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Bioinspired polysaccharide-based nanocomposite membranes with robust wet mechanical properties for guided bone regeneration

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National Science Review 2024年第3期11卷 215-226页

作者： Jian-Hong Xiao Zhen-Bang Zhang JiaHao Li Si-Ming Chen Huai-Ling Gao YinXiu Liao Lu Chen ZiShuo Wang YiFan Lu YuanZhen Hou HengAn Wu DuoHong Zou Shu-Hong Yu department of Chemistry New Cornerstone Science Laboratory Institute of Biomimetic Materials&Chemistry Anhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&Chemistry Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China department of Dental Implant Center Stomatologic Hospital and College Key Laboratory of Oral Diseases Research of Anhui Province Anhui Medical University CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern Mechanics CAS Center for Excellence in Complex System Mechanics University of Science and Technology of China department of oral Surgery College of Stomatology National Clinical Research Center for Oral DiseasesShanghai Key Laboratory of Stomatology Shanghai Research Institute of Stomatology Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Institute of Innovative Materials(I2M) Department of Chemistry Department of Materials Science and Engineering Southern University of Science and Technology

Polysaccharide-based membranes with excellent mechanical properties are highly desired. However, severe mechanical deterioration under wet conditions limits their biomedical applications. Here, inspired by the structural heterogeneity of strong yet hydrated biological materials, we propose a strategy based on heterogeneous crosslink-and-hydration（HCH） of a molecule/nano dual-scale network to fabricate polysaccharide-based nanocomposites with robust wet mechanical properties. The heterogeneity lies in that the crosslink-and-hydration occurs in the molecule-network while the stress-bearing nanofiber-network remains unaffected. As one demonstration, a membrane assembled by bacterial cellulose nanofiber-network and Ca2+-crosslinked and hydrated sodium alginate molecule-network is designed. Studies show that the crosslinked-and-hydrated molecule-network restricts water invasion and boosts stress transfer of the nanofiber-network by serving as interfibrous bridge. Overall, the molecule-network makes the membrane hydrated and flexible; the nanofiber-network as stress-bearing component provides strength and *** HCH dual-scale network featuring a cooperative effect stimulates the design of advanced biomaterials applied under wet conditions such as guided bone regeneration membranes.

关键词： bioinspiration heterogeneous crosslink-and-hydration dual-scale network nanocomposite membrane wet mechanical properties guided bone regeneration

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The activation of adenosine monophosphate–activated protein kinase inhibits the migration of tongue squamous cell carcinoma cells by targeting Claudin-1 via epithelial–mesenchymal transition

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Animal Models and Experimental Medicine 2024年第5期 606-616页

作者： Xin-Yue Zhou Qiu-Ming Liu Zhuang Li Xia-Yang Liu Qi-Wei Zhao Yu Wang Feng-Hua Wu Gang Zhao Rui Sun Xiao-Hong Guo department of Basic Medicine Hubei University of Chinese Medicine Hubei Shizhen Laboratory Sino-German Biomedical Center Hubei University of Technology Center of Applied Biotechnology Wuhan Institute of Bioengineering department of Stomatology Shanxi Bethune Hospital Shanxi Academy of Medical Sciences Tongji Shanxi Hospital Third Hospital of Shanxi Medical University department of oral and maxillofacial Surgery Shanxi Provincial People's Hospital

Background: The role of Claudin-1 in tongue squamous cell carcinoma(TSCC) metastasis needs further clarification, particularly its impact on cell migration. Herein, our study aims to investigate the role of Claudin-1 in TSCC cell migration and its underlying ***: 36 TSCC tissue samples underwent immunohistochemical staining for Claudin-1. Western blotting and immunofluorescence analyses were conducted to evaluate Claudin-1 expression and distribution in TSCC cells. Claudin-1 knockdown cell lines were established using short hairpin RNA transfection. Migration effects were assessed through wound healing assays. Furthermore, the expression of EMTassociated molecules was measured via western ***: Claudin-1 expression decreased as TSCC malignancy increased. Adenosine monophosphate–activated protein kinase(AMPK) activation led to increased Claudin-1 expression and membrane translocation, inhibiting TSCC cell migration and epithelial–mesenchymal transition(EMT). Conversely, Claudin-1 knockdown reversed these inhibitory effects on migration and EMT caused by AMPK ***: Our results indicated that AMPK activation suppresses TSCC cell migration by targeting Claudin-1 and EMT pathways.

