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Treatment outcomes for different subgroups of nasopharyngeal carcinoma patients treated with intensity-modulated radiation therapy

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Chinese Journal of cancer 2011年第8期30卷 565-573页

作者： Sheng-Fa Su 1,2,3,Fei Han 1,2,Chong Zhao 1,2,Ying Huang 1,2,Chun-Yan Chen 1,2,Wei-Wei Xiao 1,2,Jia-Xin Li 1,2 and Tai-Xiang Lu 1,2 1 State Key Laboratory of oncology in South china,guangzhou,guangdong 510060,p.r.china 2 department of radiation oncology,sun yat-sen university cancer center,guangzhou,guangdong 510060,p.r.china 3 department of oncology,Guiyang Medical College Hospital,Tumor Hospital of Guizhou,Guiyang,Guizhou 550003,p.r.china. State Key Laboratory of oncology in South china Guangzhou Guangdong 510060 P. R. China.

Although many studies have investigated intensity-modulated radiation therapy (IMrT) for nasopharyngeal carcinoma (NpC),sample sizes in the reported studies are usually small and different in outcomes in different T and N subgroups are seldom ***,we evaluated the outcomes of NpC patients treated with IMrT and further explored treatment strategy to improve such *** collected clinical data of 865 NpC patients treated with IMrT alone or in combination with chemotherapy,and classified all cases into the following prognostic categories according to different TNM stages:early stage group (T1-2N0-1M0),advanced local disease group (T3-4N0-1M0),advanced nodal disease group (T1-2N2-3M0),and advanced locoregional disease group (T3-4N2-3M0).The 5-year overall survival (OS),local relapse-free survival (LrFS),and distant metastases-free survival (DMFS) were 83.0%,90.4%,and 84.0%,*** early disease group had the lowest treatment failure rate,with a 5-year OS of 95.6%.The advanced local disease group and advanced nodal disease group had similar failure pattern and treatment outcomes as well as similar hazard ratios for death (4.230 and 4.625,respectively).The advanced locoregional disease group had the highest incidence of relapse and death,with a 5-year DMFS and OS of 62.3% and 62.2%,respectively,and a hazard ratio for death of *** with IMrT alone,IMrT in combination with chemotherapy provided no significant benefit to locoregionally advanced *** results suggest that the decision of treatment strategy for NpC patients should consider combinations of T and N stages,and that IMrT alone for early stage NpC patients can produce satisfactory ***,for advanced local,nodal,and locoregional disease groups,a combination of chemotherapy and radiotherapy is recommended.

关键词：放射治疗强度调制鼻咽癌患者调控样本大小临床资料结合治疗

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Antiangiogenic therapy:a novel approach to overcome tumor hypoxia

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Chinese Journal of cancer 2010年第8期29卷 715-720页

作者： Fang peng1,2, Ming Chen1,2 1 State Key Laboratory of oncology in South china, guangzhou, guangdong 510060, p. r. china 2 department of radiation oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china department of radiation oncology Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060

Hypoxia is a common phenomenon in solid tumors. resistance of hypoxic tumor cells to radiation is a significant reason of failure in the local control of tumors. The growth and metastasis of solid tumors rely on blood vessels. Antiangiogenic agents mainly target tumor blood vessels, and radiation therapy mainly targets tumor cells. Combination of antiangiogenic treatment and radiation exhibits synergistic effect, which improves the response of tumors to radiation therapy. The mechanisms of interaction between antiangiogenic agents and ionizing radiation are complex and involve interactions between tumor cells and tumor microenvironment, including tumor oxygenation, stroma, and vasculature. The original mechanism of antiangiogenesis is to induce ischemia and hypoxia in tumors, thereby, "starve" the tumors. However, recently, emerging data suggest that antiangiogenic agents could reduce the proportion of hypoxic cells through normalizing tumor vasculature, decreasing oxygen consumption, and other mechanisms. The use of antiangiogenic agents provides a new approach to overcome the hypoxia problem, and ultimately improves the efficacy of radiation therapy. In this review, we discuss tumor hypoxia, tumor angiogenesis and its regulation, mechanisms of antiangiogenic therapy combined with radiation therapy, and how antiangiogenic therapy overcomes tumor hypoxia.

