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Origlia S, Schiller S, Pramod MS, Smith L, Singh Y, He W, Viswam S, Świerad D, Hughes J, Bongs K, Sterr U, Lisdat C, Vogt S, Bize S, Lodewyck J, Le Targat R, Holleville D, Venon B, Gill P, Barwood G, Hill IR, Ovchinnikov Y, Kulosa A, Ertmer W, Rasel EM, Stuhler J, Kaenders W. Development of a strontium optical lattice clock for the SOC mission on the ISS. ACTA ACUST UNITED AC 2016. [DOI: 10.1117/12.2229473] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Xie XT, He W, Shi W, Zhou XX, Qiao XH. [Comparison of two types of antithymocyte globulin in the treatment of children with aplastic anemia]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2016; 54:294-8. [PMID: 27055431 DOI: 10.3760/cma.j.issn.0578-1310.2016.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE This study was designed to compare the effects of the anti-human T lymphocyte globulin (Fresenius, ATG-F)and rabbit anti-human thymocyte immunoglobulin (Genzyme, R-ATG)in the treatment of childhood aplastic anemia (AA) and their effects. METHOD A total of 59 children with aplastic anemia were analyzed in the present study, including 34 cases of severe aplastic anemia (SAA), 12 cases of very severe aplastic anemia (VSAA) and 13 cases of transfusion-dependent non-severe aplastic anemia (NSAA). While receiving immunosuppressive therapy (IST), 30 and 29 patients, with long-term oral supplement with cyclosporin A (CSA), androgen and Chinese traditional medicines, were treated with ATG-F and R-ATG, respectively. When it was necessary, some supportive cares such as component transfusion and infection control were also employed. Absolute counts of peripheral blood lymphocyte (ALC) at various time points were dynamically detected after ATG therapy. RESULT According to the International Aplastic Anemia Treatment and Effect standards. There were no statistically significant differences in the overall response rate (67%(20/30)vs. 69%(20/29), χ(2)=0.036, P=0.676) and the survival rate (87%(26/30)vs. 83%(24/29), χ(2)=0.173, P=0.676) between the ATG-F and R-ATG groups. There were significant and long-term ALC decrease after ATG therapy, the rate of ALC decrease in ATG-F and R-ATG group, the ALC only recovered to 47.8% (ATG-F group) and 47.4% (R-ATG group) of the pre-treatment level respectively. CONCLUSION ATG-F 5 mg/(kg·d) and R-ATG 3.75 mg/(kg·d)could achieve similar effects in the treatment of childhood AA, through similar significant clearance of T cells. Therefore, all of these suggest that ATG-F and R-ATG might serve as the drugs of front-line choice for IST in childhood AA patients who do not have an available human leukocyte antigen identical related donor.
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He W, Yin YJ, Wang YY. [The investigation and analysis of an acute poisoning accident cased by solvent pollution]. ZHONGHUA LAO DONG WEI SHENG ZHI YE BING ZA ZHI = ZHONGHUA LAODONG WEISHENG ZHIYEBING ZAZHI = CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES 2016; 34:220-221. [PMID: 27220448 DOI: 10.3760/cma.j.issn.1001-9391.2016.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Gao P, Wang D, Zhao Z, Cai Y, Li T, Shi H, Wu W, He W, Yin L, Huang S, Zhu F, Jiao L, Ji X, Qureshi AI, Ling F. Multicenter Prospective Trial of Stent Placement in Patients with Symptomatic High-Grade Intracranial Stenosis. AJNR Am J Neuroradiol 2016; 37:1275-80. [PMID: 26869472 DOI: 10.3174/ajnr.a4698] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 12/16/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE On the basis of the high 1-month stroke and/or death (14.7%) rates associated with stent placement in the Stenting versus Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis trial, modifications in patient selection and procedural aspects for intracranial stent placement have been recommended. We performed a multicenter prospective single-arm trial to determine whether such modifications would result in lower rates of periprocedural stroke and/or death. MATERIALS AND METHODS The study enrolled patients with recent transient ischemic attack or ischemic stroke (excluding perforator ischemic events) related to high-grade (70%-99% in severity) stenosis of a major intracranial artery. Patients were treated by using angioplasty and self-expanding stents 3 weeks after the index ischemic event at 1 of the 10 high-volume centers in China. An independent neurologist ascertained the occurrence of any stroke and/or death within 1 month after the procedure. RESULTS A total of 100 consecutive patients were recruited. The target lesions were located in the middle cerebral artery (M1) (n = 38, 38%), intracranial internal carotid artery (n = 17, 17%), intradural vertebral artery (n = 18, 18%), and basilar artery (n = 27, 27%). The technical success rate of stent deployment with residual stenosis of <50% was 100%. The overall 1-month stroke and/or death rate was 2% (95% confidence interval, 0.2%-7.0%). Two ischemic strokes occurred in the pontine region (perforator distribution) in patients following angioplasty and stent placement for basilar artery stenosis. CONCLUSIONS The results of this prospective multicenter study demonstrated that modifications in patient selection and procedural aspects can substantially reduce the 1-month stroke and/or death rate following intracranial stent placement.
