1. Molecular Targeting and Polymer Toxicology Group, School of Pharmacy, University of Brighton, Brighton BN2 4GJ, UK.
2. Cancer Research UK, Tumour Cytokine Biology Group, Wolfson Digestive Diseases Centre, University Hospital, Nottingham NG7 2UH, UK.
3. Nencki Insitute of Experimental Biology, Laboratory of Intracellular Ion Channels, Polish Academy of Sciences, Warsaw, Poland.