Martin Fleischhacker

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The tumor suppressor gene p53 is the most frequently mutated gene in human cancer. We have used polymerase chain reaction-single-strand conformation polymorphism analysis and sequencing to examine the status of the p53 gene in human testicular cancers of various histologies. We were unable to find in 40 samples and four cell lines any mutations in the(More)
Leiomyoma is the most common benign smooth muscle tumor. Although rare in other organs, it is frequent in the uterus, occurring in nearly 40% of women over 50 years of age. These benign tumors rarely undergo malignant transformation. The incidence of leiomyosarcomas in uterine leiomyomas is estimated to be between 0.13 and 0.29%. Little is known of the(More)
DNA aneuploidy is common in colon carcinoma, colonic polyps, and ulcerative colitis. We found an interesting subset of patients with colon cancer. These individuals (14 of 230 cases, 6%) had hypodiploid aneuploidy in their morphologically normal-appearing colonic tissue. The aneuploid fractions were small, making up between 10 to 15% of the total events,(More)
Genomic DNA from 53 primary human renal cell tumors was screened for the presence of mutations in the tumor suppressor gene p53, using the polymerase chain reaction and single-strand conformation polymorphism analysis, followed by direct sequencing of DNA. Five cases showed mobility shifts. Sequencing of these samples revealed two cases of nonsense(More)
Infection of a human lymphoblastoid B cell line (Raji cells) with type D retroviruses, originally isolated either from subhuman primates (MPMV, LV) or from permanent human cell lines (PMFV, HeLaV, HEp-2V) led to the production of type D retrovirus particles. Subsequent cocultivation of uninfected and virus-producing Raji cells was employed for the(More)
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