Abstract
Background/Aim: Anticancer peptide PNC-27 binds to HDM-2 protein on cancer cell membranes inducing the formation of cytotoxic transmembrane pores. Herein, we investigated HDM-2 membrane expression and the effect of PNC-27 treatment on human non-stem cell acute myelogenous leukemia cell lines: U937, acute monocytic leukemia; OCI-AML3, acute myelomonocytic leukemia and HL60, acute promyelocytic leukemia. Materials and Methods: We measured cell surface membrane expression of HDM-2 using flow cytometry. Cell viability was assessed using MTT assay while direct cytotoxicity was measured by lactate dehydrogenase (LDH) release and induction of apoptotic markers annexin V and caspase-3. Results: HDM-2 is expressed at high levels in membranes of U937, OCIAML3 and HL-60 cells. PNC-27 can bind to membrane HDM-2 to induce cell necrosis and LDH release within 4 h. Conclusion: Targeting membrane HDM-2 can be a potential strategy to treat leukemia. PNC-27 targeting membrane HDM-2 demonstrated significant anti-leukemia activity in a variety of leukemic cell lines.
Original language | English |
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Pages (from-to) | 4857-4867 |
Number of pages | 11 |
Journal | Anticancer Research |
Volume | 40 |
Issue number | 9 |
DOIs | |
State | Published - 1 Sep 2020 |
Externally published | Yes |
Keywords
- Cancer cell membrane
- HDM-2
- Leukemia
- PNC-27
ASJC Scopus subject areas
- Oncology
- Cancer Research