A reproducibility study on invasion in small pulmonary adenocarcinoma according to the WHO and a modified classification, supported by biomarkers
(Lung Cancer, IF: 4.5)
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Erik Thunnissen, Hans Blaauwgeers, Federica Filipello, Birgit Lissenberg- Witte, Yuko Minami, Masayuki Noguchi, John Le Quesne, Mauro Giulio Papotti, Douglas B. Flieder, Giuseppe Pelosi, Irene Sansano, Sabina Berezowska, Aleš Ryška, Luka Brcic, Noriko Motoi, Yukio Nakatani, Christiane Kuempers, Paul Hofman, Veronique Hofman, Vibeke Grotnes Dale, Giulio Rossi, Francesca Ambrosi, Daisuke Matsubara, Yuichi Ishikawa, Birgit Weynand, Fiorella Calabrese, Federica Pezzuto, Izidor Kern, Siobhan Nicholson, Aino Mutka, Sanja Dacic, Mary Beth Beasley, Gianluigi Arrigoni, Wim Timens, Marc Ooft, Mariel Brinkhuis, Nicole Bulkmans, Rieneke Britstra, Willem Vreuls, Kirk D. Jones, Jan H. von der Thüsen, Hendrik Hager, Sven Perner, David Moore, Diana Gabriela Leonte, Shaimaa Al- Janabi, Andreas Schønau, Olaf Neumann, Klaus Kluck, Iordanis Ourailidis, Markus Ball, Jan Budczies, Daniel Kazdal, Albrecht Stenzinger
Evaluating invasion in non-mucinous adenocarcinoma (NMA) of the lung is crucial for accurate pT-staging. This study compares the World Health Organization (WHO) with a recently modified NMA classification.
评估肺非粘液腺癌(NMA)的侵袭性对于准确的pT分期至关重要。本研究将世界卫生组织(WHO)与最近修改的NMA分类进行了比较。
Materials and Methods 材料和方法
A retrospective case-control study was conducted on small NMA pT1N0M0 cases with a 5- year follow-up. Seventy cases were reviewed by 42 pulmonary pathologists first according to the WHO classification and after tutorial according to a modified classification. A third round was conducted based on feedback from 41 peers of previous rounds. Additionally, orthogonal biomarker analysis was performed.
对小NMA pT1N0M0病例进行了回顾性病例对照研究,随访时间为5年。42名肺病理学专家首先根据世界卫生组织分类对70例病例进行了审查,并根据修改的分类指导后再对其进行了审查。第三轮是在前几轮41名同龄人的反馈的基础上进行的。此外,还进行了生物标志物正交分析。
In the first two rounds, 42 pathologists from 13 countries assessed all 70 cases, while 36 pathologists evaluated 41 non-unanimous cases in the third round. Kappa values for invasiveness increased in rounds 1, 2, and 3 to 0.27, 0.45 and 0.62, respectively. In contrast to low variation in total tumor size measurements (6%), a marked increase in invasive tumor size variation was observed (42%), which was associated with high uncertainty. In the third round 10 cases were non-invasive, all without recurrence. The modified classification showed in the 3rd round marked reduction of the variation in pT staging compared to the current WHO classification. Proliferation rate, tumor mutational burden, and transcriptomic profiles supported the distinction between invasive cases and non-invasive cases of the modified classification.
在前两轮中,来自13个国家的42名病理学家评估了所有70例病例,而36名病理学家在第三轮中评估了41例非一致病例。在第1、2和3轮中,侵袭性的Kappa值分别增加到0.27、0.45和0.62。与总肿瘤大小测量值的低变化(6%)相比,观察到侵袭性肿瘤大小变化显著增加(42%),这与高不确定性有关。在第三轮中,10例为非侵袭性病例,均无复发。第三轮修改后的分类显示,与当前世界卫生组织分类相比,pT分期的变化显著减少。增殖率、肿瘤突变负荷和转录组谱支持了改良分类的侵袭性病例和非侵袭性病例之间的区别。
The modified classification demonstrates essentially higher reproducibility compared to the current WHO classification in NMA. The modified classification proves valuable in identifying low-risk lesions that are entirely non-invasive, and is supported by biomarker analysis.
与目前世界卫生组织在NMA中的分类相比,修改后的分类显示出更高的再现性。修改后的分类在识别完全非侵袭性的低风险病变方面具有重要价值,并得到了生物标志物分析的支持。
文章重点总结
小肺腺癌侵袭性的可重复性研究:基于
WHO和改良分类,并辅以生物标志物支持
• 对小肺非黏液腺癌(NMA)进行侵袭性评估,以确保pT分期的准确性。
• 比较
世界卫生组织
(WHO)
分类与一种新提出的
改良分类
在诊断一致性上的差异。
•
回顾性病例对照研究
:纳入
70例pT1N0M0肺腺癌患者,5年随访。
•
多轮评估
:
42位肺病理学家按照WHO分类进行第一次评估,接受培训后按改良分类进行第二次评估,第三次进行反馈后再次评估。
•
生物标志物分析
:进行增殖率、肿瘤突变负担(
TMB)、转录组学分析。
• 侵袭性肿瘤大小测量存在较大差异(42%变异)。
• 在第3轮中,10个病例被一致判定为非侵袭性(AIS),且未发生复发。
• 肿瘤突变负担(TMB)在非侵袭性腺癌中较低(2.7 vs 9.0)。
• 基因表达谱显示侵袭性与非侵袭性腺癌存在显著差异,富集在EMT(上皮-间充质转化)和增殖相关基因通路中。
•
改良分类
在小肺腺癌侵袭性评估中的可重复性显著优于
WHO分类。
• 改良分类能够更准确地识别低风险的完全非侵袭性病变(AIS)。
• 生物标志物分析(增殖率、基因突变、基因表达谱)支持改良分类的有效性。
• 该研究为小肺腺癌的侵袭性分类提供了更精确的标准。
• 生物标志物与病理特征的结合,有助于改善肺腺癌患者的个体化治疗方案。
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