Abstract
Purpose
Here, we investigated expression modules reflecting the reciprocal expression of the cancer microenvironment and immune response-related genes associated with poor prognosis in primary central nervous system lymphoma (PCNSL).
Methods
Weighted gene coexpression network analysis revealed representative modules, including neurogenesis, immune response, anti-virus, microenvironment, gene expression and translation, extracellular matrix, morphogenesis, and cell adhesion in the transcriptome data of 31 PCNSL samples.
Results
Gene expression networks were also reflected by protein–protein interaction networks. In particular, some of the hub genes were highly expressed in patients with PCNSL with prognoses as follows: AQP4, SLC1A3, GFAP, CXCL9, CXCL10, GBP2, IFI6, OAS2, IFIT3, DCN, LRP1, and LUM with good prognosis; and STAT1, IFITM3, GZMB, ISG15, LY6E, TGFB1, PLAUR, MMP4, FTH1, PLAU, CSF3R, FGR, POSTN, CCR7, TAS1R3, small ribosomal subunit genes, and collagen type 1/3/4/6 genes with poor prognosis. Furthermore, prognosis prediction formulae were constructed using the Cox proportional-hazards regression model, which demonstrated that the IP-10 receptor gene CXCR3 and type I interferon-induced protein gene IFI44L could predict patient survival in PCNSL.
Conclusion
These results indicate that the differential expression and balance of immune response and microenvironment genes may be required for PCNSL tumor growth or prognosis prediction, which would help understanding the mechanism of tumorigenesis and potential therapeutic targets in PCNSL.
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Availability of data and materials
Data and materials for the study are included in the manuscript and supplementary information.
Abbreviations
- ABC:
-
Activated B cell
- AUC:
-
Area under the curve
- BBB:
-
Blood–brain barrier
- CI:
-
Confidential interval
- CNS:
-
Central nervous system
- COL:
-
Collagen
- DEGs:
-
Differentially expressed genes
- DLBCL:
-
Diffuse large B cell lymphoma
- EBV:
-
Epstein–Barr virus
- ECM:
-
Extracellular matrix
- FDR:
-
False discovery rate
- FL:
-
Follicular lymphoma
- FPKM:
-
Fragments per kilobase of exon per million reads mapped
- GO:
-
Gene ontology
- GSEA:
-
Gene set enrichment analysis
- HD-MTX:
-
High-dose methotrexate
- HR:
-
Hazard ratio
- IELSG:
-
International Extranodal Lymphoma Study Group
- KEGG:
-
Kyoto Encyclopedia of Genes and Genomes
- KPS:
-
Karnofsky Performance Status
- LDH:
-
Lactate dehydrogenase
- MAD:
-
Mean absolute deviation
- MCODE:
-
Molecular Complex Detection
- MSKCC:
-
Memorial Sloan Kettering Cancer Center
- NAFLD:
-
Non-alcoholic fatty liver disease
- NGS:
-
Next generation sequencing
- NHL:
-
Non-Hodgkin’s lymphoma
- non-GCB:
-
Non-germinal center B cell-like
- OS:
-
Overall survival
- PCNSL:
-
Primary central nervous system lymphoma
- PKA:
-
Protein kinase A
- PPI:
-
Protein–protein interaction
- PRPS:
-
Ribosomal subunits
- ROC:
-
Receiver operating characteristic
- SNV/indel:
-
Single nucleotide variant/insertion/deletion
- STRING:
-
Search Tool of the Retrieval of Interacting Genes Database
- WCNA:
-
Weighted correlation network analysis
- WGCNA:
-
Weighted gene coexpression network analysis
- WHO:
-
World Health Organization
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Acknowledgements
This study was supported in part by the MEXT KAKENHI Grant Number 21H03045 to RY. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Funding
This study was supported in part by the MEXT KAKENHI Grant Number 21H03045 to RY. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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YT and RY designed the experiments. JF, YI, KK and HH diagnosed and treated patients and collected samples. YT, MH, KY, AH and RY performed the experiments. YT, MH, KY, AH and RY analyzed data. YT and RY wrote the manuscript.
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All experiments comply with the Ethics Committee of Kyoto Prefectural University of Medicine (RBMR-G-146).
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Takashima, Y., Hamano, M., Yoshii, K. et al. Reciprocal expression of the immune response genes CXCR3 and IFI44L as module hubs are associated with patient survivals in primary central nervous system lymphoma. Int J Clin Oncol 28, 468–481 (2023). https://doi.org/10.1007/s10147-022-02285-8
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DOI: https://doi.org/10.1007/s10147-022-02285-8