Germinal Centers Determine the Prognostic Relevance of Tertiary Lymphoid Structures and Are Impaired by Corticosteroids in Lung Squamous Cell Carcinoma

生发中心 肺癌 化疗 医学 淋巴结 病理 癌症研究 肿瘤科 内科学 免疫学 B细胞 抗体
作者
Karīna Siliņa,Alex Soltermann,Farkhondeh Movahedian Attar,Ruben Casanova,Zina M. Uckeley,Helen Thut,Muriel Wandres,Sergejs Isajevs,Phil F. Cheng,Alessandra Curioni‐Fontecedro,Periklis Foukas,Mitchell P. Levesque,Holger Moch,Aija Linē,Maries van den Broek
出处
期刊:Cancer Research [American Association for Cancer Research]
卷期号:78 (5): 1308-1320 被引量:331
标识
DOI:10.1158/0008-5472.can-17-1987
摘要

Abstract In solid tumors, the presence of lymph node–like structures called tertiary lymphoid structures (TLS) is associated with improved patient survival. However, little is known about how TLS develop in cancer, how their function affects survival, and whether they are affected by cancer therapy. In this study, we used multispectral microscopy, quantitative pathology, and gene expression profiling to analyze TLS formation in human lung squamous cell carcinoma (LSCC) and in an experimental model of lung TLS induction. We identified a niche of CXCL13+ perivascular and CXCL12+LTB+ and PD-L1+ epithelial cells supporting TLS formation. We also characterized sequential stages of TLS maturation in LSCC culminating in the formation of germinal centers (GC). In untreated patients, TLS density was the strongest independent prognostic marker. Furthermore, TLS density correlated with GC formation and expression of adaptive immune response–related genes. In patients treated with neoadjuvant chemotherapy, TLS density was similar, but GC formation was impaired and the prognostic value of TLS density was lost. Corticosteroids are coadministered with chemotherapy to manage side effects in LSCC patients, so we evaluated whether they impaired TLS development independently of chemotherapy. TLS density and GC formation were each reduced in chemotherapy-naïve LSCC patients treated with corticosteroids before surgery, compared with untreated patients, a finding that we confirmed in the experimental model of lung TLS induction. Overall, our results highlight the importance of GC formation in TLS during tumor development and treatment. Significance: Corticosteroid treatment during chemotherapy negatively affects the development of tertiary lymphoid structures and abrogates their prognostic value in patients with lung cancer. Cancer Res; 78(5); 1308–20. ©2018 AACR.
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