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Wang H, Zhao JF, Zhu XL, Tian QQ, He W. Photoinduced Borylation of the Inert C(sp 3)-O Bond of Alkyl Heteroaryl Ethers. Org Lett 2023; 25:6485-6489. [PMID: 37668383 DOI: 10.1021/acs.orglett.3c02038] [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: 09/06/2023]
Abstract
A photoinduced reductive Calkyl-O borylation of alkyl heteroaryl ethers with very negative reduction potential in the presence of 4-dimethylaminopyridine (DMAP) and bis(catecholato)diborane(B2cat2) was developed. Despite the high reducing power, various substrates with liable functional groups were well-tolerated as well as ethers derived from natural products and medicinal-relevant compounds. Mechanistic investigation implied that an intra-single electron transfer process in an electron donor-acceptor complex formed from ethers with the adduct of B2cat2 and DMAP should be involved.
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Affiliation(s)
- Hua Wang
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, People's Republic of China
| | - Jing-Feng Zhao
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, People's Republic of China
| | - Xing-Li Zhu
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, People's Republic of China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, People's Republic of China
| | - Wei He
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi 710032, People's Republic of China
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2
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Lan T, Ji N, Tian QQ, Zhan Y, He W. An edoplasmic reticulum-targeted NIR fluorescent probe with a large Stokes shift for hypoxia imaging. Spectrochim Acta A Mol Biomol Spectrosc 2023; 288:122201. [PMID: 36463622 DOI: 10.1016/j.saa.2022.122201] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/28/2022] [Revised: 11/21/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Hypoxia is closely linked to various diseases, including solid tumors. The level of nitroreductase (NTR) is usually abnormally upregulated in hypoxic conditions, which can be a biomarker of hypoxia. Herein, the first endoplasmic reticulum-targeting NIR fluorescent probe, ISO-NTR, was developed for highly selective and sensitive detection of NTR. It shows a large Stokes shift (185 nm) and a 5-fold increases in fluorescence intensity. Meanwhile, the ISO-NTR probe with a dicyanoisophorone derivative has excellent endoplasmic reticulum targeting in living systems with high Pearson's correlation coefficients (Rr = 0.9489). Molecular docking calculations and high binding energy between the probe and NTR (-10.78 kcal·mol-1) may explain the high selectivity of ISO-NTR. Additionally, it has been successfully applied to NTR imaging in vitro and vivo due to its good sensitivity, high selectivity and large Stokes shift, which may provide an effective method for studying the physiological and pathological functions of NTR in living systems. This probe could be developed as a potential imaging tool to further explore the pathogenesis of hypoxia-related diseases in endoplasmic reticulum stress.
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Affiliation(s)
- Ting Lan
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China
| | - Nan Ji
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China
| | - Yu Zhan
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China.
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3
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Yang QQ, Tian QQ, Ji N, Duan XH, Zhu XH, Zhang YL, He W. A novel fluorescent probe for the detection of sulfur dioxide derivatives and its application in biological imaging. NEW J CHEM 2022. [DOI: 10.1039/d1nj03184h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new probe CA-SO2 to efficiently and specifically detect SO2 was designed. The probe showed a fast response time (<50 s), low detection limit (LOD = 75 nM), large Stokes shift (129 nm) and was applied to detect SO2 in living cells and zebrafish.
