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Zhang XM, Yang T, Xu YY, Li BZ, Shen W, Hu WQ, Yan CW, Zong L. Effectiveness and tolerability of programmed cell death protein-1 inhibitor + chemotherapy compared to chemotherapy for upper gastrointestinal tract cancers. World J Gastrointest Oncol 2024; 16:1613-1625. [PMID: 38660631 PMCID: PMC11037061 DOI: 10.4251/wjgo.v16.i4.1613] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/27/2023] [Accepted: 02/22/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND The combination of programmed cell death protein-1 (PD-1) inhibitor and chemotherapy is approved as a standard first- or second-line treatment in patients with advanced oesophageal or gastric cancer. However, it is unclear whether this combination is superior to chemotherapy alone. AIM To assess the comparative effectiveness and tolerability of combining PD-1 inhibitors with chemotherapy vs chemotherapy alone in patients with advanced gastric cancer, gastroesophageal junction (GEJ) cancer, or oesophageal carcinoma. METHODS We searched the PubMed and Embase databases for studies that compared the efficacy and tolerance of PD-1 inhibitors in combination with chemotherapy vs chemotherapy alone in patients with advanced oesophageal or gastric cancer. We employed either random or fixed models to analyze the outcomes of each clinical trial, encompassing data on overall survival (OS), progression-free survival (PFS), objective response rate, and adverse events (AEs). RESULTS Nine phase 3 clinical trials (7016 advanced oesophageal and gastric cancer patients) met the inclusion criteria. Our meta-analysis demonstrated that the pooled PD-1 inhibitor + chemotherapy group had a significantly longer OS than the chemotherapy-alone group [hazard ratio (HR) = 0.76, 95% confidence interval (CI): 0.71-0.81]; the pooled PFS result was consistent with that of OS (HR = 0.67, 95%CI: 0.61-0.74). The count of patients achieving an objective response in the PD-1 inhibitor + chemotherapy group surpassed that of the chemotherapy-alone group [odds ratio (OR) = 1.86, 95%CI: 1.59-2.18]. AE incidence was also higher in the combination-therapy group than in the chemotherapy-alone group, regardless of whether ≥ grade 3 only (OR = 1.30, 95%CI: 1.07-1.57) or all AE grades (OR = 1.88, 95%CI: 1.39-2.54) were examined. We performed a subgroup analysis based on the programmed death-ligand 1 (PD-L1) combined positive score (CPS) and noted extended OS and PFS durations within the CPS ≥ 1, CPS ≥ 5, and CPS ≥ 10 subgroups of the PD-1 inhibitor + chemotherapy group. CONCLUSION In contrast to chemotherapy alone, the combination of PD-1 inhibitor and chemotherapy appears to present a more favorable option for initial or subsequent treatment in patients with gastric cancer, GEJ tumor, or oesophageal cancer. This holds true particularly for individuals with PD-L1 CPS scores of ≥ 5 and ≥ 10.
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Affiliation(s)
- Xiao-Min Zhang
- Department of Central Laboratory, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
| | - Ting Yang
- Department of Central Laboratory, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
| | - Ying-Ying Xu
- Department of Gastrointestinal Surgery, Yizheng People’s Hospital, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Bao-Zhong Li
- Department of General Surgery, Anyang Tumor Hospital, Anyang 455000, Henan Province, China
| | - Wei Shen
- Department of General Surgery, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi 214023, Jiangsu Province, China
| | - Wen-Qing Hu
- Department of Gastrointestinal Surgery, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
| | - Cai-Wen Yan
- Department of Gastroenterology, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
| | - Liang Zong
- Department of Central Laboratory, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
- Department of Gastrointestinal Surgery, Changzhi People’s Hospital, The Affiliated Hospital of Changzhi Medical College, Changzhi 046000, Shanxi Province, China
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Chen BX, Guo Y, Fan JL, Li BZ, Tan CQ, Li DH, Hu HQ, Hu TX. [Pyrolysis and gas emissions characteristics of six tree species in Heilongjiang Province, China]. Ying Yong Sheng Tai Xue Bao 2022; 33:76-84. [PMID: 35224928 DOI: 10.13287/j.1001-9332.202201.012] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Forest fuels are the basis of fire occurrences, while ground dead fuels are an important part of forest fuels. Undestanding the pyrolysis characteristics and gas emissions of forest fuels is of great significance to explore the effects of forest fire on atmospheric environment and carbon balance, as well as to prevent and combat forest fire. In this study, the thermogravimetric analysis