Evidence map›Paper›PMID 33294440›Full record

ArticleBioMed research international2020

Full-Length TrkB Variant in NSCLC Is Associated with Brain Metastasis.

Mariangela Lombardi, Michela D'Ascanio, Stefania Scarpino, Davide Scozzi, Marco Giordano, Leopoldo Costarelli, Enrico Rathina Raj, Rita Mancini, Giuseppe Cardillo, Vittorio Cardaci and 3 more

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2020. 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
0.3field-weighted citation impact, top 45% 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, 5 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

13 authors at 5 institutions in 2 countries.

Mariangela LombardiDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Michela D'AscanioDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.ORCID https://orcid.org/0000-0002-2141-7409
Stefania ScarpinoDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Davide ScozziDivision of Cardiothoracic Surgery, Department of Surgery, Washington University, St. Louis, Missouri, USA.
Marco GiordanoDepartment of Pathology, San Giovanni Addolorata Hospital, Rome, Italy.
Leopoldo CostarelliDepartment of Pathology, San Giovanni Addolorata Hospital, Rome, Italy.
Enrico Rathina RajDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Rita ManciniDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Giuseppe CardilloUnit of Thoracic Surgery, Carlo San Camillo Forlanini Hospital, Rome, Italy.
Vittorio CardaciUnit of Pulmonary Rehabilitation, IRCCS San Raffaele Pisana, Rome, Italy.
Marta InnammoratoDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Andrea VecchioneDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Alberto RicciDepartment of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy.
Sapienza University of Rome · ITAzienda Ospedaliera San Giovanni Addolorata · ITCarlo Forlanini Hospital · ITIRCCS Ospedale San Raffaele · ITWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite remarkable therapeutic advances have been made in the last few decades, non-small cell lung cancer (NSCLC) is still one of the leading causes of death worldwide. Brain metastases are a common complication of a wide range of human malignancies and in particular NSCLC. Brain-derived neurotrophic factor (BDNF), binding its high-affinity tyrosine kinase B receptor, has been shown to promote cancer progression and metastasis. We hereby investigated the expression of the BDNF and its TrkB receptor in its full-length and truncated isoform T1, in samples from primary adenocarcinomas (ADKs) of the lung and in their metastasis to evaluate if their expression was related to preferential tumor entry into the central nervous system (CNS). By immunohistochemistry, 80% of the ADKs that metastasize to central nervous system expressed TrkB receptor compared to 33% expressing of ADKs without CNS metastasis. Moreover, ADKs with CNS metastasis showed an elevated expression of the full-length TrkB receptor. The TrkB receptor FL/T1 ratio was statistically higher in primary ADKs with brain metastasis compared to ADKs without brain metastasis. Our data indicate that TrkB full-length isoform expression in primary ADK cells may be associated with higher risk to develop brain metastasis. Therefore, TrkB receptor may possess prognostic and therapeutic implications in lung ADK.

Indexed as

AgedBrain-Derived Neurotrophic FactorBrain NeoplasmsCarcinoma, Non-Small-Cell LungCell AdhesionCell Line, TumorFemaleGene Expression Regulation, NeoplasticHumansLung NeoplasmsMaleMiddle AgedMutationReceptor, trkBSpheroids, CellularBrain-Derived Neurotrophic FactorReceptor, trkB

Identifiers

PMID33294440
PMCPMC7688363
OpenAlexW3098341468

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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.