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Feng C, Wang L, Zhang D, Geng L, Zhou L, Wang L, Tian G, Tang Q, Hu J, Geng B, Yan L. Tumour microenvironment-responded Fe-doped carbon dots-sensitized cubic Cu 2O for Z-scheme heterojunction-enhanced sono-chemodynamic synergistic tumor therapy. J Colloid Interface Sci 2024; 665:681-692. [PMID: 38552583 DOI: 10.1016/j.jcis.2024.03.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/12/2024] [Accepted: 03/26/2024] [Indexed: 04/17/2024]
Abstract
The efficacy of electron-hole separation in a single sonosensitizer and the complexities of the tumor microenvironment (TME) present significant challenges to the effectiveness of sonodynamic therapy (SDT). Designing efficient sonosensitizers to enhance electron-hole separation and alleviate TME resistance is crucial yet challenging. Herein, we introduce a novel Z-scheme heterojunctions (HJs) sonosensitizer using Fe-doped carbon dots (CDs) as auxiliary semiconductors to sensitize cubic Cu2O (Fe-CDs@Cu2O) for the first time. Fe-CDs@Cu2O demonstrated enhanced SDT effects due to improved electron-hole separation. Additionally, the introduction of Fe ions in CDs synergistically enhances Fenton-like reactions with Cu ions in Cu2O, resulting in enhanced chemodynamic therapy (CDT) effects. Moreover, Fe-CDs@Cu2O exhibited rapid glutathione (GSH) depletion, effectively mitigating TME resistance. With high rates of 1O2 and OH generated by Fe-CDs@Cu2O, coupled with strong GSH depletion, single drug injection and ultrasound (US) irradiation effectively eliminate tumors. This innovative heterojunction sonosensitizer offers a promising pathway for clinical anti-tumor treatment.
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Affiliation(s)
- Chuanqi Feng
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China.
| | - Lumin Wang
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Dashuai Zhang
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Longlong Geng
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Lianwen Zhou
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Ling Wang
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Guanfeng Tian
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Qi Tang
- Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, 253023 Dezhou, Shandong, PR China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, 200444 Shanghai, PR China.
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, 200444 Shanghai, PR China.
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, PR China.
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Su Y, Ye K, Hu J, Zhang Z, Wang Y, Geng B, Pan D, Shen L. Graphene Quantum Dots Eradicate Resistant and Metastatic Cancer Cells by Enhanced Interfacial Inhibition. Adv Healthc Mater 2024:e2304648. [PMID: 38597827 DOI: 10.1002/adhm.202304648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/07/2024] [Indexed: 04/11/2024]
Abstract
Drug-resistant and metastatic cancer cells such as a small population of cancer stem cells (CSCs) play a crucial role in metastasis and relapse. Conventional small-molecule chemotherapeutics, however, are unable to eradicate drug-resistant CSCs owing to limited interface inhibitory effects. Herein, it is reported that enhanced interfacial inhibition leading to eradication of drug-resistant CSCs can be dramatically induced by self-insertion of bioactive graphene quantum dots (GQDs) into DNA major groove (MAG) sites in cancer cells. Since transcription factors regulate gene expression at the MAG site, MAG-targeted GQDs exert greatly enhanced interfacial inhibition, downregulating the expression of a collection of cancer stem genes such as ALDH1, Notch1, and Bmi1. Moreover, the nanoscale interface inhibition mechanism reverses cancer multidrug resistance (MDR) by inhibiting MDR1 gene expression when GQDs are used at a nontoxic concentration (1/4 × half-maximal inhibitory concentration (IC50)) as the MDR reverser. Given their high efficacy in interfacial inhibition, CSC-mediated migration, invasion, and metastasis of cancer cells can be substantially blocked by MAG-targeted GQDs, which can also be harnessed to sensitize clinical cytotoxic agents for improved efficacy in combination chemotherapy. These findings elucidate the inhibitory effects of the enhanced nano-bio interface at the MAG site on eradicating CSCs, thus preventing cancer metastasis and recurrence.
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Affiliation(s)
- Yan Su
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Kai Ye
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhenlin Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yang Wang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
- Department of Orthopedic Surgery, Sheyang County People's Hospital, Yancheng, Jiangsu, 224300, China
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Geng B, Hu J, He X, Zhang Z, Cai J, Pan D, Shen L. Single Atom Catalysts Remodel Tumor Microenvironment for Augmented Sonodynamic Immunotherapy. Adv Mater 2024:e2313670. [PMID: 38490191 DOI: 10.1002/adma.202313670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/06/2024] [Indexed: 03/17/2024]
Abstract
The immunosuppressive tumor microenvironment (TME) is a huge hurdle in immunotherapy. Sono-immunotherapy is a new treatment modality that can reverse immunosuppressive TME, but the sonodynamic effects are compromised by overexpressed glutathione (GSH) and hypoxia in the TME. Herein, this work reports a new sono-immunotherapy strategy using Pdδ+ single atom catalysts to enhance positive sonodynamic responses to the immunosuppressive and sono-suppressive TME. To demonstrate this technique, this work employs rich and reductive Ti vacancies in Ti3-xC2Ty nanosheets to construct the atomically dispersed Pd-C3 single atom catalysts (SAC) with Pd content up to 2.5 wt% (PdSA/Ti3-xC2Ty). Compared with Pd nanoparticle loaded Ti3-xC2Ty, PdSA/Ti3-xC2Ty single-atom enzyme showed augmented sonodynamic effects that are ascribed to SAC facilitated electron-hole separation, rapid depletion of overexpressed GSH by ultrasound (US) excited holes, and catalytic decomposition of endogenous H2O2 for relieving hypoxia. Importantly, the sono-immunotherapy strategy can boost abscopal antitumor immune responses by driving maturation of dendritic cells and polarization of tumor-associated macrophages into the antitumoral M1 phenotype. Bilateral tumor models demonstrate the complete eradication of localized tumors and enhance metastatic regression. Th strategy highlights the potential of single-atom catalysts for robust sono-immunotherapy by remodeling the tumor microenvironment.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Xialing He
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhenlin Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinming Cai
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
- Department of Orthopedic Surgery, Sheyang County People's Hospital, Yancheng, Jiangsu, 224300, China
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Su Y, Hu J, Wang Y, Li Y, Xiao L, He X, Zhang Z, Cai J, Pan D, Chen Y, Geng B, Li P, Shen L. N-Heterocycle Modified Graphene Quantum Dots as Topoisomerase Targeted Nanoantibiotics for Combating Microbial Infections. Adv Healthc Mater 2024; 13:e2302659. [PMID: 38011489 DOI: 10.1002/adhm.202302659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/26/2023] [Indexed: 11/29/2023]
Abstract
Developing next-generation antibiotics to eliminate multidrug-resistant (MDR) bacteria/fungi and stubborn biofilms is challenging, because of the excessive use of currently available antibiotics. Herein, the fabrication of anti-infection graphene quantum dots (GQDs) is reported, as a new class of topoisomerase (Topo) targeting nanoantibiotics, by modification of rich N-heterocycles (pyridinic N) at edge sites. The membrane-penetrating, nucleus-localizing, DNA-binding GQDs not only damage the cell walls/membranes of bacteria or fungi, but also inhibit DNA-binding proteins, such as Topo I, thereby affecting DNA replication, transcription, and recombination. The obtained GQDs exhibit excellent broad-spectrum antimicrobial activity against non-MDR bacteria, MDR bacteria, endospores, and fungi. Beyond combating planktonic microorganisms, GQDs inhibit the formation of biofilms and can kill live bacteria inside biofilms. RNA-seq further demonstrates the upregulation of riboflavin biosynthesis genes, DNA repair related genes, and transport proteins related genes in methicillin-resistant S. aureus (MRSA) in response to the stress induced by GQDs. In vivo animal experiments indicate that the biocompatible GQDs promote wound healing in MRSA or C. albicans-infected skin wound models. Thus, GQDs may be a promising antibacterial and antifungal candidate for clinical applications in treating infected wounds and eliminating already-formed biofilms.
