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Rong ZH, Li FS, Wang P, Di X, Ni L, Liu CW. [Research progress of tRNA-derived small RNA in cardiovascular diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:445-450. [PMID: 38644263 DOI: 10.3760/cma.j.cn112148-20231018-00339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Affiliation(s)
- Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - F S Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - P Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Cui Y, Li Z, Ni L, Yu S, Shan X, Hu P, Ji Z, Jing W, Zhou Y, Wang B, Dong H, Zhou J, Xie K, Yu Q. Induction of MTHFD2 in Macrophages Inhibits Reactive Oxygen Species-mediated NF-κB Activation and Protects against Inflammatory Responses. J Immunol 2024; 212:1345-1356. [PMID: 38407485 DOI: 10.4049/jimmunol.2300209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 02/06/2024] [Indexed: 02/27/2024]
Abstract
The one-carbon metabolism enzyme methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is critical for cancer cell proliferation and immune cell phenotypes, but whether it can contribute to macrophage inflammatory responses remains unclear. In this study, we show that MTHFD2 was upregulated by LPS in murine macrophages upon activation of the TLR4-MyD88-IKKα/β-NF-κB signaling pathway. MTHFD2 significantly attenuated LPS-induced macrophage proinflammatory cytokine production through its enzymatic activity. Notably, ablation of myeloid MTHFD2 rendered mice more sensitive to septic shock and CCl4-induced acute hepatitis. Mechanistically, MTHFD2 restrained IKKα/β-NF-κB activation and macrophage inflammatory phenotype by scavenging reactive oxygen species through the generation of NADPH. Our study reveals MTHFD2 as a "self-control" mechanism in macrophage-mediated inflammatory responses.
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Affiliation(s)
- Yan Cui
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Department of Health Management Center & Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Zihan Li
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Lina Ni
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Sujun Yu
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiao Shan
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Penghui Hu
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zemin Ji
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Weijia Jing
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanzhao Zhou
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Baochen Wang
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Hongyuan Dong
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jinxue Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Keliang Xie
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiujing Yu
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Department of Health Management Center & Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Castaneda AN, Huda A, Whitaker IBM, Reilly JE, Shelby GS, Bai H, Ni L. Functional labeling of individualized postsynaptic neurons using optogenetics and trans-Tango in Drosophila (FLIPSOT). PLoS Genet 2024; 20:e1011190. [PMID: 38483970 PMCID: PMC10965055 DOI: 10.1371/journal.pgen.1011190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 03/26/2024] [Accepted: 02/20/2024] [Indexed: 03/27/2024] Open
Abstract
A population of neurons interconnected by synapses constitutes a neural circuit, which performs specific functions upon activation. It is essential to identify both anatomical and functional entities of neural circuits to comprehend the components and processes necessary for healthy brain function and the changes that characterize brain disorders. To date, few methods are available to study these two aspects of a neural circuit simultaneously. In this study, we developed FLIPSOT, or functional labeling of individualized postsynaptic neurons using optogenetics and trans-Tango. FLIPSOT uses (1) trans-Tango to access postsynaptic neurons genetically, (2) optogenetic approaches to activate (FLIPSOTa) or inhibit (FLIPSOTi) postsynaptic neurons in a random and sparse manner, and (3) fluorescence markers tagged with optogenetic genes to visualize these neurons. Therefore, FLIPSOT allows using a presynaptic driver to identify the behavioral function of individual postsynaptic neurons. It is readily applied to identify functions of individual postsynaptic neurons and has the potential to be adapted for use in mammalian circuits.
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Affiliation(s)
- Allison N. Castaneda
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Ainul Huda
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Iona B. M. Whitaker
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Julianne E. Reilly
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Grace S. Shelby
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Hua Bai
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
| | - Lina Ni
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
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Yang J, Ni L, Li A, Li M, Ruan S, Xiang D, Zhu Z, Ye L. A novel homozygous splice-site mutation of JK gene leads to Jk(a-b-) phenotype. Transfus Med 2024; 34:39-45. [PMID: 37950522 DOI: 10.1111/tme.13016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/28/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVES This study aimed to investigate the molecular mechanism of the Jk(a-b-) phenotype in a Chinese transfusion patient. BACKGROUND Many different mutation types relating to Jk(a-b-) phenotype have been reported. However, the splice-site mutation is relatively rare and the related functional verification is lacking. MATERIALS AND METHODS In this study, the blood sample was collected from a transfusion patient with the Jk(a-b-) phenotype. Serotyping was performed using routine serological methods. The exons sequences and coding regions of the JK gene were amplified using polymerase chain reaction and directly sequenced. To perform a minigene splicing assay, the intronic mutation sequences were cloned into a pSPL3 splice reporting vector. The splicing reporter minigene assay was performed in HEK 293T cells. RESULTS The Jk(a-b-) phenotype of the blood sample was identified through serological testing. Sequencing results revealed that the sample had a novel homozygous splice-site mutation JK*02N (NM_015865.7: c.663+3A>C). Further analysis, including cDNA sequencing and minigene splicing assay, confirmed that the novel splice-site mutation resulted in exon skipping. Interestingly, different numbers of exons being skipped were obtained by the two methods. CONCLUSION This study revealed a novel homozygous splicing-site mutation associated with the Jk(a-b-) phenotype in Chinese population. Our results emphasise the importance of the in vitro functional method minigene splicing assay, while also acknowledging its potential limitations when compared to cDNA sequencing.
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Affiliation(s)
- Jiaxuan Yang
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Lina Ni
- Department of Blood Transfusion, Weihai Central Hospital, Weihai, China
| | - Aijing Li
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Minghao Li
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Shulin Ruan
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Dong Xiang
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Ziyan Zhu
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Luyi Ye
- Immunohematology Lab, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
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Fu Z, Huda A, Kimbrough IF, Ni L. Using Drosophila Two-Choice Assay to Study Optogenetics in Hands-On Neurobiology Laboratory Activities. J Undergrad Neurosci Educ 2023; 22:A45-A50. [PMID: 38322398 PMCID: PMC10768822 DOI: 10.59390/sdwh9124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/07/2023] [Accepted: 10/06/2023] [Indexed: 02/08/2024]
Abstract
Optogenetics has made a significant impact on neuroscience, allowing activation and inhibition of neural activity with exquisite spatiotemporal precision in response to light. In this lab session, we use fruit flies to help students understand the fundamentals of optogenetics through hands-on activities. The CsChrimson channelrhodopsin, a light-activated cation channel, is expressed in sweet and bitter sensory neurons. Sweet sensory neurons guide animals to identify nutrient-rich food and drive appetitive behaviors, while bitter sensory neurons direct animals to avoid potentially toxic substances and guide aversive behavior. Students use two-choice assays to explore the causality between the stimulation activation of these neurons and the appetitive and avoidance behaviors of the fruit flies. To quantify their observations, students calculate preference indices and use the Student's t-test to analyze their data. After this lab session, students are expected to have a basic understanding of optogenetics, fly genetics, sensory perception, and how these relate to sensory-guided behaviors. They will also learn to conduct, quantify, and analyze two-choice behavioral assays.
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Affiliation(s)
- Zhuo Fu
- School of Neuroscience, Virginia Tech, Blacksburg, VA 24061
| | - Ainul Huda
- School of Neuroscience, Virginia Tech, Blacksburg, VA 24061
| | - Ian F Kimbrough
- School of Neuroscience, Virginia Tech, Blacksburg, VA 24061
- Department of Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, 22903
| | - Lina Ni
- School of Neuroscience, Virginia Tech, Blacksburg, VA 24061
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Ni L, Viner J, Phuong C, Liu SJ, Yee E, Petrofsky M, Kwon DH, Daras M, Brondfield S, Boreta L. Provider Perceptions of a Novel Inpatient Co-Rounding Model Integrating Medical Oncology, Neuro-Oncology, and Radiation Oncology for the Care of Patients with Advanced Cancer. Int J Radiat Oncol Biol Phys 2023; 117:S61. [PMID: 37784538 DOI: 10.1016/j.ijrobp.2023.06.359] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients (pts) with advanced cancer require interdisciplinary care. Although tumor boards are well-established in the outpatient setting, few studies have evaluated interventions for improving consultative care coordination for hospitalized pts with cancer. The purpose of this study was to evaluate a novel inpatient co-rounding model of care in which medical-, neuro-, and radiation-oncology consult teams rounded jointly, with the hypothesis that primary referring team perception of the alignment of the recommendations from these consult services would improve post-implementation. MATERIALS/METHODS An inpatient co-rounding model was implemented in September 2021 for hospitalized pts with solid malignancies at a tertiary medical center. Attending physicians, nurse practitioners, fellows, and residents from oncologic consulting services met virtually twice weekly to discuss pt care. Providers from the two most common primary services for pts with cancer at this hospital (hospital medicine and neurosurgery) were surveyed via institutional email listservs. The survey included Likert-type questions about the quality of inpatient consultation and the alignment of recommendations across three consulting oncological specialty services. The pre-intervention survey was distributed prior to model implementation, and the post-intervention survey was distributed 9 months later. Wilcoxon rank-sum tests were used to compare responses from the pre-and post-intervention surveys. RESULTS At each session, a median of 6 providers attended (range, 4-8 providers), and a median of 6 pts were discussed (range, 4-8 pts). Among 331 providers surveyed, 119 completed the pre-intervention survey (36% response rate), and 34 completed the post-intervention survey (10% response rate). Respondents were 81 (53%) internal medicine attending physicians/hospitalists, 55 (36%) internal medicine resident physicians, 6 (4%) neurosurgery advanced practice providers, 6 (4%) neurosurgery attending physicians, and 5 (3%) neurosurgery resident physicians. When asked to rate agreement with the statement that consultant recommendations from medical-, neuro-, and radiation-oncology were aligned, respondents were significantly more likely to perceive alignment 9 months post-implementation (67% strongly agree) compared to pre-implementation (23% strongly agree, p = 0.0001). There was high satisfaction with the quality of medical-, neuro-, and radiation-oncology consultations at both time points, with no statistical difference pre- vs. post-implementation of the co-rounding model. CONCLUSION A novel inpatient co-rounding model of care was successfully launched between medical-, neuro-, and radiation-oncology. Primary teams perceived greater alignment in recommendations between these consulting services after project implementation. Future directions include evaluating the impact of this co-rounding model on patient outcomes.