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MicroRNA-146a-loaded magnesium silicate nanospheres promote bone regeneration in an inflammatory microenvironment

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Bone Research 2024年第1期12卷 153-164页

作者： Jiakang Yang Jing Shuai Lixuen Siow Jingyi Lu Miao Sun Wenyue An Mengfei Yu Baixiang Wang Qianming Chen Stomatology Hospital School of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesKey Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityHangzhou 310000China

Reconstruction of irregular oral-maxillofacial bone defects with an inflammatory microenvironment remains a challenge,as chronic local inflammation can largely impair bone ***,we used magnesium silicate nanospheres(MSNs)to load microRNA-146a-5p(miR-146a)to fabricate a nanobiomaterial,MSN+miR-146a,which showed synergistic promoting effects on the osteogenic differentiation of human dental pulp stem cells(hDPSCs).In addition,miR-146a exhibited an anti-inflammatory effect on mouse bone marrow-derived macrophages(BMMs)under lipopolysaccharide(LPS)stimulation by inhibiting the NF-κB pathway via targeting tumor necrosis factor receptor-associated factor 6(TRAF6),and MSNs could simultaneously promote M2 polarization of ***-146a was also found to inhibit osteoclast ***,the dual osteogenic-promoting and immunoregulatory effects of MSN+miR-146a were further validated in a stimulated infected mouse mandibular bone defect model via delivery by a photocuring ***,the MSN+miR-146a complex revealed good potential in treating inflammatory irregular oralmaxillofacial bone defects.

关键词： inflammatory healing stimulation

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Role of adhesion molecules in cancer and targeted therapy

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Science China(Life Sciences) 2024年第5期67卷 940-957页

作者： Chunmei Fan Fang Xiong Shanshan Zhang Zhaojian Gong Qianjin Liao Guiyuan Li Can Guo Wei Xiong He Huang Zhaoyang Zeng NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangsha 410000China department of Histology and Embryology Xiangya School of MedicineCentral South UniversityChangsha410013China department of Stomatology Xiangya HospitalCentral South UniversityChangsha 410078China department of oral and maxillofacial Surgery The Second Xiangya HospitalCentral South UniversityChangsha 410011China Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education Cancer Research InstituteCentral South UniversityChangsha 410078China

Adhesion molecules mediate cell-to-cell and cell-to-extracellular matrix interactions and transmit mechanical and chemical signals among *** mechanisms deregulate adhesion molecules in cancer,enabling tumor cells to proliferate without restraint,invade through tissue boundaries,escape from immune surveillance,and survive in the tumor *** studies have revealed that adhesion molecules also drive angiogenesis,reshape metabolism,and are involved in stem cell *** this review,we summarize the functions and mechanisms of adhesion molecules in cancer and the tumor microenvironment,as well as the therapeutic strategies targeting adhesion *** studies have implications for furthering our understanding of adhesion molecules in cancer and providing a paradigm for exploring novel therapeutic approaches.

