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Zong P, Feng J, Li CX, Jellison ER, Yue Z, Miller B, Yue L. Activation of endothelial TRPM2 exacerbates blood-brain barrier degradation in ischemic stroke. Cardiovasc Res 2024; 120:188-202. [PMID: 37595268 PMCID: PMC10936752 DOI: 10.1093/cvr/cvad126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/23/2023] [Accepted: 05/23/2023] [Indexed: 08/20/2023] Open
Abstract
AIMS Damage of the blood-brain barrier (BBB) is a hallmark of brain injury during the early stages of ischemic stroke. The subsequent endothelial hyperpermeability drives the initial pathological changes and aggravates neuronal death. Transient receptor potential melastatin 2 (TRPM2) is a Ca2+-permeable nonselective cation channel activated by oxidative stress. However, whether TRPM2 is involved in BBB degradation during ischemic stroke remains unknown. We aimed to investigate the role of TRPM2 in BBB degradation during ischemic stroke and the underlying molecular mechanisms. METHODS AND RESULTS Specific deletion of Trpm2 in endothelial cells using Cdh5 Cre produces a potent protective effect against brain injury in mice subjected to middle cerebral artery occlusion (MCAO), which is characterized by reduced infarction size, mitigated plasma extravasation, suppressed immune cell invasion, and inhibited oxidative stress. In vitro experiments using cultured cerebral endothelial cells (CECs) demonstrated that either Trpm2 deletion or inhibition of TRPM2 activation attenuates oxidative stress, Ca2+ overload, and endothelial hyperpermeability induced by oxygen-glucose deprivation (OGD) and CD36 ligand thrombospondin-1 (TSP1). In transfected HEK293T cells, OGD and TSP1 activate TRPM2 in a CD36-dependent manner. Noticeably, in cultured CECs, deleting Trpm2 or inhibiting TRPM2 activation also suppresses the activation of CD36 and cellular dysfunction induced by OGD or TSP1. CONCLUSIONS In conclusion, our data reveal a novel molecular mechanism in which TRPM2 and CD36 promote the activation of each other, which exacerbates endothelial dysfunction during ischemic stroke. Our study suggests that TRPM2 in endothelial cells is a promising target for developing more effective and safer therapies for ischemic stroke.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
- Department of Neuroscience, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Evan R Jellison
- Department of Immunology, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Zhichao Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Barbara Miller
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
- Department of Neuroscience, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
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2
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Zong P, Feng J, Legere N, Li Y, Yue Z, Li CX, Mori Y, Miller B, Hao B, Yue L. TRPM2 enhances ischemic excitotoxicity by associating with PKCγ. Cell Rep 2024; 43:113722. [PMID: 38308841 PMCID: PMC11023021 DOI: 10.1016/j.celrep.2024.113722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/30/2023] [Accepted: 01/13/2024] [Indexed: 02/05/2024] Open
Abstract
N-methyl-D-aspartate receptor (NMDAR)-mediated glutamate excitotoxicity significantly contributes to ischemic neuronal death and post-recanalization infarction expansion. Despite tremendous efforts, targeting NMDARs has proven unsuccessful in clinical trials for mitigating brain injury. Here, we show the discovery of an interaction motif for transient receptor potential melastatin 2 (TRPM2) and protein kinase Cγ (PKCγ) association and demonstrate that TRPM2-PKCγ uncoupling is an effective therapeutic strategy for attenuating NMDAR-mediated excitotoxicity in ischemic stroke. We demonstrate that the TRPM2-PKCγ interaction allows TRPM2-mediated Ca2+ influx to promote PKCγ activation, which subsequently enhances TRPM2-induced potentiation of extrasynaptic NMDAR (esNMDAR) activity. By identifying the PKCγ binding motif on TRPM2 (M2PBM), which directly associates with the C2 domain of PKCγ, an interfering peptide (TAT-M2PBM) is developed to disrupt TRPM2-PKCγ interaction without compromising PKCγ function. M2PBM deletion or TRPM2-PKCγ dissociation abolishes both TRPM2-PKCγ and TRPM2-esNMDAR couplings, resulting in reduced excitotoxic neuronal death and attenuated ischemic brain injury.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA; Institute for the Brain and Cognitive Sciences, University of Connecticut, 337 Mansfield Road, Unit 1272, Storrs, CT 06269, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Nicholas Legere
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Yunfeng Li
- Department of Molecular Biology and Biophysics, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Zhichao Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA; Institute for the Brain and Cognitive Sciences, University of Connecticut, 337 Mansfield Road, Unit 1272, Storrs, CT 06269, USA
| | - Yasuo Mori
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Barbara Miller
- Departments of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033, USA
| | - Bing Hao
- Department of Molecular Biology and Biophysics, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA.
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3
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Lee K, Stackhouse C, Anderson J, Bash R, Yue Z, Nguyen T, Eustace N, Ianov L, Langford C, Wang J, Xing C, Yang E, Hjelmeland A, Miller C, Chen J, Gillespie G, Willey C. Deploying a Systems Biology Approach to Identify Drivers of Radiation Resistance in Glioblastoma Multiforme (GBM) Patient-Derived Xenograft (PDX) Models. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.835] [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: 11/29/2022]
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4
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Abstract
BACKGROUND Regulation of vascular permeability is critical to maintaining tissue metabolic homeostasis. VEGF (vascular endothelial growth factor) is a key stimulus of vascular permeability in acute and chronic diseases including ischemia reperfusion injury, sepsis, and cancer. Identification of novel regulators of vascular permeability would allow for the development of effective targeted therapeutics for patients with unmet medical need. METHODS In vitro and in vivo models of VEGFA-induced vascular permeability, pathological permeability, quantitation of intracellular calcium release and cell entry, and phosphatidylinositol 4,5-bisphosphate levels were evaluated with and without modulation of PLC (phospholipase C) β2. RESULTS Global knock-out of PLCβ2 in mice resulted in blockade of VEGFA-induced vascular permeability in vivo and transendothelial permeability in primary lung endothelial cells. Further work in an immortalized human microvascular cell line modulated with stable knockdown of PLCβ2 recapitulated the observations in the mouse model and primary cell assays. Additionally, loss of PLCβ2 limited both intracellular release and extracellular entry of calcium following VEGF stimulation as well as reduced basal and VEGFA-stimulated levels of phosphatidylinositol 4,5-bisphosphate compared to control cells. Finally, loss of PLCβ2 in both a hyperoxia-induced lung permeability model and a cardiac ischemia:reperfusion model resulted in improved animal outcomes when compared with wild-type controls. CONCLUSIONS The results implicate PLCβ2 as a key positive regulator of VEGF-induced vascular permeability through regulation of both calcium flux and phosphatidylinositol 4,5-bisphosphate levels at the cellular level. Targeting of PLCβ2 in a therapeutic setting may provide a novel approach to regulating vascular permeability in patients.
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Affiliation(s)
- Kathryn N. Phoenix
- Center for Vascular Biology, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT
| | - Zhichao Yue
- Pat and Jim Calhoun Cardiology Center, University of Connecticut Health Center, Farmington, CT
| | - Lixia Yue
- Pat and Jim Calhoun Cardiology Center, University of Connecticut Health Center, Farmington, CT
| | - Chunxia G. Cronin
- Pat and Jim Calhoun Cardiology Center, University of Connecticut Health Center, Farmington, CT
| | - Bruce T. Liang
- Pat and Jim Calhoun Cardiology Center, University of Connecticut Health Center, Farmington, CT
| | - Luke H. Hoeppner
- The Hormel Institute, University of Minnesota, Austin, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Kevin P. Claffey
- Center for Vascular Biology, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT
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5
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Zong P, feng J, Yue Z, Li Y, Wu G, Sun B, He Y, Miller B, Yu AS, Su Z, Xie J, Mori Y, Hao B, Yue L. Abstract P3129: Functional Coupling Of TRPM2 And Extrasynaptic NMDARs Exacerbates Excitotoxicity In Ischemic Stroke. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.p3129] [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: 11/16/2022]
Abstract
Introduction:
Ischemic stroke caused a heavy burden on public health. NMDA receptor (NMDAR) mediated excitotoxicity was thought to be the culprit for neuronal death during ischemic stroke. However, NMDAR antagonists all failed to show protective effects in human patients. The heat-sensitive ion channel TRPM2 is Ca
2+
-permeable and usually activated under oxidative stress conditions. TRPM2 is abundantly expressed in the brain and promotes neuronal death during ischemic stroke, whereas the underlying mechanisms remain elusive.
Hypothesis:
Oxidative stress is a hallmark of brain damage during ischemic stroke. We hypothesized that TRPM2 is important in magnifying NMDAR-mediated excitotoxicity.
Methods:
Neuron specific TRPM2 knockout was achieved by crossing
nestin-cre
mice with
Trpm2
fl/fl
mice. Middle cerebral artery occlusion (MCAO) and oxygen-glucose deprivation (OGD) were performed to mimic ischemic stroke in vivo and in vitro, respectively. Co-immunoprecipitation and direct binding assay were used to examine protein-protein interaction. Subcloning and mutagenesis were used to identify interaction details. Interfering peptide specifically disrupting TRPM2-NMDAR interaction was designed and synthesized. Cortical neurons were isolated and cultured, Fura-2-AM and Rhodamine-123 imaging were used to examine Ca
2+
overload and mitochondrial dysfunction, respectively. Synaptic and extrasynaptic NMDAR mediated responses were separated, and synaptosome was isolated to examine the influence of TRPM2 on NMDAR and expression of TRPM2 in neurons at different sites, respectively.
Results:
Neuron specific TRPM2 knockout alleviates ischemic stroke in mice. TRPM2 physically and functionally interacts with extrasynaptic NMDAR, which enhances excitotoxity. The EE
3
motif in TRPM2 directly associates with the KKR motif in NMDAR. Uncoupling of TRPM2-NMDAR association using a disrupting peptide TAT-EE
3
prevents OGD-induced Ca
2+
overload and mitochondrial dysfunction in neurons, and protects mice against MCAO-induced brain injury.
