Samy  Y.  Lamouille

Samy Y. Lamouille, Ph.D.

Assistant Professor, Basic Science Education, Virginia Tech Carilion School of Medicine

Research Assistant Professor, Biological Sciences, College of Science, Virginia Tech

Research Assistant Professor, Virginia Tech Carilion Research Institute

Contact

Office phone: 540-526-3302

Office location: R3001

Email address: lamouils@vtc.vt.edu

The Lamouille Laboratory focuses on understanding how deregulation of cancer cell communication within the tumor microenvironment can lead to tumor progression and resistance to therapies, and is developing novel therapeutic strategies targeting cellular communication and metastases in human cancer progression.

Epithelial-mesenchymal transition (EMT) is a spatially and temporally regulated process during development that can be re-activated in an uncontrolled manner during cancer progression. During EMT, carcinoma cells undergo a complete reprograming at the transcription, translation and post-translation levels that leads to dissolution of cell-cell junctions and acquisition of invasive characteristics that promotes cancer cell dissemination to form metastases. In addition, EMT is associated with the generation of cancer stem cells that are resistant to chemotherapies and therefore participate to tumor recurrence following treatment.

We are particularly interested in studying channel-dependent and -independent roles of the gap-junction proteins Connexins during EMT and in cancer stem cells. Transforming Growth Factor-β (TGF-β) is a potent inducer of EMT and regulator of cancer stemness through Smad and non-Smad signaling, and crosstalk with other pathways such as Notch and Wnt. We are studying how these signaling pathways modulate Connexins’ localization and functions in cancer cells that undergo EMT and in cancer stem cells, and developing novel therapeutic strategies using mimetic peptides to specifically disrupt protein-protein interactions that enhance the tumorigenic characteristics of cancer cells.

For a full listing of Dr. Lamouille's publications, visit PubMed.

Education and Training

  • University of Grenoble: B.S. , Biochemistry
  • University of Grenoble: Ph.D. , Molecular and Cell Biology
  • University of California, San Francisco: Postdoctoral Fellowship

Previous Positions

  • Sarcotein Diagnostics
    Principal Scientist
  • University of California, San Francisco
    Research Assistant

Awards and Honors

  • American Heart Association Scientist Development Award

Selected Publications

Katsuno Y, Qin J, Oses-Prieto J, Wang H, Jackson-Weaver O, Zhang T, Lamouille S, Wu J, Burlingame A, Xu J, Derynck R. (2018). Arginine methylation of SMAD7 by PRMT1 in TGF-β-induced epithelial-mesenchymal transition and epithelial stem-cell generation. Journal of Biological Chemistry 293: 13059-72.

James CC, Zeitz MJ, Calhoun PJ, Lamouille S, Smyth JW. (2018). Altered translation initiation of Gja1 limits gap junction formation during epithelial-mesenchymal transition. Molecular Biology of the Cell 29(7): 773-880.

Murphy SF, Varghese RT, Lamouille S, Guo S, Pridham KJ, Kanabur P, Osimani AM, Sharma S, Jourdan J, Rodgers CM, Simonds GR, Gourdie RG, Sheng Z. (2016). Connexin 43 Inhibition Sensitizes Chemoresistant Glioblastoma Cells to Temozolomide. Cancer Research 76(1): 139-49.

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