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Li Y, Liu J, Chen Y, Weichselbaum RR, Lin W. Nanoparticles Synergize Ferroptosis and Cuproptosis to Potentiate Cancer Immunotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310309. [PMID: 38477411 PMCID: PMC11187894 DOI: 10.1002/advs.202310309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/20/2024] [Indexed: 03/14/2024]
Abstract
The recent discovery of copper-mediated and mitochondrion-dependent cuproptosis has aroused strong interest in harnessing this novel mechanism of cell death for cancer therapy. Here the design of a core-shell nanoparticle, CuP/Er, for the co-delivery of copper (Cu) and erastin (Er) to cancer cells for synergistic cuproptosis and ferroptosis is reported. The anti-Warburg effect of Er sensitizes tumor cells to Cu-mediated cuproptosis, leading to irreparable mitochondrial damage by depleting glutathione and enhancing lipid peroxidation. CuP/Er induces strong immunogenic cell death, enhances antigen presentation, and upregulates programmed death-ligand 1 expression. Consequently, CuP/Er promotes proliferation and infiltration of T cells, and when combined with immune checkpoint blockade, effectively reinvigorates T cells to mediate the regression of murine colon adenocarcinoma and triple-negative breast cancer and prevent tumor metastasis. This study suggests a unique opportunity to synergize cuproptosis and ferroptosis with combination therapy nanoparticles to elicit strong antitumor effects and potentiate current cancer immunotherapies.
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Affiliation(s)
- Youyou Li
- Department of ChemistryThe University of ChicagoChicagoIL60637USA
| | - Jing Liu
- Department of ChemistryThe University of ChicagoChicagoIL60637USA
- Department of Radiation and Cellular Oncology and Ludwig Center for Metastasis ResearchThe University of ChicagoChicagoIL60637USA
| | - Yimei Chen
- Department of ChemistryThe University of ChicagoChicagoIL60637USA
| | - Ralph R. Weichselbaum
- Department of Radiation and Cellular Oncology and Ludwig Center for Metastasis ResearchThe University of ChicagoChicagoIL60637USA
| | - Wenbin Lin
- Department of ChemistryThe University of ChicagoChicagoIL60637USA
- Department of Radiation and Cellular Oncology and Ludwig Center for Metastasis ResearchThe University of ChicagoChicagoIL60637USA
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Cheng G, Tao S, Liu S, Wang P, Zhang C, Liu J, Hao C, Wang S, Guo D, Xu B. Glutathione-Responsive Polymersome with Continuous Glutathione Depletion for Enhanced Photodynamic Therapy and Hypoxia-Activated Chemotherapy. ACS Macro Lett 2024; 13:599-606. [PMID: 38683197 DOI: 10.1021/acsmacrolett.4c00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The high glutathione (GSH) level of the tumor microenvironment severely affects the efficacy of photodynamic therapy (PDT). The current GSH depletion strategies have difficulty meeting the dual needs of security and efficiency. In this study, we report a photosensitizer Chlorin e6 (Ce6) and hypoxia-activated prodrug tirapazamine (TPZ) coloaded cross-linked multifunctional polymersome (TPZ/Ce6@SSPS) with GSH-triggered continuous GSH depletion for enhanced photodynamic therapy and hypoxia-activated chemotherapy. At tumor sites, the disulfide bonds of TPZ/Ce6@SSPS react with GSH to realize decross-linking for on-demand drug release. Meanwhile, the generated highly reactive quinone methide (QM) can further deplete GSH. This continuous GSH depletion will amplify tumor oxidative stress, enhancing the PDT effect of Ce6. Aggravated tumor hypoxia induced by PDT activates the prodrug TPZ, resulting in an enhanced combination of PDT and hypoxia-activated chemotherapy. Both in vitro and in vivo results demonstrate the efficient GSH depletion and potent antitumor activities by TPZ/Ce6@SSPS. This work provides a strategy for the design of a continuous GSH depletion platform, which holds great promise for enhanced combination tumor therapy.