and gas emission analysis were conducted on leaf litter of six tree species (Pinus sylvestris var. mongolica, Picea koraiensis, Fraxinus mandshurica, Juglans mandshurica, Quercus mongolica, Betula platyphylla) in Heilongjiang Province to explore the pyrolysis process and combustibility of forest fuels, to analyze their pyrolysis characteristics, pyrolysis kinetics characteristics, gas emission characteristics. A four-dimensional evaluation of their combustibility was conducted based on pyrolysis parameters. The results showed that the pyrolysis temperature of holocellulose in the leaves of those six tree species ranged in 143.31-180.48 ℃ at the beginning and 345.04-394.38 ℃ at the end, lignin pyrolysis temperature ranged in 345.04-394.38 ℃ at the beginning and 582.85-609.31 ℃ at the end. The pyrolysis of the six kinds of arbor blades during the pyrolysis process affected fuel ash content, quality and temperature of the total pyrolysis. The activation energies of two main pyrolysis stages of leaves of six tree species were 18.88-27.08 kJ·mol-1 and 13.25-27.54 kJ·mol-1, respectively, and the pre-exponential factors were 3.13-26.28 min-1 and 1.30-22.55 min-1. The holocellulose activation energy and pre-exponential factor of the pyrolysis stage for P. koraiensis, F. mandshurica, Q. mongolica, and B. platyphylla were greater than that of the lignin pyrolysis stage, while the opposite was true for P. sylvestris var. mongolica and J. mandshurica. The release amounts of CO and CO2 at the pyrolysis stage of the holocellulose was 535.16-880.11 mg·m-3 and 7004.97-10302.05 mg·m-3, and that at the pyrolysis stage of lignin was 240.31-1104.67 mg·m-3 and 20425.60-33946.68 mg·m-3, respectively. The release of CO and CO2 at the pyrolysis stage of healdellulose was less, but mass loss was greater than that at the pyrolysis stage of lignin. In the four-dimensional combustibility ranking of the six tree species leaves, B. platyphylla was the best ignitable, P. koraiensis was the most combustible, and P. sylvestris var. mongolica was the most sustainable and consumable. The ignitability was significantly positively correlated with pyrolysis kinetics parameters of the holocellulose, while the sustainability was negatively correlated with that of lignin.
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Affiliation(s)
- Bo-Xuan Chen
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Yan Guo
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Jia-le Fan
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Bao-Zhong Li
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Chuan-Qiao Tan
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Dong-Hui Li
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Hai-Qing Hu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Tong-Xin Hu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
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Li BZ, Bai HH, Tan FW, Gao YB, He J. Identification of peroxiredoxin 6 as a potential lung-adenocarcinoma biomarker for predicting chemotherapy response by proteomic analysis. J BIOL REG HOMEOS AG 2021; 35:537-546. [PMID: 33631924 DOI: 10.23812/20-683-a] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The prognosis of lung cancer remains poor due to the limited biomarker selection for treating patients with optimal chemotherapy. The aim of this study is to discover and identify new biomarkers with the value of predicting chemotherapy responses in a lung adenocarcinoma (AD) specimen. In this study, six pairs of pre-treatment fresh primary lung AD-cancer tumors with varied chemotherapy responses were used to discover new biomarkers by two-dimensional difference gel electrophoresis (2D DIGE). Among the matched protein spots, 19 were up-regulated and 18 were down-regulated in chemo-sensitive tumors versus chemo-resistant tissues. These differentially expressed proteins could be divided into five classes: redox regulation protein, the cytoskeletal protein, cell metabolism enzymes or proteins, apoptosis, signal transduction mediated molecules, and other functional proteins. Proteins of interest, including PRDX2, PRDX6, and Gelsolin, were differentially expressed in chemo-sensitive tumors versus chemo-resistant tissues and these observations were validated by immunohistochemistry in 92 formalin-fixed and paraffin-embedded (FFPE) specimens. Our results demonstrated that PRDX6 protein expression was closely related to tumor response (cc2 = 5.57, P < 0.05), whereas no relationship of PRDX2 and Gelsolin were obtained with tumor response (cc2 = 0.51 P > 0.05, cc2 = 0.41 P > 0.05). This tissue proteomics study provides evidence that PRDX6 may be regarded as a predictive biomarker for poor chemotherapy response, which can be helpful in guiding pretreatment protocols.
