1.A Review of Molecular Markers of Mature Odontoblasts and Their Role in Dentin Repair and Regeneration Research
Yoon Seon LEE ; Joo-Cheol PARK ; Won-Jun SON ; Deog-Gyu SEO
Journal of Korean Dental Science 2024;17(4):163-173
The terminal differentiation of odontoblasts is characterized by specific molecular markers that reflect their functional maturity.This review explores both canonical markers, such as Dentin Sialophosphoprotein (DSPP), Dentin Matrix Protein 1 (DMP1), Nestin, and Alkaline Phosphatase (ALP), and emerging markers like MAP1B, MAP Tau, and β-catenin. These markers offer valuable insights into the regulation of odontoblast differentiation and the maintenance of their polarized, dentin-secreting phenotype. The review further discusses the experimental applications of these markers in in vitro studies, dental tissue engineering, regenerative endodontics, and drug discovery. Canonical markers are utilized to confirm the maturity of odontoblasts and evaluate bioengineered tissues, while emerging markers reveal potential new targets for enhancing dentin repair and regeneration. Additionally, the role of signaling pathways, including Wnt5a, BMP, and integrin-mediated pathways, in supporting the structural and functional characteristics of mature odontoblasts is discussed. By consolidating current knowledge on these markers and pathways, this review aims to advance the understanding of odontoblast biology and contribute to the development of innovative strategies for dental tissue engineering and regenerative therapies.
2.A Review of Molecular Markers of Mature Odontoblasts and Their Role in Dentin Repair and Regeneration Research
Yoon Seon LEE ; Joo-Cheol PARK ; Won-Jun SON ; Deog-Gyu SEO
Journal of Korean Dental Science 2024;17(4):163-173
The terminal differentiation of odontoblasts is characterized by specific molecular markers that reflect their functional maturity.This review explores both canonical markers, such as Dentin Sialophosphoprotein (DSPP), Dentin Matrix Protein 1 (DMP1), Nestin, and Alkaline Phosphatase (ALP), and emerging markers like MAP1B, MAP Tau, and β-catenin. These markers offer valuable insights into the regulation of odontoblast differentiation and the maintenance of their polarized, dentin-secreting phenotype. The review further discusses the experimental applications of these markers in in vitro studies, dental tissue engineering, regenerative endodontics, and drug discovery. Canonical markers are utilized to confirm the maturity of odontoblasts and evaluate bioengineered tissues, while emerging markers reveal potential new targets for enhancing dentin repair and regeneration. Additionally, the role of signaling pathways, including Wnt5a, BMP, and integrin-mediated pathways, in supporting the structural and functional characteristics of mature odontoblasts is discussed. By consolidating current knowledge on these markers and pathways, this review aims to advance the understanding of odontoblast biology and contribute to the development of innovative strategies for dental tissue engineering and regenerative therapies.
3.A Review of Molecular Markers of Mature Odontoblasts and Their Role in Dentin Repair and Regeneration Research
Yoon Seon LEE ; Joo-Cheol PARK ; Won-Jun SON ; Deog-Gyu SEO
Journal of Korean Dental Science 2024;17(4):163-173
The terminal differentiation of odontoblasts is characterized by specific molecular markers that reflect their functional maturity.This review explores both canonical markers, such as Dentin Sialophosphoprotein (DSPP), Dentin Matrix Protein 1 (DMP1), Nestin, and Alkaline Phosphatase (ALP), and emerging markers like MAP1B, MAP Tau, and β-catenin. These markers offer valuable insights into the regulation of odontoblast differentiation and the maintenance of their polarized, dentin-secreting phenotype. The review further discusses the experimental applications of these markers in in vitro studies, dental tissue engineering, regenerative endodontics, and drug discovery. Canonical markers are utilized to confirm the maturity of odontoblasts and evaluate bioengineered tissues, while emerging markers reveal potential new targets for enhancing dentin repair and regeneration. Additionally, the role of signaling pathways, including Wnt5a, BMP, and integrin-mediated pathways, in supporting the structural and functional characteristics of mature odontoblasts is discussed. By consolidating current knowledge on these markers and pathways, this review aims to advance the understanding of odontoblast biology and contribute to the development of innovative strategies for dental tissue engineering and regenerative therapies.
