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Ptip safeguards the epigenetic control of skeletal stem cell quiescence and potency in skeletogenesis

Science Bulletin 2024年第13期69卷 2099-2113页

作者： Jianfei Liang Jing Wang Bingdong Sui Yibo Tong Jihua Chai Qin Zhou Chenxi Zheng Hao Wang Liang Kong Haojian Zhang Yi Bai State Key Laboratory of oral&maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyTaikang Center for Life and Medical SciencesWuhan UniversityWuhan 430079China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine research College of StomatologyXi’an Jiaotong UniversityXi’an 710004China Department of Implant Dentistry College of StomatologyXi’an Jiaotong UniversityXi’an 710004China State Key Laboratory of oral&maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyShaanxi International Joint Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunming 650223China State Key Laboratory of oral&maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of Oral and Maxillofacial SurgerySchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China Department of Hematology Zhongnan HospitalWuhan UniversityWuhan 430079China Frontier Science center for Immunology and Metabolism Medical Research InstituteWuhan UniversityWuhan 430079China Taikang center for Life and medical sciences Wuhan UniversityWuhan 430079China

Stem cells remain in a quiescent state for long-term maintenance and preservation of potency;this process requires fine-tuning regulatory *** this study,we identified the epigenetic landscape along the developmental trajectory of skeletal stem cells(SSCs)in skeletogenesis governed by a key regulator,Ptip(also known as Paxip1,Pax interaction with transcription-activation domain protein-1).Our results showed that Ptip is required for maintaining the quiescence and potency of SSCs,and loss of Ptip in type II collagen(Col2)^(+)progenitors causes abnormal activation and differentiation of SSCs,impaired growth plate morphogenesis,and long bone *** also found that Ptip suppressed the glycolysis of SSCs through downregulation of phosphoglycerate kinase 1(Pgk1)by repressing histone H3 lysine 27 acetylation(H3K27ac)at the promoter ***,inhibition of glycolysis improved the function of SSCs despite Ptip *** the best of our knowledge,this is the first study to establish an epigenetic framework based on Ptip,which safeguards skeletal stem cell quiescence and potency through metabolic *** framework is expected to improve SSC-based treatments of bone developmental disorders.

关键词： Skeletal stem cells Bone development Epigenetics Ptip Glycolysis

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Digital pathology-based artificial intelligence models for differential diagnosis and prognosis of sporadic odontogenic keratocysts

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International Journal of oral Science 2024年第2期16卷 349-358页

作者： Xinjia Cai Heyu Zhang Yanjin Wang Jianyun Zhang Tiejun Li Department of oral Pathology Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijingChina Central Laboratory Peking University School and Hospital of StomatologyBeijingChina Department of oral Pathology Shanghai Stomatological Hospital&School of StomatologyFudan UniversityShanghaiChina research Unit of Precision Pathologic Diagnosis in Tumors of the oral and maxillofacial Regions Chinese Academy of Medical Sciences(2019RU034)BeijingChina

Odontogenic keratocyst(OKC)is a common jaw cyst with a high recurrence *** combined with basal cell carcinoma as well as skeletal and other developmental abnormalities is thought to be associated with Gorlin ***,OKC needs to be differentiated from orthokeratinized odontogenic cyst and other jaw *** of the different prognosis,differential diagnosis of several cysts can contribute to clinical *** collected 519 cases,comprising a total of 2157 hematoxylin and eosinstained images,to develop digital pathology-based artificial intelligence(AI)models for the diagnosis and prognosis of *** Inception_v3 neural network was utilized to train and test models developed from patch-level ***,whole slide imagelevel AI models were developed by integrating deep learning-generated pathology features with several machine learning *** AI models showed great performance in the diagnosis(AUC=0.935,95%CI:0.898–0.973)and prognosis(AUC=0.840,95%CI:0.751–0.930)of *** advantages of multiple slides model for integrating of histopathological information are demonstrated through a comparison with the single slide ***,the study investigates the correlation between AI features generated by deep learning and pathological findings,highlighting the interpretative potential of AI models in the ***,we have developed the robust diagnostic and prognostic models for *** AI model that is based on digital pathology shows promise potential for applications in odontogenic diseases of the jaw.

