Loading…
IL-27 impact on NK cells activity: Implication for a robust anti-tumor response in chronic lymphocytic leukemia
•In addition to peripheral blood-NK cells, functional activity of bone marrow-NK cells are suppressed in chronic lymphocytic leukemia.•rhIL-27 can boost CD69 expression of NK cells in chronic lymphocytic leukemia.•rhIL-27 induced degranulation on bone marrow-NK cells of CLL patients.•rhIL-27 enhance...
Saved in:
Published in: | International immunopharmacology 2020-05, Vol.82, p.106350-106350, Article 106350 |
---|---|
Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | •In addition to peripheral blood-NK cells, functional activity of bone marrow-NK cells are suppressed in chronic lymphocytic leukemia.•rhIL-27 can boost CD69 expression of NK cells in chronic lymphocytic leukemia.•rhIL-27 induced degranulation on bone marrow-NK cells of CLL patients.•rhIL-27 enhanced bone marrow-NK cell cytotoxicity.•NK cell purification may lead to elimination of immunomodulatory components in CLL.
Interleukin 27 (IL-27) belongs to IL-12 cytokine family, has shown anti-tumor potential in several solid tumors, as well as hematologic malignancies. IL-27 can inhibit tumor growth and progression through direct and indirect mechanisms, such as inhibition of proliferation, angiogenesis, induction of apoptosis in tumor cells, and anti-tumor immune response. B-CLL is characterized by remarkable immune perturbation, which leads to disease complications and reduced effectiveness of the treatment. Natural killer cells (NK) are considered as an important arm for the elimination of transformed cells. However, NK cells have shown significant impairment in patients with CLL. Here we analyzed the activity of recombinant human (rh) IL-27-stimulated NK cells in bone marrow (BM) and peripheral blood (PB) of CLL patients using cell surface flow cytometry assessment, and cytotoxicity assay. We showed that rhIL-27 can increase CD69 on NK cells both in BM and PB. Interestingly, BM-NK cells treated with rhIL-27 exhibited a significant increase in degranulation and NK cell-mediated cytotoxicity as compared with untreated NK cells, whereas it did not improve NK cell activity of PB. These observations added further explanation to the anti-tumor activity of IL-27 and also could pave the way to adoption immunostimulatory adjuvant for therapies in CLL. |
---|---|
ISSN: | 1567-5769 1878-1705 |
DOI: | 10.1016/j.intimp.2020.106350 |