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  1. Article: Nanomedicines targeting activation of STING to reshape tumor immune microenvironment and enhance immunotherapeutic efficacy.

    Chen, Shanshan / Peng, Anghui / Chen, Muhe / Zhan, Meixiao

    Frontiers in oncology

    2023  Volume 12, Page(s) 1093240

    Abstract: Immunotherapy has greatly enhanced the effectiveness of cancer treatments, but the efficacy of many current immunotherapies is still limited by the tumor-suppressive immune microenvironment. Multiple studies have shown that activating the stimulation of ... ...

    Abstract Immunotherapy has greatly enhanced the effectiveness of cancer treatments, but the efficacy of many current immunotherapies is still limited by the tumor-suppressive immune microenvironment. Multiple studies have shown that activating the stimulation of IFN genes (STING) pathway and inducing innate immunity can significantly impact the tumor immune microenvironment and improve antitumor therapy. While natural or synthetic STING agonists have been identified or developed for preclinical and clinical use, small molecule agonists have limited utility due to degradation and lack of targeting. As such, the delivery and release of STING agonists into tumor tissue is a major challenge that must be addressed in order to further advance the use of STING agonists. To address this challenge, various nanomedicines have been developed. In this paper, we concisely review the antitumor immunotherapeutic mechanisms of STING agonists, highlighting the latest developments in STING agonists and the current progress of nanomedicines for activating STING. We classify the different nanomedicines according to the STING agonists they utilize in order to facilitate understanding of recent advances in this field. Finally, we also discuss the prospects and challenges of this field.
    Language English
    Publishing date 2023-01-18
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2022.1093240
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Cancer diagnosis and treatment platform based on manganese-based nanomaterials.

    Fei, Jia / Liu, Yanyan / Zeng, Ya / Yang, Mingqi / Chen, Shanshan / Duan, Xiaobing / Lu, Ligong / Chen, Muhe

    Frontiers in bioengineering and biotechnology

    2024  Volume 12, Page(s) 1363569

    Abstract: Cancer is a leading cause of death worldwide, and the development of new diagnostic and treatment methods is crucial. Manganese-based nanomaterials (MnNMs) have emerged as a focal point in the field of cancer diagnosis and treatment due to their ... ...

    Abstract Cancer is a leading cause of death worldwide, and the development of new diagnostic and treatment methods is crucial. Manganese-based nanomaterials (MnNMs) have emerged as a focal point in the field of cancer diagnosis and treatment due to their multifunctional properties. These nanomaterials have been extensively explored as contrast agents for various imaging technologies such as magnetic resonance imaging (MRI), photoacoustic imaging (PAI), and near-infrared fluorescence imaging (NIR-FL). The use of these nanomaterials has significantly enhanced the contrast for precise tumor detection and localization. Moreover, MnNMs have shown responsiveness to the tumor microenvironment (TME), enabling innovative approaches to cancer treatment. This review provides an overview of the latest developments of MnNMs and their potential applications in tumor diagnosis and therapy. Finally, potential challenges and prospects of MnNMs in clinical applications are discussed. We believe that this review would serve as a valuable resource for guiding further research on the application of manganese nanomaterials in cancer diagnosis and treatment, addressing the current limitations, and proposing future research directions.
    Language English
    Publishing date 2024-03-01
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2719493-0
    ISSN 2296-4185
    ISSN 2296-4185
    DOI 10.3389/fbioe.2024.1363569
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Anticancer Cyclometalated Iridium(III) Complexes with Planar Ligands: Mitochondrial DNA Damage and Metabolism Disturbance.

    Cao, Jian-Jun / Zheng, Yue / Wu, Xiao-Wen / Tan, Cai-Ping / Chen, Mu-He / Wu, Na / Ji, Liang-Nian / Mao, Zong-Wan

    Journal of medicinal chemistry

    2019  Volume 62, Issue 7, Page(s) 3311–3322

    Abstract: Emerging studies have shown that mitochondrial DNA (mtDNA) is a potential target for cancer therapy. Herein, six cyclometalated Ir(III) complexes Ir1-Ir6 containing a series of extended planar diimine ligands have been designed and assessed for their ... ...

