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Feng D, Zhang F, Cai J, Zhang Y, Yan H, Yang Y, Zhong H, Ye H. Functional testing is a complementary tool for the diagnosis of vaginitis. BMC Womens Health 2024; 24:224. [PMID: 38582823 PMCID: PMC10998416 DOI: 10.1186/s12905-024-03035-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 03/18/2024] [Indexed: 04/08/2024] Open
Abstract
OBJECTIVE Vaginal microbiota evaluation is a methodology widely used in China to diagnose various vaginal inflammatory diseases. Although vaginal microbiota evaluation has many advantages, it is time-consuming and requires highly skilled and experienced operators. Here, we investigated a six-index functional test that analyzed pH, hydrogen peroxide (H2O2), leukocyte esterase (LEU), sialidase (SNA), β-glucuronidase (GUS), and acetylglucossidase (NAG), and determined its diagnostic value by comparing it with morphological tests of vaginal microbiota. MATERIALS AND METHODS The research was conducted using data extracted from the Laboratory Information System of Women and Children's Hospital. A total of 4902 subjects, ranging in age from 35.4 ± 9.7 years, were analyzed. During the consultation, a minimum of two vaginal swab specimens per patient were collected for both functional and morphological testing. Fisher's exact was used to analyze data using SPSS. RESULTS Of the 4,902 patients, 2,454 were considered to have normal Lactobacillus morphotypes and 3,334 were considered to have normal dominant microbiota. The sensitivity and specificity of H2O2-indicating Lactobacillus morphotypes were 91.3% and 25.28%, respectively, while those of pH-indicating Lactobacillus morphotypes were 88.09% and 59.52%, respectively. The sensitivity and specificity of H2O2-indicating dominant microbiota were 91.3% and 25.3%, respectively, while those of pH-indicating dominant microbiota were 86.27% and 64.45%, respectively. The sensitivity and specificity of NAG for vulvovaginal candidiasis were 40.64% and 84.8%, respectively. For aerobic vaginitis, GUS sensitivity was low at 0.52%, while its specificity was high at 99.93%; the LEU sensitivity and specificity values were 94.73% and 27.49%, respectively. Finally, SNA sensitivity and specificity for bacterial vaginosis were 80.72% and 96.78%, respectively. CONCLUSION Functional tests (pH, SNA, H2O2, LEU) showed satisfactory sensitivity for the detection of vaginal inflammatory diseases. However, these tests lacked specificity, making it difficult to accurately identify specific pathologies. By contrast, NAG and GUS showed excellent specificity in identifying vaginal inflammatory diseases, but their sensitivity was limited. Therefore, functional tests alone are not sufficient to diagnose various vaginal inflammatory diseases. When functional and morphological tests are inconsistent, morphological tests are currently considered the preferred reference method.
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Affiliation(s)
- Danqin Feng
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Fuhui Zhang
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Jianguo Cai
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yansheng Zhang
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Honghong Yan
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yichi Yang
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Hongxiu Zhong
- Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
| | - Huiming Ye
- Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
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Wu D, Li Y, Xu P, Fang Q, Cao F, Lin H, Li Y, Su Y, Lu L, Chen L, Li Y, Zhao Z, Hong X, Li G, Tian Y, Sun J, Yan H, Fan Y, Zhang X, Li Z, Liu X. Neoadjuvant chemo-immunotherapy with camrelizumab plus nab-paclitaxel and cisplatin in resectable locally advanced squamous cell carcinoma of the head and neck: a pilot phase II trial. Nat Commun 2024; 15:2177. [PMID: 38467604 PMCID: PMC10928200 DOI: 10.1038/s41467-024-46444-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 02/28/2024] [Indexed: 03/13/2024] Open
Abstract
Neoadjuvant chemoimmunotherapy has emerged as a potential treatment option for resectable head and neck squamous cell carcinoma (HNSCC). In this single-arm phase II trial (NCT04826679), patients with resectable locally advanced HNSCC (T2‒T4, N0‒N3b, M0) received neoadjuvant chemoimmunotherapy with camrelizumab (200 mg), nab-paclitaxel (260 mg/m2), and cisplatin (60 mg/m2) intravenously on day one of each three-week cycle for three cycles. The primary endpoint was the objective response rate (ORR). Secondary endpoints included pathologic complete response (pCR), major pathologic response (MPR), two-year progression-free survival rate, two-year overall survival rate, and toxicities. Here, we report the perioperative outcomes; survival outcomes were not mature at the time of data analysis. Between April 19, 2021 and March 17, 2022, 48 patients were enrolled and received neoadjuvant therapy, 27 of whom proceeded to surgical resection and remaining 21 received non-surgical therapy. The ORR was 89.6% (95% CI: 80.9, 98.2) among 48 patients who completed neoadjuvant therapy. Of the 27 patients who underwent surgery, 17 (63.0%, 95% CI: 44.7, 81.2) achieved a MPR or pCR, with a pCR rate of 55.6% (95% CI: 36.8, 74.3). Treatment-related adverse events of grade 3 or 4 occurred in two patients. This study meets the primary endpoint showing potential efficacy of neoadjuvant camrelizumab plus nab-paclitaxel and cisplatin, with an acceptable safety profile, in patients with resectable locally advanced HNSCC.
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Affiliation(s)
- Di Wu
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yong Li
- Department of Pathology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Pengfei Xu
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Qi Fang
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Fei Cao
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hongsheng Lin
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yin Li
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yong Su
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicin, Guangzhou, China
| | - Lixia Lu
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicin, Guangzhou, China
| | - Lei Chen
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicin, Guangzhou, China
| | - Yizhuo Li
- Department of Radiology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zheng Zhao
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiaoyu Hong
- Nanjing Geneseeq Technology Inc, Nanjing, China
| | - Guohong Li
- Nanjing Geneseeq Technology Inc, Nanjing, China
| | - Yaru Tian
- Jiangsu Hengrui Pharmaceuticals Co., LTD, Shanghai, China
| | - Jinyun Sun
- Jiangsu Hengrui Pharmaceuticals Co., LTD, Shanghai, China
| | - Honghong Yan
- Department of Intensive Care Medicine, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yunyun Fan
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xinrui Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Zhiming Li
- Department of Medical Oncology, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
| | - Xuekui Liu
- Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
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Liao RQ, Li AW, Yan HH, Lin JT, Liu SY, Wang JW, Fang JS, Liu HB, Hou YH, Song C, Yang HF, Li B, Jiang BY, Dong S, Nie Q, Zhong WZ, Wu YL, Yang XN. Deep learning-based growth prediction for sub-solid pulmonary nodules on CT images. Front Oncol 2022; 12:1002953. [PMID: 36313666 PMCID: PMC9597322 DOI: 10.3389/fonc.2022.1002953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Background Estimating the growth of pulmonary sub-solid nodules (SSNs) is crucial to the successful management of them during follow-up periods. The purpose of this study is to (1) investigate the measurement sensitivity of diameter, volume, and mass of SSNs for identifying growth and (2) seek to establish a deep learning-based model to predict the growth of SSNs. Methods A total of 2,523 patients underwent at least 2-year examination records retrospectively collected with sub-solid nodules. A total of 2,358 patients with 3,120 SSNs from the NLST dataset were randomly divided into training and validation sets. Patients from the Yibicom Health Management Center and Guangdong Provincial People’s Hospital were collected as an external test set (165 patients with 213 SSN). Trained models based on LUNA16 and Lndb19 datasets were employed to automatically obtain the diameter, volume, and mass of SSNs. Then, the increase rate in measurements between cancer and non-cancer groups was studied to evaluate the most appropriate way to identify growth-associated lung cancer. Further, according to the selected measurement, all SSNs were classified into two groups: growth and non-growth. Based on the data, the deep learning-based model (SiamModel) and radiomics model were developed and verified. Results The double time of diameter, volume, and mass were 711 vs. 963 days (P = 0.20), 552 vs. 621 days (P = 0.04) and 488 vs. 623 days (P< 0.001) in the cancer and non-cancer groups, respectively. Our proposed SiamModel performed better than the radiomics model in both the NLST validation set and external test set, with an AUC of 0.858 (95% CI 0.786–0.921) and 0.760 (95% CI 0.646–0.857) in the validation set and 0.862 (95% CI 0.789–0.927) and 0.681 (95% CI 0.506–0.841) in the external test set, respectively. Furthermore, our SiamModel could use the data from first-time CT to predict the growth of SSNs, with an AUC of 0.855 (95% CI 0.793–0.908) in the NLST validation set and 0.821 (95% CI 0.725–0.904) in the external test set. Conclusion Mass increase rate can reflect more sensitively the growth of SSNs associated with lung cancer than diameter and volume increase rates. A deep learning-based model has a great potential to predict the growth of SSNs.
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Affiliation(s)
- Ri-qiang Liao
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - An-wei Li
- Guangzhou Shiyuan Electronics Co., Ltd, Guangzhou, China
| | - Hong-hong Yan
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jun-tao Lin
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Si-yang Liu
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jing-wen Wang
- Guangzhou Shiyuan Electronics Co., Ltd, Guangzhou, China
| | | | - Hong-bo Liu
- Guangzhou Shiyuan Electronics Co., Ltd, Guangzhou, China
| | - Yong-he Hou
- Yibicom Health Management Center, CVTE, Guangzhou, China
| | - Chao Song
- Yibicom Health Management Center, CVTE, Guangzhou, China
| | - Hui-fang Yang
- Yibicom Health Management Center, CVTE, Guangzhou, China
| | - Bin Li
- Automation Science and Engineering, South China University of Technology, Guangzhou, China
| | - Ben-yuan Jiang
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Song Dong
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qiang Nie
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wen-zhao Zhong
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yi-long Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Xue-ning Yang, ; Yi-long Wu,
| | - Xue-ning Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Xue-ning Yang, ; Yi-long Wu,
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Lu Y, Xie Z, Luo G, Yan H, Qian HZ, Fu L, Wang B, Huang R, Cao F, Lin H, You R, Tan L, Yu T, Chen M, Li C, Liu X, Lei W, Zou H. Global burden of oropharyngeal cancer attributable to human papillomavirus by anatomical subsite and geographic region. Cancer Epidemiol 2022; 78:102140. [PMID: 35303618 DOI: 10.1016/j.canep.2022.102140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/19/2022] [Accepted: 03/09/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Oropharynx is the anatomical site with the highest human papillomavirus (HPV) infection in head and neck. Many studies on HPV prevalence and p16INK4a positivity in oropharyngeal cancer have been published in recent years. We aimed to update the global burden estimates of oropharyngeal cancer attributable to HPV with the latest data and estimate global burden of tonsillar cancer and base of tongue cancer attributable to HPV by region and country. METHODS We calculated the number of new cancer cases using the Cancer Incidence in Five Continents Volume XI (CI5XI) and country-specific population in 2012 issued by the United Nations. Estimates of HPV prevalence and p16INK4a positivity were obtained from literature search and pooled analyses where necessary. RESULTS Globally the number of oropharyngeal cancer and tonsillar cancer attributable to HPV were 42,000 and 20,000 in 2012, corresponding to AFs of 42.7% and 52.7%. The number of cancer cases attributable to HPV among males was about 4-fold greater than that among females. For both oropharyngeal cancer and tonsillar cancer, AFs were higher in more developed countries. Among HPV positive oropharyngeal cancer cases, 86.7%, 87.8%, and 92.5% could have been prevented by bivalent (2v), quadrivalent (4v), and nonavalent (9v) HPV vaccines. CONCLUSIONS It is worth considering the inclusion of HPV immunization in males, especially in the regions where oropharyngeal cancer is highly prevalent.
