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Li LG, Hu J, Han N, Chen NN, Yu TT, Ren T, Xu HZ, Peng XC, Li XY, Ma TQ, Chen H, Zhang L, Chen X, Wang MF, Li TF. Dihydroartemisinin-driven TOM70 inhibition leads to mitochondrial destabilization to induce pyroptosis against lung cancer. Phytother Res 2024; 38:3856-3876. [PMID: 38761036 DOI: 10.1002/ptr.8242] [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: 01/15/2024] [Revised: 04/26/2024] [Accepted: 05/06/2024] [Indexed: 05/20/2024]
Abstract
Enhancement of malignant cell immunogenicity to relieve immunosuppression of lung cancer microenvironment is essential in lung cancer treatment. In previous study, we have demonstrated that dihydroartemisinin (DHA), a kind of phytopharmaceutical, is effective in inhibiting lung cancer cells and boosting their immunogenicity, while the initial target of DHA's intracellular action is poorly understood. The present in-depth analysis aims to reveal the influence of DHA on the highly expressed TOM70 in the mitochondrial membrane of lung cancer. The affinity of DHA and TOM70 was analyzed by microscale thermophoresis (MST), pronase stability, and thermal stability. The functions and underlying mechanism were investigated using western blots, qRT-PCR, flow cytometry, and rescue experiments. TOM70 inhibition resulted in mtDNA damage and translocation to the cytoplasm from mitochondria due to the disruption of mitochondrial homeostasis. Further ex and in vivo findings also showed that the cGAS/STING/NLRP3 signaling pathway was activated by mtDNA and thereby malignant cells underwent pyroptosis, leading to enhanced immunogenicity of lung cancer cells in the presence of DHA. Nevertheless, DHA-induced mtDNA translocation and cGAS/STING/NLRP3 mobilization were synchronously attenuated when TOM70 was replenished. Finally, DHA was demonstrated to possess potent anti-lung cancer efficacy in vitro and in vivo. Taken together, these data confirm that TOM70 is an important target for DHA to disturb mitochondria homeostasis, which further activates STING and arouses pyroptosis to strengthen immunogenicity against lung cancer thereupon. The present study provides vital clues for phytomedicine-mediated anti-tumor therapy.
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Affiliation(s)
- Liu-Gen Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
- Department of Pulmonary and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Jun Hu
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Ning Han
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Nan-Nan Chen
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Ting-Ting Yu
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
- Department of Pathology, Renmin Hospital of Shiyan, Hubei University of Medicine, Shiyan, Hubei, China
| | - Tao Ren
- Department of Pulmonary and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Hua-Zhen Xu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xing-Chun Peng
- Department of Pathology, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), Shenzhen, Guangzhou, China
| | - Xian-Yu Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Tian-Qi Ma
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Hao Chen
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Lei Zhang
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Xiao Chen
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Mei-Fang Wang
- Department of Pulmonary and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Tong-Fei Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation Research, Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
- Department of Pulmonary and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
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Li LG, Peng XC, Yang ZY, Han N, Gou CL, Shi J, Yu LL, Chen NN, Yu TT, Li TF, Li XY, Hu J. Dihydroartemisinin-driven selective anti-lung cancer proliferation by binding to EGFR and inhibition of NRAS signaling pathway-induced DNA damage. Sci Rep 2024; 14:11704. [PMID: 38778121 PMCID: PMC11111767 DOI: 10.1038/s41598-024-62126-8] [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: 11/23/2023] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Chemotherapeutic agents can inhibit the proliferation of malignant cells due to their cytotoxicity, which is limited by collateral damage. Dihydroartemisinin (DHA), has a selective anti-cancer effect, whose target and mechanism remain uncovered. The present work aims to examine the selective inhibitory effect of DHA as well as the mechanisms involved. The findings revealed that the Lewis cell line (LLC) and A549 cell line (A549) had an extremely rapid proliferation rate compared with the 16HBE cell line (16HBE). LLC and A549 showed an increased expression of NRAS compared with 16HBE. Interestingly, DHA was found to inhibit the proliferation and facilitate the apoptosis of LLC and A549 with significant anti-cancer efficacy and down-regulation of NRAS. Results from molecular docking and cellular thermal shift assay revealed that DHA could bind to epidermal growth factor receptor (EGFR) molecules, attenuating the EGF binding and thus driving the suppressive effect. LLC and A549 also exhibited obvious DNA damage in response to DHA. Further results demonstrated that over-expression of NRAS abated DHA-induced blockage of NRAS. Moreover, not only the DNA damage was impaired, but the proliferation of lung cancer cells was also revitalized while NRAS was over-expression. Taken together, DHA could induce selective anti-lung cancer efficacy through binding to EGFR and thereby abolishing the NRAS signaling pathway, thus leading to DNA damage, which provides a novel theoretical basis for phytomedicine molecular therapy of malignant tumors.
