1
|
Luo S, Liu Z, Chang H, Cheng X, Qian R, Gao Y, Hou C. Potential value of expression of receptor accessory protein 4 for evaluating the prognosis of lower-grade glioma patients. Aging (Albany NY) 2024; 16:6188-6211. [PMID: 38552216 PMCID: PMC11042925 DOI: 10.18632/aging.205695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 04/23/2024]
Abstract
BACKGROUND REEP4 is involved in the regulation of the biological process of mitosis. Lower grade glioma (LGG), as a malignant tumor, is accompanied by abnormalities in mitosis, but there have been no reports of REEP4 so far. METHODS We collected transcriptome data, DNA methylation data and the clinical characteristics of thousands of patients with LGG. Various big data analysis methods and molecular biology experiments were employed to reveal the impact of REEP4 on the pathological process of LGG. RESULTS It was found that the expression of REEP4 was significantly elevated and negatively regulated by its methylation site. Therefore, both the high expression of REEP4 and low methylation state of cg16311504 showed that the patients are correlated with lower patient survival rate. In addition, high REEP4 expression participates in the regulation of various cancer-related cellular signaling pathways, such as the cell cycle, MAPK signaling pathway, NOD-like receptor signaling pathway, etc. More importantly, the level of immune cell infiltration significantly increased in the high expression group of REEP4 in the LGG tumor microenvironment and REEP4 has a high positive correlation with PD-L1 and other immune checkpoints. CONCLUSIONS In brief, this study is the first to introduce REEP4 in malignant tumors, which can be used as an independent risk factor that participates in the malignant process of LGG. More importantly, REEP4 has the potential to become a new star in the field of anti-tumor treatment.
Collapse
Affiliation(s)
- Shuping Luo
- Department of Colorectal Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou 450003, Henan, China
| | - Haigang Chang
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou 450003, Henan, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou 450003, Henan, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou 450003, Henan, China
| | - Chaofeng Hou
- Department of Colorectal Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| |
Collapse
|
2
|
Chen K, Liang W, Zhu Q, Shen H, Yang Y, Li Y, Li H, Wang Y, Qian R. Clinical Outcomes After Cranioplasty With Titanium Mesh, Polyetheretherketone, or Composite Bone Cement: A Retrospective Study. J Craniofac Surg 2023; 34:2246-2251. [PMID: 37470720 PMCID: PMC10597434 DOI: 10.1097/scs.0000000000009542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/20/2023] [Indexed: 07/21/2023] Open
Abstract
Cranioplasty is a common neurosurgical procedure; however, the optimal material choice remains controversial. At the time of this writing, autologous bone, the preferred choice for primary cranioplasty, has a high incidence of complications such as infection and resorption, thus requiring frequent use of synthetic materials. Therefore, this study aimed to compare the clinical benefits of titanium mesh (Ti), polyetheretherketone (PEEK), and composite bone cement (CBC) in cranioplasty to provide a clear selection basis for clinicians and patients. This study retrospectively collected data from 207 patients who underwent cranioplasty with Ti (n=129), PEEK (n=54), and CBC (n=24) between January 2018 and December 2020 at Henan Provincial People's Hospital. Postoperative follow-up information after 6 months was used to compare the long-term effects of the 3 materials on the patients. There were no significant differences in the overall complication rate after cranioplasty among the 3 materials. However, subcutaneous effusion was more frequent with PEEK (24.07%) and CBC (20.83%) than with Ti (2.33%). Second, there were no significant differences in the increase in Glasgow Outcome Scale and Karnofsky Performance Status scores after cranioplasty among the 3 materials. Finally, we found that PEEK had the highest patient satisfaction and hospitalization cost, whereas the opposite was true for Ti. Although the surgical outcomes of the 3 implant materials were similar, an examination of clinical outcomes such as patient satisfaction showed significant differences, deepening people's perceptions of the 3 materials.
Collapse
Affiliation(s)
- Kui Chen
- Henan University People’s Hospital, Henan Provincial People’s Hospital
| | - Wenjia Liang
- Henan University People’s Hospital, Henan Provincial People’s Hospital
| | - Qingyun Zhu
- School of Clinical Medicine, Henan University, Henan Provincial People’s Hospital
| | - Haoyu Shen
- Zhenzhou University People’s Hospital, Henan Provincial People’s Hospital
| | - Youlei Yang
- Henan University People’s Hospital, Henan Provincial People’s Hospital
- Zhenzhou University People’s Hospital, Henan Provincial People’s Hospital
| | - Yanxin Li
- Zhenzhou University People’s Hospital, Henan Provincial People’s Hospital
| | - Haichun Li
- Department of Neurosurgery, Henan Provincial People’s Hospital
| | - Yonghong Wang
- Department of Neurosurgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People’s Hospital, Henan University People’s Hospital, Zhengzhou University People’s Hospital, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| |
Collapse
|
3
|
Liu Z, Liang W, Zhu Q, Cheng X, Qian R, Gao Y. PSRC1 Regulated by DNA Methylation Is a Novel Target for LGG Immunotherapy. J Mol Neurosci 2023; 73:516-528. [PMID: 37326762 DOI: 10.1007/s12031-023-02133-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 05/28/2023] [Indexed: 06/17/2023]
Abstract
Proline and serine-rich coiled-coil 1 (PSRC1) has been reported to function as an oncogene in several cancers by regulating mitosis, while there are few reports on the role of PSRC1 in lower-grade glioma (LGG). Thus, this study collected 22 samples and 1126 samples from our institution and several databases, respectively, to explore the function of PSRC1 in LGG. First, the analysis of clinical characteristics showed that PSRC1 was always highly expressed in more malignant clinical characteristics of LGG, such as higher WHO grade, recurrence type, and IDH wild type. Second, the prognosis analysis revealed that the high expression of PSRC1 was an independent risk factor contributing to the shorter overall survival of LGG patients. Third, the analysis of DNA methylation showed that the expression of PSRC1 was associated with its 8 DNA methylation sites, overall negatively regulated by its DNA methylation level in LGG. Fourth, the analysis of immune correlation revealed that the expression of PSRC1 was positively correlated with the infiltration of 6 immune cells and the expression of 4 well-known immune checkpoints in LGG, respectively. Finally, co-expression analysis and KEGG analysis showed the 10 genes most related to PSRC1 and the signaling pathways involved by PSRC1 in LGG, respectively, such as MAPK signaling pathway and focal adhesion. In conclusion, this study identified the pathogenic role of PSRC1 in the pathological progression of LGG, expanding the molecular understanding of PSRC1, and provided a biomarker and potential immunotherapeutic target for the treatment of LGG.
