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Intramammary Tumor Location and Ipsilateral Lymphatic Spread in Early Breast Cancer Patients Using One-Step Nucleic Acid Amplification (OSNA) Assay 使用一步核酸扩增(OSNA)测定早期乳腺癌患者的乳腺内肿瘤位置和同侧淋巴扩散情况
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-11-08 DOI: 10.1155/2024/4864443
Mariana Robalo Cordeiro, Inês Gante, Daniela David, Ana Gomes, Margarida Figueiredo-Dias

Establishing an accurate prognosis for women diagnosed with breast cancer (BC) is extremely challenging. Axillary lymph node (ALN) evaluation is considered of major prognostic value. The one-step nucleic acid amplification (OSNA) assay is currently used for assessing axillary sentinel lymph node (SLN) status in BC. Additionally, total tumor load (TTL) may help predict further metastatic axillary involvement beyond the SLN. The prognostic value of primary BC location remains controversial due to lack of consensus on the biological differences among tumors at various sites. Evidence suggests that tumors in the internal quadrants (INLs) have worse prognosis compared to those in the external quadrants. Furthermore, ALN involvement is believed to be mainly associated with external quadrant tumors, mainly due to the lymphatic drainage system of the breast. This pilot observational study, despite lacking a control group and having a relatively small sample size, is the first to evaluate the potential relationship between primary BC location and ALN metastasis using the OSNA assay. A sample of consecutive BC patients undergoing axillary staging with the OSNA assay were included. Tumors were categorized into three groups based on primary location: external quadrants and axillary tail (EXL), INLs, and nipple and areola location (NAL). Although not statistically significant, the INL group exhibited a higher mean TTL. Additionally, no significant differences were observed between groups concerning SLN detection techniques, SLN status, number of metastatic SLN, or mean TTL. These findings support the use of the innovative tracer superparamagnetic iron oxide regardless of tumor site. This study underscores the importance of understanding the relationship between BC location and ALN status, which may improve prognostic stratification and targeted therapies based on tumor site. If these observations are confirmed in larger, multicentric studies, the potential conclusions may shift the paradigm of INL tumor treatment, significantly impacting clinical practice and research.

为确诊患有乳腺癌(BC)的妇女确定准确的预后极具挑战性。腋窝淋巴结(ALN)评估被认为具有重要的预后价值。一步核酸扩增(OSNA)检测法目前用于评估乳腺癌患者的腋窝前哨淋巴结(SLN)状态。此外,肿瘤总负荷(TTL)也有助于预测腋窝淋巴结(SLN)以外的进一步转移受累情况。由于对不同部位肿瘤的生物学差异缺乏共识,BC 原发部位的预后价值仍存在争议。有证据表明,与外部象限的肿瘤相比,内部象限(INL)的肿瘤预后较差。此外,ALN受累被认为主要与外部象限肿瘤有关,这主要是由于乳腺的淋巴引流系统所致。这项试验性观察研究尽管没有对照组,样本量也相对较小,但却是首次使用 OSNA 检测法评估原发性 BC 位置与 ALN 转移之间的潜在关系。该研究纳入了使用 OSNA 检测法进行腋窝分期的连续 BC 患者样本。根据原发位置将肿瘤分为三组:外部象限和腋尾(EXL)、INL以及乳头和乳晕位置(NAL)。尽管没有统计学意义,但 INL 组的平均 TTL 值较高。此外,在SLN检测技术、SLN状态、转移性SLN数量或平均TTL方面,观察到组间无明显差异。这些研究结果支持使用创新的示踪剂超顺磁性氧化铁,而不受肿瘤部位的影响。这项研究强调了了解BC位置和ALN状态之间关系的重要性,这可能会改善预后分层和基于肿瘤部位的靶向治疗。如果这些观察结果在更大规模的多中心研究中得到证实,其潜在结论可能会改变 INL 肿瘤的治疗模式,对临床实践和研究产生重大影响。
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引用次数: 0
Relationship Between Mitochondrial Biological Function and Breast Cancer 线粒体生物功能与乳腺癌的关系
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-11-06 DOI: 10.1155/2024/4434466
Shichen Miao, Qichao Ni, Jun Fang

Objective: This study aims to investigate the potential causal link between mitochondrial function and breast cancer using the Mendelian randomization (MR) analysis.

Methods: The data used for this study were obtained from genomewide association studies (GWAS) databases on mitochondrial biological function and breast cancer. Mitochondrial function was considered the exposure variable, breast cancer the outcome variable, and specific single nucleotide polymorphisms (SNPs) were selected as instrumental variables (IVs). Two MR methods, inverse variance weighting (IVW) and MR-Egger regression, were used to assess the causal association between mitochondrial function and breast cancer. Data analysis and visualization were performed using R software.

Results: The results of the analysis revealed that several genes, including 39S ribosomal protein L34, pyruvate carboxylase, rRNA methyltransferase 3, and cytochrome c oxidase assembly factor 3 homolog, are causally linked to an increased risk of breast cancer in European populations. In addition, cytochrome c oxidase subunit 8A and ADP-ribose pyrophosphatase were found to be protective factors against breast cancer in European populations. In East Asian populations, 39S ribosomal protein L52, ATP synthase subunit beta, and pyruvate dehydrogenase (acetyl-transferring) were identified as causal risk factors for breast cancer. Conversely, 39S ribosomal protein L32, ADP-ribose pyrophosphatase, and cytochrome c oxidase subunit 8A were identified as protective factors against breast cancer in this population.

Conclusion: In conclusion, this study provides evidence of a causal relationship between mitochondrial function and breast cancer in both European and East Asian populations. Additional research is warranted to further elucidate the mechanisms underlying this association.

