1. Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK.
2. The CRUK Beatson Institute, Glasgow G61 1BD, UK.
3. Cancer Biology and Therapy Lab, Division of Human Sciences, School of Applied Sciences, London South Bank University, London SE1 0AA, UK.
4. Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt.
5. Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Houston, TX 77054, USA.