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Prognostic Influences of B-cell Lymphoma 2-positive Expression on Late Recurrence in Breast Cancer

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Specialty General Surgery
Date 2023 Jul 13
PMID 37441325
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Abstract

Purpose: B-cell lymphoma 2 (BCL2) has an antiapoptotic role, however, has resulted in it being a powerful favorable prognostic factor in breast cancer. Several studies revealed BCL2 is strongly associated with a lower rate of early recurrence after initial treatment in breast cancer patients, but study of a prolonged effect after 5 years is lacking. We investigated BCL2 as a prognostic factor in breast cancer in comparison to early and late recurrence.

Methods: We retrieved data from 2,198 patients with primary breast cancer who underwent surgical treatment and adjuvant treatment at the breast cancer center between 2005 and 2015. Each molecular subtype was classified, and Ki-67 and BCL2 were also assessed by immunohistochemistry. BCL2 and the association between molecular subtypes were assessed in early and late recurrences, respectively. Five-year postrecurrence survival and BCL2 were also assessed.

Results: The BCL2-positive group was associated with favorable clinicopathologic characteristics. The time to recurrence was significantly longer in the BCL2-positive group (P = 0.035). Late recurrence after 5 years was higher in the BCL2-positive group (P = 0.029). In multivariate survival analysis, tumor size and BCL2-positive expression were the only independent prognostic factors for late recurrence (P = 0.004). In the patients with recurrence, 5-year postrecurrence survival was significantly higher in the BCL2-positive group (P < 0.001).

Conclusion: Our result showed that prognosis was better in BCL2-positive patients compared to BCL2-negative patients at late recurrence. We suggested that BCL2 expression could be used as a marker to help determine additional adjuvant therapy or extended hormone therapy in hormone-dependent breast cancer.

References
1.
van Slooten H, Clahsen P, Van Dierendonck J, Duval C, Pallud C, Mandard A . Expression of Bcl-2 in node-negative breast cancer is associated with various prognostic factors, but does not predict response to one course of perioperative chemotherapy. Br J Cancer. 1996; 74(1):78-85. PMC: 2074622. DOI: 10.1038/bjc.1996.319. View

2.
Wangchinda P, Ithimakin S . Factors that predict recurrence later than 5 years after initial treatment in operable breast cancer. World J Surg Oncol. 2016; 14(1):223. PMC: 4995804. DOI: 10.1186/s12957-016-0988-0. View

3.
Callagy G, Pharoah P, Pinder S, Hsu F, Nielsen T, Ragaz J . Bcl-2 is a prognostic marker in breast cancer independently of the Nottingham Prognostic Index. Clin Cancer Res. 2006; 12(8):2468-75. DOI: 10.1158/1078-0432.CCR-05-2719. View

4.
Teixeira C, Reed J, PRATT M . Estrogen promotes chemotherapeutic drug resistance by a mechanism involving Bcl-2 proto-oncogene expression in human breast cancer cells. Cancer Res. 1995; 55(17):3902-7. View

5.
Callagy G, Webber M, Pharoah P, Caldas C . Meta-analysis confirms BCL2 is an independent prognostic marker in breast cancer. BMC Cancer. 2008; 8:153. PMC: 2430210. DOI: 10.1186/1471-2407-8-153. View