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| 1 | The influence of YS-I on the Dll4-Notchl signaling pathway显示文摘在这研究,我们在表明小径的 Dll4-Notch1 调查了角色和 p43 和 YS-1 (recombinant 人 p43 蛋白质) 的分子的机制。p43 蛋白质指向的活跃、小介入的 RNA 和 recombinant plasmid 被用来感染人的脐的静脉 endothelial 房间(HUVEC ) 。三维的发芽模型, endothelial 房间移植试金,并且发芽并且试管形成试金被用来在 angiogenesis 推出 p43 和 YS-1 的函数。半量的反向的抄写聚合酶链反应和西方的污点分析被执行在在 HUVEC 发信号的 Dll4-Notch1 检测 p43 的效率。它被发现 p43 的那 silencing 和 overexpression 能 upregulate Dll4 槽口并且刺激 angiogenesis。p43 在 angiogenesis 起一个复杂作用。当集中在 100 nM 下面时,它支持 angiogenesis;相反,当集中是超过 100 nM 时,它禁止 angiogenesis。在这研究,我们发现 p43 的表示水平在 60 nM 下面。然而, recombinant 人 p43 蛋白质, YS-1,发芽的禁止的 endothelial 房间,和 YS-1 的 500 g/ml 稀释了 Dll4-Notch1 发信号的激活。这些结果建议 YS-1 能直接通过 Dll4-Notch1 信号 transduction 小径禁止 angiogenesis,当 p43 在这条发信号的小径起一个 modulating 作用时。 | Li Sun Qingqing Yang Ping Wang Datao Liu Wenlu Liang Sensen Lin Shengtao Yuan | 2014 | Acta Biochimica et Biophysica Sinica2014，46，1： | 1 |
| 2 | Exosomes from antler stem cells alleviate mesenchymal stem cell senescence and osteoarthritis显示文摘Dear Editor,Stem cell therapy holds enormous and revolutionary promise to treat various age-related diseases,such as diabetes,heart failure,and Parkinson’s disease.However,low retention and survival rate of delivered stem cells,partially due to immunological rejection,constitute major hurdles for the clinical implementation of stem cell therapy(Lei et al.,2021a).Since mounting evidence showed that several types of stem cells mainly exert their therapeutic effects through the secretion of paracrine effects,exosomes,which are released by stem cells and execute most paracrine functions,have begun to draw attention in the field(Tran and Damaser,2015).Exosomes are membrane-enclosed vesicles with an average diameter of∼100 nanometers secreted by the cells,containing cytokines. | Jinghui Lei Xiaoyu Jiang Wei Li Jie Ren Datao Wang Zhejun Ji Zeming Wu Fang Cheng Yusheng Cai Zheng-Rong Yu Juan Carlos Izpisua Belmonte Chunyi Li Guang-Hui Liu Weiqi Zhang Jing Qu Si Wang | 2022 | Protein & Cell2022，13，3： | 1 |
| 3 | Phenomena of Periodic Precipitaion in Rare Earth-Cholate Diffusion Systems显示文摘Theuseofrareearthcompoundsonfertilizerhasbeenincreasedrapidlyduringrecentdecades,sotheposibilityofrareearthionsgettingintot... | Xie Datao, Wang Libo, Wu Jinguang, Xu Guangxian (State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871, China) | 1999 | Journal of Rare Earths1999，17，2： | 1 |
| 4 | Lanthanide-Doped Inorganic Nanoprobes for Luminescent Assays of Biomarkers显示文摘Tremendous progress in nanomaterial and nanotechnology has been made in recent years,which greatly contributes to the development of inorganic nanoparticles(NPs)as luminescent probes in diverse biomedical applications.In particular,these luminescent nanoprobes are widely employed for sensitive assays of biomarkers like disease markers.Generally,the luminescent bioassay technologies mainly rely on conventional molecular probes such as lanthanide(Ln3+)chelates or organic dyes,which suffer from inferior photochemical stability,low photobleaching,potential long-term toxicity,or high background noise.In contrast,Ln3+-doped NPs possess distinct physicochemical properties including better photostability,lower toxicity,and superior optical properties like long photoluminescent(PL)lifetime,narrow emission band,and tunable spectral range from the ultraviolet to the second near-infrared(NIR-II),which make them extremely ideal as luminescent nanoprobes.As such,enormous research enthusiasm has been invested in this fascinating field of Ln3+-doped luminescent nanoprobes in recent years.Accordingly,background-free luminescent bioassays with high signal-to-noise have been achieved by employing Ln3+-doped NPs on the basis of their downshifting luminescence(DSL)with a long PL lifetime,NIR-II luminescence with long-wavelength emissions,or upconverting luminescence(UCL)upon NIR excitation.However,there are still key challenges for Ln3+-doped nanoprobes owing to their low brightness and quantum yield,which restrict their biomedical applications.During the past decade,we have explored efficient approaches for the synthesis and design of highly efficient Ln3+-doped nanoprobes toward ultrasensitive luminescent bioassay of disease markers.In this Account,we summarize our most recent endeavors toward the