研究目的本研究旨在利用孟德尔随机分析法(MR)研究线粒体功能与乳腺癌之间的潜在因果关系。 研究方法本研究使用的数据来自线粒体生物功能和乳腺癌的全基因组关联研究(GWAS)数据库。线粒体功能被视为暴露变量,乳腺癌被视为结果变量,特定的单核苷酸多态性(SNPs)被选为工具变量(IVs)。使用两种 MR 方法(逆方差加权(IVW)和 MR-Egger 回归)评估线粒体功能与乳腺癌之间的因果关系。数据分析和可视化使用 R 软件进行。 结果分析结果显示,在欧洲人群中,包括 39S 核糖体蛋白 L34、丙酮酸羧化酶、rRNA 甲基转移酶 3 和细胞色素 c 氧化酶组装因子 3 同源物在内的多个基因与乳腺癌风险的增加存在因果关系。此外,在欧洲人群中,细胞色素 c 氧化酶亚基 8A 和 ADP 核糖焦磷酸酶是乳腺癌的保护因素。在东亚人群中,39S核糖体蛋白L52、ATP合成酶亚单位β和丙酮酸脱氢酶(乙酰转移)被确定为乳腺癌的致病风险因素。相反,39S 核糖体蛋白 L32、ADP 核糖焦磷酸酶和细胞色素 c 氧化酶亚基 8A 被确定为该人群中乳腺癌的保护因素。 结论总之,本研究为欧洲和东亚人群线粒体功能与乳腺癌之间的因果关系提供了证据。为了进一步阐明这种关联的机制,还需要进行更多的研究。
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引用次数: 0
Unveiling miRNA30b’s Role in Suppressing ADAM12 to Combat Triple-Negative Breast Cancer 揭示 miRNA30b 在抑制 ADAM12 对抗三阴性乳腺癌中的作用
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-10-30 DOI: 10.1155/2024/5202941
Qing-hua Yin, Jian-bing Hu, Qiang Zhou, Jie Weng, Er-dong Shen, Fang Wen, Song-lian Liu, Lei-lan Yin, Ya-jun Tong, Ling Long, Ke-wei Tang, Si-te Bai, Lu-di Ou

Background: Triple-negative breast cancer, a subtype of breast cancer, is characterized by a poor prognosis. Recent studies have shown that miRNA30b acts as an oncogene and is vital for the proliferation of malignancies across various systems. This study aimed to elucidate the impact of miRNA30b on the proliferation, migration, and invasion capabilities of breast cancer cells in vitro.

Methods: Triple-negative breast cancer cell lines MDA-MB-231 were transiently transfected with miRNA30b inhibitor, mimic, or the negative control by Lipofectamine 2000. Successful transfection was confirmed by quantitative real-time polymerase chain reaction (qRT-PCR). Functional assays, including CCK8, clone formation, scratch, and transwell assays, were conducted to evaluate the proliferation, invasion, and migration ability of MDA-MB-231 cells in each group. The target protein of miRNA30b was determined using an online prediction data website, and the dual-luciferase assay confirmed whether there was a binding site between miRNA30b and ADAM12. The effect was further verified by Western blot analysis.

Results: MDA-MB-231 cells were transfected with miRNA30b inhibitor, mimic, and negative control. miRNA30b expression was downregulated in the cells. Relative to the negative control group, miRNA30b expression significantly increased in the mimic group and decreased in the miRNA30b inhibitor group, with the differences being statistically significant. The miRNA30b mimic group exhibited a significant increase in miRNA30b expression and a corresponding promotion of cell proliferation, colony formation, and migration. Conversely, the miRNA30b inhibitor group displayed significantly reduced miRNA30b expression and suppressed cell proliferation, colony formation, and migration abilities compared to the negative control cells. Bioinformatics software predicted ADAM12 as a potential target of miRNA30b. Dual-luciferase assays confirmed the presence of a binding site between miRNA30b and ADAM12. Western blot analysis revealed that overexpression of miRNA30b downregulated ADAM12 expression in MDA-MB-231 cells.

Conclusions: miRNA30b could promote proliferation, migration, and invasion of TNBC cell lines MDA-MB-231. The effect of miRNA30b on triple-negative breast cancer would be achieved partly at least through inhibiting the expression of ADAM12.

背景:三阴性乳腺癌是乳腺癌的一种亚型,预后较差。最近的研究表明,miRNA30b 是一种致癌基因,对各系统恶性肿瘤的增殖至关重要。本研究旨在阐明 miRNA30b 对体外乳腺癌细胞增殖、迁移和侵袭能力的影响。 研究方法用 Lipofectamine 2000 给三阴性乳腺癌细胞株 MDA-MB-231 转染 miRNA30b 抑制剂、模拟物或阴性对照。转染成功与否由实时定量聚合酶链反应(qRT-PCR)确认。功能试验包括 CCK8、克隆形成、划痕和透孔试验,以评估各组 MDA-MB-231 细胞的增殖、侵袭和迁移能力。利用在线预测数据网站确定了 miRNA30b 的靶蛋白,并通过双荧光素酶试验证实了 miRNA30b 与 ADAM12 之间是否存在结合位点。通过 Western 印迹分析进一步验证了其效果。 结果用 miRNA30b 抑制剂、模拟物和阴性对照组转染 MDA-MB-231 细胞。与阴性对照组相比,miRNA30b表达在miRNA30b抑制剂组显著增加,在miRNA30b抑制剂组显著减少,差异有统计学意义。miRNA30b mimic 组的 miRNA30b 表达明显增加,相应地促进了细胞增殖、集落形成和迁移。相反,与阴性对照组相比,miRNA30b 抑制剂组的 miRNA30b 表达明显减少,细胞增殖、集落形成和迁移能力受到抑制。生物信息学软件预测 ADAM12 是 miRNA30b 的潜在靶点。双荧光素酶测定证实了 miRNA30b 与 ADAM12 之间存在结合位点。Western 印迹分析显示,过表达 miRNA30b 会降低 MDA-MB-231 细胞中 ADAM12 的表达。 结论:miRNA30b 可促进 TNBC 细胞株 MDA-MB-231 的增殖、迁移和侵袭。miRNA30b 对三阴性乳腺癌的作用至少部分是通过抑制 ADAM12 的表达实现的。
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引用次数: 0
Effect of Estrogen Receptor on the Relationship Between HER2 Immunohistochemistry Score and Pathological Complete Response to Neoadjuvant Treatment in HER2-Positive Breast Cancer 雌激素受体对 HER2 免疫组化评分与 HER2 阳性乳腺癌新辅助治疗病理完全反应之间关系的影响
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-10-10 DOI: 10.1155/2024/8851703
Miaomiao Jia, Haibo Yang, Lihui Pan, Jinnan Gao, Fan Guo

