Evidence map›Paper›PMID 36176383›Full record

ArticleFrontiers in oncology2022

Alpha-2-macroglobulin as a novel diagnostic biomarker for human bladder cancer in urinary extracellular vesicles.

Jisu Lee, Hyun Sik Park, Seung Ro Han, Yun Hee Kang, Ji Young Mun, Dong Wook Shin, Hyun-Woo Oh, Yoon-Kyoung Cho, Myung-Shin Lee, Jinsung Park

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
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  3. Intracellular Signaling Regulated by Activated αInternational journal of molecular sciences · 2026
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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

10 authors at 6 institutions in 1 country.

Jisu LeeDepartment of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea.
Hyun Sik ParkDepartment of Urology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, South Korea.
Seung Ro HanDepartment of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea.
Yun Hee KangDepartment of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea.
Ji Young MunNeural Circuit Research Group, Korea Brain Research Institute, Daegu, South Korea.
Dong Wook ShinDepartment of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Hyun-Woo OhCore Facility Management Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.
Yoon-Kyoung ChoDepartment of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea.
Myung-Shin LeeDepartment of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea.
Jinsung ParkDepartment of Urology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, South Korea.
Eulji University · KREulji University Hospital · KRInstitute for Basic Science · KRKorea Brain Research Institute · KRKorea Research Institute of Bioscience and Biotechnology · KRSamsung Medical Center · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extracellular vesicles (EVs) derived from urine are promising tools for the diagnosis of urogenital cancers. Urinary EVs (uEVs) are considered potential biomarkers for bladder cancer (BC) because urine is in direct contact with the BC tumor microenvironment and thus reflects the current state of the disease. However, challenges associated with the effective isolation and analysis of uEVs complicate the clinical detection of uEV-associated protein biomarkers. Herein, we identified uEV-derived alpha-2-macroglobulin (a2M) as a novel diagnostic biomarker for BC through comparative analysis of uEVs obtained from patients with BC pre- and post-operation using an antibody array. Furthermore, enzyme-linked immunosorbent assay of uEVs isolated from patients with BC (n=60) and non-cancer control subjects (n=23) validated the significant upregulation of a2M expression in patient uEVs (p<0.0001). There was no significant difference in whole urine a2M levels between patients with BC and controls (p=0.317). We observed that compared to classical differential centrifugation, ExoDisc, a centrifugal microfluidic tangential flow filtration device, was a significantly more effective separation method for uEV protein analysis. We expect that our approach for EV analysis will provide an efficient route for the identification of clinically meaningful uEV-based biomarkers for cancer diagnosis.

Indexed as

alpha-2-macroglobulinbiomarkerbladder cancerextracellular vesicles (EVs)urine

Identifiers

PMID36176383
PMCPMC9513419
OpenAlexW4296588621

What OpenQuestion holds

Textmetadata
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.