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Chen J, Amoozgar Z, Liu X, Aoki S, Liu Z, Shin SM, Matsui A, Hernandez A, Pu Z, Halvorsen S, Lei PJ, Datta M, Zhu L, Ruan Z, Shi L, Staiculescu D, Inoue K, Munn LL, Fukumura D, Huang P, Sassi S, Bardeesy N, Ho WJ, Jain RK, Duda DG. Reprogramming the Intrahepatic Cholangiocarcinoma Immune Microenvironment by Chemotherapy and CTLA-4 Blockade Enhances Anti-PD-1 Therapy. Cancer Immunol Res 2024; 12:400-412. [PMID: 38260999 PMCID: PMC10985468 DOI: 10.1158/2326-6066.cir-23-0486] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 11/05/2023] [Accepted: 01/19/2024] [Indexed: 01/24/2024]
Abstract
Intrahepatic cholangiocarcinoma (ICC) has limited therapeutic options and a dismal prognosis. Adding blockade of the anti-programmed cell death protein (PD)-1 pathway to gemcitabine/cisplatin chemotherapy has recently shown efficacy in biliary tract cancers but with low response rates. Here, we studied the effects of anti-cytotoxic T lymphocyte antigen (CTLA)-4 when combined with anti-PD-1 and gemcitabine/cisplatin in orthotopic murine models of ICC. This combination therapy led to substantial survival benefits and reduction of morbidity in two aggressive ICC models that were resistant to immunotherapy alone. Gemcitabine/cisplatin treatment increased tumor-infiltrating lymphocytes and normalized the ICC vessels and, when combined with dual CTLA-4/PD-1 blockade, increased the number of activated CD8+Cxcr3+IFNγ+ T cells. CD8+ T cells were necessary for the therapeutic benefit because the efficacy was compromised when CD8+ T cells were depleted. Expression of Cxcr3 on CD8+ T cells is necessary and sufficient because CD8+ T cells from Cxcr3+/+ but not Cxcr3-/- mice rescued efficacy in T cell‒deficient mice. Finally, rational scheduling of anti-CTLA-4 "priming" with chemotherapy followed by anti-PD-1 therapy achieved equivalent efficacy with reduced overall drug exposure. These data suggest that this combination approach should be clinically tested to overcome resistance to current therapies in ICC patients.
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Affiliation(s)
- Jiang Chen
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Zohreh Amoozgar
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Immuno-oncology Research and Development, Sanofi, Cambridge, Massachusetts
| | - Xin Liu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuichi Aoki
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Surgery, Tohoku Graduate School of Medicine, Sendai, Japan
| | - Zelong Liu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sarah M. Shin
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Aya Matsui
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Kanazawa University Institute of Medical, Pharmaceutical and Health Sciences Faculty of Medicine, Kanazawa, Japan
| | - Alexei Hernandez
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Zhangya Pu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Xiangya Hospital, Central South University, Changsha, China
| | - Stefan Halvorsen
- Center of Computational and Integrative Biology (CCIB), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Pin-Ji Lei
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Meenal Datta
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Aerospace and Mechanical Engineering, College of Engineering, University of Notre Dame, Notre Dame, Indiana
| | - Lingling Zhu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- West China Hospital of Sichuan University, Chengdu, China
| | - Zhiping Ruan
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Jiaotong University, Xi'an, China
| | - Lei Shi
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Daniel Staiculescu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Koetsu Inoue
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Surgery, Tohoku Graduate School of Medicine, Sendai, Japan
| | - Lance L. Munn
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Dai Fukumura
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Peigen Huang
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Slim Sassi
- Center of Computational and Integrative Biology (CCIB), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Orthopedics, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Nabeel Bardeesy
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Won Jin Ho
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Rakesh K. Jain
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Dan G. Duda
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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Xiao L, Chen J, Zhao S, Zhoudi W, He K, Qian X, Zhang F, Liu Q, Li T, Zhu D, Wu X, Pu Z, Huang J, Xie Z, Xu X. The 90-Day Survival Threshold: A Pivotal Determinant of Long-Term Prognosis in HBV-ACLF Patients - Insights from a Prospective Longitudinal Cohort Study. Adv Sci (Weinh) 2024; 11:e2304381. [PMID: 38380526 DOI: 10.1002/advs.202304381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 02/05/2024] [Indexed: 02/22/2024]
Abstract
This work aims to explore the long-term prognosis of hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF). In this prospective study, eligible inpatients with HBV-ACLF are enrolled and followed up from December 2012 to February 2023, for clinical events, laboratory tests at least every 6 months. Overall, the survival rates at 28 days, 90 days, 1 year, 5 years, and 8 years are 64.7%, 48.8%, 46.1%, 43.8%, and 42.2%, respectively. Among the 8-year mortality and liver transplant cases, ACLF survivors (who survived over 90 days) accounted for 7.8% (9/115). Among 101 patients who survived for more than 90 days, 97.9% of patients achieve virologic response at 1 year. For HBeAg-positive patients, the HBeAg seroconversion are 25.5%, 63.6%, and 76.9% at 1, 5, and 8 years, respectively. Alanine aminotransferase, aspartate aminotransferase, total bilirubin, INR, white blood cell count, and albumin levels gradually improve within the first year. Fibrosis biomarkers APRI, FIB-4 and Chitinase-3-like protein 1 (CHI3L1) levels decreases within the first 5 years. The Cox proportional hazards regression reveal that high total bilirubin (HR = 1.008, p = 0.021) is the independent risk factor for 8-year survival of ALCF survivors. The 90-day period following of HBV-ACLF represented a critical juncture for long-term prognosis, revealing favorable outcomes beyond this timeframe.
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Affiliation(s)
- Lanlan Xiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Jiajia Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Shuai Zhao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Wenxin Zhoudi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Keting He
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Xiaohan Qian
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Fen Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Qiuhong Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Tan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Danhua Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Xiaoxin Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Zhangya Pu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Jianrong Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Zhongyang Xie
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
| | - Xiaowei Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City, 310003, China
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Chen J, Amoozgar Z, Liu X, Aoki S, Liu Z, Shin S, Matsui A, Pu Z, Lei PJ, Datta M, Zhu L, Ruan Z, Shi L, Staiculescu D, Inoue K, Munn LL, Fukumura D, Huang P, Bardeesy N, Ho WJ, Jain RK, Duda DG. Reprogramming Intrahepatic Cholangiocarcinoma Immune Microenvironment by Chemotherapy and CTLA-4 Blockade Enhances Anti-PD1 Therapy. bioRxiv 2023:2023.01.26.525680. [PMID: 36747853 PMCID: PMC9901023 DOI: 10.1101/2023.01.26.525680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Intrahepatic cholangiocarcinoma (ICC) has limited therapeutic options and a dismal prognosis. Anti-PD-L1 immunotherapy combined with gemcitabine/cisplatin chemotherapy has recently shown efficacy in biliary tract cancers, but responses are seen only in a minority of patients. Here, we studied the roles of anti-PD1 and anti-CTLA-4 immune checkpoint blockade (ICB) therapies when combined with gemcitabine/cisplatin and the mechanisms of treatment benefit in orthotopic murine ICC models. We evaluated the effects of the combined treatments on ICC vasculature and immune microenvironment using flow cytometry analysis, immunofluorescence, imaging mass cytometry, RNA-sequencing, qPCR, and in vivo T-cell depletion and CD8+ T-cell transfer using orthotopic ICC models and transgenic mice. Combining gemcitabine/cisplatin with anti-PD1 and anti-CTLA-4 antibodies led to substantial survival benefits and reduction of morbidity in two aggressive ICC models, which were ICB-resistant. Gemcitabine/cisplatin treatment increased the frequency of tumor-infiltrating lymphocytes and normalized the ICC vessels, and when combined with dual CTLA-4/PD1 blockade, increased the number of activated CD8+Cxcr3+IFN-γ+ T-cells. Depletion of CD8+ but not CD4+ T-cells compromised efficacy. Conversely, CD8+ T-cell transfer from Cxcr3-/- versus Cxcr3+/+ mice into Rag1-/- immunodeficient mice restored the anti-tumor effect of gemcitabine/cisplatin/ICB combination therapy. Finally, rational scheduling of the ICBs (anti-CTLA-4 "priming") with chemotherapy and anti-PD1 therapy achieved equivalent efficacy with continuous dosing while reducing overall drug exposure. In summary, gemcitabine/cisplatin chemotherapy normalizes vessel structure, increases activated T-cell infiltration, and enhances anti-PD1/CTLA-4 immunotherapy efficacy in aggressive murine ICC. This combination approach should be clinically tested to overcome resistance to current therapies in ICC patients.
