Effects of Hydrogen Peroxide Stress on the Nucleolar Redox Environment and Pre-rRNA Maturation.
Effects of Hydrogen Peroxide Stress on the Nucleolar Redox Environment and Pre-rRNA Maturation.
复制标题
DOI:
10.3389/fmolb.2021.678488
复制
发表时间:
2021
影响因子:
5
通讯作者:
Pestov DG
中科院分区:
文献类型:
--
作者:
Sapio RT;Burns CJ;Pestov DG
Identifying biologically relevant molecular targets of oxidative stress may provide new insights into disease mechanisms and accelerate development of novel biomarkers. Ribosome biogenesis is a fundamental prerequisite for cellular protein synthesis, but how oxidative stress affects ribosome biogenesis has not been clearly established. To monitor and control the redox environment of ribosome biogenesis, we targeted a redox-sensitive roGFP reporter and catalase, a highly efficient H2O2 scavenger, to the nucleolus, the primary site for transcription and processing of rRNA in eukaryotic cells. Imaging of mouse 3T3 cells exposed to non-cytotoxic H2O2 concentrations revealed increased oxidation of the nucleolar environment accompanied by a detectable increase in the oxidative damage marker 8-oxo-G in nucleolar RNA. Analysis of pre-rRNA processing showed a complex pattern of alterations in pre-rRNA maturation in the presence of H2O2, including inhibition of the transcription and processing of the primary 47S transcript, accumulation of 18S precursors, and inefficient 3′-end processing of 5.8S rRNA. This work introduces new tools for studies of the redox biology of the mammalian nucleolus and identifies pre-rRNA maturation steps sensitive to H2O2 stress.
登录
查看更多内容
DOI:
10.1007/978-3-642-54452-1_5
发表时间:
2014-01-01
期刊:
CHEMICAL BIOLOGY OF NUCLEIC ACIDS: FUNDAMENTALS AND CLINICAL APPLICATIONS
影响因子:
--
作者:
Kuepfer, Pascal A.;Leumann, Christian J.
通讯作者:
Leumann, Christian J.
影响因子:
4.4
作者:
Mirzaei, Hamid;Regnier, Fred
通讯作者:
Regnier, Fred
影响因子:
7.3
作者:
Henras, Anthony K.;Plisson-Chastang, Celia;O'Donohue, Marie-Francoise;Chakraborty, Anirban;Gleizes, Pierre-Emmanuel
通讯作者:
Gleizes, Pierre-Emmanuel
DOI:
10.1073/pnas.89.8.3375
发表时间:
1992-04-15
影响因子:
11.1
作者:
PARK, EM;SHIGENAGA, MK;AMES, BN
通讯作者:
AMES, BN
影响因子:
4.4
作者:
Ding, Qunxing;Markesbery, William R.;Keller, Jeffrey N.
通讯作者:
Keller, Jeffrey N.