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- W4220803731 abstract "Abstract Background: Tubulointerstitial nephritis antigen-like 1 (Tinagl1) is reported to inhibit integrin and epidermal growth factor receptor (EGFR) and suppress tumor metastasis and growth in breast cancer. We investigated the association between Tinagl1 mRNA expression and clinicopathological factors and prognosis of breast cancer patients with long-term follow-up. The median follow-up period was 12.0 years. Materials and Methods: A total of 599 consecutive primary invasive breast cancer patients with available tissue from surgery in our hospital from 1992 to 2008 were included in this study. We examined the association between Tinagl1 mRNA expression and prognostic and clinicopathological factors using the TaqMan real-time PCR system. Statistical analysis was performed using the Kaplan-Meier method and the Cox proportional hazards model. Results: High expression of Tinagl1 mRNA was associated with significantly better disease-free survival (DFS) and overall survival (OS) than low expression (P=0.003 and P=0.01, respectively). In estrogen receptor (ER)-positive patients, DFS and OS were also better in the high Tinagl1 mRNA expression group (P=0.01 and P=0.03, respectively). However, there was no significant difference in DFS and OS in triple-negative breast cancer. Low Tinagl1 mRNA expression was positively associated with higher tumor grade. Multivariate analysis showed that low Tinagl1 mRNA expression, together with lymph node positivity, was an independent poor prognostic factor in DFS (HR 1.48; 95% CI 1.06-2.05, P=0.02). Conclusions: Our findings suggest that Tinagl1 has a role in the metastasis of breast cancer, and that its expression could be a promising candidate biomarker of prognosis in breast cancer patients. Variablesn(%)DSF Univariate P valueDFS Multivariate P valueHR (95% CI)Nodal status590Negative349 (59.2)1Positive241 (40.8)<0.0001<0.00013.16(2.25-4.45)Tinagl1 mRNA expression599High300 (50.1)1Low299 (49.9)0.0030.021.48(1.06-2.05) Citation Format: Akiko Kato, Naoto Kondo, Yumi Wanifuchi-Endo, Takashi Fujita, Tomoko Asano, Tomoka Hisada, Yasuaki Uemoto, Mitsuo Terada, Tatsuya Toyama. High Tinagl1 expression is a marker of good prognosis in breast cancer [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P4-07-21." @default.
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- W4220803731 date "2022-02-15" @default.
- W4220803731 modified "2023-10-05" @default.
- W4220803731 title "Abstract P4-07-21: High <i>Tinagl1</i> expression is a marker of good prognosis in breast cancer" @default.
- W4220803731 doi "https://doi.org/10.1158/1538-7445.sabcs21-p4-07-21" @default.
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