关键词： diagnosis pathology prognosis

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Synthesis and potential osteogenic applications of Wnt3a-loaded ZIF-8 nanoparticles

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Chinese Chemical Letters 2024年第3期35卷 399-405页

作者： Hengfei Wang Song Chen Zihan He Junyu Chen Zhou Zhu Qianbing Wan Jian Wang Xibo Pei State Key Laboratory of oral diseases National Clinical Research Center for Oral DiseasesDepartment of ProsthodonticsWest China Hospital of StomatologySichuan UniversityChengdu 610041China Chongqing Key Laboratory of oral diseases and Biomedical sciences Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher EducationStomatological Hospital of Chongqing Medical UniversityChongqing 400016China

The Wnt signaling pathway plays a critical role in bone homeostasis,and the related protein therapy strategies have been reported to have great potential in osseointegration;however,they face formidable challenges such as complex external environments and unavoidable protein *** this work,we report a novel approach combining the synthesis of metal–organic frameworks(MOFs)and protein encapsulation in a one-pot process based on zeolitic imidazolate framework-8(ZIF-8)and Wnt3a protein,with improved biomechanical behavior and enhanced protein biological *** combination was designed to enhance the Wnt3a protein function through the improved chemical stability provided by the ZIF-8 ***,the zinc ions contained in the ZIF-8 crystals induced bone homeostasis,further favoring the *** results showed that the Wnt3a protein-loaded ZIF-8 crystals served as efficient drug delivery vehicles to promote osteogenesis,preventing protein *** particular,Wnt3a-loaded ZIF-8 nanoparticles(Wnt3a@ZIF-8 NPs)had higher efficacy on bone marrow mesenchymal stem cells(BMSCs)than ZIF-8 NPs or Wnt3a proteins,contributing to the osteogenesis through ZIF-8 crystals and intracellular Wnt3a proteins released from Wnt3a@ZIF-8 ***,polymerase chain reaction(PCR)analysis showed that the osteogenic pathways were ***,the present one-pot process can open up new avenues to develop signaling protein-delivery systems for applications in protein therapy strategies.

关键词： Metal–organic frameworks Nanoparticle Drug release Osteogenesis Bone defects

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Lung microbiome:new insights into the pathogenesis of respiratory diseases

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Signal Transduction and Targeted Therapy 2024年第2期9卷 652-678页

作者： Ruomeng Li Jing Li Xikun Zhou Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China State Key Laboratory of oral diseases National Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduSichuan 610041China

The lungs were long thought to be sterile until technical advances uncovered the presence of the lung microbial *** microbiome of healthy lungs is mainly derived from the upper respiratory tract(URT)microbiome but also has its own characteristic *** selection mechanisms in the lung,including clearance by coughing,pulmonary macrophages,the oscillation of respiratory cilia,and bacterial inhibition by alveolar surfactant,keep the microbiome transient and mobile,which is different from the microbiome in other *** pulmonary bacteriome has been intensively studied recently,but relatively little research has focused on the mycobiome and *** up-to-date review retrospectively summarizes the lung microbiome’s history,composition,and *** focus on the interaction of the lung microbiome with the oropharynx and gut microbiome and emphasize the role it plays in the innate and adaptive immune *** importantly,we focus on multiple respiratory diseases,including asthma,chronic obstructive pulmonary disease(COPD),fibrosis,bronchiectasis,and *** impact of the lung microbiome on coronavirus disease 2019(COVID-19)and lung cancer has also been comprehensively ***,by summarizing the therapeutic potential of the lung microbiome in lung diseases and examining the shortcomings of the field,we propose an outlook of the direction of lung microbiome research.

