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Journal of Cancer Research and Clinical Oncology

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15.07.2023 | Research

Identification of pyroptosis-related signature and development of a novel prognostic model in diffuse large B-cell lymphoma

verfasst von: Liemei Lv, Yu Zhang, Ran Kong, Cong Wang, Xin Wang, Xiangxiang Zhou

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 14/2023

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Abstract

Purpose

Emerging evidence suggests that pyroptosis plays an essential role in the development and progression of multiple cancers. However, the role of pyroptosis remains elusive in diffuse large B-cell lymphoma (DLBCL).

Methods

The expression profile data of DLBCL and normal samples of pyroptosis-related genes (PRGs) were analyzed, and the clinical characteristics of DLBCL patients were further investigated. A prognostic model was established using LASSO-Cox regression analysis. The expression of these PRGs was validated by qRT-PCR in DLBCL cell lines. Cell proliferation assay and flow cytometry were utilized to explore the impact of pyroptosis inhibitor (disulfiram, DSF) combined with PD1/PD-L1 inhibitor (BMS1166) on DLBCL cell proliferation.

Results

Most PRGs were dysregulated in DLBCL samples and associated with overall survival (OS). Six PRGs were selected to construct a prognostic risk score model. The qRT-PCR analysis revealed that CASP8, CASP9, NLRP1, NLRP6, and TIRAP are downregulated, while SCAF11 was significantly upregulated in DLBCL cell lines. This prognostic model divided DLBCL patients into low-risk and high-risk groups. Patients in the low-risk group exhibited lower mortality and longer OS than those in the high-risk group. The ROC curve and nomogram demonstrated this model's excellent predictive performance. GO and KEGG enrichment indicated that the differentially expressed genes (DEGs) between subgroups were associated with cellular protein modification processes and JAK-STAT signaling pathway regulation. Moreover, the risk score was correlated with the immune profile. Cell proliferation assay and flow cytometry further validated the synergistic anti-tumor effects of DSF and BMS1166 on DLBCL cells.

Conclusion

In summary, we developed a comprehensive prognostic model based on PRGs characteristics, which accurately predicted the prognosis of DLBCL patients. Pyroptosis-targeting coupled with immunotherapies would be a promising therapeutic strategy for DLBCL.

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Titel: Identification of pyroptosis-related signature and development of a novel prognostic model in diffuse large B-cell lymphoma
verfasst von: Liemei Lv
Yu Zhang
Ran Kong
Cong Wang
Xin Wang
Xiangxiang Zhou
Publikationsdatum: 15.07.2023
Verlag: Springer Berlin Heidelberg
Erschienen in: Journal of Cancer Research and Clinical Oncology / Ausgabe 14/2023
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI: https://doi.org/10.1007/s00432-023-05018-0

Springer Medizin

Identification of pyroptosis-related signature and development of a novel prognostic model in diffuse large B-cell lymphoma

Abstract

Purpose

Methods

Results

Conclusion

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Erhöhte Mortalität bei postpartalem Brustkrebs

Hypertherme Chemotherapie bietet Chance auf Blasenerhalt

Ein Drittel der jungen Ärztinnen und Ärzte erwägt abzuwandern

Bessere Prognose mit links- statt rechtsseitigem Kolon-Ca.

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Springer Medizin

Abstract

Purpose

Methods

Results

Conclusion

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