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Affiliation(s)
- Guohui Cheng
- School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Shuang Tao
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Shuang Liu
- School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Ping Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Chi Zhang
- School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Jin Liu
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Chuanchuan Hao
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Sheng Wang
- School of Life Sciences, Tianjin University, Tianjin 300072, P. R. China
| | - Dong Guo
- School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Bo Xu
- Cancer Institute, Xuzhou Medical University, Xuzhou 221004, P. R. China
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Zhou Y, Zhang W, Wang B, Wang P, Li D, Cao T, Zhang D, Han H, Bai M, Wang X, Zhao X, Lu Y. Mitochondria-targeted photodynamic therapy triggers GSDME-mediated pyroptosis and sensitizes anti-PD-1 therapy in colorectal cancer. J Immunother Cancer 2024; 12:e008054. [PMID: 38429070 PMCID: PMC10910688 DOI: 10.1136/jitc-2023-008054] [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] [Accepted: 02/11/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND The effectiveness of immune checkpoint inhibitors in colorectal cancer (CRC) is limited due to the low tumor neoantigen load and low immune infiltration in most microsatellite-stable (MSS) tumors. This study aimed to develop a mitochondria-targeted photodynamic therapy (PDT) approach to provoke host antitumor immunity of MSS-CRC and elucidate the underlying molecular mechanisms. METHODS The role and mechanism of mitochondria-targeted PDT in inhibiting CRC progression and inducing pyroptosis were evaluated both in vitro and in vivo. The immune effects of PDT sensitization on PD-1 blockade were also assessed in CT26 and 4T1 tumor-bearing mouse models. RESULTS Here, we report that PDT using IR700DX-6T, a photosensitizer targeting the mitochondrial translocation protein, may trigger an antitumor immune response initiated by pyroptosis in CRC. Mechanistically, IR700DX-6T-PDT produced reactive oxygen species on light irradiation and promoted downstream p38 phosphorylation and active caspase3 (CASP3)-mediated cleavage of gasdermin E (GSDME), subsequently inducing pyroptosis. Furthermore, IR700DX-6T-PDT enhanced the sensitivity of MSS-CRC cells to PD-1 blockade. Decitabine, a demethylation drug used to treat hematologic neoplasms, disrupted the abnormal methylation pattern of GSDME in tumor cells, enhanced the efficacy of IR700DX-6T-PDT, and elicited a potent antitumor immune response in combination with PD-1 blockade and IR700DX-6T-PDT. CONCLUSION Our work provides clear a understanding of immunogenic cell death triggered by mitochondria-targeted PDT, offering a new approach for enhancing the efficacy of PD-1 blockade in CRC.
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Affiliation(s)
- Yun Zhou
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Wenyao Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Boda Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Pei Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Danxiu Li
- Department of Gastroenterology, The 980th Hospital of the PLA Joint Logistics Support Force (Primary Bethune International Peace Hospital of PLA), Shijiazhuang, Hebei, China
| | - Tianyu Cao
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dawei Zhang
- Department of Pancreatic Hepatobiliary Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hua Han
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Mingfeng Bai
- Vanderbilt University Institute of Imaging Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiaodi Zhao
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yuanyuan Lu
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
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Liu J, Chen T, Liu X, Li Z, Zhang Y. Engineering materials for pyroptosis induction in cancer treatment. Bioact Mater 2024; 33:30-45. [PMID: 38024228 PMCID: PMC10654002 DOI: 10.1016/j.bioactmat.2023.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Cancer remains a significant global health concern, necessitating the development of innovative therapeutic strategies. This research paper aims to investigate the role of pyroptosis induction in cancer treatment. Pyroptosis, a form of programmed cell death characterized by the release of pro-inflammatory cytokines and the formation of plasma membrane pores, has gained significant attention as a potential target for cancer therapy. The objective of this study is to provide a comprehensive overview of the current understanding of pyroptosis and its role in cancer treatment. The paper discusses the concept of pyroptosis and its relationship with other forms of cell death, such as apoptosis and necroptosis. It explores the role of pyroptosis in immune activation and its potential for combination therapy. The study also reviews the use of natural, biological, chemical, and multifunctional composite materials for pyroptosis induction in cancer cells. The molecular mechanisms underlying pyroptosis induction by these materials are discussed, along with their advantages and challenges in cancer treatment. The findings of this study highlight the potential of pyroptosis induction as a novel therapeutic strategy in cancer treatment and provide insights into the different materials and mechanisms involved in pyroptosis induction.
