CA1 and Bloom syndrome: RESULTS: In BS patient-derived PBMCs, CAI did not affect RIP2 activation under unstimulated conditions or following stimulation with muramyl dipeptide (MDP) plus lipopolysaccharide (LPS), but it suppressed NF-κB activation by reducing IKK phosphorylation and p65 nuclear translocation, ultimately leading to a marked attenuation of pro-inflammatory cytokines production.