Collapse
Affiliation(s)
- Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan Province, China
| | - Wenjia Liang
- People's Hospital of Henan University, Henan Provincial People's Hospital, , Microbiome Laboratory, Zhengzhou, 450003, Henan Province, China
| | - Qingyun Zhu
- Henan University School of Clinical Medicine, Henan Provincial People's Hospital, Microbiome Laboratory, Zhengzhou, 450003, Henan Province, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan Province, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, , Zhengzhou, 450003, Henan Province, China.
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan Province, China.
| |
Collapse
|
4
|
Zhu Q, Liu Z, Cheng X, Liang W, Wang H, Li P, Zhang J, Chen Y, Gao Y, Qian R. ZNF480 influences the prognosis, pathogenesis, and immune microenvironment in patients with lower-grade glioma. Heliyon 2023; 9:e18185. [PMID: 37519705 PMCID: PMC10372659 DOI: 10.1016/j.heliyon.2023.e18185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 06/26/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
ZNF480 has not yet attracted attention in the study of malignant tumors. Therefore, this study attempts to explain the significance of ZNF480 in the pathological process of lower-grade gliomas (LGG) based on large-scale samples from public database sources and in vitro experiments. Reverse transcription quantitative real-time polymerase chain reaction and immunohistochemistry confirmed that ZNF480 was highly expressed at both the mRNA and protein levels in LGG. Prognostic correlation analysis confirmed that the high expression of ZNF480, as an independent pathogenic gene, significantly correlates with poor survival in patients. Furthermore, the expression level of ZNF480 was significantly inhibited in SHG-44 cells treated with ademetionine disulfate tosylate. Gene set enrichment analysis showed that ZNF480 exists in multiple tumor-related signaling pathways, including the Notch signaling pathway. Immunological correlation analysis showed that ZNF480 can promote the LGG microenvironment to a high immune state and significantly enhance the infiltration of various immune cells, such as M2 macrophages. Finally, Spearman analysis showed a positive correlation of ZNF480 with many immune checkpoints, such as PD-L1. Overall, this study reveals for the first time the adverse effects of ZNF480 on the prognosis of tumor patients, which expands our understanding of the molecular mechanisms behind the regulation of ZNF480. We believe that the high expression of ZNF480 in LGG may be valuable for molecular targeted therapy or combined immunotherapy.
Collapse
Affiliation(s)
- Qingyun Zhu
- People's Hospital of Henan University, Henan Provincial People's Hospital, Microbiome Laboratory, Zhengzhou 450003, Henan Province, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou 450003, Henan Province, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou 450003, Henan Province, China
| | - Wenjia Liang
- People's Hospital of Henan University, Henan Provincial People's Hospital, Microbiome Laboratory, Zhengzhou 450003, Henan Province, China
| | - Hongbo Wang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
| | - Pengxu Li
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou 450003, Henan Province, China
| | - Jiangfen Zhang
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou 450003, Henan Province, China
| | - Yusheng Chen
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan Province, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Jinshui District, Zhengzhou 450003, Henan Province, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan Province, China
| |
Collapse
|
5
|
Liang W, Hu C, Zhu Q, Cheng X, Gao S, Liu Z, Wang H, Li P, Gao Y, Qian R. Exploring the relationship between abnormally high expression of NUP205 and the clinicopathological characteristics, immune microenvironment, and prognostic value of lower-grade glioma. Front Oncol 2023; 13:1007198. [PMID: 37284202 PMCID: PMC10240054 DOI: 10.3389/fonc.2023.1007198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 03/29/2023] [Indexed: 06/08/2023] Open
Abstract
Nuclear pore complex (NPC) is a major transport pivot for nucleocytoplasmic molecule exchange. Nucleoporin 205 (NUP205)-a main component of NPC-plays a key regulatory role in tumor cell proliferation; however, few reports document its effect on the pathological progression of lower-grade glioma (LGG). Therefore, we conducted an integrated analysis using 906 samples from multiple public databases to explore the effects of NUP205 on the prognosis, clinicopathological characteristics, regulatory mechanism, and tumor immune microenvironment (TIME) formation in LGG. First, multiple methods consistently showed that the mRNA and protein expression levels of NUP205 were higher in LGG tumor tissue than in normal brain tissue. This increased expression was mainly noted in the higher WHO Grade, IDH-wild type, and 1p19q non-codeleted type. Second, various survival analysis methods showed that the highly expressed NUP205 was an independent risk indicator that led to reduced survival time of patients with LGG. Third, GSEA analysis showed that NUP205 regulated the pathological progress of LGG via the cell cycle, notch signaling pathway, and aminoacyl-tRNA biosynthesis. Ultimately, immune correlation analysis suggested that high NUP205 expression was positively correlated with the infiltration of multiple immune cells, particularly M2 macrophages, and was positively correlated with eight immune checkpoints, particularly PD-L1. Collectively, this study documented the pathogenicity of NUP205 in LGG for the first time, expanding our understanding of its molecular function. Furthermore, this study highlighted the potential value of NUP205 as a target of anti-LGG immunotherapy.
