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Insights into ligand expression heterogeneity across multiple cell types in the adult forebrain that regulates neural stem cell behavior

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Neural Regeneration Research 2019年第8期14卷 1369-1371页

作者： Rainer Akkermann kasum azim Department of Neurology and Neuroregeneration Medical FacultyHeinrich-Heine-University

In the adult mammalian central nervous system (CNS), neural cell generation is restricted to two highly specialized germinal niches. These are the subventricular zone (SVZ) that borders the forebrain lateral ventricles and the subgranular zone of the hippocampus. In the case of the former niche, the SVZ gives rise daily to thousands of migratory neuroblasts that travel long distances to the olfactory bulb via the rostral migratory stream. Neural stem cells (NSCs) first engage through a sequence of activation phe no types and give rise to transiently amplifying progenitors (TAPs) that subsequently differentiate into neuroblasts. Once in the olfactory bulb, they generate phenotypically distinct neurons. Most of these constitute the interneuron class that is preferentially derived from the lateral portion of the SVZ, whilst a small proportion of projection neurons are also formed from the dorsal SVZ.

关键词： Insights ligand expression cell behavior

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Resolving the age-related decline in central nervous system myelin turnover and drug discovery for oligodendroglial rejuvenation

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Neural Regeneration Research 2022年第12期17卷 2677-2678页

作者： Andrea Domenico Rivera Arthur Morgan Butt kasum azim Institute of Biomedical and Biomolecular Sciences School of Pharmacy and Biomedical ScienceUniversity of PortsmouthPortsmouthUK Section of Human Anatomy Department of NeuroscienceUniversity of PaduaPaduaItaly Department of Neurology Medical FacultyHeinrich-Heine-UniversityDüsseldorfGermany

Myel i n genes are amongst the most dysregulated genes in the aged brain:Just over half of the weight of an entire adult human brain is attributed to myelin,which wraps around neuronal axons and is essential for superfast axonal conduction and neuronal *** the central nervous system,it is the function of specialized cells called oligodendrocytes(OLs)to make myelin,which is made up of lipids and *** are generated throughout life by a significant population of oligodendrocyte progenitor cells(OPCs)that are responsible for the lifelong generation of OLs and myelin,essential for learning,as well as repair following pathological insults(*** demyelinating diseases that include multiple sclerosis)(Simons and Nave,2015;Philips and Rothstein,2017).Changes in myelin content in the human brain over the lifespan of individuals have been well documented,as well as evidence of myelin loss in rodent models using classical histological approaches(Bartzokis et al.,2012;Soreq et al.,2017).

关键词： myelin system specialized

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Next generation drug connectivity mapping for acquiring therapeutic agents to differentially regulate myelination

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Neural Regeneration Research 2023年第4期18卷 797-798页

作者： kasum azim Andrea Domenico Rivera Arthur Morgan Butt Department of Neurology Medical FacultyHeinrich-Heine-UniversityDüsseldorfGermany Institute of Biomedical and Biomolecular Sciences School of Pharmacy and Biomedical ScienceUniversity of PortsmouthSt Michael’s BuildingWhite Swan RoadPortsmouthUK Section of Human Anatomy Department of NeuroscienceUniversity of PaduaPaduaItaly

The need for new therapeutic approaches:Conventional drug discovery is a lengthy and expensive process,taking decades and billions of dollars to get a drug from bench to *** of the costs incurred are at the pre-clinical stages,between drug design and synthesis to delineating the cellular“Mechanisms of Action”(MoA).Notably,there is a very high risk of failure,and only a very small proportion of therapeutic agents reach later-phase clinical ***,drug repositioning has become a valuable strategy aimed at fast-tracking treatments into clinical use and improving the chances of therapeutic success.A novel addition to this approach is connectivity mapping,which defines cell-specific transcriptional responses to small molecules in disease-dependent *** commentary outlines how some of the latest innovations in connectivity mapping can be exploited for drug repurposing.

关键词： connectivity dollar therapeutic

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