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Aumann WK, Kazi R, Harrington AM, Wechsler DS. Novel-and Not So Novel-Inhibitors of the Multifunctional CRM1 Protein. Oncol Rev 2024; 18:1427497. [PMID: 39161560 PMCID: PMC11330842 DOI: 10.3389/or.2024.1427497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/16/2024] [Indexed: 08/21/2024] Open
Abstract
Chromosome Region Maintenance 1 (CRM1), also known as Exportin 1 (XPO1), is a protein that is critical for transport of proteins and RNA to the cytoplasm through the nuclear pore complex. CRM1 inhibition with small molecule inhibitors is currently being studied in many cancers, including leukemias, solid organ malignancies and brain tumors. We review the structure of CRM1, its role in nuclear export, the current availability of CRM1 inhibitors, and the role of CRM1 in a number of distinct cellular processes. A deeper understanding of how CRM1 functions in nuclear export as well as other cellular processes may allow for the development of additional novel CRM1 inhibitors.
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Affiliation(s)
- Waitman K. Aumann
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Rafi Kazi
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, University of Rochester Medical Center, Rochester, NY, United States
| | - Amanda M. Harrington
- Department of Pediatrics, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Daniel S. Wechsler
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
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2
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Han Y, Peng Y, Xiong H, Zeng L, Zhang T, Xia K, Hu X, Su T. XPO1 serves as a prognostic marker involving AKT/MAPK/TGFBR1 pathway in OSCC. Cancer Med 2024; 13:e70076. [PMID: 39177040 PMCID: PMC11342079 DOI: 10.1002/cam4.70076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/19/2024] [Accepted: 07/24/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND Exportin 1 (XPO1) is a nuclear export protein that facilitates the transportation of various substances. XPO1 promotes tumor development as a poor prognostic factor in a variety of tumors and is a therapeutic target for screening inhibitors. However, the role of XPO1 in oral squamous cell carcinoma (OSCC) has yet to be determined. METHODS The expression patterns of XPO1 mRNA in OSCC were investigated using bioinformatics tools, and the expression levels of XPO1 protein in OSCC specimens were confirmed by immunohistochemical assays. Survival analysis was conducted to evaluate the impact of XPO1 on prognosis. GO and KEGG enrichment analyses were utilized to uncover the signaling pathways mediated by XPO1. Additionally, we examined the association between XPO1 and AKT/MAPK/TGFBR1 and immune infiltration. RESULTS XPO1 mRNA and protein expression levels were significantly enhanced in OSCC and associated with OSCC severity. Enhanced XPO1 expression was indicative of poor survival. Functional analysis showed that XPO1 mediated pathways associated with cell cycle and DNA replication and reduced immune infiltration in OSCC. Additionally, XPO1 mRNA and protein expression levels had significant positive relationships with AKT/MAPK/TGFBR1. CONCLUSIONS XPO1, as a marker of poor prognosis in OSCC, can promote OSCC through AKT/MAPK/TGFBR1.