Collapse
Affiliation(s)
- Wenjia Liang
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Microbiome Laboratory, Zhengzhou, Henan, China
| | - Chenchen Hu
- Intensive Care Unit, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qingyun Zhu
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Microbiome Laboratory, Zhengzhou, Henan, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou, Henan, China
| | - Shanjun Gao
- Microbiome Laboratory, Henan Provincial People’s Hospital, Henan University People’s Hospital, Zhengzhou, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou, Henan, China
| | - Hongbo Wang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Pengxu Li
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou, Henan, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Zhengzhou, Henan, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| |
Collapse
|
6
|
Chen K, Andrade-Barazarte H, Liang W, Zhu Q, Guo H, Li Y, Li H, Qian R. Post-traumatic brain injury glioma: Characteristics, report of 2 cases report and literature review. Medicine (Baltimore) 2022; 101:e32477. [PMID: 36596004 PMCID: PMC9803520 DOI: 10.1097/md.0000000000032477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Traumatic brain injury (TBI) as a pathogenetic factor in glioma remains controversial, and currently there is still no clear mechanism behind post-TBI glioma. Thus, we provide two case reports of post-TBI glioma contributing power to this research, and we provide a summary of the mechanisms of post-TBI glioma through literature review. METHODS We report two cases of brain gliomas that developed in the scar of a previous brain trauma. Both patients were male and both had suffered prior traumatic brain injuries (time interval 10-20 years), and postoperative pathological findings reported glioblastoma and WHO grade III glioma, respectively. RESULTS These two cases further support the association of between traumatic brain injury and gliomas development. CONCLUSION Although the epidemiological investigation between TBI and glioma is still controversial, there are still some important aspects here that can determine the possibility between TBI and gliomagenesis. Besides, we found that the reparative response of neural stem cells and the dysregulation of inflammatory cells are timportant theories of the mechanism of post-TBI glioma.
Collapse
Affiliation(s)
- Kui Chen
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Zhengzhou, Henan Province, China
| | - Hugo Andrade-Barazarte
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Wenjia Liang
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Zhengzhou, Henan Province, China
| | - Qingyun Zhu
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Zhengzhou, Henan Province, China
| | - Haixing Guo
- People’s Hospital of Henan University, Henan Provincial People’s Hospital, Zhengzhou, Henan Province, China
| | - Yanxin Li
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Haichun Li
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- * Correspondence: Rongjun Qian, Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, China (e-mail: )
| |
Collapse
|
7
|
Ruan W, Jiao M, Xu S, Ismail M, Xie X, An Y, Guo H, Qian R, Shi B, Zheng M. Brain-targeted CRISPR/Cas9 nanomedicine for effective glioblastoma therapy. J Control Release 2022; 351:739-751. [PMID: 36174804 DOI: 10.1016/j.jconrel.2022.09.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 09/17/2022] [Accepted: 09/22/2022] [Indexed: 11/28/2022]
Abstract
CRISPR/Cas9 gene-editing technology shows great potential for treating a variety of diseases, such as glioblastoma multiforme (GBM). However, CRISPR components suffer from inherent delivery challenges, such as poor in vivo stability of Cas9 protein and gRNA, low blood-brain barrier (BBB) permeability and non-specific tissue or cell targeting. These defects have limited the application of Cas9/gRNA ribonucleoprotein (RNP) complexes for GBM therapy. Here, we developed a brain-targeted CRISPR/Cas9 based nanomedicine by fabricating an angiopep-2 decorated, guanidinium and fluorine functionalized polymeric nanoparticle with loading Cas9/gRNA RNP for the treatment of GBM. The guanidinium and fluorine domains of our polymeric nanoparticles were both capable of interacting with Cas9/gRNA RNP to stabilize it in blood circulation, without impairing its activity. Moreover, by leveraging angiopep-2 peptide functionality, the RNP nanoparticles efficiently crossed the BBB and accumulated in brain tumors. In U87MG cells, we achieved approximately 32% gene knockout and 67% protein reduction in the targeted proto-oncogene polo-like kinase 1 (PLK1). This was sufficient to suppress tumor growth and significantly improved the median survival time of mice bearing orthotopic glioblastoma to 40 days, while inducing negligible side or off-target effects. These results suggest that the developed brain-targeted CRISPR/Cas9 based nanomedicine shows promise for effective human glioblastoma gene therapy.
Collapse
Affiliation(s)
- Weimin Ruan
- Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan 475004, China; Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Mingzhu Jiao
- Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan 475004, China; Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China; Henan Chemical Technician College, Kaifeng, Henan 475002, China
| | - Sen Xu
- Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan 475004, China; Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Muhammad Ismail
- Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan 475004, China; Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Xuan Xie
- Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Science, Henan University, Kaifeng 475004, China
| | - Yang An
- Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Science, Henan University, Kaifeng 475004, China
| | - Haixing Guo
- Department of Neurosurgery, Henan Provincial People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China.
| | - Bingyang Shi
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China; Department of Biomedical Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia.
| | - Meng Zheng
- Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan 475004, China; Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China.
| |
Collapse
|
8
|
Yu Z, Liu Z, Lian X, Cheng X, Liu B, Zhang B, Wang H, Wang J, Li A, Ren Z, Pang B, Qian R, Gao Y. High expression of HOXA4 in patients with glioma indicates unfavorable clinical outcomes. Cell Cycle 2022; 21:2387-2402. [PMID: 35852388 DOI: 10.1080/15384101.2022.2096715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Zhenghong Yu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Xiaoyu Lian
- Department of Surgery of Spine and Spinal Cord, Zhengzhou University People’s Hospital, Henan Provincial People’s Hospital, Henan Zhengzhou, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Binfeng Liu
- Department of Surgery of Spine and Spinal Cord, Zhengzhou University People’s Hospital, Henan Provincial People’s Hospital, Henan Zhengzhou, China
| | - Bo Zhang
- Department of Surgery of Spine and Spinal Cord, Henan University People’s Hospital, Henan Provincial People’s Hospital, Henan Zhengzhou, China
| | - Hongbo Wang
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Jialin Wang
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Ang Li
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| | - Zhishuai Ren
- Department of Surgery of Spine and Spinal Cord, Zhengzhou University People’s Hospital, Henan Provincial People’s Hospital, Henan Zhengzhou, China
| | - Bo Pang
- Department of Neurosurgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, P.R.China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People’s Hospital, People’s Hospital of Henan University, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People’s Hospital, Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, People’s Hospital of Zhengzhou University, People’s Hospital of Henan University, Henan Zhengzhou, China
| |
Collapse
|
9
|
Qian R, Guo M, Li S. Effect of High Molecular Mass Tail in the Mol Mass Distribution of Polypropylene on Injection Molding. INT POLYM PROC 2022. [DOI: 10.1515/217.870174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The effect of high molecular mass (MM) tail in the molecular mass distribution (MMD) of polypropylene (PP) on injection molding has been studied using injection molded tensile bars from a commercial PP resin and two samples of the above resin deprived of the high MM tail in different degrees by controlled degradation during extruder reaction with an added processing aid named Promax. The central portions of the tensile bars were studied by polarizing microscopy of microtomed sections parallel and perpendicular to the melt flow direction, and by density and birefringence profiles across the thickness of the bar. Mechanical properties and acoustic emission behavior in stretching of these injection molded tensile bars are also discussed. The experimental results show that by stripping off the high MM tail in the MMD the injection molded tensile bar has smaller degree of crystallization, less frozen orientation, improved uniformity across the thickness and the thickness of the skin part is greatly reduced. Better quality of the fabricated articles is to be expected by using Promax with PP for injection molding.
