keyword
MENU ▼
Read by QxMD icon Read
search

Remyelination

keyword
https://www.readbyqxmd.com/read/28107514/karyopherin-alpha-proteins-regulate-oligodendrocyte-differentiation
#1
Benjamin M Laitman, John N Mariani, Chi Zhang, Setsu Sawai, Gareth R John
Proper regulation of the coordinated transcriptional program that drives oligodendrocyte (OL) differentiation is essential for central nervous system myelin formation and repair. Nuclear import, mediated in part by a group of karyopherin alpha (Kpna) proteins, regulates transcription factor access to the genome. Understanding how canonical nuclear import functions to control genomic access in OL differentiation may aid in the creation of novel therapeutics to stimulate myelination and remyelination. Here, we show that members of the Kpna family regulate OL differentiation, and may play distinct roles downstream of different pro-myelinating stimuli...
2017: PloS One
https://www.readbyqxmd.com/read/28105588/nogo-a-antibodies-for-progressive-multiple-sclerosis
#2
Benjamin V Ineichen, Patricia S Plattner, Nicolas Good, Roland Martin, Michael Linnebank, Martin E Schwab
Most of the current therapies, as well as many of the clinical trials, for multiple sclerosis (MS) target the inflammatory autoimmune processes, but less than 20% of all clinical trials investigate potential therapies for the chronic progressive disease stage of MS. The latter is responsible for the steadily increasing disability in many patients, and there is an urgent need for novel therapies that protect nervous system tissue and enhance axonal growth and/or remyelination. As outlined in this review, solid pre-clinical data suggest neutralization of the neurite outgrowth inhibitor Nogo-A as a potential new way to achieve both axonal and myelin repair...
January 19, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28101995/cholinergic-signaling-in-myelination
#3
REVIEW
R Douglas Fields, Dipankar J Dutta, Jillian Belgrad, Maya Robnett
There is a long history of research on acetylcholine (ACh) function in myelinating glia, but a resurgence of interest recently as a result of the therapeutic potential of manipulating ACh signaling to promote remyelination, and the broader interest in neurotransmitter signaling in activity-dependent myelination. Myelinating glia express all the major types of muscarinic and nicotinic ACh receptors at different stages of development, and acetylcholinesterase and butyrylcholinesterase are highly expressed in white matter...
January 19, 2017: Glia
https://www.readbyqxmd.com/read/28093942/self-assembling-peptide-nanostructures-on-aligned-poly-lactide-co-glycolide-nanofibers-for-the-functional-regeneration-of-sciatic-nerve
#4
Manasa Nune, Anuradha Subramanian, Uma Maheswari Krishnan, Suraj Sasidhara Kaimal, Swaminathan Sethuraman
AIM: Regeneration of functional peripheral nerve tissue at critical-sized defect requires extracellular matrix analogs impregnated with appropriate biosignals to regulate the cell fate process and subsequent tissue progression. The aim of the study was to develop electrospun aligned nanofibers as architectural analogs integrated with RADA16-I-BMHP1 as biofunctional peptides. MATERIALS & METHODS: Aligned poly(lactide-co-glycolide) (PLGA)-RADA16-I-BMHP1 nanofibers were fabricated and characterized for their in vitro potential using rat Schwann cell line and in vivo potential using a 10 mm sciatic nerve transection rat model...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093713/timing-of-future-remyelination-therapies-and-their-potential-to-stop-multiple-sclerosis-progression
#5
Burcu Zeydan, Moses Rodriguez, Orhun H Kantarci
Prior to the onset of demyelination in multiple sclerosis (MS), early oligodendrocyte injury, axonal degeneration and astroglial scarring occur. The irreversible progressive phase of MS begins when the axonal loss threshold is reached. Progressive disease onset has the highest impact on a poor prognosis in MS. Conversion to progressive disease is essentially an age-dependent process independent of disease duration and initial disease course. Although prevention of relapses has been the primary approach in the disease management, incomplete recovery from even the first relapse correlates with the long-term neurodegenerative phenotype of progressive MS onset...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28093710/role-of-oligodendrocyte-dysfunction-in-demyelination-remyelination-and-neurodegeneration-in-multiple-sclerosis