Purpose: We aimed to investigate whether estrogen receptor (ER) status affects the predictive role of the human epidermal growth factor receptor 2 (HER2) immunohistochemistry (IHC) score on the efficacy of neoadjuvant treatment for HER2-positive breast cancer.

Methods: This retrospective study comprised 167 individuals diagnosed with HER2-positive invasive breast cancer who had undergone neoadjuvant treatment and surgery. Uni- and multivariable logistic regression analyses were performed on the relationship between the HER2 IHC score and total pathological complete response (tpCR), breast pathological complete response (bpCR), or axillary partial response (apCR). Subgroup analyses were used to investigate whether the relationship between the HER2 IHC score and tpCR, bpCR, or apCR differed by ER or PR status.

Results: The overall tpCR rate for HER2-positive breast cancers treated with neoadjuvant treatment was 41.32% (69 of 167). The tpCR, bpCR, and apCR rates were greater in the HER2 IHC 3+ group (tpCR: IHC 3 + 47.69% vs. IHC 2 + 18.92%, p = 0.009). Significant interactions between HER2 IHC score and tpCR or bpCR were found in subgroup analyses based on ER status (tpCR: p for interaction = 0.001; bpCR: p for interaction = 0.001). Among ER-positive patients, the HER2 IHC 2+ group had substantially decreased tpCR, bpCR, and apCR rates than the HER2 IHC 3+ group (tpCR rate: p = 0.003; bpCR rate: p = 0.002; apCR rate: p = 0.002). For ER-negative individuals, the tpCR, bpCR, and apCR rates did not differ significantly among the HER2 IHC 3+ versus HER2 IHC 2+ groups. Similarly, interactions between HER2 IHC score and tpCR, bpCR, or apCR were found in subgroup analyses based on PR status.

Conclusion: HER2 IHC 2+ may indicate a decreased tpCR rate, bpCR rate, and apCR rate to neoadjuvant treatment in HR-positive patients having HER2-positive breast cancer, but not in HR-negative patients.

目的:我们旨在研究雌激素受体(ER)状态是否会影响人表皮生长因子受体 2(HER2)免疫组化(IHC)评分对 HER2 阳性乳腺癌新辅助治疗疗效的预测作用。 研究方法这项回顾性研究包括167名确诊为HER2阳性浸润性乳腺癌并接受了新辅助治疗和手术的患者。对 HER2 IHC 评分与总病理完全反应(tpCR)、乳腺病理完全反应(bpCR)或腋窝部分反应(apCR)之间的关系进行了单变量和多变量逻辑回归分析。亚组分析用于研究 HER2 IHC 评分与 tpCR、bpCR 或 apCR 之间的关系是否因 ER 或 PR 状态而异。 结果接受新辅助治疗的HER2阳性乳腺癌的总体tpCR率为41.32%(167例中有69例)。HER2 IHC 3+ 组的 tpCR、bpCR 和 apCR 率更高(tpCR:IHC 3 + 47.69% vs. IHC 2 + 18.92%,p = 0.009)。在基于ER状态的亚组分析中发现,HER2 IHC评分与tpCR或bpCR之间存在显著的交互作用(tpCR:交互作用的p = 0.001;bpCR:交互作用的p = 0.001)。在ER阳性患者中,HER2 IHC 2+组的tpCR、bpCR和apCR率大大低于HER2 IHC 3+组(tpCR率:p = 0.003;bpCR率:p = 0.002;apCR率:p = 0.002)。对于ER阴性个体,HER2 IHC 3+组与HER2 IHC 2+组之间的tpCR率、bpCR率和apCR率没有显著差异。同样,在基于 PR 状态的亚组分析中,也发现了 HER2 IHC 评分与 tpCR、bpCR 或 apCR 之间的相互作用。 结论对于HR阳性的HER2阳性乳腺癌患者来说,HER2 IHC 2+可能会降低新辅助治疗的tpCR率、bpCR率和apCR率,但对于HR阴性的患者来说则不会。
{"title":"Effect of Estrogen Receptor on the Relationship Between HER2 Immunohistochemistry Score and Pathological Complete Response to Neoadjuvant Treatment in HER2-Positive Breast Cancer","authors":"Miaomiao Jia,&nbsp;Haibo Yang,&nbsp;Lihui Pan,&nbsp;Jinnan Gao,&nbsp;Fan Guo","doi":"10.1155/2024/8851703","DOIUrl":"https://doi.org/10.1155/2024/8851703","url":null,"abstract":"<div>\u0000 <p><b>Purpose:</b> We aimed to investigate whether estrogen receptor (ER) status affects the predictive role of the human epidermal growth factor receptor 2 (HER2) immunohistochemistry (IHC) score on the efficacy of neoadjuvant treatment for HER2-positive breast cancer.</p>\u0000 <p><b>Methods:</b> This retrospective study comprised 167 individuals diagnosed with HER2-positive invasive breast cancer who had undergone neoadjuvant treatment and surgery. Uni- and multivariable logistic regression analyses were performed on the relationship between the HER2 IHC score and total pathological complete response (tpCR), breast pathological complete response (bpCR), or axillary partial response (apCR). Subgroup analyses were used to investigate whether the relationship between the HER2 IHC score and tpCR, bpCR, or apCR differed by ER or PR status.</p>\u0000 <p><b>Results:</b> The overall tpCR rate for HER2-positive breast cancers treated with neoadjuvant treatment was 41.32% (69 of 167). The tpCR, bpCR, and apCR rates were greater in the HER2 IHC 3+ group (tpCR: IHC 3 + 47.69% vs. IHC 2 + 18.92%, <i>p</i> = 0.009). Significant interactions between HER2 IHC score and tpCR or bpCR were found in subgroup analyses based on ER status (tpCR: <i>p</i> for interaction = 0.001; bpCR: <i>p</i> for interaction = 0.001). Among ER-positive patients, the HER2 IHC 2+ group had substantially decreased tpCR, bpCR, and apCR rates than the HER2 IHC 3+ group (tpCR rate: <i>p</i> = 0.003; bpCR rate: <i>p</i> = 0.002; apCR rate: <i>p</i> = 0.002). For ER-negative individuals, the tpCR, bpCR, and apCR rates did not differ significantly among the HER2 IHC 3+ versus HER2 IHC 2+ groups. Similarly, interactions between HER2 IHC score and tpCR, bpCR, or apCR were found in subgroup analyses based on PR status.</p>\u0000 <p><b>Conclusion:</b> HER2 IHC 2+ may indicate a decreased tpCR rate, bpCR rate, and apCR rate to neoadjuvant treatment in HR-positive patients having HER2-positive breast cancer, but not in HR-negative patients.</p>\u0000 </div>","PeriodicalId":56326,"journal":{"name":"Breast Journal","volume":"2024 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/8851703","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Brain Metastasis in Triple-Negative Breast Cancer 三阴性乳腺癌的脑转移
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-09-30 DOI: 10.1155/2024/8816102
Eduarda Bustamante, Fresia Casas, Renato Luque, Luis Piedra, Shamir Barros-Sevillano, Diego Chambergo-Michilot, J. Smith Torres-Roman, Alexis Narvaez-Rojas, Zaida Morante, Daniel Enriquez-Vera, Anshumi Desai, Cesar Razuri, Gabriel De la Cruz-Ku, Jhajaira Araujo

