1
|
Stekic A, Stevic D, Dokmanovic T, Anastasov M, Popovic D, Stanojevic J, Jovanovic MZ, Stevanovic I, Nedeljkovic N, Dragic M. Intrinsic ecto-5'-Nucleotidase/A 1R Coupling may Confer Neuroprotection to the Cerebellum in Experimental Autoimmune Encephalomyelitis. Mol Neurobiol 2024:10.1007/s12035-024-04174-9. [PMID: 38619745 DOI: 10.1007/s12035-024-04174-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is widely used animal model of multiple sclerosis (MS). The disease is characterized by demyelination and neurodegeneration triggered by infiltrated autoimmune cells and their interaction with astrocytes and microglia. While neuroinflammation is most common in the spinal cord and brainstem, it is less prevalent in the cerebellum, where it predisposes to rapid disease progression. Because the induction and progression of EAE are tightly regulated by adenosinergic signaling, in the present study we compared the adenosine-producing and -degrading enzymes, ecto-5'-nucleotidase (eN/CD73) and adenosine deaminase (ADA), as well as the expression levels of adenosine receptors A1R and A2AR subtypes in nearby areas around the fourth cerebral ventricle-the pontine tegmentum, the choroid plexus (CP), and the cerebellum. Significant differences in histopathological findings were observed between pontine tegmentum and cerebellum on the same horizontal section level. Reactive astrogliosis and massive infiltration of CD4 + cells and macrophages in CP and pontine tegmentum resulted in local demyelination. In cerebellum, there was no evidence of infiltrates, microgliosis and neuroinflammation at the same sectional level. In addition, Bergman glia showed no signs of reactive gliosis. As for adenosinergic signaling, significant upregulation of eN/CD73 was observed in all areas studied, but in association with different adenosine receptor subtypes. In CP and pons, overexpression of eN/CD73 was coupled with induction of A2AR, whereas in cerebellum, a modest increase in eN/CD73 in resident Bergman glia was accompanied by a strong induction of A1R in the same type of astrocytes. Thus, the presence of specialized astroglia and intrinsic differences in adenosinergic signaling may play a critical role in the differential regional susceptibility to EAE inflammation.
Collapse
Affiliation(s)
- Andjela Stekic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Dejan Stevic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Tamara Dokmanovic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Marina Anastasov
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Danica Popovic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Jelena Stanojevic
- Medical Faculty of Military Medical Academy, University of Defense, 11 000, Belgrade, Serbia
| | | | - Ivana Stevanovic
- Medical Faculty of Military Medical Academy, University of Defense, 11 000, Belgrade, Serbia
| | - Nadezda Nedeljkovic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia.
| | - Milorad Dragic
- Laboratory for Neurobiology, Faculty of Biology, University of Belgrade, Belgrade, Serbia.
| |
Collapse
|
2
|
Zeljkovic Jovanovic M, Stanojevic J, Stevanovic I, Ninkovic M, Nedeljkovic N, Dragic M. Sustained Systemic Antioxidative Effects of Intermittent Theta Burst Stimulation beyond Neurodegeneration: Implications in Therapy in 6-Hydroxydopamine Model of Parkinson's Disease. Antioxidants (Basel) 2024; 13:218. [PMID: 38397816 PMCID: PMC10885904 DOI: 10.3390/antiox13020218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Parkinson's disease (PD) is manifested by the progressive loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) and caudoputamen (Cp), leading to the development of motor and non-motor symptoms. The contribution of oxidative stress to the development and progression of PD is increasingly recognized. Experimental models show that strengthening antioxidant defenses and reducing pro-oxidant status may have beneficial effects on disease progression. In this study, the neuroprotective potential of intermittent theta burst stimulation (iTBS) is investigated in a 6-hydroxydopamine (6-OHDA)-induced PD model in rats seven days after intoxication which corresponds to the occurrence of first motor symptoms. Two-month-old male Wistar rats were unilaterally injected with 6-OHDA to mimic PD pathology and were subsequently divided into two groups to receive either iTBS or sham stimulation for 21 days. The main oxidative parameters were analyzed in the caudoputamen, substantia nigra pars compacta, and serum. iTBS treatment notably mitigated oxidative stress indicators, simultaneously increasing antioxidative parameters in the caudoputamen and substantia nigra pars compacta well after 6-OHDA-induced neurodegeneration process was over. Serum analysis confirmed the systemic effect of iTBS with a decrease in oxidative markers and an increase in antioxidants. Prolonged iTBS exerts a modulatory effect on oxidative/antioxidant parameters in the 6-OHDA-induced PD model, suggesting a potential neuroprotective benefit, even though at this specific time point 6-OHDA-induced oxidative status was unaltered. These results emphasize the need to further explore the mechanisms of iTBS and argue in favor of considering it as a therapeutic intervention in PD and related neurodegenerative diseases.
