Evidence map›Paper›PMID 34324416›Full record

ArticleeLife2021

A subset of CB002 xanthine analogs bypass p53-signaling to restore a p53 transcriptome and target an S-phase cell cycle checkpoint in tumors with mutated-p53.

Liz Hernandez Borrero, David T Dicker, John Santiago, Jennifer Sanders, Xiaobing Tian, Nagib Ahsan, Avital Lev, Lanlan Zhou, Wafik S El-Deiry

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Review
  3. Targeting apoptotic pathways for cancer therapy.The Journal of clinical investigation · 2024
    Review
  4. Shared gene targets of the ATF4 and p53 transcriptional networks.bioRxiv : the preprint server for biology · 2023
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. 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

9 authors at 3 institutions in 1 country.

Liz Hernandez BorreroLaboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, United States.ORCID 0000-0003-4249-5358
David T DickerLaboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, United States.
John SantiagoDepartment of Pathology and Laboratory Medicine, The Warren Alpert Medical School, Brown University, Providence, United States.
Jennifer SandersThe Joint Program in Cancer Biology, Brown University and the Lifespan Health System, Providence, United States.
Xiaobing TianLaboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, United States.
Nagib AhsanCOBRE Center for Cancer Research Development, Proteomics Core Facility, Rhode Island Hospital, Providence, United States.
Avital LevThe Joint Program in Cancer Biology, Brown University and the Lifespan Health System, Providence, United States.
Lanlan ZhouLaboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, United States.
Wafik S El-DeiryLaboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, United States.ORCID 0000-0002-9577-8266
Fox Chase Cancer Center · USBrown University · USRhode Island Hospital · US

Funding

Targeting the oncogenic mutant p53 signaling in colorectal cancer therapyR01CA176289 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI EL-DEIRY, WAFIK S. · 2014 to 2018
$2.0M
NCI NIH HHS R01 CA176289
6 · The paper itself

Abstract

Mutations in TP53 occur commonly in the majority of human tumors and confer aggressive tumor phenotypes, including metastasis and therapy resistance. CB002 and structural-analogs restore p53 signaling in tumors with mutant-p53 but we find that unlike other xanthines such as caffeine, pentoxifylline, and theophylline, they do not deregulate the G2 checkpoint. Novel CB002-analogs induce pro-apoptotic Noxa protein in an ATF3/4-dependent manner, whereas caffeine, pentoxifylline, and theophylline do not. By contrast to caffeine, CB002-analogs target an S-phase checkpoint associated with increased p-RPA/RPA2, p-ATR, decreased Cyclin A, p-histone H3 expression, and downregulation of essential proteins in DNA-synthesis and DNA-repair. CB002-analog #4 enhances cell death, and decreases Ki-67 in patient-derived tumor-organoids without toxicity to normal human cells. Preliminary in vivo studies demonstrate anti-tumor efficacy in mice. Thus, a novel class of anti-cancer drugs shows the activation of p53 pathway signaling in tumors with mutated p53, and targets an S-phase checkpoint.

Indexed as

MutationTranscriptomeAniline CompoundsAnimalsAntineoplastic AgentsApoptosisCell Cycle ProteinsCell Line, TumorDNA DamageFemaleHumansMiceProto-Oncogene Proteins c-bcl-2PurinesRandom AllocationSignal TransductionAniline CompoundsAntineoplastic AgentsCB002Cell Cycle ProteinsPMAIP1 protein, humanProto-Oncogene Proteins c-bcl-2PurinesTumor Suppressor Protein p53biochemistrycancercancer biologyCB002chemical biologyhumannoxap53therapyxanthines

Identifiers

PMID34324416
PMCPMC8321552
OpenAlexW3185727009

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.