Collapse
Affiliation(s)
- R. Qian
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology , Beijing , China
| | - M. Guo
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology , Beijing , China
| | - S. Li
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology , Beijing , China
| |
Collapse
|
10
|
Cheng X, Ren Z, Liu Z, Sun X, Qian R, Cao C, Liu B, Wang J, Wang H, Guo Y, Gao Y. Cysteine cathepsin C: a novel potential biomarker for the diagnosis and prognosis of glioma. Cancer Cell Int 2022; 22:53. [PMID: 35109832 PMCID: PMC8812029 DOI: 10.1186/s12935-021-02417-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 12/17/2021] [Indexed: 11/29/2022] Open
Abstract
Background Cysteine cathepsin C encoded by the CTSC gene is an important member of the cysteine cathepsin family that plays a key role regulation of many types of tumors. However, whether CTSC is involved in the pathological process of glioma has not yet been reported. We comprehensively analyzed data from multiple databases and for the first time revealed a role and specific mechanism of action of CTSC in glioma, identifying it as a novel and efficient biomarker for the diagnosis and treatment of this brain tumor. Methods The expression of CTSC in glioma and its relationship with clinical characteristics and prognosis of patients with glioma were analyzed at different levels by using clinical sample information from several databases. CTSC expression levels in glioma and normal brain tissues, as well as in glioma cells and normal brain cells, was validated by real-time quantitative polymerase chain reaction (RT-qPCR). Gene set enrichment analysis (GSEA) was used to reveal the signaling pathways that CTSC may participate in. The connectivity map was used to reveal small molecules that may inhibit CTSC expression in glioma, and the putative effect of these compounds was verified by RT-qPCR. Results Our analyses showed that the expression of CTSC in glioma was higher than that in non-cancerous cells. GSEA showed that CTSC expression may regulate the malignant development of glioma through Toll-like receptor signaling pathways, pathways in cancer, and extracellular matrix receptor interaction signaling pathways. And we proved piperlongumine and scopoletin could inhibit CTSC expression in glioma cells. Conclusions CTSC may serve as an efficient molecular target for the diagnosis and therapy of glioma, thereby improving the poor prognosis of patients with glioma. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02417-6.
Collapse
Affiliation(s)
- Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7, Weiwu Road, Henan, 450003, Zhengzhou, China
| | - Zhishuai Ren
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7, Weiwu Road, Henan, 450003, Zhengzhou, China
| | - Xiang Sun
- School of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Chen Cao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7, Weiwu Road, Henan, 450003, Zhengzhou, China
| | - Binfeng Liu
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jialin Wang
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hongbo Wang
- Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Yuqi Guo
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7, Weiwu Road, Zhengzhou, Henan, 450003, China. .,Henan International Joint Laboratory for Gynecological Oncology and Nanomedicine, Zhengzhou, Henan, China.
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7, Weiwu Road, Henan, 450003, Zhengzhou, China.
| |
Collapse
|
11
|
Liu Z, Cheng X, Pang B, Wang S, Liu B, Cao C, Qian R, Liang W, Zhu Y, Li P, Gao Y. Effects of ESCO2 or its methylation on the prognosis, clinical characteristics, immune microenvironment, and pathogenesis of low-grade glioma. Int Immunopharmacol 2022; 104:108399. [PMID: 35008004 DOI: 10.1016/j.intimp.2021.108399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/08/2021] [Accepted: 11/20/2021] [Indexed: 11/05/2022]
Abstract
The establishment of sister chromatid cohesion N-acetyltransferase 2 (ESCO2) has an important regulatory effect on cell proliferation and division, which is closely related to the malignant process of glioma cells. Therefore, this study attempts to provide a target for biologically targeted therapy for low-grade glioma (LGG) by demonstrating the regulatory effect of ESCO2 during the pathological process of LGG. First, the 1064 samples of LGG transcriptomic data and corresponding clinicopathological information obtained from various databases were included in the study. Second, the chi-squared test showed that the expression of ESCO2 was associated with the malignant characteristics of LGG (recurrence and grade), and Kaplan Meier and multivariate analysis suggested that ESCO2 was an independent risk factor, resulting in a significant reduction in the overall duration of survival of patients. Third, co-expression analysis showed that the level of mRNA expression of ESCO2 was negatively regulated by multiple methylation sites (cg04108328, cg12564175, and cg26534677), and the hypermethylation status of cg12564175 could prolong the overall survival of patients. Fourth, the Tumor Immune Estimation Resource (TIMER) database shows that ESCO2 can have a positive regulatory relationship with six different immune cells, such as CD8 + T cells and macrophages, and a positive expression relationship with PD-1 and PD-L1. Finally, Gene Set Enrichment Analysis (GSEA) showed that ESCO2 may play a carcinogenic role by affecting cell replication and DNA repair. In summary, this study confirmed the carcinogenic effect of ESCO2 on LGG for the first time. It is speculated that both the mRNA of ESCO2 and its methylation site (cg12564175) can be useful biological targets for molecular targeted therapy of LGG.
