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Deng, Jiehui; Wang, Eric S; Jenkins, Russell W; Li, Shuai; Dries, Ruben; Yates, Kathleen; Chhabra, Sandeep; Huang, Wei; Liu, Hongye; Aref, Amir R; Ivanova, Elena; Paweletz, Cloud P; Bowden, Michaela; Zhou, Chensheng W; Herter-Sprie, Grit S; Sorrentino, Jessica A; Bisi, John E; Lizotte, Patrick H; Merlino, Ashley A; Quinn, Max M; Bufe, Lauren E; Yang, Annan; Zhang, Yanxi; Zhang, Hua; Gao, Peng; Chen, Ting; Cavanaugh, Megan E; Rode, Amanda J; Haines, Eric; Roberts, Patrick J; Strum, Jay C; Richards, William G; Lorch, Jochen H; Parangi, Sareh; Gunda, Viswanath; Boland, Genevieve M; Bueno, Raphael; Palakurthi, Sangeetha; Freeman, Gordon J; Ritz, Jerome; Haining, W Nicholas; Sharpless, Norman E; Arthanari, Haribabu; Shapiro, Geoffrey I; Barbie, David A; Gray, Nathanael S; Wong, Kwok-Kin
Cancer discovery, 02/2018, Letnik: 8, Številka: 2Journal Article
Immune checkpoint blockade, exemplified by antibodies targeting the PD-1 receptor, can induce durable tumor regressions in some patients. To enhance the efficacy of existing immunotherapies, we screened for small molecules capable of increasing the activity of T cells suppressed by PD-1. Here, we show that short-term exposure to small-molecule inhibitors of cyclin-dependent kinases 4 and 6 (CDK4/6) significantly enhances T-cell activation, contributing to antitumor effects , due in part to the derepression of NFAT family proteins and their target genes, critical regulators of T-cell function. Although CDK4/6 inhibitors decrease T-cell proliferation, they increase tumor infiltration and activation of effector T cells. Moreover, CDK4/6 inhibition augments the response to PD-1 blockade in a novel organotypic tumor spheroid culture system and in multiple murine syngeneic models, thereby providing a rationale for combining CDK4/6 inhibitors and immunotherapies. Our results define previously unrecognized immunomodulatory functions of CDK4/6 and suggest that combining CDK4/6 inhibitors with immune checkpoint blockade may increase treatment efficacy in patients. Furthermore, our study highlights the critical importance of identifying complementary strategies to improve the efficacy of immunotherapy for patients with cancer. .
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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