Conclusion:
Therapeutic interfering peptide TAT-EE
3
attenuates ischemic stroke. Targeting the TRPM2-NMDAR coupling could be a promising strategy for screening more effective therapies for ischemic stroke.
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Affiliation(s)
- Pengyu Zong
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | | | | | - Yunfeng Li
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | | | - Baonan Sun
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | - Yanlin He
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | - Barbara Miller
- The Pennsylvania State Univ College of Medicine, Hershey, PA
| | | | - Zhongping Su
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | - Jia Xie
- UCHC CARDIOLOGY DEPT, Farmington, CT
| | | | - Bing Hao
- Univ of Connecticut Sch of Medicine, Farminton, CT
| | - Lixia Yue
- UNIV OF CONNECTICUT HEALTH CENTER, Farmington, CT
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6
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Zong P, Feng J, Yue Z, Yue L. Trpm2 Deficiency in Macrophages Protects Mice against Atherosclerosis. JVS Vasc Sci 2022. [DOI: 10.1016/j.jvssci.2022.05.040] [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: 11/28/2022] Open
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7
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Zong P, Feng J, Yue Z, Yue L. Abstract 228:
Trpm2
Deficiency In Macrophages Protects Mice Against Atherosclerosis. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.228] [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: 12/05/2022]
Abstract
Introduction:
Atherosclerosis and its major complications, ischemic heart diseases and stroke, are the leading causes of mortality worldwide. The prominent feature of atherosclerosis is the formation of foam cells, the infiltrated macrophages overloaded with lipids. Lipid uptake by macrophages is mainly mediated by CD36.
Hypothesis:
Previously we reported that: (1) global
Trpm2
deletion attenuates atherosclerosis; (2), TRPM2 and CD36 enhance the activation of each other in macrophages, thereby promoting foam cell formation. Thus, we hypothesized that macrophage specific
Trpm2
deletion protects mice against atherosclerosis.
Methods:
Macrophage-specific
Trpm2
deletion in was achieved by crossing
Apoe
-/-
/ Trpm2
fl/fl
mice with
Cd11b-cre
mice. High-fat diet (HFD) was used to induce atherosclerosis, and total serum cholesterol level was measured. Oil Red O (ORO) staining was used to evaluate atherosclerotic lesion size. Immunofluorescence staining of Mac-1, F4/80 and CD80 was used to examine the macrophage content in the plaques, which was further confirmed by flow cytometry analysis of the immune cell populations in digested aortas. Inflammation of the aortas was examined by WB analysis of expression of NLRP3, ASC, Caspase-1, IL-1β, macrophage chemoattractant protein-1 (MCP1) and migration-inhibitory factor (MIF).
Results:
Macrophage-specific
Trpm2
deletion: (1) did not influence the serum total cholesterol level; (2) decreased plaque lesion ratio as shown by en-face aorta ORO staining and reduced plaque size as shown by aortic root ORO staining; (3) reduced macrophage content and immune cell infiltration in the plaques; (4) inhibited NLRP3 inflammasome activation and inflammatory cytokines expression in the atherosclerotic aortas.
Conclusion:
Macrophage specific
Trpm2
deletion attenuates HFD-induced atherosclerosis in
Apoe
-/-
mice.
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Affiliation(s)
| | | | | | - Lixia Yue
- UNIV OF CONNECTICUT HEALTH CENTER, Farmington, CT
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8
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Zong P, Feng J, Yue Z, Li Y, Wu G, Sun B, He Y, Miller B, Yu AS, Su Z, Xie J, Mori Y, Hao B, Yue L. Functional coupling of TRPM2 and extrasynaptic NMDARs exacerbates excitotoxicity in ischemic brain injury. Neuron 2022; 110:1944-1958.e8. [PMID: 35421327 DOI: 10.1016/j.neuron.2022.03.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 02/12/2022] [Accepted: 03/14/2022] [Indexed: 12/18/2022]
Abstract
Excitotoxicity induced by NMDA receptor (NMDAR) activation is a major cause of neuronal death in ischemic stroke. However, past efforts of directly targeting NMDARs have unfortunately failed in clinical trials. Here, we reveal an unexpected mechanism underlying NMDAR-mediated neurotoxicity, which leads to the identification of a novel target and development of an effective therapeutic peptide for ischemic stroke. We show that NMDAR-induced excitotoxicity is enhanced by physical and functional coupling of NMDAR to an ion channel TRPM2 upon ischemic insults. TRPM2-NMDAR association promotes the surface expression of extrasynaptic NMDARs, leading to enhanced NMDAR activity and increased neuronal death. We identified a specific NMDAR-interacting motif on TRPM2 and designed a membrane-permeable peptide to uncouple the TRPM2-NMDAR interaction. This disrupting peptide protects neurons against ischemic injury in vitro and protects mice against ischemic stroke in vivo. These findings provide an unconventional strategy to mitigate excitotoxic neuronal death without directly targeting NMDARs.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Zhichao Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Yunfeng Li
- Department of Molecular Biology and Biophysics, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Gongxiong Wu
- Department of Medicine, Brigham and Women's Hospital, Laboratory for Translational Research, Harvard Medical School, Cambridge, MA 02139, USA
| | - Baonan Sun
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Yanlin He
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Barbara Miller
- Departments of Pediatrics and Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033, USA
| | - Albert S Yu
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Zhongping Su
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Jia Xie
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Yasuo Mori
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan; The World Premier International Research Initiative, Institute for Integrated Cell-Material Sciences, Kyoto University, Kyoto 615-8510, Japan
| | - Bing Hao
- Department of Molecular Biology and Biophysics, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA.
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9
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Feng X, Bao W, Wang X, Rao Q, Shi QL, Yue Z. [Pituicytoma: a clinicopathological analysis of twenty-one cases]. Zhonghua Bing Li Xue Za Zhi 2022; 51:314-318. [PMID: 35359042 DOI: 10.3760/cma.j.cn112151-20210818-00579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological features and treatment strategies of pituicytoma. Methods: Twenty-one cases of pituicytoma were collected at the First Affiliated Hospital of Nanjing Medical University and Jinling Hospital, Nanjing, China from 2009 to 2020. The clinical data of 21 pituicytoma patients was retrospectively analyzed, and the relevant literature was reviewed. Results: Twenty-one patients aged 4 to 68 years, including 8 males and 13 females. All patients underwent surgical treatment. Histologically, the tumor was consisted almost entirely of elongate, bipolar spindle cells arranged in a fascicular or storiform pattern. Mitotic figures were rare. Immunohistochemically, tumor cells were diffusely positive for S-100 protein (21/21), vimentin (15/15) and TTF1 (14/14), while they were weakly or focally positive for GFAP (13/16) and EMA (6/12). CKpan was negative in all cases and Ki-67 proliferation index was low (<5%). Among the 18 patients with follow-up, all survived and 2 relapsed after surgery. Conclusions: Pituicytoma is a rare low-grade glioma of the sellar area. It is easily confused with other sellar tumors. Preoperative diagnosis is difficult. It needs to be confirmed by histopathology and immunohistochemistry. Microsurgery is the main treatment method at present.
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Affiliation(s)
- X Feng
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - W Bao
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - X Wang
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - Q Rao
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - Q L Shi
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - Z Yue
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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10
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Zong P, Feng J, Yue Z, Yu AS, Vacher J, Jellison ER, Miller B, Mori Y, Yue L. TRPM2 deficiency in mice protects against atherosclerosis by inhibiting TRPM2-CD36 inflammatory axis in macrophages. Nat Cardiovasc Res 2022; 1:344-360. [PMID: 35445217 PMCID: PMC9015693 DOI: 10.1038/s44161-022-00027-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Atherosclerosis is the major cause of ischemic heart disease and stroke, the leading causes of mortality worldwide. The central pathological features of atherosclerosis include macrophage infiltration and foam cell formation. However, the detailed mechanisms regulating these two processes remain unclear. Here we show that oxidative stress-activated Ca2+-permeable transient receptor potential melastatin 2 (TRPM2) plays a critical role in atherogenesis. Both global and macrophage-specific Trpm2 deletion protect Apoe−/− mice against atherosclerosis. Trpm2 deficiency reduces oxidized low-density lipoprotein (oxLDL) uptake by macrophages, thereby minimizing macrophage infiltration, foam cell formation and inflammatory responses. Activation of the oxLDL receptor CD36 induces TRPM2 activity, and vice versa. In cultured macrophages, TRPM2 is activated by CD36 ligands oxLDL and thrombospondin-1 (TSP1), and deleting Trpm2 or inhibiting TRPM2 activity suppresses the activation of CD36 signaling cascade induced by oxLDL and TSP1. Our findings establish the TRPM2-CD36 axis as a molecular mechanism underlying atherogenesis, and suggest TRPM2 as a potential therapeutic target for atherosclerosis.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Zhichao Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Albert S Yu
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Jean Vacher
- Institut de Recherches Cliniques de Montréal (IRCM), 110 avenue des Pins Ouest, Montréal, Québec; Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Evan R Jellison
- Department of Immunology, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
| | - Barbara Miller
- Departments of Pediatrics, and Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, Pennsylvania, 17033, USA
| | - Yasuo Mori
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus A4-218, Kyoto 615-8510, Japan
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), Farmington, CT 06030, USA
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11
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Gao K, Han J, Zhou X, Luan D, Xie F, Li Y, Yue Z. A new transoral modality for the treatment of lingual thyroglossal duct cyst with suspension laryngoscopy by plasma coblation. Ann R Coll Surg Engl 2021; 103:438-443. [PMID: 33852371 DOI: 10.1308/rcsann.2020.7073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Lingual thyroglossal duct cysts (LTGDC) are a rare kind of thyroglossal duct cyst. However, Sistrunk surgery is not very suitable for this type of cyst. This study aimed to explore the efficacy of transoral excision of LTGDC by plasma coblation. METHODS The present study reviewed 11 patients, comprising seven males and four females, who had been diagnosed with LTGDC preoperatively by computed tomography (CT) and fibre-optic electronic laryngoscopy. Of those patients, two had recurrence after surgery of epiglottic cysts. All these patients underwent transoral excision by plasma coblation. Then, we collected preoperative data of the patients, observed the effect of surgery, and analysed factors relevant to LTGDC, including the estimated bleeding amount, postoperative hospitalisation, complications and recurrence rates. RESULTS The connection between LTGDC and hyoid was tapered on sagittal images of CT, which was vital evidence for the diagnosis of LTGDC. Surgery was performed successfully for all 11 patients, and all recovered without complication. There was no evidence of recurrence after surgery, during follow up for 3-43 months. CONCLUSIONS Transoral surgery for LTGDC can be performed successfully by plasma coblation, which is an effective and safe surgical treatment. Fibre-optic electronic laryngoscopy and CT are essential to the diagnosis of LTGDC in order to avoid missing detection and misdiagnosis.
