scholarly journals CGF Membrane Promotes Periodontal Tissue Regeneration Mediated by hUCMSCs through Upregulating TAZ and Osteogenic Differentiation Genes

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Wenjing Li ◽  
Feifei Wang ◽  
Fusheng Dong ◽  
Zhiyong Zhang ◽  
Peng Song ◽  
...  
Keyword(s):  
Cell Viability ◽  
Osteogenic Differentiation ◽  
Tissue Regeneration ◽  
Nuclear Transfer ◽  
Enzyme Linked Immunosorbent Assay ◽  
Human Umbilical Cord ◽  
Periodontal Tissue ◽  
Periodontal Ligament Fibroblasts ◽  
Alizarin Red ◽  
Periodontal Tissue Regeneration

Concentrated growth factor (CGF) membranes are widely used in basic and clinical research of soft and hard tissue regeneration, but its effect on periodontal tissue regeneration is less studied. This study explored the role of CGF membranes in periodontal tissue regeneration mediated by human umbilical cord mesenchymal stem cells (hUCMSCs). HUCMSCs and human periodontal ligament fibroblasts (HPLFs) were extracted and identified by microscope and flow cytometry. The effects of the extracted CGF membrane on cell viability, osteogenic differentiation ability, osteopontin (OPN) expression, alkaline phosphatase (ALP) content, and osteogenic differentiation-related genes (Runt-related transcription factor 2 (RUNX2); osteocalcin (OCN); ALP), Tafazzin (TAZ) expression, and nuclear transfer were examined by MTT assay, alizarin red staining, immunofluorescence, enzyme-linked immunosorbent assay (ELISA), quantitative real-time polymerase chain reaction (qRT-PCR), and Western blot. Rescue experiments were performed to examine the effects of TAZ transfection and cell coculture. In the identified hUCMSCs (positive expressions of CD29, CD44, CD146, and CD105), overexpressed TAZ (pc-TAZ) enhanced the promotive effect of CGF membrane on cell viability, cell cycle, mineralization, ALP content and expressions of OPN, TAZ and osteogenic differentiation-related genes, and nuclear transfer. However, silencing TAZ showed opposite effects. The coculture of hUCMSCs and HPLFs further promoted the basic biological functions of HPLFs by upregulating osteogenic differentiation-related genes and COL-1 but downregulated MMP1 expression. Pc-TAZ could enhance the effect of CGF membrane on promoting periodontal tissue regeneration. CGF membrane promoted periodontal tissue regeneration through upregulating TAZ and osteogenic differentiation-related genes.

scholarly journals Two Transcripts of FBXO5 Promote Migration and Osteogenic Differentiation of Human Periodontal Ligament Mesenchymal Stem Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Lin Liu ◽  
Kun Liu ◽  
Yanzhe Yan ◽  
Zhuangzhuang Chu ◽  
Yi Tang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Osteogenic Differentiation ◽  
Tissue Regeneration ◽  
Periodontal Ligament ◽  
Periodontal Tissue ◽  
Alizarin Red ◽  
Differentiation Potential ◽  
Alp Activity ◽  
Periodontal Tissue Regeneration

Objectives. Enhanced migration and osteogenic differentiation of mesenchymal stem cells (MSCs) are beneficial for MSC-mediated periodontal tissue regeneration, a promising method for periodontitis treatment. FBXO5, a member of the F-box protein family, is involved in the osteogenic differentiation of MSCs. Here, we investigated the effect of FBXO5 on human periodontal ligament stem cells (hPDLSCs). Materials and Methods. hPDLSCs were isolated from periodontal ligament tissue. Lentivirus FBXO5 shRNA was used to silence FBXO5 expression. Two transcripts of FBXO5 were overexpressed and transduced into hPDLSCs via retroviral infection. Migration and osteogenic differentiation of hPDLSCs were evaluated using the scratch migration assay, alkaline phosphatase (ALP) activity, ALP staining, alizarin red staining, western blotting, and real-time polymerase chain reaction. Results. The expression of FBXO5 was upregulated after osteogenic induction in hPDLSCs. FBXO5 knockdown attenuated migration, inhibited ALP activity and mineralization, and decreased RUNX2, OSX, and OCN expression, while the overexpression of two transcript isoforms significantly accelerated migration, enhanced ALP activity and mineralization, and increased RUNX2, OSX, and OCN expression in hPDLSCs. Conclusions. Both isoforms of FBXO5 promoted the migration and osteogenic differentiation potential of hPDLSCs, which identified a potential target for improving periodontal tissue regeneration.

scholarly journals Surgical Management of Horizontal Root Fracture with Platelet Rich Fibrin (PRF) Placement: Case Report of Two Cases

2013 ◽  
Vol 01 (02) ◽  
pp. 125-128
Author(s):  
Parul Bansal ◽  
Kalpana Kanyal ◽  
Vineeta Nikhil
Keyword(s):  
Case Report ◽  
Tissue Regeneration ◽  
Surgical Approach ◽  
Permanent Teeth ◽  
Periodontal Tissue ◽  
Root Fracture ◽  
Platelet Rich Fibrin ◽  
Periodontal Tissue Regeneration ◽  
Root Fractures ◽  
Horizontal Root Fracture

AbstractRadicular fractures in permanent teeth are uncommon injuries among dental traumas, being only 0.5 - 7% of the cases. Horizontal root fractures can be managed endodontically or combined endodontic and surgical approach. Treatment varies according to the displacement and vitality of the fragments. This paper presents a case report of two cases of horizontal root fracture, present between the middle and apical third of central incisors, which were managed by combined endodontic and surgical approach, while in second case it was followed by PRF placement to facilitate osteoinduction and periodontal tissue regeneration.

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