Breast cancer immunotherapy has shown promise, but its clinical efficacy remains limited, especially for hormone receptor positive (HR+)/HER2-negative breast cancer. While immune checkpoint inhibitors combined with chemotherapy have benefitted some early-stage and metastatic triple-negative breast cancer patients, HR+/HER2-negative cases have seen fewer improvements. Recent neoadjuvant trials indicate that early-stage HR+/HER2-negative breast cancers might respond better to immunotherapy strategies that amplify tumor-infiltrating lymphocytes (TILs) through dual PD-(L)1/CTLA-4 checkpoint inhibition before surgery and chemotherapy. This approach could enhance the immune response in the tumor microenvironment and improve outcomes for this challenging breast cancer subtype. Increased TILs are associated with improved neoadjuvant chemotherapy (NACT) responses across breast cancer subtypes. Recently, researchers Haven R. Garber, Sreyashi Basu, Sonali Jindal, Zhong He, Khoi Chu, Akshara Singareeka Raghavendra, Clinton Yam, Lumarie Santiago, Beatriz E. Adrada, Padmanee Sharma, Elizabeth A. Mittendorf, and Jennifer K. Litton from the University of Texas MD Anderson Cancer Center, Brigham and Women’s Hospital, Dana-Farber Brigham Cancer Center, and Harvard Medical School hypothesized that amplifying TILs via dual checkpoint blockade would enhance the response to subsequent NACT in breast tumors. Full blog - https://www.oncotarget.org/2024/06/20/impact-of-dual-immunotherapies-before-surgery-in-hr-her2-negative-breast-cancer/ Paper DOI -https://doi.org/10.18632/oncotarget.28567 Correspondence to - Haven R. Garber - hrgarber@mdanderson.org Video short - https://www.youtube.com/watch?v=PHpndZJHB_c Sign up for free Altmetric alerts about this article - https://oncotarget.altmetric.com/details/email_updates?id=10.18632%2Foncotarget.28567 Subscribe for free publication alerts from Oncotarget - https://www.oncotarget.com/subscribe/ Keywords - cancer, breast cancer, ER positive, immunotherapy, neoadjuvant chemotherapy, tumor microenvironment About Oncotarget Oncotarget (a primarily oncology-focused, peer-reviewed, open access journal) aims to maximize research impact through insightful peer-review; eliminate borders between specialties by linking different fields of oncology, cancer research and biomedical sciences; and foster application of basic and clinical science. Oncotarget is indexed and archived by PubMed/Medline, PubMed Central, Scopus, EMBASE, META (Chan Zuckerberg Initiative) (2018-2022), and Dimensions (Digital Science). To learn more about Oncotarget, please visit https://www.oncotarget.com and connect with us: Facebook - https://www.facebook.com/Oncotarget/ X - https://twitter.com/oncotarget Instagram - https://www.instagram.com/oncotargetjrnl/ YouTube - https://www.youtube.com/@OncotargetJournal LinkedIn - https://www.linkedin.com/company/oncotarget Pinterest - https://www.pinterest.com/oncotarget/ Reddit - https://www.reddit.com/user/Oncotarget/ Spotify - https://open.spotify.com/show/0gRwT6BqYWJzxzmjPJwtVh MEDIA@IMPACTJOURNALS.COM