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Affiliation(s)
- L Ni
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - J Viner
- University of California San Francisco, Department of Neurology, Division of Neurologic Oncology, San Francisco, CA
| | - C Phuong
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - S J Liu
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - E Yee
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - M Petrofsky
- University of California San Francisco, Department of Medicine, Division of Hematology/Oncology, San Francisco, CA
| | - D H Kwon
- University of California San Francisco, Department of Medicine, Division of Hematology/Oncology, San Francisco, CA
| | - M Daras
- University of California San Francisco, Department of Neurology, Division of Neurologic Oncology, San Francisco, CA
| | - S Brondfield
- University of California San Francisco, Department of Medicine, Division of Hematology/Oncology, San Francisco, CA
| | - L Boreta
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
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Ni L, Phuong C, Yom SS, Chan J. Acute and Late Toxicities in Patients with Collagen Vascular Disease Receiving Curative-Intent Intensity-Modulated Radiotherapy to the Head and Neck Region. Int J Radiat Oncol Biol Phys 2023; 117:e609-e610. [PMID: 37785833 DOI: 10.1016/j.ijrobp.2023.06.1982] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Historically, collagen vascular disease (CVD) was considered at least a relative contraindication to radiotherapy (RT). However, more recent meta-analyses suggest that for patients with certain CVDs such as rheumatoid arthritis (RA), there may not be an increased risk for severe toxicities, while for patients with CVDs such as systemic lupus erythematosus (SLE), dermatomyositis (DM) and scleroderma, there may be as high as a 2- to 4-fold risk for severe toxicities compared to patients without CVD. There are also data to suggest that patients with head and neck cancer (HNC) and comorbid CVD are at especially high risk of severe toxicities from RT. This study evaluated the hypothesis that among patients with HNC treated with curative-intent intensity-modulated radiation therapy (IMRT), patients with SLE or DM were more likely to have had late grade ≥3 toxicity rates compared to patients with other CVDs. MATERIALS/METHODS A total of 23 patients who had HNC with comorbid CVD and received IMRT between 2005-2022 were included. Acute (≤90 days after completion of RT) and late (>90 days) toxicities were retrospectively classified using CTCAE v5.0. Toxicity rates were compared across CVD groups using Chi-squared tests. RESULTS Median follow-up was 56.3 months. The most common CVDs were RA (9 patients, 39%), SLE (4 patients, 17%), and DM (4 patients, 17%). Median total RT dose was 66 Gy (range: 48-70 Gy), in 1.8-2.4 Gy fractions. Nine (39%) patients received concurrent chemotherapy. 14 (61%) patients had mucosal squamous cell carcinoma (SCC), 3 (13%) had cutaneous SCC, 2 (9%) had nasal cavity/paranasal sinus tumors, 2 (9%) had salivary gland tumors, 1 (4%) had cutaneous melanoma, and 1 (4%) had mucosal melanoma. Eight (35%) patients experienced acute grade ≥3 toxicities, and 3 (13%) patients experienced late grade ≥3 toxicities (Table 1). No patients had grade≥4 toxicities. Patients with SLE or DM did not have significantly higher risk of late grade ≥3 toxicities compared to those with other CVDs (25% vs. 7%, p = 0.21). CONCLUSION In this small sample size of patients with HNC and comorbid CVD, definitive or post-operative IMRT was associated with approximately 35% acute and 15% late severe toxicity rates. While SLE/DM were associated with >3-fold late grade ≥3 toxicities, this association needs to be confirmed with larger data sets.
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Affiliation(s)
- L Ni
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - C Phuong
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - S S Yom
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - J Chan
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
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Phuong C, Ni L, Cunha JAM, Yom SS, Hsu ICJ, Chan J. Toxicity and Dosimetric Analysis of Reirradiation of Head and Neck Cancers with High Dose Rate Brachytherapy. Int J Radiat Oncol Biol Phys 2023; 117:e616. [PMID: 37785849 DOI: 10.1016/j.ijrobp.2023.06.1995] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Reirradiation (reRT) of recurrent or second primary head and neck cancers (HNC) after prior curative-intent external beam radiotherapy (EBRT) has historically achieved local control (LC) rates of 40-50% and been associated with high grade toxicity rates estimated at 25-50%. This study evaluated the hypothesis that patients with small reRT target volumes could be selected for high dose rate brachytherapy (HDR-BT) reRT and achieve similar LC without excess toxicity. MATERIALS/METHODS Included were all patients with HNC squamous cell carcinoma treated with HDR-BT after having previously received curative-intent EBRT for primary HNC from 2000-2021. Patients were selected by a multidisciplinary tumor board to be appropriate candidates for HDR-BT reRT without EBRT generally for definitive or adjuvant treatment of small primary tumors without neck nodal metastases. Univariate analysis was performed using the logistic regression model. Survival outcomes were estimated with the Kaplan Meier method. RESULTS Twenty-three patients were evaluated. Median follow up time was 19mo. Median age at time of HDR-BT was 64 years. Thirteen patients (57%) were treated for recurrent HNC, of which 7 were in the oral cavity (OC) and 6 were the oropharynx (OPX). Ten patients (43%) were treated for a second primary HNC, of which 5 were in the OC and 5 were in the OPX. Median time from completion of EBRT to HDR-BT was 41 (IQR 14-73) mo. Within their reRT course, 11 patients (48%) were treated with HDR-BT after resection, 9 patients (39%) received concurrent hyperthermia, and 7 patients (30%) received chemotherapy. HDR-BT regimens included 600cGy x5 (N = 11), 600cGy x6 (N = 6), 450cGy x8 (N = 1), 1500cGy x1 (N = 1),1000cGy x1 (N = 1), 500cGy x8 (N = 1), and 700cGy x5 (N = 1). One patient who was treated with two implants received 450cGy x 3 followed by 475cGy x5. A median of 5 brachytherapy catheters were used. Actuarial 2-year LC and overall survival rate was 68% and 62%, respectively. Of the 17 HDR-BT reRT plans available for review, median (IQR) target volume was 15.8 (10.6-34.9) cc. Median (IQR) target V100% was 90.6 (89.4-90.0)%, V150% was 50.5 (49.7-54.4)%, and V200% was 25.4 (23.8-29.0)%. Median (IQR) target D90% was 30.1 (29.8-35.5) Gy, and median D1cc was 116.4 (100.5-171.4) Gy. The mandible dose [median (IQR)] was D2cc:15.1(9.48-18.9) Gy; D1cc:16.9(11.1-21.3) Gy; and D1%:18.8(13.4-22.7) Gy. Nine of the 23 patients (39%) experienced ≥G3 toxicity including fistula, soft tissue necrosis, osteoradionecrosis, ulcer, hemorrhage, and dysphagia requiring a chronic feeding tube. Target D90% was associated with ≥G3 toxicity (p = 0.045). For D90% greater than the median of 30Gy, 45% ≥G3 toxicity was observed. CONCLUSION This study suggests that HDR-BT for reRT of small recurrent or second primary HNC can provide similar LC without excess high-grade toxicities as compared to historical outcomes with EBRT reRT. Delivery of equivalent doses higher than 30Gy in 5 fractions should be approached with caution.
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Affiliation(s)
- C Phuong
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - L Ni
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - J A M Cunha
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - S S Yom
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - I C J Hsu
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - J Chan
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
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Ni L, Yang H, Wu X, Zhou K, Wang S. The expression and prognostic value of disulfidptosis progress in lung adenocarcinoma. Aging (Albany NY) 2023; 15:7741-7759. [PMID: 37552140 PMCID: PMC10457049 DOI: 10.18632/aging.204938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/18/2023] [Indexed: 08/09/2023]
Abstract
Disulfidptosis is a new cell death model caused by accumulating intracellular disulfides bonding to actin cytoskeleton proteins. This study aimed to investigate the expression and prognostic value of disulfidptosis-related genes (DRGs) in lung adenocarcinoma (LUAD). The data of expression profiles and scRNA-seq were collected from TCGA and GEO databases. The different expressions of DRGs between normal and LUAD tissues were compared. The LASSO analysis and multivariate Cox regression analysis were utilized to develop a DRGs model for the prognosis evaluation in LUAD. The model's predictive accuracy was evaluated with the area under the receiver operating characteristic curve (AUC) and C-index. Survival analysis, univariate and multivariate Cox regression analysis were used to assessing the predictive value of the DRGs model. ScRNA-seq data were analyzed with "Seurat" and "Monocle 2" packages. There were significant differences in 22 DRGs between normal and tumor tissues. A model with five DRGs (ACTB, FLNB, NCKAP1, SLC3A2, SLC7A11) was constructed. The AUC and C-index of the model were significantly higher than that based on clinical parameters. Survival analysis, univariate and multivariate Cox regression analysis demonstrated risk score was an independent prognostic predictor. In the scRNA-seq study, we identified 14 clusters and 11 cell types. Clusters 2, 8, and 13 were annotated into Epithelial cells. SLC7A11 and SLC3A2, NCKAP1 and FLNB, ACTB expressed most abundantly in Epithelial cells, Endothelial cells, Naive CD4 T, respectively. We explored the expression of DRGs in LUAD and constructed a predictive DRGs model, which was stable and reliable for predicting LUAD prognosis.