Collapse
Affiliation(s)
- Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Xingbo Cheng
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Bo Pang
- Department of Neurosurgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Sen Wang
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Binfeng Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Chen Cao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Rongjun Qian
- Department of Neurosurgery of the Henan Provincial People's Hospital, Henan, Zhengzhou 450003, China.
| | - Wenjia Liang
- Department of Neurosurgery of the Henan Provincial People's Hospital, Henan, Zhengzhou 450003, China
| | - Yongjie Zhu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Pengxu Li
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, Microbiome Laboratory, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Henan, 450003 Zhengzhou, China.
| |
Collapse
|
12
|
Liu Z, Ren Z, Zhang C, Qian R, Wang H, Wang J, Zhang W, Liu B, Lian X, Wang Y, Guo Y, Gao Y. ELK3: A New Molecular Marker for the Diagnosis and Prognosis of Glioma. Front Oncol 2022; 11:608748. [PMID: 34976781 PMCID: PMC8716454 DOI: 10.3389/fonc.2021.608748] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/25/2021] [Indexed: 12/21/2022] Open
Abstract
ETS transcription factor ELK3 (ELK3), a novel oncogene, affects pathological processes and progression of many cancers in human tissues. However, it remains unclear whether ELK3, as a key gene, affects the pathological process of gliomas and the prognosis of patients with gliomas. This study aimed to comprehensively and systematically reveal the correlation between ELK3 and the malignant progression of gliomas by analyzing clinical sample information stored in multiple databases. We revealed the putative mechanism of ELK3 involvement in malignant gliomas progression and identified a new and efficient biomarker for glioma diagnosis and targeted therapy. Based on the sample data from multiple databases and real-time quantitative polymerase chain reaction (RT-qPCR), the abnormally high expression of ELK3 in gliomas was confirmed. Kaplan-Meier and Cox regression analyses demonstrated that a high ELK3 expression was markedly associated with low patient survival and served as an independent biomarker of gliomas. Wilcox and Kruskal-Wallis tests revealed that expression of ELK3 was positively correlated with several clinical characteristics of patients with gliomas, such as age, WHO classification, and recurrence. Moreover, Cell Counting Kit‐8 (CCK-8), immunofluorescence, and wound healing assays confirmed that ELK3 overexpression markedly promoted the proliferation and migration of glioma cells. Finally, gene set enrichment analysis (GSEA) and western blotting confirmed that overexpression of ELK3 regulated the JAK–STAT signaling pathway and upregulate the expression of signal transducer and activator of transcription 3 (STAT3) and phosphorylated STAT3 (P-STAT3) to promote the malignant transition of gliomas. Therefore, ELK3 may serve as an efficient biomarker for the diagnosis and prognosis of gliomas and it can also be used as a therapeutic target to improve the poor prognosis of patients with gliomas.
Collapse
Affiliation(s)
- Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Zhishuai Ren
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Cheng Zhang
- North Broward Preparatory School, Nord Anglia Education, Coconut Creek, FL, United States
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Hongbo Wang
- People's Hospital of Henan University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jialin Wang
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Wang Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Binfeng Liu
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Xiaoyu Lian
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Yanbiao Wang
- People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Yuqi Guo
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China.,Henan International Joint Laboratory for Gynecological Oncology and Nanomedicine, Zhengzhou, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| |
Collapse
|
13
|
Li Y, Ma K, Xie Q, Zhang X, Zhang X, Chen K, Kong L, Qian R. Identification of HOXD10 as a Marker of Poor Prognosis in Glioblastoma Multiforme. Onco Targets Ther 2021; 14:5183-5195. [PMID: 34737577 PMCID: PMC8558040 DOI: 10.2147/ott.s336225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022] Open
Abstract
Purpose HOXD10 is a tumor modulator that can either be a tumor-suppressor or a tumor-promoting gene. However, the role of HOXD10 in glioblastoma multiforme (GBM) remains unclear. Methods Immunohistochemistry (IHC) was applied to detect protein expression of HOXD10 in GBM and normal brain tissue patients. Clinicopathological characteristics with GBM were recorded, and a Kaplan–Meier curve was plotted. Additionally, the mRNA expression of HOXD10 and its effect on prognosis were analyzed using the online tool GEPIA and the Cancer Genome Atlas (TCGA), Chinese Glioma Genome Atlas (CGGA), and the Gene Expression Omnibus (GEO) databases. Based on the mRNA expression of HOXD10, GBM patients from TCGA database were divided into low- and high-HOXD10 expression groups to analyze the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, and construct a lncRNA-miRNA-mRNA network and a protein–protein interaction (PPI) network. Results The mRNA expression of HOXD10 was up-regulated in GBM according to GEPIA, while the protein expression of HOXD10 in GBM was down-regulated according to IHC analysis of samples from patients collected from our hospital. Correlation analysis showed that HOXD10 expression was significantly related to IDH1 status. Univariate analysis revealed that low HOXD10 expression, complete surgical resection, postoperative radiotherapy, postoperative temozolomide chemotherapy and IDH1 mutation were all beneficial prognostic factors. Further multivariate analysis revealed that only complete surgical resection and postoperative radiotherapy were independent prognostic factors. GO and KEGG enrichment analyses indicated that HOXD10 expression is mainly involved in cytokine-cytokine receptor interactions. In the ceRNA network, 89 nodes, containing 45 mRNAs, 39 miRNAs and five lncRNAs associated with prognosis were involved. The PPI network revealed a tight interaction between HOXD10 and HOXD8, HOXD9, HOXD11, HOXD13 and HOXB3. Conclusion Based on our experimental data, although HOXD10 expression is low in GBM compared with normal brain tissue, GBM patients with high HOXD10 expression have a worse prognosis. HOXD10 may play different or even opposite roles in different stages of GBM occurrence and development. For patients with GBM, HOXD10 may be a valid predictor of prognosis.
