Prognostic significance of micronest in cancer stroma in resected lung squamous cell carcinoma

IF 2.7 2区医学 Q2 PATHOLOGY

Human pathology Pub Date : 2024-06-22 DOI:10.1016/j.humpath.2024.06.010

Yasunori Kaminuma , Tokiko Nakai , Keiju Aokage , Tetsuro Taki , Tomohiro Miyoshi , Kenta Tane , Joji Samejima , Saori Miyazaki , Naoya Sakamoto , Shingo Sakashita , Motohiro Kojima , Reiko Watanabe , Masahiro Tsuboi , Genichiro Ishii

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引用次数: 0

Abstract

Tumor budding in the cancer stroma has been reported to be a prognostic factor in non-small cell lung cancer. Micronest in cancer stroma (MICS) is often observed as a formation that is larger and more conspicuous than budding, but its clinicopathologic significance is unclear. In this study, we aimed to examine the clinicopathological significance of MICS in lung squamous cell carcinoma (LSqCC).

A total of 198 consecutive patients with pathologically diagnosed LSqCC (anyT N0-1M0) were enrolled in this study. MICS were defined as those that met the following criteria: (1) consisting of 5–200 tumor cells or less than 200 μm in diameter and (2) more than 200 μm away from the adjacent main lesion. The prognostic impact of the presence or absence of MICS and the characteristics of MICS-forming cancer cells were evaluated by immunohistochemistry (IHC).

MICS was observed in 57 patients (28.8%), and overall survival (OS) and recurrence-free survival (RFS) were significantly shorter in the MICS-positive group (OS: 44.4% vs. 84.4%, p < 0.001; RFS: 30.0% vs. 82.6%, p < 0.001). Univariate and multivariate analyses revealed that the presence of MICS was an independent poor prognostic factor for OS (hazard ratio [HR] 3.54, p < 0.001) and RFS (HR 4.99, p < 0.001). Immunohistochemistry showed that the expression levels of the cell-cell adhesion molecule E-cadherin and hypoxia-induced protein GLUT-1 were significantly decreased in cancer cells forming MICS lesions compared to the tumor component excluding MICS within the same tumor (non-MICS lesions).

Our data show that MICS is a distinct morphological feature with important biological and prognostic significance.

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切除肺鳞状细胞癌基质中微粒体的预后意义

据报道，癌症基质中的肿瘤萌芽是非小细胞肺癌的一个预后因素。癌症基质中的微小肿瘤（MICS）常常被观察到，其形成比出芽更大、更明显，但其临床病理学意义尚不清楚。本研究旨在探讨肺鳞状细胞癌（LSqCC）中 MICS 的临床病理学意义。本研究共纳入了198例经病理诊断为LSqCC（anyT N0-1M0）的患者。MICS的定义是符合以下标准的肿瘤：(1)由 5-200 个肿瘤细胞组成或直径小于 200 μm；(2)与邻近主要病灶的距离大于 200 μm。免疫组化（IHC）评估了是否存在MICS对预后的影响以及MICS形成癌细胞的特征。57例患者（28.8%）观察到了MICS，MICS阳性组的总生存期（OS）和无复发生存期（RFS）明显较短（OS：44.4% vs. 84.4%，P＜0.05）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Human pathology 医学-病理学

CiteScore

5.30

自引率

6.10%

发文量

206

审稿时长

21 days

期刊介绍： Human Pathology is designed to bring information of clinicopathologic significance to human disease to the laboratory and clinical physician. It presents information drawn from morphologic and clinical laboratory studies with direct relevance to the understanding of human diseases. Papers published concern morphologic and clinicopathologic observations, reviews of diseases, analyses of problems in pathology, significant collections of case material and advances in concepts or techniques of value in the analysis and diagnosis of disease. Theoretical and experimental pathology and molecular biology pertinent to human disease are included. This critical journal is well illustrated with exceptional reproductions of photomicrographs and microscopic anatomy.