1
|
Rodrigues FDS, Jantsch J, de Farias Fraga G, Dias VS, Pereira Medeiros C, Wickert F, Schroder N, Giovernardi M, Guedes RP. Cannabidiol partially rescues behavioral, neuroinflammatory and endocannabinoid dysfunctions stemming from maternal obesity in the adult offspring. Neuropharmacology 2024; 262:110196. [PMID: 39447736 DOI: 10.1016/j.neuropharm.2024.110196] [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: 05/21/2024] [Revised: 10/15/2024] [Accepted: 10/19/2024] [Indexed: 10/26/2024]
Abstract
Maternal obesity is known to increase the risk of psychiatric disorders, such as anxiety, depression, schizophrenia and autism spectrum disorder in the offspring. While preventive measures are well-documented, practical approaches for addressing the damages once they are already established are limited. We have recently demonstrated the interplay between maternal obesity and treatment with cannabidiol (CBD) on neuroinflammation and peripheral metabolic disturbances during adolescence, however, it is known that both factors tend to vary throughout life. Therefore, here we investigated the potential of CBD to mitigate these alterations in the adult offspring of obese dams. Female Wistar rats were fed a cafeteria diet for 12 weeks prior to mating, and during gestation and lactation. Offspring received CBD (50 mg/kg) for 3 weeks from the 70th day of life. Behavioral tests assessed anxiety-like manifestations and social behavior, while neuroinflammatory and endocannabinoid markers were evaluated in the hypothalamus, prefrontal cortex (PFC) and hippocampus, as well as the biochemical profile in the plasma. CBD treatment attenuated maternal obesity-induced anxiety-like and social behavioral alterations, restoring exacerbated astrocytic and microglial markers in the hypothalamus, PFC and hippocampus of the offspring, as well as endocannabinoid levels in the PFC, with notable sex differences. Additionally, CBD attenuated plasma glucose and lipopolysaccharides (LPS) concentrations in females. These findings underscore the persistent influence of maternal obesity on the offspring's health, encompassing metabolic irregularities and behavioral impairments, as well as the role of the endocannabinoid system in mediating these outcomes across the lifespan.
Collapse
Affiliation(s)
- Fernanda da Silva Rodrigues
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jeferson Jantsch
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gabriel de Farias Fraga
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Victor Silva Dias
- Undergraduate Program in Biomedical Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Camila Pereira Medeiros
- Undergraduate Program in Biomedical Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Wickert
- Undergraduate Program in Biomedical Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil
| | - Nadja Schroder
- Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcia Giovernardi
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil; Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Rio Grande do Sul, Brazil
| | - Renata Padilha Guedes
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170, Porto Alegre, Rio Grande do Sul, Brazil; Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Rio Grande do Sul, Brazil.
| |
Collapse
|
2
|
Singh S, Ellioff KJ, Bruchas MR, Land BB, Stella N. Analgesic Properties of Next-Generation Modulators of Endocannabinoid Signaling: Leveraging Modern Tools for the Development of Novel Therapeutics. J Pharmacol Exp Ther 2024; 391:162-173. [PMID: 39060165 PMCID: PMC11493443 DOI: 10.1124/jpet.124.002119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/28/2024] [Accepted: 06/03/2024] [Indexed: 07/28/2024] Open
Abstract
Targeting the endocannabinoid (eCB) signaling system for pain relief is an important treatment option that is only now beginning to be mechanistically explored. In this review, we focus on two recently appreciated cannabinoid-based targeting strategies, treatments with cannabidiol (CBD) and α/β-hydrolase domain containing 6 (ABHD6) inhibitors, which have the exciting potential to produce pain relief through distinct mechanisms of action and without intoxication. We review evidence on plant-derived cannabinoids for pain, with an emphasis on CBD and its multiple molecular targets expressed in pain pathways. We also discuss the function of eCB signaling in regulating pain responses and the therapeutic promises of inhibitors targeting ABHD6, a 2-arachidonoylglycerol (2-AG)-hydrolyzing enzyme. Finally, we discuss how the novel cannabinoid biosensor GRABeCB2.0 may be leveraged to enable the discovery of targets modulated by cannabinoids at a circuit-specific level. SIGNIFICANCE STATEMENT: Cannabis has been used by humans as an effective medicine for millennia, including for pain management. Recent evidence emphasizes the therapeutic potential of compounds that modulate endocannabinoid signaling. Specifically, cannabidiol and inhibitors of the enzyme ABHD6 represent promising strategies to achieve pain relief by modulating endocannabinoid signaling in pain pathways via distinct, nonintoxicating mechanisms of action.
