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Zhang H, He YB, Wu PF, Zhang SF, Xie ZX, Li DX, Lin L, Chen F, Wang DZ. Functional Differences in the Blooming Phytoplankton Heterosigma akashiwo and Prorocentrum donghaiense Revealed by Comparative Metaproteomics. Appl Environ Microbiol 2019; 85:e01425-19. [PMID: 31375486 PMCID: PMC6752027 DOI: 10.1128/aem.01425-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 06/25/2019] [Accepted: 07/07/2019] [Indexed: 12/21/2022] Open
Abstract
Phytoplankton blooms are natural phenomena in the ocean, which are the results of rapid cell growth of some phytoplankton species in a unique environment. However, little is known about the molecular events occurring during the bloom. Here, we compared metaproteomes of two phytoplankton Heterosigma akashiwo and Prorocentrum donghaiense in the coastal East China Sea. H. akashiwo and P. donghaiense accounted for 7.82% and 4.74% of the phytoplankton community protein abundances in the nonbloom sample, whereas they contributed to 60.13% and 78.09%, respectively, in their individual blooming samples. Compared with P. donghaiense, H. akashiwo possessed a significantly higher abundance of light-harvesting complex proteins, carbonic anhydrasem and RuBisCO. The blooming H. akashiwo cells expressed more proteins related to external nutrient acquisition, such as bicarbonate transporter SLC4, ammonium transporter, nitrite transporter, and alkaline phosphatase, while the blooming P. donghaiense cells highly expressed proteins related to extra- and intracellular organic nutrient utilization, such as amino acid transporter, 5'-nucleotidase, acid phosphatase, and tripeptidyl-peptidase. The strong capabilities of light harvesting, as well as acquisition and assimilation of inorganic carbon, nitrogen, and phosphorus, facilitated the formation of the H. akashiwo bloom under the high turbidity and inorganic nutrient-sufficient condition, whereas the competitive advantages in organic nutrient acquisition and reallocation guaranteed the occurrence of the P. donghaiense bloom under the inorganic nutrient-insufficient condition. This study highlights the power of metaproteomics for revealing the underlying molecular behaviors of different coexisting phytoplankton species and advances our knowledge on the formation of phytoplankton blooms.IMPORTANCE A deep understanding of the mechanisms driving bloom formation is a prerequisite for effective bloom management. Metaproteomics was applied in this study to reveal the adaptive and responsive strategies of two coexisting phytoplankton species, H. akashiwo and P. donghaiense, during their bloom periods. Metabolic features and niche divergence in light harvesting, as well as carbon, nitrogen, and phosphorus acquisition and assimilation likely promoted the bloom occurrence under different environments. The molecular behaviors of coexisting bloom-causing species will give clues for bloom monitoring and management in the oceans.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Yan-Bin He
- BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Peng-Fei Wu
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Shu-Feng Zhang
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Zhang-Xian Xie
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Dong-Xu Li
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Lin Lin
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Feng Chen
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, Maryland, USA
| | - Da-Zhi Wang
- State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology, Xiamen University, Xiamen, China
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Feng XG, Lin GY, Tang YS, Wu PF. Cytomegalovirus-associated acute respiratory failure in lupus patients: case reports in relation to cytomegalovirus biology. Lupus 2019; 28:1354-1359. [PMID: 31551032 DOI: 10.1177/0961203319876990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
With the wide use of immunosuppressive agents, life-threatening cytomegalovirus-associated acute respiratory failure occurs frequently. However, this condition is yet to be fully recognized and the therapeutic approach to it can only be based on comprehensive protocols rather than the biological characteristics of cytomegalovirus. We describe three acute respiratory failure events that were related to the pathogenicity of cytomegalovirus, the primary cytopathic effect and secondary antiviral immunity-mediated damage. All cytomegalovirus infection occurred after immunosuppressive usage while the acute respiratory failure events took place in different clinical settings. The first acute respiratory failure event originated from the immunoinflammatory response after cytomegalovirus infection was circumscribed, while the second resulted from cytomegalovirus reactivation and the third was caused by the combined effect of acute cytomegalovirus infection and the subsequent immunoinflammatory response. According to the clinical setting, corresponding therapeutic approaches (sequential or combined strategy) were carried out. All the patients here presented were responsive to the above therapeutic strategies. Consequently, cytomegalovirus-associated acute respiratory failure in systemic lupus erythematosus patients should be carefully differentiated and a sequential or combined strategy should be carried out according to the clinical setting. Overall, we find that there are three patterns of cytomegalovirus-associated acute respiratory failure in systemic lupus erythematosus patients and propose a novel therapeutic strategy in relation to cytomegalovirus biology.
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Affiliation(s)
- X G Feng
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - G Y Lin
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - Y S Tang
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - P F Wu
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
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Zhou HY, He JG, Hu ZL, Xue SG, Xu JF, Cui QQ, Gao SQ, Zhou B, Wu PF, Long LH, Wang F, Chen JG. A-Kinase Anchoring Protein 150 and Protein Kinase A Complex in the Basolateral Amygdala Contributes to Depressive-like Behaviors Induced by Chronic Restraint Stress. Biol Psychiatry 2019; 86:131-142. [PMID: 31076080 DOI: 10.1016/j.biopsych.2019.03.967] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 02/11/2019] [Accepted: 03/05/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The basolateral amygdala (BLA) has been widely implicated in the pathophysiology of major depressive disorder. A-kinase anchoring protein 150 (AKAP150) directs kinases and phosphatases to synaptic glutamate receptors, controlling synaptic transmission and plasticity. However, the role of the AKAP150 in the BLA in major depressive disorder remains poorly understood. METHODS Depressive-like behaviors in C57BL/6J mice were developed by chronic restraint stress (CRS). Mice received either intra-BLA injection of lentivirus-expressing Akap5 short hairpin RNA or Ht-31, a peptide to disrupt the interaction of AKAP150 and protein kinase A (PKA), followed by depressive-like behavioral tests. Alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid glutamate receptor (AMPAR)-mediated miniature excitatory postsynaptic currents were recorded by whole-cell patch-clamp techniques. RESULTS Chronic stress exposure induced depressive-like behaviors, which were accompanied by an increase in total and synaptic AKAP150 expression in the BLA. Accordingly, CRS facilitated the association of AKAP150 with PKA, but not of calcineurin in the BLA. Intra-BLA infusion of lentivirus-expressing Akap5 short hairpin RNA or Ht-31 prevented depressive-like behaviors and normalized phosphorylation of serine 845 and surface expression of AMPAR subunit 1 (GluA1) in the BLA of CRS mice. Finally, blockage of AKAP150-PKA complex signaling rescued the changes in AMPAR-mediated miniature excitatory postsynaptic currents in depressive-like mice. CONCLUSIONS These results suggest that AKAP150-PKA directly modulates BLA neuronal synaptic strength, and that AKAP150-PKA-GluA1 streamline signaling complex is responsible for CRS-induced disruption of synaptic AMPAR-mediated transmission and depressive-like behaviors in mice.
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Affiliation(s)
- Hai-Yun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin-Gang He
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China
| | - Shi-Ge Xue
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun-Feng Xu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian-Qian Cui
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang-Qi Gao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bin Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China.
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Huazhong University of Science and Technology, Ministry of Education of China, Wuhan, China.
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Luo H, Wu PF, Han QQ, Cao Y, Deng SL, Wang J, Deng Q, Wang F, Chen JG. Reactive Sulfur Species Emerge as Gliotransmitters to Support Memory via Sulfuration-Dependent Gating of NR2A-Containing N-Methyl-d-Aspartate Subtype Glutamate Receptor Function. Antioxid Redox Signal 2019; 30:1880-1899. [PMID: 30187770 DOI: 10.1089/ars.2018.7503] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AIMS Astrocytes have been revealed as a controller of synaptic plasticity and memory via releasing gliotransmitters. Our recent findings showed that reactive sulfur species (RSS), including hydrogen sulfide (H2S) and polysulfide (H2Sn), regulated the availability of d-serine, which is a well-known gliotransmitter that is involved in synaptic plasticity. An interesting question is whether RSS, which are small molecules, can function as direct gliotransmitters to integrate astrocyte-neuron interactions throughout the memory process. RESULTS We found that hippocampal RSS level increased significantly in response to learning. We further demonstrated that the activity-triggered RSS signal controlled memory formation by using pharmacological and genetic approaches. The RSS-supporting memory was primarily conferred by enzymes that were mainly located in astrocytes, including cystathionine β-synthase (CBS) and mercaptopyruvate sulfurtransferase (3-MST), and the memory-promoting effects were mostly dependent on sulfration of the NR2A subunit of N-methyl-d-aspartate subtype glutamate receptors (NMDARs). Further, RSS were demonstrated to buffer the strong inhibitory effect of synaptically released zinc on NR2A-containing NMDARs. Innovation and Conclusion: These results suggest that glial-derived RSS signals can serve as direct gliotransmitters that regulate memory formation through the redox modulation of postsynaptic receptors; this conclusion will enrich the gliotransmission hypothesis.
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Affiliation(s)
- Han Luo
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian-Qian Han
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Cao
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Si-Long Deng
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ji Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiao Deng
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,2 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.,3 The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,4 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,5 The Collaborative-Innovation Center for Brain Science, Wuhan, China
| | - Jian-Guo Chen
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,2 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.,3 The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,4 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,5 The Collaborative-Innovation Center for Brain Science, Wuhan, China
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Hao JQ, Zhang QK, Zhou YX, Chen LH, Wu PF. Association between circulating leptin concentration and G-2548A gene polymorphism in patients with breast cancer: a meta-analysis. Arch Med Sci 2019; 15:275-283. [PMID: 30899280 PMCID: PMC6425221 DOI: 10.5114/aoms.2018.75638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/15/2018] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The aim of this meta-analysis was to summarize the evidence on the serum/plasma leptin concentrations in breast cancer (BC) patients, as well as the associations between leptin G-2548A gene polymorphisms and susceptibility to BC. MATERIAL AND METHODS Potentially relevant studies about serum/plasma leptin levels and leptin G-2548A gene polymorphism were selected using the electronic databases PubMed, EMBASE and The Cochrane Library (from January 1 1995 to Jun 30 2017, no language restrictions). The potential sources of heterogeneity were assessed by the Q statistic and quantified using I2 ; publication bias was qualitatively assessed by funnel plot and quantitatively assessed by Egger's linear regression test. RESULTS A total of 1141 articles were retrieved after database searches, and 27 studies with 9516 subjects (4542 BC patients/4974 controls) were finally included. The results indicated that BC patients had significantly higher leptin levels compared with healthy controls (SMD = 1.65, 95% CI: 1.21-2.09, p < 0.001), but there was no association between leptin G-2548A polymorphism and BC (OR = 1.05, 95% CI: 0.80-1.39, p = 0.722). Subgroup analyses demonstrated increased leptin levels in BC patients of different region, race, body mass index and waist circumference. CONCLUSIONS Our results revealed a significantly higher leptin level in BC patients than in healthy controls, but no association between leptin G-2548A polymorphism and BC susceptibility was found.
