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Bian F, Goda C, Wang G, Lan YW, Deng Z, Gao W, Acharya A, Reza AA, Gomez-Arroyo J, Merjaneh N, Ren X, Goveia J, Carmeliet P, Kalinichenko VV, Kalin TV. FOXF1 promotes tumor vessel normalization and prevents lung cancer progression through FZD4. EMBO Mol Med 2024; 16:1063-1090. [PMID: 38589650 PMCID: PMC11099127 DOI: 10.1038/s44321-024-00064-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/10/2024] Open
Abstract
Cancer cells re-program normal lung endothelial cells (EC) into tumor-associated endothelial cells (TEC) that form leaky vessels supporting carcinogenesis. Transcriptional regulators that control the reprogramming of EC into TEC are poorly understood. We identified Forkhead box F1 (FOXF1) as a critical regulator of EC-to-TEC transition. FOXF1 was highly expressed in normal lung vasculature but was decreased in TEC within non-small cell lung cancers (NSCLC). Low FOXF1 correlated with poor overall survival of NSCLC patients. In mice, endothelial-specific deletion of FOXF1 decreased pericyte coverage, increased vessel permeability and hypoxia, and promoted lung tumor growth and metastasis. Endothelial-specific overexpression of FOXF1 normalized tumor vessels and inhibited the progression of lung cancer. FOXF1 deficiency decreased Wnt/β-catenin signaling in TECs through direct transcriptional activation of Fzd4. Restoring FZD4 expression in FOXF1-deficient TECs through endothelial-specific nanoparticle delivery of Fzd4 cDNA rescued Wnt/β-catenin signaling in TECs, normalized tumor vessels and inhibited the progression of lung cancer. Altogether, FOXF1 increases tumor vessel stability, and inhibits lung cancer progression by stimulating FZD4/Wnt/β-catenin signaling in TECs. Nanoparticle delivery of FZD4 cDNA has promise for future therapies in NSCLC.
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Affiliation(s)
- Fenghua Bian
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Chinmayee Goda
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Guolun Wang
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Ying-Wei Lan
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
- Department of Child Health, Phoenix Children's Research Institute, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Zicheng Deng
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
- Department of Child Health, Phoenix Children's Research Institute, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Wen Gao
- Department of Child Health, Phoenix Children's Research Institute, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Anusha Acharya
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Abid A Reza
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Jose Gomez-Arroyo
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Nawal Merjaneh
- Center for Cancer and Blood Disorders, Phoenix Children's Hospital, 1919 E Thomas Rd., Phoenix, AZ, 85016, USA
| | - Xiaomeng Ren
- Division of Asthma Research of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Jermaine Goveia
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, VIB Center for Cancer Biology, Leuven, 3000, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, VIB Center for Cancer Biology, Leuven, 3000, Belgium
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, UAE
| | - Vladimir V Kalinichenko
- Department of Child Health, Phoenix Children's Research Institute, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA
- Division of Neonatology, Phoenix Children's Hospital, 1919 E Thomas Rd., Phoenix, AZ, 85016, USA
| | - Tanya V Kalin
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
- Department of Child Health, Phoenix Children's Research Institute, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA.
- Center for Cancer and Blood Disorders, Phoenix Children's Hospital, 1919 E Thomas Rd., Phoenix, AZ, 85016, USA.
- Department of Internal Medicine, Division of Pulmonary and Critical Care, University of Arizona College of Medicine-Phoenix, 475 N 5th Street, Phoenix, AZ, 85004, USA.
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Acharya A, Bian F, Gomez-Arroyo J, Wagner KA, Kalinichenko VV, Kalin TV. Hypoxia represses FOXF1 in lung endothelial cells through HIF-1α. Front Physiol 2024; 14:1309155. [PMID: 38274049 PMCID: PMC10809398 DOI: 10.3389/fphys.2023.1309155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 12/28/2023] [Indexed: 01/27/2024] Open
Abstract
Introduction: Forkhead Box F1 (FOXF1) transcription factor plays a critical role in lung angiogenesis during embryonic development and lung repair after injury. FOXF1 expression is decreased in endothelial cells after lung injury; however, molecular mechanisms responsible for the FOXF1 transcript changes in injured lung endothelium remain unknown. Methods: We used immunostaining of injured mouse lung tissues, FACS-sorted lung endothelial cells from hypoxia-treated mice, and data from patients diagnosed with hypoxemic respiratory failure to demonstrate that hypoxia is associated with decreased FOXF1 expression. Endothelial cell cultures were used to induce hypoxia in vitro and identify the upstream molecular mechanism through which hypoxia inhibits FOXF1 gene expression. Results: Bleomycin-induced lung injury induced hypoxia in the mouse lung tissue which was associated with decreased Foxf1 expression. Human FOXF1 mRNA was decreased in the lungs of patients diagnosed with hypoxemic respiratory failure. Mice exposed to hypoxia exhibited reduced Foxf1 expression in the lung tissue and FACS-sorted lung endothelial cells. In vitro, hypoxia (1% of O2) or treatment with cobalt (II) chloride increased HIF-1α protein levels but inhibited FOXF1 expression in three endothelial cell lines. Overexpression of HIF-1α in cultured endothelial cells was sufficient to inhibit Foxf1 expression. siRNA-mediated depletion of HIF-1α prevented the downregulation of Foxf1 gene expression after hypoxia or cobalt (II) chloride treatment. Conclusion: Hypoxia inhibits FOXF1 expression in endothelial cells in a HIF-1α dependent manner. Our data suggest that endothelial cell-specific inhibition of HIF-1α via gene therapy can be considered to restore FOXF1 and improve lung repair in patients with severe lung injury.
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Affiliation(s)
- Anusha Acharya
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Fenghua Bian
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jose Gomez-Arroyo
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Division of Pulmonary and Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Kimberly A. Wagner
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Vladimir V. Kalinichenko
- Phoenix Children’s Health Research Institute, University of Arizona College of Medicine—Phoenix, Phoenix, AZ, United States
- Division of Neonatology, Phoenix Children’s Hospital, Phoenix, AZ, United States
| | - Tanya V. Kalin
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Phoenix Children’s Health Research Institute, University of Arizona College of Medicine—Phoenix, Phoenix, AZ, United States
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Shukla S, Saha T, Rama N, Acharya A, Le T, Bian F, Donovan J, Tan LA, Vatner R, Kalinichenko V, Mascia A, Perentesis JP, Kalin TV. Ultra-high dose-rate proton FLASH improves tumor control. Radiother Oncol 2023; 186:109741. [PMID: 37315577 PMCID: PMC10527231 DOI: 10.1016/j.radonc.2023.109741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND PURPOSE Proton radiotherapy (PRT) offers potential benefits over other radiation modalities, including photon and electron radiotherapy. Increasing the rate at which proton radiation is delivered may provide a therapeutic advantage. Here, we compared the efficacy of conventional proton therapy (CONVpr) to ultrahigh dose-rate proton therapy, FLASHpr, in a mouse model of non-small cell lung cancers (NSCLC). MATERIALS AND METHODS Mice bearing orthotopic lung tumors received thoracic radiation therapy using CONVpr (<0.05 Gy/s) and FLASHpr (>60 Gy/s) dose rates. RESULTS Compared to CONVpr, FLASHpr was more effective in reducing tumor burden and decreasing tumor cell proliferation. Furthermore, FLASHpr was more efficient in increasing the infiltration of cytotoxic CD8+ T-lymphocytes inside the tumor while simultaneously reducing the percentage of immunosuppressive regulatory T-cells (Tregs) among T-lymphocytes. Also, compared to CONVpr, FLASHpr was more effective in decreasing pro-tumorigenic M2-like macrophages in lung tumors, while increasing infiltration of anti-tumor M1-like macrophages. Finally, FLASHpr treatment reduced expression of checkpoint inhibitors in lung tumors, indicating reduced immune tolerance. CONCLUSIONS Our results suggest that FLASH dose-rate proton delivery modulates the immune system to improve tumor control and might thus be a promising new alternative to conventional dose rates for NSCLC treatment.
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Affiliation(s)
- Samriddhi Shukla
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Taniya Saha
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Nihar Rama
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Anusha Acharya
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Tien Le
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Fenghua Bian
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Johnny Donovan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Lin Abigail Tan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Ralph Vatner
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnati, OH, USA, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Vladimir Kalinichenko
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States; Neonatology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States; Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States
| | - Anthony Mascia
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnati, OH, USA, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - John P Perentesis
- Cincinnati Children's Hospital Medical Center, Division of Oncology, Division of Experimental Hematology, Division of Biomedical Informatics, Cincinnati, OH 45229, USA
| | - Tanya V Kalin
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States; Neonatology, the Perinatal Institute of Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229, United States.
