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Ha JY, Kim JE, Lee HJ, Jeong JH, Ahn JH, Jung KH, Gong G, Chae EY, Kim HH, Chung IY, Ko BS, Kim SB. Tumor-Infiltrating Lymphocytes in Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer Receiving Neoadjuvant Docetaxel, Carboplatin, Trastuzumab, and Pertuzumab. J Breast Cancer 2021; 24:359-366. [PMID: 34352937 PMCID: PMC8410619 DOI: 10.4048/jbc.2021.24.e36] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/03/2021] [Accepted: 06/23/2021] [Indexed: 01/09/2023] Open
Abstract
PURPOSE The tumor-infiltrating lymphocytes (TILs) expression in breast cancer is a positive prognostic marker for certain breast cancer subtypes. We evaluated the efficacy of dual anti-human epidermal growth factor receptor 2 (HER2) blockade in HER2-positive breast cancer and hypothesized that high TILs tumors are associated with better outcomes. METHODS A total of 176 patients who were treated with neoadjuvant docetaxel, carboplatin, trastuzumab, and pertuzumab (TCHP) between December 2015 and December 2018 were reviewed. They were grouped based on a cut-off value of the stromal TILs grade (≤ 20% TILs, > 20% TILs). RESULTS In total, 107 patients (60.8%) achieved pathological complete response (pCR). Hormone receptor (HR)-negativity (p = 0.001) and a high TILs grade (p = 0.022) were independent predictors of pCR. Among the HR-negative patients, high TILs tumors were significantly associated with pCR (p = 0.035). CONCLUSION HR status and the TILs grade are significantly correlated with pCR in dual anti-HER2 neoadjuvant therapy. The evaluation of the TILs at baseline may be beneficial for predicting pCR in HER2-positive breast cancer.
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Affiliation(s)
- Joo Young Ha
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Division of Hemato-Oncology, Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jeong Eun Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee Jin Lee
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Ho Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin-Hee Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyung Hae Jung
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gyungyub Gong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Young Chae
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hak Hee Kim
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Il Yong Chung
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Beom Seok Ko
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Bae Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Griguolo G, Pascual T, Dieci MV, Guarneri V, Prat A. Interaction of host immunity with HER2-targeted treatment and tumor heterogeneity in HER2-positive breast cancer. J Immunother Cancer 2019; 7:90. [PMID: 30922362 PMCID: PMC6439986 DOI: 10.1186/s40425-019-0548-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/27/2019] [Indexed: 12/18/2022] Open
Abstract
Growing evidence suggests a clear role of the host immune system in HER2+ breast cancer. In addition, HER2+ breast cancer is generally considered more immunogenic than hormone receptor-positive (HR+)/HER2-, and specific molecular HER2+ subgroups (e.g. HER2-enriched disease) are more immunogenic than others (e.g. Luminal A or B). From a clinical perspective, the immune system plays a relevant prognostic role in HER2+ breast cancer and contributes to the therapeutic effects of trastuzumab. However, as more HER2-targeted agents become available, a better understanding of the role played by the immune system in modulating therapy response to different agents will be needed. Furthermore, the recent introduction in oncology of immune checkpoint inhibitors capable of unleashing anti-tumor immune response opens new possibilities for therapeutic combinations in HER2+ breast cancer. Here, we review the current pre-clinical and clinical data on the interplay between the immune system and HER2+ breast cancer, focusing on different HER2-targeted treatments and the biological heterogeneity that exists within HER2+ disease. Finally, we discuss new therapeutic approaches exploiting the immune system to increase activity or revert resistance to HER2-targeted agents.
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Affiliation(s)
- Gaia Griguolo
- Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Barcelona, Spain
- Department of Medical Oncology, Hospital Clínic, Barcelona, Spain
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Medical Oncology 2, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Tomás Pascual
- Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Barcelona, Spain
- Department of Medical Oncology, Hospital Clínic, Barcelona, Spain
| | - Maria Vittoria Dieci
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Medical Oncology 2, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Valentina Guarneri
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Medical Oncology 2, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Aleix Prat
- Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Barcelona, Spain.
- Department of Medical Oncology, Hospital Clínic, Barcelona, Spain.
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