JOURNAL OF CONTROLLED RELEASE
·
2024
·
IF 10.5
Yingying Xu,Liu Yang,Chengyan Wang,Weiming Sun,Yijing Zheng,Beiwei Ou,Lixian Wu,Leilei Shi,Xi Lin,Wei Chen
Oral cancer is a disease with high morbidity and mortality worldwide and greatly impacts the quality of life, especially in patients with advanced stages. Photodynamic therapy (PDT) is one of the most effective clinical treatments for oral cancers. However, most clinically applied photosensitizers have several deficiencies, including oxygen dependence, poor aqueous solubility, and a lack of tumor-targeting ability. Herein, the carrier-free multifunctional Sorafenib (Sor), chlorin e6 (Ce6), and Fe 3+ self-assembly co-delivery nanoparticles (Sor-Ce6 NPs) were constructed via combining a ferroptosis inducer Sor and a photosensitizer Ce6 for synergetic therapy. The as-synthesized Sor-Ce6 NPs presented excellent colloidal stability and water dispersity with good in vivo tumor-targeting ability. More significantly, the low dose of Sor-Ce6 NPs had little dark toxicity but produced significantly enhanced ROS and supplied O 2 sustainably to increase phototoxicity through ferroptosis pathway. Notably, the Sor-Ce6 NPs showed significantly higher in vitro and in vivo anti-tumor efficacy than the Sor/Ce6 mixture due to the improvement of cellular uptake and the incorporation of foreign Fe ions in the system, which also confer the T 1 magnetic resonance-guided imaging ability to the formed Sor-Ce6 NPs. Our study demonstrates a promising self-assembled strategy for overcoming hypoxia-related PDT resistance for oral cancer treatment.
研究领域:
癌症治疗
·
纳米技术
·
药学
·
生物医学工程
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FlatChem
·
2024
·
IF 5.9
Dan Li,Mengyao Zhang,Yudai Huang,Xin Hu,Junqing Hu
This research explores the efficacy of photodynamic therapy (PDT) and photothermal therapy (PTT) in combating chemotherapy-resistant diseases. This study focuses on enhancing tumor treatment effectiveness by leveraging the synergetic effects of combining PDT and PTT through the development of Fe-nitrogen-carbon (FeNC) nanoparticles with superior photostability. These nanoparticles, functioning as photosensitizers for the combined PDT/PTT treatment, can generate both type I and type II ROS and heat upon 808 nm irradiation. Notably, the FeNC nanoparticles demonstrate an exceptional photothermal conversion efficiency (34 %), surpassing commonly used PTT photosensitizers. In vitro and in vivo experiments corroborate the efficiency of FeNC as a photosensitizer in achieving significant tumor inhibition. In conclusion, the FeNC nanoparticles present promising applicability in the synergistic PTT/PDT treatment of tumors.
研究领域:
纳米技术
·
癌症治疗
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEDICINAL CHEMISTRY
·
2024
·
IF 6.8
Xinlin Lin,Mengsi Zheng,Kai Xiong,Fa Wang,Yu Chen,Liangnian Ji,Hui Chao
Using photodynamic therapy (PDT) to trigger nonconventional cell death pathways has provided a new scheme for highly efficient and non-side effects to drug-resistant cancer therapies. Nonetheless, the unclear targets of available photosensitizers leave the manner of PDT-induced tumor cell death relatively unpredictable. Herein, we developed a novel Ru(II)-based photosensitizer, Ru-Poma. Possessing the E3 ubiquitin ligase CRBN-targeting moiety and high singlet oxygen yield of 0.96, Ru-Poma was demonstrated to specifically photodegrade endogenous CRBN, increase lipid peroxide, downregulate GPX4 and GAPDH expression, and consequently induce ferroptosis in cisplatin-resistant cancerous cells. Furthermore, with the deep penetration of two-photon excitation, Ru-Poma achieved drug-resistant circumvention in a 3D tumor cell model. Thus, we describe the first sample of the CRBN-targeting Ru(II) complex active in PDT.