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Cheng X, Chen B, Qiu J, He W, Lv H, Qu T, Yu Q, Tian Y. Bactericidal effect of Er:YAG laser combined with sodium hypochlorite irrigation against Enterococcus faecalis deep inside dentinal tubules in experimentally infected root canals. J Med Microbiol 2016; 65:176-187. [PMID: 26645354 DOI: 10.1099/jmm.0.000205] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Kang Y, Chang YS, He W, Cai JW, Kang SS. Strong modification of intrinsic spin Hall effect in FeMn with antiferromagnetic order formation. RSC Adv 2016. [DOI: 10.1039/c6ra22256k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
FeMn films with and without a Cu seed layer were deposited on Y3Fe5O12 (YIG) substrates, and their inverse spin Hall effect (ISHE) was examined through both spin Seebeck effect and spin pumping.
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He W, Mao J, Feng T, Wang L, Li Z, Zu W, Liang W, Zhang L. A novel system for forensic SNP analysis through PCR–ligase detection reaction. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2015. [DOI: 10.1016/j.fsigss.2015.09.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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183
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He W, McCarroll CS, Nather K, Elliott EBA, Nicklin SA, Loughrey CM. 1 The cathepsin-L inhibitor CAA0225 protects against myocardial ischaemia-reperfusion injury. Heart 2015. [DOI: 10.1136/heartjnl-2015-308734.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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McCarroll CS, He W, Foote KK, Nather K, Fattah C, Elliott EBA, Cochrane A, Bowman P, Bell M, Kubin T, Braun T, Nicklin SA, Cameron ER, Loughrey CM. 7 Runx1 deficiency protects against adverse cardiac remodelling following myocardial infarction. BRITISH HEART JOURNAL 2015. [DOI: 10.1136/heartjnl-2015-308734.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sivakumaran S, Shanks M, Tsuyuki R, Irwin M, He W, Hassan I, Kimber S, Oudit G, Cujec B, Becher H. PATIENTS WITH MITRAL REGURGITATION ARE NOT MORE LIKELY TO RESPOND TO CARDIAC RESYNCHRONIZATION THERAPY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Liu C, He W, Jin M, Li H, Xu H, Liu H, Yang K, Zhang T, Wu G, Ren J. Blockage of Autophagy in C6 Glioma Cells Enhanced Radiosensitivity Possibly by Attenuating DNA-PK-Dependent DSB Due to Limited Ku Nuclear Translocation and DNA Binding. Curr Mol Med 2015; 15:663-73. [DOI: 10.2174/1566524015666150831141112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 08/19/2015] [Accepted: 08/25/2015] [Indexed: 11/22/2022]
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Liu SL, Qi L, Han WQ, Zhu BS, Zhou X, Jiang SS, Chen MF, Li Y, He W, Liu LF, Hu XH, Xie Y, Zeng FH, Zu XB. Shorter hemodialysis duration is a risk factor for the recurrence of urothelial carcinoma of the bladder in patients on maintenance hemodialysis. Clin Transl Oncol 2015. [PMID: 26220096 DOI: 10.1007/s12094-015-1368-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate the association of hemodialysis duration with the recurrence of urothelial carcinoma (UC) of the bladder and overall survival in patients undergoing maintenance hemodialysis (MHD). PATIENTS AND METHODS 52 bladder cancer patients who underwent MHD at the Xiangya Hospital of The Central South University between 2001 and 2011 were enrolled in the study. The patients were divided into three groups according to hemodialysis duration, and patient mortality and tumor recurrence rates were analyzed. The association of hemodialysis duration with occurrence and recurrence of UC of the bladder was analyzed by Cox regression analysis. Survival was evaluated by the Kaplan-Meier method. RESULTS Out of 6266 chronic hemodialysis patients, 52 patients had UC of the bladder after the initiation of hemodialysis for 6 months. The mean age at hemodialysis onset was 55 years (IQR 36, 71). The major complaints were painless gross hematuria and urethral bloody discharge. Tumors were generally large and multifocal. The standardized incidence ratio of UC of the bladder was 43.9 compared with general population, and it was higher in women (76.7) and in the age group 61-65 years (186.6). The mean hemodialysis duration before the diagnosis of bladder cancer was 32 months. 30 (57.7 %) patients received hemodialysis no more than 3 years, 10 (19.2 %) patients received hemodialysis between 3 and 6 years, and 12 (23.1 %) patients received hemodialysis for more than 6 years. CONCLUSION Preoperative shorter hemodialysis duration is a risk factor for the occurrence and recurrence of UC of the bladder in patients undergoing MHD.
