根据成熟的临床病理变量和分子亚型,对乳腺癌手术后转移行为的新见解。
New insights into the metastatic behavior after breast cancer surgery, according to well-established clinicopathological variables and molecular subtypes.
作者信息
Buonomo Oreste Claudio, Caredda Emanuele, Portarena Ilaria, Vanni Gianluca, Orlandi Augusto, Bagni Claudia, Petrella Giuseppe, Palombi Leonardo, Orsaria Paolo
机构信息
Department of Surgery, Tor Vergata University Hospital, Rome, Italy.
Department of Biomedicine and Prevention, Tor Vergata University Hospital, Rome, Italy.
出版信息
PLoS One. 2017 Sep 18;12(9):e0184680. doi: 10.1371/journal.pone.0184680. eCollection 2017.
Despite advances in treatment, up to 30% of patients with early breast cancer (BC) experience distant disease relapse. However, a comprehensive understanding of tumor spread and site-specific recurrence patterns remains lacking. This retrospective case-control study included 103 consecutive patients with metastatic BC admitted to our institution (2000-2013). Cases were matched according to age, tumor biology, and clinicopathological features to 221 patients with non-metastatic BC (control group). The median follow-up period among the 324 eligible patients was 7.3 years. While relatively low values for sensitivity (71%) and specificity (56%) were found for axillary lymph node (ALN) involvement as an indicator of risk and pattern of distant relapse, nodal status remained the most powerful predictor of metastases (OR: 3.294; CL: 1.9-5.5). Rates of dissemination and metastatic efficiency differed according to molecular subtype. HER2-positive subtypes showed a stronger association with systemic spread (OR: 2.127; CL: 1.2-3.8) than other subgroups. Classification as Luminal or Non-Luminal showed an increased risk of lung and distant nodal recurrence, and a decreased risk in bone metastases in the Non-Luminal group (OR: 2.9, 3.345, and 0.2, respectively). Tumors with HER2 overexpression had a significantly high risk for distant relapse (OR: 2.127) compared with HER2-negative tumors and also showed higher central nervous system (CNS) and lung metastatic potential (OR: 5.6 and 2.65, respectively) and low risk of bone disease progression (OR: 0.294). Furthermore, we found significant associations between biological profiles and sites of recurrence. A new process of clinical/diagnostic staging, including molecular subtypes, could better predict the likelihood of distant relapses and their anatomical location. Recognition and appreciation of clinically distinct molecular subtypes may assist in evaluation of the probability of distant relapses and their sites. Our analysis provides new insights into management of metastatic disease behavior, to lead to an optimal disease-tailored approach and appropriate follow-up.
尽管治疗取得了进展,但高达30%的早期乳腺癌(BC)患者会出现远处疾病复发。然而,对肿瘤扩散和特定部位复发模式仍缺乏全面的了解。这项回顾性病例对照研究纳入了我院收治的103例连续转移性BC患者(2000 - 2013年)。根据年龄、肿瘤生物学特性和临床病理特征将病例与221例非转移性BC患者(对照组)进行匹配。324例符合条件的患者的中位随访期为7.3年。虽然发现腋窝淋巴结(ALN)受累作为远处复发风险和模式的指标,其敏感性(71%)和特异性(56%)相对较低,但淋巴结状态仍然是转移的最有力预测指标(OR:3.294;CL:1.9 - 5.5)。转移率和转移效率因分子亚型而异。HER2阳性亚型与全身扩散的关联比其他亚组更强(OR:2.127;CL:1.2 - 3.8)。分为Luminal型或非Luminal型显示非Luminal组肺和远处淋巴结复发风险增加,骨转移风险降低(分别为OR:2.9、3.345和0.2)。与HER2阴性肿瘤相比,HER2过表达的肿瘤远处复发风险显著更高(OR:2.127),并且还显示出更高的中枢神经系统(CNS)和肺转移潜能(分别为OR:5.6和2.65)以及低骨病进展风险(OR:0.294)。此外,我们发现生物学特征与复发部位之间存在显著关联。一个新的临床/诊断分期过程,包括分子亚型,可以更好地预测远处复发的可能性及其解剖位置。认识和了解临床上不同的分子亚型可能有助于评估远处复发的概率及其部位。我们的分析为转移性疾病行为的管理提供了新的见解,以实现最佳的疾病个体化治疗方法和适当的随访。
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