Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two cases of advanced breast cancer treated with a water-salt extract from BCG are presented, showing a positive response -- marked and durable regression of the breast tumor and of the axillar metastases, parallel in the second case with a disappearance of lung metastases.
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PMID:Therapeutic effect of a water-salt extract from BCG in two patients with advanced breast cancer. 109 68

Amyloid was isolated from lymph node metastases of a medullary thyroid carcinoma. SDS electrophoresis and gel filtration revealed a major subunit protein of MW less than 10 000. This subunit was capable of forming fibrils when dialysed in a solution against water. The amino acid composition of the subunit differed unequivocally from that of calcitonin. The amyloid also differed from systemic amyloids, since it did not form a top layer when homogenized and, further, did not seem to contain significant amounts of tryptophane. Since the amyloid of medullary carcinoma of the thyroid showed definite similarities to islet amyloid it is concluded that these two amyloids form a special class.
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PMID:Amyloid of medullary carcinoma of the thyroid; partial characterization. 117 56

The solid Yoshida sarcoma implanted on the feet of rats was subjected to local hyperthermia by water bath immersion. Tumor response was governed by the temperature and duration of heating (i.e., the degree of heating) and by tumor volume. With small tumors (1.0- to 1.5-ml volume) an intratumor temperature of 42 degrees maintained for 1 hr led to tumor regression in 11 to 13 days, and the tumor volume was halved every 2.6 days. Following 2 hr hyperthermia (42 degrees) the tumors disappeared in 6 to 7 days, and tumor volume was halved every 1.2 days. Tumors of 2 to 3-mol volume had left the exponential phase of the growth curve and required 2 hr at 42 degrees for cure. Following heating at 40 degrees for 1 hr, there was a 50% increase in O2 uptake and anaerobic CO2 production by the tumor, accompanied by enhanced dissemination by lymphatic, vascular, and direct routes, and tumor was found in organs not usually the site of metastases (e.g., testis and stomach). With large tumors (3.0 to 4.5 ml), the survival time of the rats was significantly reduced. These results occurred in the absence of a rise in body temperature of the animals. It is concluded that in this animal-tumor system, hyperthermia at a temperature inadequate for tumor destruction (40 degrees) can result in changes in the tumor that represent a hazard to the host.
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PMID:The influence of tumor volume and the degree of heating on the response of the solid Yoshida sarcoma to hyperthermia (40-42 degrees). 125 75

Ultrasound can induce tissue lesions by a combination of thermal and mechanical effects related to the tissue absorption of the energy emitted at the focal point of the transducer. The effects of focused ultrasound were studied in vivo in Fisher/Copenhagen hybrid rats bearing Dunning R3327 experimental prostatic carcinoma. The experimental tumour was transplanted by subcutaneous injection into the abdomen of 20 mg of tumour tissue derived from the Mat-Ly-Lu strain. Treatment was performed under general anaesthesia. The animal, maintained in a sarcophage exposing the tumour, was immersed in degassed water ensuring the interface between the tumour and the 1 MHz transducer. The displacements of the transducer were guided by computerised ultrasound screening, allowing irradiation of the entire tumour. The energy was supplied by a 7.5 kW amplifier in the form of series of impulses of variable duration. 77 rats were treated and the tumour growth was compared to that of non-irradiated control rats. Comparative series demonstrated the following results: 1. Immediate tumour destruction was obtained with a very high acoustic intensity (9,000 Watts/cm2) and a brief exposure time. 2. A transient slowing of the tumour growth rate was observed for an acoustic intensity of between 3,500 and 5,500 Watts/cm2. 3. Partial or total necrosis of the tumour was obtained with intensities of between 300 and 2,750 Watts/cm2 and a long exposure time. Total tumour destruction was obtained in 30 of the 49 rats treated under these conditions. 14 animals developed a local recurrence, 9 animals did not develop a local recurrence but developed metastases and 7 animals obtained long-term survival without local recurrence or metastasis. Under certain experimental conditions, focused ultrasound, without any adjuvant treatment, was able to destroy the Dunning R3327 Mat-Ly-Lu strain experimental tumour and, in certain cases, induced complete cure of this experimental cancer.
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PMID:[Tumor ablation with focalized ultrasound. In vivo experiment with prostatic adenocarcinoma R3327 Mat-Ly-Lu]. 130 56

The energy of high frequency ultrasound is used to disrupt cellular structures. Since the water content of each individual cell is of utmost importance for the physical destruction of the cell, there may be a tissue-selective effect in respect of tissues such as epithelium (high water content) and mesenchyma (low water content). The various therapeutic modalities are described in the following four cases. Ultrasonic tumor destruction was highly effective with regard to maximum reduction of tumor masses, especially for tumor sites which could not be removed by conventional tumor surgery. Blood vessels and nerves surrounded by tumor could be carefully and completely dissected--even in advanced stages. Peritoneal metastases from an ovarian carcinoma could be removed entirely, as well as the metastases within a tumor bulk (e.g. ureter within tumor mass); also the layers of tissue which were lost could be visualized again. So far, no increase in complications during and after surgery has been observed.
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PMID:[Experiences up to now with the ultrasound dissection instrument in gynecologic oncology]. 132 76