Collapse
Affiliation(s)
- Simar Singh
- Departments of Pharmacology (S.S., K.J.E., M.R.B., B.B.L., N.S.), Anesthesiology and Pain Medicine (M.R.B.), and Psychiatry and Behavioral Sciences (N.S.), and Center of Excellence in Neuroscience of Addiction, Pain, and Emotion (S.S., K.J.E., M.R.B., B.B.L., N.S.), University of Washington, Seattle, Washington
| | - Kaylin J Ellioff
- Departments of Pharmacology (S.S., K.J.E., M.R.B., B.B.L., N.S.), Anesthesiology and Pain Medicine (M.R.B.), and Psychiatry and Behavioral Sciences (N.S.), and Center of Excellence in Neuroscience of Addiction, Pain, and Emotion (S.S., K.J.E., M.R.B., B.B.L., N.S.), University of Washington, Seattle, Washington
| | - Michael R Bruchas
- Departments of Pharmacology (S.S., K.J.E., M.R.B., B.B.L., N.S.), Anesthesiology and Pain Medicine (M.R.B.), and Psychiatry and Behavioral Sciences (N.S.), and Center of Excellence in Neuroscience of Addiction, Pain, and Emotion (S.S., K.J.E., M.R.B., B.B.L., N.S.), University of Washington, Seattle, Washington
| | - Benjamin B Land
- Departments of Pharmacology (S.S., K.J.E., M.R.B., B.B.L., N.S.), Anesthesiology and Pain Medicine (M.R.B.), and Psychiatry and Behavioral Sciences (N.S.), and Center of Excellence in Neuroscience of Addiction, Pain, and Emotion (S.S., K.J.E., M.R.B., B.B.L., N.S.), University of Washington, Seattle, Washington
| | - Nephi Stella
- Departments of Pharmacology (S.S., K.J.E., M.R.B., B.B.L., N.S.), Anesthesiology and Pain Medicine (M.R.B.), and Psychiatry and Behavioral Sciences (N.S.), and Center of Excellence in Neuroscience of Addiction, Pain, and Emotion (S.S., K.J.E., M.R.B., B.B.L., N.S.), University of Washington, Seattle, Washington
| |
Collapse
|
3
|
Liu X, Zhang J, Liang Y, Chen X, Xu S, Lin S, Dai Y, Chen X, Zhou Y, Bai Y, Chen C. tiRNA-Gly-GCC-002 promotes epithelial-mesenchymal transition and fibrosis in lupus nephritis via FKBP5-mediated activation of Smad. Br J Pharmacol 2024. [PMID: 39419630 DOI: 10.1111/bph.17364] [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: 01/31/2024] [Revised: 07/11/2024] [Accepted: 08/22/2024] [Indexed: 10/19/2024] Open
Abstract
BACKGROUND AND PURPOSE Renal interstitial fibrosis is a frequent pathological manifestation of lupus nephritis (LN). tRNA halves (tiRNAs) are acquired from tRNA-derived small non-coding RNAs (sncRNAs) and are associated with fibrosis. Our previous study indicated enhanced tiRNA-Gly-GCC-002 (tiRNA002) levels in kidneys were positively related to LN-related fibrosis. However, the precise molecular mechanism remains unclear. EXPERIMENTAL APPROACH The mimic and agomiR of tiRNA002 were introduced into tubular epithelial cells (TECs) and MRL/lpr mice by transfection. The levels of gene and protein expressions were quantified using real-time quantitative polymerase chain reaction (RT-qPCR), Western blot and immunofluorescence assays. KEY RESULTS In TECs treated with LN serum, as well as in the kidneys of MRL/lpr mice, high levels of tiRNA002 directly influenced the epithelial-mesenchymal transition (EMT) and extracellular matrix (ECM) deposition. Furthermore, tiRNA002 overexpression promoted EMT in TECs and accelerated renal interstitial fibrosis in MRL/lpr mice via Smad signalling. The target gene of tiRNA002, FKBP prolyl isomerase 5 (FKBP5), improved Smad signalling by interacting with phosphorylated Smad2/3. Silencing FKBP5 alleviated LN serum- or tiRNA002-mimic-induced EMT in TECs. In addition, FKBP5 overexpression reversed the tiRNA002 knockdown-mediated reduction of EMT and ECM accumulation. CONCLUSIONS AND IMPLICATIONS These findings indicated that tiRNA002 is markedly increased in LN, which facilitates renal fibrosis by promoting EMT via FKBP5-mediated Smad signalling. Therefore, targeting tiRNA002 may be an innovative approach to treat renal interstitial fibrosis in LN.
