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Shah A, Dobrovolskaia MA. Detection of Nanoparticle-Mediated Total Oxidative Stress in T Cells Using CM-H 2DCFDA Dye. Methods Mol Biol 2024; 2789:137-143. [PMID: 38506999 DOI: 10.1007/978-1-0716-3786-9_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Oxidative stress is commonly observed in cells following exposure to nanoparticles. Both negative (e.g., cytotoxicity and inflammation) and beneficial (e.g., anti-inflammatory and tumor growth inhibiting) responses have been linked in the literature to oxidative stress, emphasizing the importance of developing methodologies to study this phenomenon in cells following their exposure to nanoparticles. In the protocol described herein, primary human T cells isolated from the peripheral blood of healthy donor volunteers are treated with nanoparticles and controls, and the generation of reactive oxygen species is detected by flow cytometry using CM-H2DCFDA reagent.
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Affiliation(s)
- Ankit Shah
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
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2
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Luo K, Chen L, Zhao Y, Peng G, Chen Z, Chen Q. Transcriptomics uncover the response of an aerobic denitrifying bacteria to zinc oxide nanoparticles exposure. ENVIRONMENTAL TECHNOLOGY 2023; 44:3685-3697. [PMID: 35466863 DOI: 10.1080/09593330.2022.2069517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) show adverse impacts on aerobic denitrifying bacteria, little is known about the response of these bacteria to ZnO NPs exposure at cellular level. This study assessed the multiple responses of Pseudomonas aeruginosa PCN-2 under ZnO NPs exposure. We demonstrated that ZnO NPs exposure could inhibit the intracellular metabolism and stimulate the antioxidant defence capability of PCN-2. At lower exposure concentration (5 mg/L), exogenous ROS generated and resulted in the inhibition of pyruvate metabolism and citrate cycle, which caused deficient energy for aerobic denitrification. At higher concentrations (50 mg/L), endogenous ROS additionally generated and triggered to stronger down-regulation of oxidative phosphorylation, which caused suppressed electron transfers for aerobic denitrification. Meanwhile, ZnO NPs exposure promoted EPS production and biofilm formation, and antioxidases was especially particularly stimulated at higher concentration. Our findings are significant for understanding of microbial bacterial susceptibility, tolerance and resistance under the exposure of ZnO NPs.
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Affiliation(s)
- Kongyan Luo
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
- College of Environment and Resources, Dalian Minzu University, Dalian, PR People's Republic of China
| | - Long Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Yuanyi Zhao
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Guyu Peng
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Zhaobo Chen
- College of Environment and Resources, Dalian Minzu University, Dalian, PR People's Republic of China
| | - Qian Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
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3
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Vadarevu H, Sorinolu AJ, Munir M, Vivero-Escoto JL. Autophagy Regulation Using Multimodal Chlorin e6-Loaded Polysilsesquioxane Nanoparticles to Improve Photodynamic Therapy. Pharmaceutics 2023; 15:pharmaceutics15051548. [PMID: 37242794 DOI: 10.3390/pharmaceutics15051548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Photodynamic therapy (PDT) is a promising anticancer noninvasive technique that relies on the generation of reactive oxygen species (ROS). Unfortunately, PDT still has many limitations, including the resistance developed by cancer cells to the cytotoxic effect of ROS. Autophagy, which is a stress response mechanism, has been reported as a cellular pathway that reduces cell death following PDT. Recent studies have demonstrated that PDT in combination with other therapies can eliminate anticancer resistance. However, combination therapy is usually challenged by the differences in the pharmacokinetics of the drugs. Nanomaterials are excellent delivery systems for the efficient codelivery of two or more therapeutic agents. In this work, we report on the use of polysilsesquioxane (PSilQ) nanoparticles for the codelivery of chlorin-e6 (Ce6) and an autophagy inhibitor for early- or late-stage autophagy. Our results, obtained from a reactive oxygen species (ROS) generation assay and apoptosis and autophagy flux analyses, demonstrate that the reduced autophagy flux mediated by the combination approach afforded an increase in the phototherapeutic efficacy of Ce6-PSilQ nanoparticles. We envision that the promising results in the use of multimodal Ce6-PSilQ material as a codelivery system against cancer pave the way for its future application with other clinically relevant combinations.