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Affiliation(s)
- Yan Su
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yang Wang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Yuan Li
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Longfei Xiao
- Department of Orthopedic Surgery, Sheyang County People's Hospital, Yancheng, Jiangsu, 224300, China
| | - Xialing He
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhenlin Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinming Cai
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yu Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Ping Li
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
- Department of Orthopedic Surgery, Sheyang County People's Hospital, Yancheng, Jiangsu, 224300, China
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Ren L, Shi W, Tian Y, Zhang T, Fang J, Zhang B, Geng B, Mao J, Wang H, Zhang J, Dai X, Li J, Zhang X, Chen J, Zhu J, Yan L. A Two-Generation Reproductive Toxicity Study of Cerium Nitrate in Sprague-Dawley Rats. Biol Trace Elem Res 2024; 202:597-614. [PMID: 37148403 DOI: 10.1007/s12011-023-03692-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/29/2023] [Indexed: 05/08/2023]
Abstract
A two-generation reproductive toxicity study was performed to evaluate the effects of cerium nitrate on the development of the parent, offspring, and third generation of Sprague-Dawley (SD) rats. A total of 240 SD rats (30 rats/sex/group) were randomly divided into four dosage groups according to body weight: 0 mg/kg, 30 mg/kg, 90 mg/kg, and 270 mg/kg. The rats were administered different dosages of cerium nitrate by oral gavage. There were no observed changes related to cerium nitrate in body weight, food consumption, sperm survival rate, motility, mating rate, conception rate, abortion rate, uterine plus fetal weight, uterine weight, corpus luteum number, implantation rate, live fetus number (rate), stillbirth number (rate), absorbed fetus number (rate), appearance, visceral, and skeletal in rats of each generation dosage group. In addition, the pathological findings showed no significant lesions associated with cerium nitrate toxicity in all tissues and organs, including reproductive organs. In conclusion, the present study showed that long-term oral gavage of cerium nitrate at 30 mg/kg, 90 mg/kg, and 270 mg/kg had no significant effect on reproduction and the developmental ability of their offspring in rats. The no-observed-adverse-effect level (NOAEL) of cerium nitrate in SD rats was higher than 270 mg/kg.
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Affiliation(s)
- Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Wenjing Shi
- Department of Naval Nutrition and Food Hygiene, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai, 200433, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Tiantian Zhang
- School of Basic Medicine, Anhui Medical University, Anhui, 230032, China
| | - Jingjing Fang
- Navy Medical Center of PLA, Naval Medical University of the People's Liberation Army, Shanghai, 200433, China
| | - Bin Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Bijiang Geng
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Haoneng Wang
- Department of Marine Radiation Medicine, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai, 200433, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Xiaoyu Dai
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Jifeng Li
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China.
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China.
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, No. 800, Xiangyin Road, Yangpu District, Shanghai, 200433, China.
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Yan L, Shang S, Hu J, Zhang X, Chen J, Geng B, Zhao Y, Zhu J. An NIR-II-photoresponsive CoSnO 3 nanozyme for mild photothermally augmented nanocatalytic cancer therapy. J Mater Chem B 2024; 12:710-719. [PMID: 38164065 DOI: 10.1039/d3tb02018e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The main challenges of nanozyme-based tumor catalytic therapy (NCT) lie in the unsatisfactory catalytic activity accompanied by a complex tumor microenvironment (TME). A few nanozymes have been designed to possess both enzyme-like catalytic activities and photothermal properties; however, the previously reported nanozymes mainly utilize the inefficient and unsafe NIR-I laser, which has a low maximum permissible exposure limit and a limited penetration depth. Herein, we report for the first time an all-in-one strategy to realize mild NIR-II photothermally amplified NCT by synthesizing amorphous CoSnO3 nanocubes with efficient triple enzyme-like catalytic activities and photothermal conversion properties. The presence of Co2+ and Sn4+ endows CoSnO3 nanocubes with the triple enzyme-like catalytic activities, not only achieving enhanced reactive oxygen species (ROS) generation through the Co2+-mediated peroxidase-like catalytic reaction to generate ˙OH and Sn4+-mediated depletion of overexpressed GSH, but also realizing the catalytic decomposition of endogenous H2O2 for relieving tumor hypoxia. More importantly, the obtained CoSnO3 nanocubes with a high photothermal conversion efficiency of 82.1% at 1064 nm could achieve mild hyperthermia (43 °C), which further improves the triple enzyme-like catalytic activities of the CoSnO3 nanozyme. The synergetic therapeutic efficacy of the NIR-II-responsive CoSnO3 nanozyme through mild NIR-II PTT-enhanced NCT could realize all-in-one multimodal tumor therapy to completely eliminate tumors without recurrence. This study will open a new avenue to explore NIR-II-photoresponsive nanozymes for efficient tumor therapy.
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Affiliation(s)
- Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Siyu Shang
- Operating Theatre, Department of Anaesthesiology, First Affliated Hospital of Naval Medical University, Shanghai, 200433, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Yin Zhao
- Spine Center, Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
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Zhao Y, Yuan B, Yan L, Wang Z, Xu Z, Geng B, Guo X, Chen X. In Situ Synthesis of Ru/TiO 2- x @TiCN Ternary Heterojunctions for Enhanced Sonodynamic and Nanocatalytic Cancer Therapy. Adv Sci (Weinh) 2024; 11:e2307029. [PMID: 38032117 PMCID: PMC10811504 DOI: 10.1002/advs.202307029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/31/2023] [Indexed: 12/01/2023]
Abstract
Albeit nanozymes-based tumor catalytic therapy (NCT) relies on endogenous chemical reactions that could achieve tumor microenvironment (TME)-specialized reactive oxygen species (ROS) production, the unsatisfactory catalytic activity of nanozymes accompanied by complex TME poses a barrier to the therapeutic effect of NCT. Herein, a one-step in situ synthesis strategy is reported to construct ternary Ru/TiO2- x @TiCN heterojunctions through oxidative conversion of TiCN nanosheets (NSs) to TiO2- x NSs and reductive deposition of Ru3+ to Ru nanoparticles. The narrow bandgap and existence of heterojunctions enhance the ultrasound-activated ROS generation of Ru/TiO2- x @TiCN because of the accelerated electron transfer and inhibits electron-hole pair recombination. The augmented ROS production efficiency is achieved by Ru/TiO2- x @TiCN with triple enzyme-like activities, which amplifies the ROS levels in a cascade manner through the catalytic decomposition of endogenous H2 O2 to relieve hypoxia and heterojunction-mediated NCT, as well as depletion of overexpressed glutathione. The satisfactory therapeutic effects of Ru/TiO2- x @TiCN heterojunctions are achieved through synergetic sonodynamic therapy and NCT, which achieve the complete elimination of tumors without recurrence. This strategy highlights the potential of in situ synthesis of semiconductor heterojunctions as enhanced sonosensitizers and nanozymes for efficient tumor therapy.
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Affiliation(s)
- Yin Zhao
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
| | - Bo Yuan
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
| | - Lang Yan
- Department of Health ToxicologyFaculty of Naval MedicineNaval Medical UniversityShanghai200433China
| | - Zhiwei Wang
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
| | - Zheng Xu
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
| | - Bijiang Geng
- School of Environmental and Chemical EngineeringShanghai UniversityShanghai200444China
| | - Xiang Guo
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
| | - Xiongsheng Chen
- Spine CenterDepartment of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai200003China
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Yan L, Cao Z, Ren L, Zhang T, Hu J, Chen J, Zhang X, Liu B, Feng C, Zhu J, Geng B. A Sonoresponsive and NIR-II-Photoresponsive Nanozyme for Heterojunction-Enhanced "Three-in-One" Multimodal Oncotherapy. Adv Healthc Mater 2024; 13:e2302190. [PMID: 37792422 DOI: 10.1002/adhm.202302190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/30/2023] [Indexed: 10/05/2023]
Abstract
Although low-cost nanozymes with excellent stability have demonstrated the potential to be highly beneficial for nanocatalytic therapy (NCT), their unsatisfactory catalytic activity accompanied by intricate tumor microenvironment (TME) significantly hinders the therapeutic effect of NCT. Herein, for the first time, a heterojunction (HJ)-fabricated sonoresponsive and NIR-II-photoresponsive nanozyme is reported by assembling carbon dots (CDs) onto TiCN nanosheets. The narrow bandgap and mixed valences of Ti3+ and Ti4+ endow TiCN with the capability to generate reactive oxygen species (ROS) when exposed to ultrasound (US), as well as the dual enzyme-like activities of peroxidase and glutathione peroxidase. Moreover, the catalytic activities and sonodynamic properties of the TiCN nanosheets are boosted by the formation of HJs owing to the increased speed of carrier transfer and the enhanced electron-hole separation. More importantly, the introduction of CDs with excellent NIR-II photothermal properties could achieve mild hyperthermia (43 °C) and thereby further improve the NCT and sonodynamic therapy (SDT) performances of CD/TiCN. The synergetic therapeutic efficacy of CD/TiCN through mild hyperthermia-amplified NCT and SDT could realize "three-in-one" multimodal oncotherapy to completely eliminate tumors without recurrence. This study opens a new avenue for exploring sonoresponsive and NIR-II-photoresponsive nanozymes for efficient tumor therapy based on semiconductor HJs.
