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Liu S, Zhao Y, Li C, Yi Y, Zhang Y, Tian J, Han J, Pan C, Lu X, Su Y, Wang L, Liu C, Meng J, Liang A. Long-term oral administration of Kelisha capsule does not cause hepatorenal toxicity in rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118320. [PMID: 38740107 DOI: 10.1016/j.jep.2024.118320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kelisha capsules (KLS) are often used to treat acute diarrhoea, bacillary dysentery, heat stroke, and other diseases. One of its components, Asarum, contains aristolochic acid I which is both nephrotoxic and carcinogenic. However, the aristolochic acid (AA) content in KLS and its toxicity remain unclear. AIM OF THE STUDY The aims of this study were to quantitatively determine the contents of five aristolochic acid analogues (AAAs) in Asarum and KLS, and systematically evaluate the in vivo toxicity of KLS in rats. MATERIALS AND METHODS Ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to determine the content of the five AAAs in Asarum and KLS. Sprague-Dawley rats were administered KLS at 0, 0.75, 1.5, and 3.0 g/kg respectively, and then sacrificed after 4 weeks of administration or after an additional 2 weeks of recovery. The endpoints assessed included body weight measurements, serum biochemistry and haematology indices, and clinical and histopathological observations. RESULTS The AAAs content in Asarum sieboldii Miq. (HB-ESBJ) were much lower than those of the other Asarums. The contents of AA I, AA IVa, and aristolactam I in KLS were in the ranges of 0.03-0.06 μg/g, 1.89-2.16 μg/g, and 0.55-1.60 μg/g, respectively, whereas AA II and AA IIIa were not detected. None of the rats showed symptoms of toxic reactions and KLS was well tolerated throughout the study. Compared to the control group, the activated partial thromboplastin time values of rats in the 1.5 and 3.0 g/kg groups significantly reduced after administration (P < 0.05). In addition, the serum triglycerides of male rats in the 0.75 and 1.5 g/kg groups after administration, and the 0.75, 1.5, 3.0 g/kg groups after recovery were significantly decreased (P < 0.01 or P < 0.001). No significant drug-related toxicological changes were observed in other serum biochemical indices, haematology, or histopathology. CONCLUSIONS The AA I content in KLS met the limit requirements (<0.001%) of the Chinese Pharmacopoeia. Therefore, it is safe to use KLS in the short-term. However, for safety considerations, attention should be paid to the effects of long-term KLS administration on coagulation function and triglyceride metabolism.
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Affiliation(s)
- Suyan Liu
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yong Zhao
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chunying Li
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yan Yi
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yushi Zhang
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jingzhuo Tian
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jiayin Han
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chen Pan
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Xiao Lu
- Zhejiang Sukean Pharmaceutical CO.LTD, Hangzhou, 311228, China.
| | - Yan Su
- Zhejiang Sukean Pharmaceutical CO.LTD, Hangzhou, 311228, China.
| | - Lianmei Wang
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chenyue Liu
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jing Meng
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Aihua Liang
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Qu M, Chen J, Xu B, Shi Q, Zhao S, Wang Z, Li Z, Ma B, Xu H, Ye Q, Xie J. Assessing genotoxic effects of chemotherapy agents by a robust in vitro assay based on mass spectrometric quantification of γ-H2AX in HepG2 cells. Front Pharmacol 2024; 15:1356753. [PMID: 38962306 PMCID: PMC11219945 DOI: 10.3389/fphar.2024.1356753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 06/03/2024] [Indexed: 07/05/2024] Open
Abstract
Chemotherapy has already proven widely effective in treating cancer. Chemotherapeutic agents usually include DNA damaging agents and non-DNA damaging agents. Assessing genotoxic effect is significant during chemotherapy drug development, since the ability to attack DNA is the major concern for DNA damaging agents which relates to the therapeutic effect, meanwhile genotoxicity should also be evaluated for chemotherapy agents' safety especially for non-DNA damaging agents. However, currently applicability of in vitro genotoxicity assays is hampered by the fact that genotoxicity results have comparatively high false positive rates. γ-H2AX has been shown to be a bifunctional biomarker reflecting both DNA damage response and repair. Previously, we developed an in vitro genotoxicity assay based on γ-H2AX quantification using mass spectrometry. Here, we employed the assay to quantitatively assess the genotoxic effects of 34 classic chemotherapy agents in HepG2 cells. Results demonstrated that the evaluation of cellular γ-H2AX could be an effective approach to screen and distinguish types of action of different classes of chemotherapy agents. In addition, two crucial indexes of DNA repair kinetic curve, i.e., k (speed of γ-H2AX descending) and t50 (time required for γ-H2AX to drop to half of the maximum value) estimated by our developed online tools were employed to further evaluate nine representative chemotherapy agents, which showed a close association with therapeutic index or carcinogenic level. The present study demonstrated that mass spectrometric quantification of γ-H2AX may be an appropriate tool to preliminarily evaluate genotoxic effects of chemotherapy agents.