4.A Review of Molecular Markers of Mature Odontoblasts and Their Role in Dentin Repair and Regeneration Research
Yoon Seon LEE ; Joo-Cheol PARK ; Won-Jun SON ; Deog-Gyu SEO
Journal of Korean Dental Science 2024;17(4):163-173
The terminal differentiation of odontoblasts is characterized by specific molecular markers that reflect their functional maturity.This review explores both canonical markers, such as Dentin Sialophosphoprotein (DSPP), Dentin Matrix Protein 1 (DMP1), Nestin, and Alkaline Phosphatase (ALP), and emerging markers like MAP1B, MAP Tau, and β-catenin. These markers offer valuable insights into the regulation of odontoblast differentiation and the maintenance of their polarized, dentin-secreting phenotype. The review further discusses the experimental applications of these markers in in vitro studies, dental tissue engineering, regenerative endodontics, and drug discovery. Canonical markers are utilized to confirm the maturity of odontoblasts and evaluate bioengineered tissues, while emerging markers reveal potential new targets for enhancing dentin repair and regeneration. Additionally, the role of signaling pathways, including Wnt5a, BMP, and integrin-mediated pathways, in supporting the structural and functional characteristics of mature odontoblasts is discussed. By consolidating current knowledge on these markers and pathways, this review aims to advance the understanding of odontoblast biology and contribute to the development of innovative strategies for dental tissue engineering and regenerative therapies.
5.Influence of depth of cavity on color blending effect of structurally colored resin
Ji-Hyun LEE ; Jae-Hoon KIM ; Deog-Gyu SEO ; Sung-Ae SON ; Jeong-Kil PARK
Korean Journal of Dental Materials 2023;50(4):191-203
Omnichroma (OMN) is a recently introduced structurally colored resin composite that expresses color based on the tooth structure surrounding the cavity. This study aims to investigate the effects of varying the cavity depth on the color blending of OMN.Conventional resin composite (Filtek Z250 in the A2, A3, and A4 shades) and structurally colored resin (Omnichroma) were used. Two types of specimens were prepared using custom silicone molds (diameter: 8 mm, thickness: 2, 3, 4 mm). Single specimens (diameter: 8 mm) comprised only Z250 in the A2, A3, A4 or OMN (n=10 each). Dual specimens comprised an outer ring (diameter : 8 mm) of Z250 in the A2, A3, or A4 and an inner hole (diameter: 4 mm) filled with OMN to different depths (1, 2, 3, or 4 mm, n=10 per shade per thickness). The colors were measuredusing the Commission Internationale d’Eclairage (CIE) L*a*b* system. Color differences (ΔE) according to the cavity depth and translucency parameter were measured.The ΔE values of dual specimens with the A2, A3, and A4 shades of Z250 were 1.66–5.07, 0.50–2.57, and 1.26– 3.48, respectively. At the same specimen thickness, ΔE increased with increasing cavity depth. At the same cavity depth, ΔE increased with decreasing thickness of the bottom of the restoration. The highest translucency parameterwas observed for 2 mm-thick OMN. The color blending of OMN increased with decreasing cavity depth in specimens of the same thickness, and with increasing bottom thickness of the restoration at the same cavity depth.
6.Safety and efficacy of nilotinib in adult patients with chronic myeloid leukemia: a post-marketing surveillance study in Korea
Seo-Yeon AHN ; Sang Kyun SON ; Gyu Hyung LEE ; Inho KIM ; June-Won CHEONG ; Won Sik LEE ; Byung Soo KIM ; Deog-Yeon JO ; Chul Won JUNG ; Chu Myoung SEONG ; Jae Hoon LEE ; Young Jin YUH ; Min Kyoung KIM ; Hun-Mo RYOO ; Moo-Rim PARK ; Su-Hee CHO ; Hoon-Gu KIM ; Dae Young ZANG ; Jinny PARK ; Hawk KIM ; Seryeon LEE ; Sung-Hyun KIM ; Myung Hee CHANG ; Ho Sup LEE ; Chul Won CHOI ; Jihyun KWON ; Sung-Nam LIM ; Suk-Joong OH ; Inkyung JOO ; Dong-Wook KIM
Blood Research 2022;57(2):144-151
Background:
Nilotinib is a tyrosine kinase inhibitor approved by the Ministry of Food and Drug Safety for frontline and 2nd line treatment of Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML). This study aimed to confirm the safety and efficacy of nilotinib in routine clinical practice within South Korea.
Methods:
An open-label, multicenter, single-arm, 12-week observational post-marketing surveillance (PMS) study was conducted on 669 Korean adult patients with Ph + CML from December 24, 2010, to December 23, 2016. The patients received nilotinib treatment in routine clinical practice settings. Safety was evaluated by all types of adverse events (AEs) during the study period, and efficacy was evaluated by the complete hematological response (CHR) and cytogenetic response.
