Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The retinoblastoma (RB) gene was the first tumor suppressor gene isolated and its inactivation is associated with the pathogenesis of several types of human cancer. In this study, we investigated the involvement of the RB gene in bladder and renal cell carcinomas by determining the loss of heterozygosity (LOH) at the RB locus and by DNA, RNA, and protein analysis of the RB gene. Whenever possible, the latter included Western blotting and immunohistochemical staining of the RB protein. In bladder carcinoma, 2 of the 8 cell lines we studied had an inactivated RB gene; one cell line lacked RB expression without a gross RB deletion, whereas the other cell line expressed only the underphosphorylated form of the RB protein. None of 16 low-grade noninvasive bladder carcinomas showed an alteration in RB protein by direct Western blot analysis, whereas 2 of 14 high-grade, invasive tumors had no RB protein as measured by both Western blotting and immunohistochemical staining. This suggests that the loss of RB function may be more important in the progression of bladder cancer than in its initiation, although more extensive studies are required. LOH within the RB locus was observed in 5 of 27 informative cases of primary bladder, ureter, or renal pelvis carcinoma. However, none of the 5 cases with LOH at the RB locus had a functional loss of RB protein expression. In renal cell carcinoma, one of the 12 cell lines had a gross homozygous deletion of the RB gene, and 2 of 32 primary tumors were negative for RB protein expression. LOH at the RB locus also was found in only 2 of 30 informative cases, one of which lacked RB expression. These results are the first to demonstrate the involvement of RB inactivation in the development of advanced primary bladder carcinoma and suggest that RB loss could have a role in certain renal cell carcinomas. Our data, however, show no correlation between LOH at the RB locus in bladder cancer and actual inactivation of the RB gene at the protein level. This may suggest that there is a second tumor suppressor or recessive cancer gene on chromosome 13 in bladder cancer and/or that the mechanism of RB inactivation in bladder cancer frequently involves independent mutations of each RB allele.
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PMID:Inactivation of the retinoblastoma gene in human bladder and renal cell carcinomas. 191 92

A case of simultaneous contralateral renal cell carcinoma and ureteral transitional cell carcinoma is presented. This patient underwent right radical nephrectomy, partial resection of left ureter and bladder, and end-to-end transureteroureterostomy. He is alive with no finding of recurrence after 1 year. Methods of treatment for bilateral urinary tract tumors are reviewed.
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PMID:A case of simultaneous contralateral renal cell carcinoma and ureteral transitional cell carcinoma. 202 77

An unusual case of 2 concurrent primary renal tumors within the same kidney is reported. A 70-year-old woman presented with gross hematuria when she was in the hospital for cerebral infarction. Excretory urography revealed a marked expansion of the right kidney with no renal function. CT scan showed a mass arising from the right kidney, the hydronephrotic right renal pelvis, and a mass in the lower right ureter. Selective renal angiogram showed marked neovascularity of the mass. There was an encasement of the intrarenal artery to the lower pole. Angiographic findings were highly suggestive of a renal cell carcinoma with a second neoplasm in the renal pelvis. Subsequently, the patient underwent right radical nephroureterectomy and partial cystectomy. Section of the removed specimen revealed a 4.0 X 3.8 cm solid tumor confined to the kidney in the upper pole and a transitional cell carcinoma arising from the renal pelvis. In addition, transitional cell carcinoma was present in the distal ureter.
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PMID:[Simultaneous occurrence of renal cell and transitional cell carcinoma in the same kidney and ureter. A case report]. 223 18

Polyamine concentrations of human cancerous and non-cancerous tissues from the kidney, ureter, bladder were measured by a new enzymatic method for isolation and determination of polyamines. In cancerous and non-cancerous tissue of the organs studied, the spermine level was highest followed by the spermidine and diamine levels. The concentrations of diamine, spermidine and spermine in cancerous tissues were significantly higher than those in non-cancerous tissues, but there was no significant difference in the spermidine/spermine ratio between the cancerous and non-cancerous tissues. These data suggest that polyamines are produced above the normal levels in pathological conditions such as renal cell carcinoma, ureteral cancer and bladder cancer.
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PMID:[Detection of polyamines by a new enzymatic differential assay. (8) Studies on tissue polyamine concentrations in patients with genitourinary malignant diseases]. 226 38

From 1972 to 1988, 108 patients underwent renal autotransplantation for renal artery disease (67), ureteral replacement (27), or renal cell carcinoma present bilaterally or in a solitary kidney (14). The most common indication for renal autotransplantation was to allow extracorporeal repair of complex branch renal artery lesions. Of the 54 patients in this group technically satisfactory branch renal arterial reconstruction and a successful clinical outcome were achieved in 52 (96%). Renal autotransplantation is the treatment of choice in these patients and also in selected children with main renal artery disease. Renal autotransplantation provided excellent results in 25 of 27 patients (92%) who required replacement of all or a major portion of the ureter. Over-all renal function was well preserved in these patients and only 1 has experienced chronic bacteriuria. Renal autotransplantation is a useful alternative to ileal interposition in this setting. Extracorporeal partial nephrectomy and renal autotransplantation were successful in 12 of 14 patients (85%) undergoing a nephron-sparing operation for renal cell carcinoma. In situ techniques are associated with less morbidity and currently are preferred in this group.
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PMID:The role of renal autotransplantation in complex urological reconstruction. 230 52