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Affiliation(s)
- B Z Li
- Department of Thoracic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, P.R. China
| | - H H Bai
- Phase I Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, P.R. China
| | - F W Tan
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y B Gao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Li BZ, Xu XJ, Zhu H, Chen X, He M. Role of primary repair in spontaneous esophageal rupture management: decades of experience from a single center. Chin Med J (Engl) 2020; 133:2885-2886. [PMID: 33273342 PMCID: PMC10631588 DOI: 10.1097/cm9.0000000000001153] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Indexed: 11/25/2022] Open
Abstract
Supplemental Digital Content is available in the text
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Affiliation(s)
- Bao-Zhong Li
- Department of Thoracic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Xin-Jian Xu
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Hui Zhu
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Xin Chen
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Ming He
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
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Zhang H, Zhang XH, Chen P, Li BZ. [Cryptococcal meningitis in the treatment of CLL with ibrutinib: a case report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:428-430. [PMID: 32536143 PMCID: PMC7342065 DOI: 10.3760/cma.j.issn.0253-2727.2020.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Zhang
- Department of Hematology, The Second Affiliated Hospital of Soochow University, Suzhou 215000
| | - X H Zhang
- Department of Hematology, The Second Affiliated Hospital of Soochow University, Suzhou 215000
| | - P Chen
- Department of Hematology, The Second Affiliated Hospital of Soochow University, Suzhou 215000
| | - B Z Li
- Department of Hematology, The Second Affiliated Hospital of Soochow University, Suzhou 215000
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Li BZ, Li MS, Huang JY, Chen YY, Lu YH. [Expanding the pandemic influenza preparedness framework to the epidemic of COVID-19]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:597-601. [PMID: 32842276 DOI: 10.3760/cma.j.cn112150-20200316-00357] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
On March 11, 2020, WHO officially declared that COVID-19 had become Pandemic. As of March 31, the epidemic had affected more than 178 countries and regions, with more than 780 000 confirmed cases. The Pandemic Influenza Preparedness Framework for the sharing of influenza viruses and access to vaccines and other benefits (the 'PIP Framework' or 'Framework') is an international arrangement adopted by the World Health Organization in May 2011 to improve global pandemic influenza preparedness and response. Since the transmission route and transmission capacity of COVID-19 are similar to that of influenza A (H1N1) in 2009, which conforms to the basic elements of "human pandemic", and the epidemic scale has exceeded that of influenza A (H1N1), it is probable to incorporate COVID-19 epidemic response into PIPF, and at the same time to verify and improve PIPF in practice. It is recommended that WHO, other international organizations and relevant countries make full use of the PIPF system to respond to the epidemic and better coordinate national actions at the global level. At the same time, China should also make the planning and deploy of domestic epidemic prevention and control and international epidemic cooperation under the framework.
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Affiliation(s)
- B Z Li
- School of Public Health, Fudan University, Shanghai 200032, China
| | - M S Li
- School of Public Health, Fudan University, Shanghai 200032, China
| | - J Y Huang
- School of Public Health, Fudan University/National Health Commission Key Laboratory of Health Technology Assessment (Fudan University)/Fudan Global Health Institute, Shanghai 200032, China
| | - Y Y Chen
- School of Public Health, Fudan University/National Health Commission Key Laboratory of Health Technology Assessment (Fudan University)/Fudan Global Health Institute, Shanghai 200032, China
| | - Y H Lu
- School of Public Health, Fudan University/Ministry of Education Key Laboratory of Public Health and Safety (Fudan University) /Fudan Global Health Institute, Shanghai 200032, China
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Li SM, Gong YX, Zhang ZZ, Zhang W, Liu ZQ, Li BZ. Effect of Radical Surgery for Advanced Adenocarcinoma of Esophagogastric Junction on Perioperative Cellular Cell Immunity. J INVEST SURG 2019; 34:134-141. [PMID: 31533488 DOI: 10.1080/08941939.2019.1606963] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: To investigate the perioperative peripheral blood levels of CD4+CD25+ regulatory T cells, programed cell death 1 (PD-1), and lymphocyte activation gene 3 (LAG-3) in patients with advanced Siewert type II adenocarcinoma of esophagogastric junction (AEG). Methods: Patients (n = 102) with advanced Siewert type II AEG underwent open total gastrectomy/proximal gastrectomy with a transhiatal resection of the distal esophagus and lymphadenectomy of the lower mediastinum and the abdominal D2 compartment. Flow cytometry was used to detect CD4+CD25+ T cells, PD-1 and LAG-3 expression on both CD4+ and CD8+ T cells in the peripheral blood of the Siewert type II AEG patients prior to surgery and on postoperative day (POD) 1, 3, 7, and 9. Results: The proportion of CD4+CD25+ T cells rapidly decreased on POD 1, then gradually increased and peaked at POD 7. The proportion of CD4+PD-1+ T cells significantly increased after surgery, reaching a maximum on POD 1, and remained significantly elevated on POD 3 compared to the preoperative day. The proportion of CD8+ PD-1+ and CD4+LAG-3+ T cells gradually increased after surgery and reached a peak at POD 7. The change in proportion of CD8+LAG-3+ T cells in the peripheral venous blood lymphocytes after surgery was not statistically significant. Conclusion: The change in the CD4+PD-1+ T lymphocyte ratio may likely reflect the cellular immunity status of the perioperative period.
