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Jin X, Liu L, Liu D, Wu J, Wang C, Wang S, Wang F, Yu G, Jin X, Xue YW, Jiang D, Ni Y, Yang X, Wang MS, Wang ZW, Orlov YL, Jia W, Melino G, Liu JB, Chen WL. Unveiling the methionine cycle: a key metabolic signature and NR4A2 as a methionine-responsive oncogene in esophageal squamous cell carcinoma. Cell Death Differ 2024:10.1038/s41418-024-01285-7. [PMID: 38570607 DOI: 10.1038/s41418-024-01285-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/05/2024] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a deadly malignancy with notable metabolic reprogramming, yet the pivotal metabolic feature driving ESCC progression remains elusive. Here, we show that methionine cycle exhibits robust activation in ESCC and is reversely associated with patient survival. ESCC cells readily harness exogenous methionine to generate S-adenosyl-methionine (SAM), thus promoting cell proliferation. Mechanistically, methionine augments METTL3-mediated RNA m6A methylation through SAM and revises gene expression. Integrative omics analysis highlights the potent influence of methionine/SAM on NR4A2 expression in a tumor-specific manner, mediated by the IGF2BP2-dependent stabilization of methylated NR4A2 mRNA. We demonstrate that NR4A2 facilitates ESCC growth and negatively impacts patient survival. We further identify celecoxib as an effective inhibitor of NR4A2, offering promise as a new anti-ESCC agent. In summary, our findings underscore the active methionine cycle as a critical metabolic characteristic in ESCC, and pinpoint NR4A2 as a novel methionine-responsive oncogene, thereby presenting a compelling target potentially superior to methionine restriction.
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Affiliation(s)
- Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Lei Liu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong, 226300, China
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Jia Wu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Congcong Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Siliang Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Fengying Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China
| | - Guanzhen Yu
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
- Laboratory of Digital Health and Artificial Intelligence, Zhejiang Digital Content Research Institute, Shaoxing, 312000, China
| | - Xiaoxia Jin
- Department of Pathology, The Affiliated Tumor Hospital of Nantong University, Nantong, 226300, China
| | - Yu-Wen Xue
- Pathology department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Dan Jiang
- Pathology department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Yan Ni
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310029, China
| | - Xi Yang
- Department of Oncology, Shanxi Provincial Hospital of Traditional Chinese Medicine, Shanxi, 030001, China
| | - Ming-Song Wang
- Department of Thoracic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Zhi-Wei Wang
- Department of Breast, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yuriy L Orlov
- The Digital Health Institute, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, 119991, Russia
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia
- Life Sciences Department, Novosibirsk State University, Novosibirsk, 630090, Russia
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, 690922, Russia
- Agrarian and Technological Institute, Peoples' Friendship University of Russia, Moscow, 117198, Russia
| | - Wei Jia
- Department of Pharmacology and Pharmacy, Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Gerry Melino
- Department of Experimental Medicine, University of Rome "Tor Vergata", 00133, Rome, Italy
| | - Ji-Bin Liu
- Cancer Institute, The Affiliated Tumor Hospital of Nantong University, Nantong, 226361, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, 200032, China.
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Okon IB, Onate CA, Horchani R, Popoola OO, Omugbe E, William ES, Okorie US, Inyang EP, Isonguyo CN, Udoh ME, Antia AD, Chen WL, Eyube ES, Araujo JP, Ikot AN. Thermomagnetic properties and its effects on Fisher entropy with Schioberg plus Manning-Rosen potential (SPMRP) using Nikiforov-Uvarov functional analysis (NUFA) and supersymmetric quantum mechanics (SUSYQM) methods. Sci Rep 2023; 13:8193. [PMID: 37210425 DOI: 10.1038/s41598-023-34521-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023] Open
Abstract
Thermomagnetic properties, and its effects on Fisher information entropy with Schioberg plus Manning-Rosen potential are studied using NUFA and SUSYQM methods in the presence of the Greene-Aldrich approximation scheme to the centrifugal term. The wave function obtained was used to study Fisher information both in position and momentum spaces for different quantum states by the gamma function and digamma polynomials. The energy equation obtained in a closed form was used to deduce numerical energy spectra, partition function, and other thermomagnetic properties. The results show that with an application of AB and magnetic fields, the numerical energy eigenvalues for different magnetic quantum spins decrease as the quantum state increases and completely removes the degeneracy of the energy spectra. Also, the numerical computation of Fisher information satisfies Fisher information inequality products, indicating that the particles are more localized in the presence of external fields than in their absence, and the trend shows complete localization of quantum mechanical particles in all quantum states. Our potential reduces to Schioberg and Manning-Rosen potentials as special cases. Our potential reduces to Schioberg and Manning-Rosen potentials as special cases. The energy equations obtained from the NUFA and SUSYQM were the same, demonstrating a high level of mathematical precision.
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Affiliation(s)
- I B Okon
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - C A Onate
- Department of Physics, Kogi State University, Anyigba, Nigeria
| | - R Horchani
- Department of Physics, College of Science, Sultan Qaboos University, Muscat, Sultanate of Oman.
| | - O O Popoola
- Department of Physics, University of Ibadan, Ibadan, Nigeria
| | - E Omugbe
- Department of Physics, University of Agriculture and Environmental Sciences, Umuagwo, P.M.B. 1038, Imo State, Nigeria
| | - E S William
- Department of Physics, Federal University of Technology, Ikot Abasi, Nigeria
| | - U S Okorie
- Department of Physics, Akwa Ibom State University, Mkpat-Enin, Nigeria
| | - E P Inyang
- Department of Physics, National Open University of Nigeria, Jabi-Abuja, Nigeria
| | - C N Isonguyo
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - M E Udoh
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - A D Antia
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - W L Chen
- School of Intelligent Science and Information Engineering, Xi'an Peihua University, Xi'an, 710125, China
| | - E S Eyube
- Department of Physics, Faculty of Physical Sciences, Modibbo Adama University, P.M.B. 2076, Yola, Adamawa State, Nigeria
| | - J P Araujo
- Department of Mathematics, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, Juiz de Fora, Brazil
| | - A N Ikot
- Theoretical Physics Group, Department of Physics, University of Port Harcourt, Port Harcourt, Nigeria
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Liu D, Dong C, Wang F, Liu W, Jin X, Qi SL, Liu L, Jin Q, Wang S, Wu J, Wang C, Yang J, Deng H, Cai Y, Yang L, Qin J, Zhang C, Yang X, Wang MS, Yu G, Xue YW, Wang Z, Ge GB, Xu Z, Chen WL. Active post-transcriptional regulation and ACLY-mediated acetyl-CoA synthesis as a pivotal target of Shuang-Huang-Sheng-Bai formula for lung adenocarcinoma treatment. Phytomedicine 2023; 113:154732. [PMID: 36933457 DOI: 10.1016/j.phymed.2023.154732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND New therapeutic approaches are required to improve the outcomes of lung cancer (LC), a leading cause of cancer-related deaths worldwide. Chinese herbal medicine formulae widely used in China provide a unique opportunity for improving LC treatment, and the Shuang-Huang-Sheng-Bai (SHSB) formula is a typical example. However, the underlying mechanisms of action remains unclear. PURPOSE This study aimed to confirm the efficacy of SHSB against lung adenocarcinoma (LUAD), which is a major histological type of LC, unveil the downstream targets of this formula, and assess the clinical relevance and biological roles of the newly identified target. METHODS An experimental metastasis mouse model and a subcutaneous xenograft mouse model were used to evaluate the anti-cancer activity of SHSB. Multi-omics profiling of subcutaneous tumors and metabolomic profiling of sera were performed to identify downstream targets, especially the metabolic targets of SHSB. A clinical trial was conducted to verify the newly identified metabolic targets in patients. Next, the metabolites and enzymes engaged in the metabolic pathway targeted by SHSB were measured in clinical samples. Finally, routine molecular experiments were performed to decipher the biological functions of the metabolic pathways targeted by SHSB. RESULTS Oral SHSB administration showed overt anti-LUAD efficacy as revealed by the extended overall survival of the metastasis model and impaired growth of implanted tumors in the subcutaneous xenograft model. Mechanistically, SHSB administration altered protein expression in the post-transcriptional layer and modified the metabolome of LUAD xenografts. Integrative analysis demonstrated that SHSB markedly inhibited acetyl-CoA synthesis in tumors by post-transcriptionally downregulating ATP-citrate lyase (ACLY). Consistently, our clinical trial showed that oral SHSB administration declined serum acetyl-CoA levels of patients with LC. Moreover, acetyl-CoA synthesis and ACLY expression were both augmented in clinical LUAD tissues of patients, and high intratumoral ACLY expression predicted a detrimental prognosis. Finally, we showed that ACLY-mediated acetyl-CoA synthesis is essential for LUAD cell growth by promoting G1/S transition and DNA replication. CONCLUSION Limited downstream targets of SHSB for LC treatment have been reported in previous hypothesis-driven studies. In this study, we conducted a comprehensive multi-omics investigation and demonstrated that SHSB exerted its anti-LUAD efficacy by actively and post-transcriptionally modulating protein expression and particularly restraining ACLY-mediated acetyl-CoA synthesis.
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Affiliation(s)
- Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Changsheng Dong
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Fengying Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Wei Liu
- Key Laboratory of Liver and Kidney Diseases (Ministry of Education), Institute of Liver Diseases, Shanghai 200032, China; Key Laboratory of Traditional Chinese Clinical Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Sheng-Lan Qi
- Key Laboratory of Liver and Kidney Diseases (Ministry of Education), Institute of Liver Diseases, Shanghai 200032, China; Key Laboratory of Traditional Chinese Clinical Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lei Liu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226300, China
| | - Qiang Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Siliang Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Jia Wu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Congcong Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Jing Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Haibin Deng
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yuejiao Cai
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lu Yang
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jingru Qin
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Chengcheng Zhang
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xi Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China
| | - Ming-Song Wang
- Department of Thoracic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Guanzhen Yu
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Laboratory of Digital Health and Artificial Intelligence, Zhejiang Digital Content Research Institute, Shaoxing 312000, China
| | - Yu-Wen Xue
- Pathology department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Zhongqi Wang
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guang-Bo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Zhenye Xu
- Department of Medical Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai 200032, China.
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Huang MQ, Ge F, Hou XC, Chen WL. [The common morphology and clinical significance of the axillary arch]. Zhonghua Wai Ke Za Zhi 2023; 61:168-172. [PMID: 36720627 DOI: 10.3760/cma.j.cn112139-20221017-00446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Axillary arch is the most common type of axillary muscle fiber variation, with about 10.8% incidence in the Chinese population. Its natural forms are varied and fluid, with different starting points and terminations, and clinicians frequently lack recognition. Under commonly applicated sentinel lymph node biopsy, the axillary arch has been endowed with more clinical significance. The fabric of axillary arch will not only block lymphatic drainage in axilla and unclear anatomical level of axillary dissection, but also compress the axillary neurovascular bundle, causing upper limb venous thrombosis, lymphedema and nerve entrapment. The intumescent axillary arch may also show abnormal axillary bulge. In addition to finding axillary arch during cadaveric study and operation, several of imaging methods availably diagnose axillary arch preoperative, which can create new way for detection of axillary arch and extension of the surgical plan of sentinel lymph node biopsy. Although embryology and comparative anatomy have been used to explain the origin of the axillary arch, most of the ideas are still hypotheses and need further study.
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Affiliation(s)
- M Q Huang
- Third Department of Breast Surgery, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming 650118, China
| | - F Ge
- Department of Breast Surgery, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - X C Hou
- Third Department of Breast Surgery, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming 650118, China
| | - W L Chen
- Third Department of Breast Surgery, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming 650118, China
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Chen WL, Shi CJ, Xue JQ, Zhang CY, Hu YH, Sun JJ, Wang M, Huang XY, Tian Z. [Establishment of patient-derived salivary gland basal cell adenoma organoids]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:1141-1146. [PMID: 36379893 DOI: 10.3760/cma.j.cn112144-20220712-00379] [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: 06/16/2023]
Abstract
Objective: To establish an in vitro organoid model of human salivary gland basal cell adenoma (BCA). Methods: Fresh tumor sample from a 66-year-old female patient diagnosed with salivary gland BCA was collected from the Dpartment of Oral pathology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine in October 2021. And the organoid culture was performed in vitro in a culture medium based on solid droplets of matrix gel, and the growth of the organoid was observed by inverted microscopy. After 14 days, the organoid was fixed in 10% neutral formalin and made into paraffin blocks by agar pre-embedding paraffin embedding method, sectioned. HE staining, morphological observation and immunohistochemical staining of p63, Ki-67, cytokeratin14 (CK14), β-catenin, S-100 and calponin were used for organoids identification. Results: The established BCA organoids were lobulated nodular locally under light microscopy, with deposition of eosinophilic glass-like material around the nests of organoid cells, similar to the morphological architectures of the parental BCA. Immunohistochemistry showed that organoids expressed CK14, p63, and β-catenin in various degree, which was consistent with the immunophenotypic characteristics of the parental BCA tumor cells. Conclusions: An in vitro culture system of BCA organoids was preliminarily established which provides a new model for the study of the pathogenesis of salivary gland tumors.