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Affiliation(s)
- Yong Lu
- School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China; School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Zongyu Xie
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Ganfeng Luo
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Honghong Yan
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Han-Zhu Qian
- Yale School of Public Health, New Haven, CT, USA
| | - Leiwen Fu
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Bingyi Wang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Ruonan Huang
- School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Fei Cao
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Hongsheng Lin
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Rui You
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong, China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Liqiang Tan
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong, China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Tao Yu
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong, China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Mingyuan Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong, China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Chunwei Li
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuekui Liu
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China.
| | - Wenbin Lei
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Huachun Zou
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China; Kirby Institute, The University of New South Wales, Sydney, NSW, Australia.
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Li H, Zhuang S, Yan H, Wei W, Su Q. Risk Factors of Anastomotic Leakage After Esophagectomy With Intrathoracic Anastomosis. Front Surg 2021; 8:743266. [PMID: 34621781 PMCID: PMC8491789 DOI: 10.3389/fsurg.2021.743266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Abstract
Purpose: Anastomotic leakage is one of the most common complications of esophagectomy, it serves as one of the main causes of postoperative death of esophageal cancer. It is of clinical significance to try to discover the risk factors that cause anastomotic leakage. Methods: This retrospective study was conducted on 1,257 consecutive esophageal cancer patients who underwent esophagectomy with intrathoracic anastomosis from January 2010 to December 2015 at a high volume cancer center. Multivariate Logistic Regression analysis, Spearman rank correlation analysis, Mann-Whitney U test and Kruskal-Wallis test were performed to identify the risk factors to the occurrence of anastomotic leakage and the length of hospital stay. Results: Intrathoracic anastomotic leakage occurred in 98 patients (7.8%). Older patients were more likely to develop anastomotic leakage. Patients with diabetes had a higher leakage rate. Intrathoracic anastomotic leakage, old age as well as comorbidities were associated with longer hospital stay. Conclusion: Our study suggested that old age and diabetes were risk factors to intrathoracic anastomotic leakage. In-hospital stay would be lengthened by intrathoracic anastomotic leakage, old age and comorbidities.
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Affiliation(s)
- Huan Li
- State Key Laboratory of Oncology in South China, Department of ICU, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Shimin Zhuang
- Department of Otolaryngology-Head & Neck Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Honghong Yan
- State Key Laboratory of Oncology in South China, Department of ICU, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wenxiao Wei
- State Key Laboratory of Oncology in South China, Department of ICU, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Quanguan Su
- State Key Laboratory of Oncology in South China, Department of ICU, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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Wang N, Wu D, Long Q, Yan Y, Chen X, Zhao Z, Yan H, Zhang X, Xu M, Deng W, Liu X. Dysregulated YY1/PRMT5 axis promotes the progression and metastasis of laryngeal cancer by targeting Hippo pathway. J Cell Mol Med 2020. [PMCID: PMC7812261 DOI: 10.1111/jcmm.16156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Metastases lead to high mortality in laryngeal cancer, but the regulation of its underlying mechanisms remains elusive. We identified Protein arginine methyltransferase 5 (PRMT5) was significantly up‐regulated in laryngeal cancer tissues, which predicts poor patient prognosis. Functional assays demonstrated that PRMT5 overexpression promoted the invasive capacity and lymph node metastasis in vitro and in vivo. Mechanistic experiments suggested that LATS2 was a downstream target of PRMT5. PRMT5 inhibition increased the expression of LATS2 and YAP phosphorylation in laryngeal cancer cells, thereby promoting laryngeal cancer metastasis. Furthermore, informatics and experimental data confirmed that PRMT5 gene was transcriptionally activated by YY1. Collectively, our results unravelled the important role of PRMT5 in laryngeal cancer tumorigenesis and metastasis. The dysregulation YY1/PRMT5/LATS2/YAP axis may contribute to laryngeal cancer progression; thus, PRMT5 may be a potential therapeutic strategy for patients with laryngeal cancer.
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Affiliation(s)
- Nan Wang
- School of Life Sciences Jiaying University Meizhou China
| | - Di Wu
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Qian Long
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Yue Yan
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Xiaoqi Chen
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Zheng Zhao
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Honghong Yan
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Xinrui Zhang
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Meilan Xu
- School of Life Sciences Jiaying University Meizhou China
| | - Wuguo Deng
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
| | - Xuekui Liu
- Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangzhou China
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Su Q, Li H, Yan H, Wei W, Liao W, Ma G. Prognostic risk factors for respiratory failure after esophagectomy. Transl Cancer Res 2020; 9:6362-6368. [PMID: 35117244 PMCID: PMC8797711 DOI: 10.21037/tcr-20-1326a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 09/02/2020] [Indexed: 11/29/2022]
Abstract
Background Esophagectomy is a high-risk surgical procedure with significant postoperative morbidity and mortality. Respiratory failure is one of the most common complications after esophageal cancer surgery. The purpose of this study was to explore risk factors that affect the recovery of respiratory failure in this kind of patients. Methods Totally 2,360 patients underwent esophagectomies with cervical anastomosis or intrathoracic anastomosis in our center from January 2012 to December 2017. Among them, 130 patients with respiratory failure requiring mechanical ventilation were included in the study. The Spearman’s rank correlation test and Mann-Whitney U test were performed to identify the influential factors for the duration of mechanical ventilation. Results Most patients (81.5%) in this study recovered in the first two weeks of mechanical ventilation, the average duration of mechanical ventilation was 10.1 days. Statistical analysis indicated that lung function test parameters such as FEV1/FVC ratio and RV/TLC ratio could have significant influence on the duration of mechanical ventilation. The abnormally increased FEV1/FVC ratio and RV/TLC ratio could obviously prolong the ventilation duration. Old age, thrombocytopenia, the elevated creatinine, C-reactive protein (CRP) and lactate could also significantly lengthen the duration of mechanical ventilation. Conclusions Abnormally increased FEV1/FVC ratio and RV/TLC ratio as well as old age, thrombocytopenia, elevated creatinine, CRP and blood lactate were found to be risk factors for the recovery of patients with respiratory failure after esophagectomies.
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Affiliation(s)
- Quanguan Su
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Huan Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Honghong Yan
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wenxiao Wei
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wei Liao
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Gang Ma
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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Tang W, Hou Q, Lin J, Li D, Lin J, Chen J, Qiu Z, Chu X, Yang X, Yan H, Wang S, Wu Y, Zhong W. A New Prognostic Index Combines the Metabolic Response and RECIST 1.1 to Evaluate the Therapeutic Response in Patients With Non-Small Cell Lung Cancer. Front Oncol 2020; 10:1503. [PMID: 33014793 PMCID: PMC7493745 DOI: 10.3389/fonc.2020.01503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/14/2020] [Indexed: 11/29/2022] Open
Abstract
Aim: Response Evaluation Criteria in Solid Tumors (RECIST) is occasionally insufficient for evaluation. We proposed a new prognostic index (NPI) that combines the standardized uptake value (SUV), metabolic tumor volume (MTV), and RECIST. Methods: In total, 116 patients with lung cancer who underwent consecutive positron emission tomography-computed tomography prior to and after the initial treatment were included. We formulated the NPI by estimating the hazard ratios of overall survival for ΔMTV, ΔSUVmax, and ΔD (tumor size based on RECIST). Progression-free survival (PFS) and overall survival (OS) were compared between RECIST and the NPI. Results: ROC curve analysis identified two cutoff values based on the NPI (≤ -49.3% and ≥43.4%) to discriminate partial remission (NPR), stable disease (NSD) and progressive disease (NPD). Based on RECIST, survival analysis did not discriminate significantly on either PFS or OS between the PR, SD, and PD groups. However, according to the NPI, PFS and OS differed significantly between the NPR, NSD, and NPD groups (training set: PFS, p = 0.048; OS, p = 0.026; validation set: PFS, p = 0.004; OS, p = 0.023). Moreover, therapeutic response based on NPI was independent prognostic factor for both PFS [NPR as reference, NSD: hazard ratio (HR) 2.04; 95% confidence interval (95% CI) 1.35-3.08; p = 0.001; NPD: HR 6.87; 95% CI 3.03-15.57; p < 0.001] and OS (NPR as reference, NSD: HR 1.64; 95% CI 1.05-2.57; p = 0.031; NPD: HR 3.56; 95% CI 1.59-7.95; p = 0.002). Conclusion: The NPI showed superiority for evaluation of the therapeutic response and survival for patients with non-small cell lung cancer, overcoming the limitations of RECIST.
