Evidence map›Paper›PMID 36535941›Full record

ArticleNPJ genomic medicine2022

Genomic heterogeneity in pancreatic cancer organoids and its stability with culture.

Olalekan H Usman, Liting Zhang, Gengqiang Xie, Hemant M Kocher, Chang-Il Hwang, Yue Julia Wang, Xian Mallory, Jerome Irianto

Open access · goldAbstract read
In one paragraph

Article in NPJ genomic medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 7% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 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

8 authors at 3 institutions in 2 countries.

Olalekan H UsmanDepartment of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, 32306, USA.
Liting ZhangDepartment of Computer Science, Florida State University, Tallahassee, FL, 32306, USA.
Gengqiang XieDepartment of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, 32306, USA.
Hemant M KocherBarts Cancer Institute, Queen Mary, John Vane Science Centre, University of London, Charterhouse Square, London, EC1M 6BQ, UK.ORCID http://orcid.org/0000-0001-6771-1905
Chang-Il HwangDepartment of Microbiology and Molecular Genetics, University of California Davis, Davis, CA, 95616, USA.ORCID http://orcid.org/0000-0002-5710-7672
Yue Julia WangDepartment of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, 32306, USA.
Xian MalloryDepartment of Computer Science, Florida State University, Tallahassee, FL, 32306, USA.
Jerome IriantoDepartment of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, 32306, USA. jerome.irianto@med.fsu.edu.ORCID http://orcid.org/0000-0002-4804-7225
Florida State University · USQueen Mary University of London · GBUniversity of California, Davis · US

Funding

Chromatin mobility in response to DNA damageU01CA214282 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI BONIN, KEITH D, PARDEE, TIMOTHY SEBASTIAN · 2018 to 2022
$3.0M
Florida Department of Health 21B11Florida State University (FSU) StartupNCI NIH HHS U01 CA214282U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI) 5U01 CA214282
6 · The paper itself

Abstract

The establishment of patient-derived pancreatic cancer organoid culture in recent years creates an exciting opportunity for researchers to perform a wide range of in vitro studies on a model that closely recapitulates the tumor. One of the outstanding question in pancreatic cancer biology is the causes and consequences of genomic heterogeneity observed in the disease. However, to use pancreatic cancer organoids as a model to study genomic variations, we need to first understand the degree of genomic heterogeneity and its stability within organoids. Here, we used single-cell whole-genome sequencing to investigate the genomic heterogeneity of two independent pancreatic cancer organoid lines, as well as their genomic stability with extended culture. Clonal populations with similar copy number profiles were observed within the organoids, and the proportion of these clones was shifted with extended culture, suggesting the growth advantage of some clones. However, sub-clonal genomic heterogeneity was also observed within each clonal population, indicating the genomic instability of the pancreatic cancer cells themselves. Furthermore, our transcriptomic analysis also revealed a positive correlation between copy number alterations and gene expression regulation, suggesting the "gene dosage" effect of these copy number alterations that translates to gene expression regulation.

Identifiers

PMID36535941
PMCPMC9763422
OpenAlexW4312052647

What OpenQuestion holds

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Registered trials

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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.