1
|
Yan XQ, Ye MJ, Zou Q, Chen P, He ZS, Wu B, He DL, He CH, Xue XY, Ji ZG, Chen H, Zhang S, Liu YP, Zhang XD, Fu C, Xu DF, Qiu MX, Lv JJ, Huang J, Ren XB, Cheng Y, Qin WJ, Zhang X, Zhou FJ, Ma LL, Guo JM, Ding DG, Wei SZ, He Y, Guo HQ, Shi BK, Liu L, Liu F, Hu ZQ, Jin XM, Yang L, Zhu SX, Liu JH, Huang YH, Xu T, Liu B, Sun T, Wang ZJ, Jiang HW, Yu DX, Zhou AP, Jiang J, Luan GD, Jin CL, Xu J, Hu JX, Huang YR, Guo J, Zhai W, Sheng XN. Toripalimab plus axitinib versus sunitinib as first-line treatment for advanced renal cell carcinoma: RENOTORCH, a randomized, open-label, phase III study. Ann Oncol 2024; 35:190-199. [PMID: 37872020 DOI: 10.1016/j.annonc.2023.09.3108] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitors in combination with tyrosine kinase inhibitors are standard treatments for advanced clear cell renal cell carcinoma (RCC). This phase III RENOTORCH study compared the efficacy and safety of toripalimab plus axitinib versus sunitinib for the first-line treatment of patients with intermediate-/poor-risk advanced RCC. PATIENTS AND METHODS Patients with intermediate-/poor-risk unresectable or metastatic RCC were randomized in a ratio of 1 : 1 to receive toripalimab (240 mg intravenously once every 3 weeks) plus axitinib (5 mg orally twice daily) or sunitinib [50 mg orally once daily for 4 weeks (6-week cycle) or 2 weeks (3-week cycle)]. The primary endpoint was progression-free survival (PFS) assessed by an independent review committee (IRC). The secondary endpoints were investigator-assessed PFS, overall response rate (ORR), overall survival (OS), and safety. RESULTS A total of 421 patients were randomized to receive toripalimab plus axitinib (n = 210) or sunitinib (n = 211). With a median follow-up of 14.6 months, toripalimab plus axitinib significantly reduced the risk of disease progression or death by 35% compared with sunitinib as assessed by an IRC [hazard ratio (HR) 0.65, 95% confidence interval (CI) 0.49-0.86; P = 0.0028]. The median PFS was 18.0 months in the toripalimab-axitinib group, whereas it was 9.8 months in the sunitinib group. The IRC-assessed ORR was significantly higher in the toripalimab-axitinib group compared with the sunitinib group (56.7% versus 30.8%; P < 0.0001). An OS trend favoring toripalimab plus axitinib was also observed (HR 0.61, 95% CI 0.40-0.92). Treatment-related grade ≥3 adverse events occurred in 61.5% of patients in the toripalimab-axitinib group and 58.6% of patients in the sunitinib group. CONCLUSION In patients with previously untreated intermediate-/poor-risk advanced RCC, toripalimab plus axitinib provided significantly longer PFS and higher ORR than sunitinib and had a manageable safety profile TRIAL REGISTRATION: ClinicalTrials.gov NCT04394975.
Collapse
Affiliation(s)
- X Q Yan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Genitourinary Oncology, Peking University Cancer Hospital & Institute, Beijing
| | - M J Ye
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
| | - Q Zou
- Department of Urology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing
| | - P Chen
- Department of Urology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi
| | - Z S He
- Department of Urology, First Hospital of Peking University, Beijing
| | - B Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang
| | - D L He
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an
| | - C H He
- Department of Urology, Cancer Hospital of Henan Province, Zhengzhou
| | - X Y Xue
- Department of Urology, The First Affiliated Hospital, Fujian Medical University, Fuzhou
| | - Z G Ji
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - H Chen
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin
| | - S Zhang
- Department of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu
| | - Y P Liu
- Department of Oncology, The First Hospital of China Medical University, Shenyang
| | - X D Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing
| | - C Fu
- Department of Urology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang
| | - D F Xu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai
| | - M X Qiu
- Department of Urology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu
| | - J J Lv
- Department of Urology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan
| | - J Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou
| | - X B Ren
- Department of Immunology and Biotherapy, Cancer Institute & Hospital, Tianjin Medical University, Tianjin
| | - Y Cheng
- Department of Medical Thoracic Oncology, Jilin Provincial Cancer Hospital, Changchun
| | - W J Qin
- Department of Urology, Xijing Hospital of Air Force Military Medical University, Xi'an
| | - X Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing
| | - F J Zhou
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing
| | - J M Guo
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai
| | - D G Ding
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou
| | - S Z Wei
- Department of Urology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Y He
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing
| | - H Q Guo
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing
| | - B K Shi
- Department of Urology, Qilu Hospital of Shandong University, Jinan
| | - L Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan
| | - F Liu
- Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou
| | - Z Q Hu
- Department of Urology, Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science & Technology, Wuhan
| | - X M Jin
- Department of Oncology, General Hospital of Ningxia Medical University, Yinchuan
| | - L Yang
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou
| | - S X Zhu
- Department of Urology, Fujian Medical University Union Hospital, Fuzhou
| | - J H Liu
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming
| | - Y H Huang
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou
| | - T Xu
- Department of Urology, Peking University People's Hospital, Beijing
| | - B Liu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou
| | - T Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang
| | - Z J Wang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing
| | - H W Jiang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai
| | - D X Yu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei
| | - A P Zhou
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - J Jiang
- Department of Urology, The PLA General Hospital Army Characteristic Medical Center, Chongqing
| | - G D Luan
- Shanghai Junshi Biosciences Co., Ltd., Shanghai
| | - C L Jin
- Shanghai Junshi Biosciences Co., Ltd., Shanghai
| | - J Xu
- Shanghai Junshi Biosciences Co., Ltd., Shanghai
| | - J X Hu
- Shanghai Junshi Biosciences Co., Ltd., Shanghai
| | - Y R Huang
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Genitourinary Oncology, Peking University Cancer Hospital & Institute, Beijing
| | - W Zhai
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - X N Sheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Genitourinary Oncology, Peking University Cancer Hospital & Institute, Beijing.
| |
Collapse
|
2
|
Liu ZF, Zhang Y, Liu J, Wang YY, Chen M, Liu EY, Guo JM, Wang YH, Weng ZW, Liu CX, Yu CH, Wang XY. Effect of Traditional Chinese Non-Pharmacological Therapies on Knee Osteoarthritis: A Narrative Review of Clinical Application and Mechanism. Orthop Res Rev 2024; 16:21-33. [PMID: 38292459 PMCID: PMC10826518 DOI: 10.2147/orr.s442025] [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] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/16/2024] [Indexed: 02/01/2024] Open
Abstract
Knee osteoarthritis (KOA) stands as a degenerative ailment with a substantial and escalating prevalence. The practice of traditional Chinese non-pharmacological therapy has become a prevalent complementary and adjunctive approach. A mounting body of evidence suggests its efficacy in addressing KOA. Recent investigations have delved into its underlying mechanism, yielding some headway. Consequently, this comprehensive analysis seeks to encapsulate the clinical application and molecular mechanism of traditional Chinese non-pharmacological therapy in KOA treatment. The review reveals that various therapies, such as acupuncture, electroacupuncture, warm needle acupuncture, tuina, and acupotomy, primarily target localized knee components like cartilage, subchondral bone, and synovium. Moreover, their impact extends to the central nervous system and intestinal flora. More perfect experimental design and more comprehensive research remain a promising avenue in the future.
Collapse
Affiliation(s)
- Zhi-Feng Liu
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Yang Zhang
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Jing Liu
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Yu-Yan Wang
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Mo Chen
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Er-Yang Liu
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Jun-Ming Guo
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Yan-Hua Wang
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Zhi-Wen Weng
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Chang-Xin Liu
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Chang-He Yu
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| | - Xi-You Wang
- Tuina and Pain Management Department, Beijing University of Chinese Medicine Affilliated Dongzhimen Hospital, Beijing, People’s Republic of China
| |
Collapse
|
3
|
Kang HH, Liu XH, Zhang XY, Guo JM, Wu GJ, Xu GB, Kang SC. [Mercury in tree rings: Advances, problems and prospects]. Ying Yong Sheng Tai Xue Bao 2021; 32:3733-3742. [PMID: 34676736 DOI: 10.13287/j.1001-9332.202110.003] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
As a highly biotoxic element, mercury (Hg) can be enriched by the food chain and has negative effect on ecosystems. Changes of Hg flux and reserves in forest have important effects on its biogeochemical cycle in forest ecosystem. Due to limitation of temporal and spatial monitoring, there is not comprehensive understanding on Hg distribution. Widely distributed trees can be used as effective bio-monitors and Hg records in tree rings can be used to study Hg temporal and spatial distribution. Hg accumulated by root, leaf, bark, and other tissues can be detained in bole and record environmental Hg variations. Therefore, historical Hg trends can be restructured by analyzing Hg concentration in tree rings and the biogeochemical characteristics can be understood with Hg isotope ratio. We reviewed the method of measurement of Hg concentration and isotope ratio and application of reconstruction using Hg concentration in tree ring. We suggested the great application potential of Hg isotope ratio in atmospheric Hg construction and biogeochemistry cycle and raised concerns in further studies.
