| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2115252 | Cancer Letters | 2007 | 11 Pages |
Abstract
We surveyed IL-21 receptor (IL-21R) in leukemia and lymphoma and found that follicular lymphoma cells showed exceptionally high IL-21R expression. Notably, IL-21 showed divergent effects depending on the cell origin: growth stimulation in Burkitt lymphoma cell lines and adult T cell leukemia/lymphoma cell lines but induction of apoptosis in B lymphoma cell lines with t(14;18)(q32;q21), a marker karyotype of follicular lymphoma. IL-21 activated caspase-8 and -3 and reduced mitochondrial membrane potential. More importantly, IL-21 decreased Bcl-2 expression but increased Bax expression. These results support a new therapeutic approach using the IL-21/IL-21R system in follicular lymphoma.
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Authors
Norihiko Akamatsu, Yasuaki Yamada, Hiroo Hasegawa, Koki Makabe, Ryutaro Asano, Izumi Kumagai, Ken Murata, Yoshitaka Imaizumi, Kunihiro Tsukasaki, Kazuto Tsuruda, Kazuyuki Sugahara, Sunao Atogami, Katsunori Yanagihara, Shimeru Kamihira,