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Affiliation(s)
- Ji-Qing Hao
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Qian-Kun Zhang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Yi-Xin Zhou
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Li-Hao Chen
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Peng-Fei Wu
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
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Yang W, Wu PF, Ma JX, Liao MJ, Wang XH, Xu LS, Xu MH, Yi L. Sortilin promotes glioblastoma invasion and mesenchymal transition through GSK-3β/β-catenin/twist pathway. Cell Death Dis 2019; 10:208. [PMID: 30814514 PMCID: PMC6393543 DOI: 10.1038/s41419-019-1449-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 11/22/2018] [Revised: 02/02/2019] [Accepted: 02/12/2019] [Indexed: 12/21/2022]
Abstract
High aggressiveness is a hallmark of glioblastoma and predicts poor prognosis of patients with glioblastoma. The expression level of sortilin has been preliminarily reported to be elevated in high-grade glioma; however, the potential significance of sortilin in glioblastoma progression has not been elucidated. In this study, we investigated the oncogenic effect of sortilin in glioblastoma. Increased levels of sortilin were noted in the mesenchymal subtype of glioblastoma and highly aggressive subtypes of glioblastoma tissues and cell lines. In addition, high levels of sortilin predicted poor prognoses in patients with glioblastoma. Sortilin knockdown or inhibition with AF38469 (an orally bioavailable inhibitor of sortilin) significantly suppressed migration and invasion by inhibiting EMT-like mesenchymal transition in glioblastoma cells. Furthermore, we proved that sortilin promoted cell invasion mainly via Glycogen synthase kinase 3 beta (GSK-3β)/β-catenin/Twist-induced EMT-like mesenchymal transition in glioblastoma. Taken together, our results demonstrate a critical role of sortilin in glioblastoma invasion and EMT-like mesenchymal transition, indicating that sortilin contributes to glioblastoma progression. These data also highlight the dramatic antitumor effects of AF38469 in glioblastoma, suggesting that AF38469 is a potentially powerful antitumor agent for sortilin-overexpressing human glioblastoma.
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Affiliation(s)
- Wei Yang
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Peng-Fei Wu
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Jian-Xing Ma
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Mao-Jun Liao
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Xu-Hui Wang
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Lun-Shan Xu
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China
| | - Min-Hui Xu
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China.
| | - Liang Yi
- Department of Neurosurgery, Daping Hospital and Institute Research of Surgery, Army Medical University, Chongqing, 400042, China.
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Shen ZC, Wu PF, Wang F, Xia ZX, Deng Q, Nie TL, Zhang SQ, Zheng HL, Liu WH, Lu JJ, Gao SQ, Yao XP, Long LH, Hu ZL, Chen JG. Gephyrin Palmitoylation in Basolateral Amygdala Mediates the Anxiolytic Action of Benzodiazepine. Biol Psychiatry 2019; 85:202-213. [PMID: 30454851 DOI: 10.1016/j.biopsych.2018.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 08/31/2018] [Accepted: 09/04/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Benzodiazepines (BZDs) have been used to treat anxiety disorders for more than five decades as the allosteric modulator of the gamma-aminobutyric acid A receptor (GABAAR). Little is known about other mechanisms of BZDs. Here, we describe how the rapid stabilization of postsynaptic GABAAR is essential and sufficient for the anxiolytic effect of BZDs via a palmitoylation-dependent mechanism. METHODS Palmitoylated proteins in the basolateral amygdala (BLA) of rats with different anxious states were assessed by a biotin exchange protocol. Both pharmacological and genetic approaches were used to investigate the role of palmitoylation in anxiety behavior. Electrophysiological recording, reverse transcription polymerase chain reaction, Western blotting, and coimmunoprecipitation were used to investigate the mechanisms. RESULTS Highly anxious rats were accompanied by the deficiency of gephyrin palmitoylation and decreased the synaptic function of GABAAR in the BLA. We then identified that the dysfunction of DHHC12, a palmitoyl acyltransferase that specifically palmitoylates gephyrin, contributed to the high-anxious state. Furthermore, diazepam, as an anxiolytic drug targeting GABAARs, was found to increase gephyrin palmitoylation in the BLA via a GABAAR-dependent manner to activate DHHC12. The anxiolytic effect of diazepam was nearly abolished by the DHHC12 knockdown. Specifically, similar to the effect of BZD, the overexpression of DHHC12 in the BLA exerted a significant anxiolytic action, which was prevented by flumazenil. CONCLUSIONS Our results support the view that the strength of inhibitory synapse was controlled by gephyrin palmitoylation in vivo and proposes a previously unknown palmitoylation-centered mode of BZD's action.
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Affiliation(s)
- Zu-Cheng Shen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Collaborative-Innovation Center for Brain Science, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China.
| | - Zhi-Xuan Xia
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiao Deng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tai-Lei Nie
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shao-Qi Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui-Ling Zheng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Hui Liu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia-Jing Lu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang-Qi Gao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xia-Ping Yao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Collaborative-Innovation Center for Brain Science, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China.
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Li K, Chen HS, Li D, Li HH, Wang J, Jia L, Wu PF, Long LH, Hu ZL, Chen JG, Wang F. SAR405, a Highly Specific VPS34 Inhibitor, Disrupts Auditory Fear Memory Consolidation of Mice via Facilitation of Inhibitory Neurotransmission in Basolateral Amygdala. Biol Psychiatry 2019; 85:214-225. [PMID: 30253884 DOI: 10.1016/j.biopsych.2018.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 07/18/2018] [Accepted: 07/29/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Autophagy has been demonstrated to play an important role in memory deficits as well as the degradation of neurotransmitter receptors. SAR405 is a newly discovered inhibitor that can specifically inhibit vacuolar sorting protein 34 and prevent autophagosome biogenesis. However, the effects of SAR405 on memory processes remain largely unknown. METHODS Western blotting, immunofluorescence, and transmission electron microscopy were used to assess the level of autophagy after fear conditioning and SAR405 treatment. Behavioral tests, biotinylation assay, electrophysiology, and co-immunoprecipitation were used to unravel the mechanisms of SAR405 in memory consolidation. RESULTS SAR405 infusion into the basolateral amygdala impaired long-term memory through autophagy inhibition. Furthermore, the trafficking of gamma-aminobutyric acid type A receptors (GABAARs) following fear conditioning was disrupted by SAR405, and the decreased frequency and amplitude of miniature inhibitory postsynaptic currents induced by fear conditioning were also reversed by SAR405, suggesting that SAR405 disrupted memory consolidation through blockade of the downregulated inhibitory neurotransmission in basolateral amygdala. GABAAR-associated protein (GABARAP) and its interaction with GABAAR γ2 subunit were found to be upregulated after fear conditioning, and SAR405 could suppress this increased interaction. Moreover, disruption of the GABARAP-GABAAR binding by a trans-activating transcriptional activator-GABARAP inhibitory peptide blocked the decrease in surface expression of GABAARs and attenuated long-term memory. CONCLUSIONS The present study suggests that SAR405 can prevent the memory consolidation via intervening autophagy and GABAAR trafficking and has a potential therapeutic value for disorders characterized by exaggerated fear memories, such as posttraumatic stress disorder.
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Affiliation(s)
- Kuan Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Sheng Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Di Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hou-Hong Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ji Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Jia
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, the Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, the Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, the Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, the Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Collaborative Innovation Center for Brain Science, Wuhan, China.
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Laboratory of Neuropsychiatric Diseases, the Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, China; Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China; Collaborative Innovation Center for Brain Science, Wuhan, China.
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Wu PF, Li YW, Wang B, Jiang B, Tu ZM, Lv GH. Posterior Cervical Foraminotomy Via Full-Endoscopic Versus Microendoscopic Approach for Radiculopathy: A Systematic Review and Meta-analysis. Pain Physician 2019; 22:41-52. [PMID: 30700067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Recently posterior cervical foraminotomy (PCF) performed using a minimally-invasive surgery (MIS) approach for cervical radiculopathy due to lateral disc herniation or osseous foraminal stenosis has gained popularity. As 2 dominating MIS techniques, whether FE-PCF or MI-PCF provides superior clinical outcomes remains controversial. OBJECTIVES To compare clinical success rate, overall incidence of complications and reoperation rate between full-endoscopic posterior cervical foraminotomy (FE-PCF) and microendoscopic posterior cervical foraminotomy (MI-PCF) for cervical radiculopathy. STUDY DESIGN A systematic review and meta-analysis. METHODS A literature search of Pubmed, Embase and Web of Science was conducted to identify comparative or single-arm studies concerning FE-PCF or MI-PCF. The pooled results were performed by calculating the effect size based on the logit event rate and reported with 95% confidence intervals (CI). RESULTS A total of 26 articles with 2003 patients (FE-PCF, 377; MI-PCF, 1626) were included. The pooled clinical success rate was 93.6% (CI: 90.0%-95.9%) for the FE group and 89.9% (CI: 86.6%-92.5%) for the MI group, which was not statistically significant (P = 0.908). Overall complication rates were 6.1% (CI: 3.2%-11.3%) and 3.5% (CI: 2.7%-4.6%) for the FE group and the MI group, respectively, with no significant difference (P = 0.128). Nevertheless, the specific constituents showed apparent disparity, with transient nerve root palsy in the FE group (12/16, 75.0%) and dural tear in the MI group (20/47, 42.6%) being the most commonly reported. the pooled reoperation rate, the FE group (4.8%, CI: 2.9%-7.8%) and the MI group (5.3%, CI: 3.4%-8.2%), also demonstrated no statistical difference (P = 0.741). LIMITATIONS The indirect comparison eroded the reliability of results inevitably due to the paucity of randomized clinical trials or high quality prospective cohort studies. CONCLUSIONS Both FE-PCF and MI-PCF can offer an effective and relatively secure treatment for cervical radiculopathy. There was no significant difference in the pooled outcomes of clinical success rate, complication rate and reoperation rate between the 2 approaches. KEY WORDS Cervical radiculopathy, full-endoscopic, microendoscopic, posterior cervical foraminotomy, clinical outcome, complication, reoperation, meta-analysis.
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Affiliation(s)
- Peng-Fei Wu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; School of Life Sciences, Center for Medical Genetics , Central South University, Changsha, Hunan, China
| | - Ya-Wei Li
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Bing Wang
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Bin Jiang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhi-Ming Tu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guo-Hua Lv
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
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Zheng ZZ, Tu Z, Li Y, Dai Y, Wu PF, Jiang B, Xu J, Xiao S, Li L, Lv GH, Wang B. Full-Endoscopic Lumbar Discectomy for Lumbar Disc Herniation with Posterior Ring Apophysis Fracture: A Retrospective Study. World Neurosurg 2018; 124:S1878-8750(18)32877-8. [PMID: 30590214 DOI: 10.1016/j.wneu.2018.12.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The present retrospective study evaluated the clinical results of full-endoscopic lumbar discectomy (FELD) for the treatment of lumbar disc herniation (LDH) with lumbar posterior ring apophysis fracture (PRAF) using an interlaminar or a transforaminal approach at an inpatient surgery center. METHODS Patients with single-level LDH with type III PRAF who had undergone FELD using an interlaminar or a transforaminal approach from January 2010 to December 2015 were enrolled. The general data recorded included sex, age, location, surgical approach, operative time, hospital stay, perioperative complications, and recurrence. The presence of mobile and immobile fragments was documented. The clinical outcomes were evaluated using a visual analog scale for low back and leg pain. The Oswestry Disability Index was used for the functional assessment and the modified MacNab criteria for patient satisfaction. RESULTS FELD was performed successfully in all cases and no serious perioperative complications were observed. A mobile fragment of PRAS was present in 18 patients and an immobile fragment in 15 patients. Complications occurred in 2 of the 33 included patients; 1 dual tear (3.0%) and 1 transient dysesthesia (3.0%) that did not require further treatment. Recurrence developed in 1 patient (3.0%) and required reoperation. The visual analog scale and Oswestry Disability Index scores had significantly improved postoperatively at 3, 6, and 12 months and the final follow-up visit (P < 0.05). Using the modified MacNab criteria, an excellent or good rate of 93.4% was achieved. CONCLUSIONS FELD is a safe and effective minimally invasive approach for the treatment of LDH with type III PRAF. Sufficient preparation and experience are required to achieve satisfactory results.
