Evidence map›Paper›PMID 20854421›Full record

ArticleAging cell2010

The telomeric protein SNM1B/Apollo is required for normal cell proliferation and embryonic development.

Shamima Akhter, Yung C Lam, Sandy Chang, Randy J Legerski

Open access · bronzeAbstract read
In one paragraph

Article in Aging cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Shamima AkhterDepartment of Genetics, The UT MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA.
Yung C Lam
Sandy Chang
Randy J Legerski
The University of Texas MD Anderson Cancer Center · US

Funding

Recognition and processing of complex lesions by components from multiple DNAP01CA097175 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI NAIRN, RODNEY S · 2004 to 2014
$15.3M
Telomere induced senescence as a supressor of tumorigenesisR01CA129037 · NCI · YALE UNIVERSITY · PI CHANG, SANDY S · 2007 to 2017
$3.1M
ISOLATION AND ANALYSIS OF HUMAN DNA REPAIR GENESR01CA052461 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI LEGERSKI, RANDY J · 1992 to 2006
$1.6M
The role of the telomere capping protein POT1 in mammalian agingR01AG028888 · NIA · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI CHANG, SANDY S · 2007 to 2009
$934k
NCI NIH HHS CA052461NCI NIH HHS CA097175NCI NIH HHS P01 CA097175NCI NIH HHS R01 CA052461NCI NIH HHS R01 CA129037NIA NIH HHS R01 AG028888
6 · The paper itself

Abstract

Conserved metallo β-Lactamase and β-CASP (CPSF-Artemis-Snm1-Pso2) domain nuclease family member SNM1B/Apollo is a shelterin-associated protein that localizes to telomeres through its interaction with TRF2. To study its in vivo role, we generated a knockout of SNM1B/Apollo in a mouse model. Snm1B/Apollo homozygous null mice die at birth with developmental delay and defects in multiple organ systems. Cell proliferation defects were observed in Snm1B/Apollo mutant mouse embryonic fibroblasts (MEFs) owing to high levels of telomeric end-to-end fusions. Deficiency of the nonhomologous end-joining (NHEJ) factor Ku70, but not p53, rescued the developmental defects and lethality observed in Snm1B/Apollo mutant mice as well as the impaired proliferation of Snm1B/Apollo-deficient MEFs. These findings demonstrate that SNM1B/Apollo is required to protect telomeres against NHEJ-mediated repair, which results in genomic instability and the consequent multi-organ developmental failure. Although Snm1B/Apollo-deficient MEFs exhibited high levels of apoptosis, abrogation of p53-dependent programmed cell death did not rescue the multi-organ developmental failure in the mice.

Indexed as

Cell ProliferationEmbryonic DevelopmentAnimalsApoptosisCell Cycle ProteinsEmbryo, MammalianExodeoxyribonucleasesFemaleGenomic InstabilityMiceMice, KnockoutPregnancyTelomereTelomere-Binding ProteinsTumor Suppressor Protein p53Cell Cycle ProteinsDclre1b protein, mouseExodeoxyribonucleasesTelomere-Binding ProteinsTumor Suppressor Protein p53

Identifiers

PMID20854421
PMCPMC3719988
OpenAlexW1578945800

What OpenQuestion holds

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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.