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Zhang Q, Zhang Y, Wang C, Tang H, Ma A, Gao P, Shi Q, Wang G, Shen S, Zhang J, Xia F, Zhu Y, Wang J. Gambogic acid exhibits promising anticancer activity by inhibiting the pentose phosphate pathway in lung cancer mouse model. Phytomedicine 2024; 129:155657. [PMID: 38692076 DOI: 10.1016/j.phymed.2024.155657] [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: 10/17/2023] [Revised: 12/18/2023] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND The pentose phosphate pathway (PPP) plays a crucial role in the material and energy metabolism in cancer cells. Targeting 6-phosphogluconate dehydrogenase (6PGD), the rate-limiting enzyme in the PPP metabolic process, to inhibit cellular metabolism is an effective anticancer strategy. In our previous study, we have preliminarily demonstrated that gambogic acid (GA) induced cancer cell death by inhibiting 6PGD and suppressing PPP at the cellular level. However, it is unclear whether GA could suppress cancer cell growth by inhibiting PPP pathway in mouse model. PURPOSE This study aimed to confirm that GA as a covalent inhibitor of 6PGD protein and to validate that GA suppresses cancer cell growth by inhibiting the PPP pathway in a mouse model. METHODS Cell viability was detected by CCK-8 assays as well as flow cytometry. The protein targets of GA were identified using a chemical probe and activity-based protein profiling (ABPP) technology. The target validation was performed by in-gel fluorescence assay, the Cellular Thermal Shift Assay (CETSA). A lung cancer mouse model was constructed to test the anticancer activity of GA. RNA sequencing was performed to analyze the global effect of GA on gene expression. RESULTS The chemical probe of GA exhibited high biological activity in vitro. 6PGD was identified as one of the binding proteins of GA by ABPP. Our findings revealed a direct interaction between GA and 6PGD. We also found that the anti-cancer activity of GA depended on reactive oxygen species (ROS), as evidenced by experiments on cells with 6PGD knocked down. More importantly, GA could effectively reduce the production of the two major metabolites of the PPP in lung tissue and inhibit cancer cell growth in the mouse model. Finally, RNA sequencing data suggested that GA treatment significantly regulated apoptosis and hypoxia-related physiological processes. CONCLUSION These results demonstrated that GA was a covalent inhibitor of 6PGD protein. GA effectively suppressed cancer cell growth by inhibiting the PPP pathway without causing significant side effects in the mouse model. Our study provides in vivo evidence that elucidates the anticancer mechanism of GA, which involves the inhibition of 6PGD and modulation of cellular metabolic processes.
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Affiliation(s)
- Qianyu Zhang
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Ying Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Chen Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Huan Tang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ang Ma
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Peng Gao
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiaoli Shi
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Guohua Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shengnan Shen
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Junzhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Fei Xia
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yinhua Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.
| | - Jigang Wang
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; School of Pharmaceutical Sciences and School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, PR China; Department of Urology, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, China.
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Quan YZ, Ma A, Ren CQ, An YP, Qiao PS, Gao C, Zhang YK, Li XW, Lin SM, Li NN, Chen DL, Pan Y, Zhou H, Lin DM, Lin SQ, Li M, Yang BX. Ganoderic acids alleviate atherosclerosis by inhibiting macrophage M1 polarization via TLR4/MyD88/NF-κB signaling pathway. Atherosclerosis 2024; 391:117478. [PMID: 38417185 DOI: 10.1016/j.atherosclerosis.2024.117478] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND AND AIMS Atherosclerosis (AS) is a chronic inflammatory disease characterized by lipid infiltration and plaque formation in blood vessel walls. Ganoderic acids (GA), a class of major bioactive compounds isolated from the Chinese traditional medicine Ganoderma lucidum, have multiple pharmacological activities. This study aimed to determine the anti-atherosclerotic effect of GA and reveal the pharmacological mechanism. METHODS ApoE-/- mice were fed a high-cholesterol diet and treated with GA for 16 weeks to induce AS and identify the effect of GA. Network pharmacological analysis was performed to predict the anti-atherosclerotic mechanisms. An invitro cell model was used to explore the effect of GA on macrophage polarization and the possible mechanism involved in bone marrow dereived macrophages (BMDMs) and RAW264.7 cells stimulated with lipopolysaccharide or oxidized low-density lipoprotein. RESULTS It was found that GA at 5 and 25 mg/kg/d significantly inhibited the development of AS and increased plaque stability, as evidenced by decreased plaque in the aorta, reduced necrotic core size and increased collagen/lipid ratio in lesions. GA reduced the proportion of M1 macrophages in plaques, but had no effect on M2 macrophages. In vitro experiments showed that GA (1, 5, 25 μg/mL) significantly decreased the proportion of CD86+ macrophages and the mRNA levels of IL-6, IL-1β, and MCP-1 in macrophages. Experimental results showed that GA inhibited M1 macrophage polarization by regulating TLR4/MyD88/NF-κB signaling pathway. CONCLUSIONS This study demonstrated that GA play an important role in plaque stability and macrophage polarization. GA exert the anti-atherosclerotic effect partly by regulating TLR4/MyD88/NF-κB signaling pathways to inhibit M1 polarization of macrophages. Our study provides theoretical basis and experimental data for the pharmacological activity and mechanisms of GA against AS.
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Affiliation(s)
- Ya-Zhu Quan
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ang Ma
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China; Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100007, China
| | - Chao-Qun Ren
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Yong-Pan An
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Pan-Shuang Qiao
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Cai Gao
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Yu-Kun Zhang
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China; Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical College, Chongqing, 404020, China
| | - Xiao-Wei Li
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China; China Resources Pharmaceutical Group Limited, Beijing, 100000, China
| | - Si-Mei Lin
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Nan-Nan Li
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Di-Long Chen
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical College, Chongqing, 404020, China
| | - Yan Pan
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Hong Zhou
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Dong-Mei Lin
- China National Engineering Research Center on JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shu-Qian Lin
- China National Engineering Research Center on JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Min Li
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Bao-Xue Yang
- State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
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Meng Y, Liu Y, Zhu Y, Qiu C, Ma A, Liu D, Zhang S, Gu L, Zhang J, Wang J. Insights into the time-course cellular effects triggered by iron oxide nanoparticles by combining proteomics with the traditional pharmacology strategy. J Mater Chem B 2024; 12:1892-1904. [PMID: 38305086 DOI: 10.1039/d3tb02476h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
In recent years, a number of initially approved magnetic iron oxide nanoparticle (IONP)-based nano-medicines have been withdrawn due to the obscure nano-bio effects. Therefore, there is an urgent need to study the cellular effects triggered by IONPs on cells. In this study, we investigate the time-course cellular effects on the response of RAW 264.7 cells caused by Si-IONPs via pharmacological and mass spectrometry-based proteomics techniques. Our results revealed that Si-IONPs were internalized by clathrin-mediated endocytosis within 1 hour, and gradually degraded in endolysosomes over time, which might influence autophagy, oxidative stress, innate immune response, and inflammatory response after 12 hours. Our research provides a necessary assessment of Si-IONPs for further clinical treatment.
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Affiliation(s)
- Yuqing Meng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Yanqing Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Yongping Zhu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Chong Qiu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Ang Ma
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Dandan Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Shujie Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Liwei Gu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Junzhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Jigang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
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Meng YQ, Shi YN, Zhu YP, Liu YQ, Gu LW, Liu DD, Ma A, Xia F, Guo QY, Xu CC, Zhang JZ, Qiu C, Wang JG. Recent trends in preparation and biomedical applications of iron oxide nanoparticles. J Nanobiotechnology 2024; 22:24. [PMID: 38191388 PMCID: PMC10775472 DOI: 10.1186/s12951-023-02235-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/29/2023] [Indexed: 01/10/2024] Open
Abstract
The iron oxide nanoparticles (IONPs), possessing both magnetic behavior and semiconductor property, have been extensively used in multifunctional biomedical fields due to their biocompatible, biodegradable and low toxicity, such as anticancer, antibacterial, cell labelling activities. Nevertheless, there are few IONPs in clinical use at present. Some IONPs approved for clinical use have been withdrawn due to insufficient understanding of its biomedical applications. Therefore, a systematic summary of IONPs' preparation and biomedical applications is crucial for the next step of entering clinical practice from experimental stage. This review summarized the existing research in the past decade on the biological interaction of IONPs with animal/cells models, and their clinical applications in human. This review aims to provide cutting-edge knowledge involved with IONPs' biological effects in vivo and in vitro, and improve their smarter design and application in biomedical research and clinic trials.
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Affiliation(s)
- Yu Qing Meng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ya Nan Shi
- School of Pharmacy, Yantai University, No. 30, Qingquan Road, Laishan District, Yantai, Shandong, China
| | - Yong Ping Zhu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yan Qing Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Li Wei Gu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Dan Dan Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ang Ma
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Fei Xia
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qiu Yan Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Cheng Chao Xu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jun Zhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chong Qiu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Ji Gang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Zhu J, Qu Y, Lu M, Ma A, Mo J, Wen Z. CT-based radiomics for prediction of pulmonary haemorrhage after percutaneous CT-guided transthoracic lung biopsy of pulmonary nodules. Clin Radiol 2023; 78:e993-e1000. [PMID: 37726191 DOI: 10.1016/j.crad.2023.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/14/2023] [Accepted: 08/23/2023] [Indexed: 09/21/2023]
Abstract
AIM To evaluate the feasibility of intranodular and perinodular computed tomography (CT) radiomics features for predicting the occurrence of pulmonary haemorrhage after percutaneous CT-guided transthoracic lung biopsy (PCTLB) in pulmonary nodules. MATERIALS AND METHODS The data for 332 patients with pulmonary nodules who underwent PCTLB were reviewed retrospectively. Pulmonary haemorrhage after PCTLB was evaluated using CT (144 cases occurred). Radiomics features based on gross nodular (GNV) and perinodular volumes (PNV) were extracted from pre-biopsy CT images and features selection using least absolute shrinkage and selection operator (LASSO) regression, and three radiomics scores (rad-scores) were built. Rad-scores, clinical, and clinical-radiomic models were developed and evaluated to predict the occurrence of pulmonary haemorrhage. RESULTS Five, five, and six significant features were selected for prediction of pulmonary haemorrhage based on GNV, PNV, and GNV + PNV, respectively. Lesion depth was the only clinical characteristics related to pulmonary haemorrhage. Lesion depth and rad-score based on GNV, PNV, and GNV + PNV for predicting the pulmonary haemorrhage achieved areas under the curves (AUCs) of 0.656, 0.645, 0.651, and 0.635 in the validation group, respectively. Three clinical-radiomic models improved the AUCs to 0.743, 0.723, and 0.748. The performance of rad-score_GNV + PNV combined with lesion depth outperformed the clinical model (p=0.024) and the radiomics signature (p=0.038). In addition, the radiomics signatures were significantly associated with higher-grade pulmonary haemorrhage (p<0.05). CONCLUSIONS Radiomics features from intranodular and perinodular regions of pulmonary nodules have good predictive ability for pulmonary haemorrhage after PCTLB, which may provide additional predictive value for clinical practice.