研究领域:
癌症治疗
·
光化学
·
细胞生物学
·
分子生物学
·
药物化学
✓ 已验证
DOI
高影响因子
Nano Today
·
2024
·
IF 13.2
Fan Dong,Yunhang Liu,Huihua Dong,Xing Sun,Bolong Xu,Qingyuan Wu,Xican Xu,Yong Jiang,Huiyu Liu,Yuguang Wang
Using nanomaterials with photodynamic therapy (PDT) to combat bacterial infections including periodontal infections has attracted the attention of researchers because of their high efficiency, simplicity and low susceptibility to drug resistance. However, the therapeutic effectiveness is threatened by the endogenous accumulation of hydrogen peroxide and insufficient amounts of the substrate oxygen. Here, we report a microporous Zr porphyrin carboxylate metal-organic framework (MOF) PCN-222 doped with platinum nanozymes, Pt@PCN-222, to reshape the microenvironment that is not conducive to the recovery of infected tissue and further promote recovery after periodontal tissue infection. This MOFdoped with platinum nanozymes can remove excessive endogenous hydrogen peroxide and produce dissolved oxygen simultaneously. This framework can effectively alleviate anaerobic bacterial infection in periodontal tissue, including efficiently killing the bacteria and reducing the level of inflammation in tissue. This work provides a new strategy to solve the long-term clinical challenge of anaerobic bacterial infections in periodontal tissue and proposes an innovative approach to improve treatment.
研究领域:
牙科学
·
纳米技术
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生物医学工程
·
传染病学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Huayan Yang,Yanmin Zhang,Jian Song,Meng Wang,Shaoning Yu,Liang Chen,Xiaomin Li,Shouning Yang,Lin Yang
The integration of photothermal therapy (PTT) with photodynamic therapy (PDT) has great potential to revolutionize conventional therapeutic approaches for cancers. However, most of the currently developed nanoplatforms for combinatorial phototherapy require the participation of different components or activation of separate lasers. Therefore, a desirable photoactive agent with intrinsic single laser-activated combinatorial phototherapy is still urgently needed for more efficient treatment. Here, we demonstrate a high-temperature organic synthesis, ligand exchange strategy to obtain ultrasmall, water-dispersible, and stable polylysine-bismuth sulfide quantum. dots (PLL-Bi 2 S 3 QDs). In addition to its strong near-infrared (NIR) absorption, the ultrasmall size and sulfide-enriched surface of the obtained Bi 2 S 3 QDs offer abundant photoelectrons with high reducing ability, promoting the rapid generation of reactive oxygen species (ROS). Therefore, excellent photothermal conversion and fast ROS generation ability can be concurrently realized upon 808 nm NIR laser irradiation. As proof of concept, the combined photothermal/photodynamic activity in single PLL-Bi 2 S 3 QDs was demonstrated both in vitro and in vivo , confirming that the phototherapeutic efficacy is dramatically greater than that of larger Bi 2 S 3 nanorods. In addition, toxicity screening showed that PLL-Bi 2 S 3 QDs possess excellent biocompatibility. Thus, the prepared PLL-Bi 2 S 3 QDs are expected to serve as a photoactive agent for efficient cancer treatment.
研究领域:
纳米技术
·
癌症治疗
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Biomaterials Science
·
2022
·Vol. 11
·期 1
·162-169
·
IF 7.59
Ren-Jiang Kong,Xin-Yu Li,Jia-Qi Huang,Xiang Zhou,Fu-An Deng,Yan-Mei Li,Ling-Shan Liu,Shi-Ying Li,Hong Cheng
Tumor cells activate DNA repair pathways to combat the oxidative damage induced by reactive oxygen species (ROS), contributing to their resistance to photodynamic therapy (PDT). Herein, a self-delivery photodynamic sensitizer is developed to enhance oxidative damage by blocking the DNA repair pathway through poly(ADP-ribose) polymerase (PARP) inhibition. Specifically, the photodynamic sensitizer (CeOla) is constructed based on the self-assembly of the photosensitizer chlorine e6 (Ce6) and the PARP inhibitor olaparib (Ola). Of note is that carrier free CeOla has a high drug content and favorable water stability, which could be effectively internalized by tumor cells for robust PDT upon light irradiation. Moreover, CeOla could inhibit the activation of PARP, promote the upregulation of γ-H2AX and reduce the expression of Rad51, thereby blocking the DNA repair pathway to sensitize tumor cells for PDT. As a consequence, the self-delivery CeOla greatly promotes the tumor cell apoptosis and shows a high antitumor performance with low side effects. It serves as a novel platform for the development of self-delivery nanomedicine to overcome oxidative resistance in tumor treatment.