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Bian F, Lan YW, Zhao S, Deng Z, Shukla S, Acharya A, Donovan J, Le T, Milewski D, Bacchetta M, Hozain AE, Tipograf Y, Chen YW, Xu Y, Shi D, Kalinichenko VV, Kalin TV. Lung endothelial cells regulate pulmonary fibrosis through FOXF1/R-Ras signaling. Nat Commun 2023; 14:2560. [PMID: 37137915 PMCID: PMC10156846 DOI: 10.1038/s41467-023-38177-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 04/18/2023] [Indexed: 05/05/2023] Open
Abstract
Pulmonary fibrosis results from dysregulated lung repair and involves multiple cell types. The role of endothelial cells (EC) in lung fibrosis is poorly understood. Using single cell RNA-sequencing we identified endothelial transcription factors involved in lung fibrogenesis, including FOXF1, SMAD6, ETV6 and LEF1. Focusing on FOXF1, we found that FOXF1 is decreased in EC within human idiopathic pulmonary fibrosis (IPF) and mouse bleomycin-injured lungs. Endothelial-specific Foxf1 inhibition in mice increased collagen depositions, promoted lung inflammation, and impaired R-Ras signaling. In vitro, FOXF1-deficient EC increased proliferation, invasion and activation of human lung fibroblasts, and stimulated macrophage migration by secreting IL-6, TNFα, CCL2 and CXCL1. FOXF1 inhibited TNFα and CCL2 through direct transcriptional activation of Rras gene promoter. Transgenic overexpression or endothelial-specific nanoparticle delivery of Foxf1 cDNA decreased pulmonary fibrosis in bleomycin-injured mice. Nanoparticle delivery of FOXF1 cDNA can be considered for future therapies in IPF.
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Affiliation(s)
- Fenghua Bian
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Ying-Wei Lan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Shuyang Zhao
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Zicheng Deng
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Samriddhi Shukla
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Anusha Acharya
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Johnny Donovan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Tien Le
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - David Milewski
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Matthew Bacchetta
- Departments of Thoracic and Cardiac Surgery, Department of Biomedical Engineering, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ahmed Emad Hozain
- Department of Surgery, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Yuliya Tipograf
- Department of Surgery, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Ya-Wen Chen
- Department of Cell, Developmental, and Regenerative Biology, Department of Otolaryngology, Institute for Airway Sciences, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yan Xu
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Vladimir V Kalinichenko
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Tanya V Kalin
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Donovan J, Deng Z, Bian F, Shukla S, Gomez-Arroyo J, Shi D, Kalinichenko VV, Kalin TV. Improving anti-tumor efficacy of low-dose Vincristine in rhabdomyosarcoma via the combination therapy with FOXM1 inhibitor RCM1. Front Oncol 2023; 13:1112859. [PMID: 36816948 PMCID: PMC9933126 DOI: 10.3389/fonc.2023.1112859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/06/2023] [Indexed: 02/05/2023] Open
Abstract
Rhabdomyosarcoma (RMS) is a highly metastatic soft-tissue sarcoma that often develops resistance to current therapies, including vincristine. Since the existing treatments have not significantly improved survival, there is a critical need for new therapeutic approaches for RMS patients. FOXM1, a known oncogene, is highly expressed in RMS, and is associated with the worst prognosis in RMS patients. In the present study, we found that the combination treatment with specific FOXM1 inhibitor RCM1 and low doses of vincristine is more effective in increasing apoptosis and decreasing RMS cell proliferation in vitro compared to single drugs alone. Since RCM1 is highly hydrophobic, we developed innovative nanoparticle delivery system containing poly-beta-amino-esters and folic acid (NPFA), which efficiently delivers RCM1 to mouse RMS tumors in vivo. The combination of low doses of vincristine together with intravenous administration of NPFA nanoparticles containing RCM1 effectively reduced RMS tumor volumes, increased tumor cell death and decreased tumor cell proliferation in RMS tumors compared to RCM1 or vincristine alone. The combination therapy was non-toxic as demonstrated by liver metabolic panels using peripheral blood serum. Using RNA-seq of dissected RMS tumors, we identified Chac1 as a uniquely downregulated gene after the combination treatment. Knockdown of Chac1 in RMS cells in vitro recapitulated the effects of the combination therapy. Altogether, combination treatment with low doses of vincristine and nanoparticle delivery of FOXM1 inhibitor RCM1 in a pre-clinical model of RMS has superior anti-tumor effects and decreases CHAC1 while reducing vincristine toxicity.
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Affiliation(s)
- Johnny Donovan
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Zicheng Deng
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States,Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Fenghua Bian
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Samriddhi Shukla
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jose Gomez-Arroyo
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Division of Pulmonary and Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States
| | - Vladimir V. Kalinichenko
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Tanya V. Kalin
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,*Correspondence: Tanya V. Kalin,
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Donovan J, Deng Z, Bian F, Shukla S, Gomez-Arroyo J, Shi D, Kalinichenko VV, Kalin TV. Corrigendum: Improving anti-tumor efficacy of low-dose Vincristine in rhabdomyosarcoma via the combination therapy with FOXM1 inhibitor RCM1. Front Oncol 2023; 13:1163510. [PMID: 37124500 PMCID: PMC10135300 DOI: 10.3389/fonc.2023.1163510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/30/2023] [Indexed: 05/02/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fonc.2023.1112859.].
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Affiliation(s)
- Johnny Donovan
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Zicheng Deng
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States
- Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Fenghua Bian
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Samriddhi Shukla
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jose Gomez-Arroyo
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Division of Pulmonary and Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States
| | - Vladimir V. Kalinichenko
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Tanya V. Kalin
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- *Correspondence: Tanya V. Kalin,
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Liu X, Zhang YF, Zhan YL, Yue HX, Gui LT, Bian F, Wei WW, Jiang Y. [Study on the operation process and construction standard of an esophageal cancer screening cohort study]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1504-1508. [PMID: 34814575 DOI: 10.3760/cma.j.cn112338-20200930-01215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
One of the most cost-effective measures in cancer prevention on cancer is to advocate to be aware of the disease, consciously changing negative behaviors, and taking the initiative to participate in regular physical checkup programs. Esophageal cancer is one of the malignant tumors accompanied by a heavy disease burden in China. Routine screening, early diagnosis, and treatment are the critical points of preventing and treating the disease. Cohort studies help understand the natural history and risk factors of esophageal cancer and identify high-risk groups of the disease. This paper intends to discuss the construction specifications of the multi-dimensional dynamic follow-up shared cohort for esophageal cancer by studying the risk factors, monitoring, and collecting biological sample information, providing references for developing a standardized and unified screening cohort research procedure, and necessary standards on esophageal cancer in the future.
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Affiliation(s)
- X Liu
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y F Zhang
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y L Zhan
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - H X Yue
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L T Gui
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Bian
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - W W Wei
- Cancer Registry Office, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing 100021, China
| | - Y Jiang
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Yue HX, Zhan YL, Bian F, Zhang YF, Gui LT, Shi YJ, Meng YH, Zhang J, Jiang Y. [Data standard and data sharing in clinical cohort studies]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1299-1305. [PMID: 34814547 DOI: 10.3760/cma.j.cn112338-20200610-00831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Data standard plays an important role in the process of data collection, Integration and sharing in clinical cohort studies, and more attention have been paid to it. This paper summarizes the 5 international proven data standard model, analyze their characteristics and development status, and match their data modules with the general data set of the clinical cohorts to evaluate the international data standard models' applicability and provide reference for the development and improvement of the data standard model for clinical cohort studies in China.
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Affiliation(s)
- H X Yue
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y L Zhan
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Bian
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y F Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L T Gui
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y J Shi
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y H Meng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - J Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Jiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Liu X, Zhang YF, Zhan YL, Yue HX, Gui LT, Bian F, Wang YP, Jiang Y. [Application of AGREEⅡ in evaluating quality of esophageal cancer screening practice guidelines]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1312-1317. [PMID: 34814549 DOI: 10.3760/cma.j.cn112338-20200828-01105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
High-quality clinical practice guidelines are of great significance for standardizing the clinical diagnosis and treatment process and improving the overall quality of health care. The Appraisal of Guidelines for Research & Evaluation InstrumentⅡ (AGREEⅡ) is one of the recognized tools for the evaluation of the quality of clinical practice guidelines. It has been translated into Chinese and is widely used in guideline formulation and quality evaluation. This article intends to take the comparatively high-quality clinical practice guidelines in the field of esophageal cancer screening in China, i.e. "Expert Consensus on Early Esophageal Cancer and Precancerous Lesion Screening in China (2019, Xinxiang)" as an example, to interpret the use of AGREEⅡ item by item, which might provide a reference for medical and health workers to better understand and use the assessment tool.