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Affiliation(s)
- W L Chen
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - C J Shi
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - J Q Xue
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - C Y Zhang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Y H Hu
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - J J Sun
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - M Wang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - X Y Huang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Z Tian
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
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Liu L, Wu J, Shi M, Wang F, Lu H, Liu J, Chen W, Yu G, Liu D, Yang J, Luo Q, Ni Y, Jin X, Jin X, Chen WL. New Metabolic Alterations and A Predictive Marker Pipecolic Acid in Sera for Esophageal Squamous Cell Carcinoma. Genomics Proteomics Bioinformatics 2022; 20:670-687. [PMID: 35351627 PMCID: PMC9880896 DOI: 10.1016/j.gpb.2021.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 07/07/2021] [Accepted: 09/27/2021] [Indexed: 01/31/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a major histological subtype of esophageal cancer with a poor prognosis. Although several serum metabolomic investigations have been reported, ESCC tumor-associated metabolic alterations and predictive biomarkers in sera have not been defined. Here, we enrolled 34 treatment-naive patients with ESCC and collected their pre- and post-esophagectomy sera together with the sera from 34 healthy volunteers for a metabolomic survey. Our comprehensive analysis identified ESCC tumor-associated metabolic alterations as represented by a panel of 12 serum metabolites. Notably, postoperative abrosia and parenteral nutrition substantially perturbed the serum metabolome. Furthermore, we performed an examination using sera from carcinogen-induced mice at the dysplasia and ESCC stages and identified three ESCC tumor-associated metabolites conserved between mice and humans. Notably, among these metabolites, the level of pipecolic acid was observed to be progressively increased in mouse sera from dysplasia to cancerization, and it could be used to accurately discriminate between mice at the dysplasia stage and healthy control mice. Furthermore, this metabolite is essential for ESCC cells to restrain oxidative stress-induced DNA damage and cell proliferation arrest. Together, this study revealed a panel of 12 ESCC tumor-associated serum metabolites with potential for monitoring therapeutic efficacy and disease relapse, presented evidence for refining parenteral nutrition composition, and highlighted serum pipecolic acid as an attractive biomarker for predicting ESCC tumorigenesis.
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Affiliation(s)
- Lei Liu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Jia Wu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Minxin Shi
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Fengying Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Haimin Lu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Jibing Liu
- Department of Epidemiology, Tumor Institute, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Weiqin Chen
- Department of Clinical Laboratory, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guanzhen Yu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jing Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Qin Luo
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yan Ni
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310029, China
| | - Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China,Corresponding authors.
| | - Xiaoxia Jin
- Department of Pathology, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China,Corresponding authors.
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China,Corresponding authors.
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7
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Chen WL, Zhao L, Guo LJ, Liang CY, Chen JY, Chen WH. [Pneumatosis cystoides intestinalis in lung transplant recipients: three cases report and literature review]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:671-676. [PMID: 35768375 DOI: 10.3760/cma.j.cn112147-20220106-00022] [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: 06/15/2023]
Abstract
Objective: To report the clinical characteristics and treatment courses of pneumatosis cystoides intestinalis(PCI) after lung transplantation(LT). Methods: We included all cases of PCI after LT from March 2017 to June 2021 in China-Japan Friendship Hospital. In addition to our cases, we searched literatures published in Chinese and English languages using China National Knowledge Infrastructure (CNKI), Wanfang Data and PubMed/MEDLINE with the search terms"pneumatosis intestinalis"and"lung transplantation". The clinical characteristics and treatment courses of all cases were summarized and analyzed. Results: Three cases of PCI occurred after LT in this study, with an incidence of 0.804% (3/373). Thirteen related literatures were retrieved, with 51 cases enrolled. The median age of the 54 patients was 55.4 years (22-79 years), with 33 males and 21 females. 64.81% (35/54) of the 54 patients underwent LT for interstitial lung disease and 90.74% (49/54) underwent bilateral LT. Twenty-two cases(40.7%) were asymptomatic when PCI occurred. Thirty-eight cases (38/54,70.37%)had involvement of ascending colon, and 35 cases(35/54,64.81%)had involvement of transverse colon. Forty-three cases(43/54, 79.63%) were treated conservatively. The average interval between transplantation and PCI was 210 (5-2 495) days. Conclusion: PCI is a rare complication after lung transplantation, most often occurring in the colon. Most patients were asymptomatic and could improve by conservative treatments.
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Affiliation(s)
- W L Chen
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
| | - L Zhao
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
| | - L J Guo
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
| | - C Y Liang
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
| | - J Y Chen
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
| | - W H Chen
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029,China
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8
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Orlov YL, Chen WL, Sekacheva MI, Cai G, Li H. Editorial: High-Throughput Sequencing-Based Investigation of Chronic Disease Markers and Mechanisms. Front Genet 2022; 13:922206. [PMID: 35801080 PMCID: PMC9253685 DOI: 10.3389/fgene.2022.922206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yuriy L. Orlov
- I. M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Novosibirsk State University, Novosibirsk, Russia
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Agrarian and Technological Institute, Peoples’ Friendship University of Russia, Moscow, Russia
| | - Wen-Lian Chen
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Marina I. Sekacheva
- I. M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Guoshuai Cai
- Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
| | - Hua Li
- Bio-ID Center, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Hua Li,
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9
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Liu D, Jin X, Yu G, Wang M, Liu L, Zhang W, Wu J, Wang F, Yang J, Luo Q, Cai L, Yang X, Ke X, Qu Y, Xu Z, Jia L, Chen WL. Oleanolic acid blocks the purine salvage pathway for cancer therapy by inactivating SOD1 and stimulating lysosomal proteolysis. Mol Ther Oncolytics 2021; 23:107-123. [PMID: 34703880 PMCID: PMC8505360 DOI: 10.1016/j.omto.2021.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/24/2021] [Indexed: 12/28/2022]
Abstract
Metabolic reprogramming is a core hallmark of cancer and is key for tumorigenesis and tumor progression. Investigation of metabolic perturbation by anti-cancer compounds would allow a thorough understanding of the underlying mechanisms of these agents and identification of new anti-cancer targets. Here, we demonstrated that the administration of oleanolic acid (OA) rapidly altered cancer metabolism, particularly suppressing the purine salvage pathway (PSP). PSP restoration significantly opposed OA-induced DNA replication and cell proliferation arrest, underscoring the importance of this pathway for the anti-cancer activity of OA. Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and 5′-nucleotidase (5′-NT), two metabolic enzymes essential for PSP activity, were promptly degraded by OA via the lysosome pathway. Mechanistically, OA selectively targeted superoxide dismutase 1 (SOD1) and yielded reactive oxygen species (ROS) to activate the AMP-activated protein kinase (AMPK)/mammalian target of rapamycin complex 1 (mTORC1)/macroautophagy pathway, thus eliciting lysosomal degradation of HGPRT and 5′-NT. Furthermore, we found that the PSP was overactivated in human lung and breast cancers, with a negative correlation with patient survival. The results of this study elucidated a new anti-cancer mechanism of OA by restraining the PSP via the SOD1/ROS/AMPK/mTORC1/macroautophagy/lysosomal pathway. We also identified the PSP as a new target for cancer treatment and highlighted OA as a potential therapeutic agent for cancers with high PSP activity.
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Affiliation(s)
- Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guanzhen Yu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Mingsong Wang
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital of Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Lei Liu
- Department of Thoracic Surgery, the Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Wenjuan Zhang
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Jia Wu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Fengying Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jing Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Qin Luo
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lili Cai
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xi Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xisong Ke
- Center for Chemical Biology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yi Qu
- Center for Chemical Biology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhenye Xu
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lijun Jia
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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10
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Bai GQ, Chen WL, Huang XH, Zhao SJ, Zhao SP, Chen XJ, Chen SW, Yang H, Lu X, Liu GY, Chen QH, Zhang LA, Jin L. [Evaluation of the diagnosis and treatment of cesarean scar pregnancy induced in the second trimester: a national multicenter retrospective study]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:545-553. [PMID: 34420286 DOI: 10.3760/cma.j.cn112141-20210331-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the risk factors of adverse pregnancy outcomes for induced abortion of cesarean scar pregnancy in midtrimester. Methods: A national multicenter retrospective study was conducted. A total of 154 singletons pregnant women with cesarean scar pregnancy during the second trimester induced abortion by various reasons in 12 tertiary A hospitals were selected, their pregnant outcomes were observed and the risk factors of serious adverse outcomes were analyzed with univariate and multivariate logstic regression; the role of ultrasound and MRI in predicting placenta accreta and severe adverse outcomes was evaluated, the effectiveness of uterine artery embolization (UAE) in preventing hemorrhage in pregnant women with and without placenta accreta was compared. Results: Among 154 subjects, the rate of placenta accreta was 42.2% (65/154), the rate of postpartum hemorrhage≥1 000 ml was 39.0% (60/154), the rate of hysterectomy was 14.9% (23/154), the rate of uterine rupture was 0.6% (1/154). The risk factor of postpartum hemorrhage≥1 000 ml and hysterectomy was placenta accreta (P<0.01). For each increase in the number of parity, the risk of placenta accreta increased 2.385 times (95%CI: 1.046-5.439; P=0.039); and the risk of placenta accreta decreased with increasing ultrasound measurement of scar myometrium thickness (OR=0.033, 95%CI: 0.001-0.762; P=0.033). The amount of postpartum hemorrhage and hysterectomy rate in the group with placenta accreta diagnosed by ultrasound combined with MRI were not significantly different from those in the group with placenta accreta diagnosed by ultrasound only or MRI only (all P>0.05). For pregnant women with placenta accreta, there were no significant difference in the amount of bleeding and hysterectomy rate between the UAE group [median: 1 300 ml; 34% (16/47)] and the non-embolization group (all P>0.05); in pregnant women without placenta accreta, the amount of bleeding in the UAE group was lower than that in the non-embolization group (median: 100 vs 600 ml; P<0.01), but there was no significant difference in hysterectomy rate [2% (1/56) vs 9% (3/33); P>0.05]. Conclusions: (1) Placenta accreta is the only risk factor of postpartum hemorrhage≥1 000 ml with hysterectomy for induced abortion of cesarean scar pregnancy in midtrimester; multi-parity and ultrasound measurement of scar myometrium thickness are risk factors for placenta accreta. (2) The technique of using ultrasound and MRI in predicting placenta accreta of cesarean scar pregnancy needs to be improved. (3) It is necessary to discuss of UAE in preventing postpartum hemorrhage for induced abortion of cesarean scar pregnancy in midtrimester.
