Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024623 (gastric cancer)
 36,219 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The survival curves of MGc80-3 cells exposed for 24 hr to various concentrations of 10 anticancer drugs were obtained by means of colony-forming assay. Comparison of drug doses required to reduce cell survival by 90% (ID90) with the clinically achievable peak plasma drug concentration (PPC) showed that MMC, ADM, and 5-Fu had strong cytotoxicity (PPC/ID90 = 18-36), whilst the other drugs were less effective (PPC/ID90 less than or equal to 11). The fact that MMC, ADM, and 5-Fu are most effective in the treatment of gastric cancer suggests that the cell line MGc 80-3 may still retain its original drug sensitivity which is consistent with that noted in clinical gastric cancer. This cell line could be useful in screening for new compounds with activity against this disease.
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PMID:[Chemosensitivity of MGc 80-3 human gastric adenocarcinoma cells and its clinical significance]. 255 35

During the period from June 1973 to December 1985, one thousand and ninety-seven patients with primary gastric cancer have been operated on in our Dept. of Surgery. Of the 1097 gastric cancer patients, 59 were reoperated and evaluated for chemotherapeutic effects. The cases were 21/548 (3.83%) for absolute curatively resection, 16/202 (7.92%) for relative curatively resection, 9/64 (14.0%) for relatively noncurative resection and 13/283 (4.59%) for absolutely noncurative resection, respectively, The median survival period from primary gastrectomy to second look operation was less than 2 years, and the prognoses were not very good. The factors of relaparotomy were peritoneal dissemination 44/59 (78.6%), invasion to contiguous structures, lymph node metastases and liver metastasis. Those with local recurrence or remnant stomach cancer could be resected in 5 cases, and one patient was well more than 2 years following surgery. The reoperation procedures were reconstruction of artificial anus, intestinal anastomosis or intestinal fistula. Some 7 of 59 patients were found to be entirely beyond surgical aid at the second look operation and were administered large-dose OK-432 or ADM patch method. These methods are suggested for their usefulness for peritoneal dissemination.
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PMID:[Evaluation and problems of second-look operations in resectable gastric cancer]. 273 41

We produced the chelated Adriamycin-Aluminum complex (ADM-Al complex) for experimented evaluation. Human gastric cancer was transplanted into nude mice divided into 4 groups for drug injections; 1) Control (0.9% NaCl), 2) Al acetate (1 mg/ml), 3) ADM only (1 mg/ml) and 4) ADM-Al complex (ADM 1 mg/ml + Al 1 mg/ml), 0.2 ml of each was administered through several injections simultaneously into the tumor periphery. Long term retention of ADM in the tumor was observed pathologically in Group 4. The concentration (microgram/g) of ADM after injection (5, 7, 28 days) was 22.3, 12.6, and 3.5 in Group 4, against 8.4, 2.0, and 0.0 in Group 3 (p less than 0.01). The estimated tumor weight inhibition rate was 66.6% in Group 4, compared with 21.4% in Group 3, and only 3% in Group 2. DNA tritium thymidine uptake inhibition rate was 43.8% in Group 4, compared with 21.2% in Group 3, and in 9.4% Group 2. No side-effect due to Al-chelation was observed. These results demonstrate the effectiveness of ADM-Al complex as a topical anticancer agent. Clinical use must be explored.
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PMID:[Experimental study on an adriamycin-aluminum complex modified anticancer agent]. 273 41

Twenty patients with advanced gastric cancer were treated with FAP.MMC (5-FU 350 mg/m2 i.v. on days 1-3, ADM 40 mg/m2 i.v. on day 1, CDDP 20 mg/m2 i.v. on days 1-3, MMC 6 mg/m2 i.v. on day 1), administering 5-FU, ADM and CDDP every 4 weeks and MMC every 8 weeks. Fourteen patients were evaluable for responses. Four (29%) partial responses and two minor responses were observed. The median duration of partial response was 3.8 months (range 2.5-7 months). The median overall survival time was 5 months (range 1.5-15 months). Leukopenia was relatively severe, with a median WBC nadir of 1,300/mm3. Nausea and vomiting were frequent but moderate. However, these toxicities were clinically manageable. FAP.MMC was thus considered effective for advanced gastric cancer.
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PMID:[Combination chemotherapy of 5-fluorouracil (5-FU), adriamycin (ADM), cis-diamminedichloroplatinum (II) (CDDP) and mitomycin C (MMC) (FAP.MMC) in advanced gastric cancer]. 312 69

