Advanced Materials Interfaces
·
2023
·
IF 5.4
Weixing Wang,Yifeng Yu,Hao Zhang,Zhiwei Wang,Honglian Dai,Aixi Yu
To solve the problem of tendon adhesion after an operation, an anti-adhesion membrane is designed, which can inhibit the exogenous healing of tendons and promote endogenous healing. Here, poly[3(S)-methyl-morpholine-2,5-dione- co -lactic acid] P(MMD- co -LA) containing alanine units is obtained by melt ring-opening polymerization (ROP). It can effectively reduce the production of acidic degradation products that cause aseptic inflammation. Then a kind of oriented P(MMD- co -LA)/deferoxamine (DFO) anti-adhesion membrane with good mechanical properties, cell adhesion properties, and induced macrophage polarization properties is constructed by electrospinning. In vitro and in vivo studies have shown that oriented fibrous membranes can down-regulate the expression of inflammatory cytokines. In addition, the fibrous membrane can up-regulate the expression of angiogenesis-related genes, namely HIF1-α, SDF-1α, and VEGF, by releasing DFO in situ, thus promoting the revascularization of tendon defects and providing nutritional support for endogenous tendon healing. This method provides a new barrier strategy to reduce tendon adhesion through anti-inflammation combined with vascularization to inhibit exogenous tendon healing while promoting tendon endogenous healing. The results provide essential insights into the corresponding regulation of the tendon healing microenvironment.
研究领域:
生物医学工程
·
组织工程
·
材料科学
·
再生医学
✓ 已验证
DOI
高影响因子
Biomaterials Science
·
2020
·Vol. 9
·期 6
·2090-2102
·
IF 6.183
Rui Shi,Jingshuang Zhang,Kun Niu,Weiyang Li,Ni Jiang,Jianlin Li,Qingsong Yu,Chengai Wu
Deferoxamine (DFO), an iron chelator regarded as a hypoxic analogue, has been reported to be involved in angiogenesis and osteogenic differentiation. In this study, DFO was loaded into nanospheres, Then, DFO-loaded NPs and free DFO were co-encapsulated in nanofibers through coaxial electrospinning and its effects on cell viability, migration, and osteogenic differentiation, and the potential mechanisms were investigated. The results suggested that DFO maintained cell viability and promoted the migration of human mesenchymal stem cells (hMSCs) and MC3T3-E1 cells. ALP activity, calcium deposition, and expression of osteogenesis-related markers, including collagen, osteocalcin, and osteopontin, were all increased with DFO. Moreover, hypoxia-inducible factor-1α, transforming growth factor-β, and Smad2 were upregulated with DFO, which indicated activation of the TGF-β1/Smad2 signalling pathway. This may contribute to osteogenic differentiation of cells.
研究领域:
生物材料
·
组织工程
·
再生医学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2023
·
IF 13.1
Chengzhong Xu,Tao Lin,Xiaoliang Zhao,Yanchang Gan,Jianxing Huang,Jie Zhang,Haibin Zheng,Chunyi Pu,Rurong Lin,Bing Yan,Guoju Hu,Qiaolan Liu,Bo Yu,Songjian Li,Honghao Hou
Due to the particularity of the tendon-to-bone interface, the integration of tendon graft and bone after anterior cruciate ligament (ACL) reconstruction is the key to the success of the surgery. This reconstruction requires early on-demand angiogenesis and osteogenesis to promote early and rapid healing of the tendon-to-bone interface. Here, a hypoxic-mimetic 3D porous hydrogel was prepared with a multi-responsive hybrid interpenetrating network to the tendon-to-bone interfacial microenvironment under a highly hypoxic, acidic, reactive oxygen species (ROS), and related enzyme-enriched state. The hypoxia agent DFO can be effectively control-released adaptive to the stimulation of tendon-to-bone interfacial microenvironment, to upregulate HIF-1α, promote the expression of vascular endothelial growth factor, bone morphogenetic protein 2 and runt-related transcription factor 2, thereby promoting rapid early angiogenesis and bone formation on demand. At the same time, it can effectively resist oxidative stress, reduce ROS and the inflammatory response, promote better integration of the tendon-to-bone interface. Furthermore, in vivo experiments combining micro-CT, histological and biomechanical analysis also showed effective promotion of early and rapid tendon-to-bone healing. In conclusion, our study may provide a new therapeutic strategy for the integration of the tendon-to-bone interface.