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Affiliation(s)
- Lina Ni
- Department of Respiratory, Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang 321200, China
| | - Huizhen Yang
- Department of Respiratory, Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang 321200, China
| | - Xiaoyu Wu
- Department of Respiratory, Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang 321200, China
| | - Kejin Zhou
- Department of Respiratory, Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang 321200, China
| | - Sheng Wang
- Department of Respiratory, Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang 321200, China
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Rong ZH, Ni L, Zhang R, Niu S, Li FS, Liu CW. [Research progress on the role of non-coding RNA in the functional regulation of vascular smooth muscle cells]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:535-541. [PMID: 37198127 DOI: 10.3760/cma.j.cn112148-20230310-00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Affiliation(s)
- Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - R Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - S Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - F S Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Shang M, Ni L, Shan X, Cui Y, Hu P, Ji Z, Shen L, Zhang Y, Zhou J, Wang T, Yu Q. MTHFD2 reprograms macrophage polarization by inhibiting PTEN. Cell Rep 2023; 42:112481. [PMID: 37149861 DOI: 10.1016/j.celrep.2023.112481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/27/2023] [Accepted: 04/21/2023] [Indexed: 05/09/2023] Open
Abstract
The one-carbon metabolism enzyme methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is involved in the regulation of tumor oncogenesis and immune cell functions, but whether it can contribute to macrophage polarization remains elusive. Here, we show that MTHFD2 suppresses polarization of interferon-γ-activated macrophages (M(IFN-γ)) but enhances that of interleukin-4-activated macrophages (M(IL-4)) both in vitro and in vivo. Mechanistically, MTHFD2 interacts with phosphatase and tensin homolog (PTEN) to suppress PTEN's phosphatidylinositol 3,4,5-trisphosphate (PIP3) phosphatase activity and enhance downstream Akt activation, independent of the N-terminal mitochondria-targeting signal of MTHFD2. MTHFD2-PTEN interaction is promoted by IL-4 but not IFN-γ. Furthermore, amino acid residues (aa 215-225) of MTHFD2 directly target PTEN catalytic center (aa 118-141). Residue D168 of MTHFD2 is also critical for regulating PTEN's PIP3 phosphatase activity by affecting MTHFD2-PTEN interaction. Our study suggests a non-metabolic function of MTHFD2 by which MTHFD2 inhibits PTEN activity, orchestrates macrophage polarization, and alters macrophage-mediated immune responses.
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Affiliation(s)
- Man Shang
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Lina Ni
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Xiao Shan
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Yan Cui
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Penghui Hu
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Zemin Ji
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Long Shen
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Yanan Zhang
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Jinxue Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Ting Wang
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin 300070, China.
| | - Qiujing Yu
- Tianjin Institute of Immunology, Division of Infectious Disease, Second Hospital of Tianjin Medical University, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, School of Basic Medical Sciences, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, Tianjin Medical University, Tianjin, 300070, China.
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Li Y, An C, Xue P, Ni L, Yu X, Qu J, Yao Y, Yu C. Clinical Application of Thromboelastography in Patients With Severe Fever With Thrombocytopenia Syndrome. Clin Appl Thromb Hemost 2023; 29:10760296231180170. [PMID: 37321608 DOI: 10.1177/10760296231180170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023] Open
Abstract
AIM To investigate the clinical application of thromboelastography (TEG) in severe fever with thrombocytopenia syndrome (SFTS). METHODS One hundred and fifty-seven patients with SFTS were included in the study. The participants were distributed into 3 groups; A, B, and C. And 103 patients in group A met the clinical criteria as they exhibited slight liver and kidney dysfunction. Group B consisted of 54 patients with SFTS who were critically ill while group C was a healthy control group with 58 participants. RESULTS Patients with SFTS exhibited lower coagulation than the healthy participants. Group B patients exhibited significantly lower coagulation compared to group A. There was no significant difference in platelet count and fibrinogen content between patients in group A and group B, but platelet aggregation function and fibrinogen activity were significantly lower in group B patients. CONCLUSION Our results suggest that it is risky to solely rely on platelet count and the fibrinogen in SFTS. Monitoring of TEG and other coagulation indexes should be emphasized.
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Affiliation(s)
- Yingbo Li
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Changjuan An
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Peng Xue
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Lina Ni
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Xia Yu
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Jiangli Qu
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Yingjie Yao
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
| | - Chengyong Yu
- Department of Blood Transfusion, Central Hospital of Weihai, Weihai, Shandong Province, China
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Omelchenko AA, Bai H, Hussain S, Tyrrell JJ, Klein M, Ni L. TACI: An ImageJ Plugin for 3D Calcium Imaging Analysis. J Vis Exp 2022:10.3791/64953. [PMID: 36591984 PMCID: PMC10388512 DOI: 10.3791/64953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Research in neuroscience has evolved to use complex imaging and computational tools to extract comprehensive information from data sets. Calcium imaging is a widely used technique that requires sophisticated software to obtain reliable results, but many laboratories struggle to adopt computational methods when updating protocols to meet modern standards. Difficulties arise due to a lack of programming knowledge and paywalls for software. In addition, cells of interest display movements in all directions during calcium imaging. Many approaches have been developed to correct the motion in the lateral (x/y) direction. This paper describes a workflow using a new ImageJ plugin, TrackMate Analysis of Calcium Imaging (TACI), to examine motion on the z-axis in 3D calcium imaging. This software identifies the maximum fluorescence value from all the z-positions a neuron appears in and uses it to represent the neuron's intensity at the corresponding t-position. Therefore, this tool can separate neurons overlapping in the lateral (x/y) direction but appearing on distinct z-planes. As an ImageJ plugin, TACI is a user-friendly, open-source computational tool for 3D calcium imaging analysis. We validated this workflow using fly larval thermosensitive neurons that displayed movements in all directions during temperature fluctuation and a 3D calcium imaging dataset acquired from the fly brain.
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Affiliation(s)
- Alisa A Omelchenko
- School of Neuroscience, Virginia Polytechnic Institute and State University; CMU-Pitt Joint Computational Biology, School of Medicine, University of Pittsburgh
| | - Hua Bai
- School of Neuroscience, Virginia Polytechnic Institute and State University
| | - Sibtain Hussain
- School of Neuroscience, Virginia Polytechnic Institute and State University
| | - Jordan J Tyrrell
- School of Neuroscience, Virginia Polytechnic Institute and State University; Eastern Virginia Medical School
| | | | - Lina Ni
- School of Neuroscience, Virginia Polytechnic Institute and State University;
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Ni L, Phuong C, Chen J, Chen W, Daras M, Raleigh D, Nakamura J, Boreta L, Sneed P, Braunstein S. Volumetric Response of Brain Metastases in EGFR-Positive NSCLC Treated with CNS-Penetrant Tyrosine Kinase Inhibitors with or without Radiation Therapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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15
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Chen J, Friesner I, Chang C, Ni L, Braunstein S, Boreta L, Hong J. Natural Language Processing of Symptoms Preceding Diagnosis and Palliative Radiotherapy for Bone Metastases. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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16
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Shan X, Hu P, Ni L, Shen L, Zhang Y, Ji Z, Cui Y, Guo M, Wang H, Ran L, Yang K, Wang T, Wang L, Chen B, Yao Z, Wu Y, Yu Q. Serine metabolism orchestrates macrophage polarization by regulating the IGF1-p38 axis. Cell Mol Immunol 2022; 19:1263-1278. [PMID: 36180780 PMCID: PMC9622887 DOI: 10.1038/s41423-022-00925-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 09/05/2022] [Indexed: 01/27/2023] Open
Abstract
Serine metabolism is reportedly involved in immune cell functions, but whether and how serine metabolism regulates macrophage polarization remain largely unknown. Here, we show that suppressing serine metabolism, either by inhibiting the activity of the key enzyme phosphoglycerate dehydrogenase in the serine biosynthesis pathway or by exogenous serine and glycine restriction, robustly enhances the polarization of interferon-γ-activated macrophages (M(IFN-γ)) but suppresses that of interleukin-4-activated macrophages (M(IL-4)) both in vitro and in vivo. Mechanistically, serine metabolism deficiency increases the expression of IGF1 by reducing the promoter abundance of S-adenosyl methionine-dependent histone H3 lysine 27 trimethylation. IGF1 then activates the p38-dependent JAK-STAT1 axis to promote M(IFN-γ) polarization and suppress STAT6-mediated M(IL-4) activation. This study reveals a new mechanism by which serine metabolism orchestrates macrophage polarization and suggests the manipulation of serine metabolism as a therapeutic strategy for macrophage-mediated immune diseases.
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Affiliation(s)
- Xiao Shan
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Penghui Hu
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Lina Ni
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Long Shen
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Yanan Zhang
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Zemin Ji
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Yan Cui
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Meihua Guo
- Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Haoan Wang
- Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Liyuan Ran
- Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, 116044, Liaoning, China
- Shandong Provincial Hospital, School of Laboratory Animal and Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China
| | - Kun Yang
- Shandong Provincial Hospital, School of Laboratory Animal and Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China
| | - Ting Wang
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Lei Wang
- Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Bin Chen
- Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China
| | - Zhi Yao
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
| | - Yingjie Wu
- Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, 116044, Liaoning, China.
- Shandong Provincial Hospital, School of Laboratory Animal and Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China.
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, 10010, USA.
| | - Qiujing Yu
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory of Inflammation Biology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University; Division of Infectious Disease, Second Hospital of Tianjin Medical University, Tianjin, 300070, China.
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Wen Z, Huang G, Lai Y, Xiao L, Peng X, Liu K, Zhang C, Chen X, Li R, Li X, Lai Y, Ni L. Diagnostic panel of serum miR-125b-5p, miR-182-5p, and miR-200c-3p as non-invasive biomarkers for urothelial bladder cancer. Clin Transl Oncol 2022; 24:909-918. [PMID: 35028929 DOI: 10.1007/s12094-021-02741-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/23/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE This study aimed to identify a diagnostic panel of serum microRNAs (miRNAs) for the early detection of bladder cancer (BC). METHODS Serum samples were collected from 112 BC patients and 112 normal controls (NCs). A three-stage selection was conducted to identify differentially expressed miRNAs as candidates to construct the diagnostic panel. Further, to explore their potential roles in urothelial BC, bioinformatics analyses, including target genes prediction and functional annotation, were used. RESULTS Six downregulated miRNAs (miR-1-3p, miR-30a-5p, miR-100-5p, miR-125b-5p, miR-143-3p, and miR-200c-3p) and one upregulated, miR-182-5p, in BC patients' serum were detected compared to NCs and were selected to establish the diagnostic panel. Based on a backward stepwise logistic regression analysis, miR-125b-5p, miR-182-5p, and miR-200c-3p comprehended the diagnostic panel [area under the curve (AUC) = 0.959, sensitivity = 91.67%, specificity = 92.5%]. CONCLUSION The panel of three miRNAs had an excellent diagnostic capability, representing a potential non-invasive method for early BC detection.
