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Personal profile


Our research is focused on understanding the mechanisms of oocyte development, maturation and fertilization in mammals. Early embryo development in mammals is driven and underpinned by a healthy fertile oocyte. How the oocyte acquires this developmental potential is not understood and problems in oocyte quality are largely responsible for the high rates of infertility and miscarriage in the population.


Our work focuses on understanding how the oocyte undergoes the meiotic cell divisions and why the rate of chromosome abnormalities is so high in women in their late 30s and early 40s. A major factor in determining oocyte quality is the ability of mitochondria to generate ATP. We are studying mitochondrial dynamics and function in oocytes with the aim of modulating mitochondrial activity in order to improve oocyte quality. We have established a new collaboration with Monash IVF in order to translate our findings to the clinic. Our research has been funded by long term MRC Programme Grants and the ARC and the results are published in leading journal including Nature Cell Biology, Science, Developmental Cell, Development and Journal of Cell Biology.

Career Summary:

John obtained his PhD in 1991 from the University of Adelaide before moving to the MRC Experimental Embryology Unit in London. John moved to University College London (UCL) in 1996 where he held an MRC Fellowship and an academic position. In 2004 John was appointed Professor and Head of Department of Physiology, becoming the Associate Dean and Director of the UCL Division of Biosciences in 2007.

Prof John Carroll joined Monash University in September 2012 to take up the position of Head of School of Biomedical Sciences.

Supervision interests

Research area keywords

  • fertility
  • oocyte
  • meiosis
  • aneuploidy
  • cell cycle

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Research Output

Maternal age-dependent APC/C-mediated decrease in securin causes premature sister chromatid separation in meiosis II

Nabti, I., Grimes, R., Sarna, H., Marangos, P. & Carroll, J., 18 May 2017, In : Nature Communications. 8, 9 p., 15346.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
12 Citations (Scopus)

DNA damage-induced metaphase I arrest is mediated by the spindle assembly checkpoint and maternal age

Marangos, P., Stevense, M., Niaka, K., Lagoudaki, M., Nabti, I., Jessberger, R. & Carroll, J. G., 2015, In : Nature Communications. 6, 10 p., 8706.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
40 Citations (Scopus)

Dual-mode regulation of the APC/C by CDK1 and MAPK controls meiosis I progression and fidelity

Nabti, I., Marangos, P., Bormann, J., Kudo, N. R. & Carroll, J. G., 2014, In : Journal of Cell Biology. 204, 6, p. 891 - 900 10 p.

Research output: Contribution to journalArticleResearchpeer-review

21 Citations (Scopus)

Biased inheritance of mitochondria during asymmetric cell division in the mouse oocyte

Dalton, C. & Carroll, J. G., 2013, In : Journal of Cell Science. 126, 13, p. 2955 - 2964 10 p.

Research output: Contribution to journalArticleResearchpeer-review

75 Citations (Scopus)

A spindle assembly checkpoint protein functions in prophase I arrest and prometaphase progression

Homer, H., Gui, L. & Carroll, J. G., 2009, In : Science. 326, 5955, p. 991 - 994 4 p.

Research output: Contribution to journalArticleResearchpeer-review

95 Citations (Scopus)


  • 1 Public event

National Science Week 2017 - Discussion of the future of biomedical research in Australia

John Carroll (Contributor)

Aug 2017

Activity: Community Talks, Presentations, Exhibitions and EventsPublic event