研究领域:
生物医学工程
·
组织工程
·
骨科
·
再生医学
✓ 已验证
DOI
高影响因子
MATERIALS & DESIGN
·
2025
·
IF 7.9
Ruping Li,Yanxin Wu,Lvchen He,Ruotong Yang,Kaipei Luo,Fei Gao,Haipo Yuan,Yu Zheng,Yao He
The wound of diabetes is closely related to inflammation, reactive oxygen species production, impaired angiogenesis and bacterial infection. It is urgent to develop a hydrogel dressing with antibacterial and anti-inflammatory properties and promoting angiogenesis to achieve efficient wound healing. Carboxymethyl chitosan (CMCS) is obtained by chemical modification of chitosan, which has excellent biocompatibility and rapid gel properties. Deferiptyline (DFO) has the ability to increase the expression of HIF-1α, which promotes the release of endogenous growth factors related to angiogenesis. Luteolin (LUT), the active ingredient of traditional Chinese medicine, shows unique advantages in treating diabetes wounds. In this study, polysaccharide hydrogel prepared by combining DFO and LUT has excellent antibacterial and antioxidant properties, promotes cell migration, releases LUT and DFO at the wound site, and enhances angiogenesis through HIF-1α and VEGFA pathways. The hydrogel synergistically promotes cell migration, angiogenesis and effectively eliminates drug-resistant bacteria, which is beneficial to wound healing of diabetes. This study has created a multifunctional hydrogel loaded with DFO and crosslinked polysaccharide, an active ingredient of traditional Chinese medicine, with sustained release, enhanced permeability and great biocompatibility, which can be used as an excellent antibacterial dressing for diabetes wounds.
研究领域:
生物材料学
·
医学
·
药理学
✓ 已验证
产品关联
DOI
高影响因子
Biomedical Materials
·
2024
·
IF 3.9
Yun Qiu,Yu Zeng,Chun Zhang,Xiaorui Lv,Yating Ling,Yu Si,Tao Guo,Yinying Ni,Jingwen Zhang,Changgen Xu,Ziyu Wang,Jiabo Hu
Traumatic brain injury (TBI) produces excess iron, and increased iron accumulation in the brain leads to lipid peroxidation and reactive oxygen species (ROS), which can exacerbate secondary damage and lead to disability and death. Therefore, inhibition of iron overload and oxidative stress has a significant role in the treatment of TBI. Functionalized hydrogels with iron overload inhibiting ability and of oxidative stress inhibiting ability will greatly contribute to the repair of TBI. Herein, an injectable, post-traumatic microenvironment-responsive, ROS-responsive hydrogel encapsulated with deferrioxamine mesylate (DFO) was developed. The hydrogel is rapidly formed via dynamic covalent bonding between phenylboronic acid grafted hyaluronic acid (HA-PBA) and polyvinyl alcohol (PVA), and phenylboronate bonds are used to respond to and reduce ROS levels in damaged brain tissue to promote neuronal regeneration and recovery. The release of DFO from HA-PBA/PVA hydrogels in response to ROS further promotes neuronal regeneration and recovery by relieving iron overload and thus eradicating ROS. In the Feeney model of Sprague Dawley (SD) rats, HA-PBA/PVA/DFO hydrogel treatment significantly improved the behavior of TBI rats and reduced the area of brain contusion in rats. In addition, HA-PBA/PVA/DFO hydrogel significantly reduced iron overload to reduce ROS and could effectively promote post-traumatic neuronal recovery. Its effects were also explored, and notably, HA-PBA/PVA/DFO hydrogel can reduce iron overload as well as ROS, thus protecting neurons from death. Thus, this injectable, biocompatible and ROS-responsive drug-loaded hydrogel has great potential for the treatment of TBI. This work suggests a novel method for the treatment of secondary brain injury by inhibiting iron overload and the oxidative stress response after TBI.
