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Biocompatibility and therapeutic efficacy of crosslinked hydrogel filled 3D-printed nerve conduit for sacral nerve injury repair
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-03-03 DOI: 10.1016/j.biomaterials.2025.123230
Jiajia Lu , Yongchuan Li , Jiao Cai , Xingwei Jin , Guangxin Chu , Hai Jin , Lei Zhu , Aimin Chen
{"title":"Biocompatibility and therapeutic efficacy of crosslinked hydrogel filled 3D-printed nerve conduit for sacral nerve injury repair","authors":"Jiajia Lu ,&nbsp;Yongchuan Li ,&nbsp;Jiao Cai ,&nbsp;Xingwei Jin ,&nbsp;Guangxin Chu ,&nbsp;Hai Jin ,&nbsp;Lei Zhu ,&nbsp;Aimin Chen","doi":"10.1016/j.biomaterials.2025.123230","DOIUrl":"10.1016/j.biomaterials.2025.123230","url":null,"abstract":"<div><div>Neurological system injuries are debilitating conditions that significantly impact patients' quality of life. This study investigated using a polycaprolactone (PCL) nerve conduit loaded with anti-epidermal growth factor receptor (EGFR) hydrogel and neural stem cells (NSCs) for treating sacral nerve injury (SNI) in rats to explore its neural repair effects. The results demonstrate that the combined transplantation therapy using a 3D printed scaffold filled with crosslinked hydrogel and NSCs effectively improves SNI, with the PCL Nerve conduit showing potential promotion of neuronal differentiation. This research outcome provides a novel approach to the treatment of nerve injuries.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"320 ","pages":"Article 123230"},"PeriodicalIF":12.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Kidney-targeting DNA tetrahedral molecular cage synergistically inhibits acute kidney injury by clearing ROS and activating HO-1
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-03-03 DOI: 10.1016/j.biomaterials.2025.123237
Yu Ren , Yuhang Dong , Zhi Li , Keying Xu , Jiafeng Xu , Xiangyu Li , Mengmeng Zhang , Changlu Xu , Min Yang , Min Lee , Xiaoming Meng , Jie Wang
{"title":"Kidney-targeting DNA tetrahedral molecular cage synergistically inhibits acute kidney injury by clearing ROS and activating HO-1","authors":"Yu Ren ,&nbsp;Yuhang Dong ,&nbsp;Zhi Li ,&nbsp;Keying Xu ,&nbsp;Jiafeng Xu ,&nbsp;Xiangyu Li ,&nbsp;Mengmeng Zhang ,&nbsp;Changlu Xu ,&nbsp;Min Yang ,&nbsp;Min Lee ,&nbsp;Xiaoming Meng ,&nbsp;Jie Wang","doi":"10.1016/j.biomaterials.2025.123237","DOIUrl":"10.1016/j.biomaterials.2025.123237","url":null,"abstract":"<div><div>Acute kidney injury (AKI) is a major cause of mortality in hospitalized patients, yet effective therapeutic interventions remain underdeveloped. To address this critical need, we have employed tetrahedral framework nucleic acid (tFNA) as a carrier to self-assemble a complex incorporating G-quadruplex and hemin (G4/Hemin). This novel formulation exhibits uniform particle size, targeted delivery, and significant therapeutic efficacy for AKI. In a chemotherapy-induced AKI model, G4/Hemin-tFNA preferentially accumulated in the renal tubules, significantly mitigating drug-induced renal tubular injury. In healthy mice, G4/Hemin-tFNA was rapidly cleared from circulation due to efficient renal filtration. Safety evaluations conducted over a continuous 30-day period indicated minimal side effects associated with G4/Hemin-tFNA administration. Mechanistic studies elucidated three primary molecular mechanisms through which G4/Hemin-tFNA exerts its therapeutic effects in AKI: 1) Enhanced Renal Targeting. G4/Hemin-tFNA facilitates effective renal targeting and protection during blood circulation, leading to significant accumulation of drug within the kidneys. 2) Reactive Oxygen Species (ROS) Clearance. The complex exhibits peroxidase-like activity, enabling the rapid clearance of ROS at the site of AKI lesions, thereby inhibiting the oxidative stress progression. 