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Sun W, Wen M, Liu M, Wang Q, Liu Q, Li L, Siebert HC, Loers G, Zhang R, Zhang N. Effect of β-hydroxybutyrate on behavioral alterations, molecular and morphological changes in CNS of multiple sclerosis mouse model. Front Aging Neurosci 2022; 14:1075161. [PMID: 36533180 PMCID: PMC9752847 DOI: 10.3389/fnagi.2022.1075161] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/14/2022] [Indexed: 09/29/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory and degenerative disease of central nervous system (CNS). Aging is the most significant risk factor for the progression of MS. Dietary modulation (such as ketogenic diet) and caloric restriction, can increase ketone bodies, especially β-hydroxybutyrate (BHB). Increased BHB has been reported to prevent or improve age-related disease. The present studies were performed to understand the therapeutic effect and potential mechanisms of exogenous BHB in cuprizone (CPZ)-induced demyelinating model. In this study, a continuous 35 days CPZ mouse model with or without BHB was established. The changes of behavior function, pathological hallmarks of CPZ, and intracellular signal pathways in mice were detected by Open feld test, Morris water maze, RT-PCR, immuno-histochemistry, and western blot. The results showed that BHB treatment improved behavioral performance, prevented myelin loss, decreased the activation of astrocyte as well as microglia, and up-regulated the neurotrophin brain-derived neurotrophic factor in both the corpus callosum and hippocampus. Meanwhile, BHB treatment increased the number of MCT1+ cells and APC+ oligodendrocytes. Furthermore, the treatment decreased the expression of HDAC3, PARP1, AIF and TRPA1 which is related to oligodendrocyte (OL) apoptosis in the corpus callosum, accompanied by increased expression of TrkB. This leads to an increased density of doublecortin (DCX)+ neuronal precursor cells and mature NeuN+ neuronal cells in the hippocampus. As a result, BHB treatment effectively promotes the generation of PDGF-Ra+ (oligodendrocyte precursor cells, OPCs), Sox2+ cells and GFAP+ (astrocytes), and decreased the production of GFAP+ TRAP1+ cells, and Oligo2+ TRAP1+ cells in the corpus callosum of mouse brain. Thus, our results demonstrate that BHB treatment efficiently supports OPC differentiation and decreases the OLs apoptosis in CPZ-intoxicated mice, partly by down-regulating the expression of TRPA1 and PARP, which is associated with the inhibition of the p38-MAPK/JNK/JUN pathway and the activation of ERK1/2, PI3K/AKT/mTOR signaling, supporting BHB treatment adjunctive nutritional therapy for the treatment of chronic demyelinating diseases, such as multiple sclerosis (MS).
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Affiliation(s)
- Wei Sun
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
| | - Min Wen
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
| | - Min Liu
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
| | - Qingpeng Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
| | - Quiqin Liu
- Shandong Donkey Industry, Technology Collaborative Innovation Center, Liaocheng University, Liaocheng, China
| | - Lanjie Li
- Shandong Donkey Industry, Technology Collaborative Innovation Center, Liaocheng University, Liaocheng, China
| | - Hans-Christian Siebert
- Schauenburgerstr, RI-B-NT - Research Institute of Bioinformatics and Nanotechnology, Kiel University, Kiel, Germany
| | - Gabriele Loers
- Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany
| | - Ruiyan Zhang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
| | - Ning Zhang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong, China
- Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
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Li D, Gao R, Qin L, Yue H, Sang N. New Insights into Prenatal NO 2 Exposure and Behavioral Abnormalities in Male Offspring: Disturbed Serotonin Metabolism and Delayed Oligodendrocyte Development. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:11536-11546. [PMID: 35895862 DOI: 10.1021/acs.est.2c03037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Epidemiological studies show that prenatal exposure to nitrogen dioxide (NO2) might cause behavioral abnormalities in childhood. However, toxicological mechanisms for such effects remain unclear, and it is still difficult to define adverse outcome pathways linking exposures to behavioral phenotypes. In this study, by exposing pregnant mice to NO2 (2.5 ppm, 5 h/day) throughout gestation, we provided the first experimental evidence that prenatal NO2 exposure did cause anxiety- and depression-like behaviors in weaning male offspring but not females. Specifically, the behavioral abnormalities were associated with abnormal myelination and the alterations attributed to the delayed oligodendrocyte (OL) development in the fetus and the early stage after birth. The expression of platelet-derived growth factor receptor α (Pdgfr-α) and Olig2 significantly decreased in the NO2 group at E13.5 and E15.5, and the expression of Olig2, adenomatous polyposis coli colon (Cc1), and myelin basic protein (Mbp) was reduced in offspring at PNDs 1, 7, and 21. We performed the targeted metabolomic analysis of neurotransmitters in the placenta and found that prenatal exposure to NO2 disturbed the metabolism of placental neurotransmitters. Serotonin (5-HT) was transferred from the placenta to the fetus at E10.5, and its accumulation in the fetal forebrain might affect oligodendrocyte progenitor cell (OPC) differentiation and OL maturation and eventually be involved in behavioral abnormalities. Our findings provide new insights into the association between prenatal NO2 exposure with anxiety- and depression-like behaviors in male offspring.