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Affiliation(s)
- Hemapriyadarshini Vadarevu
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Adeola Julian Sorinolu
- Civil and Environmental Engineering Department, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Mariya Munir
- Civil and Environmental Engineering Department, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Juan L Vivero-Escoto
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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4
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Zheng M, Yang Q, Lu C, Wu X, Yan W, Liu D. Nanostructured organic photosensitizer aggregates in disease phototheranostics. Drug Discov Today 2023; 28:103598. [PMID: 37116827 DOI: 10.1016/j.drudis.2023.103598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/31/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Aggregate science provides promising opportunities for the discovery of novel disease phototheranostics. Under the guidance of aggregology and the Jablonski energy level diagram, photosensitizer aggregates with tunable photophysical properties can consequently result in tailorable diagnosis and treatment modalities. This review summarizes recent advances in the formation of nanostructured organic photosensitizer aggregates, their photophysical processes (e.g., radiative emission, vibrational relaxation, and intersystem crossing), and particularly, their applications in disease phototheranostics such as fluorescence imaging and sensing, photothermal therapy, photoacoustic imaging, and photodynamic therapy. It is expected that this comprehensive summary will provide guidance for the construction of nanostructured organic photosensitizer aggregates, for establishment of aggregation-photophysical property relationships and the development of novel disease phototheranostic nanomedicines. Teaser: This article reviews the electron-delocalized π system-caused formation of nanostructured organic photosensitizer aggregates, which undergo radiative emission, vibrational relaxation, or intersystem crossing pathways to achieve fluorescence imaging and sensing, photothermal therapy, photoacoustic imaging, and photodynamic therapy.
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Affiliation(s)
- Maochao Zheng
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310022, China.
| | - Qianqian Yang
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310022, China
| | - Chao Lu
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Xiaolei Wu
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Wei Yan
- Department of Clinical Pharmacy, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Daojun Liu
- Department of Pharmacy, Shantou University Medical College, Shantou, 515041, China; Plastic Surgery Institute of Shantou University Medical College, Shantou 515041, China.
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A tumor pH-responsive autocatalytic nanoreactor as a H 2O 2 and O 2 self-supplying depot for enhanced ROS-based chemo/photodynamic therapy. Acta Biomater 2022; 154:510-522. [PMID: 36241016 DOI: 10.1016/j.actbio.2022.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/10/2022] [Accepted: 10/03/2022] [Indexed: 12/14/2022]
Abstract
Combining the internal force-driven chemodynamic therapy (CDT) and the external energy-triggered photodynamic therapy (PDT) holds great promise to achieve an advanced anticancer effect based on reactive oxygen species (ROS). However, the insufficient oxy-substrates supply in tumor microenvironment, like hydrogen peroxide (H2O2) and oxygen (O2), is the Achilles heel that greatly restricts the efficacy of this ROS-based treatment. Herein, the construction of a copper peroxide-based tumor pH-responsive autocatalytic nanoreactor (CESAR), via an albumin-mediated biomimetic mineralization strategy is described. The decoration of human serum albumin endows the nanoreactor good hydrophilicity and biocompatibility, which is highly desired for the metal-based materials. Upon exposure to acidic tumor microenvironment, CESAR presents a pH-triggered disintegration with Cu2+, H2O2 and O2 generated instantly. The generated H2O2 complements the hyperoxide deficiency and initiates a localized Fenton-like reaction with the assistance of Cu2+ for highly toxic hydroxyl radicals (•OH) production for improving CDT. The evolved O2 gas enables hypoxia relief for enhanced Ce6-mediated PDT. This H2O2/O2 self-supplying strategy significantly amplifies the tumor oxidative damage and gains an optimal treatment outcome, which offers a new paradigm for optimizing the tumor therapeutic options limited by oxide or hyperoxide deficiency, not only for CDT/PDT, but also other oxy-substrates involved strategies. STATEMENT OF SIGNIFICANCE: The shortage of oxy-substrates in the tumor microenvironment remains a great challenge for ROS-based cancer therapy. Herein, we introduce human serum albumin as a scaffold to stabilize copper peroxide nanomaterials for constant production of H2O2 and O2 to enhance chemodynamic/photodynamic therapy. The tumor pH-triggered H2O2/O2 production and Cu2+ release are confirmed, assuring the strategy of a highly precise, effective way to destroy tumor without any side effects. This work lends new and exciting insights into the engineering design of autocatalytic oxy-substrates self-supply nanoreactor for overcoming the bottlenecks, like the oxy-substrates deficiency of CDT/PDT and the poor stability of metal peroxides, to achieve highly effective chemodynamic/photodynamic therapy.