Collapse
Affiliation(s)
- Hu-Hu Kang
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Hong Liu
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.,School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Xin-Yu Zhang
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Jun-Ming Guo
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Guo-Ju Wu
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Guo-Bao Xu
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shi-Chang Kang
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
4
|
Cheng J, Li YH, Huang JQ, Xu PR, Xiang ZY, He MK, Guo JM, Wang H. [Comparison of diagnostic value between renal cyst index and Bosniak classification in cystic renal masses]. Zhonghua Yi Xue Za Zhi 2021; 101:2906-2908. [PMID: 34587732 DOI: 10.3760/cma.j.cn112137-20210202-00327] [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: 11/05/2022]
Abstract
A total of 106 patients who were diagnosed with Bosniak catergory ⅡF or Ⅲ cystic renal masses (CRM) and underwent surgery in Zhongshan-Xuhui Hospital and Xuhui District Central Hospital between January 2018 and December 2019 were retrospectively analyzed. The diagnostic accuracy of renal cyst index (RCI) and Bosniak classification system was compared by analyzing the relevant parameters including the sensitivity and specificity. There were 62 males and 44 females, with a median age of 56 years old. Among the 106 CRM, 72 were benign and 34 were malignant. The sensitivity and specificity of RCI was 94.12% and 81.94%, respectively, while the sensitivity and specificity of Bosniak classification system was 73.53% and 80.56%, respectively. Chi-square test revealed that the sensitivity of RCI was significantly higher than that of Bosniak classification system (P=0.023). The current study indicates that RCI is a simple and feasible method which can provide quantitative evaluation for predicting characteristics of CRM.
Collapse
Affiliation(s)
- J Cheng
- Department of Urology, Zhongshan-Xuhui Hospital, Fudan University/Xuhui District Central Hospital, Shanghai 200031, China
| | - Y H Li
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - J Q Huang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - P R Xu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Z Y Xiang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - M K He
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - J M Guo
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - H Wang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| |
Collapse
|
5
|
Fu LY, Wang SW, Hu MY, Jiang ZL, Shen LL, Zhou YP, Guo JM, Hu YR. Circular RNAs in liver diseases: Mechanisms and therapeutic targets. Life Sci 2020; 264:118707. [PMID: 33144187 DOI: 10.1016/j.lfs.2020.118707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 07/31/2020] [Revised: 10/22/2020] [Accepted: 10/30/2020] [Indexed: 02/07/2023]
Abstract
Circular RNAs (circRNAs) are formed from the genome through diverse back splicing and feature the closed loop. circRNAs are widely available in a variety of cells and characterized by conservation, structural stability, high abundance and tissue-specific or developmental-specific expression. Recent studies have shown that circRNAs are closely related to liver diseases, such as metabolic-associated fatty liver disease, hepatitis, liver cirrhosis and hepatocellular carcinoma. circRNAs play an important role in the progression of liver diseases, are potential diagnostic and prognostic markers, and have translational value in therapy. This article reviews the research on circRNAs in liver diseases, with a view to providing a theoretical basis and new ideas for future research and treatment of liver diseases.
Collapse
Affiliation(s)
- Li-Yun Fu
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China; Ningbo Institute of Life and Health Industry, University of Chinese Academy of Science, Ningbo 315010, China; Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Ningbo 315010, China; Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China.
| | - Shu-Wei Wang
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China; Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China
| | - Meng-Yuan Hu
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China; Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China
| | - Zhen-Luo Jiang
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - Li-Li Shen
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - Yu-Ping Zhou
- Department of Gastroenterology, the Affiliated Hospital of Medical School of Ningbo University, Ningbo 315020, China
| | - Jun-Ming Guo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China
| | - Yao-Ren Hu
- Department of Infection and Hepatology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China; Ningbo Institute of Life and Health Industry, University of Chinese Academy of Science, Ningbo 315010, China; Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Ningbo 315010, China
| |
Collapse
|
6
|
Shi J, Zhu ZM, Sun K, Lei PC, Liu ZW, Guo JM, Yang J, Zang YZ, Zhang Y. [Expression of CD45 in newly diagnosed multiple myeloma and the relationship with prognosis]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:744-749. [PMID: 31648475 PMCID: PMC7342442 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
目的 观察CD45在初诊多发性骨髓瘤(MM)患者中的表达,探讨其与MM疗效和预后的关系。 方法 回顾性分析2010年1月至2017年1月河南省人民医院收治的130例初诊MM患者骨髓异常浆细胞中CD45的表达情况,对CD45+与CD45−患者的疗效和预后进行比较。 结果 ①130例初诊MM患者中CD45+组33例(25.38%),CD45−组97例(74.62%)。②CD45+组和CD45−组的客观缓解率(ORR)分别为33.33%和64.95%,差异有统计学意义(P=0.002);以硼替佐米为基础方案治疗的患者,CD45+组和CD45−组的ORR分别为35.71%和66.25%,差异有统计学意义(P=0.005)。③130例MM患者的中位无进展生存(PFS)时间为33.3(95%CI 6.0~69.0)个月,中位总生存(OS)时间为36.3(95%CI 6.0~78.0)个月,CD45+组与CD45−组的中位PFS时间分别为29.8(95%CI 10.0~59.0)个月和34.5(95%CI 6.0~69.0)个月,差异有统计学意义(χ2=14.59,P<0.001),中位OS时间分别为32.5(95%CI 10.0~68.0)个月和37.6(95%CI 6.0~78.0)个月,差异有统计学意义(χ2=11.42,P=0.001);接受硼替佐米的患者中,CD45+组与CD45−组的中位PFS分别为30.3(95%CI 10.0~59.0)个月和36.3(95%CI 6.0~69.0)个月,差异有统计学意义(χ2=14.75,P=0.001)。中位OS时间分别为34.0(95%CI 10.0~68.0)个月和39.5(95%CI 6.0~78.0)个月,差异有统计学意义(χ2=10.62,P=0.001)。④Cox风险回归模型分析显示血肌酐≥176.8 µmol/L[HR=2.723(95%CI 1.744~6.723),P=0.001]、CD45阳性[HR=1.330(95%CI 1.067~1.804),P=0.008],LDH ≥ 220 IU/L[HR=1.308(95%CI 1.160~2.417),P=0.015]是独立于其他临床指标的预后危险因素。 结论 CD45阳性是MM患者的预后不良因素。硼替佐米不能改善CD45+MM患者的不良预后。
Collapse
Affiliation(s)
- J Shi
- Henan Provincial People's Hospital, Zhengzhou 450003, China
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Shi J, Sun K, Zhu ZM, Lei PC, Liu ZW, Chen YQ, Guo JM, Zang YZ, Yang J, Zhang Y. [Prognostic significance of CD56 and CD117 expression in patients with newly diagnosed multiple myeloma treated with bortezomib-based first-line therapy]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:693-696. [PMID: 31495142 PMCID: PMC7342872 DOI: 10.3760/cma.j.issn.0253-2727.2019.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Shi
- Department of Hematology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Xu H, Wang P, Ma RJ, Guo JM, Lei PC, Zang YZ, Wang TB, Liu ZW, Yang J, Zhang Y, Zhu ZM. [Comparative study of molecular response of first-line and second-line nilotinib in patients with chronic-phase chronic myelogenous leukemia]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:522-525. [PMID: 31340628 PMCID: PMC7342397 DOI: 10.3760/cma.j.issn.0253-2727.2019.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H Xu
- Jinzhou Medical University, Jinzhou 121001, China; Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - P Wang
- Hematology of Department, Xinyang Central Hospital, Xinyang 464000, China
| | - R J Ma
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - J M Guo
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - P C Lei
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - Y Z Zang
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - T B Wang
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - Z W Liu
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - J Yang
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - Y Zhang
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China
| | - Z M Zhu
- Hematology of Department, Henan Province People's Hospital, Zhengzhou 450003, China; Institute of Hematology, Henan Province People's Hospital, Zhengzhou 450003, China
| |
Collapse
|
9
|
Jiang ZL, Shen LL, Hu YR, Guo JM, Fu LY. [Role and potential value of circular RNAs in the occurrence of primary hepatic cancer]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:157-160. [PMID: 30818925 DOI: 10.3760/cma.j.issn.1007-3418.2019.02.018] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Circular RNA is a class of non-coding RNAs, which are covalently closed and circular at both ends, showing dissimilar characteristics from linear RNA. Several studies have shown that circular RNAs play an important role in the occurrence and development of primary hepatic cancer. By combining with the latest research progress of this field at home and abroad, we summarized the mechanism regulating the occurrence and development of liver cancer, abnormal expression, and as potential molecular markers for disease diagnosis and treatment.
