Journal of Materials Chemistry B最新文献

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A self-assembled copper-artemisinin nanoprodrug as an efficient reactive oxygen species amplified cascade system for cancer treatment† 一种自组装的铜-青蒿素纳米药物,作为治疗癌症的高效活性氧放大级联系统。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-23 DOI: 10.1039/D4TB01237B
Xueyu Zhu, Chenyang Bi, Wei Cao, Shuangshuang Li, Chuting Yuan, Pengping Xu, Dongdong Wang, Qianwang Chen and Lei Zhang
{"title":"A self-assembled copper-artemisinin nanoprodrug as an efficient reactive oxygen species amplified cascade system for cancer treatment†","authors":"Xueyu Zhu, Chenyang Bi, Wei Cao, Shuangshuang Li, Chuting Yuan, Pengping Xu, Dongdong Wang, Qianwang Chen and Lei Zhang","doi":"10.1039/D4TB01237B","DOIUrl":"10.1039/D4TB01237B","url":null,"abstract":"<p >Chemodynamic therapy (CDT) is a tumor-specific intervention methodology, which is based on the upregulation of reactive oxygen species (ROS) content by triggering the Fenton or Fenton-like reaction within the tumor microenvironment (TME). However, there are still challenges in achieving high-efficiency CDT on account of both the limited intracellular hydrogen peroxide (H<small><sub>2</sub></small>O<small><sub>2</sub></small>) and delivery efficiency of Fenton metal ions. Copper-based nanotherapeutic systems have attracted extensive attention and have been widely applied in the construction of nanotherapeutic systems and multimodal synergistic therapy. Herein, we propose a strategy to synergize chemotherapy drugs that upregulate intracellular ROS content with chemodynamic therapy and construct an artemisinin-copper nanoprodrug for proof-of-concept. With the proposed biomimetic self-assembly strategy, we successfully construct an injectable nanoprodrug with suitable size distribution and high drug loading content (68.1 wt%) through the self-assembly of amphiphilic artemisinin prodrug and copper ions. After reaching the TME, both Cu<small><sup>2+</sup></small> ions and free AH drugs can be released from AHCu nanoprodrugs. Subsequently, the disassembled Cu<small><sup>2+</sup></small> ions are converted into Cu<small><sup>+</sup></small> ions by consuming the intracellular GSH. The generated Cu<small><sup>+</sup></small> ions serve as a highly efficient Fenton-like reagent for robust ROS generation from both AH and tumor-over-produced H<small><sub>2</sub></small>O<small><sub>2</sub></small>. Results show that the nanoprodrug can realize the cascade amplification of ROS generation <em>via</em> artemisinin delivery and subsequent <em>in situ</em> Fenton-like reaction and a high tumor inhibition rate of 62.48% <em>in vivo</em>. This work provides a promising strategy for the design and development of an efficient nanoprodrug for tumor-specific treatment.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142116582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanozymes in cancer immunotherapy: metabolic disruption and therapeutic synergy 癌症免疫疗法中的纳米酶:新陈代谢干扰与治疗协同作用。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-23 DOI: 10.1039/D4TB00769G
Xiangrui Xu, Yaowen Zhang, Chijun Meng, Wenzhuo Zheng, Lingfeng Wang, Chenyi Zhao and Feng Luo
{"title":"Nanozymes in cancer immunotherapy: metabolic disruption and therapeutic synergy","authors":"Xiangrui Xu, Yaowen Zhang, Chijun Meng, Wenzhuo Zheng, Lingfeng Wang, Chenyi Zhao and Feng Luo","doi":"10.1039/D4TB00769G","DOIUrl":"10.1039/D4TB00769G","url":null,"abstract":"<p >Over the past decade, there has been a growing emphasis on investigating the role of immunotherapy in cancer treatment. However, it faces challenges such as limited efficacy, a diminished response rate, and serious adverse effects. Nanozymes, a subset of nanomaterials, demonstrate boundless potential in cancer catalytic therapy for their tunable activity, enhanced stability, and cost-effectiveness. By selectively targeting the metabolic vulnerabilities of tumors, they can effectively intensify the destruction of tumor cells and promote the release of antigenic substances, thereby eliciting immune clearance responses and impeding tumor progression. Combined with other therapies, they synergistically enhance the efficacy of immunotherapy. Hence, a large number of metabolism-regulating nanozymes with synergistic immunotherapeutic effects have been developed. This review summarizes recent advancements in cancer immunotherapy facilitated by nanozymes, focusing on engineering nanozymes to potentiate antitumor immune responses by disturbing tumor metabolism and performing synergistic treatment. The challenges and prospects in this field are outlined. We aim to provide guidance for nanozyme-mediated immunotherapy and pave the way for achieving durable tumor eradication.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tb/d4tb00769g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of fiber-particle structures by electrospinning/electrospray combination as an intrinsic antioxidant and oxygen-releasing wound dressing 通过电纺丝/电喷雾组合制造纤维颗粒结构,作为内在抗氧化剂和氧气释放伤口敷料。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-22 DOI: 10.1039/D4TB00270A
