Clinical Assessment Of Tumor Angiogenesis And Its Predictive Value For Chemotherapy Responses Of Colorectal Metastatic Hepatic Tumors.
JOURNAL OF CLINICAL ONCOLOGY(2019)
摘要
e14505 Background: The treatment of colorectal cancer (CRC) with metastasis is now widely accepted to be systemic chemotherapy of 5-FU base chemotherapy (FOLFOX or FOLFILI) in combination with molecular antibody. The objective of this study was to determine the significance of tumor angiogenesis in metastatic hepatic tumors in relation to the response of systemic chemotherapy. Methods: A total of 48 consecutive CRC patients with hepatic metastasis who had been treated with or without hepatic resection were retrospectively reviewed, and factors, such as metastatic tumor angiogenesis and chemotherapy response, were analyzed. Tumor angiogenesis in association with ring-enhancement (RE) on computed tomography (CT) was also microscopically evaluated by microvessel counting (MVD) in sections stained immunochemically with CD34. Results: The overall response rate after 6 courses of first-line chemotherapy for the liver metastasis with RE on CT was 64% (23/36), whereas the response rate without RE was 25% (3/12), which was significantly different. The survival rate of patients with or without liver resection of all RE-positive tumors was not different, but the survival rate of patients with liver resection was longer than that of patients without liver resection for all RE-negative tumors. Microscopic examination revealed that peripheral RE on CT of the metastatic tumor was associated with tumor angiogenesis by MVD. Conclusions: The peripheral RE on CT of the metastatic hepatic tumor was associated with tumor angiogenesis and may predict chemotherapy response. A combination of liver resection with chemotherapy improves the survival of patients who have multiple hepatic metastasis.
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关键词
colorectal metastatic hepatic tumors,tumor angiogenesis,chemotherapy responses
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