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Li C, Fennessy P. The periosteum: a simple tissue with many faces, with special reference to the antler-lineage periostea. Biol Direct 2021; 16:17. [PMID: 34663443 PMCID: PMC8522104 DOI: 10.1186/s13062-021-00310-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022] Open
Abstract
Periosteum is a thin membrane covering bone surfaces and consists of two layers: outer fibrous layer and inner cambium layer. Simple appearance of periosteum has belied its own complexity as a composite structure for physical bone protection, mechano-sensor for sensing mechanical loading, reservoir of biochemical molecules for initiating cascade signaling, niche of osteogenic cells for bone formation and repair, and "umbilical cord" for nourishing bone tissue. Periosteum-derived cells (PDCs) have stem cell attributes: self-renewal (no signs of senescence until 80 population doublings) and multipotency (differentiate into fibroblasts, osteoblasts, chondrocytes, adipocytes and skeletal myocytes). In this review, we summarized the currently available knowledge about periosteum and with special references to antler-lineage periostea, and demonstrated that although periosteum is a type of simple tissue in appearance, with multiple faces in functions; antler-lineage periostea add another dimension to the properties of somatic periostea: capable of initiation of ectopic organ formation upon transplantation and full mammalian organ regeneration when interacted with the covering skin. Very recently, we have translated this finding into other mammals, i.e. successfully induced partial regeneration of the amputated rat legs. We believe further refinement along this line would greatly benefit human health.
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Affiliation(s)
- Chunyi Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 1345 Pudong Rd., Changchun, 130000, Jilin, China.
| | - Peter Fennessy
- AbacusBio Limited, 442 Moray Place, Dunedin, New Zealand
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2
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Liang S, Zhang J, Zhang Q, Li L, Zhang Y, Jin T, Zhang B, He X, Chen L, Tao J, Li Z, Liu W, Chen L. Longitudinal tracing of white matter integrity on diffusion tensor imaging in the chronic cerebral ischemia and acute cerebral ischemia. Brain Res Bull 2020; 154:135-141. [DOI: 10.1016/j.brainresbull.2019.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/18/2019] [Accepted: 10/30/2019] [Indexed: 10/25/2022]
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Creating conditions for a sense of security during the evenings and nights among older persons receiving home health care in ordinary housing: a participatory appreciative action and reflection study. BMC Geriatr 2019; 19:351. [PMID: 31842776 PMCID: PMC6915921 DOI: 10.1186/s12877-019-1372-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 11/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Today many older persons in ordinary housing receive home health care. It is stipulated that the care is to provide security; however, deficiencies in home health care are reported in many countries. It may be difficult to implement a sense of security among older persons receiving home health care in ordinary housing, especially during the evenings and nights, due to a lack of knowledge. METHODS This study is part of a larger project with a participatory appreciative action and reflection (PAAR) approach. We invited older persons, relatives, nurse assistants, registered nurses, and their managers to co-create knowledge with us on how conditions for a sense of security can be created during evenings and nights among older persons receiving home health care in ordinary housing. We performed thematic analysis of the data. RESULTS Five subthemes were developed that gave structure to two main themes. The first main theme, To confirm the self-image, has the following subthemes: To see the home as a reflection of the person's identity and To maintain self-determination. The second main theme, To create interaction in a sheltered place, has these subthemes: To undress the power, To create control and lifelines, and To create a good sleeping environment. The two themes interact and are each other's conditions. The person's self-image must be confirmed in order to create interaction in a sheltered place and through the interaction, the self-image is confirmed. CONCLUSION Conditions necessary for older persons to have a sense of security are living in a familiar environment, having habits and routines maintained, and having self-determination. Other conditions are equality, the prevention of falls, and an individualized sleeping environment. Older people's self-determination should be honored, and they should not being excluded from decision-making. We need to ask them if the conditions are sufficient and their sense of security is great enough to allow them to continue living in their ordinary housing.
