Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027651 (tumor)
 685,946 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Gamma-Glutamyltransferase activity was studied in a man presenting with recurrent septicemia owing to pyonephrosis and renal carcinoma. Increased activity in the urine was ascribable to administration of the aminoglycoside antibiotic, tobramycin. That the renal carcinoma did not contribute to the increased values was confirmed by homogenization and enzyme histochemistry of the tumor. Although the activity of this enzyme in serum was greater than normal, this persisted postoperatively, and thus was not related to the renal carcinoma.
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PMID:Effect of tobramycin on urinary gamma-glutamyltransferase activity: Studies in a case of renal carcinoma. 0 98

A case of hypernephroma is presented in which the initial finding was heavy bleeding from a vaginal tumor. Fewer than 90 cases of genital metastases in males or females have previously been reported.
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PMID:Genital tumor as a presenting symptom of renal hypernephroma: a case report. 4 59

A brief discussion of the aetiology and epidemiology of renal carcinomas is followed by a description of the clinical features. Attention is drawn to the significance of symptoms emphasizing the importance of early diagnosis. Intravenous urography still remains as the most important diagnostic procedure. It is pointed out that sonography and computer-tomography are now established as newer diagnostic methods, i.e. in distinguishing between cyst and tumor, in renal masses. Therapy, is still based upon surgical treatment. Transperitoneal, radical tumornephrectomy as compared with simple lumbar nephrectomy, has improved 5-year survival rate up to 16% especially in stage III tumors. Extracorporeal surgery for single kidney patients as hyperthermic surgery constitute new surgical methods, but only for specifically equiped urologic clinics. Embolisation of renal cell carcinoma is also used as therapeutic management in largely progressed tumors, and also used, as a preoperative measure, for the reducement of tumor size. Irradiation, before and after surgical treatment, as well as cytostatic therapy, revealed no significant improvement. We have reason to hope that progress in the research of hormonal- and immunotherapy will improve 5-year survival rate, in renal cell carcinoma.
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PMID:[New possibilities in diagnosis and therapy of renal carcinoma (author's transl)]. 4 18

Attempt were made to initiate cell lines from 11 specimens obtained from nine patients with renal cell carcinoma. Primary cultures were obtained in seven instances with only five long term cells lines. Two of these cell lines were obtained from metastatic tumors in two patients. Using microcytotoxicity assay, both autochthonous and allogeneic lymphocytotoxicity, specific to renal cell tumor, was demonstrated. This would suggest a common cross-reacting tumor-associated antigen. No lymphocytotoxicity could be demonstrated using autochthonous lymphocytes aganist two metastatic tumor target cell lines. This would suggest some antigenic differences between primary tumor and its metastases. In seven instances significant complement-dependent cytotoxicity was demonstrated using six different renal cell carcinoma target cell lines. Serums from three patients with renal cell carcinoma, one without any recurrent tumor and two with metastases, appear to significantly block the autochthonous and allogeneic lymphocyte cytotoxicity.
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PMID:Immunologic evaluation of human renal cell carcinoma. In vitro studies. 4 33

One primary goal of preoperative radiotherapy for hypernephroma is to reduce the volume of tumor and, therefore, improve the possibility of resection. It is important that this goal be accomplished promptly so that 4 to 6 weeks after radiation therapy nephrectomy can be attempted. A longer waiting period may allow fibrosis of the normal surrounding tissues and make surgery more difficult. In addition, longer waiting periods could theoretically increase the probability of metastasis. Therefore, we plan to continue clinical investigation on the use of combined intra-arterial actinomycin D and radiotherapy as a possible useful means of improving the possibility of prompt surgical resection, since theoretically this regimen may be a method of increasing the effective radiation dose to the hypernephroma without increasing the effective radiation dose to surrounding normal tissue, such as bowel. The method may also have merit as an improved means of palliating selected patients with metastases who are symptomatic from a bulky primary hypernephroma.
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PMID:Combined intra-arterial actinomycin D and radiation therapy for surgically unresectable hypernephroma. 5 Nov 1

Three patients with clear cell renal carcinoma and one with another intrarenal malignancy were studied for the presence of glomerular localized immunoglobulins, complement components and tumor specific antigen and antibody by immunofluorescence. To determine the association and elucidate the pathogenic mechanisms involved in the relationship between tumors and glomerular deposits, antibody eluted from tumor tissue and renal glomeruli, cryoproteins, serum antibodies and rabbit antisera to tumor tissue were tested for specificity to antigen. The relationship between tumor antigens and the lipoprotein antigen localized in normal proximal tubular brush border (RTE) and the small bowel mucosa, was studied by immunofluorescence, absorption and blocking studies as well as complement fixation. Immunoglobulins and complement components were localized in the glomeruli and tumor membrane of all patients. Sera and glomerular fixed antibody from three patients with renal cell carcinoma localized to normal proximal tubular brush border and jejunal mucosa as well as to tumor membrane and the glomeruli and proximal tubules of all of these three patients. Anti RTE activity was also detected by complement fixation. Immunologic similarity between RTE and renal cell carcinoma antigen was confirmed by absorption studies. Furthermore, cryoprecipitable complexes of tumor antigen and specific antibody were isolated from the serum. The tumor antibody was immunologically similar to RTE. In the other case the rabbit anti-tumor antibody and the patient's serum fixed to the tumor membrane and kidney of the patient but did not show cross reactivity with the renal cell carcinoma or RTE. These studies suggest that the tumor antigen in renal cell carcinoma is similar to RTE and the glomerular deposits represent tumor antigen and antibody complexes. In addition these investigations support the hypothesis that tumor immune complexes are significant in the glomerular lesions, and that the origin of renal cell carcinoma is in the proximal tubule. The investigations also show that tumor antibodies are specific for tumors of the same morphological type but not for other tumors in the same tissue. Moreover, the renal glomerulus appears to be a chosen anatomic site for deposition of tumor antigens and antibodies and studies of the kidney may provide insight into the nature of tumor antigens and antibodies. Cryoprecipitation appears to be a valuable method in isolation of tumor complexes and characterization of tumor specific antigen and antibody.
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PMID:Endogenous immune complex nephropathy associated with malignancy I. Studies on the nature and immunopathogenic significance of glomerular bound antigen and antibody, isolation and characterization of tumor specific antigen and antibody and circulating immune complexes. 5 50