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Affiliation(s)
- J Zhu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China
| | - Y Qu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China
| | - M Lu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China
| | - A Ma
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China
| | - J Mo
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China
| | - Z Wen
- Department of Radiology, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong, 510282, China.
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Peng C, Guo Q, Zhang T, Chen J, Liu N, Yan P, Lu Y, Ma A, Lv P, Liu J, Xie P. Maintenance Therapy for Recurrent or Metastatic Cervical Cancer: A Multicenter, Cohort Study. Int J Radiat Oncol Biol Phys 2023; 117:e537-e538. [PMID: 37785662 DOI: 10.1016/j.ijrobp.2023.06.1827] [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) Maintenance therapy with alternative agents after chemotherapy was shown to improve the overall survival in some advanced cancers such as breast cancer, lung cancer, ovarian cancer and so on. However, maintenance therapy is not accepted as the standard treatment for recurrent/metastatic cervical cancer. Aim of this study is to elucidate the efficacy of maintenance therapy in cervical cancer and to explore the factors associated with the prognosis of recurrent or metastatic cervical cancer. MATERIALS/METHODS In this multicenter cohort study, we retrospectively collected patients with a diagnosis of either recurrent or stage IVB cervical cancer to receive first-line chemotherapy with or without maintenance therapy. Patients did not have disease progression with first-line chemotherapy and were divided into maintenance therapy group (Arm A) and conventional chemotherapy group (Arm B). Information on clinical characteristics, metastasis information, treatment outcome and survival of patients was collected using an electronic medical record system. The endpoints of the study were OS and PFS. Data were analyzed for general characteristics and survival using statistical software, and the results were considered statistically significant at P < 0.05. RESULTS Between January 2019 and July 2021, a total of 270 patients were enrolled from 6 institutions in China. 26 patients were excluded because of short treatment cycles (less than 3 cycles). Finally, a total of 66 patients in Arm A and 178 patients in Arm B were analyzed for survival. The addition of maintenance significantly prolonged overall survival. Overall survival at 3 year was 50.1% in Arm A and 27.8% in Arm B (median overall survival, ≥36 months vs. 22 months; P<0. 001). The median progression-free survival was 21 months in Arm A and 14 months in Arm B (P = 0.025). Univariate survival analysis showed that age, maintenance therapy, combined radiotherapy, and number of extra-pelvic metastases were associated with PFS. Further multifactorial analysis showed that maintenance therapy, combined radiotherapy, and number of extra-pelvic metastases were independent prognostic factors for patients with recurrent or metastatic cervical cancer. CONCLUSION The addition of maintenance therapy significantly prolonged overall survival as well as progression-free survival in patients with recurrent or metastatic cervical cancer and did not increase the incidence of serious adverse events. It is time to consider maintenance therapy as the standard treatment after conventional chemotherapy for recurrent or metastatic cervical cancer, rather than waiting for disease progression.
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Affiliation(s)
- C Peng
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Q Guo
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - T Zhang
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - J Chen
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - N Liu
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - P Yan
- Department of Gastrointestinal, Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Y Lu
- Department of Radiation Oncology, The First Affiliated Hospital of Wannan Medical College, Wuhan, China
| | - A Ma
- Department of Thoracic Surgery, East Hospital of Shandong First Medical University Affiliated Provincial Hospital, Jinan, China
| | - P Lv
- Department of Gynecology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - J Liu
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - P Xie
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Lu M, Qu Y, Ma A, Zhu J, Zou X, Lin G, Li Y, Liu X, Wen Z. [Prediction of 1p/19q codeletion status in diffuse lower-grade glioma using multimodal MRI radiomics]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1023-1028. [PMID: 37439176 DOI: 10.12122/j.issn.1673-4254.2023.06.19] [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: 07/14/2023]
Abstract
OBJECTIVE To develop a noninvasive method for prediction of 1p/19q codeletion in diffuse lower-grade glioma (DLGG) based on multimodal magnetic resonance imaging (MRI) radiomics. METHODS We collected MRI data from 104 patients with pathologically confirmed DLGG between October, 2015 and September, 2022. A total of 535 radiomics features were extracted from T2WI, T1WI, FLAIR, CE-T1WI and DWI, including 70 morphological features, 90 first order features, and 375 texture features. We constructed logistic regression (LR), logistic regression least absolute shrinkage and selection operator (LRlasso), support vector machine (SVM) and Linear Discriminant Analysis (LDA) radiomics models and compared their predictive performance after 10-fold cross validation. The MRI images were reviewed by two radiologists independently for predicting the 1p/19q status. Receiver operating characteristic curves were used to evaluate classification performance of the radiomics models and the radiologists. RESULTS The 4 radiomics models (LR, LRlasso, SVM and LDA) achieved similar area under the curve (AUC) in the validation dataset (0.833, 0.819, 0.824 and 0.819, respectively; P>0.1), and their predictive performance was all superior to that of resident physicians of radiology (AUC=0.645, P=0.011, 0.022, 0.016, 0.030, respectively) and similar to that of attending physicians of radiology (AUC=0.838, P>0.05). CONCLUSION Multiparametric MRI radiomics models show good performance for noninvasive prediction of 1p/19q codeletion status in patients with in diffuse lower-grade glioma.
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Affiliation(s)
- M Lu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Y Qu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - A Ma
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - J Zhu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - X Zou
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - G Lin
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Y Li
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - X Liu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Z Wen
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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Qiu L, Zhang Y, Wei G, Wang C, Zhu Y, Yang T, Chu Z, Gao P, Cheng G, Ma A, Kwan Wong Y, Zhang J, Xu C, Wang J, Tang H. How eluents define proteomic fingerprinting of protein corona on nanoparticles. J Colloid Interface Sci 2023; 648:497-510. [PMID: 37307606 DOI: 10.1016/j.jcis.2023.05.045] [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: 01/03/2023] [Revised: 04/25/2023] [Accepted: 05/07/2023] [Indexed: 06/14/2023]
Abstract
Nanoparticles (NPs) have broad application prospects in the field of biomedicine due to their excellent physicochemical properties. When entering biological fluids, NPs inevitably encountered proteins and were subsequently surrounded by them, forming the termed protein corona (PC). As PC has been evidenced to have critical roles in deciding the biological fates of NPs, how to precisely characterize PC is vital to promote the clinical translation of nanomedicine by understanding and harnessing NPs' behaviors. During the centrifugation-based separation techniques for the PC preparation, direct elution has been most widely used to strip proteins from NPs due to its simpleness and robustness, but the roles of multifarious eluents have never been systematically declared. Herein, seven eluents composed of three denaturants, sodium dodecyl sulfate (SDS), dithiothreitol (DTT), and urea (Urea), were applied to detach PC from gold nanoparticles (AuNPs) and silica nanoparticles (SiNPs), and eluted proteins in PC have been carefully characterized by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and chromatography coupled tandem mass spectrometry (LC-MS/MS). Our results showed that SDS and DTT were the main contributors to the efficient desorption of PC on SiNPs and AuNPs, respectively. The molecular reactions between NPs and proteins were explored and verified by SDS-PAGE analysis of PC formed in the serums pretreated with protein denaturing or alkylating agents. The proteomic fingerprinting analysis indicated the difference of the eluted proteins brought by the seven eluents was the abundance rather than the species. The enrichment of some opsonins and dysopsonins in a special elution reminds us that the possibility of biased judgments on predicting NPs' biological behaviors under different elution conditions. The synergistic effects or antagonistic effects among denaturants for eluting PC were manifested in a nanoparticle-type dependent way by integrating the properties of the eluted proteins. Collectively, this study not only underlines the urgent need of choosing the appropriate eluents for identifying PC robustly and unbiasedly, but also provides an insight into the understanding of molecular interactions during PC formation.
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Affiliation(s)
- Liangjia Qiu
- Guangdong Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515 Guangdong, China
| | - Ying Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Genxia Wei
- Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chen Wang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yinhua Zhu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Tong Yang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zheng Chu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Peng Gao
- Guangdong Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515 Guangdong, China
| | - Guangqing Cheng
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ang Ma
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yin Kwan Wong
- Department of Physiological Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Junzhe Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Chengchao Xu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Jigang Wang
- Guangdong Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515 Guangdong, China; Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China.
| | - Huan Tang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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Gu Y, Mei D, Wang X, Ma A, Kong J, Zhang Y. Clinical and genetic analysis of benign familial infantile epilepsy caused by PRRT2 gene variant. Front Neurol 2023; 14:1135044. [PMID: 37228410 PMCID: PMC10204721 DOI: 10.3389/fneur.2023.1135044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 04/18/2023] [Indexed: 05/27/2023] Open
Abstract
Objective This study presents the clinical phenotypes and genetic analysis of seven patients with benign familial infantile epilepsy (BFIE) diagnosed by whole-exome sequencing. Methods The clinical data of seven children with BFIE diagnosed at the Department of Neurology, Children's Hospital Affiliated to Zhengzhou University between December 2017 and April 2022 were retrospectively analyzed. Whole-exome sequencing was used to identify the genetic causes, and the variants were verified by Sanger sequencing in other family members. Results The seven patients with BFIE included two males and five females ranging in age between 3 and 7 months old. The main clinical phenotype of the seven affected children was the presence of focal or generalized tonic-clonic seizures, which was well controlled by anti-seizure medication. Cases 1 and 5 exhibited predominantly generalized tonic-clonic seizures accompanied by focal seizures while cases 2, 3, and 7 displayed generalized tonic-clonic seizures, and cases 4 and 6 had focal seizures. The grandmother and father of cases 2, 6, and 7 had histories of seizures. However, there was no family history of seizures in the remaining cases. Case 1 carried a de novo frameshift variant c.397delG (p.E133Nfs*43) in the proline-rich transmembrane protein 2 (PRRT2) gene while case 2 had a nonsense variant c.46G > T (p.Glu16*) inherited from the father, and cases 3-7 carried a heterozygous frameshift variant c.649dup (p.R217Pfs*8) in the same gene. In cases 3 and 4, the frameshift variant was de novo, while in cases 5-7, the variant was paternally inherited. The c.397delG (p.E133Nfs*43) variant is previously unreported. Conclusion This study demonstrated the effectiveness of whole-exome sequencing in the diagnosis of BFIE. Moreover, our findings revealed a novel pathogenic variant c.397delG (p.E133Nfs*43) in the PRRT2 gene that causes BFIE, expanding the mutation spectrum of PRRT2.
