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Abed ZI, Arianejad M, Azizi Z. Mesenchymal stem cell-derived exosomes decrease Hyperplasia in Psoriasis by inducing transforming growth factor β2 (TGF-β2). Mol Biol Rep 2024; 51:635. [PMID: 38727850 DOI: 10.1007/s11033-024-09337-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/08/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Psoriasis, a chronic inflammatory skin disease, is increasingly effectively managed with the targeted immunotherapy; however, long-term immunotherapy carries health risks, and loss of response. Therefore, we need to develop the alternative treatment strategies. Mesenchymal stem/stromal cell (M.S.C.) exosomes stand out for their remarkable immunomodulatory properties, gaining widespread recognition. This study investigated whether M.S.C. exosomes can reduce psoriasis-induced hyperplasia by inducing Transforming Growth Factor beta 2 (TGF-beta2) signaling. METHODOLOGY Exosomes were isolated from M.S.C.s by ultracentrifugation. Then, scanning electron microscopy was used for the morphology of exosomes. To ascertain the exosome concentration, the Bradford test was used. To ascertain the cellular toxicity of exosomes in Human Umbilical Vein Endothelial Cells ( H.U.V.E.C), an MTT experiment was then conducted. Real-time PCR was used to quantify TGF beta2 expression levels, whereas an ELISA immunosorbent assay was used to determine the protein concentration of TGF beta2. RESULTS In this study, the exosomes of 15-30 nm in size that were uniform, and cup-shaped were isolated. Moreover, the IC50 value for this Treatment was calculated to be 181.750 µg/ml. The concentration of TGF-β2 gene in the target cells significantly increased following Treatment with the exosomes. Furthermore, the expression level of the studied gene significantly increased due to the Treatment. CONCLUSION Upregulating the expression of TGF-β2 in psoriatic cells via TGF-β2 signaling is one way exosomes can help reduce hyperplasia.
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Affiliation(s)
- Zahraa Ibrahim Abed
- Department of Biology, Science and Research Branch, Islamic Azad University, P.O. Box 14515-775, Tehran, Iran
| | - Mona Arianejad
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Azizi
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Ikbal LK, Kerem K, Burak B, Ahmet K. Finite Element Analysis of the Stress Distribution Associated With Different Implant Designs for Different Bone Densities. J Prosthodont 2022; 31:614-622. [PMID: 35603892 DOI: 10.1111/jopr.13539] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 05/13/2022] [Indexed: 11/28/2022] Open
Abstract
PURPOSE The main objective of this study was to investigate the influence of implant design, bone type, and abutment angulation on stress distribution around dental implants. MATERIALS AND METHODS Two implant designs with different thread designs, but with the same length and brand were used. The three-dimensional geometry of the bone was simulated with four different bone types, for two different abutment angulations. A 30° oblique load of 200 N was applied to the implant abutments. Maximum principal stress and minimum principal stresses were obtained for bone and Von misses stresses were obtained for dental implants. RESULTS The distribution of the load was concentrated at the coronal portion of the bone and implants. The stress distributions to the D4 type bone were higher for implant models. Increased bone density and increased cortical bone thickness cause less stress on bone and implants. All implants showed a good distribution of forces for non-axial loads, with higher stresses concentrated at the crestal region of the bone-implant interface. In implant types using straight abutments there was a decrease in stress as the bone density decreased. The change in the abutment angle also caused an increase in stress. CONCLUSIONS The use of different implant threads and angled abutments affects the stress on the surrounding bone and implant. In addition, it was observed that a decrease in density in trabecular bone and a decrease in cortical bone thickness increased stress. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Kilic Kerem
- Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
| | - Bal Burak
- Department of Mechanical Engineering, Abdullah Gul University, Kayseri, Turkey
| | - Kilavuz Ahmet
- Department of Mechanical Engineering, Abdullah Gul University, Kayseri, Turkey
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ZENG X, XU X, KONG J, RONG C, SHE J, GUO W, SHI L, ZHAO D. Effect of Puerarin on EBI after SAH. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.45021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- Xiangwu ZENG
- The Second People's Hospital of Zhangye City, China
| | - Xiuzhen XU
- The Second People's Hospital of Zhangye City, China
| | | | - Congxue RONG
- The Second People's Hospital of Zhangye City, China
| | - Jianhu SHE
- The Second People's Hospital of Zhangye City, China
| | - Wanliang GUO
- The Second People's Hospital of Zhangye City, China
| | - Lijuan SHI
- The Second People's Hospital of Zhangye City, China
| | - Dianfan ZHAO
- The Second People's Hospital of Zhangye City, China
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Age of the donor affects the nature of in vitro cultured human dental pulp stem cells. Saudi Dent J 2021; 33:524-532. [PMID: 34803296 PMCID: PMC8589584 DOI: 10.1016/j.sdentj.2020.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/26/2020] [Accepted: 09/13/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives The dental pulp stem cells (DPSCs) of six donors (three young donors aged < 19 years and three adult donors aged > 25 and < 30 years) were characterized for their stem cell marker expression and differentiation potential to study the effect of donor age on DPSCs in vitro. Methods DPSCs were cultured in αMEM supplemented with 20% fetal calf serum (conventional conditions) or on fibronectin-coated flasks with neurobasal medium supplemented with B27, bFGF and EGF (alternative conditions). DPSCs were characterized by immunofluorescence staining to detect the neural crest/mesenchymal stem cells markers P75 and CD146, respectively. The differentiation potential was tested by the induction of DPSCs into osteogenic, adipogenic and glial lineages and then by detecting the corresponding markers osteocalcin, lipidtox and S100ß, respectively. Results The DPSCs of the young donors expressed CD146 only under the conventional conditions and expressed P75 regardless of the culture conditions. However, the DPSCs of adult donors expressed CD146 only under the alternative conditions and expressed P75 only under conventional conditions. Only the DPSCs of the young donors differentiated into the glial linage. The DPSCs of the adult donors differentiated more efficiently into the adipogenic linage. Osteogenic differentiation was comparable. Conclusion Donor age affects the expression of stem cell markers and differentiation potential of DPSCs. Moreover, the effect of culture conditions on DPSCs is age dependent.
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Akbari M, Taheri M, Mehrpoor G, Eslami S, Hussen BM, Ghafouri-Fard S, Arefian N. Assessment of ACE1 variants and ACE1/ACE2 expression in COVID-19 patients. Vascul Pharmacol 2021; 142:106934. [PMID: 34774774 PMCID: PMC8579741 DOI: 10.1016/j.vph.2021.106934] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/26/2021] [Accepted: 11/07/2021] [Indexed: 12/12/2022]
Abstract
Contribution of the renin-angiotensinogen system in the risk of COVID-19 and related complications have been assessed by several groups. However, the results are not consistent. We examined levels of ACE1 and ACE2 in the circulation of two groups of COVID-19 patients (ICU-admitted and general ward-admitted patients) compared with healthy controls. We also genotyped two polymorphisms in ACE1 gene (the ACE1-I/D polymorphism rs1799752 and rs4359) to appraise their association with expression levels of ACE1 and ACE2. Expression level of ACE1 was significantly higher in ICU patients compared with non-ICU patients (P value = 0.02). However, its expression was not significantly different between total COVID-19 patients and total controls (P value = 0.34). ACE2 expression was not different ether between two groups of COVID-19 patients (P value = 0.12) or between total COVID-19 patients and total controls (P value = 0.79). While distribution of rs1799752 and rs4359 alleles was similar between study groups, genotype frequencies of rs1799752 were differently distributed among total COVID-19 patients and controls (P value = 0.00001). Moreover, genotypes of the other polymorphism tended to be distinctively distributed among these two groups (P value = 0.06). In the total population of patients and controls, different ACE1 mRNA levels were observed among carriers of different rs1799752 genotypes; of note, ID genotype carriers showed a higher expression of ACE1 compared with II genotype carriers (P = 0.01). ACE1 polymorphisms might affect risk of COVID-19 and expression of ACE transcripts.
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Affiliation(s)
- Mohammadarian Akbari
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, 07740 Jena, Germany
| | - Golbarg Mehrpoor
- Department of Internal Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Solat Eslami
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran; Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Iraq
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Noormohammad Arefian
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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De Vito D, Fusco A, Benincasa C, Laghi L, Ceruso FM. Healthcare Management During a Pandemic: The Other Side of the Coin for the Treatment of Covid-19 Infection. Endocr Metab Immune Disord Drug Targets 2021; 22:383-394. [PMID: 34635046 DOI: 10.2174/1871530321666211011102038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/07/2021] [Accepted: 08/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND World Health Organization (WHO) has increasingly improved the guidelines to tackle the spread of Coronavirus Disease 2019 (COVID-19) among the worldwide population. In this context, each country has introduced specific social, healthcare, political and macroeconomic measures to face COVID pandemic locally. OBJECTIVE The general aim of this comparative overview is to highlight the most significant effects of COVID-19 pandemic on the main healthcare systems. Also, we critically analyzed the macroeconomic variables and the most promising solutions to improve both healthcare system and its related risk management, taking into specific consideration the most industrialized countries. METHOD The main strategy has been built on a renewed concept of the hospital, rebuilding the old concepts of "triage" and "intensive care". Recently, COVID-19 hospitals have allowed to cater the patients affected by COVID-19. Moreover, the reshaping of several healthcare policies and requirements has led to several positive effects, such as the recruitment of a huge number of human resources in the healthcare systems. Nevertheless, several negative effects have also impacted the communities mostly subjected to infections. CONCLUSION Undoubtedly, the national healthcare systems have somehow addressed the people's needs, trying not to neglect the social, healthcare, economic and political aspects. In our overview, we have reported how the different actions taken in the last months, have resulted in different outcomes.
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Affiliation(s)
- Danila De Vito
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro". Italy
| | | | - Caterina Benincasa
- Marrelli Health - Tecnologica Research Institute, Biomedical Section, Street E. Fermi 1, Crotone. Italy
| | - Luca Laghi
- Queen Elisabeth hospital, Birmingham . United Kingdom
| | - Francesco M Ceruso
- Department of Dentistry "Fra G.B. Orsenigo - Ospedale San Pietro F.B.F.", Rome. Italy
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Jeyaraj P. Splitting and Splaying Apart of the Craniomaxillofacial Skeleton by Medially Directed Disruptive Forces of Unusual Etiologies- A Case Series. Ann Maxillofac Surg 2021; 11:195-213. [PMID: 34522684 PMCID: PMC8407627 DOI: 10.4103/ams.ams_275_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/20/2020] [Accepted: 10/12/2020] [Indexed: 11/04/2022] Open
Abstract
Introduction Extreme forces directed towards the centre of the facial region can produce devastating injuries, with disruption of the mandible, maxilla and naso-orbito-ethmoid complex, with or without frontal bone involvement. The magnitude and trajectory of the force and nature of the impacting object, dictate the degree of displacement and comminution of the craniomaxillofacial skeletal components, as well as the extent of soft tissue loss sustained. Diagnosis & Challenges To elucidate various challenges faced in the management of four cases of extreme craniomaxillofacial injuries, caused by centrally directed forces of rather unusual etiologies, namely, a traversing bullet, a bamboo rod, a heavy iron cattle tethering peg and a metal electrical pole. In each of the cases, the force of impact resulted in splitting and splaying apart of the facial skeleton, with a resultant increase in its transverse width, and an ensuing severe facial deformity and functional debility. Rationale & Interventions A ߢBottom-up, Outside-in' surgical sequence was employed to carry out reduction, fixation and reconstruction of the deranged maxillofacial skeletal architecture and restoration of the soft tissue morphology. Outcomes & Lessons The transverse dimensions of the flared out facial frames could be re-established and restored to their pre-trauma status successfully in all the cases, thereby achieving excellent esthetic and functional outcomes. Despite the extensive and serious nature of the injuries sustained, gross residual craniofacial defects, deformities and asymmetries, as well as debilitating functional deficits, could be effectively and successfully averted.