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Affiliation(s)
- K Gao
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - J Han
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - X Zhou
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - D Luan
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - F Xie
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Y Li
- Qilu Hospital of Shandong University, Jinan, China
| | - Z Yue
- Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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12
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Feng J, Zong P, Yan J, Yue Z, Li X, Smith C, Ai X, Yue L. Upregulation of transient receptor potential melastatin 4 (TRPM4) in ventricular fibroblasts from heart failure patients. Pflugers Arch 2021; 473:521-531. [PMID: 33594499 PMCID: PMC8857941 DOI: 10.1007/s00424-021-02525-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 11/17/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 12/19/2022]
Abstract
The transient receptor potential melastatin 4 (TRPM4) is a Ca2+-activated nonselective monovalent cation channel belonging to the TRP channel superfamily. TRPM4 is widely expressed in various tissues and most abundantly expressed in the heart. TRPM4 plays a critical role in cardiac conduction. Patients carrying a gain-of-function or loss-of-function mutation of TRPM4 display impaired cardiac conduction. Knockout or over-expression of TRPM4 in mice recapitulates conduction defects in patients. Moreover, recent studies have indicated that TRPM4 plays a role in hypertrophy and heart failure. Whereas the role of TRPM4 mediated by cardiac myocytes has been well investigated, little is known about TRPM4 and its role in cardiac fibroblasts. Here we show that in human left ventricular fibroblasts, TRPM4 exhibits typical Ca2+-activation characteristics, linear current-voltage (I-V) relation, and monovalent permeability. TRPM4 currents recorded in fibroblasts from heart failure patients (HF) are more than 2-fold bigger than those from control individuals (CTL). The enhanced functional TRPM4 in HF is not resulted from changed channel properties, as TRPM4 currents from both HF and CTL fibroblasts demonstrate similar sensitivity to intracellular calcium activation and extracellular 9-phenanthrol (9-phen) blockade. Consistent with enhanced TRPM4 activity, the protein level of TRPM4 is about 2-fold higher in HF than that of CTL hearts. Moreover, TRPM4 current in CTL fibroblasts is increased after 24 hours of TGFβ1 treatment, implying that TRPM4 in vivo may be upregulated by fibrogenesis promotor TGFβ1. The upregulated TRPM4 in HF fibroblasts suggests that TRPM4 may play a role in cardiac fibrogenesis under various pathological conditions.
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Affiliation(s)
- Jianlin Feng
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA
| | - Pengyu Zong
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA
| | - Jiajie Yan
- Department of Physiology and Biophysics, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Zhichao Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA
| | - Xin Li
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA
| | - Chevaughn Smith
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA
| | - Xun Ai
- Department of Physiology and Biophysics, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Lixia Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut School of Medicine (UConn Health), Farmington, CT, 06030, USA.
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13
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Willey C, Stackhouse C, Rowland J, Langford C, Anderson J, Ianov L, Yue Z, Nguyen T, Hjelmeland A, Chen J, Gillespie G. Multi-omic Exploration of Inherent and Acquired Radiation Resistance of Glioblastoma Patient-derived Xenografts. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Yue Z, Wang Y, Sun J. 117 Dysregulated m6A methyltransferase METTL3 suppresses acral melanoma proliferation and migration through p38/ERK pathways. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.120] [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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15
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Haslam I, Zhou G, Xie G, Teng X, Ao X, Yan Z, Smart E, Rutkowski D, Wierzbicka J, Zhou Y, Huang Z, Zhang Y, Farjo N, Farjo B, Paus R, Yue Z. LB968 Inhibition of sonic hedgehog signalling via MAPK activation controls chemotherapy-induced alopecia. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.05.066] [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: 10/24/2022]
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16
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Chao R, Li D, Yue Z, Huang C, Kou Y, Zhou Q, Gao Y, Hasegawa T, Guo J, Li M. Interleukin-4 Restores Insulin Sensitivity in Insulin-Resistant Osteoblasts by Increasing the Expression of Insulin Receptor Substrate 1. Biochemistry (Mosc) 2020; 85:334-343. [PMID: 32564738 DOI: 10.1134/s0006297920030098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Obesity and latent inflammation can give rise to insulin resistance and type 2 diabetes. Here we established an insulin resistance model of osteoblasts to explore the restoration effect of anti-inflammatory interleukin-4 (IL-4) on insulin sensitivity and its mechanism. We found that IL-4 inhibited cell proliferation in a concentration- and time-dependent manner. Insulation resistance significantly reduced the phosphorylation levels of the insulin receptor substrate 1 (IRS1; Tyr612), Akt (Ser473), and AS160 (Ser318) proteins. The addition of IL-4 to the insulin resistance model led to a dose-dependent stimulation of the phosphorylation of IRS1, Akt, and AS160. IL-4 fully restored the activation of the insulin cascade in insulin-resistant cells at the concentration of 50 ng/ml. Additionally, IL-4 promoted the expression of IRS1 in a time-dependent manner. We conjecture that IL-4 restores insulin sensitivity in osteoblasts by upregulating the expression of IRS1. It was also found that IL-4 promoted the expression of osteoprotegerin depending on the time of exposure. This effect may play an important role in the regulation of the energy metabolism in the whole body.
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Affiliation(s)
- R Chao
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China.
| | - D Li
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - Z Yue
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - C Huang
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - Y Kou
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - Q Zhou
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - Y Gao
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - T Hasegawa
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, 060-8586, Japan
| | - J Guo
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
| | - M Li
- Department of Bone Metabolism, School and Hospital of Stomatology, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China.
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17
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Sun D, Ma J, Wang J, Han C, Qian Y, Chen G, Li X, Zhang J, Cui P, Du W, Wu Z, Chen S, Zheng X, Yue Z, Song J, Gao C, Zhao X, Cai S, Hu Y. Anti-PD-1 therapy combined with chemotherapy in patients with advanced biliary tract cancer. Cancer Immunol Immunother 2019; 68:1527-1535. [PMID: 31535160 PMCID: PMC6768892 DOI: 10.1007/s00262-019-02386-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Evidence for the efficacy of immunotherapy in biliary tract cancer (BTC) is limited and unsatisfactory. METHODS Chinese BTC patients receiving a PD-1 inhibitor with chemotherapy, PD-1 inhibitor monotherapy or chemotherapy alone were retrospectively analyzed. The primary outcome was overall survival (OS). The key secondary outcomes were progression-free survival (PFS) and safety. Patients previously treated with any agent targeting T cell costimulation or immune checkpoints were excluded. RESULTS The study included 77 patients (a PD-1 inhibitor plus chemotherapy, n = 38; PD-1 inhibitor monotherapy, n = 20; chemotherapy alone, n = 19). The median OS was 14.9 months with a PD-1 inhibitor plus chemotherapy, significantly longer than the 4.1 months with PD-1 inhibitor monotherapy (HR 0.37, 95% CI 0.17-0.80, P = 0.001) and the 6.0 months with chemotherapy alone (HR 0.63, 95% CI 0.42-0.94, P = 0.011). The median PFS was 5.1 months with a PD-1 inhibitor plus chemotherapy, significantly longer than the 2.2 months with PD-1 inhibitor monotherapy (HR 0.59, 95% CI 0.31-1.10, P = 0.014) and the 2.4 months with chemotherapy alone (HR 0.61, 95% CI 0.45-0.83, P = 0.003). Grade 3 or 4 treatment-related adverse events were similar between the anti-PD-1 combination group and the chemotherapy alone group (34.2% and 36.8%, respectively). CONCLUSIONS Anti-PD-1 therapy plus chemotherapy is an effective and tolerable approach for advanced BTC.
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Affiliation(s)
- Danyang Sun
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Junxun Ma
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Jinliang Wang
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Chun Han
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Yuanyu Qian
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Guangying Chen
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Xiaoyan Li
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Juan Zhang
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Pengfei Cui
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Wushuang Du
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Zhaozhen Wu
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Shixue Chen
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Xuan Zheng
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Zhichao Yue
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China
| | - Jia Song
- The Medical Department, 3D Medicines Inc., 158 Xinjunhuan Road, Minhang, Shanghai, 201114, People's Republic of China
| | - Chan Gao
- The Medical Department, 3D Medicines Inc., 158 Xinjunhuan Road, Minhang, Shanghai, 201114, People's Republic of China
| | - Xiaochen Zhao
- The Medical Department, 3D Medicines Inc., 158 Xinjunhuan Road, Minhang, Shanghai, 201114, People's Republic of China
| | - Shangli Cai
- The Medical Department, 3D Medicines Inc., 158 Xinjunhuan Road, Minhang, Shanghai, 201114, People's Republic of China.
| | - Yi Hu
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian, Beijing, 100853, People's Republic of China.