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Affiliation(s)
- Qing-Qing Yang
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Nan Ji
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Xiao-Hong Duan
- State Key Laboratory of Military Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032, China
| | - Xiao-Hong Zhu
- Shaanxi Institute for Food and Drug Control, Xi’an, 710065, China
| | - Yan-Li Zhang
- State Key Laboratory of Military Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032, China
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
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4
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Yang QQ, Ji N, Zhan Y, Tian QQ, Cai ZD, Lu XL, He W. Rational design of a new near-infrared fluorophore and apply to the detection and imaging study of cysteine and thiophenol. Anal Chim Acta 2021; 1186:339116. [PMID: 34756262 DOI: 10.1016/j.aca.2021.339116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/03/2021] [Revised: 09/18/2021] [Accepted: 09/24/2021] [Indexed: 12/23/2022]
Abstract
The development of a near-infrared fluorophore with excellent fluorescence performance, a large Stokes shift, and good biocompatibility has become a focus in the field of fluorescence imaging in recent years. Based on quantum chemistry calculations and reasonable molecular design strategies, a new NIR fluorophore was developed and characterized by simple synthesis, easy structural modification, and a large Stokes shift (105 nm). Furthermore, two new "activatable" fluorescent probes QN-Cys and QN-DNP were synthesized using a simple structural modification. The probe QN-Cys can recognize Cys with high sensitivity (LOD = 128 nM) and high selectivity, and its fluorescence intensity has a good linear relationship with the Cys concentration in the range of 5-35 μM. Furthermore, probe QN-Cys can effectively distinguish Cys from Hcy and GSH, and was successfully applied to the detection and imaging of Cys in human serum, cells, and zebrafish. The probe QN-DNP showed a good specific and sensitive (LOD = 78 nM) fluorescence response to thiophenol, and its fluorescence intensity has a good linear relationship with the thiophenol concentration in the range of 5-30 μM. Furthermore, it was successfully applied to detect thiophenol in real water samples with good recoveries (97-102%), and image thiophenol in living cells, zebrafish and mice. Notebly, the QN-DNP probe could be applied to visualize the distribution of thiophenol in the mice.
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Affiliation(s)
- Qing-Qing Yang
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China
| | - Nan Ji
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China
| | - Yu Zhan
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China
| | - Ze-Dong Cai
- Department of Pharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, PR China
| | - Xian-Lin Lu
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, PR China.
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5
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Abstract
A one-step protocol of the aryl iodine-catalyzed aminolactonization of unactivated alkenes under oxidation conditions was first reported to efficiently construct diverse amino lactones in a short time using HNTs2 as the compatible nitrogen source. In addition, we investigated the influence of the reaction rate based on the structure of the iodoarene precatalyst, which revealed the selective adjustment effect on aminolactonization and oxylactonization. Finally, preliminary experiments verified the feasibility of asymmetric aminolactonization catalyzed by a chiral iodoarene precatalyst.
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Affiliation(s)
- Lu-Wen Zhang
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, China
| | - Xiao-Jun Deng
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, China
| | - Dong-Xu Zhang
- Department of Medicinal Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, China
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, 710032, China
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6
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Sun T, Luo L, Tian QQ, Wang WJ, Liu QQ, Yang L, Zhang K, Zhang W, Zhao MG, Yang Q. Anxiolytic Effects of 8-O-Acetyl Shanzhiside Methylester on Acute and Chronic Anxiety via Inflammatory Response Inhibition and Excitatory/Inhibitory Transmission Imbalance. Neurotox Res 2020; 38:979-991. [PMID: 32367473 PMCID: PMC7591445 DOI: 10.1007/s12640-020-00203-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/24/2020] [Accepted: 04/07/2020] [Indexed: 02/06/2023]
Abstract
Anxiety leads to a global decline in quality of life and increase in social burden. However, treatments are limited, because the molecular mechanisms underlying complex emotional disorders are poorly understood. We explored the anxiolytic effects of 8-O-acetyl shanzhiside methylester (8-OaS), an active component in Lamiophlomis rotata (L. rotata; Benth.) or Kudo, a traditional herb that has been shown to be effective in the clinical treatment of chronic pain syndromes in China. Two mouse anxiety models were used: forced swimming stress (FSS)–induced anxiety and complete Freund’s adjuvant (CFA)–induced chronic inflammatory pain. All animal behaviors were analyzed on the elevated plus maze and in the open-field test. 8-OaS significantly ameliorated anxiety-like behaviors in both anxiety models and inhibited the translation enhancement of GluN2A, GluN2B, and PSD95. Moreover, a reduction in GABA receptors disrupted the excitatory/inhibitory (E/I) balance in the basolateral amygdala (BLA), indicated by increased excitatory and decreased inhibitory presynaptic release. 8-OaS also blocked microglia activation and reduced the phosphorylation of p38, c-Jun N-terminal kinase (JNK), NF-κB p65, and tumor necrosis factor alpha (TNF-α) in the BLA of anxiety mice. 8-OaS exhibits obvious anxiolytic effects by regulating the excitatory/inhibitory (E/I) synaptic transmission and attenuating inflammatory responses in the BLA.
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Affiliation(s)
- Ting Sun
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China
| | - Li Luo
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, the Fourth Military Medical University, Xi'an, 710032, China
| | - Wen-Ju Wang
- Student Brigade, the Fourth Military Medical University, Xi'an, 710032, China
| | - Qing-Qing Liu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China
| | - Le Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China
| | - Kun Zhang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China
| | - Wei Zhang
- Department of Pharmacy, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032, China
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China.
| | - Qi Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, People's Republic of China.
