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Barbaro F, Conza GD, Quartulli FP, Quarantini E, Quarantini M, Zini N, Fabbri C, Mosca S, Caravelli S, Mosca M, Vescovi P, Sprio S, Tampieri A, Toni R. Correlation between tooth decay and insulin resistance in normal weight males prompts a role for myo-inositol as a regenerative factor in dentistry and oral surgery: a feasibility study. Front Bioeng Biotechnol 2024; 12:1374135. [PMID: 39144484 PMCID: PMC11321979 DOI: 10.3389/fbioe.2024.1374135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 07/01/2024] [Indexed: 08/16/2024] Open
Abstract
Background In an era of precision and stratified medicine, homogeneity in population-based cohorts, stringent causative entry, and pattern analysis of datasets are key elements to investigate medical treatments. Adhering to these principles, we collected in vivo and in vitro data pointing to an insulin-sensitizing/insulin-mimetic effect of myo-inositol (MYO) relevant to cell regeneration in dentistry and oral surgery. Confirmation of this possibility was obtained by in silico analysis of the relation between in vivo and in vitro results (the so-called bed-to-benchside reverse translational approach). Results Fourteen subjects over the 266 screened were young adult, normal weight, euglycemic, sedentary males having normal appetite, free diet, with a regular three-times-a-day eating schedule, standard dental hygiene, and negligible malocclusion/enamel defects. Occlusal caries were detected by fluorescence videoscanning, whereas body composition and energy balance were estimated with plicometry, predictive equations, and handgrip. Statistically significant correlations (Pearson r coefficient) were found between the number of occlusal caries and anthropometric indexes predicting insulin resistance (IR) in relation to the abdominal/visceral fat mass, fat-free mass, muscular strength, and energy expenditure adjusted to the fat and muscle stores. This indicated a role for IR in affecting dentin reparative processes. Consistently, in vitro administration of MYO to HUVEC and Swiss NIH3T3 cells in concentrations corresponding to those administered in vivo to reduce IR resulted in statistically significant cell replication (ANOVA/Turkey tests), suggesting that MYO has the potential to counteract inhibitory effects of IR on dental vascular and stromal cells turnover. Finally, in in silico experiments, quantitative evaluation (WOE and information value) of a bioinformatic Clinical Outcome Pathway confirmed that in vitro trophic effects of MYO could be transferred in vivo with high predictability, providing robust credence of its efficacy for oral health. Conclusion Our reverse bed-to-benchside data indicate that MYO might antagonize the detrimental effects of IR on tooth decay. This provides feasibility for clinical studies on MYO as a regenerative factor in dentistry and oral surgery, including dysmetabolic/aging conditions, bone reconstruction in oral destructive/necrotic disorders, dental implants, and for empowering the efficacy of a number of tissue engineering methodologies in dentistry and oral surgery.
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Affiliation(s)
- Fulvio Barbaro
- Department of Medicine and Surgery - DIMEC, Laboratory of Regenerative Morphology and Bioartificial Structures (Re.Mo.Bio.S.), Museum and Historical Library of Biomedicine - BIOMED, University of Parma, Parma, Italy
| | - Giusy Di Conza
- Department of Medicine and Surgery - DIMEC, Laboratory of Regenerative Morphology and Bioartificial Structures (Re.Mo.Bio.S.), Museum and Historical Library of Biomedicine - BIOMED, University of Parma, Parma, Italy
| | - Francesca Pia Quartulli
- Department of Medicine and Surgery - DIMEC, Laboratory of Regenerative Morphology and Bioartificial Structures (Re.Mo.Bio.S.), Museum and Historical Library of Biomedicine - BIOMED, University of Parma, Parma, Italy
| | - Enrico Quarantini
- Odontostomatology Unit, and R&D Center for Artificial Intelligence in Biomedicine and Odontostomatology (A.I.B.O), Galliera Medical Center, San Venanzio di Galliera, Italy
| | - Marco Quarantini
- Odontostomatology Unit, and R&D Center for Artificial Intelligence in Biomedicine and Odontostomatology (A.I.B.O), Galliera Medical Center, San Venanzio di Galliera, Italy
| | - Nicoletta Zini
- CNR Institute of Molecular Genetics “Luigi Luca Cavalli-Sforza”, Unit of Bologna, Bologna, Italy
| | - Celine Fabbri
- Course on Odontostomatology, University Vita-Salute San Raffaele, Milan, Italy
| | - Salvatore Mosca
- Course on Disorders of the Locomotor System, Fellow Program in Orthopaedics and Traumatology, University Vita-Salute San Raffaele, Milan, Italy
| | - Silvio Caravelli
- O.U. Orthopedics Bentivoglio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Massimiliano Mosca
- O.U. Orthopedics Bentivoglio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Paolo Vescovi
