Evidence map›Paper›PMID 16171515›Full record

ArticleRespiratory research2005

Expression profiling of laser-microdissected intrapulmonary arteries in hypoxia-induced pulmonary hypertension.

Grazyna Kwapiszewska, Jochen Wilhelm, Stephanie Wolff, Isabel Laumanns, Inke R Koenig, Andreas Ziegler, Werner Seeger, Rainer M Bohle, Norbert Weissmann, Ludger Fink

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 115 citations in OpenAlex.

  1. Article
  2. Circulation research · 2022
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Pulmonary hypertension and chronic lung disease: where are we headed?European respiratory review : an official journal of the European Respiratory Society · 2019
    Review
  9. Article
  10. End Stage Takes Center Stage in Pulmonary Arterial Hypertension.American journal of respiratory cell and molecular biology · 2019
    Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Expression profile of mitochondrial voltage-dependent anion channel-1 (VDAC1) influenced genes is associated with pulmonary hypertension.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2017
    Article
  16. Article
  17. Article
  18. Microarray analysis in pulmonary hypertension.The European respiratory journal · 2016
    Review
  19. Review
  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

10 authors at 2 institutions in 1 country.

Grazyna KwapiszewskaDepartment of Pathology, Justus-Liebig-University Giessen, Germany. Grazyna.Kwapiszewska@patho.med.uni-giessen.de
Jochen Wilhelm
Stephanie Wolff
Isabel Laumanns
Inke R Koenig
Andreas Ziegler
Werner Seeger
Rainer M Bohle
Norbert Weissmann
Ludger Fink
University of Giessen · DEZimmer Biomet (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic hypoxia influences gene expression in the lung resulting in pulmonary hypertension and vascular remodelling. For specific investigation of the vascular compartment, laser-microdissection of intrapulmonary arteries was combined with array profiling. METHODS AND

resultsAnalysis was performed on mice subjected to 1, 7 and 21 days of hypoxia (FiO2 = 0.1) using nylon filters (1176 spots). Changes in the expression of 29, 38, and 42 genes were observed at day 1, 7, and 21, respectively. Genes were grouped into 5 different classes based on their time course of response. Gene regulation obtained by array analysis was confirmed by real-time PCR. Additionally, the expression of the growth mediators PDGF-B, TGF-beta, TSP-1, SRF, FGF-2, TIE-2 receptor, and VEGF-R1 were determined by real-time PCR. At day 1, transcription modulators and ion-related proteins were predominantly regulated. However, at day 7 and 21 differential expression of matrix producing and degrading genes was observed, indicating ongoing structural alterations. Among the 21 genes upregulated at day 1, 15 genes were identified carrying potential hypoxia response elements (HREs) for hypoxia-induced transcription factors. Three differentially expressed genes (S100A4, CD36 and FKBP1a) were examined by immunohistochemistry confirming the regulation on protein level. While FKBP1a was restricted to the vessel adventitia, S100A4 and CD36 were localised in the vascular tunica media.

conclusionLaser-microdissection and array profiling has revealed several new genes involved in lung vascular remodelling in response to hypoxia. Immunohistochemistry confirmed regulation of three proteins and specified their localisation in vascular smooth muscle cells and fibroblasts indicating involvement of different cells types in the remodelling process. The approach allows deeper insight into hypoxic regulatory pathways specifically in the vascular compartment of this complex organ.

Indexed as

AnimalsCytokinesGene Expression ProfilingHypertension, PulmonaryHypoxiaLaser TherapyMaleMiceMice, Inbred BALB CMicrodissectionPulmonary ArteryCytokines

Identifiers

PMID16171515
PMCPMC1261535
OpenAlexW2147937572

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.