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Affiliation(s)
- Ying Han
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
| | - Ying Peng
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life SciencesCentral South UniversityChangshaHunanChina
| | - Haofeng Xiong
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
| | - Liujun Zeng
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
| | - Tianyi Zhang
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
| | - Kun Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life SciencesCentral South UniversityChangshaHunanChina
| | - Xin Hu
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
| | - Tong Su
- Department of Stomatology, Center of Stomatology, Xiangya HospitalCentral South UniversityChangshaHunanChina
- Research Center of Oral and Maxillofacial TumorXiangya hospital of Central South UniversityChangshaHunanChina
- Institute of Oral Cancer and Precancerous LesionsCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric Disorders (XiangYa Hospital)ChangshaHunanChina
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Yang Y, Qiu J, Kong J, Cao Y, Liu Y, Chen S, Wen Z, Sun F, Cao X. Development of a UPLC-MS/MS method for quantifying KPT-335 (Verdinexor) in feline plasma for a study of PK. Front Vet Sci 2024; 11:1438295. [PMID: 39132444 PMCID: PMC11310113 DOI: 10.3389/fvets.2024.1438295] [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: 05/25/2024] [Accepted: 07/09/2024] [Indexed: 08/13/2024] Open
Abstract
KPT-335 (Verdinexor) is a novel SINE that potently inhibits the nucleoprotein Exportin 1 (XPO1/CRM1) of tumor cell lines and reduces the replication level of the influenza virus. KPT-335 is mainly used for the treatment of canine tumors. Drugs for the effective treatment of feline tumors are currently unavailable in China. KPT-335 may have potential in the treatment of cat tumors. However, the effects of KPT-335 in cats are unreported, and no relevant methodology has been established for pharmacokinetic studies. In this study, a UPLC-MS/MS method was developed to determine KPT-335 concentrations in cat plasma, followed by pharmacokinetic studies. Briefly, plasma proteins are precipitated with acetonitrile, and the supernatant was collected for detection after centrifugation. The linearity for KPT-335 in cat plasma was in the range of 5-1,000 ng/mL. Satisfactory accuracy and precision were obtained. The intra-day accuracy was between -4.10% and 10.48%, the precision was ≤4.65%; the inter-day accuracy was between -0.11% and 8.09%, and the precision was ≤5.85%. Intra-day and inter-day accuracy and precision were within regulatory limits. The results of preliminary pharmacokinetic studies were as follows: Tmax was 1.46 ± 0.51 h; Cmax was 239.54 ± 190.60 ng·mL-1; T1/2 was 5.16 ± 2.30 h; AUC0-t was 1439.85 ± 964.64 ng·mL-1·h. The AUC0-∞ was 1589.82 ± 1003.75 ng·mL-1·h. The purpose of this study was to develop a rapid and simple UPLC-MS/MS method to detect KPT-335 concentration in cat plasma and to conduct preliminary pharmacokinetic studies to support the future application of KPT-335 in felines.
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Affiliation(s)
- Yuxin Yang
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jicheng Qiu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jingyuan Kong
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yuying Cao
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yu Liu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sumeng Chen
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zeyu Wen
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Feifei Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xingyuan Cao
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Lai C, Xu L, Dai S. The nuclear export protein exportin-1 in solid malignant tumours: From biology to clinical trials. Clin Transl Med 2024; 14:e1684. [PMID: 38783482 PMCID: PMC11116501 DOI: 10.1002/ctm2.1684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Exportin-1 (XPO1), a crucial protein regulating nuclear-cytoplasmic transport, is frequently overexpressed in various cancers, driving tumor progression and drug resistance. This makes XPO1 an attractive therapeutic target. Over the past few decades, the number of available nuclear export-selective inhibitors has been increasing. Only KPT-330 (selinexor) has been successfully used for treating haematological malignancies, and KPT-8602 (eltanexor) has been used for treating haematologic tumours in clinical trials. However, the use of nuclear export-selective inhibitors for the inhibition of XPO1 expression has yet to be thoroughly investigated in clinical studies and therapeutic outcomes for solid tumours. METHODS We collected numerous literatures to explain the efficacy of XPO1 Inhibitors in preclinical and clinical studies of a wide range of solid tumours. RESULTS In this review, we focus on the nuclear export function of XPO1 and results from clinical trials of its inhibitors in solid malignant tumours. We summarized the mechanism of action and therapeutic potential of XPO1 inhibitors, as well as adverse effects and response biomarkers. CONCLUSION XPO1 inhibition has emerged as a promising therapeutic strategy in the fight against cancer, offering a novel approach to targeting tumorigenic processes and overcoming drug resistance. SINE compounds have demonstrated efficacy in a wide range of solid tumours, and ongoing research is focused on optimizing their use, identifying response biomarkers, and developing effective combination therapies. KEY POINTS Exportin-1 (XPO1) plays a critical role in mediating nucleocytoplasmic transport and cell cycle. XPO1 dysfunction promotes tumourigenesis and drug resistance within solid tumours. The therapeutic potential and ongoing researches on XPO1 inhibitors in the treatment of solid tumours. Additional researches are essential to address safety concerns and identify biomarkers for predicting patient response to XPO1 inhibitors.
