Evidence map›Paper›PMID 22729036›Full record

ArticleJournal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer2012

High expression of folate receptor alpha in lung cancer correlates with adenocarcinoma histology and EGFR [corrected] mutation.

Maria Ines Nunez, Carmen Behrens, Denise M Woods, Heather Lin, Milind Suraokar, Humam Kadara, Wayne Hofstetter, Neda Kalhor, J Jack Lee, Wilbur Franklin and 2 more

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

86 citing papers in PubMed, 158 citations in OpenAlex.

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  11. Fuel for thought: targeting metabolism in lung cancer.Translational lung cancer research · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Folate Receptor Alpha-A Novel Approach to Cancer Therapy.International journal of molecular sciences · 2024
    Review
  16. Impact of genetic variants in the solute carrier (Cancer drug resistance (Alhambra, Calif.) · 2024
    Review
  17. Article
  18. Review
  19. Article
  20. Article

26 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Maria Ines NunezDepartment of Pathology, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
Carmen Behrens
Denise M Woods
Heather Lin
Milind Suraokar
Humam Kadara
Wayne Hofstetter
Neda Kalhor
J Jack Lee
Wilbur Franklin
David J Stewart
Ignacio I Wistuba
The University of Texas MD Anderson Cancer Center · USUniversity of Colorado Denver · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
UNIVERSITY OF TEXAS--SPORE IN LUNG CANCERP50CA070907 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI GIBBONS, DON LYNN · 1996 to 2024
$57.4M
NCI NIH HHS CA-16672NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA070907NCI NIH HHS P50CA70907
6 · The paper itself

Abstract

introductionFolate receptor alpha (FRα) and reduced folate carrier-1 (RFC1) regulate uptake of folate molecules inside the cell. FRα is a potential biomarker of tumors response to antifolate chemotherapy, and a target for therapies using humanized monocloncal antibody. Information on the protein expression of these receptors in non-small-cell lung carcinoma (NSCLC) is limited. MATERIAL AND

methodsExpressions of FRα and RFC1 were examined by immunohistochemistry (IHC) in 320 surgically resected NSCLC (202 adenocarcinomas and 118 squamous cell carcinomas) tissue specimens and correlated with patients' clinico-pathologic characteristics. Folate receptor α gene (FOLR1) mRNA expression was examined using publicly available microarray datasets. FRα expression was correlated with thymidylate synthase and p53 expression in NSCLCs, and with epidermal growth factor receptor (EGFR) and V-Ki-ras2 Kirsten rat sarcoma viral (KRAS) gene mutations in adenocarcinomas.

resultsNSCLC overexpressed FRα and RFC1. In a multivariate analysis, lung adenocarcinomas were more likely to express FRα in the cytoplasm (OR = 4.39; p < 0.0001) and membrane (OR = 5.34; p < 0.0001) of malignant cells than squamous cell carcinomas. Tumors from never-smokers were more likely to express cytoplasmic (OR = 3.35; p<0.03) and membrane (OR = 3.60; p=0.0005) FRα than those from smokers. In adenocarcinoma, EGFR mutations correlated with higher expression of membrane FRα and FOLR1 gene expressions. High levels of FRα expression was detected in 42 NSCLC advanced metastatic tumor tissues.

conclusionsFRα and RFC1 proteins are overexpressed in NSCLC tumor tissues. The high levels of FRα in lung adenocarcinomas may be associated to these tumors' better responses to antifolate chemotherapy and represents a potential novel target for this tumor type.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellErbB ReceptorsFemaleFolate Receptor 1HumansImmunoenzyme TechniquesLung NeoplasmsLymphatic MetastasisMaleMiddle AgedMutationEGFR protein, humanErbB ReceptorsFolate Receptor 1KRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsReplication Protein CRFC1 protein, humanTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID22729036
PMCPMC3383601
OpenAlexW2043179683

What OpenQuestion holds

Textmetadata
LicenceTDM
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.