Background. Breast cancer is an important cause of cancer-related death in women worldwide and represents the second most frequent cause of brain metastases after lung cancer. The aim of this study was to determine the characteristics and outcomes of triple-negative breast cancer (TNBC) patients with brain metastasis (BM). Methods. We retrospectively reviewed a cohort of patients diagnosed with TNBC at the “Instituto Nacional de Enfermedades Neoplasicas” (period 2000–2014) to evaluate patients who developed BM. Survival rates were assessed by the Kaplan–Meier method, and prognostic factors were identified with the Cox regression analysis. Results. Of a total of 2007 TNBC patients, 193 (9.62%) developed BM. Of these, 169 stages I–III patients with a median age of 45 years (range:21–78) were included. The stage in this cohort was 4 (2.4%) clinical stage (CS) I, 23 (13.6%) with CS II and 142 (84.0%) with CS III. Most of these patients presented ECOG ≥2 (68.6%). The most common symptom was headache (74.0%), followed by nausea-vomiting (46.7%). Imaging showed that 80 patients (53.0%) had ≥1 metastatic brain lesion. Regarding the treatment of BM in this cohort, 132 patients (84.6%) received radiotherapy (RT), 2 (1.5%) surgery, and 6 (4.5%) surgery plus RT. The overall survival (OS) rate of BM was 59.8%, 37.3%, and 15.0% at 3, 6, and 12 months, respectively. A multivariate analysis showed RT to be the only factor with a positive impact on the OS of BM (hazard ratio (HR) = 0.48, 95% confidence interval (CI):0.30-0.77, and p = 0.002), while ECOG ≥2 was associated with a worse OS (HR = 1.69, 95%CI:1.15–2.48, and p = 0.007). Conclusion. Despite the poor prognosis of TNBC patients who develop BM, RT showed a benefit in OS rates, while ECOG ≥2 was the only prognostic factor associated with a worse OS. These results may be useful for multidisciplinary teams for treatment planning in patients with TNBC and BM.

