1.The application of circulating tumor cells in the diagnosis and treatment of breast cancer
Journal of International Oncology 2017;44(1):45-48
In recent years,the clinical utility of circulating tumor cells (CTCs)analysis from peripheral blood has undoubtedly become a popular topic in the field of precision medicine.CTCs analysis is a noninvasive,easily obtained and highly repeatable testing approach,and could be carried out in a real-time manner,which has never failed to surprise us with great progression in the detection of early disease,assessing prognosis,treatment response monitoring and individualized therapeutic direction in breast cancer.
2.A cross-sectional study on health management service for hypertension and diabetes, Sichuan province, 2014.
Xuefeng TANG ; Xujing GUAN ; Xianping WU ; Meiyin WANG ; Rong MEI ; Xiuwen JIANG ; Jingjing ZHANG ; Hua LI
Chinese Journal of Preventive Medicine 2015;49(7):591-594
OBJECTIVETo investigate the quantity, quality and effect of health management service project for patients with hypertension and diabetes in basic public health service project of Sichuan province.
METHODS44 health clinics or community health service center, 22 counties and 11 cities was extracted by method of multistage stratified sampling on March, 2014. In each institution we sampled 10 resident health record of hyperpietic and 10 of diabetic. Number of managed patients was recorded to calculate the rate of health management. Telephone survey was used to judge the accuracy and standardability of services the patients received according to the national basic public health service specifications. We compared the satisfaction rate and blood pressure/blood sugar control rate of patients which had accurate record to which had not, and which got normative services to which didn't.
RESULTS33.8% (69 680/206 154) of the hyperpietics and 24.0% (25 562/106 508) of the diabetics were managed. 81.16% (702/865) of the records were with accurate information. 74.36% (522/702) of the patients received normative services. Blood pressure was well controlled in 86.92% (299/344) of the hyperpietics, and FPG was well controlled in 85.46% (288/337) of the diabetics. The satisfaction rate was 94.58% (698/738). The satisfaction rate of patients which had accurate record was 98.69% (677/686), but of which had not was just 40.38% (21/52) (χ² = 320.52, P < 0.001). The satisfaction rate of patients which got normative services was 99.22% (508/512), and of which did not get was 97.13% (169/174) (χ² = 2.92, P = 0.087).
CONCLUSIONThe quality of managed chronic patients was well, and got obvious effect. Measures need to implement for increasing the management rate, accuracy and standardability of health management services for hyperpietic and diabetic.
Blood Glucose ; China ; Community Health Services ; Cross-Sectional Studies ; Diabetes Mellitus ; Disease Management ; Humans ; Hypertension ; United States
3.Antibody-drug conjugates in HER2-positive breast cancer.
Lixi LI ; Di ZHANG ; Binliang LIU ; Dan LV ; Jingtong ZHAI ; Xiuwen GUAN ; Zongbi YI ; Fei MA
Chinese Medical Journal 2021;135(3):261-267
Antibody-drug conjugates (ADCs) combine the high specificity of monoclonal antibodies with the high anti-tumor activity of small molecular cytotoxic payloads. The anti-tumor activity of ADCs is mainly achieved by the direct blocking of the receptor by monoclonal antibodies, direct action and bystander effect of cytotoxic drugs, and antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity. ADCs have been used in adjuvant therapy and rescue treatment of human epidermal receptor 2 (HER2)-positive breast cancer, greatly improving the prognosis of breast cancer patients. Several ongoing clinical trials of ADC for breast cancer and other solid tumors proved the potential of ADCs will provide more promising treatment options for patients with malignant tumors. This review introduces the mechanism and latest clinical progress of ADC drugs approved for HER2-positive breast cancer to guide clinical practice and conduct research.