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Affiliation(s)
- Wenfang Tang
- Department of Cardiothoracic Surgery, Zhongshan People's Hospital, Zhongshan, China
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qingyi Hou
- Nuclear Medicine Department, Weilun PET Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Juntao Lin
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Dongjiang Li
- Nuclear Medicine Department, Weilun PET Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jieshan Lin
- Department of Nephrology, Blood Purifiction Center, Zhongshan People's Hospital, Zhongshan, China
| | - Jinghua Chen
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Guangzhou Twelfth People's Hospital, Guangzhou, China
| | - Zhenbin Qiu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiangpeng Chu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiongwen Yang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Honghong Yan
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shuxia Wang
- Nuclear Medicine Department, Weilun PET Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yilong Wu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wenzhao Zhong
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Liu C, Liao L, Wu G, Yan H, Chen X, Wang C, Zheng X, Zeng Z, Zhao Z, Wu D, Liu X. Radiation-induced second primary squamous cell carcinoma of the oral cavity after radiotherapy for nasopharyngeal carcinoma. Oral Oncol 2020; 109:104863. [PMID: 32604060 DOI: 10.1016/j.oraloncology.2020.104863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/10/2020] [Accepted: 06/14/2020] [Indexed: 12/08/2022]
Abstract
BACKGROUND The increasing occurrence of radiation-induced second primary squamous cell carcinoma of the oral cavity (RISCCO) after radiotherapy for nasopharyngeal carcinoma (NPC) has become a noteworthy complication that can influence long-term survival. This study aimed to analyze the associations of clinicopathologic characteristics with prognostic factors among patients who developed RISCCO after radiotherapy for NPC. METHODS A total of 41,446 NPC patients admitted to Sun Yat-sen University Cancer Center (SYSUCC) between August 1989 and January 2019 were reviewed. Among these patients, 88 RISCCO patients who satisfied the inclusion criteria were included in the study. RESULTS During our study, the incidence of RISCCO after radiotherapy was 0.21% (88/41,446) among NPC patients at SYSUCC. The latency period ranged from 1.0 to 34.0 years (median, 9.0 years), and the latency of RISCCO was notably shorter for patients who received intensity-modulated radiation therapy than that for patients who received conventional radiotherapy using cobalt-60 or 6-MV X-rays (median, 4.0 years vs. 11.0 years, P = 0.013). The 1-, 3-, and 5-year overall survival (OS) rates for the entire cohort of 88 patients were 79.0%, 46.6%, and 35.2%, respectively. The 5-year OS rate for the 79 patients who received treatment was 45.7%, and the 5-year OS rate for the 9 patients who refused treatment was 0%. T classification and surgery were identified as independent prognostic factors associated with a high OS rate. CONCLUSIONS Surgery as the first-choice treatment may improve survival and prognosis. A long-term follow-up is needed for early detection of RISCCO in NPC patients.
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Affiliation(s)
- Chao Liu
- School of Stomatology, Jilin University, Changchun 130041, Jilin, PR China
| | - Lieqiang Liao
- Department of Otolaryngology Head and Neck Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, PR China
| | - Guoying Wu
- Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, PR China
| | - Honghong Yan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Xiaoqi Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Chao Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Xiajing Zheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Ziyi Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Zheng Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Di Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China
| | - Xuekui Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, PR China.
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10
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Wu D, Zhao Z, Wang N, Zhang X, Yan H, Chen X, Fan Y, Liu W, Liu X. Fluorescence imaging-guided multifunctional liposomes for tumor-specific phototherapy for laryngeal carcinoma. Biomater Sci 2020; 8:3443-3453. [PMID: 32412569 DOI: 10.1039/d0bm00249f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Reliable diagnosis and efficient targeted therapy are important and may lead to the effective treatment of laryngeal carcinoma. Multifunctional nano-theranostic agents demonstrate great potential in tumor theranostic applications. Thus, herein, we report novel targeting multifunctional theranostic nanoparticles, internalized RGD (iRGD)-modified indocyanine green (ICG) encapsulated liposomes (iLIPICG), for imaging-guided photothermal therapy (PTT) and photodynamic therapy (PDT) for the treatment of laryngeal carcinoma. The iRGD-PEG-DSPE lipid endowed iLIPICG with high affinity for tumor vascular targeting, tumor-penetration and tumor cell targeting. The in vivo results showed that iLIPICG exhibited excellent blood circulation and tumor accumulation. iLIPICG could be spatially and temporally controlled, simultaneously producing hyperthermia and reactive oxygen species as well as a fluorescence-guided effect through ICG to ablate laryngeal carcinoma cells under irradiation from an 808 nm laser. iLIPICG generated synergistic photodynamic-photothermal cytotoxicity against Hep-2 cells, resulting in the efficient ablation of laryngeal carcinoma. Thus, the iLIPICG system provides a promising strategy to improve the precision imaging and effective phototherapy for the treatment of laryngeal carcinoma.
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Affiliation(s)
- Di Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China.
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11
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Abstract
Background Ovarian cancer is a frequently-occurring reproductive system malignancy in females, which leads to an annual of over 100 thousand deaths worldwide. Methods The electronic databases, including GEPIA, ONCOMINE, Metascape, and Kaplan-Meier Plotter, were used to examine both survival and transcriptional data regarding the cell division cycle associated (CDCA) gene family among ovarian cancer patients. Results All CDCA genes expression levels were up-regulated in ovarian cancer tissues relative to those in non-carcinoma ovarian counterparts. Besides, CDCA5/7 expression levels were related to the late tumor stage. In addition, the Kaplan-Meier Plotter database was employed to carry out survival analysis, which suggested that ovarian cancer patients with increased CDCA2/3/5/7 expression levels had poor overall survival (OS) (P<0.05). Moreover, ovarian cancer patients that had up-regulated mRNA expression levels of CDCA2/5/8 had markedly reduced progression-free survival (PFS) (P<0.05); and up-regulated CDCA4 expression showed remarkable association with reduced post-progression survival (PPS) (P<0.05). Additionally, the following processes were affected by CDCA genes alterations, including R-HAS-2500257: resolution of sister chromatid cohesion; GO:0051301: cell division; CORUM: 1118: Chromosomal passenger complex (CPC, including CDCA8, INCENP, AURKB and BIRC5); CORUM: 127: NDC80 kinetochore complex; M129: PID PLK1 pathway; and GO: 0007080: mitotic metaphase plate congression, all of which were subjected to marked regulation since the alterations affected CDCA genes. Conclusions Up-regulated CDCA gene expression in ovarian cancer tissues probably played a crucial part in the occurrence of ovarian cancer. The up-regulated CDCA2/3/5/7 expression levels were used as the potential prognostic markers to improve the poor ovarian cancer survival and prognostic accuracy. Moreover, CDCA genes probably exerted their functions in tumorigenesis through the PLK1 pathway.
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Affiliation(s)
- Chongxiang Chen
- Guangzhou Institute of Respiratory Diseases, State Key Laboratory of Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.,Department of Intensive Care Unit, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Siliang Chen
- Department of Hematology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Ma Luo
- Department of Interventional Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Honghong Yan
- Department of Intensive Care Unit, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Lanlan Pang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Chaoyang Zhu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Weiyan Tan
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Qingyu Zhao
- Department of Intensive Care Unit, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jielan Lai
- Department of Anesthesiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, China
| | - Huan Li
- Department of Intensive Care Unit, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
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12
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Li YS, Jiang BY, Yang JJ, Zhang XC, Zhang Z, Ye JY, Zhong WZ, Tu HY, Chen HJ, Wang Z, Xu CR, Wang BC, Du HJ, Chuai S, Han-Zhang H, Su J, Zhou Q, Yang XN, Guo WB, Yan HH, Liu YH, Yan LX, Huang B, Zheng MM, Wu YL. Unique genetic profiles from cerebrospinal fluid cell-free DNA in leptomeningeal metastases of EGFR-mutant non-small-cell lung cancer: a new medium of liquid biopsy. Ann Oncol 2019; 29:945-952. [PMID: 29346604 DOI: 10.1093/annonc/mdy009] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Background Leptomeningeal metastases (LM) are more frequent in non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations. Due to limited access to leptomeningeal lesions, the purpose of this study was to explore the potential role of cerebrospinal fluid (CSF) as a source of liquid biopsy in patients with LM. Patients and methods Primary tumor, CSF, and plasma in NSCLC with LM were tested by next-generation sequencing. In total, 45 patients with suspected LM underwent lumbar puncture, and those with EGFR mutations diagnosed with LM were enrolled. Results A total of 28 patients were enrolled in this cohort; CSF and plasma were available in 26 patients, respectively. Driver genes were detected in 100% (26/26), 84.6% (22/26), and 73.1% (19/26) of samples comprising CSF cell-free DNA (cfDNA), CSF precipitates, and plasma, respectively; 92.3% (24/26) of patients had much higher allele fractions in CSF cfDNA than the other two media. Unique genetic profiles were captured in CSF cfDNA compared with those in plasma and primary tissue. Multiple copy number variations (CNVs) were mainly identified in CSF cfDNA, and MET copy number gain identified in 47.8% (11/23) of patients was the most frequent one, while other CNVs included ERBB2, KRAS, ALK, and MYC. Moreover, loss of heterozygosity (LOH) of TP53 was identified in 73.1% (19/26) CSF cfDNA, which was much higher than that in plasma (2/26, 7.7%; P < 0.001). There was a trend towards a higher frequency of concomitant resistance mutations in patients with TP53 LOH than those without (70.6% versus 33.3%; P = 0.162). EGFR T790M was identified in CSF cfDNA of 30.4% (7/23) of patients who experienced TKI progression. Conclusion CSF cfDNA could reveal the unique genetic profiles of LM and should be considered as the most representative liquid biopsy medium for LM in EGFR-mutant NSCLC.
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Affiliation(s)
- Y S Li
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - B Y Jiang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - J J Yang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X C Zhang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Z Zhang
- Burning Rock Biotech, Guangzhou, China
| | - J Y Ye
- Burning Rock Biotech, Guangzhou, China
| | - W Z Zhong
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H Y Tu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H J Chen
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Z Wang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - C R Xu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - B C Wang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H J Du
- Department of Pulmonology, General Hospital of Guangzhou Military Command, Guangzhou, China
| | - S Chuai
- Burning Rock Biotech, Guangzhou, China
| | | | - J Su
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Q Zhou
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X N Yang
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - W B Guo
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H H Yan
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Y H Liu
- Department of Pathology, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - L X Yan
- Department of Pathology, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - B Huang
- Department of Radiology, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - M M Zheng
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Y L Wu
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cance, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China.
