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Corbett B, Luz S, Sotuyo N, Pearson-Leary J, Moorthy GS, Zuppa AF, Bhatnagar S. FTY720 (Fingolimod), a modulator of sphingosine-1-phosphate receptors, increases baseline hypothalamic-pituitary adrenal axis activity and alters behaviors relevant to affect and anxiety. Physiol Behav 2021; 240:113556. [PMID: 34390688 DOI: 10.1016/j.physbeh.2021.113556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
FTY720 (fingolimod) is an analog of sphingosine, a ubiquitous sphingolipid. Phosphorylated FTY720 (FTY720-P) non-selectively binds to sphingosine-1-phosphate receptors (S1PRs) and regulates multiple cellular processes including cell proliferation, inflammation, and vascular remodeling. We recently demonstrated that S1PR3 expression in the medial prefrontal cortex (mPFC) of rats promotes stress resilience and that S1PR3 expression in blood may serve as a biomarker for PTSD. Here we investigate the effects of FTY720 in regulating the stress response. We found that single and repeated intraperitoneal injections of FTY720 increased baseline plasma adrenocorticotropic hormone (ACTH) and corticosterone concentrations. FTY720 reduced social anxiety- and despair-like behavior as assessed by increased social interaction time and reduced time spent immobile in the Porsolt forced swim test. In blood, FTY720 administration reduced lymphocyte and reticulocyte counts, but raised erythrocyte counts. FTY720 also reduced mRNA of angiopoietin 1, endothelin 1, plasminogen, TgfB2, Pdgfa, and Mmp2 in the medial prefrontal cortex, suggesting that FTY720 reduced vascular remodeling. The antidepressant-like and anxiolytic-like effects of FTY720 may be attributed to reduced vascular remodeling as increased stress-induced blood vessel density in the brain contributes to behavior associated with vulnerability in rats. Together, these results demonstrate that FTY720 regulates baseline HPA axis activity but reduces social anxiety and despair, providing further evidence that S1PRs are important and novel regulators of stress-related functions.
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Affiliation(s)
- Brian Corbett
- Center for Stress Neurobiology, Children's Hospital of Philadelphia, 3615 CIvic Center Blvd, ARC Suite 402, Philadelphia, Pennsylvania,19104-4399, USA
| | - Sandra Luz
- Center for Stress Neurobiology, Children's Hospital of Philadelphia, 3615 CIvic Center Blvd, ARC Suite 402, Philadelphia, Pennsylvania,19104-4399, USA
| | - Nathaniel Sotuyo
- Center for Stress Neurobiology, Children's Hospital of Philadelphia, 3615 CIvic Center Blvd, ARC Suite 402, Philadelphia, Pennsylvania,19104-4399, USA
| | - Jiah Pearson-Leary
- Center for Stress Neurobiology, Children's Hospital of Philadelphia, 3615 CIvic Center Blvd, ARC Suite 402, Philadelphia, Pennsylvania,19104-4399, USA
| | - Ganesh S Moorthy
- Center for Clinical Pharmacology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA; Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Athena F Zuppa
- Center for Clinical Pharmacology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA; Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Seema Bhatnagar
- Center for Stress Neurobiology, Children's Hospital of Philadelphia, 3615 CIvic Center Blvd, ARC Suite 402, Philadelphia, Pennsylvania,19104-4399, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Wang J, Wang J, Lu P, Cai Y, Wang Y, Hong L, Ren H, Heng BC, Liu H, Zhou J, Ouyang H. Local delivery of FTY720 in PCL membrane improves SCI functional recovery by reducing reactive astrogliosis. Biomaterials 2015; 62:76-87. [PMID: 26036174 DOI: 10.1016/j.biomaterials.2015.04.060] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/24/2015] [Accepted: 04/30/2015] [Indexed: 01/30/2023]
Abstract
FTY720 has recently been approved as an oral drug for treating relapsing forms of multiple sclerosis, and exerts its therapeutic effect by acting as an immunological inhibitor targeting the sphingosine-1-phosphate (S1P) receptor subtype (S1P1) of T cells. Recently studies demonstrated positive efficacy of this drug on spinal cord injury (SCI) in animal models after systemic administration, albeit with significant adverse side effects. We hereby hypothesize that localized delivery of FTY720 can promote SCI recovery by reducing pathological astrogliosis. The mechanistic functions of FTY720 were investigated in vitro and in vivo utilizing immunofluorescence, histology, MRI and behavioral analysis. The in vitro study showed that FTY720 can reduce astrocyte migration and proliferation activated by S1P. FTY720 can prolong internalization of S1P1 and exert antagonistic effects on S1P1. In vivo study of SCI animal models demonstrated that local delivery of FTY720 with polycaprolactone (PCL) membrane significantly decreased S1P1 expression and glial scarring compared with the control group. Furthermore, FTY720-treated groups exhibited less cavitation volume and neuron loss, which significantly improved recovery of motor function. These findings demonstrated that localized delivery of FTY720 can promote SCI recovery by targeting the S1P1 receptor of astrocytes, provide a new therapeutic strategy for SCI treatment.
