Emerging Biomaterials Imaging Antitumor Immune Response DOI

Xianbin Ma,

Meng‐Jie Zhang,

Jingting Wang

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(42)

Published: June 21, 2022

Abstract Immunotherapy is one of the most promising clinical modalities for treatment malignant tumors and has shown excellent therapeutic outcomes in settings. However, it continues to face several challenges, including long cycles, high costs, immune‐related adverse events, low response rates. Thus, critical predict rate immunotherapy by using imaging technology preoperative intraoperative. Here, latest advances nanosystem‐based biomaterials used predicting responses via immune cells signaling molecules microenvironment are comprehensively summarized. Several methods, such as fluorescence imaging, magnetic resonance positron emission tomography ultrasound photoacoustic predictive discussed show potential nanosystems distinguishing responders from nonresponders. Nanosystem‐based aided various technologies expected enable effective prediction diagnosis cases tumors, inflammation, other public diseases.

Language: Английский

Microenvironment‐Based Diabetic Foot Ulcer Nanomedicine DOI Creative Commons

Fang Huang,

Xiangyu Lu, Yan Yang

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 10(2)

Published: Nov. 24, 2022

Diabetic foot ulcers (DFU), one of the most serious complications diabetes, are essentially chronic, nonhealing wounds caused by diabetic neuropathy, vascular disease, and bacterial infection. Given its pathogenesis, DFU microenvironment is rather complicated characterized hyperglycemia, ischemia, hypoxia, hyperinflammation, persistent However, current clinical therapies for dissatisfactory, which drives researchers to turn attention advanced nanotechnology address therapeutic bottlenecks. In last decade, a large number multifunctional nanosystems based on have been developed with positive effects in therapy, forming novel concept "DFU nanomedicine". systematic overview nanomedicine still unavailable literature. This review summarizes microenvironmental characteristics DFU, presents main progress wound healing, summaries state-of-the-art strategies DFU. Furthermore, challenges future perspectives this field discussed prospected, aiming fuel foster development nanomedicines successfully.

Language: Английский

Citations

200

Reactive Oxygen Species‐Scavenging Nanosystems in the Treatment of Diabetic Wounds DOI
Yuan Xiong, Xiangyu Chu, Tao Yu

et al.

Advanced Healthcare Materials, Journal Year: 2023, Volume and Issue: 12(25)

Published: April 13, 2023

Diabetic wounds are characterized by drug-resistant bacterial infections, biofilm formation, impaired angiogenesis and perfusion, oxidative damage to the microenvironment. Given their complex nature, diabetic remain a major challenge in clinical practice. Reactive oxygen species (ROS), which have been shown trigger hyperinflammation excessive cellular apoptosis, play pivotal role pathogenesis of wounds. ROS-scavenging nanosystems recently emerged as smart multifunctional nanomedicines with broad synergistic applicability. The documented anti-inflammatory pro-angiogenic ability treatments predestines these promising options for treatment Yet, this context, therapeutic applicability efficacy be elucidated. Herein, ROS is deciphered, properties strengths capacity summarized. In addition, current challenges such potential future directions discussed through clinical-translational lens.

Language: Английский

Citations

94

In Situ Enzyme‐Induced Self‐Assembly of Antimicrobial‐Antioxidative Peptides to Promote Wound Healing DOI
Runxin Teng, Yuying Yang, Zhuo Zhang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(23)

Published: March 8, 2023

Abstract Antimicrobial peptides (AMPs) with dual intrinsic antibacterial and antioxidative functions have emerged as promising choice to cure infected wound. However, the most widely applied approach endow AMPs function is combine moieties, which may affect spatial structure physiological stability of AMPs. Herein, a new type inherent desired stability, activity, reactive oxygen species (ROS) scavenging developed effectively heal This formulation in situ formed at wound site by tyrosinase‐triggered oxidation self‐assembly lyophilized antimicrobial peptide Trp‐Arg‐Trp‐Arg‐Trp‐Tyr, providing enhanced fourfold sevenfold increasement efficiency against E. coli S. aureus compared monomers. The first oxidized then assembled into nanoparticles. melanin‐like has been demonstrated efficient antioxidant properties, experimental data show that nanoparticles scavenge superoxide radicals, hydroxyl H 2 O . In vivo experiments confirmed wounds obviously reduce ROS. Overall, research provides formulating treat high healing efficiency.

Language: Английский

Citations

56

Activatable Probes for Ratiometric Imaging of Endogenous Biomarkers In Vivo DOI
Qinrui Fu, Xiao Yang, Mengzhen Wang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(5), P. 3916 - 3968

Published: Jan. 23, 2024

Dynamic variations in the concentration and abnormal distribution of endogenous biomarkers are strongly associated with multiple physiological pathological states. Therefore, it is crucial to design imaging systems capable real-time detection dynamic changes for accurate diagnosis effective treatment diseases. Recently, ratiometric has emerged as a widely used technique sensing due its advantage circumventing limitations inherent conventional intensity-dependent signal readout methods while also providing built-in self-calibration correction. Here, recent progress probes their applications outlined. Ratiometric classified according mechanisms, photoacoustic imaging, optical including photoluminescence self-luminescence magnetic resonance dual-modal discussed. The such pH, reactive oxygen species (ROS), nitrogen (RNS), glutathione (GSH), gas molecules, enzymes, metal ions, hypoxia discussed detail. Additionally, this Review presents an overview challenges faced field along future research directions.