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Affiliation(s)
- Chuanxi Lai
- Department of Colorectal SurgerySir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Biotherapy of Zhejiang ProvinceHangzhouChina
| | - Lingna Xu
- Department of Colorectal SurgerySir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Biotherapy of Zhejiang ProvinceHangzhouChina
| | - Sheng Dai
- Department of Colorectal SurgerySir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Biotherapy of Zhejiang ProvinceHangzhouChina
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Deutzmann A, Sullivan DK, Dhanasekaran R, Li W, Chen X, Tong L, Mahauad-Fernandez WD, Bell J, Mosley A, Koehler AN, Li Y, Felsher DW. Nuclear to cytoplasmic transport is a druggable dependency in MYC-driven hepatocellular carcinoma. Nat Commun 2024; 15:963. [PMID: 38302473 PMCID: PMC10834515 DOI: 10.1038/s41467-024-45128-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/12/2024] [Indexed: 02/03/2024] Open
Abstract
The MYC oncogene is often dysregulated in human cancer, including hepatocellular carcinoma (HCC). MYC is considered undruggable to date. Here, we comprehensively identify genes essential for survival of MYChigh but not MYClow cells by a CRISPR/Cas9 genome-wide screen in a MYC-conditional HCC model. Our screen uncovers novel MYC synthetic lethal (MYC-SL) interactions and identifies most MYC-SL genes described previously. In particular, the screen reveals nucleocytoplasmic transport to be a MYC-SL interaction. We show that the majority of MYC-SL nucleocytoplasmic transport genes are upregulated in MYChigh murine HCC and are associated with poor survival in HCC patients. Inhibiting Exportin-1 (XPO1) in vivo induces marked tumor regression in an autochthonous MYC-transgenic HCC model and inhibits tumor growth in HCC patient-derived xenografts. XPO1 expression is associated with poor prognosis only in HCC patients with high MYC activity. We infer that MYC may generally regulate and require altered expression of nucleocytoplasmic transport genes for tumorigenesis.
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Affiliation(s)
- Anja Deutzmann
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Delaney K Sullivan
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Renumathy Dhanasekaran
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
- Division of Gastroenterology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Wei Li
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC, 20012, USA
- Department of Genomics and Precision Medicine, George Washington University, Washington, DC, 20012, USA
| | - Xinyu Chen
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Ling Tong
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | | | - John Bell
- Stanford Genome Technology Center, Stanford University, Stanford, CA, 94305, USA
| | - Adriane Mosley
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Angela N Koehler
- Koch Institute for Integrative Cancer Research at MIT, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Center for Precision Cancer Medicine, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Yulin Li
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA.
- Institute for Academic Medicine, Houston Methodist and Weill Cornell Medical College, Houston, TX, 77030, USA.
| | - Dean W Felsher
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA, 94305, USA.
- Department of Pathology, Stanford University, Stanford, CA, 94305, USA.
- Stanford Cancer Institute, Stanford University, Stanford, CA, 94305, USA.
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Tan Y, Chen G, He RQ, Huang ZG, Dang YW, Luo JY, Huang WY, Huang SN, Liu R, Feng ZB. Clinicopathological and prognostic significance of XPO1 in solid tumors: meta-analysis and TCGA analysis. Expert Rev Mol Diagn 2023; 23:607-618. [PMID: 37335774 DOI: 10.1080/14737159.2023.2224505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/08/2023] [Indexed: 06/21/2023]
Abstract
INTRODUCTION Exportin 1 (XPO1) is overexpressed in several solid tumors, and is associated with poor prognosis. Here, we aimed to evaluate the implication of XPO1 expression in solid tumors through a meta-analysis. METHODS PubMed, Web of Science, and Embase databases were searched for articles published until February 2023. Statistical data of the patients, odds ratios and hazard ratios (HRs), together with their corresponding 95% confidence intervals (CIs) were pooled to assess clinicopathological features and survival outcomes. Besides, the Cancer Genome Atlas (TCGA) was used to explore the prognostic significance of XPO1 in solid tumors. RESULTS A total of 22 works, comprising 2595 patients were included in this study. The results suggested that increased XPO1 expression was associated with a higher tumor grade, more lymph node metastasis, advanced tumor stage, and progressively worse total clinical stage. Additionally, high XPO1 expression was associated with worse overall survival (OS) (HR = 1.43, 95% CI = 1.12-1.81, P = 0.004) and shorter progression-free survival (HR = 1.40, 95% CI = 1.07-1.84, P = 0.01). An analysis using the TCGA dataset showed that high XPO1 expression was associated with poor OS and disease-free survival. CONCLUSIONS XPO1 is a promising prognostic biomarker and may constitute a therapeutic target for solid tumors.PROSPERO registration number: CRD42023399159.
