Professor Nicholas Fisk

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Nicholas Fisk is Executive Dean of the Faculty of Health Sciences at the University of Queensland, and a maternal-fetal medicine specialist at the Royal Brisbane and Women's Hospital. Previously he was the inaugural Director of the University of Queensland's new state of the art $70M Centre for Clinical Research on the Herston campus, before becoming Executive Dean of Health Sciences in 2010. He practices as a maternal-fetal medicine specialist / high risk obstetrician at the Royal Brisbane and Women's Hospital, and maintains a research group in UQCCR.

Between 1992-2007 he was Professor of Obstetrics /Fetal Medicine at Imperial College & Queen Charlotte's Hospital, London, where his laboratory and clinical research program achieved an international reputation in fetal diagnosis and treatment. His main research interests have been in human fetal mesenchymal stem cell biology and monochorionic multiple pregnancy, but also spanned non-invasive prenatal diagnosis, fetal nociception, caesarean section, preterm labour, obstetric ultrasound and drug development in obstetrics. A fetal-medicine subspecialist with an MBA and a PhD in fetal physiology, he has authored nearly 400 publications, and is a past President of the International Fetal Medicine and Surgery Society. He reviews for numerous international grant bodies, and is a member of several editorial boards including PLoS Medicine.

He is passionate about the opportunities offered in UQCCR, to drive clinical research in a "bench to bedside" and "bedside to bench" environment, to link wet and dry laboratories with patients, and basic with clinical scientists, and to foster the training of tomorrow's cadre of translational researchers. Organic talent within UQCCR's main themes of clinical neuroscience, cancer and tissue repair, is being augmented by appointment of international researchers and linked by core cross cutting themes in clinical trials & outcomes, perinatal medicine and stem cells.

His own experimental fetal medicine group works on the role of fetal mesenchymal stem cells in tissue repair, both the development stem cell transplantation to repair debilitating early onset genetic disease, and their wider application to childhood and adult diseases. His clinical fetal medicine group in collaboration with colleagues in the hospital's Centre for Advanced Prenatal Care works on the twin twin transfusion syndromes, in particular optimising results of current laser and other therapies.

Research Interests

1. Fetal Mesenchymal Stem Cell (fMSC) Biology

These cells have therapeutic potential, being more primitive than adult MSC with greater differentiability, but lack the oncogenicity of embryonic cells. They are readily isolated from placenta, amniotic fluid, fetal blood, liver and bone marrow. Our group showed that fMSC express pluripotency markers, grow faster and senesce later with longer telomeres, and show greater myogenic/osteogenic capacity. fMSC express adhesion molecules favouring engraftment, and their transplacental passage is implicated in fetomaternal microchimerism (FMC), whereby fMSC persist lifelong in women to participate in post-reproductive tissue repair. Intrauterine transplantation holds promise to treat disabling early-onset genetic disease, and we recently showed experimentally that a single MSC transplant in mid gestation prevents 2/3 of fractures in osteogenesis imperfecta.

MSC hold promise to treat a range of unmet medical need in hereditary, acquired & degenerative disease. Translational potential is high for conditions affecting bone, and musculoskeletal diseases are a national/international research priority. For genetic disorders, MSC have shown benefit in a clinical trial of children with osteogenesis imperfecta, while we have shown intrauterine transplantation of fMSC prevents fractures in an animal model. For acquired osteochondral conditions, fractures cost Australia over $700 million annually, and scaffold-supported MSC promote healing in bony non-union or mandibular/cranial defects in both animal studies and early clinical trials. We are evaluating how various cells can be used to repair bone injury and disease, using both naturally occurring cells like osteomacs and using primitive sources of stem cells.