关键词： respiratory diseases Lung

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Expert consensus on pediatric orthodontic therapies of malocclusions in children

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International Journal of oral Science 2024年第2期16卷 186-196页

作者： Chenchen Zhou Peipei Duan Hong He Jinlin Song Min Hu Yuehua Liu Yan Liu Jie Guo Fang Jin Yang Cao Lingyong Jiang Qingsong Ye Min Zhu Beizhan Jiang Wenhua Ruan Xiao Yuan Huang Li Rui Zou Yulou Tian Li Gao Rui Shu Jianwei Chen Renkai Liu Shujuan Zou Xiaobing Li State Key Laboratory of oral diseases&National center for Stomatology&National Clinical research center for oral diseases&Department of Pediatric Dentistry West China Hospital of StomatologySichuan UniversityChengduChina State Key Laboratory of oral diseases&National center for Stomatology&National Clinical research center for oral diseases&Department of Orthodontics West China Hospital of StomatologySichuan UniversityChengduChina State Key Laboratory of oral and maxillofacial Reconstruction and Regeneration&Key Laboratory of oral Biomedicine Ministry of Education&Hubei Key Laboratory of Stomatology&Department of Orthodontics&center for Dentofacial Development and Sleep Medicine School and Hospital of StomatologyWuhan UniversityWuhanChina Chongqing Key Laboratory of oral diseases and Biomedical sciences&Chongqing Municipal Key Laboratory of oral Biomedical Engineering of Higher Education Stomatological Hospital of Chongqing Medical UniversityChongqing Medical University&College of StomatologyChongqing Medical UniversityChongqingChina Department of Orthodontics Hospital of StomatologyJilin UniversityChangchunChina Department of Orthodontic&oral Biomedical Engineering Laboratory Shanghai Stomatological HospitalFudan UniversityShanghaiChina Department of Orthodontics Central LaboratoryPeking University School and Hospital for Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical Devices&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental Materials&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijingChina Department of Orthodontics School and Hospital of StomatologyCollege of MedicineShandong University&Shandong Key Laboratory of Oral Tissue Regeneration&Shandong Engineering Laboratory for Dental Materials and Oral Tissue

Malocclusion,identified by the World Health Organization(WHO)as one of three major oral diseases,profoundly impacts the dental-maxillofacial functions,facial esthetics,and long-term development of~260 million children in *** its physical manifestations,malocclusion also significantly influences the psycho-social well-being of these *** intervention in malocclusion can foster an environment conducive to dental-maxillofacial development and substantially decrease the incidence of malocclusion or reduce the severity and complexity of malocclusion in the permanent dentition,by mitigating the negative impact of abnormal environmental influences on the *** orthodontic treatment encompasses accurate identification and treatment of dental and maxillofacial morphological and functional abnormalities during various stages of dental-maxillofacial development,ranging from fetal stages to the early permanent dentition *** an economic and societal standpoint,the urgency for effective early orthodontic treatments for malocclusions in childhood cannot be overstated,underlining its profound practical and social *** consensus paper discusses the characteristics and the detrimental effects of malocclusion in children,emphasizing critical need for early *** elaborates on corresponding core principles and fundamental approaches in early orthodontics,proposing comprehensive guidance for preventive and interceptive orthodontic treatment,serving as a reference for clinicians engaged in early orthodontic treatment.

关键词： permanent stated children

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Genomic alterations in oral multiple primary cancers

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International Journal of oral Science 2024年第1期16卷 145-153页

作者： Wen Wang Qian Wang Shiying Sun Pengfei Zhang Yuyu Li Weimin Lin Qiwen Li Xiao Zhang Zhe Ma Haiyan Lu Hebei Key Laboratory of Stomatology Hebei Clinical Research Center for Oral DiseasesHebei Medical UniversityShijiazhuangChina Department of Orthodontics School and Hospital of StomatologyHebei Medical UniversityShijiazhuangChina State Key Laboratory of oral diseases&National center for Stomatology&National Clinical research center for oral diseases&West China Hospital of Stomatology Sichuan UniversityChengduChina Department of Preventive Dentistry School and Hospital of StomatologyHebei Medical UniversityShijiazhuangHebeiChina

