scholarly journals Faculty Opinions recommendation of A genetically encoded biosensor reveals location bias of opioid drug action.

Author(s):  
Emmanuel Darcq
2018 ◽  
Author(s):  
Miriam Stoeber ◽  
Damien Jullie ◽  
Toon Laeremans ◽  
Jan Steyaert ◽  
Peter W. Schiller ◽  
...  

SummaryOpioid receptors (ORs) precisely modulate behavior when activated by native peptide ligands but distort behaviors to produce pathology when activated by non-peptide drugs. A fundamental question is how drugs differ from peptides in their actions on target neurons. One way that drugs can differ is by imposing selective effects on the conformational equilibrium of individual ORs. We wondered if drugs can also impose selective effects on the location of OR activation in individual OR-expressing neurons. Here we develop a genetically encoded biosensor that directly localizes ligand-induced activation and deactivation of ORs in living cells, and use it to generate the first real-time map of the spatiotemporal organization of μ‐ and δ-OR activation in neurons. Peptide agonists produce a characteristic activation pattern initiated in the plasma membrane and propagating to endosomes after receptor internalization. Drugs produce a different activation pattern by uniquely driving OR activation in the somatic Golgi apparatus and extending throughout the dendritic arbor in Golgi outposts. These results demonstrate a new approach to probe the cellular basis of neuromodulation and reveal that drugs profoundly distort the spatiotemporal landscape of neuronal OR activation.


Neuron ◽  
2018 ◽  
Vol 98 (5) ◽  
pp. 963-976.e5 ◽  
Author(s):  
Miriam Stoeber ◽  
Damien Jullié ◽  
Braden T. Lobingier ◽  
Toon Laeremans ◽  
Jan Steyaert ◽  
...  

2018 ◽  
Vol 25 (24) ◽  
pp. 2764-2782 ◽  
Author(s):  
Erica Valencic ◽  
Alenka Smid ◽  
Ziga Jakopin ◽  
Alberto Tommasini ◽  
Irena Mlinaric-Rascan

Human primary immunodeficiency diseases (PIDs) are a large group of rare diseases and are characterized by a great genetic and phenotypic heterogeneity. A large subset of PIDs is genetically defined, which has a crucial impact for the understanding of the molecular basis of disease and the development of precision medicine. <p> Discovery and development of new therapies for rare diseases has long been de-privileged due to the length and cost of the processes involved. Interest has increased due to stimulatory regulatory and supportive reimbursement environments enabling viable business models. <p> Advancements in biomedical and computational sciences enable the development of rational, designed approaches for identification of novel indications of already approved drugs allowing faster delivery of new medicines. Drug repositioning is based either on clinical analogies of diseases or on understanding of the molecular mode of drug action and mechanisms of the disease. All of these are the basis for the development of precision medicine.


2015 ◽  
Vol 13 (10) ◽  
pp. 1722-1739 ◽  
Author(s):  
Niki Antypa ◽  
Raffaella Calati ◽  
Alessandro Serretti

2021 ◽  
Author(s):  
Wenbo Zhang ◽  
Xiaoying Li ◽  
Xiaolei Zhang ◽  
Yan Dong ◽  
Lianghai Hu

Quantitative proteomics combined with thermostability assay provide a novel strategy for the study of mechanisms on drug action and resistance.


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