3) Activation of heme oxygenase-1 (HO-1). G4/Hemin-tFNA selectively activates HO-1, enhancing the concentration of anti-inflammatory factors at inflamed sites and promoting an anti-inflammatory microenvironment. Collectively, these findings demonstrate that G4/Hemin-tFNA is a safe and effective therapeutic agent for AKI. By activating HO-1 and clearing ROS, G4/Hemin-tFNA inhibits disease progression, offering a promising approach for the development of future AKI therapies.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"320 ","pages":"Article 123237"},"PeriodicalIF":12.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143550615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Mucus-penetrating nanomotor system strengthens mucosal immune response to in situ bacterial vaccine against severe bacterial pneumonia
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-03-03 DOI: 10.1016/j.biomaterials.2025.123236
Ting Song , Nan Li , Qinhua Zuo , Linghong Huang , Zonghua Liu , Zhong Guo
{"title":"Mucus-penetrating nanomotor system strengthens mucosal immune response to in situ bacterial vaccine against severe bacterial pneumonia","authors":"Ting Song ,&nbsp;Nan Li ,&nbsp;Qinhua Zuo ,&nbsp;Linghong Huang ,&nbsp;Zonghua Liu ,&nbsp;Zhong Guo","doi":"10.1016/j.biomaterials.2025.123236","DOIUrl":"10.1016/j.biomaterials.2025.123236","url":null,"abstract":"<div><div>Pathogens causing major infectious diseases primarily invade through mucosal tissues. Promptly killing these pathogens at the mucosal site and constructing mucosal vaccines in situ can prevent further infections and induce robust mucosal immune responses and memory to prevent reinfection. In this study, we utilized chemotherapy, sonodynamic therapy, and gas therapy to eliminate <em>Streptococcus pneumoniae</em> (<em>S. pneumoniae</em>) colonizing the nasal mucosa. Simultaneously, an in situ pneumococcal vaccine was constructed to elicit specific immune responses and memory. Poly-<span>l</span>-arginine (PArg)-modified ZIF-8 metal-organic frameworks (MOFs) loaded with the ultrasonic sensitizer protoporphyrin IX (PpIX) killed <em>S. pneumoniae</em> in the nasal cavity by multiple mechanisms in the presence of ultrasound. When stimulated by ultrasound, PpIX not only generates reactive oxygen species (ROS) for antimicrobial effect, but these ROS also catalyze the release of nitric oxide (NO) from PArg. NO exerts a motor-like effect that facilitates more efficient passage of nanoparticles through the mucus layer of the alveoli. The immunogenic bacterial debris formed a vaccine formulation by complexing with PArg, which adhered electrostatically to the mucosal surface, facilitating in situ vaccination and inducing mucosal immune responses and memory. This cascade-based combination therapy enabled rapid bacterial eradication and long-term immune prevention. It shortens the traditional vaccine development process, eliminates the spatial distance from pathogen invasion to vaccine development, significantly cuts costs, and addresses vaccine failure due to pathogen mutations. This approach offers a groundbreaking strategy for mucosal vaccine development and the prevention of major infectious diseases.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"320 ","pages":"Article 123236"},"PeriodicalIF":12.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Nanozyme-functionalized microalgal biohybrid microrobots in inflammatory bowel disease treatment
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-03-01 DOI: 10.1016/j.biomaterials.2025.123231
Jinmei Yang , Jiamin Ye , Runtan Li , Ruiyan Li , Xinting Liu , Jingwen Han , Yiwen Yang , Nana Ran , Mengyu Yuan , Zhuhong Zhang , Wei Chong , Xiaoyuan Ji