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Affiliation(s)
- Yu Gu
- Department of Pediatrics, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Daoqi Mei
- Department of Neurology, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Xiaona Wang
- Zhengzhou Key Laboratory of Pediatric Neurobehavioral, Henan Neural Development Engineering Research Center, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Ang Ma
- Department of Pediatrics, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Jinghui Kong
- Zhengzhou Key Laboratory of Pediatric Neurobehavioral, Henan Neural Development Engineering Research Center, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yaodong Zhang
- Zhengzhou Key Laboratory of Pediatric Neurobehavioral, Henan Neural Development Engineering Research Center, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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Li XW, Ran JH, Zhou H, He JZ, Qiu ZW, Wang SY, Wu MN, Zhu S, An YP, Ma A, Li M, Quan YZ, Li NN, Ren CQ, Yang BX. 1-Indanone retards cyst development in ADPKD mouse model by stabilizing tubulin and down-regulating anterograde transport of cilia. Acta Pharmacol Sin 2023; 44:406-420. [PMID: 35906293 PMCID: PMC9889777 DOI: 10.1038/s41401-022-00937-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/24/2022] [Accepted: 06/03/2022] [Indexed: 02/04/2023] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is the most common inherited kidney disease. Cyst development in ADPKD involves abnormal epithelial cell proliferation, which is affected by the primary cilia-mediated signal transduction in the epithelial cells. Thus, primary cilium has been considered as a therapeutic target for ADPKD. Since ADPKD exhibits many pathological features similar to solid tumors, we investigated whether targeting primary cilia using anti-tumor agents could alleviate the development of ADPKD. Twenty-four natural compounds with anti-tumor activity were screened in MDCK cyst model, and 1-Indanone displayed notable inhibition on renal cyst growth without cytotoxicity. This compound also inhibited cyst development in embryonic kidney cyst model. In neonatal kidney-specific Pkd1 knockout mice, 1-Indanone remarkably slowed down kidney enlargement and cyst expansion. Furthermore, we demonstrated that 1-Indanone inhibited the abnormal elongation of cystic epithelial cilia by promoting tubulin polymerization and significantly down-regulating expression of anterograde transport motor protein KIF3A and IFT88. Moreover, we found that 1-Indanone significantly down-regulated ciliary coordinated Wnt/β-catenin, Hedgehog signaling pathways. These results demonstrate that 1-Indanone inhibits cystic cell proliferation by reducing abnormally prolonged cilia length in cystic epithelial cells, suggesting that 1-Indanone may hold therapeutic potential to retard cyst development in ADPKD.
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Affiliation(s)
- Xiao-Wei Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Jian-Hua Ran
- Department of Anatomy, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Jin-Zhao He
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Zhi-Wei Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Shu-Yuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Meng-Na Wu
- Department of Anatomy, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shuai Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Yong-Pan An
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ang Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Min Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ya-Zhu Quan
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Nan-Nan Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Chao-Qun Ren
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Bao-Xue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China.
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11
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Ma A, Yang W, Gao K, Tang J. Concave gold nano-arrows (AuCNAs) for efficient catalytic reduction of 4-nitrophenol. Chemosphere 2023; 310:136800. [PMID: 36244421 DOI: 10.1016/j.chemosphere.2022.136800] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/01/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Anisotropic gold nanostructures have attracted great attention in different fields including catalysis. Thermodynamically driven selective surface growth offers a reliable and reproducible method for anisotropic gold nanoparticle synthesis with specific morphologies. Herein, monocrystalline concave gold nano-arrows (AuCNAs) are prepared by the over-growth method using Au nanorods (AuNRs) as seeds. The as-prepared AuCNAs consist of a biconical head and four concave structures. Interestingly, silver ions (Ag+) concentration significantly affects the product morphology by tuning the peak positions of surface plasmon resonance (SPR), aspect ratio, arrow, and concave morphology of AuCNAs. The position of longitudinal SPR peaks is observed at 810, 805 and 782 nm at [Ag+]/[Au3+] molar ratios of 1:2, 1:1, and 2:1, respectively. Diameters and lengths of AuCNAs varied from 25 nm to 36 nm; 104 nm, 78 nm, and 120 nm, respectively. Additionally, the AuCNAs are applied for the catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in presence of excess NaBH4. Compared to gold nanorods (AuNRs), the prepared AuCNAs catalyst shows excellent catalytic activity, demonstrating that concave structures and sharp corners significantly enhance the catalytic activity. The value of pseudo-first-order reaction kinetic constants (kapp) increased from 0.0051 to 0.0195 s-1 with increasing catalyst valume from 7.5 to 37.5 μL. The highest normalized reaction rate constant (Knor) and turnover frequency (TOF) reach 5.84 × 104 min-1 mmol-1 and 443.47 h-1, respectively, at [Ag+]/[Au3+] ratio of 1:1 in AuCNAs catalyst. This study expands catalytic applications of anisotropic gold nanostructures and widens their potential application areas, such as surface plasmon exciton photonics, biomedical photonics, and photocatalysis.
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Affiliation(s)
- Ang Ma
- College of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, China
| | - Weiye Yang
- College of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, China
| | - Kunpeng Gao
- College of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, China
| | - Junqi Tang
- College of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, China.
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Ma A, Yang W, Yan H, Tang J. Substrate-Free Fabrication of Single-Crystal Two-Dimensional Gold Nanoplates for Catalytic Application. Langmuir 2022; 38:15263-15271. [PMID: 36444415 DOI: 10.1021/acs.langmuir.2c02404] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Two-dimensional (2D) gold nanoplates (AuNPLs) have shown potential in catalysis, photonics, electronics, sensing, and biomedicine fields due to their high aspect ratio, fascinating surface chemistry, and quantum-size effect. Therefore, the synthesis of substrate-free, size-controlled single-crystal gold (Au) nanoplates is highly desirable for the development of catalysis and optical near-field enhancement applications. EDTA and hydroxide anions were used in this study to stimulate the formation of microscale single-crystal gold nanoplates under hydrothermal conditions. The reaction temperature, amount of EDTA, and hydroxyl anions all have a significant effect on the morphologies and size distributions of the gold nanoplates. The gold nanoplates had an average side length of between 3 and 11 μm. The application of the microscale single-crystal gold nanoplates as a nanocatalyst proved their excellent catalytic activity and recyclability for the catalysis of 4-nitrophenol to 4-aminophenol, implying that the large-size gold nanoplates were promising in heterogeneous catalysis applications.
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Affiliation(s)
- Ang Ma
- College of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China
| | - Weiye Yang
- College of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China
| | - Hao Yan
- College of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China
| | - Junqi Tang
- College of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China
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Qiao P, Jia Y, Ma A, He J, Shao C, Li X, Wang S, Yang B, Zhou H. Dapagliflozin protects against nonalcoholic steatohepatitis in db/db mice. Front Pharmacol 2022; 13:934136. [PMID: 36059948 PMCID: PMC9437261 DOI: 10.3389/fphar.2022.934136] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/18/2022] [Indexed: 01/18/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), which is the most common liver disease, is associated with type 2 diabetes mellitus and metabolic syndrome. Although there is no consensus on the treatment of NAFLD, growing evidence suggests that tight glycemic control would contribute to the improvement of NAFLD. However, some insulin sensitizers cannot improve NAFLD, especially nonalcoholic steatohepatitis (NASH). Whether insulin-independent hypoglycemic drug dapagliflozin, a sodium-glucose cotransporter-2 inhibitor, may improve NAFLD keeps unclear. Therefore, 12-week-old male C57BL/6 wild-type and db/db mice were treated with 1 mg/kg dapagliflozin or vehicle for 12 weeks. Dapagliflozin alleviated NASH, manifesting as decreased alanine aminotransferase and NAFLD activity score in db/db mice. Also, dapagliflozin reduced de novo lipogenesis by the upregulation of FXR/SHP and downregulation of LXRα/SREBP-1c in the liver of db/db mice. Moreover, dapagliflozin treatment reduced inflammatory response by inhibiting the NF-κB pathway and alleviated fibrosis by restoring the balance between fibrogenesis and fibrolysis in the liver of db/db mice. In summary, dapagliflozin alleviates NASH mostly by reducing lipid accumulation, inflammation, and fibrosis. These findings provide new insights for understanding the protective effect of dapagliflozin in NASH and suggest that dapagliflozin may be used to treat NASH.
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Affiliation(s)
- Panshuang Qiao
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yingli Jia
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ang Ma
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jinzhao He
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Chen Shao
- The Department of Pathology, Beijing You An Hospital, Capital Medical University, Beijing, China
| | - Xiaowei Li
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Shuyuan Wang
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Baoxue Yang
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
- *Correspondence: Baoxue Yang, ; Hong Zhou,
| | - Hong Zhou
- Department of Pharmacology and Department of the Integration of Chinese and Western Medicine and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
- *Correspondence: Baoxue Yang, ; Hong Zhou,
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Zhu Y, Zhang Y, Zhang Q, Ma A, Zhang Y, Wang C, Gao P, Guo Q, Xia F, Tang H, Xu C, Wang J. Gambogic acid suppresses the pentose phosphate pathway by covalently inhibiting 6PGD protein in cancer cells. Chem Commun (Camb) 2022; 58:9030-9033. [PMID: 35876000 DOI: 10.1039/d2cc03069a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Whether or not the anticancer activity of gambogic acid is achieved via regulating the cellular metabolic process remains unclear. Here we report that gambogic acid suppresses the pentose phosphate pathway (PPP) by covalently inhibiting the 6-phosphogluconate dehydrogenase (6PGD) protein. This study elucidates the mechanism of action of gambogic acid from the perspective of metabolic reprogramming regulation in cancer cells.
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Affiliation(s)
- Yinhua Zhu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ying Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qianyu Zhang
- Pharmaceutical College, Henan University, Kaifeng, 475004, China.
| | - Ang Ma
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ying Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chen Wang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Peng Gao
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qiuyan Guo
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Fei Xia
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Huan Tang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chengchao Xu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jigang Wang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
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Wang Y, Meng X, Ma A, Sun M, Jiao S, Wang C. Rhodol-derived turn-on fluorescent chemosensor for ultrasensitive detection of nitroreductase activity in bacteria and bioimaging in oral cancer cells. Spectrochim Acta A Mol Biomol Spectrosc 2022; 270:120836. [PMID: 34998052 DOI: 10.1016/j.saa.2021.120836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/29/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
The detection of intracellular nitroreductase (NTR) activity is important for the study of hypoxia in organisms. In the present study, a Rhodol-derived fluorescent chemosensor (Rhod-NO2) was synthesized in a one-step procedure. Rhod-NO2 exhibits 110-fold fluorescence enhancement in the presence of NTR. Moreover, Rhod-NO2 demonstrates high NTR selectivity and sensitivity (LOD, 0.6 ng/mL). The mode of Rhod-NO2 binding to NTR was also revealed by molecular docking. In addition, the reaction and luminescence mechanisms were evaluated by MS and TDDFT theoretical calculations, respectively. Finally, Rhod-NO2 was successfully applied to monitor NTR production during Escherichia coli (E. coli) growth, and to visually analyze NTR production in malignant oral cancer cells under hypoxia. Thus, Rhod-NO2 represents a new molecular tool to further understanding of the biological function of NTR.
