Dual-responsive nanoscale ultrasound contrast agent as an oxidative stress amplifier for enhanced DNA damage in BRCA-proficient ovarian cancer DOI Creative Commons

Jialu Zhang,

Xiaoxuan Wang,

Lu Guo

et al.

Materials Today Bio, Journal Year: 2025, Volume and Issue: 32, P. 101761 - 101761

Published: April 11, 2025

PARP inhibitor (PARPi)-based synthetic lethal therapies have displayed limited benefits in BRCA-proficient ovarian cancer. To potentiate the application of PARPi, an ultrasound contrast agent OLA-NDs for delivery PARPi olaparib (OLA) was established enhancing DNA damage by blocking repair. were endowed with endogenous pH- and exogenous (US)-responsiveness to target tumors, as well contrast-enhanced US imaging diagnostic therapeutic integration. could upregulate NOX4 induce oxidative stress sensitize BRCA wild-type A2780 cells through utilization ultrasound-targeted microbubble destruction (UTMD). In addition, strategy further increased ROS production interfering mitochondrial function, thereby exacerbating double-strand breaks (DSBs) inducing mitochondria-mediated apoptosis. As a consequence, combined UTMD demonstrated significant antitumor effects vitro vivo. This amplifying improved lethality promoting DSBs apoptosis reduced adverse side effects, which would provide new insight clinical

Language: Английский

Mmp-2 Responsive Glycogen-Based Nanoparticles for Codelivery of Hyaluronidase and Doxorubicin to Enhance Tumor Penetration and Chemotherapy DOI
Jie Li,

Chunhui Tao,

Jiamin Xu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0

Renal-clearable and tumor-retained nanodots overcoming metabolic reprogramming to boost mitochondrial-targeted photodynamic therapy in triple-negative breast cancer DOI Creative Commons
Defan Yao, Yanshu Wang, Xue Dong

et al.

Journal of Nanobiotechnology, Journal Year: 2025, Volume and Issue: 23(1)

Published: March 10, 2025

Targeting tumor metabolism reprogramming has demonstrated a synergistic antitumor effect in photodynamic therapy of triple-negative breast cancer (TNBC). However, such combination therapeutic regimen encountered challenges, as limited photosensitizer bioavailability and severe drug toxicity. Herein, ultrasmall metal-organic frameworks (MOFs) nanodots (MSPC) that encapsulate inhibitors mitochondria-targeted photosensitizers are designed fabricated for (PDT) TNBC. The MSPC exhibits an acidic-sensitive release, leading to glutathione depletion mitochondrial respiration suppression. Significantly, substantially reduces intracellular adenosine triphosphate (ATP) levels by simultaneously disrupting oxidative phosphorylation impeding aerobic glycolysis. Therefore, the combined with inhibitor increases stress, which improves efficacy PDT. Additionally, increased retention within tumors, facilitated aggregation-enhanced (AER) effect, extends time window long-term fluorescence/photoacoustic imaging-guided PDT MSPC-sensitized significantly suppresses growth single-dose injection repeatable In summary, these renal-clearable tumor-retained indicate feasibility overcoming resistance reactive oxygen species induced metabolic reprogramming, thus holding significant implications boosting

Language: Английский

Citations

0

Organelle-oriented nanomedicines in tumor therapy: Targeting, escaping, or collaborating? DOI

Kexin Tan,

Xiao‐Ai Zhang,

Jian‐Yuan Yang

et al.

Bioactive Materials, Journal Year: 2025, Volume and Issue: 49, P. 291 - 339

Published: March 13, 2025

Language: Английский

Citations

0

Regulation of immunogenic cell death and potential applications in cancer therapy DOI Creative Commons
Kun Fang, Shuai Yuan, Xue Zhang

et al.

Frontiers in Immunology, Journal Year: 2025, Volume and Issue: 16

Published: March 26, 2025

Immunogenic cell death (ICD), a type of regulatory death, plays an important role in activating the adaptive immune response. Activation tumor-specific response is accompanied by surface exposure calreticulin and heat-shock proteins, secretion adenosine triphosphate, release high mobility group box-1. In this review, we summarize classify latest types ICD inducers their molecular mechanisms, discuss effects potential applications inducing chemotherapy drugs, targeted oncolytic viruses clinical research. We also explore epigenetic modifiers induction ICD, clarify synergistic anti-tumor nano-pulse stimulation, radiosensitizers for radiotherapy, photosensitizers photodynamic therapy, photothermal other physical combined with radiotherapy induced-ICD, multimodal immunotherapy. addition, elucidate mechanism detail, including calcium imbalance, mitochondrial stress, interactions tumor microenvironment. Ultimately, review aims to offer deeper insight into factors mechanisms provide theoretical basis future development ICD-based

Language: Английский

Citations

0

Dual-responsive nanoscale ultrasound contrast agent as an oxidative stress amplifier for enhanced DNA damage in BRCA-proficient ovarian cancer DOI Creative Commons

Jialu Zhang,

Xiaoxuan Wang,

Lu Guo

et al.

Materials Today Bio, Journal Year: 2025, Volume and Issue: 32, P. 101761 - 101761

Published: April 11, 2025

PARP inhibitor (PARPi)-based synthetic lethal therapies have displayed limited benefits in BRCA-proficient ovarian cancer. To potentiate the application of PARPi, an ultrasound contrast agent OLA-NDs for delivery PARPi olaparib (OLA) was established enhancing DNA damage by blocking repair. were endowed with endogenous pH- and exogenous (US)-responsiveness to target tumors, as well contrast-enhanced US imaging diagnostic therapeutic integration. could upregulate NOX4 induce oxidative stress sensitize BRCA wild-type A2780 cells through utilization ultrasound-targeted microbubble destruction (UTMD). In addition, strategy further increased ROS production interfering mitochondrial function, thereby exacerbating double-strand breaks (DSBs) inducing mitochondria-mediated apoptosis. As a consequence, combined UTMD demonstrated significant antitumor effects vitro vivo. This amplifying improved lethality promoting DSBs apoptosis reduced adverse side effects, which would provide new insight clinical

Language: Английский

Citations

0