Antineoplastic Agents/therapeutic use*
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Antineoplastic Agents, Immunological/therapeutic use*
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Breast Neoplasms/drug therapy*
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Female
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Humans
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Immunoconjugates/therapeutic use*
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Receptor, ErbB-2
4. The landscape of palliative systemic therapy and overall survival analysis of elderly patients with advanced breast cancer in China National Cancer Center
Xiuwen GUAN ; Fei MA ; Binghe XU
Journal of International Oncology 2019;46(11):657-661
Objective:
To compare the survival data of elderly advanced breast cancer (ABC) patients in China National Cancer Center with USA and summarize the therapeutic characteristics in elderly ABC patients
5.Genetic susceptibility genes and clinical features of early-onset breast cancer
Lixi LI ; Tingyu WEN ; Xiuwen GUAN ; Jingtong ZHAI ; Fei MA
Journal of International Oncology 2022;49(4):206-209
Objective:To explore the germline mutation frequency of genetic susceptibility genes and clinical characteristics in early-onset breast cancer (onset age ≤35 years) in China.Methods:Clinical information and peripheral blood of 150 patients aged 35 and younger diagnosed with breast cancer in Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College from January 1, 2015 to December 31, 2019 were collected. Then DNA was extracted to detect germline mutations in breast cancer susceptibility gene (BRCA) 1, BRCA2, ataxia telangiectasia mutated (ATM) , partner and localizer of BRCA2 (PALB2) , tumor protein 53 (TP53) and cell cycle checkpoint kinase 2 (CHEK2) genes. Mutations were interpreted as pathogenic, likely pathogenic, uncertain significance, likely benign and benign according to the classification criteria and guidelines for genetic variation. Patients were divided into mutation group ( n=18) and non-mutation group ( n=132) according to the presence or absence of pathogenic or probable pathogenic germline mutations, and the χ2 test was used to analyze the relationships between genetic susceptibility gene mutations and clinicopathological characteristics. Results:Eighteen pathogenic or likely pathogenic germline mutations were detected in 150 patients with early-onset breast cancer, for an overall mutation frequency of 12.0%. Among them, there were 8 (5.3%) BRCA2 mutation, 7 (4.7%) BRCA1 mutation, 1 (0.7%) PALB2 mutation, and 2 (1.3%) TP53 mutation. There were no pathogenic or likely pathogenic variants in ATM and CHEK2 genes. The mutation type was dominated by frameshift mutation (9/18, 50.0%) , followed by nonsense mutation (7/18, 38.9%) , missense mutation (1/18, 5.6%) and splice acceptor mutation (1/18, 5.6%) . Among the molecular subtypes of 18 mutation carriers, 9 cases were Luminal B, 6 cases were triple negative breast cancer (TNBC) , 2 cases were Luminal A, and only 1 case was human epidermal growth factor receptor-2 (HER-2) amplification. Among them, 8 BRCA2 mutation carriers were Luminal type, and 6 of 7 BRCA1 mutation carriers were TNBC type. There were no statistical differences in family history of breast cancer ( P=0.343) , estrogen receptor (ER) status ( χ2=0.16, P=0.688) , HER-2 status ( χ2=2.89, P=0.089) , molecular subtype ( χ2=1.99, P=0.575) , and initial diagnosis TNM stage ( χ2=2.49, P=0.115) between the mutation group and the non-mutation group. Conclusion:The patients with early-onset breast cancer have high frequency of germline mutations. It is recommended that patients with early-onset breast cancer undergo genetic counseling and multigene testing.
6.Results of randomized, multicenter, double-blind phase III trial of rh-endostatin (YH-16) in treatment of advanced non-small cell lung cancer patients.
