Dr. Lucie Jeannotte is a regular researcher at the CHU Research Centre of Québec- Université Laval, Oncology Axis, and Professor in the Department of Molecular Biology, Medical Biochemistry and Pathology of the Faculty of Medicine at Université Laval. She is also a regular researcher at the Centre for Cancer Research at Université Laval. Her research aims at understanding the molecular mechanisms involved in the formation of the mammalian embryo with a specific interest for Hox genes. Hox genes encode transcriptional factors that play key roles in the developmental hierarchy leading to pattern formation of the embryo. Loss of Hox gene function in mice results in numerous malformations of skeleton and organs, among others, that can impair survival. The developmental origin of several diseases, including cancers, reveals how important it is to understand the mechanisms that control embryogenesis.

Function of the Hoxa5 gene in the formation of the respiratory system

Lung development implies a coordinated regulation of numerous molecules and factors. The team of Dr. Jeannotte has characterized the Hoxa5 mutant mouse line et revealed the critical and unique role of this gene in survival at birth. The loss of Hoxa5 function cause severe defects of the respiratory system that result in death of the mutants at birth. The malformations mimic pediatric congenital diseases, such as tracheal stenosis, lung hypoplasia and congenital diaphragmatic hernia as well as chronic obstructive pulmonary diseases (COPD), a major cause of death in the human population. Hoxa5 mutant mice thus provide a unique animal model to further study these pathologies. Dr. Jeannotte is interested in identifying the targets of HOXA5 transcriptional factor in the respiratory system in order to define the molecular mechanisms perturbed by the Hoxa5 mutation that underlie the phenotypes observed and may lead to future therapies.

Role of YY1 in the pathogenesis of the pleuropulmonary blastoma

The pleuropulmonary blastoma (PPB) is a rare pediatric lung tumor that arises during fetal life. It results from the progression of abnormal lung cysts to an aggressive sarcoma with poor survival. The team of Dr. Jeannotte has produced mutant mice devoid of Yy1 function in lung epithelium. This mutation causes lung cysts as those seen in PPB patients. YY1 is a transcription factor essential for embryo development and survival. YY1 expression is reduced in PPB lung tumors raising the hypothesis that the loss of Yy1 function is important for PPB pathogenesis. To determine the role and mechanisms of action of YY1 in PPB, Dr. Jeannotte aims at identifying  the mechanisms of action of YY1 in lung formation in order to resolve its implication in PPB formation. These studies may reveal novel molecular targets for the design of effective and innovative therapies and better tools for the diagnosis and prognosis of this severe cancer.

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Dugas M, Bedard E, Kpatchavi AC, Guedou FA, Behanzin L, Alary M

Structural determinants of health: a qualitative study on female sex workers in Benin.

Journal Article

AIDS Care, 31 (12), pp. 1471-1475, 2019, ISSN: 0954-0121.

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Macoir J, Hudon C, Tremblay MP, Laforce RJ, Wilson MA

The contribution of semantic memory to the recognition of basic emotions and emotional valence: Evidence from the semantic variant of primary progressive aphasia.

Journal Article

Soc Neurosci, 14 (6), pp. 705-716, 2019, ISSN: 1747-0919.

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Trudel-Guy C, Bedard A, Corneau L, Belanger-Gravel A, Desroches S, Begin C, Provencher V, Lemieux S

Impact of pleasure-oriented messages on food choices: is it more effective than traditional health-oriented messages to promote healthy eating?

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Appetite, 143 , pp. 104392, 2019, ISSN: 0195-6663.

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Dallaire-Theroux C, Beheshti I, Potvin O, Dieumegarde L, Saikali S, Duchesne S, Alzheimer's Disease Neuroimaging Initiative

Braak neurofibrillary tangle staging prediction from in vivo MRI metrics.

Journal Article

Alzheimers Dement (Amst), 11 , pp. 599-609, 2019, ISSN: 2352-8729.

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Turgeon O'Brien H, Gagne D, Lauziere J, Blanchet R, Vezina C, Ayotte P

Temporal trends of legacy and emerging persistent organic pollutants in inuit preschoolers from Northern Quebec (Canada).

Journal Article

Int J Environ Health Res, 29 (6), pp. 643-656, 2019, ISSN: 0960-3123.

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Pousti M, Lefevre T, Amirdehi MA, Greener J

A surface spectroscopy study of a Pseudomonas fluorescens biofilm in the presence of an immobilized air bubble.

Journal Article

Spectrochim Acta A Mol Biomol Spectrosc, 222 , pp. 117163, 2019, ISSN: 1386-1425.

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Fortin-Hughes M, Proulx-Boucher K, Rodrigue C, Otis J, Kaida A, Boucoiran I, Greene S, Kennedy L, Webster K, Conway T, Menard B, Loutfy M, de Pokomandy A, CHIWOS Research Team

Previous experiences of pregnancy and early motherhood among women living with HIV: a latent class analysis.

Journal Article

AIDS Care, 31 (11), pp. 1427-1434, 2019, ISSN: 0954-0121.

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Rousseau F, Langlois S, Johnson JA, Gekas J, Bujold E, Audibert F, Walker M, Giroux S, Caron A, Clement V, Blais J, MacLeod T, Moore R, Gauthier J, Jouan L, Laporte A, Diallo O, Parker J, Swanson L, Zhao Y, Labelle Y, Giguere Y, Forest JC, Little J, Karsan A, Rouleau G

Prospective head-to-head comparison of accuracy of two sequencing platforms for screening for fetal aneuploidy by cell-free DNA: the PEGASUS study.

Journal Article

Eur J Hum Genet, 27 (11), pp. 1701-1715, 2019, ISSN: 1018-4813.

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Bombaldi de Souza FC, Bombaldi de Souza RF, Drouin B, Popat KC, Mantovani D, Moraes AM

Polysaccharide-based tissue-engineered vascular patches.

Journal Article

Mater Sci Eng C Mater Biol Appl, 104 , pp. 109973, 2019, ISSN: 0928-4931.

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Joncas FH, Lucien F, Rouleau M, Morin F, Leong HS, Pouliot F, Fradet Y, Gilbert C, Toren P

Plasma extracellular vesicles as phenotypic biomarkers in prostate cancer patients.

Journal Article

Prostate, 79 (15), pp. 1767-1776, 2019, ISSN: 0270-4137.

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