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18
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Liu H, Wang C, Yue Z, Zhang F. LB1087 The IL23R G149R promotes IL-23 unresponsiveness in human memory Th17 cells in leprosy. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Sun D, Ma J, Wang J, Han C, Qian Y, Chen G, Li X, Zhang J, Cui P, Du W, Wu Z, Chen S, Zheng X, Yue Z, Song J, Cai S, HU YI. Anti-PD-1 therapy combined with chemotherapy in patients with advanced pancreas cancer in a real-world clinical setting. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e14103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14103 Background: Pancreatic cancer (PC) is a highly lethal disease and characterized by a strong resistance to current radiotherapy and chemotherapy. As PC has the presence of a microenvironment filled with immunosuppressive mediators and a dense stroma which involved in immune system control, the immune system has been hypothesized to play an important role in PC. However, there was no response in patients who received immune checkpoint inhibitors (ICIs) monotherapy. Though small sample studies revealed that ICIs combined with chemotherapy is effective, a head-to-head comparison of ICIs plus chemotherapy and chemotherapy is limited. Methods: Advanced PC patients treated with chemotherapy alone or plus ICIs were retrospectively screened for eligibility. Patients previously treated with any agent targeting T-cell co-stimulation or checkpoint pathways was excluded. The primary outcome was overall survival (OS). Secondary outcomes were progression-free survival (PFS), overall response rate (ORR) and safety. Results: In total, 58 patients were included (combination, n = 22; chemotherapy, n = 36). Combination group presented significantly longer OS than chemotherapy group (median, 18.1 vs 6.1 months, HR 0.46 [0.23-0.90], P = 0.021). Median PFS was 3.2 months in the combination group and 2.0 months in the chemotherapy group (HR 0.57 [0.32-0.99], P = 0.041). The ORR was similar between the combination group and the chemotherapy group with no significant difference (18.2% vs 19.4%, P = 0.906). And all the patients, who reached partial response, accepted a two-chemotherapic-drugs regimen regardless of combinating with ICIs. Adverse events of grade 3 or higher occurred in 31.8% of the patients in the combination group and in 16.9% of those in the chemotherapy group. Though the incidence rate of serious treatment-related adverse events (TRAEs) was higher in the combination group than the chemotherapy group, no statistical significance existed (P = 0.183). Conclusions: Combination of ICIs plus chemotherapy is effective and tolerable for advanced PC. Accepting ICIs combined with a two-drug chemotherapy regimen might be the better choice.
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Affiliation(s)
| | - Junxun Ma
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Jinliang Wang
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Chun Han
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Yuanyu Qian
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Guangying Chen
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Xiaoyan Li
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Juan Zhang
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Pengfei Cui
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Wushuang Du
- Chinese PLA General Hospital, Beijing, China
| | - Zhaozhen Wu
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | | | - Xuan Zheng
- Chinese PLA General Hospital, Bei Jing, China
| | - Zhichao Yue
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Jia Song
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Shangli Cai
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - YI HU
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
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20
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Sun D, Ma J, Wang J, Han C, Qian Y, Chen G, Li X, Zhang J, Cui P, Du W, Wu Z, Chen S, Zheng X, Yue Z, Song J, Zhao X, Cai S, HU YI. A retrospective cohort study of anti-PD-1 therapy combined with chemotherapy in patients with advanced biliary tract cancer. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e14100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14100 Background: Biliary tract cancer (BTC) is highly aggressive with poor prognosis and few treatment options following progression on gemcitabine-based chemotherapy. Disappointing results from clinical trials for refractory BTC highlight the need for more effective therapies. Immune checkpoint inhibitor (ICI) has been hailed as a major breakthrough for cancer treatment. However, evidence for the efficacy of immunotherapy in biliary tract cancer (BTC) is limited and unsatisfactory. KEYNOTE-158 trial has merely shown a 5.8% of overall response rate with pembrolizumab monotherapy in advanced BTCs. Thus, combining other therapies with ICIs is becoming the researching focus. Herein, we constructed a cohort to evaluate the efficacy and safety of ICIs combined with chemotherapy in advanced BTCs. Methods: Chinese BTC patients receiving PD-1 inhibitors with chemotherapy, PD-1 inhibitors monotherapy or chemotherapy alone were retrospectively analyzed. The primary outcome was overall survival (OS). The key secondary outcome were progression-free survival (PFS) and safety. Patients previously treated with any agent targeting T-cell co-stimulation or immune checkpoints were excluded. Results: The study included 77 patients (PD-1 inhibitors plus chemotherapy, n = 38; PD-1 inhibitors monotherapy, n = 20; chemotherapy, n = 19). Median OS was 14.9 months with PD-1 inhibitors plus chemotherapy, 4.1 months with PD-1 inhibitors and 6.0 months with chemotherapy, with significantly longer for anti-PD-1 combination therapy than monotherapy (HR 0.37, 95% CI 0.17-0.80, P= 0.001) or chemotherapy (HR 0.63, 95% CI 0.42-0.94, P= 0.011). Median PFS was 5.1 months with PD-1 inhibitors plus chemotherapy, 2.2 months with PD-1 inhibitors and 2.4 months with chemotherapy, with significant difference for anti-PD-1 combination therapy versus anti-PD-1 monotherapy (HR 0.59, 95% CI 0.31-1.10, P= 0.014) or chemotherapy (HR 0.61, 95% CI 0.45-0.83, P= 0.003). Grade 3 or 4 treatment-related adverse events were similar between anti-PD-1 combination group and chemotherapy group (34.2% and 36.8%). Conclusions: PD-1 inhibitors plus chemotherapy is effective and tolerable for advanced BTC.
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Affiliation(s)
| | - Junxun Ma
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Jinliang Wang
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Chun Han
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Yuanyu Qian
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Guangying Chen
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Xiaoyan Li
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Juan Zhang
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Pengfei Cui
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Wushuang Du
- Chinese PLA General Hospital, Beijing, China
| | - Zhaozhen Wu
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | | | - Xuan Zheng
- Chinese PLA General Hospital, Bei Jing, China
| | - Zhichao Yue
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Jia Song
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Xiaochen Zhao
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Shangli Cai
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - YI HU
- First Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
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21
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Goebel R, Haddad M, Kleinöder H, Yue Z, Heinen T, Mester J. Does combined strength training and local vibration improve isometric maximum force? A pilot study. Muscles Ligaments Tendons J 2019. [DOI: 10.32098/mltj.01.2018.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R. Goebel
- Sport Science Program. College of Arts and Sciences, Qatar University, Doha, Qatar
| | - M. Haddad
- Sport Science Program. College of Arts and Sciences, Qatar University, Doha, Qatar
| | - H. Kleinöder
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
| | - Z. Yue
- The German Research Center, Center of Elite Sport, German Sport University Cologne, Cologne, Germany
| | - T. Heinen
- Faculty of Sport Science, Leipzig University, Leipzig, Germany
| | - J. Mester
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
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22
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Wang Z, Mi Z, Wang H, Sun L, Yu G, Fu X, Wang C, Bao F, Yue Z, Zhao Q, Wang N, Cheng X, Liu H, Zhang F. Discovery of 4 exonic and 1 intergenic novel susceptibility loci for leprosy. Clin Genet 2018; 94:259-263. [PMID: 29722023 DOI: 10.1111/cge.13376] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/13/2022]
Abstract
Seven new risk coding variants have been identified through an exome-wide association study (EWAS), which studied the contributions of protein-coding variants to leprosy susceptibility. But some potential susceptibility loci were not studied in the previous EWAS study because of the project consideration. Seventeen unstudied potential susceptibility loci of the previous EWAS were validated in 3169 cases and 9814 controls in this study. Four disease-associated exonic loci were identified: rs671 in ALDH2 (P = 2.0 × 10-20 , odds ratio [OR] = 1.35), rs13259978 in SLC7A2 (P = 1.74 × 10-8 , OR = 1.28), rs925368 in GIT2 (P = 9.18 × 10-17 , OR = 1.44), and rs75680863 in TCN2 (P = 8.37 × 10-21 , OR = 0.74). Potentially implicating ZFP36L1 as a new susceptibility gene, 1 intergenic single nucleotide polymorphism (SNP), rs1465788 (P = 7.81 × 10-6 , OR = 0.88), was also suggested to be associated with leprosy. A luciferase reporter assay showed that the rs1465788 risk allele notably decreased the transcription activity of the flanking sequence. These findings suggest the possible involvement of lipid metabolism, NF-κB homeostasis and macrophage antimicrobial pathways in leprosy pathogenesis.
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Affiliation(s)
- Z Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - Z Mi
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - H Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - L Sun
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - G Yu
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - X Fu
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - C Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - F Bao
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China
| | - Z Yue
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - Q Zhao
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - N Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - X Cheng
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China
| | - H Liu
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,Shandong Provincial Medical Center for Dermatovenereology, Jinan, China
| | - F Zhang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory for Dermatovenereology, Jinan, China.,School of Medicine, Shandong University, Jinan, China.,Shandong Provincial Medical Center for Dermatovenereology, Jinan, China.,School of Medicine and Life Science, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China.,National Clinical Key Project of Dermatology and Venereology, Jinan, China
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23
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You J, Yue Z, Chen S, Chen Y, Lu X, Zhang X, Shen P, Li J, Han Q, Li Z, Liu P. Receptor-interacting Protein 140 represses Sirtuin 3 to facilitate hypertrophy, mitochondrial dysfunction and energy metabolic dysfunction in cardiomyocytes. Acta Physiol (Oxf) 2017; 220:58-71. [PMID: 27614093 DOI: 10.1111/apha.12800] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/19/2016] [Accepted: 09/07/2016] [Indexed: 12/12/2022]
Abstract
AIM The transcriptional cofactor receptor-interacting protein 140 (RIP140) is known as a deleterious regulator of cardiac mitochondrial function and energy metabolic homeostasis. This study revealed that RIP140 repressed Sirtuin 3 (SIRT3), a mitochondrial deacetylase that plays an important role in regulating cardiac function. METHODS RIP140 was overexpressed by adenovirus infection or was knocked down by RNA interference in neonatal rat cardiomyocytes. RESULTS RIP140 overexpression repressed, while RIP140 silencing elevated the expression and activity of SIRT3. Ad-RIP140 enhanced the expressions of the cardiac hypertrophic markers and increased cardiomyocyte surface area, whereas SIRT3 overexpression prevented the effect of Ad-RIP140. Additionally, SIRT3 overexpression reversed Ad-RIP140-induced mitochondrial dysfunction and energy metabolic dysfunction, such as increase in oxidative stress, decrease in mitochondrial membrane potential and ATP production, as well as downregulation of mitochondrial DNA-encoded genes and genes related to mitochondrial genome replication and transcription, mitochondrial oxidative phosphorylation and fatty acid oxidation. In contrast, SIRT3 silencing exacerbated RIP140-induced cardiomyocyte hypertrophy and mitochondrial dysfunction. Furthermore, the repression of SIRT3 by RIP140 was dependent on estrogen-related receptor-α (ERRα). The involvement of peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) was ruled out of SIRT3 suppression by RIP140. RIP140 and PGC-1α might act as functional antagonists on the regulation of SIRT3. CONCLUSION This study indicates that suppression of SIRT3 by RIP140 facilitates the development of cardiomyocyte hypertrophy, mitochondrial dysfunction and energy metabolic dysfunction. Strategies targeting inhibition of RIP140 and upregulation of SIRT3 might improve cardiac energy metabolism and suggest therapeutic potential for heart diseases.