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Affiliation(s)
- Shou-Miao Li
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
| | - Yan-Xin Gong
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
| | - Zhi-Zhong Zhang
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
| | - Wei Zhang
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
| | - Zhi-Qiang Liu
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
| | - Bao-Zhong Li
- Department of Abdominal Tumor Surgery, Anyang Tumor Hospital, Anyang, P. R. China
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Gong BF, Tan YH, Liao AJ, Li J, Mao YY, Lu N, Ding Y, Jiang EL, Gong TJ, Jia ZL, Sun Y, Li BZ, Liu SC, Du J, Huang WR, Wei H, Wang JX. [Impact of KIT D816 mutation on salvage therapy in relapsed acute myeloid leukemia with t(8;21) translocation]. Zhonghua Xue Ye Xue Za Zhi 2018; 39:460-464. [PMID: 30032560 PMCID: PMC7342923 DOI: 10.3760/cma.j.issn.0253-2727.2018.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the impact of KIT D816 mutation on the salvage therapy in relapsed acute myeloid leukemia (AML) with t(8;21) translocation. Method: The characteristics of the first relapsed AML with t(8;21) translocation from 10 hospitals were retrospectively collected, complete remission (CR(2)) rate after one course salvage chemotherapy and the relationship between KIT mutation and CR(2) rate was analyzed. Results: 68 cases were enrolled in this study, and 30 cases (44.1%) achieved CR(2). All patients received KIT mutation detection, and KIT D816 mutation was identified in 26 cases. The KIT D816 positive group had significantly lower CR(2) compared with non-KIT D816 group (23.1% vs 57.1%, χ(2)=7.559, P=0.006), and patients with longer CR(1) duration achieved significantly higher CR(2) than those with CR(1) duration less than 12 months (74.1% vs 31.9%, χ(2)=9.192, P=0.002). KIT D816 mutation was tightly related to shorter CR(1) duration. No significant difference of 2 years post relapse survival was observed between KIT D816 mutation and non-KIT D816 mutation group. Conclusion: KIT D816 mutation at diagnosis was an adverse factor on the salvage therapy in relapsed AML with t(8;21) translocation, significantly related to shorter CR1 duration, and can be used for prediction of salvage therapy response. KIT D816 mutation could guide the decision-making of salvage therapy in relapsed AML with t(8;21) translocation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J X Wang
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, Tianjin Clinical Research Center for Blood Diseases, Tianjin 300020, China
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Blount BA, Gowers GOF, Ho JCH, Ledesma-Amaro R, Jovicevic D, McKiernan RM, Xie ZX, Li BZ, Yuan YJ, Ellis T. Rapid host strain improvement by in vivo rearrangement of a synthetic yeast chromosome. Nat Commun 2018; 9:1932. [PMID: 29789540 PMCID: PMC5964169 DOI: 10.1038/s41467-018-03143-w] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [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: 07/21/2017] [Accepted: 01/23/2018] [Indexed: 11/21/2022] Open
Abstract
Synthetic biology tools, such as modular parts and combinatorial DNA assembly, are routinely used to optimise the productivity of heterologous metabolic pathways for biosynthesis or substrate utilisation, yet it is well established that host strain background is just as important for determining productivity. Here we report that in vivo combinatorial genomic rearrangement of Saccharomyces cerevisiae yeast with a synthetic chromosome V can rapidly generate new, improved host strains with genetic backgrounds favourable to diverse heterologous pathways, including those for violacein and penicillin biosynthesis and for xylose utilisation. We show how the modular rearrangement of synthetic chromosomes by SCRaMbLE can be easily determined using long-read nanopore sequencing and we explore experimental conditions that optimise diversification and screening. This synthetic genome approach to metabolic engineering provides productivity improvements in a fast, simple and accessible way, making it a valuable addition to existing strain improvement techniques. The Sc2.0 project has built the Synthetic Chromosome Rearrangement and Modification by LoxP-mediated Evolution (SCRaMbLE) system into their synthetic chromosomes. Here the authors use SCRaMbLE to rapidly develop, diversify and screen strains for diverse production and growth characteristics.
