Evidence map›Paper›PMID 22291485›Full record

ArticleClinical pharmacology : advances and applications2010

NMDA receptors are expressed by small-cell lung cancer and are potential targets for effective treatment.

William G North, Guohong Gao, Amy Jensen, Vincent A Memoli, Jinlin Du

Open access · goldAbstract read
In one paragraph

Article in Clinical pharmacology : advances and applications, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
0.5field-weighted citation impact, top 35% 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

30 citing papers in PubMed, 57 citations in OpenAlex.

  1. Molecular mechanisms and therapeutic targets in lung cancer-nerve crosstalk.Chinese medical journal pulmonary and critical care medicine · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. NMDA Receptor and Its Emerging Role in Cancer.International journal of molecular sciences · 2023
    Review
  11. The dark side of synaptic proteins in tumours.British journal of cancer · 2022
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Glutamate in cancers: from metabolism to signaling.Journal of biomedical research · 2019
    Article
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

William G NorthDepartment of Physiology, Dartmouth Medical School, Lebanon, NH, USA. william.g.north@dartmouth.edu
Guohong Gao
Amy Jensen
Vincent A Memoli
Jinlin Du
Dartmouth College · US

Funding

NMDA receptors in the diagnosis and treatment of small cell lung cancer.R21CA122546 · NCI · DARTMOUTH COLLEGE · PI NORTH, WILLIAM G · 2008 to 2009
$360k
NCI NIH HHS R21 CA122546
6 · The paper itself

Abstract

We previously showed that functional N-methyl-D-aspartate (NMDA) receptors are expressed by human neuroblastoma cells. In this study we demonstrate functional NMDAR1 and NMDAR2 receptors are expressed by small-cell lung cancer (SCLC) classical cell lines NCI H146, NCI H345, and DMS 53, by variant cell line NCI H82, and by most SCLC tumors, and that these receptors are important for the growth of human SCLC tumor xenografts in mice. Reverse transcription-polymerase chain reaction demonstrated mRNA for both receptors, with sequences identical to those for human mRNAs, are expressed in all four cell lines, and these generated proteins of the expected sizes 120 and 170 kDa. Cell viability tests showed cell growth was significantly (P < 0.0001) impaired by NMDAR1 antagonists MK-801 and memantine. Ifenprodil and Ro25-6981, NMDAR2B antagonists at the polyamine site, also significantly (P < 0.001) inhibited the growth/survival of these cells. Alternatively, the glycine-binding antagonist, L701, 324, increased viability to 140% and 120% in NCI H345 and NCI H82 cells after 48 hours of incubation. Immunohistochemistry of SCLC tumors with our polyclonal antibodies gave specific positive staining for the NMDAR1 receptor in 8 of 10 tissues examined. Small amounts of these same antibodies significantly reduced the growth of NCI-H345 cells up to 25% (P < 0.001). When NCI H345 cells were grown as tumor xenografts in mice, the growth of these tumors was reduced by 60% (P < 0.001) by treatments with MK-801 over five days. All of these data point to active NMDAR receptors possibly having an important influence on SCLC growth and survival.

Indexed as

inhibitionNMDAreceptorssmall-cell lung cancertreatment

Identifiers

PMID22291485
PMCPMC3262385
OpenAlexW1987854228

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.