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Affiliation(s)
- Dan Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Rui Gao
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Liyao Qin
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Huifeng Yue
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
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Bu Shen Yi Sui Capsules Promote Remyelination by Regulating MicroRNA-219 and MicroRNA-338 in Exosomes to Promote Oligodendrocyte Precursor Cell Differentiation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:3341481. [PMID: 35463062 PMCID: PMC9020954 DOI: 10.1155/2022/3341481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/18/2022] [Accepted: 03/18/2022] [Indexed: 11/18/2022]
Abstract
Remyelination is a refractory feature of demyelinating diseases such as multiple sclerosis (MS). Studies have shown that promoting oligodendrocyte precursor cell (OPC) differentiation, which cannot be achieved by currently available therapeutic agents, is the key to enhancing remyelination. Bu Shen Yi Sui capsule (BSYSC) is a traditional Chinese herbal medicine over many years of clinical practice. We have found that BSYSC can effectively treat MS. In this study, the effects of BSYSC in promoting OPCs differentiation and remyelination were assessed using an experimental autoimmune encephalomyelitis (EAE) model in vivo and cultured OPCs in vitro. The results showed that BSYSC reduced clinical function scores and increased neuroprotection. The expression of platelet-derived growth factor receptor α (PDGFR-α) was decreased and the level of 2′,3′-cyclic nucleotide 3′-phosphodiesterase (CNPase) was increased in the brains and spinal cords of mice as well as in OPCs after treatment with BSYSC. We further found that BSYSC elevated the expression of miR-219 or miR-338 in the serum exosomes of mice with EAE, thereby suppressing the expression of Sox6, Lingo1, and Hes5, which negatively regulate OPCs differentiation. Therefore, serum exosomes of BSYSC-treated mice (exos-BSYSC) were extracted and administered to OPCs in which miR-219 or miR-338 expression was knocked down by adenovirus, and the results showed that Sox6, Lingo1, and Hes5 expression was downregulated, MBP expression was upregulated, OPCs differentiation was increased, and the ability of OPCs to wrap around neuronal axons was improved. In conclusion, BSYSC may exert clinically relevant effects by regulating microRNA (miR) levels in exosomes and thus promoting the differentiation and maturation of OPCs.
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Shen D, Hensley K, Denton TT. An overview of sulfur-containing compounds originating from natural metabolites: Lanthionine ketimine and its analogues. Anal Biochem 2019; 591:113543. [PMID: 31862405 DOI: 10.1016/j.ab.2019.113543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/07/2019] [Accepted: 12/11/2019] [Indexed: 01/18/2023]
Affiliation(s)
- Dunxin Shen
- Department Pharmaceutical Sciences, Washington State University, College of Pharmacy & Pharmaceutical Sciences, 412 East Spokane Falls Blvd, Spokane, WA, 99202-2131, USA
| | - Kenneth Hensley
- Department of Biochemistry, Molecular and Cell Sciences, Arkansas College of Osteopathic Medicine, 7000 Chad Colley Blvd, Fort Smith, AR, 72916, USA
| | - Travis T Denton
- Department Pharmaceutical Sciences, Washington State University, College of Pharmacy & Pharmaceutical Sciences, 412 East Spokane Falls Blvd, Spokane, WA, 99202-2131, USA.
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Moutal A, Kalinin S, Kowal K, Marangoni N, Dupree J, Lin SX, Lis K, Lisi L, Hensley K, Khanna R, Feinstein DL. Neuronal Conditional Knockout of Collapsin Response Mediator Protein 2 Ameliorates Disease Severity in a Mouse Model of Multiple Sclerosis. ASN Neuro 2019; 11:1759091419892090. [PMID: 31795726 PMCID: PMC6893573 DOI: 10.1177/1759091419892090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/23/2019] [Accepted: 11/02/2019] [Indexed: 01/17/2023] Open
Abstract
We previously showed that treatment with lanthionine ketimine ethyl ester (LKE) reduced disease severity and axonal damage in an experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis and increased neuronal maturation and survival in vitro . A major target of LKE is collapsin response mediator protein 2 (CRMP2), suggesting this protein may mediate LKE actions. We now show that conditional knockout of CRMP2 from neurons using a CamK2a promoter to drive Cre recombinase expression reduces disease severity in the myelin oligodendrocyte glycoprotein (MOG)35–55 EAE model, associated with decreased spinal cord axonal damage, and less glial activation in the cerebellum, but not the spinal cord. Immunohistochemical staining and quantitative polymerase chain reaction show CRMP2 depletion from descending motor neurons in the motor cortex, but not from spinal cord neurons, suggesting that the benefits of CRMP2 depletion on EAE may stem from effects on upper motor neurons. In addition, mice in which CRMP2 S522 phosphorylation was prevented by substitution for an alanine residue also showed reduced EAE severity. These results show that modification of CRMP2 expression and phosphorylation can influence the course of EAE and suggests that treatment with CRMP2 modulators such as LKE act in part by reducing CRMP2 S522 phosphorylation.
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Affiliation(s)
| | | | | | | | | | | | - Kinga Lis
- University of Illinois, Chicago, IL, USA
| | - Lucia Lisi
- Universita Cattolica del Sacro Cuore, Rome,
Italy
| | - Kenneth Hensley
- Arkansas College of Osteopathic Medicine, Fort Smith,
AR, USA
| | | | - Douglas L. Feinstein
- University of Illinois, Chicago, IL, USA
- Jesse Brown VA Medical Center, Chicago, IL, USA
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