{"title":"Nanozyme-functionalized microalgal biohybrid microrobots in inflammatory bowel disease treatment","authors":"Jinmei Yang ,&nbsp;Jiamin Ye ,&nbsp;Runtan Li ,&nbsp;Ruiyan Li ,&nbsp;Xinting Liu ,&nbsp;Jingwen Han ,&nbsp;Yiwen Yang ,&nbsp;Nana Ran ,&nbsp;Mengyu Yuan ,&nbsp;Zhuhong Zhang ,&nbsp;Wei Chong ,&nbsp;Xiaoyuan Ji","doi":"10.1016/j.biomaterials.2025.123231","DOIUrl":"10.1016/j.biomaterials.2025.123231","url":null,"abstract":"<div><div>Oral drugs are the most direct and effective strategy for the treatment of gastrointestinal diseases. However, the harsh environment of gastric juice, lack of targeted lesion sites, and rapid metabolism present difficulties in the development of oral drugs. This research introduces a nanozyme-functionalized microalgal biohybrid microrobot (Hp@CS-PNAs@PAA) with a novel mechanism for treating inflammatory bowel disease (IBD) by leveraging the therapeutic advantages of microalgae and nanozymes. The microrobot uniquely combines the natural antioxidant capacity of <em>Hematococcus pluvialis</em> (Hp) microalgae and the catalytically active enzyme-mimicking properties of platinum-based nanoparticle assemblies (PNAs), enabling enhanced scavenging of reactive oxygen species (ROS) and targeted anti-inflammatory effects. Through its layered design, the Hp@CS-PNAs@PAA microrobot can navigate the gastrointestinal tract, resist degradation, and target inflamed colon tissues via electrostatic interactions, achieving extended retention and prolonged therapeutic action at inflammation sites. This study demonstrated that the synergistic anti-inflammatory effects of the microrobot derive from its ability to reduce ROS, inhibit proinflammatory cytokines, and promote the expression of tight junction proteins critical for preserving the integrity of the intestinal barrier. Both in vitro and in vivo tests in a DSS-induced colitis mouse model revealed that this system effectively restores damaged tissues by reducing oxidative stress and inflammation, indicating significant potential for clinical application in the management of colitis and similar inflammatory diseases.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"319 ","pages":"Article 123231"},"PeriodicalIF":12.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Overcoming immunotherapy resistance in colorectal cancer through nano-selenium probiotic complexes and IL-32 modulation
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-03-01 DOI: 10.1016/j.biomaterials.2025.123233
Shiquan Li, Tao Liu, Chenyao Li, Zhiyuan Zhang, Jiantao Zhang, Di Sun
{"title":"Overcoming immunotherapy resistance in colorectal cancer through nano-selenium probiotic complexes and IL-32 modulation","authors":"Shiquan Li,&nbsp;Tao Liu,&nbsp;Chenyao Li,&nbsp;Zhiyuan Zhang,&nbsp;Jiantao Zhang,&nbsp;Di Sun","doi":"10.1016/j.biomaterials.2025.123233","DOIUrl":"10.1016/j.biomaterials.2025.123233","url":null,"abstract":"<div><h3>Background and objective</h3><div>Colorectal cancer (CRC) is a major global health burden, with immunotherapy often limited by immune tolerance and resistance. This study introduces an innovative approach using Selenium Nanoparticles-Loaded Extracellular Vesicles combined with Interleukin-32 and Engineered Probiotic <em>Escherichia coli</em> Nissle 1917 (SeNVs@NE-IL32-EcN) to enhance CD8<sup>+</sup> T cell-mediated immune responses and overcome immunotherapy resistance.</div></div><div><h3>Methods</h3><div>Single-cell RNA sequencing (scRNA-seq) and transcriptomic analyses were performed to identify key immune cells and regulators involved in CRC immunotherapy resistance, focusing on CD8<sup>+</sup> T cells and the regulatory factor IL32. A humanized xenograft mouse model was used to evaluate the impact of IL32 and SeNVs@NE-IL32-EcN on tumor growth and immune responses. The SeNVs@NE-IL32-EcN complex was synthesized through a reverse micelle method and functionalized using extracellular vesicles. Its morphology, size, antioxidant activity, and safety were characterized using electron microscopy, dynamic light scattering (DLS), and <em>in vitro</em> co-culture assays.