Evidence map›Paper›PMID 24979372›Full record

ArticlePloS one2014

Therapeutic effect of TSG-6 engineered iPSC-derived MSCs on experimental periodontitis in rats: a pilot study.

Heng Yang, Raydolfo M Aprecio, Xiaodong Zhou, Qi Wang, Wu Zhang, Yi Ding, Yiming Li

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 74 citations in OpenAlex.

  1. Periodontal Cell Therapy: A Systematic Review and Meta-analysis.Advances in experimental medicine and biology · 2022
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. 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

7 authors at 3 institutions in 2 countries.

Heng YangState Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.
Raydolfo M AprecioCenter for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, United States of America.
Xiaodong ZhouCenter for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, United States of America.
Qi WangState Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.
Wu ZhangCenter for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, United States of America.
Yi DingDepartment of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Yiming LiCenter for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, United States of America.
Loma Linda University · USSichuan University · CNWest China Hospital of Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe derived mesenchymal stem cells (MSCs) from rat induced pluripotent stem cells (iPSCs) and transduced them with tumor necrosis factor alpha-stimulated gene-6 (TSG-6), to test whether TSG-6 overexpression would boost the therapeutic effects of iPSC-derived MSCs in experimental periodontitis.

methodsA total of 30 female Sprague-Dawley (SD) rats were randomly divided into four groups: healthy control group (Group-N, n = 5), untreated periodontitis group (Group-P, n = 5), iPS-MSCs-treated and iPSC-MSCs/TSG-6-treated periodontitis groups (Group-P1 and P2, n = 10 per group). Experimental periodontitis was established by ligature and infection with Porphyromonas gingivalis around the maxillae first molar bilaterally. MSC-like cells were generated from rat iPSCs, and transducted with TSG-6. iPSC-MSCs or iPSC-MSCs/TSG-6 were administrated to rats in Group-P1 or P2 intravenously and topically, once a week for three weeks. Blood samples were obtained one week post-injection for the analysis of serum pro-inflammatory cytokines. All animals were killed 3 months post-treatment; maxillae were then dissected for histological analysis, tartrate-resistant acid phosphatase (TRAP) staining, and morphological analysis of alveolar bone loss.

resultsAdministration of iPSC-MSC/TSG-6 significantly decreased serum levels of IL-1β and TNF-α in the Group-P2 rats (65.78 pg/ml and 0.56 pg/ml) compared with those in Group-P (168.31 pg/ml and 1.15 pg/ml respectively) (p<0.05). Both alveolar bone loss and the number of TRAP-positive osteoclasts showed a significant decrease in rats that received iPSC-MSC/TSG-6 treatment compared to untreated rats in Group-P (p<0.05).

conclusionsWe demonstrated that overexpression of TSG-6 in rat iPSC-derived MSCs were capable of decreasing inflammation in experimental periodontitis and inhibiting alveolar bone resorption. This may potentially serve as an alternative stem-cell-based approach in the treatment and regeneration of periodontal tissues.

Indexed as

Mesenchymal Stem Cell TransplantationAdministration, TopicalAlveolar Bone LossAnimalsBacteroidaceae InfectionsCell Adhesion MoleculesCell DifferentiationCell EngineeringDisease Models, AnimalFemaleGene ExpressionInduced Pluripotent Stem CellsInjections, IntravenousInterleukin-1betaMaxillaMesenchymal Stem CellsCell Adhesion MoleculesInterleukin-1betaTnfaip6 protein, ratTumor Necrosis Factor-alpha

Identifiers

PMID24979372
PMCPMC4076279
OpenAlexW2089971263

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.