Evidence map›Paper›PMID 26552750›Full record

ArticleBMC cancer2015

Chemotherapeutic agents attenuate CXCL12-mediated migration of colon cancer cells by selecting for CXCR4-negative cells and increasing peptidase CD26.

Murray J Cutler, Erica L Lowthers, Cynthia L Richard, Dagmar M Hajducek, Paul A Spagnuolo, Jonathan Blay

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

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  16. microRNA-9 functions as a tumor suppressor in colorectal cancer by targeting CXCR4.International journal of clinical and experimental pathology · 2018
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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

6 authors at 2 institutions in 1 country.

Murray J CutlerSchool of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON, N2L 3G1, Canada. murray.cutler.jr@gmail.com.
Erica L LowthersDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada. lowthers@simip.com.
Cynthia L RichardSchool of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON, N2L 3G1, Canada. c25richard@uwaterloo.ca.
Dagmar M HajducekDepartment of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, Canada. hajducek@gmail.com.
Paul A SpagnuoloSchool of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON, N2L 3G1, Canada. paul.spagnuolo@uwaterloo.ca.
Jonathan BlaySchool of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON, N2L 3G1, Canada. jonathan.blay@uwaterloo.ca.
University of Waterloo · CADalhousie University · CA

Funding

Canadian Institutes of Health Research MOP-84361
6 · The paper itself

Abstract

backgroundRecurrence of colorectal cancer (CRC) may arise due to the persistence of drug-resistant and cancer-initiating cells that survive exposure to chemotherapy. Proteins responsible for this recurrence include the chemokine receptor CXCR4, which is known to enable CRC metastasis, as well as the cancer-initiating cell marker and peptidase CD26, which terminates activity of its chemokine CXCL12.

methodsWe evaluated the expression and function of CXCR4 and CD26 in colon cancer cell lines and xenografts following treatment with common chemotherapies using radioligand binding, flow cytometry, immunofluorescence, and enzymatic assays.

results5-Fluorouracil, oxaliplatin and SN-38 (the active metabolite of irinotecan), as well as cisplatin, methotrexate and vinblastine, each caused decreases in cell-surface CXCR4 and concomitant increases in CD26 on HT-29, T84, HRT-18, SW480 and SW620 CRC cell lines. Flow cytometry indicated that the decline in CXCR4 was associated with a significant loss of CXCR4+/CD26- cells. Elevations in CD26 were paralleled by increases in both the intrinsic dipeptidyl peptidase activity of CD26 as well as its capacity to bind extracellular adenosine deaminase. Orthotopic HT-29 xenografts treated with standard CRC chemotherapeutics 5-fluorouracil, irinotecan, or oxaliplatin showed dramatic increases in CD26 compared to untreated tumors. Consistent with the loss of CXCR4 and gain in CD26, migratory responses to exogenous CXCL12 were eliminated in cells pretreated with cytotoxic agents, although cells retained basal motility. Analysis of cancer-initiating cell CD44 and CD133 subsets revealed drug-dependent responses of CD26/CD44/CD133 populations, suggesting that the benefits of combining standard chemotherapies 5-fluoruracil and oxaliplatin may be derived from their complementary elimination of cell populations.

conclusionOur results indicate that conventional anticancer agents may act to inhibit chemokine-mediated migration through eradication of CXCR4+ cells and attenuation of chemokine gradients through elevation of CD26 activity.

Indexed as

AnimalsCamptothecinCarcinogenesisCell LineageCell MovementChemokine CXCL12Colonic NeoplasmsDipeptidyl Peptidase 4FluorouracilGene Expression Regulation, NeoplasticHT29 CellsHumansHyaluronan ReceptorsIrinotecanMiceNeoplasm MetastasisCamptothecinChemokine CXCL12CXCL12 protein, humanCXCR4 protein, humanDipeptidyl Peptidase 4DPP4 protein, humanFluorouracilHyaluronan ReceptorsIrinotecanReceptors, CXCR4

Identifiers

PMID26552750
PMCPMC4640216
OpenAlexW2150524060

What OpenQuestion 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 OpenQuestion graph.