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Affiliation(s)
- Z Wen
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - G Huang
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - Y Lai
- Department of Urology, People's Hospital of Longhua, Shenzhen, Guangdong, 518109, People's Republic of China
| | - L Xiao
- Department of Urology, Shenzhen University General Hospital, Shenzhen, Guangdong, 518109, People's Republic of China
| | - X Peng
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - K Liu
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
- Anhui Medical University, Hefei, Anhui, 230032, People's Republic of China
| | - C Zhang
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - X Chen
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - R Li
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
- Anhui Medical University, Hefei, Anhui, 230032, People's Republic of China
| | - X Li
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - Y Lai
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
| | - L Ni
- Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People's Republic of China
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18
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Huda A, Omelchenko AA, Vaden TJ, Castaneda AN, Ni L. Responses of different Drosophila species to temperature changes. J Exp Biol 2022; 225:275567. [PMID: 35481475 DOI: 10.1242/jeb.243708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/25/2022] [Indexed: 11/20/2022]
Abstract
Temperature is a critical environmental variable that affects the distribution, survival, and reproduction of most animals. Although temperature receptors have been identified in many animals, how these receptors respond to temperature is still unclear. Here, we describe an automated tracking method for studying the thermotactic behaviors of Drosophila larvae and adults. We build optimal experimental setups to capture behavioral recordings and analyze them using free software, Fiji and TrackMate, which do not require programming knowledge. Then, the adult thermotactic two-choice assay is applied to examine the movement and temperature preferences of nine Drosophila species. The ability or inclination to move varies among these species and at different temperatures. Distinct species prefer various ranges of temperatures. Wild-type D. melanogaster flies avoid the warmer temperature in the warm avoidance assay and the cooler temperature in the cool avoidance assay. Conversely, D. bipectinata and D. yakuba do not avoid warm or cool temperatures in the respective assays, and D. biarmipes and D. mojavensis do not avoid the warm temperature in the warm avoidance assay. These results demonstrate that Drosophila species have different mobilities and temperature preferences, which will benefit further research in exploring molecular mechanisms of temperature responsiveness.
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Affiliation(s)
- Ainul Huda
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Alisa A Omelchenko
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Thomas J Vaden
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Allison N Castaneda
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Lina Ni
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
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Lu J, He J, Xia H, Yang D, He W, Zhu X, Yan Y, Liu Z, Liu T, Yang J, Tan S, Jiang J, Hou X, Gao H, Ni L. Chemotherapy enhanced by ultrasonic cavitation in prostate cancer by opening the blood-prostate barrier. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00497-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Omelchenko AA, Bai H, Spina EC, Tyrrell JJ, Wilbourne JT, Ni L. Cool and warm ionotropic receptors control multiple thermotaxes in Drosophila larvae. Front Mol Neurosci 2022; 15:1023492. [PMID: 36452407 PMCID: PMC9701816 DOI: 10.3389/fnmol.2022.1023492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/25/2022] [Indexed: 11/15/2022] Open
Abstract
Animals are continuously confronted with different rates of temperature variation. The mechanism underlying how temperature-sensing systems detect and respond to fast and slow temperature changes is not fully understood in fly larvae. Here, we applied two-choice behavioral assays to mimic fast temperature variations and a gradient assay to model slow temperature changes. Previous research indicates that Rhodopsin 1 (Rh1) and its phospholipase C (PLC) cascade regulate fast and slow temperature responses. We focused on the ionotropic receptors (IRs) expressed in dorsal organ ganglions (DOG), in which dorsal organ cool-activated cells (DOCCs) and warm-activated cells (DOWCs) rely on IR-formed cool and warm receptors to respond to temperature changes. In two-choice assays, both cool and warm IRs are sufficient for selecting 18°C between 18°C and 25°C but neither function in cool preferences between 25°C and 32°C. The Rh1 pathway, on the other hand, contributes to choosing preferred temperatures in both assays. In a gradient assay, cool and warm IR receptors exert opposite effects to guide animals to ∼25°C. Cool IRs drive animals to avoid cool temperatures, whereas warm IRs guide them to leave warm regions. The Rh1 cascade and warm IRs may function in the same pathway to drive warm avoidance in gradient assays. Moreover, IR92a is not expressed in temperature-responsive neurons but regulates the activation of DOWCs and the deactivation of DOCCs. Together with previous studies, we conclude that multiple thermosensory systems, in various collaborative ways, help larvae to make their optimal choices in response to different rates of temperature change.
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21
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Sinha S, Chew J, Ni L, Gottschalk A, Braunstein S. Factors Associated With Salvage Amputation and Radical Surgery in Recurrent Sarcoma: A Single Institution Retrospective Review. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Lv J, Zhao Q, Ni L, Yang Y, Xu H. Clinical characteristics and outcomes in young patients with myocardial infarction. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1111] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Young people hold a stable or increasing percentage of patients with acute myocardial infarction in many countries. However, data on clinical characteristics and outcomes in young patients are lacking.
Purpose
To compare clinical characteristics and outcomes between patients aged ≤45 years and those aged >45 years with acute myocardial infarction.
Methods
A total of 24125 patients with acute myocardial infarction between January 2013 and September 2014 from China Acute Myocardial Infarction (CAMI) registry were included in this study. Clinical characteristics, in-hospital and 2-year outcomes were compared between patients aged ≤45 years (young) and those aged >45 years (older). Gender disparity in prognosis of myocardial infarction was analyzed among young patients.
Results
Of 24125 patients, 2042 (8.5%, 116 female) were aged ≤45 years. Compared with patients aged >45 years, young patients were more often male, current smokers, having medical history of hyperlipidemia and family history of premature coronary artery disease. Young patients were significantly more likely to have clear trigger factor, present with persistent chest pain and suffer ST-segment elevation myocardial infarction. Symptom onset to admission time was shorter in patients aged ≤45 years. For patients undergoing emergency coronary angiography, those aged ≤45 years were more likely to suffer left anterior descending coronary artery related myocardial infarction. Young patients were significantly more likely to receive percutaneous coronary intervention and other medications at discharge, including dual antiplatelet therapy, statins, angiotensin converting enzyme inhibitors or angiotensin II receptor blockers and β blockers. Compared with patients aged >45 years, young patients experienced significantly lower in-hospital and 2-year mortality and major adverse cardiac and cerebrovascular events (MACCE, a composite of death, reinfarction and stroke) rates (Table 1). Among young patients, women experienced higher in-hospital mortality and MACCE rates than men (Table 2). Women who survived at discharge experienced significantly higher 2-year mortality (1.4% vs 3.8%, Log-rank P=0.0412, Table 2).
Conclusions
Compared with the older patients, young patients were more likely to present with typical symptoms and receive guideline-recommended medications. Clinical outcomes of patients aged ≤45 years were significantly better than older patients. However, our results showed significant gender disparity in both short- and long-term outcomes of young patients. More efforts are needed to improve prognosis in young patients with acute myocardial infarction.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The Twelfth Five-Year Planning Project of the Scientific and Technological Department of China
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Affiliation(s)
- J Lv
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Q Zhao
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - L Ni
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y Yang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - H Xu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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23
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Niu S, Ma BT, Zhang R, Rong ZH, Ni L, Di X, Liu CW. [Treatment strategies and research progress of acute ilio-femoral deep vein thrombosis]. Zhonghua Wai Ke Za Zhi 2021; 59:799-803. [PMID: 34404180 DOI: 10.3760/cma.j.cn112139-20210424-00183] [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
In the past,treatment of acute ilio-femoral deep vein thrombosis (IFDVT) was mainly based on anticoagulation alone,but 30%-50% of patients will develop post-thrombotic syndrome,causing a serious medical burden.Thrombus removal technology such as catheter-directed thrombolysis and percutaneous mechanical thrombectomy can effectively remove blood clots and compensate for the deficiencies of simple anticoagulation,which is expected to improve the prognosis of such disease,but the current evidence is insufficient,and other treatments such as filter implantation and compression therapy are also controversial.This article summarizes the treatment strategies and the latest progress of acute IFDVT,hoping to help the treatment of this type of disease.
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Affiliation(s)
- S Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - B T Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - R Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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24
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Shen L, Shan X, Hu P, Zhang Y, Ji Z, Ni L, Yuan Y, Zheng H, Wang T, Yu Q. In vitro and in vivo evaluation of virus-induced innate immunity in mouse. STAR Protoc 2021; 2:100708. [PMID: 34386779 PMCID: PMC8346690 DOI: 10.1016/j.xpro.2021.100708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Innate immunity is the first line of host defense against viral infection. As one of the innate immune cell types, antigen-presenting cells play an important role in the process of antiviral immunity. This protocol describes the analysis of innate immunity induced by vesicular stomatitis virus infection of peritoneal macrophages in vitro and in vivo detection of IFN-β production and lung injury. For complete details on the use and execution of this protocol, please refer to Shen et al. (2021). Detailed protocol for VSV virus amplification and titer detection Fast and efficient collection of peritoneal macrophages from mice Analysis of in vitro innate immunity induced by VSV infection of peritoneal macrophages In vivo system to model VSV infection induced IFN-β production and lung injury
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Affiliation(s)
- Long Shen
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Xiao Shan
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Penghui Hu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yanan Zhang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Zemin Ji
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Lina Ni
- Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yukang Yuan
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Hui Zheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Ting Wang
- Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.,The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Qiujing Yu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.,Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.,The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
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25
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Shen L, Hu P, Zhang Y, Ji Z, Shan X, Ni L, Ning N, Wang J, Tian H, Shui G, Yuan Y, Li G, Zheng H, Yang XP, Huang D, Feng X, Li MJ, Liu Z, Wang T, Yu Q. Serine metabolism antagonizes antiviral innate immunity by preventing ATP6V0d2-mediated YAP lysosomal degradation. Cell Metab 2021; 33:971-987.e6. [PMID: 33798471 DOI: 10.1016/j.cmet.2021.03.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/02/2021] [Accepted: 03/05/2021] [Indexed: 01/08/2023]
Abstract
Serine metabolism promotes tumor oncogenesis and regulates immune cell functions, but whether it also contributes to antiviral innate immunity is unknown. Here, we demonstrate that virus-infected macrophages display decreased expression of serine synthesis pathway (SSP) enzymes. Suppressing the SSP key enzyme phosphoglycerate dehydrogenase (PHGDH) by genetic approaches or by treatment with the pharmaceutical inhibitor CBR-5884 and by exogenous serine restriction enhanced IFN-β-mediated antiviral innate immunity in vitro and in vivo. Mechanistic experiments showed that virus infection or serine metabolism deficiency increased the expression of the V-ATPase subunit ATP6V0d2 by inhibiting S-adenosyl methionine-dependent H3K27me3 occupancy at the promoter. ATP6V0d2 promoted YAP lysosomal degradation to relieve YAP-mediated blockade of the TBK1-IRF3 axis and, thus, enhance IFN-β production. These findings implicate critical functions of PHGDH and the key immunometabolite serine in blunting antiviral innate immunity and also suggest manipulation of serine metabolism as a therapeutic strategy against virus infection.
