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Ye X, Yang C, Xu H, He Q, Sheng L, Lin J, Wang X. Exploring the therapeutic mechanisms of Coptidis Rhizoma in gastric precancerous lesions: a network pharmacology approach. Discov Oncol 2024; 15:211. [PMID: 38837097 PMCID: PMC11153449 DOI: 10.1007/s12672-024-01070-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Gastric precancerous lesions are a critical stage in the development of gastric cancer or gastric adenocarcinoma, and their outcome plays an important role in the malignant progression of gastric cancer. Coptidis Rhizoma has a good effect on Gastric precancerous lesions. However, the specific mechanisms of its action remain incompletely elucidated. METHODS Network pharmacology and molecular docking techniques were used to explore the active ingredients and molecular mechanism of Coptidis Rhizoma in treating gastric precancerous lesions. The active compounds of Coptidis Rhizoma and their potential gastric precancerous lesions related targets were obtained from TCMSP, GeneCards, and OMIM databases. An interaction network based on protein-protein interactions (PPIs) was constructed to visualize the interactions between hub genes. Analysis of GO enrichment and KEGG pathway were conducted using the DAVID database. An investigation of interactions between active compounds and potential targets was carried out by molecular docking. Finally, animal experiments were conducted to verify the effect and mechanism of Coptidis Rhizoma in treating precancerous lesions of gastric cancer. RESULTS A total of 11 active compounds and 95 anti-gastric precancerous lesions targets of Coptidis Rhizoma were screened for analysis. GO enrichment analysis showed that the mechanism of Coptidis Rhizoma acting on gastric precancerous lesions involves gene expression regulation and apoptosis regulation. KEGG pathway enrichment analysis showed that Coptidis Rhizoma against gastric precancerous lesions involving the AKT /HIF-1α/VEGF signalling pathway. Molecular docking simulations indicated potential interactions between these compounds and core targets involved in anti-gastric precancerous lesions activity. In addition, it was confirmed in vivo that Berberine and Coptidis Rhizoma may reverse atrophy and potential intestinal metaplasia by inhibiting the expression of p-AKT, HIFA, and VEGF. CONCLUSION Bioactive compounds in Coptidis Rhizoma have the potential to prevent atrophy and intestinal metaplasia. These compounds function by regulating the proteins implicated in AKT /HIF-1α/VEGF signalling pathways that are crucial in gastric epithelial cell differentiation, proliferation and maturation.
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Affiliation(s)
- Xuxing Ye
- Department of Traditional Chinese Medicine, Jinhua Municipal Central Hospital, 351 Mingyue Street, Wucheng District, Jinhua, 321000, Zhejiang, China
| | - Chao Yang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou, 310000, China
| | - Hanzhi Xu
- Zhejiang University School of Medicine, Hangzhou, 310000, China
| | - Qin He
- Department of Traditional Chinese Medicine, Jinhua Municipal Central Hospital, 351 Mingyue Street, Wucheng District, Jinhua, 321000, Zhejiang, China
| | - Lin Sheng
- Department of Pulmonary and Critical Care Medicine, Jinhua Municipal Central Hospital, Jinhua, 321000, Zhejiang, China
| | - Junmei Lin
- Department of Traditional Chinese Medicine, Jinhua Municipal Central Hospital, 351 Mingyue Street, Wucheng District, Jinhua, 321000, Zhejiang, China.
| | - Xiaobo Wang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou, 310000, China.
