Summary of the surface phenotype of KIV and conventional plasmablasts
. | KIVs . | Conventional plasmablasts . |
---|---|---|
CD19 | Heterogeneous (∼25% positivity) | Uniformly low |
CD20 | Heterogeneous (∼5% positivity) | Negative |
CD38 | 100% high positivity | 100% high positivity |
IgM | 100% high positivity | Heterogeneous (∼20% positivity) |
κ/λ | Monotypic λ (100% high positivity) | Balanced κ/λ ratio (60/40%) |
CD27 | Heterogeneous (∼25% positivity) | 100% high positivity |
CD40 | Low/negative | Heterogeneous |
CD70 | Heterogeneous (6% positivity) | Negative |
CD86 | Heterogeneous (10% positivity) | Mostly positive |
CD137L | Negative | Negative |
OX40-L | Negative | Negative |
ICOS-L | Negative | Negative |
BAFF-R | Negative | Negative |
PD-L1 | Negative | Negative |
. | KIVs . | Conventional plasmablasts . |
---|---|---|
CD19 | Heterogeneous (∼25% positivity) | Uniformly low |
CD20 | Heterogeneous (∼5% positivity) | Negative |
CD38 | 100% high positivity | 100% high positivity |
IgM | 100% high positivity | Heterogeneous (∼20% positivity) |
κ/λ | Monotypic λ (100% high positivity) | Balanced κ/λ ratio (60/40%) |
CD27 | Heterogeneous (∼25% positivity) | 100% high positivity |
CD40 | Low/negative | Heterogeneous |
CD70 | Heterogeneous (6% positivity) | Negative |
CD86 | Heterogeneous (10% positivity) | Mostly positive |
CD137L | Negative | Negative |
OX40-L | Negative | Negative |
ICOS-L | Negative | Negative |
BAFF-R | Negative | Negative |
PD-L1 | Negative | Negative |