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Affiliation(s)
- Long Shen
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Penghui Hu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yanan Zhang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Zemin Ji
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Xiao Shan
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Lina Ni
- Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Na Ning
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jing Wang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - He Tian
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yukang Yuan
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Guoli Li
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Hui Zheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Xiang-Ping Yang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dandan Huang
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Xiangling Feng
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Mulin Jun Li
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Zhe Liu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Ting Wang
- Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.
| | - Qiujing Yu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.
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26
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Tyrrell JJ, Wilbourne JT, Omelchenko AA, Yoon J, Ni L. Ionotropic Receptor-dependent cool cells control the transition of temperature preference in Drosophila larvae. PLoS Genet 2021; 17:e1009499. [PMID: 33826603 PMCID: PMC8055001 DOI: 10.1371/journal.pgen.1009499] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 04/19/2021] [Accepted: 03/19/2021] [Indexed: 11/19/2022] Open
Abstract
Temperature sensation guides animals to avoid temperature extremes and to seek their optimal temperatures. The larval stage of Drosophila development has a dramatic effect on temperature preference. While early-stage Drosophila larvae pursue a warm temperature, late-stage larvae seek a significantly lower temperature. Previous studies suggest that this transition depends on multiple rhodopsins at the late larval stage. Here, we show that early-stage larvae, in which dorsal organ cool cells (DOCCs) are functionally blocked, exhibit similar cool preference to that of wild type late-stage larvae. The molecular thermoreceptors in DOCCs are formed by three members of the Ionotropic Receptor (IR) family, IR21a, IR93a, and IR25a. Early-stage larvae of each Ir mutant pursue a cool temperature, similar to that of wild type late-stage larvae. At the late larval stage, DOCCs express decreased IR proteins and exhibit reduced cool responses. Importantly, late-stage larvae that overexpress IR21a, IR93a, and IR25a in DOCCs exhibit similar warm preference to that of wild type early-stage larvae. These data suggest that IR21a, IR93a, and IR25a in DOCCs navigate early-stage larvae to avoid cool temperatures and the reduction of these IR proteins in DOCCs results in animals remaining in cool regions during the late larval stage. Together with previous studies, we conclude that multiple temperature-sensing systems are regulated for the transition of temperature preference in fruit fly larvae. Animals depend on their temperature-sensing systems to avoid noxious temperature extremes and to seek optimal temperatures to survive, mate, and reproduce. Some animals pursue different optimal temperatures during development. We use fruit flies as a model to investigate how temperature-sensing systems are modulated to guide animals to distinct optimal temperatures during development. While early-stage fruit fly larvae pursue a warm temperature, late-stage larvae seek a lower temperature. Previous studies find that this transition depends on multiple rhodopsin molecules. In this study, we find an additional mechanism that also contributes to this transition. At the early larval stage, a set of cool-sensing cells express a high level of cool responsive molecules, respond strongly to low temperatures, and drive animals to avoid cool regions. At the late larval stage, these cool-sensing cells become less sensitive to low temperatures due to the decreased expression of cool responsive molecules and, thus, animals remain in cool regions. Together with previous studies, we conclude that multiple temperature-sensing systems are regulated for the transition of temperature preference in fruit fly larvae.
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Affiliation(s)
- Jordan J. Tyrrell
- School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Jackson T. Wilbourne
- School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Alisa A. Omelchenko
- School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Jin Yoon
- School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Lina Ni
- School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States of America
- * E-mail:
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27
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Qian J, Wang M, You H, Luo J, Li S, Chen S, Chen Y, Li X, Wang K, Zhang W, Yuan L, Ni L, Chen J. POS-045 EARLY RENAL REPLACEMENT THERAPY MAY REDUCE THE ALL-CAUSE MORTALITY OF SEVERE COVID-19. Kidney Int Rep 2021. [PMCID: PMC8049697 DOI: 10.1016/j.ekir.2021.03.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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28
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Abstract
Ionotropic receptors (IRs) are a highly divergent subfamily of ionotropic glutamate receptors (iGluR) and are conserved across Protostomia, a major branch of the animal kingdom that encompasses both Ecdysozoa and Lophothrochozoa. They are broadly expressed in peripheral sensory systems, concentrated in sensory dendrites, and function in chemosensation, thermosensation, and hygrosensation. As iGluRs, four IR subunits form a functional ion channel to detect environmental stimuli. Most IR receptors comprise individual stimulus-specific tuning receptors and one or two broadly expressed coreceptors. This review summarizes the discoveries of the structure of IR complexes and the expression and function of each IR, as well as discusses the future direction for IR studies.
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Affiliation(s)
- Lina Ni
- School of Neuroscience, Virginia Tech, Blacksburg, VA, United States
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29
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Ni L. Genetic Transsynaptic Techniques for Mapping Neural Circuits in Drosophila. Front Neural Circuits 2021; 15:749586. [PMID: 34675781 PMCID: PMC8524129 DOI: 10.3389/fncir.2021.749586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/13/2021] [Indexed: 11/23/2022] Open
Abstract
A neural circuit is composed of a population of neurons that are interconnected by synapses and carry out a specific function when activated. It is the structural framework for all brain functions. Its impairments often cause diseases in the nervous system. To understand computations and functions in a brain circuit, it is of crucial importance to identify how neurons in this circuit are connected. Genetic transsynaptic techniques provide opportunities to efficiently answer this question. These techniques label synapses or across synapses to unbiasedly label synaptic partners. They allow for mapping neural circuits with high reproducibility and throughput, as well as provide genetic access to synaptically connected neurons that enables visualization and manipulation of these neurons simultaneously. This review focuses on three recently developed Drosophila genetic transsynaptic tools for detecting chemical synapses, highlights their advantages and potential pitfalls, and discusses the future development needs of these techniques.
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30
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Liu HL, Liu XG, Tian YM, Ni L, Zheng DX. [Clinical study on the accuracy of occlusal contacts on digital model]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:737-742. [PMID: 33045784 DOI: 10.3760/cma.j.cn112144-20200506-00244] [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 explore the accuracy of occlusal contacts on digital model made by intraoral scanner. Methods: Twenty healthy subjects [6 males, 14 females, (24.4±1.4) years old] with intact dentition were randomly recruited from postgraduate students in Capital Medical University School of Stomatology who volunteered to participate in this study. For each participant, the 2nd and 3rd quadrant of natural dentition was scanned. A diagnostic test design was performed. The occlusal contacts of the maximal intercuspal position (MIP) were extracted with the transillumination of silicone interocclusal records, and the extraction threshold was set as ≤50 μm. Intraoral scanning system was used to scan in MIP and generate occlusal contacts on digital model. Five groups were designed as test groups according to included tooth position: group 1 (buccal scanning ranged from tooth 21 to 23), group 2 (buccal scanning ranged from tooth 23 to 26), group 3 (buccal scanning ranged from tooth 24 to 26), group 4 (buccal scanning ranged from tooth 25 to 26), group 5 (buccal scanning ranged from tooth 21 to 26). Five groups occlusal contacts on digital model were generated respectively. According to the relevant literature, the upper occlusal surface was divided into 28 partitions, and the accuracy of occlusal contacts on digital model was calculated with the transillumination of silicone interocclusal records as the reference standard. Subgroup analysis was performed according to anterior teeth area, premolars area and molars area. Results: The accuracy of occlusal contacts on digital models of the half dentition in five buccal scanning positions were: group 1 (86.8%), group 2 (92.0%), group 3 (90.7%), group 4 (91.1%), group 5 (90.4%), and the accuracy of occlusal contacts in group 1 was significantly lower than those in the other four groups (P<0.05). The accuracy of anterior teeth area were 85.6%-93.9%; the accuracy of premolar area were 92.5%-94.4%; the accuracy of molar area were 77.3%-93.6%, group 1 was significantly lower than those in the group 4 in molars area (P<0.05), the accuracy of anterior area was statistically less than premolars area and molars area in group 1 (P<0.05). There was no statistical difference in pairwise comparison between the three sections (P>0.05). Conclusions: The digital models scanned intraoral methods provide accurate, quantitative measures of occlusal contacts when transillumination contacts are the reference standard.