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Affiliation(s)
- Yang Tan
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jia-Yuan Luo
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wan-Ying Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Su-Ning Huang
- Department of Radiotherapy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Run Liu
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhen-Bo Feng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Jiang C, Yang Y, He S, Yue Z, Xing T, Chu P, Yang W, Chen H, Zhao X, Yu Y, Zhang X, Su Y, Guo Y, Ma X. BPTF in bone marrow provides a potential progression biomarker regulated by TFAP4 through the PI3K/AKT pathway in neuroblastoma. Biol Proced Online 2023; 25:11. [PMID: 37170211 PMCID: PMC10176855 DOI: 10.1186/s12575-023-00200-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/18/2023] [Indexed: 05/13/2023] Open
Abstract
BACKGROUND Neuroblastoma (NB) is the most common extracranial malignant solid tumor in children, which is highly prone to bone marrow (BM) metastasis. BM can monitor early signs of mild disease and metastasis. Existing biomarkers are insufficient for the diagnosis and treatment of NB. Bromodomain PHD finger transcription factor (BPTF) is an important subunit of the chromatin-remodeling complex that is closely associated with tumors. Here, we evaluated whether BPTF in BM plays an important role in predicting NB progression, and explore the molecular mechanism of BPTF in NB. METHODS The clinical relevance of the BPTF was predicted in the GEO (GSE62564) and TARGET database. The biological function of BPTF in NB was investigated by constructing cell lines and employing BPTF inhibitor AU1. Western blot was used to determine the changes of BPTF, TFAP4, PI3K/AKT signaling and Epithelial-mesenchymal transition (EMT) related markers. A total of 109 children with newly diagnosed NB in Beijing Children's Hospital from January 2018 to March 2021 were included in this study. RT-PCR was used to measure the BPTF and TFAP4 expression in BM. The cut-off level was set at the median value of BPTF expression levels. RESULTS Databases suggested that BPTF expression was higher in NB and was significantly associated with stage and grade. Proliferation and migration of NB cells were slowed down when BPTF was silenced. Mechanistically, TFAP4 could positively regulate BPTF and promotes EMT process through activating the PI3K/AKT signaling pathway. Moreover, detection of the newly diagnosed BM specimens showed that BPTF expression was significantly higher in high-risk group, stage IV group and BM metastasis group. Children with high BPTF at initial diagnosis were considered to have high risk for disease progression and recurrence. BPTF is an independent risk factor for predicting NB progression. CONCLUSIONS A novel and convenient BPTF-targeted humoral detection that can prompt minimal residual and predict NB progression in the early stages of the disease were identified. BPTF inhibitor AU1 is expected to become a new targeted drug for NB therapy. It's also reveal previously unknown mechanisms of BPTF in NB cell proliferation and metastasis through TFAP4 and PI3K/AKT pathways.