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Affiliation(s)
- Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Zhi Cao
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Tiantian Zhang
- School of Basic Medicine, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Bing Liu
- Depanrtment of Urology, the Third Affiliated Hospital of Naval Military Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 201805, China
| | - Chuanqi Feng
- College of Chemistry and Chemical Engineering, Dezhou University, University West Road 566, Dezhou, Shandong, 253023, China
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
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Ren L, Yan L, Shi W, Zhang T, Geng B, Mao J, Zhang J, Tian Y, Wang H, Gao F, Dai X, Li J, Gu J, Chen Y, Zhang X, Chen J, Zhu J. Evaluation of subchronic toxicity of the compound of diphenhydramine hydrochloride and caffeine after 28 days of repeated oral administration in Sprague-Dawley rats and beagle dogs. Drug Chem Toxicol 2023; 46:1083-1099. [PMID: 36384384 DOI: 10.1080/01480545.2022.2129674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/22/2022] [Accepted: 09/19/2022] [Indexed: 11/18/2022]
Abstract
This study was designed to evaluate the subchronic toxicity of the compound of diphenhydramine hydrochloride (DH) and caffeine in Sprague-Dawley (SD) rats and beagle dogs. A total of 180 SD rats (15/sex/group) were randomly divided into the compound low-, medium- and high-dose groups (51, 102, 204 mg/kg), DH group (60 mg/kg), caffeine group (144 mg/kg) and the vehicle control group. Sixty beagle dogs (5/sex/group) were randomly divided into the compound low-, medium- and high-dose groups (male: 14.20, 28.30, 56.60 mg/kg, female: 5.66, 14.20, 28.30 mg/kg), DH group (male: 16.60 mg/kg, female: 8.30 mg/kg), caffeine group (male: 40.00 mg/kg, female: 20.00 mg/kg) and the vehicle control group. Rats and dogs were given continuous oral administration for 28 days following a 28-day recovery period. The adverse effects of the compound on rats and beagle dogs mainly included anorexia and liver function impairment. Most adverse effects induced by administration were reversible. Under the experimental conditions, the no-observed-adverse-effect level (NOAEL) of the compound of DH and caffeine was 51 mg/kg/day for SD rats and 28.30 mg/kg/day (male) and 5.66 mg/kg/day (female) for beagle dogs.
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Affiliation(s)
- Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Wenjing Shi
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Tiantian Zhang
- School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Bijiang Geng
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Haoneng Wang
- Department of Marine Radiation Medicine, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Fangyuan Gao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Xiaoyu Dai
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jinfeng Li
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jing Gu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Yun Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
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10
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Wang H, Sun Z, Zhao W, Geng B. [S100A10 promotes proliferation and invasion of lung adenocarcinoma cells by activating the Akt-mTOR signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:733-740. [PMID: 37313814 DOI: 10.12122/j.issn.1673-4254.2023.05.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the effects of expression levels of S100 calcium-binding protein A10 (S100A10) in lung adenocarcinoma (LUAD) on patient prognosis and the regulatory role of S100A10 in lung cancer cell proliferation and metastasis. METHODS Immunohistochemistry was used to detect the expression levels of S100A10 in LUAD and adjacent tissues, and the relationship between S100A10 expression and clinicopathological parameters and prognosis of the patients was statistically analyzed. The lung adenocarcinoma expression dataset in TCGA database was analyzed using gene enrichment analysis (GSEA) to predict the possible regulatory pathways of S100A10 in the development of lung adenocarcinoma. Lactate production and glucose consumption of lung cancer cells with S100A10 knockdown or overexpression were analyzed to assess the level of glycolysis. Western blotting, CCK-8 assay, EdU-594 assay, and Transwell assays were performed to determine the expression level of S100A10 protein, proliferation and invasion ability of lung cancer cells. A549 cells with S100A10 knockdown and H1299 cells with S100A10 overexpression were injected subcutaneously in nude mice, and tumor growth was observed. RESULTS The expression level of S100A10 was significantly upregulated in LUAD tissues as compared with the adjacent tissues, and an elevated S100A10 expression level was associated with lymph node metastasis, advanced tumor stage and distant organ metastasis (P < 0.05), but not with tumor differentiation or the patients' age or gender (P > 0.05). Survival analysis showed that elevated S100A10 expressions in the tumor tissue was associated with a poor outcome of the patients (P < 0.001). In the lung cancer cells, S100A10 overexpression significantly promoted cell proliferation and invasion in vitro (P < 0.001). GSEA showed that the gene sets of glucose metabolism, glycolysis and mTOR signaling pathway were significantly enriched in high expressions of S100A10. In the tumor-bearing nude mice, S100A10 overexpression significantly promoted tumor growth, while S100A10 knockdown obviously suppressed tumor cell proliferation (P < 0.001). CONCLUSION S100A10 overexpression promotes glycolysis by activating the Akt-mTOR signaling pathway to promote proliferation and invasion of lung adenocarcinoma cells.
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Affiliation(s)
- H Wang
- Department of Oncology, First Affiliated Hospital of Wannan Medical College, Wuhu 24100, China
| | - Z Sun
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Wannan Medical College, Wuhu 24100, China
| | - W Zhao
- Department of Oncology, First Affiliated Hospital of Wannan Medical College, Wuhu 24100, China
| | - B Geng
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Wannan Medical College, Wuhu 24100, China
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11
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Yan L, Mao J, Shi W, Ren L, Li J, Geng B, Wang H, Zhang J, Tian Y, Zhang B, Gao F, Zhang X, Chen J, Zhu J. Subchronic toxicity study of ferric oxide nanoparticles through intragastric administration: A 94-d, repeated dose study in Sprague Dawley rats. Regul Toxicol Pharmacol 2023; 140:105381. [PMID: 36963718 DOI: 10.1016/j.yrtph.2023.105381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/08/2023] [Accepted: 03/15/2023] [Indexed: 03/26/2023]
Abstract
In this study, the toxicity of ferric oxide nanoparticles (Fe2O3 NPs) administered through gavage to Sprague Dawley (SD) rats for 94 d, consecutively and the recovery after Fe2O3 NPs withdrawal for 30 d were evaluated. The vehicle control group, low-, medium-, and high-dose groups were administered with the vehicle (0.5% sodium carboxymethyl cellulose [CMC-Na]), 125, 250, and 500 mg/kg of Fe2O3 NPs, respectively, administered every morning for 94 d. There was no significant difference in the body weight, food intake, hematological, blood biochemical, and urine indices of SD rats in each administration group and the control group (P > 0.05). There was no significant difference in organ weight, organ indices, and the coefficient of the visceral brain between the SD rats in the different dosage groups and the SD rats in the vehicle control group (P > 0.05). Histopathological observations showed that there was no correlation between the pathological lesions of the organs observed in this study and the dose of Fe2O3 NPs (P > 0.05). The no-observed-adverse-effect level (NOAEL) dose of Fe2O3 NPs was initially determined to be 500 mg/kg administered to SD rats through oral gavage for 94 d, consecutively, followed by recovery after Fe2O3 NPs withdrawal for 30 d.
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Affiliation(s)
- Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Wenjing Shi
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jinfeng Li
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Bijiang Geng
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Haoneng Wang
- Department of Marine Radiation Medicine, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Bin Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Fangyuan Gao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
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12
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Yan L, Wang H, Duan W, Zhang T, Shi W, Geng B, Mao J, Xu H, Ren L, Zhang J, Tian Y, Gao F, Chen J, Shen H, Zhang X, Zhu J. The reproductive toxicity of yttrium nitrate in a two-generation study in Sprague-Dawley rats. J Trace Elem Med Biol 2023; 76:127117. [PMID: 36512970 DOI: 10.1016/j.jtemb.2022.127117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To evaluate the effects of yttrium nitrate on the development of the parent, offspring and third generation of Sprague-Dawley (SD) rats by using a two-generation reproductive toxicity test. METHODS The SD rats were randomly divided into 0 mg/kg group, 10.0 mg/kg group, 30.0 mg/kg group and 90.0 mg/kg group according to the different doses of yttrium nitrate administration. The reproductive toxicity of parent, offspring and third generation SD rats were compared. RESULTS The weight gains of F1a female rats and F2a female rats in the low-dose groups were significantly lower than those of the control groups (p < 0.05), the weight gains of F1a male rats in the medium-dose and high-dose groups were significantly lower than those of the control groups (p < 0.05), and the weight gains of F2a male rats in the low-dose, medium-dose and high-dose groups were significantly lower than those of the control groups (p < 0.05). In F0 male rats, the absolute weight and relative weight of the liver in the low-dose, middle-dose, and high-dose groups were significantly lower than those of the control group (p < 0.05). In F1b male rats, the absolute and relative weights of the liver in the medium-dose and high-dose groups were significantly lower than those of the control group (p < 0.05). In F2b male rats, the absolute and relative weights of the liver and spleen of the medium-dose and high-dose groups were significantly lower than those of the control group (p < 0.05). In F2a female rats, the absolute weight and relative weight of oviduct in the high-dose group were significantly lower than those in the control group (p < 0.05). The absolute and relative weights of lung, spleen, brain and uterus of F2b female rats in the high-dose group were higher than those of the control group (p < 0.05). But the pathological test results showed no hepatotoxicity. There was no statistically significant difference in sperm count and sperm motility between male rats in the yttrium nitrate administration groups and the control group (p > 0.05). There was no significant correlation between F0, F1a, F1b, F2a, F2b SD rats' reproductive organ lesions and the dose of yttrium nitrate. CONCLUSION Yttrium nitrate at a dose of 90 mg/kg has no reproductive toxicity to two generations of SD rats, but 30.0 mg/kg dose of yttrium nitrate is toxic to the liver weight of male two generations of SD rats, but no hepatotoxicity.