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Affiliation(s)
- X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y F Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y L Zhan
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - H X Yue
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L T Gui
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Bian
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y P Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Jiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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10
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Abstract
Cannabinoid/endocannabinoid signaling is primarily mediated by cannabinoid receptor type 1 (CB1; encoded by Cnr1) and/or type 2 (CB2; encoded by Cnr2). Here, we show that Cnr1-/-Cnr2-/- mice are subfertile as a result of compromised implantation. Upon implantation, the epithelium is smooth and adhered to the blastocyst trophectoderm within the implantation chamber (crypt) in wild-type mice, whereas the epithelium in Cnr1-/-Cnr2-/- mice is ruffled, which compromises appropriate blastocyst-uterine interactions. The suboptimal implantation leads to higher incidence of pregnancy failure in Cnr1-/-Cnr2-/- mice. Histological analysis revealed heightened edema around the implantation chamber in these deleted females. With the use of a reporter mouse line, we observed that CB2 is present on endothelial cells of uterine blood vessels, and its absence leads to blood vessel leakage during implantation. These results suggest that appropriately regulated uterine edema is important to optimal implantation.
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MESH Headings
- Animals
- Embryo Implantation/genetics
- Female
- Infertility, Female/genetics
- Infertility, Female/metabolism
- Mice
- Mice, Knockout
- Receptor, Cannabinoid, CB1/genetics
- Receptor, Cannabinoid, CB1/metabolism
- Receptor, Cannabinoid, CB2/genetics
- Receptor, Cannabinoid, CB2/metabolism
- Signal Transduction/physiology
- Uterus/metabolism
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Affiliation(s)
- Yingju Li
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Fenghua Bian
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Xiaofei Sun
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
- Correspondence: Sudhansu K. Dey, PhD, or Xiaofei Sun, PhD, Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, MLC 7045, 3333 Burnet Avenue, Cincinnati, Ohio 45229. E-mail: or
| | - Sudhansu K Dey
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
- Correspondence: Sudhansu K. Dey, PhD, or Xiaofei Sun, PhD, Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, MLC 7045, 3333 Burnet Avenue, Cincinnati, Ohio 45229. E-mail: or
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11
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Ruan G, Xu J, Wang K, Zheng S, Wu J, Ren J, Bian F, Chang B, Zhu Z, Han W, Ding C. Associations between serum S100A8/S100A9 and knee symptoms, joint structures and cartilage enzymes in patients with knee osteoarthritis. Osteoarthritis Cartilage 2019; 27:99-105. [PMID: 30240939 DOI: 10.1016/j.joca.2018.08.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 04/04/2018] [Revised: 08/12/2018] [Accepted: 08/28/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Animal studies suggest that S100A8/S100A9 may be involved in the pathogenesis of osteoarthritis (OA); however, there has been no clinical study examining the associations between serum S100A8/S100A9 and knee symptoms, joint structures and cartilage degradation enzymes in knee OA patients so far. Therefore, this study was designed to investigate the cross-sectional associations between serum levels of S100A8/S100A9 and the outcomes in patients with knee OA. DESIGN A total of 141 subjects with clinical knee OA were included. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score was used to assess joint symptoms. Magnetic resonance imaging (MRI) was used to measure knee structural abnormalities including cartilage defects. Knee radiography was used to assess joint space narrowing (JSN), osteophytes and the radiographic severity of OA. Enzyme-linked immunosorbent assay (ELISA) was used to measure the serum levels of S100A8/S100A9, matrix metalloproteinase (MMP)-3, MMP10 and MMP13. RESULTS In multivariable analyses, serum S100A8/S100A9 were positively associated with total WOMAC score (β: 0.111 per 10 ng/ml, P = 0.021), WOMAC weight-bearing pain (β: 0.015 per 10 ng/ml, P = 0.043) and WOMAC physical dysfunction (β: 0.091 per 10 ng/ml, P = 0.010), and had positive associations with total cartilage defects and cartilage defects at lateral femoral, lateral tibial and medial femoral sites (ORs: 1.006-1.008 per 10 ng/ml, all P < 0.05) and serum levels of MMP3 (β: 0.002 per 10 ng/ml, P = 0.032) in patients with clinical knee OA. CONCLUSIONS Serum levels of S100A8/S100A9 were positively associated with increased knee symptoms, cartilage defects and serum cartilage degradation enzymes in patients with knee OA, suggesting that S100A8/S100A9 may have a role to play in knee OA. Future longitudinal studies are required to confirm these findings.
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Affiliation(s)
- G Ruan
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - J Xu
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - K Wang
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - S Zheng
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.
| | - J Wu
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - J Ren
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - F Bian
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - B Chang
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Z Zhu
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - W Han
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - C Ding
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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12
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Ruan G, Xu J, Wang K, Wu J, Zhu Q, Ren J, Bian F, Chang B, Bai X, Han W, Ding C. Associations between knee structural measures, circulating inflammatory factors and MMP13 in patients with knee osteoarthritis. Osteoarthritis Cartilage 2018; 26:1063-1069. [PMID: 29753949 DOI: 10.1016/j.joca.2018.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 06/30/2017] [Revised: 02/25/2018] [Accepted: 05/03/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate cross-sectional associations between serum level of Matrix metalloproteinase (MMP)13 and knee structural measures and circulating inflammatory factors in patients with symptomatic knee osteoarthritis (OA). DESIGN A total of 149 subjects with symptomatic knee OA were included. Magnetic resonance imaging was used to measure infrapatellar fat pad (IPFP) volume, IPFP signal intensity alternation, cartilage volume and cartilage defects. Knee radiography was used to assess radiographic OA using the Kellgren-Lawrence (K-L) grading system. Enzyme-linked immunosorbent assay was used to measure the serum levels of inflammatory factors and MMP13. RESULTS In multivariable analyses, serum MMP13 was negatively associated with cartilage volume at patellar site (β: -32.94 mm3 per 10 ng/ml, P < 0.05), and positively associated with cartilage defect at medial femoral site (OR: 1.13 per 10 ng/ml, P < 0.05). Also, MMP13 was positively associated with K-L grading and IPFP signal intensity alteration (OR: 1.14 and 1.15 per 10 ng/ml, respectively, both P < 0.05), and negatively associated with IPFP volume (β: -0.34 cm3 per 10 ng/ml, P < 0.05). Furthermore, serum level of adiponectin was negatively associated serum MMP13 quartiles (OR: 0.66 per 10 μg/ml, P < 0.05), and serum levels of tumor necrosis factor (TNF)-α, interleukin (IL)-8 and IL-18 were positively associated with serum MMP13 quartiles (ORs: 1.01-1.18 per 10 pg/ml, all P < 0.05). CONCLUSIONS Serum level of MMP13 was associated with knee structural abnormalities as well as serum inflammatory factors. These suggest that systemic MMP13 may play a role in knee OA, and could be regulated by inflammatory factors.
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Affiliation(s)
- G Ruan
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - J Xu
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - K Wang
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - J Wu
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Q Zhu
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - J Ren
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - F Bian
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - B Chang
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - X Bai
- Translational Research Centre, Academy of Orthopaedics, Guangdong Province, China; School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
| | - W Han
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
| | - C Ding
- Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Translational Research Centre, Academy of Orthopaedics, Guangdong Province, China; School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
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13
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Jin RR, Li JJ, Zhang J, Li JL, Bian F, Deng GJ, Ma S, Su XW, Zhao J, Jiang Y. [Management programs on diabetes among Chinese adults in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:407-411. [PMID: 29699027 DOI: 10.3760/cma.j.issn.0254-6450.2018.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the current situation on management of diabetes mellitus patients aged 35 and above in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases, in China. Methods: Local residents, aged 18 years and above were randomly selected by a complex, multistage, probability sampling method. Face-to-face questionnaire survey was carried out between November and December 2016. Rates regarding prevalence, treatment and management of diabetes were calculated, and influencing factors of diabetes were analyzed by using the non-conditional logistic regression model. Results: A total of 3 213 residents aged ≥35 years were included in this study, of which 11.48% (369/3 213) reported that they had ever been informed by a doctor or other health worker that their blood sugar level was high or being diabetic. The rate of self-reported treatment among the diabetic patients was 83.20% (307/369). Rates on overall management and standardized management were 69.92% (258/369) and 53.66% (198/369), respectively. Higher rates were seen in residents aged 55 to 64 years, 76.32% for overall management and 59.65% for standardized management. Through multiple logistic regression analysis, we found that standardized management for diabetes was much higher in the Demonstration Areas located in the eastern areas (OR=2.942, 95%CI: 1.547-5.594), or patients with characteristics including high implementation score (OR=3.499, 95%CI: 1.865-6.563), already signed family doctors (OR=5.661, 95%CI: 3.237-9.899), or without hypertension (OR=1.717, 95%CI: 1.010- 2.920). Residents who were living in the first and second batch areas of implementation or responding to the NCDs with positive attitude were more likely to accept standardized management. Conclusion: Prevention and management programs on diabetes had met the requirements set for the Demonstration Areas which had promoted the specific implementation and further development of standardized management on diabetes.
