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Published in: Journal of Translational Medicine 1/2021

Open Access 01-12-2021 | Checkpoint Inhibitors | Research

Immune and stromal scoring system associated with tumor microenvironment and prognosis: a gene-based multi-cancer analysis

Authors: Zihang Zeng, Jiali Li, Jianguo Zhang, Yangyi Li, Xingyu Liu, Jiarui Chen, Zhengrong Huang, Qiuji Wu, Yan Gong, Conghua Xie

Published in: Journal of Translational Medicine | Issue 1/2021

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Abstract

Background

Tumor microenvironment (TME) is associated with tumor progression and prognosis. Previous studies provided tools to estimate immune and stromal cell infiltration in TME. However, there is still a lack of single index to reflect both immune and stromal status associated with prognosis and immunotherapy responses.

Methods

A novel immune and stromal scoring system named ISTMEscore was developed. A total of 15 datasets were used to train and validate this system, containing 2965 samples from lung adenocarcinoma, skin cutaneous melanoma and head and neck squamous cell carcinoma.

Results

The patients with high immune and low stromal scores (HL) were associated with low ratio of T cell co-inhibitory/stimulatory molecules and low levels of angiogenesis markers, while the patients with low immune and high stromal scores (LH) had the opposite characteristics. The HL patients had immune-centered networks, while the patients with low immune and low stromal scores (LL) had desert-like networks. Moreover, copy number alteration burden was decreased in the HL patients. For the clinical characteristics, our TME classification was an independent prognostic factor. In the 5 cohorts with immunotherapy, the LH patients were linked to the lowest response rate.

Conclusions

ISTMEscore system could reflect the TME status and predict the prognosis. Compared to previous TME scores, our ISTMEscore was superior in the prediction of prognosis and immunotherapy response.
Appendix
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Metadata
Title
Immune and stromal scoring system associated with tumor microenvironment and prognosis: a gene-based multi-cancer analysis
Authors
Zihang Zeng
Jiali Li
Jianguo Zhang
Yangyi Li
Xingyu Liu
Jiarui Chen
Zhengrong Huang
Qiuji Wu
Yan Gong
Conghua Xie
Publication date
01-12-2021
Publisher
BioMed Central
Published in
Journal of Translational Medicine / Issue 1/2021
Electronic ISSN: 1479-5876
DOI
https://doi.org/10.1186/s12967-021-03002-1

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