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CA IX-targeted Ag_(2)S quantum dots bioprobe for NIR-II imaging-guided hypoxia tumor chemo-photothermal therapy
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作者 Xinyue Cui Zhuang Hu +3 位作者 Ruihan Li Peng Jiang Yongchang Wei Zilin Chen 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2024年第6期878-888,共11页
Hypoxia is the common characteristic of almost all solid tumors,which prevents therapeutic drugs from reaching the tumors.Therefore,the development of new targeted agents for the accurate diagnosis of hypoxia tumors i... Hypoxia is the common characteristic of almost all solid tumors,which prevents therapeutic drugs from reaching the tumors.Therefore,the development of new targeted agents for the accurate diagnosis of hypoxia tumors is widely concerned.As carbonic anhydrase IX(CA IX)is abundantly distributed on the hypoxia tumor cells,it is considered as a potential tumor biomarker.4-(2-Aminoethyl)benzenesulfonamide(ABS)as a CA IX inhibitor has inherent inhibitory activity and good targeting effect.In this study,Ag_(2)S quantum dots(QDs)were used as the carrier to prepare a novel diagnostic and therapeutic bioprobe(Ag_(2)S@polyethylene glycol(PEG)-ABS)through ligand exchange and amide condensation reaction.Ag_(2)S@PEG-ABS can selectively target tumors by surface-modified ABS and achieve accurate tumor imaging by the near infrared-II(NIR-II)fluorescence characteristics of Ag_(2)S QDs.PEG modification of Ag_(2)S QDs greatly improves its water solubility and stability,and therefore achieves high photothermal stability and high photothermal conversion efficiency(PCE)of 45.17%.Under laser irradiation,Ag_(2)S@PEG-ABS has powerful photothermal and inherent antitumor combinations on colon cancer cells(CT-26)in vitro.It also has been proved that Ag_(2)S@PEG-ABS can realize the effective treatment of hypoxia tumors in vivo and show good biocompatibility.Therefore,it is a new efficient integrated platform for the diagnosis and treatment of hypoxia tumors. 展开更多
关键词 CA IX-targeted Hypoxia tumor combination therapy NIR-II imaging Photothermal effect
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Hyaluronic Acid-RGD Peptide Conjugated Mesoporous Silica-coated Gold Nanorods for Cancer Dual-targeted Chemo-photothermal Therapy
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作者 周汇敏 高玉香 +7 位作者 徐海星 LI Xin Lü Yahui MA Tian CAI Xinjie LI Rui WANG Xiaobing 许沛虎 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2018年第2期512-523,共12页
A multifunctional drug delivery system(GNRs@mSiO_2-HA-RGD) was developed by conjugating targeting ligand hyaluronic acid(HA) and RGD with mesoporous silica-coated gold nanorods(GNRs@mSiO_2) for dual-targeted che... A multifunctional drug delivery system(GNRs@mSiO_2-HA-RGD) was developed by conjugating targeting ligand hyaluronic acid(HA) and RGD with mesoporous silica-coated gold nanorods(GNRs@mSiO_2) for dual-targeted chemo-photothermal therapy. The physiochemical properties of the prepared nanoparticles were characterized by FTIR, UV-vis spectra, and ~1H NMR. Doxorubicin hydrochloride(DOX), an anticancer drug, was used as the model drug to investigate the drug loading, in vitro drug release profiles and cytotoxicity. The experimental results show that DOX-GNRs@mSiO_2-HA-RGD is synthesized with a mean diameter of 116 nm and a sufficient load capacity of about 19.8%. It also has p H-enzyme sensitive and NIRtriggered drug release manner. Cellular uptake indicates that DOX-GNRs@mSiO_2-HA-RGD exhibits a higher cellular uptake via CD44 receptor and integrin receptor mediated endocytosis compared with the GNRs@mSiO_2 modified with one receptor or no receptor. In comparison with chemotherapy or photothermal therapy alone, DOX-GNRs@mSiO_2-HA-RGD displayes the synergistic effects and achieves a higher therapeutic efficacy. It can be expected that DOX-GNRs@mSiO_2-HA-RGD is a potential dual-targeted chemo-photothermal therapeutic platform for effective cancer treatment. 展开更多
关键词 hyaluronic acid RGD mesoporous silica-coated gold nanorods chemotherapy photothermal therapy
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Silicon dioxide-protection boosting the peroxidase-like activity of Fe single-atom catalyst for combining chemo-photothermal therapy 被引量:1
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作者 Yu Fan Yu Yi +1 位作者 Hongpan Rong Jiatao Zhang 《Nano Research》 SCIE EI CSCD 2024年第6期4924-4933,共10页