- Department of Medicine and Surgery - DIMEC, Odontostomatology Section, University of Parma, Parma, Italy
| | | | | | - Roberto Toni
- CNR - ISSMC, Faenza, Italy
- Academy of Sciences of the Institute of Bologna, Section IV - Medical Sciences, Bologna, Italy
- Endocrinology, Diabetes, and Nutrition Disorders Outpatient Clinic - OSTEONET (Osteoporosis, Nutrition, Endocrinology, and Innovative Therapies) and R&D Center A.I.B.O, Centro Medico Galliera, San Venanzio di Galliera, Italy
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Tufts Medical Center - Tufts University School of Medicine, Boston, MA, United States
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Fu XL, He FT, Li MH, Fu CY, Chen JZ. circZNF532 promotes endothelial-to-mesenchymal transition in diabetic retinopathy by recruiting TAF15 to stabilize PIK3CD. Endocr J 2024; 71:675-686. [PMID: 38811189 DOI: 10.1507/endocrj.ej23-0683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2024] Open
Abstract
Endothelial-to-mesenchymal transition (EndMT) is a pivotal event in diabetic retinopathy (DR). This study explored the role of circRNA zinc finger protein 532 (circZNF532) in regulating EndMT in DR progression. Human retinal microvascular endothelial cells (HRMECs) were exposed to high glucose (HG) to induce the DR cell model. Actinomycin D-treated HRMECs were used to confirm the mRNA stability of phosphoinositide-3 kinase catalytic subunit δ (PIK3CD). The interaction between TATA-box-binding protein-associated factor 15 (TAF15) and circZNF532/PIK3CD was subsequently analyzed using RNA immunoprecipitation (RIP), RNA pull-down. It was found that HG treatment accelerated EndMT process, facilitated cell migration and angiogenesis, and enhanced PIK3CD and p-AKT levels in HRMECs, whereas si-circZNF532 transfection neutralized these effects. Further data showed that circZNF532 recruited TAF15 to stabilize PIK3CD, thus elevating PIK3CD expression. Following rescue experiments suggested that PIK3CD overexpression partially negated the inhibitory effect of circZNF532 silencing on EndMT, migration, and angiogenesis of HG-treated HRMECs. In conclusion, our results suggest that circZNF532 recruits TAF15 to stabilize PIK3CD, thereby facilitating EndMT in DR.
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Affiliation(s)
- Xiao-Lin Fu
- Department of Ophthalmology, Hainan West Central Hospital, Danzhou 571700, Hainan Province, P.R. China
| | - Fu-Tao He
- Department of Ophthalmology, Hainan West Central Hospital, Danzhou 571700, Hainan Province, P.R. China
| | - Mo-Han Li
- Department of Ophthalmology, Hainan West Central Hospital, Danzhou 571700, Hainan Province, P.R. China
| | - Chun-Yan Fu
- Department of Ophthalmology, Hainan West Central Hospital, Danzhou 571700, Hainan Province, P.R. China
| | - Jian-Zhi Chen
- Department of Ophthalmology, Hainan West Central Hospital, Danzhou 571700, Hainan Province, P.R. China
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Shimoyama M, Kanzaki H, Tohyama S, Ida T, Ishikawa M, Katsumata Y, Arai C, Wada S, Manase S, Tomonari H. Mandibular Endochondral Growth Is Specifically Augmented by Nutritional Supplementation with Myo-Inositol Even in Rabbits. Dent J (Basel) 2024; 12:49. [PMID: 38534273 DOI: 10.3390/dj12030049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/14/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
Mandibular retrognathism occurs by insufficient mandibular growth and causes several issues, such as respiratory difficulty and diminished masticatory function. At present, functional orthodontic appliances are used for stimulating mandibular growth in pediatric cases. However, the effectiveness of functional appliances is not always stable in daily practices. A more effective, reliable, and safer therapeutic method for mandibular growth promotion would be helpful for growing mandibular retrognathism patients. As we previously discovered that nutritional supplementation of myo-inositol in growing mice specifically increases mandibular endochondral growth, we performed preclinical animal experiments in rabbits in this study. Briefly, six-week-old male Japanese white rabbits were fed with or without myo-inositol supplementation in laboratory chow until 25 weeks old, and 3D image analysis using micro CT data and histological examinations was done. Myo-inositol had no systemic effect, such as femur length, though myo-inositol specifically augmented the mandibular growth. Myo-inositol increased the thickness of mandibular condylar cartilage. We discovered that the nutritional supplementation of myo-inositol during the growth period specifically augmented mandibular growth without any systemic influence, even in rabbits. Our results suggest the possibility of clinical use of myo-inositol for augmentation of the mandibular growth in growing mandibular retrognathism patients in the future.
