[HTML][HTML] VX-809 and related corrector compounds exhibit secondary activity stabilizing active F508del-CFTR after its partial rescue to the cell surface

PDW Eckford, M Ramjeesingh, S Molinski, S Pasyk… - Chemistry & biology, 2014 - cell.com
The most common mutation causing cystic fibrosis (CF), F508del, impairs conformational
maturation of CF transmembrane conductance regulator (CFTR), thereby reducing its …

Synergy of cAMP and calcium signaling pathways in CFTR regulation

…, TH Kim, K Du, M Di Paola, S Pasyk… - Proceedings of the …, 2017 - National Acad Sciences
Cystic fibrosis results from mutations in the cystic fibrosis transmembrane conductance
regulator (CFTR) chloride channel, leading to defective apical chloride transport. Patients also …

A small-molecule modulator interacts directly with ΔPhe508-CFTR to modify its ATPase activity and conformational stability

L Wellhauser, PK Chiaw, S Pasyk, C Li… - Molecular …, 2009 - ASPET
The deletion of Phe-508 (ΔPhe508) constitutes the most prevalent of a number of mutations
in the cystic fibrosis transmembrane conductance regulator (CFTR) that cause cystic fibrosis (…

[HTML][HTML] Sphingosine-1-phosphate is a novel regulator of cystic fibrosis transmembrane conductance regulator (CFTR) activity

…, A Meissner, I Semenkov, S Molinski, S Pasyk… - PLoS …, 2015 - journals.plos.org
The cystic fibrosis transmembrane conductance regulator (CFTR) attenuates sphingosine-1-phosphate
(S1P) signaling in resistance arteries and has emerged as a prominent regulator …

[HTML][HTML] Functional rescue of F508del-CFTR using small molecule correctors

S Molinski, PDW Eckford, S Pasyk, S Ahmadi… - Frontiers in …, 2012 - frontiersin.org
High-throughput screens for small molecules that are effective in “correcting” the functional
expression of F508del-CFTR have yielded several promising hits. Two such compounds are …

Molecular basis for the ATPase activity of CFTR

JC Cheung, PK Chiaw, S Pasyk, CE Bear - Archives of biochemistry and …, 2008 - Elsevier
CFTR is a member of the ABC (ATP binding cassette) superfamily of transporters. It is a
multidomain membrane protein, which utilizes ATP to regulate the flux of its substrate through the …

[PDF][PDF] Direct Interaction Of A Small Molecule Modulator With G551D-CFTR, A Cystic Fibrosis Causing Mutation Associated With Severe Disease

S Pasyk, C Li, M Ramjeesingh, CE Bear - Biophysical Journal, 2009 - cell.com
Next we investigated whether addition of 5 mM L-arginine affects the activation of a2-adrenoceptors.
It was shown that in the presence of a2-adrenoceptor antagonists-yohimbine (10 …

The major cystic fibrosis causing mutation exhibits defective propensity for phosphorylation

S Pasyk, S Molinski, S Ahmadi, M Ramjeesingh… - …, 2015 - Wiley Online Library
The major cystic fibrosis causing mutation, F508del‐CFTR (where CFTR is cystic fibrosis
transmembrane conductance regulator), impairs biosynthetic maturation of the CFTR protein, …

Identification and validation of hits from high throughput screens for CFTR modulators

S Pasyk, S Molinski, W Yu… - Current …, 2012 - ingentaconnect.com
These are exciting times with the appearance of small molecule compounds in clinical trials
which target the basic defects caused by mutation in the CFTR gene. This progress was …

Quantification of collateral resistance in acute and chronic experimental coronary occlusion in the dog.

…, G Neugebauer, M Carl, S Pasyk - Circulation …, 1976 - Am Heart Assoc
The resistance to coronary blood flow in various parts of the myocardium was studied with
the tracer microspheres technique before and immediately after an acute coronary occlusion …