    Abstract Emerging studies have shown that mitochondrial DNA (mtDNA) is a potential target for cancer therapy. Herein, six cyclometalated Ir(III) complexes Ir1-Ir6 containing a series of extended planar diimine ligands have been designed and assessed for their efficacy as anticancer agents. Ir1-Ir6 show much higher cytotoxicity than cisplatin and they can effectively localize to mitochondria. Among them, complexes Ir3 and Ir4 with dipyrido[3,2- a:2',3'- c]phenazine (dppz) ligands can bind to DNA tightly in vitro, intercalate to mtDNA in situ, and induce mtDNA damage. Ir3- and Ir4-impaired mitochondria exhibit decline of mitochondrial membrane potential, disability of adenosine triphosphate generation, disruption of mitochondrial energetic and metabolic status, which subsequently cause protective mitophagy, G
    MeSH term(s) A549 Cells ; Animals ; Antineoplastic Agents/pharmacology ; Coordination Complexes/chemistry ; Coordination Complexes/pharmacology ; Crystallography, X-Ray ; DNA Damage ; DNA, Mitochondrial/drug effects ; DNA, Mitochondrial/metabolism ; Energy Metabolism/drug effects ; HeLa Cells ; Humans ; Iridium/chemistry ; Ligands ; Mice ; Mitochondria/drug effects ; Mitochondria/metabolism ; Reactive Oxygen Species/metabolism ; Xenograft Model Antitumor Assays
    Chemical Substances Antineoplastic Agents ; Coordination Complexes ; DNA, Mitochondrial ; Ligands ; Reactive Oxygen Species ; Iridium (44448S9773)
    Language English
    Publishing date 2019-03-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/acs.jmedchem.8b01704
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Light-Up Mitophagy in Live Cells with Dual-Functional Theranostic Phosphorescent Iridium(III) Complexes

    Chen, Mu-He / Cao Jian-Jun / Ji Liang-Nian / Mao Zong-Wan / Tan Cai-Ping / Wang Fang-Xin

    ACS Applied Materials & Interfaces. 2017 Apr. 19, v. 9, no. 15

    2017  

    Abstract: Phosphorescent Ir(III) complexes are expected to be new multifunctional theranostic platforms that enable the integration of imaging capabilities and anticancer properties. Mitophagy is an important selective autophagic process that degrades ... ...

    Abstract Phosphorescent Ir(III) complexes are expected to be new multifunctional theranostic platforms that enable the integration of imaging capabilities and anticancer properties. Mitophagy is an important selective autophagic process that degrades dysfunctional mitochondria. Until now, the regulation of mitophagy is still poorly understood. Herein, we present two phosphorescent cyclometalated iridium(III) complexes (Ir1 and Ir2) that can accumulate in mitochondria and induce mitophagy. Because of their intrinsic phosphorescence, they can specially image mitochondria and track mitochondrial morphological alterations. Mechanism studies show that Ir1 and Ir2 induce mitophagy by depolarization of mitochondrial membrane potential, depletion of cellular ATP, perturbation in mitochondrial metabolic status, and induction of oxidative stress. Moreover, no sign of apoptosis is observed in Ir1- and Ir2-treated cells under the same conditions that an obvious mitophagic response is initiated. We demonstrate that Ir1 is a promising theranostic agent that can induce mitophagy and visualize changes in mitochondrial morphology simultaneously.
    Keywords adenosine triphosphate ; antineoplastic activity ; apoptosis ; image analysis ; iridium ; membrane potential ; mitochondria ; mitochondrial membrane ; mitophagy ; oxidative stress ; phosphorescence
    Language English
    Dates of publication 2017-0419
    Size p. 13304-13314.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1944-8252
    DOI 10.1021%2Facsami.7b01735
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Tumor-targeted supramolecular nanoparticles self-assembled from a ruthenium-β-cyclodextrin complex and an adamantane-functionalized peptide.

    Xue, Shan-Shan / Tan, Cai-Ping / Chen, Mu-He / Cao, Jian-Jun / Zhang, Dong-Yang / Ye, Rui-Rong / Ji, Liang-Nian / Mao, Zong-Wan

    Chemical communications (Cambridge, England)

    2017  Volume 53, Issue 5, Page(s) 842–845

    Abstract: We report here a supramolecular strategy to assemble a cyclodextrin-functionalized anticancer Ru(ii) complex with an adamantane-appended tumor-targeting peptide into discrete and stable phosphorescent nanostructures that can induce cell death in integrin ...