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Affiliation(s)
- Jiayi Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Taili Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - XianLing Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Department of Oncology, Guilin Hospital of the Second Xiangya Hospital, Central South University, Guilin, China
| | - ZhiHong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yong Zhang
- Department of Biomedical Engineering, The City University of Hong Kong, Hong Kong Special Administrative Region of China
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Nisa K, Lone IA, Arif W, Singh P, Rehmen SU, Kumar R. Applications of supramolecular assemblies in drug delivery and photodynamic therapy. RSC Med Chem 2023; 14:2438-2458. [PMID: 38107171 PMCID: PMC10718592 DOI: 10.1039/d3md00396e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 09/11/2023] [Indexed: 12/19/2023] Open
Abstract
One of the world's serious health challenges is cancer. Anti-cancer agents delivered to normal cells and tissues pose several problems and challenges. In this connection, photodynamic therapy (PDT) is a minimally invasive therapeutic technique used for selectively destroying malignant cells while sparing the normal tissues. Development in photosensitisers (PSs) and light sources have to be made for PDT as a first option treatment for patients. In the pursuit of developing new attractive molecules and their formulations for PDT, researchers are working on developing such type of PSs that perform better than those being currently used. For the widespread clinical utilization of PDT, effective PSs are of particular importance. Host-guest interactions based on nanographene assemblies such as functionalized hexa-cata-hexabenzocoronenes, hexa-peri-hexabenzocoronenes and coronene have attracted increasing attention owing to less complicated synthetic steps and purification processes (gel permeation chromatography) during fabrication. Noncovalent interactions provide easy and facile approaches for building supramolecular PSs and enable them to have sensitive and controllable photoactivities, which are important for maximizing photodynamic effects and minimizing side effects. Various versatile supramolecular assemblies based on cyclodextrins, cucurbiturils, calixarenes, porphyrins and pillararenes have been designed in order to make PDT an effective therapeutic technique for curing cancer and tumours. The supramolecular assemblies of porphyrins display efficient electron transfer and fluorescence for use in bioimaging and PDT. The multifunctionalization of supramolecular assemblies is used for designing biomedically active PSs, which are helpful in PDT. It is anticipated that the development of these functionalized supramolecular assemblies will provide more fascinating advances in PDT and will dramatically expand the potential and possibilities in cancer treatments.
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Affiliation(s)
- Kharu Nisa
- Department of Chemistry, Material Chemistry Laboratory, National Institute of Technology Srinagar 190006 India
| | - Ishfaq Ahmad Lone
- Department of Chemistry, Material Chemistry Laboratory, National Institute of Technology Srinagar 190006 India
| | - Waseem Arif
- Department of Chemistry, Material Chemistry Laboratory, National Institute of Technology Srinagar 190006 India
| | - Preeti Singh
- Department of Chemistry, Faculty of Science, Swami Vivekanand Subharti University Meerut-250005 India
| | - Sajad Ur Rehmen
- Department of Chemistry, Material Chemistry Laboratory, National Institute of Technology Srinagar 190006 India
| | - Ravi Kumar
- Department of Chemistry, Material Chemistry Laboratory, National Institute of Technology Srinagar 190006 India
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Chou W, Sun T, Peng N, Wang Z, Chen D, Qiu H, Zhao H. Photodynamic Therapy-Induced Anti-Tumor Immunity: Influence Factors and Synergistic Enhancement Strategies. Pharmaceutics 2023; 15:2617. [PMID: 38004595 PMCID: PMC10675361 DOI: 10.3390/pharmaceutics15112617] [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: 10/07/2023] [Revised: 10/28/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Photodynamic therapy (PDT) is an approved therapeutic procedure that exerts cytotoxic activity towards tumor cells by activating photosensitizers (PSs) with light exposure to produce reactive oxygen species (ROS). Compared to traditional treatment strategies such as surgery, chemotherapy, and radiation therapy, PDT not only kills the primary tumors, but also effectively suppresses metastatic tumors by activating the immune response. However, the anti-tumor immune effects induced by PDT are influenced by several factors, including the localization of PSs in cells, PSs concentration, fluence rate of light, oxygen concentration, and the integrity of immune function. In this review, we systematically summarize the influence factors of anti-tumor immune effects mediated by PDT. Furthermore, an update on the combination of PDT and other immunotherapy strategies are provided. Finally, the future directions and challenges of anti-tumor immunity induced by PDT are discussed.
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Affiliation(s)
- Wenxin Chou
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China; (W.C.); (T.S.); (N.P.); (D.C.)
| | - Tianzhen Sun
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China; (W.C.); (T.S.); (N.P.); (D.C.)
| | - Nian Peng
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China; (W.C.); (T.S.); (N.P.); (D.C.)
| | - Zixuan Wang
- Department of Laser Medicine, the First Medical Center, PLA General Hospital, Beijing 100853, China;
| | - Defu Chen
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China; (W.C.); (T.S.); (N.P.); (D.C.)
| | - Haixia Qiu
- Department of Laser Medicine, the First Medical Center, PLA General Hospital, Beijing 100853, China;
| | - Hongyou Zhao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China; (W.C.); (T.S.); (N.P.); (D.C.)