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Affiliation(s)
- Minmin Qu
- Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing, China
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jia Chen
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Bin Xu
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Qinyun Shi
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Shujing Zhao
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Zhaoxia Wang
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Zhi Li
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Bo Ma
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Hua Xu
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Qinong Ye
- Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing, China
| | - Jianwei Xie
- Beijing Institute of Pharmacology and Toxicology, Beijing, China
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Li CX, Xiao XH, Li XY, Xiao DK, Wang YK, Wang XL, Zhang P, Li YR, Niu M, Bai ZF. Stir-fried Semen Armeniacae Amarum Suppresses Aristolochic Acid I-Induced Nephrotoxicity and DNA Adducts. Chin J Integr Med 2024:10.1007/s11655-024-3809-2. [PMID: 38850483 DOI: 10.1007/s11655-024-3809-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVE To investigate the protective effects of stir-fried Semen Armeniacae Amarum (SAA) against aristolochic acid I (AAI)-induced nephrotoxicity and DNA adducts and elucidate the underlying mechanism involved for ensuring the safe use of Asari Radix et Rhizoma. METHODS In vitro, HEK293T cells overexpressing Flag-tagged multidrug resistance-associated protein 3 (MRP3) were constructed by Lentiviral transduction, and inhibitory effect of top 10 common pairs of medicinal herbs with Asari Radix et Rhizoma in clinic on MRP3 activity was verified using a self-constructed fluorescence screening system. The mRNA, protein expressions, and enzyme activity levels of NAD(P)H quinone dehydrogenase 1 (NQO1) and cytochrome P450 1A2 (CYP1A2) were measured in differentiated HepaRG cells. Hepatocyte toxicity after inhibition of AAI metabolite transport was detected using cell counting kit-8 assay. In vivo, C57BL/6 mice were randomly divided into 5 groups according to a random number table, including: control (1% sodium bicarbonate), AAI (10 mg/kg), stir-fried SAA (1.75 g/kg) and AAI + stir-fried SAA (1.75 and 8.75 g/kg) groups, 6 mice in each group. After 7 days of continuous gavage administration, liver and kidney damages were assessed, and the protein expressions and enzyme activity of liver metabolic enzymes NQO1 and CYP1A2 were determined simultaneously. RESULTS In vivo, combination of 1.75 g/kg SAA and 10 mg/kg AAI suppressed AAI-induced nephrotoxicity and reduced dA-ALI formation by 26.7%, and these detoxification effects in a dose-dependent manner (P<0.01). Mechanistically, SAA inhibited MRP3 transport in vitro, downregulated NQO1 expression in vivo, increased CYP1A2 expression and enzymatic activity in vitro and in vivo, respectively (P<0.05 or P<0.01). Notably, SAA also reduced AAI-induced hepatotoxicity throughout the detoxification process, as indicated by a 41.3% reduction in the number of liver adducts (P<0.01). CONCLUSIONS Stir-fried SAA is a novel drug candidate for the suppression of AAI-induced liver and kidney damages. The protective mechanism may be closely related to the regulation of transporters and metabolic enzymes.
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Affiliation(s)
- Cheng-Xian Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
| | - Xiao-He Xiao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
- National Key Laboratory of Kidney, Beijing, 100039, China
| | - Xin-Yu Li
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Da-Ke Xiao
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yin-Kang Wang
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Xian-Ling Wang
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China
| | - Ping Zhang
- Department of Pharmacy, Medical Supplies Center of PLA General Hospital, Beijing, 100039, China
| | - Yu-Rong Li
- Department of Military Patient Management, the Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Ming Niu
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100071, China
| | - Zhao-Fang Bai
- Department of Hepatology, Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, 100039, China.
- National Key Laboratory of Kidney, Beijing, 100039, China.