    Abstract We report here a supramolecular strategy to assemble a cyclodextrin-functionalized anticancer Ru(ii) complex with an adamantane-appended tumor-targeting peptide into discrete and stable phosphorescent nanostructures that can induce cell death in integrin α
    Language English
    Publishing date 2017-01-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c6cc08296c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Light-Up Mitophagy in Live Cells with Dual-Functional Theranostic Phosphorescent Iridium(III) Complexes.

    Chen, Mu-He / Wang, Fang-Xin / Cao, Jian-Jun / Tan, Cai-Ping / Ji, Liang-Nian / Mao, Zong-Wan

    ACS applied materials & interfaces

    2017  Volume 9, Issue 15, Page(s) 13304–13314

    Abstract: Phosphorescent Ir(III) complexes are expected to be new multifunctional theranostic platforms that enable the integration of imaging capabilities and anticancer properties. Mitophagy is an important selective autophagic process that degrades ... ...

    Abstract Phosphorescent Ir(III) complexes are expected to be new multifunctional theranostic platforms that enable the integration of imaging capabilities and anticancer properties. Mitophagy is an important selective autophagic process that degrades dysfunctional mitochondria. Until now, the regulation of mitophagy is still poorly understood. Herein, we present two phosphorescent cyclometalated iridium(III) complexes (Ir1 and Ir2) that can accumulate in mitochondria and induce mitophagy. Because of their intrinsic phosphorescence, they can specially image mitochondria and track mitochondrial morphological alterations. Mechanism studies show that Ir1 and Ir2 induce mitophagy by depolarization of mitochondrial membrane potential, depletion of cellular ATP, perturbation in mitochondrial metabolic status, and induction of oxidative stress. Moreover, no sign of apoptosis is observed in Ir1- and Ir2-treated cells under the same conditions that an obvious mitophagic response is initiated. We demonstrate that Ir1 is a promising theranostic agent that can induce mitophagy and visualize changes in mitochondrial morphology simultaneously.
    Language English
    Publishing date 2017-04-19
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.7b01735
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Dual Functions of Cyclometalated Iridium(III) Complexes: Anti-Metastasis and Lysosome-Damaged Photodynamic Therapy.

    Wang, Fang-Xin / Chen, Mu-He / Lin, Yan-Nan / Zhang, Hang / Tan, Cai-Ping / Ji, Liang-Nian / Mao, Zong-Wan

    ACS applied materials & interfaces

    2017  Volume 9, Issue 49, Page(s) 42471–42481

    Abstract: Four phosphorescent cyclometalated iridium(III) complexes containing benzimidazole moiety have been designed and synthesized. These Ir(III) complexes can effectively inhibit several cancerous processes, including cell migration, invasion, colony ... ...

    Abstract Four phosphorescent cyclometalated iridium(III) complexes containing benzimidazole moiety have been designed and synthesized. These Ir(III) complexes can effectively inhibit several cancerous processes, including cell migration, invasion, colony formation, and angiogenesis. Interestingly, they show a much higher singlet oxygen quantum yield in an acidic solution than in a neutral solution. Upon irradiation at 425 nm with low energy (1.2 J cm
    MeSH term(s) Animals ; Coordination Complexes ; HeLa Cells ; Humans ; Iridium/chemistry ; Lysosomes ; Mice ; Mice, Nude ; Photochemotherapy
    Chemical Substances Coordination Complexes ; Iridium (44448S9773)
    Language English
    Publishing date 2017-11-28
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.7b10258
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Dual Functions of Cyclometalated Iridium(III) Complexes: Anti-Metastasis and Lysosome-Damaged Photodynamic Therapy

    Wang, Fang-Xin / Chen Mu-He / Lin Yan-Nan / Zhang Hang / Tan Cai-Ping / Ji Liang-Nian / Mao Zong-Wan

    ACS applied materials & interfaces. 2017 Dec. 13, v. 9, no. 49

    2017  

    Abstract: Four phosphorescent cyclometalated iridium(III) complexes containing benzimidazole moiety have been designed and synthesized. These Ir(III) complexes can effectively inhibit several cancerous processes, including cell migration, invasion, colony ... ...