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Ye Z, Yin Z, Zeng H, He W. THU0077 MIR-155 Facilitate the Differentiation of Th17 Cells by Inhibiting the Gene Expression of Ets-1. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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189
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Ye Z, Yin Z, Zeng H, He W. AB0192 High Expression of MIR-16 in PBMC of SLE Patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Chen H, Ji X, Cui L, Zhang J, He W. Characterization of complementary determinant region 3δ in human MutS homologue 2-specific γδ T cells. Scand J Immunol 2015; 81:121-8. [PMID: 25410477 DOI: 10.1111/sji.12256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 10/29/2014] [Indexed: 11/29/2022]
Abstract
γδT cells function as sentinels in early host responses to infections and malignancies. Previously, we found ectopically expressed human MutS homologue 2 (hMSH2), recognized by γδT cells, triggered a γδT cell-mediated cytolysis to tumor cells. However, the characteristics of hMSH2-specific γδ Τ cells are not fully understood. In this study, we investigated the complementary determinant region (CDR) 3δ diversity of hMSH2-specific γδ T cells. We found that the CDR3δ sequences of hMSH2-specific γδ T cells displayed limited diversity, while the length and germline gene usage showed no differences compared with whole CDR3δ immune repertoire. There are more hydrophilic amino acids in P/N insert of hMSH2-specific γδ T cells including the more conserved amino acid at the position 97. Our results offer clues to understanding antigen recognition pattern of γδ T cells to stress-induced hMSH2 of tumor cells and also the mechanism of γδT cell-mediated tumor immune surveillance.
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Anderson K, Chruscinski A, Nguyen A, He W, Ross H, Levy G. Autoantibodies (Non-MHC Antibodies) in a Mouse Model of Chronic Rejection: Profiling By Antigen Microarrays. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Gao Y, Cui J, He W, Yue J, Yu D, Cai L, Xu H, Yang C, Chen ZK, Zhou H. Generation and characterization of polyclonal antibodies against mouse T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory domain by DNA-based immunization. Transplant Proc 2015; 46:260-5. [PMID: 24507063 DOI: 10.1016/j.transproceed.2013.10.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 09/27/2013] [Accepted: 10/02/2013] [Indexed: 10/25/2022]
Abstract
Mouse T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory domain (TIGIT) is a newly identified surface protein expressed in regulatory, memory, natural killer (NK), and activated T cells. Several studies indicate that mouse TIGIT is a vital immunomodulator that can control the activities of both NK and T cells and plays an important role in transplantation tolerance. In this study, we designed a vector, TIGIT-pcDNA3.1 (+), that encodes the complete coding sequence of mouse TIGIT. The vector was intramuscularly injected into rats, and then the specific antisera were harvested and purified using a protein A/G PLUS-agarose affinity column. Western blot and immunohistochemistry analyses revealed that the antibodies generated by DNA immunization can bind with the mouse TIGIT. Using these antibodies in immunoblots, TIGIT was detected in lysates of mouse organs, T cells from mouse lymph nodes, and recombinant mouse fusion protein of TIGIT and Fc fragment. Immunohistochemistry analysis of normal mouse kidney showed that immunoreactivity was located on endothelial cells of glomerular capillary loops and peritubular capillaries. Our results demonstrated that the DNA immunization of rats through intramuscular injection was a simple and easily available method of producing polyclonal antibodies that can be used to detect and analyze mouse TIGIT expression in mouse systems.