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Grants
- YC2022027, YC2023009 Innovative Research Program for Graduates of Hubei University of Medicine
- YC2022027, YC2023009 Innovative Research Program for Graduates of Hubei University of Medicine
- 202213249001, 202210929001, S202210929004, S202210929007, S202210929010 National Training Program of Innovation and Entrepreneurship for Undergraduates
- Q20222107, B2022128 Natural Science Foundation of Hubei Provincial Department of Education
- Q20222107, B2022128 Natural Science Foundation of Hubei Provincial Department of Education
- 2021-2025, 2023XKQT2 Advantages Discipline Group (Medicine) Project in Higher Education of Hubei Province
- 2023AFB837, 2022CFB994 Natural Science Foundation of Hubei Province
- 2020QDJZR002, 2021QDJZR015, 2019QDJZR02, 2021QDJZR007, 2020QDJZR020 Cultivating Project for Young Scholar at Hubei University of Medicine
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Affiliation(s)
- Liu-Gen Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Xing-Chun Peng
- Department of Pathology, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), Shenzhen, 518118, Guangzhou Province, People's Republic of China
- Department of Pathology, Sinopharm DongFeng General Hospital, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Zi-Yi Yang
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Ning Han
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Chang-Long Gou
- Department of Ultrasound Medicine, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Jun Shi
- Shenzhen Stomatology Hospital (Pingshan) of Southern Medical University, Shenzhen, 518000, People's Republic of China
| | - Li-Li Yu
- Traditional Chinese Medicine Hospital, Dianjiang, Chongqing, 408300, People's Republic of China
| | - Nan-Nan Chen
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Ting-Ting Yu
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China
| | - Tong-Fei Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China.
| | - Xian-Yu Li
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China.
| | - Jun Hu
- Shiyan Key Laboratory of Natural Medicine Nanoformulation ResearchHubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin road No. 30, Shiyan, 442000, Hubei, People's Republic of China.
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Nie M, Zhang P, Pathak JL, Wang X, Wu Y, Yang J, Shen Y. Photodynamic therapy in periodontitis: A narrative review. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12946. [PMID: 38288767 DOI: 10.1111/phpp.12946] [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: 09/01/2023] [Revised: 12/20/2023] [Accepted: 12/25/2023] [Indexed: 02/01/2024]
Abstract
BACKGROUND Periodontitis, a chronic infectious disease, is primarily caused by a dysbiotic microbiome, leading to the destruction of tooth-supporting tissues and tooth loss. Photodynamic therapy (PDT), which combines excitation light with photosensitizers (PS) and oxygen to produce antibacterial reactive oxygen species, is emerging as a promising adjuvant treatment for periodontitis. METHODS This review focuses on studies examining the antibacterial effects of PDT against periodontal pathogens. It also explores the impact of PDT on various aspects of periodontal health, including periodontal immune cells, human gingival fibroblasts, gingival collagen, inflammatory mediators, cytokines in the periodontium, vascular oxidative stress, vascular behavior, and alveolar bone health. Clinical trials assessing the types of PSs and light sources used in PDT, as well as its effects on clinical and immune factors in gingival sulcus fluid and the bacterial composition of dental plaque, are discussed. RESULTS The findings indicate that PDT is effective in reducing periodontal pathogens and improving markers of periodontal health. It has shown positive impacts on periodontal immune response, tissue integrity, and alveolar bone preservation. Clinical trials have demonstrated improvements in periodontal health and alterations in the microbial composition of dental plaque when PDT is used alongside conventional treatments. CONCLUSIONS PDT offers a promising adjunctive treatment for periodontitis, with benefits in bacterial reduction, tissue healing, and immune modulation. This article highlights the potential of PDT in periodontal therapy and emphasizes the need for further research to refine its clinical application and efficacy.
