Keith L. Kirkwood, DDS, PhD

Assistant Professor



Periodontics and Oral Medicine
University of Michigan
1011 N University Ave
Ann Arbor, MI 48109-1078

Phone: (734) 763-7120
Fax: (734) 763-5503
email: klkirk@umich.edu

Education

State University of New York at Buffalo, Post-doc, 1999, Molecular Biology
State University of New York at Buffalo, Ph.D., 1997, Oral Biology
State University of New York at Buffalo, Certificate, 1995, Periodontics
West Virginia University, D.D.S., 1991, Dentistry
West Virginia University, B.A., 1987, Chemistry



Biography

2004-Present - Assistant Professor, Department of Periodontics/Prevention/Geriatrics, University of Michigan

2000-2003 - Assistant Professor, Department of Periodontics & Endodontics and Oral Biology, SUNY at Buffalo

2002-2003 - Research Assistant Professor, Department of Pharmacology and Toxicology, School of Medicine, State University of New York at Buffalo

1997-2000 - Clinical Assistant Professor, Department of Periodontology, School of Dental Medicine, State University of New York at Buffalo

1997-2000 - Clinical Assistant Professor, Department of Oral Biology, School of Dental Medicine, State University of New York at Buffalo

1995-1997 - Clinical Instructor, Department of Periodontology, School of Dental Medicine, State University of New York at Buffalo


Research Interests

Our lab focus over the past several years seeks to understand cell signaling pathways which impact of cytokine mRNA stability and translation using IL-6 mRNA as a model system of study.   Currently, we are addressing the significance of cytokine mRNA stability in the pathogenesis of inflammatory bone loss which occurs in periodontitis.  We also perform translational studies which address the potential of novel pharmacological agents to disrupt inflammation signaling to potentially treat periodontitis.  In addition to these studies, we have initiated studies in the field of oral cancer.  We are addressing molecular mechanisms of tumor invasion into bone based upon cytokine profiles of expression within the tumor-bone microenvironment.  We have shown that oral squamous cell carcinoma cells express RANKL (in addition to other pro-inflammatory cytokines) and tumor-derived RANKL can support osteoclastogenesis in vitro.


Selected Publications
1.    Chemically Modified Tetracyclines Selectively Inhibit IL-6 Expression in Osteoblasts by Decreasing mRNA Stability. Keith L. Kirkwood, Thomas Martin, and Young Joon Kim.  Biochemical Pharmacology 66; 1809-1819, 2003.
2.     Functional cooperation between interleukin-17 and TNFa is mediated by C/EBP family members.  Matthew Ruddy, Grace C. Wong , Xikui K. Liu , Hiroyasu Yamamoto, Soji Kasayama, Keith L. Kirkwood, and Sarah L. Gaffen. The Journal of Biological Chemistry, 279 (4), 2559-2567, 2004.
3.   p38MAPK Regulates IL-6 Expression Through IL-6 mRNA Stability in Osteoblasts. Chetan Patil, Xinsheng Zhu, Carlos Rossa, Young Joon Kim, Keith Kirkwood Immunological Investigations, in press, 2004.
4. Differential Regulation of MMP-13 by Chemical Modified Tetracyclines in Osteoblasts. Keith Kirkwood, Thomas Martin, and Young Joon Kim. J International Academy of Periodontics 6 (2): 39-46, 2004.
5. Triclosan Inhibition of Prostaglandin Production is Enhanced in the Presence of Cetylpyridinium Chloride in Human Gingival Fibroblasts. Keith L. Kirkwood, Thomas Martin, and Young Joon Kim. Journal of Periodontology, in preparation, 2004
6. p38 MAPK Induced RANKL Expression in Bone Marrow Stromal Cells Requires Distal Promoter Elements. Katherine Ehman, Young Joon Kim, Carlos Rossa, Xinsheng Zhu, Keith Kirkwood. Journal of Cellular Biochemistry, in preparation, 2004.