关键词：抗血管生成肿瘤细胞抗缺氧疗法放射治疗电离辐射肿瘤血管生成相互作用

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The results and prognosis of different treatment modalities for solitary metastatic lung tumor from nasopharyngeal carcinoma:a retrospective study of 105 cases

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Chinese Journal of cancer 2010年第9期29卷 787-795页

作者： Jun Ma1,2, Zhe-Sheng Wen1,2, peng Lin1,2, Xin Wang1,2, Fang-Yun Xie1,3 1 State Key Laboratory of oncology in South china, guangzhou, guangdong 510060, p.r.china 2 department of Thoracic oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p.r.china 3 department of radiation oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p.r.china department of Thoracic Surgery, Shanxi provincial people’s Hospital, Taiyuan, Shanxi 030012, p.r.china department of Thoracic oncology Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060 department of radiation oncology Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060

Background and Objective:Nasopharyngeal carcinoma (NpC) is known for its propensity for distant *** metastasis is one of the most important causes of death for patients with *** metastatic lung tumor from NpC is a distinctive group associated with a better *** study was to find a more effective treatment modality and prognostic factors for the ***:Clinical data of 105 cases of solitary metastatic lung tumor from NpC were retrospectively *** rate was calculated by the Kaplan-Meier *** difference of survival between the patients treated by different modalities was evaluated by the log-rank *** Cox univariate and multivariate analyses of gender, age, pathologic type, stage, adjuvant chemotherapy, evaluation of treatment for NpC, disease-free interval, size of metastatic tumor, pulmonary hilar and/or mediastinal lymph node metastasis, treatment modalities, recurrent distant metastases and/or relapse of NpC were ***:The local control rate was 53.8% in chemotherapy group, 88.0% in radiotherapy +/-chemotherapy group, and 96.4% in operation +/-chemotherapy group (ppromising progression-free survival (pFS) and overall survival (OS) were obtained with operation +/-chemotherapy and followed by radiotherapy +/-*** of them showed much better efficacy than chemotherapy (priate analysis showed that recurrent distant metastases and/or relapse of NpC affected the survival (Or=2.087, 95% CI=1.277-3.410, p=0.003).The T stage of NpC, size of metastatic tumor, hilar and/or mediastinal lymph node metastasis, and the treatment modality were independent prognostic ***:Operation +/-chemotherapy and radiotherapy +/-chemotherapy are better treatment of solitary metastatic lung tumor from NpC, which could improve the local control and prolong the pFS and *** is recommended for patients with higher T stage of NpC, size of metastatic tu

关键词：治疗方式鼻咽癌预后孤立全国人民代表大会肺疗效评价多因素分析

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percutaneous radiofrequency ablation approach through the spleen:initial case report for pancreatic tail gastrinoma

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Chinese Journal of cancer 2010年第9期29卷 836-841页

作者： pei-Hong Wu1,2, Chang-Chuan pan1,2, Zi-Lin Huang1,2, Wang Li1,2, Ming Zhao1,2, Zhi-Wei Zhou1,3 1 State Key Laboratory of oncology in South china, guangzhou, guangdong 510060, p.r.china 2 department of Medical Imaging & Interventional radiology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p.r.china 3 department of Abdominal oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p.r.china department of Medical Imaging& Interventional radiology Sun Yat-s en University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060 department of Abdominal oncology Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060