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4
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Yamada J, Jinno S. Potential link between antidepressant-like effects of ketamine and promotion of adult neurogenesis in the ventral hippocampus of mice. Neuropharmacology 2019; 158:107710. [DOI: 10.1016/j.neuropharm.2019.107710] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/10/2019] [Accepted: 07/12/2019] [Indexed: 12/16/2022]
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5
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Lee TK, Park YE, Park CW, Kim B, Lee JC, Park JH, Lee HA, Won MH, Ahn JH. Age-dependent changes of p53 and p63 immunoreactivities in the mouse hippocampus. Lab Anim Res 2019; 35:20. [PMID: 32257908 PMCID: PMC7081572 DOI: 10.1186/s42826-019-0022-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/09/2019] [Indexed: 12/31/2022] Open
Abstract
P53 and its family member p63 play important roles in cellular senescence and organismal aging. In this study, p53 and p63 immunoreactivity were examined in the hippocampus of young, adult and aged mice by using immunohistochemistry. In addition, neuronal distribution and degeneration was examined by NeuN immunohistochemistry and fluoro-Jade B fluorescence staining. Strong p53 immunoreactivity was mainly expressed in pyramidal and granule cells of the hippocampus in young mice. p53 immunoreactivity in the pyramidal and granule cells was significantly reduced in the adult mice. In the aged mice, p53 immunoreactivity in the pyramidal and granule cells was more significantly decreased. p63 immunoreactivity was strong in the pyramidal and granule cells in the young mice. p63 immunoreactivity in these cells was apparently and gradually decreased with age, showing that p63 immunoreactivity in the aged granule cells was hardly shown. However, numbers of pyramidal neurons and granule cells were not significantly decreased in the aged mice with normal aging. Taken together, this study indicates that there are no degenerative neurons in the hippocampus during normal aging, showing that p53 and p63 immunoreactivity in hippocampal neurons was progressively reduced during normal aging, which might be closely related to the normal aging processes.
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Affiliation(s)
- Tae-Kyeong Lee
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Young Eun Park
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Cheol Woo Park
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Bora Kim
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Jae-Chul Lee
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Joon Ha Park
- 2Department of Anatomy, College of Korean Medicine, Dongguk University, Gyeongju, Gyeongbuk 38066 Republic of Korea
| | - Hyang-Ah Lee
- 3Department of Obstetrics and Gynecology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Moo-Ho Won
- 1Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341 Republic of Korea
| | - Ji Hyeon Ahn
- 4Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252 Republic of Korea
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Aguado-Llera D, Canelles S, Fernández-Mendívil C, Frago LM, Argente J, Arilla-Ferreiro E, López MG, Barrios V. Improvement in inflammation is associated with the protective effect of Gly-Pro-Glu and cycloprolylglycine against Aβ-induced depletion of the hippocampal somatostatinergic system. Neuropharmacology 2019; 151:112-126. [PMID: 30981749 DOI: 10.1016/j.neuropharm.2019.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 04/02/2019] [Accepted: 04/06/2019] [Indexed: 02/08/2023]
Abstract
Glycine-proline-glutamate (GPE) is a cleaved tripeptide of IGF-I that can be processed to cycloprolylglycine (cPG) in the brain. IGF-I protects the hippocampal somatostatinergic system from β-amyloid (Aβ) insult and although neither IGF-I-derived peptides bind to IGF-I receptors, they exert protective actions in several neurological disorders. As their effects on the hippocampal somatostatinergic system remain unknown, the objective of this study was to evaluate if cPG and/or GPE prevent the deleterious effects of Aβ25-35 infusion on this system and whether changes in intracellular-related signaling and interleukin (IL) content are involved in their protective effect. We also determined the effect of cPG or GPE co-administration with Aβ25-35 on IL secretion in glial cultures and the influence of these ILs on signaling activation and somatostatin synthesis in neuronal cultures. cPG or GPE co-administration reduced Aβ-induced cell death and pro-inflammatory ILs, increased IL-4 and partially avoided the reduction of components of the somatostatinergic system affected by Aβ25-35. GPE increased activation of Akt and CREB and reduced GSK3β activation and astrogliosis, whereas cPG increased phosphorylation of extracellular signal-regulated kinases. Both peptides converged in the activation of mTOR and S6 kinase. Co-administration of these peptides with Aβ25-35 to glial cultures increased IL-4 and reduced IL-1β; this release of IL-4 could be responsible for activation of Akt and increased somatostatin in neuronal cultures. Our findings suggest that cPG and GPE exert protective effects against Aβ on the somatostatinergic system by a reduction of the inflammatory environment that may activate different pro-survival pathways in these neurons.
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Affiliation(s)
- David Aguado-Llera
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | - Sandra Canelles
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain
| | - Cristina Fernández-Mendívil
- Department of Pharmacology and Therapeutics and Institute Teófilo Hernando for Drug Discovery, Universidad Autónoma de Madrid, Madrid, Spain
| | - Laura M Frago
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain; Department of Pediatrics, Universidad Autónoma de Madrid, Madrid, Spain
| | - Jesús Argente
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain; Department of Pediatrics, Universidad Autónoma de Madrid, Madrid, Spain; IMDEA Food Institute, CEI UAM + CSIC, Madrid, Spain
| | | | - Manuela G López
- Department of Pharmacology and Therapeutics and Institute Teófilo Hernando for Drug Discovery, Universidad Autónoma de Madrid, Madrid, Spain
| | - Vicente Barrios
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain.
