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Institute of Metabolic Science

Metabolic Research Laboratories
 

Research focus

Obesity is commonly associated with the dysfunction of the brain.  My research interest thus focuses on the understanding of the cross-talks between peripheral and brain circuits regulating appetite and body weigh homeostasis. 

Background and experience

With a dream to be a scientist from young, I completed a Biomedical Science Bachelor degree at The University of Auckland, NZ and graduated with First Class Honours.  Subsequently I did a PhD in the department of Physiology at University of Cambridge.  During my PhD, I investigated the central site(s) of action of Ghrelin that act both within the central neverous system and at the pituitary to stimulate growth hormone secretion, also increase food intake resulting in increased adiposity. I joined IMS-MRL straight after my PhD and expended my research skills from in vivo into molecular and cellular approaches.

Working at the IMS-MRL 

One of the objectives of my current post is to provide knowledge and experimental expertise for the fast-growing neuronal program of research.  Over the years, I have taken a lead in establishing and optimising many techniques required for the identification and characterization of new molecules and pathways that potentially play a role in the control of energy homeostasis. With the growing availability of population genomic database, my research in more recent years has extended further to characterise the functional consequences of genetic variants of uncertain significance at greater scale. My skill sets span from molecular biology, genome engineering, RNA biology to protein biology and their application in various disease models including Stem cells, Drosophila and rodents.  

In parallel to establishing techniques, I suggests, designs, and carries out experiments, I also played a key role in a range of managerial responsibilities on both strategic and tactical levels, including supervision and frequent scientific discussion with undergraduates, graduate students, research assistants and postdocs.  

Publications

Key publications: 

Cimino I, Kim H, Tung YCL, Pedersen K, Rimmington D, Tadross JA, Kohnke SN, Neves-Costa A, Barros A, Joaquim S, Bennett D, Melvin A, Lockhart SM, Rostron AJ, Scott J, Liu H, Burling K, Barker P, Clatworthy MR, Lee EC, Simpson AJ, Yeo GSH, Moita LF, Bence KK, Jørgensen SB, Coll AP, Breen DM, O'Rahilly S. (2021) Activation of the hypothalamic-pituitary-adrenal axis by exogenous and endogenous GDF15. Proc Natl Acad Sci U S A. 118(27) 

Tung YCL & O’Rahilly S. (2020) Constitutional Thinness: tALKing the tALK or wALKing the wALK?   Cell Metabolism 32(1):8 

Coll AP, Chen M, Taskar P, Rimmington D, Patel S, Tadross JA, Cimino I, Yang M, Welsh P, Virtue S, Goldspink DA, Miedzybrodzka EL, Konopka AR, Esponda RR, Huang JT, Tung YCL, Rodriguez-Cuenca S, Tomaz RA, Harding HP, Melvin A, Yeo GSH, Preiss D, Vidal-Puig A, Vallier L, Nair KS, Wareham NJ, Ron D, Gribble FM, Reimann F, Sattar N, Savage DB, Allan BB, O'Rahilly S. (2020) GDF15 mediates the effects of metformin on body weight and energy balance. Nature 578(7795):444-448 

Chalmers J, Tung YCL *,Liu CH,O’Kane CH, O'Rahilly S, Yeo GSH (2021) A multicomponent screen for feeding behaviour and nutritional status in Drosophila to interrogate mammalian appetite-related genes Mol Metab 43:101127. (*co-first and corresponding author) 

Martinez-Sanchez N, Seoane-Collazo P, Contreas C, Varela L, Villarroya J, Rial-Pensado E, Buqué X, Aurrekoetxea I, Delgado T, Vázquez-Martínez R, González-García I,  Roa J, Whittle A,  Gomez-Santos B, Velagapudi V, Tung YCL, Morgan D, Voshol P,  Martínez de Morentin P, … López M (2017) Hypothalamic AMPK-ER Stress-JNK1 Axis Mediates the Central Actions of Thyroid Hormones on Energy Balance Cell Metab. 5:26(1):2120229 

Dalgaard K, Landgraf K, Heyne S, Lempradl A, Longinotto J, Gossens K, Ruf M, Orthofer M, Strogantsev R, Selvaraj M, Lu TT, Casas E, Teperino R, Surani MA, Zvetkova I, Rimmington D, Tung YC, Lam B, Larder R, Yeo GS, O'Rahilly S, Vavouri T, Whitelaw E, Penninger JM, Jenuwein T, Cheung CL, Ferguson-Smith AC, Coll AP, Körner A, Pospisilik JA. (2016) Trim28 Haploinsufficiency Triggers Bi-stable Epigenetic Obesity. Cell 164(3):353-64.  

Tung YC, Gulati P, Liu CH, Rimmington D, Dennis R, Ma M, Saudek V, O'Rahilly S, Coll AP, Yeo GS. (2015) FTO is necessary for the induction of leptin resistance by high-fat feeding. Mol Metab. 4(4):287-98  

Senior Research Associate
Coll Group

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