development of inorganic Ln3+-doped NPs as sensitive nanoprobes for luminescent bioassays.First,we overview the approaches of controlled synthesis and optical manipulation to obtain highly efficient Ln3+-doped NPs with desirable optical properties.Second,we survey the design of Ln3+-doped nanoprobes with outstanding water dispersibility and excellent biocompatibility through surface functional bioconjugation of NPs.By employing these nanoprobes,we propose and exemplify several background-free luminescent bioassay strategies in an effort to suppress the interference of background noise from scattered lights and autofluorescence from biological samples.Third,we highlight the ultrasensitive bioassay of disease markers such as the time-resolved luminescent bioassay,NIR-II luminescent bioassay,and UCL bioassay.Finally,the major challenges,promising emerging trends,and future perspectives on this attractive field are discussed.Through this Account,we aim to offer a series of effective approaches to luminescent bioassay with high sensitivity and excellent specificity based on Ln3+-doped nanoprobes,which may broaden the roadway for clinical bioassays and accelerate the exploration of novel nanoprobes in versatile biomedical applications. | Luping Wang Siyuan Han Chenliang Li Datao Tu Xueyuan Chen | 2023 | Accounts of Materials Research2023，4，2： | 0 |
| 5 | Single-cell transcriptome reveals core cell populations and androgen-RXFP2 axis involved in deer antler full regeneration显示文摘Deer antlers constitute a unique mammalian model for the study of both organ formation in postnatal life and annual full regeneration.Previous studies revealed that these events are achieved through the proliferation and differentiation of antlerogenic periosteum(AP)cells and pedicle periosteum(PP)cells,respectively.As the cells resident in the AP and the PP possess stem cell attributes,both antler generation and regeneration are stem cell-based processes.However,the cell composition of each tissue type and molecular events underlying antler development remain poorly characterized.Here,we took the approach of single-cell RNA sequencing(scRNA-Seq)and identified eight cell types(mainly THY1^(+)cells,progenitor cells,and osteochondroblasts)and three core subclusters of the THY1^(+)cells(SC2,SC3,and SC4).Endothelial and mural cells each are heterogeneous at transcriptional level.It was the proliferation of progenitor,mural,and endothelial cells in the activated antler-lineage-specific tissues that drove the rapid formation of the antler.We detected the differences in the initial differentiation process between antler generation and regeneration using pseudotime trajectory analysis.These may be due to the difference in the degree of stemness of the AP-THY1+and PP-THY1^(+)cells.We further found that androgen-RXFP2 axis may be involved in triggering initial antler full regeneration.Fully deciphering the cell composition for these antler tissue types will open up new avenues for elucidating the mechanism underlying antler full renewal in specific and regenerative medicine in general. | Hengxing Ba Xin Wang Datao Wang Jing Ren Zhen Wang Hai-Xi Sun Pengfei Hu Guokun Zhang Shengnan Wang Chao Ma Yusu Wang Enpeng Wang Liang Chen Tianbin Liu Ying Gu Chunyi Li | 2022 | Cell Regeneration2022，11，1： | 0 |
| 6 | High areal capacity flexible sulfur cathode based on multi-functionalized super-aligned carbon nanotubes显示文摘Rational design of a robust carbon matrix has a profound impact on the performance of flexible/wearable lithium/sulfur batteries.Herein,we demonstrate a freestanding three-dimensional super-aligned carbon nanotube (SACNT) matrix reinforced with a multi-functionalized carbon coating for flexible,high-areal sulfur loading cathode.By employing the sulfur/nitrogen co-doped carbon (SNC)'glue',the joints in the SACNT scaffold are tightly welded together so that the overall mechanical strength of the electrode is significantly enhanced to withstand the repeated bending as well as the volume change during operation.The SNC also shows intriguing catalytic effect that lowers the energy barrier of Li ion transport,propelling a superior redox conversion efficiency.The resulting binder-free and current collector-free sulfur cathode exhibits a high reversible capacity of 1,079 mAh·g^-1 at 1 C,a high-rate capacity of ~ 