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Affiliation(s)
- Zhen-Zhong Zheng
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhiming Tu
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yawei Li
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yuliang Dai
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Peng-Fei Wu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Bing Jiang
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Jietao Xu
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shipeng Xiao
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Lei Li
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Guo-Hua Lv
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
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Xia ZX, Shen ZC, Zhang SQ, Wang J, Nie TL, Deng Q, Chen JG, Wang F, Wu PF. De-palmitoylation by N-(tert-Butyl) hydroxylamine inhibits AMPAR-mediated synaptic transmission via affecting receptor distribution in postsynaptic densities. CNS Neurosci Ther 2018; 25:187-199. [PMID: 29911316 DOI: 10.1111/cns.12996] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 02/26/2018] [Revised: 05/24/2018] [Accepted: 05/28/2018] [Indexed: 12/16/2022] Open
Abstract
AIMS Palmitoylation of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) subunits or their "scaffold" proteins produce opposite effects on AMPAR surface delivery. Considering AMPARs have long been identified as suitable drug targets for central nervous system (CNS) disorders, targeting palmitoylation signaling to regulate AMPAR function emerges as a novel therapeutic strategy. However, until now, much less is known about the effect of palmitoylation-deficient state on AMPAR function. Herein, we set out to determine the effect of global de-palmitoylation on AMPAR surface expression and its function, using a special chemical tool, N-(tert-Butyl) hydroxylamine (NtBuHA). METHODS BS3 protein cross-linking, Western blot, immunoprecipitation, patch clamp, and biotin switch assay. RESULTS Bath application of NtBuHA (1.0 mM) reduced global palmitoylated proteins in the hippocampus of mice. Although NtBuHA (1.0 mM) did not affect the expression of ionotropic glutamate receptor subunits, it preferentially decreased the surface expression of AMPARs, not N-methyl-d-aspartate receptors (NMDARs). Notably, NtBuHA (1.0 mM) reduces AMPAR-mediated excitatory postsynaptic currents (mEPSCs) in the hippocampus. This effect may be largely due to the de-palmitoylation of postsynaptic density protein 95 (PSD95) and protein kinase A-anchoring proteins, both of which stabilized AMPAR synaptic delivery. Furthermore, we found that changing PSD95 palmitoylation by NtBuHA altered the association of PSD95 with stargazin, which interacted directly with AMPARs, but not NMDARs. CONCLUSION Our data suggest that the palmitoylation-deficient state initiated by NtBuHA preferentially reduces AMPAR function, which may potentially be used for the treatment of CNS disorders, especially infantile neuronal ceroid lipofuscinosis (Batten disease).
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Affiliation(s)
- Zhi-Xuan Xia
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zu-Cheng Shen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shao-Qi Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ji Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tai-Lei Nie
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiao Deng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,The Collaborative-Innovation Center for Brain Science, Wuhan, China.,The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,The Collaborative-Innovation Center for Brain Science, Wuhan, China.,The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China
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Liu G, Yuan D, Sun P, Liu W, Wu PF, Liu H, Yu GY. LINC00968 functions as an oncogene in osteosarcoma by activating the PI3K/AKT/mTOR signaling. J Cell Physiol 2018; 233:8639-8647. [PMID: 29904919 DOI: 10.1002/jcp.26624] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/28/2018] [Indexed: 12/20/2022]
Abstract
Osteosarcoma is recognized as a malignant tumor in the skeletal system. Long non-coding RNAs (lncRNAs) have been exhibited to play crucial roles in osteosarcoma development. Our current study focused on the biological effects and mechanism of LINC00968 in osteosarcoma pathogenesis. We observed that LINC00968 was dramatically elevated in osteosarcoma cells including U2OS, MG63, Saos-2, SW1353, and 143-B cells compared to human osteoblast cell line hFOB. Silence of LINC00968 inhibited osteosarcoma cell growth and proliferation in vitro. Reversely, overexpression of LINC00968 promoted osteosarcoma cell survival and cell colony formation ability in Saos-2 and 143-B cells. In addition, LINC00968 was able to induce osteosarcoma cell migration and invasion through up-regulating MMP-2 and MMP-9 protein levels. The phosphoinosmde-3-kinase/Protein Kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) pathway has been reported to participate in several cancer types. Here, in our study, we found that PI3K/AKT/mTOR pathway was involved in osteosarcoma progression. Knockdown of LINC00968 inactivated PI3K/AKT/mTOR signaling pathway in vitro. Subsequently, in vivo tumor xenografts were established using 143-B cells to investigate whether LINC00968 can induce osteosarcoma development in vivo. Consistently, it was indicated that inhibition of LINC00968 significantly inhibited osteosarcoma progression in vivo. Taken these together, in our research, LINC00968 could be provided as a novel prognostic biomarker and therapeutic target in osteosarcoma diagnosis and treatment.
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Affiliation(s)
- Gang Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Dongtang Yuan
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Peng Sun
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Weidong Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Peng-Fei Wu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Huan Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Guang-Yang Yu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
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Li YY, Chen XH, Xie ZX, Li DX, Wu PF, Kong LF, Lin L, Kao SJ, Wang DZ. Bacterial Diversity and Nitrogen Utilization Strategies in the Upper Layer of the Northwestern Pacific Ocean. Front Microbiol 2018; 9:797. [PMID: 29922238 PMCID: PMC5996900 DOI: 10.3389/fmicb.2018.00797] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/10/2018] [Indexed: 11/13/2022] Open
Abstract
Nitrogen (N) is a primary limiting nutrient for bacterial growth and productivity in the ocean. To better understand bacterial community and their N utilization strategy in different N regimes of the ocean, we examined bacterial diversity, diazotrophic diversity, and N utilization gene expressions in the northwestern Pacific Ocean (NWPO) using a combination of high-throughput sequencing and real-time qPCR methods. 521 and 204 different operational taxonomic units (OTUs) were identified in the 16s rRNA and nifH libraries from nine surface samples. Of the 16s rRNA gene OTUs, 11.9% were observed in all samples while 3.5 and 15.9% were detected only in N-sufficient and N-deficient samples. Proteobacteria, Cyanobacteria and Bacteroidetes dominated the bacterial community. Prochlorococcus and Pseudoalteromonas were the most abundant at the genus level in N-deficient regimes, while SAR86, Synechococcus and SAR92 were predominant in the Kuroshio-Oyashio confluence region. The distribution of the nifH gene presented great divergence among sampling stations: Cyanobacterium_UCYN-A dominated the N-deficient stations, while clusters related to the Alpha-, Beta-, and Gamma-Proteobacteria were abundant in other stations. Temperature was the main factor that determined bacterial community structure and diversity while concentration of NOX-N was significantly correlated with structure and distribution of N2-fixing microorganisms. Expression of the ammonium transporter was much higher than that of urea transporter subunit A (urtA) and ferredoxin-nitrate reductase, while urtA had an increased expression in N-deficient surface water. The predicted ammonium transporter and ammonium assimilation enzymes were most abundant in surface samples while urease and nitrogenase were more abundant in the N-deficient regions. These findings underscore the fact that marine bacteria have evolved diverse N utilization strategies to adapt to different N habitats, and that urea metabolism is of vital ecological importance in N-deficient regimes.
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Affiliation(s)
- Yuan-Yuan Li
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Xiao-Huang Chen
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Zhang-Xian Xie
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Dong-Xu Li
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Peng-Fei Wu
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Ling-Fen Kong
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Lin Lin
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Shuh-Ji Kao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Da-Zhi Wang
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, China
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Wang GH, Wu PF, Zhang LH, Fang P, Chen Y, Zuo G, Wu YQ, Wang SH, Sun GP. Use of erlotinib and thalidomide in advanced NSCLC patients with acquired resistance to erlotinib: A pilot study. Pathol Res Pract 2018; 214:263-267. [DOI: 10.1016/j.prp.2017.10.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/15/2017] [Accepted: 10/16/2017] [Indexed: 12/29/2022]
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Yin J, Lu ZP, Zhang K, Wu JL, Gao WT, Guo F, Chen JM, Wei JS, Wu PF, Xu D, Jiang KR, Miao Y. [Analysis of risk factors and outcomes for delayed gastric emptying following pancreaticoduodenectomy: a single center experience of 492 cases]. Zhonghua Wai Ke Za Zhi 2018; 56:35-40. [PMID: 29325351 DOI: 10.3760/cma.j.issn.0529-5815.2018.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate risk factors for delayed gastric emptying(DGE)following pancreaticoduodenectomy(PD). Methods: There were 492 consecutive patients who underwent PD in Pancreas Center, the First Affiliated Hospital with Nanjing Medical University between January 2012 and December 2014 were identified from a prospective database.There were 315 male and 177 female patients with a median age of 60.5 years.Univariate and multivariate analyses were performed to investigate the independent risk factors for clinically relevant DGE(CR-DGE). Results: The overall incidence of DGE was 29.5%, with Grade B and C occurring at 4.3% and 5.9%, respectively.In multivariate analysis, pancreatic duct diameter less than 3 mm(OR=1.888, P=0.042), pylorus-preserving pancreaticoduodenectomy(OR=2.627, P=0.005) and clinically relevant postoperative pancreatic fistula(OR=2.740, P=0.007) were independently associated with CR-DGE.Other main complications such as postoperative pancreatic fistula, pyoperitoneum, intraabdominal infection were also associated with the severity of DGE(χ(2)=21.360, 14.422, 14.378; P=0.011, 0.002, 0.002). DGE patients had a significantly prolonged postoperative length of stay(31(24-41)d vs. 13(11-17)d) and increased medical cost((122 367.5±66 068.3)yuan vs. (78 200.7±27 043.9)yuan)(both P<0.01). Conclusions: Small pancreatic duct, underwent pylorus-preserving pancreaticoduodenectomy and suffered postoperative pancreatic fistula might indicate a high risk of CR-DGE.
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Affiliation(s)
- J Yin
- Pancreas Center, the First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China
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Hou XY, Hu ZL, Zhang DZ, Lu W, Zhou J, Wu PF, Guan XL, Han QQ, Deng SL, Zhang H, Chen JG, Wang F. Rapid Antidepressant Effect of Hydrogen Sulfide: Evidence for Activation of mTORC1-TrkB-AMPA Receptor Pathways. Antioxid Redox Signal 2017; 27:472-488. [PMID: 28158955 DOI: 10.1089/ars.2016.6737] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
AIMS We asked whether hydrogen sulfide (H2S), as the third gaseous mediator, provided fast antidepressant effect on major depressive disorders and underlying mechanisms. RESULTS The decreased level of H2S was detected in the hippocampus of chronic unpredictable mild stress (CUMS)-treated rats. Acute administration of H2S either by H2S inhalation or by the donor NaHS produced a rapid antidepressant-like behavioral effect. Further investigation demonstrated that this effect of H2S was mediated by reversing the CUMS-induced decrease in dendritic spine density and required the activation of mammalian target of rapamycin (mTOR)C1 and neurotrophic TrkB receptors, which proceeded to increase synaptic protein expression, including postsynaptic density protein 95, synaptophysin, and α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor GluR1/2 subunit. INNOVATION This study provides the first direct evidence for detecting the decreased H2S in hippocampus of CUMS rats and the biological significance of H2S in treating major depression. CONCLUSION Our data demonstrate that H2S activates mTORC1 signaling cascades and thereby produces fast-onset antidepressant effect. The study provides a profound insight into H2S or its donors as potent preventive and therapeutic agents for intervention of depression. Antioxid. Redox Signal. 27, 472-488.