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Affiliation(s)
- B A Blount
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - G-O F Gowers
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - J C H Ho
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - R Ledesma-Amaro
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - D Jovicevic
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - R M McKiernan
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK.,Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Z X Xie
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, PR China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, 300072, Tianjin, PR China
| | - B Z Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, PR China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, 300072, Tianjin, PR China
| | - Y J Yuan
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, PR China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, 300072, Tianjin, PR China
| | - T Ellis
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK. .,Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
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Li BZ, Chen ZL, Shi SS, Feng XL, Tan XG, Zhou F, He J. Overexpression of Cdc25C predicts response to radiotherapy and survival in esophageal squamous cell carcinoma patients treated with radiotherapy followed by surgery. Chin J Cancer 2013; 32:403-9. [PMID: 23470146 PMCID: PMC3845600 DOI: 10.5732/cjc.012.10233] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Biomarker identification is crucial for the selection of patients who might benefit from radiotherapy. To explore potential markers for response and prognosis in patients with locally advanced esophageal carcinoma treated with radiotherapy followed by surgery, we evaluated the expression of cell cycle checkpoint-related proteins Chk2, Cdc25C, and Cyclin D1. A total of 56 patients with locally advanced esophageal squamous cell carcinoma were treated with radiotherapy followed by surgery. Pretreatment tumor biopsy specimens were analyzed for Chk2, Cdc25C, and Cyclin D1 expression by immunohistochemistry. High expression of Chk2, Cyclin D1, and Cdc25C was observed in 44 (78.6%), 15 (26.8%), and 27 (48.2%) patients, respectively. The median survival was 16 months (range, 3–154 months), with a 5-year overall survival rate of 19.6%. Overexpression of Chk2 was associated with smoking (P = 0.021), overexpression of Cdc25C was associated with patient age (P = 0.033) and tumor length (P = 0.001), and overexpression of Cdc25C was associated with pathologic complete response (P = 0.038). Univariate analysis demonstrated that overexpression of Cdc25C and pathologic complete response was associated with better survival. In multivariate analysis, Cdc25C was the most significant independent predictor of better survival (P = 0.014) for patients treated with radiotherapy followed by surgery. Overexpression of Cdc25C was significantly associated with pathologic complete response and better survival of patients with locally advanced esophageal cancer treated with radiotherapy followed by surgery. These results suggest that Cdc25C may be a biomarker of treatment response and good prognosis for esophageal carcinoma patients. Thus, immunohistochemical staining of Cdc25C in a pretreatment specimen may be a useful method of identifying optimal treatment for patients with esophageal carcinoma.
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Affiliation(s)
- Bao-Zhong Li
- Departments of Thoracic Surgery, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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11
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Chen ZL, Zhao SH, Wang Z, Qiu B, Li BZ, Zhou F, Tan XG, He J. Expression and unique functions of four nuclear factor of activated T cells isoforms in non-small cell lung cancer. Chin J Cancer 2012; 30:62-8. [PMID: 21192845 PMCID: PMC4012264 DOI: 10.5732/cjc.010.10156] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Nuclear factor of activated T cells (NFAT) is an important family of transcription factors that can be activated by calmodulin and calcineurin in human cells. To investigate the expression and clinical significance of NFAT isoforms and calcineurin in non-small cell lung cancer (NSCLC), we collected tumor and adjacent normal tissues from 159 NSCLC patients and assembled them in a tissue microarray. Protein levels of NFAT1, NFAT2, NFAT3, NFAT4, and calcineurin were determined using immunohistochemistry. Correlations between NFAT and calcineurin expression and clinicopathologic characteristics were analyzed. We found that the positive rates of NFAT1 (52.8%, 84/159), NFAT2 (11.3%, 18/159), NFAT3 (28.3%, 45/ 159), NFAT4 (47.2%, 75/159), and calcineurin (47.8%, 76/159) expression were significantly higher in tumor tissues than in adjacent normal lung tissues (P < 0.001), respectively. The positive rate of NFAT1 expression was significantly higher in patients with adenocarcinoma (63.5%, 47/74) than in those with squamous cell carcinoma (43.5%, 37/85) (χ2 = 6.340, P = 0.012); with lymph node metastasis (61.6%, 53/ 86) than without lymph node metastasis (42.5%, 31/73) (χ2 = 5.818, P = 0.016); and with stage-ll and -III diseases (61.8%, 55/89) than with stage-I disease (41.4%, 29/70) (χ2 = 6.524, P = 0.011). Moreover, the overexpression of NFAT1 was associated with poor survival of NSCLC patients (χ2 = 5.006, P = 0.025). The positive rate of NFAT4 was significantly higher in patients with squamous carcinoma (57.6%, 49/85) than in those with adenocarcinoma (35.1%, 26/74) (χ2 = 8.045, P = 0.005) and with high and moderate differentiation (54.9%, 61/111) than with low differentiation (29.2%, 14/48) (χ2 = 8.943, P = 0.003). Calcineurin overexpression was significantly associated with histologic type (higher in squamous carcinoma than in adenocarcinoma, χ2 = 8.897, P = 0.003), differentiation grade (higher in high-moderation grade than in low grade, χ2 = 9.566, P = 0.002) and gender (higher in male than in female, χ2 = 5.766, P = 0.016). Furthermore, calcineurin expression was significantly correlated with NFAT4 level (r = 0.429, P < 0.001). These results suggest that NFAT1 expression is associated with lung adenocarcinoma progression, and NFAT4 expression, which was higher in squamous lung cancer, is associated with calcineurin expression and differentiation grade.
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Affiliation(s)
- Zhao-Li Chen
- Department of Thoracic Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing 100021, PR China
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12
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Liu XP, Niu JL, Kwok KCS, Wang JH, Li BZ. Local characteristics of cross-unit contamination around high-rise building due to wind effect: mean concentration and infection risk assessment. J Hazard Mater 2011; 196:160-5. [PMID: 21616594 DOI: 10.1016/j.jhazmat.2011.09.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 08/01/2011] [Accepted: 09/03/2011] [Indexed: 05/16/2023]
Abstract
In this present work, the characteristics of hazardous gas dispersion and possible cross-unit contamination around a complex-shaped high-rise residential building due to wind effect are thoroughly studied using physical modeling method. Experiments were performed in a boundary layer wind tunnel for a 1:30 scale model that represented a 10-story residential building in prototype. Tracer gas, simulating exhausted room air, was continuously released from different floor levels, and its concentrations on the adjacent envelope surfaces were measured using fast flame ionization detectors. The mean concentration fields were reported and analyzed under different configurations during the experiment to consider the effects on pollutant dispersion behavior due to changes in source position and approaching wind condition, with the main emphasis on the differences between open-window and closed-window conditions. In particular, the measured concentration fields were further examined from a practical point of view, with respect to hazard assessment. Understanding these hazardous plume dispersion features is useful for employing effective intervention strategies in modern residential building environment in case of hazardous substance release. The study on this physical process is not only helpful to reduce the hazardous effect of routine release of harmful pollutant near the building, but also useful for the purpose of prevention and control of accidental infectious diseases outbreak.
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Affiliation(s)
- X P Liu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, PR China
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13
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Liu XP, Niu JL, Kwok KCS, Wang JH, Li BZ. Local characteristics of cross-unit contamination around high-rise building due to wind effect: mean concentration and infection risk assessment. J Hazard Mater 2011; 192:160-167. [PMID: 21616594 DOI: 10.1016/j.jhazmat.2011.04.106] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/28/2011] [Accepted: 04/30/2011] [Indexed: 05/30/2023]
Abstract
In this present work, the characteristics of hazardous gas dispersion and possible cross-unit contamination around a complex-shaped high-rise residential building due to wind effect are thoroughly studied using physical modeling method. Experiments were performed in a boundary layer wind tunnel for a 1:30 scale model that represented a 10-story residential building in prototype. Tracer gas, simulating exhausted room air, was continuously released from different floor levels, and its concentrations on the adjacent envelope surfaces were measured using fast flame ionization detectors. The mean concentration fields were reported and analyzed under different configurations during the experiment to consider the effects on pollutant dispersion behavior due to changes in source position and approaching wind condition, with the main emphasis on the differences between open-window and closed-window conditions. In particular, the measured concentration fields were further examined from a practical point of view, with respect to hazard assessment. Understanding these hazardous plume dispersion features is useful for employing effective intervention strategies in modern residential building environment in case of hazardous substance release. The study on this physical process is not only helpful to reduce the hazardous effect of routine release of harmful pollutant near the building, but also useful for the purpose of prevention and control of accidental infectious diseases outbreak.
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Affiliation(s)
- X P Liu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, PR China
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Ding DP, Chen ZL, Zhao XH, Wang JW, Sun J, Wang Z, Tan FW, Tan XG, Li BZ, Zhou F, Shao K, Li N, Qiu B, He J. miR-29c induces cell cycle arrest in esophageal squamous cell carcinoma by modulating cyclin E expression. Carcinogenesis 2011; 32:1025-1032. [PMID: 21551130 DOI: 10.1093/carcin/bgr078] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [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: 01/22/2024] Open
Abstract
Cyclin E is reported to be an important cell cycle regulator, and its dysregulation is implicated in tumorigenesis including esophageal squamous cell carcinoma (ESCC). MicroRNAs (miRNAs) regulate gene expression at the posttranscriptional level and play important roles in tumor initiation and progression. However, the regulation of cyclin E by miRNAs is still unclear in ESCC. In the present study, we found that overexpression of miR-29c inhibited cyclin E expression by targeting 3' untranslated region of cyclin E messenger RNA in ESCC cells. Moreover, overexpression of miR-29c induced cell cycle G(1)/G(0) arrest through suppression of cyclin E expression, without affecting other G(1) phase-related proteins level, such as cyclin D1, cyclin D2, cyclin dependent kinase (CDK) 2 and CDK6. Furthermore, we demonstrated that overexpression of miR-29c inhibited proliferation of ESCC cells in vitro and in vivo. In addition, we detected miR-29c expression in 26 pairs of esophageal tumor-in-site-tissues and 60 pairs of ESCC tissues. The result showed that miR-29c level significantly decreased in ESCC tumor tissues and cell lines compared with normal esophageal epithelia. Taken together, our findings indicated that miR-29c was frequently downregulated in ESCC tissues and cells and suppressed tumor growth by inducing cell cycle G(1)/G(0) arrest mainly through modulating cyclin E expression.
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Affiliation(s)
- Da-Peng Ding
- Department of Thoracic Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17, Panjiayuannanli, Chaoyang District, Beijing 100021, China
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15
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Kong LB, Ye LB, Ye L, Timani KA, Zheng Y, Liao QJ, Li BZ, Gao B. Establishment of stable HeLa cell lines expressing enzymatically active hepatitis C virus RNA polymerase. Arch Virol 2005; 151:361-7. [PMID: 16328144 DOI: 10.1007/s00705-005-0656-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Accepted: 09/09/2005] [Indexed: 10/25/2022]
Abstract
The hepatitis C virus RNA polymerase (NS5B) is strictly required for viral replication and thus represents an attractive target for antiviral drug development. In this study, stable HeLa cell lines with an integrated NS5B gene were selected by G418 and then confirmed by genome PCR. Subsequently, transcription and expression of the integrated NS5B genes were demonstrated by RT-PCR and Western blot analysis. Further analysis demonstrated enzymatic activity of the expressed NS5B polymerase. The stable HeLa cell lines should be useful for the identification of NS5B inhibitors and for studying the mechanisms of HCV replication.
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Affiliation(s)
- L B Kong
- State Key Laboratory of Virology, College of Life Science, Wuhan University, Wuhan, P.R. China
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16
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Li BZ. [The measurement of IAA oxidase in "ping guo li" leaves]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:837-839. [PMID: 12958909] [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: 05/24/2023]
Abstract
IAA oxidase activity during the fruit bud differentiation of "Ping Guo Li" in leaves measured by UV-Vis method was studied. The method is less sample, simple operation and high sensitivity. The test of recovery and repetition shows that both the precision and accuracy accord with the demands.
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Affiliation(s)
- B Z Li
- Department of Bioengineering, Inner Mongolia College of Agriculture and Animal Husbandry, Huhehot 010018, China
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Hu ZX, Luo JP, Lu EY, Deng YP, Li BZ. [Development and application of the facial soft tissue 3D measuring system]. Shanghai Kou Qiang Yi Xue 2001; 10:157-8, 169. [PMID: 14994046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To combine measurement and image technology as an objective means to help prosthodontists provide better service. METHODS The system was developed by consisting of two CCD cameras, real time hardware for the recognition of markers and software for the 3D reconstruction. RESULTS It allowed efficient, direct and noninvasive calculation of the 3D liner and angular measurements of the human face. CONCLUSION This system is a useful way to get 3D information of the human face. It will be a good supplement to the classic cephalometric analyses.
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Affiliation(s)
- Z X Hu
- Department of Dentistry, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China.