</div></div><div><h3>Results</h3><div>Single-cell analyses revealed a significant reduction in CD8<sup>+</sup> T cell infiltration in immunotherapy-resistant CRC patients. IL32 was identified as a key regulator enhancing CD8<sup>+</sup> T cell cytotoxic activity through granzyme B and IFN-γ secretion. Treatment with SeNVs@NE-IL32-EcN significantly improved the proliferation and activity of CD8<sup>+</sup> T cells and reduced tumor progression in humanized mouse models. <em>In vitro</em> and <em>in vivo</em> results demonstrated the complex's biocompatibility, antioxidant properties, and ability to enhance CRC immunotherapy while mitigating immune tolerance.</div></div><div><h3>Conclusion</h3><div>SeNVs@NE-IL32-EcN offers a novel nano-biomaterial strategy that integrates nanotechnology and probiotic therapy to enhance CD8<sup>+</sup> T cell-mediated immunity and overcome CRC immunotherapy resistance. This study lays the foundation for future therapeutic applications in cancer treatment by advancing immune-modulating biomaterials.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"320 ","pages":"Article 123233"},"PeriodicalIF":12.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Acidity-unlocked glucose oxidase as drug vector to boost intratumor copper homeostatic imbalance-enhanced cuproptosis for metastasis inhibition and anti-tumor immunity
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-02-28 DOI: 10.1016/j.biomaterials.2025.123207
Junrong Wang, Yulin Xie, Guoqing Zhu, Yanrong Qian, Qianqian Sun, Haoze Li, Chunxia Li
{"title":"Acidity-unlocked glucose oxidase as drug vector to boost intratumor copper homeostatic imbalance-enhanced cuproptosis for metastasis inhibition and anti-tumor immunity","authors":"Junrong Wang,&nbsp;Yulin Xie,&nbsp;Guoqing Zhu,&nbsp;Yanrong Qian,&nbsp;Qianqian Sun,&nbsp;Haoze Li,&nbsp;Chunxia Li","doi":"10.1016/j.biomaterials.2025.123207","DOIUrl":"10.1016/j.biomaterials.2025.123207","url":null,"abstract":"<div><div>As one of the key tools of biocatalysis, natural enzymes have received extensive attention due to their unique activity. However, the non-selective catalysis and early leakage induced by delivery dependency of natural enzymes can cause side effects on normal tissues. Moreover, although cuproptosis is an emerging tumor-inhibiting programmed cell death, the occurrence of cuproptosis leads to high expression of Cu-dependent lysyl oxidase-like 2 (LOXL2), which promotes tumor metastasis. Herein, in order to intelligently regulate the “OFF-to-ON” catalytic activity of glucose oxidase (a natural enzyme called GOx) and simultaneously inhibit tumor metastasis caused by Cu imbalance, an acidity-unlocked GOx system drug carrier was constructed by co-assembling Cu ions and omeprazole (OPZ) on GOx exposing sulfhydryl and hydrophobic pockets. The GOx activity is significantly inhibited due to the coordination of Cu ions with sulfhydryl groups and the interaction of hydrophobic small molecule OPZ with hydrophobic bags, which results in specificity for tumor cells and ensures the safety of GOx in blood circulation. Meanwhile, dysregulation of intracellular Cu homeostasis that impairs the Cu-dependence of LOXL2 not only inhibits critical signaling during epithelial-mesenchymal transformation (EMT) and extracellular matrix (ECM) remodelling to prevent tumor metastasis, but also exacerbates enhanced cuproptosis induced by tumor metabolic stress, thereby reversing the immunosuppressive microenvironment. This strategy of acidity-unlocked the catalytic function of natural enzymes and LOXL2 activity inhibition provides a novel option for enhancing cuproptosis to inhibit tumor metastasis and anti-tumor immunity.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"319 ","pages":"Article 123207"},"PeriodicalIF":12.8,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
NIR-II AIEgen nanocomplex with suppressed nonradiative decay and intersystem crossing for high-contrast mesenteric vascular imaging
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-02-28 DOI: 10.1016/j.biomaterials.2025.123229
Jianlin Liu , Wenjing Liu , Guanghui Liu , Rongfeng Wang , Jing Liu , Xiaogang Zhang , Heping Shi , Xiuqing Dong , Jing Zhao , Dan Ding , Guorui Jin