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Yu H, Chen P, Zhao Y, Gu X, He W, Gong Z. Effect of sphingosine-1-phosphate and myoblast transplantation on rat acute myocardial infarction. GENETICS AND MOLECULAR RESEARCH 2015; 14:13843-51. [DOI: 10.4238/2015.october.29.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Jiang CM, Liu J, Zhao JY, Xiao L, An S, Gou YC, Quan HX, Cheng Q, Zhang YL, He W, Wang YT, Yu WJ, Huang YF, Yi YT, Chen Y, Wang J. Effects of hypoxia on the immunomodulatory properties of human gingiva-derived mesenchymal stem cells. J Dent Res 2014; 94:69-77. [PMID: 25403565 DOI: 10.1177/0022034514557671] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The environment of bone marrow mesenchymal stem cells (MSCs) is hypoxic, which plays an important role in maintaining their self-renewal potential and undifferentiated state. MSCs have been proven to possess immunomodulatory properties and have been used clinically to treat autoimmune diseases. Here, we tested the effects of hypoxia on the immunomodulatory properties of MSCs and examined its possible underlying mechanisms. We found that hypoxic stimulation promoted the immunomodulatory properties of human gingiva-derived mesenchymal stem cells (hGMSCs) by enhancing the suppressive effects of hGMSCs on peripheral blood mononuclear cells (PBMCs). The proliferation of PBMCs was significantly inhibited, while the apoptosis of PBMCs was increased, which was associated with the Fas ligand (FasL) expression of hGMSCs. The in vivo study showed that systemically infused hGMSCs could enhance skin wound repair, and 24-h hypoxic stimulation significantly promoted the reparative capacity of hGMSCs. For mechanism, hGMSC treatment inhibited the local inflammation of injured skin by suppressing the inflammatory cells, reducing the pro-inflammatory cytokine tumor necrosis factor-α (TNF-α), and increasing anti-inflammatory cytokine interleukin-10 (IL-10), which was promoted by hypoxia. Hypoxia preconditioning may be a good optimizing method to promote the potential of MSCs for the future cell-based therapy.
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Lu JT, He W, Song SS, Wei W. Paeoniflorin inhibited the tumor invasion and metastasis in human hepatocellular carcinoma cells. ACTA ACUST UNITED AC 2014; 115:427-33. [PMID: 25077366 DOI: 10.4149/bll_2014_084] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Evidence suggests that paeoniflorin may be involved in anticancer activities. Here, we have investigated the effects of paeoniflorin and correlative mechanisms on anti-invasion and anti-metastasis in human hepatocellular carcinoma (HCC) cell lines. MATERIALS AND METHODS In the current study, we have applied 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay to determine the proliferative effect of HepG2 and Bel-7402, two human hepatoma cell lines, and we have established a boyden chamber assay, a wound healing assay and cell adhesion assay to detect and quantify the invasion, metastasis and adhesion of both HepG2 and Bel-7402. In addition, we have analyzed the protein expression of matrix metalloproteinas (MMP)-9, E-cadherin (E-cad) and extracellular signal-regulated kinase (ERK) in both cell lines through western blot analysis. RESULTS Paeoniflorin (6. 25-200 µM) had inhibitory effect on the growth of HepG2 and Bel-7402 cell lines, and reduced significantly invasion, metastasis and adhesion of HCC cell lines. In addition, paeoniflorin decreased the expression of MMP-9 and ERK in HepG2 and Bel-7402 cells, and increased expression of E-cad in both cell lines. CONCLUSIONS Paeoniflorin is effective anti-metastatic and anti-invasive agent for suppressing HCC invasion and metastasis (Fig. 5, Ref. 30).