#6
Adriana Octaviana Dulamea
Oligodendrocytes (OLs) are the myelinating cells of the central nervous system (CNS) during development and throughout adulthood. They result from a complex and well controlled process of activation, proliferation, migration and differentiation of oligodendrocyte progenitor cells (OPCs) from the germinative niches of the CNS. In multiple sclerosis (MS), the complex pathological process produces dysfunction and apoptosis of OLs leading to demyelination and neurodegeneration. This review attempts to describe the patterns of demyelination in MS, the steps involved in oligodendrogenesis and myelination in healthy CNS, the different pathways leading to OLs and myelin loss in MS, as well as principles involved in restoration of myelin sheaths...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28093709/molecular-genetic-and-epigenetic-basis-of-multiple-sclerosis
#7
Zohreh Hojati
Multiple Sclerosis (MS) is a chronic immune-mediated disease of spinal cord and brain. The initial event in MS occurs when activated CD4(+) T cells in periphery exacerbates immune responses by stimulating immune cells such as B cells, CD8(+) cells, mast cells, granulocytes and monocytes. These proinflammatory cells pass blood brain barrier by secreting proinflammatory cytokines including TNF-α and INF-γ which activate adhesion factors. APCs (antigen-presenting cells) reactivate CD4(+) T cells after infiltrating the CNS and CD4(+) T cells produce cytokines and chemokines...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28091609/leptin-sustains-spontaneous-remyelination-in-the-adult-central-nervous-system
#8
Ken Matoba, Rieko Muramatsu, Toshihide Yamashita
Demyelination is a common feature of many central nervous system (CNS) diseases and is associated with neurological impairment. Demyelinated axons are spontaneously remyelinated depending on oligodendrocyte development, which mainly involves molecules expressed in the CNS environment. In this study, we found that leptin, a peripheral hormone secreted from adipocytes, promoted the proliferation of oligodendrocyte precursor cells (OPCs). Leptin increased the OPC proliferation via in vitro phosphorylation of extracellular signal regulated kinase (ERK); whereas leptin neutralization inhibited OPC proliferation and remyelination in a mouse model of toxin-induced demyelination...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088313/q-space-myelin-map-imaging-for-longitudinal-analysis-of-demyelination-and-remyelination-in-multiple-sclerosis-patients-treated-with-fingolimod-a-preliminary-study
#9
Mariko Tanikawa, Jin Nakahara, Junichi Hata, Shigeaki Suzuki, Kanehiro Fujiyoshi, Hirokazu Fujiwara, Suketaka Momoshima, Masahiro Jinzaki, Masaya Nakamura, Hideyuki Okano, Shinichi Takahashi, Norihiro Suzuki
BACKGROUND: Fingolimod (FTY) is an oral sphingosine-1-phosphate receptor modulator that reduces relapse and slows brain atrophy in multiple sclerosis (MS) patients. In addition, FTY has been shown to enhance remyelination in certain animal models. OBJECTIVE: To analyze feasibility of a novel q-space Myelin Map imaging to monitor demyelination and remyelination under FTY treatment in MS patients. METHODS: Treatment outcomes of 24 consecutive MS patients treated with FTY were analyzed...
January 5, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28069926/creatine-enhances-mitochondrial-mediated-oligodendrocyte-survival-following-demyelinating-injury
#10
Kelly A Chamberlain, Kristen S Chapey, Sonia E Nanescu, Jeffrey K Huang
: Chronic oligodendrocyte loss, which occurs in the demyelinating disorder multiple sclerosis (MS), contributes to axonal dysfunction and neurodegeneration. Current therapies are able to reduce MS severity, but do not prevent transition into the progressive phase of the disease, which is characterized by chronic neurodegeneration. Therefore, pharmacological compounds that promote oligodendrocyte survival could be beneficial for neuroprotection in MS. Here, we investigated the role of creatine, an organic acid involved in ATP buffering, in oligodendrocyte function...
