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Tang J, Huang JJ, Luo YL, Zhang LK, Wang QQ, Chen J, Liu ZY. [The clinicopathological features of adult thyroid tumors with DICER1 mutation]. Zhonghua Yi Xue Za Zhi 2024; 104:1623-1627. [PMID: 38742350 DOI: 10.3760/cma.j.cn112137-20231107-01031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
A total of 37 cases of thyroid tumors with pathological features suggestive of DICER1 gene mutation were selected to detect the DICER1 gene and BRAF gene using Sanger sequencing. A total of 10 patients (27.0%) exhibited DICER1 gene mutation all of whom were female with an age of [M(Q1, Q3)] 38.0 (30.5, 47.5) years. All patients had wild-type BRAFV600E gene. The ultrasound examination showed high-low echogenic well-demarcated intra-thyroidal nodules with abundant peripheral and internal blood flow signals in the DICER1 mutated thyroid tumor. The tumor was confined within the thyroid gland, with a diameter of (3.68±1.31) cm. The pathological features are as follows: the majority of tumors are encapsulated, which mainly composed of large follicles rich in colloid and some are small and micro follicles. The nucleus is round and deeply stained or slightly light stained, small to medium-sized, with occasional nuclear grooves and a lack of nuclear pseudoinclusion bodies within the nucleus. Immunohistochemical staining shows that Ki67 proliferation index of approximately 2%-10%. All cases were followed up for 11 to 18 months, and there was no recurrences or distant metastase. This study confirmed that the DICER1 gene mutation is mutually exclusive with the BRAFV600E gene mutation. The thyroid tumor with DICER1 mutation are in big size and are more common in young females with a good prognosis. Cases with the wild-type DICER1 gene may exhibit similar morphological features, and molecular testing is recommended. If somatic DICER1 mutation is confirmed, patients should undergo germline mutation testing to rule out DICER1 syndrome in order to define whether genetic counseling is necessary.
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Affiliation(s)
- J Tang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - J J Huang
- Department of Pathology, Linyi Traditional Chinese Medicine Hospital, Linyi 276002, China
| | - Y L Luo
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - L K Zhang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Q Q Wang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - J Chen
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Z Y Liu
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
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Huang J, Luo YL, Bai YQ, Jiao Q, Chen J, Jiang ZM, Liu ZY, Zhang HZ. [Fibrocartilaginous mesenchymoma: a clinicopathological analysis of four cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:25-30. [PMID: 36617902 DOI: 10.3760/cma.j.cn112151-20221026-00886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objective: To investigate the clinical, radiological, histological and molecular features and the differential diagnosis of fibrocartilaginous mesenchymoma (FM). Methods: Four cases of FM diagnosed in the Department of Pathology, the Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine from 2020 to 2022 were analyzed. Related literature was also reviewed. Results: Case 1 was a 10-year-old girl with bone destruction in the sacrum and L5 articular processes revealed by CT scan. Case 2 was a 7-year-old girl with an aggressive lesion in her right distal ulna. Case 3 was an 11-year-old boy with a lesion in the metaphysis of his left proximal tibia. Case 4 was an 11-year-old boy with bone destruction in the distal portion of a radius. Microscopically, the four tumors all consisted of numerous spindle cells, hyaline cartilage nodules, and bone trabeculae. The hypocellular to moderately cellular spindle cell component contained elongated cells with slightly hyperchromatic, mildly atypical nuclei arranged in bundles or intersecting fascicles. Benign-appearing cartilaginous nodules of various sizes and shapes were scattered throughout the tumors. There were areas mimicking epiphyseal growth-plate characterized by chondrocytes arranged in parallel columns and areas of enchondral ossification. The stroma was rich in mucus in case 1. Mutation of GNAS and IDH1/IDH2 and amplification of MDM2 gene were not found in any of the three tested cases. Conclusions: FM is very rare and tends to affect young patients. It most frequently occurs in the metaphysis of long tubular bones, followed by the iliac-pubic bones and vertebrae. FM is characterized by a mixed population of spindle cells, hyaline cartilage nodules and trabeculae of bone, without specific immunophenotypes and molecular alternations. As a borderline, locally aggressive neoplasm, surgical removal with a wide margin is generally the treatment of choice for FM.
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Affiliation(s)
- J Huang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - Y L Luo
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - Y Q Bai
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - Q Jiao
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - J Chen
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - Z M Jiang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - Z Y Liu
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
| | - H Z Zhang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
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Chen YF, Wang Y, Wang Y, Luo YL, Lu ZD, Du XJ, Xu CF, Wang J. Optimized Cationic Lipid-assisted Nanoparticle for Delivering CpG Oligodeoxynucleotides to Treat Hepatitis B Virus Infection. Pharm Res 2023; 40:145-156. [PMID: 36002611 DOI: 10.1007/s11095-022-03307-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Hepatitis B virus (HBV) infection is such a global health problem that hundreds of millions of people are HBV carriers. Current anti-viral agents can inhibit HBV replication, but can hardly eradicate HBV. Cytosine-phosphate-guanosine (CpG) oligodeoxynucleotides (ODNs) are an adjuvant that can activate plasmacytoid dendritic cells (pDCs) and conventional dendritic cells (cDCs) to induce therapeutic immunity for HBV eradication. However, efficient delivery of CpG ODNs into pDCs and cDCs remains a challenge. In this study, we constructed a series of cationic lipid-assisted nanoparticles (CLANs) using different cationic lipids to screen an optimal nanoparticle for delivering CpG ODNs into pDCs and cDCs. METHODS We constructed different CLANCpG using six cationic lipids and analyzed the cellular uptake of different CLANCpG by pDCs and cDCs in vitro and in vivo, and further analyzed the efficiency of different CLANCpG for activating pDCs and cDCs in both wild type mice and HBV-carrier mice. RESULTS We found that CLAN fabricated with 1,2-Dioleoyl-3-trimethylammonium propane (DOTAP) showed the highest efficiency for delivering CpG ODNs into pDCs and cDCs, resulting in strong therapeutic immunity in HBV-carrier mice. By using CLANCpG as an immune adjuvant in combination with the injection of recombinant hepatitis B surface antigen (rHBsAg), HBV was successfully eradicated and the chronic liver inflammation in HBV-carrier mice was reduced. CONCLUSION We screened an optimized CLAN fabricated with DOTAP for efficient delivery of CpG ODNs to pDCs and cDCs, which can act as a therapeutic vaccine adjuvant for treating HBV infection.
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Affiliation(s)
- Yi-Fang Chen
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China
| | - Yan Wang
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yue Wang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Ying-Li Luo
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Zi-Dong Lu
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Xiao-Jiao Du
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Cong-Fei Xu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China. .,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Jun Wang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, People's Republic of China
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4
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Cai JH, Song XY, Luo YL, Li SY. [Establishment and application of animal models of pulmonary alveolar proteinosis]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:106-110. [PMID: 35000315 DOI: 10.3760/cma.j.cn112147-20210629-00454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Pulmonary alveolar proteinosis (PAP) is a rare respiratory disease, but this disease has slow research progress. Animal model is an effective tool for basic research. Current PAP animal models are based on the main pathogenesis of granulocyte-macrophage colony stimulation factor (GM-CSF) signal disorder and environmental homeostasis imbalance in the alveoli. Application researches focus on the treatment strategies of PAP. The existing PAP animal models cannot fully reflect to the development of human PAP, which should be further developed and improved to provide the basis for clinical practice.
