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Academic

Dr John Winpenny

John Winpenny
Job Title Contact Location
Lecturer  John dot Winpenny at uea dot ac dot uk
Tel: +44 (0)1603 59 1256  
 
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Career

  • 1988-1991 Wellcome Trust Postgraduate Research Assistant, Department of Anatomy and Physiology, University of Dundee.
  • 1992 Temporary Postgraduate Research Assistant, Department of Anatomy and Physiology, University of Dundee.
  • 1992-1996 Cystic Fibrosis Trust Postdoctoral Research Associate, Department of Physiological Sciences, University of Newcastle upon Tyne.
  • 1996-1999 Wellcome Trust Advanced Training Fellow, Department of Physiological Sciences, University of Newcastle upon Tyne and The Eppley Institute, University of Nebraska Medical Center, Omaha, Nebraska, USA.
  • 1999-2004 Senior Lecturer in Physiology, Sunderland Pharmacy School, School of Health, Natural & Social Sciences, University of Sunderland.
  • 2004-present Lecturer in Physiology, School of Medicine, Health Policy & Practice, University of East Anglia, Norwich.

Academic Background

  • 1984-1988 BSc (Hons), Physiology (2ii), University of Dundee.
  • 1988-1992 PhD (Physiology), University of Dundee.

Key Research Interests

  • My laboratory is interested in investigating the distribution, function and regulation of chloride ion channels. In particular the laboratory is interested in calcium-activated chloride channels as research from my lab and others has shown that they can functionally replace the defective chloride channel that results in cystic fibrosis. This has led to the hypothesis that alternative chloride ion channels could be a potential therapeutic pathway for cystic fibrosis.
  • Several molecular candidates for calcium-sensitive chloride channels from bovine, mouse and human tissues has now been reported. These include the CLCA gene family, the bestrophin gene family and the tweety gene family. I have been involved in several projects to look at the CLCA gene family. In collaboration with my colleague, Dr Paul Chazot (University of Durham), we have developed anti-mCLCA3 antibodies to investigate the tissue distribution of this putative chloride ion channel in mouse. We have shown that mCLCA3 is expressed in tissues that are affected in CF and asthma. As a follow on from the epithelial work we have also investigated the neuronal tissue expression of mCLCA3 in mice.
  • I am presently involved in a project to investigate the various endogenous signalling pathways that may be involved in the activation of calcium-activated chloride channels in pancreatic duct cells, using the CFPAC cell line as a model. This research has identified for the first time the expression of the bestrophin protein family in pancreatic duct cells. It is also looking at potential pharmacological compounds that may activate these channels.
  • My laboratory uses the following research techniques:
    • Culture of appropriate cell lines  (e.g. CFPAC-1, HPAF, HCN-2, neuronal primary cultures)
    • Electrophysiology (including Patch clamp - both whole cell and single channel and two electrode voltage clamp of Xenopus oocytes)
    • Iodide Efflux assays
    • Antibodies for distribution studies (Dr Paul Chazot) and general molecular biology techniques

Research Group Members

  • Miss Laura Marsey, Cystic Fibrosis Trust PhD student (Aug 2003 – September 2007) “Molecular and functional investigations of the calcium-activated chloride channel in cystic fibrosis pancreatic duct cells”. (Successfully completed)
  • Dr Sangeeta Pathak, MD student (July 2007-June 2009) “Placental correlates of pregnancy and neonatal outcomes”.
Research Groups Airway Inflammation Research group

Teaching Interests

MBBS Medical Degree Course

  • Delivery of lectures and seminars in Physiology to all 5 years.
  • Delivery of consultation skills teaching to Year 1 students.
  • Supervision of 4th & 5th year research project students.
  • Year 1 PBL Tutor.
  • Student Selected Study (SSS) Physiology Tutor (Years 1 & 3).
  • MBBS student personal advisor.

     

    BSc (Biomedicine) Degree Course

  • Delivery of seminars for BIO-2B05 (Human Physiology).
  • Ad-hoc delivery of seminars/lectures for BIO-1A5Y (Introduction to Biomedicine) & BIO-1A58 (Foundations for Physiology).

     


  • Number of items: 25.

