Abstract:
OBJECTIVE:Low-dose-rate (LDR) brachytherapy is an effective treatment for tongue cancer. However, little is known about the biological mechanism underlying this therapy, characterized by delivery of continuous exposures of LDR irradiation. It is reported that lower microvessel density (MVD), lower Ki-67 index or higher expression of endogenous hypoxic markers such as carbonic CA IX and Glut-1 are related to the poor control of tumors treated with external irradiation. To elucidate the biological characteristics of LDR brachytherapy, we analyzed our results in cases of tongue cancer treated with LDR brachytherapy by using immunohistochemical stainings with antibodies against Ki-67 and MVD, Glut-1 and CA IX. METHODS:The prognostic value of Ki-67 index, MVD and the expression of CA IX and Glut-1 was assessed in 68 tongue cancers treated with LDR brachytherapy. The specimens were taken from tongue cancers before radiation therapy and immunohistochemical staining was performed. RESULTS:The local recurrence-free survival rates were significantly different between T1+T2 and T3 (P = 0.00067), but not between low and high Ki-67 indexes (P = 0.54), between low and high MVD (P = 0.071), low and high CA IX indexes (P = 0.062) or low and high Glut-1 indexes (P = 0.107). T stage, the size of the tumor was the only significant factor for local control in multivariate analyses (P = 0.0377). CONCLUSION:LDR could overcome the radioresistence of non-cycling and hypoxic cells; however, we cannot draw firm conclusions due to the limited number of patients.
journal_name
Jpn J Clin Oncoljournal_title
Japanese journal of clinical oncologyauthors
Sakata K,Someya M,Nagakura H,Nakata K,Oouchi A,Takagi M,Hareyama Mdoi
10.1093/jjco/hyn050subject
Has Abstractpub_date
2008-06-01 00:00:00pages
402-7issue
6eissn
0368-2811issn
1465-3621pii
hyn050journal_volume
38pub_type
杂志文章abstract:OBJECTIVE:To characterize surgical invasiveness and morbidity and to verify therapeutic efficacy, we reviewed perioperative and postoperative courses and therapeutic outcomes of patients who underwent retroperitoneal lymph node dissection (RPLND) for testicular germ cell cancers. METHODS:The study included 31 patients...
journal_title:Japanese journal of clinical oncology
pub_type: 杂志文章
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abstract::Irinotecan chloride (CPT-11) is a new semi-synthetic camptothecin analogue which has encouraging antitumor activity against various malignancies. The major and unique toxicity of CPT-11 is diarrhea. Cardiovascular toxicity is rare and has not been found in clinical trials performed in Japan except for a very few cases...
journal_title:Japanese journal of clinical oncology
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abstract::Recent reports of cancers that produce colony-stimulating factors (CSF) and which are associated with leukocytosis indicate that most are granulocyte CSF-producing tumors. A 71-year-old man with metastatic chest wall tumors from large cell lung cancer with marked leukocytosis and eosinophilia was reported. His maximal...
journal_title:Japanese journal of clinical oncology
pub_type: 杂志文章,评审
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abstract::We report a case of amelanotic malignant melanoma of the female urethra. The clinical course was unusually long and complicated by asynchronous resectable metastases to the lung and the brain. The patient died of generalized metastasis in spite of successful resection of the metastatic lesions and post-operative chemo...
journal_title:Japanese journal of clinical oncology
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abstract:OBJECTIVE:Limited by sample size, angiosarcoma was rarely studied. We aimed to investigate the characteristics and prognosis of angiosarcoma in the National Cancer Institute's Surveillance, Epidemiology and End Results database. METHODS:Patients who were diagnosed with primary angiosarcoma from 1973 to 2014 were extra...
journal_title:Japanese journal of clinical oncology
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abstract:Background:Shorter duration of infusion of monoclonal antibody treatments may reduce treatment burden and improve healthcare resource utilization. Methods:This phase II study recruited Japanese patients with previously untreated CD20+ B-cell non-Hodgkin lymphoma. Patients received intravenous obinutuzumab 1000 mg by r...
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pub_type: 杂志文章,多中心研究
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abstract:OBJECTIVE:Higher levels of physical activity have been consistently associated with a decreased risk of colon cancer, but not rectal cancer, in Western populations. The present study systematically evaluated epidemiologic evidence on the association between physical activity and colorectal cancer risk among the Japanes...
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journal_title:Japanese journal of clinical oncology
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doi:
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journal_title:Japanese journal of clinical oncology
pub_type: 杂志文章
doi:10.1093/jjco/hyd048
更新日期:2000-04-01 00:00:00
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更新日期:2019-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1093/jjco/hyn036
更新日期:2008-05-01 00:00:00
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pub_type: 临床试验,杂志文章
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journal_title:Japanese journal of clinical oncology
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