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Dang M, Wu L, Jin G, Yang C, Isah MB, Zhang X. Quantum Dot-Based Immunoassays: Unraveling Sensitivity Discrepancies and Charting Future Frontiers. Anal Chem 2024; 96:980-984. [PMID: 38194441 DOI: 10.1021/acs.analchem.3c04791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
The 2023 Nobel Prize in Chemistry honors the groundbreaking contributions of Alexei Ekimov, Louis Brus, and Moungi Bawendi to the field of quantum dots (QDs). In this spirit, we developed a direct competitive QD fluorescence immunoassay (dc-QD-FLISA) to detect aristolochic acid type I (AAI), a potent carcinogen found in herbal remedies. Unexpectedly, the dc-QD-FLISA exhibited lower sensitivity than that of an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA), contrary to our initial expectations. This discrepancy in the sensitivity prompted a comprehensive analysis of the entire experimental process. We propose that steric hindrance between QDs and antigen-binding sites on antibodies may significantly diminish the binding efficiency, reducing sensitivity within the dc-QD-FLISA method. Furthermore, issues such as buffer conditions, antibody handling, and separation methods are also contributing factors. We recommend site-directed QD modification and stringent consideration of the experimental conditions. This study not only provides insights into QD-based immunoassays but also highlights the need for future advancements in immunoassay technology in terms of augmenting sensitivity and specificity, potentially revolutionizing disease diagnosis, biomarker discovery, and biomedical research.
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Affiliation(s)
- Mei Dang
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 10 Keng Ridge Crescent, 119260 Singapore
| | - Longjiang Wu
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Gelin Jin
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Chenxuan Yang
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Murtala Bindawa Isah
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Xiaoying Zhang
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, N1G 2W1 Guelph, Ontario, Canada
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Chiang SY, Wey MT, Luo YS, Shih WC, Chimeddulam D, Hsu PC, Huang HF, Tsai TH, Wu KY. Simultaneous toxicokinetic studies of aristolochic acid I and II and aristolactam I and II using a newly-developed microdialysis liquid chromatography-tandem mass spectrometry. Food Chem Toxicol 2023; 177:113856. [PMID: 37257633 DOI: 10.1016/j.fct.2023.113856] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/06/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
Aristolochic acids (AAs) are naturally occurring genotoxic carcinogens linked to Balkan endemic nephropathy and aristolochic acid nephropathy. Aristolochic acid I and II (AA-I and AA-II) are the most abundant AAs, and AA-I has been reported to be more genotoxic and nephrotoxic than AA-II. This study aimed to explore metabolic differences underlying the differential toxicity. We developed a novel microdialysis sampling coupled with solid-phase extraction liquid chromatography-tandem mass spectrometry (MD-SPE-LC-MS/MS) to simultaneously study the toxicokinetics (TK) of AA-I and AA-II and their corresponding aristolactams (AL-I and AL-II) in the blood of Sprague Dawley rats co-treated with AA-1 and AA-II. Near real-time monitoring of these analytes in the blood of treated rats revealed that AA-I was absorbed, distributed, and eliminated more rapidly than AA-II. Moreover, the metabolism efficiency of AA-I to AL-I was higher compared to AA-II to AL-II. Only 0.58% of AA-I and 0.084% of AA-II was reduced to AL-I and AL-II, respectively. The findings are consistent with previous studies and support the contention that differences in the in vivo metabolism of AA-I and AA-II may be critical factors for their differential toxicities.
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Affiliation(s)
- Su-Yin Chiang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Rd, North Dist., Taichung, 404333, Taiwan
| | - Ming-Tsai Wey
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 100025, Taiwan
| | - Yu-Syuan Luo
- Institute of Food and Health, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 404333, Taiwan
| | - Wei-Chung Shih
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 100025, Taiwan
| | - Dalaijamts Chimeddulam
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 100025, Taiwan
| | - Po-Chi Hsu
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Rd, North Dist., Taichung, 404333, Taiwan
| | - Hui-Fen Huang
- School of Post-baccalaureate Chinese Medicine, Tzu Chi University, Hualien, 97004, Taiwan
| | - Tung-Hu Tsai
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2. Linong St., Taipei, 100147, Taiwan
| | - Kuen-Yuh Wu
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 100025, Taiwan; Institute of Food and Health, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 404333, Taiwan; Department of Public Health, College of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Zhongzheng Dist., Taipei, 100025, Taiwan.