{"title":"NIR-II AIEgen nanocomplex with suppressed nonradiative decay and intersystem crossing for high-contrast mesenteric vascular imaging","authors":"Jianlin Liu ,&nbsp;Wenjing Liu ,&nbsp;Guanghui Liu ,&nbsp;Rongfeng Wang ,&nbsp;Jing Liu ,&nbsp;Xiaogang Zhang ,&nbsp;Heping Shi ,&nbsp;Xiuqing Dong ,&nbsp;Jing Zhao ,&nbsp;Dan Ding ,&nbsp;Guorui Jin","doi":"10.1016/j.biomaterials.2025.123229","DOIUrl":"10.1016/j.biomaterials.2025.123229","url":null,"abstract":"<div><div>The prompt assessment of the mesenteric vasculature is crucial for the diagnosis of lethal mesenteric ischemia, underscoring the need for real-time mesenteric vascular imaging using small organic molecules that radiate fluorescence within the second near-infrared spectrum (NIR-II) due to its deep penetration and elevated signal-to-background ratio (SBR), which have been rarely reported. Unfortunately, numerous NIR-II dyes exhibit low quantum yields (QYs) when employed in practical applications, highlighting the need for QY enhancement. For this research, a NIR-II fluorescent AIEgen, termed TPETPA-TQT, was rationally designed by incorporating tetraphenylethylene (TPE)-fused triphenylamine (TPA) into the robust, high QY core of 6,7-di(thiophen-2-yl)-[1,2,5]thiadiazolo[3,4-g]quinoxaline (TQT). We further encapsulated this dye within F127 to form the TPETPA-TQT F127 nanocomplex, which exhibits a 6.5-fold enhancement in fluorescence intensity over the TPA-TQT dye encapsulated with DSPE-PEG<sub>2000</sub>, attributed to the suppression of molecular nonradiative decay and intersystem crossing. The abdominal vasculature and microvessels on the intestinal wall surface, as narrow as 0.41 mm, can real-time visualization using TPETPA-TQT F127 nanocomplex, and exhibit a 94 % improvement of SBR versus ICG. Our findings will push forward the progress of high-brightness NIR-II contrast agents for enhanced mesenteric vasculature imaging and mesenteric ischemia diagnosis.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"319 ","pages":"Article 123229"},"PeriodicalIF":12.8,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Distinct impacts of aging on the immune responses to extracellular matrix-based versus synthetic biomaterials
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-02-27 DOI: 10.1016/j.biomaterials.2025.123204
Mangesh M. Kulkarni , Branimir Popovic , Alexis L. Nolfi , Clint D. Skillen , Bryan N. Brown
{"title":"Distinct impacts of aging on the immune responses to extracellular matrix-based versus synthetic biomaterials","authors":"Mangesh M. Kulkarni ,&nbsp;Branimir Popovic ,&nbsp;Alexis L. Nolfi ,&nbsp;Clint D. Skillen ,&nbsp;Bryan N. Brown","doi":"10.1016/j.biomaterials.2025.123204","DOIUrl":"10.1016/j.biomaterials.2025.123204","url":null,"abstract":"<div><div>All implanted materials inevitably trigger an acute inflammatory response. The long-term outcome, however, is dependent on the trajectory of this response. This study investigates the effects of aging on the immune response to two commercially available biomaterials. Extracellular matrix-based urinary bladder matrix (UBM) and synthetic polypropylene mesh (PPM) were implanted in young (4 months) and aged (18 months) C57BL/6J mice. Overall, PPM led to a sustained inflammatory response regardless of the age of the mice. In contrast, UBM induced an initial inflammatory response that matured into a pro-regenerative/remodeling response with time, though aged mice exhibited a delayed resolution of inflammation. The PPM-induced response was predominantly pro-inflammatory with consistently higher M1-like macrophage phenotype, whereas the response to UBM was characterized by an anti-inflammatory M2-like phenotype, especially in young mice. RNA sequencing revealed marked age-related differences in gene transcription. At day 7 post-implantation, the young mice with UBM showed a robust upregulation of both