Collapse
Affiliation(s)
- Xueting Liu
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Ji Zhang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Yan Liang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Xuanwen Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Shungang Xu
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Sishi Lin
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Yuanting Dai
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Xinxin Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Ying Zhou
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| | - Yongheng Bai
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
- Zhejiang Key Laboratory of Intelligent Cancer Biomarker Discovery and Translation, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chaosheng Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Chronic Nephropathy, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
4
|
Liu XT, Chen X, Zhao N, Geng F, Zhu MM, Ren QG. Synergism of ApoE4 and systemic infectious burden is mediated by the APOE-NLRP3 axis in Alzheimer's disease. Psychiatry Clin Neurosci 2024; 78:517-526. [PMID: 39011734 DOI: 10.1111/pcn.13704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 04/12/2024] [Accepted: 06/03/2024] [Indexed: 07/17/2024]
Abstract
BACKGROUND Systemic infections are associated with the development of AD, especially in individuals carrying the APOE4 genotype. However, the detailed mechanism through which APOE4 affects microglia inflammatory response remains unclear. METHODS We obtained human snRNA-seq data from the Synapse AD Knowledge Portal and assessed the DEGs between APOE3 and APOE4 isoforms in microglia. To verify the interaction between ApoE and infectious products, we used ApoE to stimulate in vitro and in vivo models in the presence or absence of LPS (or ATP). The NLRP3 gene knockout experiment was performed to demonstrate whether the APOE-NLRP3 axis was indispensable for microglia to regulate inflammation and mitochondrial autophagy. Results were evaluated by biochemical analyses and fluorescence imaging. RESULTS Compared with APOE3, up-regulated genes in APOE4 gene carriers were involved in pro-inflammatory responses. ApoE4-stimulation significantly increased the levels of NLRP3 inflammasomes and ROS in microglia. Moreover, compared with ApoE4 alone, the co-incubation of ApoE4 with LPS (or ATP) markedly promoted pyroptosis. Both NF-κB activation and mitochondrial autophagy dysfunction were contributed by the increased level of NLRP3 inflammasomes induced by ApoE4. Furthermore, the pathological impairment induced by ApoE4 could be reversed by NLRP3 KO. CONCLUSIONS Our study highlights the importance of NLRP3 inflammasomes in linking ApoE4 with microglia innate immune function. These findings not only provide a molecular basis for APOE4-mediated neuroinflammatory but also reveal the potential reason for the increased risk of AD in APOE4 gene carriers after contracting infectious diseases.
Collapse
Affiliation(s)
- Xue-Ting Liu
- School of Medicine, Southeast University, Nanjing, China
| | - Xiu Chen
- School of Medicine, Southeast University, Nanjing, China
| | - Na Zhao
- School of Medicine, Southeast University, Nanjing, China
| | - Fan Geng
- School of Medicine, Southeast University, Nanjing, China
| | - Meng-Meng Zhu
- School of Medicine, Southeast University, Nanjing, China
| | - Qing-Guo Ren
- Department of Neurology, Affiliated ZhongDa Hospital, Southeast University, Nanjing, China
| |
Collapse
|
5
|
Xie G, Gao X, Guo Q, Liang H, Yao L, Li W, Ma B, Wu N, Han X, Li J. Cannabidiol ameliorates PTSD-like symptoms by inhibiting neuroinflammation through its action on CB2 receptors in the brain of male mice. Brain Behav Immun 2024; 119:945-964. [PMID: 38759736 DOI: 10.1016/j.bbi.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 05/05/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024] Open
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating mental health disease related to traumatic experience, and its treatment outcomes are unsatisfactory. Accumulating research has indicated that cannabidiol (CBD) exhibits anti-PTSD effects, however, the underlying mechanism of CBD remains inadequately investigated. Although many studies pertaining to PTSD have primarily focused on aberrations in neuronal functioning, the present study aimed to elucidate the involvement and functionality of microglia/macrophages in PTSD while also investigated the modulatory effects of CBD on neuroinflammation associated with this condition. We constructed a modified single-prolonged stress (SPS) mice PTSD model and verified the PTSD-related behaviors by various behavioral tests (contextual freezing test, elevated plus maze test, tail suspension test and novel object recognition test). We observed a significant upregulation of Iba-1 and alteration of microglial/macrophage morphology within the prefrontal cortex and hippocampus, but not the amygdala, two weeks after the PTSD-related stress, suggesting a persistent neuroinflammatory phenotype in the PTSD-modeled group. CBD (10 mg/kg, i.p.) inhibited all PTSD-related behaviors and reversed the alterations in both microglial/macrophage quantity and morphology when administered prior to behavioral assessments. We further found increased pro-inflammatory factors, decreased PSD95 expression, and impaired synaptic density in the hippocampus of the modeled group, all of which were also restored by CBD treatment. CBD dramatically increased the level of anandamide, one of the endocannabinoids, and cannabinoid type 2 receptors (CB2Rs) transcripts in the hippocampus compared with PTSD-modeled group. Importantly, we discovered the expression of CB2Rs mRNA in Arg-1-positive cells in vivo and found that the behavioral effects of CBD were diminished by CB2Rs antagonist AM630 (1 mg/kg, i.p.) and both the behavioral and molecular effects of CBD were abolished in CB2Rs knockout mice. These findings suggest that CBD would alleviate PTSD-like behaviors in mice by suppressing PTSD-related neuroinflammation and upregulation and activation of CB2Rs may serve as one of the underlying mechanisms for this therapeutic effect. The present study offers innovative experimental evidence supporting the utilization of CBD in PTSD treatment from the perspective of its regulation of neuroinflammation, and paves the way for leveraging the endocannabinoid system to regulate neuroinflammation as a potential therapeutic approach for psychiatric disorders.