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Affiliation(s)
- J H Cai
- The First Affiliated Hospital of Guangzhou Medical University, National Centre for Respiratory Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
| | - X Y Song
- The First Affiliated Hospital of Guangzhou Medical University, National Centre for Respiratory Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
| | - Y L Luo
- The First Affiliated Hospital of Guangzhou Medical University, National Centre for Respiratory Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
| | - S Y Li
- The First Affiliated Hospital of Guangzhou Medical University, National Centre for Respiratory Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
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5
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Hao ZY, Wang JQ, Luo YL, Liu X, Li SB, Zhao ML, Jin XY, Shen JY, Ke N, Song YZ, Qiao LR. Deep small RNA-Seq reveals microRNAs expression profiles in lactating mammary gland of 2 sheep breeds with different milk performance. Domest Anim Endocrinol 2021; 74:106561. [PMID: 33035848 DOI: 10.1016/j.domaniend.2020.106561] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 01/22/2023]
Abstract
Micro ribonucleic acid (miRNA) is a type of noncoding RNA, and it has been revealed to play important roles in the activity of the mammary gland (MG) in some species. However, the function of miRNAs in MG of sheep is poorly understood. In the study, Gansu Alpine Merino (GAM; n = 9) and Small-tailed Han sheep (STH; n = 9) with different milk production traits were investigated. Microstructures and the expression profile of miRNAs of MG tissues at peak lactation were studied. Mature alveolar lumens of MG in appearance were larger in STH than GAM. The expression levels of CSN2 and the content of rough endoplasmic reticulum were also higher in STH ewes than GAM ewes. A total of 124 mature miRNAs were expressed, and 18 of these were differentially expressed between the 2 breeds. The KEGG analysis results showed that the targeted genes of differentially expressed miRNAs were mainly involved in some metabolic pathways and signaling pathways related to MG development, milk protein, and fat synthesis. The findings in the study can improve our understanding of the roles of miRNAs in the development and lactation of MG in sheep.
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Affiliation(s)
- Z Y Hao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - J Q Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Y L Luo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - X Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - S B Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - M L Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - X Y Jin
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - J Y Shen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - N Ke
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Y Z Song
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - L R Qiao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
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Xu CF, Chen GJ, Luo YL, Zhang Y, Zhao G, Lu ZD, Czarna A, Gu Z, Wang J. Rational designs of in vivo CRISPR-Cas delivery systems. Adv Drug Deliv Rev 2021; 168:3-29. [PMID: 31759123 DOI: 10.1016/j.addr.2019.11.005] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/09/2019] [Accepted: 11/19/2019] [Indexed: 02/08/2023]
Abstract
The CRISPR-Cas system initiated a revolution in genome editing when it was, for the first time, demonstrated success in the mammalian cells. Today, scientists are able to readily edit genomes, regulate gene transcription, engineer posttranscriptional events, and image nucleic acids using CRISPR-Cas-based tools. However, to efficiently transport CRISPR-Cas into target tissues/cells remains challenging due to many extra- and intra-cellular barriers, therefore largely limiting the applications of CRISPR-based therapeutics in vivo. In this review, we summarize the features of plasmid-, RNA- and ribonucleoprotein (RNP)-based CRISPR-Cas therapeutics. Then, we survey the current in vivo delivery systems. We specify the requirements for efficient in vivo delivery in clinical settings, and highlight both efficiency and safety for different CRISPR-Cas tools.
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7
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Luo YL, Liang LF, Gan YJ, Liu J, Zhang Y, Fan YN, Zhao G, Czarna A, Lu ZD, Du XJ, Shen S, Xu CF, Lian ZX, Wang J. An All-in-One Nanomedicine Consisting of CRISPR-Cas9 and an Autoantigen Peptide for Restoring Specific Immune Tolerance. ACS Appl Mater Interfaces 2020; 12:48259-48271. [PMID: 33070614 DOI: 10.1021/acsami.0c10885] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanotechnology has shown great promise in treating diverse diseases. However, developing nanomedicines that can cure autoimmune diseases without causing systemic immunosuppression is still quite challenging. Herein, we propose an all-in-one nanomedicine comprising an autoantigen peptide and CRISPR-Cas9 to restore specific immune tolerance by engineering dendritic cells (DCs) into a tolerogenic phenotype, which can expand autoantigen-specific regulatory T (Treg) cells. In brief, we utilized cationic lipid-assisted poly(ethylene glycol)-b-poly(lactide-co-glycolide) (PEG-PLGA) nanoparticles to simultaneously encapsulate an autoimmune diabetes-relevant peptide (2.5mi), a CRISPR-Cas9 plasmid (pCas9), and three guide RNAs (gRNAs) targeting costimulatory molecules (CD80, CD86, and CD40). We demonstrated that the all-in-one nanomedicine was able to effectively codeliver these components into DCs, followed by simultaneous disruption of the three costimulatory molecules and presentation of the 2.5mi peptide on the genome-edited DCs. The resulting tolerogenic DCs triggered the generation and expansion of autoantigen-specific Treg cells by presenting the 2.5mi peptide to CD4+ T cells in the absence of costimulatory signals. Using autoimmune type 1 diabetes (T1D) as a typical disease model, we demonstrated that our nanomedicine prevented autoimmunity to islet components and inhibited T1D development. Our all-in-one nanomedicine achieved codelivery of CRISPR-Cas9 and the peptide to DCs and could be easily applied to other autoimmune diseases by substitution of different autoantigen peptides.
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Affiliation(s)
- Ying-Li Luo
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Li-Fang Liang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P. R. China
| | - Yun-Jiu Gan
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, P. R. China
| | - Jing Liu
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Yue Zhang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Ya-Nan Fan
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Gui Zhao
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Anna Czarna
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Zi-Dong Lu
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Xiao-Jiao Du
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, P. R. China
| | - Song Shen
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Cong-Fei Xu
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Zhe-Xiong Lian
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Jun Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P. R. China
- Research Institute for Food Nutrition and Human Health, Guangzhou 510641, P. R. China
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Liu J, Li HJ, Luo YL, Chen YF, Fan YN, Du JZ, Wang J. Programmable Delivery of Immune Adjuvant to Tumor-Infiltrating Dendritic Cells for Cancer Immunotherapy. Nano Lett 2020; 20:4882-4889. [PMID: 32551705 DOI: 10.1021/acs.nanolett.0c00893] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tumor-infiltrating dendritic cells (TIDCs) are mostly immature and immunosuppressive, usually mediating immune inhibition. The utilization of cytosine-guanine oligodeoxynucleotides (CpG ODNs) to stimulate the activation of TIDCs has been demonstrated to be effective for improving antitumor immunity. However, a series of biological barriers has limited the efficacy of previous nanocarriers for delivering CpG to TIDCs. Herein, we developed a dual-sensitive dendrimer cluster-based nanoadjuvant for delivering CpG ODNs into TIDCs. We show that the tumor acidity triggers the rapid release of CpG conjugated polyamidoamine (PAMAM) dendrimers from the nanoadjuvant, thus facilitating its perfusion deep into tumors and phagocytosis by TIDCs. Thereafter, the reductive condition of the endolysosomes led to the subsequent release of CpG, which promotes the DCs activation and enhances antitumor immunotherapies. Programmable delivery of immune adjuvant efficiently overcomes the barriers for targeted delivery to TIDCs and provides a promising strategy for improving cancer immunotherapy.
