2021
DOI: 10.1016/j.freeradbiomed.2020.11.027
|View full text |Cite
|
Sign up to set email alerts
|

Human CREBBP acetyltransferase is impaired by etoposide quinone, an oxidative and leukemogenic metabolite of the anticancer drug etoposide through modification of redox-sensitive zinc-finger cysteine residues

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
9
0

Year Published

2021
2021
2024
2024

Publication Types

Select...
5
2

Relationship

3
4

Authors

Journals

citations
Cited by 11 publications
(9 citation statements)
references
References 68 publications
0
9
0
Order By: Relevance
“…Interestingly, the histone methyltransferases G9a and GLP are inhibited by electrophilic compounds able to eject Zn from Zn-fingers from their catalytic domain (Lenstra et al, 2018). Moreover, quinone containing compounds have been reported to inhibit the histone demethylase KDM4A and the CREBBP/p300 acetyltransferase at least in part through Zn ejection from their catalytic Zn-finger domains (Jayatunga et al, 2015;Zhang et al, 2021). We also found that generation of BQ adducts on cysteine Zn-fingers within SETD2 catalytic domain led to the formation of protein cross-links/oligomers that may contribute to enzyme inactivation (Figure 2 and Figure 4).…”
Section: Discussionmentioning
confidence: 99%
“…Interestingly, the histone methyltransferases G9a and GLP are inhibited by electrophilic compounds able to eject Zn from Zn-fingers from their catalytic domain (Lenstra et al, 2018). Moreover, quinone containing compounds have been reported to inhibit the histone demethylase KDM4A and the CREBBP/p300 acetyltransferase at least in part through Zn ejection from their catalytic Zn-finger domains (Jayatunga et al, 2015;Zhang et al, 2021). We also found that generation of BQ adducts on cysteine Zn-fingers within SETD2 catalytic domain led to the formation of protein cross-links/oligomers that may contribute to enzyme inactivation (Figure 2 and Figure 4).…”
Section: Discussionmentioning
confidence: 99%
“…CREBBP gene was functions with the histone modi cation as a transcriptional co-activator. CREBBP mutations were common in hematological malignancies and with the clinical relevance and prognostic value in the relapse of pediatric ALL (32,33). The future studies will enlarge the cohorts and prolonger the follow up time to explore the effect of the above mutated genes on the e cacy and survival of ALL.…”
Section: Discussionmentioning
confidence: 99%
“…The benzene metabolite 1,2,4-benzenetriol can influence DNA methylation and histone acetylation in K562 cells [105] . Recently, etoposide quinone has been shown to inhibit certain enzymes, such as the histone acetyltransferase CREBBPwhich is known to be involved in the leukemogenesis [106] . CREBBP(also known as CBP or KAT6A) regulates both normal and malignant hematopoiesis [107] , and the majority of Crebbp +/− or Crebbp −/− mice develop malignant hematopoietic pathologies indicating that CREBBP acts as a tumor suppressor and plays a crucial role in hematopoiesis [108] , [109] , [110] .…”
Section: Etoposide Metabolites Contribute To Therapy-related Leukemia: Non-top2 Factorsmentioning
confidence: 99%
“…CREBBP(also known as CBP or KAT6A) regulates both normal and malignant hematopoiesis [107] , and the majority of Crebbp +/− or Crebbp −/− mice develop malignant hematopoietic pathologies indicating that CREBBP acts as a tumor suppressor and plays a crucial role in hematopoiesis [108] , [109] , [110] . We recently showed that etoposide quinone can inhibit CREBBP acetyltransferase activity by reacting with cysteine within zinc fingers domains that are key for CREBBP activity [106] .…”
Section: Etoposide Metabolites Contribute To Therapy-related Leukemia: Non-top2 Factorsmentioning
confidence: 99%
See 1 more Smart Citation