Collapse
Affiliation(s)
- Z L Jiang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China; Department of Hepatology, Ningbo No.2 Hospital, Ningbo 315020, China
| | - L L Shen
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China; Department of Hepatology, Ningbo No.2 Hospital, Ningbo 315020, China
| | - Y R Hu
- Department of Hepatology, Ningbo No.2 Hospital, Ningbo 315020, China; Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Ningbo 315020, China
| | - J M Guo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China
| | - L Y Fu
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo 315211, China; Department of Hepatology, Ningbo No.2 Hospital, Ningbo 315020, China; Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Ningbo 315020, China
| |
Collapse
|
10
|
Ma RJ, Zhu ZM, Yuan XL, Jiang L, Yang SW, Yang J, Guo JM, Shi J, Lei PC, Zhang L, Shang BJ, Sun K, Zhai YP, Li W, Zhang Y. [The analysis of prognosis-associated factors in adults with acute promyelocytic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:592-596. [PMID: 28810326 PMCID: PMC7342290 DOI: 10.3760/cma.j.issn.0253-2727.2017.07.007] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
目的 探讨CD34、CD2、CD56表达和FLT3-ITD突变在成人急性早幼粒细胞白血病(APL)中的预后价值。 方法 分析2010年1月至2016年3月确诊的137例成人APL患者的免疫表型及分子学特点,探讨CD34、CD2、CD56表达及FLT3-ITD突变与初诊WBC、完全缓解率、早期死亡率、复发率、总生存(OS)率及无病生存(DFS)率的关系。 结果 ①137例APL患者中,伴CD34表达者占26.3%,伴CD2表达者占25.5%,伴CD56表达者占10.2%,FLT3-ITD突变率为17.5%。CD34、CD2、CD56表达和FLT3-ITD突变在高危组患者中的发生率分别为43.2%、47.7%、18.2%和27.3%;在中/低危组患者中的发生率分别为18.3%、15.1%、6.5%和12.9%,差异均有统计学意义(χ2值分别为9.561、16.764、4.480、4.268,P值分别为0.002、<0.001、0.034、0.039)。②中位随访41个月,完全缓解率为96.9%,早期死亡率为6.6%,复发率为7.3%。与阴性者比较,伴CD34或CD2表达者的复发率增加(18.8%对3.3%,χ2=8.462,P=0.004;16.1%对4.3%,χ2=4.382,P=0.028);伴CD56表达或FLT3-ITD突变者早期死亡率增加(21.4%对4.9%,χ2=5.610,P=0.018;16.7%对4.4%,χ2=4.833,P=0.028)。③137例患者的OS率为88.3%,DFS率为84.7%;CD34、CD56表达或FLT3-ITD突变者的OS及DFS较阴性者差(P值均<0.05)。 结论 在成人APL患者中,CD34、CD2、CD56表达及FLT3-ITD突变是一种不良预后因素。
Collapse
Affiliation(s)
- R J Ma
- Department of Hematology, Henan Provincial People's Hospital, Henan University, Zhengzhou 450003, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Ma RJ, Zhu ZM, Yuan XL, Jiang L, Yang SW, Yang J, Wang Z, Lei PC, Sun K, Guo JM, Zhang L, Zhang Y. [Significance of changed levels of TRACP-5b, PINP and vitamin D3 before and after the treatment of myeloma disease]. Zhonghua Xue Ye Xue Za Zhi 2018; 39:685-687. [PMID: 30180474 PMCID: PMC7342840 DOI: 10.3760/cma.j.issn.0253-2727.2018.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 11/05/2022]
|
12
|
Lu YN, Zhang F, Hu XY, Yang NQ, Guo JM, Wang H. [Application of mini-flank open nephron sparing surgery via retroperitoneal route for centrally located renal tumor treatment: a single center experience]. Zhonghua Yi Xue Za Zhi 2017; 97:2202-2204. [PMID: 28763900 DOI: 10.3760/cma.j.issn.0376-2491.2017.28.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the safety and feasibility of mini-flank open nephron sparing surgery (MI-OPN) via retroperitoneal route for the treatment of centrally located renal tumor. Methods: From May 2013 to April 2015, twenty-four cases of centrally located renal tumor were treated with MI-OPN via retroperitoneal route in Zhongshan Hospital. All cases were included in this study with whose clinical data and long term follow-up information retrospectively analyzed. Results: With the assistance of intraoperative ultrasonography to confirm tumor location and boundary, MI-OPN was successfully performed in all cases. Mean tumor maximum diameter was 3.3±0.6 cm, mean operation time was 113±16 minutes, mean ischemia time was 31±6 min, and mean estimated blood loss was 102±46 ml. Mean postoperative hospital stay was 5.0±0.8 days, postoperative complication was found in one patient (4%). The mean pre- and postoperative serum creatinine were 77.1±20.1 μmol/L and 90.3±20.0 μmol/L. Pathological examination confirmed negative surgical margin in all cases, with 18 cases of clear cell renal cell carcinoma, 2 cases of papillary renal cell carcinoma, 2 cases of chromophobe renal carcinoma, 1 case of renal oncocytoma and 1 case of renal angiomyolipoma. In up to 12-36 months postoperative follow-up, no local recurrence or systemic progression was witnessed. Conclusions: For the treatment of centrally localized renal tumor, MI-OPN via retroperitoneal route is a safe and feasible operation method. Importantly, rupture of the tumor capsule was effectively avoided during tumor resection with the assistance of ultrasonic position-setting. Furthermore, incidence of severe postoperative complications such as bleeding and damage of collection system were not found since surgical wound of kidney sewn tightly and finely. The last but not the least, by placing ice slush in retroperitoneal cavity, impairment of renal function caused by renal artery clamping can be alleviated due to decreased metabolism.
Collapse
Affiliation(s)
- Y N Lu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | | | | | | | | | | |
Collapse
|
13
|
Gao HT, Zhang Y, Sun K, Guo JM, Chen YQ, Chen XL, Shi J, Niu XN, Wang F, Huo L. [Prognostic value of dynamic monitoring of RUNX1-RUNX1T1 transcript in pediatric acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:210-215. [PMID: 28395444 PMCID: PMC7348373 DOI: 10.3760/cma.j.issn.0253-2727.2017.03.007] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Indexed: 12/01/2022]
Abstract
Objective: To investigate the prognostic value of dynamic monitoring of RUNX1-RUNX1T1 transcript in pediatric patients with t (8;21) acute myeloid leukemia (AML) . Methods: The clinical features and RUNX1-RUNX1T1 transcript levels of 55 pediatric t (8;21) AML patients, newly diagnosed from Jan. 2010 to Apr. 2016, were analyzed retrospectively. The relationship between the minimal residual disease (MRD) and prognosis was analysed by dynamic monitoring of RUNX1-RUNX1T1 transcript levels using real-time quantitative PCR (RQ-PCR) technology. Results: The RUNX1-RUNX1T1 transcript levels in bone marrow cells at diagnosis was not related to relapse. After one course of induction therapy, patients with a more than 2 Log reduction of RUNX1-RUNX1T1 transcript levels (>2 Log) had lower 5 years cumulative incidence of relapse (CIR) [ (24.3±8.4) % vs (52.6±9.7) %, χ(2)=9.046, P=0.003], relapse-free survival (RFS) [ (71.6±12.7) % vs (48.1±13.2) %, χ(2)=5.814, P=0.016], and better overall survival (OS) [ (76.9±12.5) % vs (48.9±14.7) %, χ(2)=6.346, P=0.012], compared to patients with a less than 2 Log reduction (a<2 Log) . Multivariate Cox survival analysis suggested that a>2 Log reduction in RUNX1-RUNX1T1 transcript levels after a course of induction therapy was an independent prognostic factor for RFS (HR=0.263, 95%CI 0.081-0.851, P=0.026) and OS (HR=0.214, 95% CI 0.057-0.808, P=0.023) . During consolidation therapy and follow-up period, molecular relapse of 16 cases and hematologic relapse of 13 cases were identified by continuous dynamic monitoring of RUNX1-RUNX1T1 transcript levels, with a median interval of 4.0 (1.5-5.8) months from the molecular relapse to hematologic relapse. 2 cases of molecular relapse who received timely allogeneic hematopoietic stem cell transplantation did not experience hematologic relapse. Conclusion: Dynamic monitoring RUNX1-RUNX1T1 transcript levels by RQ-PCR technique can subdivide patients into relatively low and high risk group, early screen patients at high risk of relapse and provide a scientific basis for precision stratification and risk-adapted therapy for pediatric t (8;21) AML children.
Collapse
Affiliation(s)
- H T Gao
- Department of Hematology, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Chen HX, Hu XY, Guo JM, Wang GM, Wang H. [Outcomes of mini-flank incision for open partial nephrectomy for stage T 1b renal tumor]. Zhonghua Yi Xue Za Zhi 2016; 96:3236-3238. [PMID: 27852391 DOI: 10.3760/cma.j.issn.0376-2491.2016.40.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the safety and efficacy of mini-flank incision for open partial nephrectomy for stage T1b renal tumor. Methods: The data of patients with stage T1b renal tumor who underwent mini-flank incision for open partial nephrectomy between January 2010 to September 2015 were retrospectively reviewed. The Nephron-sparing surgery (NSS) was performed through mini-flank supra-12th rib incision under general anesthesia. Results: A total of 47 patients(31 male and 16 female) were enrolled in our study. The median age was 40 years (range 22-67 years). The Zhongshan Score(ZS score) of renal tumors was 6 in 5 cases, 7 in 13 cases, 8 in 12 cases, 9 in 5 cases, 10 in 6 cases, 11 in 2 cases, 12 in 2 cases, 13 in 2 cases. The length of incision was from 7 cm to 9 cm, with an average of 8.1 cm. The operative time was from 70 min to 150 min, with an average of 96 min. The blood loss was from 50 ml to 600 ml, with an average of 135 ml. The warm ischemia time was from 20 min to 35 min, with an average of 28 min. All of the surgery margin were negative. One patient had fluid in surgical region and relieved after the drainage, and one patient had acute myocardial infarction. The hospital stay time was from 5 d to 14 d, with an average of 8 d. The pathological diagnosis included clear cell carcinoma in 37 cases, multilocular cystic renal carcinoma in 1 case, chromophobe cell tumor in 4 cases, and papillary carcinoma in 5 cases. The mean preoperative serum creatinine level was 87 μmol/L(48-150 μmol/L) and with a mean of 91 μmol/L(52-148 μmol/L) at 3 month follow-up after surgery, and there was no difference between the preoperative and postoperative period(P>0.05). A total of 45 out of 47 patients were followed up for 36 to 78 months, with an average of 60 months, and no one had recurrence or metastasis during follow-up. Conclusion: Mini-flank incision for open partial nephrectomy for renal tumor with stage T1b is safe and effective, which is worthy of promotion and application for small incision and quick recovery.