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Affiliation(s)
- Jing Liu
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
| | - Hong-Jun Li
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Ying-Li Luo
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Yi-Fang Chen
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Ya-Nan Fan
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
| | - Jin-Zhi Du
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou 510006, P. R. China
| | - Jun Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P. R. China
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9
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Gleede T, Yu F, Luo YL, Yuan Y, Wang J, Wurm FR. Linear Well-Defined Polyamines via Anionic Ring-Opening Polymerization of Activated Aziridines: From Mild Desulfonylation to Cell Transfection. ACS Macro Lett 2020; 9:20-25. [PMID: 35638659 DOI: 10.1021/acsmacrolett.9b00792] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Linear polyethylenimine (L-PEI), a standard for nonviral gene delivery, is usually prepared by hydrolysis from poly(2-oxazoline)s. Lately, anionic polymerization of sulfonamide-activated aziridines had been reported as an alternative pathway toward well-defined L-PEI and linear polyamines. However, desulfonylation of the poly(sulfonyl aziridine)s typically relied on harsh conditions (acid, microwave) or used a toxic solvent (e.g., hexamethylphosphoramide). In addition, the drastic change of polarity requires solvents, which keep poly(sulfonyl aziridine)s as well as L-PEI in solution, and only a limited number of strategies were reported. Herein, we prepared 1-(4-cyanobenzenesulfonyl) 2-methyl-aziridine (1) as a monomer for the anionic ring-opening polymerization. It was polymerized to well-defined and linear poly(sulfonyl aziridine)s. The 4-cyanobenzenesulfonyl-activating groups were removed under mild conditions to linear polypropylenimine (L-PPI). Using dodecanethiol and diazabicyclo-undecene (DBU) allowed ≥98% desulfonylation and a reliable purification toward polyamines with high purity and avoiding main-chain scission. This method represents a fast approach in comparison to previous methods used for postpolymerization desulfonylation and produces linear well-defined polyamines. The high control over molecular weight and dispersities achieved by living anionic polymerization are the key advantages of our strategy, especially if used for biomedical applications, in which molecular weight might correlate with toxicity. The synthesized polypropylenimine was further tested as a cell-transfection agent and proved, with 16.1% transfection efficiency of the cationic nanoparticles, to be an alternative to L-PEI obtained from the 2-oxazoline route. This general strategy will allow the preparation of complex macromolecular architectures containing polyamine segments, which were not accessible before.
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Affiliation(s)
- Tassilo Gleede
- Max-Planck-Institut für Polymerforschung (MPI-P), Ackermannweg 10, D-55128 Mainz, Germany
| | - Fangzhou Yu
- National Engineering Research Center for Tissue Restoration and Reconstruction, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Ying-Li Luo
- National Engineering Research Center for Tissue Restoration and Reconstruction, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Youyong Yuan
- National Engineering Research Center for Tissue Restoration and Reconstruction, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Jun Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Frederik R. Wurm
- Max-Planck-Institut für Polymerforschung (MPI-P), Ackermannweg 10, D-55128 Mainz, Germany
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10
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Wang Y, Luo YL, Chen YF, Lu ZD, Wang Y, Czarna A, Shen S, Xu CF, Wang J. Dually regulating the proliferation and the immune microenvironment of melanoma via nanoparticle-delivered siRNA targeting onco-immunologic CD155. Biomater Sci 2020; 8:6683-6694. [DOI: 10.1039/d0bm01420f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Nanoparticle-delivered siRNA targeting CD155 for dual regulation of the proliferation and of the immune microenvironment of melanoma.
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Affiliation(s)
- Yan Wang
- Institutes for Life Sciences
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Ying-Li Luo
- Institutes for Life Sciences
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Yi-Fang Chen
- Institutes for Life Sciences
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Zi-Dong Lu
- Institutes for Life Sciences
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Yue Wang
- School of Biomedical Sciences and Engineering
- Guangzhou International Campus
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Anna Czarna
- Institutes for Life Sciences
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Song Shen
- School of Biomedical Sciences and Engineering
- Guangzhou International Campus
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Cong-Fei Xu
- School of Biomedical Sciences and Engineering
- Guangzhou International Campus
- South China University of Technology
- Guangzhou 510006
- P.R. China
| | - Jun Wang
- School of Biomedical Sciences and Engineering
- Guangzhou International Campus
- South China University of Technology
- Guangzhou 510006
- P.R. China
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11
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Li HJ, Liu J, Luo YL, Chen SB, Liu R, Du JZ, Wang J. Intratumor Performance and Therapeutic Efficacy of PAMAM Dendrimers Carried by Clustered Nanoparticles. Nano Lett 2019; 19:8947-8955. [PMID: 31694380 DOI: 10.1021/acs.nanolett.9b03913] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In recent years, small nanoparticles (NPs) with a diameter of less than 10 nm have aroused considerable interest in biomedical applications. However, their intratumor performance, as well as the antitumor efficacy, has not been well understood due to their size-dependent pharmacokinetics, which presents a formidable challenge for delivering a comparable amount of different small NPs to tumor tissues. Utilizing the multistage delivery strategy, we construct G3-, G5-, and G7-iCluster delivery systems by using poly(amidoamine) (PAMAM) dendrimers of different generations (G3-, G5-, and G7-PAMAM) as building blocks. The iCluster nanoparticles showed comparable pharmacokinetics and similar initial tumor deposition due to their similarity in size and surface chemistry. After accumulating at a tumor site, individual small dendrimers were released, and thus, their intratumor performance was comparatively investigated. Our results indicated that a subtle change in generation markedly affects their intratumor activities. G5-iCluster outperformed G3-iCluster and G7-iCluster in the treatment efficacy in an orthotopic pancreatic tumor model. The mechanistic study revealed that G3-PAMAM showed reduced particle retention in tumor tissue due to its small size and weak cell internalization, while G7-PAMAM was much less penetrative because of its relatively large size and strong particle-cell interaction. In contrast, G5-PAMAM exhibited balanced tumor penetration, cell internalization, and tumor retention. Our finding highlights the huge influence of the subtle difference of small NPs in their intratumor performance.
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Affiliation(s)
| | - Jing Liu
- School of Life Sciences , University of Science and Technology of China , Hefei , Anhui 230027 , P. R. China
| | - Ying-Li Luo
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction , South China University of Technology , Guangzhou 510006 , P. R. China
| | | | | | - Jin-Zhi Du
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory , Guangzhou 510005 , China
| | - Jun Wang
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction , South China University of Technology , Guangzhou 510006 , P. R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory , Guangzhou 510005 , China
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12
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Zhang Y, Shen S, Zhao G, Xu CF, Zhang HB, Luo YL, Cao ZT, Shi J, Zhao ZB, Lian ZX, Wang J. In situ repurposing of dendritic cells with CRISPR/Cas9-based nanomedicine to induce transplant tolerance. Biomaterials 2019; 217:119302. [PMID: 31271858 DOI: 10.1016/j.biomaterials.2019.119302] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 12/27/2022]
Abstract
Organ transplantation is the only effective method to treat end-stage organ failure. However, it is continuously plagued by immune rejection, which is mostly caused by T cell-mediated reactions. Dendritic cells (DCs) are professional antigen-presenting cells, and blocking the costimulatory signaling molecule CD40 in DCs inhibits T cell activation and induces transplant tolerance. In this study, to relieve graft rejection, Cas9 mRNA (mCas9) and a guide RNA targeting the costimulatory molecule CD40 (gCD40) were prepared and encapsulated into poly(ethylene glycol)-block-poly(lactide-co-glycolide) (PEG-b-PLGA)-based cationic lipid-assisted nanoparticles (CLAN), denoted CLANmCas9/gCD40. CLAN effectively delivered mCas9/gCD40 into DCs and disrupted CD40 in DCs at the genomic level both in vitro and in vivo. After intravenous injection into an acute mouse skin transplant model, CLANmCas9/gCD40-mediated CD40 disruption significantly inhibited T cell activation, which reduced graft damage and prolonged graft survival. This work provides a promising strategy for reprogramming DCs with nanoparticles carrying the CRISPR/Cas9 system to abate transplant rejection.
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Affiliation(s)
- Yue Zhang
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China; Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, 230027, PR China
| | - Song Shen
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Gui Zhao
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China; Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, 230027, PR China
| | - Cong-Fei Xu
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China; Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, PR China.
| | - Hou-Bing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, 230027, PR China
| | - Ying-Li Luo
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, PR China
| | - Zhi-Ting Cao
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China
| | - Jia Shi
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China
| | - Zhi-Bin Zhao
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Zhe-Xiong Lian
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Jun Wang
- Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, PR China.
