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Dr Donald Ward, Prof A Canfield
Applications accepted all year round
Self-Funded PhD Students Only
About the Project
The regulation of parathyroid hormone (PTH) secretion is of fundamental importance for calcium homeostasis and in mineral conditions affecting bone and the kidneys. Whilst it is clear that the calcium-sensing receptor (CaR) represents the key controller of PTH secretion by suppressing its secretion, the way the CaR works remains unclear. Indeed, it is still not clear how elevated intracellular calcium concentration (Ca2+i) appears to suppress PTH secretion in parathyroid gland while stimulating hormone / neurotransmitter secretion in many other cell-types. Furthermore, the pulsatility of PTH secretion, which is vital for bone formation, remains poorly understood. Therefore, this project aims to shed light on both the basic physiology of mammalian calcium homeostasis as well as helping us to understand the development of osteoporosis and CKD-MBD (bone mineral disease of chronic kidney disease). This project involves live cell imaging (including intracellular calcium imaging) as well as cell transfection with receptors, signalling modulators and siRNAs for selectively knocking down expression of CaR signal regulators.
Funding Notes
To apply for this PhD project please see:
http://www.ls.manchester.ac.uk/phdprogrammes/howtoapply
Also see our International Brochure http://www.ls.manchester.ac.uk/phdprogrammes/internationalbiosciences
http://www.ls.manchester.ac.uk/phdprogrammes/howtoapply
Also see our International Brochure http://www.ls.manchester.ac.uk/phdprogrammes/internationalbiosciences
References
[1] Lazarus S, Pretorius C, Khafagi F, Campion KL, Brennan SC, Conigrave AD, Brown EM, Ward DT (2011) A novel mutation of the primary protein kinase C phosphorylation site in the calcium-sensing receptor causes autosomal dominant hypocalcemia. European Journal of Endocrinology 164, 429–435.
[2] McCormick WD, Atkinson-Dell R, Campion KL, Mun H-C, Conigrave AD, Ward DT (2010) Increased Receptor Stimulation Elicits Differential Calcium-Sensing ReceptorT888 Dephosphorylation. Journal of Biological Chemistry 285, 14170-14177.
[3] Davies SL, Ozawa A, McCormick WD, Dvorak MM, Ward DT (2007) Protein kinase C-mediated phosphorylation of the Ca2+-sensing receptor is stimulated by receptor activation and attenuated by calyculin-sensitive phosphatase activity. Journal of Biological Chemistry 282, 15048-15056.
[4] Ward DT, Riccardi D (2012) New concepts in calcium-sensing receptor pharmacology and signalling. (Review) British Journal of Pharmacology 165, 35-48.
[2] McCormick WD, Atkinson-Dell R, Campion KL, Mun H-C, Conigrave AD, Ward DT (2010) Increased Receptor Stimulation Elicits Differential Calcium-Sensing ReceptorT888 Dephosphorylation. Journal of Biological Chemistry 285, 14170-14177.
[3] Davies SL, Ozawa A, McCormick WD, Dvorak MM, Ward DT (2007) Protein kinase C-mediated phosphorylation of the Ca2+-sensing receptor is stimulated by receptor activation and attenuated by calyculin-sensitive phosphatase activity. Journal of Biological Chemistry 282, 15048-15056.
[4] Ward DT, Riccardi D (2012) New concepts in calcium-sensing receptor pharmacology and signalling. (Review) British Journal of Pharmacology 165, 35-48.
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