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Affiliation(s)
- G Q Bai
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - W L Chen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X H Huang
- Department of Obstetrics and Gynecology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - S J Zhao
- Department of Gynecology, Wuxi Maternal and Child Health Hospital, Nanjing Medical University, Wuxi 214001, China
| | - S P Zhao
- Department of Gynecology, Qingdao Women and Children's Hospital, Qingdao University,Qingdao 266034, China
| | - X J Chen
- Department of Gynecology, Fujian Provincial Maternity and Children's Hospital, Fuzhou 350000, China
| | - S W Chen
- Department of Family Planning, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - H Yang
- Department of Family Planning, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300052, China
| | - X Lu
- Department of Obstetrics and Gynecology, the Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, China
| | - G Y Liu
- Department of Obstetrics and Gynecology, Bejing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Q H Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xiamen University, Xiamen 361003, Chian
| | - L A Zhang
- Department of Family Planning, Children's Hospital of Shanxi, Women Health Center of Shanxi, Taiyuan 030013, China
| | - L Jin
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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11
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Zhou Y, Zhang SH, Zhao XX, Chen WL, Lei Q, He BW, Huang WX, Wu D, Chen J. [Evaluation on applicationof virtual reality technology in dental implant process training]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:799-804. [PMID: 34404147 DOI: 10.3760/cma.j.cn112144-20201210-00608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application effect and evaluation of virtual reality technology in oral implant therapy training. Methods: In November 2018, one adult patient (female, 36 years old) with missing right mandibular first molar was treated in the Department of Implantology, School and Hospital of Stomatology, Fujian Medical University. The three-dimensional virtual models of mandible and implant surgery tools were established, and the virtual reality software (Unity 3D 5.5.1) was imported. Combined with the virtual reality head mounted display, a virtual reality training system simulating the dental implant treatment process was independently developed. Ten refresher doctors and 20 graduate students in Department of Implantology, School and Hospital of Stomatology, Fujian Medical University from September 2018 to December 2019 were recruited as the experimental objects (no clinical experience was found). According to the level and seniority of doctors, they were randomly divided into virtual training group and conventional training control group, which made the two groups comparable, with 15 in each group. Subjective scores (including anatomical structure, surgical field of vision, cavity preparation, implant placement and process mastery) were given after the corresponding training in the two groups, and the virtual reality training system was used to test. The mesial and distal direction, buccolingual direction, depth and angle deviation of implants before and after the training were analyzed, and the differences between the two groups were compared. Results: The subjective scores of five dimensions in the virtual training group were significantly higher than those in the conventional training control group (P<0.05). In the virtual training group, the mesial and distal, buccolingual, depth and angle deviation of implants were (0.73±0.33), (0.78±0.41), (0.61±0.32) mm and 6.66°±3.87°. All of them were significantly lower than those in the control group [(0.85±0.32), (1.12±0.38), (0.89±0.24) mm and 9.68°±3.74°] (P<0.05). Conclusions: The self-developed virtual reality system of oral implant has good application effect, good operability and predictability. It can be effectively carried out in implant education and training, and it can strengthen skills of doctors, and is conducive to the practical operation.
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Affiliation(s)
- Y Zhou
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - S H Zhang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - X X Zhao
- School of Stomatology, Fujian Medical University, Fuzhou 350004, China
| | - W L Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - Q Lei
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - B W He
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
| | - W X Huang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - D Wu
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - J Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
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12
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Jiang CH, Lin PF, Chen FC, Chen JY, Xie WJ, Li M, Hu XJ, Chen WL, Cheng Y, Lin XX. Metabolic Profiling Revealed Prediction Biomarkers for Infantile Hemangioma in Umbilical Cord Blood Sera: A Prospective Study. J Proteome Res 2021; 21:822-832. [PMID: 34319108 DOI: 10.1021/acs.jproteome.1c00430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Infantile hemangioma (IH), the most common benign tumor in infancy, mostly arises and has rapid growth before 3 months of age. Because irreversible skin changes occur in the early proliferative stage, early medical treatment is essential to reduce the permanent sequelae caused by IH. Yet there are still no early screening biomarkers for IH before its visible emergence. This study aimed to explore prediction biomarkers using noninvasive umbilical cord blood (UCB). A prospective study of the metabolic profiling approach was performed on UCB sera from 28 infants with IH and 132 matched healthy controls from a UCB population comprising over 1500 infants (PeptideAtlas: PASS01675) using liquid chromatography-mass spectrometry. The metabolic profiling results exhibited the characteristic metabolic aberrance of IH. Machine learning suggested a panel of biomarkers to predict the occurrence of IH, with the area under curve (AUC) values in the receiver operating characteristic analysis all >0.943. Phenylacetic acid had potential to predict infants with large IH (diameter >2 cm) from those with small IH (diameter <2 cm), with an AUC of 0.756. The novel biomarkers in noninvasive UCB sera for predicting IH before its emergence might lead to a revolutionary clinical utility.
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Affiliation(s)
- Cheng-Hong Jiang
- Department of Plastic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China.,Department of Plastic Surgery and Regenerative Medicine Institute, Fujian Medical University, Fuzhou 35001, China.,Tissue and Organ Regeneration Engineering Center of Fujian Higher Education, Fuzhou 350001, China
| | - Peng-Fei Lin
- Department of Plastic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Fa-Chun Chen
- Department of Plastic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jia-Yao Chen
- Department of Plastic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 51000, China
| | - Wen-Jun Xie
- Department of Plastic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Ming Li
- Department of Plastic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Xiao-Jie Hu
- Department of Plastic and Reconstruction Surgery, School of Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200010, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yu Cheng
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.,School of Pharmacy, Shanghai Jiao Tong University Shanghai, 200240, China
| | - Xiao-Xi Lin
- Department of Plastic and Reconstruction Surgery, School of Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200010, China
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13
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Li QX, Cao HT, Li YY, Ou ZP, Lin XY, Zhang HQ, Lin ZY, Wang YY, Xie SL, Pan CB, Zhang B, Wang JG, Chen WL, Huang ZQ, Fan S, Li JS. [Evaluation of the effect of free fibular flap transplantation in repairing mandibular osteoradionecrosis defect in 151 cases]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:428-434. [PMID: 33904276 DOI: 10.3760/cma.j.cn112144-20210122-00036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical effect of free fibula flap transplantation in repairing the defect of mandibular osteoradionecrosis (ORN). Methods: A total of 151 mandibular ORN patients undergoing free fibular flap transplantation were selected from August 2005 to September 2020 in the Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University. Among them, 109 patients were males and 42 patients were females, aged (54.1±10.1) (ranged 31-85) years old. The clinical data of the patients was collected and the survival rate of the flaps and postoperative function were calculated to evaluate the surgical efficacy. The χ2 test was used for difference analysis. Results: Among the 151 patients, mandibular ORN caused by radiotherapy for nasopharyngeal carcinoma accounted for 79.5% (120/151). The average time for mandibular ORN appeared was 5(6) years after radiotherapy. Facial artery [57.2%(87/152)] and superior thyroid artery (50/152, 32.9%) were the main anastomotic arteries in the recipient area. There was no significant difference in the necrosis rates of the two flaps [10.3%(9/87) and 12.5%(5/50), respectively, P=0.949]. The main anastomotic veins in the recipient area were the external jugular vein [48.4%(135/279)] and the common facial vein [26.5%(74/279)]. Twenty-five cases (16.6%) had one vein anastomosed, and 126 cases (83.44%) had two veins anastomosed. There was no significant difference in the flap necrosis rate between the two conditions [20.0%(5/25) and 7.1%(9/126), respectively, P=0.100]. Ninety-seven cases (64.2%) used the peroneal musculocutaneous-fascia composite flap to repair the maxillofacial soft and hard tissue defects. Thirteen cases (8.6%) underwent the restorations with digital virtual surgery design, of which 5 cases were repaired with dental implants at the same time. After the operations, lower respiratory tract infection occurred in 17 patients (11.3%), and upper respiratory tract obstruction occurred in 3 cases (2.0%). The survival rate of the flap after operation was 90.7% (136/151), and 21 patients (13.9%) had flap vascular crisis. Delayed healing of maxillofacial wounds occurred in 33 cases (21.9%). After 3 to 24 months of follow-ups, 110 patients (76.9%) had no fistula inside/outside the oral cavity, 118 patients (82.5%) had an improvement in opening mouth of increasing (≥0.5 cm) after surgery, 135 patients (94.4%) had pain relief, 97 cases (67.8%) could eat normal diet, semi-liquid or soft food, and 137 cases (95.8%) were satisfied or basically satisfied with the treatment effects. Conclusions: The free fibular flap transplantation is an effective method to repair mandibular ORN defects. Preoperative vascular assessment is helpful for the selection of recipient vessels. Facial artery, superior thyroid artery, external jugular vein and common facial vein can be used as the main recipient vessels. The repair of the peroneal musculocutaneous-fascia composite flap facilitates the closure of internal and external fistulas. Digital technology can help to restore the maxillofacial shape more accurately, improve the patient's occlusal and chewing function and enhance the quality of life of mandibular ORN patients.
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Affiliation(s)
- Q X Li
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - H T Cao
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - Y Y Li
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - Z P Ou
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - X Y Lin
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - H Q Zhang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - Z Y Lin
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - Y Y Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - S L Xie
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - C B Pan
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - B Zhang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - J G Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - W L Chen
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - Z Q Huang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - S Fan
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
| | - J S Li
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China
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14
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Sun MY, Xu B, Wu QX, Chen WL, Cai S, Zhang H, Tang QF. Cisplatin-Resistant Gastric Cancer Cells Promote the Chemoresistance of Cisplatin-Sensitive Cells via the Exosomal RPS3-Mediated PI3K-Akt-Cofilin-1 Signaling Axis. Front Cell Dev Biol 2021; 9:618899. [PMID: 33644057 PMCID: PMC7905060 DOI: 10.3389/fcell.2021.618899] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Cisplatin is an important agent in first-line chemotherapy against gastric cancer (GC). However, consequential drug resistance limits its effectiveness for the treatment of GC. In this study, a cisplatin resistant gastric cancer cell line SGC7901R was determined by LC-MS/MS with increased exosomal levels of RPS3 protein. SGC7901R cell-derived exosomes were readily taken up by cisplatin-sensitive SGC7901S cells, thus triggering off a phenotype of chemoresistance in the receptor cells. Subsequently, it was demonstrated that exosomal RPS3 was essential for inducing chemoresistance of receptor cells as shown by the acquisition of this phenotype in SGC7901S cells with enforced expression of RPS3. Further mechanism study demonstrated that cisplatin-resistant gastric cancer cell-derived exosomal RPS3 enhanced the chemoresistance of cisplatin-sensitive gastric cancer cells through the PI3K-Akt-cofilin-1 signaling pathway. All these findings demonstrated that cisplatin-resistant gastric cancer cells communicate with sensitive cells through the intercellular delivery of exosomal RPS3 and activation of the PI3K-Akt-cofilin-1 signaling pathway. Targeting exosomal RPS3 protein in cisplatin-resistant gastric cancer cells may thus be a promising strategy to overcome cisplatin resistance in gastric cancer.
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Affiliation(s)
- Meng-Yao Sun
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bo Xu
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiu-Xue Wu
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Si Cai
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui Zhang
- Research Center for Traditional Chinese Medicine Complexity System, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qing-Feng Tang
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Clinical Laboratory, Jiading Branch of Shanghai General Hospital, Shanghai, China
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15
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Zhang JY, Zhang B, Gong X, Chang J, Jia MN, Liu C, Liang RR, Chen WL, Wu CH, Feng S. Development of a new dynamic foveated imager on wide-angle infra-red thermography system to improve local spatial resolution in EAST. Rev Sci Instrum 2020; 91:116101. [PMID: 33261436 DOI: 10.1063/5.0013212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 10/14/2020] [Indexed: 06/12/2023]
Abstract
A new dynamic foveated imager has been developed and commissioned on the wide-angle infra-red thermography system in the Experimental Advanced Superconducting Tokamak. This technique improves the local spatial resolution by a factor of 2 while maintaining the wide-angle view to ensure safety operation. Taking advantage of the new foveated imager, heat flux splitting under the application of resonant magnetic perturbation (RMP) coils has been clearly observed. The results indicate that the toroidal asymmetric power load pattern is closely related to the perturbation field induced by the RMP coils.