Collapse
Affiliation(s)
- H X Chen
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | | | | | | | | |
Collapse
|
15
|
Deng DL, Yang HY, Guo JM, Huang C, Gan J, Song FF. [Effects of exogenous enzymes on the degradation of adhesive-dentin interfaces]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:230-234. [PMID: 27117216 DOI: 10.3760/cma.j.issn.1002-0098.2016.04.009] [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: 06/05/2023]
Abstract
OBJECTIVE To compare the effects of exogenous enzymes on the degradation of adhesive-dentin interface. METHODS Forty molars were sectioned to expose the middle-coronal dentin surface and randomly divided into two adhesive systems: an etch-and-rinse adhesive Adper Single Bond 2 and a self-etching adhesive G-Bond. After composite building up, the specimens were then randomly assigned to four groups(n=5 for each group)as follows: group 1, 24 h of water storage(the control group); group 2, six months of water storage; group 3, twelve weeks storage in artificial saliva containing clostridium histolyticum collagenase; group 4, twelve weeks storage in artificial saliva containing cholesterolesterase. The microtensile bond strengths(MTBS)were then tested. The failure modes and nanoleakage were analyzed. RESULTS After aging treatments, the three aging groups showed significantly lower MTBS compared with the control group in both adhesive systems(P<0.05). For etch-and-rinse adhesive Adper Single Bond 2, the MTBS of group 3([19.6±3.5]MPa)was lower than that of group 2([23.4±4.2]MPa)and group 4([24.2±4.2]MPa)(P<0.05). For self-etching adhesive G-Bond, there was no difference on MTBS among different aging groups(P>0.05). SEM observation showed that, compared with the control group, water storage(group 2)and the exogenous enzymes(group 3 and 4)increased the nanoleakage expression(silver deposition)of both adhesive systems. Adhesive failure was the predominant fracture modes in all groups. CONCLUSIONS Storage in artificial saliva containing clostridium histolyticum collagenase or cholesterol esterase could be used to accelerate the degradation process of adhesive-dentine interface.
Collapse
Affiliation(s)
- D L Deng
- Central Clinic, School of Stomatology, Wuhan University, Wuhan 430022, China
| | - H Y Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - J M Guo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - C Huang
- Department of Prosthodontics, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - J Gan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - F F Song
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| |
Collapse
|
16
|
Li PF, Chen SC, Xia T, Jiang XM, Shao YF, Xiao BX, Guo JM. Non-coding RNAs and gastric cancer. World J Gastroenterol 2014; 20:5411-5419. [PMID: 24833871 PMCID: PMC4017056 DOI: 10.3748/wjg.v20.i18.5411] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 02/08/2014] [Accepted: 03/06/2014] [Indexed: 02/06/2023] Open
Abstract
Non-coding RNAs (ncRNAs) play key roles in development, proliferation, differentiation and apoptosis. Altered ncRNA expression is associated with gastric cancer occurrence, invasion, and metastasis. Moreover, aberrant expression of microRNAs (miRNAs) is significantly related to gastric cancer tumor stage, size, differentiation and metastasis. MiRNAs interrupt cellular signaling pathways, inhibit the activity of tumor suppressor genes, and affect the cell cycle in gastric cancer cells. Some miRNAs, including miR-21, miR-106a and miR-421, could be potential markers for the diagnosis of gastric cancer. Long non-coding RNAs (lncRNAs), a new research hotspot among cancer-associated ncRNAs, play important roles in epigenetic, transcriptional and post-transcriptional regulation. Several gastric cancer-associated lncRNAs, such as CCAT1, GACAT1, H19, and SUMO1P3, have been explored. In addition, Piwi-interacting RNAs, another type of small ncRNA that is recognized by gastroenterologists, are involved in gastric carcinogenesis, and piR-651/823 represents an efficient diagnostic biomarker of gastric cancer that can be detected in the blood and gastric juice. Small interfering RNAs also function in post-transcriptional regulation in gastric cancer and might be useful in gastric cancer treatment.
Collapse
|
17
|
Abstract
Four new clerodane diterpenes, namely sagittatayunnanosides A-D (1-4), were isolated from the roots of Tinospora sagittata var. yunnanensis, together with two known compounds, tinospinoside C (5) and tinospinoside E (6). The structures of the four new compounds were well elucidated by extensive analyses of the MS, IR, and 1D and 2D NMR data. The cytotoxic and antifouling activities of compounds 1-6 were evaluated.
Collapse
Affiliation(s)
- Zhi-Yong Jiang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Wen-Juan Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Li-Xiang Jiao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Jun-Ming Guo
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Kai Tian
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Chun-Tao Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| | - Xiang-Zhong Huang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming, Yunnan, P. R. China
| |
Collapse
|
18
|
Jiang ZY, Li SY, Li WJ, Guo JM, Tian K, Hu QF, Huang XZ. Phenolic glycosides from Ficus tikoua and their cytotoxic activities. Carbohydr Res 2013; 382:19-24. [PMID: 24157282 DOI: 10.1016/j.carres.2013.09.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 08/06/2013] [Revised: 09/21/2013] [Accepted: 09/21/2013] [Indexed: 11/17/2022]
Abstract
Four new phenolic glycosides, named 2-ethylene-3,5,6-trimethyl-4-phenol-1-O-β-d-xylopyranosyl-(1→6)-β-d-glucopyranoside (1), 3-methoxy-4-O-β-d-apiofuranosyl-(1→2)-β-d-glucopyranosylpropiophenone (2), 3-hydroxy-1-(4-O-β-d-glucopyranosyl-3-methoxyphenyl)propan-1-one (3) and 4-hydroxy-3,5-bis(3'-methyl-2-butenyl)benzoic acid-O-β-d-glucopyranoside (4), were isolated from the ethanol extract of Ficus tikoua, together with six known compounds: 3,4,5-trimethoxyphenol-1-O-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside (5), 3,4,5-trimethoxyphenol-1-O-β-d-glucopyranoside (6), 3-methoxy-4-O-β-d-apiofuranosyl-(1→6)-β-d-glucopyranosylpropiophenone (7), baihuaqianhuoside (8), 3,5-dimethoxy-4-hydroxybenzoic acid-O-β-d-glucopyranoside (9) and 2-methoxy-4-allylphenyl-1-O-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside (10). The structures of the four new compounds were elucidated by chemical methods and MS and IR, as well as 1D and 2D NMR analyses. The cytotoxicities of the 10 compounds against HeLa, K562, HL60 and HepG2 cell lines were assessed.
Collapse
Affiliation(s)
- Zhi-Yong Jiang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities, Jingming South Road, Chenggong New District, Kunming, Yunnan 650500, PR China.
| | | | | | | | | | | | | |
Collapse
|
19
|
Chen DZ, Xiong HB, Tian K, Guo JM, Huang XZ, Jiang ZY. Two new sphingolipids from the leaves of Piper betle L. Molecules 2013; 18:11241-9. [PMID: 24036513 PMCID: PMC6270174 DOI: 10.3390/molecules180911241] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Revised: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 11/16/2022] Open
Abstract
Two new sphingolipids, pipercerebrosides A (1) and B (2), were isolated from the leaves of Piper betle L. Their structures, including absolute configurations, were determined by spectroscopic analysis and chemical degradation. These two compounds did not show significant cytotoxic activity against the cancer cell lines K562 and HL-60 in a MTT assay.
Collapse
Affiliation(s)
| | | | | | | | - Xiang-Zhong Huang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650500, Yunnan, China
| | - Zhi-Yong Jiang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650500, Yunnan, China
| |
Collapse
|
20
|
Abstract
Two new flavanes, (2R)-4'-hydroxy-2',5,7-trimethoxyflavane (1) and (2R,4R)-2',4'-dihydroxy-5,7-dimethoxyflavan-4-ol (2), were isolated from Uraria clarkei, together with two known compounds 5,7-dimethoxy-4'-hydroxyflavan (3) and 5,7,4'-trimethoxyflavan (4). The structures of the new flavanes were characterized by analyses of the MS, IR, UV, CD, 1D, and 2D NMR data. Cytotoxicity test suggested that compounds 1-4 possessed slight activity against K-562 and Hela cell lines, with the IC50 values ranging from 26.6 to 56.3 μM.
Collapse
Affiliation(s)
- Zhi-Yong Jiang
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities , Kunming , 650500 , China
| | | | | | | | | | | | | |
Collapse
|
21
|
|
22
|
Huang XZ, Cheng CM, Dai Y, Fu GM, Guo JM, Liang H, Wang C. A novel lignan glycoside with antioxidant activity fromTinospora sagittatavar.yunnanensis. Nat Prod Res 2012; 26:1876-80. [DOI: 10.1080/14786419.2011.619190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
23
|
Wang K, Kang SC, Guo JM, Zhang QG, Huang J, Zheng W. [Spatial and temporal distribution of total mercury (T-Hg) in different water bodies of Nam Co, Tibetan Plateau]. Huan Jing Ke Xue 2012; 33:2288-2294. [PMID: 23002603] [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: 06/01/2023]
Abstract
To investigate the tempo-spatial distribution of total mercury (T-Hg) concentration in water bodies in the Nam Co basin on the Tibetan Plateau, inflowing river water and surface lake water samples were collected from 2007 to 2010. The T-Hg concentration and its relationship with precipitation and river runoff were analyzed. The results showed that the average T-Hg concentration was (1.09 +/- 0.73) ng x L(-1) and (2.87 +/- 2.59) ng x L(-1) for surface lake water and river water, respectively, both of which were significantly lower than those of Hg contaminated waters. T-Hg concentration in off-shore lake water was much higher during the monsoon season than in the non-monsoon season, and its level and spatial variation were significantly greater than those in central lake water. T-Hg concentration in river water showed significant seasonal variations with the highest values during the monsoon season and the lowest during the post-monsoon season, which were in accordance with the variations of precipitation. A fixed point observation at Niyaqu River indicated that the temporal changes of the T-Hg concentrations in river water were in accordance with those of the runoff. The spatial distribution features of T-Hg concentrations in inflowing river water varied in different periods, possibly resulting from the differences in drainage areas, background mercury levels in soils, and water supplies for rivers at different locations of the Nam Co basin.