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6
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Li Y, Huang J, Yu H, Zhao Y, Xu Z, Kang Y, Xue P. Zirconia-Platinum Nanohybrids for Ultrasound-Activated Sonodynamic-Thermodynamic Bimodal Therapy by Inducing Intense Intracellular Oxidative Stress. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203080. [PMID: 35989099 DOI: 10.1002/smll.202203080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/03/2022] [Indexed: 06/15/2023]
Abstract
The therapeutic exploration of nano-zirconia semiconductor largely remains untouched in the field of fundamental science to date. Here, a robust nano-sonosensitizer of ZrO2- x @Pt is strategically formulated by in situ growth of Pt nanocrystal onto the surface of oxygen-deficient ZrO2- x . Compared to 3.09 eV of nano-ZrO2- x , the bandgap of ZrO2- x @Pt Schottky junction is narrowed down to 2.74 eV. The band bending and bandgap narrowing enables an enhanced e- /h+ separation in the presence of aPt electron sink, which facilitates a high yield of singlet oxygen (1 O2 ) and hydroxyl radicals (·OH) under ultrasound (US) irradiation. Moreover, nanozyme Pt with catalase-mimic activity can promote 1 O2 generation by relieving the hypoxic tumor microenvironment. Upon further modification of 2,2'-azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride (AIPH), US-stimulated local thermal shock can disintegrate AIPH to create cytotoxic alkyl radicals (• R). US-triggered reactive oxygen species generation and hyperthermia-induced alkyl radical production lead to severe and irreversible tumor cell death. Such combinatorial sonodynamic-thermodynamic therapy benefits the tumor eradication and metastasis inhibition at the animal level, with the aid of immunogenetic cell death and immune checkpoint blockade. Taken together, this proof-of-concept paradigm expands the medical use of nano-zirconia and provides useful insights for its therapeutic perspectives.
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Affiliation(s)
- Yongcan Li
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Jiansen Huang
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Honglian Yu
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Yinmin Zhao
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Zhigang Xu
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Yuejun Kang
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Peng Xue
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
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Xu B, Niu R, Tang Y, Wang C, Jin L, Wang Y. A Cu-based nanoplatform for near-infrared light amplified multi-mode prostate cancer specific therapy. J Mater Chem B 2022; 10:7628-7633. [PMID: 35894661 DOI: 10.1039/d2tb01109c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemodynamic therapy (CDT), as a new method for oncotherapy, can convert less reactive hydrogen peroxide (H2O2) into highly toxic hydroxyl radicals (˙OH) in the tumor microenvironment (TME) to kill tumor cells and inhibit tumor growth. However, the TME usually presents a low content of endogenous H2O2 and weak acidity, which weakens the therapeutic effect of CDT to a certain extent. Here, we developed a multifunctional nanoplatform based on Cu-doped mesoporous carbon nanospheres loaded with free radical generator 2'-azobis[2-(2-imidazolin-2-yl)propane]-dihydrochloride (AIPH) and polyacrylic acid (Cu-MNCS-AIPH@PAA). Cu-MNCS-AIPH@PAA exhibited high photothermal conversion efficiency, and could not only act as a good photothermal agent for photothermal therapy (PTT) but also trigger AIPH to produce alkyl radicals. In response to the specificity of the TME, Cu-MNCS-AIPH@PAA could generate ˙OH through a Fenton-like reaction for CDT and enhance the efficacy of CDT by a photothermal effect. The excellent anticancer efficiency by the synergistic effect of CDT, PTT and free radicals, high biocompatibility and low adverse effects of Cu-MNCS-AIPH@PAA make it an ideal nanoplatform for tumor therapy.
