In Igλ-related amyloidosis (ALλ and AHL (IgGλ/IgAλ)), the SC of Igλ has not such significant superiority as Igκ in Igκ-related amyloidosis, it was even sometimes less than Igκ, FIBA or APOA1 (Figs. 1a, and 2a). Here, BCR is linked to amyloidosis.