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Affiliation(s)
- Yingyi Wang
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China
| | - Xiuping Meng
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China
| | - Ang Ma
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China
| | - Mengyao Sun
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China
| | - Shan Jiao
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China.
| | - Chengkun Wang
- Hospital of Stomatology, Jilin University, Qinghua Road 1500, Changchun 130021, China.
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Zhang Y, Zhang Q, Chu Z, Chen L, Chen J, Yang Y, Tang H, Cheng G, Ma A, Zhang Y, Wang C, Gao P, Xia F, Guo Q, Shi Q, Han G, Wang J, Zhu Y. Oridonin acts as a novel senolytics by targeting Glutathione S-Transferases to activate ROS-p38 signaling axis in senescent cells. Chem Commun (Camb) 2022; 58:13250-13253. [DOI: 10.1039/d2cc05278d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Most of the known senolytics are anti-cancer drugs or their derivative molecules. However, senolytics derived from the active ingredients of traditional Chinese medicine (TCM) are rarely reported. Here, we identified...
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Richardson E, Krishnan N, Stafford F, Yeates L, Nowak N, McGaughran J, Wildschutt J, Smith J, Turner C, Kevin L, Davis A, Macciocca I, Connell V, Ma A, Semsarian C, Bagnall R, Siggs O, Skinner J, MacArthur D, Ingles J. The Elusive Hearts Study: Seeking Genetic Diagnoses in Gene-elusive Cases of Rare Monogenic Cardiovascular Diseases. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.04.036] [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: 11/17/2022]
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Abulizi A, Hu L, Ma A, Shao FY, Zhu HZ, Lin SM, Shao GY, Xu Y, Ran JH, Li J, Zhou H, Lin DM, Wang LF, Li M, Yang BX. Ganoderic acid alleviates chemotherapy-induced fatigue in mice bearing colon tumor. Acta Pharmacol Sin 2021; 42:1703-1713. [PMID: 33927358 PMCID: PMC8463583 DOI: 10.1038/s41401-021-00669-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 10/05/2020] [Accepted: 03/23/2021] [Indexed: 02/02/2023] Open
Abstract
Chemotherapy-related fatigue (CRF) is increasingly being recognized as one of the severe symptoms in patients undergoing chemotherapy, which not only largely reduces the quality of life in patients, but also diminishes their physical and social function. At present, there is no effective drug for preventing and treating CRF. Ganoderic acid (GA), isolated from traditional Chinese medicine Ganoderma lucidum, has shown a variety of pharmacological activities such as anti-tumor, anti-inflammation, immunoregulation, etc. In this study, we investigated whether GA possessed anti-fatigue activity against CRF. CT26 tumor-bearing mice were treated with 5-fluorouracil (5-FU, 30 mg/kg) and GA (50 mg/kg) alone or in combination for 18 days. Peripheral and central fatigue-related behaviors, energy metabolism and inflammatory factors were assessed. We demonstrated that co-administration of GA ameliorated 5-FU-induced peripheral muscle fatigue-like behavior via improving muscle quality and mitochondria function, increasing glycogen content and ATP production, reducing lactic acid content and LDH activity, and inhibiting p-AMPK, IL-6 and TNF-α expression in skeletal muscle. Co-administration of GA also retarded the 5-FU-induced central fatigue-like behavior accompanied by down-regulating the expression of IL-6, iNOS and COX2 in the hippocampus through inhibiting TLR4/Myd88/NF-κB pathway. These results suggest that GA could attenuate 5-FU-induced peripheral and central fatigue in tumor-bearing mice, which provides evidence for GA as a potential drug for treatment of CRF in clinic.
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Affiliation(s)
- Abudumijiti Abulizi
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ling Hu
- Department of Anatomy and Laboratory of Neuroscience and Tissue Engineering, Basic Medical College, Chongqing Medical University, Chongqing, 400016, China
| | - Ang Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Fang-Yu Shao
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Hui-Ze Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Si-Mei Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Guang-Ying Shao
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Yue Xu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Jian-Hua Ran
- Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, 400016, China
| | - Jing Li
- Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, 400016, China
| | - Hong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Dong-Mei Lin
- JUNCAO Technology Research Institute, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Lian-Fu Wang
- JUNCAO Technology Research Institute, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Min Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
| | - Bao-Xue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China.
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Shao G, He J, Meng J, Ma A, Geng X, Zhang S, Qiu Z, Lin D, Li M, Zhou H, Lin S, Yang B. Ganoderic Acids Prevent Renal Ischemia Reperfusion Injury by Inhibiting Inflammation and Apoptosis. Int J Mol Sci 2021; 22:10229. [PMID: 34638569 PMCID: PMC8508562 DOI: 10.3390/ijms221910229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/17/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 12/16/2022] Open
Abstract
Renal ischemia reperfusion injury (RIRI) is one of the main causes of acute kidney injury (AKI), which can lead to acute renal failure. The development of RIRI is so complicated that it involves many factors such as inflammatory response, oxidative stress and cell apoptosis. Ganoderic acids (GAs), as one of the main pharmacological components of Ganoderma lucidum, have been reported to possess anti-inflammatory, antioxidant, and other pharmacological effects. The study is aimed to investigate the protective effect of GAs on RIRI and explore related underlying mechanisms. The mechanisms involved were assessed by a mouse RIRI model and a hypoxia/reoxygenation model. Compared with sham-operated group, renal dysfunction and morphological damages were relieved markedly in GAs-pretreatment group. GAs pretreatment could reduce the production of pro-inflammatory factors such as IL-6, COX-2 and iNOS induced by RIRI through inhibiting TLR4/MyD88/NF-kB signaling pathway. Furthermore, GAs reduced cell apoptosis via the decrease of the ratios of cleaved caspase-8 and cleaved caspase-3. The experimental results suggest that GAs prevent RIRI by alleviating tissue inflammation and apoptosis and might be developed as a candidate drug for preventing RIRI-induced AKI.
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Affiliation(s)
- Guangying Shao
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Jinzhao He
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Jia Meng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Ang Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Xiaoqiang Geng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Shun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Zhiwei Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Dongmei Lin
- Fuzhou Institute of Green Valley Bio-Pharm Technology, Fuzhou 350002, China; (D.L.); (S.L.)
- JUNCAO Technology Research Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Min Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Hong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
| | - Shuqian Lin
- Fuzhou Institute of Green Valley Bio-Pharm Technology, Fuzhou 350002, China; (D.L.); (S.L.)
- JUNCAO Technology Research Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Baoxue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (G.S.); (J.H.); (J.M.); (A.M.); (X.G.); (S.Z.); (Z.Q.); (M.L.); (H.Z.)
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing 100816, China
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20
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Ma A, Kim J, Miller CE, Mustapich TL, Abraham JP, Downie SA, Mishall PL. Pointing in a different direction: a case of bilateral absence of extensor indicis. Folia Morphol (Warsz) 2021; 81:520-525. [PMID: 33778941 DOI: 10.5603/fm.a2021.0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/05/2021] [Indexed: 11/25/2022]
Abstract
Understanding anatomical variations, as well as, normal anatomy of the muscles and tendons of the hand is vital for successful clinical evaluation and surgery. A number of extensor muscle and tendon variations have been reported in the literature including duplication, triplication, and absence. We report a rare anatomical variation that includes bilateral absence of the extensor indicis (EI) muscles and bilateral duplication of the extensor digitorum (ED) tendon to the second digit in the forearm of an 83-year-old male cadaver during routine upper limbs dissection. In the present case, only three muscles were present in the deep compartment: extensor pollicis longus (EPL), extensor pollicis brevis (EPB), and abductor pollicis longus (APL) with bilateral absence of EI. The reported prevalence of bilateral absence of EI muscle and tendon ranges from 0.5 to 3.5% [1, 26]. The prevalence of an additional index tendon arising bilaterally from the ED muscle belly is 3.2 % of the population [1]. Extension of the index finger is governed by the actions of EI and ED. However, the four tendons of ED are linked to each other by juncturae tendinum (JT), restricting independent extension of the digits in certain postures, e.g. when the hand is fisted. With fisted hand, EI controls extension of the index finger. Clinically, EI tendons are used for tendon reconstruction procedures to restore function to the hand and thumb after trauma or tendon rupture. This report highlights the importance of anticipating anatomical variations and conducting pre-operative evaluations to confirm the presence of EI when planning tendon transfer procedures.
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Affiliation(s)
- A Ma
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - J Kim
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - C E Miller
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - T L Mustapich
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - J P Abraham
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - S A Downie
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Physical Medicine and Rehabilitation, Albert Einstein College of Medicine, Bronx, NY, United States
| | - P L Mishall
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States. .,Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY, United States.
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21
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Luo L, Wang Y, Du Y, Dong C, Ma A, Wang T. MOG1 restores the expression and function of SCN5A-p.R104W through sec23a-mediated forward trafficking. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0344] [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: 11/14/2022] Open
Abstract
Abstract
Background
Brugada syndrome (BrS) is an inherited disease which causes fatal arrhythmias and sudden cardiac death. Mutations in SCN5A gene, which encoding cardiac sodium channel (NaV1.5), are the most common genotype of BrS patients. Some SCN5A-related variants were reported to retain NaV1.5 in endoplasmic reticulum (ER) due to trafficking deficiency. MOG1 was previously reported to interact with NaV1.5 and increased sodium current (INa) through enhancing the trafficking. However, its molecular mechanisms are still unclear. Coat protein complex II (COPII) is responsible for the ER to Golgi transport. Sec23 forms the inner coat of COPII and participates in cargo proteins selection.
Purpose
To demonstrate that MOG1 rescues SCN5A-related variants by enhancing the forward trafficking through Sec23a-NaV1.5 interaction.
Methods
Site directed mutagenesis, immunofluorescence staining, biotinylation assay, Western blot analysis and whole-cell patch clamp recording were used. CRISPR/Cas9 was used to knock out Sec23a expression in HEK293 cells.
Results
We found that SCN5A-p.R104W was characterized as reduced NaV1.5 level and lack of INa. The variant SCN5A-p.R104W was mainly distributed in ER. MOG1 could rescue the total and surface expression of SCN5A-p.R104W but could not restore INa (Figure 1a). Considering that most patients are heterozygous, co-transfection of SCN5A-WT and SCN5A-p.R104W were obtained. We found MOG1 could increase both NaV1.5 level and INa of heterozygous expressed SCN5A-p.R104W. We further revealed an interaction between NaV1.5 and Sec23a by co-immunoprecipitation (Co-IP) assay. The interaction between NaV1.5 and Sec23a was increased by MOG1, which indicates that Sec23a participates in MOG1-mediated increase in NaV1.5 level (Figure 1b). Knockout of Sec23a reduced cell surface, but not total, NaV1.5 level (Figure 1c and 1d). Next, the Sec23a knockout HEK293 cells were co-transfected with SCN5A-p.R104W and pcDNA3 or MOG1. MOG1 could not increase SCN5A-p.R104W protein level in Sec23a knockout cells.