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Guo L, Chen Z, Xu C, Zhang X, Yan H, Su J, Yang J, Xie Z, Guo W, Li F, Wu Y, Zhou Q. Intratumoral heterogeneity of EGFR-activating mutations in advanced NSCLC patients at the single-cell level. BMC Cancer 2019; 19:369. [PMID: 31014278 PMCID: PMC6480785 DOI: 10.1186/s12885-019-5555-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 03/31/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Intratumoral epidermal growth factor receptor (EGFR) mutational heterogeneity is yet controversial in non-small cell lung cancer (NSCLC) patients. Single-cell analysis provides the genetic profile of single cancer cells and an in-depth understanding of the heterogeneity of a tumor. METHODS Firstly, single H1975 cells harboring the EGFR L858R mutation were submitted to flow cytometry isolation, nested polymerase chain reaction (nested-PCR) amplification, and direct DNA sequencing to assess the feasibility of single-cell direct DNA sequencing. Then, the single cells of patients with lung adenocarcinoma receiving gefitinib were captured by laser capture microdissection and analyzed by the above methods to identify the intratumoral heterogeneity of the EGFR L858R mutant. Three patients with progression-free survival (PFS) > 14 months were categorized as the long PFS group, and 3 patients with PFS < 6 months as the short PFS group. The correlation between the abundance of EGFR L858R mutant and PFS was analyzed. RESULTS 104 single H1975 cells were isolated. 100/104 were amplified by nested-PCR and confirmed by direct sequencing. We captured 135 tumor cells from the tissues of six patients. 120 single tumor cells were successfully amplified and sequenced. The rate of EGFR exon 21 mutation was only 77.5% (93/120). Furthermore, the rate of mutation in exon 21 of EGFR was significantly higher in the long PFS group than in the short PFS group (86.4 ± 4.9% vs. 68.9 ± 2.8%, P = 0.021). CONCLUSION Our study suggested the intratumoral heterogeneity of EGFR-activating mutations in lung adenocarcinoma confirmed on the single-cell level, which might be associated with EGFR-TKIs response in lung adenocarcinoma patients harboring the EGFR L858R mutation.
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Affiliation(s)
- Longhua Guo
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China.,Department of Medical Oncology, Cancer Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, 63 Huangtang Road, Meizhou, 514031, People's Republic of China
| | - Zhihong Chen
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Chongrui Xu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Xuchao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Honghong Yan
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Jian Su
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Jinji Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Zhi Xie
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Weibang Guo
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China
| | - Feng Li
- Department of Medical Oncology, Cancer Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, 63 Huangtang Road, Meizhou, 514031, People's Republic of China
| | - Yilong Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China.
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, People's Republic of China.
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Zheng C, Yan H, Zeng J, Cai S, Wu X. Comparison of pegylated interferon monotherapy and de novo pegylated interferon plus tenofovir combination therapy in patients with chronic hepatitis B. Infect Drug Resist 2019; 12:845-854. [PMID: 31114265 PMCID: PMC6489617 DOI: 10.2147/idr.s195144] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/04/2019] [Indexed: 12/21/2022] Open
Abstract
Background and aim: We aimed to evaluate the effectiveness of pegylated interferon (Peg-IFN) monotherapy (IFN group) and combination therapy with tenofovir (TDF) and Peg-IFN (IFN+TDF group) in chronic hepatitis B (CHB) patients. Patients and methods: Data of 143 CHB patients were analyzed in this study. All patients enrolled received liver biopsy. Virologic responses were defined as hepatitis B virus (HBV) DNA <100 IU/mL, biochemical responses were defined as normalization of alanine aminotransferse (ALT) levels, and HBeAg serological response was defined as HBeAg loss or HBeAg seroconversion to HBeAb. HBsAg serological response was defined as HBsAg loss or HBsAg seroconversion to HBsAb. Results: We observed that a total of 16.7% (11/66) and 33.8% (26/77) patients in IFN and IFN+TDF group achieved complete viral suppression after 48 weeks treatment (P=0.02). Although HBeAg levels in CHB patients in the IFN+TDF group decreased more rapidly during the 48-week treatment, we did not observe significant differences in HBeAg serological loss or seroconversion rates between the two groups at 24 and 48 weeks. HBsAg loss was observed in 13.0% (10/77) of CHB patients in the IFN+TDF group at 48 weeks, compared with only 3% (2/66) patients in the IFN group (P=0.032). No significant difference was observed in HBsAg seroconversion rate between the two groups during 48-week treatment. The biochemical response rate was also significantly higher in the IFN+TDF group than that in the IFN group at week 48 (P=0.015). Multivariate logistic analysis showed that IFN+TDF treatment (OR=4.41, P=0.003), severe baseline hepatic inflammation (OR=4.16, P<0.001), and lower baseline serum HBV DNA levels (OR=0.98, P=0.03) were strong predictors for the virological response. Younger age (OR=0.89, P=0.01), higher baseline ALT level (OR=1.01, P=0.038), and lower baseline HBeAg level (OR=0.99, P=0.008) were independent predictors for HBeAg sero-response after 48 weeks treatment. While only severe liver fibrosis (OR=1.69, P=0.028) and lower baseline HBsAg level (OR=0.22, P=0.005) were independent factors associated with HBsAg sero-response after 48 weeks treatment. Conclusion: Peg-IFN combined with TDF may increase the virological response rate, biochemical response rate, and HBsAg loss rate in patients with CHB infection. The combination treatment is more suitable for those patients who are likely to respond to the treatment.
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Affiliation(s)
- Caixia Zheng
- Department of Infectious Diseases, First Affiliated Hospital of Xiamen University, Xiamen, Fujian Province, People's Republic of China
| | - Honghong Yan
- Intensive Care Unit, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, People's Republic of China
| | - Jianyong Zeng
- Department of Infectious Diseases, First Affiliated Hospital of Xiamen University, Xiamen, Fujian Province, People's Republic of China
| | - Shaohang Cai
- Intensive Care Unit, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, People's Republic of China.,Department of Infectious Diseases and Hepatology Unit, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Xiaolu Wu
- Department of Infectious Diseases, First Affiliated Hospital of Xiamen University, Xiamen, Fujian Province, People's Republic of China
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15
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Tang W, Lei Y, Su J, Zhang C, Fu R, Kang J, Yan H, Yang X, Tu H, Wu Y, Zhong W. TNM stages inversely correlate with the age at diagnosis in ALK-positive lung cancer. Transl Lung Cancer Res 2019; 8:144-154. [PMID: 31106125 PMCID: PMC6504647 DOI: 10.21037/tlcr.2019.03.07] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/17/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND To clearly reveal the correlations between age at diagnosis, tumor-nodes-metastasis (TNM) stages and frequency of ALK-positive lung cancer. METHODS We reviewed patients who presented with ALK rearrangements (n=411) or KRAS-mutations (n=122) between September 2010 and January 2018. The clinical characteristics and overall survival were analyzed for the two genotype cohorts and stratified by different age categories (<40, 40-49, 50-59, ≥60 years). RESULTS In the ALK-positive cohort, the younger group showed more frequent disease in the T3/4 stage (P=0.014), lymph node metastasis (P=0.011) and distant metastasis (P=0.015) than the older groups. Meanwhile, the mean age at diagnosis for the ALK-positive patients showed a significant inverse correlation with the clinical stages (stage I/II vs. III vs. IV, 54.7 vs. 52.0 vs. 49.7 years; P<0.001), as well as with the T, N, and M categories. However, KRAS-mutant patients did not exhibit similar relationships to those observed in ALK-positive patients. Importantly, for ALK-positive patients, the frequency of stage IIIb-IV disease was almost twice that of stage I-IIIa disease (6.1% vs. 3.4%, P<0.001); there was a similar incidence of the different disease stages in KRAS-mutant lung cancer (P=0.924). Lastly, in ALK-positive patients, the ≥60 years group was associated with a trend toward better survival than the other younger groups. CONCLUSIONS The TNM stages exhibited a significant inverse correlation with age at diagnosis for ALK-positive lung cancer patients. More unique therapeutic strategies should be required in these young patients.
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Affiliation(s)
- Wenfang Tang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Shantou University Medical College, Shantou 515041, China
| | - Yuanyuan Lei
- Department of Clinical Oncology, Prince of Wales Hospital, the Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Jian Su
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Chao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Rui Fu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Shantou University Medical College, Shantou 515041, China
| | - Jin Kang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Honghong Yan
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xuening Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Haiyan Tu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yilong Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wenzhao Zhong
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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16
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Wu D, Zhang X, Liu Z, Yan H, Mai J, Zhao Z, Zhong Q, Liu X. Decreased expression of protein tyrosine kinase 6 contributes to tumor progression and metastasis in laryngeal squamous cell carcinoma. Biochem Biophys Res Commun 2018; 503:1378-1384. [PMID: 30029880 DOI: 10.1016/j.bbrc.2018.07.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND PTK6 is involved in cell proliferation, invasion and migration. Patients with lower PTK6 expression predicts poor prognosis of LSCC. However, the mechanism of PTK6 in LSCC progression remains unclear. We investigated the role of PTK6 in the pathogenesis of LSCC. METHODS Human LSCC tissues and paired adjacent non-tumor tissues were obtained to evaluate PTK6 expression. The biological function of PTK6 in LSCC was determined by overexpression of PTK6 in Hep-2 cells in vitro and in nude mice. The potential PTK6 target factors and signaling pathways were identified by Western blotting assay and immunohistochemical staining. RESULTS PTK6 was downregulated in tissues of human LSCC. Biological function investigation of PTK6 demonstrated that overexpression of PTK6 significantly decreased cell growth, clonogenicity, invasion and migration capacity in vitro and suppressed xenograft tumor growth as well as lung metastasis in vivo. PTK6 suppresses LSCC proliferation mainly by inhibiting c-myc and cyclinD1 expression. In addition, PTK6 promotes cell apoptosis in LSCC. Moreover, PTK6 mitigated LSCC invasion and migration through regulating EMT and MMP-9. CONCLUSION PTK6 plays a tumor suppressor role in LSCC by regulating c-myc and cyclinD1 expression, cell apoptosis, EMT and MMP-9.
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Affiliation(s)
- Di Wu
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Xinrui Zhang
- Guangzhou Otolarynology-head and Neck Surgery Hospital, Guangzhou, Guangdong, 510000, China
| | - Zhimin Liu
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Honghong Yan
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Junhao Mai
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Zheng Zhao
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Qian Zhong
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China
| | - Xuekui Liu
- Sun Yat-Sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, China.
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Su J, Zhong W, Zhang X, Huang Y, Yan H, Yang J, Dong Z, Xie Z, Zhou Q, Huang X, Lu D, Yan W, Wu YL. Molecular characteristics and clinical outcomes of EGFR exon 19 indel subtypes to EGFR TKIs in NSCLC patients. Oncotarget 2017; 8:111246-111257. [PMID: 29340050 PMCID: PMC5762318 DOI: 10.18632/oncotarget.22768] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 09/03/2017] [Indexed: 12/21/2022] Open
Abstract
Patients with non-small cell lung cancer (NSCLC) with activating epidermal growth factor receptor (EGFR) mutations (exon 19 deletions and L858R) benefit from EGFR tyrosine kinase inhibitors (TKIs). However, some researchers have reported that responses to TKIs differ by subtypes of EGFR exon 19 mutations. We retrospectively analyzed EGFR exon 19 deletion subtypes and their correlation with clinical outcomes of treatment with TKIs. A cohort of 2664 consecutive patients with NSCLC was enrolled. A total of 440 EGFR exon 19 deletions were defined as 39 subtypes. Among them, 158 patients with advanced lung adenocarcinoma with EGFR exon 19 deletion mutations received EGFR-TKIs. There were no significant differences in progression-free survival or overall survival among patients with non-LRE deletions, delE746, or delL747 (P = 0.463 and P = 0.464, respectively). Furthermore, two patients with EGFR exon19 insertion had durable response to EGFR-TKIs. In conclusion, EGFR exon 19 is highly fragile, resulting in many different deletion and insertion subtypes. There were no significant differences in clinical outcomes after TKI treatment across the different subtypes. It is necessary to attempt to identify all patients with exon 19 deletions so that they can be offered TKI treatment.
