Evidence map›Paper›PMID 38509504›Full record

ArticleBMC cancer2024

Transgelin-2, a novel cancer stem cell-related biomarker, is a diagnostic and therapeutic target for biliary tract cancer.

Jung Hyun Jo, Soo Been Park, Joowon Chung, Taeyun Oh, Hee Seung Lee, Moon Jae Chung, Jeong Youp Park, Seungmin Bang, Seung Woo Park, Dawoon E Jung and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.4field-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

5 citing papers in PubMed, 6 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

11 authors at 2 institutions in 1 country.

Jung Hyun Jo *Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Soo Been Park *Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Joowon ChungDepartment of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea.
Taeyun OhCowell Biodigm Co., Ltd., Seoul, Korea.
Hee Seung LeeDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Moon Jae ChungDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Jeong Youp ParkDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Seungmin BangDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Seung Woo ParkDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Dawoon E JungDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. estherjung@yuhs.ac.
Si Young SongDivision of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. sysong@yuhs.ac.
Yonsei University · KREulji University · KR

Funding

Korea Health Industry Development Institute HI14C1324National Research Foundation of Korea 2021R1A2C1006234National Research Foundation of Korea 2021R1A2C1008898Yonsei University College of Medicine 6-2020-0138Yonsei University College of Medicine 6-2023-0118
6 · The paper itself

Abstract

backgroundBiliary tract cancer (BTC) is a relatively rare but aggressive gastrointestinal cancer with a high mortality rate. Cancer stem cell (CSC) populations play crucial roles in tumor biology and are responsible for the low response to anti-cancer treatment and the high recurrence rate. This study investigated the role of Transgelin-2 (TAGLN2), overexpressed in CSC in BTC cells, and analyzed its expression in patient tissues and serum to identify potential new targets for BTC.

methodsTAGLN2 expression was suppressed by small-interfering or short hairpin RNAs, and its effects on tumor biology were assessed in several BTC cell lines. Furthermore, the effects of TAGLN2 silencing on gemcitabine-resistant BTC cells, differentially expressed genes, proteins, and sensitivity to therapeutics or radiation were assessed. TAGLN2 expression was also assessed using western blotting and immunohistochemistry in samples obtained from patients with BTC to validate its clinical application.

resultsSuppression of TAGLN2 in BTC cell lines decreased cell proliferation, migration, invasion, and tumor size, in addition to a reduction in CSC features, including clonogenicity, radioresistance, and chemoresistance. TAGLN2 was highly expressed in BTC tissues, especially in cancer-associated fibroblasts in the stroma. Patients with a low stromal immunohistochemical index had prolonged disease-free survival compared to those with a high stromal immunohistochemical index (11.5 vs. 7.4 months, P = 0.013). TAGLN2 expression was higher in the plasma of patients with BTC than that in those with benign diseases. TAGLN2 had a higher area under the curve (0.901) than CA19-9, a validated tumor biomarker (0.799; P < 0.001).

conclusionTAGLN2 plays a critical role in promoting BTC cell growth and motility and is involved in regulating BTC stemness. Silencing TAGLN2 expression enhanced cell sensitivity to radiation and chemotherapeutic drugs. The expression of TAGLN2 in patient tissue and plasma suggests its potential to serve as a secretory biomarker for BTC. Overall, targeting TAGLN2 could be an appropriate therapeutic strategy against advanced cancer following chemotherapy failure.

Indexed as

Biliary Tract NeoplasmsMicrofilament ProteinsBiomarkers, TumorCell Line, TumorHumansMuscle ProteinsBiomarkers, TumorMicrofilament ProteinsMuscle ProteinstransgelinBiliary tract cancerCancer-associated fibroblastsCancer stem cellTherapy-resistanceTransgelin-2

Identifiers

PMID38509504
PMCPMC10953140
OpenAlexW4393006210

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.