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Shao J, Nie P, Yang W, Guo R, Ding D, Liang R, Wei B, Wei H. An EPO-loaded multifunctional hydrogel synergizing with adipose-derived stem cells restores neurogenic erectile function via enhancing nerve regeneration and penile rehabilitation. Bioeng Transl Med 2022; 7:e10319. [PMID: 36176612 PMCID: PMC9471998 DOI: 10.1002/btm2.10319] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/23/2022] [Accepted: 03/11/2022] [Indexed: 12/02/2022] Open
Abstract
Neurogenic erectile dysfunction (nED) is one of the most common and intractable postoperative complications of rectal and prostate cancer surgery and sometimes accompanies patients lifelong. The transplantation of stem cells has been proved a promising way for treatment. However, the therapeutic efficacy is severely impaired by excessive cell loss and death and poor accumulation in the injury site along with the traditional implantation strategy. Herein, an EPO-loaded multifunctional hydrogel was designed. The hydrogels' adhesive property and mechanical strength were enhanced by adding catechol-catechol adducts, thus significantly improving adipose-derived stem cells (ADSC) retention and rescuing cell loss in the injury site. Meanwhile, the sustained release of EPO effectively ameliorated the viability and paracrine activity of ADSC, leading to enhanced migration of Schwann cells and differentiation of PC12 cells in vivo. On a bilateral cavernous nerve injury rat model, the present stem cell-EPO-hydrogel implanted strategy could significantly alleviate erectile dysfunction. The higher expression of Tuj1 and lower expression of GFAP in the major pelvic ganglia (MPG) indicated the acceleration of neural differentiation while the suppressing development of astrocytes. Also, the combined therapy restored the expression levels of eNOs, nNOs, and α-SMA in penile tissues, suggesting the rehabilitation of the penis. Further analysis of Masson trichrome staining and apoptosis evaluation of the corpus cavernosum showed the preservation of vascular endothelium content and the prevention of penile fibrosis after denervation. Overall, we believe that this combined strategy presents a promising way not only for restoring neurogenic erectile function but also for the clinical translation of stem cell therapy.
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Affiliation(s)
- Jun Shao
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Pan Nie
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Wende Yang
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical EngineeringJinan UniversityGuangzhouChina
| | - Dongbing Ding
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Rongpu Liang
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Bo Wei
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Hongbo Wei
- Department of Gastrointestinal SurgeryThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
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Wang CY, Wang J, Cao J, Xu J, Wu RM, Xu XL. Activating PGC-1α-mediated signaling cascades in the aorta contributes to the amelioration of vascular senescence and atherosclerosis by 2,3,4',5-tetrahydroxystilbene-2-O-β-d-glycoside. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:154017. [PMID: 35276590 DOI: 10.1016/j.phymed.2022.154017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/12/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND 2,3,4',5-tetrahydroxystilbene-2-O-β-d-glycoside (TSG), the main active polyphenolic component of Polygonum multiflorum, possesses many pharmacological activities. Its anti-aging effect influences a variety of tissues with diverse mechanisms. However, the effectiveness and exact mechanisms of TSG against vascular senescence in atherosclerosis remain unclear. The present study is aimed to investigate the effects of TSG against vascular senescence in atherosclerosis both in vivo and in vitro, and the possible underlying mechanisms focusing on aortic peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α)-mediated signaling cascades which have never been studied. METHODS In vivo, 12-mo-old male LDLr-/- mice were randomly separated into control, high-fat diet (HFD), and TSG -treatment groups. At the end of the 12 weeks, the blood samples and aorta tissues of mice were collected for further analysis. In vitro, to mimic the condition of endothelial senescence in hyperlipidemic mice, human aortic endothelial cells (HAECs) were incubated with oxidized low-density lipoprotein (ox-LDL) to induce senescence. RESULTS TSG administration improved lipid profiles, ameliorated HFD-exacerbated vascular senescence and atherosclerosis. The protective effect of TSG via inhibiting telomere malfunction, oxidative stress, and mitochondrial damage was found both in vivo and in vitro. Notably, TSG administration increased aortic PGC-1α mRNA and protein expression along with the regulation of its targeted genes TERT, NRF1, TFAM, Mn-SOD, and catalase. Further, by using PGC-1α siRNA in ox-LDL-treated HAECs, it is proved that TSG reduced endothelial senescence, telomere malfunction, oxidative stress, and mitochondrial damage at least partly through activating the PGC-1α pathway. CONCLUSIONS These results provide new evidence for TSG in the treatment of atherosclerosis and the activation of aortic PGC-1α is involved in its beneficial effects.
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Affiliation(s)
- Chun Yan Wang
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China
| | - Jie Wang
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China
| | - Ji Cao
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China
| | - Jin Xu
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China
| | - Ruo Man Wu
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China
| | - Xiao Le Xu
- Department of Pharmacology, Division of Medicine, Nantong University Pharmacy College, 19 Qi Xiu Road, Nantong 226001, China.