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Affiliation(s)
- Junjuan Wang
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Jiaqiu Wang
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; The 2nd Affliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ping Lu
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Youzhi Cai
- The 1st Affliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yafei Wang
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Lan Hong
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Hao Ren
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Boon Chin Heng
- Department of Biosystems Science & Engineering (D-BSSE), ETH-Zurich, Basel, Switzerland
| | - Hua Liu
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Jing Zhou
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China.
| | - Hongwei Ouyang
- Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Hangzhou, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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Prolonging survival of corneal transplantation by selective sphingosine-1-phosphate receptor 1 agonist. PLoS One 2014; 9:e105693. [PMID: 25216235 PMCID: PMC4162540 DOI: 10.1371/journal.pone.0105693] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 07/25/2014] [Indexed: 11/19/2022] Open
Abstract
Corneal transplantation is the most used therapy for eye disorders. Although the cornea is somewhat an immune privileged organ, immune rejection is still the major problem that reduces the success rate. Therefore, effective chemical drugs that regulate immunoreactions are needed to improve the outcome of corneal transplantations. Here, a sphingosine-1-phosphate receptor 1 (S1P1) selective agonist was systematically evaluated in mouse allogeneic corneal transplantation and compared with the commonly used immunosuppressive agents. Compared with CsA and the non-selective sphingosine 1-phosphate (S1P) receptor agonist FTY720, the S1P1 selective agonist can prolong the survival corneal transplantation for more than 30 days with a low immune response. More importantly, the optimal dose of the S1P1 selective agonist was much less than non-selective S1P receptor agonist FTY720, which would reduce the dose-dependent toxicity in drug application. Then we analyzed the mechanisms of the selected S1P1 selective agonist on the immunosuppression. The results shown that the S1P1 selective agonist could regulate the distribution of the immune cells with less CD4+ T cells and enhanced Treg cells in the allograft, moreover the expression of anti-inflammatory cytokines TGF-β1 and IL-10 unregulated which can reduce the immunoreactions. These findings suggest that S1P1 selective agonist may be a more appropriate immunosuppressive compound to effectively prolong mouse allogeneic corneal grafts survival.