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13
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Liu J, Li HJ, Luo YL, Xu CF, Du XJ, Du JZ, Wang J. Enhanced Primary Tumor Penetration Facilitates Nanoparticle Draining into Lymph Nodes after Systemic Injection for Tumor Metastasis Inhibition. ACS Nano 2019; 13:8648-8658. [PMID: 31328920 DOI: 10.1021/acsnano.9b03472] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Lymph nodes (LNs) are normally the primary site of tumor metastasis, and effective delivery of chemotherapeutics into LNs through systemic administration is critical for metastatic cancer treatment. Here, we uncovered that improved perfusion in a primary tumor facilitates nanoparticle translocation to LNs for inhibiting tumor metastasis. On the basis of our finding that an iCluster platform, which undergoes size reduction from ∼100 nm to ∼5 nm at the tumor site, markedly improved particle perfusion in the interstitium of the primary tumor, we further revealed in the current study that such tumor-specific size transition promoted particle intravasation into tumor lymphatics and migration into LNs. Quantitative analysis indicated that the drug deposition in LNs after iCluster treatment was significantly higher in the presence of a primary tumor in comparison with that after primary tumor resection. Early intervention of metastatic 4T1 tumors with iCluster chemotherapy and subsequent surgical resection of the primary tumor resulted in significantly extending animal survival, with 4 out of the 10 mice remaining completely tumor-free for 110 days. Additionally, in the more clinical relevant late metastatic model, iCluster inhibited the metastatic colonies to the lungs and extended animal survival time. This finding provides insights into the design of more effective nanomedicines for treating metastatic cancer.
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Affiliation(s)
- Jing Liu
- School of Life Sciences , University of Science and Technology of China , Hefei , Anhui 230027 , P.R. China
| | | | | | | | | | - Jin-Zhi Du
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory , Guangzhou 510005 , P.R. China
| | - Jun Wang
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory , Guangzhou 510005 , P.R. China
- Research Institute for Food Nutrition and Human Health , South China University of Technology , Guangzhou 510641 , P.R. China
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14
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Fan PF, Yang Q, Mao YR, Hu Q, Tang HL, Li J, Luo YL, Wang F, Zhan HQ, Zang SM. [Follow-up of people living with HIV/AIDS by primary health care institutions in rural area of Jiangxi province]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:346-349. [PMID: 30884616 DOI: 10.3760/cma.j.issn.0254-6450.2019.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the current status of follow up of people living with HIV/AIDS by health service at grass root in rural area of Jiangxi province and related factors, and provide references for the promotion of the follow up by grass root health service. Methods: People living HIV/AIDS aged ≥18 years and diagnosed before 31 December 2017 in 6 townships of Xinjian, Yushan counties and Guixi city were included in the study in Jiangxi province. They had been followed up for more than one time after the first epidemiologic survey. The information about their demographic characteristics and HIV infection status were collected by using self-designed questionnaire. Univariate and multivariate logistic regression analyses were conducted to identify the factors that influencing the acceptance of follow up by grass root health service. Results: Of the 373 surveyed HIV infected subjects aged (53.06±16.15) years, 261 were males (70.0%, 261/373). Among the surveyed subjects, the illiteracy and people who received only primary school education accounted for 54.7% (204/373). The rate of follow up of the HIV infected subjects by grass root health service was 55.8% (208/373), and those through heterosexual contact were 58.5% (190/325). The multivariate regression analysis showed that the acceptance of follow up by grass root health service was higher in those who were farmers (OR=7.36, 95%CI: 2.52-21.45), had family support (OR=16.01, 95%CI: 2.25-49.73), didn't worry about discrimination (OR=12.97, 95%CI: 4.75-35.42), trusted health care provider (OR=5.07, 95%CI: 2.19-11.76) and showed AIDS symptoms (OR=10.58, 95%CI: 2.25- 49.73). Conclusions: The performance of follow up of people living with HIV/AIDS by grass root health service was well, suggesting it is a feasible management model. Being famer or not, family member supporting or not, worry about discrimination or not, trusting health care provider or not and showing AIDS symptoms or not were the main factors influencing the acceptance of follow up by grass root health service.
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Affiliation(s)
- P F Fan
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Yang
- Jiangxi Provincial Center for Disease Control and Prevention, Nanchang 330029, China
| | - Y R Mao
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Hu
- Jiangxi Provincial Center for Disease Control and Prevention, Nanchang 330029, China
| | - H L Tang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Li
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y L Luo
- Jiangxi Provincial Center for Disease Control and Prevention, Nanchang 330029, China
| | - F Wang
- Xinjian County Center for Disease Control and Prevention, Xinjian 330100, China
| | - H Q Zhan
- Yushan County Institute of Dermatosis and Sexually Transmitted Disease Prevention and Treatment, Yushan 334700, China
| | - S M Zang
- Guixi City Center for Disease Control and Prevention, Guixi 335400, China
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15
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Xu CF, Iqbal S, Shen S, Luo YL, Yang X, Wang J. Development of "CLAN" Nanomedicine for Nucleic Acid Therapeutics. Small 2019; 15:e1900055. [PMID: 30884095 DOI: 10.1002/smll.201900055] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [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: 01/04/2019] [Revised: 02/19/2019] [Indexed: 05/17/2023]
Abstract
Nucleic acid-based macromolecules have paved new avenues for the development of therapeutic interventions against a spectrum of diseases; however, their clinical translation is limited by successful delivery to the target site and cells. Therefore, numerous systems have been developed to overcome delivery challenges to nucleic acids. From the viewpoint of clinical translation, it is highly desirable to develop systems with clinically validated materials and controllability in synthesis. With this in mind, a cationic lipid assisted PEG-b-PLA nanoparticle (CLAN) is designed that is capable of protecting nucleic acids via encapsulation inside the aqueous core, and delivers them to target cells, while maintaining or improving nucleic acid function. The system is formulated from clinically validated components (PEG-b-PLA and its derivatives) and can be scaled-up for large scale manufacturing, offering potential for its future use in clinical applications. Here, the development and working mechanisms of CLANs, the ways to improve its delivery efficacy, and its application in various disease treatments are summarized. Finally, a prospective for the further development of CLAN is also discussed.
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Affiliation(s)
- Cong-Fei Xu
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangdong, 510006, Guangzhou, China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Shoaib Iqbal
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China
| | - Song Shen
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangdong, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ying-Li Luo
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangdong, 510006, Guangzhou, China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, P. R. China
| | - Xianzhu Yang
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangdong, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
| | - Jun Wang
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangdong, 510006, Guangzhou, China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
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16
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Liu Y, Zhao G, Xu CF, Luo YL, Lu ZD, Wang J. Systemic delivery of CRISPR/Cas9 with PEG-PLGA nanoparticles for chronic myeloid leukemia targeted therapy. Biomater Sci 2018; 6:1592-1603. [PMID: 29725684 DOI: 10.1039/c8bm00263k] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Chronic myeloid leukemia (CML), which is characterized by the Philadelphia translocation, which fuses breakpoint cluster region (BCR) sequences from chromosome 22 upstream of the Abelson murine leukemia viral oncogene homolog (ABL) on chromosome 9, requires specific and efficient treatment. The CRISPR/Cas9 system, with its mechanism of specific DNA complementary recognition by engineered guide RNA (gRNA), allows the development of novel therapeutics for CML. To achieve targeted therapy of CML with the CRISPR/Cas9 system, we encapsulated a CRISPR/Cas9 plasmid (pCas9) expressing gRNA targeting the overhanging fusion region of the BCR-ABL gene (pCas9/gBCR-ABL) with poly(ethylene glycol)-b-poly(lactic acid-co-glycolic acid) (PEG-PLGA)-based cationic lipid-assisted polymeric nanoparticles (CLANs), which specifically disrupted the CML-related BCR-ABL gene while sparing the BCR and ABL genes in normal cells. After intravenous injection, CLANs carrying pCas9/gBCR-ABL (CLANpCas9/gBCR-ABL) efficiently knocked out the BCR-ABL fusion gene of CML cells and improved the survival of a CML mouse model, indicating that the combination of the CRISPR/Cas9 system with nanocarriers is a promising strategy for targeted treatment of CML.