Carbon-based single-atom catalysts(SACs)have been widely studied in the field of biomedicine due to their excellent catalytic performance.However,carbon-based SACs usually aggregate during pyrolysis,which leads to the... Carbon-based single-atom catalysts(SACs)have been widely studied in the field of biomedicine due to their excellent catalytic performance.However,carbon-based SACs usually aggregate during pyrolysis,which leads to the reduction of catalytic activity.Here,we describe a method to improve the monodispersion of SACs using silicon dioxide as a protective layer.The decoration of silicon dioxide serves as a buffer layer for individual nanoparticles,which is not destroyed during the pyrolysis process,ensuring the single-particle dispersion of the nanoparticles after etching.This approach increased the hydroxyl groups on the surface of Fe-SAC(Fe-SAC-SE)and improved its water solubility,resulting in a four times enhancement of the peroxidase(POD)-like activity of Fe-SAC-SE(58.4 U/mg)than that of non-protected SACs(13.9 U/mg).The SiO_(2)-protection approach could also improve the catalytic activities of SACs with other metals such as Mn,Co,Ni,and Cu,indicating its generality for SACs preparation.Taking advantage of the high POD-like activity,photothermal properties,and large specific surface area of Fe-SAC-SE,we constructed a synergistic therapeutic system(Fe-SAC-SE@DOX@PEG)for combining the photothermal therapy,catalytic therapy,and chemotherapy.It was verified that the photothermal properties of Fe-SAC-SE@DOX@PEG could effectively improve its POD-like activity,exhibiting excellent tumor-killing performance at the cellular level.This work may provide a general approach to improve the performances of SACs for disease therapy and diagnosis. 展开更多
关键词 single-atom catalysts peroxidase-like activity SiO2-protection photothermal therapy catalytic therapy chemotherapy
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Self-assembly nanomicelle-microneedle patches with enhanced tumor penetration for superior chemo-photothermal therapy 被引量:3
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作者 Ying Sun Minglong Chen +4 位作者 Dan Yang Wanbing Qin Guilan Quan Chuanbin Wu Xin Pan 《Nano Research》 SCIE EI CSCD 2022年第3期2335-2346,共12页
Nanomedicine with high specificity has been a promising tool for cancer diagnosis and therapy.However,the successful application of nanoparticle-based superficial cancer therapy is severely hindered by restricted deep... Nanomedicine with high specificity has been a promising tool for cancer diagnosis and therapy.However,the successful application of nanoparticle-based superficial cancer therapy is severely hindered by restricted deep tumor tissue accumulation and penetration.Herein,a self-assembly nanomicelle dissolving microneedle(DMN)patch according to the“nano in micro”strategy was conducted to co-deliver a first-line chemotherapeutic agent paclitaxel(PTX),and a photosensitizer IR780(PTX/IR780-NMs@DMNs)for chemo-photothermal synergetic melanoma therapy.Upon direct insertion into the tumor site,DMNs created a regular and multipoint three-dimensional drug depot to maximize the tumor accumulation.Accompanied by the DMN dissolution,the composition of the needle matrixes self-assembled into nanomicelles,which could efficiently penetrate deep tumor tissue.Upon laser irradiation,the nanomicelles could not only ablate tumor cells directly by photothermal conversion but also trigger PTX release to induce tumor cell apoptosis.In vivo results showed that compared with intravenous injection,IR780 delivered by PTX/IR780-NMs@DMNs was almost completely accumulated at the tumor site.The antitumor results revealed that the PTX/IR780-NMs@DMNs could effectively eliminate tumors with an 88%curable rate without any damage to normal tissues.This work provides a versatile and generalizable framework for designing self-assembly DMN-mediated combination therapy to fight against superficial cancer. 展开更多
关键词 dissolving microneedle tumor penetration nanomicelle superficial tumor chemo-photothermal therapy
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NIR-triggered drug delivery system based on phospholipid coated ordered mesoporous carbon for synergistic chemo-photothermal therapy of cancer cells 被引量:2
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作者 Anman Zhang Luo Hai +4 位作者 Tianzheng Wang Hong Cheng Man Li Xiaoxiao He Kemin Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2020年第12期3158-3162,共5页