Collapse
Affiliation(s)
- Kang Wang
- Key Laboratory of Tibetan Environment Change and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China.
| | | | | | | | | | | |
Collapse
|
24
|
Guo JM, Kang SC, Zhang QG, Huang J, Wang K. [Temporal and spatial variations of major ions in Nam Co Lake water, Tibetan Plateau]. Huan Jing Ke Xue 2012; 33:2295-2302. [PMID: 23002604] [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: 06/01/2023]
Abstract
In order to investigate the temporal and spatial variations, sources, and major controlling factors of the major ions in Nam Co Lake water, inshore surface water samples were collected at a fixed site (30 degrees 47.27'N, 90 degrees 58.53'E, 4718 m a. s. l.) from 2006 to 2010, at the vertical profiles in the center of the lake in August 2009, and at both the vertical profiles in the center of the lake and at the surface layers of different sites in the Nam Co Lake in October 2010. The results indicated that Na+ was the dominant cation and HCO3- was the dominant anion in the lake water. The concentrations of most ions were higher in monsoon seasons (June - September) and lower in non-monsoon seasons, especially when the lake was frozen (January -April). However, the Ca2+ concentration showed a reverse trend of seasonal variations, namely, higher values in the frozen period and lower in monsoon seasons. Analysis of water samples collected from the vertical profiles indicated that the concentrations of all ions except Ca2+ increased with the depth in nonmonsoon seasons (e. g. October). The major ions in Nam Co Lake were mainly contributed by river input. There were a variety of factors that influenced the temporal and spatial variations of the major ions in the Nam Co Lake, such as evaporation, precipitation, pH values, etc., among which, evaporation was the most important controlling factor, causing the increasing Na+ concentration and decreasing Ca2+ concentration in the lake water.
Collapse
Affiliation(s)
- Jun-Ming Guo
- Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China.
| | | | | | | | | |
Collapse
|
25
|
Li LZ, Deng HX, Lou WZ, Sun XY, Song MW, Tao J, Xiao BX, Guo JM. Growth inhibitory effect of 4-phenyl butyric acid on human gastric cancer cells is associated with cell cycle arrest. World J Gastroenterol 2012; 18:79-83. [PMID: 22228974 PMCID: PMC3251809 DOI: 10.3748/wjg.v18.i1.79] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2011] [Revised: 06/21/2011] [Accepted: 06/28/2011] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the growth effects of 4-phenyl butyric acid (PBA) on human gastric carcinoma cells and their mechanisms.
METHODS: Moderately-differentiated human gastric carcinoma SGC-7901 and lowly-differentiated MGC-803 cells were treated with 5, 10, 20, 40, and 60 μmol/L PBA for 1-4 d. Cell proliferation was detected using the MTT colorimetric assay. Cell cycle distributions were examined using flow cytometry.
RESULTS: The proliferation of gastric carcinoma cells was inhibited by PBA in a dose- and time-dependent fashion. Flow cytometry showed that SGC-7901 cells treated with low concentrations of PBA were arrested at the G0/G1 phase, whereas cells treated with high concentrations of PBA were arrested at the G2/M phase. Although MGC-803 cells treated with low concentrations of PBA were also arrested at the G0/G1 phase, cells treated with high concentrations of PBA were arrested at the S phase.
CONCLUSION: The growth inhibitory effect of PBA on gastric cancer cells is associated with alteration of the cell cycle. For moderately-differentiated gastric cancer cells, the cell cycle was arrested at the G0/G1 and G2/M phases. For lowly-differentiated gastric cancer cells, the cell cycle was arrested at the G0/G1 and S phases.
Collapse
|
26
|
|
27
|
Cheng J, Guo JM, Xiao BX, Miao Y, Jiang Z, Zhou H, Li QN. piRNA, the new non-coding RNA, is aberrantly expressed in human cancer cells. Clin Chim Acta 2011; 412:1621-5. [PMID: 21616063 DOI: 10.1016/j.cca.2011.05.015] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [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: 03/26/2011] [Revised: 04/20/2011] [Accepted: 05/10/2011] [Indexed: 12/14/2022]
Abstract
BACKGROUND Piwi-interacting RNAs (piRNAs) are a novel class of non-coding single strand RNAs. They are involved in germline development, in silencing of selfish DNA elements, and in maintaining germline DNA integrity. The relationship between piRNAs and carcinogenesis has not been shown yet. METHODS The relationship between piRNAs and carcinogenesis was identified by microarray screening and real-time quantitative reverse transcription-polymerase chain reaction technology. The piR-651 inhibitor was transfected into gastric cancer cells to assess its influence on cell growth. Cell cycle analysis was used to reveal the cellular mechanisms of piR-651 in the genesis of gastric cancer. RESULTS piR-651 expression was upregulated in gastric cancer tissues compared with paired non-cancerous tissues. The levels of piR-651 were associated with TNM stage (P=0.032). The expression of piR-651 in gastric, colon, lung, and breast cancer tissues was higher than that in paired non-cancerous tissues. The upregulated expression of piR-651 was confirmed in several cancer cell lines including gastric, lung, mesothelium, breast, liver, and cervical cancer cell lines. The growth of gastric cancer cells was inhibited by a piR-651 inhibitor and arrested at the G(2)/M phase. CONCLUSION piR-651 might be involved in the development of gastric cancer and other cancers, and is a potential marker for cancer diagnosis.
Collapse
Affiliation(s)
- Jia Cheng
- Ningbo University School of Medicine, Ningbo, China
| | | | | | | | | | | | | |
Collapse
|
28
|
Huang XZ, Cheng CM, Yin Y, Guo JM, Liang H, Dai Y. [Studies on the chemical constituents from the roots of Tinospora sagittata var. yunnanensis (II)]. Zhong Yao Cai 2010; 33:1574-1576. [PMID: 21355194] [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 study the chemical constituents from the roots of Tinospora sagittata var. yunnanensis. METHODS Various chromatographic techniques were used to isolate and purify the constituents. The structures of these compounds were elucidated on the basis of spectral analysis. RESULTS Seven compounds were isolated from the plant and their structures were identified as tinophylloloside (1), epitinophylloloside (2), 2-deoxycrustecdysone (3), polypodine B (4) , (+)-5'-methoxyisolariciresinol 3alpha-O-beta-D-glucopyranoside (5), geniposide (6), adenine (7). CONCLUSION All compounds are isolated from the plant for the first time,and compounds 4, 5, 6 and 7 are isolated firstly from the genus.
Collapse
Affiliation(s)
- Xiang-Zhong Huang
- Key Laboratory of Ethnic Medicine Resource Chemistry,State Ethnic Affairs Commission & Ministry of Education,Yunnan University of Nationalities, Kunming 650500, China.
| | | | | | | | | | | |
Collapse
|
29
|
Long XE, Gong ZH, Pan L, Zhong ZW, Le YP, Liu Q, Guo JM, Zhong JC. Suppression of CDK2 expression by siRNA induces cell cycle arrest and cell proliferation inhibition in human cancer cells. BMB Rep 2010; 43:291-6. [PMID: 20423616 DOI: 10.5483/bmbrep.2010.43.4.291] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cyclin-dependent kinase 2 (CDK2) is a member of serine/ threonine protein kinases, which initiates the principal transitions of the eukaryotic cell cycle and is a promising target for cancer therapy. The present study was designed to inhibit cdk2 gene expression to induce cell cycle arrest and cell proliferation suppression. Here, we constructed a series of RNA interference (RNAi) plasmids which can successfully express small interference RNA (siRNA) in the transfected human cells. The results showed that the RNAi plasmids containing the coding sequences for siRNAs down-regulated the cdk2 gene expression in human cancer cells at the mRNA and the protein levels. Furthermore, we found that the cell cycle was arrested at G0G1 phases and the cell proliferation was inhibited by different siRNAs. These results demonstrate that suppression of CDK2 activity by RNAi may be an effective strategy for gene therapy in human cancers.
Collapse
Affiliation(s)
- Xiang-E Long
- School of Medicine, Ningbo University, 818 Fenghua Road, Ningbo 315211, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Zhou H, Guo JM, Lou YR, Zhang XJ, Zhong FD, Jiang Z, Cheng J, Xiao BX. Detection of circulating tumor cells in peripheral blood from patients with gastric cancer using microRNA as a marker. J Mol Med (Berl) 2010; 88:709-17. [PMID: 20349219 DOI: 10.1007/s00109-010-0617-2] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 03/08/2010] [Accepted: 03/09/2010] [Indexed: 12/13/2022]
Abstract
Recently, the detection of occult cancer cells in peripheral blood has received a great deal of attention regarding the prediction of postoperative cancer recurrence and for novel strategies of adjuvant therapy. The aim of this study was to establish a new molecular diagnostic method of detecting circulating tumor cells. Gastric cancer SGC-7901 cells in 2 ml blood from healthy volunteers were serially diluted. Additional peripheral blood samples were collected from 90 patients and 27 healthy volunteers. Real-time reverse transcription-polymerase chain reaction was used to detect the levels of microRNA-106a (miR-106a) and microRNA-17 (miR-17). Receiver operating characteristics (ROC) curves were constructed. In recovery experiments, a significant correlation between the number of cancer cells and the levels of both miR-106a (r = -0.906, p = 0.037) and miR-17 (r = -0.912, p = 0.031) was found. In preoperative and postoperative patient groups, miR-106a and miR-17 levels were significantly higher than those in controls. The areas under the ROC curve for miR-106a, miR-17, and combination were 0.684 (p = 0.0066), 0.743 (p = 0.0001), and 0.741 (p = 0.0002), respectively. Our results indicate that the detection of miRNA in peripheral blood may be a novel tool for monitoring circulating tumor cells in patients with gastric cancers.