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Affiliation(s)
- H L Liu
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - X G Liu
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Y M Tian
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - L Ni
- Medical Research & Biometrics Center, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - D X Zheng
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
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31
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Sarraf SA, Sideris DP, Giagtzoglou N, Ni L, Kankel MW, Sen A, Bochicchio LE, Huang CH, Nussenzweig SC, Worley SH, Morton PD, Artavanis-Tsakonas S, Youle RJ, Pickrell AM. PINK1/Parkin Influences Cell Cycle by Sequestering TBK1 at Damaged Mitochondria, Inhibiting Mitosis. Cell Rep 2020; 29:225-235.e5. [PMID: 31577952 PMCID: PMC6880866 DOI: 10.1016/j.celrep.2019.08.085] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 05/13/2019] [Accepted: 08/27/2019] [Indexed: 12/21/2022] Open
Abstract
PINK1 and Parkin are established mediators of mitophagy, the selective removal of damaged mitochondria by autophagy. PINK1 and Parkin have been proposed to act as tumor suppressors, as loss-of-function mutations are correlated with enhanced tumorigenesis. However, it is unclear how PINK1 and Parkin act in coordination during mitophagy to influence the cell cycle. Here we show that PINK1 and Parkin genetically interact with proteins involved in cell cycle regulation, and loss of PINK1 and Parkin accelerates cell growth. PINK1- and Parkin-mediated activation of TBK1 at the mitochondria during mitophagy leads to a block in mitosis due to the sequestration of TBK1 from its physiological role at centrosomes during mitosis. Our study supports a diverse role for the far-reaching, regulatory effects of mitochondrial quality control in cellular homeostasis and demonstrates that the PINK1/Parkin pathway genetically interacts with the cell cycle, providing a framework for understanding the molecular basis linking PINK1 and Parkin to mitosis. Sarraf et al. use mouse and fly genetics to discover that PINK1 and Parkin influence cell cycle progression. Mitophagy and mitosis independently activate TBK1 at damaged mitochondria and centrosomes, respectively, influencing whether the cell will address mitochondrial quality control or progress with proliferation.
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Affiliation(s)
- Shireen A Sarraf
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Dionisia P Sideris
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | | | - Lina Ni
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Mark W Kankel
- Neuromuscular & Movement Disorders, Biogen, Inc., Cambridge, MA 02142, USA
| | - Anindya Sen
- Pathway Discovery Laboratory, Biogen, Inc., Cambridge, MA 02142, USA
| | - Lauren E Bochicchio
- Translational Biology, Medicine, and Health Graduate Program, Virginia Polytechnic Institute and State University, Roanoke, VA 24016, USA
| | - Chiu-Hui Huang
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Samuel C Nussenzweig
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Stuart H Worley
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Paul D Morton
- Department of Biomedical Sciences and Pathobiology, College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Spyros Artavanis-Tsakonas
- Pathway Discovery Laboratory, Biogen, Inc., Cambridge, MA 02142, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Richard J Youle
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Alicia M Pickrell
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
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Gu X, Gao Y, Yan Y, Marks M, Zhu L, Lu H, Guan Z, Shi M, Ni L, Peng R, Zhao W, Wu J, Qi T, Lu S, Qian Y, Gong W, Zhou P. The importance of proper and prompt treatment of ocular syphilis: a lesson from permanent vision loss in 52 eyes. J Eur Acad Dermatol Venereol 2020; 34:1569-1578. [PMID: 32163642 PMCID: PMC7496700 DOI: 10.1111/jdv.16347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 02/25/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Ocular involvement can occur at any stage of syphilis. Prompt diagnosis and proper treatment of ocular syphilis are vital to avoid long-term consequences. OBJECTIVES To describe the risk factors for ocular syphilis and clinical features of blindness caused by syphilis. METHODS We report risk factors for ocular syphilis amongst patients seen at the Shanghai Skin Disease Hospital between October 2009 and October 2017. We identify patients with ocular syphilis resulting in blindness and report the clinical characteristics, laboratory findings and treatment outcomes of these patients. RESULTS A total of 8310 new cases of syphilis were seen, of which 213 patients had ocular disease and 50 patients had blindness due to syphilis. Increasing age and higher RPR titres were associated with ocular involvement but there was no association with HIV status. Blindness in syphilis was restricted predominantly to patients with optic nerve involvement and not patients with isolated uveitis. Fifty patients (and a total of 67 eyes) met the WHO definition of blindness prior to treatment for syphilis. At the end of follow-up, vision had improved in 24 of 67 eyes (35.8%) after treatment. Successful treatment of uveitis was associated with the best improvement in visual acuity, whilst patient with underlying optic atrophy prior to treatment had the worst visual outcome. CONCLUSIONS Ocular involvement is an important manifestation of syphilis which may result in blindness. Our data demonstrate outcomes for ocular syphilis are poor if detected late; early recognition and diagnosis is therefore vital to avoid permanent visual loss.
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Affiliation(s)
- X. Gu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Gao
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Yan
- Department of OphthalmologyRenji HospitalSchool of MedicineJiaotong UniversityShanghaiChina
| | - M. Marks
- Department of Clinical ResearchLondon School of Hygiene & Tropical MedicineLondonUK
| | - L. Zhu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - H. Lu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Z. Guan
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - M. Shi
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - L. Ni
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - R. Peng
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - W. Zhao
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - J. Wu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - T. Qi
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - S. Lu
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Y. Qian
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - W. Gong
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - P. Zhou
- Sexually Transmitted Disease InstituteShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
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Meng A, Anderson K, Nelson C, Kirby B, Ni L, Chuang SM, Kearney B, Mathias A. SAT0149 EXPOSURE-RESPONSE RELATIONSHIPS FOR EFFICACY AND SAFETY OF FILGOTINIB AND ITS METABOLITE GS-829845 IN SUBJECTS WITH RHEUMATOID ARTHRITIS BASED ON PHASE 2 AND PHASE 3 STUDIES. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Filgotinib is an orally administered small molecule that provides selective inhibition of JAK1, a signaling molecule that helps drive inflammatory pathways underlying rheumatoid arthritis (RA).Objectives:Exposure-response (ER) analyses were performed for efficacy following completion of Phase 2 studies over a wide range of doses to support evaluation of 200mg and 100 mg once daily in Phase 3 studies. ER analyses were subsequently performed by using Phase 3 efficacy data to support selection of the proposed registrational dose. ER analyses for safety based on pooled Phase 2 and Phase 3 studies were conducted to examine the safety of evaluated doses.Methods:Population PK analyses were conducted to estimate plasma exposures of filgotinib and GS-829845 (major circulating active metabolite of filgotinib) in both Phase 2 (DARWIN 1 and DARWIN 2) and Phase 3 studies (FINCH 1, FINCH 2, and FINCH 3) encompassing a dose range of 25 to 100 mg twice daily and 50 to 200 mg once daily. As both filgotinib and GS-829845 contribute to efficacy via JAK1 inhibition, their exposures were combined into single parameters, AUCeff and Ctau-eff (effective area under the curve and effective concentration at trough, by accounting for relative inhibition potency and molecular weight) in the ER analyses for various efficacy endpoints (e.g ACR20/50/70 responses) at Week 12 and Week 24. The ER analyses for safety endpoints (the 5 most frequent treatment-emergent adverse events [TEAEs] and Grade 3 or 4 laboratory abnormalities, serious TEAEs, and serious infections) were performed separately for filgotinib and GS-829845 exposures to characterize the individual safety profile of each analyte. The 5 evaluated TEAEs were nausea, nasopharyngitis, upper respiratory tract infection, headache, and hypertension; the 5 Grade 3/4 laboratory abnormalities included lymphocytes decrease, glucose increase, phosphate decrease, triacylglycerol lipase increase, and creatine kinase increase.Results:In the ER analyses for efficacy based on Phase 2 studies, high response rates were demonstrated in ACR20/50/70 across all octile groups in subjects with RA receiving filgotinib and the ER supported further evaluation of both 200 mg and 100 mg once daily doses in Phase 3 clinical studies. Similarly, ER relationships based on pooled Phase 3 studies across various endpoints (e.g ACR20/50/70) consistently revealed high response rates across the exposure range for both the filgotinib 200 mg and 100 mg doses. A trend of increasing response with increasing exposure was observed over the exposure range for multiple secondary efficacy endpoints including ACR50 and ACR70 with the effective exposures at filgotinib 200 mg primarily residing on the plateau of the ER curves.Filgotinib was generally well-tolerated with no individual TEAE or Grade 3 or 4 laboratory abnormality > 5% in the filgotinib 200 mg once daily group up to Week 12. No relationships were observed between filgotinib and GS-829845 exposures (AUC0-24 and Cmax) and the most frequent TEAEs, Grade 3/4 laboratory abnormalities, serious TEAEs, or serious infections up to Week 52.Conclusion:ER analyses demonstrate that both the 200 mg and 100 mg once daily filgotinib doses are efficacious in subjects with moderately to severely active RA without clear dose-dependent effects on safety. The trend towards greater efficacy with higher exposures for some secondary endpoints (ACR50 and ACR70) and a lack of exposure-safety relationship supports a dose of 200 mg once daily over 100 mg once daily since it presents the best benefit/risk ratio among the doses tested.Disclosure of Interests: :Amy Meng Shareholder of: Gilead Sciences, Employee of: Gilead, Kacey Anderson Shareholder of: Gilead Sciences, Employee of: Sciences, Cara Nelson Shareholder of: Gilead, Employee of: Gilead, Brian Kirby Shareholder of: Gilead, Employee of: Gilead, Liyun Ni Shareholder of: Gilead, Employee of: Gilead, Shu-Min Chuang Shareholder of: Gilead, Employee of: Gilead, Brian Kearney Shareholder of: Gilead, Employee of: Gilead, Anita Mathias Shareholder of: Gilead, Employee of: Gilead
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Ni L, Li C, Li Y. Correlation of APOBEC3G expression with liver function indexes of patients with chronic hepatitis B and comparison in chronic hepatitis B, liver cirrhosis and liver cancer. Oncol Lett 2020; 19:2562-2567. [PMID: 32194760 DOI: 10.3892/ol.2020.11257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/05/2019] [Indexed: 01/23/2023] Open
Abstract
Correlation of APOBEC3G expression with liver function indexes of patients with chronic hepatitis B and its expression in chronic hepatitis B, liver cirrhosis and liver cancer were investigated to evaluated the significance of APOBEC3G. Fifty-eight patients with chronic hepatitis B were selected, including 20 cases of chronic hepatitis B, 19 cases of liver cirrhosis and 19 cases of liver cancer. Liver function indexes were detected and analyzed, and messenger ribonucleic acid (mRNA) and protein expression levels of APOBEC3G in liver tissues were detected via reverse transcription-polymerase chain reaction (RT-PCR), western blotting and immunohistochemistry, followed by correlation analysis. Certain liver function indexes had significant differences among the three groups of patients (P<0.05). Results of RT-PCR, Western blotting and immunohistochemistry confirmed that the content of APOBEC3G in liver tissues was the highest in patients with chronic hepatitis B, slightly lower in patients with liver cirrhosis and the lowest in patients with liver cancer. The content of APOBEC3G mRNA in liver tissues had a certain correlation with the content of alanine aminotransferase (ALT) (r2 =0.34, P<0.05). Other liver function indexes had no significant correlations with APOBEC3G (P>0.05). APOBEC3G expression has a certain correlation with some liver function indexes of patients with chronic hepatitis B. There are significant differences in the expression level of APOBEC3G in patients with hepatitis, liver cirrhosis and liver cancer.
