Kevin J. Tracey | |
|---|---|
| Tracey in 2019 | |
| Born | 10 December 1957 |
| Alma mater | Boston College (B.S.) Boston University (M.D.) |
| Known for | Inflammatory reflex Bioelectronic medicine Vagus nerve research |
| Awards | Hans Wigzell Research Foundation Science Prize (2023) Fellow, American Institute for Medical and Biological Engineering (2020) Honorary Doctorate, Karolinska Institute (2009) |
| Scientific career | |
| Fields | Neurosurgery, immunology, Bioelectronic medicine |
| Institutions | Feinstein Institute for Medical Research Northwell Health Zucker School of Medicine at Hofstra/Northwell |
| Website | feinstein |
Kevin J. Tracey, a neurosurgeon and inventor, is the president and CEO of the Feinstein Institute for Medical Research, professor of neurosurgery and molecular medicine at the Zucker School of Medicine, and president of the Elmezzi Graduate School of Molecular Medicine [1] in Manhasset, New York. The Public Library of Science Magazine, PLOS Biology, recognized Tracey in 2019 as one of the most cited researchers in the world. [2]
Tracey was born in Fort Wayne, Indiana. He earned a Bachelor of Science (B.S.) degree in chemistry from Boston College in 1979 and a Doctor of Medicine (M.D.) degree from Boston University in 1983. From 1983 to 1992 he completed his neurosurgical training at New York Hospital-Cornell University Medical Center [3] under neurosurgeon, Russel Patterson. During his residency, he conducted research as a guest investigator at Rockefeller University. [4]
In 1992, Tracey joined Northwell Health (then North Shore-LIJ Health System), [5] in Manhasset, New York, where he practiced neurosurgery and founded the Laboratory of Biomedical Science, later renamed the Tatyana and Alan Forman Family Laboratory of Biomedical Science. In 2005, he was appointed president and CEO of the Feinstein Institute for Medical Research, and president of the Elmezzi Graduate School of Molecular Medicine. [1]
He co‑founded '''SetPoint Medical''', a biotechnology company developing vagus nerve stimulation devices for autoimmune diseases, and co‑founded the '''Global Sepsis Alliance''', an international non‑profit organization for sepsis awareness and prevention. [6] [7] [8] [9]
In 2021, Tracey and colleagues at the Feinstein Institutes received a five‑year, $3.7 million grant from the National Institutes of Health to investigate the molecular mechanisms underlying bioelectronic medicine. [10]
Tracey’s research focuses on the interaction between the nervous and immune systems, particularly the neural regulation of inflammation.
In early studies, Tracey and his collaborators identified '''tumor necrosis factor (TNF)''' as a key mediator of shock and tissue injury. [11] [12] They first demonstrated the anti‑inflammatory activity of monoclonal anti‑TNF antibodies, a discovery that supported the development of biologic therapies targeting TNF for rheumatoid arthritis and Crohn’s disease. [13]
In 1999, his team reported that '''high mobility group box 1 (HMGB1)'''—a nuclear DNA‑binding protein—acts as a late‑phase inflammatory mediator, explaining mechanisms of sterile inflammation following trauma and sepsis. [14]
In the 1990s, Tracey and colleagues discovered that electrical or pharmacologic stimulation of the '''vagus nerve''' inhibits cytokine release, including TNF, through an anti‑inflammatory neural pathway. He described this mechanism as the '''inflammatory reflex''', a bidirectional feedback circuit between the nervous and immune systems. [6] [8] [15]