Chemo-photothermal treatment is one of the most efficient strategies for cancer therapy.However,traditional drug carriers without near-infrared absorption capacity need to be loaded with materials behaving phototherma... Chemo-photothermal treatment is one of the most efficient strategies for cancer therapy.However,traditional drug carriers without near-infrared absorption capacity need to be loaded with materials behaving photothermal properties,as it results in complicated synthesis process,inefficient photothermal effects and hindered NIR-mediated drug release.Herein we report a facile synthesis of a polyethylene glycol(PEG)linked liposome(PEG-liposomes)coated doxorubicin(DOX)-loaded ordered mesoporous carbon(OMC)nanocomponents(PEG-LIP@OMC/DOX)by simply sonicating DOX and OMC in PEG-liposomes suspensions.The as-obtained PEG-LIP@OMC/DOX exhibits a nanoscale size(600±15 nm),a negative surface potential(-36.70 mV),high drug loading(131.590 mg/g OMC),and excellent photothermal properties.The PEG-LIP@OMC/DOX can deliver loaded DOX to human MCF-7 breast cancer cells(MCF-7)and the cell toxicity viability shows that DOX unloaded PEG-LIP@OMC has no cytotoxicity,confirming the PEG-LIP@OMC itself has excellent biocompatibility.The NIR-triggered release studies demonstrate that this NIR-responsive drug delivery system enables on-demand drug release.Furthermore,cell viability results using human MCF-7 cells demonstrated that the combination of NIR-based hyperthermal therapy and triggered chemothe rapy can provide higher therapeutic efficacy than re spective monothe rapies.With these excellent features,we believe that this phospholipid coating based multifunctional delivery system strategy should promote the application of OMC in nanomedical applications. 展开更多
关键词 Ordered mesoporous carbon Polyethylene glycol linked liposomes Stimuli-responsive drug delivery system NIR-triggered drug delivery chemo-photothermal therapy
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Gold nanorods/tetrahedral DNA composites for chemo-photothermal therapy 被引量:1
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作者 Ziyun He Qiusheng Wang +4 位作者 Nan Zhang Jianqin Yan Li Li Jun Cao Bin He 《Regenerative Biomaterials》 SCIE EI 2022年第1期404-413,共10页
Combination therapy is extensively developed for cancer treatment in recent years due to its high efficiency.Herein,we constructed a nanocomposite based on gold nanorods(GNRs)and drug-loaded tetrahedral DNA nanostruct... Combination therapy is extensively developed for cancer treatment in recent years due to its high efficiency.Herein,we constructed a nanocomposite based on gold nanorods(GNRs)and drug-loaded tetrahedral DNA nanostructures(TDN)for chemophotothermal combinational therapy.Anti-tumor drug doxorubicin(DOX)was loaded via the insertion within GC base pairs of TDN.The aptamer AS1411 was attached to the apex of TDN(ATDN)to target tumor cells.The DOX-loaded DNA tetrahedron(ATDN-DOX)was compressed by the GNRs coated with PEI(GNRs@ATDN-DOX)to realize the photothermal function and lysosome escape.GNRs under the illumination of 808nm infrared laser showed high photothermal conversion and stability due to the protection of PEI layer.The drug-loading capacity of ATDN-DOX was as high as 314 DOX molecules in per ATDN.The positive charge of PEI in GNRs@ATDN-DOX nanocomposites was utilized to achieve excellent cell penetration and induce proton sponge effect for lysosomal escape.The nanocomposites presented HeLa and 4T1 cells targeting and resulted in efficient anticancer activity. 展开更多
关键词 NANOCOMPOSITE DNA tetrahedron gold nanorod chemo-photothermal therapy
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Controllable synthesis of hollow porous silica nanotubes/CuS nanoplatform for targeted chemo-photothermal therapy 被引量:4
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作者 Shanshan Huang Ping’an Ma +6 位作者 Yi Wei Ziyong Cheng Bei Liu Xiaoran Deng Zhongxi Xie Bengang Xing Jun Lin 《Science China Materials》 SCIE EI CSCD 2020年第5期864-875,共12页
The design and synthesis of multifunctional nanocarriers for efficient synergistic cancer therapy have drawn great research interests in recent years.In this work,a nanoplatform for chemo-photothermal therapy with tar... The design and synthesis of multifunctional nanocarriers for efficient synergistic cancer therapy have drawn great research interests in recent years.In this work,a nanoplatform for chemo-photothermal therapy with targeting ligand was developed.Hollow porous structured silica nanotubes(SNTs)with controllable lengths decorated with CuS nanoparticles(NPs)on the surface as photothermal agents were prepared and further conjugated with lactobionic acid groups as a cancer cell target.SNTs with average lengths of 40,55 and 150 nm were obtained and further functionalized as drug carriers.The smallest bifunctional SNTs with targeting groups show good biocompatibility and highest cellular uptake for HepG2 cells.The release of doxorubicin hydrochloride(DOX)from the SNTs was dependent on the p H of the buffer solution and 808-nm near infrared(NIR)light irradiation.The integration of photothermal therapy(PTT)of CuS NPs and chemotherapy of anticancer drug leads to a better tumor inhibition effect than the individual therapy alone in vitro and in vivo.These results demonstrate potential applications of the nanocomposites as vector for efficient chemo-photothermal therapy. 展开更多
