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)

An additional 244 unfiltered sera have now been studied in a series of controlled, coded tests to determine the relationship of squamous carcinomas of the head and neck and cervix to the presence of complement-fixing antibodies to herpesvirus-tumor-associated antigens (HSV-TAA) in both tumor-bearing and cured patients. Ninety % of sera from patients with squamous carcinomas had antibodies to HSV-TAA, in contrast to 11% of sera from patients with nonsquamous cancers and 4% of sera from noraml individuals. The temporal relationship of Stage 1 laryngeal carcinomas suggests that HSV-TAA appearance precedes the immune defects. An in vitro correlate of the previously demonstrated specific delayed hypersensitivity reactions in controlled skin tests of squamous carcinoma patients with HSV-TAA is reported. In leukocyte migration inhibition tests, the migration indices after incubation with HSV-TAA of peripheral blood leukocytes from patients with squamous carcinoma (x = 0.847) were in definite contrast to migration indices seen for normal leukocytes (x = 1.037) and patients with nonsquamous solid cancers (x = 1.03). Thus, these polypeptides elicit both humoral antibody response and cell-mediated reactivity.
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PMID:In vivo and in vitro measurements of the relationship of human squamous carcinomas to herpes simplex virus tumor-associated antigens. 5 26

Forty-two specimens of human prostatic neoplasia (32 carcinomas, eight benign hyperplasia, two bladder tumors infiltrating prostatic tissue, and 15 tissue cultures derived from prostatic neoplasia) were examined by electron microscopy. Intracisternal viruslike particles, 150-200 nm in diameter and budding, were found in epithelial cells of four carcinomas. In some of these particles, an electron-dense central core or two concentric layers were discernible. In addition, particles resembling type C virus particles, 90-130 nm in diameter, were observed in intracytoplasmic vacuoles in five cases of carcinomas and in one case of benign prostate hyperplasia. Thus, viruslike particles were found in 9 of 32 cases of prostate carcinoma and in one of eight cases of benign prostate hyperplasia. Virus particles have, so far, not been found in any of the tissue culture specimens. Further studies are required to determine the nature of these particles and their relationship to the origin of human prostatic neoplasia. Additional observations in both benign hyperplasia and carcinoma include intranuclear mitochondria, multilayered nuclear inclusions, bundles of intranuclear fibrils, intracytoplasmic tubules, extracellular tubulo-filamentous structures, and cilia.ltilayered nuclear inclusions, bundles of ilo-filamentous structures, and cilia.
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PMID:Ultrastructural studies of human prostatic neoplasia. 5 84

Carcinoma of the vulva often presents as a large ulcerating or fungating tumor with considerable destruction of the vulva and surrounding tissues. The area usually is very painful and foul smelling. Most such tumors are of the squamous-cell variety. Despite the degree of histologic differentiation, the lymph nodes are involved in more than 50% of the cases. The best therapeutic results are obtained with radical vulvectomy and groin node dissection "en bloc." Occasionally treatment should be modified in the geriatric patient because of associated medical problems. Various techniques are discussed. Since the disease is rare, best results are achieved by referral to a specialized treatment center.
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PMID:Carcinoma of the vulva. 5 32

It has been traditional to exclude patients with radiation-recurrent carcinoma of the uterine cervix or other pelvic neoplasms, incapacitating pelvic pain, postirradiation fistulas, hemorrhage, or malodorous draining tumor necrosis from pelvic exenteration if cure of the malignant disease is not achievable. This negative attitude is a direct result of the reported high morbidity, prohibitive mortality, and low salvage rate previously associated with pelvic exenteration, the only acceptable surgical approach to these diseases. A recent experience with eighteen patients who underwent pelvic exenteration for advanced primary or recurrent carcinoma of the cervix, urinary bladder, or rectum has led us to challenge several traditional concepts regarding this operative procedure. We have observed but one operative death and our morbidity has been minimal. This may reflect our belief that an aggressive pelvic lymphadenectomy in those patients with direct visceral involvement from radiation-recurrent carcinoma of the pelvic viscera is not advantageous since no significant survival has ever been documented for patients with pathologic visceral involvement and positive lymph nodes. In addition, significant morbidity has always been associated directly with pelvic lymphadenectomy in the irradiated pelvis, and elimination of this phase of the operation in selected patients with radiation-recurrent carcinoma is indicated. Moreover, the considerable decrease in morbidity and the minimal mortality observed have led us to adopt a very liberal attitude toward preoperative selection criteria, and we regularly now use pelvic exenteration not only for cure but as intentional palliation in selected patients. We strongly believe that elimination of pain, fistulas, pelvic sepsis, hemorrhage, and malodorous areas of tumor necrosis are important for improving the quality of life for both the patient and family.
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PMID:Pelvic exenteration as palliation of malignant disease. 5 24