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Affiliation(s)
- Lina Ni
- Department of Blood Transfusion, Weihai Central Hospital, Wendeng, Weihai, Shandong 264400, P.R. China
| | - Chuanbao Li
- Department of Hepatobiliary Surgery, Weihai Central Hospital, Wendeng, Weihai, Shandong 264400, P.R. China
| | - Yingbo Li
- Department of Blood Transfusion, Weihai Central Hospital, Wendeng, Weihai, Shandong 264400, P.R. China
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Xu P, Ni L, Tao Y, Ma Z, Hu T, Zhao X, Yu Z, Lu C, Zhao X, Ren J. Genome-wide association study for growth and fatness traits in Chinese Sujiang pigs. Anim Genet 2020; 51:314-318. [PMID: 31909836 DOI: 10.1111/age.12899] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2019] [Indexed: 12/14/2022]
Abstract
Growth and fatness traits are complex and economically important traits in the pig industry. The molecular basis underlying porcine growth and fatness traits remains largely unknown. To uncover genetic loci and candidate genes for these traits, we explored the GeneSeek GGP Porcine 80K SNP chip to perform a GWAS for seven growth and fatness traits in 365 individuals from the Sujiang pig, a recently developed breed in China. We identified two, 17, one and 11 SNPs surpassing the suggestively significant threshold (P < 1.86 × 10-5 ) for body weight, chest circumference, chest width and backfat thickness respectively. Of these SNPs, 20 represent novel genetic loci, and five and four SNPs were respectively associated with chest circumference and backfat thickness at a genome-wide significant threshold (P < 9.31 × 10-7 ). Eight SNPs had a pleiotropic effect on both chest circumference and backfat thickness. The most remarkable locus resided in a region between 72.95 and 76.27 Mb on pig chromosome 4, harboring a number of previously reported quantitative trait loci related to backfat deposition. In addition to two reported genes (PLAG1 and TAS2R38), we identified four genes including GABRB3, ZNF106, XKR4 and MGAM as novel candidates for body weight and backfat thickness at the mapped loci. Our findings provide insights into the genetic architecture of porcine growth and fatness traits and potential markers for selective breeding of Chinese Sujiang pigs.
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Affiliation(s)
- P Xu
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - L Ni
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China.,Unit of Pig Breeding, Jiangsu Sujiang Pig Breeding Farm, 225400, Taixing, China
| | - Y Tao
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China.,Unit of Pig Breeding, Jiangsu Sujiang Pig Breeding Farm, 225400, Taixing, China
| | - Z Ma
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - T Hu
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - X Zhao
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - Z Yu
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - C Lu
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - X Zhao
- School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, 225300, Taizhou, China
| | - J Ren
- College of Animal Science, South China Agricultural University, 510642, Guangzhou, China
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Chen J, Yang J, Huang X, Ni L, Fan Q, Liu T, Yao Z, Chen Y. Reduced segregation and integration of structural brain network associated with sympathetic and dorsal penile nerve activity in anejaculation patients: a graph‐based connectome study. Andrology 2019; 8:392-399. [PMID: 31610095 DOI: 10.1111/andr.12715] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/11/2019] [Accepted: 10/08/2019] [Indexed: 12/14/2022]
Affiliation(s)
- J. Chen
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - J. Yang
- Department of Urology Jiangsu Provincial People's Hospital First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - X. Huang
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - L. Ni
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - Q. Fan
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - T. Liu
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - Z. Yao
- Department of Psychiatry Nanjing Brain Hospital Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Y. Chen
- Department of Andrology Jiangsu Province Hospital of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
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Hurcombe JA, Lay AC, Ni L, Barrington AF, Woodgett JR, Quaggin SE, Welsh GI, Coward RJ. Podocyte GSK3α is important for autophagy and its loss detrimental for glomerular function. FASEB Bioadv 2019; 1:498-510. [PMID: 31825015 PMCID: PMC6902909 DOI: 10.1096/fba.2019-00011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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] [Indexed: 02/06/2023] Open
Abstract
Podocytes are key cells in maintaining the integrity of the glomerular filtration barrier and preventing albuminuria. Glycogen synthase kinase 3 (GSK3) is a multi-functional serine/threonine kinase existing as two distinct but related isoforms (α and β). In the podocyte it has previously been reported that inhibition of the β isoform is beneficial in attenuating a variety of glomerular disease models but loss of both isoforms is catastrophic. However, it is not known what the role of GSK3α is in these cells. We now show that GSK3α is present and dynamically modulated in podocytes. When GSK3α is transgenically knocked down specifically in the podocytes of mice it causes mild but significant albuminuria by 6-weeks of life. Its loss also does not protect in models of diabetic or Adriamycin-induced nephropathy. In vitro deletion of podocyte GSK3α causes cell death and impaired autophagic flux suggesting it is important for this key cellular process. Collectively this work shows that GSK3α is important for podocyte health and that augmenting its function may be beneficial in treating glomerular disease.
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Affiliation(s)
| | - A C Lay
- Bristol Renal, University of Bristol
| | - L Ni
- Bristol Renal, University of Bristol
| | | | - J R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System & University of Toronto, Canada
| | - S E Quaggin
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois, US
| | - G I Welsh
- Bristol Renal, University of Bristol
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Li Y, Chang H, Ni L, Xue P, Li C, Yuan L, Cui H, Yu C. Analysis of thrombelastogram-guided medication in patients with coronary heart disease after percutaneous coronary intervention. Exp Ther Med 2019; 17:3047-3052. [PMID: 30936976 PMCID: PMC6434236 DOI: 10.3892/etm.2019.7294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/06/2019] [Indexed: 01/27/2023] Open
Abstract
Effects of thrombelastogram-guided (TEG-guided) clopidogrel and aspirin on major adverse cardiovascular events (MACE) after percutaneous coronary intervention (PCI) were investigated. A retrospective analysis was performed on 203 patients undergoing PCI interventional therapy in the Cardiovascular Medicine of Weihai Central Hospital from February 2015 to September 2016. The patients were treated with clopidogrel and aspirin for anti-thrombus therapy. Among them, 104 patients who had TEG detection of anticoagulant effects for guiding medication were the experimental group, and 99 patients without TEG detection for guiding medication the control group. The coagulation function and the platelet inhibition rate of patients after medication were evaluated and compared between the two groups. The incidence of MACE and bleeding events of patients was counted during three months of follow-up. Patients in the experimental group had higher R (coagulation reaction time) value and K (blood clot formation time) value than those in the control group after treatment (P<0.05), and lower MA (maximum amplitude) value than those in the control group (P<0.05). Patients in the experimental group had higher postoperative platelet inhibition rate than those in the control group (P<0.05). Patients in the experimental group had lower incidence of MACE and bleeding events than those in the control group (P<0.05). Coronary heart disease (CHD) patients after PCI with the TEG-guided dose adjustment of clopidogrel have more satisfactory treatment effects than patients without the TEG guidance. TEG makes the treatment of patients more targeted and is worthy of promotion.
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Affiliation(s)
- Yingbo Li
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Hongjin Chang
- Department of Blood Transfusion, Affiliated Hospital of Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Lina Ni
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Peng Xue
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Caixia Li
- Department of Medical Administration, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Lin Yuan
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Hailing Cui
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Chengyong Yu
- Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
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Shi R, Zhang Y, Yuan B, Zheng Z, Ni L, Feng R, Lin X, Dai L. Nb-Modified CeAlOx Catalyst Used for the Selective Catalytic Reduction of NO by NH3: The Promoting Effect of Nb. Kinet Catal 2019. [DOI: 10.1134/s0023158419020101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hao R, Zhou JP, Ni L, Li QY, Shi GC. [Smoking abstinence rate and its associated factors between abrupt and gradual smoking cessation]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 40:898-902. [PMID: 29224298 DOI: 10.3760/cma.j.issn.1001-0939.2017.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze and compare the abstinence rate of smoking quitting methods and its associated factors between abrupt and gradual smoking cessation in smokers with drug-based therapy. Methods: A prospective clinical study was conducted in patients undergoing quitting smoking intervention in Ruijin Hospital smoking cessation clinic between June 2013 and May 2016. All the subjects were randomized in a 1∶1 ratio into the abrupt smoking cessation group (smoking as usual over 3 weeks before a planned quit day, and then stopping smoking abruptly) and the gradual smoking cessation group (gradually reducing tobacco use over 3 weeks before a planned quit day, and then stopping smoking totally). The primary outcome was the complete abstinence rate, and the secondary outcomes included 1-month, 3-month and 6 month 7-day point prevalence of abstinence rates and 3 month sustained abstinence rates. Changes of body weight and drug adverse events were also compared. Results: A total of 314 moderate to severe nicotine-dependent patients were admitted in the study, including 157 patients in the abrupt smoking cessation and 157 patients in the gradual smoking cessation group. Fourteen patients fell off during the follow-up. For the complete abstinence rate, the gradual smoking cessation group was higher than the abrupt smoking cessation group(55.0% vs. 36.9%, χ(2)=9.841, P=0.002) .For 7-d smoking abstinence rate in the 1st, 3rd, 6th month, there was no significant difference between the 2 groups (all P>0.05). As for the 3-month sustained abstinence rate, a higher smoking quitting rate was seen in the gradual smoking cessation group compared to the abrupt smoking cessation group in the 6-month follow-up (17.9% vs.8.7%, χ(2)=5.441, P=0.020). The adverse drug reaction incidence was higher in the abrupt smoking cessation group than the gradual smoking cessation group (Gastrointestinal discomfort: 39.2% vs. 17.7%, χ(2)=12.336, P=0.000; Dreaminess: 40.2% vs. 13.3%, χ(2)=20.172, P=0.000). Conclusions: For moderate to severe nicotine-dependent patients, the gradual smoking cessation could serve to enhance the abstinence rate and mitigate the withdrawal symptoms.
