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BRCA1/2胚系突变对三阴性乳腺癌患者放疗后第二原发肿瘤的影响
Impact of
BRCA 1/2 germline mutation on the incidence of second primary cancer following postoperative radiotherapy in patients with triple-negative breast cancer- 中国癌症杂志 2024年34卷第2期 页码：185-190
- 作者机构：
1. 复旦大学附属肿瘤医院放疗科，复旦大学上海医学院肿瘤学系，上海 200032
2. 复旦大学附属肿瘤医院乳腺外科，复旦大学上海医学院肿瘤学系，上海 200032
- 作者简介：
[ "胡晓钰（ORCID: 0009-0002-4596-6629），本科，技师。" ]
余科达（ORCID: 0000-0002-2883-1282），博士学位，主任医师，复旦大学附属肿瘤医院乳腺外科行政副主任。
- 基金信息：
DOI：10.19401/j.cnki.1007-3639.2024.02.006
中图分类号： R737.9收稿：2023-10-24，
修回：2024-02-18，
纸质出版：2024-02-29
- 稿件说明：
移动端阅览
胡晓钰, 蔡毓文, 叶富贵, 等. BRCA1/2胚系突变对三阴性乳腺癌患者放疗后第二原发肿瘤的影响[J]. 中国癌症杂志, 2024,34(2):185-190.
Xiaoyu HU, Yuwen CAI, Fugui YE, et al. Impact of
BRCA 1/2 germline mutation on the incidence of second primary cancer following postoperative radiotherapy in patients with triple-negative breast cancer[J]. China Oncology, 2024, 34(2): 185-190.胡晓钰, 蔡毓文, 叶富贵, 等. BRCA1/2胚系突变对三阴性乳腺癌患者放疗后第二原发肿瘤的影响[J]. 中国癌症杂志, 2024,34(2):185-190. DOI： 10.19401/j.cnki.1007-3639.2024.02.006.
Xiaoyu HU, Yuwen CAI, Fugui YE, et al. Impact of
BRCA 1/2 germline mutation on the incidence of second primary cancer following postoperative radiotherapy in patients with triple-negative breast cancer[J]. China Oncology, 2024, 34(2): 185-190. DOI： 10.19401/j.cnki.1007-3639.2024.02.006.
摘要
背景与目的：
乳腺癌易感基因1/2（
BRCA
1/2）的编码产物在维持机体基因组稳定性方面发挥着重要的作用。
BRCA
1/2致病突变是否会导致机体对放射线的脆弱度增加，从而诱发第二原发肿瘤尚不清楚。本文旨在探讨
BRCA
1/2基因胚系突变的三阴性乳腺癌患者术后接受放射治疗是否是增加罹患第二原发肿瘤的危险因素。
方法：
基于复旦大学附属肿瘤医院2007年1月1日—2014年12月31日收集的回顾性三阴性乳腺癌队列（292例为
BRCA
1/2突变的女性三阴性乳腺癌患者），针对其开展分析，分别在非
BRCA
1/2胚系突变患者（
n
= 261）与
BRCA
1/2胚系突变患者（
n
= 31）中进行多元logistic回归分析，以评估影响第二原发肿瘤的风险因素，并对上述两人群中的分析结果进行交互作用分析，从而评估
BRCA
1/2胚系突变与放疗的交互作用。本研究除特殊说明外，均采用双侧检验且检验水准
α
= 0.05。本研究所有样本的获得与使用均得到了复旦大学附属肿瘤医院伦理委员会的批准（050432-4-2108），且每个患者均提供了书面知情同意。
结果：
在
BRCA
1/2胚系突变患者中进行多元logistic回归分析提示术后接受放疗相对于未接受放疗显著增加了第二原发肿瘤的风险[比值比（odds ratio，OR） = 2.479，95% CI：1.971 ~ 3.118，
P
<
0.001）。而在非
BRCA
1/2胚系突变患者中，放疗对第二原发肿瘤的效应则不显著。
BRCA
1/2胚系突变与放疗对于第二原发肿瘤的发生无显著的交互作用（OR = 9.71，95% CI：0.32 ~ 295.25，
P
= 0.193）。
结论：
虽然统计学分析结果显示，与未接受放疗的患者相比，
BRCA
1/2胚系突变的患者术后放疗会增加罹患第二原发肿瘤的风险，但
BRCA
1/2胚系突变与放疗对第二原发肿瘤的发生并无相互交叉作用，因而
BRCA
1/2胚系突变患者术后接受放疗可能并不会增加罹患第二原发肿瘤的风险。
Abstract
Background and purpose:
BRCA
1/2 plays an important role in maintaining the genome stability. Whether BRCA1/2 germline mutation could increase the tumor sensitivity to radiotherapy
thereby inducing secondary primary cancer after radiotherapy is unclear. This study aimed to investigate w
hether postoperative radiotherapy is a risk factor for the development of second primary cancer in triple-negative breast cancer (TNBC) patients with
BRCA
1/2 germline mutation.
Methods:
This research was based on a previously reported retrospective cohort
i.e.
the Fudan University Shanghai Cancer Center TNBC cohort. Between January 1
2007 and December 31
2014
a total of 292 female TNBC patients with
BRCA
1/2 mutation were enrolled. We performed logistic regression analysis in patients without
BRCA
1/2 germline mutation (
n
=261) and
BRCA
1/2 germline mutation patients (
n
=31)
respectively
to assess the risk factors affecting the incidence of second primary cancer. We then performed interactive analysis on the above two analyses to evaluate the interactive effect between
BRCA
1/2 germline mutation and postoperative radiotherapy.
P
<
0.05 indicates a statistically significant difference. The research was approved by Fudan University Shanghai Cancer Center TNBC Ethics Committee (050432-4-2108)
and each patient provided written informed consent.
Results:
Logistic regression analysis in patients with
BRCA
1/2 germline mutations showed that postoperative radiotherapy significantly increased the risk of secondary primary disease compared to non-radiotherapy [odds ratio (OR)=2.475
95% confidence interval (CI): 1.933-3.167
P
<
0.001
]
. In patients without
BRCA
1/2 germline mutation
the effect of radiotherapy on the incidence of second primary tumor was not significant. There was a significant interaction between
BRCA
1/2 germline mutation and postoperative radiotherapy for the incidence of secondary primary cancer (OR=9.710
95%
CI
: 0.320-295.250
P
=0.193).
Conclusion:
Although statistical analysis results show that patients with
BRCA
1/2 germline mutations have an increased risk of developing a second primary tumor after postoperative radiotherapy compared to patients who have not received radiotherapy
there is no significant correlation between
BRCA
1/2 germline mutations and radiotherapy for the development of a second primary tumor. Therefore
patients with
BRCA
1/2 germline mutations who receive radiotherapy after surgery may not increase the risk of developing a second primary tumor.
关键词
Keywords
references
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