This case illustrates the difficulties that sometimes occur in the evaluation of patients with a nonfunctioning kidney. Because of the clinical presentation, suggestive of renal cell carcinoma, no urinary cytology study was obtained from the affected kidney. This study certainly would have led to the correct diagnosis. Despite this fact, the operative management would not have changed except for complete removal of the ureter. In our case we elected to follow the distal ureter by ureteral washings and ureteroscopy during follow-up cystoscopy studies to preclude a further operation. Although no data are available on the role of adjuvant therapy in these patients, because of the poor prognosis associated with such extensive disease we gave our patient 2 courses of M-VAC in an attempt to prevent progression of the disease.
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PMID:Right renal mass with vena caval thrombus. 230 73

Thyroid hormone participates in numerous cellular functions besides thermogenesis and metabolism. Several studies, including the recent identification of the product of an oncogene, c-erb-A, as a thyroid-hormone receptor, have shown possible involvement of thyroid hormone in the process of carcinogenesis. A recent anecdotal observation of an unusually high incidence of thyroid dysfunction in women with renal cell carcinoma led to a retrospective review of the incidence and distribution of thyroid disorders in women with renal cell carcinoma compared with a control group of women with transitional cell carcinoma of the renal pelvis, ureter, bladder, or urethra. Women with renal cell carcinoma had a statistically significantly higher percentage of hypothyroidism, thyroid disease in general, and the use of thyroid-hormone supplements as compared with the control group (P = 0.033, P = 0.005, P = 0.041, respectively). The nature of the relationship, however, could not be determined. These findings add a new dimension to renal cell carcinoma, and prospective studies are encouraged to define the contribution of thyroid hormone to renal cell carcinogenesis.
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PMID:Relationship of thyroid disease to renal cell carcinoma. An epidemiologic study. 235 76

By utilizing enzymic immunoassay, in a total of 161 cases of urologic tumors, Tamm-Horsfall Protein Coating Cells (THPC) could be found uniquely in the urines of renal tumors, whereas was absent in those of normal control as well as in the urines of transitional cell carcinomas of pelvis, ureter and bladder. Renal cell carcinoma predominated over in the THPC positive cases, among which granular cell carcinoma demonstrated a higher positive rate than that of clear cell type, 40% versus 15%. THP antigen could be found in the 66.6% frozen sections of renal cell carcinoma and the THP concentration in urine were also higher. Therefore, the detection of THP coating cells in urine of urologic neoplasm may be useful in evaluating the renal origin of the exfoliated tumor cells and elevating the screening accuracy of renal cell carcinoma, with no harms to the patients and no special equipment.
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PMID:[An evaluation of urinary Tamm-Horsfall protein coating cell in the diagnosis of urologic neoplasms]. 236 14

A 41-year-old miller undergoing hemodialysis for 9 years presented with recurrent episodes of asymptomatic gross hematuria of a 7 years' duration and left flank pain with slight fever of a four months' duration. CT scans revealed bilateral acquired cystic disease of the kidney (ACDK) and a mass (phi 4 cm) in the medial portion of the left kidney, which was angiographically a hypovascular tumor. Cystoscopic examination revealed multiple papillary tumors arising from the entire bladder wall. These findings suggested that the renal mass was a renal pelvic tumor. Bilateral nephroureterectomy with left paraaortic lymph nodes dissection and radical cystectomy were carried out, followed by urethrectomy two weeks later. Histologically, multiple papillary transitional cell carcinomas with G2 greater than G3 anaplasia were found in the left renal pelvis, the lower portion of the left ureter and the bladder. The tumors were predominantly superficial, although the renal pelvic one focally invaded into the muscular layer. Lymph node metastasis and renal cell carcinoma were not recognized. Postoperative course was uneventful with normal blood pressure, though anemia was slightly progressive. He has been free of disease for six months.
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PMID:[Multiple urothelial cancers accompanied by acquired cystic disease of the kidney in a long-term hemodialysis patient]. 240 87

A new enzymatic method for isolation and determination of urinary polyamines was presented and basically studied in previous report 1 and 2 in comparison with existing techniques. Using the new method, urinary polyamines were isolated and determined in 56 patients with genitourinary cancer. Urinary polyamines were also determined in 63 controls consisting of 20 normal subjects, 25 patients with benign urological disease and 18 patients with BPH. The mean concentrations of Diamine, Spermidine, Spermine in 20 normal subjects were 16.6 +/- 5.8 mumoles/g Cr, 4.7 +/- 2.0 mumoles/g Cr and 0.99 +/- 0.51 mumoles/g Cr respectively. To emphasize the specificity to cancer, the level of positiveness was modified to a higher value than M+3SD. The positive values thus calculated were 40 mumoles/g Cr for Diamine, 15 mumoles/g Cr for Spermidine and 3 mumoles/g Cr for Spermine. The positive ratios of Diamine in patients with early cancer were 43% in renal cell cancer, 20% in pelvic and ureter cancer, 0% in bladder cancer and 20% in prostatic cancer. Those of Spermidine were 29% in renal cell cancer, 0% in pelvic and ureter cancer, 20% in bladder cancer and 40% in prostatic cancer. Those of Spermine were 29% in renal cell cancer, 20% in pelvic and ureter cancer, 20% in bladder cancer and 0% in prostatic cancer. In early diagnoses, Diamine indicated high positive ratios to renal cell cancer and Spermidine to prostatic cancer. Relatively high positive ratios were demonstrated, when any one of the isolated polyamines was found positive: namely, 57% in renal cell cancer, 20% in pelvic and ureter cancer, 30% in bladder cancer and 40% in prostatic cancer.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Detection of urinary polyamine by a new enzymatic differential assay. (III). Studies on urinary polyamines in patients with malignant genitourinary diseases]. 242 8


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