Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy

Currently, therapy response cannot be accurately predicted in HER2-negative breast cancer (BC). Measuring stromal tumour-infiltrating lymphocytes (sTILs) and mediators of the tumour microenvironment and characterizing tumour-infiltrating immune cells (TIICs) may improve treatment response in the neo...

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Authors: Arqueros, Cristina|||0000-0003-1249-2324; Gallardo, Alberto|||0000-0002-2514-2027; Vidal, Silvia|||0000-0002-3909-6682; Osuna Gómez, Rubén|||0000-0003-2875-4405; Tibau Martorell, Ariadna|||0000-0003-0229-6987; Bell, Olga|||0009-0000-2858-6187; Ramon y Cajal, Teresa|||0000-0003-3490-3585; Lerma Puertas, Enrique|||0000-0001-7908-2747; Lobato-Delgado, Bárbara|||0000-0001-6218-5774; Salazar, Juliana|||0000-0002-3581-4499; Barnadas i Molins, Agustí|||0000-0002-0429-1349
Format: Article
Publication date:2024
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:291402
Online Access:https://ddd.uab.cat/record/291402
https://dx.doi.org/urn:doi:10.3390/ijms25052627
Access Level:Open access
Keyword:Breast cancer
Neoadjuvant chemotherapy
Stromal tumour-infiltrating lymphocytes
Tumour-infiltrating immune cells
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author Arqueros, Cristina|||0000-0003-1249-2324
author2 Gallardo, Alberto|||0000-0002-2514-2027
Vidal, Silvia|||0000-0002-3909-6682
Osuna Gómez, Rubén|||0000-0003-2875-4405
Tibau Martorell, Ariadna|||0000-0003-0229-6987
Bell, Olga|||0009-0000-2858-6187
Ramon y Cajal, Teresa|||0000-0003-3490-3585
Lerma Puertas, Enrique|||0000-0001-7908-2747
Lobato-Delgado, Bárbara|||0000-0001-6218-5774
Salazar, Juliana|||0000-0002-3581-4499
Barnadas i Molins, Agustí|||0000-0002-0429-1349
author2_role author
author
author
author
author
author
author
author
author
author
author_browse Arqueros, Cristina|||0000-0003-1249-2324
Barnadas i Molins, Agustí|||0000-0002-0429-1349
Bell, Olga|||0009-0000-2858-6187
Gallardo, Alberto|||0000-0002-2514-2027
Lerma Puertas, Enrique|||0000-0001-7908-2747
Lobato-Delgado, Bárbara|||0000-0001-6218-5774
Osuna Gómez, Rubén|||0000-0003-2875-4405
Ramon y Cajal, Teresa|||0000-0003-3490-3585
Salazar, Juliana|||0000-0002-3581-4499
Tibau Martorell, Ariadna|||0000-0003-0229-6987
Vidal, Silvia|||0000-0002-3909-6682
author_facet Arqueros, Cristina|||0000-0003-1249-2324
Gallardo, Alberto|||0000-0002-2514-2027
Vidal, Silvia|||0000-0002-3909-6682
Osuna Gómez, Rubén|||0000-0003-2875-4405
Tibau Martorell, Ariadna|||0000-0003-0229-6987
Bell, Olga|||0009-0000-2858-6187
Ramon y Cajal, Teresa|||0000-0003-3490-3585
Lerma Puertas, Enrique|||0000-0001-7908-2747
Lobato-Delgado, Bárbara|||0000-0001-6218-5774
Salazar, Juliana|||0000-0002-3581-4499
Barnadas i Molins, Agustí|||0000-0002-0429-1349
author_role author
collection Dipòsit Digital de Documents de la UAB
description Currently, therapy response cannot be accurately predicted in HER2-negative breast cancer (BC). Measuring stromal tumour-infiltrating lymphocytes (sTILs) and mediators of the tumour microenvironment and characterizing tumour-infiltrating immune cells (TIICs) may improve treatment response in the neoadjuvant setting. Tumour tissue and peripheral blood samples were retrospectively collected from 118 patients, and sTILs were evaluated. Circulating exosomes and myeloid-derived suppressor cells were determined by flow cytometry. TIICs markers (CD4, CD8, CD20, CD1a, and CD68) were assessed immunohistochemically. High sTILs were significantly associated with pathological complete response (pCR; p = 0.048) and event-free survival (EFS; p = 0.027). High-CD68 cells were significantly associated with pCR in triple-negative (TN, p = 0.027) and high-CD1a cells with EFS in luminal-B (p = 0.012) BC. Cluster analyses of TIICs revealed two groups of tumours (C1 and C2) that had different immune patterns and clinical outcomes. An immunoscore based on clinicopathological variables was developed to identify high risk (C1) or low-risk (C2) patients. Additionally, cluster analyses revealed two groups of tumours for both luminal-B and TNBC. Our findings support the association of sTILs with pCR and show an immunological component in a subset of patients with HER2-negative BC. Our immunoscore may be useful for future escalation or de-escalation treatments.
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spelling Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy Arqueros, Cristina|||0000-0003-1249-2324 Gallardo, Alberto|||0000-0002-2514-2027 Vidal, Silvia|||0000-0002-3909-6682 Osuna Gómez, Rubén|||0000-0003-2875-4405 Tibau Martorell, Ariadna|||0000-0003-0229-6987 Bell, Olga|||0009-0000-2858-6187 Ramon y Cajal, Teresa|||0000-0003-3490-3585 Lerma Puertas, Enrique|||0000-0001-7908-2747 Lobato-Delgado, Bárbara|||0000-0001-6218-5774 Salazar, Juliana|||0000-0002-3581-4499 Barnadas i Molins, Agustí|||0000-0002-0429-1349 Breast cancer Neoadjuvant chemotherapy Stromal tumour-infiltrating lymphocytes Tumour-infiltrating immune cells Currently, therapy response cannot be accurately predicted in HER2-negative breast cancer (BC). Measuring stromal tumour-infiltrating lymphocytes (sTILs) and mediators of the tumour microenvironment and characterizing tumour-infiltrating immune cells (TIICs) may improve treatment response in the neoadjuvant setting. Tumour tissue and peripheral blood samples were retrospectively collected from 118 patients, and sTILs were evaluated. Circulating exosomes and myeloid-derived suppressor cells were determined by flow cytometry. TIICs markers (CD4, CD8, CD20, CD1a, and CD68) were assessed immunohistochemically. High sTILs were significantly associated with pathological complete response (pCR; p = 0.048) and event-free survival (EFS; p = 0.027). High-CD68 cells were significantly associated with pCR in triple-negative (TN, p = 0.027) and high-CD1a cells with EFS in luminal-B (p = 0.012) BC. Cluster analyses of TIICs revealed two groups of tumours (C1 and C2) that had different immune patterns and clinical outcomes. An immunoscore based on clinicopathological variables was developed to identify high risk (C1) or low-risk (C2) patients. Additionally, cluster analyses revealed two groups of tumours for both luminal-B and TNBC. Our findings support the association of sTILs with pCR and show an immunological component in a subset of patients with HER2-negative BC. Our immunoscore may be useful for future escalation or de-escalation treatments. https://ddd.uab.cat/record/291402 https://dx.doi.org/urn:doi:10.3390/ijms25052627
spellingShingle Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
Arqueros, Cristina|||0000-0003-1249-2324
Breast cancer
Neoadjuvant chemotherapy
Stromal tumour-infiltrating lymphocytes
Tumour-infiltrating immune cells
title Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
title_full Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
title_fullStr Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
title_full_unstemmed Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
title_short Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
title_sort Clinical Relevance of Tumour-Infiltrating Immune Cells in HER2-Negative Breast Cancer Treated with Neoadjuvant Therapy
topic Breast cancer
Neoadjuvant chemotherapy
Stromal tumour-infiltrating lymphocytes
Tumour-infiltrating immune cells
topic_facet Breast cancer
Neoadjuvant chemotherapy
Stromal tumour-infiltrating lymphocytes
Tumour-infiltrating immune cells
url https://ddd.uab.cat/record/291402
https://dx.doi.org/urn:doi:10.3390/ijms25052627