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Affiliation(s)
- Priya Jeyaraj
- Department of Oral and Maxillofacial Surgery, Military Dental Centre, Secunderabad, Telangana, India
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Niu Q, Shen S, He J, Wang L. CKIP-1 contributes to osteogenic differentiation of mouse bone marrow mesenchymal stem cells. Regen Med 2021; 16:847-859. [PMID: 34498492 DOI: 10.2217/rme-2020-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Osteogenesis greatly depends on the differentiation of bone marrow mesenchymal stem cells (BMSCs). CKIP-1 is considered to be a negative regulator of BMSCs. Methods: We established a CKIP-1 knockout mouse model, then isolated and cultured BMSCs from wild-type and knockout groups. Results: Our data demonstrated that CKIP-1 knockout significantly increased bone structure in the experimental mouse model and enhanced BMSC proliferation. CKIP-1 knockout contributed to osteoblastic and adipogenic differentiation. Furthermore, CKIP-1 regulated osteogenesis in BMSCs via the MAPK signaling pathway, and BMSCs from the CKIP-1 knockout mice were effective in repairing the skull defect null mice. Conclusion: Our results concluded that silencing of CKIP-1 promoted osteogenesis in experimental mice and increased BMSCs differentiation via upregulation of the MAPK signaling pathway.
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Affiliation(s)
- Qiannan Niu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Orthodontics, The Hospital of Stomatology, The Fourth Military Medical University, No.145 West Changle Road, Xi'an, 710000, Shaanxi, China
| | - Shuning Shen
- Department of Stomatology, No.984 Hospital of PLA, Beijing, 100094, China
| | - Jiaojiao He
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Orthodontics, The Hospital of Stomatology, The Fourth Military Medical University, No.145 West Changle Road, Xi'an, 710000, Shaanxi, China
| | - Lei Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Orthodontics, The Hospital of Stomatology, The Fourth Military Medical University, No.145 West Changle Road, Xi'an, 710000, Shaanxi, China
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Shimohira T, Niimi H, Ohsugi Y, Tsuchiya Y, Morita K, Yoshida S, Hatasa M, Shiba T, Kadokura H, Yokose S, Katagiri S, Iwata T, Aoki A. Low-Level Erbium-Doped Yttrium Aluminum Garnet Laser Irradiation Induced Alteration of Gene Expression in Osteogenic Cells from Rat Calvariae. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2021; 39:566-577. [PMID: 34339325 DOI: 10.1089/photob.2020.4958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Objective: The aim of this study was to investigate the effect of low-level erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiation on gene expression in osteogenic cells from rat calvariae. Background: Previous studies showed beneficial effects of laser irradiation on bone-related cells. However, few studies have examined the gene expression alteration by laser irradiation on osteogenic cells in a calcified condition. Materials and methods: Osteogenic cells were prepared by culturing rat calvarial osteoblast-like cells in osteoinductive medium for 21 days. The cells at the bottom of the culture dish were irradiated with Er:YAG laser (wavelength: 2.94 μm, energy density: 3.1 and 8.2 J/cm2) positioned at distance of 25 cm. Lactate dehydrogenase (LDH) assay of the irradiated cells was performed. After screening for genes related to bone formation, mechanotransduction, and thermal effect by quantitative polymerase chain reaction (qPCR), gene expression at 3 h after 3.1 J/cm2 irradiation was comprehensively analyzed using microarray. Results: No dramatical increase in surface temperature and LDH activities after laser irradiation were observed. Sost expression was significantly reduced at 3 h after 3.1 J/cm2 irradiation. Bcar1 and Hspa1a expression was significantly increased following 8.2 J/cm2 irradiation. Microarray analysis identified 116 differentially expressed genes. Gene set enrichment analysis showed enrichment of histone H3-K9 methylation and modification gene sets. Conclusions: Er:YAG laser irradiation, especially at 3.1 J/cm2, showed positive effect on the expression of genes related to bone formation in osteogenic cells, without inducing significant cell damage. These findings may represent critical mechanisms of early bone formation after Er:YAG laser irradiation.
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Affiliation(s)
- Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Morita
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sumiko Yoshida
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroshi Kadokura
- Division of Endodontic and Operative Dentistry, Department of Restorative and Biomaterials Sciences, School of Dentistry, Meikai University, Saitama, Japan
| | - Satoshi Yokose
- Division of Endodontic and Operative Dentistry, Department of Restorative and Biomaterials Sciences, School of Dentistry, Meikai University, Saitama, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Mokhtari-Jafari F, Amoabediny G, Dehghan MM, Abbasi Ravasjani S, Jabbari Fakhr M, Zamani Y. Osteogenic and Angiogenic Synergy of Human Adipose Stem Cells and Human Umbilical Vein Endothelial Cells Cocultured in a Modified Perfusion Bioreactor. Organogenesis 2021; 17:56-71. [PMID: 34323661 DOI: 10.1080/15476278.2021.1954769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Synergistic promotion of angiogenesis and osteogenesis in bone tissue-engineered constructs remains a crucial clinical challenge, which might be overcome by simultaneous employment of superior techniques including coculture systems, differentiation-stimulated factors, combinatorial scaffolds and bioreactors.Current study investigated the effect of flow perfusion along with coculture of human adipose stem cells (hASCs) and human umbilical vein endothelial cells (HUVECs) on osteogenic and angiogenic differentiation.Pre-treated hASCs with 1,25-dihydroxyvitamin D3 were seeded onto poly(lactic-co-glycolic acid)/β-tricalcium phosphate/polycaprolactone (PLGA/β-TCP/PCL) scaffold with/without HUVECs, and cultured for 14 days within a flask or modified perfusion bioreactor. Analysis of osteogenic and angiogenic gene expression, alkaline phosphatase (ALP) activity and ALP staining indicates a synergistic effect of perfusion flow and coculture system on osteogenic and angiogenic differentiation. The advantage of modified perfusion bioreactor is its five-branch flow distributor which directly connect to the porous PCL hollow fibers embedded in the 3D scaffold to improve flow and flow-induced shear stress uniformity.Dynamic coculture increased VEGF165 by 6-fold, VEGF189 by 2-fold, and Endothelin-1 by 4-fold, relative to dynamic monoculture. Static coculture enhanced osteogenic and angiogenic differentiation, compared with static monoculture. Although dynamic coculture is in preference to static coculture due to significant increase in ALP activity and promoted angiogenic marker expression. Our finding is the first to indicate that the modified perfusion bioreactor combined with the beneficial cell-cell crosstalk in pre-treated hASC/HUVEC cocultures provides a synergy between osteogenic and angiogenic differentiation of the accumulation of cells, suggesting that it represents a promising approach for regeneration of critical-sized bone defects.
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Affiliation(s)
- Fatemeh Mokhtari-Jafari
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran.,Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
| | - Ghasem Amoabediny
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran.,Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Mehdi Dehghan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.,Institute of Biomedical Research, University of Tehran, Tehran, Iran
| | - Sonia Abbasi Ravasjani
- Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran.,Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Massoumeh Jabbari Fakhr
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.,Institute of Biomedical Research, University of Tehran, Tehran, Iran
| | - Yasaman Zamani
- Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran.,Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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Fu X, Feng Y, Shao B, Zhang Y. Taxifolin Protects Dental Pulp Stem Cells under Hypoxia and Inflammation Conditions. Cell Transplant 2021; 30:9636897211034452. [PMID: 34292054 PMCID: PMC8312191 DOI: 10.1177/09636897211034452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background: Dental pulp stem cells (DPSCs) are a unique source for future clinical application in dentistry such as periodontology or endodontics. However, DPSCs are prone to apoptosis under abnormal conditions. Taxifolin is a natural flavonoid and possesses many pharmacological activities including anti-hypoxic and anti-inflammatory. We aimed to elucidate the mechanisms of taxifolin protects DPSC under hypoxia and inflammatory conditions. Methods: DPSCs from human dental pulp tissue was purchased from Lonza (cat. no. PT-5025. Basel, Switzerland)) and identified by DPSC’s biomarkers. DPSC differentiation in vitro following the manufacturers’ instructions. ARS staining and Oil red staining verify the efficiency of differentiation in vitro after 2 weeks. The changes of various genes and proteins were identified by Q-PCR and western-blot, respectively. Cell viability was determined by the CCK-8 method, while apoptosis was determined by Annexin V/PI staining. Results: DPSC differentiation in vitro shows that hypoxia and TNF-α synergistically inhibit the survival and osteogenesis of DPSCs. A final concentration of 10 μM Taxifolin can significantly reduce the apoptosis of DPSCs under inflammation and hypoxia conditions. Taxifolin substantially increases carbonic anhydrase IX (CA9) expression but not HIF1a, and inhibitions of CA9 expression nullify the protective role of taxifolin under hypoxia and inflammatory condition. Conclusion: Taxifolin significantly increased the expression of CA9 when it inhibits DPSC apoptosis and taxifolin synergistically to protect DPSCs against apoptosis with CA9 under hypoxia and inflammatory conditions. Taxifolin can be used as a potential drug for clinical treatment of DPSC-related diseases.
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Affiliation(s)
- Xiaohui Fu
- Department of General Dentistry, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, P.R. China
| | - Yimiao Feng
- Department of Orthodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
| | - Bingyi Shao
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Yubei District, Chongqing, P. R. China
| | - Yanzhen Zhang
- Department of General Dentistry, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, P.R. China
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Dahlenburg H, Cameron D, Yang S, Bachman A, Pollock K, Cary W, Pham M, Hendrix K, White J, Nelson H, Deng P, Anderson JS, Fink K, Nolta J. A novel Huntington's disease mouse model to assess the role of neuroinflammation on disease progression and to develop human cell therapies. Stem Cells Transl Med 2021; 10:1033-1043. [PMID: 33710799 PMCID: PMC8235129 DOI: 10.1002/sctm.20-0431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 01/08/2021] [Accepted: 02/13/2021] [Indexed: 02/06/2023] Open
Abstract
Huntington's disease (HD) is a fatal autosomal-dominant neurodegenerative disease caused by a trinucleotide CAG repeat expansion of the huntingtin gene (HTT) that affects 1 in every 10 000 individuals in the United States. Our lab developed a novel immune deficient HD mouse strain, the YACNSG, from a commonly used line, the YAC128 mouse, to enable transplantation studies using engineered human cells in addition to studying the impact of the immune system on disease progression. The primary goal of this project was to characterize this novel immune deQficient HD mouse model, using behavioral assays and histology to compare this new model to the immune competent YAC128 and immune deficient mice that had engraftment of a human immune system. Flow cytometry was used to confirm that the YACNSG strain lacked immune cells, and in vivo imaging was used to assess human mesenchymal stem/stromal cell (MSC) retention compared with a commonly used immune deficient line, the NSG mouse. We found that YACNSG were able to retain human MSCs longer than the immune competent YAC128 mice. We performed behavioral assessments starting at 4 months of age and continued testing monthly until 12 months on the accelerod and in the open field. At 12 months, brains were isolated and evaluated using immunohistochemistry for striatal volume. Results from these studies suggest that the novel immune deficient YACNSG strain of mice could provide a good model for human stem-cell based therapies and that the immune system appears to play an important role in the pathology of HD.
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Affiliation(s)
- Heather Dahlenburg
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - David Cameron
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
- Department of NeurologyUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Sheng Yang
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Angelica Bachman
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Kari Pollock
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Whitney Cary
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Missy Pham
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Kyle Hendrix
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Jeannine White
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Haley Nelson
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Peter Deng
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
- Department of NeurologyUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Joseph S. Anderson
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Kyle Fink
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
- Department of NeurologyUniversity of California Davis HealthSacramentoCaliforniaUSA
| | - Jan Nolta
- Stem Cell Program and Institute for Regenerative CuresUniversity of California Davis HealthSacramentoCaliforniaUSA
- Department of Internal MedicineUniversity of California Davis HealthSacramentoCaliforniaUSA
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13
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The Gingiva from the Tissue Surrounding the Bone to the Tissue Regenerating the Bone: A Systematic Review of the Osteogenic Capacity of Gingival Mesenchymal Stem Cells in Preclinical Studies. Stem Cells Int 2021; 2021:6698100. [PMID: 34234830 PMCID: PMC8218920 DOI: 10.1155/2021/6698100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/20/2020] [Accepted: 05/21/2021] [Indexed: 12/13/2022] Open
Abstract
The current review aims to systematically assess the osteogenic capacity of gingiva-derived mesenchymal stem cells (GMSCs) in preclinical studies. A comprehensive electronic search of PubMed, Embase, Web of Science, and Scopus databases, as well as a manual search of relevant references, was performed in June 2020 without date or language restrictions. Eligibility criteria were the following: studies that compared mesenchymal stem cells (MSCs) derived from the gingiva with other MSC sources (in vitro or in vivo) or cell-free scaffold (in vivo) and studies that reported at least one of the following outcomes: osteogenic potential and new bone formation for in vitro and in vivo, respectively. Moreover, the assessment of included studies was conducted using appropriate guidelines. From 646 initial retrieved studies, 35 full-text articles were subjected to further screening and 26 studies were selected (20 in vitro studies and 6 in vivo studies). GMSCs showed great proliferation capacity and expressed recognized mesenchymal stem cell markers, particularly CD90. In vitro, MSC sources including GMSCs were capable of undergoing osteogenic differentiation with less ability in GMSCs, while most in vivo studies confirmed the capacity of GMSCs to regenerate bony defects. Concerning the assessment of methodological quality, in vitro studies met the relevant guideline except in five areas: the sample size calculation, randomization, allocation concealment, implementation, and blinding, and in vivo publications had probably low risk of bias in most domains except in three areas: allocation concealment, attrition, and blinding items.