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Affiliation(s)
- Chiyi Jiang
- Medical Oncology Department, Pediatric Oncology CenterNational Center for Children's HealthKey Laboratory of Pediatric Hematology Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, 56 Nanlishi Road, Beijing, Xicheng District, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Yeran Yang
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Sidou He
- Medical Oncology Department, Pediatric Oncology CenterNational Center for Children's HealthKey Laboratory of Pediatric Hematology Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Zhixia Yue
- Hematologic Disease LaboratoryKey Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics (Capital Medical University)Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Hematology Center, Beijing, China
| | - Tianyu Xing
- Hematologic Disease LaboratoryKey Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics (Capital Medical University)Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Hematology Center, Beijing, China
| | - Ping Chu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Wenfa Yang
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Hui Chen
- Hematologic Disease LaboratoryKey Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics (Capital Medical University)Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Hematology Center, Beijing, China
| | - Xiaoxi Zhao
- Hematologic Disease LaboratoryKey Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics (Capital Medical University)Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Hematology Center, Beijing, China
| | - Yongbo Yu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Xuan Zhang
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China
| | - Yan Su
- Medical Oncology Department, Pediatric Oncology CenterNational Center for Children's HealthKey Laboratory of Pediatric Hematology Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, 56 Nanlishi Road, Beijing, Xicheng District, China.
| | - Yongli Guo
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, Xicheng District, China.
| | - Xiaoli Ma
- Medical Oncology Department, Pediatric Oncology CenterNational Center for Children's HealthKey Laboratory of Pediatric Hematology Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, 56 Nanlishi Road, Beijing, Xicheng District, China.
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Wang J, Zhao J, Ma F, Gong L, Lu Y, Xiao W, Tang H, Gao C, Chen Y, Ma J, Gao Z, Yan J, Han S. One Stone, Two Birds: A Peptide-Au(I) Infinite Coordination Supermolecule for the Confederate Physical and Biological Radiosensitization in Cancer Radiation Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204238. [PMID: 36494177 DOI: 10.1002/smll.202204238] [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: 07/10/2022] [Revised: 09/27/2022] [Indexed: 06/17/2023]
Abstract
Over half of cancer patients are subjected to radiotherapy, but owing to the deficient amount of reactive oxygen radicals (ROS) and DNA double-strand breaks (DSBs), a fair number of them suffer from radiotherapy resistance and the subsequent short-term survival opportunity. To overcome it, many successes have been achieved in radiosensitizer discovery using physical strategy and/or biological strategy, but significant challenges remain regarding developing clinically translational radiosensitizers. Herein, a peptide-Au(I) infinite coordination supermolecule termed PAICS is developed that combined both physical and biological radiosensitization and possessed pharmaceutical characteristics including adequate circulatory stability, controllable drug release, tumor-prioritized accumulation, and the favorable body eliminability. As expected, monovalent gold ion endowed this supermolecule with high X-ray absorption and the subsequent radiosensitization. Furthermore, a peptide targeting CRM1, is assembled into the supermolecule, which successfully activates p53 and apoptosis pathway, thereby further sensitizing radiotherapy. As a result, PAICS showed superior ability for radiotherapy sensitization in vivo and maintained a favorable safety profile. Thus, the PAICS reported here will offer a feasible solution to simultaneously overcome both the pharmaceutical obstacles of physical and biological radiosensitizers and will enable the development of a class of nanomedicines for tumor radiotherapy sensitization.