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Lin F, Han J, Xue T, Lin J, Chen S, Zhu C, Lin H, Chen X, Lin W, Huang H. Predicting cognitive impairment in outpatients with epilepsy using machine learning techniques. Sci Rep 2021; 11:20002. [PMID: 34625614 PMCID: PMC8501137 DOI: 10.1038/s41598-021-99506-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/27/2021] [Indexed: 12/04/2022] Open
Abstract
Many studies report predictions for cognitive function but there are few predictions in epileptic patients; therefore, we established a workflow to efficiently predict outcomes of both the Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) in outpatients with epilepsy. Data from 441 outpatients with epilepsy were included; of these, 433 patients met the 12 clinical characteristic criteria and were divided into training (n = 304) and experimental (n = 129) groups. After descriptive statistics were analyzed, cross-validation was used to select the optimal model. The random forest (RF) algorithm was combined with the redundancy analysis (RDA) algorithm; then, optimal feature selection and resampling were carried out after removing linear redundancy information. The features that contributed more to multiple outcomes were selected. Finally, the external traceability of the model was evaluated using the follow-up data. The RF algorithm was the best prediction model for both MMSE and MoCA outcomes. Finally, seven markers were screened by overlapping the top ten important features for MMSE ranked by RF modeling, those ranked for MoCA ranked by RF modeling, and those for both assessments ranked by RDA. The optimal combination of features were namely, sex, age, age of onset, seizure frequency, brain MRI abnormalities, epileptiform discharge in EEG and usage of drugs. which was the most efficient in predicting outcomes of MMSE, MoCA, and both assessments.
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Affiliation(s)
- Feng Lin
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China
| | - Jiarui Han
- BaoFeng Key Laboratory of Genetics and Metabolism, Beijing, People's Republic of China
| | - Teng Xue
- Zhongguancun Biological and Medical Big Data Center, Beijing, People's Republic of China
| | - Jilan Lin
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China
| | - Shenggen Chen
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China
| | - Chaofeng Zhu
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China
| | - Han Lin
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China
| | - Xianyang Chen
- BaoFeng Key Laboratory of Genetics and Metabolism, Beijing, People's Republic of China
| | - Wanhui Lin
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China.
| | - Huapin Huang
- Department of Neurology, Fujian Medical University Union Hospital, Fujian, People's Republic of China.
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Samaiya PK, Krishnamurthy S, Kumar A. Mitochondrial dysfunction in perinatal asphyxia: role in pathogenesis and potential therapeutic interventions. Mol Cell Biochem 2021; 476:4421-4434. [PMID: 34472002 DOI: 10.1007/s11010-021-04253-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 08/20/2021] [Indexed: 01/13/2023]
Abstract
Perinatal asphyxia (PA)-induced brain injury may present as hypoxic-ischemic encephalopathy in the neonatal period, and long-term sequelae such as spastic motor deficits, intellectual disability, seizure disorders and learning disabilities. The brain injury is secondary to both the hypoxic-ischemic event and oxygenation-reperfusion following resuscitation. Following PA, a time-dependent progression of neuronal insult takes place in terms of transition of cell death from necrosis to apoptosis. This transition is the result of time-dependent progression of pathomechanisms which involve excitotoxicity, oxidative stress, and ultimately mitochondrial dysfunction in developing brain. More precisely mitochondrial respiration is suppressed and calcium signalling is dysregulated. Consequently, Bax-dependent mitochondrial permeabilization occurs leading to release of cytochrome c and activation of caspases leading to transition of cell death in developing brain. The therapeutic window lies within this transition process. At present, therapeutic hypothermia (TH) is the only clinical treatment available for treating moderate as well as severe asphyxia in new-born as it attenuates secondary loss of high-energy phosphates (ATP) (Solevåg et al. in Free Radic Biol Med 142:113-122, 2019; Gunn et al. in Pediatr Res 81:202-209, 2017), improving both short- and long-term outcomes. Mitoprotective therapies can offer a new avenue of intervention alone or in combination with therapeutic hypothermia for babies with birth asphyxia. This review will explore these mitochondrial pathways, and finally will summarize past and current efforts in targeting these pathways after PA, as a means of identifying new avenues of therapeutic intervention.