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14
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Paduano F, Aiello E, Cooper PR, Marrelli B, Makeeva I, Islam M, Spagnuolo G, Maged D, De Vito D, Tatullo M. A Dedifferentiation Strategy to Enhance the Osteogenic Potential of Dental Derived Stem Cells. Front Cell Dev Biol 2021; 9:668558. [PMID: 34124050 PMCID: PMC8192975 DOI: 10.3389/fcell.2021.668558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/30/2021] [Indexed: 11/13/2022] Open
Abstract
Dental stem cells (DSCs) holds the ability to differentiate into numerous cell types. This property makes these cells particularly appropriate for therapeutic use in regenerative medicine. We report evidence that when DSCs undergo osteogenic differentiation, the osteoblast-like cells can be reverted back to a stem-like state and then further differentiated toward the osteogenic phenotype again, without gene manipulation. We have investigated two different MSCs types, both from dental tissues: dental follicle progenitor stem cells (DFPCs) and dental pulp stem cells (DPSCs). After osteogenic differentiation, both DFPCs and DPSCs can be reverted to a naïve stem cell-like status; importantly, dedifferentiated DSCs showed a greater potential to further differentiate toward the osteogenic phenotype. Our report aims to demonstrate for the first time that it is possible, under physiological conditions, to control the dedifferentiation of DSCs and that the rerouting of cell fate could potentially be used to enhance their osteogenic therapeutic potential. Significantly, this study first validates the use of dedifferentiated DSCs as an alternative source for bone tissue engineering.
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Affiliation(s)
- Francesco Paduano
- Stem Cells and Medical Genetics Units, Biomedical Section, Tecnologica Research Institute and Marrelli Health, Crotone, Italy
| | - Elisabetta Aiello
- Stem Cells and Medical Genetics Units, Biomedical Section, Tecnologica Research Institute and Marrelli Health, Crotone, Italy
| | - Paul Roy Cooper
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
| | - Benedetta Marrelli
- Stem Cells and Medical Genetics Units, Biomedical Section, Tecnologica Research Institute and Marrelli Health, Crotone, Italy
| | - Irina Makeeva
- Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Mohammad Islam
- Department of Oral Surgery and Medicine, The Dental School, University of Dundee, Dundee, United Kingdom
| | - Gianrico Spagnuolo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II," Naples, Italy
| | | | - Danila De Vito
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro," Bari, Italy
| | - Marco Tatullo
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro," Bari, Italy
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15
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Liu Y, He Y, He B, Kong L. The anti-osteoporosis effects of Vitamin K in postmenopausal women. Curr Stem Cell Res Ther 2021; 17:186-192. [PMID: 33982655 DOI: 10.2174/1574888x16666210512020103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 12/12/2020] [Accepted: 12/29/2020] [Indexed: 11/22/2022]
Abstract
As a common systemically muscular-skeleton disorder in aging, osteoporosis is characterized by the uninterrupted deconstruction in osseous microarchitecture. Osteoporosis can consequently lead to a significantly high risk of osteoporotic fractures, such as osteoporotic vertebral compressive fractures [OVCF] in the spine and osteoporotic femoral neck fractures, which can significantly increase the numbers of mortality and morbidity in aging people, especially in postmenopausal women. In addition, vitamin K has been demonstrated to play a key role in inhibiting osteoporotic fractures among postmenopausal women, but its long-term benefits, potential harms, and effects of the combination between vitamin K and other anti-osteoporosis medicines such as bisphosphonates or teriparatide were just extensively studied. Therefore, the present review aimed to systematically reviewed published literature on the role of vitamin K in the treatment of osteoporosis. We currently, via multiple queries strategy, searched the relevant literature in Cochrane and PubMed from January 2010 to December 2019. Subsequently, we conducteda systematic review according to the standard guideline of Preferred Reporting Item for Systematic Reviews and Meta-Analyses [PRISMA]. Finally, ten relevant works of literature met our current criteria for inclusion, and then we followed the PRISMA guideline and systematically reviewed each study by the categorized data sources and analytical approaches in each study, meanwhile set up variables and defined each study outcomes.
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Affiliation(s)
- Yuan Liu
- Honghui Hospital Affiliated to Xi Spine surgery, China
| | | | - Baorong He
- Honghui Hospital Affiliated to Xi Spine surgery, China
| | - Lingbo Kong
- Honghui Hospital Affiliated to Xi Spine surgery, China
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16
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Quiñones-Vico MI, Sanabria-de la Torre R, Sánchez-Díaz M, Sierra-Sánchez Á, Montero-Vílchez T, Fernández-González A, Arias-Santiago S. The Role of Exosomes Derived From Mesenchymal Stromal Cells in Dermatology. Front Cell Dev Biol 2021; 9:647012. [PMID: 33898436 PMCID: PMC8058372 DOI: 10.3389/fcell.2021.647012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
The skin is the largest organ of the human body and its main functions include providing protection from external harmful agents, regulating body temperature, and homeostatic maintenance. Skin injuries can damage this important barrier and its functions so research focuses on approaches to accelerate wound healing and treat inflammatory skin diseases. Due to their regenerative and immunomodulatory properties, mesenchymal stromal cells (MSCs) have been reported to play a significant role in skin repair and regeneration. However, it seems that the secretome of these cells and exosomes in particular may be responsible for their functions in skin regeneration and the immunomodulation field. The present review aims to gather the available information about the role of MSC-derived exosomes for both in vitro and in vivo models of different skin conditions and to highlight the need for further research in order to overcome any limitations for clinical translation.
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Affiliation(s)
- María I. Quiñones-Vico
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Granada, Spain
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Andalusian Network for the Design and Translation of Advanced Therapies, Seville, Spain
- Department of Dermatology, School of Medicine, University of Granada, Granada, Spain
| | - Raquel Sanabria-de la Torre
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Granada, Spain
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Andalusian Network for the Design and Translation of Advanced Therapies, Seville, Spain
| | - Manuel Sánchez-Díaz
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada, Spain
| | - Álvaro Sierra-Sánchez
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Granada, Spain
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Andalusian Network for the Design and Translation of Advanced Therapies, Seville, Spain
| | - Trinidad Montero-Vílchez
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada, Spain
| | - Ana Fernández-González
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Granada, Spain
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Andalusian Network for the Design and Translation of Advanced Therapies, Seville, Spain
| | - Salvador Arias-Santiago
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Granada, Spain
- Granada Biosanitary Research Institute (ibs. GRANADA), Granada, Spain
- Andalusian Network for the Design and Translation of Advanced Therapies, Seville, Spain
- Department of Dermatology, School of Medicine, University of Granada, Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada, Spain
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17
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Effendi MC, Taufiq A, Bachtiar BM, Bachtiar EW, Herda E. The role of NMT induction on odontogenic proliferation and differentiation of dental pulp stem cells. Heliyon 2021; 7:e06598. [PMID: 33937538 PMCID: PMC8079446 DOI: 10.1016/j.heliyon.2021.e06598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/29/2021] [Accepted: 03/23/2021] [Indexed: 11/28/2022] Open
Abstract
This study was conducted to investigate the odontogenic proliferation and differentiation of dental pulp stem cells (DPSCs) after induction by nanoparticle mineral trioxide (NMT). DPSCs were isolated from permanent teeth and placed in tubes containing Dulbecco's modified Eagle's medium, followed by immunocytochemistry analysis. The viability of DPSCs exposed to NMT was measured using MTT assay with trypan blue dye exclusion. Alkaline phosphatase (ALP) activity was evaluated using ALP colorimetric reactions by reacting NMT supernatants with fluorescent-specific ALP substrates. The concentration of osteocalcin was determined using an instant human osteocalcin enzyme-linked immunosorbent assay (ELISA) kit. A human dentin sialophosphoprotein (DSPP) ELISA kit coated with anti-human DSPP antibody was employed to measure DSPP levels. There was a significant difference between ALP activity after exposing the cells to NMT and trioxide mineral aggregate on days 3, 7, and 21. Osteocalcin activity showed a significant difference on days 3, 7, 14, and 21. There was a significant difference in DSPP levels on days 7 and 21. DPSCs exposed to NMT and to trioxide mineral aggregate showed extracellular matrix formation on day 7 and 14, respectively. Furthermore, NMT may effectively increase the proliferation and differentiation of DPSCs as well as their maturation toward odontoblasts.
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Affiliation(s)
- Muhammad Chair Effendi
- Department of Pediatric Dentistry, Faculty of Dentistry, Universitas Brawijaya, Indonesia
| | - Ahmad Taufiq
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Indonesia
| | - Boy Muchlis Bachtiar
- Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Indonesia
| | | | - Ellyza Herda
- Department of Dental Materials, Faculty of Dentistry, Universitas Indonesia, Indonesia
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18
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Shariati L, Esmaeili Y, Javanmard SH, Bidram E, Amini A. Organoid Technology: Current Standing and Future Perspectives. STEM CELLS (DAYTON, OHIO) 2021; 39:1625-1649. [PMID: 33786925 DOI: 10.1002/stem.3379] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/01/2021] [Indexed: 11/12/2022]
Abstract
Organoids are powerful systems to facilitate the study of individuals' disorders and personalized treatments. Likewise, emerging this technology has improved the chance of translatability of drugs for pre-clinical therapies and mimicking the complexity of organs, while it proposes numerous approaches for human disease modeling, tissue engineering, drug development, diagnosis, and regenerative medicine. In this review, we outline the past/present organoid technology and summarize its faithful applications, then, we discuss the challenges and limitations encountered by 3D organoids. In the end, we offer the human organoids as basic mechanistic infrastructure for "human modelling" systems to prescribe personalized medicines. © AlphaMed Press 2021 SIGNIFICANCE STATEMENT: This concise review concerns about organoids, available methods for in vitro organoid formation and different types of human organoid models. We, then, summarize biological approaches to improve 3D organoids complexity and therapeutic potentials of organoids. Despite the existing incomprehensive review articles in literature that examine partial aspects of the organoid technology, the present review article comprehensively and critically presents this technology from different aspects. It effectively provides a systematic overview on the past and current applications of organoids and discusses the future perspectives and suggestions to improve this technology and its applications.
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Affiliation(s)
- Laleh Shariati
- Applied Physiology Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Yasaman Esmaeili
- Biosensor Research Center, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shaghayegh Haghjooy Javanmard
- Applied Physiology Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Bidram
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Biosensor Research Center, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abbas Amini
- Department of Mechanical Engineering, Australian College of Kuwait, Mishref, Safat, Kuwait.,Centre for Infrastructure Engineering, Western Sydney University, Penrith, NSW, Australia
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19
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Li J, Wang S, Dong Y. Regeneration of pulp-dentine complex-like tissue in a rat experimental model under an inflammatory microenvironment using high phosphorous-containing bioactive glasses. Int Endod J 2021; 54:1129-1141. [PMID: 33657647 DOI: 10.1111/iej.13505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 02/23/2021] [Accepted: 03/01/2021] [Indexed: 12/30/2022]
Abstract
AIM To investigate the effects of a bioactive glass with a high proportion of phosphorus (BG-hP) on the repair and regeneration of dental pulps in rats under an inflammatory microenvironment. METHODOLOGY Human dental pulp cells (hDPCs) stimulated with 1 μg mL-1 lipopolysaccharide (LPS) were co-cultured with 0.1 mg mL-1 BG-hP. Cell proliferation was detected by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyltetrazolium bromide (MTT) assays. The expression of inflammation-related genes and odontogenic differentiation-related genes was determined by real-time PCR. Alizarin red staining was used to detect the formation of mineralized nodules. Coronal pulp tissues of rat molars were stimulated with 10 mg mL-1 LPS and then treated with BG-hP. The expression of inflammation-related genes in pulp tissue was determined by real-time PCR. Haematoxylin-eosin staining and Masson staining were performed to observe the inflammatory response and mineralized matrix formation, after subcutaneous implantation in nude mice, at 3 days and 4 weeks, respectively. Analysis of variance was performed to measure statistical significance (P < 0.05). RESULTS BG-hP significantly reduced expression of interleukin-6 (IL-6) and IL-8 and significantly upregulated the expression of IL-10, IL-4 and transforming growth factor-β1 of the LPS-stimulated hDPCs (P < 0.05). BG-hP significantly inhibited the initial cell number (P < 0.05), but the hDPCs stimulated by LPS and co-cultured with BG-hP maintained the same proliferation rate as the untreated hDPCs. BG-hP significantly promoted the expression of dentine matrix protein-1 and dentine sialophosphoprotein and the mineralization capacity of the LPS-stimulated hDPCs (P < 0.05). Furthermore, BG-hP significantly downregulated the expression of Il-6 and reduced the inflammatory response of the LPS-stimulated pulp tissue 3 days after subcutaneous implantation (P < 0.05). Four weeks after subcutaneous implantation, BG-hP induced the formation of a continuous layer of dentine-like structure with dentinal tubules and polarizing odontoblast-like cells aligned along it in the LPS-stimulated pulp tissue. CONCLUSION The present preliminarily results demonstrated that the bioactive glass with a high proportion of phosphorus inhibited the inflammatory response and promoted the formation of a pulp-dentine complex in a rat experimental model. This study provides a foundation for the construction of materials with the dual functions of exerting anti-inflammatory effects and promoting tissue regeneration to meet the needs of dental pulp repair and regeneration.