Shima Soheili, Banafsheh Dolatyar, Mohammad Reza Adabi, Darya Lotfollahi, Mohsen Shahrousvand, Payam Zahedi, Ehsan Seyedjafari and Jamshid Mohammadi-Rovshandeh
{"title":"Fabrication of fiber-particle structures by electrospinning/electrospray combination as an intrinsic antioxidant and oxygen-releasing wound dressing","authors":"Shima Soheili, Banafsheh Dolatyar, Mohammad Reza Adabi, Darya Lotfollahi, Mohsen Shahrousvand, Payam Zahedi, Ehsan Seyedjafari and Jamshid Mohammadi-Rovshandeh","doi":"10.1039/D4TB00270A","DOIUrl":"10.1039/D4TB00270A","url":null,"abstract":"<p >In this study, we employed a combination of electrospinning and electrospray techniques to fabricate wound dressings with a particle-fiber structure, providing dual characteristics of oxygen-releasing and intrinsic antioxidant properties, simultaneously. The electrospun part of the dressing was prepared from a blend of polycaprolactone/gallic acid-<em>grafted</em>-gelatin (GA-<em>g</em>-GE), enabling intrinsic ROS scavenging. To the best of our knowledge, this is the first time that PCL/GA-<em>g</em>-GE was fabricated by electrospinning. Furthermore, polyvinyl pyrrolidone (PVP) microparticles, containing calcium peroxide nanoparticles (CNPs), were considered as the oxygen production agent through the electrospray part. The CNP content was 1% and 3% w/w of PVP while biopolymer:PCL was 10% w/w. The fabricated structures were characterized in terms of fiber/particle morphology, elemental analysis, oxygen release behavior, ROS inhibition capacity, and water contact angle assessments. The covalent bonding of gallic acid to gelatin was confirmed by <small><sup>1</sup></small>H-NMR, UV spectroscopy, and FTIR. According to the SEM results, the morphology of the prepared PCL/biopolymer fibers was bead-free and with a uniform average diameter. The analysis of released oxygen showed that by increasing the weight percentage of CNPs from 1 to 3 wt%, the amount of released oxygen increased from 120 mmHg to 195 mmHg in 24 h, which remained almost constant until 72 h. The obtained DPPH assay results revealed that the introduction of GA-<em>g</em>-GE into the fibrous structure could significantly improve the antioxidant properties of wound dressing compared to the control group without CNPs and modified gelatine. <em>In vitro</em>, the fabricated wound dressings were evaluated in terms of biocompatibility and the potential of the dressing to protect human dermal fibroblasts under oxidative stress and hypoxia conditions by an MTT assay. The presence of GA-<em>g</em>-GE led to remarkable protection of the cells against oxidative stress and hypoxia conditions. <em>In vivo</em> studies revealed that the incorporation of intrinsic ROS inhibition and oxygen-releasing properties could significantly accelerate the wound closure rate during the experimental period (7, 14, and 21 days). Additionally, histopathological investigations in terms of H&amp;E and Masson's trichrome staining showed that the incorporation of the two mentioned capabilities remarkably facilitated the wound-healing process.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanomaterial-based therapeutics for enhanced antifungal therapy 增强抗真菌治疗的纳米材料疗法。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-22 DOI: 10.1039/D4TB01484G
Fang Liu, Yongcheng Chen, Yue Huang, Qiao Jin and Jian Ji
{"title":"Nanomaterial-based therapeutics for enhanced antifungal therapy","authors":"Fang Liu, Yongcheng Chen, Yue Huang, Qiao Jin and Jian Ji","doi":"10.1039/D4TB01484G","DOIUrl":"10.1039/D4TB01484G","url":null,"abstract":"<p >The application of nanotechnology in antifungal therapy is gaining increasing attention. Current antifungal drugs have significant limitations, such as severe side effects, low bioavailability, and the rapid development of resistance. Nanotechnology offers an innovative solution to address these issues. This review discusses three key strategies of nanotechnology to enhance antifungal efficacy. Firstly, nanomaterials can enhance their interaction with fungal cells <em>via</em> ingenious surface tailoring of nanomaterials. Effective adhesion of nanoparticles to fungal cells can be achieved by electrostatic interaction or specific targeting to the fungal cell wall and cell membrane. Secondly, stimuli-responsive nanomaterials are developed to realize smart release of