Evidence map›Paper›PMID 24197132›Full record

ArticleCancer research2014

Bcl2 induces DNA replication stress by inhibiting ribonucleotide reductase.

Maohua Xie, Yun Yen, Taofeek K Owonikoko, Suresh S Ramalingam, Fadlo R Khuri, Walter J Curran, Paul W Doetsch, Xingming Deng

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. DNA damage responses that enhance resilience to replication stress.Cellular and molecular life sciences : CMLS · 2021
    Review
  7. Article
  8. Histone dynamics during DNA replication stress.Journal of biomedical science · 2021
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. DNA replication stress: oncogenes in the spotlight.Genetics and molecular biology · 2019
    Article
  16. Review
  17. Article
  18. Rescue from replication stress during mitosis.Cell cycle (Georgetown, Tex.) · 2017
    Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Maohua XieAuthors' Affiliations: Departments of Radiation Oncology, Hematology and Medical Oncology, and Biochemistry, Emory University School of Medicine and Winship Cancer Institute of Emory University, Atlanta, Georgia; and Department of Clinical and Molecular Pharmacology, City of Hope National Medical Center, Duarte, California.
Yun Yen
Taofeek K Owonikoko
Suresh S Ramalingam
Fadlo R Khuri
Walter J Curran
Paul W Doetsch
Xingming Deng
City Of Hope National Medical Center · USEmory University · US

Funding

Structure-based anti-cancer drug developmentR01CA136534 · NCI · EMORY UNIVERSITY · PI DENG, XINGMING · 2010 to 2020
$3.4M
Nicotine/NNK Signaling in Human Lung Cancer CellsR01CA112183 · NCI · UNIVERSITY OF FLORIDA · PI DENG, XINGMING · 2005 to 2008
$891k
NCI NIH HHS R01 CA112183NCI NIH HHS R01CA112183NCI NIH HHS R01 CA136534NCI NIH HHS R01CA136534
6 · The paper itself

Abstract

DNA replication stress is an inefficient DNA synthesis process that leads replication forks to progress slowly or stall. Two main factors that cause replication stress are alterations in pools of deoxyribonucleotide (dNTP) precursors required for DNA synthesis and changes in the activity of proteins required for synthesis of dNTPs. Ribonucleotide reductase (RNR), containing regulatory hRRM1 and catalytic hRRM2 subunits, is the enzyme that catalyzes the conversion of ribonucleoside diphosphates (NDP) to deoxyribonucleoside diphosphates (dNDP) and thereby provides dNTP precursors needed for the synthesis of DNA. Here, we demonstrate that either endogenous or exogenous expression of Bcl2 results in decreases in RNR activity and intracellular dNTP, retardation of DNA replication fork progression, and increased rate of fork asymmetry leading to DNA replication stress. Bcl2 colocalizes with hRRM1 and hRRM2 in the cytoplasm and directly interacts via its BH4 domain with hRRM2 but not hRRM1. Removal of the BH4 domain of Bcl2 abrogates its inhibitory effects on RNR activity, dNTP pool level, and DNA replication. Intriguingly, Bcl2 directly inhibits RNR activity by disrupting the functional hRRM1/hRRM2 complex via its BH4 domain. Our findings argue that Bcl2 reduces intracellular dNTPs by inhibiting ribonucleotide reductase activity, thereby providing insight into how Bcl2 triggers DNA replication stress.

Indexed as

DNA ReplicationAnimalsCell Line, TumorDNA DamageHumansLung NeoplasmsMiceProto-Oncogene Proteins c-bcl-2RatsRibonucleotide ReductasesSignal TransductionTransfectionTumor Suppressor ProteinsProto-Oncogene Proteins c-bcl-2Ribonucleotide ReductasesTumor Suppressor Proteins

Identifiers

PMID24197132
PMCPMC3887143
OpenAlexW2123291066

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.