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Wu JH, Li BZ, Yang GL, Pu FC. Comment on "Theory of giant magnetoresistance effects in Fe/Cr multilayers: Spin-dependent scattering from impurities". Phys Rev B Condens Matter 1996; 53:9471-9472. [PMID: 9982455 DOI: 10.1103/physrevb.53.9471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Li LM, Pu FC, Yang GL, Li BZ. Simple theory of giant magnetoresistance in a magnetic trilayer. Phys Rev B Condens Matter 1995; 51:12833-12835. [PMID: 9978066 DOI: 10.1103/physrevb.51.12833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Li BZ, Zhang YJ, Zhang ZM. [Clinico-pathologic study of 285 cases of ectopic pregnancy in intrauterine devices-users and non-intrauterine devices-users]. Zhonghua Fu Chan Ke Za Zhi 1994; 29:238-40, 255. [PMID: 8082451] [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: 01/28/2023]
Abstract
Two hundred eighty five cases of ectopic pregnancy in Beijing area from Jan. 1 to Dec. 31 1990 including 150 cases of intrauterine devices (IUD) and 135 cases of non-IUD users were studied. Clinico-pathological observation included the history of pelvic inflammatory disease, the site of ectopic pregnancy, the classification of previous tubal inflammation of the ectopic side and other pathologic lesions, the side of the corpus luteum of pregnancy and histology of endometrium, etc. Besides, using stereologic technique the cilia length and cilia density of endosalpinx were studied in 50 cases through image analysis system. Results showed that except for a significant higher frequency of ovarian pregnancy in IUD-users, there was no significant differences between the 2 groups. It indicated that the degree of injury of fallopian tubes and the factors causing the damage were similar in both groups. The authors concluded that IUD does not increase the risk of fallopian tube lesions.
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Affiliation(s)
- B Z Li
- Beijing Obstetrics and Gynecology Hospital
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21
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Li BZ. [Balloon dilatation for prostatic obstruction]. Zhonghua Wai Ke Za Zhi 1992; 29:764-5, 798-9. [PMID: 1377619] [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: 12/26/2022]
Abstract
Balloon catheter dilatation of the prostate (BCDP) was performed in 25 patients with prostatic hypertrophy. All patients suffered from dysuria or urinary retention. Follow-up for 8-14 months showed that 20 patients had satisfactory results. The balloon catheter of 25 mm x 50 mm was inflated at 4-6 atm for 10-15 minutes. BCDP was modified for the use in the local hospitals.
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Affiliation(s)
- B Z Li
- Guangdong Provincial People's Hospital
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22
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Li BZ. [The stereological study on normal and intrauterine growth retardation (IUGR) placentas]. Zhonghua Bing Li Xue Za Zhi 1992; 21:227-8. [PMID: 1473207] [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: 12/27/2022]
Abstract
The stereological study was carried out in 8 normal and 22 IUGR placentas through Image Analysis System of Cambridge Instruments Quantimet 970 and 10 indices were analysed. The results showed that in the IUGR group the placental indices of total surface area of acroteric villus, total volume of intervillous space, volume density of fetal capillaries, total volume of fetal capillaries and surface area density of vasculo-syncytial membrane were significantly reduced than those in the normal group. The vasculo-syncytial membrane became significantly thick in the IUGR placental group. It was confirmed that a close relation exists between IUGR and placental quantitative changes. The major pathological findings of the placenta were prematuration and hypoplasia.
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Affiliation(s)
- B Z Li
- Beijing Obstetrics and Gynecology Hospital
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23
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Sheng P, Li BZ, Zhou M, Moses T, Shen YR. Disordered-surface-layer transition in nematic liquid crystals. Phys Rev A 1992; 46:946-950. [PMID: 9908195 DOI: 10.1103/physreva.46.946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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24
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Li BZ, Zhang QM, Miao YX. [An analysis of 3,779 cases of urolithiasis]. Zhonghua Wai Ke Za Zhi 1986; 24:536-7, 573. [PMID: 3582040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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25
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Li BZ, Liu TC, Deng LJ, Hao HD, Zhao YY, Zhao YN. [Effect of praziquantel on ultrastructures of gut epithelia of Clonorchis sinensis]. Zhongguo Yao Li Xue Bao 1985; 6:283-4. [PMID: 2945376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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26
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Li BZ. [Discovery of Parafossarulus anomaloispiralis as the first intermediate host of Clonochis sinensis]. Zhonghua Liu Xing Bing Xue Za Zhi 1985; 6:199. [PMID: 3912056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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27
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Li BZ. [Long-term effect of the pull-through operation in traumatic posterior urethral stricture]. Zhonghua Wai Ke Za Zhi 1984; 22:368-9, 384. [PMID: 6510174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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