Dr. Marie-Ève Tremblay is a Canada Research Chair (Tier 2) in Neuroimmunity Plasticity in Health and Therapy, researcher within the Neurosciences Axis of the CRCHU de Quebec-Laval University, and Assistant Professor in Laval University’s Department of Molecular Medicine since March of 2013.

Dr. Tremblay is a neuroimmunology specialist who uses state-of-the-art techniques in electron microscopy (with immunostaining and 3D reconstruction) and non-invasive two-photon in vivo imaging, in combination with animal behaviour, as well as cellular and molecular biology. Her discovery that microglia, the immune cells of the brain, actively remodel the neuronal circuitry under normal physiological conditions, has led to the development of a new field of research, investigating their roles in the healthy brain. Through her many initiatives on the national and international scenes, Dr. Tremblay contributes to the development of this emergent field of research which is currently experiencing an explosive growth.

Dr. Tremblay’s work and other recent studies have demonstrated that microglia play a critical role in the remodelling of the neuronal circuits required for learning, memory, and other complex cognitive functions throughout the lifespan. In this context, her laboratory at CRCHU de Québec-Laval University studies the involvement of microglia in the loss of synapses, which is the best neuropathological correlate of cognitive decline across chronic stress, major depression, schizophrenia, aging, and neurodegenerative diseases including Alzheimer’s, the most prevalent in Canada and worldwide. Chronic stress is well known for triggering depression, accelerating cognitive aging, predisposing to neuropsychiatric and neurodegenerative diseases, as well as exacerbating their progression and symptoms.

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Poggini S, Lopez MB, Albanese NC, Golia MT, Ibáñez FG, Limatola C, Furhmann M, Lalowski M, Tremblay ME, Maggi L, Kaminska B, Branchi I

Minocycline treatment improves cognitive and functional plasticity in a preclinical mouse model of major depressive disorder

Journal Article

Behav Brain Res, 441 , 2023.

Abstract | Links:

St-Pierre MK, Šimončičová E, Carrier M, Tremblay MÈ

Microglia in Human Postmortem Brain Samples: Quantitative Ultrastructural Analysis of Scanning Electron Microscopy Images

Journal Article

Methods Mol Biol, 2561 , 2023.

Abstract | Links:

Picard K, Corsi G, Decoeur F, Di Castro MA, Bordeleau M, Persillet M, Layé S, Limatola C, Tremblay MÈ, Nadjar A

Microglial homeostasis disruption modulates non-rapid eye movement sleep duration and neuronal activity in adult female mice

Journal Article

Brain Behav Immun, 107 , 2023.

Abstract | Links:

Carrier M, Dolhan K, Bobotis BC, Desjardins M, Tremblay MÈ

The implication of a diversity of non-neuronal cells in disorders affecting brain networks

Journal Article

Front Cell Neurosci, 16 , 2022.

Abstract | Links:

Tremblay MÈ, Almsherqi ZA, Deng Y

Plasmalogens and platelet-activating factor roles in chronic inflammatory diseases

Journal Article

Biofactors, 48 (6), 2022.

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Traetta ME, Tremblay MÈ

Prenatal inflammation shapes microglial immune response into adulthood

Journal Article

Trends Immunol, 43 (12), 2022.

Abstract | Links:

St-Pierre MK, Carrier M, González Ibáñez F, Šimončičová E, Wallman MJ, Vallières L, Parent M, Tremblay MÈ

Ultrastructural characterization of dark microglia during aging in a mouse model of Alzheimer's disease pathology and in human post-mortem brain samples

Journal Article

J Neuroinflammation, 19 (1), 2022.

Abstract | Links:

VanderZwaag J, Halvorson T, Dolhan K, Šimončičová E, Ben-Azu B, Tremblay MÈ

The Missing Piece? A Case for Microglia's Prominent Role in the Therapeutic Action of Anesthetics, Ketamine, and Psychedelics

Journal Article

Neurochem Res, 2022.

Abstract | Links:

Paolicelli RC, Sierra A, Stevens B, Tremblay ME, Aguzzi A, Ajami B, Amit I, Audinat E, Bechmann I, Bennett M, Bennett F, Bessis A, Biber K, Bilbo S, Blurton-Jones M, Boddeke E, Brites D, Brône B, Brown GC, Butovsky O, Carson MJ, Castellano B, Colonna M, Cowley SA, Cunningham C, Davalos D, De Jager PL, de Strooper B, Denes A, Eggen BJL, Eyo U, Galea E, Garel S, Ginhoux F, Glass CK, Gokce O, Gomez-Nicola D, González B, Gordon S, Graeber MB, Greenhalgh AD, Gressens P, Greter M, Gutmann DH, Haass C, Heneka MT, Heppner FL, Hong S, Hume DA, Jung S, Kettenmann H, Kipnis J, Koyama R, Lemke G, Lynch M, Majewska A, Malcangio M, Malm T, Mancuso R, Masuda T, Matteoli M, McColl BW, Miron VE, Molofsky AV, Monje M, Mracsko E, Nadjar A, Neher JJ, Neniskyte U, Neumann H, Noda M, Peng B, Peri F, Perry VH, Popovich PG, Pridans C, Priller J, Prinz M, Ragozzino D, Ransohoff RM, Salter MW, Schaefer A, Schafer DP, Schwartz M, Simons M, Smith CJ, Streit WJ, Tay TL, Tsai LH, Verkhratsky A, von Bernhardi R, Wake H, Wittamer V, Wolf SA, Wu LJ, Wyss-Coray T

Microglia states and nomenclature: A field at its crossroads

Journal Article

Neuron, 110 (21), 2022.

Abstract | Links:

Maffei A, Chiappalone M, Fattore L, Torres EB, Tremblay MÈ, Wierenga CJ

Editorial: Women in neuroscience

Journal Article

Front Integr Neurosci, 16 , 2022.

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Active projects

  • Nutrition and brain health, from predictive biology to disease prevention and treatment - Food4BrainHealth, from 2019-03-18 to 2024-03-17

Recently finished projects

  • MICROGLIA-SYNAPSE INTERACTIONS: THEIR ROLES IN THE BRAIN’S ADAPTATION TO ENVIRONMENTAL CHALLENGES., from 2014-04-01 to 2022-03-31
  • Microglial control of synaptic function in stress response and vulnerability to depression, from 2018-05-15 to 2021-05-14
  • Role of developing hippocampus in organizing prefrontal cortical functions, from 2015-07-01 to 2021-03-31
Data provided by the Université Laval research projects registery