Evidence map›Paper›PMID 22739266›Full record

ArticleChinese journal of cancer2012

Sapacitabine, the prodrug of CNDAC, is a nucleoside analog with a unique action mechanism of inducing DNA strand breaks.

Xiao-Jun Liu, Billie Nowak, Ya-Qing Wang, William Plunkett

Open access · bronzeAbstract read
In one paragraph

Article in Chinese journal of cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 25 citations in OpenAlex.

  1. Review
  2. Article
  3. Targeting DNA Repair Pathways in Hematological Malignancies.International journal of molecular sciences · 2020
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
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 2 countries.

Xiao-Jun LiuDepartment of Experimental Therapeutics, University of Texas M. D. Anderson Cancer Center, Houston, TX 77054, USA.
Billie Nowak
Ya-Qing Wang
William Plunkett
The University of Texas MD Anderson Cancer Center · US

Funding

Tissue CoreP01CA081534 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KIPPS, THOMAS J · 2000 to 2016
$59.5M
University of Texas M.D. Anderson Cancer SPORE-LeukemiaP50CA100632 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI KONOPLEVA, MARINA Y · 2003 to 2023
$43.7M
BIOCHEMICAL BASIS FOR THERAPEUTIC ACTIVITYR01CA028596 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI PLUNKETT, WILLIAM K · 1985 to 2015
$3.0M
NCI NIH HHS CA100632NCI NIH HHS CA281534NCI NIH HHS CA28596NCI NIH HHS P01 CA081534NCI NIH HHS P50 CA100632NCI NIH HHS R01 CA028596
6 · The paper itself

Abstract

Sapacitabine is an orally bioavailable prodrug of the nucleoside analog 2'-C-cyano-2'-deoxy-1-β-D-arabino-pentofuranosylcytosine (CNDAC). Both the prodrug and active metabolite are in clinical trials for hematologic malignancies and/or solid tumors. CNDAC has a unique mechanism of action: after incorporation into DNA, it induces single-strand breaks (SSBs) that are converted into double-strand breaks (DSBs) when cells go through a second S phase. In our previous studies, we demonstrated that CNDAC-induced SSBs can be repaired by the transcription-coupled nucleotide excision repair pathway, whereas lethal DSBs are mainly repaired through homologous recombination. In the current work, we used clonogenic assays to compare the DNA damage repair mechanism of CNDAC with two other deoxycytidine analogs: cytarabine, which is used in hematologic malignacies, and gemcitabine, which shows activity in solid tumors. Deficiency in two Rad51 paralogs, Rad51D and XRCC3, greatly sensitized cells to CNDAC, but not to cytarabine or gemcitabine, indicating that homologous recombination is not a major mechanism for repairing damage caused by the latter two analogs. This study further suggests clinical activity and application of sapacitabine that is distinct from that of cytarabine or gemcitabine.

Indexed as

AnimalsAntimetabolites, AntineoplasticArabinonucleosidesCHO CellsCricetinaeCricetulusCytarabineCytosineDeoxycytidineDNA-Binding ProteinsDNA Breaks, Double-StrandedDNA RepairGemcitabineHomologous RecombinationInhibitory Concentration 50Prodrugs2'-cyano-2'-deoxyarabinofuranosylcytosineAntimetabolites, AntineoplasticArabinonucleosidesCytarabineCytosineDeoxycytidineDNA-Binding ProteinsGemcitabineProdrugsRAD51D protein, humansapacitabineX-ray repair cross complementing protein 3

Identifiers

PMID22739266
PMCPMC3777512
OpenAlexW1987547636

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.