背景。乳腺癌是全球女性癌症相关死亡的重要原因,也是仅次于肺癌的第二大脑转移病因。本研究旨在确定三阴性乳腺癌(TNBC)脑转移(BM)患者的特征和预后。研究方法我们对 "国家肿瘤研究所"(Instituto Nacional de Enfermedades Neoplasicas)确诊的 TNBC 患者队列(2000-2014 年)进行了回顾性研究,以评估发生脑转移的患者。采用 Kaplan-Meier 法评估生存率,并通过 Cox 回归分析确定预后因素。结果在2007例TNBC患者中,有193例(9.62%)出现骨髓瘤。其中,169例为I-III期患者,中位年龄为45岁(21-78岁)。临床分期(CS)为 I 期的患者有 4 人(2.4%),CS II 期患者有 23 人(13.6%),CS III 期患者有 142 人(84.0%)。大多数患者的 ECOG ≥2(68.6%)。最常见的症状是头痛(74.0%),其次是恶心呕吐(46.7%)。影像学检查显示,80 名患者(53.0%)有≥1 个转移性脑病灶。关于该组患者的脑转移治疗,132 名患者(84.6%)接受了放射治疗(RT),2 名患者(1.5%)接受了手术治疗,6 名患者(4.5%)接受了手术加 RT 治疗。在3、6和12个月时,BM的总生存率(OS)分别为59.8%、37.3%和15.0%。多变量分析显示,RT是唯一对BM的OS有积极影响的因素(危险比(HR)=0.48,95%置信区间(CI):0.30-0.77,P=0.002),而ECOG≥2与较差的OS相关(HR=1.69,95%CI:1.15-2.48,P=0.007)。结论尽管发生BM的TNBC患者预后较差,但RT对OS率有益处,而ECOG≥2是唯一与OS较差相关的预后因素。这些结果可能有助于多学科团队为 TNBC 和 BM 患者制定治疗计划。
{"title":"Brain Metastasis in Triple-Negative Breast Cancer","authors":"Eduarda Bustamante,&nbsp;Fresia Casas,&nbsp;Renato Luque,&nbsp;Luis Piedra,&nbsp;Shamir Barros-Sevillano,&nbsp;Diego Chambergo-Michilot,&nbsp;J. Smith Torres-Roman,&nbsp;Alexis Narvaez-Rojas,&nbsp;Zaida Morante,&nbsp;Daniel Enriquez-Vera,&nbsp;Anshumi Desai,&nbsp;Cesar Razuri,&nbsp;Gabriel De la Cruz-Ku,&nbsp;Jhajaira Araujo","doi":"10.1155/2024/8816102","DOIUrl":"https://doi.org/10.1155/2024/8816102","url":null,"abstract":"<div>\u0000 <p><i>Background</i>. Breast cancer is an important cause of cancer-related death in women worldwide and represents the second most frequent cause of brain metastases after lung cancer. The aim of this study was to determine the characteristics and outcomes of triple-negative breast cancer (TNBC) patients with brain metastasis (BM). <i>Methods</i>. We retrospectively reviewed a cohort of patients diagnosed with TNBC at the “Instituto Nacional de Enfermedades Neoplasicas” (period 2000–2014) to evaluate patients who developed BM. Survival rates were assessed by the Kaplan–Meier method, and prognostic factors were identified with the Cox regression analysis. <i>Results</i>. Of a total of 2007 TNBC patients, 193 (9.62%) developed BM. Of these, 169 stages I–III patients with a median age of 45 years (range:21–78) were included. The stage in this cohort was 4 (2.4%) clinical stage (CS) I, 23 (13.6%) with CS II and 142 (84.0%) with CS III. Most of these patients presented ECOG ≥2 (68.6%). The most common symptom was headache (74.0%), followed by nausea-vomiting (46.7%). Imaging showed that 80 patients (53.0%) had ≥1 metastatic brain lesion. Regarding the treatment of BM in this cohort, 132 patients (84.6%) received radiotherapy (RT), 2 (1.5%) surgery, and 6 (4.5%) surgery plus RT. The overall survival (OS) rate of BM was 59.8%, 37.3%, and 15.0% at 3, 6, and 12 months, respectively. A multivariate analysis showed RT to be the only factor with a positive impact on the OS of BM (hazard ratio (HR) = 0.48, 95% confidence interval (CI):0.30-0.77, and <i>p</i> = 0.002), while ECOG ≥2 was associated with a worse OS (HR = 1.69, 95%CI:1.15–2.48, and <i>p</i> = 0.007). <i>Conclusion</i>. Despite the poor prognosis of TNBC patients who develop BM, RT showed a benefit in OS rates, while ECOG ≥2 was the only prognostic factor associated with a worse OS. These results may be useful for multidisciplinary teams for treatment planning in patients with TNBC and BM.</p>\u0000 </div>","PeriodicalId":56326,"journal":{"name":"Breast Journal","volume":"2024 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/8816102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Duration of Breastfeeding and Risk Reduction of Breast Cancer among Mothers Who Have Ever Breastfed: A Case-Control Study Conducted in Bahir Dar, Ethiopia 母乳喂养持续时间与降低母乳喂养母亲患乳腺癌的风险:在埃塞俄比亚巴哈达尔进行的病例对照研究
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-09-20 DOI: 10.1155/2024/1987378
Fentanesh Nibret Tiruneh, Peter Austin Morton Ntenda

Introduction. Breast cancer is currently the most frequently detected cancer in women and the primary cause of cancer-related deaths globally. The incidence of breast cancer has significantly increased in countries across sub-Saharan Africa, counting Ethiopia. There are multiple determinants of breast cancer, a few of these can be changeable whereas others are not. Evidence suggests that breastfeeding, which is a changeable determinant, reduces breast cancer risk. However, there is a lack of evidence specifically linking the duration of breastfeeding to breast cancer risk. To date, no study has been conducted on the association between the duration of breastfeeding and the likelihood of breast cancer among Ethiopian women. Objective. The aim of this study was to evaluate the relationship between breastfeeding duration and breast cancer risk in Ethiopian mothers who had breastfed, taking into account other significant determinants. Methods. A hospital-based case-control study was carried out in Bahir Dar, Ethiopia, involving 203 women (70 cases and 133 controls). Face-to-face interviews were performed using a standardized, validated questionnaire that assessed various sociodemographic, reproductive, lifestyle, and dietary characteristics. Differences between cases and controls were evaluated using the chi-square test. The associations among factors were examined through bivariate and multivariable binary logistic regression, with results presented as odds ratios and 95% confidence intervals. Results. The multivariable investigation revealed that an inverse relationship between breastfeeding duration and breast cancer risk. Mothers who breastfed for a longer period had a 93% lower risk of breast cancer (AOR = 0.07; 95% CI: 0.021–0.21) compared to those who breastfed for a shorter duration. Younger mothers had a 95% lower likelihood of developing breast cancer (AOR = 0.05; 95% CI: 0.003–0.91) than older mothers. Additionally, mothers with sedentary behaviour were 10.53 times more likely to develop breast cancer (AOR = 10.53; 95% CI: 5.21–21.36) than those who were moderately or highly active. Mothers who experienced chest therapy were 6.43 times more likely to develop breast cancer (AOR = 6.43; 95% CI: 3.20–13.90) compared to those who had not. Conclusions. Interventions such as breastfeeding counselling and promoting the recommended duration of breastfeeding are crucial in minimizing the risk of breast cancer. Enhancing physical activity should also be viewed as a vital approach for lowering breast cancer risk. Additionally, healthcare professionals need to limit exposure to chest radiation therapy to reduce the likelihood of breast cancer.