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Affiliation(s)
- J Li
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - S Wang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Dong
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, China
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20
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Migliorini E, Cavalcanti-Adam EA, Uva AE, Fiorentino M, Gattullo M, Manghisi VM, Vaiani L, Boccaccio A. Nanoindentation of mesenchymal stem cells using atomic force microscopy: effect of adhesive cell-substrate structures. NANOTECHNOLOGY 2021; 32:215706. [PMID: 33596559 DOI: 10.1088/1361-6528/abe748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
The procedure commonly adopted to characterize cell materials using atomic force microscopy neglects the stress state induced in the cell by the adhesion structures that anchor it to the substrate. In several studies, the cell is considered as made from a single material and no specific information is provided regarding the mechanical properties of subcellular components. Here we present an optimization algorithm to determine separately the material properties of subcellular components of mesenchymal stem cells subjected to nanoindentation measurements. We assess how these properties change if the adhesion structures at the cell-substrate interface are considered or not in the algorithm. In particular, among the adhesion structures, the focal adhesions and the stress fibers were simulated. We found that neglecting the adhesion structures leads to underestimate the cell mechanical properties thus making errors up to 15%. This result leads us to conclude that the action of adhesion structures should be taken into account in nanoindentation measurements especially for cells that include a large number of adhesions to the substrate.
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Affiliation(s)
| | - Elisabetta Ada Cavalcanti-Adam
- Max Planck Institute for Medical Research, D-69120 Heidelberg, Germany
- Heidelberg University, D-69120 Heidelberg, Germany
| | - Antonio Emmanuele Uva
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
| | - Michele Fiorentino
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
| | - Michele Gattullo
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
| | - Vito Modesto Manghisi
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
| | - Lorenzo Vaiani
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
| | - Antonio Boccaccio
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy
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21
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Human Chondrocytes from Human Adipose Tissue-Derived Mesenchymal Stem Cells Seeded on a Dermal-Derived Collagen Matrix Sheet: Our Preliminary Results for a Ready to Go Biotechnological Cartilage Graft in Clinical Practice. Stem Cells Int 2021; 2021:6664697. [PMID: 33679990 PMCID: PMC7929680 DOI: 10.1155/2021/6664697] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/16/2020] [Accepted: 02/06/2021] [Indexed: 12/15/2022] Open
Abstract
Background The articular cartilage is unique in that it contains only a single type of cell and shows poor ability for spontaneous healing. Cartilage tissue engineering which uses mesenchymal stem cells (MSCs) and adipose tissue-derived mesenchymal stem cells (AT-MSCs) is considered an attractive treatment for cartilage lesions and osteoarthritis. The establishment of cartilage regenerative medicine is an important clinical issue, but the search for cell sources able to restore cartilage integrity proves to be challenging. The aim of this study was to create cartilage grafts from the combination of AT-MSCs and collagen substrates. Methods Mesenchymal stem cells were obtained from human donors' adipose tissue, and collagen scaffold, obtained from human skin and cleaned from blood vessels, adipose tissues, and debris, which only preserve dermis and epidermis, were seeded and cultured on collagen substrates and differentiated to chondrocytes. The obtained chondrocyte extracellular matrix of cartilage was then evaluated for the expression of chondrocyte-/cartilage-specific markers, the Cartilage Oligomeric Matrix Protein (COMP), collagen X, alpha-1 polypeptide (COL10A1), and the Collagen II, Human Tagged ORF Clone (COL2A1) by using the reverse transcription polymerase chain reaction (RT-PCR). Results Our findings have shown that the dermal collagen may exert important effects on the quality of in vitro expanded chondrocytes, leading in this way that the influence of collagen skin matrix helps to produce highly active and functional chondrocytes for long-term cartilage tissue regeneration. Conclusion This research opens up the possibility of generating cartilage grafts with the precise purpose of improving the existing limitation in current clinical procedures.
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22
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Al-Qadhi G, Al-Rai S, Hafed L. The Therapeutic Potential of Inflamed Gingiva-Derived Mesenchymal Stem Cells in Preclinical Studies: A Scoping Review of a Unique Biomedical Waste. Stem Cells Int 2021; 2021:6619170. [PMID: 33628266 PMCID: PMC7889391 DOI: 10.1155/2021/6619170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/08/2021] [Accepted: 01/27/2021] [Indexed: 11/17/2022] Open
Abstract
Searching for considerable abundance, simple, and accessible sources in stem cell-based therapy opens the door for isolation of a new population of oral/dental stem cells known as inflamed gingiva-derived mesenchymal stem cells, which have recently come to light with promising therapeutic potential in tissue regenerative therapy. Following the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews guidelines, this scoping review is aimed at highlighting the possible therapeutic potential of inflamed gingiva-derived mesenchymal stem cells in preclinical studies carried out to date and presenting the current evidence depends upon their comparison to the healthy gingiva-derived mesenchymal stem cells or other mesenchymal stem cell sources. A comprehensive electronic search using (PubMed, Embase, Scopus, and Web of Science) databases and a manual search of relevant references were conducted until June 2020. Included studies were assessed using a combination tool, including the guidelines for reporting preclinical in vitro studies on dental materials, which were based on the modification of the Consolidated Standards of Reporting Trial checklist and the guidelines for animal research: reporting of in vivo experiments. The initial research provided 360 articles, with 13 articles that met the inclusion criteria. While most of the included studies lacked randomization, blinding, and sample size calculation, they were designed accurately in other aspects of the guidelines. The results of this scoping review indicated that inflamed gingiva-derived mesenchymal stem cells could be effective in terms of osteogenic differentiation, collagen fiber formation, immunoregulation, migration capacity, and testing of dental material and may present a reliable alternative source for healthy gingiva-derived mesenchymal stem cells.
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Affiliation(s)
- Gamilah Al-Qadhi
- Department of Basic Dental Sciences, Faculty of Dentistry, University of Science and Technology, Yemen
| | - Sarah Al-Rai
- Department of Conservative and Preventive Dentistry, Faculty of Dentistry, Saba University, Yemen
| | - Layla Hafed
- Department of Oral Pathology, Faculty of Oral and Dental Medicine, Ahram Canadian University, Giza, Egypt
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Enhancing the Therapeutic Potential of Mesenchymal Stem Cells with Light-Emitting Diode: Implications and Molecular Mechanisms. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6663539. [PMID: 33623634 PMCID: PMC7875639 DOI: 10.1155/2021/6663539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/05/2021] [Accepted: 01/22/2021] [Indexed: 01/08/2023]
Abstract
This study evaluated the effects of light-emitting diode (LED) on mesenchymal stem cells (MSCs). An electronic search was conducted in PubMed/MEDLINE, Scopus, and Web of Science database for articles published from 1980 to February 2020. Ten articles met the search criteria and were included in this review. The risk of bias was evaluated to report quality, safety, and environmental standards. MSCs were derived from adipose tissue, bone marrow, dental pulp, gingiva, and umbilical cord. Protocols for cellular irradiation used red and blue light spectrum with variations of the parameters. The LED has been shown to induce greater cellular viability, proliferation, differentiation, and secretion of growth factors. The set of information available leads to proposing a complex signaling cascade for the action of photobiomodulation, including angiogenic factors, singlet oxygen, mitogen-activated protein kinase/extracellular signal-regulated protein kinase, Janus kinase/signal transducer, and reactive oxygen species. In conclusion, although our results suggest that LED can boost MSCs, a nonuniformity in the experimental protocol, bias, and the limited number of studies reduces the power of systematic review. Further research is essential to find the optimal LED irradiation parameters to boost MSCs function and evaluate its impact in the clinical setting.
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24
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Hatzmann FM, Ejaz A, Wiegers GJ, Mandl M, Brucker C, Lechner S, Rauchenwald T, Zwierzina M, Baumgarten S, Wagner S, Mattesich M, Waldegger P, Pierer G, Zwerschke W. Quiescence, Stemness and Adipogenic Differentiation Capacity in Human DLK1 -/CD34 +/CD24 + Adipose Stem/Progenitor Cells. Cells 2021; 10:cells10020214. [PMID: 33498986 PMCID: PMC7912596 DOI: 10.3390/cells10020214] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/13/2021] [Accepted: 01/16/2021] [Indexed: 12/26/2022] Open
Abstract
We explore the status of quiescence, stemness and adipogenic differentiation capacity in adipose stem/progenitor cells (ASCs) ex vivo, immediately after isolation from human subcutaneous white adipose tissue, by sorting the stromal vascular fraction into cell-surface DLK1+/CD34−, DLK1+/CD34dim and DLK1−/CD34+ cells. We demonstrate that DLK1−/CD34+ cells, the only population exhibiting proliferative and adipogenic capacity, express ex vivo the bonafide quiescence markers p21Cip1, p27Kip1 and p57Kip2 but neither proliferation markers nor the senescence marker p16Ink4a. The pluripotency markers NANOG, SOX2 and OCT4 are barely detectable in ex vivo ASCs while the somatic stemness factors, c-MYC and KLF4 and the early adipogenic factor C/EBPβ are highly expressed. Further sorting of ASCs into DLK1−/CD34+/CD24− and DLK1−/CD34+/CD24+ fractions shows that KLF4 and c-MYC are higher expressed in DLK1−/CD34+/CD24+ cells correlating with higher colony formation capacity and considerably lower adipogenic activity. Proliferation capacity is similar in both populations. Next, we show that ASCs routinely isolated by plastic-adherence are DLK1−/CD34+/CD24+. Intriguingly, CD24 knock-down in these cells reduces proliferation and adipogenesis. In conclusion, DLK1−/CD34+ ASCs in human sWAT exist in a quiescent state, express high levels of somatic stemness factors and the early adipogenic transcription factor C/EBPβ but senescence and pluripotency markers are barely detectable. Moreover, our data indicate that CD24 is necessary for adequate ASC proliferation and adipogenesis and that stemness is higher and adipogenic capacity lower in DLK1−/CD34+/CD24+ relative to DLK1−/CD34+/CD24− subpopulations.
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Affiliation(s)
- Florian M. Hatzmann
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Asim Ejaz
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Department of Plastic Surgery, University of Pittsburgh Medical Center, 3550 Terrace Street, 6B Scaife Hall, Pittsburgh, PA 15261, USA
| | - G. Jan Wiegers
- Division of Developmental Immunology, Biocenter, Medical University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria;
| | - Markus Mandl
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Camille Brucker
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Stefan Lechner
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
| | - Tina Rauchenwald
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria; (T.R.); (M.Z.); (M.M.); (G.P.)
| | - Marit Zwierzina
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria; (T.R.); (M.Z.); (M.M.); (G.P.)
| | - Saphira Baumgarten
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
| | - Sonja Wagner
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
| | - Monika Mattesich
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria; (T.R.); (M.Z.); (M.M.); (G.P.)
| | - Petra Waldegger
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Gerhard Pierer
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria; (T.R.); (M.Z.); (M.M.); (G.P.)
| | - Werner Zwerschke
- Division of Cell Metabolism and Differentiation Research, Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria; (F.M.H.); (A.E.); (M.M.); (C.B.); (S.L.); (S.B.); (S.W.); (P.W.)
- Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
- Correspondence: ; Tel.: +43-512-507508-32; Fax: +43-512-507508-99
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Exosome-Derived Noncoding RNAs as a Promising Treatment of Bone Regeneration. Stem Cells Int 2021; 2021:6696894. [PMID: 33542737 PMCID: PMC7843188 DOI: 10.1155/2021/6696894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/18/2020] [Accepted: 01/07/2021] [Indexed: 02/05/2023] Open
Abstract
The reconstruction of large bone defects remains a crucial challenge in orthopedic surgery. The current treatments including autologous and allogenic bone grafting and bioactive materials have their respective drawbacks. While mesenchymal stem cell (MSC) therapy may address these limitations, growing researches have demonstrated that the effectiveness of MSC therapy depends on paracrine factors, particularly exosomes. This aroused great focus on the exosome-based cell-free therapy in the treatment of bone defects. Exosomes can transfer various cargoes, and noncoding RNAs are the most widely studied cargo through which exosomes exert their ability of osteoinduction. Here, we review the research status of the exosome-derived noncoding RNAs in bone regeneration, the potential application of exosomes, and the existing challenges.
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Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats. Stem Cells Int 2021; 2021:8819884. [PMID: 33531911 PMCID: PMC7834821 DOI: 10.1155/2021/8819884] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 01/01/2021] [Accepted: 01/07/2021] [Indexed: 12/12/2022] Open
Abstract
Trigeminal neuralgia is an incurable progressive nervous system disease that can last for several months or years. Stem cells from human exfoliated deciduous teeth (SHED) are a candidate source for cell-based therapy. Owing to their neuroprotective and immunomodulatory effects, these neural crest cells have potential roles in mediating chronic pain. In this study, we established a rat model of chronic constriction injury of the infraorbital nerve (CCI-ION) to evaluate the analgesic effect of SHED in neuropathic pain. The effects of local SHED transplantation on inflammatory cell infiltration in the trigeminal nerve were investigated based on hematoxylin and eosin staining. The levels of proinflammatory factors in the injured nerve and transient receptor potential vanilloid type 1 (TRPV1) expression in the trigeminal nerve and ganglion were quantified. The data showed that systemic or local injection of SHED attenuated the sensitivity of rats to mechanical stimuli after nerve injury, and this effect lasted throughout the observation period of 8 weeks. PKH26-labeled SHED were distributed to the ipsilateral trigeminal ganglions 24 and 72 hours after local injection. SHED transplantation at the lesion site led to reduced inflammatory cell infiltration and proinflammatory cytokine levels in the injured nerve and inhibited CCI-ION-induced upregulation of TRPV1 expression in the trigeminal nerve and ganglion in the early phase. Therefore, these results provide preclinical evidence that supports the use of SHED in the treatment of trigeminal neuralgia and potentially other chronic pain conditions.
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Zheng X, Hermann DM, Bähr M, Doeppner TR. The role of small extracellular vesicles in cerebral and myocardial ischemia-Molecular signals, treatment targets, and future clinical translation. Stem Cells 2021; 39:403-413. [PMID: 33432732 DOI: 10.1002/stem.3329] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 12/09/2020] [Accepted: 12/13/2020] [Indexed: 12/17/2022]
Abstract
The heart and the brain mutually interact with each other, forming a functional axis that is disturbed under conditions of ischemia. Stem cell-derived extracellular vesicles (EVs) show great potential for the treatment of ischemic stroke and myocardial infarction. Due to heart-brain interactions, therapeutic actions of EVs in the brain and the heart cannot be regarded in an isolated way. Effects in each of the two organs reciprocally influence the outcome of the other. Stem cell-derived EVs modulate a large number of signaling pathways in both tissues. Upon ischemia, EVs prevent delayed injury, promote angiogenesis, enhance parenchymal remodeling, and enable functional tissue recovery. The therapeutic effects greatly depend on EV cargos, among which are noncoding RNAs like microRNAs (miRNAs) and proteins, which modulate cell signaling in a differential way that not always corresponds to each other in the two tissues. Interestingly, the same miRNA or protein localized in EVs can modulate different signaling pathways in the ischemic heart and brain, which may have diverse consequences for disease outcomes. Paying careful attention to unveiling these underlying mechanisms may provide new insights into tissue remodeling processes and identify targets for ischemic stroke and myocardial infarction therapies. Some of these mechanisms are discussed in this concise review, and consequences for the clinical translation of EVs are presented.
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Affiliation(s)
- Xuan Zheng
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Dirk M Hermann
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Mathias Bähr
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Thorsten R Doeppner
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
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Antimicrobial Effects of Essential Oils on Oral Microbiota Biofilms: The Toothbrush In Vitro Model. Antibiotics (Basel) 2020; 10:antibiotics10010021. [PMID: 33383788 PMCID: PMC7823584 DOI: 10.3390/antibiotics10010021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/12/2020] [Accepted: 12/23/2020] [Indexed: 01/17/2023] Open
Abstract
The present investigation intended to evaluate the bacteriostatic and bactericidal abilities of clove, oregano and thyme essential oils against oral bacteria in planktonic and biofilm states. Furthermore, aiming to mimic everyday conditions, a toothbrush in vitro model was developed. Determination of the minimum inhibitory concentration, minimum bactericidal concentration, minimum biofilm inhibitory concentration and minimum biofilm eradication concentration were achieved using the microdilution procedure. To simulate the toothbrush environment, nylon fibers were inoculated with oral bacteria, which, after incubation to allow biofilm development, were submitted to contact with the essential oils under study. Thyme and oregano essential oils revealed promising antimicrobial effects, both in growth inhibition and the destruction of cells in planktonic and biofilm states, while clove essential oil showed a weaker potential. Regarding the toothbrush in vitro model, observation of the nylon fibers under a magnifying glass proved the essential oil anti-biofilm properties. Considering the effects observed using the in vitro toothbrush model, a realistic approximation to oral biofilm establishment in an everyday use object, a putative application of essential oils as toothbrush sanitizers to help prevent the establishment of bacterial biofilm can be verified.
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Stem Cells in the Treatment of Neuropathic Pain: Research Progress of Mechanism. Stem Cells Int 2020; 2020:8861251. [PMID: 33456473 PMCID: PMC7785341 DOI: 10.1155/2020/8861251] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023] Open
Abstract
Neuropathic pain (NP) is pain caused by somatosensory nervous system injury or disease. Its prominent symptoms are spontaneous pain, hyperalgesia, and allodynia, and the sense of pain is extremely strong. Owing to the complex mechanism, conventional painkillers lack effectiveness. Recently, research on the treatment of NP by stem cells is increasing and promising results have been achieved in preclinical research. In this review, we briefly introduce the neuropathic pain, the current treatment strategy, and the development of stem cell therapy, and we collected the experimental and clinical trial articles of many kinds of stem cells in the treatment of neuropathic pain from the past ten years. We analyzed and summarized the general efficacy and mechanism of stem cells in the treatment of neuropathic pain. We found that the multiple-mechanism approach was different from the single mechanism of routine clinical drugs; stem cells play a role in peripheral mechanism, central mechanism, and disinhibition of spinal cord level that lead to neuropathic pain, so they are more effective in analgesia and treatment of neuropathic pain.
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Santonocito S, Polizzi A, De Pasquale R, Ronsivalle V, Lo Giudice A, Isola G. Analysis of the Efficacy of Two Treatment Protocols for Patients with Symptomatic Oral Lichen Planus: A Randomized Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 18:E56. [PMID: 33374791 PMCID: PMC7794703 DOI: 10.3390/ijerph18010056] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023]
Abstract
Oral lichen planus (OLP) is a chronic, inflammatory, immune-mediated disease, which can alter the quality of life of patients. The aim of this randomized clinical trial was to compare the therapeutic efficacy of clobetasol oral gel 0.05% versus an anti-inflammatory in oral solution (mouthwash) in the management of patients suffering from symptomatic OLP. The secondary objective was to analyze which one of the two treatments induced a greater risk of developing side effects. Forty patients were assigned (20 patients for group), through a randomized design, to receive clobetasol gel 0.05% or an anti-inflammatory mouthwash, which contains calcium hydroxide, hyaluronic acid, umbelliferone and oligomeric pro-anthocyanidins) for three months. At baseline (T0) and after 3 months (T1), patients underwent dental and dermatological examinations to assess their symptoms (Numerical Pain Scale (NRS) score) and signs (Thongprasom score). Data were calculated using T-test for the dependent variable, Wilcoxon test and Mann-Whitney u test. Both clobetasol and anti-inflammatory resulted in a statistically significant reduction of signs, (p < 0.001 and p = 0.02, respectively) and symptoms (p < 0.001 for clobetasol and p = 0.02 for anti-inflammatory). In conclusion, the results evidenced that, compared to clobetasol, the anti-inflammatory was less effective in determining the reduction of signs and symptom in OLP patients.
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Affiliation(s)
- Simona Santonocito
- Department of General Surgery and Surgical-Medical Specialties, Unit of Oral Pathology, School of Dentistry, University of Catania, 95124 Catania, Italy; (S.S.); (A.P.); (V.R.); (A.L.G.)
| | - Alessandro Polizzi
- Department of General Surgery and Surgical-Medical Specialties, Unit of Oral Pathology, School of Dentistry, University of Catania, 95124 Catania, Italy; (S.S.); (A.P.); (V.R.); (A.L.G.)
| | - Rocco De Pasquale
- Department of General Surgery and Surgical-Medical Specialties, Unit of Dermatology, University of Catania, 95124 Catania, Italy;
| | - Vincenzo Ronsivalle
- Department of General Surgery and Surgical-Medical Specialties, Unit of Oral Pathology, School of Dentistry, University of Catania, 95124 Catania, Italy; (S.S.); (A.P.); (V.R.); (A.L.G.)
| | - Antonino Lo Giudice
- Department of General Surgery and Surgical-Medical Specialties, Unit of Oral Pathology, School of Dentistry, University of Catania, 95124 Catania, Italy; (S.S.); (A.P.); (V.R.); (A.L.G.)
| | - Gaetano Isola
- Department of General Surgery and Surgical-Medical Specialties, Unit of Oral Pathology, School of Dentistry, University of Catania, 95124 Catania, Italy; (S.S.); (A.P.); (V.R.); (A.L.G.)
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Biocompatibility and Immune Response of a Newly Developed Volume-Stable Magnesium-Based Barrier Membrane in Combination with a PVD Coating for Guided Bone Regeneration (GBR). Biomedicines 2020; 8:biomedicines8120636. [PMID: 33419327 PMCID: PMC7767206 DOI: 10.3390/biomedicines8120636] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/13/2020] [Accepted: 12/18/2020] [Indexed: 02/08/2023] Open
Abstract
To date, there are no bioresorbable alternatives to non-resorbable and volume-stable membranes in the field of dentistry for guided bone or tissue regeneration (GBR/GTR). Even magnesium (Mg) has been shown to constitute a favorable biomaterial for the development of stabilizing structures. However, it has been described that it is necessary to prevent premature degradation to ensure both the functionality and the biocompatibility of such Mg implants. Different coating strategies have already been developed, but most of them did not provide the desired functionality. The present study analyses a new approach based on ion implantation (II) with PVD coating for the passivation of a newly developed Mg membrane for GBR/GTR procedures. To demonstrate comprehensive biocompatibility and successful passivation of the Mg membranes, untreated Mg (MG) and coated Mg (MG-Co) were investigated in vitro and in vivo. Thereby a collagen membrane with an already shown biocompatibility was used as control material. All investigations were performed according to EN ISO 10993 regulations. The in vitro results showed that both the untreated and PVD-coated membranes were not cytocompatible. However, both membrane types fulfilled the requirements for in vivo biocompatibility. Interestingly, the PVD coating did not have an influence on the gas cavity formation compared to the uncoated membrane, but it induced lower numbers of anti-inflammatory macrophages in comparison to the pure Mg membrane and the collagen membrane. In contrast, the pure Mg membrane provoked an immune response that was fully comparable to the collagen membrane. Altogether, this study shows that pure magnesium membranes represent a promising alternative compared to the nonresorbable volume-stable materials for GBR/GTR therapy.
