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Rady D, Albar N, Khayat W, Khalil M, Raafat S, Ramadan M, Saber S, Shamel M. Evaluation of dental pulp stem cells response to flowable nano-hybrid dental composites: A comparative analysis. PLoS One 2024; 19:e0303154. [PMID: 38739591 PMCID: PMC11090312 DOI: 10.1371/journal.pone.0303154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/20/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Flowable resin composites (FRC) are tooth-colored restorative materials that contain a lower filler particle content, and lower viscosity than their bulk counterparts, making them useful for specific clinical applications. Yet, their chemical makeup may impact the cellular population of the tooth pulp. This in-vitro study assessed the cytocompatibility and odontogenic differentiation capacity of dental pulp stem cells (DPSCs) in response to two recent FRC material extracts. METHODS Extracts of the FRC Aura easyflow (AEF) and Polofil NHT Flow (PNF) were applied to DPSCs isolated from extracted human teeth. Cell viability of DPSCs was assessed using MTT assay on days 1, 3 and 7. Cell migration was assessed using the wound healing assay. DPSCs' capacity for osteo/odontogenic differentiation was assessed by measuring the degree of mineralization by Alizarin Red S staining, alkaline phosphatase enzyme (ALP) activity, and monitoring the expression of osteoprotegerin (OPG), RUNX Family Transcription Factor 2 (RUNX2), and the odontogenic marker dentin sialophosphoprotein (DSPP) by RT-PCR. Monomer release from the FRC was also assessed by High-performance liquid chromatography analysis (HPLC). RESULTS DPSCs exposed to PNF extracts showed significantly higher cell viability, faster wound closure, and superior odontogenic differentiation. This was apparent through Alizarin Red staining of calcified nodules, elevated alkaline phosphatase activity, and increased expression of osteo/odontogenic markers. Moreover, HPLC analysis revealed a higher release of TEDGMA, UDMA, and BISGMA from AEF. CONCLUSIONS PNF showed better cytocompatibility and enhancement of odontogenic differentiation than AEF.
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Affiliation(s)
- Dina Rady
- Faculty of Dentistry, Oral Biology Department, Cairo University, Cairo, Egypt
- Faculty of Dentistry, Stem Cells and Tissue Engineering Research Group, Cairo University, Cairo, Egypt
| | - Nassreen Albar
- Restorative Department/ Operative, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Waad Khayat
- Department of Restorative Dentistry, College of Dentistry, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Mennatullah Khalil
- Hamdan Bin Mohamed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Healthcare City, Dubai, United Arab Emirates
- Faculty of Dentistry, Dental Biomaterials Department, Fayoum University, Fayoum, Egypt
| | - Shereen Raafat
- Faculty of Dentistry, Pharmacology Department, The British University in Egypt (BUE), El Sherouk City, Egypt
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt
| | - Mohamed Ramadan
- Specialized Dental Hospital, Armed Forces Medical Complex, Cairo, Egypt
| | - Shehabeldin Saber
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt
- Faculty of Dentistry, Department of Endodontics, The British University in Egypt (BUE), El Sherouk City, Egypt
- Faculty of Dentistry, Department of Endodontics, Ain Shams University, Cairo, Egypt
| | - Mohamed Shamel
- Faculty of Dentistry, Oral Biology Department, The British University in Egypt, El Sherouk City, Egypt
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Shamel M, Raafat S, El Karim I, Saber S. Photobiomodulation and low-intensity pulsed ultrasound synergistically enhance dental mesenchymal stem cells viability, migration and differentiation: an invitro study. Odontology 2024:10.1007/s10266-024-00920-6. [PMID: 38517569 DOI: 10.1007/s10266-024-00920-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/18/2024] [Indexed: 03/24/2024]
Abstract
Novel methods and technologies that improve mesenchymal stem cells (MSCs) proliferation and differentiation properties are required to increase their clinical efficacy. Photobiomodulation (PBM) and low-intensity pulsed ultrasound (LIPUS) are two strategies that can be used to enhance the regenerative properties of dental MSCs. This study evaluated the cytocompatibility and osteo/odontogenic differentiation of dental pulp, periodontal ligament, and gingival MSCs after stimulation by either PBM or LIPUS and their combined effect. MTT assay, cell migration assay, osteo/odontogenic differentiation by AR staining and ALP activity, and expression of osteo/odontogenic markers (OPG, OC, RUNX2, DSPP, DMP1) by RT-qPCR were evaluated. Statistical analysis was performed using ANOVA, followed by Tukey's post hoc test, with a p-value of less than 0.05 considered significant. The results showed that combined stimulation by PBM and LIPUS resulted in significantly the highest viability of MSCs, the fastest migration, the most dense AR staining, the most increased ALP activity, and the most elevated levels of osteogenic and odontogenic markers. The synergetic stimulation of PBM and LIPUS can be utilized in cell-based regenerative approaches to promote the properties of dental MSCs.
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Affiliation(s)
- Mohamed Shamel
- Department of Oral Biology, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt
| | - Shereen Raafat
- Department of Pharmacology, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt
| | - Ikhlas El Karim
- School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, UK
| | - Shehabeldin Saber
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt.
- Department of Endodontics, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt.