Collapse
Affiliation(s)
- Yanxin Li
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Ke Ma
- Department of Medical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People's Republic of China
| | - Qi Xie
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Xianwei Zhang
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Xiulei Zhang
- Department of Microbiome Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Kui Chen
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Lingfei Kong
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, 450003, People's Republic of China
| |
Collapse
|
14
|
Jiang T, Qiao Y, Ruan W, Zhang D, Yang Q, Wang G, Chen Q, Zhu F, Yin J, Zou Y, Qian R, Zheng M, Shi B. Cation-Free siRNA Micelles as Effective Drug Delivery Platform and Potent RNAi Nanomedicines for Glioblastoma Therapy. Adv Mater 2021; 33:e2104779. [PMID: 34751990 DOI: 10.1002/adma.202104779] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/21/2021] [Indexed: 05/27/2023]
Abstract
Nanoparticle-based small interfering RNA (siRNA) therapy shows great promise for glioblastoma (GBM). However, charge associated toxicity and limited blood-brain-barrier (BBB) penetration remain significant challenges for siRNA delivery for GBM therapy. Herein, novel cation-free siRNA micelles, prepared by the self-assembly of siRNA-disulfide-poly(N-isopropylacrylamide) (siRNA-SS-PNIPAM) diblock copolymers, are prepared. The siRNA micelles not only display enhanced blood circulation time, superior cell take-up, and effective at-site siRNA release, but also achieve potent BBB penetration. Moreover, due to being non-cationic, these siRNA micelles exert no charge-associated toxicity. Notably, these desirable properties of this novel RNA interfering (RNAi) nanomedicine result in outstanding growth inhibition of orthotopic U87MG xenografts without causing adverse effects, achieving remarkably improved survival benefits. Moreover, as a novel type of polymeric micelle, the siRNA micelle displays effective drug loading ability. When utilizing temozolomide (TMZ) as a model loading drug, the siRNA micelle realizes effective synergistic therapy effect via targeting the key gene (signal transducers and activators of transcription 3, STAT3) in TMZ drug resistant pathways. The authors' results show that this siRNA micelle nanoparticle can serve as a robust and versatile drug codelivery platform, and RNAi nanomedicine and for effective GBM treatment.
Collapse
Affiliation(s)
- Tong Jiang
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Yonghan Qiao
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Weimin Ruan
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Dongya Zhang
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Qingshan Yang
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Guoying Wang
- Huaihe Hosiptal, Henan University, Kaifeng, Henan, 475004, China
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Qunzhi Chen
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Fengping Zhu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jinlong Yin
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Yan Zou
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, China
| | - Meng Zheng
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Bingyang Shi
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China
- Henan-Macquarie University Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| |
Collapse
|
15
|
Kim S, Buss N, Qiao C, Patel H, Yang L, Elliott K, Qian R, Ye L, Fiscella M, Danos O. DMD – ANIMAL MODELS. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
16
|
Wang X, Peng L, Guo H, Hernesniemi J, Xiong X, Andrade-Barazarte H, Qian R. Internal Jugular Vein Fenestration and Duplication: Anatomical Findings, Prevalence, and Literature Review. Front Surg 2020; 7:593367. [PMID: 33282909 PMCID: PMC7691239 DOI: 10.3389/fsurg.2020.593367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/06/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Comprehensive knowledge of the internal jugular vein (IJV) regarding its anatomical variations and the pattern of its course is valuable for preventing unexpected injuries during surgical procedures or central venous access. IJV anatomical anomalies such as fenestration and duplication are rare, mainly represented by case reports, and intraoperative findings. Objective: To present two additional cases of IJV anomalies and highlight its clinical presentation, anatomical characteristics, management, and prevalence through an extensive literature review. Methods and Case Reports: From January 2017 to December 2018, we retrospectively collected data of 221 patients undergoing neck dissection (ND) procedures and identified two patients with IJV anomalies (fenestration and duplication) providing a clinical prevalence of ~0.9%. The IJV fenestration referred to an IJV bifurcation that reunites proximal to the subclavian vein, whereas in the IJV duplication both branches remain separated. In both of our cases, the spinal accessory nerve (SAN) crossed the window between the IJV branches. Conclusion: Anatomical variations are more likely to be identified intraoperatively or incidentally, and due to the risk of SAN and vascular injury, special attention should be taken to identify them preoperatively in order to reduce the risk of iatrogenic injury and unexpected complications.
Collapse
Affiliation(s)
- Xiqian Wang
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| | - Liwei Peng
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| | - Haixing Guo
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| | - Juha Hernesniemi
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| | - Xuepeng Xiong
- Department of Oral and Maxillofacial Head Neck Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hugo Andrade-Barazarte
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| | - Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou University, Henan University, Zhengzhou, China
| |
Collapse
|
17
|
Zhou JG, Hua Y, Liu SW, Hu WQ, Qian R, Xiong L. MicroRNA-1286 inhibits osteogenic differentiation of mesenchymal stem cells to promote the progression of osteoporosis via regulating FZD4 expression. Eur Rev Med Pharmacol Sci 2020; 24:1-10. [PMID: 31957812 DOI: 10.26355/eurrev_202001_19889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate whether microRNA-1286 could inhibit the osteogenic differentiation of human marrow mesenchymal stem cells (hMSCs) by regulating FZD4 expression and promoting the progression of osteoporosis. PATIENTS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the expression of microRNA-1286 in the serum of patients with osteoporosis. Meanwhile, microRNA-1286 expression in different stages of osteogenic differentiation of hMSCs was measured by qRT-PCR as well. After overexpression of microRNA-1286 and FZD4 in hMSCs, the mRNA expression levels of microRNA-1286, alkaline phosphatase (ALP), RUNX2 and osteocalcin (OCN) were detected by qRT-PCR. The protein expression levels of RUNX2 and OCN were detected by Western blot. Meanwhile, alkaline phosphatase (ALP) activity and expression in cells were examined using ALP assay kit and ALP staining method, respectively. Cell mineralized nodules were detected through the alizarin red staining test. Bioinformatics method was used to predict the binding site of microRNA-1286 to FZD4. Subsequent luciferase reporter gene assay was performed to verify whether microRNA-1286 could combine with FZD4. After overexpression or knockdown of microRNA-1286, the mRNA and protein expressions of FZD4 were analyzed using qRT-PCR and Western blot assay, respectively. After the simultaneous overexpression of microRNA-1286 and FZD4 in hMSCs, the mRNA expression levels of ALP, RUNX2 and OCN, ALP activity and content, and cell mineralization ability were successively examined. RESULTS The expression of microRNA-1286 in the serum of patients with osteoporosis was significantly higher than that of the normal population. Meanwhile, microRNA-1286 expression decreased with the increase of osteogenic differentiation days of hAMSCs. After the overexpression of microRNA-1286, ALP, RUNX2, and OCN levels, ALP activity, RUNX2, and OCN protein levels, as well as mineralized nodule formation were significantly reduced. However, results were reversed when FZD4 was simultaneously up-regulated. Luciferase reporter gene assay results verified that microRNA-1286 could bind to FZD4. After the overexpression of microRNA-1286, the mRNA and protein expressions of FZD4 were found significantly down-regulated. However, results were reversed after knocking down microRNA-1286. Furthermore, the simultaneous overexpression of microRNA-1286 and FZD4 could counteract the inhibitory effect of over-expression of microRNA-1286 on osteogenic differentiation of hMSCs. CONCLUSIONS MicroRNA-1286 can regulate FZD4 expression and inhibit osteogenic differentiation of hMSCs, thereby promoting the development of osteoporosis.