导言。乳腺癌是目前妇女最常发现的癌症,也是全球癌症相关死亡的主要原因。在撒哈拉以南非洲国家(包括埃塞俄比亚),乳腺癌的发病率大幅上升。乳腺癌有多种决定因素,其中一些可以改变,而另一些则无法改变。有证据表明,母乳喂养这一可改变的决定因素可降低乳腺癌风险。然而,目前还缺乏将母乳喂养时间与乳腺癌风险具体联系起来的证据。迄今为止,尚未对埃塞俄比亚妇女母乳喂养持续时间与乳腺癌发病几率之间的关系进行过研究。研究目的本研究旨在评估埃塞俄比亚母乳喂养母亲的母乳喂养持续时间与乳腺癌风险之间的关系,同时考虑其他重要的决定因素。研究方法在埃塞俄比亚巴哈达尔市开展了一项基于医院的病例对照研究,共有 203 名妇女参与(70 例病例和 133 例对照)。研究人员使用标准化的验证问卷进行了面对面访谈,评估了各种社会人口、生殖、生活方式和饮食特征。病例与对照组之间的差异采用卡方检验进行评估。通过二元和多变量二元逻辑回归检验了各因素之间的关联,结果以几率比和 95% 置信区间表示。结果显示多变量调查显示,母乳喂养时间与乳腺癌风险呈反比关系。与母乳喂养时间较短的母亲相比,母乳喂养时间较长的母亲患乳腺癌的风险低 93%(AOR = 0.07;95% CI:0.021-0.21)。年轻母亲患乳腺癌的可能性比年长母亲低 95%(AOR = 0.05;95% CI:0.003-0.91)。此外,久坐不动的母亲患乳腺癌的几率(AOR = 10.53;95% CI:5.21-21.36)是中度或高度活跃母亲的 10.53 倍。经历过胸部治疗的母亲患乳腺癌的几率是没有经历过胸部治疗的母亲的 6.43 倍(AOR = 6.43;95% CI:3.20-13.90)。结论母乳喂养咨询和提倡建议的母乳喂养时间等干预措施对于最大限度地降低乳腺癌风险至关重要。加强体育锻炼也应被视为降低乳腺癌风险的重要方法。此外,医护人员需要限制接受胸部放射治疗,以降低罹患乳腺癌的可能性。
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引用次数: 0
Associations between PIK3CA Mutations and Disease Free Survival in Patients with HR+, HER2− Tumors Treated with Adjuvant Hormonal Therapy: A Real-World Study in Croatia 接受激素辅助治疗的HR+、HER2-肿瘤患者的PIK3CA突变与无病生存期之间的关系:克罗地亚的一项真实世界研究
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-09-14 DOI: 10.1155/2024/5648845
Dora Čerina Pavlinović, Natalija Dedić Plavetić, Ingrid Belac Lovasić, Robert Šeparović, Josipa Flam, Marija Pancirov, Žarko Bajić, Snježana Tomić, Eduard Vrdoljak

Introduction. Disease recurrence in patients with the early hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2−) breast tumor subtype is particularly challenging to manage due to its complex and very heterogeneous biological nature. Namely, due to primary and secondary resistance, one-quarter of patients with early-stage disease will experience disease recurrence. This variability in the timing of recurrence highlights the need to better identify key biomarkers that could predict therapeutic outcomes and guide personalized treatment strategies for these patients. Mutations in the phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) gene are highly prevalent (30–40%) in HR+/HER2− advanced breast cancer. They lead to activation of the PI3K/AKT/mTOR pathway, promoting cell growth, and proliferation, and are associated with poor prognosis in advanced breast cancer. Our aim was to examine the association between and impact of PIK3CA mutation status on disease-free survival (DFS) in HR+/HER2− early breast cancer patients. Methods. This cohort study was multicentric and retrospective in nature and was conducted at five Croatian institutions from July 2020 to December 2021. The study included initially early and locally advanced operable HR+/HER2− breast cancer patients who were diagnosed with disease recurrence during adjuvant hormonal treatment or within the first six years of follow-up. Results. A total of 186 patients were included, 40.9% of whom tested positive for the PIK3CA mutation. Primary and adjuvant treatment, particularly adjuvant endocrine treatment, were similar between the two groups. After adjustment for 14 relevant covariates, we found that patients with a positive PIK3CA status and the H1047 PIK3CA mutation had a significantly lower hazard of disease recurrence than patients with no PIK3CA mutation (HR 0.65; 95% CI 0.45; 0.95; p = 0.024; false discovery rate, FDR <10%). Conclusions. This study highlights the potential impact of PIK3CA mutations on disease recurrence during or following adjuvant endocrine therapy and potentially opens the door for further investigation of possibly more personalized treatment strategies.