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Zhou X, Qiu YH, He P, Jiang F, Wu LF, Lu X, Lei SF, Deng FY. Why SNP rs227584 is associated with human BMD and fracture risk? A molecular and cellular study in bone cells. J Cell Mol Med 2018; 23:898-907. [PMID: 30370607 PMCID: PMC6349212 DOI: 10.1111/jcmm.13991] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/03/2018] [Accepted: 09/29/2018] [Indexed: 11/28/2022] Open
Abstract
A large number of SNPs significant for osteoporosis (OP) had been identified by genome-wide association studies. However, the underlying association mechanisms were largely unknown. From the perspective of protein phosphorylation, gene expression regulation, and bone cell activity, this study aims to illustrate association mechanisms for representative SNPs of interest. We utilized public databases and bioinformatics tool to identify OP-associated SNPs which potentially influence protein phosphorylation (phosSNPs). Associations with hip/spine BMD, as well as fracture risk, in human populations for one significant phosSNP, that is, rs227584 (major/minor allele: C/A, EAS population) located in C17orf53 gene, were suggested in prior meta-analyses. Specifically, carriers of allele C had significant higher BMD and lower risk of low-trauma fractures than carriers of A. We pursued to test the molecular and cellular functions of rs227584 in bone through osteoblastic cell culture and multiple assays. We identified five phosSNPs significant for OP (P < 0.01). The osteoblastic cells, which was transfected with wild-type C17orf53 (allele C at rs227584, P126), demonstrated specific interaction with NEK2 kinase, increased expression levels of osteoblastic genes significantly (OPN, OCN, COL1A1, P < 0.05), and promoted osteoblast growth and ALP activity, in contrast to those transfected with mutant C17orf53 (allele A at rs227584, T126). In the light of the consistent evidences between the present functional study in human bone cells and the prior association studies in human populations, we conclude that the SNP rs227584, via altering protein-kinase interaction, regulates osteoblastic gene expression, influences osteoblast growth and activity, hence to affect BMD and fracture risk in humans.
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Affiliation(s)
- Xu Zhou
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Ying-Hua Qiu
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Pei He
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Fei Jiang
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Long-Fei Wu
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Xin Lu
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Shu-Feng Lei
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
| | - Fei-Yan Deng
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University, Suzhou, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, China
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Yan BC, Xu P, Gao M, Wang J, Jiang D, Zhu X, Won MH, Su PQ. Changes in the Blood-Brain Barrier Function Are Associated With Hippocampal Neuron Death in a Kainic Acid Mouse Model of Epilepsy. Front Neurol 2018; 9:775. [PMID: 30258402 PMCID: PMC6143688 DOI: 10.3389/fneur.2018.00775] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 08/27/2018] [Indexed: 12/19/2022] Open
Abstract
The kainic acid (KA)-induced epilepsy experimental model is widely used to study the mechanisms underlying this disorder. Recently, the blood-brain barrier (BBB) has become an innovative alternative treatment target for epilepsy patients. KA causes neuronal injury and BBB damage in this experimental epilepsy model but the mechanisms underlying epilepsy-related neuronal injury, autophagy, and BBB damage remain unclear. Therefore, the present study investigated the relationships among neuronal injury, the expressions of autophagy-related proteins, and changes in BBB-related proteins during the acute phase of epilepsy to further understand the mechanisms and pharmacotherapy of epilepsy. NeuN immunohistochemistry and Fluoro-Jade B (FJ-B) staining in the hippocampal CA3 region revealed that neuronal death induced by intraventricular injections of 10 μg/kg KA was greater than that induced by 3 μg/kg KA. In addition, there were transient increases in the levels of microtubule-associated protein light chain 3-II (LC3I/II) and Beclin-1, which are autophagy-related proteins involved in neuronal death, in this region 24 h after the administration of 10 μg/kg KA. There were also morphological changes in BBB-related cells such as astrocytes, endothelial cells (ECs), and tight junctions (TJs). More specifically, there was a significant increase in the activation of astrocytes 72 h after the administration of 10 μg/kg KA as well as continuous increases in the expressions of platelet endothelial cell adhesion molecule-1 (PECAM-1) and BBB-related TJ proteins (Zonula occludens-1 and Claudin-5) until 72 h after KA treatment. These results suggest that the overexpression of autophagy-related proteins and astrocytes and transient increases in the expressions of BBB-related TJ proteins may be closely related to autophagic neuronal injury. These findings provide a basis for the identification of novel therapeutic targets for patients with epilepsy.