Results:
During the study period, AEs occurred in 61.3% (410 patients, 973 events), adverse drug reactions (ADRs) in 40.5% (271/669 patients, 559 events), serious AEs in 4.5% (30 patients, 37 events), and serious ADRs in 0.7% (5 patients, 8 events). Furthermore, unexpected AEs occurred at a rate of 6.9% (46 patients, 55 events) and unexpected ADRs at 1.2% (8 patients, 8 events). As for the efficacy results, CHR was achieved in 89.5% (442/494 patients), and minor cytogenetic response or major cytogenetic response was achieved in 85.8% (139/162 patients).
Conclusion
This PMS study shows consistent results in terms of safety and efficacy compared with previous studies. Nilotinib was well tolerated and efficacious in adult Korean patients with Ph + CML in routine clinical practice settings.
7.Serum 25-hydroxyvitamin D levels are associated with dental caries experience in Korean adolescents: the 2010 ~ 2014 Korean National Health and Nutrition Examination Surveys.
Soyeon CHOI ; Deog Gyu SEO ; Ji Yun HWANG
Journal of Nutrition and Health 2018;51(4):287-294
PURPOSE: This study was conducted to evaluate the association between serum 25-hydroxyvitamin D (25(OH)D) levels and dental caries experience in Korean adolescents based on the 2010 ~ 2014 Korean National Health and Nutrition Examination Surveys. METHODS: The study subjects were 2,655 Korean adolescents aged 10 to 18 years. Subjects were classified into four groups according to their serum 25(OH)D levels. We used logistic regression to evaluate the relationship between vitamin D and for dental caries experience after adjusting for age, household income level, recipient of basic livelihood, tooth brushing and visiting dental clinics. RESULT: Multiple logistic regression analysis showed that serum 25(OH)D insufficiency (20 ng/mL≤25(OH)D<30 ng/mL) was associated with increased odd ratios (ORs) for dental caries experience in boys (OR = 2.577, 95% CI = 1.013–6.557), compared with serum 25(OH)D sufficiency (25(OH)D≥30.0 ng/mL). CONCLUSION: The serum 25(OH)D levels were found to be related to risk of dental caries experience in Korean adolescent boys.
Adolescent*
;
Dental Caries*
;
Dental Clinics
;
Family Characteristics
;
Humans
;
Logistic Models
;
Tooth
;
Vitamin D
8.Clinical Practice Guideline for Stroke Rehabilitation in Korea 2016.
Deog Young KIM ; Yun Hee KIM ; Jongmin LEE ; Won Hyuk CHANG ; Min Wook KIM ; Sung Bom PYUN ; Woo Kyoung YOO ; Suk Hoon OHN ; Ki Deok PARK ; Byung Mo OH ; Seong Hoon LIM ; Kang Jae JUNG ; Byung Ju RYU ; Sun IM ; Sung Ju JEE ; Han Gil SEO ; Ueon Woo RAH ; Joo Hyun PARK ; Min Kyun SOHN ; Min Ho CHUN ; Hee Suk SHIN ; Seong Jae LEE ; Yang Soo LEE ; Si Woon PARK ; Yoon Ghil PARK ; Nam Jong PAIK ; Sam Gyu LEE ; Ju Kang LEE ; Seong Eun KOH ; Don Kyu KIM ; Geun Young PARK ; Yong Il SHIN ; Myoung Hwan KO ; Yong Wook KIM ; Seung Don YOO ; Eun Joo KIM ; Min Kyun OH ; Jae Hyeok CHANG ; Se Hee JUNG ; Tae Woo KIM ; Won Seok KIM ; Dae Hyun KIM ; Tai Hwan PARK ; Kwan Sung LEE ; Byong Yong HWANG ; Young Jin SONG
Brain & Neurorehabilitation 2017;10(Suppl 1):e11-
“Clinical Practice Guideline for Stroke Rehabilitation in Korea 2016” is the 3rd edition of clinical practice guideline (CPG) for stroke rehabilitation in Korea, which updates the 2nd edition published in 2014. Forty-two specialists in stroke rehabilitation from 21 universities and 4 rehabilitation hospitals and 4 consultants participated in this update. The purpose of this CPG is to provide optimum practical guidelines for stroke rehabilitation teams to make a decision when they manage stroke patients and ultimately, to help stroke patients obtain maximal functional recovery and return to the society. The recent two CPGs from Canada (2015) and USA (2016) and articles that were published following the 2nd edition were used to develop this 3rd edition of CPG for stroke rehabilitation in Korea. The chosen articles' level of evidence and grade of recommendation were decided by the criteria of Scotland (2010) and the formal consensus was derived by the nominal group technique. The levels of evidence range from 1++ to 4 and the grades of recommendation range from A to D. Good Practice Point was recommended as best practice based on the clinical experience of the guideline developmental group. The draft of the developed CPG was reviewed by the experts group in the public hearings and then revised. “Clinical Practice Guideline for Stroke Rehabilitation in Korea 2016” consists of ‘Chapter 1; Introduction of Stroke Rehabilitation’, ‘Chapter 2; Rehabilitation for Stroke Syndrome, ‘Chapter 3; Rehabilitation for Returning to the Society’, and ‘Chapter 4; Advanced Technique for Stroke Rehabilitation’. “Clinical Practice Guideline for Stroke Rehabilitation in Korea 2016” will provide direction and standardization for acute, subacute and chronic stroke rehabilitation in Korea.