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Affiliation(s)
- Jiang Chen
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Zohreh Amoozgar
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Xin Liu
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School; 185 Cambridge Street, Simches Building, CPZN-4216, Boston, MA 02114, USA
| | - Shuichi Aoki
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Zelong Liu
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Sarah Shin
- Department of Medicine, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, 401 N. Broadway, Baltimore, MD 21231, USA
| | - Aya Matsui
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Zhangya Pu
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Pin-Ji Lei
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Meenal Datta
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Lingling Zhu
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Zhiping Ruan
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Lei Shi
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School; 185 Cambridge Street, Simches Building, CPZN-4216, Boston, MA 02114, USA
| | - Daniel Staiculescu
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Koetsu Inoue
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Lance L. Munn
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Dai Fukumura
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Peigen Huang
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Nabeel Bardeesy
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School; 185 Cambridge Street, Simches Building, CPZN-4216, Boston, MA 02114, USA
| | - Won Jin Ho
- Department of Medicine, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, 401 N. Broadway, Baltimore, MD 21231, USA
| | - Rakesh. K. Jain
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
| | - Dan G. Duda
- Edwin. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School; 100 Blossom Street, Cox-734, MA 02114, USA
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Li Z, Pu Z, Yang Z, Zhu Y, Deng Y, Li N, Peng F. Pan-cancer analysis of trophinin-associated protein with potential implications in clinical significance, prognosis, and tumor microenvironment in human cancers. Front Oncol 2022; 12:971618. [PMID: 36419876 PMCID: PMC9677944 DOI: 10.3389/fonc.2022.971618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/13/2022] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Trophinin-associated protein (TROAP), a cytoplasmic protein, is essential for microtubule cytoskeleton assembly. Mounting evidence demonstrates the vital role of TROAP in regulating the proliferation and migration of cells, but it is unclear how it contributes to cancer progression. METHODS The online portals of GEPIA2, Cancer Cell Line Encyclopedia, UALCAN, Human Protein Atlas, and PrognoScan were used to analyze TROAP expression in various tumors and further evaluate its correlation with prognosis. With Western blot and quantitative real-time PCR analysis, we validated TROAP expression levels in hepatocellular carcinoma (HCC) and colorectal cancer (CRC). Ten pairs of HCC and CRC tissues were selected for immunohistochemistry to determine TROAP expression levels in tumors and adjacent tissues, respectively. TROAP knockdown in CRC and HCC cells to verify its role in malignant phenotypes. The genomic and post-transcriptional alterations of TROAP in tumors were determined using the cBioPortal and SangerBox databases. Also, TISIDB was used to investigate the relationship between TROAP expression and tumor microenvironment(TME) among different cancer types. Moreover, a correlation was found between the expression of TROAP and drug sensitivity using GSCALite and CellMiner databases. RESULTS TROAP expression was significantly upregulated in most cancer types, which is consistent with our validated experimental results in HCC and CRC cells, and immunohistochemistry results. And a poor prognosis was linked to TROAP aberrant expression. Our findings indicated that malignant phenotypes and tumorigenesis induced by TROAP could be due to an activation of the PI3K/Akt/GSK-3β signaling pathway. Furthermore, we found a correlation between TROAP expression and genomic and post-transcriptional alterations in various tumors, including tumor mutation burden, and microsatellite instability. Next, we demonstrated that TROAP expression was associated with the infiltration of immune cells, such as neutrophils and macrophages, and correlated with immunomodulation-related genes in the TME. Additionally, the potential role of TROAP expression in predicting the sensitivity of drugs, including melphalan and chlorambucil, was demonstrated. CONCLUSIONS Collectively, these findings indicated a significant correlation between TROAP expression and malignant phenotype, functional mechanism, survival possibility, TME, therapeutic potential, and prediction of drug sensitivity in various cancers. Hence, TROAP is a promising biomarker and therapeutic target for predicting cancer outcomes.
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Affiliation(s)
- Zhenfen Li
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhangya Pu
- Department of Infectious Diseases and Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Ziyue Yang
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuanyuan Zhu
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ying Deng
- Department of Scientific Research Management, Ningxiang People’s Hospital, Hunan University Traditional Chinese Medicine, Ningxiang, Changsha, Hunan, China
| | - Ning Li
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fang Peng
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Pu Z, Liu J, Liu Z, Peng F, Zhu Y, Wang X, He J, Yi P, Hu X, Fan X, Chen J. STING pathway contributes to the prognosis of hepatocellular carcinoma and identification of prognostic gene signatures correlated to tumor microenvironment. Cancer Cell Int 2022; 22:314. [PMID: 36224658 PMCID: PMC9554977 DOI: 10.1186/s12935-022-02734-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 09/26/2022] [Indexed: 11/10/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most malignant solid tumors worldwide. Recent evidence shows that the stimulator of interferon genes (STING) pathway is essential for anti-tumor immunity via inducing the production of downstream inflammatory cytokines. However, its impact on the prognosis and tumor microenvironment of HCC was still limited known. Methods We obtained gene expression profiles of HCC from GEO, TCGA, and ICGC databases, and immune-related genes (IRGs) from the ImmPort database. Multivariate Cox regression was performed to identify independent prognostic factors. Nomogram was established to predict survival probability for individual patients. Kaplan–Meier curve was used to evaluate the survival difference. Afterward, ESTIMATE, TISCH, and TIMER databases were combined to assess the immune cell infiltration. Furthermore, the qPCR, western blotting, and immunohistochemistry were done to evaluate gene expression, and in vitro cell models were built to determine cell migratory ability. Results We found that gene markers of NLRC3, STING1, TBK1, TRIM21, and XRCC6 within STING pathway were independent prognostic factors in HCC patients. Underlying the finding, a predictive nomogram was constructed in TCGA-training cohort and further validated in TCGA-all and ICGC datasets, showing credible performance. Experimentally, up-regulated TBK1 promotes the ability of HCC cell migration. Next, the survival-related immune-related co-expressed gene signatures (IRCGS) (VAV1, RHOA, and ZC3HAV1) were determined in HCC cohorts and their expression was verified in human HCC cells and clinical samples. Furthermore, survival-related IRCGS was associated with the infiltration of various immune cell subtypes in HCC, the transcriptional expression of prominent immune checkpoints, and immunotherapeutic response. Conclusion Collectively, we constructed a novel prognostic nomogram model for predicting the survival probability of individual HCC patients. Moreover, an immune-related prognostic gene signature was determined. Both might function as potential therapeutic targets for HCC treatment in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-022-02734-4.
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Affiliation(s)
- Zhangya Pu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China.,Department of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, Zhejiang Province, China
| | - Jinghua Liu
- Department of Hepatobiliary Surgery, Linyi People's Hospital, Linyi, Shandong, China
| | - Zelong Liu
- Division of Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Fang Peng
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, 41800, Hunan Province, China
| | - Yuanyuan Zhu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, 41800, Hunan Province, China
| | - Xiaofang Wang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China
| | - Jiayan He
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310000, Zhejiang Province, China
| | - Panpan Yi
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China
| | - Xingwang Hu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China.
| | - Xuegong Fan
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, No. 87, Xiangya Rd, Kaifu District, Changsha, 410008, Hunan Province, China.
| | - Jiang Chen
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310000, Zhejiang Province, China.
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Pu Z, Ren Z, Xu Q, Wang X, Chen J, Chen J. Editorial: The role of tumor microenvironment in primary liver cancer therapeutic resistance. Front Oncol 2022; 12:938557. [PMID: 35965496 PMCID: PMC9365232 DOI: 10.3389/fonc.2022.938557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/04/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Zhangya Pu
- Department of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhigang Ren
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiuran Xu
- Laboratory of Molecular Diagnosis, Zhejiang Provincial People’s Hospital and Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Xiaochen Wang
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jian Chen
- Department of Research and Development, BioAtla, Inc., San Diego, CA, United States
| | - Jiang Chen
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- *Correspondence: Jiang Chen,
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7
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Pu Z, Chen J, Peng F, Ruan Z, Zhu Y, Wang X, Huang Y, Yi P, Chen Y, Quan J, Huang Z, Liu Z, Hu X. Establishment and validation of prognostic nomograms to predict the overall and cancer-specific survival in patients with hepatic malignant vascular tumors. Am J Transl Res 2022; 14:798-818. [PMID: 35273686 PMCID: PMC8902562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To characterize the clinicopathologic features and to investigate the prognostic nomograms for overall survival (OS) and cancer-specific survival (CSS) in patients with Hepatic malignant vascular tumors (HMVT). METHOD Patients diagnosed with HMVT between 1973 and 2015 were screened from the Surveillance, Epidemiology, and End Results (SEER) database. The Kaplan-Meier (KM) was used for survival analysis. The univariate and multivariate Cox analyses were performed to identify independent predictors. Furthermore, the prognostic nomograms were established and evaluated. RESULTS A total of 510 HMVT patients were collected, and randomly divided into HMVT-training (N=308) and validation cohort (N=202) groups. The 3- and 5-year OS for overall HMVT were 21.3% and 19.8%, and the corresponding CSS was 29.8% and 27.7% respectively. Age at diagnosis, grade, tumor size, and histological type were identified as prognostic factors for OS and CSS in patients with HMVT. However, sex was just for predicting CSS, and T stage was only an indicator of OS. These factors were further utilized to construct the nomograms for OS and CSS in the HMVT-training cohort showing credible performance with the C-index of 0.763 and 0.762, respectively. Moreover, the AUC value for 1-, 3-, 5-year OS was 0.873, 0.905 and 0.898, and the corresponding value for CSS was 0.808, 0.794 and 0.788 respectively. Additionally, the calibration curves demonstrated a favorable agreement between the predicted and actual 1-, 3- and 5-year survival rates both in the training and validated cohorts. CONCLUSION This was the largest population-based study to describe the clinicopathologic characteristics in patients with HMVT. Moreover, we established and validated prognostic nomograms that indicated an accurate prediction for 1-, 3- and 5-year of OS and CSS.
