Staff Profile
Dr Tim Cheek
Dean of Postgraduate Research
- Email: [email protected]
- Telephone: +44 (0) 191 208 7010
- Fax: +44 (0) 191 208 7424
- Address: Biosciences Institute
The Medical School
Newcastle University
Framlington Place
Newcastle upon Tyne NE2 4HH
UK
Roles and Responsibilities
Dean of Postgraduate Research
Qualifications
BSc (Hons), Sheffield City Polytechnic (CNAA) 1984
PhD, University of Liverpool 1987
Previous Positions
Post-doctoral Researcher, Department of Zoology, University of Cambridge 1987-1998
(Royal Society University Research Fellow, 1992-96; Official Fellow, Girton College 1996-1998)
Newcastle University 1998-present
Research Interests
The mechanisms and functions of intracellular Ca2 signals. Specifically the role of Ca2 signals in electrically excitable (neuronal) cell types.
Current work
Ca2 signalling in neuronal development
Neurones in the brain are the result of differentiation of neuronal stem cells during development. One of the goals in modern neurobiology is to understand the molecular mechanisms controlling neuronal differentiation, as the ability to produce neurones in vitro will have enormous implications for treatment of neurological disorders and age-related neurodegenerative diseases. Stimulus-induced changes in the concentration of intracellular fee Ca2 underlie many aspects of neuronal cell function, including differentiation, and Ca2 signalling dysfunction has been implicated in a number neurological diseases and disorders.
Our group discovered that the switch from proliferation to differentiation in human neuroblastoma cells is accompanied by a switch in two key Ca2 signalling pathways; one pathway (store-operated Ca2 entry) becomes down-regulated, while there is a functional upregulation of a non-store-operated pathway.
We are using a combination of molecular, biochemical and cellular techniques to understand the molecular mechanisms that coordinate the switch in Ca2 signalling pathways and to unravel the role that the switch plays in driving and maintaining the differentiation response.
Funding
Research in our laboratory is funded by the MRC, the BBSRC and the Wellcome Trust.
Undergraduate
BSc (Hons) - Stage 1, Stage 2, Stage 3
BDS - Stage 1
MBBS - Stage 1, Stage 2
Accelerated MBBS - Stage 1
- Hudson L, Begg M, Wright B, Cheek TR, Jahoda CAB, Reynolds NJ. Dominant effect of gap junction communication in wound-induced calcium wave, NFAT activation and wound closure in keratinocytes. Journal of Cellular Physiology 2021, 236(12), 8171-8183.
- Whitworth CL, Redfern CPF, Cheek TR. Differentiation-induced remodelling of store-operated calcium entry is independent of neuronal or glial phenotype but modulated by cellular context. Molecular Neurobiology 2019, 56(2), 857-872.
- Edwards N, Anderson CMH, Conlon NJ, Watson AK, Hall RJ, Cheek TR, Embley TM, Thwaites DT. Resculpting the binding pocket of APC superfamily LeuT-fold amino acid transporters. Cellular and Molecular Life Sciences 2018, 75(5), 921-938.
- Bell N, Hann V, Redfern CPF, Cheek TR. Store-operated Ca2+ entry in proliferating and retinoic acid-differentiated N- and S-type neuroblastoma cells. Biochimica et Biophysica Acta: Molecular Cell Research 2013, 1833(3), 643-651.
- Conlon NJ, Edwards N, Anderson CMH, Cheek TR, Thwaites DT. Rheogenic amino acid transport by Drosophila CG4991 of the Amino Acid Auxin Permease (AAAP) transporter family. FASEB Journal 2013, 27, 732-735.
- Heer R, Clarke N, Rigas AC, Cheek TR, Pickard R, Leung HY. Phenotypic Modulation of Human Urinary Tract Stroma-derived Fibroblasts by Transforming Growth Factor β3. Urology 2010, 76(2), 509.e13-509.e20.
- Sattelle DB, Cordova D, Cheek TR. Insect ryanodine receptors: Molecular targets for novel pest control chemicals. Invertebrate Neuroscience 2008, 8(3), 107-119.
- Tottey S, Waldron KJ, Firbank SJ, Reale B, Bessant C, Sato K, Cheek TR, Gray J, Banfield MJ, Dennison C, Robinson NJ. Protein-folding location can regulate manganese-binding versus copper- or zinc-binding. Nature 2008, 455(7216), 1138-1142.
- Riddoch, F.C., Brown, A.M., Rowbotham, S.E., Redfern, C.P.F., Cheek, T.R. Changes in functional properties of the caffeine-sensitive Ca2+ store during differentiation of human SH-SY5Y neuroblastoma cells. Cell Calcium 2007, 41(3), 195-206.
- Clarke N, Heer R, Cheek T, Leung T, Pickard R. Changing the phenotype of urethral stroma by treatment with transforming growth factor beta-3. European Urology Supplements 2007, 6(2), 138-138.
- Cheek TR, Thorn P. A constitutively active nonselective cation conductance underlies resting Ca2+ influx and secretion in bovine adrenal chromaffin cells. Cell Calcium 2006, 40(3), 309-318.
- Brown, A.M., Riddoch, F.C, Robson, A., Redfern, C.P.F., Cheek, T.R. Mechanistic and functional changes in Ca2+ entry after retinoic acid-induced differentiation of neuroblastoma cells. Biochemical Journal 2005, 388(3), 941-948.
- Riddoch, F.C., Rowbotham, S.E., Brown, A.M., Redfern, C.P.F., Cheek, T.R. Release and sequestration of Ca2+ by a caffeine- and ryanodine-sensitive store in a sub-population of human SH-SY5Y neuroblastoma cells. Cell Calcium 2005, 38(2), 111-120.
- Brown AM, Riddoch FC, Redfern CPF, Cheek TR. Changes in Ca2+ entry mechanisms following retinoic acid-induced differentiation of neuroblastoma cells. In: Meeting of the Physiological Society. 2002, University of Leeds, Leeds, England: Journal of Physiology: The Physiological Society.