Evidence map›Paper›PMID 36262061›Full record

ArticleCancer medicine2023

Use of DNA-alkylating pyrrole-imidazole polyamides for anti-cancer drug sensitivity screening in pancreatic ductal adenocarcinoma.

Akiko Tsujimoto, Niina Matsuo, Xiaoyi Lai, Takahiro Inoue, Hiroyuki Yoda, Jason Lin, Yoshinao Shinozaki, Takayoshi Watanabe, Nobuko Koshikawa, Atsushi Takatori and 1 more

Open access · goldFull text read
In one paragraph

Article in Cancer medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 47% 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

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. 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

11 authors at 2 institutions in 1 country.

Akiko TsujimotoDivision of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan.
Niina MatsuoGraduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan.
Xiaoyi LaiDivision of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan.
Takahiro InoueGraduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan.
Hiroyuki YodaDivision of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan.ORCID 0000-0002-5528-8940
Jason LinDivision of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan.
Yoshinao ShinozakiDivision of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan.
Takayoshi WatanabeDivision of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan.
Nobuko KoshikawaDivision of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan.
Atsushi TakatoriDivision of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan.ORCID 0000-0002-2184-6721
Hiroki NagaseGraduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan.
Chiba Cancer Center · JPChiba University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundActivating mutations of the KRAS occurs in >90% of pancreatic ductal adenocarcinoma (PDAC) cases. However, direct pharmacological targeting of the activated KRAS protein has been challenging. We previously reported that KR12, a DNA-alkylating pyrrole-imidazole polyamide designed to recognize the KRAS G12D/V mutation, showed an anti-tumor effect in colorectal cancer. In this study, we evaluated the anti-tumor effect of KR12 in PDAC.

methodsKR12 was synthesized by an automated peptide synthesizer PSSM-8 and tested for anti-tumor effect in PDAC mouse models.

resultKR12 inhibited tumor growth in a spontaneous PDAC mouse model, although the anti-tumor activity appeared to be limited in a human PDAC xenograft model. We developed a pyrrole-imidazole polyamide screening process based on the hypothesis that genetic elements otherwise unaffected by KR12 could exert attenuating effects on KRAS-suppression-resistant PDAC. We identified RAD51 as a potential therapeutic target in human PDAC cells. A RAD51 inhibitor showed an inhibitory effect on cell growth and affected the cytotoxic activity of KR12 in PDAC cells.

conclusionThese data suggested that the simultaneous inhibition of RAD51 and mutant KRAS blockage would be an important therapeutic strategy for PDAC.

Indexed as

Antineoplastic AgentsCarcinoma, Pancreatic DuctalPancreatic NeoplasmsAnimalsDNAHumansImidazolesMiceNylonsProto-Oncogene Proteins p21(ras)Antineoplastic AgentsDNAImidazolesNylonsProto-Oncogene Proteins p21(ras)colorectal neoplasmsheterograftsimidazolespancreatic carcinomaproto-oncogene proteins p21(ras)pyrroles

Identifiers

PMID36262061
PMCPMC10028039
OpenAlexW4306912580

What OpenQuestion holds

Textfull text, public
LicenceCC BY
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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.