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Affiliation(s)
- Zhangya Pu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical SchoolBoston, MA 02114, USA
| | - Jiang Chen
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical SchoolBoston, MA 02114, USA
| | - Fang Peng
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Zhiping Ruan
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical SchoolBoston, MA 02114, USA
| | - Yuanyuan Zhu
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Xiaofang Wang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Yan Huang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Panpan Yi
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Yayu Chen
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Jun Quan
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Zebing Huang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
| | - Zelong Liu
- Division of Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong Province, China
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical SchoolBoston, MA 02114, USA
| | - Xingwang Hu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan Province, China
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8
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Xiao Y, Chen J, Zhou H, Zeng X, Ruan Z, Pu Z, Jiang X, Matsui A, Zhu L, Amoozgar Z, Chen DS, Han X, Duda DG, Shi J. Combining p53 mRNA nanotherapy with immune checkpoint blockade reprograms the immune microenvironment for effective cancer therapy. Nat Commun 2022; 13:758. [PMID: 35140208 PMCID: PMC8828745 DOI: 10.1038/s41467-022-28279-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 01/13/2022] [Indexed: 12/14/2022] Open
Abstract
Immunotherapy with immune checkpoint blockade (ICB) has shown limited benefits in hepatocellular carcinoma (HCC) and other cancers, mediated in part by the immunosuppressive tumor microenvironment (TME). As p53 loss of function may play a role in immunosuppression, we herein examine the effects of restoring p53 expression on the immune TME and ICB efficacy. We develop and optimize a CXCR4-targeted mRNA nanoparticle platform to effectively induce p53 expression in HCC models. Using p53-null orthotopic and ectopic models of murine HCC, we find that combining CXCR4-targeted p53 mRNA nanoparticles with anti-PD-1 therapy effectively induces global reprogramming of cellular and molecular components of the immune TME. This effect results in improved anti-tumor effects compared to anti-PD-1 therapy or therapeutic p53 expression alone. Thus, our findings demonstrate the reversal of immunosuppression in HCC by a p53 mRNA nanomedicine when combined with ICB and support the implementation of this strategy for cancer treatment. The p53 tumor suppressor gene is frequently mutated in liver cancer. Here the authors show that restoration of p53 expression with a mRNA nanoparticle platform elicits anti-tumor immune responses and promotes response to immune checkpoint blockade in preclinical models of p53-null hepatocellular carcinoma.
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Affiliation(s)
- Yuling Xiao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jiang Chen
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Hui Zhou
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, 430071, Wuhan, China
| | - Xiaodong Zeng
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, 430071, Wuhan, China
| | - Zhiping Ruan
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhangya Pu
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Xingya Jiang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Aya Matsui
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lingling Zhu
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zohreh Amoozgar
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Dean Shuailin Chen
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiangfei Han
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Dan G Duda
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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9
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Zhu Y, Pu Z, Li Z, Lin Y, Li N, Peng F. Comprehensive Analysis of the Expression and Prognosis Value of Chromobox Family Members in Clear Cell Renal Cell Carcinoma. Front Oncol 2021; 11:700528. [PMID: 34395271 PMCID: PMC8357267 DOI: 10.3389/fonc.2021.700528] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/13/2021] [Indexed: 12/13/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) accounts for 80% of all renal cancers and has a poor prognosis. Chromobox (CBX) family protein expression has been reported in a variety of human malignancies, but the roles of CBXs in ccRCC remain unclear. In this study, by using ONCOMINE, UALCAN, GEPIA, Kaplan-Meier Plotter, cBioPortal, and TIMER, we found the transcriptional levels of CBX3 and CBX4 in ccRCC tissues were significantly higher than those in normal kidney tissues, whereas the transcriptional levels of CBX1, CBX5, CBX6, and CBX7 were significantly reduced in ccRCC tissues. The promoters of CBX2, CBX3, CBX4, CBX5, CBX6, CBX7, and CBX8 were hypermethylated, whereas the CBX1 promoter was hypomethylated in ccRCC. The expression of CBX1, CBX3, CBX4, CBX5, CBX6, and CBX7 was significantly associated with clinicopathological parameters in ccRCC patients. ccRCC patients with high expression levels of CBX3, CBX4, and CBX8 and low expression levels of CBX1, CBX5, CBX6, and CBX7 showed a strong association with poor overall survival. Genetic alterations in CBXs were correlated with poor overall survival and disease-free survival in patients with ccRCC. Moreover, we found significant associations between the expression of CBXs and infiltration of immune cells (B cells, CD8+ T cells, CD4+ T cells, macrophages, neutrophils, and dendritic cells). Our results provide novel insights into the development of CBX-based biomarkers and therapeutic targets for ccRCC.
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Affiliation(s)
- Yuanyuan Zhu
- Department of Blood Transfusion, Xiangya Hospital, Central South University, Changsha, China.,National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhangya Pu
- Department of Infectious Diseases and Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Zhenfen Li
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
| | - Ying Lin
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, Changsha, China
| | - Fang Peng
- Department of Blood Transfusion, Xiangya Hospital, Central South University, Changsha, China.,National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
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10
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Wang Y, Zhu Y, Pu Z, Li Z, Deng Y, Li N, Peng F. Soluble resistance-related calcium-binding protein participates in multiple diseases via protein-protein interactions. Biochimie 2021; 189:76-86. [PMID: 34153376 DOI: 10.1016/j.biochi.2021.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 05/21/2021] [Accepted: 06/14/2021] [Indexed: 11/17/2022]
Abstract
Soluble resistance-related calcium-binding protein (sorcin), a 22 kDa penta-EF-hand protein, has been intensively studied in cancers and multidrug resistance over a prolonged period. Sorcin is widely distributed in tissues and participates in the regulation of Ca2+ homeostasis and Ca2+-dependent signaling. Protein-protein interactions (PPIs) are essential for regulating protein functions in almost all biological processes. Sorcin interaction partners tend to vary in type, including Ca2+ receptors, Ca2+ transporters, endoplasmic reticulum stress markers, transcriptional regulatory elements, immunomodulation-related factors, and viral proteins. Recent studies have shown that sorcin is involved in a broad range of pathological conditions, such as cardiomyopathy, type 2 diabetes mellitus, neurodegenerative diseases, liver diseases, and viral infections. As a multifunctional cellular protein, in these diseases, sorcin has a role by interacting with or regulating the expression of other proteins, such as sarcoplasmic reticulum/endoplasmic reticulum Ca2+ ATPase, ryanodine receptors, presenilin 2, L-type Ca2+ channels, carbohydrate-responsive element-binding protein, tau, α-synuclein, signal transducer and activator of transcription 3, HCV nonstructural 5A protein, and viral capsid protein 1. This review summarizes the roles that sorcin plays in various diseases, mainly via different PPIs, and focuses principally on non-neoplastic diseases to help acquire a more comprehensive understanding of sorcin's multifunctional characteristics.
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Affiliation(s)
- Yinmiao Wang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China; NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Yuanyuan Zhu
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China; NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Zhangya Pu
- Department of Infectious Diseases and Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Zhenfen Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China; NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Ying Deng
- People's Hospital of Ningxiang, Changsha, Hunan Province 410600, China
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Fang Peng
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China; NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China.