Conclusion
Our data demonstrated a novel mechanism that MOG1 restores the expression and function of SCN5A-p.R104W by enhancing its forward trafficking through Sec23a-NaV1.5 interaction.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Natural Science Foundation of China
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Affiliation(s)
- L Luo
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - Y Wang
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - Y Du
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - C Dong
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - A Ma
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - T Wang
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
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22
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Xue Y, Ma Q, Chen S, Wang X, Ma A. U-shaped association of sphingosine-1-phosphate level with mortality in chronic systolic heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0953] [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: 11/14/2022] Open
Abstract
Abstract
Background
The immunomodulatory molecule sphingosine-1-phosphate (S1P) has received attention in the cardiovascular field due to its significant cardioprotective effects, as revealed in animal studies. Until now, it has been unclear what is the normal range of S1P in chronic heart failure patients and whether it is related to long term prognosis.
Purpose
The purpose of our study was to identify the distribution characteristics of S1P in systolic heart failure patients and the prognostic value of S1P for long-term prognosis.
Methods
We recruited 210 chronic systolic heart failure patients from June 2014 to December 2015. Meanwhile 54 healthy people in the same area were selected as controls. Plasma S1P was measured by mass spectrometry. Patients were grouped according to the baseline S1P level quartiles, and restricted cubic spline plots described a U-shaped association between S1P and all cause death. Cox proportional hazard analysis was used to determine the relationship between category of S1P and all-cause death. Survival curves were using the Kaplan-Meier method and the log-rank test was used for comparison.
Results
Compared with the control group, the plasma S1P in chronic heart failure patients demonstrated a higher mean level (1.269 μmol/L vs 1.122 μmol/L, P=0.006) and a larger standard deviation (0.441 vs 0.316, P=0.022). After a follow-up period of 31.7±10.3 months, the second quartile (0.967–1.192μml/L) with largely normal S1P levels had the lowest all-cause mortality and either an increase (HR=3.87, 95% CI 1.504–9.960, P=0.005, adjusted HR=3.134, 95% CI 1.211–8.111, P=0.019) or a decrease (HR=3.271, 95% CI 1.277–8.381, P=0.014, adjusted HR=1.90, 95% CI 0.711–5.083, P=0.200) predicted a worse prognosis.
Conclusions
Plasma S1P levels in systolic heart failure patients are related to the long-term all-cause mortality with a U-shaped correlation. Through restoring abnormal levels to a normal range instead of simply up regulation or down regulation, S1P may have the potential to be a therapeutic target for reducing the risk of death in patients with heart failure in the future.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Ministry of Science and Technology of the People's Republic of China. Ministry of Finance of the People's Republic of China.
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Affiliation(s)
- Y Xue
- First Affiliated Hospital of Xi'an Jiaotong University, Department of Cardiovascular Medicine, Xi'an, China
| | - Q Ma
- First Affiliated Hospital of Xi'an Jiaotong University, Department of Cardiovascular Medicine, Xi'an, China
| | - S Chen
- First Affiliated Hospital of Xi'an Jiaotong University, Department of Cardiovascular Medicine, Xi'an, China
| | - X Wang
- First Affiliated Hospital of Xi'an Jiaotong University, Department of Cardiovascular Medicine, Xi'an, China
| | - A Ma
- First Affiliated Hospital of Xi'an Jiaotong University, Department of Cardiovascular Medicine, Xi'an, China
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Zhou T, Wang L, Ma A, Zhang Y, Rui M. PMU26 The Health-Related Quality of Life in Different Disease Population Based on EQ-5D-5L: A Systematic Review. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.384] [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: 10/23/2022]
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Geng X, Zhang S, He J, Ma A, Li Y, Li M, Zhou H, Chen G, Yang B. The urea transporter UT-A1 plays a predominant role in a urea-dependent urine-concentrating mechanism. J Biol Chem 2020; 295:9893-9900. [PMID: 32461256 PMCID: PMC7380188 DOI: 10.1074/jbc.ra120.013628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/27/2020] [Revised: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Urea transporters are a family of urea-selective channel proteins expressed in multiple tissues that play an important role in the urine-concentrating mechanism of the mammalian kidney. Previous studies have shown that knockout of urea transporter (UT)-B, UT-A1/A3, or all UTs leads to urea-selective diuresis, indicating that urea transporters have important roles in urine concentration. Here, we sought to determine the role of UT-A1 in the urine-concentrating mechanism in a newly developed UT-A1-knockout mouse model. Phenotypically, daily urine output in UT-A1-knockout mice was nearly 3-fold that of WT mice and 82% of all-UT-knockout mice, and the UT-A1-knockout mice had significantly lower urine osmolality than WT mice. After 24-h water restriction, acute urea loading, or high-protein (40%) intake, UT-A1-knockout mice were unable to increase urine-concentrating ability. Compared with all-UT-knockout mice, the UT-A1-knockout mice exhibited similarly elevated daily urine output and decreased urine osmolality, indicating impaired urea-selective urine concentration. Our experimental findings reveal that UT-A1 has a predominant role in urea-dependent urine-concentrating mechanisms, suggesting that UT-A1 represents a promising diuretic target.
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Affiliation(s)
- Xiaoqiang Geng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Shun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jinzhao He
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Ang Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yingjie Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Min Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Hong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Guangping Chen
- Department of Physiology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Baoxue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
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Geng XQ, Ma A, He JZ, Wang L, Jia YL, Shao GY, Li M, Zhou H, Lin SQ, Ran JH, Yang BX. Ganoderic acid hinders renal fibrosis via suppressing the TGF-β/Smad and MAPK signaling pathways. Acta Pharmacol Sin 2020; 41:670-677. [PMID: 31804606 PMCID: PMC7468553 DOI: 10.1038/s41401-019-0324-7] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 09/20/2019] [Indexed: 12/15/2022] Open
Abstract
Renal fibrosis is considered as the pathway of almost all kinds of chronic kidney diseases (CKD) to the end stage of renal diseases (ESRD). Ganoderic acid (GA) is a group of lanostane triterpenes isolated from Ganoderma lucidum, which has shown a variety of pharmacological activities. In this study we investigated whether GA exerted antirenal fibrosis effect in a unilateral ureteral obstruction (UUO) mouse model. After UUO surgery, the mice were treated with GA (3.125, 12.5, and 50 mg· kg-1 ·d-1, ip) for 7 or 14 days. Then the mice were sacrificed for collecting blood and kidneys. We showed that GA treatment dose-dependently attenuated UUO-induced tubular injury and renal fibrosis; GA (50 mg· kg-1 ·d-1) significantly ameliorated renal disfunction during fibrosis progression. We further revealed that GA treatment inhibited the extracellular matrix (ECM) deposition in the kidney by suppressing the expression of fibronectin, mainly through hindering the over activation of TGF-β/Smad signaling. On the other hand, GA treatment significantly decreased the expression of mesenchymal cell markers alpha-smooth muscle actin (α-SMA) and vimentin, and upregulated E-cadherin expression in the kidney, suggesting the suppression of tubular epithelial-mesenchymal transition (EMT) partially via inhibiting both TGF-β/Smad and MAPK (ERK, JNK, p38) signaling pathways. The inhibitory effects of GA on TGF-β/Smad and MAPK signaling pathways were confirmed in TGF-β1-stimulated HK-2 cell model. GA-A, a GA monomer, was identified as a potent inhibitor on renal fibrosis in vitro. These data demonstrate that GA or GA-A might be developed as a potential therapeutic agent in the treatment of renal fibrosis.
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Affiliation(s)
- Xiao-Qiang Geng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ang Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Jin-Zhao He
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Liang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ying-Li Jia
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Guang-Ying Shao
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Min Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Hong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Shu-Qian Lin
- Fuzhou Institute of Green Valley Bio-Pharm Technology, Fuzhou, 350002, China
- JUNCAO Technology Research Institute, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jian-Hua Ran
- Department of Anatomy, and Laboratory of Neuroscience and Tissue Engineering, Basic Medical College, Chongqing Medical University, Chongqing, 400016, China
| | - Bao-Xue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China.
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26
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Morita PP, Rocha AS, Shaker G, Lee D, Wei J, Fong B, Thatte A, Karimi A, Xu L, Ma A, Wong A, Boger J. Comparative Analysis of Gait Speed Estimation Using Wideband and Narrowband Radars, Thermal Camera, and Motion Tracking Suit Technologies. J Healthc Inform Res 2020; 4:215-237. [PMID: 35415448 PMCID: PMC8982681 DOI: 10.1007/s41666-020-00071-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/17/2020] [Accepted: 01/27/2020] [Indexed: 01/14/2023]
Abstract
AbstractResearch has shown that cognitive and physical functioning of older adults can be reflected in indicators such as walking speed. While changes in cognition, mobility, or health cause changes in gait speed, often gradual variations in walking speed go undetected until severe problems arise. Discrete clinical assessments during clinical consultations often fail to detect changes in day-to-day walking speeds and do not reflect walking speeds in everyday environments, where most of the mobility issues happen. In this paper, we compare four walking speed measurement technologies to a GAITRite mat (gold standard): (1) an ultra wideband radar (covering the band from 3.3 GHz to 10 GHz), (2) a narrow band 24-GHz radar (with a bandwidth of 250 MHz), (3) a perception Neuron Motion Tracking suit, and (4) a thermal camera. Data were collected in parallel using all sensors at the same time for 10 healthy adults for normal and slow walking paces. A comparison of the sensors indicates better performance at lower gait speeds, with offsets (when compared to GAITRite) between 0.1 and 20% for the ultra wideband radar, 1.9 and 17% for the narrowband radar, 0.1 and 38% for the thermal camera, and 1.7 and 38% for the suit. This paper supports the potential of unobtrusive radar-based sensors and thermal camera technologies for ambient autonomous gait speed monitoring for contextual, privacy-preserving monitoring of participants in the community.