January 9, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28069137/mitochondria-in-multiple-sclerosis-molecular-mechanisms-of-pathogenesis
#11
S Patergnani, V Fossati, M Bonora, C Giorgi, S Marchi, S Missiroli, T Rusielewicz, M R Wieckowski, P Pinton
Mitochondria, the organelles that function as the powerhouse of the cell, have been increasingly linked to the pathogenesis of many neurological disorders, including multiple sclerosis (MS). MS is a chronic inflammatory demyelinating disease of the central nervous system (CNS) and a leading cause of neurological disability in young adults in the western world. Its etiology remains unknown, and while the inflammatory component of MS has been heavily investigated and targeted for therapeutic intervention, the failure of remyelination and the process of axonal degeneration are still poorly understood...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28067783/stem-cell-transplantation-for-peripheral-nerve-regeneration-current-options-and-opportunities
#12
REVIEW
Liangfu Jiang, Salazar Jones, Xiaofeng Jia
Peripheral nerve regeneration is a complicated process highlighted by Wallerian degeneration, axonal sprouting, and remyelination. Schwann cells play an integral role in multiple facets of nerve regeneration but obtaining Schwann cells for cell-based therapy is limited by the invasive nature of harvesting and donor site morbidity. Stem cell transplantation for peripheral nerve regeneration offers an alternative cell-based therapy with several regenerative benefits. Stem cells have the potential to differentiate into Schwann-like cells that recruit macrophages for removal of cellular debris...
January 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28064059/par1-activation-affects-the-neurotrophic-properties-of-schwann-cells
#13
Elena Pompili, Cinzia Fabrizi, Francesca Somma, Virginia Correani, Bruno Maras, Maria Eugenia Schininà, Viviana Ciraci, Marco Artico, Francesco Fornai, Lorenzo Fumagalli
Protease-activated receptor-1 (PAR1) is the prototypic member of a family of four G-protein-coupled receptors that signal in response to extracellular proteases. In the peripheral nervous system, the expression and/or the role of PARs are still poorly investigated. High PAR1 mRNA expression was found in the rat dorsal root ganglia and the signal intensity of PAR1 mRNA increased in response to sciatic nerve transection. In the sciatic nerve, functional PAR1 receptor was reported at the level of non-compacted Schwann cell myelin microvilli of the nodes of Ranvier...
January 4, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28059711/t1-recovery-is-predominantly-found-in-black-holes-and-is-associated-with-clinical-improvement-in-patients-with-multiple-sclerosis
#14
C Thaler, T D Faizy, J Sedlacik, B Holst, K Stürner, C Heesen, J-P Stellmann, J Fiehler, S Siemonsen
BACKGROUND AND PURPOSE: Quantitative MR imaging parameters help to evaluate disease progression in multiple sclerosis and increase correlation with clinical disability. We therefore hypothesized that T1 values might be a marker for ongoing tissue damage or even remyelination and may help increase clinical correlation. MATERIALS AND METHODS: MR imaging was performed in 17 patients with relapsing-remitting MS at baseline and after 12 months of starting immunotherapy with dimethyl fumarate...
November 10, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28041882/lncrna-functional-networks-in-oligodendrocytes-reveal-stage-specific-myelination-control-by-an-lncol1-suz12-complex-in-the-cns
#15
Danyang He, Jincheng Wang, Yulan Lu, Yaqi Deng, Chuntao Zhao, Lingli Xu, Yinhuai Chen, Yueh-Chiang Hu, Wenhao Zhou, Q Richard Lu
Long noncoding RNAs (lncRNAs) are emerging as important regulators of cellular functions, but their roles in oligodendrocyte myelination remain undefined. Through de novo transcriptome reconstruction, we establish dynamic expression profiles of lncRNAs at different stages of oligodendrocyte development and uncover a cohort of stage-specific oligodendrocyte-restricted lncRNAs, including a conserved chromatin-associated lncOL1. Co-expression network analyses further define the association of distinct oligodendrocyte-expressing lncRNA clusters with protein-coding genes and predict lncRNA functions in oligodendrocyte myelination...
January 18, 2017: Neuron
https://www.readbyqxmd.com/read/28035961/stem-cells-and-labeling-for-spinal-cord-injury
#16
REVIEW
Marina Gazdic, Vladislav Volarevic, Aleksandar Arsenijevic, Slaven Erceg, Victoria Moreno-Manzano, Nebojsa Arsenijevic, Miodrag Stojkovic
Spinal cord injury (SCI) is a devastating condition that usually results in sudden and long-lasting locomotor and sensory neuron degeneration below the lesion site. During the last two decades, the search for new therapies has been revolutionized with the improved knowledge of stem cell (SC) biology. SCs therapy offers several attractive strategies for spinal cord repair. The transplantation of SCs promotes remyelination, neurite outgrowth and axonal elongation, and activates resident or transplanted progenitor cells across the lesion cavity...