Collapse
Affiliation(s)
- Milica Zeljkovic Jovanovic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia;
| | - Jelena Stanojevic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (J.S.); (I.S.); (M.N.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Ivana Stevanovic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (J.S.); (I.S.); (M.N.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Milica Ninkovic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (J.S.); (I.S.); (M.N.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Nadezda Nedeljkovic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia;
| | - Milorad Dragic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia;
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia
| |
Collapse
|
3
|
Ferreira SA, Pinto N, Serrenho I, Pato MV, Baltazar G. Contribution of glial cells to the neuroprotective effects triggered by repetitive magnetic stimulation: a systematic review. Neural Regen Res 2024; 19:116-123. [PMID: 37488852 PMCID: PMC10479834 DOI: 10.4103/1673-5374.374140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/27/2023] [Accepted: 03/28/2023] [Indexed: 07/26/2023] Open
Abstract
Repetitive transcranial magnetic stimulation has been increasingly studied in different neurological diseases, and although most studies focus on its effects on neuronal cells, the contribution of non-neuronal cells to the improvement triggered by repetitive transcranial magnetic stimulation in these diseases has been increasingly suggested. To systematically review the effects of repetitive magnetic stimulation on non-neuronal cells two online databases, Web of Science and PubMed were searched for the effects of high-frequency-repetitive transcranial magnetic stimulation, low-frequency-repetitive transcranial magnetic stimulation, intermittent theta-burst stimulation, continuous theta-burst stimulation, or repetitive magnetic stimulation on non-neuronal cells in models of disease and in unlesioned animals or cells. A total of 52 studies were included. The protocol more frequently used was high-frequency-repetitive magnetic stimulation, and in models of disease, most studies report that high-frequency-repetitive magnetic stimulation led to a decrease in astrocyte and microglial reactivity, a decrease in the release of pro-inflammatory cytokines, and an increase of oligodendrocyte proliferation. The trend towards decreased microglial and astrocyte reactivity as well as increased oligodendrocyte proliferation occurred with intermittent theta-burst stimulation and continuous theta-burst stimulation. Few papers analyzed the low-frequency-repetitive transcranial magnetic stimulation protocol, and the parameters evaluated were restricted to the study of astrocyte reactivity and release of pro-inflammatory cytokines, reporting the absence of effects on these parameters. In what concerns the use of magnetic stimulation in unlesioned animals or cells, most articles on all four types of stimulation reported a lack of effects. It is also important to point out that the studies were developed mostly in male rodents, not evaluating possible differential effects of repetitive transcranial magnetic stimulation between sexes. This systematic review supports that through modulation of glial cells repetitive magnetic stimulation contributes to the neuroprotection or repair in various neurological disease models. However, it should be noted that there are still few articles focusing on the impact of repetitive magnetic stimulation on non-neuronal cells and most studies did not perform in-depth analyses of the effects, emphasizing the need for more studies in this field.