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Affiliation(s)
- Min Nie
- Department of Periodontics, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Periodontics, State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peipei Zhang
- Department of Oral Medicine, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, China
| | - Janak Lal Pathak
- Department of Periodontics, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaoyu Wang
- Department of Periodontics, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yafei Wu
- Department of Periodontics, State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingmei Yang
- Department of Periodontics, State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuqin Shen
- Department of Periodontics, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
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Zhang Y, Guo J, Zhang L, Li Y, Sheng K, Zhang Y, Liu L, Gong W, Guo K. CircASPH Enhances Exosomal STING to Facilitate M2 Macrophage Polarization in Colorectal Cancer. Inflamm Bowel Dis 2023; 29:1941-1956. [PMID: 37624989 DOI: 10.1093/ibd/izad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Indexed: 08/27/2023]
Abstract
Exosomes are considered a mediator of communication within the tumor microenvironment (TME), which modulates cancer progression through transmitting cargos between cancer cells and other cancer-related cells in TME. Circular RNAs (circRNAs) have emerged to be regulators in colorectal cancer (CRC) progression, but most of them have not been discussed in CRC. This study aims to investigate the role of circRNA aspartate beta-hydroxylase (circASPH) in CRC progression and its correlation with exosome-mediated TME. At first, we determined that circASPH was upregulated in CRC samples and cell lines. Functionally, the circASPH deficiency suppressed the malignant processes of CRC cells and also inhibited in vivo tumor growth via enhancing antitumor immunity. Mechanically, circASPH facilitated macrophage M2 polarization by upregulating exosomal stimulator of interferon genes (STING). CircASPH interacted with insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) to stabilize IGF2BP2 protein, therefore enhancing the stability of m6A-modified STING mRNA. In turn, coculture of STING-overexpressed macrophages recovered the suppression of silenced circASPH on the malignancy of CRC cells both in vitro and in vivo. Our study demonstrated that circASPH enhances exosomal STING to facilitate M2 macrophage polarization, which further accelerates CRC progression. The findings support circASPH as a promising therapeutic target for CRC treatment.
