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Luo C, Nakagawa M, Sumi Y, Matsushima Y, Uemura M, Honda Y, Matsumoto N. Detection of senescent cells in the mucosal healing process on type 2 diabetic rats after tooth extraction for biomaterial development. Dent Mater J 2024; 43:430-436. [PMID: 38644214 DOI: 10.4012/dmj.2023-262] [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] [Indexed: 04/23/2024]
Abstract
The delayed mucosal healing of tooth extraction sockets in diabetes has few known effective treatment strategies, and its underlying mechanism remains unknown. Senescent cells may play a pivotal role in this delay, given the well-established association between diabetes, senescent cells, and wound healing. Here, we demonstrated an increase in p21- or p16-positive senescent cells in the epithelial and connective tissues of extraction sockets in type 2 diabetic rats compared to those in control rats. Between 7 and 14 days after tooth extraction, a decrease in senescent cells and improvement in re-epithelialization failure were observed in the epithelium, while an increase in senescent cells and persistence of inflammation were observed in the connective tissue. These results suggest that cellular senescence may have been induced by diabetes and contributed to delayed mucosal healing by suppressing re-epithelization and persistent inflammation. These findings provide new targets for treatment using biomaterials, cells, and drugs.
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Affiliation(s)
- Chuyi Luo
- Department of Orthodontics, Osaka Dental University
| | | | - Yoichi Sumi
- Department of Anatomy, Osaka Dental University
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Sun J, Chen T, Zhao B, Fan W, Shen Y, Wei H, Zhang M, Zheng W, Peng J, Wang J, Wang Y, Fan L, Chu Y, Chen L, Yang C. Acceleration of Oral Wound Healing under Diabetes Mellitus Conditions Using Bioadhesive Hydrogel. ACS APPLIED MATERIALS & INTERFACES 2023; 15:416-431. [PMID: 36562739 PMCID: PMC9837818 DOI: 10.1021/acsami.2c17424] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Oral wounds under diabetic conditions display a significant delay during the healing process, mainly due to oxidative stress-induced inflammatory status and abnormal immune responses. Besides, the wet and complicated dynamic environment of the oral cavity impedes stable treatment of oral wounds. To overcome these, a biomimetic hydrogel adhesive was innovatively developed based on a mussel-inspired multifunctional structure. The adhesive displays efficient adhesion and mechanical harmony on the oral mucosa through enhanced bonding in an acidic proinflammatory environment. The bioadhesive hydrogel exhibits excellent antioxidative properties by mimicking antioxidative enzymatic activities to reverse reactive oxygen species (ROS)-mediated immune disorders. Experiments on oral wounds of diabetic rats showed that this hydrogel adhesive could effectively protect against mucosal wounds and obviously shorten the inflammatory phase, thus promoting the wound-healing process. Therefore, this study offers a promising therapeutic choice with the potential to advance the clinical treatment of diabetic oral wounds.
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Affiliation(s)
- Jiwei Sun
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Tiantian Chen
- School
of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan430070, China
| | - Baoying Zhao
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Wenjie Fan
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Yufeng Shen
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Haojie Wei
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan430070, China
| | - Man Zhang
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Wenhao Zheng
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Jinfeng Peng
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Jinyu Wang
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Yifan Wang
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Lihong Fan
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan430070, China
| | - Yingying Chu
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan430070, China
| | - Lili Chen
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
| | - Cheng Yang
- Department
of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan430022, China
- School
of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
- Hubei
Province Key Laboratory of Oral and Maxillofacial Development and
Regeneration, Wuhan430022, China
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High Glucose Induces Late Differentiation and Death of Human Oral Keratinocytes. Curr Issues Mol Biol 2022; 44:4015-4027. [PMID: 36135187 PMCID: PMC9498150 DOI: 10.3390/cimb44090275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 08/24/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Keratinocytes are essential cells for wound repair. Impaired oral wound healing is common in diabetic patients with periodontal disease. High glucose, or hyperglycemia, impairs the cellular function of different cell types. However, it is unknown whether high glucose has a detrimental effect on the functions of oral keratinocytes. In the current study, a human gingival keratinocyte cell line, telomerase immortalized gingival keratinocytes (TIGK), was treated with high glucose (24 and 48 mM) for up to 120 h. Proliferation, migration, cell viability, and production of markers of differentiation, growth factors and enzymatic antioxidants were assessed after high glucose treatment. The results showed that high glucose significantly inhibited TIGK proliferation and migration. High glucose also induced significant cell death through apoptosis and necrosis as determined by flow cytometry, especially at 120 h after high glucose treatment. Necrosis was the dominant form of cell death induced. Real-time PCR showed that high glucose treatment upregulated mRNA expression of late keratinocyte differentiation makers, such as keratin 1, 10, 13 and loricrin, and downregulated enzymatic antioxidants, including superoxide dismutase 1, catalase, nuclear factor erythroid 2 -related factor 2, heme oxygenase 1. In conclusion, high glucose impairs the proliferation and migration of oral keratinocytes and likely induces cell death through the promotion of late cell differentiation and down-regulation of enzymatic antioxidants.
