Evidence map›Paper›PMID 29208033›Full record

ArticleStem cell research & therapy2017

Evaluating the oxysterol combination of 22(S)-hydroxycholesterol and 20(S)-hydroxycholesterol in periodontal regeneration using periodontal ligament stem cells and alveolar bone healing models.

Jin-Sun Lee, EunJi Kim, Seonggu Han, Kyung Lhi Kang, Jung Sun Heo

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. [Research Progress on the Role and Regulatory Mechanisms of Lipid Metabolism in the Osteogenic/Odontogenic Differentiation of Dental Stem Cells].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Fucoidan (Marine drugs · 2022
    Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

5 authors at 1 institution in 1 country.

Jin-Sun LeeDepartment of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea.
EunJi KimDepartment of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea.
Seonggu HanDepartment of Periodontology, School of Dentistry, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea.
Kyung Lhi KangDepartment of Periodontology, School of Dentistry, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea. periokkl@khu.ac.kr.
Jung Sun HeoDepartment of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea. heojs@khu.ac.kr.ORCID http://orcid.org/0000-0002-9227-8303
Kyung Hee University · KR

Funding

National Research Foundation of Korea 2015R1A2A2A01006490
6 · The paper itself

Abstract

backgroundOxysterols, oxygenated by-products of cholesterol biosynthesis, play roles in various physiological and pathological systems. However, the effects of oxysterols on periodontal regeneration are unknown. This study investigated the effects of the specific oxysterol combination of 22(S)-hydroxycholesterol and 20(S)-hydroxycholesterol (SS) on the regeneration of periodontal tissues using in-vitro periodontal ligament stem cells (PDLSCs) and in-vivo models of alveolar bone defect.

methodsTo evaluate the effects of the combined oxysterols on PDLSC biology, we studied the SS-induced osteogenic differentiation of PDLSCs by assessing alkaline phosphatase activity, intracellular calcium levels [Ca

resultsOxysterols increased the osteogenic activity of PDLSCs compared with the control group. The expression of liver X receptor (LXR) α and β, the nuclear receptors for oxysterols, and their target gene, ATP-binding cassette transporter A1 (ABCA1), increased significantly during osteogenesis. Oxysterols also increased protein levels of the hedgehog (Hh) receptor Smo and the transcription factor Gli1. We further confirmed the reciprocal reaction between the LXRs and Hh signaling. Transfection of both LXRα and LXRβ siRNAs decreased Smo and Gli1 protein levels. In contrast, the inhibition of Hh signaling attenuated the LXRα and LXRβ protein levels. Subsequently, SS-induced osteogenic activity of PDLSCs was suppressed by the inhibition of LXRs or Hh signaling. The application of SS also enhanced bone formation in the defect sites of in-vivo models, showing equivalent efficacy to recombinant human bone morphogenetic protein-2.

conclusionsThese findings suggest that a specific combination of oxysterols promoted periodontal regeneration by regulating PDLSC activity and alveolar bone regeneration.

Indexed as

Alkaline PhosphataseAnimalsATP Binding Cassette Transporter 1Bone Morphogenetic Protein 2Bone RegenerationCell DifferentiationGene Expression RegulationHumansHydroxycholesterolsLiver X ReceptorsMaleMolarOsteogenesisPeriodontal LigamentPrimary Cell CultureProtein IsoformsABCA1 protein, humanAlkaline PhosphataseATP Binding Cassette Transporter 1BMP2 protein, humanBone Morphogenetic Protein 2GLI1 protein, humanHydroxycholesterolsLiver X ReceptorsProtein IsoformsSmoothened ReceptorSMO protein, humanZinc Finger Protein GLI1Alveolar bone defectBone regenerationOsteogenic differentiationOxysterolPeriodontal ligament stem cells

Identifiers

PMID29208033
PMCPMC5717822
OpenAlexW2774083134

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.