Flow cytometric DNA analysis has been performed on tumor tissue obtained by endoscopic biopsy before and after intraarterial infusion of ADM and 5Fu. The patient was a 74-year-old woman with a gastric cancer with an involvement of a para-aortic and cervical lymph nodes. Histological examination revealed a poorly differentiated adenocarcinoma, and flow cytometric DNA analysis disclosed that the DNA ploidy (DNA index) did not differ before and after intraarterial infusion of ADM and 5Fu. The fraction of the tumor cells in the S + G2.M phase of the cell cycle however, decreased from 56% to 44% with anticancer chemotherapy. A flow cytometric DNA analysis, using biopsied samples of tumor tissue, was found to be a useful tool for monitoring the effect of anti-cancer chemotherapy for solid tumors.
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PMID:[Flow cytometry DNA analysis of a gastric cancer before and after intra-arterial anticancer chemotherapy--report of a case]. 312 72

Sixty-eight patients in which non-resectable liver metastases were the predicted limiting factor of their survival were treated with 5-FU, ADM, MMC combined hepatic infusion chemotherapy using the following regimen: 5-FU 334 mg/m2/w shot, ADM 20 mg/m2/4 shot, MMC 2.7 mg/m2/2w shot. In the case of colorectal cancer, 5-FU 167 mg/m2/day continuously for over 3 months, then 334 mg/m2/w shot was used. In every case, the catheter was placed into the hepatic artery via the left subclavian artery and an implantable portal system was used for shot infusion and a portable pump for continuous infusion. The results were as follows: Except for one drop-out case, 67 patients were able to receive this therapy. Bone marrow suppression occurred in 32.8% of patients, gastroduodenal trouble in 31.3%, and hepatic arterial occlusion in 19.4%. Response rates and 50% survival times were 65.6%, 324 days for colorectal cancer, 80.0%, 393 days for breast cancer, and 87.5%, 342 days for gastric cancer. These are preliminary results. However, we conclude that it is appropriate to go on with this study, although discussion of this regimen involving more cases is required.
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PMID:[Preliminary results of a phase II study of 5-FU, adriamycin, and mitomycin C (FAM) in combined hepatic infusion in patients with non-resectable metastatic liver cancer]. 360 52

Subrenal capsule assay was performed on 35 fresh cancer tissue samples (13 stomach, 7 colon, 8 breast and 7 others) against MMC, 5-FU, ADM, CPA, MTX and cDDP employing normal immunocompetent ddY mice following Bogden's original method. Evaluability was 86% (30/35). Sensitivity was between 32 and 46% for each of the drugs except cDDP. Some organ-specific variations were noted between gastro-colic cancers and breast cancers with regard to chemosensitivity spectrum and also individual cases of the same histological type did not show a uniform one. Gastric cancer had the highest activity. The assay/clinical correlations were evaluable in 10 cases where 6 cases on active agents achieved two PR, two NC and PD, while all 4 cases on non-active agents showed PD. Histological analysis of implants, however, disclosed the following inherent problems: First, there was heterogeneity in tissue fragments due to the variable amounts of stroma; Second, apparent host reactions were seen in the untreated groups on the 6th day, accompanying marked damage to cancer cells. In contrast, in drug-treated groups, host reactions in most of them were suppressed and cancer cells were seen frequently in considerable amounts. This fact implies the mechanism that SRCA is based on, in spite of the xenograft immune; Third, there was some discordance between the macroscopic and microscopic findings. SRCA is assumed to be appliable to individual clinical cases up to a certain level which should be determined by histological analysis as well as by accumulation of clinically correlated cases.
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PMID:[Clinical application of the subrenal capsule assay (SRCA) and related problems]. 361 58