The Tracey lab mapped the inflammatory reflex using genetic, immunological, and bioelectronic tools to define the molecular and neuroscience mechanisms. [14] An unexpected finding from this work is the vagus nerve, a parasympathetic nerve, controls the splenic nerve, a sympathetic nerve. [16] Additionally in 2011, Tracey and colleagues discovered a memory T cell subset that secretes acetylcholine in the spleen when activated by signals arising in the vagus nerve, named "T ChAt" cells. [16] These regulatory T cells produce acetylcholine, the chemical signal to macrophages which turns off production of TNF and other inflammatory mediators. [16]
In May 2018, Tracey's team was first to decode specific signals that the nervous system uses to communicate immune status and alert the brain to inflammation. Identifying these neural signals and what they're communicating about the body's health provides insight into diagnostic and therapeutic targets, and device development. [17] In February 2019, Tracey along with a team led by Tak Mak, PhD, and Maureen Cox, PhD, reported that T ChAt regulate the development of immunity during virus infections. [18]
In November 2020, they reported that neurons in the brainstem dorsal motor nucleus (DMN) of the vagus nerve transmit signals to the celiac-superior mesenteric ganglia in the abdomen. This experiment combined optogenetics, anatomical and functional mapping, and measurement of TNF production to show for the first time that parasympathetic vagus neurons control sympathetic splenic neurons, because the parasympathetic and sympathetic nervous systems were believed to be independent. [19]
In May 2025, Kevin J. Tracey published The Great Nerve: The New Science of the Vagus Nerve and How to Harness Its Healing Reflexes, a book exploring the role of the vagus nerve in regulating the immune system. [20] Drawing from research, Tracey discusses how stimulating the vagus nerve can turn off inflammation and could offer treatments for rheumatoid arthritis and inflammatory bowel disease, among others. [21]
| Year | Title [32] | Publication | Author(s) | Volume/Issue Citation |
|---|---|---|---|---|
| 2024 | Consolidating roles of neuroimmune reflexes: specificity of afferent, central, and efferent signals in homeostatic immune networks | Cold Spring Harbor Laboratory Press | Kevin J. Tracey | 0.1101/gad.352287.124 |
| 2022 | Identification of a brainstem locus that inhibits tumor necrosis factor | PNAS | Kressel AM, Tsaava T, Levine YA, Chang EH, Addorisio ME, Chang Q, Burbach BJ, Carnevale D, Lembo G, Zador AM, Andersson U, Pavlov VA, Chavan SS, Tracey KJ | 10.1073/pnas.2008213117 |
| 2016 | Vagus nerve stimulation inhibits cytokine production and attenuates disease severity in rheumatoid arthritis | PNAS | Koopman FA, Chavan SS, Miljko S, Grazio S, Sokolovic S, Schuurman PR, Mehta AD, Levine YA, Faltys M, Zitnik R, Tracey KJ, Tak PP | 10.1073/pnas.1605635113 |
| 2011 | Acetylcholine-synthesizing T cells relay neural signals in a vagus nerve circuit | Science | Rosas-Ballina M, Olofsson PS, Ochani M, Valdés-Ferrer SI, Levine YA, Reardon C, Tusche MW, Pavlov VA, Andersson U, Chavan S, Mak TW, Tracey KJ | 10.1126/science.1209985 |
| 2003 | Nicotinic acetylcholine receptor alpha7 subunit is an essential regulator of inflammation | Nature | Wang H, Yu M, Ochani M, Amella CA, Tanovic M, Susarla S, Li JH, Wang H, Yang H, Ulloa L, Al-Abed Y, Czura CJ, Tracey KJ | 10.1038/nature01339 |
| 2002 | The inflammatory reflex | Nature | Tracey KJ | 10.1038/nature01321 |
| 2000 | Vagus nerve stimulation attenuates the systemic inflammatory response to endotoxin | Nature | Borovikova LV, Ivanova S, Zhang M, Yang H, Botchkina GI, Watkins LR, Wang H, Abumrad N, Eaton JW, Tracey KJ | 10.1038/35013070 |
| 1999 | HMG-1 as a late mediator of endotoxin lethality in mice | Science | Wang H, Bloom O, Zhang M, Vishnubhakat JM, Ombrellino M, Che J, Frazier A, Yang H, Ivanova S, Borovikova L, Manogue KR, Faist E, Abraham E, Andersson J, Andersson U, Molina PE, Abumrad NN, Sama A, Tracey KJ | 10.1126/science.285.5425.248 |