The interaction of a β2 adrenoceptor agonist drug with biomimetic cell membrane models: The case of terbutaline sulphate

Life Sciences ◽  
2021 ◽  
pp. 119992
Author(s):  
Joana A. Loureiro ◽  
Stephanie Andrade ◽  
Maria João Ramalho ◽  
Nuno Oliveira ◽  
Maria Carmo Pereira
Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 945
Author(s):  
Qiong Wang ◽  
Ning Hu ◽  
Jincan Lei ◽  
Qiurong Qing ◽  
Jing Huang ◽  
...  

Lipid vesicles, especially giant lipid vesicles (GLVs), are usually adopted as cell membrane models and their preparation has been widely studied. However, the effects of some nonelectrolytes on GLV formation have not been specifically studied so far. In this paper, the effects of the nonelectrolytes, including sucrose, glucose, sorbitol and ethanol, and their coexistence with sodium chloride, on the lipid hydration and GLV formation were investigated. With the hydration method, it was found that the sucrose, glucose and sorbitol showed almost the same effect. Their presence in the medium enhanced the hydrodynamic force on the lipid membranes, promoting the GLV formation. GLV formation was also promoted by the presence of ethanol with ethanol volume fraction in the range of 0 to 20 percent, but higher ethanol content resulted in failure of GLV formation. However, the participation of sodium chloride in sugar solution and ethanol solution stabilized the lipid membranes, suppressing the GLV formation. In addition, the ethanol and the sodium chloride showed the completely opposite effects on lipid hydration. These results could provide some suggestions for the efficient preparation of GLVs.


2015 ◽  
Vol 45 (3) ◽  
pp. 219-227 ◽  
Author(s):  
Gustavo G. Parra ◽  
Galina Borissevitch ◽  
Iouri Borissevitch ◽  
Ana P. Ramos

Membranes ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 141
Author(s):  
Marina Pinheiro ◽  
Heinz Amenitsch ◽  
Salette Reis

This work focuses on the interaction of the novel and representative antituberculosis (anti-TB) drug bedaquiline (BDQ) with different membrane models of eukaryotic and prokaryotic cells. The effect of BDQ on eukaryotic cell membrane models was assessed using liposomes, namely, multilamellar vesicles (MLVs) made of 1,2-dimyristoyl-rac-glycero-3-phosphocholine (DMPC) and also a mixture of DMPC and cholesterol (CHOL) (8:2 molar ratio). To mimic the prokaryotic cell membrane, 1,2-dimyristoyl-sn-glycero-3-phospho-rac-(1-glycerol) (DMPG) and 1,1′2,2′-tetra-oleoyl-cardiolipin (TOCL) were chosen. Powerful biophysical techniques were employed, including small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS), to understand the effect of BDQ on the nanostructure of the membrane models. The results showed that BDQ demonstrated a pronounced disordering effect in the bacterial cell membrane models, especially in the membrane model with cardiolipin (CL), while the human cell membrane model with large fractions of neutral phospholipids remained less affected. The membrane models and techniques provide detailed information about different aspects of the drug–membrane interaction, thus offering valuable information to better understand the effect of BDQ on their target membrane-associated enzyme as well as its side effects on the cardiovascular system.


2020 ◽  
Vol 192 ◽  
pp. 111048 ◽  
Author(s):  
Rafael de Oliveira Pedro ◽  
Andressa Ribeiro Pereira ◽  
Osvaldo N. Oliveira ◽  
Paulo Barbeitas Miranda

2015 ◽  
Vol 207 ◽  
pp. 7-12 ◽  
Author(s):  
Giulia E.G. Gonçalves ◽  
Fernanda S. de Souza ◽  
João Henrique G. Lago ◽  
Luciano Caseli

2007 ◽  
Vol 8 (5) ◽  
pp. 1633-1640 ◽  
Author(s):  
Felippe J. Pavinatto ◽  
Adriana Pavinatto ◽  
Luciano Caseli ◽  
David S. dos Santos, ◽  
Thatyane M. Nobre ◽  
...  

2005 ◽  
Vol 38 (4) ◽  
pp. 292-298 ◽  
Author(s):  
David Bongiorno ◽  
Leopoldo Ceraulo ◽  
Mirella Ferrugia ◽  
Felice Filizzola ◽  
Angela Ruggirello ◽  
...  

2021 ◽  
Vol 46 (1SI) ◽  
pp. 18-29
Author(s):  
Andressa Ribeiro Pereira ◽  
Osvaldo Novais de Oliveira Junior

Understanding the role of biomolecules in cells at the molecular level has been the trade of Prof. Marcio Francisco Colombo and Prof. Jo�o Ruggiero Neto in their carriers, which is why it was found appropriate to address the use of Langmuir monolayers as cell membrane models in this special issue. In the review paper, we elaborate upon the reasons why Langmuir monolayers are good models with the possible control of membrane composition and molecular packing. After describing several experimental methods to characterize the Langmuir monolayers, we discuss selected results from the last five years where monolayers were made to interact with pharmaceutical drugs, emerging pollutants and other biologically-relevant molecules. The challenges to take the field forward are also commented upon.


2020 ◽  
Vol 194 ◽  
pp. 111189 ◽  
Author(s):  
Sabrina A. Camacho ◽  
Mirella B. Kobal ◽  
Alexandre M. Almeida ◽  
Karina A. Toledo ◽  
Osvaldo N. Oliveira ◽  
...  

2018 ◽  
Vol 20 (47) ◽  
pp. 29764-29777 ◽  
Author(s):  
Carlos M. N. Mendonça ◽  
Debora T. Balogh ◽  
Simone C. Barbosa ◽  
Tânia E. Sintra ◽  
Sónia P. M. Ventura ◽  
...  

IL–phospholipid interactions were studied using Langmuir monolayers and molecular simulations.


Sign in / Sign up

Export Citation Format

Share Document