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11
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Pu Z, Zhu Y, Wang X, Zhong Y, Peng F, Zhang Y. Identification of Prognostic Biomarkers and Correlation With Immune Infiltrates in Hepatocellular Carcinoma Based on a Competing Endogenous RNA Network. Front Genet 2021; 12:591623. [PMID: 34093635 PMCID: PMC8173128 DOI: 10.3389/fgene.2021.591623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 04/22/2021] [Indexed: 12/15/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. Recently, competing endogenous RNAs (ceRNA) have revealed a significant role in the progression of HCC. Herein, we aimed to construct a ceRNA network to identify potential biomarkers and illustrate its correlation with immune infiltration in HCC. Methods RNA sequencing data and clinical traits of HCC patients were downloaded from TCGA. The limma R package was used to identify differentially expressed (DE) RNAs. The predicted prognostic model was established using univariate and multivariate Cox regression. A K-M curve, TISIDB and GEPIA website were utilized for survival analysis. Functional annotation was determined using Enrichr and Reactome. Protein-to-protein network analysis was implemented using SRTNG and Cytoscape. Hub gene expression was validated by quantitative polymerase chain reaction, Oncomine and the Hunan Protein Atlas database. Immune infiltration was analyzed by TIMMER, and Drugbank was exploited to identify bioactive compounds. Results The predicted model that was established revealed significant efficacy with 3- and 5-years of the area under ROC at 0.804 and 0.744, respectively. Eleven DEmiRNAs were screened out by a K-M survival analysis. Then, we constructed a ceRNA network, including 56 DElncRNAs, 6 DEmiRNAs, and 28 DEmRNAs. The 28 DEmRNAs were enriched in cancer-related pathways, for example, the TNF signaling pathway. Moreover, six hub genes, CEP55, DEPDC1, KIF23, CLSPN, MYBL2, and RACGAP1, were all overexpressed in HCC tissues and independently correlated with survival rate. Furthermore, expression of hub genes was related to immune cell infiltration in HCC, including B cells, CD8+ T cells, CD4+ T cells, monocytes, macrophages, neutrophils, and dendritic cells. Conclusion The findings from this study demonstrate that CEP55, DEPDC1, KIF23, CLSPN, MYBL2, and RACGAP1 are closely associated with prognosis and immune infiltration, representing potential therapeutic targets or prognostic biomarkers in HCC.
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Affiliation(s)
- Zhangya Pu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Yuanyuan Zhu
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaofang Wang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Yun Zhong
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Fang Peng
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
| | - Yiya Zhang
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Department of Dermatology, Xiangya Hospital, Changsha, China
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12
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Abstract
FAM3C is a member of the FAM3 family. Recently, overexpression of FAM3C has been reported in numerous types of cancer, including breast and colon cancer. Increasing evidence suggests that elevated FAM3C and its altered subcellular localization are closely associated with tumor formation, invasion, metastasis and poor survival. Moreover, FAM3C has been found to be the regulator of various proteins that associate with cancer, including Ras, STAT3, TGF-β and LIFR. This review summarizes the current knowledge regarding FAM3C, including its structure, expression patterns, regulation, physiological roles and regulatory functions in various malignancies. These findings highlight the importance of FAM3C in cancer development and provide evidence that FAM3C is a novel biomarker and potential therapeutic target for various cancers.
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Affiliation(s)
- Yuanyuan Zhu
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Zhangya Pu
- Department of Infectious Diseases & Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Guoqiang Wang
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Yubin Li
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Yinmiao Wang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Fang Peng
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.,NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
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13
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Gao J, Zhang S, Zhou K, Zhao X, Liu J, Pu Z. Epidemiological and clinical characteristics of patients with COVID-19 from a designated hospital in Hangzhou City: a retrospective observational study. Hong Kong Med J 2020; 28:54-63. [PMID: 33177240 DOI: 10.12809/hkmj208693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION The outbreak of coronavirus disease 2019 (COVID-19) has exerted a heavy burden on public health worldwide. We aimed to investigate the epidemiological and clinical characteristics of patients with COVID-19 in a designated hospital in Hangzhou, China. METHODS This was a retrospective study that included laboratory-confirmed cases of COVID-19 in XiXi Hospital of Hangzhou from 15 January 2020 to 30 March 2020. We reviewed and analysed the epidemiological, demographic, clinical, radiological, and laboratory features involving these cases. Age-tratification analysis was also implemented. RESULTS We analysed 96 confirmed cases. The patients had a mean age of 43 years, with six patients younger than 18 years and 14 patients older than 60 years. No significant gender difference was discovered. Co-morbidities were commonly observed in patients aged over 40 years. Twenty eight of the patients had travelled from Wuhan City, and 51 patients were infected through close contact. Familial clusters accounted for 48 of the cases. The mean incubation time was 7 days, and the symptoms were mainly fever, cough, fatigue, and sore throat. Lymphocytopenia was observed predominantly in patients aged over 60 years. Fifty five patients presented with bilateral pulmonary lesions. The radiological changes were typically distributed in the subpleural area, and pleural effusion rarely occurred. All patients were discharged successfully. CONCLUSION During the early stage of the COVID-19 outbreak, half of the patients from a designated hospital in Hangzhou City were discovered as familial clusters. Therefore, strict prevention and control measures during self-isolation should be implemented. Patients aged over 60 years who had underlying co-morbidities were prone to lymphocytopenia and severe infection.
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Affiliation(s)
- J Gao
- Critical Care Department, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Zhang
- Critical Care Department, XiXi Hospital of Hangzhou, Hangzhou, China
| | - K Zhou
- Critical Care Department, XiXi Hospital of Hangzhou, Hangzhou, China
| | - X Zhao
- Critical Care Department, XiXi Hospital of Hangzhou, Hangzhou, China
| | - J Liu
- Department of General Internal Medicine, XiXi Hospital of Hangzhou, Hangzhou, China
| | - Z Pu
- Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou, China
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14
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Wen Z, Shang Y, Xu G, Pu Z, Lin Z, Bai B, Chen Z, Zheng J, Deng Q, Yu Z. Mechanism of Eravacycline Resistance in Clinical Enterococcus faecalis Isolates From China. Front Microbiol 2020; 11:916. [PMID: 32523563 PMCID: PMC7261854 DOI: 10.3389/fmicb.2020.00916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 04/17/2020] [Indexed: 12/23/2022] Open
Abstract
Opportunistic infections caused by multidrug-resistant Enterococcus faecalis strains are a significant clinical challenge. Eravacycline (Erava) is a synthetic fluorocycline structurally similar to tigecycline (Tige) that exhibits robust antimicrobial activity against Gram-positive bacteria. This study investigated the in vitro antimicrobial activity and heteroresistance risk of Eravacycline (Erava) in clinical E. faecalis isolates from China along with the mechanism of Erava resistance. A total of 276 non-duplicate E. faecalis isolates were retrospectively collected from a tertiary care hospital in China. Heteroresistance to Erava and the influence of tetracycline (Tet) resistance genes on Erava susceptibility were examined. To clarify the molecular basis for Erava resistance, E. faecalis variants exhibiting Erava-induced resistance were selected under Erava pressure. The relative transcript levels of six candidate genes linked to Erava susceptibility were determined by quantitative reverse-transcription PCR, and their role in Erava resistance and heteroresistance was evaluated by in vitro overexpression experiments. We found that Erava minimum inhibitory concentrations (MICs) against clinical E. faecalis isolates ranged from ≤0.015 to 0.25 mg/l even in strains harboring Tet resistance genes. The detection frequency of Erava heteroresistance in isolates with MICs ≤ 0.06, 0.125, and 0.25 mg/l were 0.43% (1/231), 7.5% (3/40), and 0 (0/5), respectively. No mutations were detected in the 30S ribosomal subunit gene in Erava heteroresistance-derived clones, although mutations in this subunit conferred cross resistance to Tige in Erava-induced resistant E. faecalis. Overexpressing RS00630 (encoding a bone morphogenetic protein family ATP-binding cassette transporter substrate-binding protein) in E. faecalis increased the frequency of Erava and Tige heteroresistance, whereas RS12140, RS06145, and RS06880 overexpression conferred heteroresistance to Tige only. These results indicate that Erava has potent in vitro antimicrobial activity against clinical E. faecalis isolates from China and that Erava heteroresistance can be induced by RS00630 overexpression.