关键词 multifunctional NANOCARRIERS chemo-photothermal therapy silica NANOTUBES CUS nanoparticles cancer cell target
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Doxorubicin-Ioaded Fe3O4@MoS2-PEG-2DG nanocubes as a theranostic platform for magnetic resonance imaging- guided chemo-photothermal therapy of breast cancer 被引量:5
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作者 Wensheng Xie Qin Gao +8 位作者 Dan Wang Zhenhu Guo Fei Gao Xiumei Wang Qiang Cai Si-shen Feng Haiming Fan Xiaodan Sun Lingyun Zhao 《Nano Research》 SCIE EI CAS CSCD 2018年第5期2470-2487,共18页
Molybdenum disulfide (MoS2), a typical transition-metal dichalcogenide, has attracted increasing attention in the field of nanomedicine because of its preeminent properties. In this study, magnetic resonance imaging... Molybdenum disulfide (MoS2), a typical transition-metal dichalcogenide, has attracted increasing attention in the field of nanomedicine because of its preeminent properties. In this study, magnetic resonance imaging (MRI)-guided chemo-photothermal therapy of human breast cancer xenograft in nude mice was demonstrated using a novel core/shell structure of Fe3O4@MoS2 nanocubes (IOMS NCs) via the integration of MoS2 (MS) film onto iron oxide (IO) nanocubes through a facile hydrothermal method. After the necessary PEGylation modification of the NCs for long-circulation purposes, such PEGylated NCs were further capped by 2-deoxy-D-glucose (2-DG), a non-metabolizable glucose analogue to increase the accumulation of the as-prepared NCs at the tumor site, as 2-DG molecules could be particularly attractive to resource-hungry cancer cells. Such 2-DG- modified PEGylated NCs (IOMS-PEG-2DG NCs) acted as drug-carriers for doxorubicin (DOX), which could be easily loaded within the NCs. The obtained IOMS-PEG(DOX)-2DG NCs exhibited a 3?2 relaxivity coefficient of 48.86 (mM)^-1·s^-1 and excellent photothermal performance. 24 h after intravenous injection of IOMS-PEG(DOX)-2DG NCs, the tumor site was clearly detected by enhanced T2-weighted MRI signal. Upon exposure to an NIR 808-nm laser for 5 rain at a low power density of 0.5 W·cm^-2 a marked temperature increase was noticed within the tumor site, and the tumor growth was efficiently inhibited by the chemo-photothermal effect. Therefore, our study highlights an excellent theranostic platform with great potential for targeted MRI-guided precise chemo-photothermal therapy of breast cancer. 展开更多
关键词 iron oxide nanocubes molybdenum disulfide multimodality therapy photothermal therapy nanotheranostics
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Coordination-responsive drug release inside gold nanorod @ metal-organic framework core-shell nanostructures for near-infrared-induced synergistic chemo-photothermal therapy 被引量:11
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作者 Yantao Li Jun Jin +5 位作者 Dawei Wang Jiawei Lv Ke Hou Yaling Liu Chunying Chen Zhiyong Tang 《Nano Research》 SCIE EI CAS CSCD 2018年第6期3294-3305,共12页
Multifunctional core-shell nanostructures formed by integration of distinct components have received wide attention as promising biological platforms in recent years. In this work, crystalline zeolitic imidazolate fra... Multifunctional core-shell nanostructures formed by integration of distinct components have received wide attention as promising biological platforms in recent years. In this work, crystalline zeolitic imidazolate framework-8 (ZIF-8), a typical metal-organic framework (MOF), is coated onto single gold nanorod (AuNR) core for successful realization of synergistic photothermal and chemotherapy triggered by near-infrared (NIR) light. Impressivel)~ high doxorubicin hydrochloride (DOX) loading capacity followed by pH and NIR light dual stimuli-responsive DOX release can be easily implemented through formation and breakage of coordination bonds in the system. Moreover, under NIR laser irradiation at 808 nm, these novel AuNR@MOF core-shell nanostructures exhibit effective synergistic chemo-photothermal therapy both in vitro and in vivo, confirmed by cell treatment and tumor ablation via intravenous injection. 展开更多
关键词 core-shell nanostructures coordination bonds dual stimuli response synergistic cancer therapy
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2D-ultrathin MXene/DOXjade platform for iron chelation chemo-photothermal therapy 被引量:5
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作者 Yunjie Xu Yingwei Wang +15 位作者 Jusung An Adam C.Sedgwick Mingle Li Jianlei Xie Weibin Hu Jianlong Kang Sajal Sen Axel Steinbrueck Bin Zhang Lijun Qiao Swelm Wageh Jonathan F.Arambula Liping Liu Han Zhang Jonathan L.Sessler Jong Seung Kim 《Bioactive Materials》 SCIE 2022年第8期76-85,共10页
