PMID- 33165709 OWN - NLM STAT- MEDLINE DCOM- 20210623 LR - 20210623 IS - 1573-7217 (Electronic) IS - 0167-6806 (Linking) VI - 185 IP - 3 DP - 2021 Feb TI - Tumor-infiltrating lymphocytes benefit prediction of axillary pathologic response and prognostication of event-free survival in HER2-positive and biopsy-proven node-positive breast cancer treated with neoadjuvant therapy. PG - 629-638 LID - 10.1007/s10549-020-06015-4 [doi] AB - PURPOSE: The present study evaluated tumor-infiltrating lymphocytes (TILs) based on standardized scoring method and investigated its predictive value for axillary pathologic complete response (apCR) and prognostic significance for event-free survival (EFS) in neoadjuvant-treated HER2-positive breast cancer with initially biopsy-proven nodal metastasis. METHODS: We assessed TILs in a total of 187 pretherapeutic core biopsies of primary tumors. Receiver operating characteristic curve analysis was conducted to calculate the optimal cut-off point of TILs in discriminating axillary pathologic response. The associations of TILs with apCR or EFS were investigated by univariate and multivariate analyses. RESULTS: Receiver operating characteristic curve analysis identified a 10% cut-off point of TILs that optimally discriminated apCR from non-apCR (P < 0.001). High TILs were determined as TILs >/= 10%, and tumor with TILs < 10% was defined as lymphocyte-depleted breast cancer (LDBC). The apCR rate of the entire cohort was 66.3% (124/187). Tumors with high TILs had a significantly higher apCR rate compared with LDBC (78.5% vs. 43.9%; P < 0.001). High TILs (P < 0.001), breast pathologic complete response (P = 0.006), and negative status of hormone receptor (P = 0.021) were independent predictors for apCR. High TILs were a markedly powerful predictor with an odds ratio of 4.01 (P < 0.001). EFS was significantly better among patients with high TILs than among those with LDBC (P < 0.001). Univariate and multivariate analyses indicated that high TILs (P = 0.019) and apCR (P = 0.013) were independent predictors for favorable EFS. CONCLUSIONS: TILs have predictive value for apCR and prognostic significance for EFS in initially node-positive and HER2-positive breast cancer treated with neoadjuvant therapy. LDBC (TILs < 10%) has a significantly unfavorable impact on apCR rate and EFS. FAU - Liu, Shiwei AU - Liu S AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Zeng, Shiyan AU - Zeng S AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Xia, Li AU - Xia L AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Yu, Miao AU - Yu M AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Zhang, Xin AU - Zhang X AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Yang, Hong AU - Yang H AD - Department of Pathology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Ji, Juan AU - Ji J AD - Department of Pathology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Dong, Hao AU - Dong H AD - Department of Pathology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Zhang, Jianhui AU - Zhang J AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. FAU - Zhang, Purong AU - Zhang P AUID- ORCID: 0000-0003-4317-1355 AD - Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, China. PurongZhang@outlook.com. LA - eng PT - Journal Article DEP - 20201109 PL - Netherlands TA - Breast Cancer Res Treat JT - Breast cancer research and treatment JID - 8111104 RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Antineoplastic Combined Chemotherapy Protocols MH - Biopsy MH - *Breast Neoplasms/drug therapy MH - Female MH - Humans MH - Lymphocytes, Tumor-Infiltrating MH - *Neoadjuvant Therapy MH - Prognosis MH - Progression-Free Survival MH - Receptor, ErbB-2/genetics OTO - NOTNLM OT - Axillary pathologic response OT - HER2 OT - Neoadjuvant therapy OT - Survival OT - Tumor-infiltrating lymphocytes EDAT- 2020/11/10 06:00 MHDA- 2021/06/24 06:00 CRDT- 2020/11/09 14:26 PHST- 2020/02/29 00:00 [received] PHST- 2020/11/03 00:00 [accepted] PHST- 2020/11/10 06:00 [pubmed] PHST- 2021/06/24 06:00 [medline] PHST- 2020/11/09 14:26 [entrez] AID - 10.1007/s10549-020-06015-4 [pii] AID - 10.1007/s10549-020-06015-4 [doi] PST - ppublish SO - Breast Cancer Res Treat. 2021 Feb;185(3):629-638. doi: 10.1007/s10549-020-06015-4. Epub 2020 Nov 9.