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Affiliation(s)
- R R Jin
- School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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14
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Li JJ, Li JL, Zhang J, Jin RR, Ma S, Deng GJ, Su XW, Bian F, Qu YM, Hu LL, Jiang Y. [Study on the overall implementation status of the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:417-421. [PMID: 29699029 DOI: 10.3760/cma.j.issn.0254-6450.2018.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the current overall status of implementation on the National Demonstration Areas of Comprehensive Prevention and Control of Non-communicable Diseases. Methods: According to the scheme design of the questionnaires, all the National Demonstration Areas were involved in this study. For each National Demonstration Areas, eight departments were selected to complete a total of 12 questionnaires. Results: Scores related to the implementation of the National Demonstration Areas accounted for 71.8% of the total 170 points. Based on the scores gathered from this study, the 23-items-index-system that represented the status of project implementation was classified into seven categories. Categories with higher percentile scores would include: monitoring (88.0%), safeguard measures (75.0%), health education and health promotion (75.0%). Categories with lower percentile scores would include: the national health lifestyle actions (67.7%), community diagnosis (66.7%), discovery and intervention of high-risk groups (64.7%), and patient management (60.9%). There were significant differences noticed among the eastern, central and western areas on items as safeguard measures, health education/promotion, discovery and intervention of high-risk groups. In all, the implementation programs in the eastern Demonstration Areas seemed better than in the central or western regions. As for the 23 items, five of the highest scores appeared on policy support, mortality surveillance, tumor registration, reporting system on cardiovascular/cerebrovascular events, and on tobacco control, respectively. However, the lowest five scores fell on healthy diet, patient self-management program, oral hygiene, setting up the demonstration units and promotion on basic public health services, respectively. The overall scores in the eastern region was higher than that in the central or the western regions. The scores in the central and western regions showed basically the same. Conclusions: The overall status of implementation on the National Demonstration Areas was satisfactory. Future attention should be focusing on patient management as well as discovery and intervention of high-risk groups, which also presented the lowest scores, in this survey.
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Affiliation(s)
- J J Li
- School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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15
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Bian F, Zhang GL, Wang FM, Yang D, Gao YY, Li J, Li Y. [Clinical effect of endoscopic tissue adhesive injection versus its combination with modified lauromacrogol sandwich injection in treatment of gastric varices]. Zhonghua Gan Zang Bing Za Zhi 2016; 24:786-789. [PMID: 27938567 DOI: 10.3760/cma.j.issn.1007-3418.2016.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- F Bian
- Drpartment of Gastroenterology, Beilun District People's Hospital in Ningbo City, Ningbo 315800, China
| | - G L Zhang
- Department of Gastroenterology , The First Central Hospital of Tianjin, Tianjin 300192, China
| | - F M Wang
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin 300170, China
| | - D Yang
- Department of Gastroenterology, The First Central Clinical College, Tianjin Medical University, Tianjin 300070, China
| | - Y Y Gao
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin 300170, China
| | - J Li
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin 300170, China
| | - Y Li
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin 300170, China
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Zang L, Liu Y, Geng J, Luo Y, Bian F, Lv X, Yang J, Liu J, Peng Y, Li Y, Sun Y, Bosch-Traberg H, Mu Y. Efficacy and safety of liraglutide versus sitagliptin, both in combination with metformin, in Chinese patients with type 2 diabetes: a 26-week, open-label, randomized, active comparator clinical trial. Diabetes Obes Metab 2016; 18:803-11. [PMID: 27060930 PMCID: PMC5084818 DOI: 10.1111/dom.12674] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/30/2016] [Accepted: 04/04/2016] [Indexed: 01/03/2023]
Abstract
AIMS To compare the efficacy and safety of liraglutide versus sitagliptin as add-on to metformin after 26 weeks of treatment in Chinese patients with type 2 diabetes mellitus (T2DM). METHODS This 26-week open-label, active comparator trial (NCT02008682) randomized patients (aged 18-80 years) with T2DM inadequately controlled with metformin [glycated haemoglobin (HbA1c) 7.0-10.0% (53-86 mmol/mol)] 1 : 1 to once-daily subcutaneously administered liraglutide 1.8 mg (n = 184) or once-daily oral sitagliptin 100 mg (n = 184), both as add-on to metformin. The primary endpoint was change in HbA1c from baseline to week 26. RESULTS Liraglutide was superior to sitagliptin in reducing HbA1c from baseline [8.1% (65 mmol/mol)] to 26 weeks, as evidenced by estimated mean HbA1c change of -1.65% (-18.07 mmol/mol) versus -0.98% (-10.72 mmol/mol), respectively [estimated treatment difference for liraglutide vs sitagliptin of -0.67% (95% CI -0.86, -0.48) or -7.35 mmol/mol (95% CI -9.43; -5.26); p < 0.0001]. More patients receiving liraglutide (76.5%) than sitagliptin (52.6%) achieved the HbA1c target of <7.0% (53 mmol/mol) at week 26 [odds ratio 3.65 (95% CI 2.18, 6.12); p < 0.0001]. Reductions in fasting plasma glucose, 7-point self-measured plasma glucose and body weight were greater with liraglutide than with sitagliptin (p < 0.0001 for all). More patients experienced nausea (14.8% vs 0.5%), diarrhoea (8.2% vs 2.2%) and decreased appetite (10.9% vs 0.5%) with liraglutide than sitagliptin. Two hypoglycaemic episodes were confirmed for liraglutide and one for sitagliptin; none were severe or nocturnal. CONCLUSIONS Liraglutide provided better glycaemic control and greater body weight reduction than sitagliptin when administered as add-on to metformin. More patients had nausea, diarrhoea and decreased appetite with liraglutide versus sitagliptin.
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Affiliation(s)
- L Zang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, China
| | - Y Liu
- Department of Endocrinology, Second Hospital of Jilin University, Jilin, China
| | - J Geng
- Department of Endocrinology, Harrison International Peace Hospital, Hengshui, China
| | - Y Luo
- Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - F Bian
- Department of Endocrinology, Cangzhou People's Hospital, Cangzhou, China
| | - X Lv
- Department of Endocrinology, PLA, Military General Hospital of Beijing, Beijing, China
| | - J Yang
- Department of Endocrinology, Central Hospital of Minhang District, Shanghai, China
| | - J Liu
- Department of Endocrinology, Fifth People's Hospital of Shanghai, Shanghai, China
| | - Y Peng
- Department of Endocrinology, Shanghai First People's Hospital, Shanghai, China
| | - Y Li
- Department of Endocrinology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y Sun
- Novo Nordisk (China) Pharmaceuticals Co., Ltd, Beijing, China
| | | | - Y Mu
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, China
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Bian F, Gao F, Kartashov AV, Jegga AG, Barski A, Das SK. Polycomb repressive complex 1 controls uterine decidualization. Sci Rep 2016; 6:26061. [PMID: 27181215 PMCID: PMC4867636 DOI: 10.1038/srep26061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 01/12/2016] [Accepted: 04/27/2016] [Indexed: 01/21/2023] Open
Abstract
Uterine stromal cell decidualization is an essential part of the reproductive process. Decidual tissue development requires a highly regulated control of the extracellular tissue remodeling; however the mechanism of this regulation remains unknown. Through systematic expression studies, we detected that Cbx4/2, Rybp, and Ring1B [components of polycomb repressive complex 1 (PRC1)] are predominantly utilized in antimesometrial decidualization with polyploidy. Immunofluorescence analyses revealed that PRC1 members are co-localized with its functional histone modifier H2AK119ub1 (mono ubiquitination of histone-H2A at lysine-119) in polyploid cell. A potent small-molecule inhibitor of Ring1A/B E3-ubiquitin ligase or siRNA-mediated suppression of Cbx4 caused inhibition of H2AK119ub1, in conjunction with perturbation of decidualization and polyploidy development, suggesting a role for Cbx4/Ring1B-containing PRC1 in these processes. Analyses of genetic signatures by RNA-seq studies showed that the inhibition of PRC1 function affects 238 genes (154 up and 84 down) during decidualization. Functional enrichment analyses identified that about 38% genes primarily involved in extracellular processes are specifically targeted by PRC1. Furthermore, ~15% of upregulated genes exhibited a significant overlap with the upregulated Bmp2 null-induced genes in mice. Overall, Cbx4/Ring1B-containing PRC1 controls decidualization via regulation of extracellular gene remodeling functions and sheds new insights into underlying molecular mechanism(s) through transcriptional repression regulation.