We have performed experimental and clinical studies to observe whether higher concentrations of drugs are selectively delivered into tumor tissues through the tumor vessels and improved chemotherapy results were obtained by using noradrenaline in intraarterial chemotherapy. Noradrenaline administered into the tumor-feeding artery may enhance drug delivery into the tumor tissue and show improved chemotherapy results on Walker-256 formed tumor vessels. These advantages of using vasoconstrictive agents may be considered to be derived from the high injection pressure caused by increased vascular resistance and various other factors induced in abnormal microcirculation of the tumor vessels. MMC concentration in Walker-256 (weight 0.2 to 0.39 g) after intraarterial administration of 10 mg of MMC in 2.5 ml of physiological saline were 2.20 +/- 1.26 mcg/g (n = 11) in the noradrenaline group and 0.52 +/- 0.22 mcg/g (n = 13) in the MMC alone group. The 90-day survival ratio for intraarterial injection of 0.25 mg/kg of MMC and 2 mcg of noradrenaline was 42.9% (6/14), a result equivalent to a dose range of between 0.50 mg/kg and 0.75 mg/kg without the use of any vasoactive drug. The median survival periods for stomach cancer (Stage 4) after non-radical surgery by means of intraarterial chemotherapy with and without noradrenaline were, respectively, 12 months (n = 8) and 5.8 months (n = 6), with statistical significance (P greater than 0.05). Effective histological changes estimated microscopically by Takahashi's criteria of preoperative treatment in 31 stomach cancer patients were found in 11 patients (36.7%) with primary tumor and 12 patients (52.2%) with metastatic lymph nodes. A partial response rate of 54.5 (6/11) for hepatic tumor (Stages 3 to 4 according to was achieved with the use of the Ariel's classification) following regimen: intravenous injection of 70 mg/body of CDDP on the first day, followed by intraarterial injection of 0.1 to 0.4 mg/kg of MMC and 0.1 to 0.6 mg/kg of ADM together with 0.3 to 1.0 mg of noradrenaline in 40 to 100 ml of physiological saline for 3 to 20 minutes within one week after the first treatment. Most of the complications were due to hemorrhage from ulceration of the intestinal canal because of mucosal damage caused by the high concentration of anti-cancer drugs induced by noradrenaline. Decrease of hemoglobin of more than 1.0 g/dl was found in 19 out of 31 patients (61.3%) who received no treatment for bleeding, and in one out of 13 patients (7.7%) who was administered 200 mg of cimetidine twice a day for one week.
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PMID:[Intra-arterial infusion chemotherapy combine with noradrenalin administration (an improved antitumor effect using a cancerous blood vessel]. 393 58

In order to establish a standard chemotherapy for advanced gastric cancer, a randomized controlled trial to compare clinical efficacy of two regimens consisting of ADM, 40 mg/m2 q. 3W plus 5-FUDS, 4 mg/kg daily (AF) versus MMC, 10 mg/m2 q. 3W plus 5-FUDS, 4 mg/kg daily (MF) for advanced gastric cancer was performed by a cooperative group involving 82 institutions throughout Japan and the following results were obtained. 1. Of 82 evaluable patients with measurable lesions, partial responses were seen in 8 cases (17.4%) out of 46 patients on AF arm and in 4 cases (11.1%) out of 36 patients on MF arm. 2. Of 18 patients receiving cross over from AF arm to MF arm, partial responses were seen in 2 cases, while there was no responder in 11 patients receiving cross over from MF arm to AF arm. 3. The median survival time of a total of 119 patients treated with AF was 157 days while that of 107 patients with MF was 139 days. This difference was not statistically significant. 4. Patients treated with AF had higher incidence of epilation and clinical cardiac symptoms, while thrombocytopenia was more profound in MF arm.
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PMID:[Chemotherapy for advanced stomach cancer -- a controlled study of AF and MF]. 635

Since interferon (IFN) has a mechanism of action very different from chemotherapeutic agents, it is possible that a combination of two may be of therapeutic value. The authors studied increased cytotoxic effects of anticancer drugs by IFN on human tumors xenografts in nude mice. Tumor used in this study were "SH-10", "S-7379" (gastric cancer) and "O-7294" (malignant melanoma), serially transplanted subcutaneously. IFN was injected, 5 X 10(5) mu/mouse, every day for 2 weeks and a single drug was administered 3 times every fourth day. Cytotoxic effect was determined by tumor size on day 16 after treatment. Of the 7 drugs, MMC and ADM were most effective. Other drugs showed a slight inhibition of tumor growth by combination therapy with drugs and IFN.
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PMID:[Increased cytotoxic effects of various anticancer drugs by alpha-interferon (HLBI) on human tumor xenografts in nude mice]. 643 98


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