کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10153643 | 1666215 | 2018 | 41 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Metaplasticity at the addicted tetrapartite synapse: A common denominator of drug induced adaptations and potential treatment target for addiction
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کلمات کلیدی
MMPrTMSCPPPFCAGS3BLANACNIBSMSNCaMKIItDCSbasolateral amygdala - amygdala basolateralCa2+/calmodulin-dependent protein kinase II - Ca2 + / calmodulin وابسته پروتئین کیناز IIcAMP - cAMPCyclic adenosine monophosphate - آدنوزین مونوفسفات Cyclicadenylate cyclase - آدنیلات سیکلاسAddiction - اعتیاد long term depression - افسردگی بلند مدتTranscranial direct current stimulation - تحرک جریان مستقیم TranscranialNon-invasive brain stimulation - تحریک مغزی غیر تهاجمیTranscranial magnetic stimulation - تحریک مغناطیسی مغزconditioned place preference - ترجیح محل موظف استlong term potentiation - تقویت طولانی مدتLTP - تقویت طولانی مدت یا LTP self-administration - خود ادارهprefrontal cortex - قشر prefrontalmatrix metalloproteinase - ماتریکس متالوپروتئینازmetaplasticity - متاپلستیکLTD - محدودmedium spiny neuron - نورون ستون فقرات متوسطNucleus accumbens - هسته accumbensProtein kinase - پروتئین کینازSynaptic plasticity - پلاستیسیته سیناپسیglutamate - گلوتامات
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In light of the current worldwide addiction epidemic, the need for successful therapies is more urgent than ever. Although we made substantial progress in our basic understanding of addiction, reliable therapies are lacking. Since 40-60% of patients treated for substance use disorder return to active substance use within a year following treatment discharge, alleviating the vulnerability to relapse is regarded as the most promising avenue for addiction therapy. Preclinical addiction research often focuses on maladaptive synaptic plasticity within the reward pathway. However, drug induced neuroadaptations do not only lead to a strengthening of distinct drug associated cues and drug conditioned behaviors, but also seem to increase plasticity thresholds for environmental stimuli that are not associated with the drug. This form of higher order plasticity, or synaptic metaplasticity, is not expressed as a change in the efficacy of synaptic transmission but as a change in the direction or degree of plasticity induced by a distinct stimulation pattern. Experimental addiction research has demonstrated metaplasticity after exposure to multiple classes of addictive drugs. In this review we will focus on the concept of synaptic metaplasticity in the context of preclinical addiction research. We will take a closer look at the tetrapartite glutamatergic synapse and outline forms of metaplasticity that have been described at the addicted synapse. Finally we will discuss the different potential avenues for pharmacotherapies that target glutamatergic synaptic plasticity and metaplasticity. Here we will argue that aberrant metaplasticity renders the reward seeking circuitry more rigid and hence less able to adapt to changing environmental contingencies. An understanding of the molecular mechanisms that underlie this metaplasticity is crucial for the development of new strategies for addiction therapy. The correction of drug-induced metaplasticity could be used to support behavioral and pharmacotherapies for the treatment of addiction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurobiology of Learning and Memory - Volume 154, October 2018, Pages 97-111
Journal: Neurobiology of Learning and Memory - Volume 154, October 2018, Pages 97-111
نویسندگان
Daniela Neuhofer, Peter Kalivas,