Collapse
Affiliation(s)
- Guanbo Xie
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Xinwei Gao
- Chinese Institute for Brain Research, Beijing 102206, China
| | - Qingchun Guo
- Chinese Institute for Brain Research, Beijing 102206, China; School of Biomedical Engineering, Capital Medical University, Beijing 100069, China
| | - Haizhen Liang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lan Yao
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Wenjuan Li
- Chinese Institute for Brain Research, Beijing 102206, China
| | - Baiping Ma
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ning Wu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
| | - Xiao Han
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
| | - Jin Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
| |
Collapse
|
6
|
Rodrigues FDS, Newton WR, Tassinari ID, da Cunha Xavier FH, Marx A, de Fraga LS, Wright K, Guedes RP, Bambini-Jr V. Cannabidiol prevents LPS-induced inflammation by inhibiting the NLRP3 inflammasome and iNOS activity in BV2 microglia cells via CB2 receptors and PPARγ. Neurochem Int 2024; 177:105769. [PMID: 38761855 DOI: 10.1016/j.neuint.2024.105769] [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: 04/05/2024] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Neuroinflammation stands as a critical player in the pathogenesis of diverse neurological disorders, with microglial cells playing a central role in orchestrating the inflammatory landscape within the central nervous system. Cannabidiol (CBD) has gained attention for its potential to elicit anti-inflammatory responses in microglia, offering promising perspectives for conditions associated with neuroinflammation. Here we investigated whether the NLRP3 inflammasome and inducible nitric oxide synthase (iNOS) are involved in the protective effects of CBD, and if their modulation is dependent on cannabinoid receptor 2 (CB2) and PPARγ signalling pathways. We found that treatment with CBD attenuated pro-inflammatory markers in lipopolysaccharide (LPS)-challenged BV2 microglia in a CB2- and PPARγ-dependent manner. At a molecular level, CBD inhibited the LPS-induced pro-inflammatory responses by suppressing iNOS and NLRP3/Caspase-1-dependent signalling cascades, resulting in reduced nitric oxide (NO), interleukin-1β (IL-1β), and tumour necrosis factor-alpha (TNF-α) concentrations. Notably, the protective effects of CBD on NLRP3 expression, Caspase-1 activity, and IL-1β concentration were partially hindered by the antagonism of both CB2 receptors and PPARγ, while iNOS expression and NO secretion were dependent exclusively on PPARγ activation, with no CB2 involvement. Interestingly, CBD exhibited a protective effect against TNF-α increase, regardless of CB2 or PPARγ activation. Altogether, these findings indicate that CB2 receptors and PPARγ mediate the anti-inflammatory effects of CBD on the NLRP3 inflammasome complex, iNOS activity and, ultimately, on microglial phenotype. Our results highlight the specific components responsible for the potential therapeutic applications of CBD on neuroinflammatory conditions.
Collapse
Affiliation(s)
- Fernanda da Silva Rodrigues
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil; Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom.
| | - William Robert Newton
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom; MRC Centre for Medical Mycology, Exeter University, Exeter, United Kingdom.
| | - Isadora D'Ávila Tassinari
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom; Graduate Program in Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | | | - Adél Marx
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom.
| | - Luciano Stürmer de Fraga
- Graduate Program in Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Karen Wright
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom.
| | - Renata Padilha Guedes
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil; Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Victorio Bambini-Jr
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, Lancashire, United Kingdom.
| |
Collapse
|
7
|
Masoumi M, Manavi MA, Mohammad Jafari R, Mirzaei A, Hedayatyanfard K, Beigmohammadi MT, Dehpour AR. Cannabidiol Anticonvulsant Effects Against Lithium-Pilocarpine-Induced Status Epilepticus in Male Rats Are Mediated by Neuroinflammation Modulation and Cannabinoids 1 (CB1), But Not CB2 and GABA A Receptors. Cannabis Cannabinoid Res 2024; 9:797-808. [PMID: 37976207 DOI: 10.1089/can.2023.0067] [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] [Indexed: 11/19/2023] Open
Abstract
Background: Status epilepticus (SE) is a series of seizures that can lead to serious neurological damages. Cannabidiol (CBD) is extracted from the cannabis plant, which has been approved as an antiseizure medication. This study aimed to determine the efficacy of various doses of CBD on lithium-pilocarpine-induced SE in rats and possible involvement of multiple pharmacological pathways. We hypothesized that cannabinoid receptors type 1 (CB1) and CB2, as well as GABAA receptors, might have important roles in the anticonvulsant effects of CBD against SE by its anti-inflammatory effects. Methods: SE was induced by intraperitoneal (i.p.) injection of lithium (127 mg/kg, i.p.) and pilocarpine (60 mg/kg, i.p., 20 h after lithium). Forty-two male rats were divided into seven groups (including control and sham groups), and the treated groups received different doses of CBD (1, 3, 5, 10, and 25 mg/kg, i.p.). SE score was recorded over the next 2 h following pilocarpine injection. Then, we measured the levels of pro-inflammatory cytokines, including interleukin (IL)-lβ and tumor necrosis factor (TNF)-α, using ELISA kits. Also we analyzed the expression of CB1, CB2, and GABAA receptors using the Western blot technique. Results: CBD at 5 mg/kg significantly reduced Racine's scale and duration of seizures, and increased the onset time of seizure. Moreover, CBD 5 mg/kg caused significant reductions in the elevated levels of IL-lβ and TNF-α, as well as a significant increase in the decreased level of CB1 receptor expression compared to the control group. In other word, CBD reverted the effects of SE in terms of neuroinflammation and CB1 receptor. Based on the obtained results, CBD was not able to restore the declined levels of CB2 or GABAA receptors. Conclusion: Our study found anticonvulsant effects of CBD on the SE rat model induced by lithium-pilocarpine with probable involvement of CB1 receptors and anti-inflammatory effects by reducing IL-1β and TNF-α markers independent of CB2 and GABAA receptors.