Language: Английский

Citations

32

An ROS‐Scavenging Treg‐Recruiting Hydrogel Patch for Diabetic Wound Healing DOI
Moyuan Qu,

Weizhe Xu,

Xingwu Zhou

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(26)

Published: Feb. 26, 2024

Abstract Chronic inflammation and excessive reactive oxygen species (ROS) can impair diabetic wound healing. Regulatory T cells (Tregs) have emerged as a promising target to promote healing by regulating the immune system supporting tissue repair through secretion of growth factors cytokines. However, an effective strategy for on‐demand recruitment Tregs is still lacking. Here, ROS‐scavenging Tregs‐recruiting hydrogel patch developed sequential release C─C motif chemokine 22 (CCL22) triggered ROS in bed. The prepared crosslinking gelatin with cleavable linker together CCL22 (RSG‐CCL22). RSG‐CCL22 presented desirable physical properties suitable skin regeneration purposes. In addition, scavenging feature RSG suppresses differentiation helper 17 (Th17) protects recruited from apoptosis oxidative stress, which maximizes their function accelerating closure promoting hair follicle full‐thickness defect mouse model. Therefore, proposed approach provides new therapeutic via functional ROS‐triggered delivery.

Language: Английский

Citations

29

Smart responsive Fe/Mn nanovaccine triggers liver cancer immunotherapy via pyroptosis and pyroptosis-boosted cGAS-STING activation DOI Creative Commons

Qianying Du,

Ying Luo,

Lian Xu

et al.

Journal of Nanobiotechnology, Journal Year: 2024, Volume and Issue: 22(1)

Published: March 6, 2024

Abstract Background The prognosis for hepatocellular carcinoma (HCC) remains suboptimal, characterized by high recurrence and metastasis rates. Although metalloimmunotherapy has shown potential in combating tumor proliferation, metastasis, current apoptosis-based fails to elicit sufficient immune response HCC. Results A smart responsive bimetallic nanovaccine was constructed induce immunogenic cell death (ICD) through pyroptosis enhance the efficacy of cGAS-STING pathway. composed manganese-doped mesoporous silica as a carrier, loaded with sorafenib (SOR) modified MIL-100 (Fe), where Fe 3+ , SOR, Mn 2+ were synchronized released into help microenvironment (TME). Afterward, worked synergistically SOR-induced (via both classical nonclassical signaling pathways), causing outflow abundant factors, which contributes dendritic (DC) maturation, exposure double-stranded DNA (dsDNA). Subsequently, exposed dsDNA jointly activated pathway induced release type I interferons, further led DC maturation. Moreover, -related T1 magnetic resonance imaging (MRI) used visually evaluate functionality nanovaccine. Conclusion utilization metallic nanovaccines pyroptosis-mediated activation provides promising paradigm HCC treatment.

Language: Английский

Citations

22

Microenvironment-responsive metal-phenolic network release platform with ROS scavenging, anti-pyroptosis, and ECM regeneration for intervertebral disc degeneration DOI Creative Commons
Hao Zhou, Jinpeng He, Renfeng Liu

et al.

Bioactive Materials, Journal Year: 2024, Volume and Issue: 37, P. 51 - 71

Published: March 15, 2024

Intervertebral disc degeneration (IVDD) can be caused by aging, injury, and genetic factors. The pathological changes associated with IVDD include the excessive accumulation of reactive oxygen species (ROS), cellular pyroptosis, extracellular matrix (ECM) degradation. There are currently no approved specific molecular therapies for IVDD. In this study, we developed a multifunctional microenvironment-responsive metal-phenolic network release platform, termed TMP@Alg-PBA/PVA, which could treat (IL-1β)-induced (TA-Mn-PVP, TMP) released from platform targeted mitochondria to efficiently scavenge ROS reduce ECM Pyroptosis was suppressed through inhibition IL-17/ERK signaling pathway. These findings demonstrate versatility platform. And in rat model IVDD, TMP@Alg-PBA/PVA exhibited excellent therapeutic effects reducing progression disease. therefore, presents clinical potential treatment

Language: Английский

Citations

21

Recent advances of hydrogels as smart dressings for diabetic wounds DOI
Xu Wang, Yuhan Yang, Weifeng Zhao

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: 12(5), P. 1126 - 1148

Published: Jan. 1, 2024

This review highlights the latest progress of smart hydrogel dressings for bandaging, monitoring and therapy diabetic wounds.

Language: Английский

Citations

19

Promoting Re-epithelialization in an oxidative diabetic wound microenvironment using self-assembly of a ROS-responsive polymer and P311 peptide micelles DOI
Rong Shi, Haisheng Li, Xin Jin

et al.

Acta Biomaterialia, Journal Year: 2022, Volume and Issue: 152, P. 425 - 439

Published: Sept. 13, 2022

Language: Английский

Citations

48

A polydopamine coated nanoscale FeS theranostic platform for the elimination of drug-resistant bacteria via photothermal-enhanced Fenton reaction DOI
Fupeng Li, Kai Huang,

Haishuang Chang

et al.

Acta Biomaterialia, Journal Year: 2022, Volume and Issue: 150, P. 380 - 390

Published: July 31, 2022

Language: Английский

Citations

42