Claude J Le Saux , PhD
I am interested in the mechanisms by which aging and injury trigger cellular senescence in the lungs leading to the remodeling of the pulmonary tissue. My interest also centers around developing biomarkers that could be use in clinical trials of anti-fibrotic compounds.
1989 Universite de Provence, Marseille, France BS MajorBiochemistry and Microbiology
1990 Universite de Provence, Marseille, France MS MajorCell and Molecular Biology
1991 Universite de Provence, Marseille, France MENG MajorMicrobiology and Biotechnology
1992 Universite de Provence, Marseille, France PhD MajorCell and Molecular Biology PhD Advisor Dr. Pascal Sommer
Keywords of Interest:
Pulmonary Fibrosis, Senescence, Aging, Macrophage biology, Cardiac Remodeling
I am interested in the mechanisms by which aging and injury trigger cellular senescence in the lungs leading to the remodeling of the pulmonary tissue. I have built over the course of the last 20 years my expertise on remodeling/fibrosis and in the last 5 years on cellular senescence. This publication is one of the first ones to demonstrate not only the presence of senescent cells in aged lungs but their causal role of the age-associated remodeling features of the lungs
Calhoun C, Shivshankar P, Saker M, Sloane LB, Livi CB, Sharp ZD, Orihuela CJ, Adnot S, White ES, Richardson A, Jourdan Le Saux C. Senescent Cells Contribute to the Physiological Remodeling of Aged Lungs. J Gerontol A Biol Sci Med Sci. 2015 Jan 7;PubMed PMID: 25568097.
My initial work focused on the characterization of the transcriptional regulation of lysyl oxidase and collagen type I in the liver fibrosis. At that time only 2 members were characterized in the family of lysyl oxidase and lysyl oxidase-like family. By RNA screening and computer analysis, we identified additional unknown members. I spent my postdoctoral fellowship cloning and characterizing these additional members of the lysyl oxidase family in mouse and human (Lysyl oxidase-2, -3 and -4). Because of the identification and characterization of these additional proteins, a better understanding of the substrate specificity could be achieved and these proteins are now used as therapeutic targets in various fibrotic disorders
Jourdan-Le Saux C, Tronecker H, Bogic L, Bryant-Greenwood GD, Boyd CD, Csiszar K. The LOXL2 gene encodes a new lysyl oxidase-like protein and is expressed at high levels in reproductive tissues. J Biol Chem. 1999 Apr 30;274(18):12939-44. PubMed PMID: 10212285.
Awards & Accomplishments
1994 Pre-doctoral Fellowship Award Association pour la Recherche sur le Cancer
1995 Pre-doctoral Fellowship Award Association pour la Recherche sur le Cancer
1996 Pre-doctoral Fellowship Award Glaxo Pharmaceutical Products
1996 Award for best promising pre-doctoral fellow Association de la Technolopole de Gerland
2012 Young investigator award 17th colloquium on lung and airways fibrosis, Modena, Italy
2014 Carol Basbaum Award American Thoracic Society Respiratory Cell and Molecular Biology
2001 – present American Thoracic Society
2009 – 2010 American Heart Association
2016 – present Association for Research in Vision and Ophthalmology
Pereira BI, Devine OP, Vukmanovic-Stejic M, Chambers ES, Subramanian P, Patel N, Virasami A, Sebire NJ, Kinsler V, Valdovinos A, Jourdan Le Saux C, Passos JP, Antoniou A, Rustin MHA, Campisi J, Akbar AN. Senescent cells evade immune clearance via HLA-E-mediated NK and CD8+ T cell inhibition. Nature Communications. 2019; 10:2387. 10.1038/s41467-019-10335-5
Jourdan Le Saux C, Chapman HA. Idiopathic Pulmonary Fibrosis: Cell Death and Inflammation Revisited. American Journal of Respiratory Cell and Molecular Biology. 2018; 59(2): 137 doi.org/10.1165/rcmb.2018-0083ED
Wei Y, Kim TJ, Peng DH, Duan D, Gibbons DL, Yamauchi M, Jackson JR, Le Saux CJ, Calhoun C, Peters J, Derynck R, Backes BJ, Chapman HA. Fibroblast-specific inhibition of TGF-β1 signaling attenuates lung and tumor fibrosis. J Clin Invest. 2017;127(10):3675-3688. doi: 10.1172/JCI94624. Epub 2017 Sep 5. PMID:/> 28872461
Sanon VP, Sawaki D, Mjaatvedt CH, Jourdan Le Saux C. Myocardial tissue caveolae. Comprehensive Physiology. 2015; 5(2):871-86. PMID: 25880516
Pinkerton KE, Harbaugh M, Han MK, Jourdan Le Saux C, Van Winkle LS, Martin Ii WJ, Kosgei RJ, Carter EJ, Sitkin N, Smiley-Jewell SM, George M. Women and Lung Disease: Gender Differences and Global Health Disparities. American Journal of Respiratory and Critical Care Medicine. 2015; PMID: 25945507
Halaney DL, Zahedivash A, Phipps JE, Wang T, Dwelle J, Jourdan Le Saux C, Asmis R, Milner TE, Feldman MD. Differences in forward angular light scattering distributions between M1 and M2 macrophages. J Biomed Opt. 2015 PMID: 26538329.
Wan F, Letavernier E, Jourdan Le Saux C, Houssaini A, Abid S, Czibik G, Sawaki D, Marcos E, Dubois-Rande JL, Baud L, Adnot S, Derumeaux G, Gellen B. Calpastatin overexpression impairs postinfarct scar healing in mice by compromising reparative immune cell recruitment and activation. Am J Physiol Heart Circ Physiol. 2015. PMID: 26453333