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Affiliation(s)
- Jian Su
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wenzhao Zhong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xuchao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Ying Huang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Honghong Yan
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jinji Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhongyi Dong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhi Xie
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xiaosui Huang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Danxia Lu
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wenqing Yan
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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18
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Wu D, Yu JC, Yan HH, Mai JH, Li QL, Li H, Yang AK, Zhang Q, Guo ZM, Liu XK. [Long-term outcome of laryngeal framework reconstruction using titanium mesh in glottic cancer after frontolateral vertical partial laryngectomy]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:552-555. [PMID: 29871309 DOI: 10.13201/j.issn.1001-1781.2017.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Indexed: 06/08/2023]
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19
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Yang JJ, Zhou Q, Yan HH, Zhang XC, Chen HJ, Tu HY, Wang Z, Xu CR, Su J, Wang BC, Jiang BY, Bai XY, Zhong WZ, Yang XN, Wu YL. A phase III randomised controlled trial of erlotinib vs gefitinib in advanced non-small cell lung cancer with EGFR mutations. Br J Cancer 2017; 116:568-574. [PMID: 28103612 PMCID: PMC5344291 DOI: 10.1038/bjc.2016.456] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/18/2016] [Accepted: 12/22/2016] [Indexed: 01/14/2023] Open
Abstract
Background: A phase III trial was conducted to compare the safety and efficacy of erlotinib with that of gefitinib in advanced non-small cell lung cancer harbouring epidermal growth factor receptor mutations in exon 19 or 21. Methods: Eligible patients were randomised to receive erlotinib (150 mg per day) or gefitinib (250 mg per day) orally until disease progression or unacceptable toxicity. We aimed to determine whether erlotinib is superior to gefitinib in efficacy. The primary end point was progression-free survival. Results: A total of 256 patients were randomised to receive erlotinib (N=128) or gefitinib (N=128). Median progression-free survival was not better with erlotinib than with gefitinib (13.0 vs 10.4 months, 95% confidence interval (CI) 0.62–1.05, P=0.108). The corresponding response rates and median overall survival were 56.3% vs 52.3% (P=0.530) and 22.9 vs 20.1 months (95% CI 0.63–1.13, P=0.250), respectively. There were no significant differences in grade 3/4 toxicities between the two arms (P=0.172). Conclusions: The primary end point was not met. Erlotinib was not significantly superior to gefitinib in terms of efficacy in advanced non-small cell lung cancer with epidermal growth factor receptor mutations in exon 19 or 21, and the two treatments had similar toxicities.
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Affiliation(s)
- J J Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Q Zhou
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H H Yan
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X C Zhang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H J Chen
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H Y Tu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Z Wang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - C R Xu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - J Su
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - B C Wang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - B Y Jiang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X Y Bai
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - W Z Zhong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X N Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Y L Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
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20
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Zhang Q, Zhang X, Yan H, Jiang B, Xu C, Yang J, Chen Z, Su J, Wu YL, Zhou Q. Effects of epidermal growth factor receptor-tyrosine kinase inhibitors alone on EGFR-mutant non-small cell lung cancer with brain metastasis. Thorac Cancer 2016; 7:648-654. [PMID: 27755835 PMCID: PMC5093172 DOI: 10.1111/1759-7714.12379] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/13/2016] [Accepted: 06/23/2016] [Indexed: 11/30/2022] Open
Abstract
Background Epidermal growth factor receptor‐tyrosine kinase inhibitors (EGFR‐TKIs) are remarkably effective for treating EGFR‐mutant non‐small cell lung cancer (NSCLC). However, the individual role of EGFR‐TKIs in patients with brain metastasis (BM) arising from EGFR‐mutant NSCLC remains unclear. Methods Patients with BM secondary to NSCLC and harboring EGFR‐activating mutations were retrospectively screened. Patients who received gefitinib or erlotinib to control both extracranial lesions (ECLs) and intracranial lesions (ICLs) were eligible. If ECLs remained stable or remissive while ICLs progressed; asymptomatic BM progressed to symptomatic BM; BM symptoms were not alleviated within two weeks; or BM symptoms deteriorated after initial release, patients received brain radiotherapy or other local treatments and continued taking TKIs until ECLs progression occurred. Results In 43 eligible patients, the objective response and disease control rates for ICLs were 57% and 91%, respectively. Median progression‐free survival (PFS) was 9.3 months. The median PFS for ICLs and ECLs was 9.7 and 13.7 months, respectively. Non‐smokers and second‐line TKIs were found to be independent positive prognostic factors for PFS and overall survival (OS) respectively, with a hazard ratio of 0.29 (95% confidence interval [CI] 0.14–0.61; P = 0.001) and 0.34 (95% CI 0.16–0.70; P = 0.003). No significant difference in median OS was observed between patients who did or did not receive brain radiotherapy (23.6 vs. 18.7 months; P = 0.317). Conclusion EGFR‐TKIs alone are effective for treating BM arising from EGFR‐mutant NSCLC. The efficacy of TKIs in ICLs and ECLs should be evaluated separately.
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Affiliation(s)
- Qiuyi Zhang
- Faculty of Graduate Studies, Southern Medical University, Guangzhou, China.,Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xuchao Zhang
- Medical Research Center of Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Honghong Yan
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Benyuan Jiang
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chongrui Xu
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jinji Yang
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhihong Chen
- Medical Research Center of Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jian Su
- Medical Research Center of Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yi-Long Wu
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China. .,Medical Research Center of Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Qing Zhou
- Division of Pulmonary Oncology, Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China.
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Deng W, Lei Y, Liu S, Yang J, Tu H, Yan H, Wu Y. Comparing overall survival between first generation EGFR-TKIs and chemotherapy in lung cancer patients with Del19/L858R. Chin J Cancer Res 2016; 28:339-47. [PMID: 27478319 PMCID: PMC4949279 DOI: 10.21147/j.issn.1000-9604.2016.03.08] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Objective Combined overall survival (OS) analysis of Lux-Lung 3 and Lux-Lung 6 demonstrated that patients with epidermal growth factor receptor (EGFR) exon 19 deletions (Del19) would benefit from first-line second generation EGFR tyrosine kinase inhibitors (TKIs) afatinib but not for those with L858R. This study was to investigate the survival difference between first-line first generation EGFR-TKIs and chemotherapy in patients with either Del19 or L858R, and to directly compare OS in these two mutation groups. Methods Eligibles were all prospective and retrospective studies comparing EGFR-TKIs with conventional chemotherapy or receiving single agent EGFR-TKIs and demonstrating survival analysis based on mutation types. The primary outcome was OS measured as pooled hazard ratios (HRs). All measures were pooled using randomeffects models and 95% confidential interval (95% CI) was calculated. Results A total of 14 studies incorporating 1,706 patients with either Del19 or L858R were included. Enrolling patients with Del19 or L858R in randomized controlled trials (RCTs), first-line first generation EGFR-TKIs were associated with no OS benefit, compared with chemotherapy (pooled HRTKI/Chemo for Del19: 0.82, 95% CI: 0.64-1.06, P = 0.14; pooled HRTKI/Chemo for L858R: 1.15, 95% CI: 0.85-1.56, P = 0.38). Direct comparison of Del19 with L858R receiving with first-line first generation EGFR-TKIs demonstrated no significant survival difference (pooled HR19/21: 0.88, 95% CI: 0.67-1.16, P = 0.37). Conclusions Among patients with advanced non-small cell lung cancer (NSCLC) harboring Del19 and L858R, first-line first generation EGFR-TKIs demonstrated no survival benefit comparing with chemotherapy. Direct comparison between Del19 and L858R revealed no significant survival difference after first-line first generation EGFR-TKIs.
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Affiliation(s)
- Wei Deng
- Second Clinical Medial Committee, Southern Medical University, Guangzhou 510515, China; Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yuanyuan Lei
- Second Clinical Medial Committee, Southern Medical University, Guangzhou 510515, China; Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Siyang Liu
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jinji Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Haiyan Tu
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Honghong Yan
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yilong Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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Lin H, Huang YS, Yan HH, Yang XN, Zhong WZ, Ye HW, Yang JJ, Zhou Q, Wu YL. A family history of cancer and lung cancer risk in never-smokers: A clinic-based case-control study. Lung Cancer 2015; 89:94-8. [PMID: 26067648 DOI: 10.1016/j.lungcan.2015.05.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/12/2015] [Accepted: 05/16/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Some population-based studies involving lung cancer patients have reported that inherited susceptibility is responsible for the familial aggregation observed in non-smoking lung cancer patients; however, it has been found that the false-negative rates in clinic-ascertained probands are significantly lower than population-ascertained probands. In this clinic-based study, we sought to determine the relationship between a family history of cancer and lung cancer risk in Chinese never-smokers. METHODS In this clinic-based case-control study, all 318 probands and 509 controls were Chinese. The data on demographic characteristics, age, gender, race, lung disease history, living environment, occupational exposure, and smoking history were collected from a structured questionnaire. Multiple conditional logistic regression was used to estimate adjusted odds ratios (aOR) and 95% CIs after adjusting for possible confounders. RESULTS The risk of lung cancer was increased in individuals with a family history of lung (aOR, 3.21; p<0.001) or any other cancer (aOR, 1.79; p<0.001). Analyses were carried out using stratified relative gender; first-degree female relatives tended to have a higher risk than first-degree male relatives. Similarly, the aOR for a female developing a malignant tumor was two times greater than controls. CONCLUSIONS Our analysis provides further evidence of the importance of genetic factors underlying lung cancer in patients who are never-smokers, especially in patients with a maternal history of cancer.
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Affiliation(s)
- Huan Lin
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yi-Sheng Huang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Hong-hong Yan
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xue-Ning Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wen-Zhao Zhong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Huan-Wen Ye
- Guangdong Province Traditional Chinese Medical Hospital, Guangzhou 510000, China
| | - Jin-Ji Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China.