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Affiliation(s)
- Miho Shimoyama
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Hiroyuki Kanzaki
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Syunnosuke Tohyama
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Tomomi Ida
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Misao Ishikawa
- Department of Anatomy, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Yuta Katsumata
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Chihiro Arai
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Satoshi Wada
- Department of Oral and Maxillofacial Surgery, Kanazawa Medical University, Kanazawa 920-0293, Japan
| | - Shugo Manase
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
| | - Hiroshi Tomonari
- Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama 230-8501, Japan
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Wu J, Wen L, Chen J, Chang Y, Huang R, Lin Y, Shen G, Feng J. Discover boy specific-biomarkers and reveal gender-related metabolic differences in central precocious puberty. J Steroid Biochem Mol Biol 2023; 231:106305. [PMID: 36997004 DOI: 10.1016/j.jsbmb.2023.106305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/13/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
The incidence of central precocious puberty (CPP) in boys is rising, but lack of effective molecular biomarkers often leads to delayed treatment and thus the terrible clinical complications in adulthood. This study aims to identify the specific-biomarkers of CPP boys and understand the gender-related differences in metabolic characteristics of CPP. The specific-biomarkers of CPP boys were identified from serum and their combination was optimized by cross-metabolomics combined with linear discriminant analysis effect size analysis after age correction. The differences in metabolic characteristics between boys and girls with CPP were explored by cross-metabolomics and weighted gene co-expression network analysis. Results show that CPP activated in advance the HPG axis and induced gender-related clinical phenotypes. Seven serum metabolites were identified as specific-biomarkers of CPP boys, including acetoacetate, aspartate, choline, creatinine, myo-inositol, N,N-dimethylglycine and N-Acetyl-glycoprotein. The combination of aspartate, choline, myo-inositol and creatinine achieved an optimized diagnosis, where AUC is 0.949, prediction accuracy for CPP boys is 91.1%, and the average accuracy is 0.865. The metabolic disorders of CPP boys mainly involve in glycerophospholipid metabolism, and synthesis and degradation of ketone bodies. Betaine, glutamine, isoleucine, lactate, leucine, lysine, pyruvate, α-&β-glucose were identified as gender-related biomarkers for CPP, and they are mainly involved in glycolysis/gluconeogenesis, pyruvate metabolism, and alanine, aspartate and glutamate metabolism. Biomarkers combination provides a promising diagnostic potential for CPP boy with a favorite sensitivity and specificity. In addition, the differences of metabolic characteristics between boys and girls with CPP will contribute to the development of individualized clinical treatments in CPP.
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Sharma I, Deng F, Liao Y, Kanwar YS. Myo-inositol Oxygenase (MIOX) Overexpression Drives the Progression of Renal Tubulointerstitial Injury in Diabetes. Diabetes 2020; 69:1248-1263. [PMID: 32169892 PMCID: PMC7243294 DOI: 10.2337/db19-0935] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 03/07/2020] [Indexed: 12/11/2022]
Abstract
Conceivably, upregulation of myo-inositol oxygenase (MIOX) is associated with altered cellular redox. Its promoter includes oxidant-response elements, and we also discovered binding sites for XBP1, a transcription factor of endoplasmic reticulum (ER) stress response. Previous studies indicate that MIOX's upregulation in acute tubular injury is mediated by oxidant and ER stress. Here, we investigated whether hyperglycemia leads to accentuation of oxidant and ER stress while these boost each other's activities, thereby augmenting tubulointerstitial injury/fibrosis. We generated MIOX-overexpressing transgenic (MIOX-TG) and MIOX knockout (MIOX-KO) mice. A diabetic state was induced by streptozotocin administration. Also, MIOX-KO were crossbred with Ins2 Akita to generate Ins2 Akita/KO mice. MIOX-TG mice had worsening renal functions with kidneys having increased oxidant/ER stress, as reflected by DCF/dihydroethidium staining, perturbed NAD-to-NADH and glutathione-to-glutathione disulfide ratios, increased NOX4 expression, apoptosis and its executionary molecules, accentuation of TGF-β signaling, Smads and XBP1 nuclear translocation, expression of GRP78 and XBP1 (ER stress markers), and accelerated tubulointerstitial fibrosis. These changes were not seen in MIOX-KO mice. Interestingly, such changes were remarkably reduced in Ins2 Akita/KO mice and, likewise, in vitro experiments with XBP1 siRNA. These findings suggest that MIOX expression accentuates, while its deficiency shields kidneys from, tubulointerstitial injury by dampening oxidant and ER stress, which mutually enhance each other's activity.
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Affiliation(s)
- Isha Sharma
- Department of Pathology, Northwestern University, Chicago, IL
| | - Fei Deng
- Department of Pathology, Northwestern University, Chicago, IL
| | - Yingjun Liao
- Department of Pathology, Northwestern University, Chicago, IL
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