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Affiliation(s)
- Xiao-Yi Hou
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Zhuang-Li Hu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Deng-Zheng Zhang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Wei Lu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Jun Zhou
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Peng-Fei Wu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Xin-Lei Guan
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Qian-Qian Han
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Si-Long Deng
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Hai Zhang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
| | - Jian-Guo Chen
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
| | - Fang Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
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Li YL, Wu PF, Chen JG, Wang S, Han QQ, Li D, Wang W, Guan XL, Li D, Long LH, Huang JG, Wang F. Activity-Dependent Sulfhydration Signal Controls N-Methyl-D-Aspartate Subtype Glutamate Receptor-Dependent Synaptic Plasticity via Increasing d-Serine Availability. Antioxid Redox Signal 2017; 27:398-414. [PMID: 28051338 DOI: 10.1089/ars.2016.6936] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIMS Reactive sulfur species, including hydrogen sulfide (H2S) and its oxydates, have been raised as novel redox signaling molecules. The present study aimed at examining whether endogenous sulfhydration signal is required for long-term potentiation (LTP), a cellular model for memory. RESULTS In this study, we found that increased synaptic activity triggered sulfide generation and protein sulfhydration. Activity-triggered sulfide production was essential for N-methyl-D-aspartate subtype glutamate receptor (NMDAR)-dependent LTP via maintaining the availability of d-serine, a primary coagonist for synaptic NMDARs. Genetic knockdown of cystathionine β-synthase, not cystathionine γ-lyase, impaired LTP. H2S increased NMDAR-dependent LTP via sulfhydration and disinhibition of serine racemase (SR), a main synthetase of d-serine. We found that polysulfides also increased NMDAR-dependent LTP and NMDAR activity. In aged rats, the level of H2S and SR sulfhydration decreased significantly. Exogenous supplement of H2S restored the sulfhydration of SR, followed by the improvement of age-related deficits in LTP. Furthermore, boost of H2S signal in vivo improves hippocampus-dependent memory. Innovation and Conclusion: Our results provide a direct evidence for the biological significance of endogenous sulfhydration signal in synaptic plasticity. Exogenous supplement of H2S could be considered as the new therapeutic approach for the treatment of neurocognitive dysfunction after aging. Antioxid. Redox Signal. 27, 398-414.
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Affiliation(s)
- Yuan-Long Li
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Peng-Fei Wu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Jian-Guo Chen
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 The Collaborative Innovation Center for Brain Science , Wuhan, China
| | - Sheng Wang
- 6 School of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, China
| | - Qian-Qian Han
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Dan Li
- 7 Department of Pharmaceutics, College of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Wen Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Xin-Lei Guan
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Di Li
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Li-Hong Long
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Jian-Geng Huang
- 7 Department of Pharmaceutics, College of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Fang Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 The Collaborative Innovation Center for Brain Science , Wuhan, China
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68
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Wu Y, Lu ZP, Zhang JJ, Liu DF, Shi GD, Zhang C, Qin ZQ, Zhang JZ, He Y, Wu PF, Miao Y, Jiang KR. Association between ERCC2 Lys751Gln polymorphism and the risk of pancreatic cancer, especially among Asians: evidence from a meta-analysis. Oncotarget 2017; 8:50124-50132. [PMID: 28223548 PMCID: PMC5564835 DOI: 10.18632/oncotarget.15394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 01/29/2017] [Indexed: 12/21/2022] Open
Abstract
Single nucleotide polymorphisms (SNPs) of Excision repair cross-complementing group 2 (ERCC2) gene are suspected to affect the risk of pancreatic cancer. Many studies have reported the association between ERCC2 Lys751Gln polymorphism (rs13181) and the susceptibility to pancreatic cancer, but the outcomes remained controversial. To comprehensively determine this association, we conducted a meta-analysis based on a total of eight studies. Evidence for this association was obtained from the PubMed, EMBASE, Web of Science and Chinese National Knowledge Infrastructure (CNKI) databases. In general, a significant association was found between ERCC2 rs13181 polymorphism and the susceptibility to pancreatic cancer in four genetic models [CC vs. AA: OR = 1.56, (95% CI: 1.28-1.90), P = 0.470; AC/CC vs. AA: OR=1.20, (95% CI: 1.06-1.36), P = 0.396; CC vs. AC/CC OR = 1.50; (95% CI: 1.24-1.81), P = 0.530; C vs. A: OR=1.22, (95%CI:1.11-1.34), P = 0.159]. Furthermore, stratified analyses by ethnicity indicated a significant association only in the Asian population. Our results indicate that the ERCC2 Lys751Gln polymorphism might be important in stimulating the development of pancreatic cancer, especially for Asians.
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Affiliation(s)
- Yang Wu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Zi-Peng Lu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Jing-Jing Zhang
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Dong-Fang Liu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Guo-Dong Shi
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Chun Zhang
- Department of Digestive Diseases, Songjiang Branch Hospital of Shanghai First People's Hospital, Nanjing Medical University, Shanghai, China
| | - Zhi-Qiang Qin
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jian-Zhong Zhang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuan He
- Pancreas Institute, Nanjing Medical University, Nanjing, China.,Department of Gastrointestinal Surgery, Huai'an Affiliated to Xuzhou Medical University and Huai'an Second People's Hospital, Huai'an, China
| | - Peng-Fei Wu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Yi Miao
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Kui-Rong Jiang
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
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69
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Zhou K, Fan YD, Duysenbi S, Wu PF, Feng ZH, Qian Z, Zhang TR. siRNA-mediated silencing of bFGF gene inhibits the proliferation, migration, and invasion of human pituitary adenoma cells. Tumour Biol 2017; 39:1010428317704805. [PMID: 28656882 DOI: 10.1177/1010428317704805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Kai Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Yan-Dong Fan
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Serick Duysenbi
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Peng-Fei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Zhao-Hai Feng
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Zheng Qian
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Ting-Rong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
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70
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Wu PF, Xiao F, Sha C, Huang HP, Wang RC, Xiong NX. Node Scheduling Strategies for Achieving Full-View Area Coverage in Camera Sensor Networks. Sensors (Basel) 2017; 17:s17061303. [PMID: 28587304 PMCID: PMC5492733 DOI: 10.3390/s17061303] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/26/2017] [Accepted: 06/02/2017] [Indexed: 11/25/2022]
Abstract
Unlike conventional scalar sensors, camera sensors at different positions can capture a variety of views of an object. Based on this intrinsic property, a novel model called full-view coverage was proposed. We study the problem that how to select the minimum number of sensors to guarantee the full-view coverage for the given region of interest (ROI). To tackle this issue, we derive the constraint condition of the sensor positions for full-view neighborhood coverage with the minimum number of nodes around the point. Next, we prove that the full-view area coverage can be approximately guaranteed, as long as the regular hexagons decided by the virtual grid are seamlessly stitched. Then we present two solutions for camera sensor networks in two different deployment strategies. By computing the theoretically optimal length of the virtual grids, we put forward the deployment pattern algorithm (DPA) in the deterministic implementation. To reduce the redundancy in random deployment, we come up with a local neighboring-optimal selection algorithm (LNSA) for achieving the full-view coverage. Finally, extensive simulation results show the feasibility of our proposed solutions.
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Affiliation(s)
- Peng-Fei Wu
- School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China.
- Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China.
| | - Fu Xiao
- School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China.
- Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China.
| | - Chao Sha
- School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China.
- Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China.
- Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Hai-Ping Huang
- School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China.
- Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China.
| | - Ru-Chuan Wang
- School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China.
- Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China.
| | - Nai-Xue Xiong
- Department of Mathematics and Computer Science, Northeastern State University, Tahlequah, OK 74464, USA.
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71
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Wu PF, Liu LT, Wang L, Wang Y, Zhong M, Zhou ZB, Zou Z. A gyro-stabilized platform leveling loop for marine gravimeter. Rev Sci Instrum 2017; 88:064501. [PMID: 28667982 DOI: 10.1063/1.4984824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An ultra-low-frequency platform leveling loop based on a mixed sensitivity H∞ approach, which considers both the system bandwidth and response speed, was designed and applied to a prototype, two-axis gyro-stabilized platform marine gravimeter CHZ-II. The instrument was developed for regional surveys in deep ocean areas where high-resolution gravity measurements with accuracy 1 mGal are required. Horizontal accelerations in the surge and sway directions are suppressed about 60 dB in the frequency range 0.05 to 0.5 Hz. This typically improves the quality of the gravity data before any processing corrections. The time required for stabilizing the platform at the beginning of a survey line or course change is about 3 min, which improves the data collection efficiency. In May 2015, the first test was conducted in open sea conditions aboard the Chinese State Oceanic Administration's R/V Xiangyanghong 10. Sixteen traverses were run in the South China Sea to evaluate the loop performance. Platform motion tracks and gravity data from the survey were of satisfactory quality. According to analyses of 16 sets of calculated errors, the root mean square repeatability of the pitch and roll off-level angles were less than 10 and 20 arc sec, respectively, with a horizontal acceleration of about 50 Gal. Errors derived from the inability of the platform to maintain perfect sensor leveling during the survey cruise were less than 0.3 mGal.
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Affiliation(s)
- P F Wu
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - L T Liu
- Institute of Geodesy and Geophysics, Chinese Academy Sciences, Wuhan 430077, China
| | - L Wang
- Institute of Geodesy and Geophysics, Chinese Academy Sciences, Wuhan 430077, China
| | - Y Wang
- Institute of Geodesy and Geophysics, Chinese Academy Sciences, Wuhan 430077, China
| | - M Zhong
- Institute of Geodesy and Geophysics, Chinese Academy Sciences, Wuhan 430077, China
| | - Z B Zhou
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Zou
- Institute of Geodesy and Geophysics, Chinese Academy Sciences, Wuhan 430077, China
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72
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Wu PF, Wang D, Jin CF, Zhang XQ, Wu HQ, Zhang L, Ding FX, Xie KZ, Zhang GX. Polymorphisms of AluI and Hin1I loci of the IGF-1R gene and their genetic effects on growth traits in Bian chickens. Genet Mol Res 2017; 16:gmr-16-02-gmr.16029619. [PMID: 28437555 DOI: 10.4238/gmr16029619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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
Growth traits are important economic traits in broiler chicken production. AluI and Hin1I loci are two restriction sites, which are respectively located in exons 2 and 3 of the IGF-1R gene. These two loci are significantly related to the growth traits in Jinghai Yellow chickens. In this study, a correlation analysis was performed between these two loci and the growth traits of Bian chickens. The results showed a G376A mutation at the AluI site and a C919A mutation at the Hin1I site, which respectively resulted in three genotypes AA, AB, and BB in exon 2 and three genotypes CC, CD, and DD in exon 3. Correlation analysis showed that the female Bian chickens with the AA genotype of the AluI locus had higher body weights than those with the AB genotype (P < 0.05) at 8, 14, 16, and 18 weeks; individuals with CD genotype of Hin1I locus had higher body weights at 6, 8, 10, 12, and 14 weeks compared to the CC genotype (P < 0.05 or P < 0.01). Combined genotypes analysis showed that at the age of 8, 14, 16, and 18 weeks, the body weight of AACC genotype combination was higher than that of the ABCC genotype combination (P < 0.05); at the age of 6, 8, 12, 14, 16, and 18 weeks, the AACD genotype combination had higher (P < 0.05 or P < 0.01) body weight than that of the ABCC genotype.