研究领域:
神经科学
·
药学
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Advances
·
2025
·
IF 4.7
Shengjie Wang,Wei Liu,Chao Yang,Xianlong Zhang,Chunming Lyu
This study aimed to develop a novel artificial joint prosthesis material with osteogenic properties. Deferoxamine mesylate (DFO) was immobilized on the porous surface of sulfonated polyetheretherketone (SPEEK) through polydopamine (PDA), resulting in a novel material designated as DFO-PDA@SPEEK (Abbrev. DFO-PS). DFO-PS induced macrophage M2 phenotype polarization, reduced inflammatory factor expression, promoted osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs), and enhanced implant osseointegration and osteogenic capacity. In vitro evaluation demonstrated that DFO-PS significantly modulated immune and inflammatory responses, promoted angiogenesis, and enhanced osteogenic differentiation. In the rat model with femoral bone defect, in comparison to the control group, the DFO-PS group exhibited a 1.22-fold increase in trabecular thickness and a 1.51-fold enhancement in maximum pull-out force. This work demonstrates that DFO-PS represents a promising strategy for constructing multifunctional implants with biomineralization and immunomodulation properties for bone joint replacement.
研究领域:
生物材料学
·
免疫学
·
骨科医学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2025
·
IF 4.7
Kai Chen,Liu Luo,Ruolan Tao,Muzi Li,Shuqi Qu,Xiaofang Wu,Xinyue Zhang,Haiyan Feng,Ziqiang Zhu,Dekun Zhang
The application of a three-dimensional (3D)-printed biological functional scaffold in the repair of bone defects is a promising strategy. In this study, strontium-containing hydroxyapatite (SrHA) powder was synthesized by the hydrothermal method, and then poly(ε-caprolactone) (PCL)/HA and PCL/SrHA composite scaffolds were prepared by the high-temperature melt extrusion 3D printing technology. The basic physical and chemical properties, in vitro biological properties, osteogenesis, and angiogenesis abilities of the scaffold were studied. The results showed that HA and SrHA were uniformly embedded in the composite scaffold, and the scaffold exhibited a 3D interconnected porous structure and rough microsurface. The in vitro release curve showed that Sr2+ and Ca2+ were continuously released from the PCL/SrHA scaffold. In order to verify the performance of the composite scaffold in bone regeneration, the proliferation and osteogenic differentiation of mouse embryonic osteoblasts (MC3T3E1) grown on the scaffold were evaluated. The experimental results showed that the incorporation of SrHA significantly promoted cell proliferation. Compared with the PCL/HA scaffold, the PCL/SrHA scaffold could better promote cell osteogenic differentiation. Deferoxamine (DFO) was loaded on the surface of the PCL/SrHA scaffold. By studying the proliferation, angiogenesis, and expression of osteogenesis and angiogenesis-related genes of human umbilical vein endothelial cells (HUVECs) on PCL/SrHA@DFO scaffold, it was verified that DFO had the ability to promote angiogenesis. It could induce angiogenesis in vitro in combination with Sr2+. Therefore, we believe that the composite scaffold has potential application prospects in the field of bone tissue engineering.