2. Monochorionic Intertwin Transfusion

tttsThis clinical program investigates the fetoplacental circulatory pathophysiology and treatment of twin-twin transfusion syndrome. This is a debilitating fetal condition, which arises from unbalanced transfusion along placental vascular anastomoses in monochorionic or single placenta twins where a net recipient develops volume overload and polyuria and a net donor growth restriction, oliguria and fetal compromise. Despite advances in treatment TTTS still results in a high rate of fetal death or long-term brain injury. Although considered rare, TTTS affects nearly as many babies as Down syndrome.

Research Projects

1. Fetal Mesenchymal Stem Cell (fMSC) Biology

Characterise novel properties of fetal MSC. To compare fMSC to later developmental and adult stem cells, we explore stability, transcriptional regulation, immunology and drivers to differentiation of fMSC under varying conditions though to senescence. Niche effects are explored as by site of origin and gestation. Scalable sources of fMSC are being developed through microfluidic based selection and directed differentiation of pluripotent cells.

Role of microchimeric fMSC in postreproductive tissue repair. To investigate the role of fMSC in tissue repair in women, the cell type will be delineated by in-vivo tracking with bioluminescent reporters. Transgenic models are used to investigate their functional role in acute and chronic maternal tissue repair. We are also exploring the biological role of and influence of pregnancy complications on FMC in health and disease.

Develop intrauterine transplantation for early onset genetic disease.Site-specific engraftment and tissue repair is being optimised in models with fetal tissue injury in utero, specifically osteogenesis imperfecta, and extended to other clinically-applicable models of debilitating hereditary disease. The aim is to develop fetal-fetal transplantation for translation into affected human pregnancies.

Optimise site specific engraftment. The contribution of chemokine/receptor systems in fMSC homing to injured tissue, will be evaluated by manipulating receptors in a variety of tissue and bone injury paradigms. This will inform therapeutic strategies to facilitate engraftment.

To derive robust sources of scalable MSC to overcome the supply issues associated with adult MSC, a variety of primitive stem cells including iPS will be evaluated for their ability to repair bone in developmental and acquired injury models.

2. Monochorionic Intertwin Transfusion

  • Investigation of the molecular regulation of discordant vasoactive mediators, particularly the renin angiotensin system, in genetically identical twins.
  • Development of better biophysical and biochemical biomarkers for transfusional imbalance and TTTS
  • Determination of optimal therapy for early stage disease
  • Evaluation of novel therapeutic approaches such as radiofrequency

Key publications

Papers

  • Campagnoli C, Roberts IAG, Kumar S, Bennett PR, Bellantuono I, Fisk NM: Identification of mesenchymal stem/progenitor cells in human first trimester fetal blood, liver and bone marrow. Blood 98: 2396-402, 2001.
  • O'Donoghue K, Chan J, de la Fuente J, Kennea N, Sandison A, Anderson JR, Roberts IAG, Fisk NM: Micro-chimerism in female bone marrow and bone decades after fetal mesenchymal stem cell trafficking in pregnancy. Lancet 364: 179-82, 2004.
  • Chan J, Waddington SN, O'Donoghue K, Kurata H, Guillot PV, Gotherstrom C, Themis M, Morgan JE, Fisk NM: Widespread distribution and muscle differentiation of human fetal mesenchymal stem cells after intrauterine transplantation in dystrophic mdx mouse. Stem Cells 25: 875-84, 2007.
  • Barigye O, Pasquini L, Galea P, Chappell L, Chambers H, Fisk NM: High risk of unexpected late fetal death in monochorionic diamniotic twins despite intensive ultrasound surveillance: a cohort study. PloS Medicine 2: 521-7, 2005.
  • Guillot PV, Abass O, Bassett JH, Shefelbine SJ, Bou-Gharios G, Chan J, Kurata H, Williams GR, Polak J, Fisk NM: Intrauterine transplantation of human fetal mesenchymal stem cells from first trimester blood repairs bone and reduces fractures in osteogenesis imperfecta mice. Blood 111:1717-1725, 2008.
  • Guillot PV, Gotherstrom CA, Chan J, Kurata H, Fisk NM: Human first trimester fetal mesenchymal stem cells (MSC) express pluripotency markers, grow faster, and have longer telomeres compared to adult MSC. Stem Cells 25: 646-54, 2007.
  • Galea P, Barigye O, Wee L, Jain V, Sullivan M, Fisk NM: The Placenta Contributes to Activation of the Renin Angiotensin System in Twin-Twin Transfusion Syndrome. Placenta 29:734-42, 2008.
  • Chan J, Kumar S, Fisk NM: First Trimester Embryo-Fetoscopic And Ultrasound-Guided Fetal Blood Sampling For Ex-Vivo Viral Transduction Of Cultured Human Fetal Mesenchymal Stem Cells. Human Reproduction 23:2427-37, 2008.
  • Santos MA, O'Donoghue K, Wyatt-Ashmead J, Fisk NM: Fetal cells in the maternal appendix: a marker of inflammation or fetal tissue repair? Hum Reprod 23:2319-25, 2008.
  • O'Donoghue K, Cartwright E, Galea P, Fisk NM: Stage I twin-twin transfusion syndrome: rates of progression and regression in relation to outcome. Ultrasound Obstet Gynecol 30: 958-964, 2007.