导言。早期激素受体阳性(HR+)、人表皮生长因子受体 2 阴性(HER2-)乳腺肿瘤亚型患者的疾病复发因其复杂和非常异质的生物学性质而特别具有管理挑战性。也就是说,由于原发性和继发性抗药性,四分之一的早期患者会出现疾病复发。这种复发时间上的差异凸显了更好地确定关键生物标志物的必要性,这些生物标志物可以预测治疗结果并指导这些患者的个性化治疗策略。在HR+/HER2-晚期乳腺癌中,磷脂酰肌醇4,5-二磷酸3-激酶催化亚基α(PIK3CA)基因的突变非常普遍(30-40%)。它们会导致 PI3K/AKT/mTOR 通路的激活,促进细胞生长和增殖,并与晚期乳腺癌的不良预后有关。我们的目的是研究PIK3CA突变状态与HR+/HER2-早期乳腺癌患者无病生存期(DFS)之间的关系及其影响。研究方法这项队列研究是一项多中心回顾性研究,于 2020 年 7 月至 2021 年 12 月在克罗地亚的五家机构进行。研究对象包括在激素辅助治疗期间或随访前六年内确诊疾病复发的可手术的HR+/HER2-早期和局部晚期乳腺癌患者。研究结果共纳入186名患者,其中40.9%的患者PIK3CA突变检测呈阳性。两组患者的初治和辅助治疗,尤其是辅助内分泌治疗相似。在对14个相关协变量进行调整后,我们发现PIK3CA检测结果呈阳性且存在H1047 PIK3CA突变的患者的疾病复发风险明显低于无PIK3CA突变的患者(HR 0.65; 95% CI 0.45; 0.95; p = 0.024; false discovery rate, FDR <10%)。结论这项研究强调了PIK3CA突变对辅助内分泌治疗期间或之后疾病复发的潜在影响,并为进一步研究可能更加个性化的治疗策略打开了大门。
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引用次数: 0
Inhibition of Lymphangiogenesis: A Protective Role of microRNA 146a-5p in Breast Cancer 抑制淋巴管生成:微RNA 146a-5p在乳腺癌中的保护作用
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-08-21 DOI: 10.1155/2024/7813083
Wenlong Liang, Haoran Wang, Baiyang Fu, Yuan Song, Zheng Zhang, Xin Liu, Yujia Lin, Jianguo Zhang

Breast cancer is the leading cause of death and morbidity among women. A major challenge for clinical management of breast cancer is the dissemination of breast cancer cells from the primary tumor site via lymphatic drainage, resulting in metastatic tumor spread. Recent studies have found that high expression of the microRNA miR-146a-5p is associated with better survival outcomes for breast cancer patients. However, the mechanisms for this prognostic benefit are not fully elucidated, including whether or not miR-146a-5p plays a role in suppression of lymphatic dissemination. In this study, we investigated the role and uncovered functional mechanisms of miR-146a-5p in breast cancer. We found that high expression of miR-146a-5p is associated with better clinical outcomes, specifically in the patients with N0 breast cancer. In culture, miR-146a-5p overexpression in MCF-7 breast cancer cells suppressed cell migration and lymphangiogenesis in lymphatic endothelial cells. When implanted in the mammary fat pad of mice, we observed that miR-146a-5p overexpressing MCF-7 suppressed lymphatic dissemination but had no effect on tumor progression in the primary site. This suppression was associated with fewer disseminated cancer cells and reduced lymphangiogenesis in the draining and distal lymph nodes. In conclusion, these results suggest that miR-146a-5p can exhibit a protective role against breast cancer metastasis, and it can be a therapeutic target for breast cancer.

乳腺癌是妇女死亡和发病的主要原因。乳腺癌临床治疗的一大挑战是乳腺癌细胞通过淋巴引流从原发肿瘤部位扩散,导致肿瘤转移。最近的研究发现,microRNA miR-146a-5p 的高表达与乳腺癌患者较好的生存预后有关。然而,这种预后获益的机制尚未完全阐明,包括 miR-146a-5p 是否在抑制淋巴扩散中发挥作用。在这项研究中,我们研究了 miR-146a-5p 在乳腺癌中的作用并揭示了其功能机制。我们发现,miR-146a-5p的高表达与更好的临床预后相关,尤其是在N0乳腺癌患者中。在培养过程中,miR-146a-5p 在 MCF-7 乳腺癌细胞中的过表达抑制了细胞迁移和淋巴内皮细胞的淋巴管生成。当植入小鼠乳腺脂肪垫时,我们观察到过表达 miR-146a-5p 的 MCF-7 细胞抑制了淋巴扩散,但对原发部位的肿瘤进展没有影响。这种抑制与较少的扩散癌细胞以及引流淋巴结和远端淋巴结的淋巴管生成减少有关。总之,这些结果表明,miR-146a-5p 对乳腺癌转移具有保护作用,可以作为乳腺癌的治疗靶点。
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引用次数: 0
Digital Self-Management Intervention Paths for Early Breast Cancer Patients: Results of a Pilot Study 早期乳腺癌患者的数字化自我管理干预路径:试点研究结果
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-08-13 DOI: 10.1155/2024/8036696
Paula Poikonen-Saksela, Evangelos Karademas, Leena Vehmanen, Meri Utriainen, Haridimos Kondylakis, Konstadina Kourou, Georgios C. Manikis, Eleni Kolokotroni, Panagiotis Argyropaidas, Berta Sousa, Ruth Pat Horenczyk, Ketti Mazzocco, Johanna Mattson