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Affiliation(s)
- Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Haoneng Wang
- Department of Marine Radiation Medicine, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Wanli Duan
- Department of Marine Radiation Medicine, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Tiantian Zhang
- School of Basic Medicine, Anhui Medical University, Anhui 230032, China
| | - Wenjing Shi
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Bijiang Geng
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Huan Xu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Fangyuan Gao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China
| | - Hui Shen
- Department of Naval Nutrition and Food Hygiene, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China.
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China.
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University of the People's Liberation Army, Shanghai 200433, China.
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13
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Geng B, Yan L, Zhu Y, Shi W, Wang H, Mao J, Ren L, Zhang J, Tian Y, Gao F, Zhang X, Chen J, Zhu J. Carbon Dot@MXene Nanozymes with Triple Enzyme-Mimic Activities for Mild NIR-II Photothermal-Amplified Nanocatalytic Therapy. Adv Healthc Mater 2023; 12:e2202154. [PMID: 36353889 DOI: 10.1002/adhm.202202154] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/31/2022] [Indexed: 11/11/2022]
Abstract
Nanozymes have shown promising potential in disease treatment owing to the advantages of low-cost, facile fabrication, and high stability. However, the highly complex tumor microenvironment (TME) and inherent low catalytic activity severely restrict the clinical applications of nanozymes. Herein, a novel mild hyperthermia-enhanced nanocatalytic therapy platform based on Z-scheme heterojunction nanozymes by depositing N-doped carbon dots (CDs) onto Nb2 C nanosheets is constructed. CD@Nb2 C nanozymes not only display outstanding photothermal effects in the safe and efficient NIR-II window but also possess triple enzyme-mimic activities to obtain amplified ROS levels. The triple enzyme-mimic activities and NIR-II photothermal properties of CD nanozymes are enhanced by the construction of Z-scheme heterojunctions owing to the accelerated carrier transfer process. More importantly, the introduction of mild hyperthermia can further improve the peroxidase-mimic and catalase-mimic activities as well as the glGSH depletion abilities of CD@Nb2 C nanozymes, thereby producing more ROS to efficiently inhibit tumor growth. The combined therapy effect of CD@Nb2 C nanozymes through mild NIR-II photothermal-enhanced nanocatalytic therapy can achieve complete tumor eradication. This work highlights the efficient tumor therapy potential of heterojunction nanozymes.
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Affiliation(s)
- Bijiang Geng
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.,School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Yuping Zhu
- Basic Medical Experimental Teaching Center, Basic Medical College, Naval Medical University, Shanghai, 200433, China
| | - Wenjing Shi
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Haoneng Wang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Lijun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Fangyuan Gao
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China
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Liu X, Zhang K, Wang L, Geng B, Liu Z, Yi Q, Xia Y. Fluid shear stress-induced down-regulation of miR-146a-5p inhibits osteoblast apoptosis via targeting SMAD4. Physiol Res 2022. [DOI: 10.33549/physiolres.934922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Fluid shear stress (FSS) plays an important role in osteoblast apoptosis. However, the role of miRNA in osteoblast apoptosis under FSS and possible molecular mechanisms remain unknown. Our aim of the study was to explore whether miR-146a-5p regulates osteoblast apoptosis under FSS and its molecular mechanisms. FSS could down-regulate the expression of miR-146a-5p in MC3T3-E1 cells. We confirm that up-regulation of miR-146a-5p promotes osteoblasts apoptosis and down-regulation of miR-146a-5p inhibits osteoblasts apoptosis. We further demonstrated that FSS inhibits osteoblast apoptosis by down-regulated miR-146a-5p. Dual-luciferase reporter assay validated that SMAD4 is a direct target gene of miR-146a-5p. In addition, mimic-146a-5p suppressed FSS-induced up-regulation of SMAD4 protein levels, which suggests that FSS elevated SMAD4 protein expression levels via regulation miR-146a-5p. Further investigations showed that SMAD4 could inhibit osteoblast apoptosis. We demonstrated that miR-146a-5p regulates osteoblast apoptosis via targeting SMAD4. Taken together, our present study showed that FSS-induced down-regulation miR-146a-5p inhibits osteoblast apoptosis via target SMAD4. These findings may provide novel mechanisms for FSS to inhibit osteoblast apoptosis, and also may provide a potential therapeutic target for osteoporosis.
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Affiliation(s)
| | | | | | | | | | | | - Y Xia
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou Gansu, China
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15
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Zhang K, Liu K, Yu D, Tang Y, Geng B, Xia Y, Xu P. The Therapeutic and Prognostic Role of Clusterin in Diverse
Musculoskeletal Diseases: A Mini Review. Physiol Res 2022. [DOI: 10.33549/physiolres.934908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This mini-review aims to introduce the association between Secretory clusterin/apolipoprotein J (sCLU) and diverse musculoskeletal diseases. A comprehensive review of the literature was performed to identify basic science and clinical studies, which implied the therapeutic and prognostic role of sCLU in diverse musculoskeletal diseases. sCLU is a multifunctional glycoprotein that is ubiquitously expressed in various tissues and is implicated in many pathophysiological processes. Dysregulated expression of sCLU had been reported to be assocaited with proliferative or apoptotic molecular processes and inflammatory responses, which participated in many pathophysiological processes such as degenerative musculoskeletal diseases including ischemic osteonecrosis, osteoarthritis (OA) and degenerative cervical myelopathy (spinal cord injury), neoplastic musculoskeletal diseases, inflammatory and autoimmune musculoskeletal diseases including Rheumatoid arthritis (RA), joint damage induced by Brucella abortus, Sjogren's syndrome, idiopathic inflammatory myopathies, muscle glucose metabolism, insulin sensitivity and traumatic musculoskeletal diseases. Recent findings of sCLU in these musculoskeletal diseases provides insights on the therapeutic and prognostic role of sCLU in these musculoskeletal diseases. sCLU may serve as a promising therapeutic target for ischemic osteonecrosis, OA and spinal cord injury as well as a potential prognostic biomarker for OA and RA. Moreover, sCLU could act as a prognostic biomarker for osteosarcoma (OS) and a promising therapeutic target for OS resistance. Although many studies support the potential therapeutic and prognostic role of sCLU in some inflammatory and autoimmune-mediated musculoskeletal diseases, more future researches are needed to explore the molecular pathogenic mechanism mediated by sCLU implied in these musculoskeletal diseases.
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Affiliation(s)
| | | | | | | | | | | | - P Xu
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
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16
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Loop L, Leng A, Revier M, Geng B. FROM CVID TO AERD: ADDRESSING EPITHELIAL BARRIER DYSFUNCTION FROM NON-TYPE-2 TO HIGH-TYPE-2 AIRWAY INFLAMMATION. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Loop L, Appiah M, Smiley K, Eichenfield L, Geng B. A NOVEL EFFICIENT APPROACH TO ASSESSING ATOPIC DERMATITIS DISEASE SEVERITY: VIGAXBSA COMPARED TO EASI. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Geng B, Hu J, Li Y, Feng S, Pan D, Feng L, Shen L. Near-infrared phosphorescent carbon dots for sonodynamic precision tumor therapy. Nat Commun 2022; 13:5735. [PMID: 36175446 PMCID: PMC9523047 DOI: 10.1038/s41467-022-33474-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 09/16/2022] [Indexed: 11/09/2022] Open
Abstract
Theranostic sonosensitizers with combined sonodynamic and near infrared (NIR) imaging modes are required for imaging guided sonodynamic therapy (SDT). It is challenging, however, to realize a single material that is simultaneously endowed with both NIR emitting and sonodynamic activities. Herein, we report the design of a class of NIR-emitting sonosensitizers from a NIR phosphorescent carbon dot (CD) material with a narrow bandgap (1.62 eV) and long-lived excited triplet states (11.4 μs), two of which can enhance SDT as thermodynamically and dynamically favorable factors under low-intensity ultrasound irradiation, respectively. The NIR-phosphorescent CDs are identified as bipolar quantum dots containing both p- and n-type surface functionalization regions that can drive spatial separation of e−–h+ pairs and fast transfer to reaction sites. Importantly, the cancer-specific targeting and high-level intratumor enrichment of the theranostic CDs are achieved by cancer cell membrane encapsulation for precision SDT with complete eradication of solid tumors by single injection and single irradiation. These results will open up a promising approach to engineer phosphorescent materials with long-lived triplet excited states for sonodynamic precision tumor therapy. Combining sonodynamic properties and NIR fluorescence into a single material is desired for deep tissue applications. Here, the authors report on carbon dot sono-sensitizers engineered with a narrow bandgap and coated with cancer cell membrane for targeted NIR guided sonodynamic cancer therapy.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yuan Li
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Shini Feng
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Lingyan Feng
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China.
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, 200233, China.