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Luo L, Sun T, Yang L, Liu A, Liu QQ, Tian QQ, Wang Y, Zhao MG, Yang Q. Scopoletin ameliorates anxiety-like behaviors in complete Freund's adjuvant-induced mouse model. Mol Brain 2020; 13:15. [PMID: 32019580 PMCID: PMC7001522 DOI: 10.1186/s13041-020-0560-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/23/2020] [Indexed: 12/20/2022] Open
Abstract
Anxiety disorder is highly prevalent worldwide and represents a chronic and functionally disabling condition, with high levels of psychological stress characterized by cognitive and physiological symptoms. Scopoletin (SP), a main active compound in Angelica dahurica, is traditionally used for the treatment of headache, rhinitis, pain, and other conditions. Here, we evaluated the effects of SP in a mouse model of complete Freund’s adjuvant (CFA)-induced chronic inflammation anxiety. SP (2.0, 10.0, 50.0 mg/kg) administration for 2 weeks dose-dependently ameliorated CFA-induced anxiety-like behaviors in the open field test and elevated plus maze test. Moreover, we found that SP treatment inhibited microglia activation and decreased both peripheral and central IL-1β, IL-6, and TNF-α levels in a dose-dependent manner. Additionally, the imbalance in excitatory/inhibitory receptors and neurotransmitters in the basolateral nucleus after CFA injection was also modulated by SP administration. Our findings indicate that the inhibition of the nuclear factor-kappa B and mitogen-activated protein kinase signaling pathways involving anti-inflammatory activities and regulation of the excitatory/inhibitory balance can be attributed to the anxiolytic effects of SP. Moreover, our molecular docking analyses show that SP also has good affinity for gamma-aminobutyric acid (GABA) transaminase and GABAA receptors. Therefore, these results suggest that SP could be a candidate compound for anxiolytic therapy and for use as a structural base for developing new drugs.
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Affiliation(s)
- Li Luo
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Ting Sun
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Le Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - An Liu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Qing-Qing Liu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Yan Wang
- Department of Gastroenterology and Endoscopy Center, No. 986 Hospital, Fourth Military Medical University, Xi'an, 710054, China
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.
| | - Qi Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.
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8
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Cao ZX, Xiao GA, Zhang W, Ji J, Ye C, Liu D, Tian QQ, Prof YHS. Comprehensive investigation of alternative splicing and development of a prognostic risk score for prostate cancer based on six-gene signatures. J Cancer 2019; 10:5585-5596. [PMID: 31632503 PMCID: PMC6775697 DOI: 10.7150/jca.31725] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/22/2018] [Accepted: 05/30/2019] [Indexed: 01/08/2023] Open
Abstract
Purpose: To systematically document alternative splicing profiles of prostate cancer in relatively large populations in order to construct a prognostic predictors model for prostate cancer. Methods: Splicing data and clinical information of 495 prostate cancer patients were obtained from The Cancer Genome Atlas (TCGA). The SpliceSeq database was used to extract information regarding splicing events. Multiple bioinformatic tools were used for functional and pathway enrichment analysis as well as for construction of gene interaction networks. Candidate gene expression profiles were verified with clinical samples using QRT-PCR. Results: We detected a total of 44070 alternative splicing events of 10381 genes in prostate cancer. 7 and 14 KEGG pathways were enriched and were associated with overall and recurrence-free survival, respectively. The expression of 396 genes among the 1526 overall survival genes associated alternative splicing events were associated with overall survival. The expression of 483 genes among the 1916 recurrence-free survival genes associated alternative splicing events were associated with recurrence-free survival. Lastly, we constructed the prognosis risk score system based on the expression profiles of six-gene signatures which in combination had an AUC of 0.941 for overall survival associated alternative splicing events, followed by overall survival associated gene expressions with an AUC of 0.794, a recurrence-free survival associated gene expression with an AUC of 0.752 and recurrence-free survival associated alternative splicing events with an AUC of 0.735, indicating its strong ability to predict patient outcome. The expression profile of the six genes was also confirmed in different prostate cell lines and clinic samples. Conclusion: Our comprehensive investigation of alternative splicing not only provided insight into the biological pathways of alternative splicing involved in the development of prostate cancer but also revealed new potential biomarkers for prognosticating as well as novel therapeutic targets for development of prostate cancer treatment.
