Evidence map›Paper›PMID 28522569›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2017

Brain-derived neurotrophic factor and airway fibrosis in asthma.

Michelle R Freeman, Venkatachalem Sathish, Logan Manlove, Shengyu Wang, Rodney D Britt, Michael A Thompson, Christina M Pabelick, Y S Prakash

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

35 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Aging, brain-derived neurotrophic factor, and allergen-induced pulmonary responses in mice.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  7. Article
  8. Functional role of glial-derived neurotrophic factor in a mixed allergen murine model of asthma.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  9. Article
  10. Review
  11. Cellular senescence is increased in airway smooth muscle cells of elderly persons with asthma.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Effect of BDNF on airway inflammation in a rat model of COPD.Experimental and therapeutic medicine · 2021
    Article
  17. Article
  18. Review
  19. Neurotrophin Regulation and Signaling in Airway Smooth Muscle.Advances in experimental medicine and biology · 2021
    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

8 authors at 1 institution in 2 countries.

Michelle R FreemanDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Venkatachalem SathishDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Logan ManloveDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Shengyu WangDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Rodney D BrittDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Michael A ThompsonDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Christina M PabelickDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota.
Y S PrakashDepartment of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota; prakash.ys@mayo.edu.ORCID 0000-0002-2968-224X
Mayo Clinic · US

Funding

NEURAL REGULATION OF AIRWAYS DURING POSTNATAL MATURATIONR01HL056470 · NHLBI · MAYO CLINIC ROCHESTER · PI PRAKASH, Y. S. · 1996 to 2025
$10.5M
Neurotrophins in the LungR01HL088029 · NHLBI · MAYO CLINIC ROCHESTER · PI PRAKASH, Y. S. · 2009 to 2022
$5.9M
Estrogen Receptor Signaling in Airway InflammationR01HL123494 · NHLBI · NORTH DAKOTA STATE UNIVERSITY · PI VENKATACHALEM, SATHISH · 2015 to 2019
$1.9M
NHLBI NIH HHS R01 HL056470NHLBI NIH HHS R01 HL088029NHLBI NIH HHS R01 HL123494
6 · The paper itself

Abstract

Airway remodeling in asthma driven by inflammation involves proliferation of epithelial cells and airway smooth muscle (ASM), as well as enhanced extracellular matrix (ECM) generation and deposition, i.e., fibrosis. Accordingly, understanding profibrotic mechanisms is important for developing novel therapeutic strategies in asthma. Recent studies, including our own, have suggested a role for locally produced growth factors such as brain-derived neurotrophic factor (BDNF) in mediating and modulating inflammation effects. In this study, we explored the profibrotic influence of BDNF in the context of asthma by examining expression, activity, and deposition of ECM proteins in primary ASM cells isolated from asthmatic vs. nonasthmatic patients. Basal BDNF expression and secretion, and levels of the high-affinity BDNF receptor TrkB, were higher in asthmatic ASM. Exogenous BDNF significantly increased ECM production and deposition, especially of collagen-1 and collagen-3 (less so fibronectin) and the activity of matrix metalloproteinases (MMP-2, MMP-9). Exposure to the proinflammatory cytokine TNFα significantly increased BDNF secretion, particularly in asthmatic ASM, whereas no significant changes were observed with IL-13. Chelation of BDNF using TrkB-Fc reversed TNFα-induced increase in ECM deposition. Conditioned media from asthmatic ASM enhanced ECM generation in nonasthmatic ASM, which was blunted by BDNF chelation. Inflammation-induced changes in MMP-2, MMP-9, and tissue inhibitor metalloproteinases (TIMP-1, TIMP-2) were reversed in the presence of TrkB-Fc. These novel data suggest ASM as an inflammation-sensitive source of BDNF within human airways, with autocrine effects on fibrosis relevant to asthma.

Indexed as

Airway RemodelingAsthmaBrain-Derived Neurotrophic FactorCollagen Type ICollagen Type IIICytokinesFibrosisHumansInflammationInterleukin-13Matrix Metalloproteinase 2Matrix Metalloproteinase 9Muscle, SmoothMyocytes, Smooth MuscleRespiratory SystemTumor Necrosis Factor-alphaBDNF protein, humanBrain-Derived Neurotrophic FactorCollagen Type ICollagen Type IIICytokinesInterleukin-13Matrix Metalloproteinase 2Matrix Metalloproteinase 9Tumor Necrosis Factor-alphaairway smooth musclecollagenextracellular matrixneurotrophintropomyosin-related kinase

Identifiers

PMID28522569
PMCPMC5582935
OpenAlexW2615435554

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.