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Affiliation(s)
- Fenghua Bian
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Fei Gao
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Andrey V Kartashov
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Anil G Jegga
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Artem Barski
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sanjoy K Das
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 49267, USA.,Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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Abstract
Adherence of an embryo to the uterus represents the most critical step of the reproductive process. Implantation is a synchronized event between the blastocyst and the uterine luminal epithelium, leading to structural and functional changes for further embryonic growth and development. The milieu comprising the complex process of implantation is mediated by estrogen through diverse but interdependent signaling pathways. Mouse models have demonstrated the relevance of the expression of estrogen-modulated paracrine factors to uterine receptivity and implantation window. More importantly, some factors seem to serve as molecular links between different estrogen pathways, promoting cell growth, acting as molecular chaperones, or amplifying estrogenic effects. Abnormal expression of these factors can lead to implantation failure and infertility. This review provides an overview of several well-characterized signaling pathways that elucidates the molecular cross talk involved in the uterus during early pregnancy.
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Affiliation(s)
- I Robertshaw
- Department of Obstetrics and GynecologyUniversity of Cincinnati, West Chester, Ohio, USA Division of Reproductive SciencesCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - F Bian
- Division of Reproductive SciencesCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA Perinatal InstituteCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - S K Das
- Division of Reproductive SciencesCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA Perinatal InstituteCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA Department of PediatricsUniversity of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Gao F, Bian F, Ma X, Kalinichenko VV, Das SK. Control of regional decidualization in implantation: Role of FoxM1 downstream of Hoxa10 and cyclin D3. Sci Rep 2015; 5:13863. [PMID: 26350477 PMCID: PMC4563553 DOI: 10.1038/srep13863] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 08/07/2015] [Indexed: 02/07/2023] Open
Abstract
Appropriate regulation of regional uterine stromal cell decidualization in implantation, at the mesometrial triangle and secondary decidual zone (SDZ) locations, is critical for successful pregnancy, although the regulatory mechanisms remain poorly understood. In this regard, the available animal models that would specifically allow mechanistic analysis of site-specific decidualization are strikingly limited. Our study found that heightened expression of FoxM1, a Forkhead box transcription factor, is regulated during decidualization, and its conditional deletion in mice reveals failure of implantation with regional decidualization defects such as a much smaller mesometrial decidua with enlarged SDZ. Analysis of cell cycle progression during decidualization both in vivo and in vitro demonstrates that the loss of FoxM1 elicits diploid cell deficiency with enhanced arrests prior to mitosis and concomitant upregulation of polyploidy. We further showed that Hoxa10 and cyclin D3, two decidual markers, control transcriptional regulation and intra-nuclear protein translocation of FoxM1 in polyploid cells, respectively. Overall, we suggest that proper regional decidualization and polyploidy development requires FoxM1 signaling downstream of Hoxa10 and cyclin D3.
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Affiliation(s)
- Fei Gao
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Fenghua Bian
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Xinghong Ma
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- College of Life Science, Northeast Agricultural University, Harbin, China
| | - Vladimir V. Kalinichenko
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Sanjoy K. Das
- Division of Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
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Yu Y, Zhou J, Li Q, Bian F, Cao CS, Jin X, Liu Y. The preliminary application of assessment system for cancer pain management. Eur Rev Med Pharmacol Sci 2015; 19:1164-1169. [PMID: 25912575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To apply the assessment system for cancer pain management preliminarily, explore the issues in cancer pain diagnosis and treatment, and analyze the differences between oncology department and non-oncology in cancer pain diagnosis and treatment. PATIENTS AND METHODS The validated questionnaires were collected from department of medical oncology of three hospitals including Xuzhou Central Hospital. Subjects included 41 doctors, 43 nurses, 50 patients, and 12 wards. The data was analyzed to find the main issues as far in cancer pain management. Twelve units of oncology department and 15 units of non-oncology in three hospitals including Xuzhou Central Hospital were assessed with assessment system for cancer pain management. Rank test was conducted to analyze the differences in cancer pain diagnosis and treatment between oncology department and non-oncology. RESULTS The average scores of doctors, nurses, wards were 85.4, 88.5, 83.8, respectively, while the average score of patients was 68.7. The percentile of analgesic efficacy and safety in patients was 81.7 and the percentile of analgesic opinion changes was only 55.8, indicating that it was necessary to enhance the education of concept about pain management. The average scores of assessment were 82.2 ± 2.1 and 39.9 ± 3.6 for oncology and non-oncology, respectively. The Wilcoxon value of Rank test was 120.0, indicating the significant difference between the two (p < 0.01). It suggests that there is still a great shortage in cancer pain diagnosis and treatment in non-oncology, and there is an urgent need to further strengthen the cancer pain management-related continuing education. CONCLUSIONS In cancer pain treatment-related clinical work, patients' pain education still needs to be strengthened; in comparison with oncology, the cancer pain management-related continuing education for non-oncology also needs to be strengthened.
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Affiliation(s)
- Y Yu
- Department of Medical Oncology, Department of Clinical Laboratory, Xuzhou Hospital, Affiliated to Medical College of Southeast University and Xuzhou Central Hospital, Xuzhou, China.
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Abstract
Bio-inspired laminated graphite nanosheets/copper composites with modified mechanical properties.
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Affiliation(s)
- P. Wang
- Shanghai Hiwave Advanced Materials Technology Co., Ltd
- Shanghai 200240
- P. R. China
| | - W. Liu
- Shanghai Hiwave Advanced Materials Technology Co., Ltd
- Shanghai 200240
- P. R. China
| | - L. Chen
- Shanghai Hiwave Advanced Materials Technology Co., Ltd
- Shanghai 200240
- P. R. China
| | - C. Mu
- Wenzhou Hongfeng Electrical Alloy Co., Ltd
- Wenzhou 325603
- P. R. China
| | - G. Qi
- Wenzhou Hongfeng Electrical Alloy Co., Ltd
- Wenzhou 325603
- P. R. China
| | - F. Bian
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics Chinese Academy of Sciences
- Shanghai 201204
- P. R. China
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Zhang Y, Zhen H, Yao W, Bian F, Mao X, Yang X, Jin S. Antidepressant drug, desipramine, alleviates allergic rhinitis by regulating Treg and Th17 cells. Int J Immunopathol Pharmacol 2013; 26:107-15. [PMID: 23527713 DOI: 10.1177/039463201302600110] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Allergic rhinitis (AR) is characterized by IgE-mediated immediate hypersensitivity and usually progresses to chronic nasal inflammation, with depression as one of its comorbidities. The importance of treating the depression in AR patients has been increasingly recognized. Desipramine is a representative of tricyclic-antidepressant agents. In the present study we investigate whether desipramine has therapeutic effects on AR inflammation. BALB/C mice were sensitized by intraperitoneal injection of ovalbumin (OVA), followed by repeated challenge with OVA intranasally. Desipramine was administered orally to treat the mice. The nasal symptoms (sneezing, nasal scratching etc.) of AR were evaluated to determine the severity of AR. Cytokines in the nasal lavage fluid (NALF), including interferon-gamma (IFN-gamma), interleukin 4 (IL-4) and serum OVA-specific immunoglobulin E (IgE) antibody were measured by ELISA. The regulatory T cells (Treg) and T helper cells 17 (Th17) were quantified by flow cytometric analysis. As a result, the repeated oral administration of desipramine attenuated the nasal symptoms (sneezing and nasal rubbing) in AR mice. Desipramine also suppressed the serum OVA-specific IgE and IL-4 levels, but had no effect on IFN-gamma level. Moreover, desipramine treatment up regulated CD4+CD25+Foxp3+ Treg cells, which were found down-regulated in established AR mice. Meanwhile, desipramine administration attenuated CD4+IL-17+ Th17 cells, which were significantly increased in AR mice. These results suggest that the antidepressant drug, desipramine, also has anti-allergic action, which was possibly achieved by reducing allergen-specific IgE and Th2 cytokine production and maintaining a balance between Treg and Th17 cells. Thus, this study provide the first evidence that desipramine may be utilized to treat allergic diseases, especially for those allergic patients with depression or depression patients with allergy.