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Affiliation(s)
- Zhe-Xu Cao
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Guang-An Xiao
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Wei Zhang
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Jin Ji
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Chen Ye
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Dan Liu
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Qin-Qin Tian
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Ying-Hao Sun Prof
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.,Shanghai Key Laboratory of Cell Engineering, Naval Medical University (Second Military Medical University), Shanghai 200433, China
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Wang KJ, Wang C, Dai LH, Yang J, Huang H, Ma XJ, Zhou Z, Yang ZY, Xu WD, Hua MM, Lu X, Zeng SX, Wang HQ, Zhang ZS, Cheng YQ, Liu D, Tian QQ, Sun YH, Xu CL. Targeting an Autocrine Regulatory Loop in Cancer Stem-like Cells Impairs the Progression and Chemotherapy Resistance of Bladder Cancer. Clin Cancer Res 2018; 25:1070-1086. [PMID: 30397177 DOI: 10.1158/1078-0432.ccr-18-0586] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/15/2018] [Accepted: 11/01/2018] [Indexed: 11/16/2022]
Abstract
PURPOSE Cancer stem-like cells (CSCs) contribute to bladder cancer chemotherapy resistance and progression, but the associated mechanisms have not been elucidated. This study determined whether blocking an autocrine signaling loop in CSCs improves the therapeutic effects of cis-platinum on bladder cancer. EXPERIMENTAL DESIGN The expression of the epithelial marker OV6 and other markers in human bladder cancer specimens was examined by IHC. The CSC properties of magnetic-activated cell sorting (MACS)-isolated OV6+ and OV6- bladder cancer cells were examined. Molecular mechanisms were assessed through RNA-Seq, cytokine antibody arrays, co-immunoprecipitation (co-IP), chromatin immunoprecipitation (ChIP) and other assays. An orthotopic bladder cancer mouse model was established to evaluate the in vivo effects of a YAP inhibitor (verteporfin) and a PDGFR inhibitor (CP-673451) on the cis-platinum resistance of OV6+ CSCs in bladder cancer. RESULTS Upregulated OV6 expression positively associated with disease progression and poor prognosis for bladder cancer patients. Compared with OV6- cells, OV6+ bladder cancer cells exhibited strong CSC characteristics, including self-renewal, tumor initiation in NOD/SCID mice, and chemotherapy resistance. YAP, which maintains the stemness of OV6+ CSCs, triggered PDGFB transcription by recruiting TEAD1. Autocrine PDGF-BB signaling through its receptor PDGFR stabilized YAP and facilitated YAP nuclear translocation. Furthermore, blocking the YAP/TEAD1/PDGF-BB/PDGFR loop with verteporfin or CP-673451 inhibited the cis-platinum resistance of OV6+ bladder cancer CSCs in an orthotopic bladder cancer model. CONCLUSIONS OV6 could be a helpful indicator of disease progression and prognosis for patients with bladder cancer, and targeting the autocrine YAP/TEAD1/PDGF-BB/PDGFR loop might serve as a remedy for cis-platinum resistance in patients with advanced bladder cancer.
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Affiliation(s)
- Kai-Jian Wang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Chao Wang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Li-He Dai
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Jun Yang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Hai Huang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Xiao-Jing Ma
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York
| | - Zhe Zhou
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Ze-Yu Yang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Wei-Dong Xu
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Mei-Mian Hua
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Xin Lu
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Shu-Xiong Zeng
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Hui-Qing Wang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Zhen-Sheng Zhang
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Yan-Qiong Cheng
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Dan Liu
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Qin-Qin Tian
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Ying-Hao Sun
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China.
| | - Chuan-Liang Xu
- Department of Urology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China.