Background. Despite excellent prognosis of early breast cancer, the patients face problems related to decreased quality of life and mental health. There is a need for easily available interventions targeting modifiable factors related to these problems. The aim of this study was to test the use of a new digital supportive intervention platform for early breast cancer patients. Material and Methods. Ninety-seven early breast cancer patients answered questions on wellbeing, exercise, and sociodemographic factors before systemic adjuvant treatment at the Helsinki University Hospital. Based on these answers and predictive algorithms for anxiety and depression, they were guided onto one or several digital intervention paths. Patients under 56 years of age were guided onto a nutrition path, those who exercised less than the current guideline recommendations onto an exercise path, and those at risk of mental health deterioration onto an empowerment path. Information on compliance was collected at 3 months on the amount of exercise and quality of life using EORTC-C30 scale, anxiety and depression using HADS scale at baseline and 12 months, and log-in information at 3 and 12 months. Results. Thirty-two patients followed the empowerment path, 43 the nutrition path, and 75 the exercise path. On a scale of 1–5, most of the participants (mean = 3.4; SD 0.815) found the interventions helpful and would have recommended testing and supportive interventions to their peers (mean = 3.70; SD 0.961). During the 10-week intervention period, the mean number of log-ins to the empowerment path was 3.69 (SD = 4.24); the nutrition path, 4.32 (SD = 2.891); and the exercise path, 8.33 (SD = 6.293). The higher number of log-ins to the empowerment (rho = 0.531, P = 0.008, and n = 24) and exercise paths (rho = 0.330, P = 0.01, and n = 59) was related to better global quality of life at one year. The number of log-ins correlated to the weekly amount of exercise in the exercise path (cc 0.740, P value <0.001, and n = 20). Conclusion. Patients’ attitudes towards the interventions were positive, but they used them far less than was recommended. A randomized trial would be needed to test the effect of interventions on patients’ QoL and mental health.

背景。尽管早期乳腺癌预后良好,但患者仍面临着生活质量下降和心理健康方面的问题。有必要针对与这些问题相关的可改变因素采取易于使用的干预措施。本研究的目的是测试针对早期乳腺癌患者的新型数字支持性干预平台的使用情况。材料与方法97名早期乳腺癌患者在赫尔辛基大学医院接受系统辅助治疗前回答了有关健康、运动和社会人口因素的问题。根据这些回答以及焦虑和抑郁的预测算法,他们被引导进入一种或几种数字干预路径。56岁以下的患者被引导至营养路径,运动量低于现行指南建议的患者被引导至运动路径,有心理健康恶化风险的患者被引导至增强能力路径。研究人员在 3 个月时使用 EORTC-C30 量表收集了有关运动量和生活质量的依从性信息,在基线和 12 个月时使用 HADS 量表收集了焦虑和抑郁信息,并在 3 个月和 12 个月时收集了登录信息。结果32名患者选择了增强能力疗法,43名患者选择了营养疗法,75名患者选择了运动疗法。在 1-5 级评分中,大多数参与者(平均值 = 3.4;标准差 0.815)认为干预措施很有帮助,并会向同伴推荐测试和支持性干预措施(平均值 = 3.70;标准差 0.961)。在为期 10 周的干预期间,登录赋权路径的平均次数为 3.69(SD = 4.24);登录营养路径的平均次数为 4.32(SD = 2.891);登录锻炼路径的平均次数为 8.33(SD = 6.293)。登录增强能力路径(rho = 0.531,P = 0.008,n = 24)和锻炼路径(rho = 0.330,P = 0.01,n = 59)的人数越多,一年后的总体生活质量就越高。登录次数与运动路径中每周的运动量相关(cc 0.740,P 值为 0.001,n = 20)。结论患者对干预措施的态度是积极的,但他们使用干预措施的次数远远少于建议的次数。需要进行随机试验,以检验干预措施对患者生活质量和心理健康的影响。
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引用次数: 0
Comparison of BRCA1 Gene Expression and CA15-3 Tumor Marker Level in Different Stages of Breast Cancer 不同分期乳腺癌中 BRCA1 基因表达与 CA15-3 肿瘤标志物水平的比较
IF 1.9 4区 医学 Q3 OBSTETRICS & GYNECOLOGY Pub Date : 2024-08-12 DOI: 10.1155/2024/3461694
Negar Soltani Irdmusa, Haniyeh Bashi Zadeh Fakhar, Masoumeh Heshmati, Mohammad Esmaiel Akbari, Sara Rahimi

Breast cancer (BC), a globally prevalent malignancy, shows significant variability in incidence across different geographical regions. In this study, we examined the expression of the tumor suppressor gene BRCA1 and the tumor marker CA15-3 in women diagnosed with BC, focusing on different cancer grades. Our research, conducted at the Baqiyat Elah Hospital in Tehran in 2021, involved collecting blood and serum samples from BC patients. These samples underwent BRCA1 gene expression analysis and CA15-3 tumor marker assessment. Using the AJCC grading system, we categorized BC patients into various grades. Our findings revealed that BRCA1 gene expression was present in 28.57% of patients, while 71.43% showed negative expression. Both BRCA1 expression and CA15-3 levels significantly increased with advanced cancer stages (P < 0.001). These results suggest the potential utility of BRCA1 gene expression and CA15-3 tumor marker assessment in BC prognosis and management, particularly concerning staging and disease progression. This study provides valuable insights into the biology of BC and the development of prognostic markers for improved patient outcomes.

乳腺癌(BC)是一种全球流行的恶性肿瘤,不同地理区域的发病率差异很大。在这项研究中,我们检测了确诊为乳腺癌的妇女体内肿瘤抑制基因 BRCA1 和肿瘤标志物 CA15-3 的表达情况,重点关注不同癌症等级。我们的研究于 2021 年在德黑兰的 Baqiyat Elah 医院进行,收集了 BC 患者的血液和血清样本。对这些样本进行了 BRCA1 基因表达分析和 CA15-3 肿瘤标志物评估。根据 AJCC 分级系统,我们将 BC 患者分为不同等级。我们的研究结果显示,28.57%的患者存在 BRCA1 基因表达,71.43%的患者呈阴性表达。BRCA1 表达和 CA15-3 水平均随癌症晚期而明显升高(P < 0.001)。这些结果表明,BRCA1基因表达和CA15-3肿瘤标志物评估在BC预后和管理中具有潜在的实用性,尤其是在分期和疾病进展方面。这项研究为了解 BC 的生物学特性和开发预后标志物以改善患者预后提供了宝贵的见解。
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引用次数: 0
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