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Affiliation(s)
- J. You
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Z. Yue
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - S. Chen
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Y. Chen
- Department of Pharmacy; The Second Affiliated Hospital of Guangzhou Medical University; Guangzhou Guangdong China
| | - X. Lu
- School of Nursing; Guangdong Pharmaceutical University; Guangzhou Guangdong China
| | - X. Zhang
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
- School of Medicine; Xizang Minzu University; Xianyang ShaanXi China
| | - P. Shen
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - J. Li
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Q. Han
- Department of Hepatobiliary Surgery; Sun Yat-sen Memorial Hospital; Guangzhou China
| | - Z. Li
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - P. Liu
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
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24
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Yue Z. 837 From genotoxic stresses to skin damage: Distinct, novel mechanisms of skin and hair damage in chemo/radiation therapy. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.863] [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: 10/19/2022]
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25
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Park JW, Yan L, Stoddard C, Wang X, Yue Z, Crandall L, Robinson T, Chang Y, Denton K, Li E, Jiang B, Zhang Z, Martins-Taylor K, Yee SP, Nie H, Gu F, Si W, Xie T, Yue L, Xu RH. Recapitulating and Correcting Marfan Syndrome in a Cellular Model. Int J Biol Sci 2017; 13:588-603. [PMID: 28539832 PMCID: PMC5441176 DOI: 10.7150/ijbs.19517] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 02/24/2017] [Indexed: 12/16/2022] Open
Abstract
Marfan syndrome (MFS) is a connective tissue disorder caused by mutations in FBN1 gene, which encodes a key extracellular matrix protein FIBRILLIN-1. The haplosufficiency of FBN1 has been implicated in pathogenesis of MFS with manifestations primarily in cardiovascular, muscular, and ocular tissues. Due to limitations in animal models to study the late-onset diseases, human pluripotent stem cells (PSCs) offer a homogeneic tool for dissection of cellular and molecular pathogenic mechanism for MFS in vitro. Here, we first derived induced PSCs (iPSCs) from a MFS patient with a FBN1 mutation and corrected the mutation, thereby generating an isogenic "gain-of-function" control cells for the parental MFS iPSCs. Reversely, we knocked out FBN1 in both alleles in a wild-type (WT) human embryonic stem cell (ESC) line, which served as a loss-of-function model for MFS with the WT cells as an isogenic control. Mesenchymal stem cells derived from both FBN1-mutant iPSCs and -ESCs demonstrated reduced osteogenic differentiation and microfibril formation. We further demonstrated that vascular smooth muscle cells derived from FBN1-mutant iPSCs showed less sensitivity to carbachol as demonstrated by contractility and Ca2+ influx assay, compared to the isogenic controls cells. These findings were further supported by transcriptomic anaylsis of the cells. Therefore, this study based on both gain- and loss-of-function approaches confirmed the pathogenetic role of FBN1 mutations in these MFS-related phenotypic changes.
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Affiliation(s)
- Jung Woo Park
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Li Yan
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Chris Stoddard
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Xiaofang Wang
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Zhichao Yue
- Agricultural Genomes Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Leann Crandall
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Tiwanna Robinson
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Yuxiao Chang
- Agricultural Genomes Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Kyle Denton
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Enqin Li
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Bin Jiang
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Zhenwu Zhang
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Kristen Martins-Taylor
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Siu-Pok Yee
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Hong Nie
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong, China
| | - Feng Gu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, State Key Laboratory Cultivation Base and Key Laboratory of Vision Science, Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology and Optometry, Wenzhou, Zhejiang, China
| | - Wei Si
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ting Xie
- Stowers Institute for Medical Research, Kansas City, Missouri, USA
| | - Lixia Yue
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Ren-He Xu
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, Connecticut, USA
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26
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Zhang B, Molino PJ, Harris AR, Yue Z, Moulton SE, Wallace GG. Conductive and protein resistant polypyrrole films for dexamethasone delivery. J Mater Chem B 2016; 4:2570-2577. [PMID: 32263280 DOI: 10.1039/c5tb00574d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The development of inherently conducting polymers as controllable/programmable drug delivery systems has attracted significant interest in medical bionics, and the interfacial properties of the polymers, in particular, protein adsorption characteristics, is integral to the stability of the overall performance. Herein we report a hybrid conducting system based on polypyrrole doped with an anti-inflammatory prodrug, dexamethasone phosphate (DexP), upon which post-surface modification was conducted to render the polymer more biostable. We firstly investigated the influence of the current density and DexP concentration on the physiochemical properties and surface characteristics of the resulting polymer films. Films were then surface modified with thiolated poly(ethylene glycol). The influence of surface modification on inhibition of nonspecific protein adsorption to the polymer surfaces was evaluated using electrochemistry and quartz crystal microbalance. Furthermore, studies were undertaken to examine the effect of surface coatings on the drug release behaviour triggered by electrical stimulation. Our results demonstrated that both the physiochemical and interfacial properties of conducting polymers can be modulated to enhance the performance of the materials as biocompatible drug delivery systems. This provides important insight into molecular engineering of conducting polymers to facilitate their applications in medical bionics.
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Affiliation(s)
- B Zhang
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Faculty, Innovation Campus, University of Wollongong, NSW 2500, Australia.
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27
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Tsujikawa H, Yu AS, Xie J, Yue Z, Yang W, He Y, Yue L. Identification of key amino acid residues responsible for internal and external pH sensitivity of Orai1/STIM1 channels. Sci Rep 2015; 5:16747. [PMID: 26576490 PMCID: PMC4649748 DOI: 10.1038/srep16747] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 10/20/2015] [Indexed: 12/27/2022] Open
Abstract
Changes of intracellular and extracellular pH are involved in a variety of physiological and pathological processes, in which regulation of the Ca2+ release activated Ca2+ channel (ICRAC) by pH has been implicated. Ca2+ entry mediated by ICRAC has been shown to be regulated by acidic or alkaline pH. Whereas several amino acid residues have been shown to contribute to extracellular pH (pHo) sensitivity, the molecular mechanism for intracellular pH (pHi) sensitivity of Orai1/STIM1 is not fully understood. By investigating a series of mutations, we find that the previously identified residue E106 is responsible for pHo sensitivity when Ca2+ is the charge carrier. Unexpectedly, we identify that the residue E190 is responsible for pHo sensitivity when Na+ is the charge carrier. Furthermore, the intracellular mutant H155F markedly diminishes the response to acidic and alkaline pHi, suggesting that H155 is responsible for pHi sensitivity of Orai1/STIM1. Our results indicate that, whereas H155 is the intracellular pH sensor of Orai1/STIM1, the molecular mechanism of external pH sensitivity varies depending on the permeant cations. As changes of pH are involved in various physiological/pathological functions, Orai/STIM channels may be an important mediator for various physiological and pathological processes associated with acidosis and alkalinization.
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Affiliation(s)
- Hiroto Tsujikawa
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Albert S Yu
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Jia Xie
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Zhichao Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Wenzhong Yang
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Yanlin He
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Lixia Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
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28
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Li X, Wu G, Shang P, Bao J, Lu J, Yue Z. Anti-nephrolithic potential of catechin in melamine-related urolithiasis via the inhibition of ROS, apoptosis, phospho-p38, and osteopontin in male Sprague-Dawley rats. Free Radic Res 2015; 49:1249-58. [DOI: 10.3109/10715762.2015.1061187] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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29
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Yue Z, Tsujikawa H, Xie J, Yang W, Yue L. Molecular basis of pH sensitivity of Orai1/stim1 channels. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1021.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhichao Yue
- Cell Biology/CardiologyUniversity of Connecticut School of Medicine (UCHC)FarmingtonCTUnited States
| | - Hiroto Tsujikawa
- Faculty of Health Sciences and NursingJuntendo UniversityOmiyachoMishima, ShizuokaJapan
| | - Jia Xie
- Cell Biology/CardiologyUniversity of Connecticut School of Medicine (UCHC)FarmingtonCTUnited States
| | - Wenzhong Yang
- Cell Biology/CardiologyUniversity of Connecticut School of Medicine (UCHC)FarmingtonCTUnited States
| | - Lixia Yue
- Cell Biology/CardiologyUniversity of Connecticut School of Medicine (UCHC)FarmingtonCTUnited States
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30
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Abstract
The transient receptor potential (TRP) superfamily consists of a large number of nonselective cation channels with variable degree of Ca(2+)-permeability. The 28 mammalian TRP channel proteins can be grouped into six subfamilies: canonical, vanilloid, melastatin, ankyrin, polycystic, and mucolipin TRPs. The majority of these TRP channels are expressed in different cell types including both excitable and nonexcitable cells of the cardiovascular system. Unlike voltage-gated ion channels, TRP channels do not have a typical voltage sensor, but instead can sense a variety of other stimuli including pressure, shear stress, mechanical stretch, oxidative stress, lipid environment alterations, hypertrophic signals, and inflammation products. By integrating multiple stimuli and transducing their activity to downstream cellular signal pathways via Ca(2+) entry and/or membrane depolarization, TRP channels play an essential role in regulating fundamental cell functions such as contraction, relaxation, proliferation, differentiation, and cell death. With the use of targeted deletion and transgenic mouse models, recent studies have revealed that TRP channels are involved in numerous cellular functions and play an important role in the pathophysiology of many diseases in the cardiovascular system. Moreover, several TRP channels are involved in inherited diseases of the cardiovascular system. This review presents an overview of current knowledge concerning the physiological functions of TRP channels in the cardiovascular system and their contributions to cardiovascular diseases. Ultimately, TRP channels may become potential therapeutic targets for cardiovascular diseases.