Collapse
Affiliation(s)
- Mahla Masoumi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Manavi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Razieh Mohammad Jafari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Mirzaei
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Keshvad Hedayatyanfard
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Taghi Beigmohammadi
- Department of Intensive Care, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
8
|
Cui J, Xu L, Sun Y, Dai L, Mo Y, Yun K, Chen Y, Chen L. VSP-2 attenuates secretion of inflammatory cytokines induced by LPS in BV2 cells by mediating the PPARγ /NF-κB signaling pathway. Open Life Sci 2024; 19:20220861. [PMID: 38681727 PMCID: PMC11049741 DOI: 10.1515/biol-2022-0861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 03/03/2024] [Accepted: 03/18/2024] [Indexed: 05/01/2024] Open
Abstract
Neuroinflammation, characterized by microglial activation and the subsequent secretion of inflammatory cytokines, plays a pivotal role in neurodegenerative diseases and brain injuries, often leading to neuronal damage and death. Alleviating neuroinflammation has thus emerged as a promising strategy to protect neurons and ameliorate neurodegenerative disorders. While peroxisome proliferator-activated receptor gamma (PPARγ) agonists have demonstrated potential therapeutic actions on neuroinflammation, their prolonged use, such as with rosiglitazone, can lead to cardiac risks and lipid differentiation disorders. In this study, we investigated the effects of a newly synthesized PPARγ agonist, VSP-2, on secretion of inflammatory cytokines in BV2 cells. Treatment with VSP-2 significantly reduced the mRNA and protein levels of proinflammatory cytokines such as interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α). Furthermore, VSP-2 attenuated the phosphorylation of nuclear factor kappa B (NF-κB) (65 kD) and IκBα, as well as the nuclear translocation of NF-κB (65 kD). Additionally, the use of PPARγ small interfering RNA was able to attenuate the effects of VSP-2 on proinflammatory cytokines and the NF-κB pathway. In conclusion, our findings suggest that VSP-2 effectively suppressed the expressions of IL-1β, IL-6, and TNF-α via the PPARγ/NF-κB signaling pathway. Given its potential therapeutic benefits, VSP-2 may emerge as a promising candidate for the treatment of neurodegenerative diseases or brain injuries associated with neuroinflammation.
Collapse
Affiliation(s)
- Jingxin Cui
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Liwei Xu
- Scientific Experiment Center, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, 541199, Guangxi, China
| | - Yimeng Sun
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Lingfei Dai
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Yuxiu Mo
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Keli Yun
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Yifei Chen
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| | - Linglin Chen
- School of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, Guangxi, 541199, China
| |
Collapse
|
9
|
Cárdenas-Rodríguez N, Ignacio-Mejía I, Correa-Basurto J, Carrasco-Vargas H, Vargas-Hernández MA, Albores-Méndez EM, Mayen-Quinto RD, De La Paz-Valente R, Bandala C. Possible Role of Cannabis in the Management of Neuroinflammation in Patients with Post-COVID Condition. Int J Mol Sci 2024; 25:3805. [PMID: 38612615 PMCID: PMC11012123 DOI: 10.3390/ijms25073805] [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: 02/14/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 04/14/2024] Open
Abstract
The post-COVID condition (PCC) is a pathology stemming from COVID-19, and studying its pathophysiology, diagnosis, and treatment is crucial. Neuroinflammation causes the most common manifestations of this disease including headaches, fatigue, insomnia, depression, anxiety, among others. Currently, there are no specific management proposals; however, given that the inflammatory component involves cytokines and free radicals, these conditions must be treated to reduce the current symptoms and provide neuroprotection to reduce the risk of a long-term neurodegenerative disease. It has been shown that cannabis has compounds with immunomodulatory and antioxidant functions in other pathologies. Therefore, exploring this approach could provide a viable therapeutic option for PCC, which is the purpose of this review. This review involved an exhaustive search in specialized databases including PubMed, PubChem, ProQuest, EBSCO, Scopus, Science Direct, Web of Science, and Clinical Trials. Phytocannabinoids, including cannabidiol (CBD), cannabigerol (CBG), and Delta-9-tetrahydrocannabinol (THC), exhibit significant antioxidative and anti-inflammatory properties and have been shown to be an effective treatment for neuroinflammatory conditions. These compounds could be promising adjuvants for PCC alone or in combination with other antioxidants or therapies. PCC presents significant challenges to neurological health, and neuroinflammation and oxidative stress play central roles in its pathogenesis. Antioxidant therapy and cannabinoid-based approaches represent promising areas of research and treatment for mitigating adverse effects, but further studies are needed.