Collapse
Affiliation(s)
- J-G Zhou
- Department of Joint Surgery, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, China.
| | | | | | | | | | | |
Collapse
|
18
|
Zheng M, Jiang T, Yang W, Zou Y, Wu H, Liu X, Zhu F, Qian R, Ling D, McDonald K, Shi J, Shi B. The siRNAsome: A Cation-Free and Versatile Nanostructure for siRNA and Drug Co-delivery. Angew Chem Int Ed Engl 2019; 58:4938-4942. [PMID: 30737876 PMCID: PMC6593984 DOI: 10.1002/anie.201814289] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/23/2019] [Indexed: 12/26/2022]
Abstract
Nanoparticles show great potential for drug delivery. However, suitable nanostructures capable of loading a range of drugs together with the co-delivery of siRNAs, which avoid the problem of cation-associated cytotoxicity, are lacking. Herein, we report an small interfering RNA (siRNA)-based vesicle (siRNAsome), which consists of a hydrophilic siRNA shell, a thermal- and intracellular-reduction-sensitive hydrophobic median layer, and an empty aqueous interior that meets this need. The siRNAsome can serve as a versatile nanostructure to load drug agents with divergent chemical properties, therapeutic proteins as well as co-delivering immobilized siRNAs without transfection agents. Importantly, the inherent thermal/reduction-responsiveness enables controlled drug loading and release. When siRNAsomes are loaded with the hydrophilic drug doxorubicin hydrochloride and anti-P-glycoprotein siRNA, synergistic therapeutic activity is achieved in multidrug resistant cancer cells and a tumor model.
Collapse
Affiliation(s)
- Meng Zheng
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
| | - Tong Jiang
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
| | - Wen Yang
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
| | - Yan Zou
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
- Department of Biomedical SciencesFaculty of Medicine & Health SciencesMacquarie UniversitySydneyNSWAustralia
| | - Haigang Wu
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
| | - Xiuhua Liu
- College of Chemistry and Chemical EngineeringHenan UniversityKaifeng475004China
| | - Fengping Zhu
- Department of NeurosurgeryHuashan HospitalFudan UniversityShanghai200040China
| | - Rongjun Qian
- Department of NeurosurgeryThe Henan Provincial People's HospitalZhengzhou450003China
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug ResearchCollege of Pharmaceutical SciencesZhejiang UniversityHangzhou310058China
| | - Kerrie McDonald
- Cure Brain Cancer Foundation Biomarkers and Translational Research GroupPrince of Wales Clinical SchoolLowy Cancer Research CentreUniversity of New South WalesSydneyNSWAustralia
| | - Jinjun Shi
- Center for Nanomedicine and Department of AnesthesiologyBrigham and Women's HospitalHarvard Medical SchoolBostonMAUSA
| | - Bingyang Shi
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan UniversityKaifengHenan475004China
- Department of Biomedical SciencesFaculty of Medicine & Health SciencesMacquarie UniversitySydneyNSWAustralia
- Center for Nanomedicine and Department of AnesthesiologyBrigham and Women's HospitalHarvard Medical SchoolBostonMAUSA
| |
Collapse
|
19
|
Zheng M, Jiang T, Yang W, Zou Y, Wu H, Liu X, Zhu F, Qian R, Ling D, McDonald K, Shi J, Shi B. The siRNAsome: A Cation‐Free and Versatile Nanostructure for siRNA and Drug Co‐delivery. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814289] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Meng Zheng
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
| | - Tong Jiang
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
| | - Wen Yang
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
| | - Yan Zou
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
- Department of Biomedical SciencesFaculty of Medicine & Health SciencesMacquarie University Sydney NSW Australia
| | - Haigang Wu
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
| | - Xiuhua Liu
- College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Fengping Zhu
- Department of NeurosurgeryHuashan HospitalFudan University Shanghai 200040 China
| | - Rongjun Qian
- Department of NeurosurgeryThe Henan Provincial People's Hospital Zhengzhou 450003 China
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug ResearchCollege of Pharmaceutical SciencesZhejiang University Hangzhou 310058 China
| | - Kerrie McDonald
- Cure Brain Cancer Foundation Biomarkers and Translational Research GroupPrince of Wales Clinical SchoolLowy Cancer Research CentreUniversity of New South Wales Sydney NSW Australia
| | - Jinjun Shi
- Center for Nanomedicine and Department of AnesthesiologyBrigham and Women's HospitalHarvard Medical School Boston MA USA
| | - Bingyang Shi
- Henan and Macquarie University Joint Centre for Biomedical InnovationSchool of Life SciencesHenan University Kaifeng Henan 475004 China
- Department of Biomedical SciencesFaculty of Medicine & Health SciencesMacquarie University Sydney NSW Australia
- Center for Nanomedicine and Department of AnesthesiologyBrigham and Women's HospitalHarvard Medical School Boston MA USA
| |
Collapse
|
20
|
Qian R, Li Z, Li M. Vertebral Arteriovenous Fistula: A Rare Complication Following Transpedicular Occipitocervical Fixation in a Patient with Atlantoaxial Dislocation. J Neurol Surg A Cent Eur Neurosurg 2018; 79:533-535. [PMID: 29966140 DOI: 10.1055/s-0038-1655771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Vertebral arteriovenous fistula (AVF), a complication of a vertebral artery injury (VAI), is a rare but serious complication of upper cervical spine fixation surgery. We report a case of a 59-year-old female patient who had a vertebral AVF following transpedicular occipitocervical fixation surgery. Endovascular embolization of the AVF was successfully performed using ethylene vinyl alcohol. From this case we learned that preoperative evaluation of the course of the vertebral artery is necessary, and vertebral artery embolism is an effective and safe method to treat vertebral AVF after proof of a patent second vertebral artery.