    Article

    Marsey, L and Winpenny, JP (2009) Bestrophin expression in the human pancreatic duct cell line, CFPAC-1. Journal of Physiology, 587 (10). pp. 2211-2224.

    Winpenny, JP, Marsey, LL and Sexton, DW (2009) The CLCA Gene Family: Putative Therapeutic Target for Respiratory Diseases. Inflammation and Allergy - Drug Targets, 8 (2). pp. 146-160.

    Marsey, L, Al-Naimi, S and Winpenny, JP (2007) Ser/Thr protein phosphatases are involved in the regulation of calcium-activated chloride channels in the cystic fibrosis pancreatic duct cell line, CFPAC-1. Life Science: Proc Life Sciences, PC209.

    Marsey, LL and Winpenny, JP (2006) Human bestrophin-1 protein is expressed in the human pancreatic duct cell line, CFPAC-1. Proceedings of Physiological Society, 2. p. 28.

    Kennedy, DJ, Gatfield, KM, Winpenny, JP, Ganapathy, V and Thwaites, DT (2005) Substrate specificity and functional characterisation of the H+/amino acid transporter rat PAT2 (SLC36A2). British Journal of Pharmacology, 144 (1). pp. 28-41.

    Shiraga, T, Winpenny, JP, Carter, E, McCarthy, VA, Hollingsworth, M and Harris, A (2005) MZF-1 and DbpA interact with DNase I hypersensitive sites that correlate with expression of the human MUC1 mucin gene. Experimental Cell Research, 308 (1). pp. 41-52.

    Winpenny, JP (2005) Lubiprostone. IDrugs, 8 (5). pp. 416-422.

    Gray, MA, O'Reilly, C, Winpenny, JP and Argent, B (2001) Functional interactions of HCO3 with cystic fibrosis transmembrane conductance regulator. Journal of the Pancreas, 2 (Suppl 4). pp. 207-211.

    Choudhury, A, Moniaux, N, Winpenny, JP, Hollingsworth, MA, Aubert, JP and Batra, SK (2000) Human MUC4 mucin cDNA and its variants in pancreatic carcinoma. Journal of Biochemistry (Tokyo), 128 (2). pp. 233-243.

    Gray, MA, O'Reilly, C, Winpenny, JP and Argent, B (2000) Anion interactions with CFTR and consequences for HCO3 transport in secretory epithelia. Journal of Korean Medical Sciences, 15 (Suppl). pp. 12-15.

    O'Reilly, CM, Winpenny, JP, Argent, BE and Gray, MA (2000) Cystic fibrosis transmembrane conductance regulator currents in guinea pig pancreatic duct cells. Inhibition by bicarbonate ions. Gastroenterology, 118 (6). pp. 1187-1196.

    Winpenny, JP, Harris, A, Hollingsworth, M, Argent, BE and Gray, MA (1998) Calcium-activated chloride conductance in a pancreatic adenocarcinoma cell line of ductal origin (HPAF) and in freshly isolated human pancreatic duct cells. Pflugers Archive, 435 (6). pp. 796-803.

    Winpenny, JP, Mathews, CJ, Verdon, B, Wardle, CJC, Chambers, JA, Harris, A, Argent, BE and Gray, MA (1996) Volume-sensitive chloride currents in primary cultures of human fetal vas deferens epithelial cells. Pflugers Archive, 432 (4). pp. 644-654.

    Gray, MA, Winpenny, JP, Verdon, B, McAlroy, HL and Argent, BE (1995) Chloride channels and cystic fibrosis of the pancreas. Bioscience Reports, 15 (6). pp. 531-542.

    Smith, AN, Wardle, CJC, Winpenny, JP, Verdon, B, Gray, MA, Argent, BE and Harris, A (1995) cAMP-activated chloride channels in a CFTR-transfected pancreatic adenocarcinoma-derived cell line, pANS6. Biochimica et Biophysica Acta, 1271 (2/3). pp. 315-320.

    Verdon, B, Winpenny, JP, Whitfield, KJ, Argent, BE and Gray, MA (1995) Volume-activated chloride currenst in pancreatic duct cells. Journal of Membrane Biology, 147 (2). pp. 173-183.

    Winpenny, JP, Smith, AN, McAlroy, HL and Wardle, CJC (1995) Protein kinase C regulates the magnitude and stability of CFTR currents in pancreatic duct cells. American Journal of Physiology, 268 (Cell Physiol. 37). pp. 823-828.