Gastrinoma has a low incidence, and the pancreas-originated gastrinoma is *** gastrinoma patients with liver metastases have poor prognosis and short *** treatment to reduce the tumor burden helps to improve symptoms and slows down tumor progression for patients with unresectable *** report a case of pancreatic tail gastrinoma with unresectable liver *** patient received a comprehensive minimally invasive interventional treatment, that is, chemoembolization and radiofrequency ablation for liver metastases, and percutaneous transplenic radiofrequency ablation combined with radioactive 125I seed implantation for pancreatic tail *** patient was followed up for more than 20 months, and showed no clear evidence of tumor *** explored the safety and feasibility of percutaneous transplenic radiofrequency ablation for unresectable pancreatic tail *** transplenic approach allow more indications for minimally invasive therapy and provides a new treatment option not only for patients with unresectable pancreatic tail tumor but also for patients refusing surgery.

关键词：射频消融胃泌素病例报告尾部局部治疗手术切除肿瘤病介入治疗

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Expression of calreticulin is associated with infiltration of T-cells in stage ⅢB colon cancer

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World Journal of Gastroenterology 2010年第19期16卷 2428-2434页

作者： rui-Qing peng, Ya Ding, Xing Zhang, Yi-Xin Zeng, Xiao- Shi Zhang, State Key Laboratory of oncology in South china, Biotherapy center, cancer center, sun yat-sen university, 651 Dongfeng r E, guangzhou 510060, guangdong province, china Ying-Bo Chen, Zhi-Wei Zhou, State Key Laboratory of oncology in South china, department of Gastric and pancreatic oncology, cancer center, sun yat-sen university, 651 Dongfeng r E, guangzhou 510060, guangdong province, china rong Zhang, State Key Laboratory of oncology in South china, department of Endoscopy, cancer center, sun yat-sen university, 651 Dongfeng r E, guangzhou 510060, guangdong province, china Xing-Juan Yu, Yi-Xin Zeng, State Key Laboratory of oncology in South china, department of Experimental research, cancer center, sun yat-sen university, 651 Dongfeng r E, guangzhou 510060, guangdong province, china State Key Laboratory of oncology in South china Biotherapy Center Sun Yat-sen University 651 Dongfeng R E Guangzhou 510060 Guangdong Province China.

AIM: To investigate the correlation between expression of calreticulin and infiltration of lymphocytes in stage ⅢB colon cancer. METHODS: Sixty-eight pathologically-confirmed speci-mens were obtained from stage ⅢB (T3N1M0) colon cancer patients who underwent radical resection between January 1999 and May 2002 at the cancer center of sun yat-sen university, guangzhou, china. Immuno-histochemical analysis was performed to show infiltration of lymphocytes and expression of calreticulin in colon cancer. Association between calreticulin expression, infiltration of lymphocytes, and 5-year survival rate of patients was assessed. rESULTS: The expression level of calreticulin was lower in cancer nest than in its adjacent normal epithelium since 61.8% (42/68) of the samples were stained with calreticulin in colon cancer. The expression of calreticulin in colon cancer was associated with the infi ltration of CD45rO+ cells rather than with that of CD3+ cells. In addition, the stronger expression of calreticulin and the higher infiltration of CD3+ and CD45rO+ cells in colon cancer were associated with the higher 5-year survival rate of patients. CONCLUSION: Expression of calreticulin is associated with infiltration of T-cells, which implies that a low expression level of molecular marker may represent a new mechanism underlying immune escape in colon cancer.

关键词： Calreticulin Tumor-infiltrating lymphocyte Colon cancer Immune escape

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Expression of hepatitis B virus surface antigen in 120 Hodgkin's lymphoma patients

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Chinese Journal of cancer 2010年第8期29卷 735-740页

作者： Miao-Zhen Qiu1,2, Dan-Yun ruan1,2, Zhi-Qiang Wang1,2, Hui-Yan Luo1,2, Kai-Yuan Teng1,2, Zhong-Jun Xia1,3, Yue Lu1,3, Hui-Qiang Huang1,2, Wen-Qi Jiang1,2, rui-Hua Xu1,2 1 State Key Laboratory of oncology in South china, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china 2 department of Medical oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china 3 department of Hematology oncology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china sun yat-sen university cancer center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060