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Affiliation(s)
- P. P. Morita
- School of Public Health and Health Systems, University of Waterloo, Waterloo, ON Canada
- Centre for Global eHealth Innovation, Techna Institute, University Health Network, Toronto, ON Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON Canada
- Research Institute for Aging, Waterloo, ON Canada
| | - A. S. Rocha
- School of Public Health and Health Systems, University of Waterloo, Waterloo, ON Canada
- Goiano Federal Institute, Trindade, GO Brazil
| | - G. Shaker
- Research Institute for Aging, Waterloo, ON Canada
- Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON Canada
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON Canada
- Waterloo Artificial Intelligence Institute, Waterloo, ON Canada
| | - D. Lee
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON Canada
| | - J. Wei
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - B. Fong
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON Canada
| | - A. Thatte
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - A. Karimi
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - L. Xu
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - A. Ma
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - A. Wong
- Research Institute for Aging, Waterloo, ON Canada
- Waterloo Artificial Intelligence Institute, Waterloo, ON Canada
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - J. Boger
- Research Institute for Aging, Waterloo, ON Canada
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
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Ren T, Ma A, Zhuo R, Zhang H, Peng L, Jin X, Yao E, Yang L. Oleoylethanolamide Increases Glycogen Synthesis and Inhibits Hepatic Gluconeogenesis via the LKB1/AMPK Pathway in Type 2 Diabetic Model. J Pharmacol Exp Ther 2020; 373:81-91. [PMID: 32024803 DOI: 10.1124/jpet.119.262675] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Oleoylethanolamide (OEA) is an endogenous peroxisome proliferator-activated receptor α (PPARα) agonist that acts on the peripheral control of energy metabolism. However, its therapeutic potential and related mechanisms in hepatic glucose metabolism under type 2 diabetes mellitus (T2DM) are not clear. Here, OEA treatment markedly improved glucose homeostasis in a PPARα-independent manner. OEA efficiently promoted glycogen synthesis and suppressed gluconeogenesis in mouse primary hepatocytes and liver tissue. OEA enhanced hepatic glycogen synthesis and inhibited gluconeogenesis via liver kinase B1 (LKB1)/5' AMP-activated protein kinase (AMPK) signaling pathways. PPARα was not involved in the roles of OEA in the LKB1/AMPK pathways. We found that OEA exerts its antidiabetic effect by increasing glycogenesis and decreasing gluconeogenesis via the LKB1/AMPK pathway. The ability of OEA to control hepatic LKB1/AMPK pathways may serve as a novel therapeutic approach for the treatment of T2DM. SIGNIFICANCE STATEMENT: Oleoylethanolamide (OEA) exerted a potent antihyperglycemic effect in a peroxisome proliferator-activated receptor α-independent manner. OEA played an antihyperglycemic role primarily via regulation of hepatic glycogen synthesis and gluconeogenesis. The main molecular mechanism of OEA in regulating liver glycometabolism is activating the liver kinase B1/5' AMP-activated protein kinase signaling pathways.
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Affiliation(s)
- Tong Ren
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Ang Ma
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Rengong Zhuo
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Huaying Zhang
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Lu Peng
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Xin Jin
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Enhui Yao
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
| | - Lichao Yang
- Xiamen Key Laboratory of Chiral Drugs, School of Medicine, Xiamen University, Xiamen, China (T.R., A.M., R.Z., H.Z., L.P., X.J., L.Y.) and Department of Cardiology, Fujian Medical University Union Hospital, Fujian Institute of Coronary Artery Disease, Fujian Heart Medical Center, Fuzhou, China (E.Y.)
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Hao JP, Ma A. The ratio of miR-21/miR-24 as a promising diagnostic and poor prognosis biomarker in colorectal cancer. Eur Rev Med Pharmacol Sci 2020; 22:8649-8656. [PMID: 30575905 DOI: 10.26355/eurrev_201812_16629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Optimal management of cancer treatment will be guided by sensitive and specific biomarkers. Searching for potential biomarkers is always a hot spot in cancer research, including colorectal cancer (CRC). MicroRNAs (miRNAs) have been recently proposed as biomarkers for cancers. PATIENTS AND METHODS Based on previous miRNA analysis in our hospital and data mining, we hypothesized that the ratio of miR-21/miR-24 (miR-21/24) may serve as plasma biomarkers in CRC patients. The plasma levels of miR-21 and miR-24 were analyzed from the 186 CRC patients before surgery and 97 healthy controls by qRT-PCR. Receiver operating characteristic (ROC) analysis was further used to evaluate the difference in diagnostic accuracy associated with the expression of miR-21, miR-24 and their ratio. Chi-square2-test or Fisher's exact test was performed to determine the relationship between the ratio of miR-21/24 and clinicopathological parameters. Kaplan-Meier and log-rank testing were performed to evaluate the effect of miR-21/24 ratio on the survival of colon cancer. Hazard ratios (HRs) and corresponding 95% confidence intervals (CIs) were calculated by Cox regression models. RESULTS ROC curves revealed that the diagnostic accuracy AUC (area under the curve) in CRC tissue of miR-24, miR-21, and the ratio of miR-21/24 were 0.8971, 0.9128 and 0.9875, respectively. Notably, the ratio of miR-21/24, with the best accuracy among these miRNAs, was significantly correlated with several important prognosis factors in CRC, such as tumor size, TNM stage, lymph metastasis and histologic differentiation (all p<0.05). By Kaplan-Meier survival analysis and Cox regression analysis, the ratio of miR-21/24 was shown to be a significant survival risk factor for CRC patients. CONCLUSIONS We showed that the plasma ratio of miR-21/24 is a potentially powerful tool for detecting CRC and predicting prognosis.
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Affiliation(s)
- J-P Hao
- Department of Colorectal Surgery, the Second Hospital of Tianjin Medical University, Hexi District, Tianjin, China.
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Ma A, Wong DK, Feld J. A192 GRADE OF ACTIVITY AND FIBROSIS IS SIMILAR IN EAG- AND EAG+ IMMUNE ACTIVE HBV-INFECTED LIVER BIOPSIES. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.191] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Ma
- Division of Gastroenterology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - D K Wong
- Medicine, University Health Network University of Toronto, Toronto, ON, Canada
| | - J Feld
- Medicine, University Health Network University of Toronto, Toronto, ON, Canada
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de Almeida TP, van Schie MMCH, Ma A, Tieves F, Younes SHH, Fernández-Fueyo E, Arends IWCE, Riul A, Hollmann F. Efficient Aerobic Oxidation of trans
-2-Hexen-1-ol using the Aryl Alcohol Oxidase from Pleurotus eryngii. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801312] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- T. P. de Almeida
- Department of Biotechnology; Delft University of Technology, The; Netherlands
| | | | - A. Ma
- Department of Biotechnology; Delft University of Technology, The; Netherlands
| | - F. Tieves
- Department of Biotechnology; Delft University of Technology, The; Netherlands
| | - S. H. H. Younes
- Department of Biotechnology; Delft University of Technology, The; Netherlands
- Department of Chemistry, Faculty of Science; Sohag University; Sohag 82524 Egypt
| | - E. Fernández-Fueyo
- Department of Biotechnology; Delft University of Technology, The; Netherlands
| | | | - A. Riul
- Department of Applied Physics, “Gleb Wataghin” Institute of Physics (IFGW); University of Campinas (UNICAMP), SP; Brazil
| | - F. Hollmann
- Department of Biotechnology; Delft University of Technology, The; Netherlands
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Ma A, Liu LW. A304 A CASE REPORT ILLUSTRATING THE NATURAL PROGRESSION OF TYPE 3 TO TYPE 2 ACHALASIA. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.304] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Ma
- Gastroenterology, University of Toronto, Toronto, ON, Canada
| | - L W Liu
- Medicine, University Health Network, Toronto, ON, Canada
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Lu Q, Bai L, Liu P, Wang Y, Huo J, Yuan Z, Du X, Ma A. Cardiac Rupture Complicating Acute Myocardial Infarction in the Percutaneous Coronary Intervention Era: Clinical Features. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.583] [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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Powderly J, Patel M, Lee J, Brody J, Meric-Bernstam F, Hamilton E, Ponce Aix S, Garcia-Corbacho J, Bang YJ, Ahn MJ, Rha S, Kim KP, Gil Martin M, Wang H, Lazorchak A, Wyant T, Ma A, Agarwal S, Tuck D, Daud A. CA-170, a first in class oral small molecule dual inhibitor of immune checkpoints PD-L1 and VISTA, demonstrates tumor growth inhibition in pre-clinical models and promotes T cell activation in Phase 1 study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx376.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Luo L, Ning F, Du Y, Song B, Yang D, Salvage SC, Wang Y, Fraser JA, Zhang S, Ma A, Wang T. Calcium-dependent Nedd4-2 upregulation mediates degradation of the cardiac sodium channel Nav1.5: implications for heart failure. Acta Physiol (Oxf) 2017; 221:44-58. [PMID: 28296171 DOI: 10.1111/apha.12872] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/08/2016] [Accepted: 03/03/2017] [Indexed: 12/18/2022]
Abstract
AIM Reductions in voltage-gated sodium channel (Nav1.5) function/expression provide a slowed-conduction substrate for cardiac arrhythmias. Nedd4-2, which is activated by calcium, post-translationally modulates Nav1.5. We aim to investigate whether elevated intracellular calcium ([Ca2+ ]i ) reduces Nav1.5 through Nedd4-2 and its role in heart failure (HF). METHODS Using a combination of biochemical, electrophysiological, cellular and in vivo methods, we tested the effect and mechanism of calcium on Nedd4-2 and in turn Nav1.5. RESULTS Increased [Ca2+ ]i , following 24-h ionomycin treatment, decreased sodium current (INa ) density and Nav1.5 protein without altering its mRNA in both neonatal rat cardiomyocytes (NRCMs) and HEK 293 cells stably expressing Nav1.5. The calcium chelator BAPTA-AM restored the reduced Nav1.5 and INa in NRCMs pre-treated by ionomycin. Nav1.5 was decreased by Nedd4-2 transfection and further decreased by 6-h ionomycin treatment. These effects were not observed in cells transfected with the catalytically inactive mutant, Nedd4-2 C801S, or with Y1977A-Nav1.5 mutant containing the impaired Nedd4-2 binding motif. Furthermore, elevated [Ca2+ ]i increased Nedd4-2, the interaction between Nedd4-2 and Nav1.5, and Nav1.5 ubiquitination. Nav1.5 protein is decreased, whereas Nedd4-2 is increased in volume-overload HF rat hearts, with increased co-localization of Nav1.5 with ubiquitin or Nedd4-2 as indicated by immunofluorescence staining. BAPTA-AM rescued the reduced Nav1.5 protein, INa and increased Nedd4-2 in hypertrophied NRCMs induced by isoproterenol or angiotensin II. CONCLUSION Calcium-mediated increases in Nedd4-2 downregulate Nav1.5 by ubiquitination. Nav1.5 is downregulated and co-localizes with Nedd4-2 and ubiquitin in failing rat heart. These data suggest a role of Nedd4-2 in Nav1.5 downregulation in HF.