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Saber S, Raafat S, Elashiry M, El-Banna A, Schäfer E. Effect of Different Sealers on the Cytocompatibility and Osteogenic Potential of Human Periodontal Ligament Stem Cells: An In Vitro Study. J Clin Med 2023; 12:jcm12062344. [PMID: 36983344 PMCID: PMC10056919 DOI: 10.3390/jcm12062344] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023] Open
Abstract
Background: There is tendency for unavoidable sealer extrusion in some clinical cases. This might adversely affect host stem cells and affect healing. This study aimed to investigate the effect of different sealers on the cytocompatibility and osteogenic potential of human periodontal ligament stem cells (hPDLSCs). Methods: The cytotoxic effect of the extracted elutes of VDW.1Seal (VDW.1), Endosequence BC Sealer HiFlow (ES), GuttaFlow-2 (GF), and ADSeal (AD-S) on the hPDLSCs was determined using the MTT assay. Cell proliferation and migration were assessed by the scratch wound healing assay. Osteogenic differentiation potential was assessed. Measurement of pH values and calcium ions release was performed. Results: GF had a significantly higher percentage of viable cells. The cell migration assay showed that GF demonstrated the lowest open wound area percentage. GF and AD-S showed the highest calcium nodule deposition. GF demonstrated higher ALP activity than ES. Expression of RUNX2 and OC genes was similar for all sealers, while OPG gene expression was significantly higher for VDW.1 and GF. ES and AD-S displayed the highest pH values on day 1. Calcium ion release of ES and VDW.1 was significantly the highest. Conclusions: GuttaFlow-2 and VDW.1Seal sealers have favorable behavior toward host stem cells.
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Affiliation(s)
- Shehabeldin Saber
- Department of Endodontics, Faculty of Dentistry, The British University in Egypt (BUE), El Sherouk City 11837, Egypt
- Centre for Innovative Dental Sciences (CIDS), Faculty of Dentistry, The British University in Egypt (BUE), El Sherouk City 11837, Egypt;
- Department of Endodontics, Faculty of Dentistry, Ain Shams University, Cairo 11566, Egypt;
- Correspondence:
| | - Shereen Raafat
- Centre for Innovative Dental Sciences (CIDS), Faculty of Dentistry, The British University in Egypt (BUE), El Sherouk City 11837, Egypt;
- Pharmacology Department, Faculty of Dentistry, The British University in Egypt (BUE), El Sherouk City 11837, Egypt
| | - Mohamed Elashiry
- Department of Endodontics, Faculty of Dentistry, Ain Shams University, Cairo 11566, Egypt;
| | - Ahmed El-Banna
- Department of Biomaterials, Faculty of Dentistry, Ain Shams University, Cairo 11566, Egypt;
| | - Edgar Schäfer
- Central Interdisciplinary Ambulance in the School of Dentistry, University of Münster, 48149 Münster, Germany;
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Hamdy O, Raafat S, Saleh GA, Atallah K, M Saleh M, Shebl AM, Hegazy MA. Papillary thyroid carcinoma in cervical lymph nodes with vanished thyroid gland after ablation of Graves' disease by radioactive iodine. Ann R Coll Surg Engl 2019; 101:e122-e124. [PMID: 30854863 DOI: 10.1308/rcsann.2019.0033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Primary thyroid carcinoma after thyroid ablation by radioactive iodine is rare. We present a very rare condition of lateral apparent papillary thyroid carcinoma eight years after receiving radioactive iodine for thyrotoxicosis, which led to complete anatomical and functional involution of the thyroid gland.
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Affiliation(s)
- O Hamdy
- Surgical Oncology Unit, Oncology Center Mansoura University , Mansoura , Egypt
| | - S Raafat
- Pathology Department, Faculty of medicine, Mansoura University , Mansoura , Egypt
| | - G A Saleh
- Radiology Department, Faculty of medicine, Mansoura University , Mansoura , Egypt
| | - K Atallah
- Surgical Oncology Unit, Oncology Center Mansoura University , Mansoura , Egypt
| | - Mahmoud M Saleh
- Surgical Oncology Unit, Oncology Center Mansoura University , Mansoura , Egypt
| | - A M Shebl
- Pathology Department, Faculty of medicine, Mansoura University , Mansoura , Egypt
| | - M A Hegazy
- Surgical Oncology Unit, Oncology Center Mansoura University , Mansoura , Egypt
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Abstract
AIMS The aim of present study was to assess whether vitamin D, with proven beneficial effects on the cardiovascular system, has any effect on angina and exercise-induced ischemia in patients with cardiac syndrome X and low serum vitamin D. METHODS Patients with cardiac syndrome X and low serum vitamin D3 were studied before and after treatment with an intramuscular injection of vitamin D3 (300,000 units, every other week for 2 months). We determined the angina episode (per day) and several indices of exercise capacity. RESULTS At the end of the treatment course (75±6 day), a significant increase of serum vitamin D3 occurred and was within the normal range (45±8 ng/ml) and the frequency of angina improved significantly (p=0.003). Exercise duration and maximal work capacity increased significantly (p<0.001). Maximal ST-segment depression (mm) decreased significantly (p=0.001). The calculated Duck treadmill score improved significantly (p=0.001). CONCLUSIONS Our findings show that vitamin D replacement therapy in patients with cardiac syndrome X and vitamin D deficiency dramatically improves symptoms and signs of ischemia.
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Affiliation(s)
- A Andishmand
- Cardiovascular Research Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Z Ansari
- Cardiovascular Research Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - M H Soltani
- Cardiovascular Research Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - H Mirshamsi
- Cardiovascular Research Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - S Raafat
- Cardiovascular Research Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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