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19
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Zhang K, Liu X, Tang Y, Liu Z, Yi Q, Wang L, Geng B, Xia Y. Fluid Shear Stress Promotes Osteoblast Proliferation and Suppresses Mitochondrial-Mediated Osteoblast Apoptosis Through the miR-214-3p-ATF4 Signaling Axis. Physiol Res 2022. [DOI: 10.33549/physiolres.934917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
MicroRNAs (miRNAs) play vital roles in bone metabolism and participate in the mechanically induced bone alterations. The underlying molecular mechanisms by which fluid shear stress (FSS) regulate the proliferative and apoptotic phenotypic changes of osteoblasts remain elusive. The study aimed to investigate the regulatory effects of FSS on osteoblast proliferative and apoptotic phenotypes and the roles of miR-214-3p-ATF4 (activating transcription factor 4) signaling axis in the mechanomodulation processes. FSS promoted the proliferative activity of osteoblasts and suppressed mitochondrial-mediated osteoblast apoptosis. FSS decreased miR-214-3p expression and increased ATF4 expression in MC3T3-E1 osteoblasts. MiR-214-3p inhibited osteoblast proliferative activity and promoted mitochondrial-mediated osteoblast apoptosis. Overexpression of miR-214-3p attenuated FSS-enhanced osteoblast proliferation and FSS-suppressed mitochondrial-mediated osteoblast apoptosis. We validated that ATF4 acted as a target gene of miR-214-3p. Moreover, miR-214 3p regulated osteoblast proliferation and apoptosis through targeting ATF4. Taken together, our study proved that FSS could suppress mitochondrial-mediated osteoblast apoptosis and promote osteoblast proliferation through the miR-214-3p-ATF4 signaling axis.
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Affiliation(s)
- K Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou Gansu, China, Orthopaedics Key Laboratory of Gansu Province, Lanzhou Gansu, China
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20
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Appiah M, Loop L, Geng B, Eichenfield L. LB919 Vigxbsa in a pediatric population: a novel tool for evaluating atopic dermatitis severity and responsiveness. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Geng B, Li Y, Hu J, Chen Y, Huang J, Shen L, Pan D, Li P. Graphitic-N-doped graphene quantum dots for photothermal eradication of multidrug-resistant bacteria in the second near-infrared window. J Mater Chem B 2022; 10:3357-3365. [PMID: 35380572 DOI: 10.1039/d2tb00192f] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Developing efficient therapeutic strategies for combating bacterial infection remains a challenge owing to the indiscriminate utilization of antibiotics and the prevalence of multidrug-resistant (MDR) bacteria. Herein, highly graphitic-N-doped graphene quantum dots (N-GQDs) with efficient NIR-II photothermal conversion properties were synthesized for the first time for photothermal antibacterial therapy. The obtained N-GQDs exhibited strong NIR absorption ranging from 700 to 1200 nm, achieving high photothermal conversion efficiency of 77.8% and 50.4% at 808 and 1064 nm, respectively. Outstanding antibacterial and antibiofilm activities against MDR bacteria (methicillin-resistant Staphylococcus aureus, MRSA) were achieved by the N-GQDs in the presence of an 808 or 1064 nm laser. In vivo investigations verified that the generation of hyperthermia by N-GQDs plus a NIR-II laser can combat MDR bacterial infections and thus significantly accelerate wound healing. Our work provides a novel carbon-based nanomaterial as a photothermal antibacterial agent for efficiently avoiding bacterial resistance and fighting MDR bacterial infections.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Yuan Li
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Jinyan Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Yuanyuan Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Junyi Huang
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Ping Li
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
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Yan L, Gao F, Shi W, Geng B, Zhang J, Mao J, Tian Y, Ren L, Dai X, Chen J, Zhu J, Zhang X. A Two-Generation Reproductive Toxicity Study of Lanthanum Nitrate in SD Rats. Biol Trace Elem Res 2022; 200:2268-2282. [PMID: 34347232 DOI: 10.1007/s12011-021-02841-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/14/2021] [Indexed: 10/20/2022]
Abstract
In order to evaluate the effects of lanthanum nitrate on the development of the parent, offspring, and the third generation of Sprague-Dawley (SD) rats, a two-generation reproductive toxicity experiment, was conducted. Two hundred and forty specific pathogen-free (SPF) healthy SD rats were randomly divided into the control group, low-, medium-, and high-dose group, with 30 male and 30 female rats in each group. The rats in each group were given 0 mg/kg, 10.0 mg/kg, 30.0 mg/kg, and 90.0 mg/kg lanthanum nitrate by gavage, respectively. There was no statistically significant difference between the weight gain and food intake of rats in each group. High-dose lanthanum nitrate had no effect on rat implantation and no embryo toxicity. The absolute and relative liver weights of F1a and F1b male rats in the high-dose group were significantly decreased. The absolute liver and spleen weight of F1b female rats in the high-dose group decreased significantly, but the relative weight did not change significantly. Histopathological examination results showed that there were no significant differences in the effects of different doses of lanthanum nitrate on the uterus, ovaries, oviduct, testes and epididymis, and liver of SD rats. Under the experimental conditions, 90.0 mg/kg lanthanum nitrate had an effect on the liver weight of the SD rats, but there was no liver toxicity. The no visible harmful effect level (NOAEL) of lanthanum nitrate on SD rats' reproduction toxicity is 90 mg/kg.
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Affiliation(s)
- Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Fangyuan Gao
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Wenjing Shi
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Bijiang Geng
- School of Environmental Engineering, Shanghai University, Shanghai, 200444, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Jingjing Mao
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Yijun Tian
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Lijun Ren
- School of Environmental Engineering, Shanghai University, Shanghai, 200444, China
| | - Xiaoyu Dai
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China.
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China.
| | - Xiaofang Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, The Second Military Medical University, Shanghai, 200433, China.
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Geng B, Zhang S, Yang X, Shi W, Li P, Pan D, Shen L. Cu2-xO@TiO2-y Z-scheme heterojunctions for sonodynamic-chemodynamic combined tumor eradication. Chemical Engineering Journal 2022; 435:134777. [DOI: 10.1016/j.cej.2022.134777] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
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24
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Geng B, Xu S, Li P, Li X, Fang F, Pan D, Shen L. Platinum Crosslinked Carbon Dot@TiO 2-x p-n Junctions for Relapse-Free Sonodynamic Tumor Eradication via High-Yield ROS and GSH Depletion. Small 2022; 18:e2103528. [PMID: 34859576 DOI: 10.1002/smll.202103528] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/30/2021] [Indexed: 05/23/2023]
Abstract
Sonodynamic therapy as a promising noninvasive modality is being developed for tumor therapy, but there is a lack of next-generation sonosensitizers that can generate full ROS at high yields and simultaneously deplete elevated levels of glutathione (GSH) in tumor cells. Semiconductor p-n junctions are engineered as high-efficacy sonosensitizers for sonodynamic tumor eradication using pyridine N-doped carbon dots (N-CDs) as a p-type semiconductor and oxygen-deficient TiO2-x nanosheets as a n-type semiconductor. The rate constants of 1 O2 and •OH generation by ultrasound-excited N-CD@TiO2-x p-n junctions are 4.3 and 4.5 times higher than those of TiO2 , respectively. A Z-scheme carrier migration mechanism in the p-n junction achieving the rapid spatial separation of the ultrasound-generated electron-hole pairs for enhanced full ROS production is proposed. GSH-cleavable, Pt-crosslinked, N-doped CD fluorescent probes to detect the presence of intracellular GSH are also constructed. A GSH-responsive, p-n junction platform (Pt/N-CD@TiO2-x ) with integrated GSH detection, GSH depletion, and enhanced sonodynamic performance is then assembled. Malignant tumors are completely eradicated without relapse via intravenous administration of low-dose Pt/N-CD@TiO2-x under ultrasound irradiation. This work substantiates the great potential of biocompatible, GSH-responsive p-n junctions as next-generation sonosensitizers via p-n junction-enhanced ROS generation and metal ion oxidation of intracellular GSH.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Shuang Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Ping Li
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Xiaokai Li
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Fuling Fang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, 200233, China
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Feng C, Xin B, Li H, Geng B. Simple and Fast Synthesis of Ni/NiO-loaded Carbon Nanotubes for the Alkaline Hydrogen Evolution Reaction. CHEM LETT 2022. [DOI: 10.1246/cl.210604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chuanqi Feng
- Dezhou University, Dezhou 253023, Shandong Province, P. R. China
| | - Bingwei Xin
- Dezhou University, Dezhou 253023, Shandong Province, P. R. China
| | - Hongliang Li
- Dezhou University, Dezhou 253023, Shandong Province, P. R. China
| | - Bijiang Geng
- Shanghai University, Shanghai 200444, P. R. China
