American Association for Cancer Research
ccr-22-3396_supplementary_figure_s4_suppfs4.pdf (6.37 MB)

Supplementary Figure S4 from Comprehensive Analysis of Tumor Microenvironment Reveals Prognostic ceRNA Network Related to Immune Infiltration in Sarcoma

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journal contribution
posted on 2023-10-02, 07:44 authored by Dongliang Leng, Ziyi Yang, Heng Sun, Chengcheng Song, Chen Huang, Ka U. Ip, Guokai Chen, Chu-Xia Deng, Xiaohua Douglas Zhang, Qi Zhao

Supplementary Figure S4. Construction of global ceRNA network between low and high TIILs SARC subtypes.


National Key Research and Development Program of China (NKPs)

Macau University of Science and Technology Foundation (MUST Foundation)

Natural Science Foundation of Guangdong Province (Guangdong Natural Science Foundation)

Shenzhen Technical Project (Shenzhen Key Technical program)

Universidade de Macau (UM)

National Institutes of Health (NIH)

Dr. Stanley Ho Medical Development Foundation

Zhongnanshan Medical Foundation

DRC at Washington University

Ministry of Education Frontiers Science Centre for Precision Oncology, University of Macau



Sarcoma is the second most common solid tumor type in children and adolescents. The high level of tumor heterogeneity as well as aggressive behavior of sarcomas brings serious difficulties to developing effective therapeutic strategies for clinical application. Therefore, it is of great importance to identify accurate biomarkers for early detection and prognostic prediction of sarcomas. In this study, we characterized three subtypes of sarcomas based on tumor immune infiltration levels (TIIL), and constructed a prognosis-related competing endogenous RNA (ceRNA) network to investigate molecular regulations in the sarcoma tumor microenvironment (TME). We further built a subnetwork consisting of mRNAs and lncRNAs that are targets of key miRNAs and strongly correlated with each other in the ceRNA network. After validation using public data and experiments in vivo and in vitro, we deeply dug the biological role of the miRNAs and lncRNAs in a subnetwork and their impact on TME. Altogether, 5 miRNAs (hsa-mir-125b-2, hsa-mir-135a-1, hsa-mir92a-2, hsa-mir-181a-2, and hsa-mir-214), 3 lncRNAs (LINC00641, LINC01146, and LINC00892), and 10 mRNAs (AGO2, CXCL10, CD86, CASP1, IKZF1, CD27, CD247, CD69, CCR2, and CSF2RB) in the subnetwork were identified as vital regulators to shape the TME. On the basis of the systematic network, we identified that trichostatin A, a pan-HDAC inhibitor, could potentially regulate the TME of sarcoma, thereby inhibiting the tumor growth. Our study identifies a ceRNA network as a promising biomarker for sarcoma. This system provides a more comprehensive understanding and a novel perspective of how ceRNAs are involved in shaping sarcoma TME.

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