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Affiliation(s)
- J Y Zhang
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - B Zhang
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X Gong
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J Chang
- School of Optics and Photonics, Beijing Institute of Technology, Zhongguancun Street, Beijing 100081, People's Republic of China
| | - M N Jia
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - C Liu
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - R R Liang
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - W L Chen
- School of Optics and Photonics, Beijing Institute of Technology, Zhongguancun Street, Beijing 100081, People's Republic of China
| | - C H Wu
- School of Optics and Photonics, Beijing Institute of Technology, Zhongguancun Street, Beijing 100081, People's Republic of China
| | - S Feng
- School of Optics and Photonics, Beijing Institute of Technology, Zhongguancun Street, Beijing 100081, People's Republic of China
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Zhou X, Lu X, Tang L, Yan H, Chen WL, Shi W, Zhong ZD, You Y, Xia LH, Hu Y, Wang HF. [Optimization of ATG dose in haploid hematopoietic stem cell transplantation for hematologic malignancies]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:557-563. [PMID: 32810962 PMCID: PMC7449780 DOI: 10.3760/cma.j.issn.0253-2727.2020.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical efficacy of different doses of rabbit antithymocyte globulin (rATG) in haplo-HSCT in the treatment of hematologic malignancies. Methods: Malignant hematological patients treated at our hospital from March 2013 to December 2018 were retrospectively analyzed. These patients were divided into three groups as per three doses of ATG (6 mg/kg, 7.5 mg/kg, and 9 mg/kg) in the conditioning regimens. The transplant outcomes were compared in terms of the occurrence of acute graft versus host disease (GVHD) , infection, and survival. Results: ①Total 288 patients were enrolled in the study, including 182 men and 106 women, with a median age of 18 (6-62) years. Total 110 patients were diagnosed with acute lymphoblastic leukemia (ALL) , 128 with acute myelogenous leukemia (AML) , 8 with chronic myeloid leukemia (CML) , 28 with myelodysplastic syndrome (MDS) , and 14 with mixed cell leukemia (MAL) . There were 159 patients in the ATG-6 group, 72 in the ATG-7.5 group, and 57 in the ATG-9 group. The median follow-up time of post transplantation was 14 (0.2-74) months. ②The incidence of neutrophil engraftment (96.9% , 97.2% , and 96.5% , respectively) and platelet engraftment (92.5% , 87.5% , and 86% , respectively) did not significantly differ among the ATG-6, ATG-7.5, and ATG-9 groups (P=0.972, P=0.276) . The incidence of grades 2-4 acute GVHD was 14.5% , 11.1% , and 8.8% in the three groups, respectively (P=0.493) , chronic GVHD incidence in the three group was 8.8% , 14.3% and 12.0% , respectively (P=0.493) . The infection rates of CMV and EBV in the ATG-9 group (77.2% and 12.5% ) were significantly higher than those in the ATG-6 (43.3% and 3.5% ) , and ATG -7.5 group (44.4% and 1.5% ) (P<0.001 and P=0.033, respectively) . ③Among the three groups, there were no significant difference in the 3-year overall survival [68.5% (95% CI 60.3% -77.9% ) , 60.1% (95% CI 48.3% -74.8% ) , 64.7% (95% CI 51.9% -80.7% ) ], cumulative incidences of relapse [34.6% (95% CI 34.3% -35.1% ) , 38.0% (95% CI 37.3% -38.7% ) , 20.6% (95% CI 20.0% -21.3% ) ], disease-free survival [53.3% (95% CI 44.9% -63.4% ) , 51.9% (95% CI 41% -65.8% ) , 63.9% (95% CI 51.9% -78.7% ) ] and non-relapse mortality [24.2% (95% CI 23.8% -24.5% ) , 26.0% (95% CI 25.4% -26.6% ) , 23.6% (95% CI 26.3% -28.2% ) ] (P=0.648, P=0.165, and P=0.486 and P=0.955) . Conclusion: Low dose (6 mg/kg) of rATG may increase the risk of grade Ⅱ-Ⅳ aGVHD, and a high dose (9 mg/kg) of ATG could significantly increase the risk of CMV and EBV infection. Median dose (7.5 mg/kg) of ATG is expected to reduce the incidence of moderate to severe aGVHD and viral infections without increasing the mortality.
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Affiliation(s)
- X Zhou
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X Lu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L Tang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H Yan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - W L Chen
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - W Shi
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Z D Zhong
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y You
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L H Xia
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H F Wang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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17
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Dai W, Xu Y, Mo S, Li Q, Yu J, Wang R, Ma Y, Ni Y, Xiang W, Han L, Zhang L, Cai S, Qin J, Chen WL, Jia W, Cai G. GLUT3 induced by AMPK/CREB1 axis is key for withstanding energy stress and augments the efficacy of current colorectal cancer therapies. Signal Transduct Target Ther 2020; 5:177. [PMID: 32873793 PMCID: PMC7463260 DOI: 10.1038/s41392-020-00220-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [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: 03/14/2020] [Revised: 05/15/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023] Open
Abstract
Cancer cells are usually characterized by hyperactive glucose metabolism, which can often lead to glucose scarcity; thus, alternative pathways to rewire cancer metabolism are required. Here, we demonstrated that GLUT3 was highly expressed in colorectal cancer (CRC) and negatively linked to CRC patient outcomes, whereas GLUT1 was not associated with CRC prognosis. Under glucose-limiting conditions, GLUT3 expedited CRC cell growth by accelerating glucose input and fuelling nucleotide synthesis. Notably, GLUT3 had a greater impact on cell growth than GLUT1 under glucose-limiting stress. Mechanistically, low-glucose stress dramatically upregulated GLUT3 via the AMPK/CREB1 pathway. Furthermore, high GLUT3 expression remarkably increased the sensitivity of CRC cells to treatment with vitamin C and vitamin C-containing regimens. Together, the results of this study highlight the importance of the AMPK/CREB1/GLUT3 pathway for CRC cells to withstand glucose-limiting stress and underscore the therapeutic potential of vitamin C in CRC with high GLUT3 expression.
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Affiliation(s)
- Weixing Dai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ye Xu
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shaobo Mo
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qingguo Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jun Yu
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Renjie Wang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yanlei Ma
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yan Ni
- The Children's Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Wenqiang Xiang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingyu Han
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Long Zhang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Sanjun Cai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jun Qin
- The Key Laboratory of Stem Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
| | - Wei Jia
- University of Hawaii Cancer Center, Honolulu, HI, 96813, USA. .,School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Guoxiang Cai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
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18
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Lyu JZ, Ran Y, Hu SP, Chen WL, Sheng QS, Yang DG. [Clinical analysis of 33 cases of chronic liver diseases overlapping with CMV infection]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:608-612. [PMID: 32791798 DOI: 10.3760/cma.j.cn501113-20190409-00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the clinical features and outcomes of chronic liver diseases overlapping with CMV infection. Methods: Clinical characteristics, treatment and outcome of patients of chronic liver diseases overlapping with CMV infection were analyzed retrospectively. T-test was used for measurement data and χ (2) test was used for count data. All measurement data were expressed by (x ± s). P > 0.05 was not determined as significant. P < 0.05 was regarded as statistically significant. Results: Chronic liver diseases overlapping with CMV infections had similar clinical features. Etiopathogenic treatment + symptomatic supportive treatment + CMV overlapping infection treatment (including antiviral therapy, corticosteroids consideration, clearing heat and traditional Chinese choleretic medicine, etc) were the primary principles of therapy. The incidence of cytomegalovirus infection accounted for 4.125% during the corresponding hospitalization period. Cytomegalovirus infection had relatively caused liver function damage in patients with milder clinical symptoms and signs. Biochemical indicators before and after treatment showed that there was no significant difference in total bilirubin (TBil) before (262.93 ± 178.944) μmol/L and after one week of treatment (245.08 ± 179.332) μmol/L (P > 0.05). However, when TBIL was compared with three (156.58 ± 147.461) μmol/L and four weeks (103.39 ± 102.218) μmol/L) of treatment, the decrease was significant (P < 0.05, P < 0.01). Alanine aminotransferase (ALT) after one week (293.57 ± 467.438) U/L (P < 0.01) of treatment was significantly lower than before treatment (782.34 ± 828.801) U/L. Gamma-glutamyl transferase (GGT) after treatment (202.52 ± 155.174)U/L was significantly lower than before treatment(280.69 ± 205.619)U/L). Total bile acid (TBA) was increased after treatment (198.04 ± 155.174)μmol/L, when compared with that of before treatment (62.93 ± 178.944)μmol/L. Biochemical indicators of liver diseases had shown typical features of cholestasis, and the slow and reduced flow of bile acid was tracked and observed. Compared with the advanced group (182.45 ± 214.169) umol/L, the total bilirubin in inflammation group (50.36 ± 26.282) umol/L was decreased (P < 0.05). Moreover, advanced group (122.18 ± 106.780) umol/L (P < 0.05) had elevated total bile acid normalization rate than that of bile acid group (54.82 ± 56.123) umol/L, and the inflammatory phase had significantly better outcome than those with advanced-stage. Conclusion: Chronic liver diseases overlapping with cytomegalovirus infection has a good therapeutic outcome in the inflammatory phase, but in the advanced-stage; the therapeutic efficacy and outcome is poor and perilous.
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Affiliation(s)
- J Z Lyu
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China
| | - Y Ran
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China
| | - S P Hu
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China
| | - W L Chen
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China
| | - Q S Sheng
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China
| | - D G Yang
- Shenzhen Hospital of Beijing University of Chinese Medicine (Longgang) Department of Hepatology, Shenzhen 518172, China; Shenzhen Third People's Hospital, Shenzhen 518000, China
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19
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Chen WL, Jin X, Wang M, Liu D, Luo Q, Tian H, Cai L, Meng L, Bi R, Wang L, Xie X, Yu G, Li L, Dong C, Cai Q, Jia W, Wei W, Jia L. GLUT5-mediated fructose utilization drives lung cancer growth by stimulating fatty acid synthesis and AMPK/mTORC1 signaling. JCI Insight 2020; 5:131596. [PMID: 32051337 DOI: 10.1172/jci.insight.131596] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/10/2020] [Indexed: 12/22/2022] Open
Abstract
Lung cancer (LC) is a leading cause of cancer-related deaths worldwide. Its rapid growth requires hyperactive catabolism of principal metabolic fuels. It is unclear whether fructose, an abundant sugar in current diets, is essential for LC. We demonstrated that, under the condition of coexistence of metabolic fuels in the body, fructose was readily used by LC cells in vivo as a glucose alternative via upregulating GLUT5, a major fructose transporter encoded by solute carrier family 2 member 5 (SLC2A5). Metabolomic profiling coupled with isotope tracing demonstrated that incorporated fructose was catabolized to fuel fatty acid synthesis and palmitoleic acid generation in particular to expedite LC growth in vivo. Both in vitro and in vivo supplement of palmitoleic acid could restore impaired LC propagation caused by SLC2A5 deletion. Furthermore, molecular mechanism investigation revealed that GLUT5-mediated fructose utilization was required to suppress AMPK and consequently activate mTORC1 activity to promote LC growth. As such, pharmacological blockade of in vivo fructose utilization using a GLUT5 inhibitor remarkably curtailed LC growth. Together, this study underscores the importance of in vivo fructose utilization mediated by GLUT5 in governing LC growth and highlights a promising strategy to treat LC by targeting GLUT5 to eliminate those fructose-addicted neoplastic cells.
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Affiliation(s)
- Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mingsong Wang
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qin Luo
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hechuan Tian
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lili Cai
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lifei Meng
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Rui Bi
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lei Wang
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao Xie
- Department of Thoracic Cardiovascular Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guanzhen Yu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lihui Li
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Changsheng Dong
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiliang Cai
- Ministry of Education and Ministry of Health Key Lab of Medical Molecular Virology, School of Basic Medical Science, Fudan University, Shanghai, China
| | - Wei Jia
- University of Hawaii Cancer Center, Honolulu, Hawaii, USA
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Lijun Jia
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Zhu HL, DU Q, Chen WL, Zuo XX, Li QZ, Liu SJ. [Altered serum cytokine expression profile in systemic sclerosis and its regulatory mechanisms]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:716-722. [PMID: 31420628 DOI: 10.19723/j.issn.1671-167x.2019.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To analyze the expression profile of serum cytokines in patients with systemic sclerosis (SSc) and explore its possible regulatory mechanisms. METHODS Serum and DNA of peripheral blood mononuclear cells were collected from 30 SSc patients and 80 normal controls (NCs). According to the presence or absence of interstitial lung disease (ILD) in SSc, the patients were divided into SSc with ILD group and SSc without ILD group. According to the degree of skin involvement, the patients were divided into diffuse systemic scleroderma (dcSSc) group and limited systemic scleroderma (lcSSc) group. According to the presence of anti-topoisomerase-1 antibody (anti-Scl-70 antibody) in the serum of patients with SSc, they were divided into SSc Scl-70 (+) group and SSc Scl-70 (-) group. 27 cytokines in serum were detected by Luminex MAGPIX detection system and Bio-Plex Pro Human Cytokine 27-plex Assay kit: interleukin-1β (IL-1β), interleukin-1 receptor antagonist (IL-1ra), IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12P70, IL-13, IL-15, IL-17, basic fiber growth factor (BASIC FGF), eotaxin, granulocyte colony stimulating factor (G-CSF), granulocyte-macrophage colony stimulating factor (GM-CSF), interferon-γ (IFN-γ), interferon-gamma induced protein 10(IP-10), monocyte chemotactic protein 1(MCP-1), macrophage inflammatory protein-1α (MIP-1α), macrophage inflammatory protein 1β(MIP-1β), platelet-derived growth factor BB (PDGF-BB), regulated on activation in normal T-cell expressed and secreted (RANTES), tumor necrosis factor-α (TNF-α), and vascular endothelial growth factor(VEGF). Methylation sites were detected by Illumina 450K methylation chip. RESULTS Compared with NCs group, the expression of 12 cytokines (BASIC FGF, eotaxin, G-CSF, GM-CSF, IFN-γ, IL-1β, IL-1ra, IL-6, IP-10, MCP-1, TNF-α and RANTES) in the SSc group significantly increased (P<0.05), IL-5 was decreased expression in the SSc group (P<0.05), there was no significant difference in the expressions of the other 14 cytokines. Compared with lcSSc group, 9 cytokines (eotaxin, IL-5, MCP-1, IL-2, RANTES, IL17A, IL-8, MIP-1β and PDGF-BB) increased in dcSSc group, but there was no significant difference. Compared with SSc without ILD group, IL-15 increased in SSC with ILD group [18.2 (172.97) ng/L vs. 2.03(0.05) ng/L, P<0.05]. Compared with SSc Scl-70 (-) group, the expression of IP-10 decreased in SSc Scl-70 (+) group [1 030 (2 196.6) ng/L vs. 1 878 (2 964) ng/L, P<0.05]. The correlation analysis of serum cytokines with erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) showed that IL-6 was positively correlated with ESR (r =0.04, P= 0.017), MCP-1 (r=0.49, P=0.043) and MIP-1β (r=0.41, P=0.007) positively correlated with CRP. By analyzing the changes of methylation sites of cytokines, it was found that cg17744604 in IL-10 TSS1500 region, cg06111286 in IL-12P70 TSS200 region, cg07935264 in IL-1β TSS200 region, cg01467417 in IL-1ra TSS1500 region, cg03989987 in IL-1ra 5'UTR region and cg21099624 in VEGF TSS200 region were all hypomethylated. CONCLUSION There were different cytokines expression profiles in the serum of SSc patients, and the altered cytokines were correlected with the degree of skin damage and pulmonary fibrosis. Many cytokines were regulated by methylation.