An increased demand for iron is a hallmark of cancer cells and is thought necessary to promote high cell proliferation,tumor progression and metastasis.This makes iron metabolism an attractive therapeutic target.Unfor... An increased demand for iron is a hallmark of cancer cells and is thought necessary to promote high cell proliferation,tumor progression and metastasis.This makes iron metabolism an attractive therapeutic target.Unfortunately,current iron-based therapeutic strategies often lack effectiveness and can elicit off-target toxicities.We report here a dual-therapeutic prodrug,DOXjade,that allows for iron chelation chemo-photothermal cancer therapy.This prodrug takes advantage of the clinically approved iron chelator deferasirox(ExJade®)and the topoisomerase 2 inhibitor,doxorubicin(DOX).Loading DOXjade onto ultrathin 2D Ti_(3)C_(2) MXene nanosheets produces a construct,Ti_(3)C_(2)-PVP@DOXjade,that allows the iron chelation and chemotherapeutic functions of DOXjade to be photo-activated at the tumor sites,while potentiating a robust photothermal effect with photothermal conversion efficiencies of up to 40%.Antitumor mechanistic investigations reveal that upon activation,Ti_(3)C_(2)-PVP@DOXjade serves to promote apoptotic cell death and downregulate the iron depletion-induced iron transferrin receptor(TfR).A tumor pH-responsive iron chelation/photothermal/chemotherapy antitumor effect was achieved both in vitro and in vivo.The results of this study highlight what may constitute a promising iron chelation-based phototherapeutic approach to cancer therapy. 展开更多
关键词 2D MXene NANOMEDICINE PRODRUG Iron chelation Photothermal therapy
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Mesoporous PtPd nanoparticles for ligand-mediated and imaging-guided chemo-photothermal therapy of breast cancer 被引量:2
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作者 Yanpeng Jia Yang Song +6 位作者 Ying Qu Jinrong Peng Kun Shi Dan Du He Li Yuehe Lin Zhiyong Qian 《Nano Research》 SCIE EI CAS CSCD 2020年第6期1739-1748,共10页
The synergistic therapy of chemotherapy and photothermal therapy(PTT)has been reported as a promising antitumor strategy.To achieve effective combination therapy,developing more suitable candidate nanomaterials with o... The synergistic therapy of chemotherapy and photothermal therapy(PTT)has been reported as a promising antitumor strategy.To achieve effective combination therapy,developing more suitable candidate nanomaterials with optimal photothermal property and high chemical drug loading capacity is very necessary.Herein,a bimetallic PtPd nanoparticle was synthesized with the merits of excellent photothermal effect and mesoporous structure for doxorubicin(DOX)loading.We further designed PtPd-ethylene glycol(PEG)-folic acid(FA)-doxorubicin(DOX)nanoparticle for chemo-photothermal therapy of MCF-7 tumor with folic acid engineering to achieve active targeting.Moreover,excellent photoacoustic(PA)imaging of PtPd-PEG-FA-DOX nanoparticles facilitated the precise in vivo tracking and further evaluation of nanoparticles’targeting effect.The in vitro and in vivo results both demonstrated PtPd-PEG-FA-DOX nanoparticles serve as a safe and promising system for effective treatment of MCF-7 tumor. 展开更多
关键词 inorganic nanoparticles photoacoustic imaging porous structure photothermal therapy CHEMOtherapy
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A pH-responsive biomimetic drug delivery nanosystem for targeted chemo-photothermal therapy of tumors 被引量:2
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作者 Yanmin Ju Zhiyi Wang +6 位作者 Zeeshan Ali Hongchen Zhang Yazhou Wang Nuo Xu Hui Yin Fugeng Sheng Yanglong Hou 《Nano Research》 SCIE EI CSCD 2022年第5期4274-4284,共11页
Smart drug delivery nanosystem is significant for tumor treatments due to its possibility of temporally,spatially,and dose-controlled release.However,the therapeutic efficacy of drug delivery nanosystem is often compr... Smart drug delivery nanosystem is significant for tumor treatments due to its possibility of temporally,spatially,and dose-controlled release.However,the therapeutic efficacy of drug delivery nanosystem is often compromised in cancer treatment as the enrichment of therapeutic agents in the reticuloendothelial system.Herein,doxorubicin(DOX)loaded biomimetic drug delivery nanosystem with macrophage cell membrane(MCM)camouflaged,MnFe_(2)O_(4)-DOX-MCM nanocube(NC),is developed for cancer treatment with tumor targeting,pH-stimuli drug release,and chemo-photothermal therapeutic effects.The nanosystem shows the capability of immune escape and enhanced cellular uptake of cancer cells due to the MCM decoration.Acid-labile bond between the MnFe2O4 NCs and DOX remains stable at physiological condition and release drugs immediately in response to the endo-/lysosome pH stimuli.Meanwhile,the photothermal effect of the nanosystem destroys tumor tissue,which further promotes chemotherapeutic efficacy.In vivo results demonstrate the tumor homing ability and produce a notable synergistic therapeutic effect of the NCs.Thus,biomimetic pH-responsive drug delivery nanosystem,MnFe_(2)O_(4)-DOX-MCM NCs,is an effective nanoplatform,which might be potential application for cancer synergistic treatment. 展开更多