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Affiliation(s)
- Zewen Wen
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Yongpeng Shang
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Guangjian Xu
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Zhangya Pu
- Key Laboratory of Viral Hepatitis of Hunan Province, Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Zhiwei Lin
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Bing Bai
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Zhong Chen
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Jinxin Zheng
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Qiwen Deng
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Zhijian Yu
- Shenzhen Key Laboratory for Endogenous Infections, Department of Infectious Diseases, Shenzhen Nanshan People's Hospital, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
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15
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Bai B, Lin Z, Pu Z, Xu G, Zhang F, Chen Z, Sun X, Zheng J, Li P, Deng Q, Yu Z. In vitro Activity and Heteroresistance of Omadacycline Against Clinical Staphylococcus aureus Isolates From China Reveal the Impact of Omadacycline Susceptibility by Branched-Chain Amino Acid Transport System II Carrier Protein, Na/Pi Cotransporter Family Protein, and Fibronectin-Binding Protein. Front Microbiol 2019; 10:2546. [PMID: 31787948 PMCID: PMC6856048 DOI: 10.3389/fmicb.2019.02546] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 10/22/2019] [Indexed: 12/11/2022] Open
Abstract
Omadacycline (Omad), a new tetracycline (Tet)-class broad-spectrum aminomethylcycline, has been reported to exhibit excellent potency against Gram-positive bacteria, including Staphylococcus aureus and Enterococci. The aim of this study was to evaluate the in vitro activity and heteroresistance characteristics of Omad in clinical S. aureus isolates from China and investigate Omad resistance mechanisms. A sample of 263 non-duplicate clinical S. aureus isolates [127 methicillin-resistant (MRSA) and 136 methicillin-sensitive (MSSA)] were collected retrospectively. Our data indicated that Omad exhibited excellent in vitro activity against both MRSA and MSSA. Omad heteroresistance frequencies were 3.17% (4/126) in MRSA and 12.78% (17/133) in MSSA. No mutations in Tet target sites, (five 16SrRNA copies and 30S ribosomal protein S10) were present in heteroresistance-derived clones, whereas Tet target site mutations contribute to induced Omad resistance in S. aureus in vitro. RNA sequencing (RNA-Seq) revealed that overexpression of branched-chain amino acid transport system II carrier protein and Na/Pi cotransporter family protein contributes to Omad heteroresistance emergence. Whole-genome sequencing demonstrated that the genetic mutation of fibronectin-binding protein (FnBP) could increase the Omad MIC. In conclusion, Omad heteroresistance risk should be considered in clinical isolates with MICs ≥ 0.5 mg/L and Omad susceptibility in S. aureus may be affected by efflux pump proteins (i.e., a branched-chain amino acid transport system II carrier protein and an Na/Pi cotransporter family protein), and FnBP.
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Affiliation(s)
- Bing Bai
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Zhiwei Lin
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Zhangya Pu
- Key Laboratory of Viral Hepatitis of Hunan Province, Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Guangjian Xu
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Fan Zhang
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Zhong Chen
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Xiang Sun
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Jinxin Zheng
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Peiyu Li
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Qiwen Deng
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
| | - Zhijian Yu
- Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infections, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.,Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen Nanshan People's Hospital, Guangdong Medical University, Shenzhen, China
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16
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Bai B, Hu K, Zeng J, Yao W, Li D, Pu Z, Chen Z, Cheng H, Zheng J, Pan W, Lin Z, Xie L, Deng Q, Yu Z. Linezolid Consumption Facilitates the Development of Linezolid Resistance in Enterococcus faecalis in a Tertiary-Care Hospital: A 5-Year Surveillance Study. Microb Drug Resist 2019; 25:791-798. [PMID: 30762463 DOI: 10.1089/mdr.2018.0005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Although case reports and clinical studies of linezolid (LZD)-resistant Enterococcus faecalis (LREF) have gradually increased in recent years, the relationship between LZD resistance and antibiotic consumption in hospital settings still remains unclear. In this study, we aimed to investigate the dynamic relationship between the yearly detection frequency of LREF clinical isolates and yearly consumption of LZD and vancomycin (VCM) over a 5-year period in a Chinese hospital setting. Antibiotic consumption data (LZD and VCM) from 2011 to 2015 were obtained from a computerized database and recalculated as the defined daily doses (DDDs) per 100 bed-days (DBD). All 268 E. faecalis clinical isolates were retrospectively collected from 2011 to 2015 in this hospital. LZD resistance mechanism and multilocus sequence typing of E. faecalis were determined by PCR. The annual detection frequency of LREF clinical isolates tested in this hospital was shown with 1.89% (1/53), 2% (1/50), 2.04% (1/49), 0% (0/45), and 7.04% (5/71), respectively, and the detection frequency of LZD-nonsusceptible E. faecalis (LNSEF; n = 59, including LZD-resistant and intermediate isolates) was determined with 26.42% (14/53), 34% (17/50), 16.33% (8/49), 22.22% (10/45), and 14.08% (10/71), respectively. Spearman correlation analysis revealed that LZD DBD significantly correlated positively with the detection frequency of LREF (r = 0.886, p = 0.019). Moreover, VCM DBD significantly correlated positively with the frequency of LNSEF (r = 0.943, p = 0.005). Furthermore, the detection frequency of optrA-positive E. faecalis also correlated positively with high LZD consumption load in this hospital setting. Conclusively, high LZD consumption load facilitates the development of LZD resistance and promotes the selection of optrA-positive E. faecalis clinical isolates under antibiotic pressure in a hospital setting.
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Affiliation(s)
- Bing Bai
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Kaitao Hu
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Jun Zeng
- 3 Department of Digestive Diseases, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiming Yao
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Duoyun Li
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Zhangya Pu
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Zhong Chen
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Hang Cheng
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Jinxin Zheng
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China.,4 Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Science and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Weiguang Pan
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Zhiwei Lin
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China.,4 Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Science and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Lixia Xie
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China.,5 Department of Pharmacy Practice and Translational Research, University of Houston, Houston, Texas
| | - Qiwen Deng
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China
| | - Zhijian Yu
- 1 Department of Infectious Diseases and Shenzhen Key Lab of Endogenous Infection, Shenzhen Nanshan Hospital of Shenzhen University, Nanshan District, Shenzhen, China.,2 Quality Control Center of Hospital Infection Management of Shenzhen, Shenzhen, China.,5 Department of Pharmacy Practice and Translational Research, University of Houston, Houston, Texas
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17
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Xu Q, Liu X, Jiang J, He Y, Zhu Q, Gao F, Du F, He W, Cheng J, Kong M, Pu Z, Zhou Q, Gooley R, Wang J. Transcatheter aortic valve replacement in atypical valve anatomy using the Lotus valve : A Chinese single-center experience. Herz 2019; 46:63-70. [PMID: 30694372 PMCID: PMC7862532 DOI: 10.1007/s00059-018-4778-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/28/2018] [Accepted: 12/09/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND In the West, the safety and efficacy of the Lotus valve have been demonstrated; however, data in the Chinese population are still lacking. Few studies have compared the clinical outcomes of transcatheter aortic valve replacement (TAVR) with the Lotus valve in patients with bicuspid or tricuspid aortic valve stenosis. Our aim was to assess TAVR outcomes with the Lotus aortic valve in a Chinese patient cohort. METHODS In total, 23 symptomatic, high-surgical risk patients with severe aortic valve stenosis were enrolled. Among them, nine patients (39%) had bicuspid aortic valves, and three patients had a large annulus dimension. The Lotus valve was successfully implanted in all patients. To facilitate accurate positioning, partial re-sheathing was attempted in ten patients (43.5%), while one patient had a full retrieval. One-year clinical follow-up was completed in all patients. RESULTS There were no deaths, strokes, or major adverse cardiac and cerebrovascular events in 22 of the 23 patients at 30 days; the all-cause mortality rate at 1 year was 4.4% (1 of 23 patients). The mean aortic valve gradient decreased from 51.5 ± 8.8 mm Hg at baseline to 13.4 ± 4.9 mm Hg (p < 0.001) and the valve area increased from 0.6 ± 0.2 cm2 to 1.5 ± 0.4 cm2 (p < 0.001) at 30 days. Paravalvular leakage was absent or mild (22%), and no patient had severe paravalvular leakage. Six patients (26.1%) required a postprocedural pacemaker. There was no difference regarding the procedural and the 1‑year outcomes between patients with bicuspid and tricuspid aortic valve stenosis. CONCLUSION Our single-center experience demonstrated that the Lotus valve is feasible and effective for Chinese patients with aortic valve stenosis, including atypical cases with bicuspid aortic valves or large aortic annulus size.
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Affiliation(s)
- Q Xu
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - X Liu
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - J Jiang
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Y He
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Q Zhu
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - F Gao
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - F Du
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - W He
- Department of Anesthesia, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - J Cheng
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - M Kong
- Department of Cardiac Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Z Pu
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Q Zhou
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - R Gooley
- Monash Cardiovascular Research Centre, Monash University, Victoria, Clayton, Australia
| | - J Wang
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China.