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Affiliation(s)
- Puneet K Samaiya
- Department of Pharmacy, Shri G.S. Institute of Technology and Science, Indore, MP, 452003, India.
| | - Sairam Krishnamurthy
- Neurotherapeutics Lab, Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ashok Kumar
- Department of Pediatrics, Institute of Medical Sciences, BHU, Varanasi, UP, India
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Jacobs RA, Aboouf MA, Koester-Hegmann C, Muttathukunnel P, Laouafa S, Arias-Reyes C, Thiersch M, Soliz J, Gassmann M, Schneider Gasser EM. Erythropoietin promotes hippocampal mitochondrial function and enhances cognition in mice. Commun Biol 2021; 4:938. [PMID: 34354241 PMCID: PMC8342552 DOI: 10.1038/s42003-021-02465-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 07/19/2021] [Indexed: 11/22/2022] Open
Abstract
Erythropoietin (EPO) improves neuronal mitochondrial function and cognition in adults after brain injury and in those afflicted by psychiatric disorders. However, the influence of EPO on mitochondria and cognition during development remains unexplored. We previously observed that EPO stimulates hippocampal-specific neuronal maturation and synaptogenesis early in postnatal development in mice. Here we show that EPO promotes mitochondrial respiration in developing postnatal hippocampus by increasing mitochondrial content and enhancing cellular respiratory potential. Ultrastructurally, mitochondria profiles and total vesicle content were greater in presynaptic axon terminals, suggesting that EPO enhances oxidative metabolism and synaptic transmission capabilities. Behavioural tests of hippocampus-dependent memory at early adulthood, showed that EPO improves spatial and short-term memory. Collectively, we identify a role for EPO in the murine postnatal hippocampus by promoting mitochondrial function throughout early postnatal development, which corresponds to enhanced cognition by early adulthood. Robert Jacobs, Mostafa Aboouf, et al. examined the effect of erythropoietin (EPO) in hippocampal mitochondrial function and memory in two mouse models: one overexpressing EPO in the brain, and juvenile mice treated during three days with a high dose of intraperitoneal EPO. Their results suggest that erythropoietin in the neonatal brain may impact spatial memory by increasing mitochondrial content.
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Affiliation(s)
- Robert A Jacobs
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.,Department of Human Physiology & Nutrition, University of Colorado, Colorado Springs, CO, USA
| | - Mostafa A Aboouf
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIPH), University of Zurich, Zurich, Switzerland.,Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Christina Koester-Hegmann
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.,Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | - Paola Muttathukunnel
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland.,Center for Neuroscience Zurich (ZNZ), Zurich, Switzerland
| | - Sofien Laouafa
- Faculty of Medicine, Centre Hospitalier Universitaire de Québec (CHUQ), Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Christian Arias-Reyes
- Faculty of Medicine, Centre Hospitalier Universitaire de Québec (CHUQ), Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Markus Thiersch
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIPH), University of Zurich, Zurich, Switzerland
| | - Jorge Soliz
- Faculty of Medicine, Centre Hospitalier Universitaire de Québec (CHUQ), Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Max Gassmann
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIPH), University of Zurich, Zurich, Switzerland
| | - Edith M Schneider Gasser
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland. .,Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland. .,Center for Neuroscience Zurich (ZNZ), Zurich, Switzerland.