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Fan Y, He W, Sun X. Defining differentiated methylation regions especial for pluripotency acquisition and maintenance in human stem cell via high probe density microarray. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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197
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Jiang C, Li Z, Quan H, Xiao L, Zhao J, Jiang C, Wang Y, Liu J, Gou Y, An S, Huang Y, Yu W, Zhang Y, He W, Yi Y, Chen Y, Wang J. Osteoimmunology in orthodontic tooth movement. Oral Dis 2014; 21:694-704. [PMID: 25040955 DOI: 10.1111/odi.12273] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 06/18/2014] [Accepted: 06/26/2014] [Indexed: 02/05/2023]
Abstract
The skeletal and immune systems share a multitude of regulatory molecules, including cytokines, receptors, signaling molecules, and signaling transducers, thereby mutually influencing each other. In recent years, several novel insights have been attained that have enhanced our current understanding of the detailed mechanisms of osteoimmunology. In orthodontic tooth movement, immune responses mediated by periodontal tissue under mechanical force induce the generation of inflammatory responses with consequent alveolar bone resorption, and many regulators are involved in this process. In this review, we take a closer look at the cellular/molecular mechanisms and signaling involved in osteoimmunology and at relevant research progress in the context of the field of orthodontic tooth movement.
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Hu X, Zhang B, Liu W, Paciga S, He W, Lanz TA, Kleiman R, Dougherty B, Hall SK, McIntosh AM, Lawrie SM, Power A, John SL, Blackwood D, St Clair D, Brandon NJ. A survey of rare coding variants in candidate genes in schizophrenia by deep sequencing. Mol Psychiatry 2014; 19:857-8. [PMID: 24126932 PMCID: PMC4113932 DOI: 10.1038/mp.2013.131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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He W, Zhang Y, Chen H, Zhao C, Wang H. Efficacy and safety of daptomycin for the treatment of infectious disease: a meta-analysis based on randomized controlled trials. J Antimicrob Chemother 2014; 69:3181-9. [DOI: 10.1093/jac/dku277] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cui J, He W, Yi B, Zhao H, Lu K, Ruan H, Ma D. mTOR pathway is involved in ADP-evoked astrocyte activation and ATP release in the spinal dorsal horn in a rat neuropathic pain model. Neuroscience 2014; 275:395-403. [PMID: 24976516 DOI: 10.1016/j.neuroscience.2014.06.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 01/13/2023]
Abstract
BACKGROUND ATP/ADP-evoked spinal astrocyte activation plays a vital role in the development of neuropathic pain. We aim to investigate the role of mammalian target of rapamycin (mTOR) pathway on the spinal astrocyte activation in the neuropathic pain development in rats. METHODS Sprague Dawley (SD) rats were subjected to chronic constriction of the sciatic nerve (CCI). Rapamycin or ADP was intrathecally injected daily to explore their effects on spinal astrocyte activation and pain development. Expression of glial fibrillary acidic protein (GFAP) and mTOR in the spinal dorsal horn was assessed by immunohistochemistry. Von Frey hairs and Hargreaves paw withdrawal test were conducted to evaluate mechanical allodynia and thermal sensitivity, respectively. Firefly luciferase ATP assay was used to assess the change of ATP level in cerebrospinal fluid (CSF) and medium of cultured astrocytes. RESULTS GFAP expression was enhanced in the ipsilateral spinal dorsal horn from day 3 after surgery. GFAP and mTOR expression in the rat spinal dorsal horn on post-surgical day 14 was enhanced by daily intrathecal injection of ADP, which was inhibited by rapamycin. Rapamycin decreased lower mechanical pain threshold and the thermal withdrawal latency. Intrathecal injection of ADP enhanced the ATP release, which was partially inhibited by rapamycin. Study of cultured astrocytes indicated that ATP could be released from astrocytes. CONCLUSION Our data demonstrated that ADP enhanced neuropathic pain in CCI rats, which was inhibited by rapamycin. This study indicates that targeting mTOR pathway could serve as a novel therapeutic strategy in neuropathic pain management.
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