关键词： adhesion molecules tumor microenvironment invasion and metastasis reshaping metabolism angiogenesis immune evasion tumor stemness therapeutic strategy

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ExosomalmicroRNA let-7c-5p enhances cell malignant characteristics by inhibiting TAGLN in oral cancer

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Oncology Research 2024年第10期32卷 1623-1635页

作者： YI LI TIANYI WANG HAORAN DING SHIYONG ZHUANG XIAOBO DAI BING YAN State Key Laboratory of oral Diseases&National Center for Stomatology&National Clinical Research Center for oral Diseases&department of Head and Neck Oncology Surgery West China Hospital of StomatologySichuan UniversityChengdu610041China Frontier Innovation Center for Dental Medicine Plus Chengdu610041China

Background:oral cancer,a malignancy that is prevalent worldwide,is often diagnosed at an advanced ***(miRNAs)in circulating exosomes have emerged as promising cancer *** role of miRNA let-7c-5p in oral cancer remains underexplored,and its potential involvement in tumorigenesis warrants comprehensive ***:Serum samples from 30 patients with oral cancer and 20 healthy controls were used to isolate exosomes and quantify their RNA *** of the exosomes was confirmed through transmission electron *** PCR was used to assess the miRNA *** effects of let-7c-5p and TAGLN overexpression on oral cancer cell viability,migration,and invasion were analyzed via CCK-8 and Transwell ***,we conducted mRNA sequencing of exosomal RNA from exosomes overexpressing let-7c-5p to delineate the gene expression profile and identify potential let-7c-5p target ***:let-7c-5p was upregulated in serumderived exosomes of patients with oral *** of let-7c-5p in the TCA8113 and CAL-27 cell lines enhanced their proliferative,migratory,and invasive capacities,and overexpression of let-7c-5p cell-derived exosomes promoted oral cancer cell *** mRNA sequencing revealed 2,551 differentially expressed genes between control cell-derived exosomes and overexpressed let-7c-5p cell-derived *** further identified TAGLN as a direct target of let-7c-5p,which has been implicated in modulating the oncogenic potential of oral cancer *** of TAGLN reverses the promoting role of let-7c-5p on oral cancer ***:Our findings highlight the role of exosomal let-7c-5p in enhancing oral cancer cell aggressiveness by downregulating TAGLN expression,highlighting its potential as a diagnostic and therapeutic strategy.

关键词： oral cancer Exosomal microRNA let-7c-5p Tumorigenesis biomarkers Gene expression profiling TAGLN

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Phenformin activates ER stress to promote autophagic cell death via NIBAN1 and DDIT4 in oral squamous cell carcinoma independent of AMPK

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International Journal of oral Science 2024年第3期16卷 471-485页

作者： Dexuan Zhuang Shuangshuang Wang Huiting Deng Yuxin Shi Chang Liu Xue Leng Qun Zhang Fuxiang Bai Bin Zheng Jing Guo Xunwei Wu School and Hospital of Stomatology Cheeloo College of MedicineShandong University&Shandong Key Laboratory of Oral Tissue Regeneration&Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration&Shandong Provincial Clinical Research Center for Oral DiseasesJinanChina Engineering Laboratory for Biomaterials and Tissue Regeneration Ningbo Stomatology HospitalSavaid Stomatology SchoolHangzhou Medical CollegeNingboChina Cedars-Sinai Cancer Institute Department of Biomedical SciencesCedars-Sinai Medical CenterLos AngelesCAUSA

The efficient clinical treatment of oral squamous cell carcinoma(OSCC)is still a challenge that demands the development of effective new *** has been shown to produce more potent anti-tumor activities than metformin on different tumors,however,not much is known about the influence of phenformin on OSCC *** found that phenformin suppresses OSCC cell proliferation,and promotes OSCC cell autophagy and apoptosis to significantly inhibit OSCC cell growth both in vivo and in ***-seq analysis revealed that autophagy pathways were the main targets of phenformin and identified two new targets DDIT4(DNA damage inducible transcript 4)and NIBAN1(niban apoptosis regulator 1).We found that phenformin significantly induces the expression of both DDIT4 and NIBAN1 to promote OSCC ***,the enhanced expression of DDIT4 and NIBAN1 elicited by phenformin was not blocked by the knockdown of AMPK but was suppressed by the knockdown of transcription factor ATF4(activation transcription factor 4),which was induced by phenformin treatment in OSCC ***,these results revealed that phenformin triggers endoplasmic reticulum(ER)stress to activate PERK(protein kinase R-like ER kinase),which phosphorylates the transitional initial factor eIF2,and the increased phosphorylation of eIF2 leads to the increased translation of *** summary,we discovered that phenformin induces its new targets DDIT4 and especially NIBAN1 to promote autophagic and apoptotic cell death to suppress OSCC cell *** study supports the potential clinical utility of phenformin for OSCC treatment in the future.