The pharmacokinetics of 186Re-HEDP, a radiopharmaceutical for palliative treatment of metastatic bone pain, was investigated in 11 patients (17 studies) who suffered from metastatic breast or prostate cancer. Half-life times of 186Re in three blood fractions (whole blood, plasma and plasma water) were 40.1 +/- 5.0, 41.0 +/- 6.0 and 29.5 +/- 6.4 hr, respectively. Time-dependent increase in plasma-protein binding was observed, probably caused by in vivo decomposition of 186Re-HEDP. Total urinary 186Re excretion was 69% +/- 15%, of which 71% +/- 6% was excreted in the first 24 hr after injection. The BSI (i.e., fraction of the skeleton showing scintigraphic evidence of metastatic disease) closely correlated with the fraction of dose non-renally cleared (r = 0.98). This implies that the amount of radioactivity taken up by the skeleton and hence the bone marrow absorbed dose can be predicted from a diagnostic pre-therapy 99mTc-HDP scintigram. The pharmacokinetic behavior indicates that 186Re-HEDP has suitable properties to justify its application.
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PMID:Pharmacokinetics of rhenium-186 after administration of rhenium-186-HEDP to patients with bone metastases. 137 67

We have previously reported that phytic acid (inositol hexaphosphate or InsP6), a natural constituent of cereal diet, when administered in drinking water exerts a consistent antitumor effect on experimental colon cancer in vivo. The objective of this study was to determine whether InsP6 has similar anti-neoplastic effect on other tumor models, such as murine fibrosarcoma. We report that intraperitoneal injection of InsP6 reduces growth of subcutaneously transplanted fibrosarcoma (FSA-1) in mice, prolongs survival of tumor-bearing mice and reduces the number of pulmonary metastases. Since InsP6 is a common constituent of our diet and has very little or no toxic effects, in addition to being chemopreventive, it could have potential use in therapy of cancer as well.
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PMID:Antitumor activity of phytic acid (inositol hexaphosphate) in murine transplanted and metastatic fibrosarcoma, a pilot study. 151 13

This study examined the influence of the oxygen-derived free radical removing agents allopurinol and dimethyl sulphoxide (DMSO) on the occurrence of hepatic metastases and on the survival rate in the rat with 1,2-dimethylhydrazine (DMH)-induced colonic tumours. At 10 weeks of age, rats were subcutaneously injected every week with 10 mg per kg body weight of DMH for 28 weeks. This produced colonic carcinoma in 80% of animals. The rats that were at this stage continued on their drinking water developed multiple hepatic metastases within 3 months and died at the age of 14.9 +/- 0.3 months (mean +/- SEM). Administration of 1,2 or 5% allopurinol or DMSO for drinking after production of the colonic tumours prevented the development of hepatic metastases 3 months later and significantly (p less than 0.01) extended survival to at least 22.1 +/- 0.1 months of age (mean +/- SEM). The results suggest that in the rat with colonic carcinoma, removing oxyradicals impairs the development of hepatic metastases and prolongs survival.
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PMID:Removing oxygen-derived free radicals delays hepatic metastases and prolongs survival in colonic cancer. A study in the rat. 154 96

The effect of combined hyperthermia and intratumoral administration of OK-432 (Picibanil) on the development of spontaneous lung metastases was studied. The spontaneous non-immunogenic fibrosarcoma, FSa-II, transplanted into the right foot of C3Hf/Sed mice, was used throughout. Hyperthermia was given locally by immersing the animal foot in a water bath set at 44.0 degrees C for 30 min. OK-432 in the dose of 2.5 KE was injected into the tumour 3 h before hyperthermia. This treatment has been shown to strongly inhibit local tumour growth. Sham hyperthermia, i.e. restraining the mice in holders, as well as local injection of saline solution, increased metastases incidence. The high incidence of metastases following combined sham hyperthermia and saline injection was substantially reduced by intratumoral administration of OK-432 given alone or combined with hyperthermia.
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PMID:Effect of thermoimmunotherapy with OK-432 on the development of spontaneous lung metastases in mice. 157 11

Precise estimation of the volume and growth rate of hepatic metastases would represent an important step forward not only in clinical oncology but also for the evaluation of experimental treatments in animal models. In the present study, an original method of volumetry of hepatic metastatic tumors in vivo has been tested in rats using magnetic resonance imaging (MRI). Three different hepatic tumor models mimicking liver metastases were established in syngeneic BDIX rats by injection of DHD/K12 rat colon cancer cells either directly under the liver capsule or via the portal system. The liver tumor volumes were estimated in vivo by using MR imaging of the liver and summing the individual tumor volumes in the sequential MR liver sections. The values of the tumor volumes measured by MRI were compared with those determined by a classical method of water displacement in vitro after killing the animals and excising the tumors. At 3 weeks after tumor implantation, liver tumors as small as 1 mm in diameter could be detected by MRI. The difference between the tumor volumes estimated by MRI in vivo and those measured by water displacement in vitro was 9% for single liver tumors and 16% for multiple liver tumors. Close correlation between the values of the tumor volumes measured by MRI and those determined by water displacement was observed in solitary liver tumors (r = 0.985, p less than 0.01) as well as in multiple liver tumors (r = 0.985, p less than 0.01), indicating the high accuracy of MRI volumetry for liver tumors. Estimation of the liver tumor volumes by MRI in the same animals at successive time intervals made it possible to construct tumor growth curves and to calculate tumor growth parameters. These data suggest that MRI volumetry represents an effective means of evaluating the efficacy of experimental treatments in small animals and may have potentially important applications in clinical patients.
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PMID:Quantitative study of the growth of experimental hepatic tumors in rats by using magnetic resonance imaging. 160 27


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