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Health Sciences; Medical Sciences

Laboratoire de biologie cellulaire et moléculaire des lipoprotéines

Centre de recherche hospitalier Faculté de pharmacie
Secondary email: (Personne contact)



Research units

  • Centre de recherche de l'Institut de cardiologie de Montréal

Other Institutions and Research Units

  • Institut de cardiologie de Montréal (ICM)



At Université de Montreal


Projects and funding

Publications and presentations


Poirier S, Mamarbachi M, Chen WT, Lee AS, Mayer G. (2015) GRP94 regulates circulating cholesterol levels through blockade of PCSK9-induced LDLR degradation. Cell Rep. 2015 Dec; 13:2064–2071. 

Demers A, Samami S, Lauzier B, Des Rosiers C, Ngo Sock ET, Ong H, Mayer G. (2015) PCSK9 induces CD36 degradation and impacts long-chain fatty acid uptake and triglyceride metabolism in adipocytes and in mouse liver. Arterioscler Thromb Vasc Biol. 35:2517-2525.

Canuel M, Butkinaree C, Essalmani R, Poirier S, Benjannet S, Asselin MC, Marcinkiewicz J, Chamberland A, Guillemot J, Mayer G, Sisodia S, Jacob Y, Prat A, Seidah NG. (2015) Amyloid precursor-like protein 2 and sortilin do not regulate the PCSK9-mediated low density lipoprotein receptor degradation but interact with each other. J Biol Chem, 290 :18609-18620.

Poirier S, Samami S, Mamarbachi M, Demers A, Chang TY, Vance DE, Hatch GM and Mayer G. (2014) The epigenetic drug 5-azacytidine interferes with cholesterol and lipid metabolism. J Biol Chem. 289:18736-18751.  JBC July 4th cover.

Leblond F, Poirier S, Yu C, Duquette N, Mayer G, Thorin E (2014) The anti-hypercholesterolemic effect of low p53 expression protects vascular endothelial function in mice. PLoS ONE. 9: e92394. doi:10.1371/journal.pone.0092394.

Poirier S, Mayer G (2013) The biology of PCSK9 from endoplasmic reticulum to lysosomes: new and emerging pharmacological checkpoints to control LDL-cholesterol. Drug Design, Development and Therapy. 7:1135-1148.

Seidah NG, Poirier S, Denis M, Parker R, Miao B, Mapelli C, Prat A, Wassef H, Davignon J, Hajjar KA, Mayer G (2012) Annexin A2 is a natural extrahepatic inhibitor of the PCSK9-induced LDL receptor degradation. PLoS ONE 7: e41865. doi:10.1371/journal.pone.0041865.

Poirier S*, Mayer G*, Murphy SR, Garver WS, Chang TY, Schu P, Seidah NG (2013) The cytosolic adaptor AP-1A is essential for the trafficking and function of NPC1. Traffic. 14: 458–469. *Co-first authors.

Benjannet S, Luna Saavedra YG, Hamelin J, Asselin MC, Essalmani R, Pasquato A, Lemaire P, Duke G, Miao B, Duclos F, Parker R, Mayer G, Seidah NG. (2010) Effects of the prosegment and PH on the activity of PCSK9: evidence for additional processing events. J Biol Chem. 284:28856-28864.

Mayer G, Poirier S, Seidah NG (2008) Annexin A2 is a C-terminal PCSK9 binding protein that regulates endogenous LDL receptor levels. J Biol Chem. 283:31791-31801

Labonté P, Begley S, Guévin C, Asselin MC, Nassoury N, Mayer G, Prat A, Seidah NG (2009) PCSK9 impedes HCV infection in vitro and modulates liver CD81 expression. Hepatology. 50:17-24. (Cover illustration of the journal).


  • Pharmacology
  • Cardiology
  • Physiology
  • Cell Biology
  • Biochemistry

Areas of expertise

  • Physiology
  • Physiopathologie mitochondriale
  • Obesity
  • Pharmacologie cardiovasculaire
  • Cardiovascular Diseases
  • Pharmacologie moléculaire