Evidence map›Paper›PMID 34874457›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2022

Impact of FGF1 on human periodontal ligament fibroblast growth, osteogenic differentiation and inflammatory reaction in vitro.

Isabel Knaup, Judit Symmank, Asisa Bastian, Sabine Neuss, Thomas Pufe, Collin Jacobs, Michael Wolf

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. [Advances on efficacy and mechanisms of acid fibroblast growth factor for promoting injured tissue repair].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  2. Article
  3. Review
  4. Review
  5. 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

7 authors at 2 institutions in 1 country.

Isabel KnaupDepartment of Orthodontics, RWTH Aachen University Hospital, Pauwelsstr. 30, 52074, Aachen, Germany. iknaup@ukaachen.de.
Judit SymmankDepartment of Orthodontics, Jena University Hospital, Jena, Germany.
Asisa BastianDepartment of Orthodontics, RWTH Aachen University Hospital, Pauwelsstr. 30, 52074, Aachen, Germany.
Sabine NeussHelmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Aachen, Germany.
Thomas PufeDepartment of Anatomy and Cell Biology, RWTH Aachen University Hospital, Wendlingweg 2, 52074, Aachen, Germany.
Collin JacobsDepartment of Orthodontics, Jena University Hospital, Jena, Germany.
Michael WolfDepartment of Orthodontics, RWTH Aachen University Hospital, Pauwelsstr. 30, 52074, Aachen, Germany.
RWTH Aachen University · DEJena University Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate in vitro the impact of fibroblast growth factor 1 (FGF1) in comparison to ascorbic acid (AscA) on human periodontal ligament fibroblast (HPdLF) growth, their osteogenic differentiation, and modulation of their inflammatory reaction to mechanical stress.

methodsThe influence of different concentrations of FGF1 (12.5-200 ng/mL) on growth and proliferation of HPdLF cells was analyzed over 20 days by counting cell numbers and the percentage of Ki67-positive cells. Quantitative expression analysis of genes encoding the osteogenic markers alkaline phosphatase (ALPL), Runt-related transcription factor 2 (RUNX2), osteocalcin (OCN), and osteopontin (OSP), as well as the fibroblast markers vimentin (VIM) and fibroblast-specific protein 1 (FSP1), was performed after 2 and 20 days of cultivation. Metabolic activity was determined by MTT assay. For comparison with AscA, 50 ng/mL FGF1 was used for stimulation for 2 and 20 days. Cell number, percentage of Ki67-positive cells, and expression of osteoblast- and fibroblast-specific genes were examined. Alkaline phosphatase activity was visualized by NBT/BCIP and calcium deposits were stained with alizarin red. Cytokine (IL‑6, IL‑8, COX2/PGE2) expression and secretion were analyzed by qPCR and ELISA in 6 h mechanically compressed HPdLF cultured for 2 days with FGF1 or ascorbic acid.

resultsHigher concentrations of FGF1 promoted cell proliferation upon short-term stimulation, whereas prolonged treatment induced the expression of osteogenic markers even with low concentrations. AscA promotes cell growth more markedly than FGF1 in short-term cultures, whereas FGF1 induced osteogenic cell fate more strongly in long-term culture. Both factors induced an increased inflammatory response of HPdLF to mechanical compression.

conclusionOur data suggest that FGF1 promotes an osteogenic phenotype of HPdLF and limits inflammatory response to mechanical forces compared to AscA.

Indexed as

Core Binding Factor Alpha 1 SubunitPeriodontal LigamentAlkaline PhosphataseAscorbic AcidCalciumCells, CulturedCyclooxygenase 2DinoprostoneFibroblast Growth Factor 1FibroblastsHumansInterleukin-6Interleukin-8Ki-67 AntigenOsteocalcinOsteogenesisAlkaline PhosphataseAscorbic AcidCalciumCore Binding Factor Alpha 1 SubunitCyclooxygenase 2DinoprostoneFibroblast Growth Factor 1Interleukin-6Interleukin-8Ki-67 AntigenOsteocalcinOsteopontinS100 Calcium-Binding Protein A4VimentinAscorbic acidFibroblast growth factor 1Mechanical stressOrthodontic tooth movementPdL fibroblasts

Identifiers

PMID34874457
OpenAlexW4200161204

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.