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Lin YJ, Lee YW, Chang CW, Huang CC. 3D Spheroids of Umbilical Cord Blood MSC-Derived Schwann Cells Promote Peripheral Nerve Regeneration. Front Cell Dev Biol 2020; 8:604946. [PMID: 33392194 PMCID: PMC7773632 DOI: 10.3389/fcell.2020.604946] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022] Open
Abstract
Schwann cells (SCs) are promising candidates for cell therapy due to their ability to promote peripheral nerve regeneration. However, SC-based therapies are hindered by the lack of a clinically renewable source of SCs. In this study, using a well-defined non-genetic approach, umbilical cord blood mesenchymal stem cells (cbMSCs), a clinically applicable cell type, were phenotypically, epigenetically, and functionally converted into SC-like cells (SCLCs) that stimulated effective sprouting of neuritic processes from neuronal cells. To further enhance their therapeutic capability, the cbMSC-derived SCLCs were assembled into three-dimensional (3D) cell spheroids by using a methylcellulose hydrogel system. The cell-cell and cell-extracellular matrix interactions were well-preserved within the formed 3D SCLC spheroids, and marked increases in neurotrophic, proangiogenic and anti-apoptotic factors were detected compared with cells that were harvested using conventional trypsin-based methods, demonstrating the superior advantage of SCLCs assembled into 3D spheroids. Transplantation of 3D SCLC spheroids into crush-injured rat sciatic nerves effectively promoted the recovery of motor function and enhanced nerve structure regeneration. In summary, by simply assembling cells into a 3D-spheroid conformation, the therapeutic potential of SCLCs derived from clinically available cbMSCs for promoting nerve regeneration was enhanced significantly. Thus, these cells hold great potential for translation to clinical applications for treating peripheral nerve injury.
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Affiliation(s)
- Yu-Jie Lin
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Yun-Wei Lee
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Che-Wei Chang
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan.,Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Chieh-Cheng Huang
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
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Dentin Bond Integrity of Hydroxyapatite Containing Resin Adhesive Enhanced with Graphene Oxide Nano-Particles-An SEM, EDX, Micro-Raman, and Microtensile Bond Strength Study. Polymers (Basel) 2020; 12:polym12122978. [PMID: 33327410 PMCID: PMC7764838 DOI: 10.3390/polym12122978] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022] Open
Abstract
The aim was to synthesize and characterize an adhesive incorporating HA and GO nanoparticles. Techniques including scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), micro-tensile bond strength (μTBS), and micro-Raman spectroscopy were employed to investigate bond durability, presence of nanoparticles inside adhesive, and dentin interaction. Control experimental adhesive (CEA) was synthesized with 5 wt% HA. GO particles were fabricated and added to CEA at 0.5 wt% (HA-GO-0.5%) and 2 wt% GO (HA-GO-2%). Teeth were prepared to produce bonded specimens using the three adhesive bonding agents for assessment of μTBS, with and without thermocycling (TC). The adhesives were applied twice on the dentin with a micro-brush followed by air thinning and photo-polymerization. The HA and GO nanoparticles demonstrated uniform dispersion inside adhesive. Resin tags with varying depths were observed on SEM micrographs. The EDX mapping revealed the presence of carbon (C), calcium (Ca), and phosphorus (P) in the two GO adhesives. For both TC and NTC samples, HA-GO-2% had higher μTBS and durability, followed by HA-GO-0.5%. The representative micro-Raman spectra demonstrated D and G bands for nano-GO particles containing adhesives. HA-GO-2% group demonstrated uniform diffusion in adhesive, higher μTBS, adequate durability, and comparable resin tag development to controls.
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Characterization of Odontogenic Differentiation from Human Dental Pulp Stem Cells Using TMT-Based Proteomic Analysis. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3871496. [PMID: 33490242 PMCID: PMC7789479 DOI: 10.1155/2020/3871496] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 01/09/2023]
Abstract
Background The repair of dental pulp injury relies on the odontogenic differentiation of dental pulp stem cells (DPSCs). To better understand the odontogenic differentiation of DPSCs and identify proteins involved in this process, tandem mass tags (TMTs) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) were applied to compare the proteomic profiles of induced and control DPSCs. Methods The proteins expressed during osteogenic differentiation of human DPSCs were profiled using the TMT method combined with LC-MS/MS analysis. The identified proteins were subjected to Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Then, a protein-protein interaction (PPI) network was constructed. Two selected proteins were confirmed by western blotting (WB) analysis. Results A total of 223 proteins that were differentially expressed were identified. Among them, 152 proteins were significantly upregulated and 71 were downregulated in the odontogenic differentiation group compared with the control group. On the basis of biological processes in GO, the identified proteins were mainly involved in cellular processes, metabolic processes, and biological regulation, which are connected with the signaling pathways highlighted by KEGG pathway analysis. PPI networks showed that most of the differentially expressed proteins were implicated in physical or functional interaction. The protein expression levels of FBN1 and TGF-β2 validated by WB were consistent with the proteomic analysis. Conclusions This is the first proteomic analysis of human DPSC odontogenesis using a TMT method. We identified many new differentially expressed proteins that are potential targets for pulp-dentin complex regeneration and repair.
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Schirinzi A, Cazzolla AP, Lovero R, Lo Muzio L, Testa NF, Ciavarella D, Palmieri G, Pozzessere P, Procacci V, Di Serio F, Santacroce L. New Insights in Laboratory Testing for COVID-19 Patients: Looking for the Role and Predictive Value of Human epididymis secretory protein 4 (HE4) and the Innate Immunity of the Oral Cavity and Respiratory Tract. Microorganisms 2020; 8:E1718. [PMID: 33147871 PMCID: PMC7692217 DOI: 10.3390/microorganisms8111718] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/23/2020] [Accepted: 10/30/2020] [Indexed: 12/15/2022] Open
Abstract
COVID-19 is a viral pandemic caused by the new coronavirus SARS-CoV-2, an enveloped positive stranded RNA virus. The mechanisms of innate immunity, considered as the first line of antiviral defense, is essential towards viruses. A significant role in host defense of the lung, nasal and oral cavities is played by Human epididymis secretory protein 4 (HE4) HE4 has been demonstrated to be serum inflammatory biomarker and to show a role in natural immunity at the level of oral cavity, nasopharynx and respiratory tract with both antimicrobial/antiviral and anti-inflammatory activity. Several biomarkers like IL-6, presepsin (PSP), procalcitonin (PCT), CRP, D-Dimer have showed a good function as predictor factors for the clinical evolution of COVID-19 patients (mild, severe and critical). The aim of this study was to correlate the blood levels of CRP, IL-6, PSP, PCT, D-Dimer with He4, to identify the predictive values of these biomarkers for the evolution of the disease and to evaluate the possible role of HE4 in the defense mechanisms of innate immunity at the level of oral cavity, nasopharynx and respiratory tract. Of 134 patients admitted at COVID hospital of Policlinico-University of Bari, 86 (58 men age 67.6 ± 12.4 and 28 women age 65.7 ± 15.4) fulfilled the inclusion criteria: in particular, 80 patients (93%) showed prodromal symptoms (smell and/or taste dysfunctions) and other typical clinical manifestations and 19 died (13 men age 73.4 ± 7.7 and 6 women age 74.8 ± 6.7). 48 patients were excluded because 13 finished chemotherapy and 6 radiotherapy recently, 5 presented suspected breast carcinoma, 5 suspected lung carcinoma, 6 suspected ovarian carcinoma or ovary cyst, 1 cystic fibrosis, 3 renal fibrosis and 9 were affected by autoimmune diseases in treatment with monoclonal antibodies. The venous sample was taken for each patient on the admission and during the hospital stay. For each patient, six measurements relating to considered parameters were performed. Significant correlations between He4 and IL-6 levels (r = 0.797), between He4 and PSP (r = 0.621), between He4 and PCT (r = 0.447), between He4 and D-Dimer (r = 0.367), between He4 and RCP (r = 0.327) have been found. ROC curves analysis showed an excellent accuracy for He4 (AUC = 0.92) and IL-6 (AUC = 0.91), a very good accuracy for PSP (AUC = 0.81), a good accuracy for PCT (AUC = 0.701) and D-Dimer (AUC = 0.721) and sufficient accuracy for RCP (AUC = 0.616). These results demonstrated the important correlation between He4, IL6 and PSP, an excellent accuracy of He4 and IL6 and showed a probable role of He4 in the innate immunity in particularly at the level of oral cavity, nasopharynx and respiratory tract. Besides He4 together with IL6 might be involved in the onset of smell and/or taste disorders and it might be used as innovative biomarker to monitor clinical evolution of COVID-19 because He4 could indicate a multi-organ involvement.
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Affiliation(s)
- Annalisa Schirinzi
- AOU Policlinico Consorziale di Bari—Ospedale Giovanni XXIII, Clinical Pathology Unit, 70124 Bari, Italy; (A.S.); (R.L.); (F.D.S.)
| | - Angela Pia Cazzolla
- Department of Clinical and Experimental Medicine, Università degli Studi di Foggia, 71122 Foggia, Italy; (A.P.C.); (L.L.M.); (N.F.T.); (D.C.)
| | - Roberto Lovero
- AOU Policlinico Consorziale di Bari—Ospedale Giovanni XXIII, Clinical Pathology Unit, 70124 Bari, Italy; (A.S.); (R.L.); (F.D.S.)
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, Università degli Studi di Foggia, 71122 Foggia, Italy; (A.P.C.); (L.L.M.); (N.F.T.); (D.C.)
| | - Nunzio Francesco Testa
- Department of Clinical and Experimental Medicine, Università degli Studi di Foggia, 71122 Foggia, Italy; (A.P.C.); (L.L.M.); (N.F.T.); (D.C.)
| | - Domenico Ciavarella
- Department of Clinical and Experimental Medicine, Università degli Studi di Foggia, 71122 Foggia, Italy; (A.P.C.); (L.L.M.); (N.F.T.); (D.C.)
| | | | - Pietro Pozzessere
- AOU Policlinico Consorziale di Bari—Ospedale Giovanni XXIII, Emergency Medicine and Surgery Unit, 70124 Bari, Italy; (P.P.); (V.P.)
| | - Vito Procacci
- AOU Policlinico Consorziale di Bari—Ospedale Giovanni XXIII, Emergency Medicine and Surgery Unit, 70124 Bari, Italy; (P.P.); (V.P.)
| | - Francesca Di Serio
- AOU Policlinico Consorziale di Bari—Ospedale Giovanni XXIII, Clinical Pathology Unit, 70124 Bari, Italy; (A.S.); (R.L.); (F.D.S.)
| | - Luigi Santacroce
- Ionian Department (DJSGEM), Microbiology and Virology Lab, Università Degli Studi di Bari, 70124 Bari, Italy
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Fakhri E, Eslami H, Maroufi P, Pakdel F, Taghizadeh S, Ganbarov K, Yousefi M, Tanomand A, Yousefi B, Mahmoudi S, Kafil HS. Chitosan biomaterials application in dentistry. Int J Biol Macromol 2020; 162:956-974. [DOI: 10.1016/j.ijbiomac.2020.06.211] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/16/2020] [Accepted: 06/22/2020] [Indexed: 12/23/2022]
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Subhedar A, Bhadauria S, Ahankari S, Kargarzadeh H. Nanocellulose in biomedical and biosensing applications: A review. Int J Biol Macromol 2020; 166:587-600. [PMID: 33130267 DOI: 10.1016/j.ijbiomac.2020.10.217] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/20/2020] [Accepted: 10/27/2020] [Indexed: 12/14/2022]
Abstract
Cellulose is abundant in the nature and nanocellulose (NC) in particular is regarded as a credible green substrate to be used in bio nanocomposites for various applications. NC exhibits excellent mechanical reinforcement properties comparable to conventionally used materials due to its high specific surface area and tunable surface chemistry. Additionally, low toxicity, biodegradability and biocompatibility of NC deem it a promising material for use in different biomedical applications. In this review, we highlight the biomedical applications of NC based hydrogels and aerogels/nanocomposites and advancements of their employment in the areas of wound dressing, drug delivery, tissue engineering, scaffolds and biomedical implants. This review also explores the recent use of NC in making biosensors for the detection of cholesterol, various enzymes and diseases, heavy metal ions in human sweat and urine, and for general health monitoring.