drugs in the specific microenvironment of pathological tissues, such as the fungal biofilm microenvironment and inflammatory microenvironment. Thirdly, nanomaterials can be designed to cross different physiological barriers, effectively addressing challenges posed by skin, corneal, and blood–brain barriers. Additionally, some new nanomaterial-based strategies in treating fungal infections are discussed, including the development of fungal vaccines, modulation of macrophage activity, phage therapy, the application of high-throughput screening in drug discovery, and so on. Despite the challenges faced in applying nanotechnology to antifungal therapy, its significant potential and innovation open new possibilities for future clinical antifungal applications.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Small intestine submucosa decorated 3D printed scaffold accelerated diabetic bone regeneration by ameliorating the microenvironment† 小肠粘膜下装饰三维打印支架通过改善微环境加速糖尿病骨再生
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-20 DOI: 10.1039/D4TB00772G
Jie Tan, Zecai Chen, Zhen Xu, Yafang Huang, Lei Qin, Yufeng Long, Jiayi Wu, Hantao Yang, Xuandu Chen, Weihong Yi, Ruiqiang Hang, Min Guan, Huaiyu Wang, Ang Gao and Dazhi Yang
{"title":"Small intestine submucosa decorated 3D printed scaffold accelerated diabetic bone regeneration by ameliorating the microenvironment†","authors":"Jie Tan, Zecai Chen, Zhen Xu, Yafang Huang, Lei Qin, Yufeng Long, Jiayi Wu, Hantao Yang, Xuandu Chen, Weihong Yi, Ruiqiang Hang, Min Guan, Huaiyu Wang, Ang Gao and Dazhi Yang","doi":"10.1039/D4TB00772G","DOIUrl":"10.1039/D4TB00772G","url":null,"abstract":"<p >The 3D printed scaffolds constructed from polymers have shown significant potential in the field of bone defect regeneration. However, the efficacy of these scaffolds can be markedly reduced in certain pathological conditions like diabetes, where an altered inflammatory microenvironment and diminished small blood vessels complicate the integration of these polymers with the host tissue. In this study, the bioactivity of a 3D-printed poly(lactide-<em>co</em>-glycolide) (PLGA) scaffold is enhanced through the integration of hydroxyapatite (HA), icariin (ICA), and small intestine submucosa (SIS), a form of decellularized extracellular matrix (dECM). The decoration of SIS on the 3D-printed PLGA/HA/ICA scaffold not only improves the mechanical and degradative performance, but also extends the release of ICA from the scaffold. Both <em>in vitro</em> and <em>in vivo</em> studies demonstrate that this functionalized scaffold mitigates the persistent inflammatory conditions characteristic of diabetic bone defects through inducing macrophages towards the M2 phenotype. Additionally, the scaffold promotes angiogenesis by enhancing the migration and tube formation of vascular cells. Furthermore, the synergistic effects of ICA and SIS with the HA scaffolds contribute to the superior osteogenic induction capabilities. This functionalization approach holds significant promise in advancing the treatment of bone defects within the diabetic population, paving a step forward in the application of polymer-based 3D printing technologies in regenerative medicine.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tb/d4tb00772g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanocellulose-short peptide self-assembly for improved mechanical strength and barrier performance† 纳米纤维素-短肽自组装,提高机械强度和阻隔性能。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-19 DOI: 10.1039/D4TB01359J
Alessandro Marchetti, Elisa Marelli, Greta Bergamaschi, Panu Lahtinen, Arja Paananen, Markus Linder, Claudia Pigliacelli and Pierangelo Metrangolo
{"title":"Nanocellulose-short peptide self-assembly for improved mechanical strength and barrier performance†","authors":"Alessandro Marchetti, Elisa Marelli, Greta Bergamaschi, Panu Lahtinen, Arja Paananen, Markus Linder, Claudia Pigliacelli and Pierangelo Metrangolo","doi":"10.1039/D4TB01359J","DOIUrl":"10.1039/D4TB01359J","url":null,"abstract":"<p >Cellulose nanofibers (CNF) are the most abundant renewable nanoscale fibers on Earth, and their use in the design of hybrid materials is ever more acclaimed, although it has been mostly limited, to date, to CNF derivatives obtained <em>via</em> covalent functionalization. Herein, we propose a noncovalent approach employing a set of short peptides – DFNKF, DF(I)NKF, and DF(F<small><sub>5</sub></small>)NKF – as supramolecular additives to engineer hybrid hydrogels and films based on unfunctionalized CNF. Even at minimal concentrations (from 0.1% to 0.01% w/w), these peptides demonstrate a remarkable ability to enhance CNF rheological properties, increasing both dynamic moduli by more than an order of magnitude. Upon vacuum filtration of the hydrogels, we obtained CNF-peptide films with tailored hydrophobicity and surface wettability, modulated according to the peptide content and halogen type. Notably, the presence of fluorine in the CNF-DF(F<small><sub>5</sub></small>)NKF film, despite being minimal, strongly enhances CNF water vapor barrier properties and reduces the film water uptake. Overall, this approach offers a modular, straightforward method to create fully bio-based CNF-peptide materials, where the inclusion of DFNKF derivatives allows for facile functionalization and material property modulation, opening their potential use in the design of packaging solutions and biomedical devices.