| Autor: |
Fara Brasó-Maristany, Miriam Sansó, Nuria Chic, Débora Martínez, Blanca González-Farré, Esther Sanfeliu, Lucio Ghiglione, Esther Carcelero, Javier Garcia-Corbacho, Marcelo Sánchez, Dolors Soy, Pedro Jares, Vicente Peg, Cristina Saura, Montserrat Muñoz, Aleix Prat, Ana Vivancos |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Frontiers in Oncology, Vol 11 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2234-943X |
| DOI: |
10.3389/fonc.2021.710596 |
| Popis: |
The immune checkpoint inhibitor atezolizumab is approved for PD-L1-positive triple-negative breast cancer (TNBC). However, no activity of atezolizumab in PD-L1-negative TNBC has been reported to date. Here, we present the case study of a woman with TNBC with low tumor infiltrating lymphocytes and PD-L1-negative disease, which achieved a significant response to atezolizumab monotherapy and durable response after the combination of atezolizumab and nab-paclitaxel. The comprehensive genomic analysis that we performed in her tumor and plasma samples revealed high tumor mutational burden (TMB), presence of the APOBEC genetic signatures, high expression of the tumor inflammation signature, and a HER2-enriched subtype by the PAM50 assay. Some of these biomarkers have been shown to independently predict response to immunotherapy in other tumors and may explain the durable response in our patient. Our work warrants further translational studies to identify biomarkers of response to immune checkpoint inhibitors in TNBC beyond PD-L1 expression and to better select patients that will benefit from immunotherapy. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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