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Zhong W, Yang X, Yan H, Zhang X, Su J, Chen Z, Liao R, Nie Q, Dong S, Zhou Q, Yang J, Tu H, Wu YL. Phase II study of biomarker-guided neoadjuvant treatment strategy for IIIA-N2 non-small cell lung cancer based on epidermal growth factor receptor mutation status. J Hematol Oncol 2015; 8:54. [PMID: 25981169 PMCID: PMC4455050 DOI: 10.1186/s13045-015-0151-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 05/07/2015] [Indexed: 12/25/2022] Open
Abstract
Background Neoadjuvant erlotinib and customized adjuvant therapy are appealing but controversial. The purpose of this study was to evaluate the role of biomarker-guided neoadjuvant treatment strategy in patients with IIIA-N2 non-small cell lung cancer (NSCLC) stratified by epidermal growth factor receptor (EGFR) mutation status. Findings Patients with resectable histologically documented stage IIIA-N2 NSCLC were assigned to a neoadjuvant erlotinib arm or a gemcitabine/carboplatin (GC) arm based on EGFR mutation status. The primary endpoint was response rate (RR). Secondary endpoints were progression-free survival (PFS) and overall survival (OS). Twenty-four patients with IIIA-N2 NSCLC were enrolled in the trial from January 2008 until May 2011. The overall response rate was 41.7 % and the PFS and OS were 7.9 and 23.2 months, respectively, in overall population. The RR was 58.3 % (7/12) for the erlotinib arm with mutant EGFR and 25.0 % (3/12) for the GC arm with wild type EGFR (P = 0.18). Median PFS was 6.9 months versus 9.0 months, respectively (P = 0.071). Median OS was 14.5 months for the erlotinib arm and 28.1 months for the GC arm (P = 0.201). No unexpected toxicities were observed. Conclusions The primary endpoint was met and biomarker-guided neoadjuvant treatment strategy in patients with IIIA-N2 NSCLC is feasible. Erlotinib alone in neoadjuvant setting of EGFR mutant population showed an improved response but without survival benefits. Trial registration ClinicalTrials.gov NCT00600587 https://www.clinicaltrials.gov/ct2/show/NCT00600587?term=NCT00600587&rank=1 Electronic supplementary material The online version of this article (doi:10.1186/s13045-015-0151-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wenzhao Zhong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Xuening Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Honghong Yan
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Xuchao Zhang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Jian Su
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Zhihong Chen
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Riqiang Liao
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Qiang Nie
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Song Dong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Jinji Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Haiyan Tu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
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Zeng Z, Yan HH, Zhang XC, Zhong WZ, He YY, Guan JL, Niu FY, Xie Z, Huang YS, Xu CR, Dong S, Wu YL. Reduced chemotherapy sensitivity in EGFR-mutant lung cancer patient with frontline EGFR tyrosine kinase inhibitor. Lung Cancer 2014; 86:219-24. [DOI: 10.1016/j.lungcan.2014.09.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/02/2014] [Accepted: 09/09/2014] [Indexed: 10/24/2022]
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Yan HH, Guo H, Ou JM. Emissions of halocarbons from mobile vehicle air conditioning system in Hong Kong. J Hazard Mater 2014; 278:401-408. [PMID: 24997256 DOI: 10.1016/j.jhazmat.2014.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/26/2014] [Accepted: 06/15/2014] [Indexed: 06/03/2023]
Abstract
During the implementation of Montreal Protocol, emission inventories of halocarbons in different sectors at regional scale are fundamental to the formulation of relevant management strategy and inspection of the implementation efficiency. This study investigated the emission profile of halocarbons used in the mobile vehicle air conditioning system, the leading sector of refrigeration industry in terms of the refrigerant bank, market and emission, in the Hong Kong Special Administrative Region, using a bottom-up approach developed by 2006 IPCC Good Practice Guidance. The results showed that emissions of CFC-12 peaked at 53 tons ODP (Ozone Depletion Potential) in 1992 and then gradually diminished, whereas HFC-134a presented an increasing emission trend since 1990s and the emissions of HFC-134a reached 65,000 tons CO2-equivelant (CO2-eq) by the end of 2011. Uncertainty analysis revealed relatively high levels of uncertainties for special-purpose vehicles and government vehicles. Moreover, greenhouse gas (GHG) abatements under different scenarios indicated that potential emission reduction of HFC-134a ranged from 4.1 to 8.4 × 10(5)tons CO2-eq. The findings in this study advance our knowledge of halocarbon emissions from mobile vehicle air conditioning system in Hong Kong.
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Affiliation(s)
- H H Yan
- Air Quality Studies, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - H Guo
- Air Quality Studies, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.
| | - J M Ou
- Air Quality Studies, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
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Lou N, Yang J, Yan H, Zhou Q, Liao R, Xu C, Huang Y, Yang X, Yang Y, Gan B, Wu Y. [Efficacies of gefitinib versus paclitaxel/carboplatin for patients with advanced pulmonary adenocarcinoma]. Zhonghua Yi Xue Za Zhi 2014; 94:2337-2341. [PMID: 25399973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To compare the clinical efficacies of gefitinib versus paclitaxel/carboplatin in patients with advanced pulmonary adenocarcinoma. METHODS A total of 51 advanced pulmonary adenocarcinoma patients were recruited from Guangdong General Hospital during October 2006 to September 2007. Eligible patients were ≥ 18 years old, either non-smokers or former light smokers and receiving no prior chemotherapy or biological/immunological therapy. According to performance status, smoking status and gender, they were selected with dynamic equilibrium randomized method 1: 1 to receive first-line gefitinib (250 mg/d) in gefitinib arm or carboplatin/paclitaxel (carboplatin, area under the curve 5 mg × ml⁻¹ × min⁻¹, 21-day cycle; paclitaxel, 200 mg/m², 21-day cycle in chemotherapy arm. The primary endpoint was progression free survival (PFS). And the secondary endpoints were objective response rate (ORR) and overall survival (OS). RESULTS They were randomized into gefitinib arm (n = 25) and paclitaxel/carboplatin arm (n = 26). The median PFS was 4.2 months in gefitinib arm and 8.3 months in paclitaxel/carboplatin arm (P = 0.422); ORR 36.0% in gefitinib arm and 42.3% in paclitaxel/carboplatin arm (P = 0.645); Median OS 14.4 months in gefitinib arm and 15.0 months in paclitaxel/carboplatin arm (P = 0.290). Multifactorial Cox regression analysis showed that age (P = 0.004), epidermal growth factor receptor (EGFR) gene mutation status (P = 0.012) and subsequent treatments (platinum-based chemotherapy, P = 0.001; EGFR-tyrosine kinase inhibitors (TKI), P = 0.005) were the significant predictors of OS. CONCLUSIONS No significant differences exist in terms of efficacy and survival between first-line gefitinib and paclitaxel/carboplatin for Chinese patients with pulmonary adenocarcinoma who are non-smokers or former light smokers. And age, EGFR gene mutation status and subsequent treatments are significant predictor of OS. However, first-line gefitinib should not be recommended for advanced non-small cell lung cancer (NSCLC) patients only based on clinical factors, due to a very small sample-size in our study.
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Affiliation(s)
- Nana Lou
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Jinji Yang
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Honghong Yan
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Qing Zhou
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Riqiang Liao
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Chongrui Xu
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Yisheng Huang
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Xuening Yang
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Yan Yang
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Bin Gan
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - Yilong Wu
- Department of Pulmonary Oncology, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Science, Guangzhou 510080, China.
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Zhao N, Zhang XC, Yan HH, Yang JJ, Wu YL. Efficacy of epidermal growth factor receptor inhibitors versus chemotherapy as second-line treatment in advanced non-small-cell lung cancer with wild-type EGFR: A meta-analysis of randomized controlled clinical trials. Lung Cancer 2014; 85:66-73. [DOI: 10.1016/j.lungcan.2014.03.026] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 02/27/2014] [Accepted: 03/16/2014] [Indexed: 01/08/2023]
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Zhou Q, Zhou CC, Chen GY, Cheng Y, Huang C, Zhang L, Xu CR, Li AW, Yan HH, Su J, Zhang XC, Yang JJ, Wu YL. A multicenter phase II study of sorafenib monotherapy in clinically selected patients with advanced lung adenocarcinoma after failure of EGFR-TKI therapy (Chinese Thoracic Oncology Group, CTONG 0805). Lung Cancer 2014; 83:369-73. [PMID: 24440279 DOI: 10.1016/j.lungcan.2013.12.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/07/2013] [Accepted: 12/26/2013] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Aim of the study was to investigate efficacy and safety of sorafenib in patients with advanced lung adenocarcinoma after failure of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) therapy. PATIENTS AND METHODS Patients who were diagnosed with stage IIIB or stage IV lung adenocarcinoma, and benefited from one prior EGFR-TKI therapy and then failed, were eligible. No more than one previous chemotherapy regimen was permitted. Patients received oral sorafenib 400mg twice daily continuously until disease progression or intolerable toxicity. Primary endpoint was disease control rate (DCR). Secondary endpoints included safety, progression-free survival (PFS) and overall survival (OS). For patients who agreed to provide peripheral blood or tumor tissue, we analyzed the genotype of Bcl-2-interacting mediator of cell death (BIM) deletion polymorphism and EGFR mutation status. RESULTS Of 65 enrolled patients, 64 were evaluable. The DCR was 32.8%, which did not meet the predefined statistical hypothesis of 38.4%. The median PFS and OS were 3.7 months [95% (confidence interval), 3.5-3.9 months] and 7.4 months (95% CI, 5.7-9.2 months), respectively. Logistic regression analysis showed no correlation between DCR and age, gender, smoking status and performance status. Hand-foot syndrome (HFS) was the predominant toxicity occurring in 71.9% of patients. Fourteen patients (21.9%) had ≥ grade 2 dermatologic reactions that resulted sorafenib dose reduction in three patients (4.7%). Of 36 patients, the BIM deletion polymorphism was found in 3, and no response to sorafenib was observed. In 30 tumor tissues, 22 EGFR active mutations were found. The DCR had no significant difference between mutation-positive and wild-type patients (31.8% vs. 42.9%, respectively; HR, 0.622; p=0.665). CONCLUSION Sorafenib monotherapy did not achieve positive result in patients defined in our trial and we need better biomarker to determine the population who can benefit from sorafenib treatment (ClinicalTrials.gov number: NCT00922584).