Collapse
Affiliation(s)
| | - Iván Ignacio-Mejía
- Laboratorio de Medicina Traslacional, Escuela Militar de Graduados de Sanidad, UDEFA, Mexico City 11200, Mexico;
| | - Jose Correa-Basurto
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | | | - Marco Antonio Vargas-Hernández
- Subdirección de Investigación, Escuela Militar de Graduados en Sanidad, UDEFA, Mexico City 11200, Mexico; (M.A.V.-H.); (E.M.A.-M.)
| | - Exal Manuel Albores-Méndez
- Subdirección de Investigación, Escuela Militar de Graduados en Sanidad, UDEFA, Mexico City 11200, Mexico; (M.A.V.-H.); (E.M.A.-M.)
| | | | - Reynita De La Paz-Valente
- Laboratorio de Medicina Traslacional Aplicada a Neurociencias, Enfermedades Crónicas y Emergentes, Escuela superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Cindy Bandala
- Laboratorio de Medicina Traslacional Aplicada a Neurociencias, Enfermedades Crónicas y Emergentes, Escuela superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| |
Collapse
|
10
|
Brenneman DE, Kinney WA, McDonnell ME, Ippolito MJ, Ward SJ. Knockdown siRNA targeting GPR55 reveals significant differences between the anti-inflammatory actions of KLS-13019 and cannabidiol. RESEARCH SQUARE 2024:rs.3.rs-3982851. [PMID: 38464007 PMCID: PMC10925471 DOI: 10.21203/rs.3.rs-3982851/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
KLS-13019 was reported previously to reverse paclitaxel-induced mechanical allodynia in a mouse model of chemotherapy-induced peripheral neuropathy (CIPN). Recent studies demonstrated that paclitaxel-induced increases in inflammatory markers (GPR55, NLRP3 and IL-1b) of dorsal root ganglion (DRG) cultures were shown to be reversed by KLS-13019 treatment. The mechanism of action for KLS-13019-mediated reversal of paclitaxel-induced neuroinflammation now has been explored using GPR55 siRNA. Pretreatment of DRG cultures with GPR55 siRNA produced a 21% decrease of immunoreactive (IR) area for GPR55 in cell bodies and a 59% decrease in neuritic IR area, as determined by high content imaging. Using a 24-hour reversal treatment paradigm, paclitaxel-induced increases in the inflammatory markers were reversed back to control levels after KLS-3019 treatment. Decreases in these inflammatory markers produced by KLS-13019 were significantly attenuated by GPR55 siRNA co-treatment, with mean IR area responses being attenuated by 56% in neurites and 53% in cell bodies. These data indicate that the percentage decreases in siRNA-mediated attenuation of KLS-13019-related efficacy on the inflammatory markers were similar to the percentage knockdown observed for neuritic GPR55 IR area. Similar studies conducted with cannabidiol (CBD), the parent compound of KLS-13019, produced low efficacy (25%) reversal of all inflammatory markers that were poorly attenuated (29%) by GPR55 siRNA. CBD was shown previously to be ineffective in reversing paclitaxel-induced mechanical allodynia. The present studies indicated significant differences between the anti-inflammatory properties of KLS-13019 and CBD which may play a role in their observed differences in the reversibility of mechanical allodynia in a mouse model of CIPN.
Collapse
|
11
|
Liu Y, Wang L, Zhou C, Yuan Y, Fang B, Lu K, Xu F, Chen L, Huang L. MiR-31-5p regulates the neuroinflammatory response via TRAF6 in neuropathic pain. Biol Direct 2024; 19:10. [PMID: 38267979 PMCID: PMC10807213 DOI: 10.1186/s13062-023-00434-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/02/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Neuropathic pain is chronic pain and has few effective control strategies. Studies have demonstrated that microRNAs have functions in neuropathic pain. However, no study has been conducted to demonstrate the role and mechanism of microRNA (miR)-31-5p in neuropathic pain. Accordingly, this study sought to determine the pathological role of miR-31-5p in chronic constriction injury (CCI) -induced neuropathic pain mouse models. METHODS We used CCI surgery to establish mouse neuropathic pain model. Behavioral tests were performed to evaluate pain sensitivity of mice. Expressions of miR-31-5p and inflammatory cytokines in dorsal root ganglion (DRG) were examined by polymerase chain reaction. Animals or cells were received with/without miR-31-5p mimic or inhibitor to investigate its role in neuropathic pain. The mechanism of miR-31-5p was assayed using western blotting, immunofluorescence staining and dual-luciferase reporter assay. RESULTS We found that CCI led to a significant decrease in miR-31-5p levels. Knockout of miR-31-5p and administration of miPEP31 exacerbated pain in C57BL/6 mice. Meanwhile, miR-31-5p overexpression increased the paw withdrawal threshold and latency. TRAF6 is one of the target gene of miR-31-5p, which can trigger a complex inflammatory response. TRAF6 was associated with pain and that reducing the DRG expression of TRAF6 could alleviate pain. In addition, miR-31-5p overexpression inhibited the TRAF6 expression and reduced the neuroinflammatory response. CONCLUSIONS All the results reveal that miR-31-5p could potentially alleviate pain in CCI mouse models by inhibiting the TRAF6 mediated neuroinflammatory response. MiR-31-5p upregulation is highlighted here as new target for CCI treatment.