关键词： drugs treatment AMPK DDI

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Clinical management of a rare melanoma case arising from congenital melanocytic nevus

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Genes & Diseases 2024年第3期11卷 79-82页

作者： Ruixin Jiang Yan Wang Xuhui Ma Xinyang Xuanyuan Yanjie Zhang Bin Jiang Weizhen Zhang Hanlin Zeng department of Oncology Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 201900China department of Oncology The Third People's Hospital of ZhengzhouZhengzhouHenan 450000China department of oral&maxillofacial-Head and Neck Oncology Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 200125China Shanghai Institute of Precision Medicine Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai200125China department of Dermatology Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 200000China

Congenital melanocytic nevi(CMNs)are skin lesions characterized by benign melanocytic proliferations and present at birth or shortly *** and giant CMNs,with a projected adult size≥20 cm and 40 cm in diameter respectively,are more likely to develop into malignant *** most cases,melanoma arising from congenital melanocytic nevus(CMN)is particularly aggressive.

关键词： melanoma congenital melan

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Metabolic memory:mechanisms and diseases

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Signal Transduction and Targeted Therapy 2024年第3期9卷 1086-1114页

作者： Hao Dong Yuezhang Sun Lulingxiao Nie Aimin Cui Pengfei Zhao Wai Keung Leung Qi Wang State Key Laboratory of oral Diseases&National Center for Stomatology&National Clinical Research Center for oral Diseases West China Hospital of StomatologySichuan UniversityChengduChina department of Prosthodontics West China Hospital of StomatologySichuan UniversityChengduChina Periodontology and Implant Dentistry Division Faculty of DentistryThe University of Hong KongHong KongChina

Metabolic diseases and their complications impose health and economic burdens *** from past experimental studies and clinical trials suggests our body may have the ability to remember the past metabolic environment,such as hyperglycemia or hyperlipidemia,thus leading to chronic inflammatory disorders and other diseases even after the elimination of these metabolic *** long-term effects of that aberrant metabolism on the body have been summarized as metabolic memory and are found to assume a crucial role in states of health and *** molecular mechanisms collectively participate in metabolic memory management,resulting in different cellular alterations as well as tissue and organ dysfunctions,culminating in disease progression and even affecting *** elucidation and expansion of the concept of metabolic memory provides more comprehensive insight into pathogenic mechanisms underlying metabolic diseases and complications and promises to be a new target in disease detection and ***,we retrace the history of relevant research on metabolic memory and summarize its salient *** provide a detailed discussion of the mechanisms by which metabolic memory may be involved in disease development at molecular,cellular,and organ levels,with emphasis on the impact of epigenetic ***,we present some of the pivotal findings arguing in favor of targeting metabolic memory to develop therapeutic strategies for metabolic diseases and provide the latest reflections on the consequences of metabolic memory as well as their implications for human health and diseases.