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10
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Huang H, Wang C, Liu F, Li HZ, Peng G, Gao X, Dong KQ, Wang HR, Kong DP, Qu M, Dai LH, Wang KJ, Zhou Z, Yang J, Yang ZY, Cheng YQ, Tian QQ, Liu D, Xu CL, Xu DF, Cui XG, Sun YH. Reciprocal Network between Cancer Stem-Like Cells and Macrophages Facilitates the Progression and Androgen Deprivation Therapy Resistance of Prostate Cancer. Clin Cancer Res 2018; 24:4612-4626. [PMID: 29691294 DOI: 10.1158/1078-0432.ccr-18-0461] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/03/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Cancer stem-like cells (CSC) contribute to the progression and androgen deprivation therapy (ADT) resistance of prostate cancer. As CSCs depend on their specific niche, including tumor-associated macrophages (TAM), elucidating the network between CSCs and TAMs may help to effectively inhibit the progression and ADT resistance of prostate cancer.Experimental Design: The underlying intracellular mechanism that sustains the stem-like characteristics of CSCs in prostate cancer was assessed via RNA sequencing, co-immunoprecipitation, chromatin immunoprecipitation, and other assays. A coculture system and cytokine antibody arrays were used to examine the interaction network between CSCs and TAMs. In addition, an orthotopic prostate cancer model was established to evaluate the in vivo effects of the combined targeting of CSCs and their interaction with TAMs on ADT resistance.Results: Autophagy-related gene 7 (ATG7) facilitated the transcription of OCT4 via β-catenin, which binds to the OCT4 promoter, promoting CSC characteristics in prostate cancer, including self-renewal, tumor initiation, and drug resistance. In addition, CSCs remodeled their specific niche by educating monocytes/macrophages toward TAMs, and the CSC-educated TAMs reciprocally promoted the stem-like properties of CSCs, progression and ADT resistance of prostate cancer via IL6/STAT3. Furthermore, the combined targeting of CSCs and their interaction with TAMs by inhibiting ATG7/OCT4 and IL6 receptor effectively ameliorated ADT resistance in an orthotopic prostate cancer model.Conclusions: Targeting CSCs and their niche may prove to be a more powerful strategy than targeting CSCs alone, providing a rational approach to ameliorating ADT resistance in prostate cancer. Clin Cancer Res; 24(18); 4612-26. ©2018 AACR.
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Affiliation(s)
- Hai Huang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Chao Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Fei Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hui-Zhen Li
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Guang Peng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xu Gao
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ke-Qin Dong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hong-Ru Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - De-Pei Kong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Min Qu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Li-He Dai
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Kai-Jian Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhe Zhou
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jun Yang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ze-Yu Yang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yan-Qiong Cheng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qin-Qin Tian
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Chuan-Liang Xu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan-Feng Xu
- Department of Urinary Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xin-Gang Cui
- Department of Urinary Surgery, The Third Affiliated Hospital of Second Military Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, China.
- Department of Urinary Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Ying-Hao Sun
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China.
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11
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Yuan JN, Liu HX, Tian QQ, Ji N, Shen K, He W. Highly Enantioselective Michael Addition of Dithiomalonates to Nitroolefins Catalyzed by New Bifunctional Chiral Thioureas. SYNTHESIS-STUTTGART 2018. [DOI: 10.1055/s-0036-1591987] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We report a highly efficient asymmetric Michael addition of dithiomalonates to trans-β-nitroolefins catalyzed by versatile cinchona-based bifunctional thioureas, which provides the corresponding adducts in high yields (up to 92%) and with excellent enantioselectivities (up to 99% ee) under mild conditions. Replacement of the catalyst with its pseudo-enantiomer gives the Michael adducts with opposite configuration in similar yields and enantioselectivities.
