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Correspondence: Recurrent ECSIT mutation encoding V140A triggers hyperinflammation and promotes hemophagocytic syndrome in extranodal NK/T cell lymphoma

Lim, J. Q.; Huang, D.; Ong, C. K.

2024-09-22 allergy and immunology
10.1101/2024.09.19.24314011 medRxiv
Show abstract

Recurrent somatic mutation in the ECSIT gene encoding p.V140A was reported in 19.3% (17/88) extranodal natural-killer/T cell lymphoma (ENKTL) and was associated with hemophagocytic syndrome (HPS). However, another cohort of similar geographical descent also had the ECSITV140A mutation as germline in 20.0% (5/25) of ENKTL and none were somatic. The reanalysis of published data revealed that the reported somatic ECSITV140A could be germline as well. First-digit analysis on the IDs of sequencing read also found irregularity among the data that initially reported the somatic ECSITV140A mutation. As such, this study questions the only somatic genetic link of HPS in ENKTL and also introduces a simple well-known algorithm to detect data irregularity in voluminous genomic sequencing data.

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