研究领域:
肿瘤学
·
药理学
·
纳米医学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Di Chuan,Huan Hou,Yuelong Wang,Min Mu,Jinglun Li,Yangmei Ren,Na Zhao,Bo Han,Haifeng Chen,Gang Guo
Due to the hypoxic state of the tumor microenvironment (TME), photodynamic therapy (PDT) suffers from insufficient ROS production. The metal-polyphenol network-mediated Fenton reaction can generate reactive oxygen species (ROS) by consuming H 2 O 2 in TME, improving the inadequate ROS generation problem of PDT. Therefore, synergistic therapy combining PDT and Fenton response-based CDT is a promising approach for cancer treatment. Herein, a metal-polyphenol nanocomposite was deposited with gallic acid grafted hyaluronic acid and Fe 3+ to contrast a Ce6 nano-delivery system ( [email protected] NPs) for melanoma synergistic therapy. [email protected] NPs could be used as a Fenton reagent to induce the ·OH production and enhance the PDT effect of Ce6 to a certain extent. After 4 h of cellular uptake, the fluorescence intensity of Ce6 in the [email protected] NPs group was higher than 3 times that in the Ce6 group. The intracellular ROS generation level of the [email protected] NPs (L) group combining CDT and PDT was higher than that of the Ce6 group and [email protected] NPs group. In vitro and in vivo anti-melanoma studies show that [email protected] NPs (L) group exhibited better anti-melanoma than other groups. Together, [email protected] NPs provide a promising synergistic treatment potential for melanoma.
研究领域:
癌症治疗
·
纳米技术
·
生物医学工程
·
药学
✓ 已验证
产品关联
DOI
高影响因子
Cancer Nanotechnology
·
2023
·Vol. 14
·期 1
·1-19
·
IF 5.7
Wu Yueyao,Wang Runtian,Shen Peiliang,Zhou Weijia,Chen Chao,Yang Kaiyong,Yang Jingjing,Song Yujun,Han Xin,Guan Xiaoxiang
Cancer treatment by inducing tumor cell immunogenic cell death (ICD) is critical for tumor therapy. However, ICD activation by single pathway is often limited in practical application due to its low efficiency. In addition, the low pH and anoxic microenvironments in solid tumors greatly limit the effective activation of ICD. Herein, hollow manganese dioxide (H-MnO2) nanomaterials were selected to load both Mitoxantrone (MTZ) and Chlorin e6 (Ce6) due to its hollow structure and ability to release drugs in the acidic environments. Thus, the synergy of photodynamic therapy (PDT), photothermal therapy (PTT) and chemotherapy can induce the process of immunogenic cell death, stimulate the maturation of dendritic cells (DCs), and activate the immune response to kill tumor cells dramatically. Efficient immunotherapeutic effects were obtained when MnO2-C/M-HA was given intravenously to 4T1 tumor-bearing BALB/c mice with 660 nm near-infrared laser irradiation. This study overcame the limitations of monotherapy and provided a multifunctional platform for tumor immunotherapy.
研究领域:
癌症治疗
·
纳米技术
·
免疫学
·
药物递送系统
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Luoyijun Xie,Li Wang,Ling Li,Chutong Liu,Lihao Guo,Yingying Liao,Shuyi Zhou,Weiwei Wu,Yanhong Duo,Leilei Shi,Miaomiao Yuan
Photosensitizers have been widely used to cause intratumoral generation of reactive oxygen species (ROS) for cancer therapy, but they are easily disturbed by the autophagy pathway, a self-protective mechanism by mitigating oxidative damage. Hereby, we reported a simple and effective strategy to construct a carrier-free nanodrug, Ce6@CQ namely, based on the self-assembly of the photosensitizer chlorin e6 (Ce6) and the autophagy inhibitor chloroquine (CQ). Specifically, Ce6@CQ avoided the unexpected toxicity caused by the regular nanocarrier and also ameliorated its stability in different conditions. Light-activated Ce6 generated cytotoxic ROS and elicited part of the immunogenic cell death (ICD). Moreover, CQ induced autophagy dysfunction, which hindered self-healing in tumor cells and enhanced photodynamic therapy (PDT) to exert a more potent killing effect and more efficient ICD. Also, Ce6@CQ could effectively accumulate in the xenograft breast tumor site in a mouse model through the enhanced permeability and retention (EPR) effect, and the growth of breast tumors was effectively inhibited by Ce6@CQ with light. Such a carrier-free nanodrug provided a new strategy to improve the efficacy of PDT via the suppression of autophagy to digest ROS-induced toxic substances.