Collapse
Affiliation(s)
- Hui Zhou
- Ningbo University School of Medicine, Ningbo 315211, China
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Xiao BX, Guo JM, Zhong JC. [Effect of microRNA on proliferation of human tongue carcinoma Tca8113 cells]. Zhonghua Kou Qiang Yi Xue Za Zhi 2010; 45:152-154. [PMID: 20450682] [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: 05/29/2023]
Abstract
OBJECTIVE To investigate the effects of microRNA (miRNA) on proliferation of cultured human squamous cell carcinoma of tongue Tca8113 cells. METHODS The mimics or inhibitors of miRNA-31 or miRNA-139 were transfected into Tca8113 cells using liposome. Tca8113 cell proliferation was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. RESULTS The absorbance (A) values of control group at 24 h, 48 h and 72 h were 0.125 +/- 0.002, 0.169 +/- 0.002 and 0.216 +/- 0.004, respectively. The mimics of miRNA-31 increased Tca8113 cell proliferation, with A values increasing to 0.136 +/- 0.001 (P < 0.001), 0.186 +/- 0.004 (P < 0.001) and 0.249 +/- 0.012 (P < 0.01), respectively. The inhibitors of miRNA-139 also increased A values to 0.148 +/- 0.002 (P < 0.001), 0.214 +/- 0.002 (P < 0.001) and 0.250 +/- 0.009 (P < 0.01), respectively. Contrast with these results, the inhibitors of miRNA-31 decreased Tca8113 cell proliferation, with A values decreasing to 0.145 +/- 0.001 and 0.155 +/- 0.011 (both of P < 0.001) at 48 h and 72 h, respectively. The mimics of miRNA-139 also decreased A to 0.135 +/- 0.001 and 0.170 +/- 0.009 (both of P < 0.001). CONCLUSIONS miRNA-31 and miRNA-139 play an important role in the carcinogenesis of human tongue carcinomas. It may become a new method for the treatment of tongue carcinomas by adjustment the activities of miRNA.
Collapse
Affiliation(s)
- Bing-Xiu Xiao
- Department of Histology and Embryology, School of Medicine, Ningbo University, Ningbo Zhejiang 315211, China.
| | | | | |
Collapse
|
32
|
Guo JM, Xiao BX, Lou YR, Wang DH, Yan CH, Zhan L, Zhao WH. The effects of all-trans-retinoic acid on cell cycle and alkaline phosphatase activity in pancreatic cancer cells. Med Chem 2007; 2:457-61. [PMID: 17017984 DOI: 10.2174/157340606778250298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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
Pancreatic cancer is one of the tumors with the highest mortality, poorly responding to available chemotherapeutic agents. The objective of this study was to study the anticancer effects of all-trans retinoid acid, a functional form of vitamin A, on pancreatic cancer cells. Human pancreatic cancer MiaPaCa-2 cells were treated with 1, 5, 10, 20, 30, 40 and 50 microM ATRA for 1, 2, 3, 4, 5 or 6 d, respectively. Cell growth was determined by MTT viability assay. The cell cycle distribution and the alkaline phosphatase (ALP) activity were analyzed by flow cytometry and chemical analyzer, respectively. The results show that ATRA significantly inhibited the growth of MiaPaCa-2 cells at 40 and 50 microM. ATRA arrested pancreatic cancer cells at G0/G1 phase. The sub-G1 peak and DNA fragmentation were observed. There were time and dose dependent increases in alkaline phosphatase activity (ALP), an indicator of cell differentiation, upon treatment with ATRA when compared to controls. In conclusion, ATRA has an inhibitory effect on the cell growth of MiaPaCa-2, and its tumor suppressive effect is by means of cell cycle arrest and apoptosis induction.
Collapse
Affiliation(s)
- J M Guo
- Ningbo University School of Medicine, Ningbo 315211, China.
| | | | | | | | | | | | | |
Collapse
|
33
|
Guo JM, Xiao BX, Kang GZ, Liu DH, Chen H, Zhang S, Zhang XN. Suppression of telomerase activity and arrest at G1 phase in human cervical cancer HeLa cells by all-trans retinoic acid. Int J Gynecol Cancer 2006; 16:341-6. [PMID: 16445656 DOI: 10.1111/j.1525-1438.2006.00353.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/30/2022] Open
Abstract
Of all neoplasms found in women, cervical cancer has the third highest incidence and causes the fourth most deaths. All-trans retinoic acid (ATRA) may be with chemopreventive potential on cervical cancer, but the mechanisms underlying is not clear. To investigate the mechanisms, human cervical cancer HeLa cells were treated with ATRA for 1, 2, 3, or 4 days in vitro. We found that ATRA inhibited the growth of HeLa cells in a dose-dependent manner at the concentrations from 0.3 to 9.6 mumol/L. Flow cytometric analysis showed that HeLa cells were arrested at G0/G1 phase by ATRA, and the aneuploidy was found when cells were treated for 4 days, which is the first report that ATRA causes aneuploid cycle in HeLa cells. The expression of human telomerase catalytic subunit messenger RNA was decreased remarkably by ATRA. These findings suggested that the inhibition of telomerase activity and arrest of cells at G0/G1 phase might be the key steps through which ATRA inhibits the proliferation of HeLa cells. Our results provide a possible mechanistic explanation for the growth inhibitory effect of ATRA on HeLa cells. Therefore, retinoids may have therapeutic potential to complement current treatments of cervical cancers.
Collapse
Affiliation(s)
- J M Guo
- School of Medicine, Ningbo University, Ningbo 315211, China.
| | | | | | | | | | | | | |
Collapse
|
34
|
Yao F, Guo JM, Xu CF, Lou YL, Xiao BX, Zhou WH, Chen J, Hu YR, Liu Z, Hong GF. Detecting AFP mRNA in peripheral blood of the patients with hepatocellular carcinoma, liver cirrhosis and hepatitis. Clin Chim Acta 2005; 361:119-27. [PMID: 15993394 DOI: 10.1016/j.cccn.2005.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [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: 03/23/2005] [Revised: 05/03/2005] [Accepted: 05/05/2005] [Indexed: 12/27/2022]
Abstract
BACKGROUND The low frequency of disseminated carcinoma cells in the blood now makes immunomagnetic bead sorting and reverse transcriptase-polymerase chain reaction (RT-PCR) technique more popular. METHODS Three milliliters of peripheral blood were collected from 91 patients and 18 normal donors. The circulating carcinoma cells were enriched with CD45 and Ber-EP4 immunomagnetic beads. The alpha-fetoprotein (AFP) mRNA was amplified with nested RT-PCR. RESULTS The total positive detection rate was 72.1%, 43.8%, 25.0%, 100%, and 66.7% in patients with hepatocellular carcinoma (HCC) untreated, liver cirrhosis (LC), hepatitis, metastasis liver cancer, and postsurgery of hepatocellular carcinoma, respectively. There was a significant difference among the patients with HCC, LC and hepatitis (HCC vs. LC, P<0.05; HCC vs. hepatitis, P<0.01) and between Class A and B of the HCC patients (P<0.05). Meanwhile, AFP mRNA was markedly expressed in HCC patients compared to the patients with no HCC (LC and hepatitis). The levels of aspartate transaminase (AST) and gamma-glutamyltranspeptidase (GGT) were significantly different in AFP mRNA-positive patients with autoimmune chronic active hepatitis B (CAHB) or LC in contrast to the corresponding negative patients. CONCLUSION Combining negative and positive immunomagnetic bead sorting and RT-PCR technique can effectively detect circulating tumor cells. AFP mRNA is a more reliable marker of metastasis compared to serum AFP.
Collapse
Affiliation(s)
- Feng Yao
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Zhao WH, Guo JM, Xiao BX, Guan Z, Xiao DS. Effects of survivin siRNA expression plasmid on proliferation of MGC-803 cells. Shijie Huaren Xiaohua Zazhi 2005; 13:2302-2305. [DOI: 10.11569/wcjd.v13.i19.2302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To silence the expression of survivin gene in MGC-803 cells by the siRNA expression vector-based RNA interference (RNAi) technique, and to investigate its effects on the proliferation of MGC-803 cells.
METHODS: The survivin siRNA expression plasmid was transfected into MGC-803 cells by lipofectamine. Morphological changes of the cells were observed under invert microscope. The expression of survivin mRNA was determined by reverse transcription-polymerase chain reaction (RT-PCR). The changes of cell cycle and the cell proliferation were analyzed by flow cytometry and MTT assay, respectively.
RESULTS: Abnormal morphological changes of MGC-803 cells were observed in the group transfected with the survivin siRNA expression plasmid. The survivin siRNA expression plasmid significantly down-regulated the expression of survivin mRNA in MGC-803 cells with a percentage of 48.2% ( vs empty controls), and it arrested the cell cycle in G1 phase (77.4%). The cell proliferation was significantly inhibited, and the optical density in siRNA-transfected cells was markedly lower than that in the empty controls (24 h: 0.272 ± 0.048 vs 0.576 ± 0.018; 48 h: 0.270 ± 0.060 vs 0.809 ± 0.027; 72 h: 0.143 ± 0.046 vs 1.015 ± 0.075; all P < 0.01). The growth inhibitory rates of MGC-803 cells were 53.4%, 66.7%, and 86.3% after 24, 48, and 72 h of the transfection, respectively.
CONCLUSION: The expression of survivin in MGC-803 cells can be down-regulated by the plasmid-based RNAi technique, and the down-regulation can inhibit the cell proliferation in vitro.