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Affiliation(s)
- H L Zhu
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Q DU
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W L Chen
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X X Zuo
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Q Z Li
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - S J Liu
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
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21
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Liu S, Huang LP, Lin Z, Liu YF, Zheng ZR, Peng XE, Chen WL, Hu ZJ. [Association between the time of neutrophils to the lowest and prognosis of patients with esophageal squamous cell carcinoma treated with non-operative therapy]. Zhonghua Zhong Liu Za Zhi 2019; 41:124-128. [PMID: 30862142 DOI: 10.3760/cma.j.issn.0253-3766.2019.02.009] [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 investigate the association between the time of neutrophils to the lowest and prognosis of patients with esophageal squamous cell carcinoma (ESCC) treated with non-operative therapy. Methods: The clinical data of 325 non-operative treated ESCC patients were collected in this study. The X-title software was applied to establish optimal threshold of neutrophil reduction to the lowest value. According to the optimal threshold, the patients were divided into early group (115 cases) and late group (210 cases). The clinical features and survival time of the two groups were compared, and the factors of prognosis were analyzed by Cox regression model with univariate and multivariate analysis. Results: The X-title software demonstrated the optimal cutoff values for the time of neutrophils to the lowest was 39 days. The median overall survival time was 21.0 months in the early group which was significantly higher than that in the late group (16.0 months). Multivariate Cox regression analysis showed that the treatment methods and the time of neutrophils to the lowest were independent factors for overall survival of patients with ESCC treated by non-surgical therapy. Compared with radiotherapy alone, concurrent chemoradiation could benefit the survival (HR=0.64, P=0.026). The prognosis of patients in the late group of neutrophils to the lowest (HR=1.38, P=0.038) was poor compared with the early group. Furthermore, stratified by treatment methods, the overall survival of two groups showed statistically significant difference only in patients received concurrent chemoradiation. The mortality risk in the late group was higher than that in the early group (HR=3.53, P=0.010). Conclusion: The time of neutrophils to the lowest is an independent prognosis factor for non-operative treated ESCC patients. The prognosis of patients in the early group is better than that in the late group.
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Affiliation(s)
- S Liu
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - L P Huang
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - Z Lin
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - Y F Liu
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - Z R Zheng
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - X E Peng
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
| | - W L Chen
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou 363000, China
| | - Z J Hu
- School of Public Health, Fujian Medical University, Fuzhou 350100, China
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Wang W, Chen WL, Jia CQ, Wu XL, Shen HJ, Chen S, Song XD, Lu YH. [Evaluation of the right ventricular function in patients with pneumoconiosis by echocardiography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:224-226. [PMID: 29996232 DOI: 10.3760/cma.j.issn.1001-9391.2018.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate right ventricular function in patients with pneumoconiosis, and to provide a basis for quantitative diagnosis and treatment of pneumoconiosis in clinical practice. Methods: A total of 43 patients with pneumoconiosis who were hospitalized consecutively in Shijiazhuang Prevention and Treatment Center for Occupational Diseases from May 2015 to May 2016 were enrolled, and according to the stage of pneumoconiosis, they were divided into stage I group with 16 patients, stage II group with 14 patients, and stage III group with 13 patients. A total of 16 healthy subjects were enrolled as control group. Echocardiography was performed and the relevant parameters were recorded, i.e., right ventricular transverse diameter (RVTD), tricuspid annular plane systolic excursion (TAPSE), and right ventricular myocardial performance index(Tei index). Results: There were significant differences in Tei index and TAPSE between all groups (P <0.05) except between the stage I group and the control group in terms of Tei index (P>0.05) and between the stage I group and the stage II group in terms of TAPSE (P>0.05). Right ventricular Tei index was negatively correlated with TAPSE (r=-0.547,P<0.05). Conclusion: A combination of right ventricular Tei index and TAPSE can be used for early quantitative evaluation of right ventricular function in patients with pneumoconiosis.
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Affiliation(s)
- W Wang
- Shijiazhuang Prevention and Treatment Center of Occupation Diseases, Shijiazhuang 050031, China
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Zhang WX, Xiao XY, Peng CG, Chen WL, Xie S, Wang DW. Sodium tanshinone IIA sulfate protects myocardium against paraquat-induced toxicity through activating the Nrf2 signaling pathway in rats. Hum Exp Toxicol 2018; 38:247-254. [PMID: 30112919 DOI: 10.1177/0960327118792051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: To investigate the therapeutic effect and mechanism of sodium tanshinone IIA sulfate (STS) on paraquat (PQ)-induced myocardial injuries in a rat model. Methods: Healthy adult Sprague Dawley rats were randomly divided into normal control, PQ, and PQ + STS groups. PQ group was given a single intragastric administration of PQ (80 mg/kg). PQ + STS group was intraperitoneally injected with STS (1 ml/kg) at 30 min following PQ exposure. Rats in control and PQ groups were injected with equal amount of saline. After 12, 24, 48, and 72 h, rats were killed, and the apoptosis of myocardial cells was detected. Myocardial expression of Bax and Bcl-2 was measured. The activity of the nuclear erythroid 2-related factor 2 (Nrf2) pathway was assessed by Western blot. Results: The apoptotic cells in PQ group were significantly increased in a time-dependent manner compared with the control group ( p < 0.01). The rats in PQ group exhibited significantly lower Bcl-2 expression, but notably higher Bax expression at 12, 24, 48, and 72 h after PQ exposure ( p < 0.05 or 0.01). STS intervention markedly reduced the proportion of apoptotic myocardial cells, increased Bcl-2 expression, and decreased Bax expression at 24, 48, and 72 h after treatment ( p < 0.05 or 0.01). The expression of phosphorylated Nrf2 and heme oxygenase 1 in PQ + STS group was significantly increased compared with PQ and control groups ( p < 0.05 or 0.01). Conclusion: STS effectively inhibits PQ-induced myocardial cell apoptosis in rats via modulating the Nrf2 pathway, suggesting its potential as a promising therapeutic agent for PQ-induced myocardium damage.
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Affiliation(s)
- WX Zhang
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - XY Xiao
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - CG Peng
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - WL Chen
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - S Xie
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - DW Wang
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
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Zhu G, Zhao LY, Zhu LT, Deng XY, Chen WL. Effect of Experimental Parameters on Nanofiber Diameter from Electrospinning with Wire Electrodes. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/230/1/012043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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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Wang YY, Chen WL, Weng XQ, Sheng Y, Wu J, Hao J, Liu ZY, Zhu YM, Chen B, Xiong SM, Chen Y, Chen QS, Sun HP, Li JM, Wang J. Low CLL-1 Expression Is a Novel Adverse Predictor in 123 Patients with De Novo CD34 + Acute Myeloid Leukemia. Stem Cells Dev 2017; 26:1460-1467. [PMID: 28810819 DOI: 10.1089/scd.2016.0310] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Recent reports state that C-type lectin-like molecule-1 (CLL-1) in acute myeloid leukemia (AML) is expressed primarily on myeloid cells, but there is still no investigation about its prognostic significance on leukemic blast compartment. Hence, this study aimed to evaluate the prognostic value of CLL-1 in 123 patients with de novo CD34+ Non-M3 AML. Multiparameter flow cytometry was used to assess the expression of CLL-1 on immature compartment in AML and control groups. We found that CLL-1 expression level on blast compartment was closely linked to clinical characteristics, treatment response, and survival outcome of patients. Decreased expression of CLL-1 was observed on immature compartment from AML patients as compared with controls (62.6% vs. 86.5%, P < 0.05). Logistic model exhibited that CLL-1low independently predicted low complete remission rate with an odds ratio of 4.57 (2.53-6.61, P < 0.05). Additionally, CLL-1 expression level at diagnosis was inversely correlated to the residual blast cells (residual leukemia cell) after induction chemotherapy (r = -0.423, P < 0.05). Furthermore, multivariate Cox regression model demonstrated that CLL-1low was still an independent adverse predictor (P < 0.05 for event-free survival, P < 0.05 for overall survival). Notably, CLL-1low was able to discriminate poor survival patients from intermediate- and favorable-risk groups. Taken together, CLL-1 is a novel prognostic predictor that could be exploited to supplement the current AML prognostic risk stratification system, and potentially optimize the clinical management of AML.
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Affiliation(s)
- Yan-Yu Wang
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
- 2 Department of Hematology, Bei Zhan Hospital , Shanghai, China
- 3 Department of Hematology, The Central Hospital of Xu Hui District , Shanghai, China
| | - Wen-Lian Chen
- 4 University of Hawaii Cancer Center , Honolulu, Hawaii
| | - Xiang-Qin Weng
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yan Sheng
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jing Wu
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jie Hao
- 2 Department of Hematology, Bei Zhan Hospital , Shanghai, China
| | - Zhan-Yun Liu
- 2 Department of Hematology, Bei Zhan Hospital , Shanghai, China
| | - Yong-Mei Zhu
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Bing Chen
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Shu-Min Xiong
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yu Chen
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Qiu-Sheng Chen
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Hui-Ping Sun
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jun-Min Li
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jin Wang
- 1 State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
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Li JG, Ding Y, Huang YM, Chen WL, Pan LL, Li Y, Chen XL, Chen Y, Wang SY, Wu XN. FAMLF is a target of miR-181b in Burkitt lymphoma. ACTA ACUST UNITED AC 2017; 50:e5661. [PMID: 28492808 PMCID: PMC5441277 DOI: 10.1590/1414-431x20175661] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 09/28/2016] [Accepted: 03/02/2017] [Indexed: 12/12/2022]
Abstract
Burkitt lymphoma (BL) is a highly malignant non-Hodgkin's lymphoma that is closely
related to the abnormal expression of genes. Familial acute myelogenous leukemia
related factor (FAMLF; GenBank accession No. EF413001.1) is a novel
gene that was cloned by our research group, and miR-181b is located in the intron of
the FAMLF gene. To verify the role of miR-181b and
FAMLF in BL, RNAhybrid software was used to predict target site
of miR-181b on FAMLF and real-time quantitative PCR (RQ-PCR) was
used to detect expression of miR-181b and FAMLF in BL patients, Raji
cells and unaffected individuals. miR-181b was then transfected into Raji and CA46
cell lines and FAMLF expression was examined by RQ-PCR and western
blotting. Further, Raji cells viability and proliferation were detected by MTT and
clone formation, and Raji cell cycle and apoptosis were detected by flow cytometry.
The results showed that miR-181b can bind to bases 21–42 of the
FAMLF 5′ untranslated region (UTR), FAMLF was
highly expressed and miR-181b was lowly expressed in BL patients compared with
unaffected individuals. FAMLF expression was significantly and
inversely correlated to miR-181b expression, and miR-181b negatively regulated
FAMLF at posttranscriptional and translational levels. A
dual-luciferase reporter gene assay identified that the 5′ UTR of
FAMLF mRNA contained putative binding sites for miR-181b.