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Affiliation(s)
- Jing Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Jing Zhao
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Fang Ma
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, P. R. China
| | - Liuyun Gong
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Yinliang Lu
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Weiping Xiao
- Department of Neonatology, The First Affiliated Hospital of Xi 'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Hanmin Tang
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Chengyi Gao
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Yuetong Chen
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Jun Ma
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Zhan Gao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, P. R. China
| | - Jin Yan
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, P. R. China
| | - Suxia Han
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
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Zhao C, Ma B, Yang ZY, Li O, Liu SL, Pan LJ, Gong W, Dong P, Shu YJ. Inhibition of XPO1 impairs cholangiocarcinoma cell proliferation by triggering p53 intranuclear accumulation. Cancer Med 2023; 12:5751-5763. [PMID: 36200270 PMCID: PMC10028126 DOI: 10.1002/cam4.5322] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND XPO1 mediates the nuclear export of several proteins, mainly tumor suppressors. KPT-330 (Selinexor) is a selective inhibitor of XPO1 that has demonstrated good therapeutic effects in hematologic cancers. METHODS We used TCGA and GTEx pan-cancer database to evaluate XPO1 mRNA expression in various tumors. Cell proliferation assay and colony formation assay were used to analyze the in vitro antitumor effects of XPO1 inhibitor KPT-330. Western blot was performed to explore the specific mechanisms. RESULTS We found that XPO1 was highly expressed across a range of cancers and associated with poor prognosis in hepatobiliary and pancreatic tumors. We revealed that the XPO1 inhibitor KPT-330 triggered the nuclear accumulation of the p53 protein and significantly disrupted the proliferation of cholangiocarcinoma cells. Mechanistically, the XPO1 inhibitor, KPT-330, reduced BIRC6 expression by inhibiting the PI3K/AKT pathway to decrease p53 degradation and improve its stability. CONCLUSION Therefore, XPO1 may be a potential therapeutic target in cholangiocarcinoma, mediated by its effects on KPT-330.
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Affiliation(s)
- Cheng Zhao
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Ben Ma
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Zi-Yi Yang
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Ou Li
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Shi-Lei Liu
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Li-Jia Pan
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Wei Gong
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Ping Dong
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Yi-Jun Shu
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
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10
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Liu G, Chen T, Zhang X, Ma X, Shi H. Small molecule inhibitors targeting the cancers. MedComm (Beijing) 2022; 3:e181. [PMID: 36254250 PMCID: PMC9560750 DOI: 10.1002/mco2.181] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
Compared with traditional therapies, targeted therapy has merits in selectivity, efficacy, and tolerability. Small molecule inhibitors are one of the primary targeted therapies for cancer. Due to their advantages in a wide range of targets, convenient medication, and the ability to penetrate into the central nervous system, many efforts have been devoted to developing more small molecule inhibitors. To date, 88 small molecule inhibitors have been approved by the United States Food and Drug Administration to treat cancers. Despite remarkable progress, small molecule inhibitors in cancer treatment still face many obstacles, such as low response rate, short duration of response, toxicity, biomarkers, and resistance. To better promote the development of small molecule inhibitors targeting cancers, we comprehensively reviewed small molecule inhibitors involved in all the approved agents and pivotal drug candidates in clinical trials arranged by the signaling pathways and the classification of small molecule inhibitors. We discussed lessons learned from the development of these agents, the proper strategies to overcome resistance arising from different mechanisms, and combination therapies concerned with small molecule inhibitors. Through our review, we hoped to provide insights and perspectives for the research and development of small molecule inhibitors in cancer treatment.
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Affiliation(s)
- Gui‐Hong Liu
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Tao Chen
- Department of CardiologyThe First Affiliated Hospital of China Medical UniversityShenyangLiaoningChina
| | - Xin Zhang
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Xue‐Lei Ma
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Hua‐Shan Shi
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
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11
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Zhao C, Yang ZY, Zhang J, Li O, Liu SL, Cai C, Shu YJ, Pan LJ, Gong W, Dong P. Inhibition of XPO1 with KPT-330 induces autophagy-dependent apoptosis in gallbladder cancer by activating the p53/mTOR pathway. Lab Invest 2022; 20:434. [PMID: 36180918 PMCID: PMC9524043 DOI: 10.1186/s12967-022-03635-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/11/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Gallbladder cancer (GBC) is a highly aggressive malignant cancer in the biliary system with poor prognosis. XPO1 (chromosome region maintenance 1 or CRM1) mediates the nuclear export of several proteins, mainly tumor suppressors. Thus, XPO1 functions as a pro-oncogenic factor. KPT-330 (Selinexor) is a United States Food and Drug Administration approved selective inhibitor of XPO1 that demonstrates good therapeutic effects in hematologic cancers. However, the function of XPO1 and the effect of KPT-330 have not been reported in GBC. METHODS We analyzed the correlation between XPO1 expression levels by q-PCR and clinical features of GBC patients. Cell proliferation assays were used to analyze the in vitro antitumor effects of XPO1 inhibitor KPT-330. mRNA sequencing was used to explore the underlying mechanisms. Western blot was performed to explore the relationship between apoptosis and autophagy. The in vivo antitumor effect of KPT-330 was investigated in a nude mouse model of gallbladder cancer. RESULTS We found that high expression of XPO1 was related to poor prognosis of GBC patients. We observed that XPO1 inhibitor KPT-330 inhibited the proliferation of GBC cells in vitro. Furthermore, XPO1 inhibitor KPT-330 induced apoptosis by reducing the mitochondrial membrane potential and triggering autophagy in NOZ and GBC-SD cells. Indeed, XPO1 inhibitor KPT-330 led to nuclear accumulation of p53 and activated the p53/mTOR pathway to regulate autophagy-dependent apoptosis. Importantly, KPT-330 suppressed tumor growth with no obvious toxic effects in vivo. CONCLUSION XPO1 may be a promising prognostic indicator for GBC, and KPT-330 appears to be a potential drug for treating GBC effectively and safely.