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Geng B. Legal Text Mining and Analysis Based on Artificial Intelligence. INT J ARTIF INTELL T 2021. [DOI: 10.1142/s0218213022400061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Geng B, Collins C, Loop L, Ozog S, Anterasian C, Ripp C, Newton K, Ingulli E. P090 BALANCE OF B-CELL POPULATIONS IN PEDIATRIC SOLID-ORGAN TRANSPLANT RECIPIENTS ASSOCIATED WITH INFECTION RISK. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Geng B, Terpstra C, Karlin E, Harder C. D002 RAPID FINGERSTICK BASED POINT-OF-CARE SYSTEM FOR IGE QUANTIFICATION. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Loop L, Eichenfield L, Geng B. P170 DISEASE IMPROVEMENT IN ATOPIC DERMATITIS THROUGH A MULTIDISCIPLINARY APPROACH WITH ALLERGY, DERMATOLOGY, AND CLINICAL PHARMACY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Geng B, Li P, Fang F, Shi W, Glowacki J, Pan D, Shen L. Antibacterial and osteogenic carbon quantum dots for regeneration of bone defects infected with multidrug-resistant bacteria. Carbon 2021; 184:375-385. [DOI: 10.1016/j.carbon.2021.08.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
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31
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Geng B, Yang X, Li P, Shi W, Pan D, Shen L. W-Doped TiO 2 Nanorods for Multimode Tumor Eradication in Osteosarcoma Models under Single Ultrasound Irradiation. ACS Appl Mater Interfaces 2021; 13:45325-45334. [PMID: 34533945 DOI: 10.1021/acsami.1c14701] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sonosensitizers play crucial roles in the controlled production of reactive oxygen species (ROS) under ultrasound (US) irradiation with high tissue-penetration depth for noninvasive solid tumor therapy. It is desirable to fabricate structurally simple yet multifunctional sonosensitizers from ultrafine nanoparticles for ROS-based multimode therapy to overcome monomode limitations such as low ROS production yields and endogenous reductive glutathione (GSH) to ROS-based treatment resistance. We report the facile high-temperature solution synthesis of ultrafine W-doped TiO2 (W-TiO2) nanorods for exploration of their sonodynamic, chemodynamic, and GSH-depleting activities in sonodynamic-chemodynamic combination tumor therapy. We found that W5+ and W6+ ions doped in W-TiO2 nanorods play multiple roles in enhancing their ROS production. First, W doping narrows the band gap from 3.2 to 2.3 eV and introduces oxygen and Ti vacancies for enhancing their sonodynamic performance. Second, W5+ doping endows W-TiO2 nanorods with Fenton-like reaction activity to produce •OH from endogenous H2O2 in the tumor. Third, W6+ ions reduce endogenous GSH to glutathione disulfide (GSSG) and, in turn, form W5+ ions that further enhance their chemodynamic activity, which greatly modifies thae oxidation-reduction tumor microenvironment in the tumor. In vivo experiments display the excellent ability of W-TiO2 nanorods for enhanced tumor eradication in human osteosarcoma models under single US irradiation. Importantly, the ultrafine nanorod morphology facilitates rapid excretion from the body, displaying no significant systemic toxicity. Our work suggests that multivalent metal doping in ultrafine nanomaterials is an effective and simple strategy for the introduction of new functions for ROS-based multimode therapy.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xue Yang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Ping Li
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Wenyan Shi
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Longxiang Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai 200233, China
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Geng B, Xu S, Shen L, Fang F, Shi W, Pan D. Multifunctional carbon dot/MXene heterojunctions for alleviation of tumor hypoxia and enhanced sonodynamic therapy. Carbon 2021; 179:493-504. [DOI: 10.1016/j.carbon.2021.04.070] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
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33
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Dong B, Xu GC, Liu ST, Liu T, Geng B. MiR-34a affects G2 arrest in prostate cancer PC3 cells via Wnt pathway and inhibits cell growth and migration. Eur Rev Med Pharmacol Sci 2021; 24:8349-8358. [PMID: 32894541 DOI: 10.26355/eurrev_202008_22631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the effect and mechanism of miRNA-34a overexpression on proliferation and migration of PC3 prostate cancer cells. PATIENTS AND METHODS Benign prostatic hyperplasia tissue (30 cases), prostate cancer tissue (30 cases), and prostate paracancerous tissue (30 cases) were collected. Levels of miRNA-34a in these fresh tissues were measured by fluorescence quantitative PCR. PC3 cells were divided into non-loaded group and overexpression group. Cells in the non-loaded group were transfected with non-loaded plasmid. Cells in the overexpression group were transfected with miRNA-34a plasmid, and the miRNA-34a level was determined by fluorescence quantitative PCR to confirm the overexpression. Cell proliferation was analyzed by CCK-8 assay. Cell migration rate was measured by cell scratch assay. Flow cytometry was used to detect apoptosis and analyze cell cycle. Western blot was used to measure the expression levels of β-catenin, E-cadherin and Vimentin. RESULTS The expression level of miRNA-34a in prostate cancer tissue was significantly lower than that in prostate paracancerous tissue. Dual-Luciferase reporter gene assay was used to analyze the transcriptional activity of Wnt1 gene. The proliferation and migration of PC3 cells were significantly decreased after overexpression of miRNA-34a, and the differences were statistically significant compared with those in the non-loaded group (p<0.05). Flow cytometry analysis showed that in the overexpression group, the apoptotic rate, as well as the proportion of cells in the G2 phase, was significantly higher than that in the non-loaded group (p<0.05). The β-catenin level in the nucleus of PC3 cells was significantly reduced after overexpression of miRNA-34a. The total protein levels of β-catenin and Vimentin were significantly decreased, whereas the level of E-cadherin in the overexpression group was apparently increased, compared with that in the non-loaded group. The Dual-Luciferase reporter gene showed a decrease in the relative fluorescence intensity of Wnt1 after overexpression of miR-34a (p<0.05). CONCLUSIONS Overexpression of miRNA-34a inhibits Wnt/β-catenin pathway by regulating the transcriptional activity of Wnt1, thereby regulating the proliferation and migration of PC3 cells and promoting apoptosis.
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Affiliation(s)
- B Dong
- Department of Urinary Surgery (I), The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar. P.R. China.
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Gao J, Liu W, Geng B, Lei Q, Han H, Zhou Y, Liu J, Cao D, Li H, Li F. Effect of Plant Essential Oil on Growth Performance and Immune Function During Rearing Period in Laying Hens. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- J Gao
- Shandong Academy of Agricultural Sciences, China; Sericultural Research Institute of Shandong Province, China
| | - W Liu
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - B Geng
- Sericultural Research Institute of Shandong Province, China
| | - Q Lei
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Han
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - Y Zhou
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - J Liu
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - D Cao
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Li
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - F Li
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
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35
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Geng B, Wang X, Li P, Shen W, Qin H, Fang F, Yin L, Shen L, Pan D. Multifunctional Carbon Dots for Trace Water Detection, White LEDs, and Bioimaging. ChemistrySelect 2019. [DOI: 10.1002/slct.201904133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Xulong Wang
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Ping Li
- School of Life SciencesShanghai University Shanghai 200444 P.R. China
| | - Wenwen Shen
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Hua Qin
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Fuling Fang
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Luqiao Yin
- Key Laboratory of Advanced Display and System ApplicationsShanghai University Shanghai 200072 P. R. China
| | - Longxiang Shen
- Department of Orthopedic SurgeryShanghai Jiao Tong University affiliated Sixth People's Hospital Shanghai 200233 P.R. China
| | - Dengyu Pan
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
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36
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Geng B, Shen W, Li P, Fang F, Qin H, Li XK, Pan D, Shen L. Carbon Dot-Passivated Black Phosphorus Nanosheet Hybrids for Synergistic Cancer Therapy in the NIR-II Window. ACS Appl Mater Interfaces 2019; 11:44949-44960. [PMID: 31714729 DOI: 10.1021/acsami.9b15569] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Metal-free layered black phosphorus (BP) nanosheets with an excellent photothermal effect and large surface areas have been widely applied in biomedicine but are easily oxidized in ambient conditions yielding insulating phosphorus oxides adsorbed on its surface. Several chemical-functionalized strategies have been explored to protect thin layers of BP; however, the performance of passivated BP often decreases significantly, falling behind the single BP due to the strong structure perturbation. Herein, we designed and constructed 0D/2D hybrid photothermal agents by assembling NIR-II-responsive carbon dots (NIR-II-CDs) on BP nanosheets. NIR-II-CDs improve the ambient stability of BP by isolating them from water and oxygen and enhance the photothermal properties of BP nanosheets. Such NIR-II-CD/BP hybrids strengthen the light-harvesting ability, achieving high photothermal conversion efficiencies in the NIR-I (77.3%) and NIR-II (61.4%) windows, which is significantly higher than that of pristine BP (49.5 and 28.4% at 808 and 1064 nm). Owing to the intrinsic advantage of 1064 nm laser and the excellent PTT effect of our NIR-II-CD/BP hybrids, complete tumor eradication was realized in a deep-tissue tumor model.