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Affiliation(s)
- Y Zhang
- Department of Pharmacology, Huazhong University of Science and Technology, China
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Wang J, Chen Q, Zhou J, Wen J, Bian F, Li G, Mu X, Han Y, Xia G, Zhang M. Specific protein kinase C isoforms α and βI are involved in follicle-stimulating hormone-induced mouse follicle-enclosed oocytes meiotic resumption. PLoS One 2012; 7:e45043. [PMID: 23028752 PMCID: PMC3445551 DOI: 10.1371/journal.pone.0045043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 08/11/2012] [Indexed: 11/19/2022] Open
Abstract
Protein kinase C (PKC) is involved in gonadotrophin-induced oocyte maturation. In the present study, we investigated the role of specific PKC isoforms in the process of follicle-stimulating hormone (FSH)-induced oocyte meiotic resumption. Small antral follicles (200–300 µm in diameter) were isolated from immature mice and cultured in vitro. FSH significantly induced follicle-enclosed oocytes (FEOs) meiotic resumption after 8 hr culture. However, the induced effect of FSH was dose-dependently inhibited by the specific PKC α and βI inhibitor Gö6976, and 100 nM Gö6976 completely blocked FSH function in oocyte meiotic resumption. Furthermore, FSH dramatically induced the expression of transcripts encoding epidermal growth factor (EGF)-like growth factors Areg, Btc, and Ereg mRNA levels, and up-regulated tyrosine phosphorylation level of EGF receptor (EGFR) in granulosa cells. Blocking the function of EGFR by AG1478 eliminated the effect of FSH-induced FEOs meiotic resumption, suggesting that FSH induced oocyte maturation through the activation of EGFR. FSH-induced phosphorylation of EGFR could also be inhibited by Gö6976. Next, we examined the effect of FSH on the expression and phosphorylation PKC α and βI. FSH induced the expression of PKC α at mRNA and protein level, and also up-regulated its phosphorylation level in granulosa cells after 8 hr culture. However, FSH had no effect on the expression of PKC βI but down-regulated its phosphorylation level. In conclusion, FSH-induced activation of PKC α alone, or together with the inactivation of PKC βI in granulosa cells, participates in mouse oocyte meiotic resumption, possibly by the activation of EGFR signaling pathway.
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Affiliation(s)
- Jianwei Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Qian Chen
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Jinlian Zhou
- Department of Pathology, 306 Hospital of PLA, Beijing, People’s Republic of China
| | - Jing Wen
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Fenghua Bian
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Ge Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Xinyi Mu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Yingying Han
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Guoliang Xia
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
| | - Meijia Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People’s Republic of China
- * E-mail:
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Guo M, Zhang H, Bian F, Li G, Mu X, Wen J, Mao G, Teng Z, Xia G, Zhang M. P4 down-regulates Jagged2 and Notch1 expression during primordial folliculogenesis. Front Biosci (Elite Ed) 2012; 4:2631-44. [PMID: 22652674 DOI: 10.2741/e579] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nest breakdown and primordial folliculogenesis of the mouse ovary can be inhibited by progesterone (P4) and Notch signaling inhibitors. However, the relationship between these two signals during this process remains unknown. In the present study, transcript levels of Jagged2, Notch1, and their target, Hey2, increased markedly in ovaries during the beginning stage of folliculogenesis (17.5 days post coitus (dpc) to birth). Maternal P4 levels decreased simultaneously. We found that maternal midpregnancy P4 levels significantly inhibited Jagged2, Notch1, and Hey2 expression, and follicle formation in vitro. Maintaining high maternal P4 levels by daily injection also significantly suppressed the expression of Jagged2, Notch1, and Hey2, and follicle formation during late pregnancy. Based on immunohistochemistry, Jagged2 was localized in oocytes and Notch1 was strongly stained in pre-granulosa cells in 19.5 dpc ovaries. Suppression of their function by antibody addition and RNAi markedly inhibited nest breakdown and follicle formation. Taken together, these results demonstrate that maternal P4 levels during midpregnancy can inhibit the expression of Jagged2 and Notch1, which are involved in primordial folliculogenesis, in the mouse fetal ovary.
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Affiliation(s)
- Meng Guo
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, PR China
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Bian F, Mao G, Guo M, Mao G, Wang J, Li J, Han Y, Chen X, Zhang M, Xia G. Gradients of natriuretic peptide precursor A (NPPA) in oviduct and of natriuretic peptide receptor 1 (NPR1) in spermatozoon are involved in mouse sperm chemotaxis and fertilization. J Cell Physiol 2012; 227:2230-9. [DOI: 10.1002/jcp.22962] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Han Y, Yan J, Zhou J, Teng Z, Bian F, Guo M, Mao G, Li J, Wang J, Zhang M, Xia G. Acute fasting decreases the expression of GLUT1 and glucose utilisation involved in mouse oocyte maturation and cumulus cell expansion. Reprod Fertil Dev 2012; 24:733-42. [DOI: 10.1071/rd10301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Accepted: 07/20/2011] [Indexed: 01/13/2023] Open
Abstract
Acute fasting impairs meiotic resumption and glucose consumption in mouse cumulus cell and oocyte complexes (COCs). This study examines the effects of acute fasting on the regulation of glucose transporter 1 (GLUT1) expression and glucose consumption in oocyte maturation. Our results indicate that the restriction of glucose utilisation by 2-deoxyglucose (2-DG) mimicked the inhibitory effects of acute fasting on oocyte meiotic resumption and cumulus cell expansion, effects that were rescued by high glucose concentrations in the culture medium. GLUT1 protein levels were higher in cumulus cells compared with oocytes, and GLUT1 expression in COCs increased with FSH treatment in vitro. However, under acute fasting conditions, GLUT1 expression in COCs decreased and the response to FSH disappeared. Exposure to high glucose conditions (27.5 mM and 55 mM), significantly increased both glucose consumption and GLUT1 levels in COCs. Inhibition of GLUT1 function using an anti-GLUT1 antibody significantly inhibited FSH-induced oocyte meiotic resumption. Taken together, these results suggest that acute fasting decreases GLUT1 expression and glucose utilisation, inhibiting the processes of oocyte maturation and cumulus cell expansion.
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Bian F, Tian YC, Wang R, Yang HX, Xu H, Meng S, Zhao J. Ultrasmall silver nanopores fabricated by femtosecond laser pulses. Nano Lett 2011; 11:3251-3257. [PMID: 21718020 DOI: 10.1021/nl201529d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Ultrasmall nanopores in silver thin films with a diameter of about 2 nm have been fabricated using femtosecond laser ablation in liquid. Ultrafast laser pulse ablation generates highly nonequilibrium excitated states, from which silver thin films emerge and progressively grow with the assistance of capping agent molecules. During this growth process, capping agent molecules are enclaved within the film, leaving individual ultrasmall pores in the thin film. Our first-principles calculations show that the pore size is critically determined by the dimension of the confined molecules. Our approach advances the capability of optical methods in making nanoscale structures with potential applications in areas such as near-field aperture probes, imaging masks, magnetic plasmonic resonances, and biosensing with individual nanopores.
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Affiliation(s)
- F Bian
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Abstract
We report a 19-year-old man with thrombosis of the portal vein associated with a nephrotic syndrome. A computed tomography showed obstruction of the portal vein with prominent collaterals and cavernous transformation. This case is noteworthy as a report of nephrotic syndrome accompanied by extensive abdominal venous thrombosis and was cured successfully.