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Ma C, Wang Y, Chen W, Hou T, Zhang H, Zhang H, Yao X, Xia C. Caspase-1 Regulates the Apoptosis and Pyroptosis Induced by Phthalocyanine Zinc-Mediated Photodynamic Therapy in Breast Cancer MCF-7 Cells. Molecules 2023; 28:5934. [PMID: 37630186 PMCID: PMC10458486 DOI: 10.3390/molecules28165934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Photodynamic therapy (PDT) is an innovative and perspective antineoplastic therapy. Tetra-α-(4-carboxyphenoxy) phthalocyanine zinc (TαPcZn)-mediated PDT (TαPcZn-PDT) has shown antitumor activity in some tumor cells, but the manner in which caspase-1 is involved in the regulation of apoptosis and pyroptosis in the TαPcZn-PDT-treated breast cancer MCF-7 cells is unclear. Therefore, effects of TαPcZn-PDT on cytotoxicity, cell viability, apoptosis, pyroptosis, cellular reactive oxygen species (ROS), mitochondrial membrane potential (ΔΨm), caspase-1, caspase-3, and nuclear transcription factor-κB (NFκB) in MCF-7 cells was firstly examined in the present study. The findings demonstrated that TαPcZn-PDT resulted in the increase in cytotoxicity and the percentage of apoptotic and pyroptotic cells, the reduction in cell viability and ΔΨm, the production of ROS and the activation of caspase-1, caspase-3 and NFκB in MCF-7 cells. Furthermore, the results also revealed that siRNA-targeting caspase-1 (siRNA-caspase-1) attenuated the effect of TαPcZn-PDT on apoptosis, pyroptosis and the activation of caspase-1, caspase-3 and NFκB in MCF-7 cells. Taken together, we conclude that caspase-1 regulates the apoptosis and pyroptosis induced by TαPcZn-PDT in MCF-7 cells.
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Affiliation(s)
- Chunjie Ma
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
| | - Yu Wang
- Basic Medicine Department, Qiqihar Medical University, Qiqihar 161006, China;
| | - Wei Chen
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161000, China;
| | - Ting Hou
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
| | - Honglian Zhang
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
| | - Hongguang Zhang
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
| | - Xu Yao
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
| | - Chunhui Xia
- Pharmacy Department, Qiqihar Medical University, Qiqihar 161006, China; (C.M.); (T.H.); (H.Z.); (H.Z.); (X.Y.)
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Fang Y, Tang Y, Huang B. Pyroptosis: A road to next-generation cancer immunotherapy. Semin Immunol 2023; 68:101782. [PMID: 37302166 DOI: 10.1016/j.smim.2023.101782] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/13/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
The goal of cancer immunotherapy is to clear tumor cells by activating antitumor immunity, especially by mobilizing tumor-reactive CD8+T cells. Pyroptosis, programmed lytic cell death mediated by gasdermin (GSDM), results in the release of cellular antigens, damage-associated molecular patterns (DAMPs) and cytokines. Therefore, pyroptotic tumor cell-derived tumor antigens and DAMPs not only reverse immunosuppression of the tumor microenvironment (TME) but also enhance tumor antigen presentation by dendritic cells, leading to robust antitumor immunity. Exploring nanoparticles and other approaches to spatiotemporally control tumor pyroptosis by regulating gasdermin expression and activation is promising for next-generation immunotherapy.
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Affiliation(s)
- Yiliang Fang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Yaxing Tang
- Department of Anaesthesiology, the Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, PR China
| | - Bo Huang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College, Beijing 100005, PR China.
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Li M, Kim J, Rha H, Son S, Levine MS, Xu Y, Sessler JL, Kim JS. Photon-Controlled Pyroptosis Activation (PhotoPyro): An Emerging Trigger for Antitumor Immune Response. J Am Chem Soc 2023; 145:6007-6023. [PMID: 36881923 DOI: 10.1021/jacs.3c01231] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Pyroptosis refers to the process of gasdermin-mediated lytic programmed cell death (PCD) characterized by the release of pro-inflammatory cytokines. Our knowledge of pyroptosis has expanded beyond the cellular level and now includes extracellular responses. In recent years, pyroptosis has attracted considerable attention due to its potential to induce host immunity. For instance, at the 2022 International Medicinal Chemistry of Natural Active Ligand Metal-Based Drugs (MCNALMD) conference, numerous researchers demonstrated an interest in photon-controlled pyroptosis activation ("PhotoPyro"), an emerging pyroptosis-engineered approach for activating systemic immunity via photoirradiation. Given this enthusiasm, we share in this Perspective our views on this emerging area and expound on how and why "PhotoPyro" could trigger antitumor immunity (i.e., turning so-called "cold" tumors "hot"). In doing so, we have tried to highlight cutting-edge breakthroughs in PhotoPyro while suggesting areas for future contributions. By providing insights into the current state of the art and serving as a resource for individuals interested in working in this area, it is hoped that this Perspective will set the stage for PhotoPyro to evolve into a broadly applicable cancer treatment strategy.
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Affiliation(s)
- Mingle Li
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Jungryun Kim
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Hyeonji Rha
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Subin Son
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Matthew S Levine
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yunjie Xu
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jong Seung Kim
- Department of Chemistry, Korea University, Seoul 02841, Korea
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