Background and Objective: Little is known about the incidence of hepatitis B virus (HBV) infection in Hodgkin's lymphoma patients. This study was to evaluate the impact of HBV infection on the survival of Hodgkin's lymphoma patient. Methods: Clinical data of 120 Hodgkin's lymphoma patients treated at the sun yat-sen university cancer center between January 2004 and October 2007 were collected. The impact of prognostic factors including HBV infection on survival was examined by univariate and multivariate analyses. A log-rank test was used for univariate analysis and the Cox proportional hazards regression model was used for multivariate analysis. results: Of the 120 patients, 18 (15.0%) were hepatitis B virus surface antigen (HBsAg)-positive. The HBsAg-positive patients had lower 5-year survival rate than did the HBsAg-negative ones (66.9% vs. 91.3%, p = 0.006). When the patients were divided into early-stage (Ⅰ+Ⅱ) and advanced-stage (Ⅲ+Ⅳ) groups, the 5-year survival rate was significantly different between the HBsAg-positive and -negative patients in early-stage group (64.8% vs. 96.0%, p rent in advanced-stage group (75.0% vs. 84.8%, p=0.667). Both univariate and multivariate analyses showed that radiotherapy and HBV infection were independent prognosis factors for the patients with early-stage Hodgkin's lymphoma (p=0.006 and 0.014, respectively). Conclusions: The incidence of HBV infection is similar between Hodgkin's lymphoma patients and normal population. HBV infection is an independent prognosis factor for survival in the patients with early-stage Hodgkin's lymphoma.

关键词：乙肝病毒表面抗原淋巴瘤患者乙肝表面抗原多因素分析金病毒感染肝炎病毒

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Correlation analysis between loss of heterozygosity at chromosome 18q and prognosis in the stage-Ⅱ colon cancer patients

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Chinese Journal of cancer 2010年第8期29卷 761-767页

作者： Wei Wang1,2, Yuan-Fang Li1,2, Xiao-Wei sun1,2, Gong Chen1,3, You-Qing Zhan1,2, Chun-Yu Huang1,2, De-sen Wan1,3, Zhi-Zhong pan1,3, Zhi-Wei Zhou1,2 1 State Key Labortary of oncology in South china, guangzhou, guangdong 510060, p. r. china 2 department of Gasrtic and pancreatic Surgery, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china 3 department of Colorectal Surgery, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china department of Gasrtic and pancreatic Surgery Sun Yat-sen University Cancer Center State Key Labortary of Oncology in South China Guangdong Guangzhou 510060 department of Colorectal Surgery Sun Yat-sen University Cancer Center State Key Labortary of Oncology in South China Guangdong Guangzhou 510060

Background and Objective: Colorectal cancer is one of the most common malignant cancers in the world. Although the clinicopathologic staging is the golden criterion for the prognosis at present, the optimum prognostic criteria for colorectal cancer should be a combination of the clinicopathologic staging and the molecular markers. However, there are currently no molecular markers available for the prognosis of colorectal cancer. Several tumor-suppressor genes associated with colorectal cancer have been mapped at the 18q21-23 region. In this study we detected the frequency of loss of heterozygosity (LOH) at chromosome 18q and investigated the relationship between LOH and clinicopathologic features and its prognostic value for patients with stage Ⅱ colon cancer. Methods: A total of 106 samples of tumor tissues and corresponding normal mucosa from patients with sporadic stage-Ⅱ colon cancer were included in this study. All the samples were formalin-fixed and paraffin-embedded. DNA was extracted from tumor tissues and LOH of D18S474, D18S55, D18S58, D18S61 and D18S64 at chromosome 18q was analyzed using polymerase chain reaction (pCr), polyacrylamide gel-electrophoresis, and DNA sequencing method. Multivariate analysis for association between LOH and prognosis in colon cancer patients was performed with Cox proportional hazards regression model. results: The median follow-up time was 68 months. For 106 patients, 5-year survival rate was 83.6%, which was associated with age and gross tumor type (p = 0.011 and 0.034, respectively). Among 102 patients who were eligible for LOH information, the overall frequency of LOH is 49.0% (50/102), and that of LOH at 5 microsatellite loci of D18S474, D18S55, D18S58, D18S61, and D18S64 was 30.2% (26/86), 23.4% (18/77), 28.6% (20/70), 35.0% (28/80), and 20.8%(15/72), respectively. The occurrence of LOH was significantly associated with tumor location and histopathologic grade (p = 0.023, 0.016 and 0.005, respectively). LOH was more freq