    Winpenny, JP, Verdon, B, McAlroy, HL, Colledge, WH, Ratcliff, R, Evans, MJ, Gray, MA and Argent, BE (1995) Calcium-activated chloride conductance is not increased in pancreatic duct cells of CF mice. Pflugers Archive, 430 (1). pp. 26-33.

    Gray, MA, Winpenny, JP, Porteous, DJ, Dorin, JR and Argent, BE (1994) CFTR and calcium-activated chloride currents in pancreatic duct cells of a transgenic CF mouse. American Journal of Physiology, 266 (Cell Physiol. 35). pp. 213-221.

    Winpenny, JP, Elliott, JR and Harper, AA (1994) Some effects of short chain phospholipids and n-alkanes on a transient potassium current (IA) in identified Helix neurones. Journal of Membrane Biology, 137 (1). pp. 79-90.

    Elliott, JR, Elliott, AA, Harper, AA and Winpenny, JP (1992) Effects of general anaesthetics on neuronal sodium and potassium channels. General Pharmacology, 23 (6). pp. 1005-1011.

    Winpenny, JP, Elliott, JR and Harper, AA (1992) Effects of n-alkanols and a methyl ester on a transient potassium (IA) current in identified neurones from Helix aspersa. Journal of Physiology, 456. pp. 1-17.

    Book Section

    Gray, MA, Winpenny, JP, Verdon, B, O'Reilly, CM and Argent, BE (2002) Properties and role of calcium-activated chloride channels in pancreatic duct cells. In: Current Topics in Membranes. Elsevier Science, San Diego, San Diego, pp. 231-256. ISBN 0121533530

    Argent, BE, Winpenny, JP and Gray, MA (1994) CFTR Chloride Channels and Pancreatic Ductal Bicarbonate Secretion. In: Molecular and Cellular Mechanisms of H* Transport, Series H: Cell Biology,H89. Series H: Cell Biology, H89 . Springer, Verlag, Berlin, Berlin, pp. 301-308.

    Conference or Workshop Item

    Al-Naimi, Suha, Winpenny, John P, Hunter, Paul R and Tyler, Kevin (2010) A soluble mediator from Giardia Lamblia disrupts human gastrointestinal epithelial cell function. In: British Society for Parasitology, Cardiff 29th March - 2nd April 2010.

    This list was generated on Thu Apr 4 23:37:39 2013 BST.

    External Activities and Indicators of Esteem

    • Wellcome Trust Advanced Training Fellowship (1996-1999)
    • Clinical Physiology DoH think-tank (2007)
    • National reference group for national occupational standards (NOS) for healthcare scientists (2006-2007)
    • External Examiner, Anglia Ruskin University, Cambridge (2007-2011)

    Professional Activities

    • 2002-present Reviewer for British Journal of Pharmacology
    • 2005-present Scrutineer for Physiological Society Meeting abstracts
    • 2006-present Reviewer for BBSRC research grant applications.
    • 2007-present Reviewer for Cystic Fibrosis Trust grant committee.
    • 2007-present Reviewer for Clinical Interventions in Aging.
    • 2008-present Reviewer for Journal of Physiology.
    • 2008-present Reviewer for Journal of Pharmacology and Experimental Therapeutics.
    • 1988-present Member of The Physiological Society of Great Britain
    • 2007-2011 - Elected to serve on Council of the Physiological Society
    • 2007-2011 - Education committee of Physiological Society
    • 2007 – present - Physiological Society Rep for UEA
    • 2000-present Member of The American Physiological Society
    • 1994-present Member of The Save British Science Society
    • 1994-present Member of The Research Defence Society

    Administrative Posts/Responsibilities

    • MBBS Year 3 Unit Lead for Unit 7 (The Senses)
    • MBBS Physiology Domain leader for 1st year & 3rd year Student Selected Studies (SSS)
    • Internal examiner, 3rd year MBBS
    • Year 3 lecture programme coordinator
    • Member of MBBS Curriculum Design & Development (CDD) Group
    • Member of timetable group – subgroup of CDD.
    • MED School library liaison representative
    • Representative for MED on Library & Learning Resources Forum
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