研究领域:
肿瘤学
·
纳米技术
·
药学
·
免疫治疗
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Qian Ren,Tingting Tian,Bin Wang,Jun Pan,Yong Huang,Li Zhong,Yehong Wang,Xia Wang,Xiao Huang
Photodynamic therapy (PDT) remains underutilized as a primary cancer treatment due to the limited lethality of reactive oxygen species (ROS) and poor targeting efficiency of traditional photosensitizers. This the aim of the study is to develop a Fe₃O₄@ZnO nanoparticle photosensitizer co-loaded with anti-EGFR antibody, brusatol, and Nrf2-siRNA to improve the therapeutic effect of PDT. This system can be guided to tumors by a magnetic field and further targets cancer cells through EGFR-specific binding. Under UVA light, brusatol and Nrf2-siRNA are released, enabling combined chemo-, gene, and photodynamic therapy. With the photosensitizer treatment, ROS levels in cutaneous squamous cell carcinoma cells were elevated by 191.09 ± 10.02 % through suppression of Nrf2 and its associated antioxidant defenses, significantly enhancing cell lethality and reducing cell viability by 80.43 ± 9.37 %. In vivo studies further demonstrated a tumor suppression rate of 76.30 ± 5.12 % in nude mice, highlighting the robust anti-tumor efficacy of the photosensitizer and its potential for clinical application in targeted cancer therapy. The biocompatibility and high therapeutic efficacy of this photosensitizer highlight its promise as a safer and more effective option for treating cutaneous squamous cell carcinoma.
研究领域:
癌症治疗
·
纳米技术
·
药理学
·
分子生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Lu Zhengnan,Wang Yi,Zhang Peng,Sheng Yang,Sun Yixin,Bradley Mark,Zhang Rong
Locally induced photodynamic therapy (PDT) with internally generated light could offer opportunities for the efficient treatment of deep tissue tumors and bacteria hidden in places where external light cannot reach. To achieve this, luminol acrylamide was synthesized and used to prepare nanospheres that were loaded with a polyurethane photosensitizer and the enzyme horseradish peroxidase. With H 2 O 2 the nanoparticles were self-illuminating and showed good antibacterial abilities and also anticancer effects via a PDT mechanism indicating efficient self-luminous functionality. The self-luminating nanospheres could potentially be used in sterilization and for cancer depression.
研究领域:
纳米医学
·
光动力疗法
·
癌症研究
·
抗菌治疗
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Food & Function
·
2021
·Vol. 12
·期 14
·6334-6347
·
IF 5.396
Bei Li,Xiaodong Wang,Shasha Hong,Qi Wang,Lin Li,Omer Eltayeb,Chuan Dong,Shaomin Shuang
Herein, PPy@MnO2 nanocomposites were first harvested by anchoring MnO2 nanosheets on polypyrrole (PPy) nanoparticles via an in situ redox reaction, then polyethylene glycol (PEG) modifier and methylene blue (MB) photosensitizer were linked through electrostatic interactions to obtain PPy@MnO2-PEG-MB nanoarchitectures. PPy nanoparticles ensure photothermal therapy (PTT) ability and MnO2 nanosheets ameliorate tumor hypoxia for enhanced photodynamic therapy (PDT). Therefore, a multifunctional nanotherapeutic system was constructed for the combined PTT/PDT of tumors. For extracellular photothermal properties, the optimal temperature elevation was 52.6 °C with 54.4% photothermal conversion efficiency. The extracellular PDT ability was measured by detecting 1O2 generation; more 1O2 was produced under acidic conditions in the presence of H2O2 (a simulated tumor microenvironment). The effective cellular uptake of the nanotherapeutic system in HeLa cells was observed by confocal laser scanning microscopy (CLSM). CLSM also indicated that more 1O2 was generated by the nanotherapeutic system as compared to free MB in HeLa cells, confirming the amelioration of tumor hypoxia by MnO2 nanosheets. MTT assays demonstrated that the nanotherapeutic system possessed superior biocompatibility without laser irradiation, and the lowest cell viabilities for single PTT and PDT groups were 13.78%, 38.82% respectively, while there was only 1.29% cell viability in the combined PTT and PDT group. These results suggest that the strategy of assembling PPy with MnO2 for a multifunctional PTT and enhanced PDT nanoplatform was realized, and opens up an unimpeded approach for integrating photothermal reduction materials with MnO2 for use in synergistic PTT and PDT.
研究领域:
纳米技术
·
生物医学工程
·
癌症治疗
·
材料科学
✓ 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）