|
1
|
Peg V, López-García MÁ, Comerma L, Peiró G, García-Caballero T, López ÁC, Suárez-Gauthier A, Ruiz I, Rojo F. PD-L1 testing based on the SP142 antibody in metastatic triple-negative breast cancer: summary of an expert round-table discussion. Future Oncol 2021; 17:1209-1218. [DOI: 10.2217/fon-2020-1100] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is more aggressive than other breast cancer subtypes. TNBC is characterized by increased expression of Programmed Death-ligand 1 (PD-L1), a signal used by many tumors to escape the immune response. Expression of PD-L1 is a positive predictor of response to immunotherapy; therefore, it should be investigated in TNBC in order to select patients who may benefit from anti-PD-L1 therapies. While many PD-L1 assays are available, only the VENTANA platform with the anti-PD-L1 (SP142) antibody is licensed as a companion diagnostic device for selecting patients with metastatic/advanced TNBC who are candidates for treatment with atezolizumab. In this article, we provide a summary of an expert round-table discussion about PD-L1 testing, using the SP142 antibody in metastatic TNBC.
Collapse
Affiliation(s)
- Vicente Peg
- Departamento de Anatomia Patològica, Vall d’Hebron Hospital Universitari, Barcelona Hospital Campus, Barcelona, Spain; Grupo de Patología Molecular, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; Centro de Investigación Biomédica en Red en Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - María Ángeles López-García
- Servicio de Anatomía Patológica, Hospital Universitario Virgen del Rocío, Sevilla (Spain); Centro de Investigacion Biomédica en Red en Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Laura Comerma
- Departamento de Anatomía Patológica, Hospital del Mar, Barcelona, Spain
| | - Gloria Peiró
- Departamento de Patología, Hospital General Universitario de Alicante, Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
| | - Tomás García-Caballero
- Departamento de Ciencias Morfológicas, Facultad de Medicina y Odontología, Universidad de Santiago, Santiago de Compostela, Spain
| | - Ángel Concha López
- Servicio de Anatomía Patológica, Complejo Hospitalario Universitario A Coruña, Biobanco INIBIC, A Coruña, Spain
| | - Ana Suárez-Gauthier
- Departamento de Anatomía Patológica, Laboratorio de Dianas Terapéuticas, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Irune Ruiz
- Servicio de Patología, Hospital Universitario Donostia, Donostia, Spain
| | - Federico Rojo
- Servicio de Anatomía Patológica, IIS-Fundación Jiménez Díaz-CIBERONC, Madrid, Spain
| |
Collapse
|
|
2
|
Triple negative metaplastic breast carcinoma presenting in the background of atypical microglandular adenosis with candidacy for atezolizumab immunotherapy. HUMAN PATHOLOGY: CASE REPORTS 2020. [DOI: 10.1016/j.ehpc.2020.200398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|