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Ko KI, Sculean A, Graves DT. Diabetic wound healing in soft and hard oral tissues. Transl Res 2021; 236:72-86. [PMID: 33992825 PMCID: PMC8554709 DOI: 10.1016/j.trsl.2021.05.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/17/2022]
Abstract
There is significant interest in understanding the cellular mechanisms responsible for expedited healing response in various oral tissues and how they are impacted by systemic diseases. Depending upon the types of oral tissue, wound healing may occur by predominantly re-eptihelialization, by re-epithelialization with substantial new connective tissue formation, or by a a combination of both plus new bone formation. As a result, the cells involved differ and are impacted by systemic diaseses in various ways. Diabetes mellitus is a prevalent metabolic disorder that impairs barrier function and healing responses throughout the human body. In the oral cavity, diabetes is a known risk factor for exacerbated periodontal disease and delayed wound healing, which includes both soft and hard tissue components. Here, we review the mechanisms of diabetic oral wound healing, particularly on impaired keratinocyte proliferation and migration, altered level of inflammation, and reduced formation of new connective tissue and bone. In particular, diabetes inhibits the expression of mitogenic growth factors whereas that of pro-inflammatory cytokines is elevated through epigenetic mechanisms. Moreover, hyperglycemia and oxidative stress induced by diabetes prevents the expansion of mesengenic cells that are involved in both soft and hard tissue oral wounds. A better understanding of how diabetes influences the healing processes is crucial for the prevention and treatment of diabetes-associated oral complications.
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Affiliation(s)
- Kang I Ko
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, 19104
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland
| | - Dana T Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, 19104.
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Guetta O, Vakhrushev A, Dukhno O, Ovnat A, Sebbag G. New results on the safety of laparoscopic sleeve gastrectomy bariatric procedure for type 2 diabetes patients. World J Diabetes 2019; 10:78-86. [PMID: 30788045 PMCID: PMC6379729 DOI: 10.4239/wjd.v10.i2.78] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/08/2019] [Accepted: 01/23/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND It has been established that bariatric surgery, including laparoscopic sleeve gastrectomy (LSG), has a positive impact on type 2 diabetes mellitus (T2DM). However, less frequently T2DM is reported as a risk factor for complications with this type of surgery.
AIM To evaluate the safety of LSG in T2DM.
METHODS A retrospective cohort study was conducted over patients admitted for LSG from January 2008 to May 2015. Data was collected through digitized records. Any deviation from normal postoperative care within the first 60 d was defined as an early complication, and further categorized into mild or severe.
RESULTS Nine hundred eighty-four patients underwent LSG, among these 143 (14.5%) were diagnosed with T2DM. There were 19 complications in the T2DM group (13.3%) compared to 59 cases in the non-T2DM (7.0%). Out of 19 complications in the T2DM group, 12 were mild (8.4%) and 7 were severe (4.9%). Compared to the non-T2DM group, patients had a higher risk for mild complications (Odds-ratio 2.316, CI: 1.163-4.611, P = 0.017), but not for severe ones (P = 0.615). An increase of 1% in hemoglobin A1c levels was associated with a 40.7% increased risk for severe complications (P = 0.013, CI: 1.074-1.843) but not for mild ones.
CONCLUSION Our data suggest that LSG is relatively safe for patients with T2DM. Whether pre-operative control of hemoglobin A1c level will lower the complications rate has to be prospectively studied.
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Affiliation(s)
- Ohad Guetta
- Department General Surgery B, Soroka University Medical Center, Be’er Sheva 8457108, Israel
| | - Alex Vakhrushev
- Department General Surgery B, Soroka University Medical Center, Be’er Sheva 8457108, Israel
| | - Oleg Dukhno
- Department General Surgery B, Soroka University Medical Center, Be’er Sheva 8457108, Israel
| | - Amnon Ovnat
- Department General Surgery B, Soroka University Medical Center, Be’er Sheva 8457108, Israel
| | - Gilbert Sebbag
- Department General Surgery B, Soroka University Medical Center, Be’er Sheva 8457108, Israel
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