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Affiliation(s)
- L. Luo
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - F. Ning
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - Y. Du
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - B. Song
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - D. Yang
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - S. C. Salvage
- Physiological Laboratory; University of Cambridge; Cambridge UK
| | - Y. Wang
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - J. A. Fraser
- Physiological Laboratory; University of Cambridge; Cambridge UK
| | - S. Zhang
- Department of Biomedical and Molecular Sciences; Queen's University; Kingston Ontario Canada
| | - A. Ma
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Key Laboratory of Molecular Cardiology; Xi'an Shaanxi Province China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University); Ministry of Education; Xi'an China
| | - T. Wang
- Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Key Laboratory of Molecular Cardiology; Xi'an Shaanxi Province China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University); Ministry of Education; Xi'an China
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Ma A, Wang D, An Y, Fang W, Zhu H. Comparative transcriptomic analysis of mice liver treated with different AMPK activators in a mice model of atherosclerosis. Oncotarget 2017; 8:16594-16604. [PMID: 28178661 PMCID: PMC5369987 DOI: 10.18632/oncotarget.15027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/24/2017] [Indexed: 12/30/2022] Open
Abstract
Atherosclerosis is known to be the primary underlying factor responsible for the development of cardiovascular diseases. Suppression of AMP-activated protein kinase stimulates arterial deposition of excess lipids, resulting in the development of atherosclerotic lesions. In this study we successfully developed the disease model of mice and mimicked the therapeutic effect, for that we chose three different AMP-activated protein kinase activators (IMM-H007, A-769662 and Metformin) to identify which one has a superior effect in the atherosclerosis model. We combined the transcriptomes of four groups of mice liver including high-fat diet group and the experimental groups treated with different AMP-activated protein kinase activators. We analyzed the increased genes to candidate metabolic and disease pathways. Compared to the high-fat diet group, a total of 799 differentially expressed genes were identified in treatment groups. There were 291, 473, and 323 differentially expressed genes in H007, Metformin, and A-769662 group respectively. And seven statistically significant pathways were observed in both H007 and Metformin groups. We expect that gene expression profiling in the mice model would extend our understanding of atherosclerosis in the molecular level. This study provides a fundamental framework for future clinical research on human atherosclerosis and new clues for developing novel drugs for the treatment of atherosclerosis.
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Affiliation(s)
- Ang Ma
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, China.,Department of Basic Medical Sciences, Medical College, Xiamen University, Xiamen, China
| | - Dongmei Wang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Yuanyuan An
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Wei Fang
- Department of Nuclear Medicine, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, China
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Ma A, Wang J, Yang L, An Y, Zhu H. AMPK activation enhances the anti-atherogenic effects of high density lipoproteins in apoE -/- mice. J Lipid Res 2017; 58:1536-1547. [PMID: 28611100 PMCID: PMC5538277 DOI: 10.1194/jlr.m073270] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 05/30/2017] [Indexed: 12/12/2022] Open
Abstract
HDL plays crucial roles at multiple stages of the pathogenesis of atherosclerosis. AMP-activated protein kinase (AMPK) is a therapeutic candidate for the treatment of cardiovascular disease. However, the effect of AMPK activation on HDL functionality has not been established in vivo. We assessed the effects of pharmacological AMPK activation using A-769662, AICAR, metformin, and IMM-H007 on the atheroprotective functions of HDL in apoE-deficient (apoE−/−) mice fed with a high-fat diet. After administration, there were no changes in serum lipid levels among the groups. However, mice treated with AMPK activators showed significantly enhanced reverse cholesterol transport in vivo and in vitro. AMPK activation also increased the expression of ABCA1 and ABCG1 in macrophages and scavenger receptor class B type I and LCAT in the liver. HDL from AMPK activation mice exhibited lower HDL inflammatory index and myeloperoxidase activity and higher paraoxonase 1 activity than HDL from untreated mice, implying superior antioxidant and anti-inflammatory capacities. Pharmacological AMPK activation also induced polarization of macrophages to the M2 state and reduced plasma lipid peroxidation, inflammatory cytokine production, and atherosclerotic plaque formation in apoE−/− mice. These observations suggest that pharmacological AMPK activation enhances the anti-atherogenic properties of HDL in vivo. This likely represents a key mechanism by which AMPK activation attenuates atherosclerosis.
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Affiliation(s)
- Ang Ma
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jing Wang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Liu Yang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yuanyuan An
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
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Muttusamy T, Ma A, Sinnerbrink I, Quinton AE, Peek MJ, Joung S. Prenatal sonographic features of cranioectodermal dysplasia. Prenat Diagn 2017; 37:628-630. [DOI: 10.1002/pd.5037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/10/2017] [Accepted: 03/14/2017] [Indexed: 11/12/2022]
Affiliation(s)
- T. Muttusamy
- Department of Obstetrics and Gynaecology at Nepean Hospital; New South Wales Australia
| | - A. Ma
- Department of Clinical Genetics; Nepean Hospital; New South Wales Australia
- Disciplines of Genetic Medicine, Child and Adolescent Health, Children's Hospital Westmead Clinical School; Sydney University; New South Wales Australia
| | - I. Sinnerbrink
- Department of Clinical Genetics; Nepean Hospital; New South Wales Australia
| | - A. E. Quinton
- Medical Sonography, School of Health, Medical and Applied Science; Central Queensland University; Australia
| | - M. J. Peek
- Medical School, College of Medicine, Biology and Environment; The Australian National University; Australia
| | - S. Joung
- Department of Obstetrics and Gynaecology at Nepean Hospital; New South Wales Australia
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Song L, Ma A, Dun H, Hu Y, Fujii Y, Kinugasa F, Oshima S, Higashi Y, Daloze P, Chen H. ASP2409, A Next-Generation CTLA4-Ig, Versus Belatacept in Renal Allograft Survival in Cynomolgus Monkeys. Am J Transplant 2017; 17:635-645. [PMID: 27598231 DOI: 10.1111/ajt.14039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 08/11/2016] [Accepted: 08/30/2016] [Indexed: 01/25/2023]
Abstract
Belatacept is the first costimulatory blockade agent approved for maintenance immunosuppression in kidney transplant recipients. Clinical results have indicated that belatacept is associated with superior renal function and improved metabolic profile; however, higher incidence of acute rejection and posttransplant lymphoproliferative disorder are the shortcomings of this agent. In this study, ASP2409, a new cytotoxic T-lymphocyte associated protein 4-immunoglobulin possessing 14-fold higher in vitro CD86 binding affinity than belatacept, was tested for renal allograft survival in cynomolgus monkeys. ASP2409 monotherapy dose-dependently prolonged renal allograft survival. Low-dose ASP2409 in combination with a subtherapeutic dose of tacrolimus showed much longer median survival time than monotherapy. Similar allograft survival results were observed in regimens based on high-dose ASP2409, belatacept, and therapeutic-dose tacrolimus. The results of renal allograft histopathology with high-dose ASP2409-based regimens were not inferior to the belatacept-based regimen. Moreover, higher frequencies of FoxP3-positive regulatory T cells in renal allografts were observed in ASP2409- and belatacept-based regimens compared with tacrolimus-based regimens. No serious side effects related to ASP2409 administration were found during the study. These data suggest that ASP2409 is a promising candidate for calcineurin inhibitor-sparing or -avoidance regimens.
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Affiliation(s)
- L Song
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
| | - A Ma
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
| | - H Dun
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Y Hu
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Y Fujii
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - F Kinugasa
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - S Oshima
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - Y Higashi
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - P Daloze
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
| | - H Chen
- Department of Surgery, Research Center, CHUM, Notre-Dame Hospital, University of Montreal, Montreal, Quebec, Canada
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Wang J, Ma A, Zhao M, Zhu H. AMPK activation reduces the number of atheromata macrophages in ApoE deficient mice. Atherosclerosis 2017; 258:97-107. [PMID: 28235712 DOI: 10.1016/j.atherosclerosis.2017.01.036] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 01/14/2017] [Accepted: 01/31/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS CC chemokine receptor 2 (Ccr2) governs migration of inflammatory Ly6Chi monocytes from the bone marrow (BM) to the circulating blood, which is a key step for macrophage accumulation during progression of atherosclerosis. Hyperlipidemia is often accompanied by low AMP-activated kinase (AMPK) activity and increased expression of Ccr2. The aim of this study was to examine whether there is a link between AMPK and chemokine networks. METHODS ApoE-/- mice were fed a western diet and treated daily with AMPK activators (AICAR, A769662, or Metformin) or vehicle for 10 weeks. The effect of AMPK activators on pro-inflammatory myeloid cell numbers within the BM, blood, spleen, and aorta of ApoE-/- mice was then examined. RESULTS We found that AMPK activation significantly reduced the number of Ly6Chi monocytes in the blood and atherosclerotic plaques. This reduction was caused by down-regulation of Ccr2 protein expression, which inhibited Ccr2-mediated migration of Ly6Chi monocytes from the BM to the circulation. There was no effect on proliferation or apoptosis of BM-derived Ly6Chi monocytes. AMPK activation caused Ly6Chi monocytes to accumulate in the BM, with a concomitant reduction in numbers in the blood and spleen. CONCLUSIONS AMPK activation reduces the formation of atheromata-inducing macrophages in ApoE-/--deficient mice by inhibiting expression of Ccr2, thereby preventing the Ccr2-mediated migration of Ly6Chi monocytes from the BM. Therefore, AMPK may be a promising target for the treatment of atherosclerosis.
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Affiliation(s)
- Jing Wang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, China
| | - Ang Ma
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, China
| | - Ming Zhao
- Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, USA.
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, China.
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Gray C, Hildrew A, Lu X, Ma A, McElroy D, Monteith D, O’Gorman E, Shilland E, Woodward G. Recovery and Nonrecovery of Freshwater Food Webs from the Effects of Acidification. ADV ECOL RES 2016. [DOI: 10.1016/bs.aecr.2016.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Studer P, da Silva CG, Revuelta Cervantes JM, Mele A, Csizmadia E, Siracuse JJ, Damrauer SM, Peterson CR, Candinas D, Stroka DM, Ma A, Bhasin M, Ferran C. Significant lethality following liver resection in A20 heterozygous knockout mice uncovers a key role for A20 in liver regeneration. Cell Death Differ 2015; 22:2068-77. [PMID: 25976305 PMCID: PMC4816110 DOI: 10.1038/cdd.2015.52] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 02/24/2015] [Accepted: 03/13/2015] [Indexed: 12/14/2022] Open
Abstract
Hepatic expression of A20, including in hepatocytes, increases in response to injury, inflammation and resection. This increase likely serves a hepatoprotective purpose. The characteristic unfettered liver inflammation and necrosis in A20 knockout mice established physiologic upregulation of A20 as integral to the anti-inflammatory and anti-apoptotic armamentarium of hepatocytes. However, the implication of physiologic upregulation of A20 in modulating hepatocytes' proliferative responses following liver resection remains controversial. To resolve the impact of A20 on hepatocyte proliferation and the liver's regenerative capacity, we examined whether decreased A20 expression, as in A20 heterozygous knockout mice, affects outcome following two-third partial hepatectomy. A20 heterozygous mice do not demonstrate a striking liver phenotype, indicating that their A20 expression levels are still sufficient to contain inflammation and cell death at baseline. However, usually benign partial hepatectomy provoked a staggering lethality (>40%) in these mice, uncovering an unsuspected phenotype. Heightened lethality in A20 heterozygous mice following partial hepatectomy resulted from impaired hepatocyte proliferation due to heightened levels of cyclin-dependent kinase inhibitor, p21, and deficient upregulation of cyclins D1, E and A, in the context of worsened liver steatosis. A20 heterozygous knockout minimally affected baseline liver transcriptome, mostly circadian rhythm genes. Nevertheless, this caused differential expression of >1000 genes post hepatectomy, hindering lipid metabolism, bile acid biosynthesis, insulin signaling and cell cycle, all critical cellular processes for liver regeneration. These results demonstrate that mere reduction of A20 levels causes worse outcome post hepatectomy than full knockout of bona fide liver pro-regenerative players such as IL-6, clearly ascertaining A20's primordial role in enabling liver regeneration. Clinical implications of these data are of utmost importance as they caution safety of extensive hepatectomy for donation or tumor in carriers of A20/TNFAIP3 single nucleotide polymorphisms alleles that decrease A20 expression or function, and prompt the development of A20-based liver pro-regenerative therapies.