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Affiliation(s)
- P F Wu
- College of Animal Science and Technology, , , China
| | - D Wang
- Poultry Institute, , , China
| | - C F Jin
- Coastal Area Institute of Agricultural Sciences of Jiangsu, Yancheng, Jiangsu, China
| | - X Q Zhang
- College of Animal Science and Technology, , , China
| | - H Q Wu
- College of Animal Science and Technology, , , China
| | - L Zhang
- Shanxi Livestock and Poultry Breeding Station, , China
| | - F X Ding
- Shanxi Livestock and Poultry Breeding Station, , China
| | - K Z Xie
- College of Animal Science and Technology, , , China
| | - G X Zhang
- College of Animal Science and Technology, , , China
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73
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Guan XL, Wu PF, Wang S, Zhang JJ, Shen ZC, Luo H, Chen H, Long LH, Chen JG, Wang F. Dimethyl sulfide protects against oxidative stress and extends lifespan via a methionine sulfoxide reductase A-dependent catalytic mechanism. Aging Cell 2017; 16:226-236. [PMID: 27790859 PMCID: PMC5334523 DOI: 10.1111/acel.12546] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2016] [Indexed: 02/06/2023] Open
Abstract
Methionine (Met) sulfoxide reductase A (MsrA) is a key endogenous antioxidative enzyme with longevity benefits in animals. Only very few approaches have been reported to enhance MsrA function. Recent reports have indicated that the antioxidant capability of MsrA may involve a Met oxidase activity that facilities the reaction of Met with reactive oxygen species (ROS). Herein, we used a homology modeling approach to search the substrates for the oxidase activity of MsrA. We found that dimethyl sulfide (DMS), a main metabolite that produced by marine algae, emerged as a good substrate for MsrA‐catalytic antioxidation. MsrA bounds to DMS and promoted its antioxidant capacity via facilitating the reaction of DMS with ROS through a sulfonium intermediate at residues Cys72, Tyr103, and Glu115, followed by the release of dimethyl sulfoxide (DMSO). DMS reduced the antimycin A‐induced ROS generation in cultured PC12 cells and alleviated oxidative stress. Supplement of DMS exhibited cytoprotection and extended longevity in both Caenorhabditis elegans and Drosophila. MsrA knockdown abolished the cytoprotective effect and the longevity benefits of DMS. Furthermore, we found that the level of physiologic DMS was at the low micromolar range in different tissues of mammals and its level decreased after aging. This study opened a new window to elucidate the biological role of DMS and other low‐molecular sulfides in the cytoprotection and aging.
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Affiliation(s)
- Xin-Lei Guan
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
- Department of Pharmacy; Wuhan Puai Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430033 China
| | - Peng-Fei Wu
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
- Key Laboratory of Neurological Diseases (HUST); Ministry of Education of China; Wuhan 430030 China
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province; Wuhan 430030 China
- Laboratory of Neuropsychiatric Diseases; The Institute of Brain Research; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Sheng Wang
- School of Life Science and Technology; Huazhong University of Science and Technology; Wuhan 430074 China
| | - Juan-Juan Zhang
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Zu-Cheng Shen
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Han Luo
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Hao Chen
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Li-Hong Long
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
- Key Laboratory of Neurological Diseases (HUST); Ministry of Education of China; Wuhan 430030 China
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province; Wuhan 430030 China
- Laboratory of Neuropsychiatric Diseases; The Institute of Brain Research; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Jian-Guo Chen
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
- Key Laboratory of Neurological Diseases (HUST); Ministry of Education of China; Wuhan 430030 China
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province; Wuhan 430030 China
- Laboratory of Neuropsychiatric Diseases; The Institute of Brain Research; Huazhong University of Science and Technology; Wuhan 430030 China
- The Collaborative Innovation Center for Brain Science; Wuhan 430030 China
| | - Fang Wang
- Department of Pharmacology; School of Basic Medicine; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
- Key Laboratory of Neurological Diseases (HUST); Ministry of Education of China; Wuhan 430030 China
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province; Wuhan 430030 China
- Laboratory of Neuropsychiatric Diseases; The Institute of Brain Research; Huazhong University of Science and Technology; Wuhan 430030 China
- The Collaborative Innovation Center for Brain Science; Wuhan 430030 China
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74
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Fan QC, Wu PF, Dai GJ, Zhang GX, Zhang T, Xue Q, Shi HQ, Wang JY. Identification of 19 loci for reproductive traits in a local Chinese chicken by genome-wide study. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019431. [PMID: 28340264 DOI: 10.4238/gmr16019431] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Reproductive traits have long been studied and have an important influence on chicken breeding. To identify quantitative trait loci affecting reproductive traits, a genome-wide analysis of a Chinese chicken breed was performed to analyze age at first egg body weight at first egg, first egg weight, egg weight at the age of 300 days, egg weight at the age of 462 days, egg number at the age of 300 days, egg number between the ages of 300 and 462 days and egg number at the age of 462 days. Nineteen SNPs related to reproductive traits were presented (P < 1.80E-6). Nine of the 19 SNPs had a significant effect on BWF, six SNPs were significantly associated with egg weight, and four SNPs were significantly associated with egg number. These SNPs were located near to or in 17 genes including FAM184B, HTT, KCNH7, CDC42BPA, KCNIP4, GJA5, CBFB, and GPC6. The present results may be beneficial for reproductive research and may be used in marker-assisted selection in future studies. These results could potentially benefit further breeding programs, especially in Jinghai Yellow Chicken.
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Affiliation(s)
- Q C Fan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - P F Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - G J Dai
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - G X Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - T Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Q Xue
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - H Q Shi
- Jiangsu Jinghai Poultry Industry Group CD, LTD, Nantong, Jiangsu, China
| | - J Y Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
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75
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Zhou K, Fan YD, Wu PF, Duysenbi S, Feng ZH, Du GJ, Zhang TR. MicroRNA-145 inhibits the activation of the mTOR signaling pathway to suppress the proliferation and invasion of invasive pituitary adenoma cells by targeting AKT3 in vivo and in vitro. Onco Targets Ther 2017; 10:1625-1635. [PMID: 28352194 PMCID: PMC5360400 DOI: 10.2147/ott.s118391] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Purpose This study was designed to explore how miR-145 regulates the mTOR signaling pathway in invasive pituitary adenoma (IPA) by targeting AKT3. Methods A total of 71 cases of IPA tissues and 66 cases of non-IPA tissues were obtained in this study. In vitro, the IPA cells were assigned into blank control, empty plasmid, miR-145 mimic, miR-145 inhibitor, miR-145 mimic + rapamycin, miR-145 inhibitor + rapamycin and rapamycin groups. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting were performed to detect the protein expressions of PI3K, AKT3, mTOR mRNA and the mRNA expression of miR-145 both in vivo and in vitro. Additionally, the S6K and RPS6 mRNA and protein expressions as well as the relative phosphorylation levels were determined in vitro. MTT assay, flow cytometry and transwell assay were used to testify the cell proliferation, apoptosis and invasion ability, respectively. Results The IPA tissues exhibited significantly lower expression of miR-145 but higher PI3K, AKT3 and mTOR mRNA and protein expressions when compared with the non-IPA tissues. Compared with the blank control and empty plasmid groups, the miR-145 mimic group showed significantly decreased PI3K, AKT3, mTOR, S6K and RPS6 mRNA and protein expressions as well as phosphorylation levels; besides, the IPA cell proliferation, migration and invasion ability were strongly inhibited, accompanied with the increased number of apoptotic cells. In the miR-145 inhibitor group, the PI3K, AKT3, mTOR, S6K and RPS6 mRNA and protein expressions as well as the phosphorylation levels were significantly increased; cell proliferation, migration and invasion ability were remarkably elevated, accompanied with reduced apoptotic cell number. Conclusion The study demonstrates that miR-145 inhibits the mTOR signaling pathway to suppress the IPA cell proliferation and invasion and promotes its apoptosis by targeting AKT3.
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Affiliation(s)
- Kai Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Yan-Dong Fan
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Peng-Fei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Serick Duysenbi
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Zhao-Hai Feng
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Guo-Jia Du
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
| | - Ting-Rong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, People's Republic of China
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Chen T, Yang YJ, Li YK, Liu J, Wu PF, Wang F, Chen JG, Long LH. Chronic administration tetrahydroxystilbene glucoside promotes hippocampal memory and synaptic plasticity and activates ERKs, CaMKII and SIRT1/miR-134 in vivo. J Ethnopharmacol 2016; 190:74-82. [PMID: 27275773 DOI: 10.1016/j.jep.2016.06.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 04/10/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Polygonum multiflorum Thunb is a traditional Chinese medicine with anti-aging effect. 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG) is generally considered as the main active component in Polygonum multiflorum Thunb. However, the effect of TSG on memory in adult is unclear till now. AIM OF STUDY 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG) is a polyphenols compound from Polygonum multiflorum Thunb. The present study aimed to evaluate the effect of chronic administration of TSG on hippocampal memory in normal mice. MATERIALS AND METHODS Behavioral test, electrophysiology and golgi staining were used to evaluate the effect of TSG on hippocampus-dependent memory and synaptic plasticity. Western blotting was used to determine the expression of ERK1/2, CaMKII, and SIRT1. Real-time quantitative PCR was explored to measure miR-134. RESULTS It was found that TSG enhanced hippocampus-dependent contextual fear memory and novel object recognition, facilitated hippocampal LTP and increased dendrite spine density in the CA1 region of hippocampus. TSG obviously promoted the phosphorylations of ERK1/2, CaMKII, CREB and the expression of BDNF in the hippocampus, with upregulation of silent information regulator 1 (SIRT1) and downregulation of miR-134. CONCLUSIONS Chronic administration of TSG promotes hippocampal memory in normal mice, suggesting that supplementary of TSG might serve as an enhancement of memory.
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Affiliation(s)
- Tao Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuan-Jian Yang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yan-Kun Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jing Liu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan 430030, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan 430030, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan 430030, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan 430030, China.
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Han J, Zhang H, Wang S, Zhou J, Luo Y, Long LH, Hu ZL, Wang F, Chen JG, Wu PF. Potentiation of Surface Stability of AMPA Receptors by Sulfhydryl Compounds: A Redox-Independent Effect by Disrupting Palmitoylation. Neurochem Res 2016; 41:2890-2903. [PMID: 27426946 DOI: 10.1007/s11064-016-2006-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 02/08/2016] [Revised: 07/04/2016] [Accepted: 07/12/2016] [Indexed: 02/07/2023]
Abstract
Sulfhydryl compounds such as dithiothreitol (DTT) and β-mercaptoethanol (β-ME) are widely used as redox agents. Previous studies in our group and other laboratory have reported the effect of sulfhydryl compounds on the function of glutamate receptor, including plasticity. Most of these findings have focused on the N-methyl-D-aspartic acid receptor, in contrast, very little is known about the effect of sulfhydryl compounds on α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor (AMPAR). Here, we observed that DTT (100 μM), β-ME (200 μM) and L-cysteine (200 μM) significantly elevated the surface expression of AMPARs via reducing their palmitoylation in rat hippocampal slices in vitro. Increased surface stability of AMPARs was not be correlated with the altered redox status, because the chemical entities containing mercapto group such as penicillamine (200 μM) and 2-mercapto-1-methylimidazole (200 μM) exhibited little effects on the surface expression of AMPARs. Computing results of Asp-His-His-Cys (DHHC) 3, the main enzyme for palmitoylation of AMPARs, indicated that only the alkyl mercaptans with chain-like configuration, such as DTT and β-ME, can enter the pocket of DHHC3 and disrupt the catalytic activity via inhibiting DHHC3 auto-palmitoylation. Collectively, our findings indicate a novel redox-independent mechanism underlay the multiple effects of thiol reductants on synaptic function.