Collapse
Affiliation(s)
- Susana A. Ferreira
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal
| | - Nuno Pinto
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal
- Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
- GRUBI-Systematic Reviews Group, University of Beira Interior, Covilhã, Portugal
| | - Inês Serrenho
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal
| | - Maria Vaz Pato
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal
- Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
- GRUBI-Systematic Reviews Group, University of Beira Interior, Covilhã, Portugal
| | - Graça Baltazar
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal
- Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| |
Collapse
|
4
|
Zeljkovic Jovanovic M, Stanojevic J, Stevanovic I, Stekic A, Bolland SJ, Jasnic N, Ninkovic M, Zaric Kontic M, Ilic TV, Rodger J, Nedeljkovic N, Dragic M. Intermittent Theta Burst Stimulation Improves Motor and Behavioral Dysfunction through Modulation of NMDA Receptor Subunit Composition in Experimental Model of Parkinson's Disease. Cells 2023; 12:1525. [PMID: 37296646 PMCID: PMC10252812 DOI: 10.3390/cells12111525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/24/2023] [Accepted: 05/09/2023] [Indexed: 06/12/2023] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder characterized by the progressive degeneration of the dopaminergic system, leading to a variety of motor and nonmotor symptoms. The currently available symptomatic therapy loses efficacy over time, indicating the need for new therapeutic approaches. Repetitive transcranial magnetic stimulation (rTMS) has emerged as one of the potential candidates for PD therapy. Intermittent theta burst stimulation (iTBS), an excitatory protocol of rTMS, has been shown to be beneficial in several animal models of neurodegeneration, including PD. The aim of this study was to investigate the effects of prolonged iTBS on motor performance and behavior and the possible association with changes in the NMDAR subunit composition in the 6-hydroxydopamine (6-OHDA)-induced experimental model of PD. Two-month-old male Wistar rats were divided into four groups: controls, 6-OHDA rats, 6-OHDA + iTBS protocol (two times/day/three weeks) and the sham group. The therapeutic effect of iTBS was evaluated by examining motor coordination, balance, spontaneous forelimb use, exploratory behavior, anxiety-like, depressive/anhedonic-like behavior and short-term memory, histopathological changes and changes at the molecular level. We demonstrated the positive effects of iTBS at both motor and behavioral levels. In addition, the beneficial effects were reflected in reduced degeneration of dopaminergic neurons and a subsequent increase in the level of DA in the caudoputamen. Finally, iTBS altered protein expression and NMDAR subunit composition, suggesting a sustained effect. Applied early in the disease course, the iTBS protocol may be a promising candidate for early-stage PD therapy, affecting motor and nonmotor deficits.
Collapse
Affiliation(s)
- Milica Zeljkovic Jovanovic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
| | - Jelena Stanojevic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia
| | - Ivana Stevanovic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Andjela Stekic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
| | - Samuel J. Bolland
- School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia
- Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia
| | - Nebojsa Jasnic
- Department for Comparative Physiology and Ecophysiology, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
| | - Milica Ninkovic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Marina Zaric Kontic
- Department of Molecular Biology and Endocrinology, Vinca Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Tihomir V. Ilic
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Jennifer Rodger
- School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia
- Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia
| | - Nadezda Nedeljkovic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
| | - Milorad Dragic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
| |
Collapse
|
5
|
Stanojevic JB, Zeljkovic M, Dragic M, Stojanovic IR, Ilic TV, Stevanovic ID, Ninkovic MB. Intermittent theta burst stimulation attenuates oxidative stress and reactive astrogliosis in the streptozotocin-induced model of Alzheimer's disease-like pathology. Front Aging Neurosci 2023; 15:1161678. [PMID: 37273654 PMCID: PMC10233102 DOI: 10.3389/fnagi.2023.1161678] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/10/2023] [Indexed: 06/06/2023] Open
Abstract
Introduction Intracerebroventricularly (icv) injected streptozotocin (STZ) is a widely used model for sporadic Alzheimer's disease (sAD)-like pathology, marked by oxidative stress-mediated pathological progression. Intermittent theta burst stimulation (iTBS) is a noninvasive technique for brain activity stimulation with the ability to induce long-term potentiation-like plasticity and represents a promising treatment for several neurological diseases, including AD. The present study aims to investigate the effect of the iTBS protocol on the animal model of STZ-induced sAD-like pathology in the context of antioxidant, anti-inflammatory, and anti-amyloidogenic effects in the cortex, striatum, hippocampus, and cerebellum. Methods Male Wistar rats were divided into four experimental groups: control (icv normal saline solution), STZ (icv STZ-3 mg/kg), STZ + iTBS (STZ rats subjected to iTBS protocol), and STZ + Placebo (STZ animals subjected to placebo iTBS noise artifact). Biochemical assays and immunofluorescence microscopy were used to evaluate functional and structural changes. Results The icv STZ administration induces oxidative stress and attenuates antioxidative capacity in all examined brain regions. iTBS treatment significantly reduced oxidative and nitrosative stress parameters. Also, iTBS decreased Aβ-1-42 and APP levels. The iTBS enhances antioxidative capacity reported as elevated activity of its enzymatic and non-enzymatic components. In addition, iTBS elevated BDNF expression and attenuated STZ-induced astrogliosis confirmed by decreased GFAP+/VIM+/C3+ cell reactivity in the hippocampus. Discussion Our results provide experimental evidence for the beneficial effects of the applied iTBS protocol in attenuating oxidative stress, increasing antioxidant capacity and decreasing reactive astrogliosis in STZ-administrated rats.