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Affiliation(s)
- Bo Xu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin, China.
| | - Rui Niu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences, Changchun 130022, China
| | - Ying Tang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Chunxi Wang
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin, China.
| | - Longhai Jin
- Department of Radiology, The Second Hospital of Jilin University, Changchun 130041, Jilin, China.
| | - Yinghui Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences, Changchun 130022, China
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8
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Luo K, Chen L, Du L, Zhao Y, Chen Q. Response of the aerobic denitrifying phosphorus accumulating bacteria Pseudomonas psychrophila HA-2 to low temperature and zinc oxide nanoparticles stress. BIORESOURCE TECHNOLOGY 2022; 354:127162. [PMID: 35429594 DOI: 10.1016/j.biortech.2022.127162] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Performance and molecular changes of an aerobic denitrifying phosphorus accumulating bacteria Pseudomonas psychrophila HA-2 have been investigated under different temperatures and ZnO nanoparticles (NPs) exposures. Strain HA-2 removed 95.7% of total nitrogen (TN) and 24.6% of phosphorus at 10 °C, which was attributed to the joint up-regulation of intracellular energy metabolism and ribosome. Moreover, with the increase of ZnO NPs from 0 to 100 mg/L, TN and phosphurs removal efficiencies decreased from 95.7% to 44.5% and 24.6% to 6.8% at 10 °C, respectively, whereas phosphorus removal rate increased from 10.5% to 24.5% at 20 °C. Further transcriptomics and proteomics revealed that significant down-regulation of purine and amino acid metabolisms was the main reason for the inhibitory effect at 10 °C, while the up-regulation of antioxidant pathways and functional genes expressions was responsible for the promoted phosphorus accumulation at 20 °C. This study provides a potential solution for improving biological nutrients removal processes in winter months.
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Affiliation(s)
- Kongyan Luo
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Long Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Lei Du
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Yuanyi Zhao
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Qian Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China.
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9
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Wang W, Yu Y, Jin Y, Liu X, Shang M, Zheng X, Liu T, Xie Z. Two-dimensional metal-organic frameworks: from synthesis to bioapplications. J Nanobiotechnology 2022; 20:207. [PMID: 35501794 PMCID: PMC9059454 DOI: 10.1186/s12951-022-01395-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/23/2022] [Indexed: 12/19/2022] Open
Abstract
As a typical class of crystalline porous materials, metal-organic framework possesses unique features including versatile functionality, structural and compositional tunability. After being reduced to two-dimension, ultrathin metal-organic framework layers possess more external excellent properties favoring various technological applications. In this review article, the unique structural properties of the ultrathin metal-organic framework nanosheets benefiting from the planar topography were highlighted, involving light transmittance, and electrical conductivity. Moreover, the design strategy and versatile fabrication methodology were summarized covering discussions on their applicability and accessibility, especially for porphyritic metal-organic framework nanosheet. The current achievements in the bioapplications of two-dimensional metal-organic frameworks were presented comprising biocatalysis, biosensor, and theranostic, with an emphasis on reactive oxygen species-based nanomedicine for oncology treatment. Furthermore, current challenges confronting the utilization of two-dimensional metal-organic frameworks and future opportunities in emerging research frontiers were presented.
