DRUG REPOSITIONING FOR THERAPY OF COVID-19

2021 ◽  
Vol 1 (19) ◽  
pp. 209-211
Author(s):  
D.S. Druzhilovskiy ◽  
P.I. Savosina ◽  
O.A. Gomazkov ◽  
B.N. Sobolev ◽  
A.V. Veselovsky ◽  
...  

Drug repositioning – the discovery of new indications for the launched drugs – is the rapid natural response to viral infection SARS-CoV-2/COVID-19. We will consider the current state of research and development of repositioned pharmaceuticals for the therapy of COVID-19 using in silico and in vitro methods.

2013 ◽  
Vol 1 (2) ◽  
pp. 1-3
Author(s):  
João José Pinto Ferreira ◽  
Anne-Laure Mention ◽  
Marko Torkkeli

The expansion of human knowledge in all areas is largely the outcome of the activity of academic institutions and the result of their mission to contribute to the cultural, intellectual and economic development of the society, involving education, research and university extension activities. For many years, the academic community has been organizing itself in all different ways to respond to current and future needs, ensuring research integrity and recognition, and building on successive generations of peers to validate and support the launching and development of novel research streams. We owe the current state of research and development of our society to generations of scholars and scientists that have brought all of us here.(...)


Physiology ◽  
2006 ◽  
Vol 21 (4) ◽  
pp. 289-296 ◽  
Author(s):  
Sriram M. Ajay ◽  
Upinder S. Bhalla

Synaptic plasticity provides a record of neuronal activity and is a likely basis for memory. The early apparent simplicity of the process of synaptic plasticity has been lost in a flood of experimental data that now implicates some 200 signaling molecules in cellular memory. It is now clear that these signaling networks perform surprisingly sophisticated cellular decisions that weigh factors such as input patterns, location of stimulus, history of activity, and context. Computer models have followed experiments into this maze of molecular detail, often matching closely with their experimental counterparts, but perhaps losing simplicity in the process. Here, we suggest that the merger of models and experiment have begun to restore the earlier simplicity by outlining a few key functional roles for signaling networks in synaptic plasticity. In this review, we discuss the current state of understanding of synaptic plasticity in terms of models and experiments.


2021 ◽  
pp. 105300
Author(s):  
Jâmeson Ferreira da Silva ◽  
Dione Silva Corrêa ◽  
Érico Leite Campos ◽  
Giovana Zamprônio Leite ◽  
João Denis Medeiros de Oliveira ◽  
...  

Biomedicines ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 37 ◽  
Author(s):  
Zachary I. Stryker ◽  
Mehdi Rajabi ◽  
Paul J. Davis ◽  
Shaker A. Mousa

Angiogenesis assays allow for the evaluation of pro- or anti-angiogenic activity of endogenous or exogenous factors (stimulus or inhibitors) through investigation of their pro-or anti- proliferative, migratory, and tube formation effects on endothelial cells. To model the process of angiogenesis and the effects of biomolecules on that process, both in vitro and in vivo methods are currently used. In general, in vitro methods monitor specific stages in the angiogenesis process and are used for early evaluations, while in vivo methods more accurately simulate the living microenvironment to provide more pertinent information. We review here the current state of angiogenesis assays as well as their mechanisms, advantages, and limitations.


2020 ◽  
Vol 64 (9) ◽  
Author(s):  
Letícia Tiburcio Ferreira ◽  
Juliana Rodrigues ◽  
Gustavo Capatti Cassiano ◽  
Tatyana Almeida Tavella ◽  
Kaira Cristina Peralis Tomaz ◽  
...  

ABSTRACT Widespread resistance against antimalarial drugs thwarts current efforts for controlling the disease and urges the discovery of new effective treatments. Drug repositioning is increasingly becoming an attractive strategy since it can reduce costs, risks, and time-to-market. Herein, we have used this strategy to identify novel antimalarial hits. We used a comparative in silico chemogenomics approach to select Plasmodium falciparum and Plasmodium vivax proteins as potential drug targets and analyzed them using a computer-assisted drug repositioning pipeline to identify approved drugs with potential antimalarial activity. Among the seven drugs identified as promising antimalarial candidates, the anthracycline epirubicin was selected for further experimental validation. Epirubicin was shown to be potent in vitro against sensitive and multidrug-resistant P. falciparum strains and P. vivax field isolates in the nanomolar range, as well as being effective against an in vivo murine model of Plasmodium yoelii. Transmission-blocking activity was observed for epirubicin in vitro and in vivo. Finally, using yeast-based haploinsufficiency chemical genomic profiling, we aimed to get insights into the mechanism of action of epirubicin. Beyond the target predicted in silico (a DNA gyrase in the apicoplast), functional assays suggested a GlcNac-1-P-transferase (GPT) enzyme as a potential target. Docking calculations predicted the binding mode of epirubicin with DNA gyrase and GPT proteins. Epirubicin is originally an antitumoral agent and presents associated toxicity. However, its antiplasmodial activity against not only P. falciparum but also P. vivax in different stages of the parasite life cycle supports the use of this drug as a scaffold for hit-to-lead optimization in malaria drug discovery.


2017 ◽  
Vol 86 (3) ◽  
pp. 237
Author(s):  
Małgorzata Agnieszka Szczepańska ◽  
Paweł P. Jagodziński ◽  
Ewa Wender‑Ożegowska

An ovarian endometrioma is a very common form of endometriosis in women of reproductive age. This review presents the current state of research on ovarian reserve in women with ovarian endometriomas. Endometrioma can negatively affect ovarian markers: the anti‑Müllerian hormone (AMH), antral follicle count (AFC) and in vitro fertilisation (IVF) results. Decisions on the surgical treatment of endometrial cysts should be carefully thought through, especially in women who have not given birth.


2015 ◽  
Vol 8 (3) ◽  
pp. 95-105 ◽  
Author(s):  
Sivakumar Prasanth Kumar ◽  
Vilas R. Parmar ◽  
Yogesh T. Jasrai ◽  
Himanshu A. Pandya

2021 ◽  
Vol 22 (21) ◽  
pp. 11807
Author(s):  
Janet Juarez-Escobar ◽  
Esaú Bojórquez-Velázquez ◽  
Jose M. Elizalde-Contreras ◽  
José A. Guerrero-Analco ◽  
Víctor M. Loyola-Vargas ◽  
...  

Embryogenesis is the primary developmental program in plants. The mechanisms that underlie the regulation of embryogenesis are an essential research subject given its potential contribution to mass in vitro propagation of profitable plant species. Somatic embryogenesis (SE) refers to the use of in vitro techniques to mimic the sexual reproduction program known as zygotic embryogenesis (ZE). In this review, we synthesize the current state of research on proteomic and metabolomic studies of SE and ZE in angiosperms (monocots and dicots) and gymnosperms. The most striking finding was the small number of studies addressing ZE. Meanwhile, the research effort focused on SE has been substantial but disjointed. Together, these research gaps may explain why the embryogenic induction stage and the maturation of the somatic embryo continue to be bottlenecks for efficient and large-scale regeneration of plants. Comprehensive and integrative studies of both SE and ZE are needed to provide the molecular foundation of plant embryogenesis, information which is needed to rationally guide experimental strategies to solve SE drawbacks in each species.


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