Collapse
|
36
|
Dai DJ, Lu CD, Guo JM, Zhang J. [Effect of inhibiting survivin expression with antisense oligodeoxynucleotides on sensitivity of hepatocellular carcinoma cell lines HepG2 and HepG2/ADM to adriamycin]. Ai Zheng 2005; 24:951-7. [PMID: 16086872] [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: 05/03/2023]
Abstract
BACKGROUND & OBJECTIVE Survivin deserves attention as a selective target for cancer therapy because it is silenced in differentiated adult tissues, but is expressed in a variety of human tumors, and is involved in tumorigenesis and chemoresistance. Antisense oligodeoxynucleotides (ASODN) can be used to inhibit the expression of survivin to induce apoptosis or enhance chemosensitivity of tumor cells. This study was to investigate the effect of inhibiting survivin expression with ASODN on sensitivity of hepatocellular carcinoma cell lines HepG2 and HepG2/ADM to Adriamycin (ADM). METHODS The expression of survivin in HepG2 and HepG2/ADM cells was detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blot. Sensitivities of HepG2 and HepG2/ADM cells to ASODN and ADM were detected by MTT assay. ASODN was transfected into HepG2 and HepG2/ADM cells; expression of survivin was detected by RT-PCR. Synergetic effects of low concentrations of ASODN and subtoxic concentrations of ADM on HepG2 and HepG2/ADM cells were detected by isobolography. The expression of active Caspase-3 and cell apoptosis were evaluated by flow cytometry. RESULTS mRNA level of survivin in HepG2/ADM cells was 15 folds as that in HepG2 cells; protein level of Survivin in HepG2/ADM cells was 18 folds as that in HepG2 cells. Both HepG2 and HepG2/ADM cells were sensitive to ASODN-mediated cytotoxicity in a concentration-dependent manner. The 50% inhibitory concentration (IC(50)) of ASODN was 317.90 nmol/L for HepG2 cells, and 480.74 nmol/L for HepG2/ADM cells. The maximal cytotoxicity was observed at 500 nmol/L of ASODN; the inhibitory rate was 71.10% in HepG2 cells, and 53.67% in HepG2/ADM cells. The IC(50) of ADM was 0.36 microg/ml for HepG2 cells, and 2.12 microg/ml for HepG2/ADM cells; the resistance index was 6. ASODN efficiently down-regulated mRNA level of survivin in both cell lines in a concentration-dependent manner. For HepG2 cells, with the IC(50) of 271.93 nmol/L, the maximal effect of ASODN was achieved at a concentration of 400 nmol/L, at which mRNA level of survivin was down-regulated by 69.12%; for HepG2/ADM cells, with the IC(50) of 365.72 nmol/L, its maximal effect was achieved at a concentration of 400 nmol/L, at which mRNA level of survivin was down-regulated by 60.01%. ASODN in combination with ADM synergetically enhanced sensitivity of HepG2 cells to ADM by 6 folds, and HepG2/ADM cells by 4 folds. Combination treatment of ASODN and ADM gradually enhanced activity of Caspase-3 and cell apoptosis in a concentration-dependent manner, and resulted in caspase-dependent cell death in HepG2/ADM cells. CONCLUSION Inhibiting survivin expression with ASODN could sensitize hepatocellular carcinoma cells to ADM, and the combination of ASODN and ADM may be a reasonable approach for clinical treatment of ADM-resistant hepatocellular carcinoma.
Collapse
Affiliation(s)
- De-Jian Dai
- Department of General Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P. R. China
| | | | | | | |
Collapse
|
37
|
Abstract
AIM: To evaluate the effects of survivin on cell proliferation and apoptosis in liver cancer.
METHODS: MTT assay was used to generate and optimize phosphorothioate antisense oligonucleotides (ODNs)-LipofectamineTM2000 (LiP) compound by varying ODNs (μg):LiP (μL) ratios from 1:0.5 to 1:5. Then, liver cancer cells (HepG2) were transfected with the compound. By using RT-PCR and Western blot, the expression levels of survivin mRNA and proteins were detected in HepG2 cells treated with antisense compounds (ODNs:LiP = 1:4), and compared with those treated with sense compounds (1:4) as control. MTT assay was applied to the determination of cell proliferation in HepG2 cells. Active caspase-3 was evaluated by flow cytometric analysis. The morphological changes were assessed by electron microscopy. Laser scanning confocal microscopy was performed to detect the subcellular localization of survivin proteins in treated and untreated cells.
RESULTS: Antisense compounds (1:4) down-regulated survivin expression (mRNA and protein) in a dose-dependent manner with an IC50 of 250 nmol/L. Its maximum effect was achieved at a concentration of 500 nmol/L, at which mRNA and protein levels were down-regulated by 80%. The similar results were found in MTT assay. Antisense compound (1:4)-treated cells revealed increased caspase-3-like protease activity compared with untreated cells. Untreated cells as control were primarily negative for the presence of active-caspase-3. As shown by transmission electron microscopy, treated cells with antisense compounds (1:4) resulted in morphological changes such as blebbing and loss of microvilli, vacuolization in the cytoplasm, condensation of the cytoplasm and nuclei, and fragmented chromatin. Immunofluorescence analysis confirmed the presence of survivin protein pool inside the cytoplasm in untreated cells. Labeled-FITC immunofluorescence staining of survivin clearly showed that survivin was distributed mainly in a spotted form inside the cytoplasm. Whereas cells treated with antisense compounds were rare and weak inside the cytoplasm.
CONCLUSION: Down-regulation of survivin expression induced by the antisense compounds reduces tumor growth potential, promotes apoptosis and affects the localization of survivin proteins in HepG2 cells. Furthermore, survivin protein is a key molecule associated with proliferation and apoptosis, and antisense oligonucleotides targeting survivin have a bright prospect in the therapy of liver cancer.
Collapse
Affiliation(s)
- De-Jian Dai
- Department of Surgery, Second Affiliated Hospital of Zhejiang University Medical School, Hangzhou, Zhejiang Province, China
| | | | | | | | | | | | | |
Collapse
|
38
|
Guo JM, Xiao BX. [Gene studies and nobel prize]. Yi Chuan 2005; 27:101-9. [PMID: 15730969] [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: 05/01/2023]
Abstract
Gene is a DNA sequence which can be expressed and produces gene products (protein or RNA). By 2003, there are 51 Nobel Prize owners related to gene studies. Among them, 44 persons are in physiology or medicine (account for 24.72% of total 178), 7 persons are in chemistry (account for 5.69% of total 123). The paper reviews them in following 6 aspects: Drosophlie melanogaster is a good material for gene study; the double helix model of DNA structure provides a hard foundation in gene study; the studies on gene regulation illuminate many functions of gene; genetic central dogma researches created 11 Noble Prize laureates; gene engineering technologies make possible to modify and use genes; and the thorough studies of gene characteristic made us easier to understand many life phenomena.
Collapse
Affiliation(s)
- Jun-Ming Guo
- School of Medicine, Ningbo University, Zhengjiang Province, Ningbo 315211, China.
| | | |
Collapse
|
39
|
Guo JM, Kang GZ, Xiao BX, Liu DH, Zhang S. Effect of daidzein on cell growth, cell cycle, and telomerase activity of human cervical cancer in vitro. Int J Gynecol Cancer 2004; 14:882-8. [PMID: 15361199 DOI: 10.1111/j.1048-891x.2004.14525.x] [Citation(s) in RCA: 31] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Phytoestrogens are some plant compounds exhibiting estrogen-like activities. However, some studies have shown that they also affect the growth of some nonhormone-dependent diseases. In this study, daidzein--one of the most common phytoestrogens--was used to investigate its effects on human cervical cancer cells HeLa in vitro. First, the cell growth was measured by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Then, the distributions of cell cycle and apoptosis were analyzed with the help of flow cytometry. Finally, the telomerase activity was detected by using real-time quantitative reverse transcription-polymerase chain reaction. The results showed that at the concentrations from 6.25 to 100 micro mol/l, daidzein inhibited the growth of HeLa cells. Flow cytometric analysis showed that cancer cells were arrested at G(0)/G(1) or G(2)/M phase with daidzein. The inductive effects of apoptosis were more obviously observed in low-concentration groups. After HeLa cells were treated with daidzein, the expression of human telomerase catalytic subunit mRNA decreased. These meant that daidzein affected human nonhormone-dependent cervical cancer cells in several ways, including cell growth, cell cycle, and telomerase activity in vitro.
Collapse
Affiliation(s)
- J M Guo
- School of Medicine, Ningbo University, Ningbo, China.
| | | | | | | | | |
Collapse
|
40
|
Guo JM, Xiao BX, Liu DH, Grant M, Zhang S, Lai YF, Guo YB, Liu Q. Biphasic effect of daidzein on cell growth of human colon cancer cells. Food Chem Toxicol 2004; 42:1641-6. [PMID: 15304310 DOI: 10.1016/j.fct.2004.06.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [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: 10/21/2003] [Accepted: 06/02/2004] [Indexed: 10/26/2022]
Abstract
Colorectal cancer is one of the most common cancers in the world, poorly responding to available chemotherapeutic agents. To investigate whether natural molecules can inhibit colon cancer progression, we investigated a principle phytoestrogen found in soybean known as daidzein, and determined its effects on the human colon cancer cell line LoVo. LoVo cells were treated with 0.1, 1, 5, 10, 50 and 100 microM daidzein for 2, 3, 4 or 5 d. The results indicated that daidzein stimulated the growth of LoVo cells at 0.1 and 1 microM whereas at higher concentrations (10, 50 and 100 microM) cell growth was inhibited in a dose-dependent manner. Treatment of daidzein at 10, 50 and 100 microM resulted in cell cycle arrest at G0/G1 phase, DNA fragmentation and increases in caspase-3 activity. There were no changes in alkaline phosphatase activity (ALP), an indicator of cell differentiation, upon treatment with daidzein when compared to controls. These results indicate that daidzein has a biphasic effect on LoVo cell growth and its tumor suppressive effect is by means of cell cycle arrest and apoptosis but not through cell differentiation.
Collapse
Affiliation(s)
- J M Guo
- School of Medicine, Ningbo University, Ningbo 315211, China.
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
AIM: To study the effects of daidzein on human pancreatic cancer cells in vitro.
METHODS: Human estrogen-receptor (ER)-positive pancreatic cancer cells MiaPaCa-2 and ER-negative pancreatic cancer cells PANC-1 were treated by 0.1 μmol/L, 1 μmol/L, 10 μmol/L, 25 μmol/L, 50 μmol/L, 75 μmol/L and 100 μmol/L of daidzein, respectively. Its antiproliferative effect was studied by MTT assay.