关键词 drug delivery macrophage cell membrane pH stimuli synergistic therapy
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pH-activatable lactam-stapled peptide-based nanoassemblies for enhanced chemo-photothermal therapy 被引量:1
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作者 Yao Xiao Ling Zhang +5 位作者 Mengzhen Shi Rui Tang Zherui Jiang Yue Song Yuan Tian Shaobing Zhou 《Nano Research》 SCIE EI CSCD 2022年第9期8315-8325,共11页
The practical application of nanomedicines for cancer therapy is generally hampered by their compromised tumor accumulation and transmembrane potency.Cell penetrating peptides(CPPs)have been widely used to enhance the... The practical application of nanomedicines for cancer therapy is generally hampered by their compromised tumor accumulation and transmembrane potency.Cell penetrating peptides(CPPs)have been widely used to enhance the drug delivery efficiency in tumor cells.However,conventional CPPs are vulnerable towards proteases and are generally lack of therapeutic effects.To maximize the efficacy of nanomedicines,new classes of cell penetrating therapeutic modalities are highly desirable.Stapled peptides have drawn wide attention as one of the cell-permeable peptidomimetics for intracellular targets.Herein,we reported a novel approach for enhancing the therapeutic efficacy of chemo-photothermal therapy by taking advantage of the robust cell permeability and therapeutic effects of stapled peptides.The designed pH-activatable lactam-stapled peptide-polymer conjugate formed supramolecular nanoassemblies to encapsulate the chemodrug doxorubicin(DOX).Once reaching the tumor site,the lactam-stapled proapoptotic peptide could be efficiently activated under acidic tumor microenvironment,thereby promoting the drug delivery to the tumor cells and specific targeting mitochondria to interfere with the energy metabolism of tumor cells,which works in synergy with the DOX and local hyperthermia upon near infrared ray(NIR)light irradiation.This work may benefit future design of stapled peptides-based stimuli-responsive nanoplatforms for enhanced cancer therapy. 展开更多
关键词 lactam-stapled peptide PH-RESPONSIVE NANOASSEMBLIES CHEMOtherapy photothermal therapy
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Treatment of spinal cord injury with biomaterials and stem cell therapy in non-human primates and humans
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作者 Ana Milena Silva Olaya Fernanda Martins Almeida +1 位作者 Ana Maria Blanco Martinez Suelen Adriani Marques 《Neural Regeneration Research》 SCIE CAS 2025年第2期343-353,共11页
Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical disability.Thus,in the search for more effective treatments than those already applied fo... Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical disability.Thus,in the search for more effective treatments than those already applied for years,which are not entirely efficient,researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach,seeking to promote neuronal recovery after spinal cord injury.Each of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and,consequently,boosting functional recovery.Although the majority of experimental research has been conducted in rodents,there is increasing recognition of the importance,and need,of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in humans.This article is a literature review from databases(PubMed,Science Direct,Elsevier,Scielo,Redalyc,Cochrane,and NCBI)from 10 years ago to date,using keywords(spinal cord injury,cell therapy,non-human primates,humans,and bioengineering in spinal cord injury).From 110 retrieved articles,after two selection rounds based on inclusion and exclusion criteria,21 articles were analyzed.Thus,this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans,aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans. 展开更多
关键词 BIOENGINEERING BIOMATERIALS cell therapy humans non-human primates spinal cord injury stem cell therapy
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Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients
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作者 Wen Gao Jing-Wen Li +3 位作者 Hui Ye Xue-Zhi Zhang Jian-Xiang Liu Hong Cheng 《World Journal of Gastroenterology》 SCIE CAS 2025年第1期68-78,共11页
BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(H.pylori).While substantial research supports the efficacy and safety of vonoprazan and ... BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(H.pylori).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly patients.AIM To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for H.pylori in elderly patients.METHODS As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for H.pylori eradication in the Department of Gastroenterology at Peking University First Hospital between June 2020 and January 2024.H.pylori status was evaluated by^(13)C-urease breath test 6 weeks after treatment.All adverse events(AEs)during treatment were recorded.RESULTS In total,401 cases were screened.Twenty-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take medication.The total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue treatment.H.pylori was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment group.The overall incidence of AEs was 9.5%for both groups.Specifically,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment group.Five patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE occurred.CONCLUSION The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older. 展开更多
关键词 Helicobacter pylori Vonoprazan AMOXICILLIN Dual therapy ELDERLY
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Optimizing care for gastric cancer with overt bleeding:Is systemic therapy a valid option?
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作者 Emad Qayed 《World Journal of Clinical Oncology》 2025年第1期1-4,共4页
Gastric cancer(GC)and gastroesophageal junction cancer(GEJC)represent a significant burden globally,with complications such as overt bleeding(OB)further exacerbating patient outcomes.A recent study by Yao et al evalua... Gastric cancer(GC)and gastroesophageal junction cancer(GEJC)represent a significant burden globally,with complications such as overt bleeding(OB)further exacerbating patient outcomes.A recent study by Yao et al evaluated the effectiveness and safety of systematic treatment in GC/GEJC patients presenting with OB.Using propensity score matching,the study balanced the comparison groups to investigate overall survival and treatment-related adverse events.The study's findings emphasize that systematic therapy can be safe and effective and contribute to the ongoing debate about the management of advanced GC/GEJC with OB,highlighting the complexities of treatment decisions in these high-risk patients. 展开更多
关键词 Gastric cancer Overt bleeding Systemic therapy Endoscopic therapy HEMOSTASIS
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Current status of drug therapy for chronic hepatitis B
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作者 Chuang Jiang Zhi-Hong Zhang Jia-Xin Li 《World Journal of Gastroenterology》 SCIE CAS 2025年第2期1-12,共12页
In this editorial,we comment on the article by Meng et al.Chronic hepatitis B(CHB)is a significant global health problem,particularly in developing countries.Hepatitis B virus(HBV)infection is one of the most importan... In this editorial,we comment on the article by Meng et al.Chronic hepatitis B(CHB)is a significant global health problem,particularly in developing countries.Hepatitis B virus(HBV)infection is one of the most important risk factors for cirrhosis and hepatocellular carcinoma.Prevention and treatment of HBV are key measures to reduce complications.At present,drug therapy can effectively control virus replication and slow disease progression,but completely eliminating the virus remains a challenge.Anti-HBV treatment is a long-term process,and there are many kinds of antiviral drugs with different mechanisms of action,it is essential to evaluate the safety and efficacy of these drugs to reduce side effects and improve patients’compliance.We will summarize the current status of CHB drug treatment,hoping to provide a reference for the selection of clinical antiviral drugs. 展开更多
关键词 Chronic hepatitis B Hepatitis B virus Anti virus Drug treatment therapy
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Antiviral therapy for hepatitis B virus infection is beneficial for the prognosis hepatocellular carcinoma
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作者 Hui Wan Yu-Xin Zhang +5 位作者 Guan-Yue Shan Jun-Ya Cheng Duan-Rui Qiao Yi-Ying Liu Wen-Na Shi Hai-Jun Li 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第1期1-9,共9页