December 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28035478/metformin-attenuates-cognitive-impairments-in-hypoxia-ischemia-neonatal-rats-via-improving-remyelination
#17
Boxiang Qi, Libao Hu, Lei Zhu, Lei Shang, Liping Sheng, Xuecheng Wang, Na Liu, Nana Wen, Xiaohe Yu, Qihong Wang, Yujia Yang
Perinatal hypoxia-ischemia (H/I) causes brain injury and myelination damage. Finding efficient methods to restore myelination is critical for the recovery of brain impairments. By applying an H/I rat model, we demonstrate that metformin (Met) treatment significantly ameliorates the loss of locomotor activity and cognition of H/I rat in the Morris water maze and open field task tests. After administration of Met to H/I rat, the proliferation of Olig2+ oligodendrocyte progenitor cells and the expression of myelin basic protein are obviously increased in the corpus callosum...
December 29, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28009439/sudan-black-a-fast-easy-and-non-toxic-method-to-assess-myelin-repair-in-demyelinating-diseases
#18
Benjamin V Ineichen, Oliver Weinmann, Nicolas Good, Patricia Plattner, Carla Wicki, Elisabeth J Rushing, Michael Linnebank, Martin E Schwab
AIMS: The search for novel drugs that enhance myelin repair in entities such as multiple sclerosis has top priority in neurological research, not least because remyelination can hinder further neurodegeneration in neuro-inflammatory conditions. Recently, several new compounds with the potential to boost remyelination have been identified using high-throughput in vitro screening methods. However, assessing their potential to enhance remyelination in vivo using plastic embedded semi-thin sections or electron microscopy, even though being the gold standard for assessing remyelination, is toxic, extremely time-consuming, and expensive...
December 23, 2016: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28002964/asymmetric-hydroboration-approach-to-the-scalable-synthesis-of-1r-3s-1-amino-3-r-6-hexyl-5-6-7-8-tetrahydronaphthalen-2-yl-cyclopentyl-methanol-bms-986104-as-a-potent-s1p1-receptor-modulator
#19
Michael G Yang, Zili Xiao, T G Murali Dhar, Hai-Yun Xiao, John L Gilmore, David Marcoux, Jenny H Xie, Kim W McIntyre, Tracy L Taylor, Virna Borowski, Elizabeth Heimrich, Yu-Wen Li, Jianlin Feng, Alda Fernandes, Zheng Yang, Praveen Balimane, Anthony M Marino, Georgia Cornelius, Bethanne M Warrack, Arvind Mathur, Dauh-Rurng Wu, Peng Li, Anuradha Gupta, Bala Pragalathan, Ding Ren Shen, Mary Ellen Cvijic, Lois D Lehman-McKeeman, Luisa Salter-Cid, Joel C Barrish, Percy H Carter, Alaric J Dyckman
We describe a highly efficient route for the synthesis of 4a (BMS-986104). A key step in the synthesis is the asymmetric hydroboration of trisubstituted alkene 6. Particularly given the known difficulties involved in this type of transformation (6 → 7), the current methodology provides an efficient approach to prepare this class of compounds. In addition, we disclose the efficacy of 4a in a mouse EAE model, which is comparable to 4c (FTY720). Mechanistically, 4a exhibited excellent remyelinating effects on lysophosphatidylcholine (LPC) induced demyelination in a three-dimensional brain cell culture assay...
December 22, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27988845/an-updated-histological-classification-system-for-multiple-sclerosis-lesions
#20
Tanja Kuhlmann, Samuel Ludwin, Alexandre Prat, Jack Antel, Wolfgang Brück, Hans Lassmann
Multiple sclerosis is a complex and heterogeneous, most likely autoimmune, demyelinating disease of the central nervous system (CNS). Although a number of histological classification systems for CNS lesions have been used by different groups in recent years, no uniform classification exists. In this paper, we propose a simple and unifying classification of MS lesions incorporating many elements of earlier histological systems that aims to provide guidelines for neuropathologists and researchers studying MS lesions to allow for better comparison of different studies performed with MS tissue, and to aid in understanding the pathogenesis of the disease...
January 2017: Acta Neuropathologica
keyword
keyword
13941
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"