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Affiliation(s)
- Yang Liu
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China
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17
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Fan YN, Li M, Luo YL, Chen Q, Wang L, Zhang HB, Shen S, Gu Z, Wang J. Cationic lipid-assisted nanoparticles for delivery of mRNA cancer vaccine. Biomater Sci 2018; 6:3009-3018. [PMID: 30264063 DOI: 10.1039/c8bm00908b] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Message RNA-based vaccines with prominent advantages such as facile production, no requirement for nuclear entry and high safety without the need for integration into host genome have been shown to be potent activators of the cytotoxic immune system. However, wider applications of mRNA-based therapeutics have been hindered because of their intrinsically high vulnerability to expressed nucleases and difficulty while entering antigen-presenting cells (APCs) directly. Here, we investigated the potential of cationic lipid-assisted nanoparticles (CLAN), which form a clinically translatable nucleic acid delivery system working as a carrier of an mRNA vaccine. We found that CLAN encapsulating mRNA encoding antigen could effectively stimulate the maturation of dendritic cells (DCs) and promote the activation and proliferation of antigen-specific T cells both in vitro and in vivo. Intravenous immunization of mice with CLAN containing mRNA encoding ovalbumin (OVA) provoked a strong OVA-specific T-cell response and slowed tumor growth in an aggressive E·G7-OVA lymphoma model. Collectively, CLAN proved to be a promising platform for mRNA vaccine delivery.
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Affiliation(s)
- Ya-Nan Fan
- School of Life Sciences, University of Science & Technology of China, Hefei, Anhui 230027, P. R. China
| | - Min Li
- School of Life Sciences, University of Science & Technology of China, Hefei, Anhui 230027, P. R. China
| | - Ying-Li Luo
- School of Life Sciences, University of Science & Technology of China, Hefei, Anhui 230027, P. R. China
| | - Qian Chen
- Department of Bioengineering, California Nanosystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Li Wang
- School of Life Sciences, University of Science & Technology of China, Hefei, Anhui 230027, P. R. China
| | - Hou-Bing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Song Shen
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China. and National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China and Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, P. R. China
| | - Zhen Gu
- Department of Bioengineering, California Nanosystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Jun Wang
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China. and National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China and Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China
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18
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Wang JL, Du XJ, Yang JX, Shen S, Li HJ, Luo YL, Iqbal S, Xu CF, Ye XD, Cao J, Wang J. The effect of surface poly(ethylene glycol) length on in vivo drug delivery behaviors of polymeric nanoparticles. Biomaterials 2018; 182:104-113. [PMID: 30114562 DOI: 10.1016/j.biomaterials.2018.08.022] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [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: 06/17/2018] [Revised: 08/06/2018] [Accepted: 08/06/2018] [Indexed: 12/29/2022]
Abstract
Engineering nanoparticles of reasonable surface poly(ethylene glycol) (PEG) length is important for designing efficient drug delivery systems. Eliminating the disturbance by other nanoproperties, such as size, PEG density, etc., is crucial for systemically investigating the impact of surface PEG length on the biological behavior of nanoparticles. In the present study, nanoparticles with different surface PEG length but similar other nanoproperties were prepared by using poly(ethylene glycol)-block-poly(ε-caprolactone) (PEG-b-PCL) copolymers of different molecular weights and incorporating different contents of PCL3500 homopolymer. The molecular weight of PEG block in PEG-PCL was between 3400 and 8000 Da, the sizes of nanoparticles were around 100 nm, the terminal PEG density was controlled at 0.4 PEG/nm2 (or the frontal PEG density was controlled at 0.16 PEG/nm2). Using these nanoproperties well-designed nanoparticles, we demonstrated PEG length-dependent changes in the biological behaviors of nanoparticles and exhibited nonmonotonic improvements as the PEG molecular weight increased from 3400 to 8000 Da. Moreover, under the experimental conditions, we found nanoparticles with a surface PEG length of 13.8 nm (MW = 5000 Da) significantly decreased the absorption with serum protein and interaction with macrophages, which led to prolonged blood circulation time, enhanced tumor accumulation and improved antitumor efficacy. The present study will help to establish a relatively precise relationship between surface PEG length and the in vivo behavior of nanoparticles.
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Affiliation(s)
- Ji-Long Wang
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China
| | - Xiao-Jiao Du
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China.
| | - Jin-Xian Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Song Shen
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China
| | - Hong-Jun Li
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China
| | - Ying-Li Luo
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, PR China
| | - Shoaib Iqbal
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, PR China
| | - Cong-Fei Xu
- Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, PR China
| | - Xiao-Dong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Jie Cao
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, PR China.
| | - Jun Wang
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, PR China; Institutes for Life Sciences, School of Biomedical Science and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 510006, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, PR China.
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19
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Liu Y, Cao ZT, Xu CF, Lu ZD, Luo YL, Wang J. Optimization of lipid-assisted nanoparticle for disturbing neutrophils-related inflammation. Biomaterials 2018; 172:92-104. [PMID: 29723758 DOI: 10.1016/j.biomaterials.2018.04.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 03/05/2018] [Revised: 04/22/2018] [Accepted: 04/25/2018] [Indexed: 12/31/2022]
Abstract
Inflammation is closely related to the development of many diseases and is commonly characterized by abnormal infiltration of immune cells, especially neutrophils. The current therapeutics of inflammatory diseases give little attention to direct modulation of these diseases with respect to immune cells. Nanoparticles are applied for efficient drug delivery into the disease-related immune cells, but their performance is significantly affected by their surface properties. In this study, to optimize the properties of nanoparticles for modulating neutrophils-related inflammation, we prepared a library of poly(ethylene glycol)-b-poly(lactide-co-glycolide) (PEG-b-PLGA)-based cationic lipid-assisted nanoparticles (CLANs) with different surface PEG density and surface charge. Optimized CLANs for neutrophils targeting were screened in high-fat diet (HFD)-induced type 2 diabetes (T2D) mice. Then, a CRISPR-Cas9 plasmid expressing a guide RNA (gRNA) targeting neutrophil elastase (NE) was encapsulated into the optimized CLAN and denoted as CLANpCas9/gNE. After intravenous injection, CLANpCas9/gNE successfully disrupted the NE gene of neutrophils and mitigated the insulin resistance of T2D mice via reducing the inflammation in epididymal white adipose tissue (eWAT) and in the liver. This strategy provides an example of abating the inflammatory microenvironment by directly modulating immune cells with nanoparticles carrying genome editing tools.
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Affiliation(s)
- Yang Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China
| | - Zhi-Ting Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China
| | - Cong-Fei Xu
- Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China.
| | - Zi-Dong Lu
- Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Ying-Li Luo
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China
| | - Jun Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China; School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China.
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Luo YL, Xu CF, Li HJ, Cao ZT, Liu J, Wang JL, Du XJ, Yang XZ, Gu Z, Wang J. Macrophage-Specific in Vivo Gene Editing Using Cationic Lipid-Assisted Polymeric Nanoparticles. ACS Nano 2018; 12:994-1005. [PMID: 29314827 DOI: 10.1021/acsnano.7b07874] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The CRISPR/Cas9 gene editing technology holds promise for the treatment of multiple diseases. However, the inability to perform specific gene editing in targeted tissues and cells, which may cause off-target effects, is one of the critical bottlenecks for therapeutic application of CRISPR/Cas9. Herein, macrophage-specific promoter-driven Cas9 expression plasmids (pM458 and pM330) were constructed and encapsulated in cationic lipid-assisted PEG-b-PLGA nanoparticles (CLAN). The obtained nanoparticles encapsulating the CRISPR/Cas9 plasmids were able to specifically express Cas9 in macrophages as well as their precursor monocytes both in vitro and in vivo. More importantly, after further encoding a guide RNA targeting Ntn1 (sgNtn1) into the plasmid, the resultant CLANpM330/sgNtn1 successfully disrupted the Ntn1 gene in macrophages and their precursor monocytes in vivo, which reduced expression of netrin-1 (encoded by Ntn1) and subsequently improved type 2 diabetes (T2D) symptoms. Meanwhile, the Ntn1 gene was not disrupted in other cells due to specific expression of Cas9 by the CD68 promoter. This strategy provides alternative avenues for specific in vivo gene editing with the CRISPR/Cas9 system.