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Affiliation(s)
- Cheng Zhao
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Zi-Yi Yang
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Jian Zhang
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Ou Li
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Shi-Lei Liu
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Chen Cai
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yi-Jun Shu
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China.,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Li-Jia Pan
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China. .,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China.
| | - Wei Gong
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China. .,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China.
| | - Ping Dong
- Laboratory of General Surgery and Department of General Surgery, Xinhua Hospital Affiliated With Shanghai Jiao Tong University School of Medicine, No. 1665 Kongjiang Road, Shanghai, 200092, China. .,Shanghai Key Laboratory of Biliary Tract Disease Research, No. 1665 Kongjiang Road, Shanghai, 200092, China.
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Xu H, Chen G, Niu Q, Song K, Feng Z, Han Z. SKA3 promotes cell growth via the PI3K/AKT/GSK3β and PI3K/AKT/FOXO1 pathways and is a potential prognostic biomarker for oral squamous cell carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2022; 134:599-614. [DOI: 10.1016/j.oooo.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 04/04/2022] [Accepted: 06/22/2022] [Indexed: 11/25/2022]
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13
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Qu B, Xu Y, Lu Y, Zhuang W, Jin X, Shi Q, Yan S, Guo Y, Shen Z, Che J, Wu Y, Tong L, Dong X, Yang H. Design, synthesis and biological evaluation of sulfonamides inhibitors of XPO1 displaying activity against multiple myeloma cells. Eur J Med Chem 2022; 235:114257. [DOI: 10.1016/j.ejmech.2022.114257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 11/04/2022]
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14
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Liu S, Qiao W, Sun Q, Luo Y. Chromosome Region Maintenance 1 (XPO1/CRM1) as an Anticancer Target and Discovery of Its Inhibitor. J Med Chem 2021; 64:15534-15548. [PMID: 34669417 DOI: 10.1021/acs.jmedchem.1c01145] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Chromosome region maintenance 1 (CRM1) is a major nuclear export receptor protein and contributes to cell homeostasis by mediating the transport of cargo from the nucleus to the cytoplasm. CRM1 is a therapeutic target comprised of several tumor types, including osteosarcoma, multiple myeloma, gliomas, and pancreatic cancer. In the past decade, dozens of CRM1 inhibitors have been discovered and developed, including KPT-330, which received FDA approval for multiple myeloma (MM) and diffuse large B-cell lymphoma (DLBCL) in 2019 and 2020, respectively. This review summarizes the biological functions of CRM1, the current understanding of the role CRM1 plays in cancer, the discovery of CRM1 small-molecule inhibitors, preclinical and clinical studies on KPT-330, and other recently developed inhibitors. A new CRM1 inhibition mechanism and structural dynamics are discussed. Through this review, we hope to guide the future design and optimization of CRM1 inhibitors.
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Affiliation(s)
- Song Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wenliang Qiao
- Lung Cancer Center, Laboratory of Lung Cancer, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Qingxiang Sun
- State Key Laboratory of Biotherapy, Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Youfu Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
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