Down-regulation of FAMLF by miR-181b arrested cell cycle, inhibited
cell viability and proliferation in a BL cell line model. Our findings explain a new
mechanism of BL pathogenesis and may also have implications in the therapy of
FAMLF-overexpressing BL.
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Affiliation(s)
- J G Li
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Y Ding
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Y M Huang
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - W L Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - L L Pan
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Y Li
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - X L Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Y Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - S Y Wang
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - X N Wu
- School of Public Health, Fujian Medical University, Fuzhou, China
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Chen WL, Wang YY, Zhao A, Xia L, Xie G, Su M, Zhao L, Liu J, Qu C, Wei R, Rajani C, Ni Y, Cheng Z, Chen Z, Chen SJ, Jia W. Enhanced Fructose Utilization Mediated by SLC2A5 Is a Unique Metabolic Feature of Acute Myeloid Leukemia with Therapeutic Potential. Cancer Cell 2016; 30:779-791. [PMID: 27746145 PMCID: PMC5496656 DOI: 10.1016/j.ccell.2016.09.006] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 04/08/2016] [Accepted: 09/13/2016] [Indexed: 12/28/2022]
Abstract
Rapidly proliferating leukemic progenitor cells consume substantial glucose, which may lead to glucose insufficiency in bone marrow. We show that acute myeloid leukemia (AML) cells are prone to fructose utilization with an upregulated fructose transporter GLUT5, which compensates for glucose deficiency. Notably, AML patients with upregulated transcription of the GLUT5-encoding gene SLC2A5 or increased fructose utilization have poor outcomes. Pharmacological blockage of fructose uptake ameliorates leukemic phenotypes and potentiates the cytotoxicity of the antileukemic agent, Ara-C. In conclusion, this study highlights enhanced fructose utilization as a metabolic feature of AML and a potential therapeutic target.
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Affiliation(s)
- Wen-Lian Chen
- State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Yue-Ying Wang
- State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Aihua Zhao
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Li Xia
- State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Guoxiang Xie
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Mingming Su
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Linjing Zhao
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Jiajian Liu
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Chun Qu
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Runmin Wei
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Cynthia Rajani
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Yan Ni
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Zhen Cheng
- Molecular Imaging Program at Stanford, Department of Radiology and Bio-X Program, Canary Center at Stanford for Cancer Early Detection, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Zhu Chen
- State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Sai-Juan Chen
- State Key Laboratory of Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Wei Jia
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA.
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Wu X, Zhu W, Wang P, Fu ZY, Chen WL, Yang TT. [Repairmen of the rabbit's oral mucosa by tissue engineering technology]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1782-1784;1789. [PMID: 29798482 DOI: 10.13201/j.issn.1001-1781.2016.22.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Indexed: 11/12/2022]
Abstract
Objective:This experiment proposed to complicate BMMSCs and PLLA/SF scaffolds, to study its repairing ability for rabbit oral mucosa wound, and try to evaluate the most potential mixed proportion of PLLA and SF for tissue engineering. Method:Separating,cultivating and identifying BMMSCs. Observing cell phenotype of BMMSCs after cultivating BMMSCs in P70S30 PLLA/SF scaffold for one week.Observing the structure change of BMMSCs and P70S30PLLA/SF scaffold complexes after oral mucosa transplantation experiment for a week;Comparing the wound healing rate of composite of BMMSCs and PLLA/SF scafold,PLLA/SF scaffold and nature repair. Result:①There wasn't a significant effect of PLLA/SF scaffold on cell phenotype of BMMSCs.②The wounds fused well with the oral mucosa transplanted composite of BMMSCs and P70S30 PLLA/SF scaffold after a week.③The healing rate of composite of BMMSCs and P70S30 scaffold was the highest.The average healing rate of composite of BMMSCs and P70S30 scaffold was 94.8%,whose difference was statistically significant compared with natural healing and pure scaffold(P<0.01). Conclusion:①The complex composed of BMMSCs and PLLA/SF scaffolds has the potential as an ideal scaffold for tissue engineering oral mucosa.②The complex composed of BMMSCs and P70S30 PLLA/SF scaffolds is the most beneficial to wound healing of oral mucosa,and has the greatest potential for constructing tissue engineering oral mucosa.
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Affiliation(s)
- X Wu
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
| | - W Zhu
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
| | - P Wang
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
| | - Z Y Fu
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
| | - W L Chen
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
| | - T T Yang
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Jilin University,Changchun,130000,China
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Abstract
The current augmented-view device for glaucoma patients are limited by the low angle minification (less than 3X), image overlapping and pupil mismatching. We present a novel ultra-thin near-eye augmented-view device (UNAD) with a proper minification angle of 4X to avoid scanning eye movements. The device is realized by one symmetrical ultra-thin off-axis eight-mirror reversed telescopic optical system (field-of-view (FOV): x:-34°~3°; y: -5°~-20°, 5°~20°) and one central un-minified optical system (FOV: -5°~5°), and hence, the system can achieve a FOV (x:-34°~3°; y: -20°~20°) without overlapping images. Furthermore, the device fully accounts for pupil matching with the entrance pupil of the human eye. Finally, the simulation results in CODE V and LightTools verify that our proposed system is feasible and has potential practical value for glaucoma patients.
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Chen WL, Luo DF, Gao C, Ding Y, Wang SY. The consensus sequence of FAMLF alternative splice variants is overexpressed in undifferentiated hematopoietic cells. ACTA ACUST UNITED AC 2015; 48:603-9. [PMID: 26083996 PMCID: PMC4512098 DOI: 10.1590/1414-431x20154430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 10/09/2014] [Accepted: 02/03/2015] [Indexed: 01/01/2023]
Abstract
The familial acute myeloid leukemia related factor gene (FAMLF) was previously identified from a familial AML subtractive cDNA library and shown to undergo alternative splicing. This study used real-time quantitative PCR to investigate the expression of the FAMLF alternative-splicing transcript consensus sequence (FAMLF-CS) in peripheral blood mononuclear cells (PBMCs) from 119 patients with de novo acute leukemia (AL) and 104 healthy controls, as well as in CD34+ cells from 12 AL patients and 10 healthy donors. A 429-bp fragment from a novel splicing variant of FAMLF was obtained, and a 363-bp consensus sequence was targeted to quantify total FAMLF expression. Kruskal-Wallis, Nemenyi, Spearman's correlation, and Mann-Whitney U-tests were used to analyze the data. FAMLF-CS expression in PBMCs from AL patients and CD34+ cells from AL patients and controls was significantly higher than in control PBMCs (P < 0.0001). Moreover, FAMLF-CS expression in PBMCs from the AML group was positively correlated with red blood cell count (rs =0.317, P=0.006), hemoglobin levels (rs = 0.210, P = 0.049), and percentage of peripheral blood blasts (rs = 0.256, P = 0.027), but inversely correlated with hemoglobin levels in the control group (rs = -0.391, P < 0.0001). AML patients with high CD34+ expression showed significantly higher FAMLF-CS expression than those with low CD34+ expression (P = 0.041). Our results showed that FAMLF is highly expressed in both normal and malignant immature hematopoietic cells, but that expression is lower in normal mature PBMCs.
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Affiliation(s)
- W L Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - D F Luo
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - C Gao
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Y Ding
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - S Y Wang
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
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Shu SY, Zhang MJ, Cheng HQ, Tang SJ, Chen WL, Wu SR, Lin Y, Chen QS. Mutation analysis of PVRL1 in patients with non-syndromic cleft of the lip and/or palate in Guangdong. Genet Mol Res 2015; 14:3400-8. [PMID: 25966106 DOI: 10.4238/2015.april.15.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Non-syndromic cleft of the lip and/or palate (NSCLP) is a very common birth defect; the poliovirus receptor-like 1 gene (PVRL1) has been identified as a genetic risk factor for NSCLP in patients from Norway, the Philippines, and South America. Given the considerable variation in allele frequencies across these geographical regions, this study explored the relationship between NSCLP and mutations of PVRL1 in patients from Guangdong, China. We recruited 171 NSCLP patients and 100 volunteers, and divided our samples into 2 groups: a sequencing group and a mass spectrometry group. In the sequencing group, we screened for mutations in exons 2 and 5 of PVRL1 by polymerase chain reaction and direct sequencing in 71 NSCLP patients and 100 volunteers. In the mass spectrometry group, we screened for amino acid mutations in α-spliced transcript codons 112, 131, and 395, and in the β-spliced transcript codon 1082 using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis in 100 NSCLP patients and 100 volunteers. No mutations were detected in either PVRL1 exons 2 or 5 in the 71 NSCLP patients and 100 volunteers, nor did we find mutations of α-spliced transcript codons 112, 131, 395 and the β-spliced transcript codon 1082 in any of the 100 NSCLP patients and 100 volunteers. Thus, mutations in exons 2 and 5 of PVRL1, and T334A, A391T, G1183A in the α-spliced transcript, and G1082T in the β-spliced transcript do not participate in the development of NSCLP in patients from Guangdong.
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Affiliation(s)
- S Y Shu
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - M J Zhang
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - H Q Cheng
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - S J Tang
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - W L Chen
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - S R Wu
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Y Lin
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Q S Chen
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
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Chen CH, Chang YJ, Sy HN, Chen WL, Yen HC. Risk assessment of the outcome for cerebral infarction in tuberculous meningitis. Rev Neurol (Paris) 2014; 170:512-9. [PMID: 25194476 DOI: 10.1016/j.neurol.2014.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/10/2014] [Accepted: 06/18/2014] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Cerebral infarction in tuberculous meningitis is a major risk factor for permanent disability. This study assessed the clinical presentation of tuberculous meningitis and risks factors for cerebral infarction. OBSERVATION Thirty-eight adult patients with tuberculous meningitis were studied between 2002 and 2006. Clinical, radiological, and laboratory data of patients with cerebral infarction were compared with those of patients without cerebral infarction. Patients with cerebral infarction were significantly older (65.1 vs 52.1years), had higher risk assessment scores (3.7 vs 2.2), and more often had basal meningeal enhancement on imaging (92.3% vs 60.0%), mild to moderate sequelae (69.2% vs 4%), an overall poor brain outcome (69.2% vs 8%), aspirin prescription (84% vs 8%), and neurosurgical intervention for hydrocephalus (54.0% vs 16.0%). Cerebral infarction patients were also more likely to have experienced doctor-related delays in antituberculosis (61.5% vs 36%) and corticosteroid (61.5% vs 32%) therapy. DISCUSSION AND CONCLUSION The Framingham risk score would be an option for tuberculous meningitis patients to access cerebral infarction risk. Contrast-enhanced brain imaging is helpful for exploring basal meningeal enhancement, in order to obtain an early diagnosis. Antituberculosis, corticosteroid, and aspirin therapies should be started immediately when tuberculous meningitis is suspected.
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Affiliation(s)
- C-H Chen
- Division of infectious disease, department of internal medicine, Changhua-Christian hospital, 135, Nanhsiau street, Changhua, Taiwan, Republic of China; Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Republic of China.
| | - Y-J Chang
- Laboratory of epidemiology and biostatistics, Changhua-Christian hospital, 135, Nanhsiau street, Changhua, Taiwan, Republic of China
| | - H-N Sy
- Department of neurology, Changhua-Christian hospital, 135, Nanhsiau street, Changhua, Taiwan, Republic of China
| | - W L Chen
- Department of medical imaging, Changhua-Christian hospital, 135, Nanhsiau street, Changhua, Taiwan, Republic of China
| | - H-C Yen
- Department of neurosurgery, Changhua-Christian hospital, 135, Nanhsiau street, Changhua, Taiwan, Republic of China
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Wang Y, Zhang L, Chen WL, Wang JH, Li N, Li JM, Mi JQ, Zhang WN, Li Y, Wu SF, Jin J, Wang YG, Huang H, Chen Z, Chen SJ, Tang H. Rapid diagnosis and prognosis of de novo acute myeloid leukemia by serum metabonomic analysis. J Proteome Res 2013; 12:4393-401. [PMID: 23998518 DOI: 10.1021/pr400403p] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Acute myeloid leukemia (AML) is a life-threatening hematological disease. Novel diagnostic and prognostic markers will be essential for new therapeutics and for significantly improving the disease prognosis. To characterize the metabolic features associated with AML and search for potential diagnostic and prognostic methods, here we analyzed the phenotypic characteristics of serum metabolite composition (metabonome) in a cohort of 183 patients with de novo acute myeloid leukemia together with 232 age- and gender-matched healthy controls using (1)H NMR spectroscopy in conjunction with multivariate data analysis. We observed significant serum metabonomic differences between AML patients and healthy controls and between AML patients with favorable and intermediate cytogenetic risks. Such differences were highlighted by systems differentiations in multiple metabolic pathways including glycolysis/gluconeogenesis, TCA cycle, biosynthesis of proteins and lipoproteins, and metabolism of fatty acids and cell membrane components, especially choline and its phosphorylated derivatives. This demonstrated the NMR-based metabonomics as a rapid and less invasive method for potential AML diagnosis and prognosis. The serum metabolic phenotypes observed here indicated that integration of metabonomics with other techniques will be useful for better understanding the biochemistry of pathogenesis and progression of leukemia.
