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Preoperative stimulation of resolution and inflammation blockade eradicates micrometastases
Dipak Panigrahy, … , Charles N. Serhan, Vikas P. Sukhatme
Dipak Panigrahy, … , Charles N. Serhan, Vikas P. Sukhatme
Published June 17, 2019
Citation Information: J Clin Invest. 2019;129(7):2964-2979. https://doi.org/10.1172/JCI127282.
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Research Article Inflammation Oncology

Preoperative stimulation of resolution and inflammation blockade eradicates micrometastases

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Abstract

Cancer therapy is a double-edged sword, as surgery and chemotherapy can induce an inflammatory/immunosuppressive injury response that promotes dormancy escape and tumor recurrence. We hypothesized that these events could be altered by early blockade of the inflammatory cascade and/or by accelerating the resolution of inflammation. Preoperative, but not postoperative, administration of the nonsteroidal antiinflammatory drug ketorolac and/or resolvins, a family of specialized proresolving autacoid mediators, eliminated micrometastases in multiple tumor-resection models, resulting in long-term survival. Ketorolac unleashed anticancer T cell immunity that was augmented by immune checkpoint blockade, negated by adjuvant chemotherapy, and dependent on inhibition of the COX-1/thromboxane A2 (TXA2) pathway. Preoperative stimulation of inflammation resolution via resolvins (RvD2, RvD3, and RvD4) inhibited metastases and induced T cell responses. Ketorolac and resolvins exhibited synergistic antitumor activity and prevented surgery- or chemotherapy-induced dormancy escape. Thus, simultaneously blocking the ensuing proinflammatory response and activating endogenous resolution programs before surgery may eliminate micrometastases and reduce tumor recurrence.

Authors

Dipak Panigrahy, Allison Gartung, Jun Yang, Haixia Yang, Molly M. Gilligan, Megan L. Sulciner, Swati S. Bhasin, Diane R. Bielenberg, Jaimie Chang, Birgitta A. Schmidt, Julia Piwowarski, Anna Fishbein, Dulce Soler-Ferran, Matthew A. Sparks, Steven J. Staffa, Vidula Sukhatme, Bruce D. Hammock, Mark W. Kieran, Sui Huang, Manoj Bhasin, Charles N. Serhan, Vikas P. Sukhatme

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