According to cell cycle synchrony principles, bleomycin was infused for 48 hours, followed by a dose of either methotrexate or hydroxyurea after a 24-hour rest, in 36 adult patients with disseminated carcinoma. In this preliminary study, a 59% response rate was noted among patients with epidermoid carcinoma of the head and neck. Four of four patients with transitional cell carcinoma of bladder and one patient with hypernephroma also responded. No responses were noted among five patients with epidermoid carcinoma of the lung. The length of response ranged from 1 to 8 months (median, 2 months). Seventy-seven percent of the responders had extensive prior radiotherapy. The first patient treated had fatal sepsis with leukopenia, which prompted a widening of the treatment interval. Subsequently, toxicity was mainly mild or absent, the moderate or severe toxicity was primarily neutropenia, which was reversible. The use of low-dose bleomycin infusion is safe and may play a role in cancer therapy in combination with other agents specific for certain tumors. The length of infusion should be determined by the cell cycle of the tumor, if its potential synchronizing capabilities are to be exploited.
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PMID:Intravenous bleomycin infusion as a potential syncronizing agent in human disseminated malignancies: a preliminary report. 6 5

An animal model to investigate new therapeutic approaches for the treatment of renal adenocarcinoma has been further studied. This model is based on a transplantable murine renal adenocarcinoma whose growth follows Gompertzian kinetics, relates to tumor RNA and DNA content, and also correlates with the rate of tumor DNA synthesis. This model in the current study was also evaluated for the ability of various therapeutic agents to inhibit tumor DNA synthesis. Such tests may be valuable for the preclinical screening of potentially useful drugs and may provide insight into fundamental aspects of tumor control. In this study, CCNU, BCNU, and adriamycin were potent inhibitors of tumor DNA synthesis whereas cytosine arabinoside, bleomycin, and cyclophosphamide were not. These observations were confirmed by autoradiography and correlated with other experimental end points of tumor therapy such as tumor weight and animal survival. This preclinical screening model is an effective and helpful means whereby new drugs and drug combinations can be tested for potential use in human renal cell carcinoma.
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PMID:Pharmacokinetic studies of a transplantable murine renal adenocarcinoma. 6 45

Ten patients with inoperable renal carcinoma underwent embolization of the renal artery. As embolic material homogenized autologous muscle was used. Besides conventional catheters introduced by the Seldinger technique also flow-directed balloon catheters were employed. The merely palliative purposes of embolization were staunching of otherwise untreatable hematuria in eight and reduction of tumor bulk in two cases. Bleeding could be stopped in all, tumor mass reduced in 6 patients as shown by control angiographies. There was always a recanalization of the renal arteries, the vascular tree, however, being much rarefied. Five patients died of the metastatic cancer within the first seven months after embolization, one patient three days after embolization due to phlegmonous retroperitoneal infection. Further complications consisted in flank pain, reversible rises of body temperature, blood pressure and serum creatinine levels. Thrombotic occlusion of deep veins occurred in two patients. The only true benefit of embolization for the patient consists in a relatively simple, fast and safe way to control an otherwise untreatable hemorrhage from inoperable renal carcinoma. Whether prolongation of survival can be reached remains doubtful in spite of a reduction of the tumor mass.
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PMID:[Transfemoral catheter embolization of inoperable kidney cancer]. 7 51

A comprehensive survey of the complications following 151 transfemoral embolizations of renal carcinoma is presented, including 9 of our own patients. The main side effects seen after this procedure are (in decreasing frequency): elevation of body temperature, transient elevation of arterial blood pressure, impairment of renal function, infection of the necrotic tumor, thromboembolic incidents, and accidental embolization of other organs. Total lethality is about 3.3%. Possible contraindications and precautionary measures are derived from the discussion of the pathophysiologic reactions in the course of the complication: avoidance of therapeutic embolization immediately after diagnostic angiography, strict asepsis, addition of antibiotics to the embolization mixture, prophylactic administration of heparin, and the use of flowdirected balloon catheters.
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PMID:[Complications following transfemoral embolization of renal carcinoma. Survey and experience (author's transl)]. 7 61


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