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Affiliation(s)
- Yihuang Wang
- State Key Laboratory of Medical Genomics, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences and Shanghai Institute of Hematology, Rui Jin Hospital, affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
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Kao TW, Chou CH, Wang CC, Chou CC, Hu J, Chen WL. Associations between serum total bilirubin levels and functional dependence in the elderly. Intern Med J 2013; 42:1199-207. [PMID: 22032210 DOI: 10.1111/j.1445-5994.2011.02620.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Accepted: 10/20/2011] [Indexed: 11/26/2022]
Abstract
BACKGROUND Many studies support the role of bilirubin as a cytoprotector in chronic inflammatory diseases, such as stroke and atherosclerosis. AIM To investigate the relationship between serum total bilirubin levels and functional dependence in older adults. METHODS Data from the National Health and Nutrition Examination Survey (1999-2002) pertaining to 2235 old adults were analysed. All participants had given a household interview, providing information of five major domains on self-reported functional status (activities of daily living, instrumental activities of daily living, leisure and social activities, lower extremity mobility and general physical activities), had completed serum total bilirubin measurement, and a questionnaire regarding personal health. Poor performance was defined as experiencing difficulty with one or more items in a given domain. Functional dependence was defined as having three or more poor performances in the five major domains. Multiple logistic regression was performed together with quartile-based stratified odds ratio (OR) comparison and trend tests. RESULTS The OR of functional dependence for each standard deviation increment in the serum total bilirubin level was 0.56 (P = 0.002). After additional adjustment, the inverse association remained essentially unchanged. In quartile-based analysis, participants with higher quartiles of serum total bilirubin tended to have lower ORs of functional dependence. The trends of lower likelihood of functional dependence across increasing quartiles of the serum total bilirubin level were statistically significant (P < 0.05 for all trends). CONCLUSIONS Higher serum total bilirubin levels were associated with lower likelihood of functional dependence in older adults.
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Affiliation(s)
- T W Kao
- Department of Family and Community Medicine, Tri-Service General Hospital, Taipei, Taiwan; School of Medicine, National Defense Medical Center, Taipei, Taiwan
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35
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Chen WL, Guo DW, Shen YY, Guo SR, Ruan KP. Effects of highly hygroscopic excipients on the hydrolysis of simvastatin in tablet at high relative humidity. Indian J Pharm Sci 2013; 74:527-34. [PMID: 23798778 PMCID: PMC3687922 DOI: 10.4103/0250-474x.110587] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 11/20/2012] [Accepted: 12/07/2012] [Indexed: 11/06/2022] Open
Abstract
Effects of highly hygroscopic sorbitol, citric acid, sodium carboxymethyl cellulose or polyvinylpolypyrrolidone, on the hydrolysis of simvastatin in tablets at 25°/90% RH were studied. The simvastatin tablets were prepared by direct powder compression. Simvastatin and its hydrolyte, simvastatin acid, were quantitatively analysed by high performance liquid chromotography. The hygroscopicity, water swelling ratio, water solubility and pH of the four hygroscopic excipients were investigated. During the investigation period, the weight gain of sorbitol or citric acid increased faster than that of polyvinylpolypyrrolidone or sodium carboxymethyl cellulose at 25°/90% RH, accordingly, the moisture sorption of the tablets containing citric acid or sorbitol (T-3 or T-6) were more than that of the tablets containing sodium carboxymethyl cellulose or polyvinylpolypyrrolidone (T-4 or T-5). The increase of simvastatin acid content with time at 25°/90% RH for the tablets was in the following order: T-6 < T-4 < T-3 < T-5. The effects of the four excipients on the hydrolysis of simvastatin in tablet were related to not only their hygroscopicity but also their other properties, such as moisture retention capacity and pH. Sorbitol as hygroscopic excipient in tablet can most effectively prevent the hydrolysis of simvastatin in tablet.
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Affiliation(s)
- W L Chen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai-200 240, China
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36
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Xu HR, Chu NN, Chen WL, Wang ZD, Li XN. Liquid chromatography-mass spectrometry method for the quantification of posaconazole in human plasma: application to pharmacokinetics following single-dose administration in the fasted state and with a high-fat meal. Pharmazie 2013; 68:173-177. [PMID: 23556334] [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: 06/02/2023]
Abstract
A liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was developed to determine concentrations of posaconazole in human plasma precipitated by acetonitrile including internal standard. Rapid chromatographic separation was achieved in the mobile phase composition of acetonitrile, water and formic acid (v/v/v, 55:45:0.1) with a flow rate of 0.25 ml/min. Posaconazole-d4 was used as internal standard. Detection was undertaken with cation electrospray tandem mass spectrometry on a Sciex/API3000. The method was accurate, specific and sensitive for the analysis of posaconazole in human plasma in the concentration range of 2-1000 ng/ml. The inter- and intra-batch accuracy was within +/- 10% and the lower limit of quantification was 2 ng/ml. The method facilitated a clinical pharmacokinetic study after oral administration of a single-dose of posaconazole suspension in the fasted state and with a high-fat meal in a two-period crossover design. Cmax (maximum concentration) and AUC (area under serum drug concentration) were significantly increased, and Tmax (time to maximum plasma concentration) was delayed under fed condition, which suggested that simultaneous administration of posaconazole with food may help to achieve higher plasma concentrations and result in better antifungal efficacy.
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Affiliation(s)
- H R Xu
- Department of Clinical Pharmacology, Zhong Shan Hospital, Fudan University, Shanghai, China
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Gao C, Wang B, Chen WL, Bai Y, Miao J, Zhu X, Li TC, Wang LJ. Fiber-based multiple-access ultrastable frequency dissemination. Opt Lett 2012; 37:4690-4692. [PMID: 23164881 DOI: 10.1364/ol.37.004690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We demonstrate a fiber-based multiple-access ultrastable frequency dissemination scheme over an 83 km fiber link. As a performance test, we reproduce the disseminated 9.1 GHz radio-frequency modulation signal at an arbitrary point in the dissemination channel. Relative frequency stability of 7×10(-14)/s and 5×10(-18)/day is obtained. Highly synchronized frequency signals can be regenerated along the entire fiber pathway and its applications are discussed.
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Affiliation(s)
- C Gao
- Joint Institute for Measurement Science, Tsinghua University, Beijing 100084, China
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Chan SHH, Chan JYH, Hsu KS, Li FCH, Sun EYH, Chen WL, Chang AYW. Amelioration of central cardiovascular regulatory dysfunction by tropomyocin receptor kinase B in a mevinphos intoxication model of brain stem death. Br J Pharmacol 2012; 164:2015-28. [PMID: 21615729 DOI: 10.1111/j.1476-5381.2011.01508.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND AND PURPOSE Little information exists on the mechanisms that precipitate brain stem death, the legal definition of death in many developed countries. We investigated the role of tropomyocin receptor kinase B (TrkB) and its downstream signalling pathways in the rostral ventrolateral medulla (RVLM) during experimental brain stem death. EXPERIMENTAL APPROACH An experimental model of brain stem death that employed microinjection of the organophosphate insecticide mevinphos bilaterally into the RVLM of Sprague-Dawley rats was used, in conjunction with cardiovascular, pharmacological and biochemical evaluations. KEY RESULTS A significant increase in TrkB protein, phosphorylation of TrkB at Tyr(516) (pTrkB(Y516) ), Shc at Tyr(317) (pShc(Y317) ) or ERK at Thr(202) /Tyr(204) , or Ras activity in RVLM occurred preferentially during the pro-life phase of experimental brain stem death. Microinjection bilaterally into RVLM of a specific TrkB inhibitor, K252a, antagonized those increases. Pretreatment with anti-pShc(Y317) antiserum, Src homology 3 binding peptide (Grb2/SOS inhibitor), farnesylthioacetic acid (Ras inhibitor), manumycin A (Ras inhibitor) or GW5074 (Raf-1 inhibitor) blunted the preferential augmentation of Ras activity or ERK phosphorylation in RVLM and blocked the up-regulated NOS I/protein kinase G (PKG) signalling, the pro-life cascade that sustains central cardiovascular regulation during experimental brain stem death. CONCLUSIONS AND IMPLICATIONS Activation of TrkB, followed by recruitment of Shc/Grb2/SOS adaptor proteins, leading to activation of Ras/Raf-1/ERK signalling pathway plays a crucial role in ameliorating central cardiovascular regulatory dysfunction via up-regulation of NOS I/PKG signalling cascade in the RVLM in brain stem death. These findings provide novel information for developing therapeutic strategies against this fatal eventuality.
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Affiliation(s)
- S H H Chan
- Center for Translational Researchin Biomedical Sciences,Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung, Taiwan
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Liao YC, Ruan JW, Lua I, Li MH, Chen WL, Wang JRY, Kao RH, Chen JH. Overexpressed hPTTG1 promotes breast cancer cell invasion and metastasis by regulating GEF-H1/RhoA signalling. Oncogene 2011; 31:3086-97. [PMID: 22002306 PMCID: PMC3381367 DOI: 10.1038/onc.2011.476] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Human pituitary tumour-transforming gene 1 (hPTTG1) is an oncogenic transcription factor that is overexpressed in many tumour types, especially tumours with metastatic abilities. However, how hPTTG1 overexpression drives metastasis is not yet clear. As a transcription factor, hPTTG1 may promote metastasis by activating target genes that are involved in the metastatic process. Here, we showed that Rho guanine nucleotide exchange factor-H1 (GEF-H1) was transcriptionally activated by hPTTG1, thereby promoting breast cancer metastasis. Luciferase reporter analyses and chromatin immunoprecipitation (ChIP) assays showed that hPTTG1 directly bound and activated the GEF-H1 gene promoter. In this study, RNA interference-mediated knockdown of hPTTG1 in highly metastatic breast tumour cells decreased GEF-H1 expression and RhoA activation, thereby reducing cell motility and invasion, and interfering with cytoskeletal remodelling in vitro, and impairing the tumour metastasis in vivo. The restoration of GEF-H1 expression in hPTTG1-knockdown cells rescued the hPTTG1-knockdown effects on cytoskeletal changes in vitro and tumour metastasis in vivo. Conversely, ectopic expression of hPTTG1 in non-metastatic breast tumour cells induced cytoskeletal rearrangements, and allowed these cells to metastasise in a mouse model by orthotopic implantation. In human tumour samples, hPTTG1 expression was also correlated to GEF-H1 expression in aggressive breast carcinoma. Altogether, these findings definitively establish a role for hPTTG1 in activating the GEF-H1/RhoA pathway as a newly identified mechanism in breast cancer metastasis.
