Evidence map›Paper›PMID 34209215›Full record

ArticleInternational journal of molecular sciences2021

Differences in the Relative Abundance of ProBDNF and Mature BDNF in A549 and H1299 Human Lung Cancer Cell Media.

Sadaf Dorandish, Sarah Atali, Ravel Ray, Hind Al Khashali, Kai-Ling Coleman, Jeffrey Guthrie, Deborah Heyl, Hedeel Guy Evans

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Empagliflozin Mitigates PTZ-Induced Seizures in Rats: Modulating Npas4 and CREB-BDNF Signaling Pathway.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

8 authors at 1 institution in 1 country.

Sadaf DorandishChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Sarah AtaliChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Ravel RayChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Hind Al KhashaliChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Kai-Ling ColemanChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Jeffrey GuthrieChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Deborah HeylChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Hedeel Guy EvansChemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA.ORCID 0000-0002-7970-9084
Eastern Michigan University · US

Funding

Probing the Role of Insulin-Like Growth Factor-Binding Protein 3 and Humanin in Regulating Hyaluronan FunctionR15GM131222 · NIGMS · EASTERN MICHIGAN UNIVERSITY · PI GUY EVANS, HEDEEL I. · 2019 to 2025
$1.5M
NIGMS NIH HHS R15 GM131222NIH HHS R15GM131222 to H.G.E.
6 · The paper itself

Abstract

Brain-derived neurotrophic factor (BDNF), a member of the neurotrophin family, has been linked to several human malignancies and shown to promote tumorigenesis. The purpose of this study was to explore the relative abundance of pro-brain-derived neurotrophic factor (proBDNF) and mature BDNF (mBDNF) in A549 (p53 wild-type) and H1299 (p53-null) lung cancer cell media. Higher levels of proBDNF were detected in the media of A549 cells than in H1299 cell media. Using inhibitors, we found that the levels of proBDNF and mBDNF in the media are likely regulated by PI3K, AKT, and NFκB. However, the largest change in these levels resulted from MMP2/9 inhibition. Blocking p53 function in A549 cells resulted in increased mBDNF and decreased proBDNF, suggesting a role for p53 in regulating these levels. The ratio of proBDNF/mBDNF was not affected by MMP2 knockdown but increased in the media of both cell lines upon knockdown of MMP9. Downregulation of either MMP2 or MMP9 by siRNA showed that MMP9 siRNA treatment of either A549 or H1299 cells resulted in decreased cell viability and increased apoptosis, an effect diminished upon the same treatment with proBDNF immunodepleted media, suggesting that MMP9 regulates the cytotoxic effects induced by proBDNF in lung cancer cells.

Indexed as

Up-RegulationA549 CellsBrain-Derived Neurotrophic FactorCell Line, TumorCulture MediaGene Expression Regulation, NeoplasticHumansLung NeoplasmsMatrix Metalloproteinase 2Matrix Metalloproteinase 9MutationNF-kappa BPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktSignal TransductionTumor Suppressor Protein p53BDNF protein, humanBrain-Derived Neurotrophic FactorCulture MediaMatrix Metalloproteinase 2Matrix Metalloproteinase 9MMP2 protein, humanMMP9 protein, humanNF-kappa BPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktTP53 protein, humanTumor Suppressor Protein p53AKTbrain-derived neurotrophic factorlung cancermatrix metalloproteinaseNFκBp53PI3K

Identifiers

PMID34209215
PMCPMC8267635
OpenAlexW3175746810

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.