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Affiliation(s)
- Zhichao Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
| | - Jia Xie
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
| | - Albert S Yu
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
| | - Jonathan Stock
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
| | - Jianyang Du
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
| | - Lixia Yue
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut
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Cagavi E, Bartulos O, Suh CY, Sun B, Yue Z, Jiang Z, Yue L, Qyang Y. Functional cardiomyocytes derived from Isl1 cardiac progenitors via Bmp4 stimulation. PLoS One 2014; 9:e110752. [PMID: 25522363 PMCID: PMC4270687 DOI: 10.1371/journal.pone.0110752] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 09/24/2014] [Indexed: 12/02/2022] Open
Abstract
As heart failure due to myocardial infarction remains a leading cause of morbidity worldwide, cell-based cardiac regenerative therapy using cardiac progenitor cells (CPCs) could provide a potential treatment for the repair of injured myocardium. As adult CPCs may have limitations regarding tissue accessibility and proliferative ability, CPCs derived from embryonic stem cells (ESCs) could serve as an unlimited source of cells with high proliferative ability. As one of the CPCs that can be derived from embryonic stem cells, Isl1 expressing cardiac progenitor cells (Isl1-CPCs) may serve as a valuable source of cells for cardiac repair due to their high cardiac differentiation potential and authentic cardiac origin. In order to generate an unlimited number of Isl1-CPCs, we used a previously established an ESC line that allows for isolation of Isl1-CPCs by green fluorescent protein (GFP) expression that is directed by the mef2c gene, specifically expressed in the Isl1 domain of the anterior heart field. To improve the efficiency of cardiac differentiation of Isl1-CPCs, we studied the role of Bmp4 in cardiogenesis of Isl1-CPCs. We show an inductive role of Bmp directly on cardiac progenitors and its enhancement on early cardiac differentiation of CPCs. Upon induction of Bmp4 to Isl1-CPCs during differentiation, the cTnT+ cardiomyocyte population was enhanced 2.8±0.4 fold for Bmp4 treated CPC cultures compared to that detected for vehicle treated cultures. Both Bmp4 treated and untreated cardiomyocytes exhibit proper electrophysiological and calcium signaling properties. In addition, we observed a significant increase in Tbx5 and Tbx20 expression in differentiation cultures treated with Bmp4 compared to the untreated control, suggesting a link between Bmp4 and Tbx genes which may contribute to the enhanced cardiac differentiation in Bmp4 treated cultures. Collectively these findings suggest a cardiomyogenic role for Bmp4 directly on a pure population of Isl1 expressing cardiac progenitors, which could lead to enhancement of cardiac differentiation and engraftment, holding a significant therapeutic value for cardiac repair in the future.
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Affiliation(s)
- Esra Cagavi
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale Stem Cell Center, Yale School of Medicine, Yale University, New Haven, CT, United States of America
- Department of Medical Biology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Oscar Bartulos
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale Stem Cell Center, Yale School of Medicine, Yale University, New Haven, CT, United States of America
| | - Carol Y. Suh
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale Stem Cell Center, Yale School of Medicine, Yale University, New Haven, CT, United States of America
- Department of Genetics, Yale School of Medicine, Yale University, New Haven, CT, United States of America
| | - Baonan Sun
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America
| | - Zhichao Yue
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America
| | - Zhengxin Jiang
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale Stem Cell Center, Yale School of Medicine, Yale University, New Haven, CT, United States of America
| | - Lixia Yue
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America
| | - Yibing Qyang
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale Stem Cell Center, Yale School of Medicine, Yale University, New Haven, CT, United States of America
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States of America
- * E-mail:
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32
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Yue Z, Rong J, Ping W, Bing Y, Xin Y, Feng LD, Yaping W. Gene expression of the p16(INK4a)-Rb and p19(Arf)-p53-p21(Cip/Waf1) signaling pathways in the regulation of hematopoietic stem cell aging by ginsenoside Rg1. Genet Mol Res 2014; 13:10086-96. [PMID: 25501220 DOI: 10.4238/2014.december.4.3] [Citation(s) in RCA: 15] [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: 11/03/2022]
Abstract
The elucidation of the molecular mechanisms underlying the effects of traditional Chinese medicines in clinical practice is a key step toward their worldwide application, and this topic is currently a subject of intense research interest. Rg1, a component of ginsenoside, has recently been shown to perform several pharmacological functions; however, the underlying mechanisms of these effects remain unclear. In the present study, we investigated whether Rg1 has an anti-senescence effect on hematopoietic stem cells (HSCs) and the possible molecular mechanisms driving any effects. The results showed that Rg1 could effectively delay tert-butyl hydroperoxide (t-BHP)-induced senescence and inhibit gene expression in the p16(INK4a)-Rb and p19(Arf)-p53-p21(Cip/Waf1) signaling pathways in HSCs. Our study suggested that these two signaling pathways might be potential targets for elucidating the molecular mechanisms of the Rg1 anti-senescence effect.
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Affiliation(s)
- Z Yue
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - J Rong
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - W Ping
- Department of Stomatology, The First Affiliated Hospital, Chongqing University of Medical Sciences, Chongqing, China
| | - Y Bing
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Y Xin
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - L D Feng
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - W Yaping
- Laboratory of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
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33
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Yue Z, Feng W, Xiangke L, Liuxing W, Qingxia F, Jianbo G. WAVE3 promotes epithelial-mesenchymal transition of gastric cancer through upregulation of Snail. Cancer Gene Ther 2014; 21:499-506. [PMID: 25378074 DOI: 10.1038/cgt.2014.52] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/14/2014] [Accepted: 09/15/2014] [Indexed: 12/28/2022]
Abstract
WAVE3, an actin cytoskeleton remodeling protein overexpressed in many kinds of cancers, has been associated with a lot of metastatic diseases. However, the role and mechanisms of the high expression of WAVE3 in human gastric cancer has not been fully elucidated. Here we demonstrated that WAVE3 was expressed in all six kinds of gastric-cancer cell lines: BGC-823, SGC-7901, AGS, MGC803, MKN28 and MKN45. Furthermore, a correlation was found between aggressiveness of these cell lines and expression of WAVE3. Next, we investigated the role of WAVE3 in SGC-7901 cells and found that upregulating WAVE3 could promote the migration, invasion and proliferation of SGC-7901 cells in vitro. It has been reported that WAVE3 could induce cancer invasion and metastasis by participating epithelial-mesenchymal transition (EMT). However, the mechanisms are not entirely clear. In this study we showed that elevated WAVE3 levels could induce EMT in SGC-7901 cells by dampening the expression of E-cadherin while increasing the expression of vimentin. Elevated WAVE3 levels could also improve the expression of transcription factor Snail. In addition, downregulating Snail could particularly reduce EMT and the metastasis, invasion and proliferation activity in SGC-7901 cells elevated by overexpression of WAVE3. Taken together, we demonstrated that WAVE3 promoted gastric-cancer-cells migration and invasion by taking part in EMT via upregulation of Snail. WAVE3 could be a useful target for gastric-cancer prevention and therapy.
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Affiliation(s)
- Z Yue
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - W Feng
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - L Xiangke
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - W Liuxing
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - F Qingxia
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - G Jianbo
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
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34
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Jia X, Zhang F, Bai J, Gao L, Zhang X, Sun H, Sun D, Guan R, Sun W, Xu L, Yue Z, Yu Y, Fu S. Combinational analysis of linkage and exome sequencing identifies the causative mutation in a Chinese family with congenital cataract. BMC Med Genet 2013; 14:107. [PMID: 24103489 PMCID: PMC3851584 DOI: 10.1186/1471-2350-14-107] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 09/23/2013] [Indexed: 11/19/2022]
Abstract
Background Congenital cataract is a Mendelian disorder that frequently causes blindness in infants. To date, various cataract-associated loci have been mapped; more than 30 genes have been identified by linkage analysis. However, the pathogenic loci in some affected families are still unknown, and new research strategies are needed. In this study, we used linkage-exome combinational analysis to further investigate the pedigree of a four-generation Chinese family with autosomal dominant coralliform cataract. Methods We combined whole exome sequencing and linkage analysis to identify the causative mutation. The exome capture and next-generation sequencing were used to sequence the protein-coding regions in the genome of the proband to identify rare mutations, which were further screened for candidate mutations in linkage regions. Candidate mutations were independently verified for co-segregation in the whole pedigree using Sanger sequencing. Results We identified a C to A transversion at nucleotide position c.70 in exon 2 of CRYGD, a cataract-associated gene. This mutation resulted in a threonine substitution for proline at amino acid residue 24. Conclusions We identified a missense P24T mutation in CRYGD that was responsible for coralliform cataract in our studied family. Our findings suggest that the combination of exome sequencing and linkage analysis is a powerful tool for identifying Mendelian disease mutations that might be missed by the classic linkage analysis strategy.
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Affiliation(s)
- Xueyuan Jia
- Laboratory of Medical Genetics, Harbin Medical University, Harbin 150081, China.