关键词：大肠癌染色体杂合性预后患者相关分析聚丙烯酰胺凝胶电泳临床病理

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Impact of KrAS mutation and pTEN expression on cetuximab-treated colorectal cancer

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World Journal of Gastroenterology 2010年第46期16卷 5881-5888页

作者： Fang-Hua Li,Zhuang-Hua Li,Hui-Yan Luo,Miao-Zhen Qiu,Yu-Hong Li,rui-Hua Xu,State Key Laboratory of oncology in Southern china,department of Medical oncology,sun yatsen university cancer center,guangzhou 510060,guangdong province,china Fang-Hua Li,department of Medical oncology,Shengli Oil Field Central Hospital,Dongying 257034,Shandong province,china Lin Shen,department of GI oncology,peking university School of oncology,Beijing cancer Hospital and Institute,Beijing 100142,china Hui-Zhong Zhang,State Key Laboratory of oncology in Southern china,department of pathology,sun yat-sen university cancer center,guangzhou 510060,guangdong province,china State Key Laboratory of oncology in Southern china Department of Medical Oncology Sun Yat-Sen University Cancer Center Guangzhou 510060 Guangdong Province China.

AIM:To investigate the prognostic value of KrAS mutation,and phosphatase and tensin (pTEN) expression in Chinese metastatic colorectal cancer metastatic colorectal cancer (mCrC) patients treated with ***:Ninety Chinese mCrC patients treated with cetuximab were evaluated for KrAS mutation and pTEN protein expression by DNA sequencing of codons 12 and 13 and immunohistochemistry,*** then selected 61 patients treated with cetuximab,either in combination with chemotherapy,or alone as a second-line or third-line regimen to assess whether KrAS mutation or pTEN protein expression is associated with the response and the survival time of mCrC patients treated with ***:KrAS mutation was found in 30 (33.3%) tumor samples from the 90 patients,and positive pTEN expression was detected in 58 (64.4%) of the 90 *** the 61 patients who were treated with cetuximab as a second-line or third-line regimen,the resistance to cetuximab was found in 22 patients with KrAS mutation and in 39 patients without KrAS mutation,with a response rate of 4.5% and 46.1% respectively (p=0.001),a shorter median progression-free survival (pFS) time of 14 ± 1.3 wk and 32 ± 2.5 wk respectively (p rall survival (OS) time of 11 ± 1.2 mo and 19 ± 1.8 mo respectively (p 24 patients with negative pTEN expression and in 37 patients with positive pTEN expression respectively (p responsive rate of 4.2% and 48.6% respectively,a shorter median pFS survival time of 17 ± 2.0 wk and 28 ± 1.9 wk respectively (p=0.07),and a median OS time of 11 ± 1.3 mo and 18 ± 1.9 mo respectively (p=0.004).Combined KrAS mutation and pTEN expression analysis showed that the pFS and OS time of patients with two favorable prognostic factors were longer than those of patients with one favorable prognostic factor or no favorable prognostic factor (p rAS mutation and pTEN protein expression are significantly corr

关键词： Cetuximab Metastatic colorectal cancer KrAS mutation phosphatase and tensin protein expression