oral squamous cell carcinoma (OSCC) is the predominant type of oral cancer, while some patients may develop oral multiple primary cancers (MPCs) with unclear etiology. This study aimed to investigate the clinicopathological characteristics and genomic alterations of oral MPCs. Clinicopathological data from patients with oral single primary carcinoma (SPC, n=202) and oral MPCs (n=34) were collected and compared. Copy number alteration (CNA) analysis was conducted to identify chromosomal-instability differences among oral MPCs, recurrent OSCC cases, and OSCC patients with lymph node metastasis. Whole-exome sequencing was employed to identify potential unique gene mutations in oral MPCs patients. Additionally, CNA and phylogenetic tree analyses were used to gain preliminary insights into the molecular characteristics of different primary tumors within individual patients. Our findings revealed that, in contrast to oral SPC, females predominated the oral MPCs (70.59%), while smoking and alcohol use were not frequent in ***, long-term survival outcomes were poorer in oral MPCs. From a CNA perspective, no significant differences were observed between oral MPCs patients and those with recurrence and lymph node metastasis. In addition to commonly mutated genes such as CASP8, TP53 and MUC16, in oral MPCs we also detected relatively rare mutations, such as HS3ST6 and RFPL4A. Furthermore, this study also demonstrated that most MPCs patients exhibited similarities in certain genomic regions within individuals, and distinct differences of the similarity degree were observed between synchronous and metachronous oral MPCs.

关键词： alterations metastasis oral

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The spatial transcriptomic landscape of human gingiva in health and periodontitis

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Science China(Life sciences) 2024年第4期67卷 720-732页

作者： Zongshan Shen Ran Zhang Yunjia Huang Jiayao Chen Mengjun Yu Chunhua Li Yong Zhang Lingling Chen Xin Huang Jichen Yang Zhengmei Lin Songlin Wang Bin Cheng Hospital of Stomatology Guangdong Provincial Key Laboratory of StomatologyGuanghua School of StomatologySun Yat-sen UniversityGuangzhou 510055China Beijing Laboratory of oral Health Capital Medical UniversityBeijing 100050China Department of oral Pathology Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijing 100050China research Unit of Precision Pathologic Diagnosis in Tumors of the oral and maxillofacial Regions Chinese Academy of Medical SciencesBeijing 100050China BGI-Qingdao BGI-ShenzhenQingdao 266555China

The gingiva is a key oral barrier that protects oral tissues from various stimuli.A loss of gingival tissue homeostasis causes periodontitis,one of the most prevalent inflammatory diseases in *** human gingiva exists as a complex cell network comprising specialized *** understand the tissue-specific pathophysiology of the gingiva,we applied a recently developed spatial enhanced resolution omics-sequencing(Stereo-seq)technique to obtain a spatial transcriptome(ST)atlas of the gingiva in healthy individuals and periodontitis *** utilizing Stereo-seq,we identified the major cell types present in the gingiva,which included epithelial cells,fibroblasts,endothelial cells,and immune cells,as well as subgroups of epithelial cells and immune *** further observed that inflammation-related signalling pathways,such as the JAK-STAT and NF-κB signalling pathways,were significantly upregulated in the endothelial cells of the gingiva of periodontitis patients compared with those of healthy ***,we characterized the spatial distribution of periodontitis risk genes in the gingiva and found that the expression of IFI16 was significantly increased in endothelial cells of inflamed *** conclusion,our Stereo-seq findings may facilitate the development of innovative therapeutic strategies for periodontitis by mapping periodontitis-relevant genes and pathways and effector cells.

关键词： spatial transcriptomics gingiva periodontal disease periodontitis risk genes

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The role and applications of extracellular vesicles in osteoporosis

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Bone research 2024年第1期12卷 62-77页

作者： Fei Fang Jie Yang Jiahe Wang Tiantian Li Erxiang Wang Demao Zhang Xiaoheng Liu Chenchen Zhou Institute of Biomedical Engineering West China School of Basic Medical Sciences&Forensic MedicineSichuan UniversityChengdu 610041China State Key Laboratory of oral diseases National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu 610041China

