منابع مشابه
Experimental Production of Testicular Teratomas in Mice.
6Madsen (private communication) found that Mg ions lower the Km for 5'-AMP without affecting the Van. Owing to this effect, the inhibition by ATP is markedly diminished in the presence of this metal ion. Similarly, the effect of 5'-AMP on the interaction of phosphorylase with its substrates could be modified by the presence of Mg ions and result in different numerical values for kinetic paramet...
متن کاملClonal origin of metastatic testicular teratomas.
PURPOSE Testicular teratomas in adult patients are histologically diverse tumors that frequently coexist with other germ cell tumor (GCT) components. These mixed GCTs often metastasize to retroperitoneal lymph nodes where multiple GCT elements are frequently present in the same metastatic lesion. Neither the genetic relationships among the different components in metastatic lesions nor the rela...
متن کاملExperimental induction of testicular teratomas in dissociated-reaggregated chimaeric gonads.
Testicular teratomas can be experimentally induced in some strains of mice by grafting 12.5-day male genital ridges to the testes of adults. The grafts develop into testes and most of them have teratomas. The cells of 12.5-day foetal gonads were dissociated and the germ cells and somatic cells were separated. When germ cells were reaggregated with somatic cells and implanted in adult testes, th...
متن کاملTeratomas.
Teratomas are embryonal tumors that normally arise from germ cells [3] and are typically benign. They are defined as being composed either of tissues that are foreign to the area in which they form, or of tissues that derive from all three of the germ layers [4]. Malignant teratomas are known as teratocarcinomas; these cancerous growths have played a pivotal role in the discovery of stem cells ...
متن کاملShadow cell differentiation in testicular teratomas. A report of two cases.
Two cases of adult testicular teratoma with shadow cell differentiation (SCD) similar to that seen commonly in pilomatrixoma are presented. The patients aged 21 and 27 years, and both tumors were limited to the testis. The differentiation of squamous epithelium toward shadow cells is well known in cutaneous pilomatrixoma and related lesions, some odontogenic tumors, craniopharyngeoma, and it wa...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 1963
ISSN: 0007-0920,1532-1827
DOI: 10.1038/bjc.1963.6