Collapse
Affiliation(s)
- Jelena B. Stanojevic
- Institute for Biochemistry, Faculty of Medicine, University of Niš, Niš, Serbia
- Medical Faculty of Military Medical Academy, University of Defense, Belgrade, Serbia
| | - Milica Zeljkovic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Milorad Dragic
- Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Ivana R. Stojanovic
- Institute for Biochemistry, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Tihomir V. Ilic
- Medical Faculty of Military Medical Academy, University of Defense, Belgrade, Serbia
| | - Ivana D. Stevanovic
- Medical Faculty of Military Medical Academy, University of Defense, Belgrade, Serbia
- Institute of Medical Research, Military Medical Academy, Belgrade, Serbia
| | - Milica B. Ninkovic
- Medical Faculty of Military Medical Academy, University of Defense, Belgrade, Serbia
- Institute of Medical Research, Military Medical Academy, Belgrade, Serbia
| |
Collapse
|
6
|
Scheinok TJ, D'Haeseleer M, Nagels G, De Bundel D, Van Schependom J. Neuronal activity and NIBS in developmental myelination and remyelination - current state of knowledge. Prog Neurobiol 2023; 226:102459. [PMID: 37127087 DOI: 10.1016/j.pneurobio.2023.102459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/06/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
Oligodendrocytes are responsible for myelinating central nervous system (CNS) axons. and rapid electrical transmission through saltatory conduction of action potentials. Myelination and myelin repair rely partially on oligodendrogenesis, which comprises. oligodendrocyte precursor cell (OPC) migration, maturation, and differentiation into. oligodendrocytes (OL). In multiple sclerosis (MS), demyelination occurs due to an. inflammatory cascade with auto-reactive T-cells. When oligodendrogenesis fails, remyelination becomes aberrant and conduction impairments are no longer restored. Although current disease modifying therapies have achieved results in modulating the. faulty immune response, disease progression continues because of chronic. inflammation, neurodegeneration, and failure of remyelination. Therapies have been. tried to promote remyelination. Modulation of neuronal activity seems to be a very. promising strategy in preclinical studies. Additionally, studies in people with MS. (pwMS) have shown symptom improvement following non-invasive brain stimulation. (NIBS) techniques. The aforementioned mechanisms are yet unknown and probably. involve both the activation of neurons and glial cells. Noting neuronal activity. contributes to myelin plasticity and that NIBS modulates neuronal activity; we argue. that NIBS is a promising research horizon for demyelinating diseases. We review the. hypothesized pathways through which NIBS may affect both neuronal activity in the. CNS and how the resulting activity can affect oligodendrogenesis and myelination.
Collapse
Affiliation(s)
- Thomas J Scheinok
- AIMS Lab, Center for Neurosciences, UZ Brussel, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium; Department of Pharmaceutical and Pharmacological Sciences, Research Group Experimental Pharmacology (EFAR), Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium.
| | - Miguel D'Haeseleer
- Nationaal Multiple Sclerose Centrum, Vanheylenstraat 16, 1820 Melsbroek, Belgium
| | - Guy Nagels
- AIMS Lab, Center for Neurosciences, UZ Brussel, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium; St Edmund Hall, University of Oxford, Queen's Lane, Oxford, UK
| | - Dimitri De Bundel
- Department of Pharmaceutical and Pharmacological Sciences, Research Group Experimental Pharmacology (EFAR), Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Jeroen Van Schependom
- AIMS Lab, Center for Neurosciences, UZ Brussel, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium; Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium
| |
Collapse
|
7
|
Zhou X, Li K, Chen S, Zhou W, Li J, Huang Q, Xu T, Gao Z, Wang D, Zhao S, Dong H. Clinical application of transcranial magnetic stimulation in multiple sclerosis. Front Immunol 2022; 13:902658. [PMID: 36131925 PMCID: PMC9483183 DOI: 10.3389/fimmu.2022.902658] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/05/2022] [Indexed: 12/04/2022] Open
Abstract
Multiple sclerosis (MS) is a common chronic, autoimmune-mediated inflammatory and neurodegenerative disease of the central nervous system. The treatment of MS has enormous progress with disease-modifying drugs, but the complexity of the disease course and the clinical symptoms of MS requires personalized treatment and disease management, including non-pharmacological treatment. Transcranial magnetic stimulation (TMS) is a painless and non-invasive brain stimulation technique, which has been widely used in neurological diseases. In this review, we mainly focus on the progress of physiological assessment and treatment of TMS in MS.