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Affiliation(s)
- F Bian
- Department of Nephrology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Ge QM, Du SC, Bian F, Lin N, Su Q. Effects of lipopolysaccharides on TLR4 expression in INS-1 rat insulinoma cells. Cell Mol Biol (Noisy-le-grand) 2011; 57 Suppl:OL1513-OL1519. [PMID: 21699766] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 06/09/2011] [Indexed: 05/31/2023]
Abstract
The aim of the study was to obtain insight into the mechanism of sepsis-induced hyperglycemia, to explore the expression of Toll-like receptor 4 (TLR4) on INS-1 cells, the effects of lipopolysaccharide (LPS) on TLR4 expression and cell viability. The expression of TLR4 on INS-1 was detected by both RT-PCR and Western blot assays. After being intervened by LPS of various concentrations (0.01, 0.1, 1, 5, 10mg/L) for a certain time, the effects of LPS on TLR4 expression and cell viability were detected by quantitative real-time reverse-transcriptase polymerase chain reaction, western blotting and CCK-8 assay. Then INS-1 cells were stimulated by LPS (0.1, 1mg/L) together with anti-TLR4 antibody, cell viability and TLR4 expression were detected again. TLR4 expressed in INS-1 cell line. Its expression was up-regulated by the stimulation of LPS higher than 0.1mg/L for 12h (P<0.05). However, there was a little down-regulation of TLR4 between the LPS treated groups and controls with further LPS treatment for 24 and 48 h (P>0.05). In certain concentrations(0.1~10mg/L), viability of INS-1 cells was inhibited by LPS in a dose dependent manner (P<0.05) These effects could be blocked by anti-TLR4 antibody partially. These results suggest that LPS may act directly on the pancreatic β cells via TLR4 on the β-cell membrane. LPS increased TLR4 expression in the early short period of time and caused injury to INS-1 cells after a certain time. It could be one of the mechanisms that hyperglycemia occurs in the early stage of sepsis.
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Affiliation(s)
- Q-M Ge
- Department of Emergency, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, No.1665 Kongjiang Road, Shanghai, China
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Qi H, Li DQ, Bian F, Chuang EY, Jones DB, Pflugfelder SC. Expression of glial cell-derived neurotrophic factor and its receptor in the stem-cell-containing human limbal epithelium. Br J Ophthalmol 2008; 92:1269-74. [PMID: 18723744 DOI: 10.1136/bjo.2007.132431] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [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] [Indexed: 11/03/2022]
Abstract
AIM To evaluate the expression pattern of glial cell line-derived neurotrophic factor (GDNF) with its receptors GDNF family receptor alpha-1 (GFR alpha-1) and Ret in the human corneal and limbal tissues, as well as in the primary human limbal epithelial cultures (PHLEC). METHODS Expression of GDNF and its receptors, and the co-localisation with stem cell associated and differentiation markers were evaluated by immunofluorescent staining, western blot analysis and real-time PCR in the fresh human corneoscleral tissues, as well as in the PHLEC. Single cell colony-forming and wound-healing assays were also evaluated in PHLEC. RESULTS GDNF and GFR alpha-1 were found to be expressed by a subset of basal cells and co-localised with ATP-binding cassette, subfamily G (WHITE), member 2 (ABCG2) and p63, but not with cytokeratin 3 in the human limbal basal epithelium. In PHLEC, they were expressed by a small population of cells in the less differentiated stage. The GDNF and GFR alpha-1-positive subpopulations were enriched for the expression of ABCG2 and p63 (p<0.01). Recombinant human GDNF promoted the proliferation and wound healing of epithelial cells in the PHLEC. In contrast, Ret was abundantly located in the human corneal epithelium except for the basal cells of the limbal epithelium. CONCLUSION These findings indicate that GDNF and GFR alpha-1 may represent a property for the phenotype of human corneal epithelial precursor cells. GDNF may signal independently of Ret through GFR alpha-1 in the stem cell-containing limbal epithelium.
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Affiliation(s)
- H Qi
- Ocular Surface Center, Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA
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Abstract
Protein misfolding and aberrant polymerization are salient features of virtually all central neurodegenerative disorders, including Alzheimer's disease (AD), Parkinson's disease, triplet repeat disorders, tauopathies, and prion diseases. In many instances, a single amino acid change can predispose to disease by increasing the production and/or changing the biophysical properties of a specific protein. Possible pathogenic similarities among the cerebral proteopathies suggest that therapeutic agents interfering with the proteopathic cascade might be effective against a wide range of diseases. However, testing compounds preclinically will require disease-relevant animal models. Numerous transgenic mouse models of beta-amyloidosis, tauopathy, and other aspects of AD have now been produced, but none of the existing models fully recapitulates the pathology of AD. In an attempt to more faithfully replicate the human disease, we infused dilute AD-brain extracts into Tg2576 mice at 3-months of age (i.e. 5-6 months prior to the usual onset of beta-amyloid deposition). We found that intracerebral infusion of AD brain extracts results in: 1). Premature deposition of beta-amyloid in eight month-old, beta-amyloid precursor protein ( betaAPP)-transgenic mice (Kane et al., 2000); 2). augmented amyloid load in the injected hemisphere of 15 month-old transgenic mice; 3). evidence for the spread of pathology to other brain areas, possibly by neuronal transport mechanisms; and 4). tau hyperphosphorylation (but not neurofibrillary pathology) in axons passing through the injection site. The seeding of beta-amyloid in vivo by AD brain extracts suggests pathogenic similarities between beta-amyloidoses such as AD and other cerebral proteopathies such as the prionoses, and could provide a new model for studying the proteopathic cascade and its neuronal consequences in neurodegenerative diseases.
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Affiliation(s)
- L C Walker
- CNS Pharmacology, Pfizer Ann Arbor Laboratories, Ann Arbor, Michigan 48105, USA.
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Zhang X, Baader SL, Bian F, Müller W, Oberdick J. High level Purkinje cell specific expression of green fluorescent protein in transgenic mice. Histochem Cell Biol 2001; 115:455-64. [PMID: 11455445 DOI: 10.1007/s004180100283] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2001] [Indexed: 10/25/2022]
Abstract
The green fluorescent protein (GFP) has become a powerful tool in molecular and cell biology. It is a commonly used marker for cloning and transfection experiments as well as a useful label of living cells allowing continuous observation of developing structures. In order to unravel mechanisms of neuronal differentiation, we generated a transgenic mouse model which expresses GFPS65T,hu under the control of the Purkinje cell-specific promoter L7/pcp-2. Here, we show that GFPS65T,hu is highly expressed specifically in the cerebellum in whole mount preparations after the 2nd postnatal week. GFPS65T,hu can be detected exclusively in Purkinje cells of cerebellar slices. The fluorescence intensity of GFPS65T,hu should enable the characterization and recording of axons, dendrites, and spines protruding from these neuronal processes. The level of GFP expression can be quantified by western blotting which allows to analyze protein expression and L7/pcp-2 promoter regulation in vivo. The application of cellular and physiological techniques on L7GFP mice will provide a remarkable opportunity to investigate various aspects of neuronal development at the cellular and subcellular levels.
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Affiliation(s)
- X Zhang
- Department of Neuroscience, Neurobiotechnology Center, The Ohio State University, Columbus, Ohio, USA
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Callahan MJ, Lipinski WJ, Bian F, Durham RA, Pack A, Walker LC. Augmented senile plaque load in aged female beta-amyloid precursor protein-transgenic mice. Am J Pathol 2001; 158:1173-7. [PMID: 11238065 PMCID: PMC1850367 DOI: 10.1016/s0002-9440(10)64064-3] [Citation(s) in RCA: 222] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/07/2000] [Indexed: 10/18/2022]
Abstract
Transgenic mice (Tg2576) overexpressing human beta-amyloid precursor protein with the Swedish mutation (APP695SWE) develop Alzheimer's disease-like amyloid beta protein (Abeta) deposits by 8 to 10 months of age. These mice show elevated levels of Abeta40 and Abeta42, as well as an age-related increase in diffuse and compact senile plaques in the brain. Senile plaque load was quantitated in the hippocampus and neocortex of 8- to 19-month-old male and female Tg2576 mice. In all mice, plaque burden increased markedly after the age of 12 months. At 15 and 19 months of age, senile plaque load was significantly greater in females than in males; in 91 mice studied at 15 months of age, the area occupied by plaques in female Tg2576 mice was nearly three times that of males. By enzyme-linked immunosorbent assay, female mice also had more Abeta40 and Abeta42 in the brain than did males, although this difference was less pronounced than the difference in histological plaque load. These data show that senescent female Tg2576 mice deposit more amyloid in the brain than do male mice, and may provide an animal model in which the influence of sex differences on cerebral amyloid pathology can be evaluated.
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Affiliation(s)
- M J Callahan
- Neuroscience Therapeutics, Pfizer Global Research and Development, Ann Arbor Laboratories, 2800 Plymouth Rd., Ann Arbor, MI 48105, USA.