800 mAh·g^-1 at 5 C,and an average capacity decay rate of 0.037% per cycle at 2 C for 1,500 cycles.Impressively,a large-areal flexible Li/S pouch cell based on such mechanically robust cathode exhibits excellent capacity retention under arbitrary bending conditions.With a high areal sulfur loading of 7 mg·cm^-2,the large-areal flexible cathode delivers an outstanding areal capacity of 6.3 mAh·cm^-2 at 0.5 C (5.86 mA·cm^-2),showing its promise for realizing practical high energy density flexible Li/S batteries. | Lujie Jia Jian Wang Zijin Chen Yipeng Su Wei Zhao Datao Wang Yang Wei Kaili Jiang Jiaping Wang Yang Wu Jia Li Wenhui Duan Shoushan Fan Yuegang Zhang | 2019 | Nano Research2019，12，5： | 0 |
| 7 | Bottlebrush inspired injectable hydrogel for rapid prevention of postoperative and recurrent adhesion显示文摘Postsurgical adhesion is a common clinic disease induced by surgical trauma,accompanying serious subsequent complications.Current non-surgical approaches of drugs treatment and biomaterial barrier administration only show limited prevention effects and couldn’t effectively promote peritoneum repair.Herein,inspired by bottlebrush,a novel self-fused,antifouling,and injectable hydrogel is fabricated by the free-radical polymerization in aqueous solution between the methacrylate hyaluronic acid(HA-GMA)and N-(2-hydroxypropyl)methacrylamide(HPMA)monomer without any chemical crosslinkers,termed as H-HPMA hydrogel.The H-HPMA hydrogel can be tuned to perform excellent self-fused properties and suitable abdominal metabolism time.Intriguingly,the introduction of the ultra-hydrophilic HPMA chains to the H-HPMA hydrogel affords an unprecedented antifouling capability.The HPMA chains establish a dense hydrated layer that rapidly prevents the postsurgical adhesions and recurrent adhesions after adhesiolysis in vivo.The H-HPMA hydrogel can repair the peritoneal wound of the rat model within 5 days.Furthermore,an underlying mechanism study reveals that the H-HPMA hydrogel significantly regulated the mesothelial-to-mesenchymal transition(MMT)process dominated by the TGF-β-Smad2/3 signal pathway.Thus,we developed a simple,effective,and available approach to rapidly promote peritoneum regeneration and prevent peritoneal adhesion and adhesion recurrence after adhesiolysis,offering novel design ideas for developing biomaterials to prevent peritoneal adhesion. | Jushan Gao Jinpeng Wen Datao Hu Kailai Liu Yuchen Zhang Xinxin Zhao Ke Wang | 2022 | Bioactive Materials2022，7，10： | 0 |
| 8 | Dual-labeled visual tracer system for topical drug delivery by nanoparticle-triggered P-glycoprotein silencing显示文摘Using nanoparticle-based drug delivery systems as enhancers is a robust strategy for transdermal delivery;however, the mechanisms by which these systems promote transdermal penetration are still unclear.Here, we fabricated a dual-labeled nano drug delivery system that allows discrete visualization of both the drug and the nanoparticle carrier. To comprehensively examine its potential mechanism, we investigated its effects on human epidermal keratinocyte Ha Ca T cells, including changes in cell membrane potential, intracellular Ca;concentration, and Ca;-ATPase activity. P-glycoprotein(P-gp) expression in nanoparticle-treated human dermal microvascular endothelial cells was detected by western blotting and immunofluorescence. Furthermore, the transdermal absorption and biodistribution of the dual-labeled nanoparticles were deeply investigated by skin permeability study in vitro and in vivo using fluorescence microscopy and in vivo imaging, respectively. In addition to reducing membrane potential, increasing the intracellular Ca;concentration, and decreasing Ca;-ATPase activity, our results indicate that the duallabeled nanoparticles can downregulate P-gp to promote transdermal absorption. Fluorescence and in vivo imaging visually demonstrated that the nanoparticle delivery system penetrated into the dermis through the stratum corneum. All these results indicate that this dual-labeled nano delivery system provides a new method for future in-depth visual explorations of transdermal drug delivery mechanisms. | Jushan Gao Shanbo Ma Xinxin Zhao Jinpeng Wen Datao Hu Xiaoye Zhao Xiaopeng Shi Ke Wang | 2021 | Chinese Chemical Letters2021，32，12： | 0 |
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