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Affiliation(s)
- R Hao
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Hurcombe JA, Hartley P, Lay AC, Ni L, Bedford JJ, Leader JP, Singh S, Murphy A, Scudamore CL, Marquez E, Barrington AF, Pinto V, Marchetti M, Wong LF, Uney J, Saleem MA, Mathieson PW, Patel S, Walker RJ, Woodgett JR, Quaggin SE, Welsh GI, Coward RJM. Podocyte GSK3 is an evolutionarily conserved critical regulator of kidney function. Nat Commun 2019; 10:403. [PMID: 30679422 PMCID: PMC6345761 DOI: 10.1038/s41467-018-08235-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 12/21/2018] [Indexed: 01/18/2023] Open
Abstract
Albuminuria affects millions of people, and is an independent risk factor for kidney failure, cardiovascular morbidity and death. The key cell that prevents albuminuria is the terminally differentiated glomerular podocyte. Here we report the evolutionary importance of the enzyme Glycogen Synthase Kinase 3 (GSK3) for maintaining podocyte function in mice and the equivalent nephrocyte cell in Drosophila. Developmental deletion of both GSK3 isoforms (α and β) in murine podocytes causes late neonatal death associated with massive albuminuria and renal failure. Similarly, silencing GSK3 in nephrocytes is developmentally lethal for this cell. Mature genetic or pharmacological podocyte/nephrocyte GSK3 inhibition is also detrimental; producing albuminuric kidney disease in mice and nephrocyte depletion in Drosophila. Mechanistically, GSK3 loss causes differentiated podocytes to re-enter the cell cycle and undergo mitotic catastrophe, modulated via the Hippo pathway but independent of Wnt-β-catenin. This work clearly identifies GSK3 as a critical regulator of podocyte and hence kidney function.
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Affiliation(s)
- J A Hurcombe
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - P Hartley
- Bournemouth University, Bournemouth, BH12 5BB, UK
| | - A C Lay
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - L Ni
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - J J Bedford
- Dunedin School of Medicine, University of Otago, Dunedin, 9016, New Zealand
| | - J P Leader
- Dunedin School of Medicine, University of Otago, Dunedin, 9016, New Zealand
| | - S Singh
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - A Murphy
- Department of Pathology, Southern General Hospital, Glasgow, G51 4TF, UK
| | - C L Scudamore
- Mary Lyon Centre, MRC Harwell, Didcot, Oxford, OX11 0RD, UK
| | - E Marquez
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - A F Barrington
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - V Pinto
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - M Marchetti
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - L-F Wong
- Translational Health Sciences, University of Bristol, Bristol, BS2 8DZ, UK
| | - J Uney
- Translational Health Sciences, University of Bristol, Bristol, BS2 8DZ, UK
| | - M A Saleem
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - P W Mathieson
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
- The University of Hong Kong, Pokfulam, Hong Kong
| | - S Patel
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System & University of Toronto, Toronto, M5G 1X5, Canada
- Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - R J Walker
- Dunedin School of Medicine, University of Otago, Dunedin, 9016, New Zealand
| | - J R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System & University of Toronto, Toronto, M5G 1X5, Canada
| | - S E Quaggin
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, 60611, IL, USA
| | - G I Welsh
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK
| | - R J M Coward
- Bristol Renal, Dorothy Hodgkin Building, University of Bristol, Bristol, BS1 3NY, UK.
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Budelli G, Ni L, Berciu C, van Giesen L, Knecht ZA, Chang EC, Kaminski B, Silbering AF, Samuel A, Klein M, Benton R, Nicastro D, Garrity PA. Ionotropic Receptors Specify the Morphogenesis of Phasic Sensors Controlling Rapid Thermal Preference in Drosophila. Neuron 2019; 101:738-747.e3. [PMID: 30654923 DOI: 10.1016/j.neuron.2018.12.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [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: 06/25/2018] [Revised: 11/07/2018] [Accepted: 12/17/2018] [Indexed: 12/26/2022]
Abstract
Thermosensation is critical for avoiding thermal extremes and regulating body temperature. While thermosensors activated by noxious temperatures respond to hot or cold, many innocuous thermosensors exhibit robust baseline activity and lack discrete temperature thresholds, suggesting they are not simply warm and cool detectors. Here, we investigate how the aristal Cold Cells encode innocuous temperatures in Drosophila. We find they are not cold sensors but cooling-activated and warming-inhibited phasic thermosensors that operate similarly at warm and cool temperatures; we propose renaming them "Cooling Cells." Unexpectedly, Cooling Cell thermosensing does not require the previously reported Brivido Transient Receptor Potential (TRP) channels. Instead, three Ionotropic Receptors (IRs), IR21a, IR25a, and IR93a, specify both the unique structure of Cooling Cell cilia endings and their thermosensitivity. Behaviorally, Cooling Cells promote both warm and cool avoidance. These findings reveal a morphogenetic role for IRs and demonstrate the central role of phasic thermosensing in innocuous thermosensation. VIDEO ABSTRACT.
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Affiliation(s)
- Gonzalo Budelli
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA
| | - Lina Ni
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA; School of Neuroscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - Cristina Berciu
- Rosenstiel Basic Medical Sciences Research Center, Department of Biology, Brandeis University, Waltham, MA 02453, USA
| | - Lena van Giesen
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA
| | - Zachary A Knecht
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA
| | - Elaine C Chang
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA
| | - Benjamin Kaminski
- Department of Physics, University of Miami, Coral Gables, FL 33146, USA
| | - Ana F Silbering
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne 1015, Switzerland
| | - Aravi Samuel
- Department of Physics and Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Mason Klein
- Department of Physics, University of Miami, Coral Gables, FL 33146, USA; Department of Physics and Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Richard Benton
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne 1015, Switzerland
| | - Daniela Nicastro
- Rosenstiel Basic Medical Sciences Research Center, Department of Biology, Brandeis University, Waltham, MA 02453, USA; Departments of Cell Biology and Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390-9039, USA.
| | - Paul A Garrity
- Volen Center for Complex Systems, Department of Biology, Brandeis University, Waltham, MA 02454, USA.
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Abstract
OCT4, a marker of embryonic stem cells, is also a key transcription factor that plays a regulatory role in the self-renewal, proliferation and differentiation of stem cells. Previous studies showed that DNA methylation is involved in the regulation of OCT4 expression during the development and differentiation of embryonic stem cells. However, DNA methylation in the promoter region of OCT4 has not yet been discussed in human recurrent glioma. In this study, we assessed the specimens from 24 cases of recurrent glioma for OCT4 expression and methylation status, and commenced analyzing the correlation between the two by treating glioma cells with a demethylating agent in vitro. The results demonstrated that for the same cases, the expression of OCT4 in specimens of recurrent glioma was significant higher than that in primary glioma (P<0.05). DNA methylation levels in recurrent glioma decreased obviously compared with that in primary glioma (t=9.800, P=0.008). In vitro study indicated, following demethylation treatment, glioma cells had an increased OCT4 expression. These results suggest that DNA hypomethylation may be a key mechanism underlying the up-regulation of OCT4 in the recurrence of glioma, which facilitates the understanding of the role of stem cells and the exploration of novel strategies for the treatment of recurrent glioma.
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Yang C, Li W, Schindell B, Ni L, Liu S, Gong J, Yang C. PSIV-12 Molecular distribution and localization of bitter receptor (T2R1) in different tissues including intestinal segments in weaned piglets. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.698] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - W Li
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - B Schindell
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - L Ni
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - S Liu
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - J Gong
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Choi J, Li W, Schindell B, Ni L, Liu S, Gong J, Nyachoti C, Yang C. PSI-26 Expression of cysteine/glutamate exchanger (SLC7A11) in different tissues including intestinal segments of broiler chickens. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.403] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Choi
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - W Li
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - B Schindell
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - L Ni
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - S Liu
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - J Gong
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, Ontario, Canada N1G 5C9, Guelph, AB, Canada
| | - C Nyachoti
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Yang R, Wang Y, Schindell B, Li W, Ni L, Liu S, Gong J, Yang C. PSIV-11 Molecular distribution and localization of bitter receptor (T2R7) in different tissues including intestinal segments in weaned piglets. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.697] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- R Yang
- College of Food Science and Technology, Nanjing Agricultural University,Nanjing, Jiangsu, 210095, China/Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - Y Wang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - B Schindell
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - W Li
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - L Ni
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - S Liu
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - J Gong
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Zhao X, Schindell B, Li W, Ni L, Liu S, Gong J, Nyachoti C, O K, Yang C. PSI-33 Distribution and localization of porcine calcium sensing receptor (pCaSR) in different tissues in weaned piglets. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.410] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- X Zhao
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - B Schindell
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - W Li
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - L Ni
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - S Liu
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - J Gong
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - C Nyachoti
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - K O
- St. Boniface Hospital Research Centre, Winnipeg, MB, Canada, Winnipeg, MB, Canada
| | - C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Li X, Yu J, Li S, Shao Z, Ni L. A Non-linear and Noise-Tolerant ZNN Model and Its Application to Static and Time-Varying Matrix Square Root Finding. Neural Process Lett 2018. [DOI: 10.1007/s11063-018-9953-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ni L, Kozloff M, Wu T, Arif F, Posner M, Kindler H, Liauw S. A Phase I/II Trial of Stereotactic Body Radiation Therapy for Unresectable Pancreatic Cancer Using Ablative (BED100) Doses. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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50
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Ni L, Chmura S, Golden D. National Radiation Oncology Medical Student Clerkship Trends From 2013-2017. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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