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Affiliation(s)
- Aditya Subhedar
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Swarnim Bhadauria
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Sandeep Ahankari
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
| | - Hanieh Kargarzadeh
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Seinkiewicza 112, 90-363 Lodz, Poland
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Antimicrobial Capacity and Surface Alterations Using Photodynamic Therapy and Light Activated Disinfection on Polymer-Infiltrated Ceramic Material Contaminated with Periodontal Bacteria. Pharmaceuticals (Basel) 2020; 13:ph13110350. [PMID: 33137995 PMCID: PMC7693966 DOI: 10.3390/ph13110350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/26/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
This study determined the antimicrobial efficiency of light-activated disinfection (LAD) and photodynamic therapy (PDT) on polymer-infiltrated ceramic network (PICN) material contaminated with three periodontal bacteria and explored if PDT and LAD cause PICN surface alterations. Sixty PICN discs were contaminated with Tannerella forsythia, Porphyromonas gingivalis, and Treponema denticola and randomly divided into five groups (n = 12 samples/each) according to the treatment groups: Group PDT-PDT (630 ± 10 nm diode laser) with methylene blue; Group DL-808 nm diode laser in contact mode without photosensitizer; Group MB-methylene blue without light application; Group CHX-0.12% chlorhexidine digluconate solution and; Group NT-no treatment. Each disc was then placed in tubes containing phosphate buffered saline (PBS) and vortexed for 30 s to remove the remaining bacteria from the discs. A total of 10× serial dilutions were performed followed by plating of 30 μL of suspension on Brucella agar plates. The colony forming units (CFU) were calculated after 72 h. PICN discs with the attached biofilms were used for confocal microscopy investigation for live/dead bacterial viability. A random single sample from each group was selected to study the bacterial adherence and topographical alterations on PICN discs under scanning electron microscope (SEM). The PDT group showed higher reduction for each bacterial species and total counts of bacteria assessed followed by the DL group (p < 0.05). When compared with MB group, the two laser groups were significantly superior (p < 0.05). The MB group did not show significant differences for any bacteria when compared to NT. The bacteria with the CHX group and DL groups appeared dead with few areas of surviving green stained bacteria. The PDT group showed the highest dead cell count (p < 0.05). PDT and DL groups indicate no significant changes on the surface compared to the sterile PICN discs on visual assessment. Photodynamic therapy produced superior periodontal bacteria reduction over the surface of PICN surface. PDT group showed higher reduction for each bacterial species and total counts of bacteria assessed followed by the DL group. Both PDT and DL treatment strategies are effective without producing surface alterations on PICN.
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Forte CPF, Matos AP, Mendes FH, Dias CC, Ferreira AEC, Bezerra TP, Sousa FB, Barros Silva PGD. Photobiomodulation Therapy Reduces the Inflammatory Process without Inhibiting Bone Deposition in Rats in an Extraction Model. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:673-678. [PMID: 33095091 DOI: 10.1089/photob.2020.4844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Objective: We evaluated the influence of photobiomodulation therapy (PBMT) application during bone healing postexodontia in rats. Methods: We divided 84 male Wistar rats into a control group (CG), which received placebo treatment without PBMT, and a test group (TG), which was treated with PBMT. After exodontia, the animals were subjected to PBMT (TG) with an AsGaAI diode laser at 810 nm, 100 mW, 2 J, and 70 J/cm2 or placebo treatment (CG) every 72 h. After 1, 3, 7, 14, 21, and 28 days, the animals were weighed and euthanized to remove the left hemimandibles for radiographic (alveolar filling) and histomorphometric (inflammatory polymorphonuclear cell (PMN), mononuclear cell (MN), osteoclast (OC), and blood vessels counting) analysis. Statistic approach used two-way variance analysis followed by Bonferroni post hoc (p < 0.05, GraphPad Prism 5.0). Results: There was no significant difference in body mass variation (p = 0.828) and bone neoformation (p = 0.365) between the two groups, but the TG presented lower PMN (p < 0.001), MN (p < 0.001), and OC counts (p < 0.001) and higher blood vessels count (p < 0.001) throughout the repair process. Conclusions: PBMT attenuated the inflammatory process after exodontia without interfering with bone neoformation.
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Affiliation(s)
| | - Amanda Pinheiro Matos
- Department of Dentistry and Christus University Center (Unichristus), Fortaleza-CE, Brazil
| | - Felipe Herbert Mendes
- Department of Dentistry and Christus University Center (Unichristus), Fortaleza-CE, Brazil
| | - Camila Costa Dias
- Department of Dentistry Sciences, Christus University Center (Unichristus), Fortaleza-CE, Brazil
| | | | - Tácio Pinheiro Bezerra
- Department of Dentistry Sciences, Christus University Center (Unichristus), Fortaleza-CE, Brazil
| | - Fabrício Bitu Sousa
- Department of Dentistry Sciences, Christus University Center (Unichristus), Fortaleza-CE, Brazil
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Mallia A, Gianazza E, Zoanni B, Brioschi M, Barbieri SS, Banfi C. Proteomics of Extracellular Vesicles: Update on Their Composition, Biological Roles and Potential Use as Diagnostic Tools in Atherosclerotic Cardiovascular Diseases. Diagnostics (Basel) 2020; 10:diagnostics10100843. [PMID: 33086718 PMCID: PMC7588996 DOI: 10.3390/diagnostics10100843] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/13/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) are lipid-bound vesicles released from cells under physiological and pathological conditions. Basing on biogenesis, dimension, content and route of secretion, they can be classified into exosomes, microvesicles (MVs) and apoptotic bodies. EVs have a key role as bioactive mediators in intercellular communication, but they are also involved in other physiological processes like immune response, blood coagulation, and tissue repair. The interest in studying EVs has increased over the years due to their involvement in several diseases, such as cardiovascular diseases (CVDs), and their potential role as biomarkers in diagnosis, therapy, and in drug delivery system development. Nowadays, the improvement of mass spectrometry (MS)-based techniques allows the characterization of the EV protein composition to deeply understand their role in several diseases. In this review, a critical overview is provided on the EV’s origin and physical properties, as well as their emerging functional role in both physiological and disease conditions, focusing attention on the role of exosomes in CVDs. The most important cardiac exosome proteomic studies will be discussed giving a qualitative and quantitative characterization of the exosomal proteins that could be used in future as new potential diagnostic markers or targets for specific therapies.
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Antioxidant Effect of Beer Polyphenols and Their Bioavailability in Dental-Derived Stem Cells (D-dSCs) and Human Intestinal Epithelial Lines (Caco-2) Cells. Stem Cells Int 2020; 2020:8835813. [PMID: 33101420 PMCID: PMC7569455 DOI: 10.1155/2020/8835813] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/07/2020] [Accepted: 09/13/2020] [Indexed: 02/06/2023] Open
Abstract
Beer is one of the most consumed alcoholic beverages in the world, rich in chemical compounds of natural origin with high nutritional and biological value. It is made up of water, barley malt, hops, and yeast. The main nutrients are carbohydrates, amino acids, minerals, vitamins, and other compounds such as polyphenols which are responsible for the many health benefits associated with this consumption of drinks. Hops and malt are one of the raw materials for beer and are a source of phenolic compounds. In fact, about 30% of the polyphenols in beer comes from hops and 70%-80% from malt. Natural compounds of foods or plants exert an important antioxidant activity, counteracting the formation of harmful free radicals. In the presence of an intense stressing event, cells activate specific responses to counteract cell death or senescence which is known to act as a key-task in the onset of age-related pathologies and in the loss of tissue homeostasis. Many studies have shown positive effects of natural compounds as beer polyphenols on biological systems. The main aims of our research were to determine the polyphenolic profile of three fractions, coming from stages of beer production, the mashing process (must), the filtration process (prehopping solution), and the boiling process with the addition of hops (posthopping solution), and to evaluate the effects of these fractions on Dental-derived Stem Cells (D-dSCs) and human intestinal epithelial lines (Caco-2 cells). Furthermore, we underline the bioavailability of beer fraction polyphenols by carrying out the in vitro intestinal absorption using the Caco-2 cell model. We found an antioxidant, proliferating, and antisenescent effects of the fractions deriving from the brewing process on D-dSCs and Caco-2 cells. Finally, our results demonstrated that the bioavailability of polyphenols is greater in beer than in the control standards used, supporting the future clinical application of these compounds as potential therapeutic tools in precision and translational medicine.
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Study of Mechanical and Thermal Properties in Nano-Hydroxyapatite/Chitosan/Carboxymethyl Cellulose Nanocomposite-Based Scaffold for Bone Tissue Engineering: The Roles of Carboxymethyl Cellulose. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10196970] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Synthetic scaffolding for bone tissue engineering (BTE) has been widely utilized. The scaffold for BTE requires sufficient porosity as a template for bone cell development and growth so that it can be used in the treatment of bone defects and fractures. Nevertheless, the porosity significantly influences the compressive strength of the scaffold. Hence, controlling the porosity is a pivotal role to obtain a proper scaffold for practical BTE application. Herein, we fabricated the nanocomposite-based scaffold utilizing nano-hydroxyapatite (n-HA). The scaffold was prepared in combination with chitosan (Ch) and carboxymethyl cellulose (CMC). The ratios of n-HA, Ch, and CMC used were 40:60:0, 40:55:5, 40:50:10, 40:45:15, and 40:40:20, respectively. By controlling the Ch and CMC composition, we can tune the porosity of the nanocomposite. We found that the interpolation of the CMC prevails, as a crosslinker reinforces the nanocomposite. In addition, the binding to Ch enhanced the compressive strength of the scaffold. Thermal characteristics revealed the coefficient of thermal expansion decreases with increasing CMC content. The nanocomposite does not expand at 25–75 °C, which is suitable for human body temperature. Therefore, this nanocomposite-based scaffold is feasible for BTE application.
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Santacroce L, Charitos IA, Ballini A, Inchingolo F, Luperto P, De Nitto E, Topi S. The Human Respiratory System and its Microbiome at a Glimpse. BIOLOGY 2020; 9:E318. [PMID: 33019595 PMCID: PMC7599718 DOI: 10.3390/biology9100318] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023]
Abstract
The recent COVID-19 pandemic promoted efforts to better understand the organization of the respiratory microbiome and its evolution from birth to adulthood and how it interacts with external pathogens and the host immune system. This review aims to deepen understanding of the essential physiological functions of the resident microbiome of the respiratory system on human health and diseases. First, the general characteristics of the normal microbiota in the different anatomical sites of the airways have been reported in relation to some factors such as the effect of age, diet and others on its composition and stability. Second, we analyze in detail the functions and composition and the correct functionality of the microbiome in the light of current knowledge. Several studies suggest the importance of preserving the micro-ecosystem of commensal, symbiotic and pathogenic microbes of the respiratory system, and, more recently, its relationship with the intestinal microbiome, and how it also leads to the maintenance of human health, has become better understood.
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Affiliation(s)
- Luigi Santacroce
- Ionian Department, Microbiology and Virology Laboratory, University of Bari “Aldo Moro”, Piazza G. Cesare 11, 70124 Bari, Italy;
- Department of Clinical Disciplines, University of Elbasan, Rruga Ismail Zyma, 3001 Elbasan, Albania;
| | | | - Andrea Ballini
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Vico L. De Crecchio 7, 80138 Naples, Italy
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Paolo Luperto
- ENT Service, Brindisi Local Health Agency, Via Dalmazia 3, 72100 Brindisi, Italy;
| | - Emanuele De Nitto
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Skender Topi
- Department of Clinical Disciplines, University of Elbasan, Rruga Ismail Zyma, 3001 Elbasan, Albania;
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Fusco A, Dicuonzo G, Dell’Atti V, Tatullo M. Blockchain in Healthcare: Insights on COVID-19. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E7167. [PMID: 33007951 PMCID: PMC7579329 DOI: 10.3390/ijerph17197167] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/17/2022]
Abstract
The SARS-CoV2 pandemic has impacted risk management globally. Blockchain has been increasingly applied to healthcare management, as a strategic tool to strengthen operative protocols and to create the proper basis for an efficient and effective evidence-based decisional process. We aim to validate blockchain in healthcare, and to suggest a trace-route for a COVID19-safe clinical practice. The use of blockchain in combination with artificial intelligence systems allows the creation of a generalizable predictive system that could contribute to the containment of pandemic risk on national territory. A SWOT analysis of the adoption of a blockchain-based prediction model in healthcare and SARS-CoV-2 infection has been carried out to underline opportunities and limits to its adoption. Blockchain could play a strategic role in future digital healthcare: specifically, it may work to improve COVID19-safe clinical practice. The main concepts, and particularly those related to clinical workflow, obtainable from different blockchain-based models have been reported here and critically discussed.