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Affiliation(s)
| | | | | | | | | | | | | | - Longxiang Shen
- Department of Orthopedic Surgery , Shanghai Jiao Tong University affiliated Sixth People's Hospital , Shanghai 200233 , P.R. China
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Geng B, Qin H, Zheng F, Shen W, Li P, Wu K, Wang X, Li X, Pan D, Shen L. Carbon dot-sensitized MoS 2 nanosheet heterojunctions as highly efficient NIR photothermal agents for complete tumor ablation at an ultralow laser exposure. Nanoscale 2019; 11:7209-7220. [PMID: 30920555 DOI: 10.1039/c8nr10445j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Currently, one of the major hurdles hindering the clinical applications of photothermal therapy (PTT) and photothermal-chemo combination therapy (PCT) is the lack of highly efficient, readily derived, and irradiation-safe photothermal agents in the biologically transparent window. Herein, we report the first design and rational construction of 0D/2D/0D sandwich heterojunctions for greatly enhanced PTT and PCT performances using 0D N-doped carbon dots and 2D MoS2 nanosheets as the assembly units. The well-matching heterojunctions enabled an additional enhancement in NIR absorbance owing to the carrier injection from carbon dots to MoS2 nanosheets, and achieved a much higher photothermal conversion efficiency (78.2%) than that of single NIR-CDs (37.6%) and MoS2 (38.3%) only. In virtue of the heterojunction-based PTT, complete tumor recession without recurrence or pulmonary metastasis was realized at an ultralow and safe laser exposure (0.2 W cm-2) below the skin tolerance irradiation threshold. Furthermore, by taking advantage of the strong X-ray attenuation and effective drug loading capacity of MoS2 nanosheets, the CT imaging-guided PCT was achieved at 0.1 W cm-2, without inducing noticeable toxic side effects. Our findings can substantiate the potential of a novel 0D/2D heterojunction for cancer theranostics.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P.R. China.
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Grobman L, Geng B. CROSS REACTIVITY OF SKIN PRICK TEST RESULTS TO ENVIRONMENTAL AERO-ALLERGENS. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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Malhotra A, Wu X, Geng B, Hersey D, Gandhi D, Sanelli P. Management of Small Unruptured Intracranial Aneurysms: A Survey of Neuroradiologists. AJNR Am J Neuroradiol 2018; 39:875-880. [PMID: 29650787 DOI: 10.3174/ajnr.a5631] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/03/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND PURPOSE The long-term history and management of unruptured intracranial aneurysms is not well understood. Our aim was to determine current practice patterns in the management of unruptured intracranial aneurysms, especially regarding imaging surveillance for conservatively managed aneurysms of this type. MATERIALS AND METHODS An on-line survey was designed to examine physician practice and preference regarding the management of small unruptured intracranial aneurysms (≤7 mm in diameter). The survey was circulated to members of the American Society of Neuroradiology. Participation was voluntary, and all responses were anonymous. RESULTS A total of 227 individual survey responses were obtained and included in the analysis with 54.6% (124/227) from diagnostic neuroradiologists (practicing >50% neuroradiology) and one-third (29%) from neurointerventional radiologists. One hundred seventy-three of 227 responded that routine, periodic imaging surveillance would be appropriate for conservatively managed unruptured intracranial aneurysms, and 84% of respondents recommended surveillance frequency of at least once a year. Fifty-nine percent favored indefinite, life-long follow-up for small unruptured intracranial aneurysms, and a similar number of respondents favored noncontrast MR angiography for aneurysm follow-up. Significant heterogeneity was found in size measurements used to assess aneurysms and criteria used to define growth on surveillance imaging. CONCLUSIONS The natural history of intracranial aneurysms is not well-understood. A large proportion of incidentally detected, unruptured aneurysms are small (<7 mm). The survey results show significant heterogeneity in practice even among neuroradiologists and underlies the need to standardize imaging practice. Further studies are needed to assess the optimal frequency and duration of surveillance imaging for unruptured intracranial aneurysms. The criteria used to measure aneurysms and define growth on imaging also need to be standardized.
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Affiliation(s)
- A Malhotra
- From the Department of Radiology and Biomedical Imaging (A.M.), Yale School of Medicine, New Haven, Connecticut
| | - X Wu
- Yale School of Medicine (X.W., B.G.), New Haven, Connecticut
| | - B Geng
- Yale School of Medicine (X.W., B.G.), New Haven, Connecticut
| | - D Hersey
- Clinical Information Services (D.H.), Cushing/Whitney Medical Library, Yale University, New Haven, Connecticut
| | - D Gandhi
- Department of Interventional Neuroradiology (D.G.), University of Maryland School of Medicine, Baltimore, Maryland
| | - P Sanelli
- Department of Radiology (P.S.), Northwell Health, New York, New York
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Mendez I, Hansen BW, Grabow CM, Smedegaard EJL, Skogberg NB, Uth XJ, Bruhn A, Geng B, Kamavuako EN. Evaluation of the Myo armband for the classification of hand motions. IEEE Int Conf Rehabil Robot 2018; 2017:1211-1214. [PMID: 28813986 DOI: 10.1109/icorr.2017.8009414] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Pattern recognition-based control systems have been widely investigated in prostheses and virtual reality environments to improve amputees' quality of life. Most of these systems use surface electromyography (EMG) to detect user movement intentions. The Myo armband (MYB) is a wireless wearable device, developed by Thalmic Labs, which enables EMG recordings with a limited bandwidth (<100Hz). The aim of this study was to compare MYB's narrow bandwidth with a conventional EMG acquisition system (CONV) that captures the full EMG spectrum to assess its suitability for pattern recognition control. A crossover study was carried out with eight able-bodied participants, performing nine hand gestures. Six features were extracted from the data and classified by Linear Discriminant Analysis (LDA). Results showed a mean classification error of 5.82 ± 3.63% for CONV and 9.86 ± 8.05% for MYB with no significantly difference (P = 0.056). This implies that MYB may be suitable for pattern recognition applications despite the limitation in the bandwidth.
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Pan D, Wang L, Li Z, Geng B, Zhang C, Zhan J, Yin L, Wang L. Synthesis of graphene quantum dot/metal–organic framework nanocomposites as yellow phosphors for white light-emitting diodes. NEW J CHEM 2018. [DOI: 10.1039/c7nj04909a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphene quantum dots (GQDs) and a metal–organic framework were assembled to form a nanocomposite for solving the GQDs’ fluorescence quenching problem in WLEDs.
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Affiliation(s)
- Dengyu Pan
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Lijun Wang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Zhen Li
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Bijiang Geng
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Chen Zhang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Jing Zhan
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Luqiao Yin
- Key Laboratory of Advanced Display and System Applications
- Shanghai University
- Shanghai
- P. R. China
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology
- Shanghai University
- Shanghai 200444
- P. R. China
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Feng YL, Fan JH, Lin XJ, Yang JC, Cui QH, Tang XJ, Xu GH, Geng B. Facilitating the measurement of circulatory hydrogen sulfide with fluorescence probe-coated microplates. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:1060-1065. [PMID: 29263482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The hydrogen sulfide (H2S) role in pathogenesis of various diseases were wildly addressed in recent decade. The circulatory (plasma or serum) and biological fluid H2S measurement is still an enormous issues due to the technical limitation. This paper aimed to develop a novel measurement method based on fluorescence probe. METHODS Firstly, 20 μL ethanol was used to dissolve 100 pmol fluorescence probe, then added in a 96-well plate. An equal volume of ethanol was also added to the blank well of the plate. The plate was placed in a dark room for about 1 h until the fluorescence probe was evenly coated in the 96-well microplate and dried. The plate was frozen at -20 °C for later use. Secondly, the plasma or serum sample was added with saturated ammonium sulfate buffer (pH 7.8) and then centrifuged to remove the proteins. The equal volume supernatant liquid was added to the probe-coated well and the probe-uncoated well. The plate was incubated in a dark environment at 37 °C for 2 h. Finally, after incubation, the fluorescence density was acquired at ΛEx/ΛEm 340/445 nm in a microplate reader. The differences of the fluorescence density values between the probe-coated well and probe-uncoated well were counted and H2S concentration of plasma/serum was calculated by standard curve with NaHS. RESULTS The method had high sensitivity (from 0.3 to 100 μmol/L) and specificity for measuring H2S as compared with other biologically relevant reactive sulfur species and sulfur-containing amino acid. Serum H2S concentrations were assayed in 188 health volunteers using this method [(12.1±3.5) μmol/L, 95%CI: 4.6-19.8 μmol/L], and the frequency distribution showed a normal tendency(one-sample Kolmogorov-Smirnov test, P>0.1). The serum H2S concentrations in 30 hypertension patients were decreased compared with 22 age- and gender-matched health individuals (paired-samples t test, t=9.937, P<0.001). There were no differences of H2S concentration in serum [(19.66±2.32) μmol/L] or plasma [(18.67±2.07) μmol/L], between the samples acquired from artery [(19.34±0.51) μmol/L] or vein [(18.99±0.50) μmol/L] of male Wistar rats (repeated measurement of ANOVA, P=0.38). One week frozen samples did not affect the detection. The values of the repeated measurement did not differ (two-way ANOVA, P>0.05). CONCLUSION The present method is easily performed with high sensitivity, specificity and repeatability for circulatory H2S. It is also quick and may apply for large samples.