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Affiliation(s)
- Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | | | - Gong-yan Chen
- Haerbin Medical University Affiliated Tumor Hospital, Haerbin, China
| | - Ying Cheng
- Jilin Province Tumor Hospital, Jiling, China
| | - Cheng Huang
- Fujian Province Tumor Hospital, Fuzhou, China
| | - Li Zhang
- Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Chong-rui Xu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Ai-wu Li
- Shanghai Pulmonary Hospital, Shanghai, China
| | - Hong-hong Yan
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jian Su
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xu-chao Zhang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jin-ji Yang
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yi-long Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China.
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Ye Z, Zhang L, Xu L, Shi W, Hu H, Shi X, Zhong W, Hou S, Yan H, Zhang B, Xia Y, Wang W, Feng Z, Wang L, Liang Y. Probucol combined with valsartan in immunoglobulin A nephropathy: A multi-centre, open labelled, randomized controlled study. Nephrology (Carlton) 2013; 19:40-6. [PMID: 24191893 DOI: 10.1111/nep.12177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiming Ye
- Southern Medical University; Guangzhou China
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Li Zhang
- Southern Medical University; Guangzhou China
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Lixia Xu
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Wei Shi
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Haitang Hu
- Department of Nephrology; The First People's Hospital of Shunde; Foshan China
| | - Xiaofeng Shi
- Department of Nephrology; Jiangmen Central Hospital; Jiangmen China
| | - Weiqiang Zhong
- Department of Nephrology; Huizhou People's Hospital; Huizhou China
| | - Shuan Hou
- Depatrtment of Nephrology; Shenzhen Hospital of Piking University; Shenzhen China
| | - Honghong Yan
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Bin Zhang
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Yunfeng Xia
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Wenjian Wang
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Zonglin Feng
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Liping Wang
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
| | - Yongzheng Liang
- Department of Nephrology; Guangdong General Hospital, Guangdong Academy of Medical Sciences; Guangzhou China
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Yan HH, Zhang RQ, Du HF, Chi YC, Xia SC. Rhizoctonia solani Identified as the Disease Causing Agent of Peanut Leaf Rot in China. Plant Dis 2013; 97:140. [PMID: 30722287 DOI: 10.1094/pdis-05-12-0510-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Peanut (Arachis hypogaea L.) is one of the most economically important oil crops in the world. Since the 1990s, the peanut industry has developed rapidly in China. However, because of the use of high-yield varieties and increased plant density, a peanut leaf rot disease occurred in Laixi Experimental Fields in Shandong Province, China in 2007. Leaves had nearly circular, brown lesions that enlarged quickly developing yellow-brown halos at the edges of the lesions. High relative humidity under field conditions led to complete necrosis of the leaves with cotton wool-like mycelia observed followed by the development of sclerotia on the leaf surface. Symptomatic plants were observed between 2007 and 2010, and symptomatic leaf tissue was collected from the Laixi Experimental Fields. An isolate (designated YF-1) from symptomatic peanut leaves was isolated and purified on potato dextrose agar (PDA) and water agar (WA) medium. On PDA, the colony appeared initially as colorless and grew to the diameter of a 9-cm petri dish within 3 days. As the mycelium aged, the colony color gradually became light brown, and sclerotia developed on the surface of the colony. YF-1 was identified as Rhizoctonia solani Kühn based on the number of nuclei per cell ranging from 4 to 13 (average 6.1), hyphal diameter being 7.5 to 12.9 μm (average 8.3 μm), branching at right angles, a septum was present near each hyphal branch with a slight constriction, and no clamp connection structures or conidia were ever observed (4). To further confirm the identity of isolate YF-1, genomic DNA was extracted using the DNeasy Plant Mini DNA Extraction Kit (Shanghai Leifeng Biotechnol. Co., Ltd.), and the complete internal transcribed spacer (ITS) region of ribosomal DNA was amplified and sequenced with a pair of primers ITS1/ITS4 (2). A GenBank BLAST search produced an exact match for the sequences of R. solani (AY154301), with 100% sequence similarity. To estimate the mode of anastomosis, YF-1 was paired on WA medium with each reference strain belonging to anastomosis groups (AGs) 1 through 8 (provided by Shandong Agriculture University) (1,3). The results indicated that YF-1 belonged to group AG-1, subgroup AG-1-IA of R. solani. Pathogenicity tests were conducted by inoculating 10 peanut leaves using a colonized paper disc method (filter paper 1 cm in diameter suspended in the mycelia suspension). Ten control leaves received paper discs without mycelium. Inoculated and non-inoculated plants were kept in humid chambers for 24 h at 25°C. Three days after inoculation, the leaves developed typical brown lesions that were similar to those of naturally diseased plants. Koch's postulates were fulfilled by reisolation of R. solani from symptomatic leaves. No symptoms were observed on control leaves. To our knowledge, this is the first report of peanut leaf rot caused by R. solani. Occurrence of the disease in China is a new threat to the health of peanut. References: (1) Y. X. Chen et al. Acta Phytopathol. Sin. 3:139, 1985. (2) T. Misawa and S. Kuninaga. J. Gen. Plant Pathol. 76:310, 2010. (3) A. Ogoshi. Ann. Phytopathol. Soc. Jpn. 38:117, 1972. (4) J. R. Jr. Pameter and H. S. Whitmey. UC Press. 135, 1970.
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Affiliation(s)
- H H Yan
- College of Agronomy and Plant Protection, Qingdao Agriculture University, Qingdao, Shandong, 266109, China
| | - R Q Zhang
- College of Agronomy and Plant Protection, Qingdao Agriculture University, Qingdao, Shandong, 266109, China
| | - H F Du
- College of Agronomy and Plant Protection, Qingdao Agriculture University, Qingdao, Shandong, 266109, China
| | - Y C Chi
- Peanut Research Institute of Shandong Province, Qingdao, Shandong, 266100, China
| | - S C Xia
- College of Agronomy and Plant Protection, Qingdao Agriculture University, Qingdao, Shandong, 266109, China. H. H. Yan and R. Q. Zhang contributed equally to the work and should be regarded as co-first authors. Funded by Project for Science and Technology Development of Shandong Province (2009GG10009022), the Natural Science Foundation of Shandong Province (ZR2011CL005), Tai-Shan Scholar Construction Foundation of Shandong Province and Foundation for Outstanding Young Scientists of Shandong Province (BS2009NY040)
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Guan JL, Zhong WZ, An SJ, Yang JJ, Su J, Chen ZH, Yan HH, Chen ZY, Huang ZM, Zhang XC, Nie Q, Wu YL. KRAS mutation in patients with lung cancer: a predictor for poor prognosis but not for EGFR-TKIs or chemotherapy. Ann Surg Oncol 2012. [PMID: 23208128 DOI: 10.1245/s10434-012-2754-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The prognostic and predictive value of KRAS mutations in patients with lung cancer is controversial. Biases in disease stage, treatment regimen, small-scale patient studies, and biomarker status have led to inconsistent results in previous reports. METHODS The KRAS and EGFR genes were examined in 1935 consecutive patients with non-small cell lung cancer. All patients were divided into KRAS mutation (KRAS group), EGFR mutation (EGFR group), and KRAS/EGFR wild type (WT group) groups. Randomly selected cases were paired with patients with the KRAS mutation, the EGFR mutation, and KRAS/EGFR wild type patients according to tumor, node, metastasis stage, time of first visit within 1 year, and pathology. Progression-free survival (PFS) and overall survival were evaluated by Kaplan-Meier and Cox models. RESULTS The KRAS mutation rate for lung adenocarcinoma was 5.90 %. The overall survival was 14.47, 20.57, and 42.73 months for the KRAS group, WT group, and EGFR group, respectively (P < 0.001). Multivariate analysis indicated that KRAS mutation status was an independent prognostic factor (hazard ratio 2.69, 95 % confidence interval 1.91-3.80, P < 0.001). No difference was found in PFS and tumor responsiveness between patients with a KRAS mutation and those with wild type KRAS/EGFR for chemotherapy and EGFR tyrosine kinase inhibitors (TKI). PFS did not significantly differ for chemotherapy among the three groups (P = 0.270). CONCLUSIONS KRAS mutation is a poor prognosis factor, but it is not an independent predictor of response to EGFR-TKI or chemotherapy in patients with lung cancer.
