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Six established human sarcoma cell lines (giant cell tumor of bone B-5GT, fibrosarcoma, B-6FS, cystosarcoma phylloides B-19CS, synovial sarcoma U-4SS and two osteogenic sarcomas U-20S and U-393OS) have been studied and compared to the normal B-41FB fibroblastic cells and the HeLa cells. For
Glutathione (GSH) metabolism and protein synthesis were observed over a period of about two weeks in Yoshida ascites sarcoma and intracellular concentration relative to days 7, 10 and 13 assumed as 'markers' of different stages of tumor development. During this period the decrease in rate of cell
In addition to the previously described deoxyribonucleic acid (DNA) polymerase, DNA ligase, DNA exonuclease, and DNA endonuclease activities, purified virions of Schmidt-Ruppin strain of Rous sarcoma virus (SRV) have nucleotides and nucleotide kinase, phosphatase, hexokinase, and lactate
The ability to transfer permanently genes into mammalian cells makes retroviruses suitable vectors for the ultimate purpose of treating inherited genetic disease. However, expression of the retrovirally transferred genes is variable (position effect and expression variegation) because retroviruses
Amastigotes of Leishmania mexicana mexicana and of Leishmania donovani were grown in mouse peritoneal macrophages and dog sarcoma cells in culture. Polyacrylamide gel disc electrophoresis of amastigote-infected tissue cultures failed to detect parasite lactate dehydrogenase and malate dehydrogenase,
Five permanently established xenograft lines of human soft tissue sarcomas were irradiated with single doses of 5.8 MeV d(14)+Be neutrons and of 60Co rays, respectively, at several dose levels to generate dose response relationships. The tumors were clamped ten minutes prior to and during
Transgenic mice with both alleles of the p53 tumor suppressor gene product 'knocked out' by gene targeting are susceptible to early development of tumors, chiefly lymphomas and sarcomas. Compared with the control group, administration of dehydroepiandrosterone (DHEA) at 0.3% of the diet to male
The activity of a group of respiratory enzymes was studied in normal menopausal as well as benign and malignant tumours. A decrease in the activity of succinic dehydrogenase, diphosphopyridine nucleotide diaphorase and cytochrome oxidase in malignant tumours especially in spindle cell sarcoma and
DNA extracted from 25 hamster-sheep hybrid cell lines was subjected, after Southern blotting, to hybridization with CASB, CASK, LALBA, IGF-1 and AMH cDNA probes. CASB and CASK segregated together and IGF-1 and LALBA were found syntenic with the LDHB-PEPB-TPI-GAPD-SHMT-KRTB group. No other synteny
WI-38 normal human diploid fibroblasts were exposed to Co-60 gamma rays 4 times at a total dose of 1400 rads and transformed into neoplastic cells in culture. The transformed WI-38 cells which are growing steadily without showing aging phenomena at the present time showed epithelial-like morphology,
Nine human tumor cell lines (five breast carcinomas and four sarcomas) have been studied and each revealed groups of distinctive banded marker chromosomes which can serve to identify them and aid in monitoring cell line specificity. This was possible neither by conventional karyology in terms of
G mouse cells were resistant to N- and NB-tropic Friend leukemia viruses and to B-tropic WN 1802B. Though the cells were resistant to focus formation by the Moloney isolate of murine sarcoma virus, they were relatively sensitive to helper component murine leukemia virus. To amphotropic murine
Animal cloning through somatic cell nuclear transfer (NT) is very inefficient, probably due to insufficient reprogramming of the donor nuclei, which in turn would cause the dysregulation of gene expression. X-Chromosome inactivation (XCI) is a multi-step epigenetic process utilized by mammals to
One hundred and twenty-seven cultured human tumor cell lines produced tumors after sc inoculation of 1-20 million cells into nude mice. They included 56 carcinoma lines, 14 sarcoma lines, and 57 lines from miscellaneous tumors and were all glucose-6-phosphate dehydrogenase type B. Twenty-nine