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Affiliation(s)
- Jun Han
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Hai Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Sheng Wang
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Yi Luo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, 430030, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, 430030, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, 430030, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, 430030, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, 430030, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, 430030, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, 430030, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, 430030, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China. .,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, 430030, Hubei, China. .,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, 430030, Hubei, China. .,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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Li YL, Zhou J, Zhang H, Luo Y, Long LH, Hu ZL, Chen JG, Wang F, Wu PF. Hydrogen Sulfide Promotes Surface Insertion of Hippocampal AMPA Receptor GluR1 Subunit via Phosphorylating at Serine-831/Serine-845 Sites Through a Sulfhydration-Dependent Mechanism. CNS Neurosci Ther 2016; 22:789-98. [PMID: 27380893 DOI: 10.1111/cns.12585] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/13/2016] [Accepted: 06/10/2016] [Indexed: 12/14/2022] Open
Abstract
AIMS Hydrogen sulfide (H2 S) has been widely accepted as a gas neuromodulator to regulate synaptic function. Herein, we set out to determine the effect of H2 S on α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor (AMPAR) and its mechanism. METHODS BS(3) protein cross-linking, Western blot, patch clamp, and biotin-switch assay. RESULTS Bath application of H2 S donor NaHS (50 and 100 μM) rapidly promoted surface insertion of hippocampal AMPAR GluR1 subunit. This effect can be abolished by dithiothreitol (DTT) and mimicked by Na2 S4 , indicating that a sulfhydration-dependent mechanism may be involved. NaHS increased APMAR-mediated EPSC and led to an elevation of GluR2-lacking AMPAR content. Notably, NaHS did not increase the sulfhydration of AMPAR subunits, but it significantly increased the phosphorylation of GluR1 at serine-831 and serine-845 sites. Postsynaptic signal pathways that control GluR1 phosphorylation, such as protein kinase A (PKA), protein kinase C, and calcium/calmodulin-dependent protein kinases II (CaMKII), were sulfhydrated, activated by NaHS, and these effects can be occluded by DTT. H2 S increased S-sulfhydration of protein phosphatase type 2A (PP2A), which may be partially involved in the activation of signal pathways. CONCLUSION Our data suggest that H2 S promotes surface insertion of AMPARs via phosphorylation of GluR1, which depends on a sulfhydration-mediated mechanism.
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Affiliation(s)
- Yuan-Long Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hai Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yi Luo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Tian L, Lu ZP, Cai BB, Zhao LT, Qian D, Xu QC, Wu PF, Zhu Y, Zhang JJ, Du Q, Miao Y, Jiang KR. Activation of pancreatic stellate cells involves an EMT-like process. Int J Oncol 2016; 48:783-92. [PMID: 26647741 DOI: 10.3892/ijo.2015.3282] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 09/26/2015] [Indexed: 11/05/2022] Open
Abstract
Pancreatic adenocarcinoma (PDAC) and chronic pancreatitis (CP) are characterized by a desmoplastic reaction involving activated pancreatic stellate cells (PSCs). However, the mechanisms of PSC activation remain poorly understood. We examined whether the epithelial-mesenchymal transition (EMT) process might play a role in PSC activation. PSCs were isolated from a rat pancreas and characterized using immunofluorescence and immunocytochemistry. We evaluated changes in cell motility and in the expression levels of a panel of EMT-related genes during the PSC activation process. Activation of PSCs occurred after 48 h of in vitro culture, as indicated by a morphological change to a myofibroblastic shape and a decrease in the number of cytoplasmic lipid droplets. After activation, PSCs showed enhanced cell migration ability compared to quiescent cells. In addition, the expression of epithelial markers (E-cadherin, BMP7 and desmoplakin) decreased, while expression of mesenchymal markers (N-cadherin, vimentin, fibronectin1, collagen1α1 and S100A4) increased in activated PSCs. EMT-related transcription factors (Snail and Slug) were also upregulated after PSC activation. The concurrent increase in cell migration ability and alterations in EMT-related gene expression suggests that the activation of PSCs involves an EMT-like process. The knowledge that PSC activation involves an EMT‑like process may help to identify potential new therapeutic targets to alleviate pancreatic fibrosis in diseases like CP and PDAC.
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Affiliation(s)
- Lei Tian
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Zi-Peng Lu
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Bao-Bao Cai
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Liang-Tao Zhao
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Dong Qian
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Qing-Cheng Xu
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Peng-Fei Wu
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Yi Zhu
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Jing-Jing Zhang
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Qing Du
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Yi Miao
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Kui-Rong Jiang
- Pancreas Institute of Nanjing Medical University, Nanjing 210029, P.R. China
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80
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Liu JM, Wu PF, Rao J, Zhou J, Shen ZC, Luo H, Huang JG, Liang X, Long LH, Xie QG, Jiang FC, Wang F, Chen JG. ST09, a Novel Thioester Derivative of Tacrine, Alleviates Cognitive Deficits and Enhances Glucose Metabolism in Vascular Dementia Rats. CNS Neurosci Ther 2016; 22:220-9. [PMID: 26813743 DOI: 10.1111/cns.12495] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/30/2015] [Accepted: 11/18/2015] [Indexed: 01/31/2023] Open
Abstract
AIMS Chemical entities containing mercapto group have been increasingly attractive in the therapy of central nerve system (CNS) diseases. In the recent study, we screened a series of mercapto-tacrine derivatives with synergistic neuropharmacological profiles in vitro. METHODS We investigated the effect and mechanism of ST09, a thioester derivative of tacrine containing a potential mercapto group, on the vascular dementia (VaD) model of rat induced by bilateral common carotid arteries occlusion (2-VO). RESULTS ST09 and its active metabolite ST10 retained excellent inhibition on acetylcholinesterase (AChE) activity. ST09 significantly attenuated the 2-VO-induced impairment in spatial acquisition performance and inhibited the 2-VO-induced rise of AChE activity. In the VaD model, ST09 attenuated the oxidative stress and decreased the apoptosis in the cortex and hippocampus. Compared with donepezil, ST09 exhibited a better effect on the regeneration of free thiols in 2-VO rats. Interestingly, ST09, not donepezil, greatly improved glucose metabolism in various brain regions of 2-VO rats using functional imaging of (18) F-labeled fluoro-deoxyglucose (FDG) positron emission tomography (PET). CONCLUSIONS ST09 may serve as a more promising agent for the therapy of VaD than tacrine owing to the introduction of a potential mercapto group into the parent skeleton.
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Affiliation(s)
- Jian-Min Liu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Rao
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zu-Cheng Shen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Luo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Geng Huang
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Liang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China
| | - Qing-Guo Xie
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Feng-Chao Jiang
- Department of Medicinal Chemistry, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,The Collaborative Innovation Center for Brain Science, Wuhan, China
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Zhou J, Luo Y, Zhang JT, Li MX, Wang CM, Guan XL, Wu PF, Hu ZL, Jin Y, Ni L, Wang F, Chen JG. Propranolol decreases retention of fear memory by modulating the stability of surface glutamate receptor GluA1 subunits in the lateral amygdala. Br J Pharmacol 2015; 172:5068-82. [PMID: 26228348 DOI: 10.1111/bph.13272] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 07/21/2015] [Accepted: 07/27/2015] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND AND PURPOSE Posttraumatic stress disorder (PTSD) is a mental disorder with enhanced retention of fear memory and has profound impact on quality of life for millions of people worldwide. The β-adrenoceptor antagonist propranolol has been used in preclinical and clinical studies for the treatment of PTSD, but the mechanisms underlying its potential efficacy on fear memory retention remain to be elucidated. EXPERIMENTAL APPROACH We investigated the action of propranolol on the retention of conditioned fear memory, the surface expression of glutamate receptor GluA1 subunits of AMPA receptors and synaptic adaptation in the lateral amygdala (LA) of rats. KEY RESULTS Propranolol attenuated reactivation-induced strengthening of fear retention while reducing enhanced surface expression of GluA1 subunits and restoring the impaired long-term depression in LA. These effects of propranolol were mediated by antagonizing reactivation-induced enhancement of adrenergic signalling, which activates PKA and calcium/calmodulin-dependent protein kinase II and then regulates the trafficking of AMPA receptors via phosphorylation of GluA1 subunits at the C-terminus. Both i.p. injection and intra-amygdala infusion of propranolol attenuated reactivation-induced enhancement of fear retention. CONCLUSIONS AND IMPLICATIONS Reactivation strengthens fear retention by increasing the level of noradrenaline and promotes the surface expression of GluA1 subunits and the excitatory synaptic transmission in LA. These findings uncover one mechanism underlying the efficiency of propranolol on retention of fear memories and suggest that β-adrenoceptor antagonists, which act centrally, may be more suitable for the treatment of PTSD.
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Affiliation(s)
- Jun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Luo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie-Ting Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming-Xing Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Can-Ming Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin-Lei Guan
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China
| | - You Jin
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lan Ni
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.,The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
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82
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Liu Y, Liu YS, Wu PF, Li Q, Dai WM, Yuan S, Xu ZH, Liu TT, Miao ZW, Fang WG, Chen YH, Li B. Brain microvascular endothelium induced-annexin A1 secretion contributes to small cell lung cancer brain metastasis. Int J Biochem Cell Biol 2015; 66:11-9. [DOI: 10.1016/j.biocel.2015.06.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/11/2015] [Accepted: 06/26/2015] [Indexed: 02/06/2023]
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83
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Zhu G, Wang Y, Mijiti M, Wang Z, Wu PF, Jiafu D. Upregulation of miR-130b enhances stem cell-like phenotype in glioblastoma by inactivating the Hippo signaling pathway. Biochem Biophys Res Commun 2015; 465:194-9. [PMID: 26241672 DOI: 10.1016/j.bbrc.2015.07.149] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 07/29/2015] [Indexed: 01/19/2023]
Abstract
The Hippo signaling pathway plays a crucial role in suppressing tumorigenesis. Physiologically, The Hippo signaling largely restricts its two downstream effectors, homologous oncoproteins Yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), to a low level of activity by the MST1-SAV1 complex-induced kinase cascade. However, how the negative regulation induced by MST1-SAV1 complex is disrupted to exhibit constitutive YAP/TAZ activation in cancer remains unclear. Herein, we reported that miR-130b directly repressed MST1 and SAV1 expression in human glioblastoma cells. Overexpression of miR-130b induced hyperactivation of the YAP/TAZ and enhanced expression of the Hippo signaling downstream genes CTGF and the pluripotency associated markers, including CD133, SOX2, Nanog, MYC and BMI1, leading to promotion of glioblastoma stem cell phenotype. Conversely, inhibition of miR-130b attenuated these effects. These findings provide a novel mechanism for Hippo signaling inactivation in cancer, indicating not only a potentially pivotal role for miR-130b in the progression of glioblastoma, but also may represent a new therapeutic target.
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Affiliation(s)
- Guohua Zhu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830054, China
| | - Yun Wang
- Zhujiang Hospital of South Medical University, Guangzhou, Guangdong, 510280, China
| | - Maimaitili Mijiti
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830054, China
| | - Zengliang Wang
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830054, China
| | - Peng-Fei Wu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830054, China
| | - Dangmuren Jiafu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830054, China.