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A case report of primary small cell carcinoma of the breast and review of the literature

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Chinese Journal of cancer 2012年第7期31卷 354-358页

作者： Qi-Dong Ge1,2, Ning Lv1,2, Yun Cao1,3, Xi Wang1,2, Jun Tang1,2, Ze-Ming Xie1,2, Xiang-Sheng Xiao1,2, peng Liu1,2, Xiao-Ming Xie1,2 and Wei-Dong Wei1,2 Authors’ Affiliations: 1State Key Laboratory of oncology in South china, guangzhou, guangdong 510060, p. r. china 2department of Breast oncology, 3department of pathology, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china. department of Breast oncology Sun Yat-sen University Cancer Center Guangzhou Guangdong People's Republic of China. weiweid@***

primary small cell carcinoma (SCC) of the breast, an exceedingly rare and aggressive tumor, is often characterized by rapid progression and poor prognosis. We report a case of primary SCC of the breast that was diagnosed through pathologic and immunohistochemical examinations. Computed tomography (CT) scans failed to reveal a non-mammary primary site. Due to the scant number of relevant case summaries, this type of tumor is proved to be a diagnostic and therapeutic challenge. Therefore, we also reviewed relevant literature to share expertise in diagnosis, clinicopathologic characteristics, treatment, and prognosis of this type of tumor. Future studies with more cases are required to define more appropriate treatment indications for this disease.

关键词：乳腺癌细胞文献计算机断层扫描原发性复习病理特征免疫组化

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prognosis of 980 patients with gastric cancer after surgical resection

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Chinese Journal of cancer 2010年第11期29卷 923-930页

作者： Wei Wang1,2, Yuan-Fang Li1,2, Xiao-Wei sun1,2, Ying-Bo Chen1,2, Wei Li1,2, Da-Zhi Xu1,2, Xuan-Xiang Guan1,2, Chun-Yu Huang1,2, You-Qing Zhan1,2, Zhi-Wei Zhou1,2 1 State Key Laboratory of oncology in South china, guangzhou, guangdong 510060, p. r. china 2 department of Gastric and pancreatic Surgery, sun yat-sen university cancer center, guangzhou, guangdong 510060, p. r. china department of Gastric and pancreatic Surgery Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South China Guangdong Guangzhou 510060

Background and Objective: Although surgery is the only possible means to cure gastric cancer, the prognosis is often discrepant. The American Joint Committee on cancer/International Union against cancer (AJCC/UICC) published the TNM classification of Malignant Tumors (seventh edition) for gastric cancer recently. This study aimed to use this new edition staging system to investigate the prognostic factors for gastric cancer. Methods: The clinicopathologic data of 980 patients with gastric cancer treated by surgical resection in our hospital between January 2000 and December 2006 were analyzed retrospectively. The overall survival rate was determined by using Kaplan-Meier method and log-rank test was used to determine significance. The prognosis was analyzed using univariate analysis and multivariate analysis with the Cox proportional hazards model. The 6th and 7th edition AJCC/UICC TNM staging systems were used to compare the survival outcomes for the cohort of patients. results: The overall 1-, 3-, 5-year survival rates for the whole group were 82.5%, 58.7%, and 52.6%. The 5-year survival rates for patients with pTNM stage I, II, III, and IV disease classified by the 7th edition staging system were 93.2%, 72.4%, 39.1%, and 5.2%, respectively. In both univariate analysis and Cox multivariate analysis, age, tumor site, tumor size, histological type, resection type, radical resection, lymphatic/venous invasion, depth of invasion, nodal status, metastasis, retrieved lymph nodes, metastatic lymph node ratio, and adjuvant chemotherapy were prognostic factors with these patients. Conclusion: Compared with the 6th edition system, the new edition of TNM staging system for gastric cancer can accurately predict the survival after operation.

关键词：手术切除胃癌预后多因素分析单因素分析恶性肿瘤 TNM 淋巴结

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