Hiroo Tateno

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Previous epidemiologic and in vitro studies have indicated a potential involvement of estrogens in the pathogenesis of human colon carcinoma, but the precise roles of estrogens have remained largely unknown. Therefore, in this study, we first measured intratumoral concentrations of estrogens in 53 colon carcinomas using liquid chromatography-electrospray(More)
Gastrointestinal phenotype in cervical adenocarcinomas was examined by immunohistochemistry and correlated with morphologic features. Antibody panels included anti-MUC2, MUC6, CD10, chromogranin A (CGA) and HIK1083. In addition, expression of p16INK4, a cyclin-dependent kinase inhibitor which is expressed in a variety of high-risk HPV-related conditions,(More)
The analysis of population-speci®c human leukocyte antigen (HLA) has provided evidence that susceptibility to psoriasis is linked to HLA with racial differences (Henseler, 1997). Tumor necrosis factor-a (TNF-a) gene is also mapped within the HLA region and its product has been reported as one of the most important cytokines in the pathogenesis of psoriasis(More)
Plasma membrane-associated sialidase is a key enzyme for ganglioside hydrolysis, thereby playing crucial roles in regulation of cell surface functions. Here we demonstrate that mice overexpressing the human ortholog (NEU3) develop diabetic phenotype by 18-22 weeks associated with hyperinsulinemia, islet hyperplasia, and increased beta-cell mass. As compared(More)
Although cigarette smoking is a well-known risk factor of lung cancer, associations of cigarette smoking with the risk of other sites have not been fully elucidated in Japan. To simultaneously evaluate the associations of cigarette smoking with the risks of cancers of the stomach, lung, colon, and rectum, which have been the leading cancer sites in recent(More)
A 25-year-old Japanese man was admitted to our hospital with a history of recurrent pancreatitis and a pseudocyst of the pancreas. Abdominal computed tomography (CT) and magnetic resonance imaging (MRI) revealed an encapsulated multilocular cystic mass 5 cm in diameter in the pancreatic tail. Endoscopic ultrasonography demonstrated a mural nodule, and(More)
BACKGROUND It is hypothesized that breast cancer may consist of heterogeneous diseases with different hormonal environments classified by hormone receptor status. Epidemiologic studies evaluating risk factors for breast cancer by hormone receptor status have supported the hypothesis. However, there are inconsistencies in the risk factor profiles by estrogen(More)
A 63-year-old man presented with a perforation of the small intestine. A diagnosis of intestinal T-cell lymphoma (ITCL) was made from CD (cluster differentiation) 3 positivity and a rearrangement of T-cell receptor genes. The tumor also expressed CD56, which suggests it belongs to a rare subtype derived from activated cytotoxic intraepithelial T(More)
To elucidate the genetic alterations that are specific to Thorotrast-induced liver cancers and their possible roles in tumorigenesis, we analyzed loss of heterozygosity (LOH) at 37 loci. Our previous study of liver cancers that were not associated with Thorotrast found LOH at 9 of these loci to be characteristic of intrahepatic cholangiocarcinoma (ICC), at(More)