Osteoporosis is a widely observed condition characterized by the systemic deterioration of bone mass and microarchitecture,which increases patient susceptibility to fragile *** intricate mechanisms governing bone homeostasis are substantially impacted by extracellular vesicles(EVs),which play crucial roles in both pathological and physiological *** derived from various sources exert distinct effects on ***,EVs released by osteoblasts,endothelial cells,myocytes,and mesenchymal stem cells contribute to bone formation due to their unique cargo of proteins,miRNAs,and ***,EVs secreted by osteoclasts and immune cells promote bone resorption and inhibit bone ***,the use of EVs as therapeutic modalities or biomaterials for diagnosing and managing osteoporosis is ***,we review the current understanding of the impact of EVs on bone homeostasis,including the classification and biogenesis of EVs and the intricate regulatory mechanisms of EVs in ***,we present an overview of the latest research progress on diagnosing and treating osteoporosis by using ***,we discuss the challenges and prospects of translational research on the use of EVs in osteoporosis.

关键词： osteoporosis homeostasis biomaterials

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Expert consensus on irrigation and intracanal medication in root canal therapy

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International Journal of oral Science 2024年第1期16卷 26-35页

作者： Xiaoying Zou Xin Zheng Yuhong Liang Chengfei Zhang Bing Fan Jingping Liang Junqi Ling Zhuan Bian Qing Yu Benxiang Hou Zhi Chen Xi Wei Lihong Qiu Wenxia Chen Wenxi He Xin Xu Liuyan Meng Chen Zhang Liming Chen Shuli Deng Yayan Lei Xiaoli Xie Xiaoyan Wang Jinhua Yu Jin Zhao Song Shen Xuedong Zhou Lin Yue Department of Cariology and Endodontology Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Laboratory for Digital and Material Technology of Stomatology&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental MaterialsBeijingChina center of Stomatology Peking University HospitalBeijingChina State Key Laboratory of oral diseases&National center for Stomatology&National Clinical research center for oral diseases&West China Hospital of Stomatology Sichuan UniversityChengduChina Department of Emergency Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Laboratory for Digital and Material Technology of Stomatology&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental MaterialsBeijingChina Restorative Dental sciences EndodonticsFaculty of DentistryThe University of Hong KongPok Fu LamHong Kong SARChina State Key Laboratory of oral&maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyWuhan UniversityWuhanChina Department of Endodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Clinical Research Center for Oral DiseasesNational Center for StomatologyShanghai Key Laboratory of StomatologyShanghaiChina Department of Operative Dentistry and Endodontics Hospital of StomatologyGuanghua School of StomatologySun Yat-Sen University&Guangdong Provincial Key Laboratory of StomatologyGuangzhouChina State Key Laboratory of oral&maxillofacial Reconstruction and R

Chemical cleaning and disinfection are crucial steps for eliminating infection in root canal treatment. However, irrigant selection or irrigation procedures are far from clear. The vapor lock effect in the apical region has yet to be solved, impeding irrigation efficacy and resulting in residual infections and compromised treatment outcomes.

关键词： treatment irrigation Expert

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Epidemiological analysis of the clinicopathologic characteristics,treatment,and prognosis of 2648 jaw cysts in West China

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Chinese medical Journal 2024年第9期137卷 1124-1126页

作者： Hui Li Zuoqiang Liu Linli Jiang Jiangyu Liang Lei Liu Department of oral and maxillofacial Surgery State Key Laboratory of Oral Disease&National Center for Stomatology&National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan 610041China Department of Biomaterials sciences and Prosthodontics School of DentistryUniversity of MichiganAnn ArborMIUnited States

To the Editor:The jaw cyst is one of the most common benign tumors in the oral and maxillofacial region.[1]To date,several studies have reported on jaw cysts in general populations from Italy,Brazil,Greece,and the United States in accordance with the 4th World Health Organization(WHO)classication of head and neck tumors.[2]However,there are no clinicopathological studies of odontogenic and non-odontogenic cysts in a large Chinese population in relation to the latest WHO classi***,few epidemiological studies have analyzed treatment plans and the possible postoperative complications of jaw ***,this study aimed to perform a detailed and extended epidemiological analysis of jaw cysts in a large population in West China.

关键词： clinic treatment pathologic

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