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Lin CY, Kuo PJ, Chin YT, Weng IT, Lee HW, Huang HM, Lin HY, Hsiung CN, Chan YH, Lee SY. Dental Pulp Stem Cell Transplantation with 2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside Accelerates Alveolar Bone Regeneration in Rats. J Endod 2019; 45:435-441. [DOI: 10.1016/j.joen.2018.12.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 12/06/2018] [Accepted: 12/22/2018] [Indexed: 12/11/2022]
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8
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Zhou Y, Wang G, Li D, Wang Y, Wu Q, Shi J, Zhang F. Dual modulation on glial cells by tetrahydroxystilbene glucoside protects against dopamine neuronal loss. J Neuroinflammation 2018; 15:161. [PMID: 29801454 PMCID: PMC5970496 DOI: 10.1186/s12974-018-1194-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 05/09/2018] [Indexed: 12/31/2022] Open
Abstract
Background Microglia-mediated neuroinflammation is recognized to mainly contribute to the pathogenesis of Parkinson’s disease (PD). Tetrahydroxystilbene glucoside (TSG) has been proved to be beneficial for health with a great number of pharmacological properties. We examined the effects of TSG against dopamine (DA) neuronal loss towards development of a PD treatment strategy. Methods Substantia nigral stereotaxic single injection of lipopolysaccharide (LPS)-induced rat DA neuronal damage was employed to investigate TSG-produced neuroprotection. In addition, primary rat midbrain neuron-glia co-cultures were performed to explore the underlying mechanisms. Results Daily intraperitoneal injection of TSG for seven consecutive days significantly attenuated LPS-induced loss of DA neurons in the substantia nigra. In addition, glia-dependent mechanisms were responsible for TSG-mediated neuroprotection. First, TSG ameliorated microglia-mediated neuroinflammation and the subsequent production of various pro-inflammatory and neurotoxic factors. Second, astroglial neurotrophic factor neutralization weakened TSG-mediated neuroprotection, showing that TSG was protective in part via increasing astroglia-derived neurotrophic factor secretion. Conclusions TSG protects DA neurons against LPS-induced neurotoxicity through dual modulation on glial cells by attenuating microglia-mediated neuroinflammation and enhancing astroglia-derived neurotrophic effects. These findings might open new alternative avenues for PD treatment.
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Affiliation(s)
- Yanzhen Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Department of Ear-Nose-Throat Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Guoqing Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Daidi Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yanying Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Feng Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.
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9
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Singhal NK, Alkhayer K, Shelestak J, Clements R, Freeman E, McDonough J. Erythropoietin Upregulates Brain Hemoglobin Expression and Supports Neuronal Mitochondrial Activity. Mol Neurobiol 2018; 55:8051-8058. [PMID: 29498007 DOI: 10.1007/s12035-018-0971-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 02/19/2018] [Indexed: 01/09/2023]
Abstract
Multiple sclerosis (MS) is a neuro-inflammatory and demyelinating disease. Downregulation of neuronal mitochondrial gene expression and activity have been reported in several studies of MS. We have previously shown that hemoglobin-β (Hbb) signals to the nucleus of neurons and upregulates H3K4me3, a histone mark involved in regulating cellular metabolism and differentiation. The present study was undertaken to evaluate the effect of erythropoietin (EPO) on the upregulation of hemoglobin and mitochondrial-associated neuroprotection. We found that administering EPO (5000 IU/kg intraperitoneally) to mice upregulated brain Hbb expression, levels of H3K4me3, expression of mitochondrial complex III, complex V, and mitochondrial respiration. We also found that the neuronal mitochondrial metabolite N-acetylaspartate (NAA), a marker of neuronal mitochondrial activity, was increased with EPO treatment. Further, we measured the effects of EPO on preventing mitochondrial deficits in the cuprizone toxic demyelinating mouse model of MS. We found that EPO prevented cuprizone-mediated decreases in Hbb, complex III, and NAA. Our data suggest that EPO mediated regulation of Hbb supports neuronal energetics and may provide neuroprotection in MS and other neurodegenerative diseases where a dysfunction of mitochondria contributes to disease.
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Affiliation(s)
- N K Singhal
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA.
| | - K Alkhayer
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - J Shelestak
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - R Clements
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - E Freeman
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - J McDonough
- Department of Biological Sciences and School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA.