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Qin X, Yue Z, Sun B, Yang W, Xie J, Ni E, Feng Y, Mahmood R, Zhang Y, Yue L. Sphingosine and FTY720 are potent inhibitors of the transient receptor potential melastatin 7 (TRPM7) channels. Br J Pharmacol 2013; 168:1294-312. [PMID: 23145923 DOI: 10.1111/bph.12012] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Revised: 09/30/2012] [Accepted: 10/02/2012] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Transient receptor potential melastatin 7 (TRPM7) is a unique channel kinase which is crucial for various physiological functions. However, the mechanism by which TRPM7 is gated and modulated is not fully understood. To better understand how modulation of TRPM7 may impact biological processes, we investigated if TRPM7 can be regulated by the phospholipids sphingosine (SPH) and sphingosine-1-phosphate (S1P), two potent bioactive sphingolipids that mediate a variety of physiological functions. Moreover, we also tested the effects of the structural analogues of SPH, N,N-dimethyl-D-erythro-sphingosine (DMS), ceramides and FTY720 on TRPM7. EXPERIMENTAL APPROACH HEK293 cells stably expressing TRPM7 were used for whole-cell, single-channel and macropatch current recordings. Cardiac fibroblasts were used for native TRPM7 current recording. KEY RESULTS SPH potently inhibited TRPM7 in a concentration-dependent manner, whereas S1P and other ceramides did not produce noticeable effects. DMS also markedly inhibited TRPM7. Moreover, FTY720, an immunosuppressant and the first oral drug for treatment of multiple sclerosis, inhibited TRPM7 with a similar potency to that of SPH. In contrast, FTY720-P has no effect on TRPM7. It appears that SPH and FTY720 inhibit TRPM7 by reducing channel open probability. Furthermore, endogenous TRPM7 in cardiac fibroblasts was markedly inhibited by SPH, DMS and FTY720. CONCLUSIONS AND IMPLICATIONS This is the first study demonstrating that SPH and FTY720 are potent inhibitors of TRPM7. Our results not only provide a new modulation mechanism of TRPM7, but also suggest that TRPM7 may serve as a direct target of SPH and FTY720, thereby mediating S1P-independent physiological/pathological functions of SPH and FTY720.
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Affiliation(s)
- Xin Qin
- Calhoun Cardiology Center, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
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Yue Z. The presence of an out-group person reduces the range of near space. J Vis 2013. [DOI: 10.1167/13.9.476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Quan R, Huang Z, Yue Z, Xin D, Yang D, Pan J, Zhang L. Effects of a proteasome inhibitor on the NF-κB signalling pathway in experimental osteoarthritis. Scand J Rheumatol 2013; 42:400-7. [PMID: 23826657 DOI: 10.3109/03009742.2013.776101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To evaluate the effects of the proteasome inhibitor MG-132 on the expression of nuclear factor (NF)-κB p65, inhibitor (I)-κB, tumour necrosis factor (TNF)-α, and interleukin (IL)-1β in the cartilage and synovial tissues of rats with osteoarthritis (OA), and to investigate the role that the ubiquitin/proteasome system (UPS) plays in the OA process. METHOD A total of 144 adult male Sprague Dawley rats were randomly assigned to four groups: anterior cruciate ligament transaction (ACLT) + MG-132 (ACLT/M), ACLT + dimethylsulfoxide (ACLT/D), sham surgery (Sham), and naïve + MG-132 (naïve/M). Pathological morphology was undertaken. mRNA expression levels of NF-κB p65, I-κB, TNF-α, and IL-1β were determined using real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR). The activities of the 20S proteasome chymotrypsin-like and peptidylglutamyl-peptide hydrolase-like enzymes were measured using fluorospectrophotometry. RESULTS The Mankin scores at all time points in ACLT/M rats were significantly lower than those in ACLT/D rats (p < 0.05). Despite the NF-κB p65 in the synovial tissue at 2 weeks after surgery and IL-1β in the cartilage tissue at 12 weeks after surgery, mRNA expression levels of NF-κB p65, IL-1β, and TNF-α at other time points in ACLT/M were significantly lower than those in ACLT/D (p < 0.05). mRNA levels of I-κB in the cartilage tissue in ACLT/M were significantly higher than those in ACLT/D at 2 weeks after surgery (p < 0.05). mRNA levels of I-κB in the synovial tissue in ACLT/M were higher than those in ACLT/D at all time points, and the difference was significant at 4 weeks after surgery (p < 0.05). MG-132 decreased the activities of the 20S proteasome chymotrypsin-like and peptidylglutamyl-peptide hydrolase-like enzymes in the cartilage and synovial tissues of rats. CONCLUSIONS The proteasome inhibitor MG-132 delays the progress of OA by alleviating synovial inflammation and protecting the articular cartilage tissue.
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Affiliation(s)
- R Quan
- Xiaoshan Traditional Chinese Medical Hospital , Zhengjiang Province , China
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Zhu J, Yu Y, Meng X, Fan Y, Zhang Y, Zhou C, Yue Z, Jin Y, Zhang C, Yu L, Ji W, Jia X, Guan R, Wu J, Yu J, Bai J, Guan XY, Wang M, Lee KY, Sun W, Fu S. De novo-generated small palindromes are characteristic of amplicon boundary junction of double minutes. Int J Cancer 2013; 133:797-806. [PMID: 23382041 PMCID: PMC3734650 DOI: 10.1002/ijc.28084] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 08/12/2012] [Accepted: 01/21/2013] [Indexed: 12/20/2022]
Abstract
Double minutes (DMs) are hallmarks of gene amplification. However, their molecular structure and the mechanisms of formation are largely unknown. To elucidate the structure and underlying molecular mechanism of DMs, we obtained and cloned DMs using microdissection; and degenerated oligonucleotide primed polymerase chain reaction (DOP-PCR) from the ovarian cancer cell line UACC-1598. Two large amplicons, the 284 kb AmpMYCN, originating from locus 2p24.3 and the 391 kb AmpEIF5A2, from locus 3q26.2, were found co-amplified on the same DMs. The two amplicons are joined through a complex 7 kb junction DNA sequence. Analysis of the junction has revealed three de novo created small palindromes surrounding the six breakpoints. Consistent with these observations, we further found that 70% of the 57 reported DM junction sequences have de novo creation of small palindromic sequences surrounding the breakpoints. Together, our findings indicate that de novo-generated small palindromic sequences are characteristic of amplicon boundary junctions on DMs. It is possible that the de novo-generated small palindromic sequences, which may be generated through non-homologous end joining in concert with a novel DNA repair machinery, play a common role in amplicon rejoining and gene amplification.
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Affiliation(s)
- Jing Zhu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, People's Republic of China
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Yue Z, Zhang Y, Xie J, Jiang J, Yue L. Transient Receptor Potential (TRP) Channels and Cardiac Fibrosis. Curr Top Med Chem 2013; 13:270-82. [DOI: 10.2174/1568026611313030005] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 01/18/2013] [Indexed: 11/22/2022]
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Ge X, Ren Y, Bartulos O, Lee MY, Yue Z, Kim KY, Li W, Amos PJ, Bozkulak EC, Iyer A, Zheng W, Zhao H, Martin KA, Kotton DN, Tellides G, Park IH, Yue L, Qyang Y. Modeling supravalvular aortic stenosis syndrome with human induced pluripotent stem cells. Circulation 2012; 126:1695-704. [PMID: 22914687 DOI: 10.1161/circulationaha.112.116996] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Supravalvular aortic stenosis (SVAS) is caused by mutations in the elastin (ELN) gene and is characterized by abnormal proliferation of vascular smooth muscle cells (SMCs) that can lead to narrowing or blockage of the ascending aorta and other arterial vessels. Having patient-specific SMCs available may facilitate the study of disease mechanisms and development of novel therapeutic interventions. METHODS AND RESULTS Here, we report the development of a human induced pluripotent stem cell (iPSC) line from a patient with SVAS caused by the premature termination in exon 10 of the ELN gene resulting from an exon 9 four-nucleotide insertion. We showed that SVAS iPSC-derived SMCs (iPSC-SMCs) had significantly fewer organized networks of smooth muscle α-actin filament bundles, a hallmark of mature contractile SMCs, compared with control iPSC-SMCs. The addition of elastin recombinant protein or enhancement of small GTPase RhoA signaling was able to rescue the formation of smooth muscle α-actin filament bundles in SVAS iPSC-SMCs. Cell counts and BrdU analysis revealed a significantly higher proliferation rate in SVAS iPSC-SMCs than control iPSC-SMCs. Furthermore, SVAS iPSC-SMCs migrated at a markedly higher rate to the chemotactic agent platelet-derived growth factor compared with the control iPSC-SMCs. We also provided evidence that elevated activity of extracellular signal-regulated kinase 1/2 is required for hyperproliferation of SVAS iPSC-SMCs. The phenotype was confirmed in iPSC-SMCs generated from a patient with deletion of elastin owing to Williams-Beuren syndrome. CONCLUSIONS SVAS iPSC-SMCs recapitulate key pathological features of patients with SVAS and may provide a promising strategy to study disease mechanisms and to develop novel therapies.
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Affiliation(s)
- Xin Ge
- YCVRC Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, Yale Stem Cell Center, Ste 773A, 300 George St, New Haven, CT 06510, USA
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Yue Z. 3.7.2 GENETIC LRRK2 MODELS: DISSECTING PATHOGENIC PATHWAY AND EXPLORING CLINICAL APPLICATIONS IN PD. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70711-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Buitrago S, Wirtz N, Yue Z, Kleinöder H, Mester J. Effects of load and training modes on physiological and metabolic responses in resistance exercise. Eur J Appl Physiol 2011; 112:2739-48. [PMID: 22116573 DOI: 10.1007/s00421-011-2249-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 11/12/2011] [Indexed: 10/15/2022]
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Lee MY, Sun B, Schliffke S, Yue Z, Ye M, Paavola J, Bozkulak EC, Amos PJ, Ren Y, Ju R, Jung YW, Ge X, Yue L, Ehrlich BE, Qyang Y. Derivation of functional ventricular cardiomyocytes using endogenous promoter sequence from murine embryonic stem cells. Stem Cell Res 2011; 8:49-57. [PMID: 22099020 DOI: 10.1016/j.scr.2011.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 08/09/2011] [Accepted: 08/11/2011] [Indexed: 01/28/2023] Open
Abstract
The purpose of this study is to establish a murine embryonic stem cell (mESC) line for isolation of functional ventricular cardiomyocytes (VCMs) and then to characterize the derived VCMs. By crossing the myosin light chain 2v (Mlc2v)-Cre mouse line with the reporter strain Rosa26-yellow fluorescent protein (YFP), we generated mESC lines from these double transgenic mice, in which Cre-mediated removal of a stop sequence results in the expression of YFP under the control of the ubiquitously active Rosa26 promoter specifically in the VCM. After induction of differentiation via embryoid body (EB) formation, contracting YFP(+) cells were detected within EBs and isolated by fluorescence-activated cell sorting. N-cadherin, the cadherin expressed in cardiomyocytes, and the major cardiac connexin (Cx) isoform, Cx43, were detected in the respective adherens and gap junctions in these VCMs. Using current clamp recordings we demonstrated that mESC-derived VCMs exhibited action potential characteristics comparable to those of neonatal mouse VCMs. Real-time intracellular calcium [Ca(2+)](i) imaging showed rhythmic intracellular calcium transients in these VCMs. The amplitude and frequency of calcium transients were increased by isoproterenol stimulation, suggesting the existence of functional β-adrenergic signaling. Moreover, [Ca(2+)](i) oscillations responded to increasing frequencies of external electrical stimulation, indicating that VCMs have functional excitation-contraction coupling, a key factor for the ultimate cardiac contractile performance. The present study makes possible the production of homogeneous and functional VCMs for basic research as well as for cardiac repair and regeneration.