研究领域:
生物材料学
·
组织工程学
·
医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Theranostics
·
2025
·Vol. 15
·期 15
·7820
·
IF 13.3
Tuo Zhang,Zhiyi Sheng,Jixian Zhang,Heng Zhang,Yan Zhang,Yunpeng Du,Xiangxin Liu,Zhu Hu,Qiyuan Luo,Guoqiang Xu,Yuan Gao,Meina He,Tengxiang Chen
Premature ovarian failure (POF) is a prevalent and lethal adverse event that severely affects female cancer patients receiving chemotherapy. It is highly correlated with the collateral damage to ovarian granulosa cells caused by ferroptosis. The excessive iron accumulation in the intracellular labile iron pool (LIP) and the aberrant generation of reactive oxygen species (ROS) is the major cause of ferroptosis. No compounds with both ferroptosis inhibition functions and ovarian-targeting specificity that do not reduce systemic chemotherapeutic efficacy have been successful in treating the POF in the clinic trials. We herein in report a multifunctional FSH-mPDA@DFO nanoparticle that can prevent chemotherapy-induced DFO by targeting LIP and ROS to restrict ferroptosis. The FSH-mPDA@DFO are constructed by encapsulating deferoxamine (DFO) within mesoporous polydopamine nanoparticles conjugated with an ovarian granulosa cell-targeting peptide (FSHβ). They downregulate transferrin receptor (TFRC) expression, reduce cellular iron ion uptake, and inhibit ferritinophagy-mediated iron mobilization, thereby ameliorating LIP overload and regulating iron metabolism. More importantly, FSH-mPDA@DFO nanoparticles can specifically accumulate in the mitochondria and suppress excessive mitophagy to preserve mitochondrial integrity and attenuate iron release and ROS generation. In vivo experiments demonstrate that FSH-mPDA@DFO nanoparticles improve oocyte quantity and quality while restoring fertility and endocrine homeostasis in chemotherapy-induced POF mice. Collectively, FSH-mPDA@DFO nanoparticles hold a great potential for clinical prevention and treatment of POF patients.
研究领域:
纳米医学
·
生殖医学
·
肿瘤学
·
细胞生物学
·
药理学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Bio
·
2022
·
IF 10.761
Lei Han,Xianzhen Dong,Tong Qiu,Zhaona Dou,Lin Wu,Honglian Dai
Wallerian degeneration after peripheral nerve injury (PNI), that is, the autonomous degeneration of distal axons, leads to an imbalance of iron homeostasis and easily induces oxidative stress caused by iron overload. Inspired by the process of nerve degeneration and regeneration, the design of a functional electrospinning scaffold with iron chelating ability exhibited the importance of reconstructing a suitable microenvironment. Here, an electrospinning scaffold based on deferoxamine and poly(3(S)-methyl-morpholine-2,5-dione -co- lactone) (PDPLA/DFO) was constructed. This work aims to explore the promotion of nerve regeneration by the physiological regulation of the scaffold. In vitro , PDPLA/DFO films mitigated the reduction of glutathione and the inactivation of Glutathione peroxidase 4 caused by iron overload. In addition, they decreased reactive oxygen species, relieve the stress of the endoplasmic reticulum and mitochondria, and reduce cell apoptosis. In vivo , PDPLA/DFO conduits constructed the anti-inflammatory microenvironment and promoted cell survival by alleviating iron overload and organelle stress. In conclusion, PDPLA/DFO guidance conduits targeted the distal iron overload and promoted nerve regeneration. It provides novel ideas for designing nerve conduits targeting the distal microenvironment.
研究领域:
神经科学
·
材料科学
·
再生医学
✓ 已验证
DOI
PubMed
高影响因子
MATERIALS & DESIGN
·
2024
·
IF 7.6
Yanyan Meng,Shaoqing Chen,Pengyin Li,Cheli Wang,Xinye Ni
Melanoma is a highly invasive and lethal skin cancer with a strong tendency to metastasize and has a poor prognosis. Radiotherapy is one of the important treatments for melanoma. In this study, monoglyceride solid lipid nanoparticles (MG SLNs) were wrapped with the B16-F10 cell membrane (B16 CM) for the fabrication of B16@MG. B16@MG had low toxicity and specifically targeted B16-F10 cells. B16-F10 tumor–bearing mouse model showed that indocyanine green (ICG) -loaded B16@MG achieved long-term accumulation in the tumor and facilitated the localization of the tumor boundary. MG SLNs were encapsulated with methyl 5-aminolevulinate (MLA) and desferrioxamine (DFO), and B16 CM was wrapped around their surfaces to obtain B16@MG–MLA–DFO.MLA was metabolized to protoporphyrin IX (PpIX) in the cells and DFO reduced the content of iron ion in the cells, blocked the biotransformation of PpIX, and promoted the accumulation of PpIX in the cells. The results of mitochondrial reactive oxygen species (ROS) and membrane potential detection showed that PpIX enhanced the generation of ROS, caused DNA and mitochondrial damage, and led to the apoptosis of tumor cells under radiotherapy. In B16-F10 tumor–bearing mice, B16@MG–MLA–DFO can improve the efficacy of radiotherapy and allow the integration of diagnosis and treatment.