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10
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Leaw B, Nair S, Lim R, Thornton C, Mallard C, Hagberg H. Mitochondria, Bioenergetics and Excitotoxicity: New Therapeutic Targets in Perinatal Brain Injury. Front Cell Neurosci 2017; 11:199. [PMID: 28747873 PMCID: PMC5506196 DOI: 10.3389/fncel.2017.00199] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 06/26/2017] [Indexed: 12/30/2022] Open
Abstract
Injury to the fragile immature brain is implicated in the manifestation of long-term neurological disorders, including childhood disability such as cerebral palsy, learning disability and behavioral disorders. Advancements in perinatal practice and improved care mean the majority of infants suffering from perinatal brain injury will survive, with many subtle clinical symptoms going undiagnosed until later in life. Hypoxic-ischemia is the dominant cause of perinatal brain injury, and constitutes a significant socioeconomic burden to both developed and developing countries. Therapeutic hypothermia is the sole validated clinical intervention to perinatal asphyxia; however it is not always neuroprotective and its utility is limited to developed countries. There is an urgent need to better understand the molecular pathways underlying hypoxic-ischemic injury to identify new therapeutic targets in such a small but critical therapeutic window. Mitochondria are highly implicated following ischemic injury due to their roles as the powerhouse and main energy generators of the cell, as well as cell death processes. While the link between impaired mitochondrial bioenergetics and secondary energy failure following loss of high-energy phosphates is well established after hypoxia-ischemia (HI), there is emerging evidence that the roles of mitochondria in disease extend far beyond this. Indeed, mitochondrial turnover, including processes such as mitochondrial biogenesis, fusion, fission and mitophagy, affect recovery of neurons after injury and mitochondria are involved in the regulation of the innate immune response to inflammation. This review article will explore these mitochondrial pathways, and finally will summarize past and current efforts in targeting these pathways after hypoxic-ischemic injury, as a means of identifying new avenues for clinical intervention.
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Affiliation(s)
- Bryan Leaw
- The Ritchie Centre, Hudson Institute of Medical ResearchClayton, VIC, Australia
| | - Syam Nair
- Perinatal Center, Institute of Physiology and Neuroscience, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Rebecca Lim
- The Ritchie Centre, Hudson Institute of Medical ResearchClayton, VIC, Australia.,Department of Obstetrics and Gynaecology, Monash University ClaytonClayton, VIC, Australia
| | - Claire Thornton
- Centre for the Developing Brain, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' HospitalLondon, United Kingdom
| | - Carina Mallard
- Perinatal Center, Institute of Physiology and Neuroscience, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Henrik Hagberg
- Centre for the Developing Brain, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' HospitalLondon, United Kingdom.,Perinatal Center, Department of Clinical Sciences, Sahlgrenska Academy, Gothenburg UniversityGothenburg, Sweden
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11
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Altinoz MA, Ozcan EM, Ince B, Guloksuz S. Hemoglobins as new players in multiple sclerosis: metabolic and immune aspects. Metab Brain Dis 2016; 31:983-92. [PMID: 27234993 DOI: 10.1007/s11011-016-9845-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 05/20/2016] [Indexed: 12/20/2022]
Abstract
Basic science investigations and clinical observations in recent years indicate that hemoglobins (Hbs) may have important roles in the pathogenesis of multiple sclerosis (MS). These findings can be summarized as follows: 1- Erythrocyte fragility is higher in MS patients, the released free Hb damages blood-brain barrier, myelin basic protein and also triggers iron overload and inflammation. 2- Free Hb may further activate the inflammatory responses through Toll-like receptor 4 (TLR4), present on microglia and other innate immunocytes. 3- Hbs are expressed in neural cells including dopaminergic neurons. Also, several studies have demonstrated that Hbs are expressed in astrocytes and oligodendroglia. 4- Hb overexpression in neural cells upregulate mitochondrial complex I-V subunits. The comparison of the mitochondrial proteome between healthy and patients with MS revealed only four differentially expressed proteins including Hb β-chain. 5- Microarray analysis of 8300 genes in monocytes of twins with and without MS showed a difference in 25 genes that include genes encoding α- and β-globins as well. 6- β- and α-globin gene clusters reside at chromosomal regions 11p15.5 and 16p13.3, respectively. Whole genome screen (WGS) in Sardinian MS families using 327 markers revealed linkage in 3 regions including 11p15.5 loci. Further, 11p15.5 and 16p13.3 were part of the 17 regions identified in the WGS study of 136 sibling-pairs in Nordic countries analyzing 399 microsatellite markers. In the light of these findings, we propose that free Hb released from dying erythrocytes is detrimental. On the contrary, intracellular Hbs in neural cells are protective in MS. The genomic linkage findings can be explained by common haematologically-silent Hb variants that may lower the protective function of intracellular Hbs, and therefore, enhance the risk for MS. In the absence of such variants, aberrations in the translational and post-translational mechanisms controlling synthesis of neural Hbs may also enhance the vulnerability to MS. Alternatively, such genetic variants may perturb the metabolism of anti-inflammatory hemorphins produced via cleavage of Hbs.