Collapse
Affiliation(s)
- Xiaoliang Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Kailin Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Si Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wenbin Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jing Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Jing Li, ; Qing Huang,
| | - Qing Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Jing Li, ; Qing Huang,
| | - Tingting Xu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhiyuan Gao
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Dongyu Wang
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Shuo Zhao
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Hao Dong
- Xiangya School of Medicine, Central South University, Changsha, China
| |
Collapse
|
8
|
Intermittent theta burst stimulation ameliorates cognitive impairment and hippocampal gliosis in the Streptozotocin-induced model of Alzheimer's disease. Behav Brain Res 2022; 433:113984. [PMID: 35780960 DOI: 10.1016/j.bbr.2022.113984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/06/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022]
Abstract
Intracerebroventricularly (icv) injected streptozotocin (STZ) model of Alzheimer's disease (AD) is used to explore the effect of intermittent theta burst stimulation (iTBS) on astrocyte and microglia reactivity in selectively vulnerable brain regions and answer the question whether these changes are in the context of cognitive capacity. The iTBS is a non-invasive approach for stimulating neuronal and glial activity with the ability to induce long-term potentiation-like plasticity and represents a promising treatment for different neurological diseases, including AD. Male Wistar rats were assigned to five groups: 1. Control subjected to icv saline solution, 2. STZ subjected to icv-STZ (bilaterally, 3 mg/kg), 3. STZ+iTBS subjected to iTBS therapy after icv-STZ, 4. STZ+iTBS placebo subjected to noise artifact after icv-STZ and 5. Control+iTBS subjected to iTBS therapy after icv- saline solution. The RotaRod result showed that STZ did not alter motor function in rats. Eight arm radial maze test results showed that iTBS significantly improved cognitive impairment induced by STZ intoxication. Reactive gliosis in the hippocampus and periventricular area, manifested through elevated levels of Iba1+ and GFAP+/VIM+ following icv-STZ, was ameliorated after iTBS treatment. Our research identifies iTBS as an effective therapeutic candidate against STZ-induced neurotoxicity and AD-like changes. The beneficial effects of iTBS on cognitive dysfunction might be due to targeting microglia and astrocytes, as they exert a protective role in neurodegenerative and neuroinflammatory diseases. The results could provoke translation into clinical practice as an early/add-on non-invasive therapeutic intervention for cognitive impairment in AD.
Collapse
|
9
|
Stekic A, Zeljkovic M, Zaric Kontic M, Mihajlovic K, Adzic M, Stevanovic I, Ninkovic M, Grkovic I, Ilic TV, Nedeljkovic N, Dragic M. Intermittent Theta Burst Stimulation Ameliorates Cognitive Deficit and Attenuates Neuroinflammation via PI3K/Akt/mTOR Signaling Pathway in Alzheimer’s-Like Disease Model. Front Aging Neurosci 2022; 14:889983. [PMID: 35656538 PMCID: PMC9152158 DOI: 10.3389/fnagi.2022.889983] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
Neurodegeneration implies progressive neuronal loss and neuroinflammation further contributing to pathology progression. It is a feature of many neurological disorders, most common being Alzheimer’s disease (AD). Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive stimulation which modulates excitability of stimulated brain areas through magnetic pulses. Numerous studies indicated beneficial effect of rTMS in several neurological diseases, including AD, however, exact mechanism are yet to be elucidated. We aimed to evaluate the effect of intermittent theta burst stimulation (iTBS), an rTMS paradigm, on behavioral, neurochemical and molecular level in trimethyltin (TMT)-induced Alzheimer’s-like disease model. TMT acts as a neurotoxic agent targeting hippocampus causing cognitive impairment and neuroinflammation, replicating behavioral and molecular aspects of AD. Male Wistar rats were divided into four experimental groups–controls, rats subjected to a single dose of TMT (8 mg/kg), TMT rats subjected to iTBS two times per day for 15 days and TMT sham group. After 3 weeks, we examined exploratory behavior and memory, histopathological and changes on molecular level. TMT-treated rats exhibited severe and cognitive deficit. iTBS-treated animals showed improved cognition. iTBS reduced TMT-induced inflammation and increased anti-inflammatory molecules. We examined PI3K/Akt/mTOR signaling pathway which is involved in regulation of apoptosis, cell growth and learning and memory. We found significant downregulation of phosphorylated forms of Akt and mTOR in TMT-intoxicated animals, which were reverted following iTBS stimulation. Application of iTBS produces beneficial effects on cognition in of rats with TMT-induced hippocampal neurodegeneration and that effect could be mediated via PI3K/Akt/mTOR signaling pathway, which could candidate this protocol as a potential therapeutic approach in neurodegenerative diseases such as AD.