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Affiliation(s)
- Yuting Zhang
- Department of Gastroenterology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Jiakun Guo
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Liyin Zhang
- Department of Dermatology, Wuxi's Second People Hospital Affiliated With Nanjing Medical University, 68 Zhongshan Road, Wuxi, Jiangsu 214000, China
| | - Ying Li
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230001, Anhui, China
| | - Kangliang Sheng
- School of Life Sciences, Anhui University, Hefei, 230001, Anhui, China
| | - Yawei Zhang
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Liu Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Wenbin Gong
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Kun Guo
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
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Nie C, Pan W, Wu B, Luo T, Lv J, Fan Y, Feng J, Liu C, Guo J, Li B, Bai X, Zheng L. Engineered Enzyme-Loaded Erythrocyte Vesicles Precisely Deprive Tumoral Nutrients to Induce Synergistic Near-Infrared-II Photothermal Therapy and Immune Activation. ACS NANO 2023; 17:13211-13223. [PMID: 37440429 DOI: 10.1021/acsnano.3c00345] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Starvation therapy has been considered a promising strategy in cancer treatment for altering the tumor microenvironment (TME) and causing a cascade of therapeutic effects. However, it is still highly challenging to establish a therapeutic strategy for precisely and potently depriving tumoral nutrition. In this study, a glucose oxidase (GOx) and thrombin-incorporated erythrocyte vesicle (EV) with cyclic (Arg-Gly-Asp) (cRGD) peptide modification, denoted as EV@RGT, were synthesized for precisely depriving tumoral nutrition and sequentially inducing second near-infrared region (NIR-II) photothermal therapy (PTT) and immune activation. The EV@RGT could specifically accumulate at the tumor site and release the enzymes at the acidic TME. The combination of GOx and thrombin exhausts tumoral glucose and blocks the nutrition supply at the same time, resulting in severe energy deficiency and reactive oxygen species (ROS) enrichment within tumor cells. Subsequently, the abundant clotted erythrocytes in tumor vessels present outstanding localized NIR-II PTT for cancer eradication owing to the hemoglobin. Furthermore, the abundant ROS generated by enhanced starvation therapy repolarizes resident macrophages into the antitumor M1 phenotype via a DNA damage-induced STING/NF-κB pathway, ultimately contributing to tumor elimination. Consequently, the engineered EV@RGT demonstrates powerful antitumor efficiency based on precise nutrition deprivation, sequential NIR-II PTT, and immune activation effect. This work provides an effective strategy for the antitumor application of enzyme-based reinforced starvation therapy.
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Affiliation(s)
- Chengtao Nie
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Weilun Pan
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Bodeng Wu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Tingting Luo
- Department of Laboratory Medicine, Ningbo First Hospital, Ningbo 315010, China
| | - Jie Lv
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yingjing Fan
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Junjie Feng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chunchen Liu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jingyun Guo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medicine University, Guangzhou 510515, China
| | - Bo Li
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiaochun Bai
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Zhou Q, Dutta D, Cao Y, Ge Z. Oxidation-Responsive PolyMOF Nanoparticles for Combination Photodynamic-Immunotherapy with Enhanced STING Activation. ACS NANO 2023; 17:9374-9387. [PMID: 37141569 DOI: 10.1021/acsnano.3c01333] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Stimulator of interferon genes (STING) activation by STING agonists has been recognized as one of the potent and promising immunotherapy strategies. However, the immunosuppressive tumor microenvironment always hinders the therapeutic efficacy of cancer immunotherapy. In this report, we present polymeric metal-organic framework (PMOF) nanoparticles (NPs) for the combination of photodynamic therapy (PDT) and enhanced STING activation to improve the immunotherapeutic efficacy. The PMOF NPs with poly(ethylene glycol) (PEG) shells were obtained via coordination between the block copolymer ligand PEG-b-PABDA consisting of 1,4-bezenedicarboxylic acid-bearing polyacrylamide (PABDA), meso-tetra(carboxyphenyl)porphyrin (TCPP), thioketal diacetic acid, and zirconyl chloride. Subsequently, the STING agonist SR-717 was loaded into the porous structure of PMOF to obtain SR@PMOF NPs which show excellent stability under the physiological conditions. After intravenous injection and tumor accumulation, light irradiation on the tumor sites results in efficient singlet oxygen (1O2) production from TCPP and cellular apoptosis to release fragmented DNA and tumor-associated antigens. Simultaneously, thioketal bonds can be broken by 1O2 to destroy the PMOF structure and rapidly release SR717. SR-717 and PDT synergistically enhance the antitumor immunity via combination photodynamic-immunotherapy due to reversal of the immunosuppressive tumor microenvironment and enhanced endogenous STING activation, which can suppress the growth of the primary and distant tumors efficiently. The oxidation-responsive SR@PMOF NPs represent a promising delivery system of STING agonists and efficient PDT NPs for simultaneous suppression of the primary and metastatic tumors via the rational combination of PDT and enhanced STING activation.
