What question did this study set out to answer?

This research aims to explore the interactions between macrophages and tumor B-cells in primary cutaneous DLBCL.

December 8, 2025BloodOpen Access

Cutaneous diffuse large B-cell lymphoma induce a macrophage immunosuppressive phenotype through IL-10 secretion

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Experimental findings demonstrate immunosuppressive macrophage changes in PCDLBCL-LT, indicating cytokines may promote tumor survival.

This research aims to explore the interactions between macrophages and tumor B-cells in primary cutaneous DLBCL.
Utilized ARSI cell line and PCDLBCL-LT patient-derived xenografts for analysis.
Co-cultured primary monocytes and THP-1 cell line with tumor cells.
Conducted flow cytometry to assess macrophage activation markers.
Performed RNAseq for gene signature identification and cytokine profiling.
ARSI cell line altered macrophage phenotype, increasing CD163 and immunosuppressive factors.
IL-10 levels were significantly increased in macrophages after co-culture with tumor cells.
Macrophages inhibited T-cell proliferation and enhanced survival of PCDLBCL-LT cells under drug exposure.

Peanne et al. (2025) studied this question.

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December 8, 2025BloodOpen Access

View Full Paper

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Authors

Experimental findings demonstrate immunosuppressive macrophage changes in PCDLBCL-LT, indicating cytokines may promote tumor survival.

This research aims to explore the interactions between macrophages and tumor B-cells in primary cutaneous DLBCL.
Utilized ARSI cell line and PCDLBCL-LT patient-derived xenografts for analysis.
Co-cultured primary monocytes and THP-1 cell line with tumor cells.
Conducted flow cytometry to assess macrophage activation markers.
Performed RNAseq for gene signature identification and cytokine profiling.
ARSI cell line altered macrophage phenotype, increasing CD163 and immunosuppressive factors.
IL-10 levels were significantly increased in macrophages after co-culture with tumor cells.
Macrophages inhibited T-cell proliferation and enhanced survival of PCDLBCL-LT cells under drug exposure.

Peanne et al. (2025) studied this question.

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