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11342157/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of aptamer affinity using an artificial intelligence approach 利用人工智能方法预测适配体的亲和力。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-19 DOI: 10.1039/D4TB00909F
Arezoo Fallah, Seyed Asghar Havaei, Hamid Sedighian, Reza Kachuei and Abbas Ali Imani Fooladi
{"title":"Prediction of aptamer affinity using an artificial intelligence approach","authors":"Arezoo Fallah, Seyed Asghar Havaei, Hamid Sedighian, Reza Kachuei and Abbas Ali Imani Fooladi","doi":"10.1039/D4TB00909F","DOIUrl":"10.1039/D4TB00909F","url":null,"abstract":"<p >Aptamers are oligonucleotide sequences that can connect to particular target molecules, similar to monoclonal antibodies. They can be chosen by systematic evolution of ligands by exponential enrichment (SELEX), and are modifiable and can be synthesized. Even if the SELEX approach has been improved a lot, it is frequently challenging and time-consuming to identify aptamers experimentally. In particular, structure-based methods are the most used in computer-aided design and development of aptamers. For this purpose, numerous web-based platforms have been suggested for the purpose of forecasting the secondary structure and 3D configurations of RNAs and DNAs. Also, molecular docking and molecular dynamics (MD), which are commonly utilized in protein compound selection by structural information, are suitable for aptamer selection. On the other hand, from a large number of sequences, artificial intelligence (AI) may be able to quickly discover the possible aptamer candidates. Conversely, sophisticated machine and deep-learning (DL) models have demonstrated efficacy in forecasting the binding properties between ligands and targets during drug discovery; as such, they may provide a reliable and precise method for forecasting the binding of aptamers to targets. This research looks at advancements in AI pipelines and strategies for aptamer binding ability prediction, such as machine and deep learning, as well as structure-based approaches, molecular dynamics and molecular docking simulation methods.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A self-assembling bioactive oligopeptide hydrogel for the treatment of edema following prepuce surgery† 用于治疗包皮手术后水肿的自组装生物活性寡肽水凝胶。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-19 DOI: 10.1039/D4TB01456A
Jianyong Liu, Yu Pei, Yingying Huang, Haofei Jiang, Mike Pleass Tita Tadoh, Xixi Huang, Jintao Shen, Xiaoxi Zeng, Bin Zheng, Jingye Pan, Guoqiang Yang, Haihong Jiang, Limin Chen and Yunlong Zhou
{"title":"A self-assembling bioactive oligopeptide hydrogel for the treatment of edema following prepuce surgery†","authors":"Jianyong Liu, Yu Pei, Yingying Huang, Haofei Jiang, Mike Pleass Tita Tadoh, Xixi Huang, Jintao Shen, Xiaoxi Zeng, Bin Zheng, Jingye Pan, Guoqiang Yang, Haihong Jiang, Limin Chen and Yunlong Zhou","doi":"10.1039/D4TB01456A","DOIUrl":"10.1039/D4TB01456A","url":null,"abstract":"<p >Edema of the prepuce is a common clinical complication following circumcision in urology. Nevertheless, the principal method of gauze wrapping in clinical practice has not yet been demonstrated to be an effective solution to the problem of postoperative edema. It is therefore evident that the development of functional dressings for the treatment of post-circumcision edema has considerable potential for both clinical application and translational significance. The objective of this study was to develop a single-component bioactive oligopeptide hydrogel dressing with favorable anti-inflammatory, pro-angiogenesis properties and biosafety for the treatment of edema following prepuce surgery. A hexapeptide (Ac-FFFGHK-OH) hydrogelator was designed and synthesized through the N-terminal modification of a human-derived glycine–histidine–lysine tripeptide (GHK) with an <em>N</em>-acetylated phenylalanine tripeptide (Ac-FFF). The bioactive Ac-FFFGHK-OH hydrogel can be prepared through a facile self-assembly method. Furthermore, a novel experimental animal model of post-circumcision edema in Sprague–Dawley rats was constructed and the <em>in vivo</em> anti-edema effect of the Ac-FFFGHK-OH hydrogel was confirmed. The mechanism of action in relieving edema was also investigated by <em>in vitro</em> cell experiments. This work may inspire alternative thinking for the development of mono-component bioactive oligopeptide hydrogels for the treatment of edema in various diseases.