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Kane MD, Lipinski WJ, Callahan MJ, Bian F, Durham RA, Schwarz RD, Roher AE, Walker LC. Evidence for seeding of beta -amyloid by intracerebral infusion of Alzheimer brain extracts in beta -amyloid precursor protein-transgenic mice. J Neurosci 2000; 20:3606-11. [PMID: 10804202 PMCID: PMC6772682] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Many neurodegenerative diseases are associated with the abnormal sequestration of disease-specific proteins in the brain, but the events that initiate this process remain unclear. To determine whether the deposition of the beta-amyloid peptide (Abeta), a key pathological feature of Alzheimer's disease (AD), can be induced in vivo, we infused dilute supernatants of autopsy-derived neocortical homogenates from Alzheimer's patients unilaterally into the hippocampus and neocortex of 3-month-old beta-amyloid precursor protein (betaAPP)-transgenic mice. Up to 4 weeks after the infusion there was no Abeta-deposition in the brain; however, after 5 months, the AD-tissue-injected hemisphere of the transgenic mice had developed profuse Abeta-immunoreactive senile plaques and vascular deposits, some of which were birefringent with Congo Red. There was limited deposition of diffuse Abeta also in the brains of betaAPP-transgenic mice infused with tissue from an age-matched, non-AD brain with mild beta-amyloidosis, but none in mice receiving extract from a young control case. Abeta deposits also were not found in either vehicle-injected or uninjected transgenic mice or in any nontransgenic mice. The results show that cerebral beta-amyloid can be seeded in vivo by a single inoculation of dilute AD brain extract, demonstrating a key pathogenic commonality between beta-amyloidosis and other neurodegenerative diseases involving abnormal protein polymerization. The paradigm can be used to clarify the conditions that initiate in vivo beta-amyloidogenesis in the brain and may yield a more authentic animal model of Alzheimer's disease and other neurodegenerative disorders.
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Affiliation(s)
- M D Kane
- Neuroscience Therapeutics, Parke-Davis Research, Division of Warner-Lambert, Ann Arbor, Michigan 48105, USA
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Bian F, Zhao P, Zhang Z. [Clinical study on treatment of incipient diabetic nephropathy by integrated traditional Chinese and Western medicine]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2000; 20:335-7. [PMID: 11789241] [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: 02/23/2023]
Abstract
OBJECTIVE To explore the curative effect of integrated traditional Chinese and western medicine (TCM-WM) on incipient diabetic nephropathy (DN). METHODS One hundred patients with incipient DN were randomly divided into two groups, the treatment group (50 cases) was treated with TCM-WM therapy, which was carried out by using Jiangtang Janshenling (JTJSL) capsule, a Chinese preparation for supplementing Qi and nourishing Yin, on the basis of controlling blood glucose with western medicine effectively. The 50 patients in the control group were treated with western medicine alone. The course of treatment was three months. Changes of symptoms, signs, and related laboratory parameters were observed before and after treatment. RESULTS The total effective rate in the treatment group was 90% while that in the control group was 58%, the difference between two groups was significant (P < 0.05). The related parameters including 24 hours urinary albumin excretion, blood sugar, microalbuminuria, blood and urine beta 2-microglobulin, blood lipids, and hemorrheology levels were all improved after treatment in the treatment group (P < 0.05 or P < 0.01). CONCLUSION The curative effect of TCM-WM was better than that of western medicine alone in treating incipient DN.
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Affiliation(s)
- F Bian
- Department of Endocrinology, People's Hospital of Cangzhou, Hebei 061000
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De Zeeuw CI, Hansel C, Bian F, Koekkoek SK, van Alphen AM, Linden DJ, Oberdick J. Expression of a protein kinase C inhibitor in Purkinje cells blocks cerebellar LTD and adaptation of the vestibulo-ocular reflex. Neuron 1998; 20:495-508. [PMID: 9539124 DOI: 10.1016/s0896-6273(00)80990-3] [Citation(s) in RCA: 343] [Impact Index Per Article: 13.2] [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] [Indexed: 02/07/2023]
Abstract
Cerebellar long-term depression (LTD) is a model system for neuronal information storage that has an absolute requirement for activation of protein kinase C (PKC). It has been claimed to underlie several forms of cerebellar motor learning. Previous studies using various knockout mice (mGluR1, GluRdelta2, glial fibrillary acidic protein) have supported this claim; however, this work has suffered from the limitations that the knockout technique lacks anatomical specificity and that functional compensation can occur via similar gene family members. To overcome these limitations, a transgenic mouse (called L7-PKCI) has been produced in which the pseudosubstrate PKC inhibitor, PKC[19-31], was selectively expressed in Purkinje cells under the control of the pcp-2(L7) gene promoter. Cultured Purkinje cells prepared from heterozygous or homozygous L7-PKCI embryos showed a complete blockade of LTD induction. In addition, the compensatory eye movements of L7-PKCI mice were recorded during vestibular and visual stimulation. Whereas the absolute gain, phase, and latency values of the vestibulo-ocular reflex and optokinetic reflex of the L7-PKCI mice were normal, their ability to adapt their vestibulo-ocular reflex gain during visuo-vestibular training was absent. These data strongly support the hypothesis that activation of PKC in the Purkinje cell is necessary for cerebellar LTD induction, and that cerebellar LTD is required for a particular form of motor learning, adaptation of the vestibulo-ocular reflex.
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Affiliation(s)
- C I De Zeeuw
- Department of Anatomy, Erasmus University Rotterdam, The Netherlands
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Bian F, Logan JR, Bian Y. Intergenerational relations in urban China: proximity, contact, and help to parents. Demography 1998; 35:115-24. [PMID: 9512914] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although most older Chinese parents live with an adult son or daughter, most adult offspring do not live with parents. We examine the relations of these noncoresident offspring with parents in terms of proximity, frequency of contact, and exchange of help. Based on a 1993 random sample survey conducted in two major Chinese cities, we find that although rates of coresidence are high, noncoresident sons and daughters live close to parents, have frequent contact with their parents, and provide regular help to parents. Relationships with noncoresident sons and daughters are unaffected by whether parents coreside with another child. There is some evidence of closer relationships with sons than with daughters, but parents without a son receive as much help from all children as do parents with sons. The effects of these and other predictors are estimated in multivariate analyses, and results are interpreted in terms of the persistence or change of traditional family norms.
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Affiliation(s)
- F Bian
- Department of Sociology, SUNY at Albany, Social Science 12222, USA
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Bian F, Chu T, Schilling K, Oberdick J. Differential mRNA transport and the regulation of protein synthesis: selective sensitivity of Purkinje cell dendritic mRNAs to translational inhibition. Mol Cell Neurosci 1996; 7:116-33. [PMID: 8731480 DOI: 10.1006/mcne.1996.0009] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Although the majority of mRNAs expressed in neurons are confined to the perikaryon, a growing number appear to be transported into dendrites. It is likely that this allows for the local regulation of protein synthesis within discrete subcellular compartments. Here, three different subcellular distribution patterns are demonstrated for four mRNAs that encode proteins highly expressed in Purkinje cells and their dendrites; mRNAs are found in the perikaryon only, perikaryon and proximal dendrite, or perikaryon and proximal plus distal dendrites. Further, it is shown that transport of an mRNA into the dendrites increases its sensitivity to translational inhibition by diphtheria toxin. These data suggest a simple model whereby the transport machinery can regulate the translation of selected mRNAs. Thus, environmental signals that generally affect translational efficiency in concert with the selectivity provided by the transport machinery could provide a means to locally regulate the synthesis of a restricted pool of proteins.
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Affiliation(s)
- F Bian
- Ohio State Biochemistry Program, Ohio State University, Columbus 43210, USA
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Smeyne RJ, Chu T, Lewin A, Bian F, Sanlioglu S, S-Crisman S, Kunsch C, Lira SA, Oberdick J. Local control of granule cell generation by cerebellar Purkinje cells. Mol Cell Neurosci 1995; 6:230-51. [PMID: 7496629 DOI: 10.1006/mcne.1995.1019] [Citation(s) in RCA: 169] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Cerebellar Purkinje cells were ablated by the specific expression of diphtheria toxin in these cells in transgenic mice. Purkinje cell degeneration during early postnatal development shows a zonally restricted pattern which has been exploited in order to look for local secondary effects. The most obvious early effect is the alignment of gaps in the Purkinje cell layer with dramatically thinned zones in the overlying EGL, the germinal layer from which granule cells are generated. Within these EGL zones in the transgenic mutant, markers that distinguish matrix from mantle cells demonstrate a preferential loss of the proliferative cells. Comparison of BrdU incorporation in the mutant vs wild-type confirms the reduction in proliferation. In the mutant, in situ labeling of DNA fragmentation associated with apoptotic cell death shows abundant labeling of granule cells that have exited the EGL, but not of progenitor cells in the EGL. Thus, although a trophic role for Purkinje cells has been well documented, these observations further suggest a mitogenic role which can be exerted locally.
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Affiliation(s)
- R J Smeyne
- Department of Central Nervous System Research, Hoffmann-La Roche, Nutley, New Jersey 07110, USA
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