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Affiliation(s)
- Antonio Fusco
- Department of Economics, Management and Business Law, University of Bari Aldo Moro, 70124 Bari, Italy; (A.F.); (G.D.); (V.D.)
| | - Grazia Dicuonzo
- Department of Economics, Management and Business Law, University of Bari Aldo Moro, 70124 Bari, Italy; (A.F.); (G.D.); (V.D.)
| | - Vittorio Dell’Atti
- Department of Economics, Management and Business Law, University of Bari Aldo Moro, 70124 Bari, Italy; (A.F.); (G.D.); (V.D.)
| | - Marco Tatullo
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari ALDO MORO, 70124 Bari, Italy
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Ibrahim A, Heitzer M, Bock A, Peters F, Möhlhenrich SC, Hölzle F, Modabber A, Kniha K. Relationship between Implant Geometry and Primary Stability in Different Bony Defects and Variant Bone Densities: An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4349. [PMID: 33007841 PMCID: PMC7579538 DOI: 10.3390/ma13194349] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022]
Abstract
AIM This in vitro study aimed to evaluate the effects of implant designs on primary stability in different bone densities and bony defects. METHODS Five implant types (tapered-tissue-level, tissue-level, zirconia-tissue-level, bone-level, and BLX implants) were used in this assessment. The implants were inserted into four different artificial bone blocks representing varying bone-density groups: D1, D2, D3, and D4. Aside from the control group, three different types of defects were prepared. Using resonance frequency analysis and torque-in and -out values, the primary stability of each implant was evaluated. RESULTS With an increased defect size, all implant types presented reduced implant stability values measured by the implant stability quotient (ISQ) values. Loss of stability was the most pronounced around circular defects. Zirconia and bone-level implants showed the highest ISQ values, whereas tissue level titanium implants presented the lowest stability parameters. The implant insertion without any thread cut led to a small improvement in primary implant stability in all bone densities. CONCLUSIONS Compared with implants with no peri-implant defects, the three-wall and one-wall defect usually did not provide significant loss of primary stability. A significant loss of stability should be expected when inserting implants into circular defects. Implants with a more aggressive thread distance could increase primary stability.
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Affiliation(s)
- Ahmad Ibrahim
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | - Marius Heitzer
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | - Anna Bock
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | - Florian Peters
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | | | - Frank Hölzle
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | - Ali Modabber
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
| | - Kristian Kniha
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany; (A.I.); (M.H.); (A.B.); (F.P.); (F.H.); (A.M.)
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Wang LK, Wu TJ, Hong JH, Chen FH, Yu J, Wang CC. Radiation Induces Pulmonary Fibrosis by Promoting the Fibrogenic Differentiation of Alveolar Stem Cells. Stem Cells Int 2020; 2020:6312053. [PMID: 33061990 PMCID: PMC7542528 DOI: 10.1155/2020/6312053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/11/2020] [Accepted: 08/25/2020] [Indexed: 12/20/2022] Open
Abstract
The lung is a radiosensitive organ, which imposes limits on the therapeutic dose in thoracic radiotherapy. Irradiated alveolar epithelial cells promote radiation-related pneumonitis and fibrosis. However, the role of lung stem cells (LSCs) in the development of radiation-induced lung injury is still unclear. In this study, we found that both LSCs and LSC-derived type II alveolar epithelial cells (AECII) can repair radiation-induced DNA double-strand breaks, but the irradiated LSCs underwent growth arrest and cell differentiation faster than the irradiated AECII cells. Moreover, radiation drove LSCs to fibrosis as shown with the elevated levels of markers for epithelial-mesenchymal transition and myofibroblast (α-smooth muscle actin (α-SMA)) differentiation in in vitro and ex vivo studies. Increased gene expressions of connective tissue growth factor and α-SMA were found in both irradiated LSCs and alveolar cells, suggesting that radiation could induce the fibrogenic differentiation of LSCs. Irradiated LSCs showed an increase in the expression of surfactant protein C (SP-C), the AECII cell marker, and α-SMA, and irradiated AECII cells expressed SP-C and α-SMA. These results indicated that radiation induced LSCs to differentiate into myofibroblasts and AECII cells; then, AECII cells differentiated further into either myofibroblasts or type I alveolar epithelial cells (AECI). In conclusion, our results revealed that LSCs are sensitive to radiation-induced cell damage and may be involved in radiation-induced lung fibrosis.
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Affiliation(s)
- Lu-Kai Wang
- Radiation Biology Core Laboratory, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Tsai-Jung Wu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Ji-Hong Hong
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Linkou, Taoyuan, Taiwan
- Radiation Biology Research Center, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Fang-Hsin Chen
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Linkou, Taoyuan, Taiwan
- Radiation Biology Research Center, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - John Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Chun-Chieh Wang
- Radiation Biology Core Laboratory, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Linkou, Taoyuan, Taiwan
- Radiation Biology Research Center, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
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Phospholipase D1 and D2 Synergistically Regulate Thrombus Formation. Int J Mol Sci 2020; 21:ijms21186954. [PMID: 32971863 PMCID: PMC7555624 DOI: 10.3390/ijms21186954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 11/16/2022] Open
Abstract
Previously, we reported that phospholipase D1 (PLD1) and PLD2 inhibition by selective PLD1 and PLD2 inhibitors could prevent platelet aggregation in humans, but not in mice. Moreover, only the PLD1 inhibitor, but not PLD2 inhibitor, could effectively prevent thrombus formation in mice, indicating that PLD might play different roles in platelet function in humans and mice. Although PLD1 and PLD2 were reported to be implicated in thrombotic events, the role of PLD in mice remains not completely clear. Here, we investigated the role of PLD1 and PLD2 in acute pulmonary thrombosis and transient middle cerebral artery occlusion-induced brain injury in mice. The data revealed that inhibition of PLD1, but not of PLD2, could partially prevent pulmonary thrombosis-induced death. Moreover, concurrent PLD1 and PLD2 inhibition could considerably increase survival rate. Likewise, inhibition of PLD1, but not PLD2, partially improved ischemic stroke and concurrent inhibition of PLD1, and PLD2 exhibited a relatively better protection against ischemic stroke, as evidenced by the infarct size, brain edema, modified neurological severity score, rotarod test, and the open field test. In conclusion, PLD1 might play a more important role than PLD2, and both PLD1 and PLD2 could act synergistically or have partially redundant functions in regulating thrombosis-relevant events.
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48
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Naomi R, Ardhani R, Hafiyyah OA, Fauzi MB. Current Insight of Collagen Biomatrix for Gingival Recession: An Evidence-Based Systematic Review. Polymers (Basel) 2020; 12:E2081. [PMID: 32933133 PMCID: PMC7570157 DOI: 10.3390/polym12092081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/09/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022] Open
Abstract
Collagen (Col) is a naturally available material and is widely used in the tissue engineering and medical field owing to its high biocompatibility and malleability. Promising results on the use of Col were observed in the periodontal application and many attempts have been carried out to inculcate Col for gingival recession (GR). Col is found to be an excellent provisional bioscaffold for the current treatment in GR. Therefore, the aim of this paper is to scrutinize an overview of the reported Col effect focusing on in vitro, in vivo, and clinical trials in GR application. A comprehensive literature search was performed using EBSCOhost, Science Direct, Springer Link, and Medline & Ovid databases to identify the potential articles on particular topics. The search query was accomplished based on the Boolean operators involving keywords such as (1) collagen OR scaffold OR hybrid scaffold OR biomaterial AND (2) gingiva recession OR tissue regeneration OR dental tissue OR healing mechanism OR gingiva. Only articles published from 2015 onwards were selected for further analysis. This review includes the physicochemical properties of Col scaffold and the outcome for GR. The comprehensive literature search retrieved a total of 3077 articles using the appropriate keywords. However, on the basis of the inclusion and exclusion criteria, only 15 articles were chosen for further review. The results from these articles indicated that Col promoted gingival tissue regeneration for GR healing. Therefore, this systematic review recapitulated that Col enhances regeneration of gingival tissue either through a slow or rapid process with no sign of cytotoxicity or adverse effect.
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Affiliation(s)
- Ruth Naomi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Retno Ardhani
- Department of Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Jl Denta Sekip Utara, Yogyakarta 55281, Indonesia;
| | - Osa Amila Hafiyyah
- Department of Periodontics, Faculty of Dentistry, Universitas Gadjah Mada, Jl Denta Sekip Utara, Yogyakarta 55281, Indonesia;
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
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Tatullo M, Marrelli B, Benincasa C, Aiello E, Makeeva I, Zavan B, Ballini A, De Vito D, Spagnuolo G. Organoids in Translational Oncology. J Clin Med 2020; 9:E2774. [PMID: 32867142 PMCID: PMC7564148 DOI: 10.3390/jcm9092774] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/07/2020] [Accepted: 08/26/2020] [Indexed: 02/06/2023] Open
Abstract
Translational medicine aims to translate the most promising preclinical research into clinical practice. Oncology is a continuously growing medical field: the scientific research on cancer biology is currently based on in vitro experiments, carried out on tissue culture plates (TCPs) and other 2D samples. In this context, 3D printing has greatly improved the biofabrication of new biological matrices that mimic the extracellular environments, which may characterize healthy from cancerous tissues. Organoids have recently been described in several reports on scientific literature. The term that better describes such organoids-based tumoral tissues is "tumoroids". Tumoroids are substantially "tumor-like organoids", typically deriving from primary tumors harvested from patients. This topical review aims to give an update on organoids applied in translational medicine, paying specific attention to their use in the investigation of the main molecular mechanisms of cancer onset and growth, and on the most impacting strategies for effective targeted therapies.
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Affiliation(s)
- Marco Tatullo
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Benedetta Marrelli
- Marrelli Health—Tecnologica Research Institute, Biomedical Section, Street E. Fermi, 88900 Crotone, Italy; (B.M.); (C.B.); (E.A.)
| | - Caterina Benincasa
- Marrelli Health—Tecnologica Research Institute, Biomedical Section, Street E. Fermi, 88900 Crotone, Italy; (B.M.); (C.B.); (E.A.)
| | - Elisabetta Aiello
- Marrelli Health—Tecnologica Research Institute, Biomedical Section, Street E. Fermi, 88900 Crotone, Italy; (B.M.); (C.B.); (E.A.)
| | - Irina Makeeva
- Department of Therapeutic Dentistry, Sechenov University Russia, 119146 Moscow, Russia; (I.M.); (G.S.)
| | - Barbara Zavan
- Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Andrea Ballini
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari “Aldo Moro”, Campus Universitario “Ernesto Quagliariello”, 70125 Bari, Italy;
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Danila De Vito
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Gianrico Spagnuolo
- Department of Therapeutic Dentistry, Sechenov University Russia, 119146 Moscow, Russia; (I.M.); (G.S.)
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples, 80131 Naples, Italy
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50
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Bilić-Prcić M, Rajić VB, Ivanišević A, Pilipović A, Gurgan S, Miletić I. Mechanical Properties of Glass Ionomer Cements after Incorporation of Marine Derived Porous Cuttlefish Bone Hydroxyapatite. MATERIALS 2020; 13:ma13163542. [PMID: 32796624 PMCID: PMC7475982 DOI: 10.3390/ma13163542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/06/2020] [Accepted: 08/09/2020] [Indexed: 01/11/2023]
Abstract
The purpose of this study was to evaluate the effects of the incorporation of hydroxyapatite (HA) derived from cuttlefish bone on the mechanical properties of glass ionomer cements (GIC). Fuji II LC and Fuji IX GP Extra (GC Corporation, Tokyo, Japan) were used in the study. There were four groups (n = 11–18) for each material: a group without the addition of HA particles and three groups modified by incorporation of 2, 5, and 10 wt% HA. The tests were performed on a universal testing machine (Shimadzu, Duisburg, Germany) and descriptive statistics, two-way analysis of variance (ANOVA) for the comparison of three mechanical properties, and one-way ANOVA for the comparison of different concentrations for each material were performed. Regarding the Fuji IX groups, compressive strength (CS) and flexural strength (FS) were highest in the group without HA particles added. The differences in CS between the Fuji IX group without HA particles and the Fuji IX groups with 2 wt% HA and 10 wt% HA were significant. The Fuji II 5 wt% HA group exhibited higher diametral tensile strength (DTS) and CS than other Fuji II groups, but not significantly. The Fuji II group, modified with 10 wt% HA, exhibited significantly higher FS than the Fuji II group without HA particles (p < 0.05). Porous HA incorporated into the Fuji IX groups had a significant impact on mechanical properties only in the Fuji IX 5 wt% HA group. Fuji II groups modified with 10 wt% HA showed the most favorable results with respect to FS.
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Affiliation(s)
- Maja Bilić-Prcić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Valentina Brzović Rajić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Ana Ivanišević
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
- Correspondence: ; Tel.: +385-1-4802-126
| | - Ana Pilipović
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Lučićeva 5, 10000 Zagreb, Croatia;
| | - Sevil Gurgan
- School of Dentistry, Hacettepe University, Ankara 06100, Turkey;
| | - Ivana Miletić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
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