In this editorial,we comment on the article by Mu et al,published in the recent issue of the World Journal of Gastrointestinal Oncology.We pay special attention to the immune tolerance mechanism caused by hepatitis B ... In this editorial,we comment on the article by Mu et al,published in the recent issue of the World Journal of Gastrointestinal Oncology.We pay special attention to the immune tolerance mechanism caused by hepatitis B virus(HBV)infection,the pathogenesis of hepatocellular carcinoma(HCC),and the role of antiviral therapy in treating HCC related to HBV infection.HBV infection leads to systemic innate immune tolerance by directly inhibiting pattern recognition receptor recognition and antiviral signaling pathways,as well as by inhibiting the immune functions of macrophages,natural killer cells and dendritic cells.In addition,HBV leads to an immunosuppressive cascade by expressing inhibitory molecules to induce exhaustion of HBV-specific cluster of differentiation 8+T cells,ultimately leading to long-term viral infection.The loss of immune cell function caused by HBV infection ultimately leads to HCC.Long-term antiviral therapy can improve the prognosis of patients with HCC and prevent tumor recurrence and metastasis. 展开更多
关键词 Hepatitis B virus Hepatocellular carcinoma Hepatitis B virus-DNA Immune tolerance Antiviral therapy
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Summary of the current guidelines for managing iatrogenic colorectal perforations and the evolving role of endoluminal vacuum therapy
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作者 Ahmed Tawheed Ibrahim Halil Bahcecioglu +3 位作者 Mehmet Yalniz Mubin Ozercan Ali Cagri Oral Mohamed El-Kassas 《World Journal of Clinical Cases》 SCIE 2025年第6期1-8,共8页
Colonoscopy represents a safe procedure that is widely used in medical practice either to diagnose or treat various gastrointestinal diseases.During the last few years,the incidence rate of perforations in colonoscopi... Colonoscopy represents a safe procedure that is widely used in medical practice either to diagnose or treat various gastrointestinal diseases.During the last few years,the incidence rate of perforations in colonoscopic procedures has increased,especially in therapeutic colonoscopies.The recent advancements in endoscopic techniques and gastrointestinal tumoral resection procedures such as endoscopic mucosal resection,endoscopic full-thickness resection,and endoscopic submucosal dissection(ESD)could be a risk factor for this increased risk.The incidence rate of mortality of serious colonoscopic perforations is 7.1%.The management plan for these perforations starts with conservative treatment in mild cases,endoscopic closure,and surgical management in severe cases.Recently,endoluminal vacuum therapy was found to be effective in the management of colorectal perforations and this has been reported in multiple case reports.This editorial provides an overview of the current guidelines for the management of iatrogenic colorectal perforations.These insights are from the perspectives of endoscopists and gastroenterologists.We also present a management algorithm based on the guidelines of the European Society of Gastrointestinal Endoscopy,the American Gastroenterological Association,and the World Society of Emergency Surgery.We also discussed in brief the use of endoluminal vacuum therapy in colorectal perforations. 展开更多
关键词 Colon RECTUM Iatrogenic colonic perforation COLONOSCOPY GUIDELINES Endovacuum Endolumical vacuum therapy Endoscopic management
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Advancing treatment strategies:Insights from network meta-analysis of hepatic arterial infusion chemotherapy for advanced hepatocellular carcinoma
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作者 Chun-Han Cheng Wen-Rui Hao Tzu-Hurng Cheng 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第1期252-255,共4页
This study examines the pivotal findings of the network meta-analysis of Zhou et al,which evaluated the efficacy of hepatic arterial infusion chemotherapy and combination therapies for advanced hepatocellular carcinom... This study examines the pivotal findings of the network meta-analysis of Zhou et al,which evaluated the efficacy of hepatic arterial infusion chemotherapy and combination therapies for advanced hepatocellular carcinoma(HCC).This meta-analysis suggests that therapeutic combinations have greater efficacy than do standard treatments.The article highlights the key insights that have the potential to shift current clinical practice and enhance outcomes for patients with advanced HCC.Additionally,this article discusses further research that can be conducted to optimize these treatments and achieve personalized care for patients with HCC. 展开更多
关键词 Hepatic arterial infusion chemotherapy Advanced hepatocellular carcinoma Combination therapy Network meta-analysis Treatment efficacy
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