Jinwan WANG ; Yan SUN ; Yongyu LIU ; Qitao YU ; Yiping ZHANG ; Kai LI ; Yunzhong ZHU ; Qinghua ZHOU ; Mei HOU ; Zhongzhen GUAN ; Weilian LI ; Wu ZHUANG ; Donglin WANG ; Houjie LIANG ; Fengzhan QIN ; Huishan LU ; Xiaoqing LIU ; Hong SUN ; Yanjun ZHANG ; Jiejun WANG ; Suxia LUO ; Ruihe YANG ; Yuanrong TU ; Xiuwen WANG ; Shuping SONG ; Jingmin ZHOU ; Lifen YOU ; Jing WANG ; Chen YAO
Chinese Journal of Lung Cancer 2005;8(4):283-290
BACKGROUNDEndostar™ (rh-endostatin, YH-16) is a new recombinant human endostatin developed by Medgenn Bioengineering Co. Ltd., Yantai, Shandong, P.R.China. Pre-clinical study indicated that YH-16 could inhibit tumor endothelial cell proliferation, angiogenesis and tumor growth. Phase I and phase II studies revealed that YH-16 was effective as single agent with good tolerance in clinical use.The current study was to compare the response rate , median ti me to progression (TTP) ,clinical benefit andsafety in patients with advanced non-small cell lung cancer ( NSCLC) , who were treated with YH-16 plus vi-norelbine and cisplatin (NP) or placebo plus NP.
METHODSFour hundred and ninety-three histologically or cy-tologically confirmed stage IIIB and IV NSCLC patients , withlife expectancy > 3 months and ECOG perform-ance status 0-2 , were enrolledin a randomized ,double-blind ,placebo-controlled , multicenter trial ,either trialgroup : NP plus YH-16 (vinorelbine 25 mg/m² on day 1 and day 5 ,cisplatin 30mg/m² on days 2 to 4 , YH-167.5mg/m² on days 1 to 14) or control group : NP plus placebo (vinorelbine 25 mg/m² on day 1 and day 5 ,cis-platin 30 mg/m² on days 2 to 4 ,0.9% sodium-chloride 3 .75 ml on days 1 to 14) every 3 weeks for 2-6 cycles .The trial endpoints included response rate ,clinical benefit rate ,time to progression,quality of life and safety .
RESULTSOf 486 assessable patients , overall response rate was 35.4% in trial group and 19.5% in controlgroup (P=0 .0003) . The median TTP was 6 .3 months and 3 .6 months for trial group and control group respectively (P < 0 .001) . The clinical benefit rate was 73 .3 %in trial group and 64.0% in control group (P=0 .035) .In untreated patients of trial group and control group ,the response rate was 40 .0% and 23.9%(P=0 .003) ,the clinical benefit rate was 76 .5 % and 65 .0 % (P=0 .023) ,the median TTP was 6 .6 and 3 .7months (P=0 .0000) ,respectively .In pretreated patients of trial group and control group ,the response ratewas 23.9% and 8.5%(P=0 .034) ,the clinical benefit rate was 65.2% and 61.7%(P=0 .68) ,the median TTP was 5 .7 and 3 .2 months (P=0 .0002) ,respectively . The relief rate of clinical symptoms in trial groupwas higher than that of those in control group ,but no significance existed (P > 0 .05) . The score of quality oflife in trial group was significantly higher than that in control group (P=0 .0155) after treatment . There were no significant differences in incidence of hematologic and non-hematologic toxicity , moderate and severe sideeffects betweentrial group and control group .
CONCLUSIONSThe addition of YH-16 to NP regimen results in significantly and clinically meaningful improvement in response rate , median time to tumor progression,and clinical benefit rate compared with NP alone in advanced NSCLC patients . YH-16 in combination with chemotherapy shows a synergic activity and a favorable toxic profile in advanced cancer patients .
7.Multi-omics fusion analysis models with machine learning predict survival of HER2-negative metastatic breast cancer: a multicenter prospective observational study.
Jiani WANG ; Yuwei LIU ; Renzhi ZHANG ; Zhenyu LIU ; Zongbi YI ; Xiuwen GUAN ; Xinming ZHAO ; Jingying JIANG ; Jie TIAN ; Fei MA
Chinese Medical Journal 2023;136(7):863-865