Collapse
Affiliation(s)
- Yuqi Liu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Lijuan Wang
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Chengcheng Zhou
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Yuan Yuan
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Bin Fang
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Kaimei Lu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China
| | - Fangxia Xu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China.
| | - Lianhua Chen
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China.
| | - Lina Huang
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 20080, China.
| |
Collapse
|
12
|
Sun S, Fan Z, Liu X, Wang L, Ge Z. Microglia TREM1-mediated neuroinflammation contributes to central sensitization via the NF-κB pathway in a chronic migraine model. J Headache Pain 2024; 25:3. [PMID: 38177990 PMCID: PMC10768449 DOI: 10.1186/s10194-023-01707-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Neuroinflammation, mediated by the activation of microglia, contributes to central sensitization, which is associated with the development of chronic migraine (CM). TREM1 receptors amplify the inflammatory response. However, their relationship to CM is unclear. Thus, this study endeavoured to elucidate the exact role of TREM1 in CM. METHODS Nitroglycerin (NTG) was repeatedly administered intraperitoneally to establish the CM model. Mechanical and thermal sensitivities were assessed using von Frey filaments and hot plate assays. Using Western blotting, TREM1, NF-κB pathway, NLRP3 inflammasome components, and proinflammatory cytokines were all detected. Immunofluorescence was used to examine the cellular distribution of TREM1 and NLRP3, the number of microglia, immunoreactivity, and morphological changes. We examined the effects of TREM1 antagonists (LR12) and NF-κB inhibitors (PDTC) on pain behaviour, as well as the production of c-fos and CGRP. Additionally, we investigated whether LR12 and PDTC affect the activation of microglia and the NLRP3 inflammasome. We synthesized siRNA and TREM1-overexpressing plasmids to transfect BV2 cells treated with LPS and normal BV2 cells and treated TREM1-overexpressing BV2 cells with PDTC. The NF-κB pathway, NLRP3 inflammasome components, and proinflammatory cytokines were quantified using Western blotting. RESULTS Following NTG administration, the expression of TREM1 was significantly upregulated and exclusively localized in microglia in the TNC, and was well co-localized with NLRP3. Furthermore, activation of the classical NF-κB pathway was observed. Pre-treatment with LR12 and PDTC effectively attenuated mechanical hypersensitivity, suppressed the expression of c-fos and CGRP, and inhibited NF-κB activity in CM mice. Additionally, inhibition of TREM1 and NF-κB activity mitigated NTG-induced microglia and NLRP3 activation, as well as proinflammatory cytokines production. In vitro, knockdown of TREM1 resulted in attenuated activation of the NF-κB pathway following lipopolysaccharide (LPS) treatment and reduced expression of NLRP3 inflammasome components as well as proinflammatory cytokines. After TREM1 overexpression, the NF-κB pathway was activated, NLRP3 inflammasome components and proinflammatory cytokines were upregulated, and PDTC reversed this phenomenon. CONCLUSIONS Our findings suggest that TREM1 regulates microglia and NLRP3 activation via the NF-κB pathway, thereby contributing to central sensitization and implicating its involvement in chronic migraine pathogenesis.
Collapse
Affiliation(s)
- Songtang Sun
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Zhenzhen Fan
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Xuejiao Liu
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Longde Wang
- Expert Workstation of Academician Wang Longde, Lanzhou University Second Hospital, Lanzhou, 730000, China
| | - Zhaoming Ge
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China.
- Gansu Provincial Neurology Clinical Medical Research Center, Lanzhou University Second Hospital, Lanzhou, 730000, China.
- Expert Workstation of Academician Wang Longde, Lanzhou University Second Hospital, Lanzhou, 730000, China.
| |
Collapse
|
13
|
Benamar K. IUPHAR review- Preclinical models of neuropathic pain: Evaluating multifunctional properties of natural cannabinoid receptors ligands. Pharmacol Res 2024; 199:107013. [PMID: 38008135 DOI: 10.1016/j.phrs.2023.107013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
Neuropathic pain remains prevalent and challenging to manage and is often comorbid with depression and anxiety. The new approach that simultaneously targets neuropathic pain and the associated comorbidities, such as depression and anxiety, is timely and critical, given the high prevalence and severity of neuropathic pain and the lack of effective analgesics. In this review, we focus on the animal models of neuropathic pain that researchers have used to investigate the analgesic effects of cannabidiol (CBD) and Beta-Caryophyllene (BCP) individually and in combination while addressing the impact of these compounds on the major comorbidity (e.g., depression, anxiety) associated with neuropathic pain. We also addressed the potential targets/mechanisms by which CBD and BCP produce analgesic effects in neuropathic pain models. The preclinical studies examined in this review support CBD and BCP individually and combined as potential alternative analgesics for neuropathic pain while showing beneficial effects on depression and anxiety.