RESULTS: Daidzein inhibited the growth of MiaPaCa-2 and PANC-1 cells at the concentrations from 0.1 μmol/L to 100 μmol/L. A dose- and time-dependent manner was found. The IC50 of daidzein on MiaPaCa-2 and PANC-1 cells was 45 μmol/L and 75 μmol/L, respectively. After MiaPaCa-2 cells were treated by daidzein for 3 d and at the concentrations more than IC50, the inhibitory manner was identical and the inhibition appeared a saturation phenomenon, but the inhibitory manner of daidzein on PANC-1 cells was different from that of MiaPaCa-2 cells.
CONCLUSION: Daidzein has antiproliferative effects on human estrogen-receptor-positive and negative pancreatic cancer cells, but their mechanisms may be different.
Collapse
Affiliation(s)
- Jun-Ming Guo
- School of Medicine, Ningbo University, Ningbo 315211, Zhejiang Province, China.
| | | | | | | | | |
Collapse
|
42
|
Guo JM, Zhang XY, Chen HL, Wang GM, Zhang YK. Structural alterations of sugar chains in urine fibronectin from bladder cancer patients and its enzymatic mechanism. J Cancer Res Clin Oncol 2001; 127:512-9. [PMID: 11501752 DOI: 10.1007/s004320100245] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 10/27/2022]
Abstract
PURPOSE To study the structural alterations of asparagine-linked sugar chains (N-glycans) on urine fibronectin (Fn) from bladder cancer (BCa) patients and its enzymatic mechanism. METHODS Eight pairs of urine samples from eight BCa patients pre-operation and 3 months post-operation (which proved to be normal) were collected, and the Fn in the urine samples was purified with an anti-Fn antibody affinity column. Different lectins labeled with horseradish peroxidase (HRP) were used as probes to bind the glycans of purified Fn immobilized on membrane. Enhanced chemiluminescence (ECL) reagent was adopted to estimate the activity of the bound HRP as a measure of the binding affinity of the Fn glycans to lectins, and expressed as luminescent light units (LLU). The enzymatic mechanism of the structural alteration of N-glycans in BCa Fn was studied by determination of GnT activities using the HPLC method and fluorescent-labeled substrate. RESULTS The mean LLU of BCa Fn was only 18.1% of the normal samples when Con A-HRP were used as probes, while the mean LLU of the BCa group was 3.34 times and 3.26 times higher than normal for the DSA-HRP and WGA-HRP probes, respectively. The individual data of the patients did not overlap between the BCa sample and normal counterparts, indicating that the positive rates were 100%, regardless of which lectin-HRP was used. These results reveal that the antennary number and bisecting GlcNAc structure are increased in the N-glycans of urine Fn from BCa assessed according to the binding specificity of ConA, DSA, and WGA. In addition, the binding affinities of urine Fn with DSA and WGA were correlated to pathological stage, and the affinity of Fn with WGA was also correlated with pathological grade. The results of GnT determination showed that GnT-III, IV, and V in BCa tissues increased by 34.0, 18.1, and 1.6 times, respectively, in normal bladder tissues which were at least 5 cm away from the BCa of the same bladder. These findings were compatible with the structural changes of N-glycans in BCa Fn, since GnT-III and GnT-IV/V are responsible for the synthesis of bisecting GlcNAc and the increase of antennary number in N-glycans, respectively. CONCLUSIONS (1) The highest elevation of GnT-III and the close relationship between the WGA binding of BCa Fn with the pathological stage and grade of BCa indicate that the increase of bisecting GlcNAc in N-linked glycans contributes more to the malignant behavior of BCa than the increase of GnT-IV, GnT-V, and the antennary number. (2) The correlation of altered activities of bladder GnTs with the abnormal structures of urine Fn in BCa patients indicates that the urine Fn is synthesized in the bladder. (3) The lectin-HRP assay for analyzing the structure of N-glycans in urine Fn may be used as a simple and accurate diagnosis method for BCa in the future.
Collapse
Affiliation(s)
- J M Guo
- Department of Urology, Zhong-Shan Hospital, School of Medicine, Fu-Dan University, Shanghai, China
| | | | | | | | | |
Collapse
|
43
|
Zhang DL, Li LJ, Xia GT, He XY, Gao BX, Bai XH, Huang GS, Liu SG, Yan LF, Fang FD, Hu CL, Wang LJ, Jiang HH, Feng AM, Zhang GM, An SG, Ren YQ, Guo JM, Hu SX, Fan JX, Niu YL, Song ZJ, Li Y, Fan SJ. [Analyses of chromosomal karyotypes and cytogenetic variations of animal cell lines]. Yi Chuan Xue Bao 2001; 28:327-44. [PMID: 11329875] [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: 02/19/2023]
Abstract
After the master cell stock(mcs) and working cell bank of more than 30 different strains of 7 animal kidney cell lines (F-81 or CRFK cell line, MDCK cell line, Vero or Vero-2 cell line, MA-104 cell line and BHK-21 cell line) were established in China, the chromosomal number variations and structural aberrations of the above lines, primary feline or canine kidney cell (FKC or CKC) and HeLa cell line were investigated and their karyotypes of routine or Giemsa chromosomal bands were analyzed. The carcinogenesis or tumorigenicity testing of these cells in about 700 nude mice and for colony formation in soft agar (SA) and for agglutination under different concentration of plant lectins was carried out. Both tumorigenicity-negative strains of F-81, CRFK, Vero or Vero-2 lines and very-low-tumorigenicity strains of MDCK line were successfully selected and evaluated for the production of canine or feline combination viral vaccines, which are free of infectious agents, and described with respect to cytogenetic characteristics and tumorigenicity. Rate of modal chromosome number represents the ratio of cell number having modal chromosome number to all the split cell number analyzed at random. Rate of difference represents the ratio of difference of the rate of modal chromosome number between mcs (master cell stock) + n and mcs passages. The chromosomal analysis results showed that the ratio of difference of the rate of modal chromosome number between mcs + n and mcs passages was not more than 5%-15% and the structure aberrations was generally 0%-3%, not more than 5%-10%, thus the hereditary character of cell lines is comparatively stable without significant difference between different passages. The genetic characteristics of chromosomal number of cell lines determines their tumorigenicity, but it is species specific. Experimental models were established for the researches on the prevention and prophylaxis of malignant tumors or cancers and their genetically biological characteristics. Tests showed that there was correlation among cell line chromosome number variations, anchorage independence in soft agar, agglutination under plant lectins and tumor-forming ability in nude mice. Since testing in vitro is more economic, simpler, faster, and is thought to be reliable, we recommend plant lectins followed by SA or analysis of karyotypes as the initial means for monitoring tumorigenicity of animal cell line in nude mice.
Collapse
Affiliation(s)
- D L Zhang
- Department of Immunology, Peking University Health Science Center, Beijing 100083, China.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Guo JM, Guo SY, Cai MY, Huang XT, Zhang Y. [Determination of 2,5-ditertiary butylhydroquinone by gas chromatography]. Se Pu 1999; 17:596-7. [PMID: 12552704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Antioxidant 2,5-ditertiary butylhydroquinone was prepared from hydroquinone and tertiary butyl alcohol. A normalized gas chromatographic method for 2,5-ditertiary butylhydroquinone by using an OV-101 fused silica capillary column and flame ionization detector is reported. The quantities of hydroquinone, tertiary butylbenzoquinone, tertiary butylhydroquinone and 2,5-ditertiary butylbenzoquinone mixed with 2,5-ditertiary butylhydroquinone were also determined.
Collapse
Affiliation(s)
- J M Guo
- College of Food & Biological Eng., South China Univ. of Tech., Guangzhou 510641, China
| | | | | | | | | |
Collapse
|
45
|
Guo JM, Lin XJ, Wang SG. [Lateral exposure of the submandibular gland with gland pressing downward]. Shanghai Kou Qiang Yi Xue 1997; 6:186. [PMID: 15160233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- J M Guo
- Department of Dentistry, Qingdao Astyclinic. Shandong 266011, China
| | | | | |
Collapse
|
46
|
Guo JM, Zhang CP. [Harvest of the free radial forearm flap: Experience in 36 cases]. Shanghai Kou Qiang Yi Xue 1997; 6:104. [PMID: 15159943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- J M Guo
- Department of Dentistry, Qingdao Astyclinic. Shandong 266011,China
| | | |
Collapse
|
47
|
Yi L, Guo JM, Zhang JH, Qiu JZ, Wang WQ, Gu RP. [Repair of cleft palate in 16 infants: Clinical outcomes]. Shanghai Kou Qiang Yi Xue 1996; 5:181. [PMID: 15160020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- L Yi
- Department of Dentistry, Qingdao Astyclinic. Qingdao 266003, China
| | | | | | | | | | | |
Collapse
|
48
|
Guo JM, Chang C, Li NC, Douglas KT. Interactions of small ligands with Busycon canaliculatum and Limulus polyphemus hemocyanins as studied by ultraviolet spectrophotometry and 1H and 19F nuclear magnetic resonance. Biochemistry 1978; 17:452-7. [PMID: 23149 DOI: 10.1021/bi00596a012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
49
|
Abstract
The interactions of H+,
Zn2+, and Cu2+ with adenine and guanine have been
investigated by N.M.R. studies in dimethyl sulphoxide (Me2SO). The
compounds Zn(adenine)HCl3, Zn(guanine)HCl3, (adenine)HCl,
(adenine)2HCl, (guanine)HCl,H2O and (guanine-H)2[ZnCl4]4H2O
have also been prepared and studied in Me2SO. The last compound as
well as (adenine)2HCl have not been reported previously. N.m.r. spectra are
concentration-dependent and also depend upon the hydrogen ion activity. This
work has shown that there is little correlation between solid state structures
and interactions in solution and, further, that selective line broadening by
the para- magnetic Cu2+ ion is not unequivocally diagnostic of the
binding site in these systems.
Collapse
|