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Affiliation(s)
- Ying-Li Luo
- School of Life Sciences, University of Science and Technology of China , Hefei, Anhui 230027, People's Republic of China
| | - Cong-Fei Xu
- Institutes for Life Sciences and School of Medicine, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
| | - Hong-Jun Li
- Institutes for Life Sciences and School of Medicine, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
| | - Zhi-Ting Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei, Anhui 230027, People's Republic of China
| | - Jing Liu
- School of Life Sciences, University of Science and Technology of China , Hefei, Anhui 230027, People's Republic of China
| | - Ji-Long Wang
- School of Life Sciences, University of Science and Technology of China , Hefei, Anhui 230027, People's Republic of China
| | - Xiao-Jiao Du
- Institutes for Life Sciences and School of Medicine, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
| | - Xian-Zhu Yang
- Institutes for Life Sciences and School of Medicine, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Jun Wang
- School of Life Sciences, University of Science and Technology of China , Hefei, Anhui 230027, People's Republic of China
- Institutes for Life Sciences and School of Medicine, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou, Guangdong 510006, People's Republic of China
- Research Institute for Food Nutrition and Human Health , Guangzhou, Guangdong 510006, People's Republic of China
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Luo YL, Wu JB, Luo M. [Impact of platelet mRNA/miRNA transfer on vascular cell function]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:161-164. [PMID: 29495242 DOI: 10.3760/cma.j.issn.0253-3758.2018.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Shen S, Zhang Y, Chen KG, Luo YL, Wang J. Cationic Polymeric Nanoparticle Delivering CCR2 siRNA to Inflammatory Monocytes for Tumor Microenvironment Modification and Cancer Therapy. Mol Pharm 2018; 15:3642-3653. [PMID: 29337566 DOI: 10.1021/acs.molpharmaceut.7b00997] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Accumulating evidence has confirmed that malignant tumors have a complex microenvironment, which consists of a heterogeneous collection of tumor cells and other cell subsets (including the full gamut of immune cells). Tumor-associated macrophages (TAMs), derived from circulating Ly6Chi monocytes, constitute the most substantial fraction of tumor-infiltrating immune cells in nearly all cancer types and contribute to tumor progression, vascularization, metastasis, immunosuppression, and therapeutic resistance. Interrupting monocyte recruitment to tumor tissues by disturbing pivotal signaling pathways (such as CCL2-CCR2) is viewed as one of the most promising avenues for tumor microenvironment manipulation and cancer therapy. One critical issue for monocyte-based therapy is to deliver therapeutic agents into monocytes efficiently. In the present study, we systematically investigated the relationship between the surface potential and the biodistribution of polymeric nanoparticles in monocytes in vivo, aiming to screen and identify an appropriate delivery system for monocyte targeting, and we found that cationic nanoparticles have a higher propensity to accumulate in monocytes compared with their neutral counterparts. We further demonstrated that siCCR2-encapsulated cationic nanoparticle (CNP/siCCR2) could modify immunosuppressive tumor microenvironment more efficiently and exhibit superior antitumor effect in an orthotopic murine breast cancer model.
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Affiliation(s)
- Song Shen
- Institutes for Life Sciences and School of Medicine , South China University of Technology , Guangzhou , Guandong 510006 , P. R. China.,National Engineering Research Center for Tissue Restoration and Reconstruction , Guangzhou , Guangdong 510006 , P. R. China
| | - Yue Zhang
- School of Life Sciences , University of Science & Technology of China , Hefei , Anhui 230027 , P. R. China
| | - Kai-Ge Chen
- School of Life Sciences , University of Science & Technology of China , Hefei , Anhui 230027 , P. R. China
| | - Ying-Li Luo
- School of Life Sciences , University of Science & Technology of China , Hefei , Anhui 230027 , P. R. China
| | - Jun Wang
- School of Life Sciences , University of Science & Technology of China , Hefei , Anhui 230027 , P. R. China.,Institutes for Life Sciences and School of Medicine , South China University of Technology , Guangzhou , Guandong 510006 , P. R. China.,National Engineering Research Center for Tissue Restoration and Reconstruction , Guangzhou , Guangdong 510006 , P. R. China.,Research Institute for Food Nutrition and Human Health , South China University of Technology , Guangzhou 510641 , P. R. China
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Xie ZR, Luo YL, Xiao FM, Liu Q, Ma Y. Health-related quality of life of patients with intermediate hepatocellular carcinoma after liver resection or transcatheter arterial chemoembolization. Asian Pac J Cancer Prev 2016; 16:4451-6. [PMID: 26028113 DOI: 10.7314/apjcp.2015.16.10.4451] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The aim of our present study was to compare quality of life (QoL) between intermediate-stage (BCLC-B) HCC patients who had undergone either liver resection or transcatheter arterial chemoembolization (TACE). MATERIALS AND METHODS A total of 102 intermediate-stage HCC patients participated in our study, including 58 who had undergone liver resection and 44 who had undergone TACE. Baseline demographic characteristics, tumor characteristics, and long-term outcomes, such as tumor recurrence, were compared and analyzed. QoL was assessed using the Short Form (SF)-36 health survey questionnaire with the mental and physical component scales (SF-36 MCS and PCS). This questionnaire was filled out at HCC diagnosis and 1, 3, 6, 12, 24 months after surgery. RESULTS For the preoperative QoL evaluation, the 8 domains related to QoL were comparable between the two groups. The PCS and MCS scores were significantly decreased in both the TACE and resection groups at1 month after surgery, and this decrease was greater in the resection group. These scores were significantly lower in the resection group compared with the TACE group (P<0.05). However, these differences disappeared at 3 and 6 months following surgery. One year after surgery, the resection group showed much higher PCS scores than the TACE patients (P=0.018), and at 2 years after surgery, the PCS and MCS scores for the resection group were significantly higher than those for the TACE group (P<0.05). Eleven patients (19.0%) in the resection group and 17 (38.6%) in the TACE group suffered HCC recurrence (P<0.05). Univariate and multivariate analyses indicated that tumor recurrence (HR=1.211, 95%CI: 1.086-1.415, P=0.012) was a significant risk factor for poorpostoperative QoL in the HCC patients. CONCLUSIONS Due to its effects on reducing HCC recurrence and improving long-term QoL, liver resection should be the first choice for the treatment of patients with intermediate-stage HCC.
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Affiliation(s)
- Z R Xie
- Liver Surgery, West China Hospital, Sichuan University, Chengdu, China E-mail :
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Li DF, Yang MF, Shi SL, Du YL, Wang H, Zhou YL, Luo YL, Ren LL, Nie YQ. TM4SF5-CTD-2354A18.1-miR-4697-3P may play a key role in the pathogenesis of gastric cancer. ACTA ACUST UNITED AC 2016; 116:608-15. [PMID: 26531872 DOI: 10.4149/bll_2015_118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AIMS Our aim is to identify important lncRNAs and mRNAs which may play a key role in contributing to pathogenesis of gastric cancer. METHODS Different LncRNAs and mRNAs are identified by microarray in gastric cancer tissue and corresponding normal tissues. The function and relationship of different LncRNAs and mRNAs is performed by GO analysis and Pathway analysis and made code-non-code network (CNC) by Pearson correlation coefficients (PCC). Then mRNA-miRNA relationship is predicted through mRNA-miRNA relationship software (http://www.targetscan.org). Lastly, mRNA-miRNA-LncRNA network is established for further research. RESULTS The expression profiles of 3732 lncRNAs showed different expression (fold change (FC)≥2.0, p<0.05) in gastric cancer tissue and normal tissue and expression profiles of 3994 mRNAs also showed different expression (FC≥2.0, p<0.05) in gastric cancer and corresponding normal tissue. CONCLUSION The expression of TM4SF5, CTD-2354A18.1 and miR-4697-3P is in balance at physiological conditions, however, the balance is disrupted by some situations, which may contribute to gastric cancer. GO analysis and Pathway analysis also showed TM4SF5 played an important role in proliferation, differentiation and apoptosis. Therefore, TM4SF5-miR-4697-3P- CTD-2354A18.1 may play a key role in the pathogenesis of gastric cancer (Tab. 2, Fig. 4, Ref. 30).