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Affiliation(s)
- Y C Liao
- Institute of Medical Science, Tzu-Chi University, Hualien, Taiwan
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Chen CP, Lin SP, Su YN, Chern SR, Tsai FJ, Chen WL, Wang W. Self-injurious behavior associated with trisomy 9p (9p13.1 --> p24.3). Genet Couns 2011; 22:327-331. [PMID: 22029177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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41
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Chen CP, Tsai FJ, Lee CC, Chen WL, Pan CW, Wu PC, Wang W. Prenatal diagnosis of satellited 21q derived from pericentric inversion involving the satellite stalk region and terminal 21q. Genet Couns 2010; 21:353-357. [PMID: 20964129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Chen WL, Chen SC, Chen CC, Chou CH, Shih YY, Chen YL, Kuo TS. Patient-driven loop control for ambulation function restoration in a non-invasive functional electrical stimulation system. Disabil Rehabil 2009; 32:65-71. [PMID: 19925278 DOI: 10.3109/09638280903026564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE In this study, a patient-driven loop control in a non-invasive functional electrical stimulation (FES) system was designed to restore ambulation function of patients with stroke with their residual capabilities. METHOD With this patient-driven loop control, patients use the electromyographic (EMG) signals from their voluntary controlled muscles in affected extremity to adjust stimulus parameters of the system. A special designed FES system generated electrical stimuli to excite the paralysed muscles through surface electrodes on the basis of the control command from the residual myoelectric signals. The EMG signals were also served as the trigger and the adjustment of stimulus parameters and thereby adding versatility of the FES system. One patient with hemiplegia was recruited to conduct clinical evaluation and treated by using the new closed-loop FES system. RESULTS The experimental results showed that hemiplegic could successfully control the system to restore their lost ambulation functions with the strategy of patient-driven loop control. It is revealed that the mean velocity, cadence, stride length, active ankle motion range and functional ambulation category have improved significantly from 0.22 + or - 0.17 m/s, 37.3 + or - 15.5 steps/min, 0.32 + or - 0.11 m, 10 degrees , level 2 to 0.46 + or - 0.23 m/s, 58.2 + or - 19.1 steps/min, 0.73 + or - 0.22 m, 35 degrees , level 4 respectively for the patient. A paired t-test indicated that differences in the EMG of the tibialis anterior and the gastrocnemius muscles between patient's disabled (affected-side) foot and normal (unaffected-side) foot are not significant (p > 0.05) after 12 weeks of training. CONCLUSIONS According to the experiment results, this patient-driven loop control can be beneficial for patient with hemiplegia to restore their ambulation functions such as dorsi-flexion and plantar-flexion. The control strategy of this study has the potential to be employed not only in the FES system but also in other assistive devices.
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Affiliation(s)
- W L Chen
- Department of Electrical Engineering, Chang Gung University, Tao-Yuan, Taiwan.
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Chen CM, Fan JY, Chen WL, Chen MK. Lethal sphenoid fungal sinusitis in an immunocompromised elderly patient. B-ENT 2009; 5:173-177. [PMID: 19902855] [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] [Indexed: 05/28/2023] Open
Abstract
Sphenoid fungal balls are rare and typically indolent lesions, unless superinfected by bacteria or invasive to adjacent neurovascular structures. If the identification or treatment of underlying complications is delayed in an immunocompromised patient, a catastrophic outcome may result. We report the case of an elderly female patient with poorly controlled diabetes mellitus suffering from sphenoid fungal sinusitis that is complicated by cavernous sinus thrombophlebitis and carotid artery stenosis. In spite of reasonable diagnosis and therapy, the patient's general condition deteriorated and she eventually died. The clinical presentation, diagnosis, and treatment strategy are discussed.
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Affiliation(s)
- C M Chen
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
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Chu NN, Li XN, Chen WL, Xu HR. Determination of chiglitazar, a dual alpha/gamma peroxisome proliferator-activated receptor (PPAR) agonist, in human plasma by liquid chromatography-tandem mass spectrometry. Pharmazie 2007; 62:825-829. [PMID: 18065097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Chiglitazar is a dual alpha/gamma peroxisome proliferator-activated receptor (PPAR) agonist. A LC-MS/MS method for the determination of chiglitazar was developed and validated. The assay used 0.2 mL of plasma. 90% acetonitrile containing internal standard was used for protein precipitation. The mobile phase contained 70/30 (v/v) of methanol and water at a flow rate of 0.25 mL/min. Detection was by negative ion electrospray tandem mass spectrometry on a Sciex API 3000. The standard curve, which ranged from 2 to 1500 ng/mL, was fitted to a 1/x weighted quadratic regression model. The validation results demonstrated that the method was sensitive, rapid, selective and robust and provided satisfactory precision and accuracy. The method has been successfully used for the analysis of clinical samples in pharmacokinetic studies of chiglitazar.
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Affiliation(s)
- N N Chu
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, PR China.
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Chu NN, Li XN, Chen WL, Xu HR. Pharmacokinetics and safety of recombinant human parathyroid hormone (1-34) (teriparatide) after single ascending doses in Chinese healthy volunteers. Pharmazie 2007; 62:869-871. [PMID: 18065105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The pharmacokinetics and safety of recombinant human parathyroid hormone (1-34) [rhPTH (1-34)] after single ascending doses were evaluated in Chinese healthy volunteers. Nine healthy volunteers (five male and four female) were recruited for an open label, randomized, three multiply three crossover, single ascending dose (10, 20, and 40 microg) study. Using a validated radioimmunoassay, we determined the plasma concentrations of rhPTH (1-34). The mean peak plasma concentration (Cmax) were 123.6, 195.6, and 318.2 pg x mL(-1) respectively, and were reached from 25.6 to 36.1 min after subcutaneous administration. After Cmax was reached, the plasma drug level decreased quickly, with elimination halflife (t(1/2)) of 53.9 to 64.1 min. The mean AUC(0-infinity) (the area under the plasma concentration versus time curve from time zero to infinite) of rhPTH (1-34) were 11794.2 +/- 974.8, 21606.7 +/- 4753.9, 33877.0 +/- 8374.4 pg x min x mL(-1), respectively. The mean AUC(0-t) (the area under the plasma concentration versus time curve from time zero to the last quantifiable concentration) of rhPTH (1-34) were 9034.4 +/- 1073.9, 17883.3 +/- 4597.1, 31693.5 +/- 6574.8 pg x min x mL(-1), respectively. Dose-related linear trend were observed for AUC(o-t) and Cmax of rhPTH (1-34). t(1/2) and Tmax (time to Cmax) of rhPTH (1-34) were independent of administered dose. rhPTH (1-34) was safe and well tolerated by all volunteers.
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Affiliation(s)
- N N Chu
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, PR China.
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Xu HR, Chen WL, Li XN, Liu GY, Chu NN, Yu C. Pharmacokinetics and urinary excretion of eprosartan in Chinese healthy volunteers of different gender. Pharmazie 2007; 62:782-784. [PMID: 18236785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The study aims to evaluate the pharmacokinetics and urinary excretion of eprosartan in Chinese healthy volunteers and to study the effect of gender on pharmacokinetics of eprosartan. Twenty healthy volunteers (ten men and ten women) were recruited for an open trial and received a single dose of 600 mg eprosartan. Using a validated LC/MS/MS method, plasma and urinary concentrations of eprosartan were determined. The following pharmacokinetic parameters were elucidated after administration: the area under the plasma concentration versus time curve from 0 to 32 h (AUC0-32h) 14818.75 +/- 7312.11 ng x h/mL, the area under the plasma concentration versus time curve from 0 to infinite (AUC(0-infinity)) 15081.62 +/- 7379.63 ng x h/mL, peak plasma concentration (Cmax) 3664.25 x 1653.94 ng x h/mL, time to Cmax (Tmax) 1.63 +/- 0.46 h, elimination half-life (t(1/2)) 8.03 +/- 4.04 h, apparent clearance (CL/F) 47.84 +/- 19.21 L/h, apparent volume of distribution of the central compartment (V/F) 537.21 +/- 287.91 L, renal clearance (CLr) 1.33 +/- 0.41 L/h, amount of unchanged eprosartan excreted into urine 18.44 +/- 6.43 mg and fraction of unchanged eprosartan excreted into urine 3.07 +/- 1.07%. Our results also indicated that no gender differences were observed in the pharmacokinetics of eprosartan in Chinese healthy volunteers.
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Affiliation(s)
- H R Xu
- Department of Clinical Pharmacology, ZhongShan Hospital, Fudan University, 180 Fen Lin Road, Shanghai 200032, PR China.
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Abstract
Heating is necessary for processing milk in the dairy industry, which evidently produces a conformational change in beta-lactoglobulin (beta-LG). beta-Lactoglobulin, a major protein that accounts for approximately 10 to 15% of total milk proteins, is a globular protein consisting of 162 AA with a relative molecular mass of 18.4 kDa. The purpose of the present study was to determine the antioxidant role of beta-LG in milk and the possible mechanism involved. We showed that beta-LG is a mild antioxidant whose potency is less than that of vitamin E and probucol (the latter being an antioxidant used for clinical therapy). The conversion of the beta-LG monomer to dimer was responsible, in part, for the mode of action in protecting low-density lipoproteins against copper-induced oxidation. Cross-linking the free thiol groups of beta-LG by heating (100 degrees C for 2 min), or chemically modifying the beta-LG by carboxymethylation to block the thiol groups resulted in a substantial loss of antioxidant activity. The data suggest that Cys-121 plays an essential role in the antioxidant nature of beta-LG. By using an anti-LG antibody affinity column to deplete the beta-LG from milk, we observed from the lost antioxidant activity that beta-LG contributes approximately 50% of the total activity. Because beta-LG is extremely sensitive to thermal denaturation, to maintain its antioxidant nature, dairy products consumed daily should not be overheated in order to maintain its antioxidant nature.
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Affiliation(s)
- H C Liu
- Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Taiwan, Republic of China
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Wang W, Cai DJ, Shan ZJ, Chen WL, Poletika N, Gao XW. Comparison of the acute toxicity for gamma-cyhalothrin and lambda-cyhalothrin to zebra fish and shrimp. Regul Toxicol Pharmacol 2007; 47:184-8. [PMID: 17052827 DOI: 10.1016/j.yrtph.2006.09.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2006] [Indexed: 11/28/2022]
Abstract
Gamma-cyhalothrin 15CS (GCH) contains only the active stereoisomer of the two isomers found in lambda-cyhalothrin 25EW (LCH). GCH (0.5 x rate) provides equivalent overall insect control as LCH (1 x rate). Both formulations showed high acute toxicity to zebra fish (Brachydanio rerio H.B.) and shrimp (Macrobrachium nippoensis de Haan). The 96-h LC(50(zebra fish,GCH)) is 1.93 microg a.i/L and LC(50(zebra fish,LCH)) is 1.94 microg a.i/L. LC(50(shrimp,GCH)) is 0.28 microg a.i./L and LC(50(shrimp,LCH)) 0.04 microg a.i./L. This indicates that the toxicity to shrimp is likely stereochemistry-dependent. The fates of GCH and LCH are similar in laboratory simulated rice paddy water and their concentrations decrease rapidly, with no GCH or LCH detected after 3 or 4 days. Both are toxic to shrimp in a simulated paddy irrigation reservoir even though treated return water is diluted 5 times. No shrimp fatality is shown in the GCH-treated paddy water after a 4-day holding period, and longer than 5 days is necessary to reach a zero fatality rate for LCH. This is compatible with the 7-day water holding period considered reasonable in agricultural practice.
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Affiliation(s)
- Wei Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China
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Chen WL, Liu WT, Yang MC, Hwang MT, Tsao JH, Mao SJT. A Novel Conformation-Dependent Monoclonal Antibody Specific to the Native Structure of β-Lactoglobulin and Its Application. J Dairy Sci 2006; 89:912-21. [PMID: 16507685 DOI: 10.3168/jds.s0022-0302(06)72156-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Molten globules are thought to be general intermediates in protein folding and unfolding. beta-lactoglobulin (beta-LG) is one of the major bovine whey proteins, constituting approximately 10 to 15% of total milk proteins. We have recently identified beta-LG as a superior marker for evaluating thermally processed milk. Strand D of beta-LG participates in irreversible thermal unfolding as probed by a monoclonal antibody (mAb) specific to thermally denatured beta-LG. In the present study, we used native beta-LG as an immunogen to test the hypothesis that a specific mAb against the native beta-LG could be established. As result, a mAb (4H11E8) directed against the native structure of beta-LG was made. The antibody did not recognize the heat-denatured form of beta-LG, such as its dimer and aggregates. Immunoassay using this "native" mAb showed that the stability of beta-LG was at temperatures < or =70 degrees C. beta-Lactoglobulin began to deteriorate between 70 and 80 degrees C over time. The denaturation was correlated with the transition temperature of beta-LG. Further chemical modification of Cys (carboxymethylation) or positively charged residues (acetylation) of beta-LG totally abolished its immunoreactivity, confirming the conformation-dependent nature of this mAb. Using competitive ELISA, the 4H11E8 mAb could determine the native beta-LG content in commercially processed milks. Concentrations of native beta-LG varied significantly among the local brands tested. From a technological standpoint, the mAb prepared in this study is relevant to the design and operation of appropriate processes for thermal sanitation of milk and of other dairy products.
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Affiliation(s)
- W L Chen
- Research Institute of Biochemical Engineering, Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
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Chen CP, Wang TH, Chang TY, Lee CC, Chen WL, Chen LF, Wang W. Prenatal diagnosis of the supernumerary der(22)t(11;22) syndrome associated with abnormal sonographic findings. Genet Couns 2006; 17:469-72. [PMID: 17375536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
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