Reviews:

  • Fisk NM, Duncombe GJ, Sullivan MH: The basic and clinical science of twin-twin transfusion syndrome. Placenta 2009. 30:379-90
  • Guillot P, O'Donoghue K, Kurata H, Fisk NM. Fetal stem cells: betwixt and between. Semin Reprod Med 24: 340-7, 2006.
  • Bianchi D, Fisk NM: Gender matters: fetomaternal cell trafficking and the stem cell debate. JAMA 297: 1489-91, 2007.

Contact details and email:

Professor Nicholas Fisk
University of Queensland
Centre for Clinical Research
Building 71/918
Royal Brisbane & Women's Hospital Campus
HERSTON 4029 QLD

Telephone: +61 7 3346 5300
Fascimile: +61 7 3346 5304
Email: execpa@health.uq.edu.au
Internet: www.uqccr.uq.edu.au

 

Group Members

Allison Pettit
Liza Raggatt

Jennifer Ryan
Michael Ting
Kylie Alexander
Erin Maylin
Elke Seppanen
Rebecca Pelekanos
Eddy Lee

Carol Portmann
Johanna La Porte
Greg Duncombe

Funding Bodies

Australian Research Council

Funding acknowledgement

National Health and Medical Research Council
University of Queensland
Richard & Jack Wiseman Trust
Institute of Obstetrics & Gynaecology Trust
Queensland Health
Australian Stem Cell Centre

Royal Brisbane and Women's Hospital Foundation

Potential PhD Projects

  • Cancer association with reduced fetal stem cell microchimerism
  • Fetal stem cell transplantation
  • Generation of fetal like mesenchymal stem cells from induced pluripotent stem cell
  • Maximising homing and engraftment of stem cells for bone repair

Collaborations

Associate Professor Kiarash Khosrotehrani, UQ Centre for Clinical Research
Associate Professor Ernst Wolvetang, Australian Institute of Bioengineering and Nanotechnology, University of Queensland
Professor Kerry Atkinson, Mater Medical Research Institute, Queensland
Professor Justin Cooper-White, Australian Institute of Bioengineering and Nanotechnology, University of Queensland
Dr Roland Steck, School of Engineering Systems, Institute of Health and Biomedical Innovation, Queensland University of Technology
Dr George Bou-Gharios, Kennedy Institute, Imperial College London
Dr Jerry Chan & Associate Professor Mahesh Choolani, Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore
Professor Alan Mackay-Sim, Eskitis Institute, Griffith University
Dr Pascale Guillot, Institute of Reproductive and Developmental Biology, Imperial College London
Associate Professor Stan Gronthos, Head, Mesenchymal Stem Cell Group and Regenerative Medicine Program Division of Haematology, Institute of Medical and Veterinary Sciences, Adelaide