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Zuo ZQ, Chen KG, Yu XY, Zhao G, Shen S, Cao ZT, Luo YL, Wang YC, Wang J. Promoting tumor penetration of nanoparticles for cancer stem cell therapy by TGF-β signaling pathway inhibition. Biomaterials 2015; 82:48-59. [PMID: 26751819 DOI: 10.1016/j.biomaterials.2015.12.014] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 12/13/2015] [Indexed: 02/06/2023]
Abstract
Cancer stem cells (CSCs), which hold a high capacity for self-renewal, play a central role in the development, metastasis, and recurrence of various malignancies. CSCs must be eradicated to cure instances of cancer; however, because they can reside far from tumor vessels, they are not easily targeted by drug agents carried by nanoparticle-based drug delivery systems. We herein demonstrate that promoting tumor penetration of nanoparticles by transforming growth factor β (TGF-β) signaling pathway inhibition facilitates CSC therapy. In our study, we observed that although nanoparticles carrying siRNA targeting the oncogene polo-like kinase 1 (Plk1) efficiently killed breast CSCs derived from MDA-MB-231 cells in vitro, this intervention enriched CSCs in the residual tumor tissue following systemic treatment. However, inhibition of the TGF-β signaling pathway with LY364947, an inhibitor of TGF-β type I receptor, promoted the penetration of nanoparticles in tumor tissue, significantly ameliorating the intratumoral distribution of nanoparticles in MDA-MB-231 xenografts and further leading to enhanced internalization of nanoparticles by CSCs. As a result, synergistic treatment with a nanoparticle drug delivery system and LY364947 inhibited tumor growth and reduced the proportion of CSCs in vivo. This study suggests that enhanced tumor penetration of drug-carrying nanoparticles can enhance CSCs clearance in vivo and consequently provide superior anti-tumor effects.
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Affiliation(s)
- Zu-Qi Zuo
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Kai-Ge Chen
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Xiao-Yuan Yu
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Gui Zhao
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Song Shen
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Zhi-Ting Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230027, PR China
| | - Ying-Li Luo
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Yu-Cai Wang
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China
| | - Jun Wang
- The CAS Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, 230027, PR China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230027, PR China; CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; Innovation Center for Cell Signaling Network, University of Science and Technology of China, Hefei, Anhui, 230027, PR China.
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Xie ZR, Luo YL. Utility and cost-effectiveness of screening for hepatocellular carcinoma in a resource-limited setting. Med Oncol 2015; 32:88. [PMID: 25707770 DOI: 10.1007/s12032-015-0534-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 02/13/2015] [Indexed: 02/05/2023]
Affiliation(s)
- Z R Xie
- Liver Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China,
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27
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Lin YH, Luo YL, Lee CC, Yang SF, Yu DS. A PC-based laparoscopic surgery skills training and assessment system. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:498-501. [PMID: 25570005 DOI: 10.1109/embc.2014.6943637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The purpose of this study is to build a cost-effective and easy-to-popularize laparoscopic training system based on improving traditional training box. The system has the capability of objective skills assessment and the function of automatic recording of training process and results, as well as 3-dimensional coordinate tracking of instruments. The results of pilot experiment in laparoscopic-assisted grip skill assessment had been shown the system can assess the different grip ability level between the senior surgeons and junior residents. Regarding to the evaluation of training effectiveness, five subjects without laparoscopic surgery experiences were asked to perform grip training for five days to observe their training curves. According to the experimental results, the total time taken for subject 1 to subject 5 are improved by 54.9%, 52.0%, 60.6%, 23.3%, and 63.5% separately.
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Abstract
We show that the Bogoliubov-de Gennes equations for nuclear ground-state wave functions support solutions in which the condensate has a mixture of spin-singlet and spin-triplet pairing. We find that such mixed-spin condensates do not occur when there are equal numbers of neutrons and protons, but only when there is an isospin imbalance. Using a phenomenological Hamiltonian, we predict that such nuclei may occur in the physical region within the proton dripline. We also solve the Bogoliubov-de Gennes equations with variable constraints on the spin-singlet and spin-triplet pairing amplitudes. For nuclei that exhibit this new pairing behavior, the resulting energy surface can be rather soft, suggesting that there may be low-lying excitations associated with the spin mixing.
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Affiliation(s)
- Alexandros Gezerlis
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
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Liu Y, Gu ZM, Luo YL. Some additional data to the occurrence, morphology and validity of Myxobolus turpisrotundus Zhang, 2009 (Myxozoa: Myxosporea). Parasitol Res 2010; 107:67-73. [PMID: 20352450 DOI: 10.1007/s00436-010-1835-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Accepted: 03/04/2010] [Indexed: 10/19/2022]
Abstract
Myxobolus turpisrotundus Zhang, 2009, infects allogynogenetic gibel carp Carassius auratus gibelio (Bloch) and is always regarded as synonymous with Myxobolus rotundus Nemeczek, 1911, since its first report in goldfish Carassius auratus auratus (L.) in China in 1955. In this study, it was comprehensively examined by morphological and molecular biological methods. The round spores of M. turpisrotundus are similar to those of M. rotundus from common bream Abramis brama (L.) in morphology; however, we detected slight differences in morphometry. The ratios of the length and width of the spore to the length and width of the polar capsule of M. turpisrotundus are usually below 2.0 and 1.9, respectively, however these ratios are always above 2.0 and 1.9 in M. rotundus. The plasmodium size of M. turpisrotundus is 600-6,200 microm in diameter and that of M. rotundus is 60-180 microm in diameter. Scanning observation showed the spore surface of M. turpisrotundus was generally pitted. Yet the surface of M. rotundus is smooth. Sequence comparison revealed the small subunit ribosomal RNA gene sequence of M. turpisrotundus did not match any published sequences of M. rotundus (EU710583, 85% over 742 bp; FJ851447, 85% over 742 bp, FJ851448, 85% over 742 bp; FJ851449, 85% over 742 bp). Moreover, phylogenetic analysis showed M. turpisrotundus clustered with the species from allogynogenetic gibel carp with high bootstrap values (100% neighbor-joining, NJ; 100% maximum parsimony, MP) and M. rotundus from common bream composed a new cluster with high bootstrap values (100% NJ, 100% MP). From the morphological and molecular biological data, we gain enough evidences to support the validity of M. turpisrotundus.
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Affiliation(s)
- Y Liu
- College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, People's Republic of China
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30
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Luo YL, Cheng RX, Feng DY. [Role of functional inactivation of p53 from MDM2 overexpression in hepatocarcinogenesis]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:13-6. [PMID: 12536604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
OBJECTIVE This paper was to evaluate the role of p53 mutation, and p53 and MDM2 proteins expression in hepatocarcinogenesis. METHODS Using streptavidin-peroxidase conjugation method (SP), the expression of p53 and MDM2 proteins was observed in 61 cases of primary hepatocarcinomas (HCC) and 59 cases of corresponding paracancerous tissue, among which p53 mutations in exons 5-8 were detected in 21 cases by polymerase chain reaction single-strand confirmation polymorphism analysis (PCR-SSCP). RESULTS Positive nuclear p53 and MDM2 immunostainings were demonstrated in 57.38% (35/61) and 26.23% (16/61) of HCC, and 1.69% (1/59) and 3.39% (2/59) of corresponding paracancerous tissue, respectively. The expressions of p53 and MDM2 proteins in HCCs were significantly higher than those in paracancerous tissues (P < 0.01). The expressions of p53 and MDM2 were not significantly correlated (P > 0.05). There were 42.86% (9/21) mutations in exon 7 of p53 gene and no mutation was observed in exons 5, 6, 8 in HCCs and in paracancerous tissues. In cases of p53 mutations, there were 66.67% (6/9) of p53 overexpression and 11.11% (1/9) of overexpression of both p53 and MDM2. MDM2 overexpression also appeared in 25% (3/12) of cases without mutation. CONCLUSIONS Mutation of p53 gene and functional inactivation of p53 resulting from MDM2 overexpression play an important role in carcinogenesis of HCC. It is possible that p53 mutations and MDM2 overexpression induced by other mechanisms are involved in carcinogenesis of HCC.