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Zhao H, Qu M, Li Y, Wen K, Xu H, Song M, Xie D, Ao X, Gong Y, Sui L, Guan H, Zhou P, Xie J. An estimate assay for low-level exposure to ionizing radiation based on mass spectrometry quantification of γ-H2AX in human peripheral blood lymphocytes. Front Public Health 2022; 10:1031743. [PMID: 36388350 PMCID: PMC9651621 DOI: 10.3389/fpubh.2022.1031743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/14/2022] [Indexed: 01/29/2023] Open
Abstract
Exposure to environmental ionizing radiation (IR) is ubiquitous, and large-dose exposure to IR is known to cause DNA damage and genotoxicity which is associated with an increased risk of cancer. Whether such detrimental effects are caused by exposure to low-dose IR is still debated. Therefore, rapid and early estimation of absorbed doses of IR in individuals, especially at low levels, using radiation response markers is a pivotal step for early triage during radiological incidents to provide adequate and timely clinical interventions. However, there is currently a crucial shortage of methods capable of determining the extent of low-dose IR exposure to human beings. The phosphorylation of histone H2AX on serine 139 (designated γ-H2AX), a classic biological dosimeter, can be used to evaluate the DNA damage response. We have developed an estimation assay for low-level exposure to IR based on the mass spectrometry quantification of γ-H2AX in blood. Human peripheral blood lymphocytes sensitive to low-dose IR, maintaining low temperature (4°C) and adding enzyme inhibitor are proven to be key steps, possibly insuring that a stable and marked γ-H2AX signal in blood cells exposed to low-dose IR could be detected. For the first time, DNA damage at low dose exposures to IR as low as 0.01 Gy were observed using the sensitive variation of γ-H2AX with high throughput mass spectrometry quantification in human peripheral blood, which is more accurate than the previously reported methods by virtue of isotope-dilution mass spectrometry, and can observe the time effect of DNA damage. These in vitro cellular dynamic monitoring experiments show that DNA damage occurred rapidly and then was repaired slowly over the passage of post-irradiation time even after exposure to very low IR doses. This assay was also used to assess different radiation exposures at the in vitro cellular level. These results demonstrate the potential utility of this assay in radiation biodosimetry and environmental risk assessment.
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Affiliation(s)
- Hongling Zhao
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Minmin Qu
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Beijing, China
| | - Yuchen Li
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ke Wen
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Hua Xu
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Beijing, China
| | - Man Song
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Dafei Xie
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xingkun Ao
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yihao Gong
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, China
| | - Li Sui
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, China
| | - Hua Guan
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China,*Correspondence: Hua Guan
| | - Pingkun Zhou
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China,Pingkun Zhou
| | - Jianwei Xie
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Beijing, China,Jianwei Xie
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Effect of Nanoparticles of DOX and miR-125b on DNA Damage Repair in Glioma U251 Cells and Underlying Mechanisms. Molecules 2022; 27:molecules27196201. [PMID: 36234731 PMCID: PMC9573026 DOI: 10.3390/molecules27196201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Abstract
Glioma is the most common primary craniocerebral malignant tumor, arising from the canceration of glial cells in the brain and spinal cord. The quality of life and prognosis of patients with this disease are still poor. Doxorubicin (DOX) is one of the most traditional and economical chemotherapeutic drugs for the treatment of glioma, but its toxic effect on normal cells and the resistance of tumor cells to DOX make the application of DOX in the treatment of glioma gradually less effective. To solve this problem, we co-encapsulated DOX and endogenous tumor suppressor miR-125b into nanoparticles (NPs) by nanoprecipitation methods, and passively targeted them into glioma cells. In vitro experiments show that miR-125b and DOX can be effectively encapsulated into nanoparticles with different ratios, and by targeting YES proto-oncogene 1 (YES1), they can affect the adenosine 5′-monophosphate (AMP)-activated protein kinase (AMPK)/p53 pathway and induce brain glioma cell apoptosis. They can also affect the DNA damage repair process and inhibit cell proliferation. The obtained data suggest that co-delivery of DOX and miR-125b could achieve synergistic effects on tumor suppression. Nanosystem-based co-delivery of tumor suppressive miRNAs and chemotherapeutic agents may be a promising combined therapeutic strategy for enhanced anti-tumor therapy.
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