282.
Google Scholar
Reizer LJ, Wice BM and Kennell D (1979) Evidence that glutamine, not sugar, is the major energy source for culture HeLa cells. J. Biol. Chem. 254: 2669–2676.
Google Scholar
Sanders PG and Wilson RH (1984) Amplification and cloning of the Chinese hamster glutamine synthetase gene. EMBO J. 3: 65–71.
Google Scholar
Sato S, Kawamura K and Fujiyoshi N (1983) Animal cell cultivation for production of Biological substances with a novel perfusion culture apparatus. J. Tissue Culture Methods 8: 167–171.
Google Scholar
Thorndike J and Rief-Lehrer L (1971) A Sensitive Assay for Glutamultransferase. Enzyme 12: 235–241.
Google Scholar
Yamane I and Arakawa K. Japanese Patent S. 47–670 (1972.1.10).