研究领域:
肿瘤学
·
纳米技术
·
药理学
·
放射生物学
✓ 已验证
产品关联
DOI
高影响因子
Biomaterials Science
·
2021
·Vol. 9
·期 7
·2631-2646
·
IF 6.843
Mengru Geng,Qianqian Zhang,Jiani Gu,Jin Yang,Haibo Du,Yating Jia,Xiaojun Zhou,Chuanglong He
Three-dimensional (3D) printed scaffolds provide a promising prospective for application in bone tissue engineering. 3D printed scaffolds with micro- and nano-fibrous structures that facilitate cell adhesion and migration, and combined vascularization and osteoinduction bioactivity will be ideal implants for bone defect repair. Here, we fabricated a 3D printed biodegradable poly (glycerol-co-sebacic acid-co-L-lactic acid-co-polyethylene glycol) (PGSLP)-based scaffold that was internally filled with gelatin nanofibers and allowed the local release of deferoxamine (DFO), which is essential for angiogenesis and osteogenesis in bone regeneration. The nanofibrous structured gelatin/PGSLP (NGP) scaffold was fabricated using a thermally induced phase separation (TIPS) technique, and the macroporous structured gelatin/PGSLP (MGP) scaffold was prepared by directly freeze-drying. The in vitro experiments demonstrated that both DFO-loaded NGP and DFO-loaded MGP scaffolds can promote the migration and tubular formation of human umbilical vein endothelial cells (HUVECs), and enhance the mineralized nodule formation and osteogenic-related gene expression during osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs). In a rat critical-sized calvarial defect model, the results suggested that the scaffolds with DFO loading significantly promote the vascular formation and accelerate bone regeneration, while the enhancement of vascularization and osteogenesis in vivo in DFO-loaded NGP scaffold was better than that in DFO-loaded MGP scaffold. Therefore, the constructed PGLSP-based scaffolds with micro- and nano-fibrous structures would be promising candidates to match the structural and functional requirements for vascularized bone regeneration.
研究领域:
组织工程
·
生物医学工程
·
生物材料
·
再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Bioactive Materials
·
2024
·
IF 18
Lili Sun,Haoyi Niu,Yuqiong Wu,Shiyan Dong,Xuefeng Li,Betty Y.S. Kim,Changsheng Liu,Yifan Ma,Wen Jiang,Yuan Yuan
Repair of large bone defects caused by severe trauma, non-union fractures, or tumor resection remains challenging because of limited regenerative ability. Typically, these defects heal through mixed routines, including intramembranous ossification (IMO) and endochondral ossification (ECO), with ECO considered more efficient. Current strategies to promote large bone healing via ECO are unstable and require high-dose growth factors or complex cell therapy that cause side effects and raise expense while providing only limited benefit. Herein, we report a bio-integrated scaffold capable of initiating an early hypoxia microenvironment with controllable release of low-dose recombinant bone morphogenetic protein-2 (rhBMP-2), aiming to induce ECO-dominated repair. Specifically, we apply a mesoporous structure to accelerate iron chelation, this promoting early chondrogenesis via deferoxamine (DFO)-induced hypoxia-inducible factor-1α (HIF-1α). Through the delicate segmentation of click-crosslinked PEGylated Poly (glycerol sebacate) (PEGS) layers, we achieve programmed release of low-dose rhBMP-2, which can facilitate cartilage-to-bone transformation while reducing side effect risks. We demonstrate this system can strengthen the ECO healing and convert mixed or mixed or IMO-guided routes to ECO-dominated approach in large-size models with clinical relevance. Collectively, these findings demonstrate a biomaterial-based strategy for driving ECO-dominated healing, paving a promising pave towards its clinical use in addressing large bone defects.
研究领域:
组织工程
·
骨再生
·
生物材料
·
骨科
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）