Evidence map›Paper›PMID 26279756›Full record

ArticleAmerican journal of translational research2015

Clinical significance of coexpression of L-type amino acid transporter 1 (LAT1) and ASC amino acid transporter 2 (ASCT2) in lung adenocarcinoma.

Tomohiro Yazawa, Kimihiro Shimizu, Kyoichi Kaira, Toshiteru Nagashima, Yoichi Ohtaki, Jun Atsumi, Kai Obayashi, Shushi Nagamori, Yoshikatsu Kanai, Tetsunari Oyama and 1 more

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In one paragraph

Article in American journal of translational research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
2.1field-weighted citation impact, top 14% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

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  18. The L-Type Amino Acid Transporter LAT1-An Emerging Target in Cancer.International journal of molecular sciences · 2019
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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.

Tomohiro YazawaDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Kimihiro ShimizuDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Kyoichi KairaDepartment of Oncology Clinical Development, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Toshiteru NagashimaDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Yoichi OhtakiDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Jun AtsumiDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Kai ObayashiDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Shushi NagamoriDivision of Bio-System Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University Osaka, Japan.
Yoshikatsu KanaiDivision of Bio-System Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University Osaka, Japan.
Tetsunari OyamaDepartment of Diagnostic Pathology, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Izumi TakeyoshiDepartment of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine Maebashi, Gunma, Japan.
Gunma University · JPOsaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundL-type amino acid transporter 1 (LAT1) and ASC amino acid transporter 2 (ASCT2) have been associated with tumor growth and progression. However, the clinical significance of LAT1 and ASCT2 coexpression in the prognosis of patients with lung adenocarcinoma remains unclear.

methodsIn total, 222 patients with surgically resected lung adenocarcinoma were investigated retrospectively. Tumor sections were stained immunohistochemically for LAT1, ASCT2, CD98, phosphorylated mammalian target-of-rapamycin (p-mTOR), and Ki-67, and microvessel density (MVD) was determined by staining for CD34. Epidermal growth factor receptor (EGFR) mutation status was also examined.

resultsLAT1 and ASCT2 were positively expressed in 22% and 40% of cases, respectively. Coexpression of LAT1 and ASCT2 was observed in 12% of cases and was associated significantly with disease stage, lymphatic permeation, vascular invasion, CD98, Ki-67, and p-mTOR. Only LAT1 and ASCT2 coexpression indicated a poor prognosis for lung adenocarcinoma. Furthermore, this characteristic was recognized in early-stage patients, especially those who had wild-type, rather than mutated, EGFR. Multivariate analysis confirmed that the coexpression of LAT1 and ASCT2 was an independent factor for predicting poor outcome.

conclusionsLAT1 and ASCT2 coexpression is an independent prognostic factor for patients with lung adenocarcinoma, especially during the early stages, expressing wild-type EGFR.

Indexed as

ASCT2coexpressionLAT1Lung adenocarcinomaprognostic factorwild-type EGFR

Identifiers

PMID26279756
PMCPMC4532745
OpenAlexW2345555443

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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.