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84
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Ma J, Long LH, Hu ZL, Zhang H, Han J, Ni L, Wang F, Chen JG, Wu PF. Activation of D1-like receptor-dependent phosphatidylinositol signal pathway by SKF83959 inhibits voltage-gated sodium channels in cultured striatal neurons. Brain Res 2015; 1615:71-79. [PMID: 25912434 DOI: 10.1016/j.brainres.2015.04.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 12/20/2014] [Revised: 04/07/2015] [Accepted: 04/16/2015] [Indexed: 11/15/2022]
Abstract
Dopamine, a key neurotransmitter mediating the rewarding effects, exerts some of its effects by modulating neuronal excitability of striatal medium spiny neurons. A D1-like dopamine receptor-dependent phosphatidylinositol signal pathway exists in the striatum, however little is known about its role in the dopaminergic modulation of striatal neuronal excitability. 3-Methyl-6-chloro-7, 8-hydroxy-1-(3-methylphenyl)-2,3,4,5-tetrahydro-1H-3-benzazepine (SKF83959) is a selective D1 receptor agonist with high-affinity. Here, we observed its effect on the voltage-gated sodium channels (VGSCs) in primary cultured striatal neurons by whole cell patch-clamp technique. We found that SKF83959 induced an inhibition on VGSCs in a dose-dependent manner in striatal neurons (IC50 value: 3.31 ± 0.39 μM), which could be prevented by antagonist of D1 receptor, but not that of D2, α1 adrenergic, or cholinoceptor. The effect of SKF83959 on VGSCs was also prevented by pretreatment with inhibitors of phospholipase C (PLC) and protein kinases C (PKC), but the inositol-1,4,5-phosphate 3 (IP3) antagonist did not occlude SKF83959 (1μM)-induced reduction of VGSCs. These data indicate that SKF83959 inhibits VGSCs in cultured striatal neurons via D1-like receptor-phosphatidylinositol-PKC pathway, which may underlie the dopaminergic modulation on striatal neuronal excitability.
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Affiliation(s)
- Jin Ma
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China; The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China
| | - Hai Zhang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China
| | - Jun Han
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China
| | - Lan Ni
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China; The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China; The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei 430030, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Wuhan City, Hubei 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan City, Hubei 430030, China; The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan 430030, China.
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85
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Fan H, Wu PF, Zhang L, Hu ZL, Wang W, Guan XL, Luo H, Ni M, Yang JW, Li MX, Chen JG, Wang F. Methionine sulfoxide reductase A negatively controls microglia-mediated neuroinflammation via inhibiting ROS/MAPKs/NF-κB signaling pathways through a catalytic antioxidant function. Antioxid Redox Signal 2015; 22:832-47. [PMID: 25602783 PMCID: PMC4367238 DOI: 10.1089/ars.2014.6022] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [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: 12/14/2022]
Abstract
AIMS Oxidative burst is one of the earliest biochemical events in the inflammatory activation of microglia. Here, we investigated the potential role of methionine sulfoxide reductase A (MsrA), a key antioxidant enzyme, in the control of microglia-mediated neuroinflammation. RESULTS MsrA was detected in rat microglia and its expression was upregulated on microglial activation. Silencing of MsrA exacerbated lipopolysaccharide (LPS)-induced activation of microglia and the production of inflammatory markers, indicating that MsrA may function as an endogenous protective mechanism for limiting uncontrolled neuroinflammation. Application of exogenous MsrA by transducing Tat-rMsrA fusion protein into microglia attenuated LPS-induced neuroinflammatory events, which was indicated by an increased Iba1 (a specific microglial marker) expression and the secretion of pro-inflammatory cytokines, and this attenuation was accompanied by inhibiting multiple signaling pathways such as p38 and ERK mitogen-activated protein kinases (MAPKs) and nuclear factor kappaB (NF-κB). These effects were due to MsrA-mediated reactive oxygen species (ROS) elimination, which may be derived from a catalytic effect of MsrA on the reaction of methionine with ROS. Furthermore, the transduction of Tat-rMsrA fusion protein suppressed the activation of microglia and the expression of pro-inflammatory factors in a rat model of neuroinflammation in vivo. INNOVATION This study provides the first direct evidence for the biological significance of MsrA in microglia-mediated neuroinflammation. CONCLUSION Our data provide a profound insight into the role of endogenous antioxidative defense systems such as MsrA in the control of microglial function.
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Affiliation(s)
- Hua Fan
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan City, China
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86
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Wang J, Ma EM, Wu PF, And BQ, Wang YJ. Multiple intracranial and spinal metastases from a nonfunctioning pituitary adenoma following multiple surgeries: an illustrative case with 16 years of follow-up. World J Surg Oncol 2014; 12:380. [PMID: 25494704 PMCID: PMC4295575 DOI: 10.1186/1477-7819-12-380] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 12/03/2014] [Indexed: 11/10/2022] Open
Abstract
Pituitary adenomas are the third most common primary intracranial tumor; however, those with postoperative metastases are very rare and are classically considered as pituitary carcinomas. The field of neurosurgery has struggled with diagnosing and treating these unusual lesions. In this report, we retrospectively analyze the clinical features, imaging findings, pathological characteristics and prognosis of one patient with non-hormone-secreting pituitary adenoma who had multiple intracranial and spinal metastases and underwent four surgeries in a 16-year follow-up period. In addition, on the basis of the existing literature, we explore the underlying mechanisms of, as well as the preventive and therapeutic strategies used to treat, pituitary carcinomas and postoperative metastasis of pituitary tumors.
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Affiliation(s)
| | | | | | | | - Yun-Jie Wang
- Department of Neurosurgery, The First Hospital of China Medical University, No, 155, Nanjing North Street, Heping Ward, Shenyang 110001, China.
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87
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Wu PF, Gu Q. Atractylodes macrocephala for treatment of functional constipation: Underlying mechanisms. Shijie Huaren Xiaohua Zazhi 2014; 22:4934-4937. [DOI: 10.11569/wcjd.v22.i32.4934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Functional constipation is a common and frequently-occurring disease, and Atractylodes macrocephala has its unique advantages in treating functional constipation. This paper review recent progress in the treatment of functional constipation with Atractylodes macrocephala and the underlying mechanism, with an aim to provide a theoretical basis for clinical treatment of functional constipation with Atractylodes macrocephala, and guidance of the mechanism research in the future.
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88
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Wang CM, Yang YJ, Zhang JT, Liu J, Guan XL, Li MX, Lu HF, Wu PF, Chen JG, Wang F. Regulation of emotional memory by hydrogen sulfide: role of GluN2B-containing NMDA receptor in the amygdala. J Neurochem 2014; 132:124-34. [PMID: 25279828 DOI: 10.1111/jnc.12961] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 06/05/2014] [Revised: 09/08/2014] [Accepted: 09/24/2014] [Indexed: 12/21/2022]
Abstract
As an endogenous gaseous molecule, hydrogen sulfide (H2 S) has attracted extensive attention because of its multiple biological effects. However, the effect of H2 S on amygdala-mediated emotional memory has not been elucidated. Here, by employing Pavlovian fear conditioning, an animal model widely used to explore the neural substrates of emotion, we determined whether H2 S could regulate emotional memory. It was shown that the H2 S levels in the amygdala of rats were significantly elevated after cued fear conditioning. Both intraamygdala and systemic administrations of H2 S markedly enhanced amygdala-dependent cued fear memory in rats. Moreover, it was found that H2 S selectively increased the surface expression and currents of NMDA-type glutamate receptor subunit 2B (GluN2B)-containing NMDA receptors (NMDARs) in lateral amygdala of rats, whereas blockade of GluN2B-containing NMDARs in lateral amygdala eliminated the effects of H2 S to enhance amygdalar long-term potentiation and cued fear memory. These results demonstrate that H2 S can regulate amygdala-dependent emotional memory by promoting the function of GluN2B-containing NMDARs in amygdala, suggesting that H2 S-associated signaling may hold potential as a new target for the treatment of emotional disorders. In our study, the effect of hydrogen sulfide (H2 S) on amygdala-mediated emotional memory was investigated. It was found that H2 S could enhance amygdala-dependent emotional memory and long-term potentiation (LTP) in rats by selectively increasing the function of GluN2B-containing NMDA receptors in the amygdala. These results suggest that H2 S-associated signaling may be a new target for the treatment of emotional disorders.
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Affiliation(s)
- Can-Ming Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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89
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Huang YF, Wu PF, Zhang MQ, Ruan WH, Giannelis EP. Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performance. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.151] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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90
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Guan XL, Jiang FC, Wang Y, Wu PF, Wang F, Chen JG. [Pharmacophore identification of novel dual-target compounds targeting AChE and PARP-1]. Yao Xue Xue Bao 2014; 49:819-823. [PMID: 25212026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Multi-target drugs attract increasing attentions for the therapy of complicated neurodegenerative diseases. In this study, a computer-assisted strategy was applied to search for multi-target compounds by the pharmacophore matching. This strategy has been successfully used to design dual-target inhibitor models against both the acetylcholinesterase (AChE) and poly (ADP-ribose) polymerase-1 (PARP-1). Based on two pharmacophore models matching and physicochemical properties filtering, one hit was identified which could inhibit AChE with IC50 value of (0.337 +/- 0.052) micromol x L(-1) and PARP-1 by 24.6% at 1 micromol x L(-1).
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91
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Luo Y, Wu PF, Zhou J, Xiao W, He JG, Guan XL, Zhang JT, Hu ZL, Wang F, Chen JG. Aggravation of seizure-like events by hydrogen sulfide: involvement of multiple targets that control neuronal excitability. CNS Neurosci Ther 2014; 20:411-9. [PMID: 24479764 DOI: 10.1111/cns.12228] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 12/25/2013] [Accepted: 12/27/2013] [Indexed: 01/03/2023] Open
Abstract
AIMS Epileptic seizures are well-known neurological complications following stroke, occurring in 3% of patients. However, the intrinsic correlation of seizures with stroke remains largely unknown. Hydrogen sulfide (H2 S) is a gas transmitter that may mediate cerebral ischemic injury. But the role of H2 S in seizures has not been understood yet. We examined the effect of H2 S on seizure-like events (SLEs) and underlying mechanisms. METHODS AND RESULTS Pentylenetetrazole (PTZ)- and pilocarpine-induced rat epileptic seizure models were tested. Low-Mg(2+) /high-K(+) - and 4-aminopyridine (4-AP)-induced epileptic seizure models were examined using patch-clamp recordings in brain slices. It was found that NaHS aggravated both PTZ- and pilocarpine-induced SLEs in rats, while both low-Mg(2+) /high-K(+) - and 4-AP-induced SLEs were also exacerbated by NaHS in brain slices, which may be due to its regulation on the voltage-gated sodium channel, N-methyl-D-aspartic acid receptor (NMDAR), and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) function. Furthermore, these effects were reversed by blocking voltage-gated sodium channel, NMDAR, and AMPAR. CONCLUSIONS These results suggest a pathological role of increased H2 S level in SLEs in vivo and in vitro. Enzymes that control H2 S biosynthesis could be interesting targets for antiepileptic strategies in poststroke epilepsy treatment.
