RRC ID |
81784
|
Author |
Kusakabe Y, Matsumoto K, Tsuyuki T, Hayashi Y, Watanabe H.
|
Title |
Baicalin target protein, Annexin A2, is a target of new antitumor drugs.
|
Journal |
Sci Rep
|
Abstract |
Baicalin is a flavonoid extracted from Scutellaria baicalensis Georgi. As it has significant antitumor and apoptosis-inducing effects, baicalin may be useful as a lead compound in new antitumor drug development. However, as the pharmacological actions of baicalin have yet to be elucidated, we isolated its target protein, which was successfully identified as Annexin A2. Annexin A2 forms a heterotetramer with S100A10 protein, which plays an important role in the plasminogen activator system. The heterotetramer bound to tissue plasminogen activator (tPA) activates the conversion of plasminogen to plasmin and promotes the expression of STAT-3 and NF-κB, which are target genes involved in the development of cancer. Moreover, NF-κB and STAT-3 induce the expression of cell inhibitors of apoptotic proteins and inhibit apoptosis. To examine whether these antitumor and apoptosis-inducing effects of baicalin are mediated by Annexin A2, we prepared Annexin A2 knockdown HepG2 cells. We compared mRNA expression by RT-qPCR and apoptosis by caspase-3 activity assays in Annexin A2 knockdown HepG2 cells. The results showed that the antitumor and apoptosis-inducing effects of baicalin are mediated by Annexin A2. The results of this study suggest that agents capable of inhibiting Annexin A2 may be useful candidates for the development of novel antitumor agents.
|
Volume |
14(1)
|
Pages |
21814
|
Published |
2024-9-18
|
DOI |
10.1038/s41598-024-68528-y
|
PII |
10.1038/s41598-024-68528-y
|
PMID |
39294172
|
PMC |
PMC11410801
|
MeSH |
Annexin A2* / genetics
Annexin A2* / metabolism
Antineoplastic Agents* / pharmacology
Apoptosis* / drug effects
Flavonoids* / pharmacology
Gene Knockdown Techniques
Hep G2 Cells
Humans
NF-kappa B / metabolism
S100 Proteins / genetics
S100 Proteins / metabolism
STAT3 Transcription Factor / metabolism
Scutellaria baicalensis / chemistry
|
IF |
3.998
|
Resource |
Human and Animal Cells |
Hep G2 |