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Title: | Matrix Metalloproteinase-9 Expression Is Associated with the Absence of Response to Neoadjuvant Chemotherapy in Triple-Negative Breast Cancer Patients |
Author: | Lejeune, Marylène Reverté, Laia Gallardo, Noèlia Sauras, Esther Bosch, Ramon Mata, Daniel Roso Llorach, Albert Petit, Anna Peg, Vicente Riu, Francisco García Fontgivell, Joan Relea, Fernanda Vieites, Begoña Cruz Merino, Luis de la Arenas Prat, Meritxell Rodriguez, Valeri Galera, Juana Korzynska, Anna Plancoulaine, Benoît Álvaro, Tomás López, Carlos |
Keywords: | Adjuvants immunològics Càncer de mama Immunological adjuvants Breast cancer |
Issue Date: | 11-Jul-2023 |
Publisher: | MDPI AG |
Abstract: | Triple-negative breast cancer (TNBC) is particularly challenging due to the weak or absent response to therapeutics and its poor prognosis. The effectiveness of neoadjuvant chemotherapy (NAC) response is strongly influenced by changes in elements of the tumor microenvironment (TME). This work aimed to characterize the residual TME composition in 96 TNBC patients using immunohistochemistry and in situ hybridization techniques and evaluate its prognostic implications for partial responders vs. non-responders. Compared with non-responders, partial responders containing higher levels of CD83+ mature dendritic cells, FOXP3+ regulatory T cells, and IL-15 expression but lower CD138+ cell concentration exhibited better OS and RFS. However, along with tumor diameter and positive nodal status at diagnosis, matrix metalloproteinase-9 (MMP-9) expression in the residual TME was identified as an independent factor associated with the impaired response to NAC. This study yields new insights into the key components of the residual tumor bed, such as MMP-9, which is strictly associated with the lack of a pathological response to NAC. This knowledge might help early identification of TNBC patients less likely to respond to NAC and allow the establishment of new therapeutic targets. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/ijms241411297 |
It is part of: | International Journal of Molecular Sciences, 2023, vol. 24, num. 14 |
URI: | http://hdl.handle.net/2445/204323 |
Related resource: | https://doi.org/10.3390/ijms241411297 |
ISSN: | 1422-0067 |
Appears in Collections: | Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL)) |
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