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Affiliation(s)
- Meric A Altinoz
- Immunology Program, Experimental Medicine Research Institute, Istanbul University, Yildirim Apt. No: 5, D:6, Güven Sk, Nurtepe Mh, Kagithane, Istanbul, Turkey.
| | - Emin M Ozcan
- Department of Neurology, Biruni University, Istanbul, Turkey
| | - Bahri Ince
- Department of Psychiatry, Bakirkoy Education and Research Hospital for Psychiatry, Istanbul, Turkey
| | - Sinan Guloksuz
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, Netherlands
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Biological Activities of 2,3,5,4'-Tetrahydroxystilbene-2-O-β-D-Glucoside in Antiaging and Antiaging-Related Disease Treatments. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:4973239. [PMID: 27413420 PMCID: PMC4931083 DOI: 10.1155/2016/4973239] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 05/29/2016] [Indexed: 11/17/2022]
Abstract
2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside (THSG) is active component of the Chinese medicinal plant Polygonum multiflorum Thunb. (THSG). Pharmacological studies have demonstrated that THSG exhibits numerous biological functions in treating atherosclerosis, lipid metabolism, vascular and cardiac remodeling, vascular fibrosis, cardiac-cerebral ischemia, learning and memory disorders, neuroinflammation, Alzheimer and Parkinson diseases, diabetic complications, hair growth problems, and numerous other conditions. This review focuses on the biological effects of THSG in antiaging and antiaging-related disease treatments and discusses its molecular mechanisms.
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Shephard F, Greville-Heygate O, Liddell S, Emes R, Chakrabarti L. Analysis of Mitochondrial haemoglobin in Parkinson's disease brain. Mitochondrion 2016; 29:45-52. [PMID: 27181046 PMCID: PMC4940210 DOI: 10.1016/j.mito.2016.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 04/29/2016] [Accepted: 05/03/2016] [Indexed: 01/14/2023]
Abstract
Mitochondrial dysfunction is an early feature of neurodegeneration. We have shown there are mitochondrial haemoglobin changes with age and neurodegeneration. We hypothesised that altered physiological processes are associated with recruitment and localisation of haemoglobin to these organelles. To confirm a dynamic localisation of haemoglobin we exposed Drosophila melanogaster to cyclical hypoxia with recovery. With a single cycle of hypoxia and recovery we found a relative accumulation of haemoglobin in the mitochondria compared with the cytosol. An additional cycle of hypoxia and recovery led to a significant increase of mitochondrial haemoglobin (p<0.05). We quantified ratios of human mitochondrial haemoglobin in 30 Parkinson's and matched control human post-mortem brains. Relative mitochondrial/cytosolic quantities of haemoglobin were obtained for the cortical region, substantia nigra and cerebellum. In age matched post-mortem brain mitochondrial haemoglobin ratios change, decreasing with disease duration in female cerebellum samples (n=7). The change is less discernible in male cerebellum (n=18). In cerebellar mitochondria, haemoglobin localisation in males with long disease duration shifts from the intermembrane space to the outer membrane of the organelle. These new data illustrate dynamic localisation of mitochondrial haemoglobin within the cell. Mitochondrial haemoglobin should be considered in the context of gender differences characterised in Parkinson's disease. It has been postulated that cerebellar circuitry may be activated to play a protective role in individuals with Parkinson's. The changing localisation of intracellular haemoglobin in response to hypoxia presents a novel pathway to delineate the role of the cerebellum in Parkinson's disease.
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Affiliation(s)
- Freya Shephard
- University of Nottingham, Faculty of Medicine, SVMS, Sutton Bonington Campus, LE12 5RD, England, UK
| | - Oliver Greville-Heygate
- University of Nottingham, Faculty of Medicine, SVMS, Sutton Bonington Campus, LE12 5RD, England, UK
| | - Susan Liddell
- Division of Animal Sciences, School of Biosciences, Sutton Bonington Campus, LE12 5RD, England, UK
| | - Richard Emes
- University of Nottingham, Faculty of Medicine, SVMS, Sutton Bonington Campus, LE12 5RD, England, UK
| | - Lisa Chakrabarti
- University of Nottingham, Faculty of Medicine, SVMS, Sutton Bonington Campus, LE12 5RD, England, UK.
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