Evidence map›Paper›PMID 36076278›Full record

ArticleStem cell research & therapy2022

N-acetylcysteine regulates dental follicle stem cell osteogenesis and alveolar bone repair via ROS scavenging.

Zhaosong Meng, Jiacheng Liu, Zhipeng Feng, Shuling Guo, Mingzhe Wang, Zheng Wang, Zhe Li, Hongjie Li, Lei Sui

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 2% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Zhaosong Meng *Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tianjin Medical University, Tianjin, China.ORCID 0000-0002-8977-8446
Jiacheng Liu *Department of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China.ORCID 0000-0003-0021-9478
Zhipeng FengDepartment of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China.
Shuling GuoDepartment of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China.
Mingzhe WangSchool of Stomatology, Tianjin Medical University, Tianjin, China.
Zheng WangDepartment of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China.
Zhe LiDepartment of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China.
Hongjie LiSchool of Stomatology, Tianjin Medical University, Tianjin, China. hongjietj@163.com.
Lei SuiDepartment of Prosthodontics, School and Hospital of Stomatology, Tianjin Medical University, 12 Qixiangtai Road, Tianjin, 300070, China. suilei@tmu.edu.cn.ORCID 0000-0003-3586-9999
Tianjin Medical University · CNTianjin Stomatological Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDental follicle stem cells (DFSCs) show mesenchymal stem cell properties with the potential for alveolar bone regeneration. Stem cell properties can be impaired by reactive oxygen species (ROS), prompting us to examine the importance of scavenging ROS for stem cell-based tissue regeneration. This study aimed to investigate the effect and mechanism of N-acetylcysteine (NAC), a promising antioxidant, on the properties of DFSCs and DFSC-based alveolar bone regeneration.

methodsDFSCs were cultured in media supplemented with different concentrations of NAC (0-10 mM). Cytologic experiments, RNA-sequencing and antioxidant assays were performed in vitro in human DFSCs (hDFSCs). Rat maxillary first molar extraction models were constructed, histological and radiological examinations were performed at day 7 post-surgery to investigate alveolar bone regeneration in tooth extraction sockets after local transplantation of NAC, rat DFSCs (rDFSCs) or NAC-treated rDFSCs.

results5 mM NAC-treated hDFSCs exhibited better proliferation, less senescent rate, higher stem cell-specific marker and immune-related factor expression with the strongest osteogenic differentiation; other concentrations were also beneficial for maintaining stem cell properties. RNA-sequencing identified 803 differentially expressed genes between hDFSCs with and without 5 mM NAC. "Developmental process (GO:0032502)" was prominent, bioinformatic analysis of 394 involved genes revealed functional and pathway enrichment of ossification and PI3K/AKT pathway, respectively. Furthermore, after NAC treatment, the reduction of ROS levels (ROS, superoxide, hydrogen peroxide), the induction of antioxidant levels (glutathione, catalase, superoxide dismutase), the upregulation of PI3K/AKT signaling (PI3K-p110, PI3K-p85, AKT, phosphorylated-PI3K-p85, phosphorylated-AKT) and the rebound of ROS level upon PI3K/AKT inhibition were showed. Local transplantation of NAC, rDFSCs or NAC-treated rDFSCs was safe and promoted oral socket bone formation after tooth extraction, with application of NAC-treated rDFSCs possessing the best effect.

conclusionsThe proper concentration of NAC enhances DFSC properties, especially osteogenesis, via PI3K/AKT/ROS signaling, and offers clinical potential for stem cell-based alveolar bone regeneration.

Indexed as

AcetylcysteineOsteogenesisAnimalsAntioxidantsCell DifferentiationCells, CulturedDental SacHumansPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRatsReactive Oxygen SpeciesRNAStem CellsAcetylcysteineAntioxidantsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReactive Oxygen SpeciesRNABone developmentCell differentiationDental follicle stem cellsN-acetylcysteineReactive oxygen speciesSignal transduction

Identifiers

PMID36076278
PMCPMC9461171
OpenAlexW4294970469

What Socratic 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 Socratic graph.