With the use of immunoperoxidase methods, paraffin-embedded hepatic tissue from 21 patients with primary hepatic carcinoma was tested for alpha-antitrypsin (AAT) deposition and was compared for sensitivity with the PAS reaction. Specific AAT immunoreactivity was present in tumor cells in half of the test cases, either alone or in combination with positive nonneoplastic hepatocytes. While the PAS findings generally parralleled the specific immunohistochemical studies, the latter technique exhibited greater sensitivity in AAT detection. Cytoplasmic tumor cell inclusions of three types were identified, but only one type, the solid, was found to represent immunoreactive AAT deposits. These findings confirm as association between hepatic deposition of AAT and the occurrence of primary liver carcinoma. Further prospective serum and tissue studies on patients with hepatoma are needed to extend these observations.
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PMID:Alpha-antitrypsin deposition in primary hepatic carcinomas. 5 64

Thirty-five of totally 50 patients with carcinoma vulvae were treated with bleomycin. Most of the patients were older people and had more advanced disease. They were grouped according to the TNM system and the age. Bleomycin alone (2 X 15 mg/m2 weekly; 390 and 420 mg total dose) was given to two patients. One of the patients had a complete remission and the other one a partial remission with reduction in tumor size of more than 50%. Nineteen patients received bleomycin (2 X 10 up to 2 X 15 mg/m2 weekly: 200-300 mg total dose) in combination with radiation therapy using fast electrons (betatron; 3000-5000 R). In this group 21,1% of the patients had complete remission and 31,5% of patients had a partial remission of more than 50% tumor size reduction (objective remission rate 52,6%). Bleomycin was also beneficial when combined with surgery plus irradiation. Palliative irradiation was used in four patients with a very advanced disease. Eleven patients were irradiated postoperatively with fast electrons (4000-6000 R). In this group, 65% of the patients were free from recurrences more than one year after the beginning of the treatment. Our results indicate that combined therapies using bleomycin, surgery and radiation therapy were more effective in the treatment of vulvar carcinoma than single treatments alone. It should be emphasized that bleomycin is effective as a palliative treatment of squamous cell carcinoma of the vulva.
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PMID:[Therapy of vulvar carcinoma]. 5 32

The records of 136 patients with periampullary and pancreatic carcinoma were reviewed and the information compared with other reported series. The clinical presentation with jaundice without other manifestations is associated with the greatest number of potentially curable tumors. The majority of patients were treated by palliative bypass or had exploration and biopsy only. A tissue diagnosis is not imperative before radical excision, providing a systematic preoperative and operative evaluation indicates tumor. Ligation of the pancreatic duct with external drainage results in low morbidity and mortality and good functional results. Radical pancreaticoduodenectomy done in 21 per cent of our patients offers the best palliation and the only hope for cure.
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PMID:10 years' experience treating pancreatic and periampullary cancer. 5 61

Cell-line specific cell surface components were demonstrated on cells of various hypotetraploid ascites cell lines, but not on hyperdiploid cells derived from a mammary carcinoma induced by mammary tumor virus (MTV) in syngeneic C3H/He mice. These substances caused cell-line-specific transplantation antigenicity and were identified, together with MTV-associated substances and tumor-associatied embryonic materials, as being the binding sites for tumor cell agglutinating factors found in sera from tumor-bearing and regressor animals. Particles containing the cell line-specific substances were released from these cells by hypnotic treatment. They could be purified as a single peak in a sucrose density gradient. They were, however, not dissociated from the MTV-associated substances. Absorption studies of agglutination activity were extensively used for demonstration of specificity.
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PMID:Cell line-specific cell surface components of hypotetraploid ascites mammary carcinoma cells inducing humoral reactions in the syngeneic host. 5 9

Of 145 women with metastatic breast carcinoma who survived palliative surgical castration, 40.7% had objective remission and another 11.0% had subjective improvement. Favorable response was more frequent in ovulating patients who had small masses of recurrent tumor in fewer locations, with skeletal spread especially well tolerated. Palliation appeared to be related to the site of metastatic disease and numbers (mass) of metastatic sites, but not to the age of the patient, tumor histology, or the disease-free interval. Survival was better for the patients who showed improvement after castration. Such improvement may predict continued relief from the use of other modalities of systemic treatment.
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PMID:Therapeutic oophorectomy in disseminated carcinoma of the breast. 6 95

Chromosomal studies were performed on primary cultures from human prostatic adenomas and carcinomas. All cells from both tumor types showed diploid chromosomal counts with a normal human karyotype. Chromosomal analysis was also performed on cells of the permanent epithelial line EB 33 derived from a human prostatic carcinoma in this laboratory. In contrast to the primary cultures, hypotriploid chromosome numbers were found during continuous culture for more than 1 year. The range of chromosome numbers increased with time in culture and was reduced to the original model number of 64 by only one animal passage ("nude" mice). Feulgen fluorometry on different passages of the permanent cell line EB 33 showed tetraploidy. This discrepancy to the hypotriploid chromosome number can be explained by different Feulgen hydrolytic properties of the different cell types.
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PMID:Chromosomal studies of human prostatic tumors in vitro. 6 Mar 1


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