Evidence map›Paper›PMID 33115808›Full record

ArticleCancer research2021

Chemotherapy-Induced Upregulation of Small Extracellular Vesicle-Associated PTX3 Accelerates Breast Cancer Metastasis.

Carson A Wills, Xiaoming Liu, Longgui Chen, Yuanjun Zhao, Christopher M Dower, Jeffrey Sundstrom, Hong-Gang Wang

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

51 citing papers in PubMed, 64 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

7 authors at 1 institution in 1 country.

Carson A WillsDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania.ORCID https://orcid.org/0000-0003-0356-3071
Xiaoming LiuDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania.
Longgui ChenDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania.
Yuanjun ZhaoDepartment of Ophthalmology, Penn State College of Medicine, Hershey, Pennsylvania.
Christopher M DowerDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania.
Jeffrey SundstromDepartment of Ophthalmology, Penn State College of Medicine, Hershey, Pennsylvania.
Hong-Gang WangDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania. hwang3@pennstatehealth.psu.edu.ORCID https://orcid.org/0000-0003-0551-0571
Penn State Milton S. Hershey Medical Center · US

Funding

VIRUSES AND CANCERT32CA060395 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI MEYERS, CRAIG M · 1994 to 2021
$4.3M
Non-canonical Caspase-8 Activation on Autophagosomal MembranesR01CA222349 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HONG-GANG WANG · 2018 to 2026
$3.0M
Autophagosome closure by the ESCRT machineryR01GM127954 · NIGMS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI WANG, HONG-GANG · 2018 to 2025
$2.7M
NCI NIH HHS R01 CA222349NCI NIH HHS T32 CA060395
6 · The paper itself

Abstract

Although neoadjuvant chemotherapy is a standard component of breast cancer treatment, recent evidence suggests that chemotherapeutic drugs can promote metastasis through poorly defined mechanisms. Here we utilize xenograft mouse models of triple-negative breast cancer to explore the importance of chemotherapy-induced tumor-derived small extracellular vesicles (sEV) in metastasis. Doxorubicin (DXR) enhanced tumor cell sEV secretion to accelerate pulmonary metastasis by priming the premetastatic niche. Proteomic analysis and CRISPR/Cas9 gene editing identified the inflammatory glycoprotein PTX3 enriched in DXR-elicited sEV as a critical regulator of chemotherapy-induced metastasis. Both genetic inhibition of sEV secretion from primary tumors and pharmacologic inhibition of sEV uptake in secondary organs suppressed metastasis following chemotherapy. Taken together, this research uncovers a mechanism of chemotherapy-mediated metastasis by which drug-induced upregulation of sEV secretion and PTX3 protein cargo primes the premetastatic niche and suggests that inhibition of either sEV uptake in secondary organs or secretion from primary tumor cells may be promising therapeutic strategies to suppress metastasis. SIGNIFICANCE: These findings show that chemotherapy-induced small extracellular vesicles accelerate breast cancer metastasis, and targeted inhibition of tumor-derived vesicles may be a promising therapeutic strategy to improve the efficacy of chemotherapy treatment.

Indexed as

AnimalsAntibiotics, AntineoplasticApoptosisBiomarkers, TumorBreast NeoplasmsCell MovementCell ProliferationC-Reactive ProteinDoxorubicinExtracellular VesiclesFemaleGene Expression Regulation, NeoplasticHumansLiver NeoplasmsLung NeoplasmsMiceAntibiotics, AntineoplasticBiomarkers, TumorC-Reactive ProteinDoxorubicinPentraxinsSerum Amyloid P-Component

Identifiers

PMID33115808
PMCPMC7855036
OpenAlexW3095392829

What OpenQuestion holds

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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.