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18
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Affiliation(s)
- Z. Pu
- Institute of Acoustics, Chinese Academy of Sciences, Beijing, P.R. China
- University of Chinese, Academy of Sciences, Beijing, P.R. China
| | - W. Wang
- Institute of Acoustics, Chinese Academy of Sciences, Beijing, P.R. China
| | - Y. Li
- Institute of Acoustics, Chinese Academy of Sciences, Beijing, P.R. China
| | - H. Huang
- Institute of Acoustics, Chinese Academy of Sciences, Beijing, P.R. China
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19
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Wen X, Su H, Wang Y, Pu Z, Gao J, Ji Z, Yuan X, Li X, Zhang W, Zhang L, Long Y, Yan Y, Shao Z. Prevalence and natural course of occult hepatitis B virus infection in residents of 2 communities of Wuwei City, Gansu Province, China. J Viral Hepat 2018; 25:281-288. [PMID: 29032635 DOI: 10.1111/jvh.12805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 08/02/2017] [Indexed: 12/14/2022]
Abstract
Occult hepatitis B infection (OBI) is characterized by serum hepatitis B surface antigen (HBsAg) negative and hepatitis B virus (HBV) DNA positive (HBsAg-/HBV DNA+). Occult hepatitis B infection in community-based populations has been scarcely investigated, and OBI outcomes remain unclear, especially in Wuwei, a region located in Northwest China. This region is one of the areas in China that has the highest prevalence of chronic HBV infection. A prospective study was performed in the general population of 2 towns of Wuwei from June 2011 to May 2014. A questionnaire was used to collect demographic and medical data, and serum samples were collected from the participants and stored until analysis. DNA was detected using quantitative PCR (qPCR) or nested PCR, the HBV DNA from HBV DNA-positive or possible positive (below the detection limit) subjects was extracted and amplified by nested PCR, and the PCR products were sequenced. Sequence analysis was performed using the Mega 6.0 program and CLC sequence viewer software. Hepatitis B virus DNA was detected in 90 of 3,080 HBsAg-negative subjects, and the prevalence of OBI in the study population was 2.92% (90/3,080, 95% CI: 2.33%-3.51%). Hepatitis B virus genomes in 51 of 80 objects (63.75%) contained mutations in the "a" determinant of HBsAg. After 2 years follow-up, 42 of 90 HBV DNA of OBI subjects remained positive, and the natural clearance rate of OBI subjects was 53.3%. Occult hepatitis B infection prevalence in this cohort was much lower than chronic HBV infection in the same region. HBV DNA was cleared in most OBI subjects during the 2 year period. Our data suggest that some OBI may represent a late stage of resolving the HBV infection process.
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Affiliation(s)
- X Wen
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - H Su
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Y Wang
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Z Pu
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - J Gao
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Z Ji
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - X Yuan
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - X Li
- Center of disease control Of Wuwei, Gansu province, China
| | - W Zhang
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - L Zhang
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Y Long
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Y Yan
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Z Shao
- Department of Epidemiology, School of Public Health, Fourth Military Medical University, Xi'an, China
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20
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Su H, Shao Z, Pu Z, Wang Y, Zhang L, Zhang W, Wang B, Wang A, Ji Z, Yan Y, Zhang Y. Overt and occult hepatitis B virus infection among community children in Northwest China. J Viral Hepat 2017; 24:797-803. [PMID: 28342241 DOI: 10.1111/jvh.12709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/17/2017] [Indexed: 12/26/2022]
Abstract
Although a universal newborn hepatitis B (HB) immunization programme has been implemented in China, hepatitis B virus (HBV) breakthrough infection, including HB surface antigen (HBsAg)-positive infection and occult HBV infection (OBI), still occurs during infancy or childhood. Obtaining the actual prevalence of HBV infection in general children is important for preventing and controlling the spread of HB. Accordingly, we investigated the prevalence of overt infection and OBI in community children and compared the serological and virological characteristics of OBI and HBsAg carrier children to clarify the mechanisms related to OBI. In total, 6 706 community children <12 years of age were included from a population-based HBV seroepidemiological investigation in Northwest China. The HBsAg carrier rate in community children was 1.60% (107/6706), and the anti-HBs positive rate was 57.35% (3846/6706). Additionally, 1192 HBsAg-negative children were examined for OBI using nested PCR. The prevalence of OBI in local children was 1.26% (15/1192), and the predominant OBI genotypes were C and D. The 15 OBI children and 29 HBsAg-positive children from the same population did not have a statistical significant difference in age, gender, alanine aminotransferase (ALT), proportion of anti-HBs or anti-HBc, viral genotypes or mutations. Children with chronic overt infection had higher viral loads than OBI children (P=.004). These results suggested that HBV overt and occult infection of children was more serious in underdeveloped north-west regions. HBV neonatal immunization and catch-up programmes should be strengthened and supplemented. None of specific viral mutations or genotypes related to OBI were found. OBI may be a specific stage of HBV infection.
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Affiliation(s)
- H Su
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Z Shao
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Z Pu
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Y Wang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - L Zhang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - W Zhang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - B Wang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - A Wang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Z Ji
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Y Yan
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, China
| | - Y Zhang
- Department of Health Statistics, School of Public Health, The Fourth Military Medical University, Xi'an, China
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21
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Pu Z, Li D, Wang A, Su H, Shao Z, Zhang J, Ji Z, Gao J, Choi BCK, Yan Y. Epidemiological characteristics of the carriers with coexistence of HBsAg and anti-HBs based on a community cohort study. J Viral Hepat 2016; 23:286-93. [PMID: 26663578 DOI: 10.1111/jvh.12492] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/07/2015] [Indexed: 02/05/2023]
Abstract
The coexistence of HBsAg and anti-HBs is an atypical serological pattern in HBV infection. There is no epidemiological characteristics of this serological pattern in the community and there is controversy over the molecular mechanisms underlying this pattern. We investigated the epidemiological characteristics of the carriers with HBsAg and anti-HBs in a longitudinal community cohort study. The prevalence of this atypical serological pattern was 2.93% (122/4169) in HBsAg-positive populations. The prevalence progressively increased with age from 40 to 70 years old. The rate of HBeAg positive and detectable HBV DNA were both significantly higher in carriers with this pattern than in carriers who were HBsAg positive but anti-HBs negative (26/122 verse 598/4047, P = 0.046; 86/122 verse 275/529,P < 0.001). After 1 year of follow-up, 85.19% of the carriers still had coexistence HBsAg and anti-HBs, 14.81% of the carriers lost their anti-HBs. Viral sequencing showed that carriers with coexistence of HBsAg and anti-HBs had higher numbers of residue changes within the S gene than carriers who were HBsAg positive but anti-HBs negative (2.42 verse 1.33 changes per 100 residues, P < 0.05). Hence, the coexistence of HBsAg and anti-HBs is a unique serological pattern which may be associated with an increased risk of adverse clinical outcome and may be related to HBsAg immune variants which have genotypic heterogeneity.
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Affiliation(s)
- Z Pu
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - D Li
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - A Wang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - H Su
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Z Shao
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J Zhang
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Z Ji
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J Gao
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - B C K Choi
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Shantou University Medical College, Shantou, China
| | - Y Yan
- Department of Epidemiology, School of Public Health, The Fourth Military Medical University, Xi'an, Shaanxi, China
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22
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Malevich PN, Kartashov D, Pu Z, Ališauskas S, Pugžlys A, Baltuška A, Giniūnas L, Danielius A, Zheltiko A, Marangoni M, Cerullo G. Ultrafast-Laser-Induced Backward Stimulated Raman Scattering for Tracing Atmospheric Gases. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134112009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Malevich PN, Kartashov D, Pu Z, Ališauskas S, Pugžlys A, Baltuška A, Giniūnas L, Danielius R, Lanin AA, Zheltikov AM, Marangoni M, Cerullo G. Ultrafast-laser-induced backward stimulated Raman scattering for tracing atmospheric gases. Opt Express 2012; 20:18784-18794. [PMID: 23038518 DOI: 10.1364/oe.20.018784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
By combining tunable broadband pulse generation with the technique of nonlinear spectral compression we demonstrate a prototype scheme for highly selective detection of air molecules by backward stimulated Raman scattering. The experimental results allow to extrapolate the laser parameters required for standoff sensing based on the recently demonstrated backward atmospheric lasing.
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Affiliation(s)
- P N Malevich
- Photonics Institute Vienna University of Technology, Vienna, Austria
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24
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Dunlop MW, Zhang QH, Bogdanova YV, Lockwood M, Pu Z, Hasegawa H, Wang J, Taylor MGGT, Berchem J, Lavraud B, Eastwood J, Volwerk M, Shen C, Shi JK, Constantinescu D, Frey H, Fazakerley AN, Sibeck D, Escoubet P, Wild JA, Liu ZX. Extended magnetic reconnection across the dayside magnetopause. Phys Rev Lett 2011; 107:025004. [PMID: 21797615 DOI: 10.1103/physrevlett.107.025004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Indexed: 05/31/2023]
Abstract
The extent of where magnetic reconnection (MR), the dominant process responsible for energy and plasma transport into the magnetosphere, operates across Earth's dayside magnetopause has previously been only indirectly shown by observations. We report the first direct evidence of X-line structure resulting from the operation of MR at each of two widely separated locations along the tilted, subsolar line of maximum current on Earth's magnetopause, confirming the operation of MR at two or more sites across the extended region where MR is expected to occur. The evidence results from in-situ observations of the associated ion and electron plasma distributions, present within each magnetic X-line structure, taken by two spacecraft passing through the active MR regions simultaneously.