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Zhu J, Liu Y, Pi Y, Jia L, Wang L, Huang Y. Systemic application of sphingosine 1-phosphate receptor 1 immunomodulator inhibits corneal allograft rejection in mice. Acta Ophthalmol 2014; 92:e12-21. [PMID: 23910624 DOI: 10.1111/aos.12237] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE This study aims to investigate the effects of systemic application of sphingosine 1-phosphate receptor 1(S1P1) on allogeneic corneal transplantation in mice. METHODS A total of 112 BALB/c mice received corneal grafts from C57BL/6 donors. Recipients were randomly divided into seven groups and treated with intraperitoneal injections of S1P1 (5 mg/kg/days), cyclosporine A (5 mg/kg/days), dexamethasone (1 mg/kg/days) and rapamycin (2 mg/kg/days). S1P1was combined with rapamycin or cyclosporine A, and saline served as negative control. Serum levels of IL-2, IL-10, TGF-β1 and IFN-γ were measured by Elisa. The numbers of CD4+ T and regulatory (Treg) cell phenotype were measured by flow cytometry. Cytokine mRNA expression was analysed by real-time quantitative PCR. CD4+ T cells and cytokines were histologically identified by immunofluorescence staining. RESULTS Corneal graft survival was prolonged by intraperitoneal injections in S1P1 alone (mean survival time MST, 35.3 ± 5.6 days), S1P1 combined with rapamycin (MST, 38.7 ± 6.5 days) or S1P1 and cyclosporine A (MST, 32.7 ± 4.8 days) compared with the controls (MST, 14.6 ± 0.2 days; n = 5, p < 0.01). S1P1 alone increased CD4+ T (p < 0.01) and Treg cells (p < 0.01; n = 5) in the cervical and mesenteric lymph nodes compared with the controls and S1P1 + rapamycin (p < 0.05; n = 5). TGF-β1 and IL-10 mRNA transcriptions in corneal grafts following S1P1+ rapamycin increased (both p < 0.01; n = 3), and TGF-β1 and IL-10 in the serum level following S1P1 alone increased (both p < 0.01; n = 3). These results paralleled the findings obtained from immunofluorescence. CONCLUSION S1P1 has significant effect in corneal allograft rejection inhibition. The combined treatment of S1P1 and rapamycin results in synergistic effect.
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Affiliation(s)
- Jing Zhu
- Department of Ophthalmology, the First Affiliated Hospital of the Chinese PLA General Hospital, Beijing 100038, ChinaDepartment of Ophthalmology, Chinese PLA General Hospital, Beijing 100853, ChinaDepartment of Ophthalmology, Chinese PLA Air force General Hospital, Beijing 100038, China
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Cheng Q, Li D, Liang H, Yang H, Lei D, Gao D, Long X, Chen Y, Zhu P, Chen X. Effects of long-term administration of low-dose FTY720 on survival of murine cardiac allograft. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2012; 32:199-204. [PMID: 22528220 DOI: 10.1007/s11596-012-0035-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Indexed: 05/31/2023]
Abstract
This study examined the effect of long-term administration of low-dose FTY720 on survival of murine cardiac allograft and the possible mechanism. Murine models of abdominal heterotopic heart transplantation were established. Low-dose FTY720 (0.3 mg/kg) was administrated to the animals 4 days before the transplantation of cardiac allografts until the occurrence of rejection or the observation terminals. The animals without FTY720 treatment and those with syngeneic cardiac grafts transplanted served as controls. The mean survival time (MST) of grafts, and T lymphocyte subsets in grafts, peripheral blood and lymphoid organs were measured by histopathological examination or flow cytometry, and compared among groups. The results showed that the MST of allografts in FTY720-treated mice was more than 40 days, significantly longer than that in the untreated group (MST=8 days, P<0.01). After the long-term administration of FTY720, the proportion of CD4(+) and CD8(+) lymphocytes in peripheral blood was diminished significantly, but the proportion of CD4(+) lymphocytes was increased in mesenteric lymph nodes (MLNs) and spleen. Immunofluorescence staining revealed that the infiltration of CD4(+) and CD8(+) lymphocytes in allografts was significantly inhibited after long-term administration of low-dose FTY720. It was concluded that low-dose long-term administration of FTY720 could promote T lymphocytes in lymphatic organs and decrease their infiltration in allografts, resulting in the inhibition of rejection and the long-term survival of allografts.
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Affiliation(s)
- Qi Cheng
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan Li
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Surgery, Tianjin Nankai Hospital, Tianjin, 300100, China
| | - Huifang Liang
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hongqiang Yang
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Hepatobiliary Surgery, First Affiliated Hospital, Medical College of Shihezi University, Shihezi, 832008, China
| | - Dou Lei
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan Gao
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xin Long
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yifa Chen
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng Zhu
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Xiaoping Chen
- Hepatic Surgery Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Zeng X, Wang T, Zhu C, Ye Y, Song B, Lai X, Zeng Y. FTY720 mediates activation suppression and G0/G1 cell cycle arrest in a concanavalin A-induced mouse lymphocyte pan-activation model. Inflamm Res 2012; 61:623-34. [DOI: 10.1007/s00011-012-0454-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 12/31/2011] [Accepted: 02/15/2012] [Indexed: 12/18/2022] Open
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