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Cited by Other Article(s)

Moragon S, Hernando C, Martinez-Martinez MT, Tapia M, Ortega-Morillo B, Lluch A, Bermejo B, Cejalvo JM. Immunological Landscape of HER-2 Positive Breast Cancer. Cancers (Basel) 2022;14:3167. [PMID: 35804943 PMCID: PMC9265068 DOI: 10.3390/cancers14133167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 12/10/2022] Open

Affiliation(s)

Santiago Moragon Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.)
Cristina Hernando Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.)
Maria Teresa Martinez-Martinez Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.)
Marta Tapia Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.)
Belen Ortega-Morillo Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.)
Ana Lluch Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.) Instituto de Salud Carlos III, CIBERONC (Centro De Investigacion Biomedica En Red De Cancer), 28220 Madrid, Spain
Begoña Bermejo Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.) Instituto de Salud Carlos III, CIBERONC (Centro De Investigacion Biomedica En Red De Cancer), 28220 Madrid, Spain
Juan Miguel Cejalvo Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, 46010 Valencia, Spain; (S.M.); (C.H.); (M.T.M.-M.); (M.T.); (B.O.-M.); (A.L.); (B.B.) Instituto de Salud Carlos III, CIBERONC (Centro De Investigacion Biomedica En Red De Cancer), 28220 Madrid, Spain

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Dieci MV, Miglietta F, Guarneri V. Immune Infiltrates in Breast Cancer: Recent Updates and Clinical Implications. Cells 2021;10:223. [PMID: 33498711 PMCID: PMC7911608 DOI: 10.3390/cells10020223] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 12/18/2022] Open

Abstract

In recent decades, the increasing interest in the field of immunotherapy has fostered an intense investigation of the breast cancer (BC) immune microenvironment. In this context, tumor-infiltrating lymphocytes (TILs) have emerged as a clinically relevant and highly reproducible biomarker capable of affecting BC prognosis and response to treatment. Indeed, the evaluation of TILs on primary tumors proved to be strongly prognostic in triple-negative (TN) BC patients treated with either adjuvant or neoadjuvant chemotherapy, as well as in early TNBC patients not receiving any systemic treatment, thus gaining level-1b evidence in this setting. In addition, a strong relationship between TILs and pathologic complete response after neoadjuvant chemotherapy has been reported in all BC subtypes and the prognostic role of higher TILs in early HER2-positive breast cancer patients has also been demonstrated. The interest in BC immune infiltrates has been further fueled by the introduction of the first immune checkpoint inhibitors in the treatment armamentarium of advanced TNBC in patients with PD-L1-positive status by FDA-approved assays. However, despite these advances, a biomarker capable of reliably and exhaustively predicting immunotherapy benefit in BC is still lacking, highlighting the imperative need to further deepen this issue. Finally, more comprehensive evaluation of immune infiltrates integrating both the quantity and quality of tumor-infiltrating immune cells and incorporation of TILs in composite scores encompassing other clinically or biologically relevant biomarkers, as well as the adoption of software-based and/or machine learning platforms for a more comprehensive characterization of BC immune infiltrates, are emerging as promising strategies potentially capable of optimizing patient selection and stratification in the research field. In the present review, we summarize available evidence and recent updates on immune infiltrates in BC, focusing on current clinical applications, potential clinical implications and major unresolved issues.

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