passages.id: split_9_validation_1601_passage
passages.type: progene_text
passages.text: The aim of this study was to determine whether NK cell receptor ( NKR ) expression could modulate cytotoxicity of oligoclonal CD8 + T cells present in the synovial fluid ( SF ) of HLA-B27 - reactive arthritis ( ReA ) patients , especially in a TCRBV1 population shared among different patients and cytotoxic toward HLA-B27 .