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Affiliation(s)
- Bing Chun Yan
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China.,Department of Integrated Traditional Chinese and Western Medicine, Medical College, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Pei Xu
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Haian, China
| | - Manman Gao
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China
| | - Jie Wang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China
| | - Dan Jiang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China
| | - Xiaolu Zhu
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea
| | - Pei Qing Su
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Department of Traditional Chinese and Western Medicine, Yangzhou University, Yangzhou, China
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Zhou W, Wang J, Qi Q, Feng Z, Huang B, Chen A, Zhang D, Li W, Zhang Q, Bjerkvig R, Li X, Wang J. Matrine induces senescence of human glioblastoma cells through suppression of the IGF1/PI3K/AKT/p27 signaling pathway. Cancer Med 2018; 7:4729-4743. [PMID: 30079478 PMCID: PMC6143938 DOI: 10.1002/cam4.1720] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Matrine, a traditional Chinese medicine, has recently been shown to have antitumor properties in diverse cancer cells. Here, we explored the effect of matrine on human glioblastoma multiforme (GBM) cells. METHODS Glioblastoma multiforme cell lines were treated with matrine to assess proliferation and viability using EdU and CCK8 assays. SA-β-gal assays were used to evaluate cellular senescence, and a cytokine array and ELISA assay were used to screen for secreted cytokines altered in GBM cells after matrine treatment. Immunohistochemistry and Western blot analysis were performed to evaluate protein levels in matrine-treated cell lines and in samples obtained from orthotopic xenografts. Specific activators of AKT and IGF1 were used to identify the pathways mediating the effect. RESULTS Matrine potently inhibited growth of GBM cell lines in vitro. Based on in situ assays, growth arrest induced by matrine was primarily achieved through induction of cellular senescence. Matrine treatment led to decreased expression of proteins involved in promoting cell growth, IGF1, PI3K, and pAKT. Exposure of cells to a small molecule activating AKT (SC79) and recombinant IGF1 led to a reduced number of senescent SA-β-gal-positive cells in the presence of matrine. Finally, matrine inhibited growth of orthotopic xenografts established from luciferase-stable-U251 or luciferase-stable-P3 cells and prolonged overall survival in mice. CONCLUSIONS These results indicated that matrine arrested cell growth through inhibition of IGF1/PI3K/AKT signaling. Matrine warrants further investigation as a potential therapy in the treatment of patients with GBM.
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Affiliation(s)
- Wenjing Zhou
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Jiwei Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Qichao Qi
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Zichao Feng
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Anjing Chen
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Di Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Wenjie Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Qing Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Rolf Bjerkvig
- Department of Biomedicine, K G Jebsen Brain Tumor Research Center, University of Bergen, Bergen, Norway
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute, Key Laboratory of Brain Functional Remodeling, Shandong University, Jinan, Shandong, China.,Department of Biomedicine, K G Jebsen Brain Tumor Research Center, University of Bergen, Bergen, Norway
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Xie Y, Wang X. Lycium barbarum polysaccharides attenuates the apoptosis of hippocampal neurons induced by sevoflurane. Exp Ther Med 2018; 16:1834-1840. [PMID: 30186408 PMCID: PMC6122330 DOI: 10.3892/etm.2018.6426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/21/2018] [Indexed: 01/29/2023] Open
Abstract
Following the application of inhalational anesthetics, including sevoflurane, patients may suffer from neural injury. The present study was conducted to explore the mechanism involved in Lycium barbarum polysaccharides (LBP) treatment of sevoflurane injured hippocampal neurons. Primary hippocampal neurons were isolated from Sprague Dawley embryonic rats. The Cell Counting Kit-8 (CCK-8) assay was used to detect cell viability. Furthermore, flow cytometry (FCM) was used to determine cell proliferation and apoptosis rates. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis were applied to detect the expression levels of apoptosis-related factors, including activated-Caspase-3, B-cell lymphoma/leukemia-2 (Bcl-2) and Bcl-2 associated X (Bax), phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2) and total ERK1/2. The results showed that LBP promoted cell viability and cell proliferation but inhibited cell apoptosis in neurons injured with 3% sevoflurane, in dose-dependent manners (100, 200 and 400 µg/ml). LBP increased the expression levels of Bcl-2 and p-ERK1/2, and decreased levels of activated-Caspase-3 and Bax in a dose-dependent manner in hippocampal neurons that were injured with sevoflurane. In addition, ERK1/2 inhibitor reversed the above phenomenon in 400 µg/ml LBP and 3% sevoflurane-treated hippocampal neurons. Therefore, the present study indicated that LBP protected hippocampal neurons from sevoflurane injury, including aberrant cell apoptosis, via the ERK1/2 pathway.
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Affiliation(s)
- Yuhai Xie
- Department of Anesthesiology, Qinghai Red Cross Hospital, Xining, Qinghai 810000, P.R. China
| | - Xuejun Wang
- Department of Anesthesiology, Qinghai Red Cross Hospital, Xining, Qinghai 810000, P.R. China
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Exercise Training Protects Against Aging-Induced Cognitive Dysfunction via Activation of the Hippocampal PGC-1α/FNDC5/BDNF Pathway. Neuromolecular Med 2018; 20:386-400. [DOI: 10.1007/s12017-018-8500-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/30/2018] [Indexed: 12/28/2022]
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