Canada
;
Consensus
;
Consultants
;
Humans
;
Korea*
;
Practice Guidelines as Topic
;
Rehabilitation*
;
Scotland
;
Specialization
;
Stroke*
9.Epigenetics: general characteristics and implications for oral health.
Ji Yun SEO ; Yoon Jung PARK ; Young Ah YI ; Ji Yun HWANG ; In Bog LEE ; Byeong Hoon CHO ; Ho Hyun SON ; Deog Gyu SEO
Restorative Dentistry & Endodontics 2015;40(1):14-22
Genetic information such as DNA sequences has been limited to fully explain mechanisms of gene regulation and disease process. Epigenetic mechanisms, which include DNA methylation, histone modification and non-coding RNAs, can regulate gene expression and affect progression of disease. Although studies focused on epigenetics are being actively investigated in the field of medicine and biology, epigenetics in dental research is at the early stages. However, studies on epigenetics in dentistry deserve attention because epigenetic mechanisms play important roles in gene expression during tooth development and may affect oral diseases. In addition, understanding of epigenetic alteration is important for developing new therapeutic methods. This review article aims to outline the general features of epigenetic mechanisms and describe its future implications in the field of dentistry.
Base Sequence
;
Biology
;
Dental Research
;
Dentistry
;
DNA Methylation
;
Epigenomics*
;
Gene Expression
;
Histones
;
Oral Health*
;
Periodontitis
;
RNA, Untranslated
;
Tooth
10.Multiple transcripts of anoctamin genes expressed in the mouse submandibular salivary gland.
Ji Hye HAN ; Hye Mi KIM ; Deog Gyu SEO ; Gene LEE ; Eui Bae JEUNG ; Frank H YU
Journal of Periodontal & Implant Science 2015;45(2):69-75
PURPOSE: Salivary fluid formation is primarily driven by Ca2+-activated, apical efflux of chloride into the lumen of the salivary acinus. The anoctamin1 protein is an anion channel with properties resembling the endogenous calcium-activated chloride channels. In order to better understand the role of anoctamin proteins in salivary exocrine secretion, the expression of the ten members of the anoctamin gene family in the mouse submandibular gland was studied. METHODS: Total RNA extracted from mouse submandibular salivary glands was reverse transcribed using primer pairs to amplify the full-length coding regions of each anoctamin gene and was subcloned into plasmid vectors for DNA sequencing. Alternative splice variants were also screened by polymerase chain reaction using primer pairs that amplified six overlapping regions of the complementary DNA of each anoctamin gene, spanning multiple exons. RESULTS: Multiple anoctamin transcripts were found in the mouse submandibular salivary gland, including full-length transcripts of anoctamin1, anoctamin3, anoctamin4, anoctamin5, anoctamin6, anoctamin9, and anoctamin10. Exon-skipping splicing in the N-terminal exons of the anoctamins1, anoctamin5, and anoctamin6 genes resulted in multiple alternative splice variants. No expression of anoctamin2, anoctamin7, or anoctamin8 was found. CONCLUSIONS: The predominant anoctamin transcript expressed in the mouse submandibular gland is anoctamin1ac. The chloride channel protein produced by anoctamin1ac is likely responsible for the Ca2+-activated chloride efflux, which is the rate-limiting step in salivary exocrine secretion.
Alternative Splicing
;
Animals
;
Chloride Channels
;
Clinical Coding
;
DNA, Complementary
;
Exons
;
Humans
;
Mice*
;
Plasmids
;
Polymerase Chain Reaction
;
RNA
;
Salivary Glands*
;
Sequence Analysis, DNA
;
Submandibular Gland

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