关键词： diseases metabolism alterations

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Expert consensus on difficulty assessment of endodontic therapy

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International Journal of oral Science 2024年第1期16卷 15-25页

作者： Dingming Huang Xiaoyan Wang Jingping Liang Junqi Ling Zhuan Bian Qing Yu Benxiang Hou Xinmei Chen Jiyao Li Ling Ye Lei Cheng Xin Xu Tao Hu Hongkun Wu Bin Guo Qin Su Zhi Chen Lihong Qiu Wenxia Chen Xi Wei Zhengwei Huang Jinhua Yu Zhengmei Lin Qi Zhang Deqin Yang Jin Zhao Shuang Pan Jian Yang Jiayuan Wu Yihuai Pan Xiaoli Xie Shuli Deng Xiaojing Huang Lan Zhang Lin Yue Xuedong Zhou State Key Laboratory of oral Diseases&National Center for Stomatology&National Clinical Research Center for oral Diseases&department of Operative Dentistry and Endodontics West China Hospital of StomatologySichuan UniversityChengduChina 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 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 StomatologyGuanghuaSchool of StomatologySun Yat-Sen University&Guangdong Provincial Key Laboratory of StomatologyGuangzhouChina The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhanChina department of Operative Dentistry&Endodontics School of StomatologyThe Fourth Military Medical UniversityXi’anChina department of Endodontics Beijing Stomatological HospitalSchool of StomatologyCapital Medical UniversityBeijingChina State Key Laboratory of oral Diseases&National Center for Stomatology&National Clinical Research Center for oral Diseases&department of Preventive 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 Geriatric dentistry West China Hospital of Stomatology

Endodontic diseases are a kind of chronic infectious oral disease. Common endodontic treatment concepts are based on the removal of inflamed or necrotic pulp tissue and the replacement by gutta-percha. However, it is very essential for endodontic treatment to debride the root canal system and prevent the root canal system from bacterial reinfection after root canal therapy(RCT). Recent research, encompassing bacterial etiology and advanced imaging techniques, contributes to our understanding of the root canal system’s anatomy intricacies and the technique sensitivity of RCT. Success in RCT hinges on factors like patients, infection severity, root canal anatomy, and treatment techniques. Therefore, improving disease management is a key issue to combat endodontic diseases and cure periapical lesions. The clinical difficulty assessment system of RCT is established based on patient conditions, tooth conditions, root canal configuration, and root canal needing retreatment, and emphasizes pre-treatment risk assessment for optimal outcomes. The findings suggest that the presence of risk factors may correlate with the challenge of achieving the high standard required for RCT. These insights contribute not only to improve education but also aid practitioners in treatment planning and referral decision-making within the field of endodontics.

关键词： anatomy difficulty treatment

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Tetrahedral framework nucleic acids promote the proliferation and differentiation potential of diabetic bone marrow mesenchymal stem cell

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Chinese Chemical Letters 2024年第9期35卷 284-288页

作者： Yanjing Li Jiayin Li Yuqi Chang Yunfeng Lin Lei Sui department of Prosthodontics Tianjin Medical University School and Hospital of StomatologyTianjin 300070China State Key Laboratory of oral Diseases West China Hospital of StomatologySichuan UniversityChengdu 610041China

Diabetes mellitus considerably affects bone marrow mesenchymal stem cells(BMSCs),for example,by inhibiting their proliferation and differentiation potential,which enhances the difficulty in endogenous bone ***,effective strategies for enhancing the functions of BMSCs in diabetes have farreaching consequences for bone healing and regeneration in diabetes *** framework nucleic acids(tFNAs)are nucleic acid nanomaterials that can autonomously enter cells and regulate their *** this study,we evaluated the effects of tFNAs on BMSCs from diabetic *** found that tFNAs could promote the proliferation,migration,and osteogenic differentiation of BMSCs from rats with type 2 diabetes mellitus,and inhibited cell senescence and ***,tFNAs effectively scavenged the accumulated reactive oxygen species and activated the suppressed protein kinase B(Akt)signaling ***,we show that tFNAs can recover the proliferation and osteogenic potential of diabetic BMSCs by alleviating oxidative stress and activating Akt *** study provides a strategy for endogenous bone regeneration in diabetes and also paves the way for exploiting DNA-based nanomaterials in regenerative medicine.

关键词： Bone marrow mesenchymal stem cell Diabetes mellitus DNA-based nanomaterial Tetrahedral framework nucleic acids Endogenous bone regeneration

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