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Department of Pathobiological Sciences

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Faculty

Samithamby Jeyaseelan (Jey)
Assistant Professor

Laboratory
Lung biology

Phone: 225-578-9524 (office)
225-578-9694 (lab)

Fax:
225-578-9701
jey@lsu.edu

Education
DVM University of Peradeniya, Sri Lanka (1992) • PhD University of Minnesota (2001) •
Postdoctoral Fellow: Yale University (2001–2003), National Jewish Medical and Research Center (2003–2004)

Research Interests
Pulmonary Inflammation and Host Defense
The primary focus of my laboratory is to understand the role of receptor-mediated signaling upon binding of bacteria and/or their products in the pathogenesis of inflammatory diseases in the lung. In particular, we are interested in determining the role of Toll-like receptors (TLRs) and their adaptors in the development of innate immune response in the lung in a murine model. We use LPS-derived from bacteria to induce acute lung injury and use Klebsiella pneumoniae, Streptococcus pneumoniae, Escherichia coli, Pseudomonas aeruginosa, and Legionella pneumophila to induce pneumonia. Another focus of my laboratory is to delineate the role of a neutrophil chemokine CXCL5 in lung inflammation and host defense. Appropriate gene-deficient mice and human and murine primary cells are being used. The goal of this research is to resolve the mechanisms by which these bacteria and/or their products cause inflammation in the lung, and ultimately to design novel treatment and prevention strategies to attenuate excessive inflammation.

Current Funding
American Lung Association
Flight Attendant Medical Research Institute
NIH COBRE Program

Current laboratory members:
1. Prince D. Immanuel, DVM, PhD - Postdoctoral fellow; iprince@lsu.edu
2. Shanshan Cai, PhD - Postdoctoral fellow; scai1@lsu.edu
3. Yanru Zhang, PhD - Visiting Professor; yanru1984@163.com
4. Shen Li, PhD - Postdoctoral Fellow; arriving 03/01/2008
5. John Mai, BS - Undergrad; jmai1@lsu.edu
6. Ann Craig, BS - Summer Research Scholar/DVM Student; Acraig@vetmail.lsu.edu

Selected Publications
(For a comprehensive list of Dr. Jeyaseelan's recent publications, refer to PubMed, a service provided by the National Library of Medicine.)

Jeyaseelan S*, Young SK, Fessler MB, Liu Y, Malcolm KC, Yamamoto M, Akira S, and Worthen GS. 2007. TRIF-Mediated Signaling Contributes to Innate Immune Responses in the Lung During Escherichia coli Pneumonia. Journal of Immunology - 178:3153-60. (*Corresponding author)

Wu Q, Martin RJ, Rino JG, Jeyaseelan S, Breed R, and Chu HW. 2007. A Deficient TLR2 Signaling Promotes Airway Mucin Production in Mycoplasma pneumoniae-infected allergic mice. American Journal of Physiology - Lung Cellular and Molecular Physiology – 292: L1064-72

Jeyaseelan S*, Young SK, Yamamoto, Arndt PG, M, Akira S, Kolls JK, and Worthen GS. 2006. TIRAP Is a Critical Mediator of Pulmonary Defense against Klebsiella pneumonia but Not Pseudomonas aeruginosa. Journal of Immunology. 177: 538-547 (*Corresponding author)

Jeyaseelan S*, Manzer R, Young SK, Yamamoto M, Akira S, Mason RJ, and Worthen GS. 2005. TIRAP Is critical for early immune responses in the Lung against E. coli LPS and viable E. coli. Journal of Immunology. 175:7484-95 (*Corresponding author)

Jeyaseelan S*, Manzer R, Young SK, Yamamoto M, Akira S, Mason RJ and Worthen GS. 2005. Induction of CXCL5 During Inflammation in the Rodent Lung Involves Activation of Alveolar Epithelium. American Journal of Respiratory Cell and Molecular Biology. 32: 531-9 (*Corresponding author)

Chu HW, Jeyaseelan S, Rhino JG, Voelkar DR, Wexler RB, Campbell K, Harbeck R and Martin RJ. 2005. Toll-like receptor 2 Signaling is critical for Mycoplasma pneumoniae-induced Airway Mucin Expression. Journal of Immunology. 174: 5713-9.

Jeyaseelan S*, Chu HW, Young SK, Freeman MW and Worthen GS. 2005. Distinct Roles of Pattern Recognition Receptors CD14 and Toll-like Receptor 4 in Acute Lung Injury. Infection and Immunity. 73: 1754-63. (*Corresponding author)

Fessler MB, Young SK, Jeyaseelan S,  Arndt PG, Lieber JG, Nick JA and Worthen GS.  2005.A Novel Role for 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase in Pulmonary Inflammation and Host Defense. American Journal of Respiratory and Critical Care Medicine. 171: 606-15.

Jeyaseelan S*, Chu HW, Young SK and Worthen GS. 2004. Transcriptional Profiling of Lipopolysaccharide-Induced Murine Acute Lung Injury. Infection and Immunity. 72: 7247-55 (*Corresponding author)

 




Department of Pathobiological Sciences
LSU School of Veterinary Medicine
Skip Bertman Drive • Baton Rouge, LA 70803
Telephone: 225-578-9684 • Fax: 225-578-9701 • E-mail: svmweb@vetmed.lsu.edu

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