pro- and anti-inflammatory pathways as compared to young mice implanted with PPM, however, by day 14, the gene expression profile transitioned into an anti-inflammatory profile. Intriguingly, in aged mice, the response to UBM was distinct with consistent downregulation of inflammatory genes compared to PPM, while the response to PPM in both young and aged animals was largely consistent. Upstream analysis identified cytokines as key drivers of the host response, with IL-4 and IL-13 in young mice, and TNF-α and IL-1β driving chronic inflammation in aged mice. These findings highlight the importance of host age in biomaterial outcome, and the potential of ECM-based materials to mount a favorable response even in the presence of age-related immune dysregulation.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"320 ","pages":"Article 123204"},"PeriodicalIF":12.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
An AIE-active near-infrared molecular probe for migrasome labeling
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-02-27 DOI: 10.1016/j.biomaterials.2025.123213
Jie Cui , Fei Zhang , Dong Jiang , Boqi Liu , Han Zhang , Niu Niu , Dingyuan Yan , Guangjie Song , Xue Li , Li Yu , Dong Wang , Ben Zhong Tang
{"title":"An AIE-active near-infrared molecular probe for migrasome labeling","authors":"Jie Cui ,&nbsp;Fei Zhang ,&nbsp;Dong Jiang ,&nbsp;Boqi Liu ,&nbsp;Han Zhang ,&nbsp;Niu Niu ,&nbsp;Dingyuan Yan ,&nbsp;Guangjie Song ,&nbsp;Xue Li ,&nbsp;Li Yu ,&nbsp;Dong Wang ,&nbsp;Ben Zhong Tang","doi":"10.1016/j.biomaterials.2025.123213","DOIUrl":"10.1016/j.biomaterials.2025.123213","url":null,"abstract":"<div><div>Migrasomes, newly identified organelles, play crucial roles in various physiological and pathological activities, including embryogenesis, immune responses, wound healing, and metastasis of cancer cells. Migrasome visualization is essential for the deep exploration of migrasome biology. Despite the reported labeling methods based on migrasome marker proteins, a simple and convenient method for migrasome labeling is more desirable compared to the complicated transfection technique. Here, an aggregation-induced emission (AIE) based near-infrared (NIR) molecular probe named TTCPy was presented, which can bind to the phospholipid on migrasomes and light up migrasomes with a turn-on NIR fluorescence. TTCPy allows for high-performance imaging of migrasomes in both live cells and living chorioallantoic membranes via simple and rapid staining. Moreover, TTCPy achieves live-cell super-resolution imaging of migrasomes, affording remarkedly improved spatial resolution and signal-to-background ratio. This work offers a simple yet powerful tool for migrasome visualization and will contribute to the booming hotspot of migrasome biology.</div></div>","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"319 ","pages":"Article 123213"},"PeriodicalIF":12.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Corrigendum to ‘A sandwiched microarray platform for benchtop cell-based high throughput screening’ [Biomaterials Volume 32 Issue 3 (2011) 12500]
IF 12.8 1区 医学
Biomaterials Pub Date : 2025-02-27 DOI: 10.1016/j.biomaterials.2025.123173
Jinhui Wu , Ian Wheeldon , Yuqi Guo , Tingli Lu , Yanan Du , Ben Wang , Jiankang He , Yiqiao Hu , Ali Khademhosseini
{"title":"Corrigendum to ‘A sandwiched microarray platform for benchtop cell-based high throughput screening’ [Biomaterials Volume 32 Issue 3 (2011) 12500]","authors":"Jinhui Wu ,&nbsp;Ian Wheeldon ,&nbsp;Yuqi Guo ,&nbsp;Tingli Lu ,&nbsp;Yanan Du ,&nbsp;Ben Wang ,&nbsp;Jiankang He ,&nbsp;Yiqiao Hu ,&nbsp;Ali Khademhosseini","doi":"10.1016/j.biomaterials.2025.123173","DOIUrl":"10.1016/j.biomaterials.2025.123173","url":null,"abstract":"","PeriodicalId":254,"journal":{"name":"Biomaterials","volume":"319 ","pages":"Article 123173"},"PeriodicalIF":12.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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