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Affiliation(s)
- Weiqi Wang
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yuting Yu
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yilan Jin
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Xiao Liu
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Min Shang
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Xiaohua Zheng
- School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Tingting Liu
- Department of Medical Imaging, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
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10
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Wang T, Xu H. Multi-faced roles of reactive oxygen species in anti-tumor T cell immune responses and combination immunotherapy. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
T cells play a central role in anti-tumor immunity, and reactive oxygen species (ROS) lie at the crossroad on the anti-tumor T cell responses. To activate efficient T cell immunity, a moderate level of ROS is needed, however, excessive ROS would cause toxicity to the T cells, because the improper level leads to the formation and maintenance of an immunosuppressive tumor microenvironment. Up to date, strategies that modulate ROS, either increasing or decreasing, have been widely investigated. Some of them are utilized in anti-tumor therapies, showing inevitable impacts on the anti-tumor T cell immunity with both obverse and reverse sides. Herein, the impacts of ROS-increasing and ROS-decreasing treatments on the T cell responses in the tumor microenvironment are reviewed and discussed. At the same time, outcomes of combination immunotherapies are introduced to put forward inspirations to unleash the potential of immunotherapies.
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Affiliation(s)
- Tao Wang
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Haiyan Xu
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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11
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Mechanistic insight into photoactivation of small inorganic molecules from the biomedical applications perspectives. BIOMEDICAL APPLICATIONS OF INORGANIC PHOTOCHEMISTRY 2022. [DOI: 10.1016/bs.adioch.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Zha M, Yang G, Li Y, Zhang C, Li B, Li K. Recent Advances in AIEgen-Based Photodynamic Therapy and Immunotherapy. Adv Healthc Mater 2021; 10:e2101066. [PMID: 34519181 DOI: 10.1002/adhm.202101066] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/20/2021] [Indexed: 12/13/2022]
Abstract
Cancer, one of the leading causes of death, has seriously threatened public health. However, there is still a lack of effective treatments. Nowadays, photodynamic therapy (PDT), relying on photosensitizers to trigger the generation of reactive oxygen species (ROS) for killing cancer cells, has been emerging as a noninvasive anti-cancer strategy. To enhance the overall anti-cancer efficacy of PDT, various approaches including molecular design and combination with other therapeutic techniques have been proposed and implemented. Especially, photodynamic immunotherapy that can effectively evoke the body's immune response has attracted much attention. Recently, a class of photosensitizers with aggregation-induced emission (AIE) character have shown unique promises, taking advantage of their profound fluorescence and ROS-generating ability in the aggregation state. Despite the promising results demonstrated by several groups, the associated studies are few and the mechanism of such AIEgen-based photodynamic immunotherapy has not been fully understood. This review discusses the recent advances in the AIEgen-based enhanced PDT with a special focus on the AIE photosensitizers for photodynamic immunotherapy, aiming to inspire more opportunities for in-depth investigation of the working principles in this emerging anti-cancer approach.
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Affiliation(s)
- Menglei Zha
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering Southern University of Science and Technology (SUSTech) No. 1088 Xueyuan Rd. Shenzhen Guangdong 518055 P. R. China
| | - Guang Yang
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering Southern University of Science and Technology (SUSTech) No. 1088 Xueyuan Rd. Shenzhen Guangdong 518055 P. R. China
| | - Yaxi Li
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering Southern University of Science and Technology (SUSTech) No. 1088 Xueyuan Rd. Shenzhen Guangdong 518055 P. R. China
| | - Chen Zhang
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering Southern University of Science and Technology (SUSTech) No. 1088 Xueyuan Rd. Shenzhen Guangdong 518055 P. R. China
| | - Bo Li
- Department of Cardiology Shandong University Central Hospital of Zibo NO.10 South Shanghai Road Zibo 255000 China
| | - Kai Li
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering Southern University of Science and Technology (SUSTech) No. 1088 Xueyuan Rd. Shenzhen Guangdong 518055 P. R. China
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