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Affiliation(s)
- Ji-lin Guan
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
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Zhang XC, Blanckmeister CA, Yang J, Tian HX, Chen J, Xuan JW, Xie Z, Su J, Luo XL, Yan HH, Liu YH, Wu YL. Abstract 4504: Retrospective study of clinicopathologic factors associated with ALK rearrangement and survival outcome in Chinese patients with NSCLC. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-4504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: ALK rearrangement and EGFR mutation are significant molecular subtypes of non-small cell lung cancer (NSCLC) that are targets for different tyrosine kinase inhibitors (TKIs). We tested a large cohort of NSCLC patients for ALK, EGFR and KRAS abnormalities and correlated clinical factors with the ALK fusion gene and overall survival (OS). Methods: ALK status was detected by RACE sequencing; EGFR and KRAS status were also detected by direct DNA sequencing. OS was estimated by the Kaplan-Meier method. Results: 294 consecutive, unselected, banked NSCLC cases were tested; 27 (9.2%), 79 (29.2%) and 26 (9.6%) patients were ALK-, EGFR- and KRAS-positive, respectively. ALK rearrangement and EGFR mutation were largely exclusive (r=−0.15, P=0.007) although two cases were both ALK- and EGFR-positive. In non-parametric tests, ALK-positivity was associated with female gender (χ2=5.189; P=0.023), non/light-smoking (χ2=6.067; P=0.014) and adenocarcinoma (χ2=4.301; P=0.038). The ALK fusion partner was EML4 in all 27 cases; EML4-ALK fusion variants V1, V2 and V3 (V3a/V3b/V3c) made up the majority (24/27) of EML4-ALK fusions. There were no significant OS differences between ALK-positive, EGFR-mutant, KRAS-mutant and triple-negative groups, between ALK-positive and -negative patients, or when ALK-positive cases were matched 1:2 or 1:1 with (non-TKI-treated) controls balancing for disease stage, gender, histology and EGFR/KRAS status. In ALK-positive patients, bivariate analysis found that non- or light-smoking status (P=0.016) and prior surgery (P=0.024) were associated with increased OS and a multivariate Cox regression model found that disease stage and surgical treatment were prognostic for OS. In a multivariate logistic regression model, female gender (HR=2.793; P=0.041), wild type EGFR (HR=15.147; P=0.001), non/light-smoking (HR=3.572; P=0.020) and adenocarcinoma (HR=5.713; P=0.024) were significantly associated with ALK-rearrangement. Conclusion: Overall, the ALK fusion gene occurred in 9.2% of NSCLC patients, and was associated with non/light-smoking history, adenocarcinoma histology and female gender. ALK fusion variants were mostly V1-3, which may inform ALK screening by RT-PCR. ALK rearrangement was not a favorable prognostic factor in NSCLC, although smoking history may influence OS in ALK-positive patients. A TKI (crizotinib) now exists for ALK-positive NSCLC and may improve OS in these patients.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 4504. doi:1538-7445.AM2012-4504
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Affiliation(s)
| | | | - Jinji Yang
- 1Guangdong Lung Cancer Institute, Guangzhou, China
| | | | | | | | - Zhi Xie
- 1Guangdong Lung Cancer Institute, Guangzhou, China
| | - Jian Su
- 1Guangdong Lung Cancer Institute, Guangzhou, China
| | - Xin-lan Luo
- 4Guangdong General Hospital, Guangzhou, China
| | | | - Yan-hui Liu
- 4Guangdong General Hospital, Guangzhou, China
| | - Yi-Long Wu
- 1Guangdong Lung Cancer Institute, Guangzhou, China
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Chen Z, An S, Xie Z, Yan H, Chen J, Su J, Zhang X, Niu F, Guo W, Wu Y. [High resolution melting analysis for detecting p53 gene mutations in patients with non-small cell lung cancer]. Zhongguo Fei Ai Za Zhi 2012; 14:767-73. [PMID: 22008105 PMCID: PMC5999946 DOI: 10.3779/j.issn.1009-3419.2011.10.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
背景与目的 p53基因与人类多种肿瘤相关,突变型具有致癌作用,主要分布在外显子5-8。本研究旨在建立高分辨熔解曲线(high resolution melting, HRM)检测非小细胞肺癌(non-small cell lung cancer, NSCLC)患者p53基因突变的方法,探讨p53基因突变的特点及其在NSCLC发生发展中的演变规律。 方法 采用HRM法检测264例NSCLC患者肿瘤组织和54例癌旁肺组织p53基因外显子5-8的突变,突变样品进一步使用PCR产物直接测序法分析确定突变类型;HRM法检测阳性而PCR产物直接测序法检测阴性的样品,进一步进行亚克隆测序证实。 结果 54例对照未发现突变。264例肿瘤组织中,HRM法检出p53基因突变104例,102例得到PCR产物直接测序法证实,突变率为39.4%;95例为点突变,7例为碱基插入和缺失导致的移码突变。p53外显子5-8的突变率分别为11.7%、8%、12.5%和10.6%,差异无统计学意义(P=0.35)。p53基因突变与性别有关,与其它临床病理特征无关。 结论 HRM法筛选p53基因突变样品,具有操作简便、快速、敏感、单管避免污染等优点,值得推广。p53基因的突变特点提示,p53基因突变是自发性突变,可能是DNA合成和修复过程中的随机错误所致。
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Affiliation(s)
- Zhihong Chen
- Medical Research Center, Guangdong General Hospital, Guangdong Lung Cancer Institute, Guangdong Academy of Medical Sciences, Guangzhou, China
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Abstract
背景与目的 对人群每年进行低剂量胸部CT筛查可提高早期肺癌诊断率,但其假阳性率较高,常导致不必要的手术。本研究拟建立肺癌家系风险度预测模型,从中细分高危人群,从而提高筛选效能。 方法 以经病理确诊的肺癌患者的家系作为研究人群,同时收集先证者的配偶家系作为对照家系,共收集先证者家系633例和对照家系565例。应用SPSS 17.0进行统计学分析。 结果 先证者家系一级亲属患肿瘤的风险性为对照组家系一级亲属的1.71倍(OR=1.71, P < 0.001)。家系中患癌个数分别为=1和≥2的两组与对照组比较有统计学差异(P=0.005,
P=0.002)。建立回归模型后赋值得到与普通人群相比的肺癌风险度为0.38-63.08(倍)。风险度为普通人群10倍以上的群体,应用本模型的正确率为88.1%。 结论 如果一级亲属患癌个数越多,患肺癌的风险越高。根据本研究建立的风险度预测模型,风险度达普通人群10倍以上的主要为重度吸烟的吸烟人群,应加强筛查。特点为:有肺部既往疾病史的重度吸烟人群,加上男性、职业暴露和一级亲属肿瘤家族史三项中的任一项;有肺部既往疾病史或重度吸烟的人群中,有职业暴露的男性且一级亲属有不少于两位肿瘤患者。
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Affiliation(s)
- Huan Lin
- Guangdong General Hospital, Guangdong Academy of Medical Sciences,
Guangzhou 510080, China
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Yan HH, Dong XM, Chi GB, Wang SY. [Survey on the development regarding institution and professional contingence of injury prevention and strategy in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2010; 31:1086-1089. [PMID: 21162805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To explore the development on infrastructure and professional contingence related to injury prevention and control, in China. METHODS 38 Centers for Disease Control and Prevention (CDC) were investigated by using a self designed questionnaire and data was analyzed descriptively. RESULTS At present, all the CDCs at provincial and city level had not set up a specific department related to injury prevention and control, except for Shanghai and Guangxi CDCs. The proportions of full-time and part-time staff in all of the investigated CDCs were 37.30% and 62.70% respectively. From 2005 to 2008, the proportions of CDC which had made funds more than 500 000 Yuan available on injury prevention and control were: 27.78% in the eastern areas, 28.58% in central and 7.69% in the western areas of China. There were 76.92% of the CDCs in the western areas of China that the invested funding was less than 100 000 Yuan in the past years. Most of the routine work that had been carried out in those CDCs were surveillance and public education programs including collection of data and special surveys related to injuries on children, adolescents and the elderly population. 44.44%, and 28.57% of the CDCs in the eastern and central parts of the country wished to establish a Department of injury prevention and control, while 76.92% of the CDCs in the western part expressed their strong request for professional training on injury. CONCLUSION China remained underdeveloped in the development of institutional and professional team working on injuries which called for, setting up related programs to suit the local needs. In accordance with the working condition, the progress that had been made and the objective demand on institutional and professional contingence of the problems in different areas, both short and medium terms on the issue, need to be put forward to develop both institutional and professional programs on injuries in the eastern, central, and western areas of China.
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Affiliation(s)
- Hong-hong Yan
- Guangdong Lung Cancer Research Institute, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou 510080, China
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Yan HH, Mudge J, Kim DJ, Shoemaker RC, Cook DR, Young ND. Comparative physical mapping reveals features of microsynteny between Glycine max, Medicago truncatula, and Arabidopsis thaliana. Genome 2004; 47:141-55. [PMID: 15060611 DOI: 10.1139/g03-106] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To gain insight into genomic relationships between soybean (Glycine max) and Medicago truncatula, eight groups of bacterial artificial chromosome (BAC) contigs, together spanning 2.60 million base pairs (Mb) in G. max and 1.56 Mb in M. truncatula, were compared through high-resolution physical mapping combined with sequence and hybridization analysis of low-copy BAC ends. Cross-hybridization among G. max and M. truncatula contigs uncovered microsynteny in six of the contig groups and extensive microsynteny in three. Between G. max homoeologous (within genome duplicate) contigs, 85% of coding and 75% of noncoding sequences were conserved at the level of cross-hybridization. By contrast, only 29% of sequences were conserved between G. max and M. truncatula, and some kilobase-scale rearrangements were also observed. Detailed restriction maps were constructed for 11 contigs from the three highly microsyntenic groups, and these maps suggested that sequence order was highly conserved between G. max duplicates and generally conserved between G. max and M. truncatula. One instance of homoeologous BAC contigs in M. truncatula was also observed and examined in detail. A sequence similarity search against the Arabidopsis thaliana genome sequence identified up to three microsyntenic regions in A. thaliana for each of two of the legume BAC contig groups. Together, these results confirm previous predictions of one recent genome-wide duplication in G. max and suggest that M. truncatula also experienced ancient large-scale genome duplications.
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Affiliation(s)
- H H Yan
- Department of Plant Pathology, University of Minnesota, St Paul, MN 55108, USA
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Yan HH, Mudge J, Kim DJ, Larsen D, Shoemaker RC, Cook DR, Young ND. Estimates of conserved microsynteny among the genomes of Glycine max, Medicago truncatula and Arabidopsis thaliana. Theor Appl Genet 2003; 106:1256-65. [PMID: 12748777 DOI: 10.1007/s00122-002-1183-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2002] [Accepted: 10/28/2002] [Indexed: 05/24/2023]
Abstract
A growing body of research indicates that microsynteny is common among dicot genomes. However, most studies focus on just one or a few genomic regions, so the extent of microsynteny across entire genomes remains poorly characterized. To estimate the level of microsynteny between Medicago truncatula (Mt) and Glycine max (soybean), and also among homoeologous segments of soybean, we used a hybridization strategy involving bacterial artificial chromosome (BAC) contigs. A Mt BAC library consisting of 30,720 clones was screened with a total of 187 soybean BAC subclones and restriction fragment length polymorphism (RFLP) probes. These probes came from 50 soybean contig groups, defined as one or more related BAC contigs anchored by the same low-copy probe. In addition, 92 whole soybean BAC clones were hybridized to filters of HindIII-digested Mt BAC DNA to identify additional cases of cross-hybridization after removal of those soybean BACs found to be repetitive in Mt. Microsynteny was inferred when at least two low-copy probes from a single soybean contig hybridized to the same Mt BAC or when a soybean BAC clone hybridized to three or more low-copy fragments from a single Mt BAC. Of the 50 soybean contig groups examined, 54% showed microsynteny to Mt. The degree of conservation among 37 groups of soybean contigs was also investigated. The results indicated substantial conservation among soybean contigs in the same group, with 86.5% of the groups showing at least some level of microsynteny. One contig group was examined in detail by a combination of physical mapping and comparative sequencing of homoeologous segments. A TBLASTX similarity search was performed between 1,085 soybean sequences on the 50 BAC contig groups and the entire Arabidopsis genome. Based on a criterion of sequence homologues <100 kb apart, each with an expected value of < or =1e-07, seven of the 50 soybean contig groups (14%) exhibited microsynteny with Arabidopsis.
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Affiliation(s)
- H H Yan
- Department of Plant Pathology, 495 Borlaug Hall, 1991 Upper Buford Circle, University of Minnesota, St. Paul 55108, USA
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