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Affiliation(s)
- Yi Luo
- Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Wu WN, Wu PF, Zhou J, Guan XL, Zhang Z, Yang YJ, Long LH, Xie N, Chen JG, Wang F. Orexin-A Activates Hypothalamic AMP-Activated Protein Kinase Signaling through a Ca2+-Dependent Mechanism Involving Voltage-Gated L-Type Calcium Channel. Mol Pharmacol 2013; 84:876-87. [DOI: 10.1124/mol.113.086744] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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93
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Niu XH, Hua HY, Guo WJ, Zhang Y, Liu M, Hong Y, Wu PF, Lu P, Zhang HF. [Clinical efficiency of tanshinone IIA-sulfonate in treatment of liver fibrosis of advanced schistosomiasis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2013; 25:137-140. [PMID: 23894832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To evaluate the clinical efficiency of tanshinone IIA-sulfonate (STS) in the treatment of liver fibrosis of advanced schistosomiasis. METHODS A total of 73 advanced schistosomiasis patients were selected into a treatment group and 55 cases of advanced schistosomiasis were selected into a control group, and dipstick dye immunoassay assay (DDIA) for schistosomiasis and HBsAg of all the patients were negative. The patients in the treatment group received STS for 14 days, and all the patients in both groups received the conventional liver-protecting treatment for 14 days. All the patients in both groups received the measurements of portal vein, 4 indicators of liver fibrosis (P III P, C IV, HA, LN), and 3 indicators of serum enzyme activities (ALT, AST, gamma-GT). RESULTS After the treatments, the inside diameters of the portal vein and the degrees of the positive results of indicators of serum enzyme activities of all the patients of both groups decreased, but there were no statistically significant differences compared with those before the treatment. In the treatment group, the degrees of the positive results of indicators of liver fibrosis decreased somewhat, but there were no statistically significant differences compared with those before the treatment except C IV. In the control group, the degrees of the positive results of indicators of liver fibrosis fluctuated. In the treatment group, the indicator of liver fibrosis, CIV improved and the 2 indicators of liver fibrosis, PIIIP and HA improved significantly, but the indicators of serum enzyme activities did not improve. CONCLUSION STS is effective in the treatment of liver fibrosis of advanced schistosomiasis.
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Affiliation(s)
- Xue-Hua Niu
- Third People's Hospital of Kunshan, Kunshan 215316, Jiangsu, China
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94
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Abstract
1. Ischaemic brain injury is a leading cause of death and disability in many countries. However, the pathological mechanisms underlying ischaemic brain injury, including oxidative stress, calcium overload, excitotoxicity and neuronal apoptosis, are perplexing and this makes it difficult to find effective novel drugs for the treatment of the condition. 2. Recently, gaseous molecules such as nitric oxide (NO), carbon monoxide (CO), hydrogen sulphide (H(2)S) and hydrogen (H(2)) have attracted considerable interest because of their physiological and pathophysiological roles in various body systems. Emerging evidence indicates that gaseous molecules are involved in the pathological processes of ischaemic brain damage. 3. In the present review, we summarize evidence regarding the involvement of gaseous molecules in ischaemic brain injury and discuss the therapeutic potential of targeting gaseous molecules. 4. Collectively, the available data suggest that the application of these biological gas molecules and their pharmacological regulators may be a potential therapeutic approach for the treatment of ischaemic brain injury.
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Affiliation(s)
- Jun Zhou
- Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
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95
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Huang LH, Qiu YW, Hua HY, Niu XH, Wu PF, Wu HY, Zhu HY, Yang XJ, Yao SZ, Li YG. The efficacy and safety of entecavir in patients with advanced schistosomiasis co-infected with hepatitis B virus. Int J Infect Dis 2013; 17:e606-9. [PMID: 23490092 DOI: 10.1016/j.ijid.2013.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 01/24/2013] [Accepted: 01/25/2013] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE To evaluate the efficacy and safety of entecavir (ETV) in patients with advanced schistosomiasis and hepatitis B virus (HBV) co-infection. METHODS Sixty-seven patients with advanced schistosomiasis and HBV co-infection were enrolled in this study. The patients were randomly divided into the ETV treatment group (n=35) and the control group (n=32). The patients in the control group adopted routine supportive therapy for 52 weeks, and those in the ETV treatment group received ETV at a dose of 0.5mg once daily on the basis of routine supportive therapy for 52 weeks. Hepatic fibrosis markers (hyaluronic acid, type III procollagen, type IV collagen, laminin, and fibronectin), Ishak fibrosis score, alanine transaminase (ALT), HBV DNA, and Child-Pugh score were compared between the two groups. The intention to treat (ITT) population was used for the analysis. The measurement data and count data were analyzed by t-test and Chi-square test, respectively. RESULTS After 52 weeks of treatment, the hepatic fibrosis markers (hyaluronic acid, type III procollagen, type IV collagen, laminin, and fibronectin) were significantly improved in the ETV treatment group compared to the control group (all p<0.05). A ≥1-point improvement in the Ishak fibrosis score was found in 25.7% (9/35) of the ETV group, and the mean change from the baseline in the Ishak fibrosis score was a 0.3-point reduction. The control group showed disease progression in the Ishak fibrosis score. More patients in the ETV group than in the control group had undetectable serum HBV DNA levels (82.9% vs. 3.1%, p<0.05) and ALT normalization (68.6% vs. 18.3%, p<0.05). The ETV treatment group demonstrated an improvement in Child-Pugh score at week 52 (-3.7 vs. 0.3, p<0.05). In addition, no obvious adverse reactions were observed during ETV treatment. CONCLUSION ETV is safe and effective in patients with advanced schistosomiasis and HBV co-infection.
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Affiliation(s)
- Li-Hua Huang
- Institute of Liver Diseases in Wuxi City, The Fifth People's Hospital of Wuxi, Wuxi, China
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Wu PF, Lu ZP, Cai BB, Tian L, Zou C, Jiang KR, Miao Y. Role of CXCL12/CXCR4 signaling axis in pancreatic cancer. Chin Med J (Engl) 2013; 126:3371-3374. [PMID: 24033967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
OBJECTIVE This review focuses on the state-of-the-art of CXCL12/CXCR4 signaling axis in pancreatic cancer and its role in tumor progression. DATA SOURCES Relevant articles published in English were identified by searching in Pubmed from 1997 to 2013, with keywords "CXCL12", "CXCR4" and "pancreatic cancer". Important references from selected articles were also retrieved. STUDY SELECTION Articles about CXCL12/CXCR4 signaling axis in pancreatic cancer and relevant mechanisms were selected. RESULTS Pancreatic cancer has been one of the most lethal human malignancies, with median survival less than one year and overall 5-year survival only 6%. Tumor cells from pancreatic cancer express high level of CXCR4. CXCL12, the ligand for CXCR4, is extensively secreted by neighboring stromal cells and other distant organs. CXCL12 primarily binds to CXCR4, induces intracellular signaling through several divergent pathways, which are involved in progression and metastasis of pancreatic cancer. CONCLUSIONS CXCL12/CXCR4 signaling axis may play an important role in the communication between pancreatic cancer cells and their microenvironment, which may have effect on tumor proliferation, invasion, angiogenesis, metastasis and chemoresistance. CXCL12/CXCR4 signaling axis may serves as a novel therapeutic target for pancreatic cancer.
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Affiliation(s)
- Peng-Fei Wu
- Department of General Surgery, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
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97
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Wu PF, Xie N, Zhang JJ, Guan XL, Zhou J, Long LH, Li YL, Xiong QJ, Zeng JH, Wang F, Chen JG. Resveratrol preconditioning increases methionine sulfoxide reductases A expression and enhances resistance of human neuroblastoma cells to neurotoxins. J Nutr Biochem 2012; 24:1070-7. [PMID: 23022493 DOI: 10.1016/j.jnutbio.2012.08.005] [Citation(s) in RCA: 18] [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] [Received: 08/17/2011] [Revised: 08/09/2012] [Accepted: 08/13/2012] [Indexed: 01/25/2023]
Abstract
Methionine sulfoxide reductases A (MsrA) has been postulated to act as a catalytic antioxidant system involved in the protection of oxidative stress-induced cell injury. Recently, attention has turned to MsrA in coupling with the pathology of Parkinson's disease, which is closely related to neurotoxins that cause dopaminergic neuron degeneration. Here, we firstly provided evidence that pretreatment with a natural polyphenol resveratrol (RSV) up-regulated the expression of MsrA in human neuroblastoma SH-SY5Y cells. It was also observed that the expression and nuclear translocation of forkhead box group O 3a (FOXO3a), a transcription factor that activates the human MsrA promoter, increased after RSV pretreatment. Nicotinamide , an inhibitor of silent information regulator 1 (SIRT1), prevented RSV-induced elevation of FOXO3a and MsrA expression, indicating that the effect of RSV was mediated by a SIRT1-dependent pathway. RSV preconditioning increased methionine sulfoxide(MetO)-reducing activity in SH-SY5Y cells and enhanced their resistance to neurotoxins, including chloramine-T and 1-methyl-4-phenyl-pyridinium. In addition, the enhancement of cell resistance to neurotoxins caused by RSV preconditioning can be largely prevented by MsrA inhibitor dimethyl sulfoxide. Our findings suggest that treatment with polyphenols such as RSV can be used as a potential regulatory strategy for MsrA expression and function.
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Affiliation(s)
- Peng-Fei Wu
- Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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98
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Wu PF, Long LH, Zeng JH, Guan XL, Zhou J, Jin Y, Ni L, Wang F, Chen JG, Xie N. Protection of l-methionine against H2O2-induced oxidative damage in mitochondria. Food Chem Toxicol 2012; 50:2729-35. [DOI: 10.1016/j.fct.2012.04.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 04/28/2012] [Accepted: 04/30/2012] [Indexed: 12/11/2022]
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99
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Zhang JQ, Wu PF, Long LH, Chen Y, Hu ZL, Ni L, Wang F, Chen JG. Resveratrol promotes cellular glucose utilization in primary cultured cortical neurons via calcium-dependent signaling pathway. J Nutr Biochem 2012; 24:629-37. [PMID: 22819552 DOI: 10.1016/j.jnutbio.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 02/19/2012] [Accepted: 02/28/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND PURPOSE Impairment of glucose utilization contributes to neuronal degeneration of Alzheimer's disease patients. Cellular glucose utilization can be regulated by calcium-dependent signaling pathways. Resveratrol (RSV) is a plant-derived polyphenol with multiple beneficial effects, including neuroprotection and metabolic improvement. Here, we investigated the effect of RSV on neuronal calcium signal and glucose utilization. EXPERIMENTAL METHODS Primary culture of cortical neurons, calcium imaging, 2-NBDG assay and western blotting were employed to investigate RSV-mediated effects on neuronal calcium signal and glucose utilization. RESULTS RSV elevated intracellular calcium in cortical neurons via modulation of secondary messenger system including nitrous oxide, cGMP and cAMP. Secondarily, a calcium-dependent enhancement of neuronal glucose utilization after RSV treatment was observed. The effects on neuronal glucose utilization are largely dependent on RSV-induced calcium-dependent AMP-activated protein kinase activation. CONCLUSION Our findings show that activation of calcium-dependent signaling pathways by RSV may convey improvements of neuronal glucose utilization.
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Affiliation(s)
- Jun-Qi Zhang
- Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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100
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Li B, Wang C, Zhang Y, Zhao XY, Huang B, Wu PF, Li Q, Li H, Liu YS, Cao LY, Dai WM, Fang WG, Shang DS, Cao L, Zhao WD, Chen YH. Elevated PLGF contributes to small-cell lung cancer brain metastasis. Oncogene 2012; 32:2952-62. [DOI: 10.1038/onc.2012.313] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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