Collapse
Affiliation(s)
- Khalid Benamar
- Institute of Neuroscience and Department of Neuro-behavioral Health, University of Texas Rio Grande Valley, School of Medicine, Biomedical building, McAllen, TX 78504, USA.
| |
Collapse
|
14
|
Asadi‐Pooya AA. Cannabidiol for functional seizures (psychogenic nonepileptic seizures/attacks) and other stress-associated disorders. Epilepsia Open 2023; 8:1632-1633. [PMID: 37565519 PMCID: PMC10690686 DOI: 10.1002/epi4.12805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/05/2023] [Indexed: 08/12/2023] Open
Affiliation(s)
- Ali A. Asadi‐Pooya
- Epilepsy Research CenterShiraz University of Medical SciencesShirazIran
- Jefferson Comprehensive Epilepsy Center, Department of NeurologyThomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| |
Collapse
|
15
|
Chen L, Sun Y, Li J, Liu S, Ding H, Wang G, Li X. Assessing Cannabidiol as a Therapeutic Agent for Preventing and Alleviating Alzheimer's Disease Neurodegeneration. Cells 2023; 12:2672. [PMID: 38067101 PMCID: PMC10705747 DOI: 10.3390/cells12232672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/03/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Alzheimer's disease (AD) is a leading neurodegenerative condition causing cognitive and memory decline. With small-molecule drugs targeting Aβ proving ineffective, alternative targets are urgently needed. Neuroinflammation, which is central to AD's pathology, results in synaptic and neuronal damage, highlighting the importance of addressing inflammation and conserving neuronal integrity. Cannabidiol (CBD), derived from cannabis, is noted for its neuroprotective and anti-inflammatory properties, having shown efficacy in neuropathic pain management for epilepsy. To investigate the therapeutic efficacy of CBD in AD and to elucidate its underlying mechanisms, we aimed to contribute valuable insights for incorporating AD prevention recommendations into future CBD nutritional guidelines. Aβ1-42 was employed for in vivo or in vitro model establishment, CBD treatment was utilized to assess the therapeutic efficacy of CBD, and RNA-seq analysis was conducted to elucidate the underlying therapeutic mechanism. CBD mitigates Aβ-induced cognitive deficits by modulating microglial activity, promoting neurotrophic factor release, and regulating inflammatory genes. The administration of CBD demonstrated a protective effect against Aβ toxicity both in vitro and in vivo, along with an amelioration of cognitive impairment in mice. These findings support the potential inclusion of CBD in future nutritional guidelines for Alzheimer's disease prevention.
Collapse
Affiliation(s)
- Long Chen
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Yuan Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Jinran Li
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Sai Liu
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Hancheng Ding
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Guangji Wang
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| | - Xinuo Li
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211166, China
| |
Collapse
|
16
|
Dong X, Hong H, Cui Z. Function of GSK‑3 signaling in spinal cord injury (Review). Exp Ther Med 2023; 26:541. [PMID: 37869638 PMCID: PMC10587879 DOI: 10.3892/etm.2023.12240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 08/10/2023] [Indexed: 10/24/2023] Open
Abstract
Spinal cord injury (SCI) is a major social problem with a heavy burden on patient physiology and psychology. Glial scar formation and irreversible neuron loss are the two key points during SCI progression. During the acute phase of spinal cord injury, glial scars form, limiting the progression of inflammation. However, in the subacute or chronic phase, glial scarring inhibits axon regeneration. Following spinal cord injury, irreversible loss of neurons leads to further aggravation of spinal cord injury. Several therapies have been developed to improve either glial scar or neuron loss; however, few therapies reach the stage of clinical trials and there are no mainstream therapies for SCI. Exploring the key mechanism of SCI is crucial for finding further treatments. Glycogen synthase kinase-3 (GSK-3) is a widely expressed kinase with important physiological and pathophysiological functions in vivo. Dysfunction of the GSK-3 signaling pathway during SCI has been widely discussed for controlling neurite growth in vitro and in vivo, improving the proliferation and neuronal differentiation of endogenous neural stem cells and functional recovery from spinal cord injury. SCI can decrease the phosphorylated (p)/total (t)-GSK-3β ratio, which leads to an increase in apoptosis, whereas treatment with GSK-3 inhibitors can promote neurogenesis. In addition, several therapies for the treatment of SCI involve signaling pathways associated with GSK-3. Furthermore, signaling pathways associated with GSK-3 also participate in the pathological process of neuropathic pain that remains following SCI. The present review summarized the roles of GSK-3 signaling in SCI to aid in the understanding of GSK-3 signaling during the pathological processes of SCI and to provide evidence for the development of comprehensive treatments.
Collapse
Affiliation(s)
- Xiong Dong
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hongxiang Hong
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhiming Cui
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| |
Collapse
|