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Affiliation(s)
- Y L Luo
- Department of Pathology, Xiangya Medical College, Central South University, Changsha 410078
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Sang QX, Jia MC, Schwartz MA, Jaye MC, Kleinman HK, Ghaffari MA, Luo YL. New thiol and sulfodiimine metalloproteinase inhibitors and their effect on human microvascular endothelial cell growth. Biochem Biophys Res Commun 2000; 274:780-6. [PMID: 10924354 DOI: 10.1006/bbrc.2000.3212] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Matrix metalloproteinases (MMPs, matrixins) are a family of homologous zinc endopeptidases that may play a very important role in many physiological and pathological processes, e.g., the initiation of angiogenesis. Two new matrixin inhibitors were synthesized and characterized. A thiol inhibitor MAG-283 had IC(50) values of 480, 3, 280, 14, 1.1, and 2.3 nM against human interstitial collagenase (MMP-1), gelatinase A (MMP-2), stromelysin (MMP-3), matrilysin (MMP-7), neutrophil collagenase (MMP-8), and gelatinase B (MMP-9), respectively. A sulfodiimine inhibitor YLL-224 had IC(50) values of 180, 63, 4500, 210, 5.9, and 44 nM against MMP-1, -2, -3, -7, -8, and -9, respectively. Human skin microvascular endothelial cells were treated with these two compounds in culture. These inhibitors at very low micromolar concentrations suppressed proliferation of the endothelial cells stimulated by acidic fibroblast growth factor and vascular endothelial growth factor. They also partially blocked cell invasion through type IV collagen. These results suggested a correlation between the anti-metalloenzyme activity and the effects of these inhibitors on the growth and invasion of endothelial cells.
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Affiliation(s)
- Q X Sang
- Department of Chemistry, Institute of Molecular Biophysics, Tallahassee, Florida, 32306-4390, USA.
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Chen JW, Luo YL, Hwang MJ, Peng FC, Ling KH. Territrem B, a tremorgenic mycotoxin that inhibits acetylcholinesterase with a noncovalent yet irreversible binding mechanism. J Biol Chem 1999; 274:34916-23. [PMID: 10574966 DOI: 10.1074/jbc.274.49.34916] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Territrem B (TRB) is a fungal metabolite isolated from Aspergillus terreus shown previously to be a potent and irreversible inhibitor of acetylcholinesterase (AChE). In the present study, a number of binding and inhibition assays were carried out to further characterize the inhibitory effect of TRB. The results indicate that the binding of TRB (a) is much more selective than a well characterized selective inhibitor of AChE, BW284C51, (b) adopts a one-to-one stoichiometry with the enzyme, (c) cannot be undone by an AChE-regenerating oxime agent, which contrasts the ability of 8 M urea to release AChE-bound TRB, (d) is enhanced by high concentration NaCl but prevented, unless preincubated, by Triton X-100, and (e) exhibits quasi-first order kinetics with an overall inhibition constant of 0.01 nM(-1) min(-1). Together these results suggest a very different irreversible binding (a noncovalent type) from that of the covalent type, which involves typical irreversible AChE inhibitors such as diisopropylfluorophosphate and neostigmine. According to the prediction of a molecular modeling study, the distinct AChE inhibitory characteristics of TRB may arise from the inhibitor being noncovalently trapped within a unique active-site gorge structure of the enzyme. It was predicted that an optimal TRB. AChE binding would position a narrowing connection of the TRB structure at a constricted area near the entrance of the gorge, thereby providing a structural basis for the observed irreversible binding.
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Affiliation(s)
- J W Chen
- Institute of Biochemistry, College of Medicine, National Taiwan University, Taipei, 100 Taiwan
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Cheng CC, Dong Q, Liu DF, Luo YL, Liu LF, Chen AY, Yu C, Savaraj N, Chou TC. Design of antineoplastic agents on the basis of the "2-phenylnaphthalene-type" structural pattern. 2. Synthesis and biological activity studies of benzo]b]naphtho[2,3-d]furan-6,11-dione derivatives. J Med Chem 1993; 36:4108-12. [PMID: 8258835 DOI: 10.1021/jm00077a016] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Based on the "2-phenylnaphthalene-type" structural pattern hypothesis developed in our laboratory, a number of benzo[b]naphtho[2,3-d]furan-6,11-diones were designed, synthesized, and evaluated in vitro for their inhibitory action against the growth of human promyelocytic leukemia cells (HL-60), small-cell lung cancer (SCLC), SCLC cells resistant to cisplatin (SCLC/CDDP), National Cancer Institute's disease-oriented primary antitumor 60 cell-line panel, and drug-stimulated topoisomerase II-mediated DNA cleavages. Many compounds designed were found to possess potent activity in one or more of the biological tests. In general, activity found in one of the cell lines tested is often echoed in other cell lines and many also expressed substantial inhibitory activity against topoisomerase II-mediated cleavage activities. One of these compounds, 3-[2-(dimethylamino)ethoxy]-1-hydroxybenzo[b]naphthol[2,3-d]furan- 6,11-dione (8j), exhibited strong inhibitory activity throughout the entire series of test panel. Thus, it appears that the proposed structural pattern hypothesis has received substantial support through experimental verification.
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Affiliation(s)
- C C Cheng
- Drug Development Laboratory, University of Kansas Cancer Center, Kansas City
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Luo YL, Lin KC, Liu DK, Liu HJ, Luh WT. Collisional deactivation for K in high-lying 2S and 2D states by H2. Phys Rev A 1992; 46:3834-3839. [PMID: 9908574 DOI: 10.1103/physreva.46.3834] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Wu N, Liao GH, Li DF, Luo YL, Zhong GM. The advantages of mosquito biocontrol by stocking edible fish in rice paddies. Southeast Asian J Trop Med Public Health 1991; 22:436-42. [PMID: 1818398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Edible fish stocked in rice fields at a density of 600-800 fry per mu (1 mu = 1/15 hectare) for 150-170 days may act as an effective mosquito biocontrol agent. Common carp (Cyprinus carpio), grass carp Ctenopharyngodon idella) and Tilopia spp. killed late stage larvae and pupae of Anopheles sinensis and Culex tritaeniorrhyncus in laboratory and field trials. Stocking of fish in experimental rice fields decreased larval numbers significantly in comparison with control areas. Expansion of fish stocking in rice fields on a large scale over several years correlated with a marked decrease in malaria transmission. The addition of fish to the rice fields also resulted in increased yields. A ditch-ridge system of field arrangements is described for optimization of fish handling. Preliminary cost-benefit analysis indicates that this approach to mosquito control conveys considerable economic advantage and thus provides incentive to the community to participate in vector control programs. Farmers' experience in Guangxi over a number of years indicates that the use of edible fish for this purpose can be carried on a large, commercially viable scale.
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Affiliation(s)
- N Wu
- Guangxi Institute of Parasitic Diseases Control, Nanning, People's Republic of China
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Luo YL, Kawai M. Semiclassical distorted wave model of nucleon inelastic scattering to continuum. Phys Rev C Nucl Phys 1991; 43:2367-2376. [PMID: 9967287 DOI: 10.1103/physrevc.43.2367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Zhou XZ, Raudsepp M, Pankhurst QA, Morrish AH, Luo YL, Maartense I. Susceptibility, crystal-structure, and Mössbauer study of the high-temperature superconductor YBa2Cu3O7- delta doped with iron. Phys Rev B Condens Matter 1987; 36:7230-7233. [PMID: 9942472 DOI: 10.1103/physrevb.36.7230] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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