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Affiliation(s)
- Qinghao Zhou
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Debabrata Dutta
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Yufei Cao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Zhishen Ge
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
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Effect of Photodynamic Therapy with Chlorin e6 on Canine Tumors. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122102. [PMID: 36556469 PMCID: PMC9782963 DOI: 10.3390/life12122102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
This work aims to prepare pure Chlorin e6 (Ce6) and establish Ce6-mediated photodynamic therapy (Ce6-PDT) as a better therapy option for canine tumors as well as mouse tumor models. Five dogs suffering from various cancers were treated with Ce6-PDT from one to several times. After receiving the Ce6 (2.5 mg/kg) for 3 h, tumors were illuminated superficially or interstitially with 660 nm light. Two dogs underwent Ce6-guided fluorescence imaging by photodynamic diagnosis (PDD). Cell proliferation and apoptosis were detected by the 4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and western blot assay, respectively. Ce6-PDT efficacy was also determined using melanoma and pancreatic cancer mouse models. Two veterinary patients with mammary carcinoma and histiocytic sarcoma had their tumors significantly diminished and showed improved health after receiving Ce6-PDT. Moreover, in the cases of canine tumors, the adjunctive use of Ce6-PDD revealed cancers that were not visible with white light viewing and provided a visual contrast from surrounding tissues. Also, in vivo, Ce6-PDT remarkably reduced melanoma and pancreatic tumors in the mouse model. These findings could pave the way for a better understanding of the underlying processes of Ce6-PDT, making it an effective and safe candidate for use in human and veterinary applications to abolish various cancers.
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Li LG, Peng XC, Yu TT, Xu HZ, Han N, Yang XX, Li QR, Hu J, Liu B, Yang ZY, Xu X, Chen X, Wang MF, Li TF. Dihydroartemisinin remodels macrophage into an M1 phenotype via ferroptosis-mediated DNA damage. Front Pharmacol 2022; 13:949835. [PMID: 36034842 PMCID: PMC9403990 DOI: 10.3389/fphar.2022.949835] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/08/2022] [Indexed: 11/17/2022] Open
Abstract
Lung cancer recruits tumor-associated macrophages (TAMs) massively, whose predominantly pro-tumor M2 phenotype leads to immunosuppression. Dihydroartemisinin (DHA) has been proven to remodel TAM into an anti-tumor M1 phenotype at certain concentrations in the present study, which was hypothesized to facilitate anti-lung cancer immunotherapy. However, how DHA remodels the TAM phenotype has not yet been uncovered. Our previous work revealed that DHA could trigger ferroptosis in lung cancer cells, which may also be observed in TAM thereupon. Sequentially, in the current study, DHA was found to remodel TAM into the M1 phenotype in vitro and in vivo. Simultaneously, DHA was observed to trigger ferroptosis in TAM and cause the DNA damage response and NF-κB activation. Conversely, the DHA-induced DNA damage response and NF-κB activation in TAM were attenuated after the inhibition of ferroptosis in TAM using an inhibitor of ferroptosis. Importantly, a ferroptosis inhibitor could also abolish the DHA-induced phenotypic remodeling of TAM toward the M1 phenotype. In a nutshell, this work demonstrates that DHA-triggered ferroptosis of TAM results in DNA damage, which could activate downstream NF-κB to remodel TAM into an M1 phenotype, providing a novel strategy for anti-lung cancer immunotherapy. This study offers a novel strategy and theoretical basis for the use of traditional Chinese medicine monomers to regulate the anti-tumor immune response, as well as a new therapeutic target for TAM phenotype remodeling.
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Affiliation(s)
- Liu-Gen Li
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Xing-Chun Peng
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Ting-Ting Yu
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Hua-Zhen Xu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Ning Han
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Xiao-Xin Yang
- School Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Qi-Rui Li
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Jun Hu
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Bin Liu
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Zi-Yi Yang
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Xiang Xu
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Xiao Chen
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Mei-Fang Wang
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
- *Correspondence: Mei-Fang Wang, ; Tong-Fei Li,
| | - Tong-Fei Li
- Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
- *Correspondence: Mei-Fang Wang, ; Tong-Fei Li,
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