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Affiliation(s)
- P Studer
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Visceral Surgery and Medicine, University Hospital Bern, Bern, Switzerland
| | - C G da Silva
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - J M Revuelta Cervantes
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - A Mele
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - E Csizmadia
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - J J Siracuse
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S M Damrauer
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - C R Peterson
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - D Candinas
- Department of Visceral Surgery and Medicine, University Hospital Bern, Bern, Switzerland
| | - D M Stroka
- Department of Visceral Surgery and Medicine, University Hospital Bern, Bern, Switzerland
| | - A Ma
- Division of Interdisciplinary Medicine and Biotechnology, Bioinformatics core, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - M Bhasin
- Division of Gastroenterology, Department of Medicine, University of California in San Francisco, San Fransisco, CA, USA
| | - C Ferran
- Division of Vascular Surgery, Center for Vascular biology Research and the Transplant Institute, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Zhou Y, Zhang XM, Ma A, Zhang YL, Chen YY, Zhou H, Li WJ, Jin X. Orally administrated pterostilbene attenuates acute cerebral ischemia–reperfusion injury in a dose- and time-dependent manner in mice. Pharmacol Biochem Behav 2015; 135:199-209. [DOI: 10.1016/j.pbb.2015.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 06/09/2015] [Accepted: 06/13/2015] [Indexed: 01/28/2023]
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Dong Y, Huang J, Li G, Li L, Li W, Li X, Liu X, Liu Z, Lu Y, Ma A, Sun H, Wang H, Wen X, Xu D, Yang J, Zhang J, Zhao H, Zhou J, Zhu L, Committee Members:, Bai L, Cao K, Chen M, Chen M, Dai G, Ding W, Dong W, Fang Q, Fang W, Fu X, Gao W, Gao R, Ge J, Ge Z, Gu F, Guo Y, Han H, Hu D, Huang W, Huang L, Huang C, Huang D, Huo Y, Jin W, Ke Y, Lei H, Li X, Li Y, Li D, Li G, Li X, Li Z, Liang Y, Liao Y, Liu G, Ma A, Ma C, Ma D, Ma Y, Shen L, Sun J, Sun C, Sun Y, Tang Q, Wan Z, Wang H, Wang J, Wang S, Wang D, Wang G, Wang J, Wu Y, Wu P, Wu S, Wu X, Wu Z, Yang J, Yang T, Yang X, Yang Y, Yang Z, Ye P, Yu B, Yuan F, Zhang S, Zhang Y, Zhang R, Zhang Y, Zhang Y, Zhao S, Zhou X. Guidelines for the prevention, diagnosis, and treatment of infective endocarditis in adults: The Task Force for the Prevention, Diagnosis, and Treatment of Infective Endocarditis in Adults of Chinese Society of Cardiology of Chinese Medical Association, and of the Editorial Board of Chinese Journal of Cardiology. Eur Heart J Suppl 2015. [DOI: 10.1093/eurheartj/suv031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Huang L, Fan B, Ma A, Shaul PW, Zhu H. Inhibition of ABCA1 protein degradation promotes HDL cholesterol efflux capacity and RCT and reduces atherosclerosis in mice. J Lipid Res 2015; 56:986-97. [PMID: 25761370 PMCID: PMC4409288 DOI: 10.1194/jlr.m054742] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 03/05/2015] [Indexed: 01/20/2023] Open
Abstract
ABCA1 plays a key role in the initial lipidation of apoA-I, which generates circulating HDL cholesterol. Whereas it is known that the transcriptional upregulation of ABCA1 promotes HDL formation and reverse cholesterol transport (RCT), it is not known how the inhibition of ABCA1 protein degradation impacts HDL function. Employing the small molecule triacetyl-3-hydroxyphenyladenosine (IMM-H007), we determined how the attenuation of ABCA1 protein degradation affects HDL cholesterol efflux capacity, RCT, and atherosclerotic lesion formation. Pulse-chase analysis revealed that IMM-H007 inhibits ABCA1 degradation and facilitates its cell-surface localization in macrophages, and additional studies in macrophages showed that IMM-H007 thereby promotes cholesterol efflux. IMM-H007 treatment of Paigen diet-fed mice caused an increase in circulating HDL level, it increased the cholesterol efflux capacity of HDL, and it enhanced in vivo RCT from macrophages to the plasma, liver, and feces. Furthermore, ABCA1 degradation suppression by IMM-H007 reduced atherosclerotic plaque formation in apoE(-/-) mice. Thus, via effects on both ABCA1-expressing cells and circulating HDL function, the inhibition of ABCA1 protein degradation by IMM-H007 promotes HDL cholesterol efflux capacity and RCT and attenuates atherogenesis. IMM-H007 potentially represents a lead compound for the development of agents to augment HDL function.
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Affiliation(s)
- LinZhang Huang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - BaoYan Fan
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ang Ma
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Philip W. Shaul
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX
| | - HaiBo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Hao J, Jiao X, Han L, Suo Q, Ma A, Liu J, Lian X, Zhang L. CuNi/Co composites prepared by electroless deposition: structure and catalytic activity for the oxidation of cyclohexene with oxygen. RSC Adv 2015. [DOI: 10.1039/c4ra13064b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CuNi/Co composites prepared by electroless deposition behave as novel catalysts for the solvent-free oxidation of cyclohexene with oxygen. Both Cu content and microstructure can significantly affect the catalytic activity.
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Affiliation(s)
- Jianmin Hao
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Xiaoli Jiao
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Limin Han
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Quanling Suo
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Ang Ma
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Jiansheng Liu
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Xu Lian
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
| | - Linlin Zhang
- Chemical Engineering College
- Inner Mongolia University of Technology
- Hohhot
- P. R. China
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Ma A, Wang Y, Zhang Q. Tormentic acid reduces inflammation in BV-2 microglia by activating the liver X receptor alpha. Neuroscience 2014; 287:9-14. [PMID: 25497374 DOI: 10.1016/j.neuroscience.2014.12.005] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 12/03/2014] [Accepted: 12/03/2014] [Indexed: 01/18/2023]
Abstract
Tormentic acid (TA) has been reported to have anticancer, anti-inflammatory and anti-atherogenic properties. However, the effects of TA on neuroinflammation have not been reported. In this study, we investigated whether TA inhibited lipopolysaccharide (LPS)-induced inflammatory response in BV2 microglia cells. BV2 microglia cells were treated with TA for 1h before exposure to LPS. The expression of inducible nitric oxide synthase (iNOS), Cyclooxygenase-2 (COX-2), Nuclear factor κB (NF-κB) and liver X receptor alpha (LXRα) was detected by western blotting. The expression of cytokines Tumor necrosis factor-alpha (TNF-α) and interleukin 1beta (IL-1β) was detected by enzyme-linked immunosorbent assays (ELISA). Results showed that TA inhibited nitric oxide (NO), prostaglandin E2 (PGE2) production by inhibiting iNOS and COX-2 expression. TA also inhibited LPS-induced inflammatory cytokines TNF-α and IL-1β expression. Furthermore, TA could activate LXRα and inhibit LPS-induced NF-κB activation. Knowdown of LXRα reversed the anti-inflammatory effects of TA. In conclusion, our results indicate that TA exerts an anti-inflammatory effect on LPS-stimulated BV2 microglia cells by activating LXRα.
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Affiliation(s)
- A Ma
- Department of Neurology, He Bei Provincial Chest Hospital, Shi Jiazhuang 050000, China
| | - Y Wang
- Department of Nephrology, He Bei Provincial Chest Hospital, Shi Jiazhuang 050000, China
| | - Q Zhang
- Department of Neurology, He Bei Provincial Chest Hospital, Shi Jiazhuang 050000, China.
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Buckner TW, Nielsen BI, Key NS, Ma A. Factor VIII inhibitory antibody in a patient with combined factor V/factor VIII deficiency. Haemophilia 2014; 21:e77-80. [PMID: 25472918 DOI: 10.1111/hae.12557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2014] [Indexed: 01/23/2023]
Affiliation(s)
- T W Buckner
- Harold R. Roberts Comprehensive Hemophilia and Thrombosis Center, University of North Carolina, Chapel Hill, NC, USA
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48
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Pocoski J, Ma A, Kessler CM, Boklage S, Humphries TJ. Cardiovascular comorbidities are increased in US patients with haemophilia A: a retrospective database analysis. Haemophilia 2013; 20:472-8. [DOI: 10.1111/hae.12339] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 01/14/2023]
Affiliation(s)
- J. Pocoski
- Global Health Economics and Outcomes Research; Bayer HealthCare; Whippany NJ USA
| | - A. Ma
- Department of Medicine, University of North Carolina at Chapel Hill; Chapel Hill NC USA
| | - C. M. Kessler
- Department of Medicine, Georgetown University Medical Center; Washington DC USA
| | - S. Boklage
- Health Economics and Outcomes Research; Otsuka America Pharmaceutical, Inc. Princeton; NJ USA
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Lim MY, Nielsen B, Ma A, Key NS. Clinical features and management of haemophilic pseudotumours: a single US centre experience over a 30-year period. Haemophilia 2013; 20:e58-62. [DOI: 10.1111/hae.12295] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2013] [Indexed: 11/30/2022]
Affiliation(s)
- M. Y. Lim
- Division of Hematology/Oncology; Department of Medicine; University of Chapel Hill; Chapel Hill NC USA
| | - B. Nielsen
- UNC Hemophilia and Thrombosis Center; Chapel Hill NC USA
| | - A. Ma
- Division of Hematology/Oncology; Department of Medicine; University of Chapel Hill; Chapel Hill NC USA
- UNC Hemophilia and Thrombosis Center; Chapel Hill NC USA
| | - N. S. Key
- Division of Hematology/Oncology; Department of Medicine; University of Chapel Hill; Chapel Hill NC USA
- UNC Hemophilia and Thrombosis Center; Chapel Hill NC USA
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Nocturne G, Boudaoud S, Miceli Richard C, Viengchareun S, Lazure T, Nititham J, Taylor KE, Criswell LA, Ma A, Busato F, Melki J, Dubost JJ, Hachulla E, Gottenberg JE, Lombes M, Tost J, Mariette X. OP0023 Germinal and Somatic Genetic Variants of TNFAIP3 Promote Lymphomagenesis Process Complicating Primary Sjögren’s Syndrome. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.228] [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: 11/04/2022]
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