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Affiliation(s)
- M W Dunlop
- Rutherford-Appleton Laboratory, Chilton, Oxfordshire, OX11 0QX, United Kingdom.
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Pu Z, Outeiro J, Batista A, Dillon O, Puleo D, Jawahir I. Surface Integrity in Dry and Cryogenic Machining of AZ31B Mg Alloy with Varying Cutting Edge Radius Tools. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.11.113] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dunlop MW, Zhang QH, Xiao CJ, He JS, Pu Z, Fear RC, Shen C, Escoubet CP. Reconnection at high latitudes: antiparallel merging. Phys Rev Lett 2009; 102:075005. [PMID: 19257682 DOI: 10.1103/physrevlett.102.075005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Indexed: 05/27/2023]
Abstract
New investigations have renewed the debate on the occurrence of magnetic reconnection of Earth's dayside magnetopause. Here, we show for the first time strong evidence for a high-latitude reconnection site, located on initially closed field lines, where the magnetic field orientations inside and outside the magnetopause are close to antiparallel. The evidence centers on repeated sampling of the ion diffusion region and associated null magnetic field by four spacecraft in formation, together with simultaneous monitoring of the local magnetosheath behavior by a fifth spacecraft.
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Affiliation(s)
- M W Dunlop
- SSTD, RAL, Chilton, DIDCOT, Oxfordshire OX11 0QX, United Kingdom.
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Wiegert O, Pu Z, Shor S, Joëls M, Krugers H. Glucocorticoid receptor activation selectively hampers N-methyl-d-aspartate receptor dependent hippocampal synaptic plasticity in vitro. Neuroscience 2005; 135:403-11. [PMID: 16125856 DOI: 10.1016/j.neuroscience.2005.05.039] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [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: 01/26/2005] [Revised: 05/12/2005] [Accepted: 05/19/2005] [Indexed: 11/30/2022]
Abstract
Corticosterone and exposure to stressful experiences have been reported to decrease hippocampal synaptic plasticity, in particular when relatively mild stimulation paradigms-presumably activating predominantly N-methyl-d-aspartate receptors-are being used. Using various stimulation paradigms and pharmacological approaches we tested therefore the hypothesis that elevated corticosterone levels, by activating glucocorticoid receptors, predominantly hamper N-methyl-D-aspartate receptor dependent synaptic plasticity in vitro. To address this, mouse hippocampal slices were treated for 20 min with corticosterone (100 nM) or vehicle and synaptic efficacy was examined 1-6 h later. First, we found that primed burst potentiation and synaptic potentiation after 10 Hz stimulation are predominantly N-methyl-D-aspartate receptor dependent, and are significantly suppressed after corticosterone treatment. Second, these latter effects were prevented by treating slices with the glucocorticoid receptor antagonist mifepristone prior to and during corticosterone administration. Third, theta burst potentiation, which was shown to involve activation of both N-methyl-D-aspartate receptors, voltage-dependent calcium channels and possibly other mechanisms, was not affected by corticosterone. However, theta-burst potentiation in the presence of nifedipine-singling out primarily the N-methyl-D-aspartate receptor dependent component-was reduced by corticosterone. These results indicate that corticosterone, via glucocorticoid receptor activation, selectively hampers N-methyl-D-aspartate receptor dependent synaptic plasticity in vitro and leaves more complex forms of long term potentiation unaffected. We speculate that these effects are involved in the impairment of cognitive performance by corticosteroid hormones after exposure to stressful and traumatic experiences.
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Affiliation(s)
- O Wiegert
- University of Amsterdam, Swammerdam Institute for Life Sciences, Section Neurobiology, Kruislaan 320, 1098 SM Amsterdam, The Netherlands.
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Pu Z, Li Y, Hou FJ, He F, Zhang N, Wu H, Liu WY. Structural studies of the glycopeptides of B-chain of cinnamomin--a type II ribosome-inactivating protein by nuclear magnetic resonance. Glycoconj J 2000; 17:749-59. [PMID: 11443276 DOI: 10.1023/a:1010957007038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Cinnamomin is a plant type II ribosome-inactivating protein (RIP) isolated from the seeds of Cinnamomum camphora. It consists of two nonidentical polypeptide chains (A- and B-chain) held together through one disulfide linkage. Its A- and B-chain contain 0.3% and 3.9% sugars respectively. The B-chain of cinnamomin was digested by pronase E and then the liberated glycopeptides were separated from non-glycopeptides by gel filtration chromatography on a Bio-Gel P-4 column. Three crude glycopeptides were obtained by continuing chromatography over anion-exchange resin (AG1-X2) in the buffer of 2% pyridine-acetic acid (pH 8.3) with a polygradient elution system. Through further purification by the gel filtration chromatography and HPLC, three major glycopeptides, GP1, GP2 and GP3 were obtained. Mainly by two-dimensional Nuclear Magnetic Resonance (NMR) including TOCSY, DQF-COSY, NOESY, HMQC and HMBC, their primary structures were analyzed as: Man\balpha1,3Man\balpha1,6(Man\balpha1,3)(Xyl\bbeta1,2)Man\bbeta1,4GlcNAc\bbeta1,4GlcNAc\bbeta1-(Gly-)Asn-Asn-Thr(GP1), Man\balpha1,6(Man\balpha1,3)(Xyl\bbeta1,2)Man\bbeta1,4GlcNAc\bbeta1,4(Fuc\balpha1,3)GlcNAc\bbeta1-Asn-Ala-Thr(GP2),Man\balpha1,6(Man\balpha1,3)Man\balpha1,6(Man\balpha 1,2 Man\balpha1,3)Man\bbeta1,4GlcNAc\bbeta1,4GlcNAc\bbeta1-(Ala-)Asn-Gly-Thr(GP3).
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Affiliation(s)
- Z Pu
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
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Liu WY, Pu Z. Ribotoxins and their applications in probing the topographical structure of ribosomes. J Nat Toxins 1999; 8:385-94. [PMID: 10591041] [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: 02/14/2023]
Abstract
Ribotoxins are a group of ribosome-inactivating proteins (RIPs) isolated mostly from plants. They inactivate ribosomes by a mechanism as RNA N-glycosidase that removes a specific adenine base from the highly conserved "S/R domain" in the largest ribosomal RNA. In this review, we introduce the major results from our laboratory in recent years on the study of the structure and function of RIPs and ribosomes: [1] Purification and characterization of the enzymatic mechanism of RIPs. Several new RIPs were purified and their RNA N-glycosidase and supercoil-dependent DNA endonuclease activities were studied. [2] The topographical structure of ribosomes. The relationship between the structure and function of ribosomes, especially of the "S/R domain" in rat 28S rRNA, were investigated by means of RIPs and other chemical probes. [3] The cytotoxicity of two RIPs to carcinoma cells. [4] Several new methods for studying RIPs and probing the structure of ribosomes were developed, i.e., radioassays for RNA N-glycosidase, glycoprotein detection by fluorescent labeling on SDS-polyacrylamide gels, and methods for small RNA sequencing.
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Affiliation(s)
- W Y Liu
- Shanghai Institute of Biochemistry, Academia Sinica, China.
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Chen R, Xu YZ, Wu J, Pu Z, Jin SW, Liu WY, Xia ZX. Purification and characterization of trichomaglin--a novel ribosome-inactivating protein with abortifacient activity. Biochem Mol Biol Int 1999; 47:185-93. [PMID: 10205663 DOI: 10.1080/15216549900201193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Trichomaglin, a novel ribosome-inactivating protein, has been isolated from root tuber of a plant Maganlin (Trichosanthes Lepiniate, Cucurbitaceae). The isolation and purification procedure included ammonium sulfate precipitation, Sephadex G-75 chromatography and CM-Sephadex C-50 chromatography. The protein was identified to be homogeneous by SDS-PAGE and FPLC analysis. Its molecular weight is 24,673 dalton and isoelectric point is 5.8, determined by electrospray ionization mass spectroscopy and isoelectric focusing gel electrophoresis respectively. Trichomaglin can inhibit protein synthesis in rabbit reticulocyte lysate with ID50 of 10.1 nM. When rat ribosome was incubated with trichomaglin, a diagnostic RNA fragment appeared on polyacrylamide gel after ribosomal RNAs were treated with acidic aniline. It was concluded that trichomaglin is an RNA N-glycosidase. In addition, it has been verified to be an abortifacient protein.
