4.3 Article

Reciprocal expression of the immune response genes CXCR3 and IFI44L as module hubs are associated with patient survivals in primary central nervous system lymphoma

Journal

INTERNATIONAL JOURNAL OF CLINICAL ONCOLOGY
Volume 28, Issue 3, Pages 468-481

Publisher

SPRINGER JAPAN KK
DOI: 10.1007/s10147-022-02285-8

Keywords

Primary central nervous system lymphoma; Weighted correlation network analysis; Neurogenesis; Immune response; Microenvironment; Morphogenesis

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The study investigated expression modules reflecting the reciprocal expression of cancer microenvironment and immune response-related genes associated with poor prognosis in primary central nervous system lymphoma (PCNSL). 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. The results suggest that the differential expression and balance of immune response and microenvironment genes may play a crucial role in the growth and prognosis prediction of PCNSL tumors.
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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