التفاصيل البيبلوغرافية
| العنوان: |
WEE1 inhibition enhances the antitumor immune response to PD-L1 blockade by the concomitant activation of STING and STAT1 pathways in SCLC. |
| المؤلفون: |
Taniguchi, Hirokazu, Caeser, Rebecca, Chavan, Shweta S., Zhan, Yingqian A., Chow, Andrew, Manoj, Parvathy, Uddin, Fathema, Kitai, Hidenori, Qu, Rui, Hayatt, Omar, Shah, Nisargbhai S., Quintanal Villalonga, Álvaro, Allaj, Viola, Nguyen, Evelyn M., Chan, Joseph, Michel, Adam O., Mukae, Hiroshi, de Stanchina, Elisa, Rudin, Charles M., Sen, Triparna |
| المصدر: |
Cell Reports; May2022, Vol. 39 Issue 7, pN.PAG-N.PAG, 1p |
| مستخلص: |
Small cell lung cancers (SCLCs) have high mutational burden but are relatively unresponsive to immune checkpoint blockade (ICB). Using SCLC models, we demonstrate that inhibition of WEE1, a G2/M checkpoint regulator induced by DNA damage, activates the STING-TBK1-IRF3 pathway, which increases type I interferons (IFN-α and IFN-β) and pro-inflammatory chemokines (CXCL10 and CCL5), facilitating an immune response via CD8+ cytotoxic T cell infiltration. We further show that WEE1 inhibition concomitantly activates the STAT1 pathway, increasing IFN-γ and PD-L1 expression. Consistent with these findings, combined WEE1 inhibition (AZD1775) and PD-L1 blockade causes remarkable tumor regression, activation of type I and II interferon pathways, and infiltration of cytotoxic T cells in multiple immunocompetent SCLC genetically engineered mouse models, including an aggressive model with stabilized MYC. Our study demonstrates cell-autonomous and immune-stimulating activity of WEE1 inhibition in SCLC models. Combined inhibition of WEE1 plus PD-L1 blockade represents a promising immunotherapeutic approach in SCLC. [Display omitted] • WEE1 inhibition causes activation of STING and STAT1 pathways in SCLC • WEE1 inhibitor plus ICB mediates the innate and adaptive anti-immune response • Combined WEE1 inhibitor plus ICB suppresses tumor growth in SCLC mouse models Taniguchi et al. show that WEE1 inhibition activates cGAS-STING, which increases type I interferons and pro-inflammatory chemokines, facilitating an immune response via CD8+ cytotoxic T cell infiltration in SCLC. WEE1 inhibition concomitantly activates STAT1 signaling, increasing IFN-γ and PD-L1 expression, and enhances the efficacy of PD-L1 blockade in SCLC mouse models. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