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Affiliation(s)
- R Chen
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, China
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Abstract
The strong hydrophobic interaction between the A- and B-chains of cinnamomin, a type II ribosome-inactivating protein, makes it difficult to separate A- and B-chains after the disulfide bond is broken. We failed to separate the A-chain from B-chain of cinnamomin using methods under usual conditions. A convenient method for purification of the A- and B-chains of cinnamomin on a large scale has been developed. We chose urea to weaken the non-covalent interaction between the A- and B-chains. In the presence of 4M urea, the A- and B-chains of the reduced cinnamomin are separated effectively by DEAE-cellulose chromatography. The purified A-chain still displays the RNA N-glycosidase activity and the B-chain loses the lectin activity. After refolding in vitro in the presence of lactose, the B-chain is renatured and the active B-chain with lectin activity can be further purified by Sepharose 4B affinity chromatography. From 80 mg of cinnamomin, 10 mg of A-chain (25%) and 38 mg of the B-chain (95%) were obtained. In addition, the intrinsic fluorescence spectra of the A- and B-chains were employed to study the structural changes in the active and the non-active forms of cinnamomin A- and B-chains.
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Affiliation(s)
- Z Pu
- Laboratory for Ribosome Research, Shanghai Institute of Biochemistry, Academia Sinica, China
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Zhang Z, Pu Z, Xu L, Xu G, Wang Q, Xu G, Wu L, Chen J. [Scanning electron microscope observation and image quantitative analysis of Hippocampi]. Yao Xue Xue Bao 1998; 33:951-4. [PMID: 12016864] [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: 02/25/2023]
Abstract
The "scale-like projects" on the derma of 3 species of Hippocampi, H. kuda Bleerer, H. trimaculatus Leach and H. japonicus Kaup were observed by scanning electron microscope (SEM). Results showed that some characteristics such us size, shape and type of arrangement of the "scale-like projects" can be considered as the evidence for microanalysis. Image quantitative analysis of the "scale-like project" was carried out on 45 pieces of photograph using area, long diameter, short diameter and shape factor as parameters. No difference among the different parts of the same species was observed, but significant differences were found among the above 3 species.
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Affiliation(s)
- Z Zhang
- China Pharmaceutical University, Nanjing 210009
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Zhang Z, Pu Z, Xu L, Wang Q, Xu G. [The SEM observation of the medicinal materials "hailong"]. Zhong Yao Cai 1997; 20:604-6. [PMID: 12572501] [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: 02/28/2023]
Abstract
The SEM observation of the medicinal meterials "Hailong" have been carried out. The results showed there are significantly difference among 7 species "Hailong".
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Affiliation(s)
- Z Zhang
- China Pharmaceutical University, Nanjing 210009
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Pu Z, Lu BY, Liu WY, Jin SW. Characterization of the enzymatic mechanism of gamma-momorcharin, a novel ribosome-inactivating protein with lower molecular weight of 11,500 purified from the seeds of bitter gourd (Momordica charantia). Biochem Biophys Res Commun 1996; 229:287-94. [PMID: 8954120 DOI: 10.1006/bbrc.1996.1794] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The enzymatic mechanism of a small ribosome-inactivating protein, gamma-momorcharin, purified from the seeds of Momordica charantia, has been characterized. By SDS-polyacrylamide and electrospray ionization mass spectrometry, its molecular weight was measured to be 11,500 daltons which is much lower than other RIPs known to date. It can inhibit the protein synthesis in the rabbit reticulocyte cell-free system with ID50 of 55 nM. When rat liver ribosome was incubated with gamma-momorcharin, a diagnostic RNA fragment appeared on the gel after rRNAs were treated with acid aniline. Sequencing of the RNA fragment indicates that the action site of gamma-momorcharin in 28S ribosomal RNA of rat liver is at a specific adenosine (position 4324), which is in a highly conserved loop of 28S rRNA.
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Affiliation(s)
- Z Pu
- Shanghai Institute of Biochemistry, Academia Sinica, China
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Pu Z, Zhu W, Jing Z, Zeng Z, Zuo W. [Effect of tetramethyl pyrazine on coronary vasoconstriction induced by endothelin-1 in dogs]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1996; 18:133-7. [PMID: 9208604] [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: 02/04/2023]
Abstract
The purpose of this study was to determine the antagonistic effect of tetramethyl pyrazine (TMP), a sort of chinese herbal medicine, on coronary vasoconstriction induced by endothelin-1 (ET-1) in closed chest dogs. ET-1 at doses of 50, 75 and 100 pmol was selectively administered into left main coronary artery and coronary angiogram was performed in 1, 3 and 10 minutes after intracoronary administration of ET-1. After a 60 minute interval ET-1 administration and coronary angiogram were repeated in two groups in group A with 5 dogs intravenous infusion of saline solution was administered while in group B with 4 dogs TMP was infused at a dose of 80 mg/kg. Blood pressure of intra-femoral artery, heart rate and ECG were monitored during the experiment. The study demonstrated that coronary vessel diameter significantly decreased by 17% (P < 0.02) in group A and 20% (P < 0.02) in group B, associated with ischemia in ECG (4/5 in group A and 3/4 in group B) after intracoronary administration of ET-1. Endothelin-1 induced coronary vasoconstriction and ischemic changes in ECG were significantly inhibited by intravenous TMP. The coronary diameter increased by 20% (P < 0.03) after administration of TMP, comparing with the control group. Heart rate had an increased response to TMP. In conclusion this study demonstrated that intracoronary administration of ET-1 caused significant myocardial ischemia through coronary vasoconstriction, which was inhibited by TMP. TMP significantly dilated coronary artery.
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Affiliation(s)
- Z Pu
- PUMC Hospital, CAMS and PUMC, Beijing
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Wang X, Xie W, Long Q, He D, Lin G, Pang Y, Pu Z. Stimulation of thymidine kinase activity in baculovirus infected cells is not due to a virus-coded enzyme. Arch Virol 1992; 127:315-9. [PMID: 1333755 DOI: 10.1007/bf01309593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A polyhedrin-positive recombinant autographa californica nuclear polyhedrosis virus (AcNPV) carrying a herpes simplex virus thymidine kinase gene under the control of the SynXIV promoter, a fusion of synthetic and linker-modified polyhedrin promoters, has been constructed. When this recombinant baculovirus was used to infect a variant of Spodoptera frugiperda cells deficient in thymidine kinase (TK-), a high level of TK activity was detected. These results, in conjunction with the demonstration that AcNPV could replicate in TK- S. frugiperda cells and no TK activity was found throughout infection, imply that the wild type virus-stimulated TK activity observed in S. frugiperda (TK+) cells is not contributed by a virus-coded enzyme.
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Affiliation(s)
- X Wang
- Institute of Entomology, Zhongshan University, Guangzhou, People's Republic of China
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Zhang CW, Li WB, Pu Z, Xie L, Lu YJ, Tuo BL, Chen XY, Rao GX, Wang L, Liu WZ. [Evaluation of the effectiveness of a disinfectant solution]. Hua Xi Yi Ke Da Xue Xue Bao 1987; 18:286-9. [PMID: 3679183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Nie S, Li D, Pu Z, Xu Y. The flux growth and crystallographic investigation of a new compound, Pb 3Bi 0.1Nb 2O 8.15, in the PbO–Bi 2O 3–Nb 2O 5system. Acta Crystallogr A 1987. [DOI: 10.1107/s0108767387079297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Pu Z, Pierce NF, Silverstein AM, Prendergast RA. Conjunctival immunity: compared effects of ocular or intestinal immunization in rats. Invest Ophthalmol Vis Sci 1983; 24:1411-2. [PMID: 6618801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The ability to induce a conjunctival antitoxin response by conjunctival or enteric administration of cholera toxin antigen was studied in rats. Repeated enteric immunization caused a vigorous jejunal antitoxin response, but none in the conjunctiva. Enteric immunization did, however, prime for a conjunctival antitoxin response to locally applied antigen, as did direct ocular administration of cholera toxin. Vigorous conjunctival antitoxin responses occurred only after ocular challenge, and were localized to the challenged eye. These results agree with the notions that (1) specific memory cells migrate to the conjunctiva after enteric immunization, or arise locally after ocular immunization; and (2) specific antibody-producing plasma cells arise almost entirely within the immunized conjunctiva, and few if any migrate to the conjunctiva from distant mucosae or from the conjunctiva of the immunized eye to that of the nonimmunized eye.
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Hess AD, Tutschka PJ, Pu Z, Santos GW. Effect of cyclosporin A on human lymphocyte responses in vitro. IV. Production of T cell stimulatory growth factors and development of responsiveness to these growth factors in CsA-treated primary MLR cultures. J Immunol 1982; 128:360-7. [PMID: 6459375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Hess AD, Tutschka PJ, Pu Z, Santos GW. Effect of cyclosporin A on human lymphocyte responses in vitro. IV. Production of T cell stimulatory growth factors and development of responsiveness to these growth factors in CsA-treated primary MLR cultures. The Journal of Immunology 1982. [DOI: 10.4049/jimmunol.128.1.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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