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Affiliation(s)
- Y L Feng
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - J H Fan
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - X J Lin
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - J C Yang
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences; Center for Noncoding RNA Medicine, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - Q H Cui
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences; Center for Noncoding RNA Medicine, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - X J Tang
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University School of Pharmaceutical Sciences, Beijing 100191, China
| | - G H Xu
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - B Geng
- Department of Physiology and Pathophysiology,Peking University School of Basic Medical Sciences; Center for Noncoding RNA Medicine, Peking University School of Basic Medical Sciences, Beijing 100191, China
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Wu M, Zhan J, Geng B, He P, Wu K, Wang L, Xu G, Li Z, Yin L, Pan D. Scalable synthesis of organic-soluble carbon quantum dots: superior optical properties in solvents, solids, and LEDs. Nanoscale 2017; 9:13195-13202. [PMID: 28853478 DOI: 10.1039/c7nr04718e] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Carbon quantum dots (CQDs) have attracted much attention owing to their unique optical properties and a wide range of applications. The fabrication and control of CQDs with organic solubility and long-wavelength emission are still urgent issues to be addressed for their practical use in LEDs. Here, organic-soluble CQDs were produced at a high yield of ∼90% by a facile solvent engineering treatment of 1,3,6-trinitropyrene, which were simultaneously used as the nitrogen and carbon sources. The optical properties of the organic-soluble CQDs (o-CQDs) were investigated in nonpolar and polar solvents, films, and LED devices. The CQDs have a narrow size distribution around 2.66 nm, and can be dispersed in different organic solvents. Significantly, the as-prepared CQDs present an excitation-independent emission at 607 nm with fluorescence quantum yields (QYs) up to 65.93% in toluene solution. A pronounced solvent effect was observed and their strong absorption bands can be tuned in the whole visible region (400-750 nm) by changing the solvent. The CQDs in various solvents can emit bright, excitation-independent, long-wavelength fluorescence (orange to red). Furthermore, benefiting from the unique oil-solution properties, the as-prepared CQDs can be processed in thin film and device forms to meet the requirements of various applications, such as phosphor-based white-light LEDs. The color coordinate for these CQD modified LEDs is realized at (0.32, 0.31), which is close to pure white light (0.33, 0.33).
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Affiliation(s)
- Minghong Wu
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
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Liu Y, Guo Y, Li M, Wang L, Geng B, Chen Z, Li Z, Pan D. A bionic strategy for addressing scale-span issues in all-carbon electrocatalytic systems. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wang L, Wu B, Li W, Li Z, Zhan J, Geng B, Wang S, Pan D, Wu M. Industrial production of ultra-stable sulfonated graphene quantum dots for Golgi apparatus imaging. J Mater Chem B 2017; 5:5355-5361. [PMID: 32264074 DOI: 10.1039/c7tb01348e] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The wide use of functionalized graphene quantum dots (GQDs) in stable dispersions is currently hampered by the lack of industrially scalable, low-cost, and eco-friendly methods. Herein we report the first realization of the industrial-scale (20 L) production of high-quality fluorescent GQDs via a molecular fusion route from a low-cost, active derivative of pyrene. By a wholly "green", conventional sulfonation reaction at low hydrothermal temperature, the molecular precursor is wholly converted into highly water-soluble, sulfonated GQDs without byproducts such as insoluble carbon. The GQDs show superior optical properties including strong excitonic absorption bands extended to ∼530 nm, bright photoluminescence (PL) at 510 nm with a quantum yield of up to 42%, and a wide PLE spectrum. The edge-site sulfonic functionalization enables the GQDs to stably re-disperse in water and maintains high fluorescence activities even after annealing up to 250 °C, whereas amino GQDs and graphene oxide sheets markedly aggregate after drying at low temperature. The GQDs are applied as biological fluorescent probes for visualizing and targeting Golgi apparatus in Hela and MCF7 live cells. The low-cost mass production, excellent biocompatibility, and superior optical properties make the GQDs an attractive alternative probe for efficient Golgi targeted imaging in biomedical applications.
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Affiliation(s)
- Liang Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, P. R. China
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Geng B, Yang D, Zheng F, Zhang C, Zhan J, Li Z, Pan D, Wang L. Facile conversion of coal tar to orange fluorescent carbon quantum dots and their composite encapsulated by liposomes for bioimaging. NEW J CHEM 2017. [DOI: 10.1039/c7nj03005c] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Our work has provided a way for the conversion of low-value coal tar into high-value fluorescent carbon materials.
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Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Dewen Yang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Fengfeng Zheng
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Chen Zhang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Jing Zhan
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Zhen Li
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Dengyu Pan
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology
- Shanghai University
- Shanghai 200444
- P. R. China
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Blinder MA, Geng B, Lisker-Melman M, Crippin JS, Korenblat K, Chapman W, Shenoy S, Field JJ. Successful orthotopic liver transplantation in an adult patient with sickle cell disease and review of the literature. Hematol Rep 2013; 5:1-4. [PMID: 23888237 PMCID: PMC3719104 DOI: 10.4081/hr.2013.e1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 09/10/2012] [Indexed: 02/06/2023] Open
Abstract
Sickle cell disease can lead to hepatic complications ranging from acute hepatic crises to chronic liver disease including intrahepatic cholestasis, and iron overload. Although uncommon, intrahepatic cholestasis may be severe and medical treatment of this complication is often ineffective. We report a case of a 37 year-old male patient with sickle cell anemia, who developed liver failure and underwent successful orthotopic liver transplantation. Both pre and post-operatively, he was maintained on red cell transfusions. He remains stable with improved liver function 42 months post transplant. The role for orthotopic liver transplantation is not well defined in patients with sickle cell disease, and the experience remains limited. Although considerable challenges of post-transplant graft complications remain, orthotopic liver transplantation should be considered as a treatment option for sickle cell disease patients with end-stage liver disease who have progressed despite conventional medical therapy. An extended period of red cell transfusion support may lessen the post-operative complications.
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Abstract
Novel peptide-based endothelin (ET) receptor antagonists were designed and synthesized in our laboratory. BQ-485, HIM-CO-Leu-d-Trp-d-Trp-OH, was selected as the leading compound. The primary structures of these new tripeptides were ABO-CO-Leu-d-Trp-d-AA(X)-OH. The introduction of unnatural aromatic amino acids into these tripeptides was useful in the structure-activity relationship studies. Among the 20 tripeptides, 16 of them showed high activities against the contraction of rat aortic smooth muscles induced by ET-1.
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Affiliation(s)
- J Dong
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
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Geng B, Cao T, Duan Y. [Predictive value of peripheral artery ultrasonography for coronary artery disease]. Zhonghua Yi Xue Za Zhi 2001; 81:651-4. [PMID: 11798941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To investigate the diagnostic value of peripheral artery ultrasonography for coronary atherosclerotic disease (CAD). METHODS Peripheral artery ultrasonography was conducted among 135 consecutive examinees of coronary arteriography before the CAG. The results of peripheral artery ultrasonography and of coronary arteriography were analyzed with Stepwise multiple regression analysis and Logistic regression. RESULTS The incidence of atherosclerotic plaques of carotid, subclavicular, abdominal aortic, iliac and femoral arteries in patients with positive coronary arteriography was significantly higher than that in the subjects with negative coronary arteriography (P < 0.01); Logistic regression indicated that the presence of atherosclerotic plaques in femoral, abdominal aortic, and common iliac arteries was significantly closely correlated with CAD (P < 0.005, < 0.01, and < 0.05 respectively). Stepwise multiple regression analysis showed that common iliac IMT and femoral IMT were significant closely associated with the severity of coronary atherosclerosis (P < 0.0001). For each increased 1mm of iliac and femoral IMT, the LOG (1 + Gensini's score) of coronary arteriography increased by 0.227 and 0.219 respectively. The carotid artery IMT was partly associated with the LOG (1 + Gensini's score) of coronary arteriography (P < 0.05). The total score of extracoronary atherosclerosis (TSEcAS) was significantly correlated with the occurrence and severity of CAD (P < 0.0001). For 1 more extracoronary atherosclerotic plaques, the odds ratio and LOG (1 + Gensini's scores) for CAD increased 4.98 times and 0.323 respectively. Common iliac atherosclerosis was closely correlated with the occurrence of acute myocardial infarction. The positive predictive value of femoral, iliac atherosclerosis is 87.9%, 86.7%, 80.0% respectively; the positive predictive value for 2 and 3 sites of 3 above sites and is 88.6% and 94.9% respectively. Accuracy of discriminative function for positive and negative results and total was 91.5%, 93.8% and 92.5% respectively. CONCLUSION EcAS is closely correlated with CAD. It is possible to predict the occurrence, development, extent and severity of coronary artery atherosclerosis by extracoronary atherosclerosis. Common iliac atherosclerosis and femoral atherosclerosis are two independent factors closely correlated with the occurrence and progression of coronary atherosclerosis and can be used as the alternative indicators in study of coronary atherosclerosis.
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Affiliation(s)
- B Geng
- Department of Ultrasound, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, China
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Zhang DS, Yin XQ, Zhang SZ, Wang PY, Yuan XL, Geng B, Sun SZ. [The effect of CO2 laser combined with chloroquini phosphate in the treatment of oral lichen planus: report of 80 cases]. Shanghai Kou Qiang Yi Xue 2000; 9:187-8. [PMID: 15014803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
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