Notch activator cyclopiazonic acid induces apoptosis in HL-60 cells through calcineurin activation.
J Antibiot (Tokyo)
; 77(1): 30-38, 2024 01.
Article
in En
| MEDLINE
| ID: mdl-37938761
ABSTRACT
We screened a library of microbial extracts and compounds library using our constructed assay cells and found pulicatins F (1) and G (2), and cyclopiazonic acid (CPA) (3) as Notch activators. Pulicatin F (1) and (±)-pulicatin G were synthesized and their activities were evaluated. Notch activation of CPA (3) was investigated using Western blot and RT-PCR. CPA (3) increased protein level of HES1 and mRNA expression of HES1. Also, the expression of FMS-like tyrosine kinase 3 (FLT3), which was known to inhibit apoptosis, was also inhibited by CPA (3) addition. The Notch activation by CPA (3) and cytotoxicity against HL-60 were clearly canceled by addition of FK506, which is an inhibitor of calcineurin (CaN). In addition, it was revealed that CPA (3) induced apoptosis in HL-60 cells.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Apoptosis
/
Calcineurin
Limits:
Humans
Language:
En
Journal:
J Antibiot (Tokyo)
Year:
2024
Document type:
Article
Affiliation country: