Evidence map›Paper›PMID 33446896›Full record

ArticleScientific reports2021

CD117/c-kit defines a prostate CSC-like subpopulation driving progression and TKI resistance.

Koran S Harris, Lihong Shi, Brittni M Foster, Mary E Mobley, Phyllis L Elliott, Conner J Song, Kounosuke Watabe, Carl D Langefeld, Bethany A Kerr

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.6field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  11. Prostate cancer stem cells and their targeted therapies.Frontiers in cell and developmental biology · 2024
    Review
  12. Prostate Cancer Stem Cells: Biology and Treatment Implications.International journal of molecular sciences · 2023
    Review
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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

9 authors at 2 institutions in 1 country.

Koran S HarrisDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Lihong ShiDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Brittni M FosterDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Mary E MobleyDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Phyllis L ElliottDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Conner J SongDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Kounosuke WatabeDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
Carl D LangefeldWake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA.
Bethany A KerrDepartment of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA. bkerr@wakehealth.edu.ORCID 0000-0002-2995-7549
Wake Forest University · USAtrium Health Wake Forest Baptist · US

Funding

Tumor Tissue CoreP30CA012197 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Ruben A. Mesa · 1985 to 2026
$55.4M
CD117 Signaling as a Mechanism of Prostate Cancer MetastasisR00CA175291 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KERR, BETHANY AMBER · 2016 to 2018
$722k
NCI NIH HHS P30 CA012197NCI NIH HHS R00 CA175291
6 · The paper itself

Abstract

Cancer stem-like cells (CSCs) are associated with cancer progression, metastasis, and recurrence, and may also represent a subset of circulating tumor cells (CTCs). In our prior study, CTCs in advanced prostate cancer patients were found to express CD117/c-kit in a liquid biopsy. Whether CD117 expression played an active or passive role in the aggressiveness and migration of these CTCs remained an open question. In this study, we show that CD117 expression in prostate cancer patients is associated with decreased overall and progression-free survival and that activation and phosphorylation of CD117 increases in prostate cancer patients with higher Gleason grades. To determine how CD117 expression and activation by its ligand stem cell factor (SCF, kit ligand, steel factor) alter prostate cancer aggressiveness, we used C4-2 and PC3-mm human prostate cancer cells, which contain a CD117+ subpopulation. We demonstrate that CD117+ cells display increased proliferation and migration. In prostaspheres, CD117 expression enhances sphere formation. In both 2D and 3D cultures, stemness marker gene expression is higher in CD117+ cells. Using xenograft limiting dilution assays and serial tumor initiation assays, we show that CD117+ cells represent a CSC population. Combined, these data indicate that CD117 expression potentially promotes tumor initiation and metastasis. Further, in cell lines, CD117 activation by SCF promotes faster proliferation and invasiveness, while blocking CD117 activation with tyrosine kinase inhibitors (TKIs) decreased progression in a context-dependent manner. We demonstrate that CD117 expression and activation drives prostate cancer aggressiveness through the CSC phenotype and TKI resistance.

Indexed as

Biomarkers, TumorCell Line, TumorCell ProliferationDatabases, GeneticDisease ProgressionHumansMaleNeoplasm GradingNeoplasm Recurrence, LocalNeoplastic Stem CellsProstateProstatic NeoplasmsProtein-Tyrosine KinasesProto-Oncogene Proteins c-kitStem Cell FactorBiomarkers, TumorKIT protein, humanProtein-Tyrosine KinasesProto-Oncogene Proteins c-kitStem Cell Factor

Identifiers

PMID33446896
PMCPMC7809150
OpenAlexW3121501848

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.