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Affiliation(s)
- Min Young Lee
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06520, USA
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Zhang M, Lv Y, Yue Z, Islam A, Rehana B, Bao E, Hartung J. Effects of transportation on expression of Hsp90, Hsp70, Hsp27 and αB-crystallin in the pig stomach. Vet Rec 2011; 169:312. [PMID: 21862472 DOI: 10.1136/vr.d4775] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Twenty pigs were randomly divided into four groups based on the amount of time spent in transport (zero, one, two or four hours). Pathological examination of all transported pigs showed that exfoliation of chief cells from the gastric surface occurred in pigs during transportation. These results imply that integrity of the gastric mucosa was compromised by damage occurring during the four-hour transportation, despite the fact that gastric ulcers were not present. Levels of Hsp90 expression in stomach tissues were significantly decreased (P<0.01) after two-hour transportation, but Hsp70 levels increased significantly (P<0.05) after one, two and four hours of transportation. Hsp27 levels remained relatively stable independent of the length of transport. Levels of αB-crystallin expression in the stomach were significantly increased (P<0.05) after four hours of transportation. Variations in Hsp90, Hsp70, Hsp27 and αB-crystallin levels suggest that distinct protective functions are modulated by different Hsps in stomach tissues during transportation. Alterations in Hsp70 and αB-crystallin expression appear to be associated with protective functions, as no apparent gastric ulcers were present in pigs that underwent four hours of transportation. Levels of heat shock transcription factor-1, which regulate the expression of Hsps, remained relatively stable independent of the transportation period.
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Affiliation(s)
- M Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
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Wang P, Jiang S, Cui Y, Yue Z, Su C, Sun J, Sheng S, Tian J. The n-terminal 5-MER peptide analogue P165 of amyloid precursor protein exerts protective effects on SH-SY5Y cells and rat hippocampus neuronal synapses. Neuroscience 2010; 173:169-78. [PMID: 21055450 DOI: 10.1016/j.neuroscience.2010.10.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 10/08/2010] [Accepted: 10/26/2010] [Indexed: 11/28/2022]
Abstract
The disturbance of the insulin-signaling pathway plays an important role in Alzheimer's disease. Resistance to insulin signaling renders neurons energy-deficient and vulnerable to oxidization or other metabolic insults and impairs synaptic plasticity. In search of neuroprotective drugs, we synthesized a peptide analogue, P165, an active domain of the soluble amyloid precursor protein, which is resistant to degradation and is suitable for oral administration in a clinical setting. Initially, we confirmed that P165 can protect cells from streptozotocin-caused damage and stimulate cell outgrowth using cultured SH-SY5Y cell lines treated with streptozotocin. P165 significantly reduced lactate dehydrogenase leakage from damaged cells, thereby rescuing cell energy production. Insulin signaling such as insulin receptor substrate-1 (IRS-1) and phosphoinositide 3-kinase (PI3K) proteins were upregulated to stimulate cell survival and growth. We proceeded to investigate the effect of P165 on streptozotocin-treated Alzheimer's disease (AD) rats. The data showed that P165 protected synaptic loss and dysfunction by increasing synaptophysin and PSD-95 (post synaptic density-95), while simultaneously decreasing α-synuclein expression. Moreover, animal behavior testing clearly showed that P165 increased rats' learning and memory activity. Overall, these results constitute evidence that peptide analogue 165 may protect synapse and improve learning and memory ability in AD.
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Affiliation(s)
- P Wang
- Key Laboratory of Chinese Internal Medicine (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, People's Republic of China
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Yue Z, Xiong S, Sun L, Huang W, Mo Y, Huang L, Jiang X, Chen S, Hu B, Wang Y. Novel compound mutations of SMARCAL1 associated with severe Schimke immuno-osseous dysplasia in a Chinese patient. Nephrol Dial Transplant 2010; 25:1697-1702. [DOI: 10.1093/ndt/gfq071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Sun Q, Li W, She R, Wang D, Han D, Li R, Ding Y, Yue Z. Evidence for a role of mast cells in the mucosal injury induced by Newcastle disease virus. Poult Sci 2009; 88:554-61. [PMID: 19211524 DOI: 10.3382/ps.2008-00468] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have previously demonstrated that mast cells were significantly increased during Newcastle disease virus (NDV) infection, but their precise role in the process is unknown. In this study, we investigated the role of mast cells in this process by using ketotifen, a mast cell membrane stabilizer. A total of 60 specific-pathogen-free chickens were randomly divided into 3 groups of 20 birds each (NDV-infected group, ketotifen-pretreated group, and the control group). The ketotifen-pretreated group was administered orally with ketotifen before NDV infection. On 12, 24, and 48 h postinfection, 5 chickens from each treatment were killed. Tissues of proventriculus were collected to quantify mast cells, the content of tryptase and histamine by cytochemistry, immunohistochemistry, and fluorescence analysis, respectively. The results showed that the population of mast cells and the content of tryptase and histamine were increased significantly in the proventriculus (P < 0.01) of infected birds compared with the control group. An acute mucosal injury was observed in the infected chickens. In contrast, among chickens pretreated with ketotifen, followed by NDV infection, the mast cells number and the content of tryptase and histamine were decreased significantly (P < 0.01). Likely as a result, the mucosal injury was remitted remarkably. The overall results of this experiment suggest that mast cells are implicated in NDV-induced mucosal injury. Inhibition of mast cell mediator release may represent a novel strategy to modulate this process.
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Affiliation(s)
- Q Sun
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Bao H, She R, Liu T, Zhang Y, Peng KS, Luo D, Yue Z, Ding Y, Hu Y, Liu W, Zhai L. Effects of pig antibacterial peptides on growth performance and intestine mucosal immune of broiler chickens. Poult Sci 2009; 88:291-7. [PMID: 19151342 DOI: 10.3382/ps.2008-00330] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Currently, substitutions for antibiotic growth promoters in animals are attracting interest. This study investigated the effects of pig antibacterial peptides (PABP) on growth performance and small intestine mucosal immune responses in broilers. Three hundred 1-d-old Arbor Acre male broiler chickens were randomly allocated to 5 groups with 60 birds per group. The groups were control group; PABP administered in drinking water at 20 and 30 mg/L of water; or PABP supplemented in feed at 150 and 200 mg/kg of diet. The birds were fed a corn-soybean based diet for 6 wk. Chickens were weighed weekly and killed after 42 d of feeding, and growth performance was measured. Samples of the duodenum and jejunum were collected. The villus height, mucosa thickness, alkaline phosphatase activity, and numbers of secreting IgA and goblet cells were evaluated. The PABP-treated groups had greater BW and average daily gain, greater height of villus and thickness of gut mucosa, greater activity of alkaline phosphatase, higher ratio of secreting IgA, and a greater number of goblet cells compared with the control group (P<0.05). In conclusion, PABP can improve the growth performance, increase the intestinal ability to absorb nutrients, and improve the mucosal immunity of the intestine.
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Affiliation(s)
- H Bao
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
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Arsov I, Li X, Matthews G, Coradin J, Hartmann B, Simon AK, Sealfon SC, Yue Z. BAC-mediated transgenic expression of fluorescent autophagic protein Beclin 1 reveals a role for Beclin 1 in lymphocyte development. Cell Death Differ 2008; 15:1385-95. [PMID: 18451870 DOI: 10.1038/cdd.2008.59] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Beclin 1/Atg6 is an essential component of the evolutionary conserved PtdIns(3)-kinase (Vps34) protein complex that regulates macroautophagy (autophagy) in eukaryotic cells and also interacts with antiapoptotic Bcl-2 family members, Bcl-2, and Bcl-x(L). To elucidate the physiological function of Beclin 1, we generated transgenic mice producing a green fluorescent Beclin 1 protein (Beclin 1-GFP) under Beclin 1 endogenous regulation. The beclin 1-GFP transgene is functional because it completely rescues early embryonic lethality in beclin 1-deficient mice. The transgenic mice appear normal, with undetected change in basal autophagy levels in different tissues, despite the additional expression of functional Beclin 1-GFP. Staining of Beclin 1-GFP shows mostly diffuse cytoplasmic distribution in various tissues. Detailed analysis of the transgene expression by flow cytometry reveals a Bcl-2-like biphasic expression pattern in developing T and B cells, as well as differential regulation of expression in mature versus immature thymocytes following in vitro stimulation. Moreover, thymocytes expressing high Beclin 1-GFP levels appear increasingly sensitive to glucocorticoid-induced apoptosis in vitro. Our results, therefore, support a role for Beclin 1 in lymphocyte development involving cross talk between autophagy and apoptosis.
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Affiliation(s)
- I Arsov
- Department of Biology, York College, The City University of New York, Jamaica, NY, USA.
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