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Affiliation(s)
- Jia-Ni Yuan
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
| | - Hui-Xia Liu
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
| | - Nan Ji
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
| | - Kuo Shen
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University
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12
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Sun T, Li YJ, Tian QQ, Wu Q, Feng D, Xue Z, Guo YY, Yang L, Zhang K, Zhao MG, Wu YM. Activation of liver X receptor β-enhancing neurogenesis ameliorates cognitive impairment induced by chronic cerebral hypoperfusion. Exp Neurol 2018; 304:21-29. [PMID: 29447944 DOI: 10.1016/j.expneurol.2018.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 01/03/2018] [Revised: 02/05/2018] [Accepted: 02/09/2018] [Indexed: 10/18/2022]
Abstract
Chronic cerebral hypoperfusion (CCH), a leading cause of various cerebrovascular diseases, leads to cognitive dysfunction due to neuron loss and impaired neurogenesis. Liver X receptors (LXRs), including LXRα and LXRβ isoforms, are crucial for cholesterol metabolism, synaptic plasticity as well as neurogenesis. However, it is not clear the potential roles of LXRs in the pathogenesis of cognitive impairment induced by CCH. In this study, we demonstrated that LXRβ expression decreased in hippocampus of CCH mice. GW3965, a synthetic dual agonist for both LXRα and LXRβ, ameliorated impairment of learning and memory in CCH mice by promoting neuronal survival and neural stem cells (NSCs) proliferation in dentate gyrus (DG) of CCH mice. The proliferative effects of GW3965 were further confirmed in cultured neural progenitor cells (NPCs) and showed in a concentration-dependent manner. Moreover, GW3965 phosphorylated protein kinase B (Akt) at Ser473 in a time- and concentration-dependent manner in NPCs. Furthermore, both LY294002, an inhibitor for phosphoinositide-3-kinase (PI3K), and short hairpin RNAs for LXRβ knockdown, abrogated GW3965-induced Akt phosphorylation, and therefore abolished GW3965-mediated proliferation-promoting of NPCs. All the data suggested that GW3965 ameliorated impaired cognitive functions in CCH by promoting NSC proliferation through PI3K/Akt pathway followed LXRβ activation. This study correlates a deficit of LXRβ in cognitive dysfunction in CCH with impaired neurogenesis in hippocampus, and LXRs may serve as a potential therapeutic target for chronic cerebral ischemia.
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Affiliation(s)
- Ting Sun
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China; Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Yu-Jiao Li
- Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Qin-Qin Tian
- Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Qi Wu
- Student Brigade, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Dan Feng
- Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Zhe Xue
- Student Brigade, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Yan-Yan Guo
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China; Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Le Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China; Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Kun Zhang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China; Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China
| | - Yu-Mei Wu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi Province, PR China; Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, PR China.
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13
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Wang C, Peng G, Huang H, Liu F, Kong DP, Dong KQ, Dai LH, Zhou Z, Wang KJ, Yang J, Cheng YQ, Gao X, Qu M, Wang HR, Zhu F, Tian QQ, Liu D, Cao L, Cui XG, Xu CL, Xu DF, Sun YH. Blocking the Feedback Loop between Neuroendocrine Differentiation and Macrophages Improves the Therapeutic Effects of Enzalutamide (MDV3100) on Prostate Cancer. Clin Cancer Res 2017; 24:708-723. [PMID: 29191973 DOI: 10.1158/1078-0432.ccr-17-2446] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/22/2017] [Accepted: 11/20/2017] [Indexed: 11/16/2022]
Affiliation(s)
- Chao Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Guang Peng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hai Huang
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Fei Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - De-Pei Kong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ke-Qin Dong
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Li-He Dai
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhe Zhou
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Kai-Jian Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jun Yang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yan-Qiong Cheng
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xu Gao
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Min Qu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hong-Ru Wang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Feng Zhu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qin-Qin Tian
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan Liu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Li Cao
- Institute of Neuroscience and Key Laboratory of Molecular Neurobiology of the Ministry of Education, Second Military Medical University, Shanghai, China
| | - Xin-Gang Cui
- Department of Urinary Surgery, Third Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Chuan-Liang Xu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dan-Feng Xu
- Department of Urinary Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Ying-Hao Sun
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China.
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14
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Luo KX, Tian QQ. [HBsAg/PRE-S2 expression of viral replication and hepatic inflammation in chronic hepatitis B virus infection]. Zhonghua Nei Ke Za Zhi 1989; 28:199-201, 250. [PMID: 2805954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A close relationship (r = 0.186, P less than 0.025) was found between the serologic level of HBsAg/pre-S2, an envelope protein of hepatitis B virus, and the level of viral replication expressed by HBeAg. The rate of co-appearance and co-absence of both pre-S2 and HBeAg was 75.0%. Among HBeAg-positive cases, the prevalence of pre-S2 and its serologic level were significantly higher during exacerbation than resolution of chronic active hepatitis (73.3 vs 33.3%, 111.4 vs 1.4 ng/ml), and also higher than those among HBeAg-negative cases. Those the prevalence and the level were also higher in chronic active hepatitis than in chronic asymptomatic carriers (26.9 vs 11.5%, 2.95 vs 0.49 ng/ml). Pre-S2 prevalence in the group with highest scoring of histological activity was significantly higher than that in the groups with lower scoring (88.9 vs 40.0 and 36.4%) and the serologic level of pre-S2 also increased along with the scoring. Those data suggest that pre-S2 was associated with hepatic inflammatory activity as well.
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