    Abstract Four phosphorescent cyclometalated iridium(III) complexes containing benzimidazole moiety have been designed and synthesized. These Ir(III) complexes can effectively inhibit several cancerous processes, including cell migration, invasion, colony formation, and angiogenesis. Interestingly, they show a much higher singlet oxygen quantum yield in an acidic solution than in a neutral solution. Upon irradiation at 425 nm with low energy (1.2 J cm–²), they can induce apoptosis through lysosomal damage, evaluation of reactive oxygen species level, and activation of caspase-3/7. The highest phototoxicity index is >476, with almost no dark cytotoxicity observed for Ir4. Ir4 can also inhibit tumor growth effectively in nude mice in vivo after photodynamic therapy. An in vitro assay against 70 kinases indicates that maternal embryonic leucine zipper kinase (MELK), PIK3CA, and AMPK are the possible molecular targets. The half maximal inhibitory concentration of Ir4 toward MELK is 1.27 μM. Our study demonstrates that these Ir(III) complexes are promising anticancer agents with dual functions, including metastasis inhibition and lysosome-damaged photodynamic therapy.
    Keywords angiogenesis ; antineoplastic agents ; apoptosis ; benzimidazole ; cell movement ; cytotoxicity ; energy ; in vitro studies ; iridium ; irradiation ; leucine zipper ; materials science ; metastasis ; mice ; moieties ; phosphorescence ; phosphotransferases (kinases) ; photochemotherapy ; phototoxicity ; singlet oxygen
    Language English
    Dates of publication 2017-1213
    Size p. 42471-42481.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1944-8252
    DOI 10.1021%2Facsami.7b10258
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Tumor-targeted supramolecular nanoparticles self-assembled from a ruthenium-β-cyclodextrin complex and an adamantane-functionalized peptide

    Xue, Shan-Shan / Tan, Cai-Ping / Chen, Mu-He / Cao, Jian-Jun / Zhang, Dong-Yang / Ye, Rui-Rong / Ji, Liang-Nian / Mao, Zong-Wan

    Chemical communications. 2017 Jan. 10, v. 53, no. 5

    2017  

    Abstract: We report here a supramolecular strategy to assemble a cyclodextrin-functionalized anticancer Ru(ii) complex with an adamantane-appended tumor-targeting peptide into discrete and stable phosphorescent nanostructures that can induce cell death in integrin ...

    Abstract We report here a supramolecular strategy to assemble a cyclodextrin-functionalized anticancer Ru(ii) complex with an adamantane-appended tumor-targeting peptide into discrete and stable phosphorescent nanostructures that can induce cell death in integrin αvβ3-rich tumor cells with high selectivity. This strategy presents new opportunities for the construction of tumor-targeting metallo-anticancer therapeutics.
    Keywords cell death ; chemical compounds ; chemical reactions ; integrins ; nanoparticles ; neoplasm cells ; peptides ; phosphorescence ; therapeutics
    Language English
    Dates of publication 2017-0110
    Size p. 842-845.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c6cc08296c
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Inhibition of autophagic flux by cyclometalated iridium(iii) complexes through anion transportation.

    Chen, Mu-He / Zheng, Yue / Cai, Xiong-Jie / Zhang, Hang / Wang, Fang-Xin / Tan, Cai-Ping / Chen, Wen-Hua / Ji, Liang-Nian / Mao, Zong-Wan

    Chemical science

    2019  Volume 10, Issue 11, Page(s) 3315–3323

    Abstract: Synthetic anion transporters that can interfere with the intracellular pH homeostasis are gaining increasing attention for tumor therapy, however, the biological mechanism of anion transporters remains to be explored. In this work, two phosphorescent ... ...

    Abstract Synthetic anion transporters that can interfere with the intracellular pH homeostasis are gaining increasing attention for tumor therapy, however, the biological mechanism of anion transporters remains to be explored. In this work, two phosphorescent cyclometalated Ir(iii) complexes containing 2-phenylpyridine (ppy) as the cyclometalated ligand, and 2,2'-biimidazole (H
    Language English
    Publishing date 2019-01-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/c8sc04520h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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