Cold exposure therapy combined with bionic type I aggregation-induced emission photosensitizer for enhanced immunotherapy of breast cancer DOI Creative Commons
Zhongxian Chen, Zeming Liu,

Yingguang Zhou

et al.

Materials Today Bio, Journal Year: 2024, Volume and Issue: 28, P. 101217 - 101217

Published: Aug. 24, 2024

Cold exposure therapy (CE), as an inexpensive method, has shown great potential in cancer therapy. Exploring the combined anti-tumor mechanism of CE and traditional therapies (such photodynamic (PDT)) is exciting promising. Here, a bionic aggregation-induced emission photosensitizer system (named THL) designed for to enhance immunotherapy. THL inherits homologous targeting ability tumor derived exosomes, promoting enrichment at site. Under external illumination, generates hydroxyl radicals superoxide anions through type I PDT. In addition, mice are pretreated with cold exposure, which promotes mediated PDT reactive oxygen species (ROS) generation by reducing production ATP GSH tissue. This combination increases ROS within tumor, inhibits growth distant tumors, recurrent rechallenged tumors number cytotoxic CD8+T cells memory T cells. Compared alone, shows greater advantages The strategy provides new ideas

Language: Английский

Near‐infrared laser‐activated aggregation‐induced emission nanoparticles boost tumor carbonyl stress and immunotherapy of breast cancer DOI Creative Commons
Pan You,

Meng Suo,

Qinqin Huang

et al.

Aggregate, Journal Year: 2023, Volume and Issue: 5(2)

Published: Oct. 3, 2023

Abstract The induction of tumor carbonyl stress is reported to efficiently revert immune suppression in the microenvironment and enhance cancer immunotherapy. However, low oxygen concentration due inherent hypoxia limits its catalytic effect. Herein, an injectable thermosensitive hydrogel system (named APH) developed for co‐loading near‐infrared (NIR) aggregation‐induced emission (AIE) nanoparticles plasma amine oxidase (PAO) boosting enhancing antitumor immunity. Upon 808 nm NIR laser irradiation, AIE trigger a mild‐temperature (around 45°C) photothermal effect site, which significantly relieves promotes released PAO inhibit growth Myeloid‐derived suppressor cells. Remarkably, synergistic therapeutic APH verified through significant inhibitory on distant tumor, enhanced memory, effective postoperative recurrence, rechallenge, metastasis. Overall, combined AIE‐mediated therapy by upon irradiation can activate immunotherapy, making it promising treatment approach treatment.

Language: Английский

Citations

25

Recent advances in mitochondria‐targeting theranostic agents DOI Creative Commons
Kun Qian, Gao Shu,

Zhaoning Jiang

et al.

Exploration, Journal Year: 2024, Volume and Issue: 4(4)

Published: March 5, 2024

Abstract For its vital role in maintaining cellular activity and survival, mitochondrion is highly involved various diseases, several strategies to target mitochondria have been developed for specific imaging treatment. Among these approaches, theranostic may realize both diagnosis therapy with one integrated material, benefiting the simplification of treatment process candidate drug evaluation. A variety mitochondria‐targeting agents designed based on differential structure composition mitochondria, which enable more precise localization within at disease sites, facilitating unveiling pathological information while concurrently performing therapeutic interventions. Here, progress materials reported recent years along background briefly summarized, determining deliver updated status design ideas this field readers.

Language: Английский

Citations

14

Biomimetic Nano‐Cancer Stem Cell Scavenger for Inhibition of Breast Cancer Recurrence and Metastasis after FLASH‐Radiotherapy DOI

Meng Suo,

Hanchen Shen, Meng Lyu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 17, 2024

Abstract Compared to conventional radiotherapy (RT), FLASH‐RT delivers ultra‐high dose radiation, significantly reducing damage normal tissue while guaranteeing the effect of cancer treatment. However, recurrence and metastasis frequently occur after all RT due existence intractable stem cells (CSCs). To address this, a biomimetic nanoplatform (named TAFL) tumor‐derived exosome fusion liposomes is designed by co‐loading aggregation‐induced emission photothermal agents, TPE‐BBT, anti‐cancer drugs, aspirin, aiming clear CSCs for inhibiting therapy . Aspirin released in TAFL system triggered laser irradiation can induce apoptosis DNA 4T1 CSCs, comprehensively downregulate their stemness phenotype, inhibit sphericity. Furthermore, TPE‐BBT mediated mild‐photothermal alleviate hypoxic tumor microenvironment, repair which further amplifies aspirin against therefore reduces effective making more biologically safe. In vivo experimental results demonstrated that decreased population treatment inhibited therapy. summary, this provides new idea future clinical application

Language: Английский

Citations

13

Unrestricted molecular motions enable mild photothermy for recurrence-resistant FLASH antitumor radiotherapy DOI Creative Commons
Hanchen Shen, Hongbin Wang,

Jianlan Mo

et al.

Bioactive Materials, Journal Year: 2024, Volume and Issue: 37, P. 299 - 312

Published: April 23, 2024

Ultrahigh dose-rate (FLASH) radiotherapy is an emerging technology with excellent therapeutic effects and low biological toxicity. However, tumor recurrence largely impede the effectiveness of FLASH therapy. Overcoming crucial for practical applications. Here, we prepared agarose-based thermosensitive hydrogel containing a mild photothermal agent (TPE-BBT) glutaminase inhibitor (CB-839). Within nanoparticles, TPE-BBT exhibits aggregation-induced emission peaked at 900 nm, while unrestricted molecular motions endow photothermy generation ability. The balanced effect photoluminescence are ideal phototheranostics. Upon 660-nm laser irradiation, temperature-rising softens hydrolyzes to release CB-839 into site concurrent therapy chemotherapy, jointly inhibiting homologous recombination repair DNA. enhanced efficiently kills tissue without obvious systematic This work deciphers in bright organic fluorophores as source photothermy, provides novel recurrence-resistant adverse side effects.

Language: Английский

Citations

12

Cold exposure therapy combined with bionic type I aggregation-induced emission photosensitizer for enhanced immunotherapy of breast cancer DOI Creative Commons
Zhongxian Chen, Zeming Liu,

Yingguang Zhou

et al.

Materials Today Bio, Journal Year: 2024, Volume and Issue: 28, P. 101217 - 101217

Published: Aug. 24, 2024

Cold exposure therapy (CE), as an inexpensive method, has shown great potential in cancer therapy. Exploring the combined anti-tumor mechanism of CE and traditional therapies (such photodynamic (PDT)) is exciting promising. Here, a bionic aggregation-induced emission photosensitizer system (named THL) designed for to enhance immunotherapy. THL inherits homologous targeting ability tumor derived exosomes, promoting enrichment at site. Under external illumination, generates hydroxyl radicals superoxide anions through type I PDT. In addition, mice are pretreated with cold exposure, which promotes mediated PDT reactive oxygen species (ROS) generation by reducing production ATP GSH tissue. This combination increases ROS within tumor, inhibits growth distant tumors, recurrent rechallenged tumors number cytotoxic CD8+T cells memory T cells. Compared alone, shows greater advantages The strategy provides new ideas

Language: Английский

Citations

12