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of surface-modified porous silicon nanoparticles to deliver temozolomide with enhanced pharmacokinetic and therapeutic efficacy for intracranial glioblastoma in mice† 使用表面修饰的多孔硅纳米粒子递送替莫唑胺,增强了对小鼠颅内胶质母细胞瘤的药代动力学和疗效。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-16 DOI: 10.1039/D4TB00631C
Seulgi Shin, Hyejung Jo, Tomoyo Agura, Seoyoun Jeong, Hyovin Ahn, Yejin Kim and Jae Seung Kang
{"title":"Use of surface-modified porous silicon nanoparticles to deliver temozolomide with enhanced pharmacokinetic and therapeutic efficacy for intracranial glioblastoma in mice†","authors":"Seulgi Shin, Hyejung Jo, Tomoyo Agura, Seoyoun Jeong, Hyovin Ahn, Yejin Kim and Jae Seung Kang","doi":"10.1039/D4TB00631C","DOIUrl":"10.1039/D4TB00631C","url":null,"abstract":"<p >Glioblastoma (GBM) is one of the most common and fatal primary brain tumors, with a 5-year survival rate of 7.2%. The standard treatment for GBM involves surgical resection followed by chemoradiotherapy, and temozolomide (TMZ) is currently the only approved chemotherapeutic agent for the treatment of GBM. However, hydrolytic instability and insufficient drug accumulation are major challenges that limit the effectiveness of TMZ chemotherapy. To overcome these limitations, we have developed a drug delivery platform utilizing porous silicon nanoparticles (pSiNPs) to improve the stability and blood–brain barrier penetration of TMZ. The pSiNPs are synthesized <em>via</em> electrochemical etching and functionalized with octadecane. The octadecyl-modified pSiNP (pSiNP-C<small><sub>18</sub></small>) demonstrates the superiority of loading efficiency, <em>in vivo</em> stability, and brain accumulation of TMZ. Treatment of intracranial tumor-bearing mice with TMZ-loaded pSiNP-C<small><sub>18</sub></small> results in a decreased tumor burden and a corresponding increase in survival compared with equivalent free-drug dosing. Furthermore, the mice treated with TMZ-loaded nanoparticles do not exhibit <em>in vivo</em> toxicity, thus underscoring the preclinical potential of the pSiNP-based platform for the delivery of therapeutic agents to gliomas.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tb/d4tb00631c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Methods to achieve tissue-mimetic physicochemical properties in hydrogels for regenerative medicine and tissue engineering 在用于再生医学和组织工程的水凝胶中实现组织模拟理化特性的方法。
IF 6.1 3区 医学
Journal of Materials Chemistry B Pub Date : 2024-08-16 DOI: 10.1039/D4TB00716F
Rabia Fatima and Bethany Almeida
{"title":"Methods to achieve tissue-mimetic physicochemical properties in hydrogels for regenerative medicine and tissue engineering","authors":"Rabia Fatima and Bethany Almeida","doi":"10.1039/D4TB00716F","DOIUrl":"10.1039/D4TB00716F","url":null,"abstract":"<p >Hydrogels are water-swollen polymeric matrices with properties that are remarkably similar in function to the extracellular matrix. For example, the polymer matrix provides structural support and adhesion sites for cells in much of the same way as the fibers of the extracellular matrix. In addition, depending on the polymer used, bioactive sites on the polymer may provide signals to initiate certain cell behavior. However, despite their potential as biomaterials for tissue engineering and regenerative medicine applications, fabricating hydrogels that truly mimic the physicochemical properties of the extracellular matrix to physiologically-relevant values is a challenge. Recent efforts in the field have sought to improve the physicochemical properties of hydrogels using advanced materials science and engineering methods. In this review, we highlight some of the most promising methods, including crosslinking strategies and manufacturing approaches such as 3D bioprinting and granular hydrogels. We also provide a brief perspective on the future outlook of this field and how these methods may lead to the clinical translation of hydrogel biomaterials for tissue engineering and regenerative medicine applications.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tb/d4tb00716f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141989844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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