Collapse
Affiliation(s)
- Andjela Stekic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Milica Zeljkovic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Marina Zaric Kontic
- Department of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Katarina Mihajlovic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Marija Adzic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Ivana Stevanovic
- Medical Faculty of Military Medical Academy, University of Defence, Belgrade, Serbia
- Institute for Medical Research, Military Medical Academy, Belgrade, Serbia
| | - Milica Ninkovic
- Medical Faculty of Military Medical Academy, University of Defence, Belgrade, Serbia
- Institute for Medical Research, Military Medical Academy, Belgrade, Serbia
| | - Ivana Grkovic
- Department of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tihomir V. Ilic
- Medical Faculty of Military Medical Academy, University of Defence, Belgrade, Serbia
| | - Nadezda Nedeljkovic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Milorad Dragic
- Laboratory for Neurobiology, Department of General Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
- *Correspondence: Milorad Dragic,
| |
Collapse
|
10
|
Repetitive transcranial magnetic stimulation (rTMS) for multiple neurological conditions in rodent animal models: A systematic review. Neurochem Int 2022; 157:105356. [DOI: 10.1016/j.neuint.2022.105356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/31/2022] [Accepted: 04/28/2022] [Indexed: 12/09/2022]
|
11
|
Dragić M, Zeljković M, Stevanović I, Adžić M, Stekić A, Mihajlović K, Grković I, Ilić N, Ilić TV, Nedeljković N, Ninković M. Downregulation of CD73/A 2AR-Mediated Adenosine Signaling as a Potential Mechanism of Neuroprotective Effects of Theta-Burst Transcranial Magnetic Stimulation in Acute Experimental Autoimmune Encephalomyelitis. Brain Sci 2021; 11:brainsci11060736. [PMID: 34205965 PMCID: PMC8227256 DOI: 10.3390/brainsci11060736] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/12/2021] [Accepted: 05/17/2021] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic neurodegenerative disease caused by autoimmune-mediated inflammation in the central nervous system. Purinergic signaling is critically involved in MS-associated neuroinflammation and its most widely applied animal model—experimental autoimmune encephalomyelitis (EAE). A promising but poorly understood approach in the treatment of MS is repetitive transcranial magnetic stimulation. In the present study, we aimed to investigate the effect of continuous theta-burst stimulation (CTBS), applied over frontal cranial bone, on the adenosine-mediated signaling system in EAE, particularly on CD73/A2AR/A1R in the context of neuroinflammatory activation of glial cells. EAE was induced in two-month-old female DA rats and in the disease peak treated with CTBS protocol for ten consecutive days. Lumbosacral spinal cord was analyzed immunohistochemically for adenosine-mediated signaling components and pro- and anti-inflammatory factors. We found downregulated IL-1β and NF- κB-ir and upregulated IL-10 pointing towards a reduction in the neuroinflammatory process in EAE animals after CTBS treatment. Furthermore, CTBS attenuated EAE-induced glial eN/CD73 expression and activity, while inducing a shift in A2AR expression from glia to neurons, contrary to EAE, where tight coupling of eN/CD73 and A2AR on glial cells is observed. Finally, increased glial A1R expression following CTBS supports anti-inflammatory adenosine actions and potentially contributes to the overall neuroprotective effect observed in EAE animals after CTBS treatment.
Collapse
Affiliation(s)
- Milorad Dragić
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
- Correspondence:
| | - Milica Zeljković
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
| | - Ivana Stevanović
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (I.S.); (M.N.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia;
| | - Marija Adžić
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
| | - Andjela Stekić
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
| | - Katarina Mihajlović
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
| | - Ivana Grković
- Department of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia;
| | - Nela Ilić
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia;
- Clinic of Physical Medicine and Rehabilitation, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Tihomir V. Ilić
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia;
| | - Nadežda Nedeljković
- Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (M.A.); (A.S.); (K.M.); (N.N.)
| | - Milica Ninković
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (I.S.); (M.N.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia;
| |
Collapse
|