Collapse
Affiliation(s)
- Rongjun Qian
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Zhixiao Li
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ming Li
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| |
Collapse
|
21
|
Li S, Qian R, Wang S, Ye J, Zheng H. Identification of IgE and IgG1 specific antigens in Echinococcus granulosus cyst fluid. Braz J Med Biol Res 2017; 50:e6071. [PMID: 28678921 PMCID: PMC5496158 DOI: 10.1590/1414-431x20176071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Accepted: 05/08/2017] [Indexed: 11/22/2022] Open
Abstract
Cystic echinococcosis (CE) is an anthropozoonotic disease with worldwide distribution and is caused by the cestode Echinococcus granulosus. Anaphylactic shock induced by CE rupture is a serious complication especially in patients with hydatid infections, as the resulting leakage of fluid contains highly toxic endogenous antigen. We aimed to isolate and identify the antigens of specific IgE and IgG1 (sIgE and sIgG1) in E. granulosus cyst fluid (EgCF). Crude antigen for EgCF was prepared from E. granulosus-infected sheep liver. Antigens were separated and identified by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (1D SDS-PAGE), two-dimensional gel electrophoresis (2-DE), and immunoblotting. Results of 1D SDS-PAGE and immunoblotting showed that 40.5 kDa protein was the major antigen of sIgE, and 35.5 kDa protein was the major antigen of sIgG1 in EgCF. Results of 2-DE and immunoblotting showed that main antigens of sIgE in EgCF were four proteins with pI values ranging from 6.5 to 9.0 and a molecular weight of 40.5 kDa. Main antigens of sIgG1 in EgCF were five proteins with pI values ranging from 6.5 to 9.0 and a molecular weight of 35.5 kDa. The antigens identified for sIgE and sIgG1 can provide critical insights into cellular and molecular mechanisms underlying anaphylactic shock induced by CE.
Collapse
Affiliation(s)
- S Li
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.,Department of Anesthesiology, General Hospital, Xinjiang Command PLA, Urumqi, China
| | - R Qian
- Department of Anesthesiology, General Hospital, Xinjiang Command PLA, Urumqi, China
| | - S Wang
- Department of Immunology, Basic Medical College of Xinjiang Medical University, Urumqi, China
| | - J Ye
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - H Zheng
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| |
Collapse
|
22
|
Qian R, Li Z, Zhang J, Chen H, Shi X. [Individual surgical treatment of craniocervical junction malformation]. Zhonghua Yi Xue Za Zhi 2014; 94:2286-2289. [PMID: 25391873] [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: 06/04/2023]
Abstract
OBJECTIVE To explore the individual surgical treatment of various performance types of craniocervical junction malformation. METHODS From January 2011 to December 2013, 112 patients with craniocervical junction malformations were treated at our department, including Chiari malformation (n = 65) (syringomyelia, n = 58 and without syringomyelia, n = 7), basilar invagination disease (n = 35) (with cerebellar tonsillar herniation malformation or occipitocervical fusion) and complex craniocervical malformation (n = 22) (atlantoaxial dislocation with occipitocervical fusion or with chiari malformation or cervical insufficiency sub-section). All of them had the symptoms of upper cervical nerve damage. For those with Chiari malformation, we evaluated atlanto-occipital joint stability preoperatively. If atlanto-occipital joint was stable, we performed small occipital bone window decompression, partial removal of cerebellar tonsils, loosening of posterior fossa, upper cervical adhesions, artificial dura appropriate sutured dural repair expanding neck pillow. For patients with basilar invagination, if nerve compression performance was in the rear, posterior decompression was performed. For those with complex craniocervical malformation with atlantoaxial dislocation, neck traction under anesthesia or traction after anterior release, then pillow neck fixation and fusion were performed. RESULTS During follow-ups, the symptoms improved significantly (n = 98, 87.51%). There were no symptomatic change (n = 10, 8.93%), postoperative neurological deterioration (n = 3, 2.67%) and death (n = 1, 0.89%). CONCLUSION According to specific clinical manifestations of craniocervical junction malformation patients, the best treatment is to perform individualized surgeries after thorough preoperative evaluations.
Collapse
Affiliation(s)
- Rongjun Qian
- Department of Neurosurgery, People's Hospital of Henan Province, Zhengzhou 450003, China.
| | - Zhixiao Li
- Department of Neurosurgery, People's Hospital of Henan Province, Zhengzhou 450003, China
| | - Jiadong Zhang
- Department of Neurosurgery, People's Hospital of Henan Province, Zhengzhou 450003, China
| | - Hang Chen
- Department of Neurosurgery, People's Hospital of Henan Province, Zhengzhou 450003, China
| | - Xiwen Shi
- Department of Neurosurgery, People's Hospital of Henan Province, Zhengzhou 450003, China
| |
Collapse
|
23
|
Qian R, Guo M, Li S. Effect of High Molecular Mass Tail in the Mol Mass Distribution of Polypropylene on Injection Molding. INT POLYM PROC 2013. [DOI: 10.3139/217.870174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The effect of high molecular mass (MM) tail in the molecular mass distribution (MMD) of polypropylene (PP) on injection molding has been studied using injection molded tensile bars from a commercial PP resin and two samples of the above resin deprived of the high MM tail in different degrees by controlled degradation during extruder reaction with an added processing aid named Promax. The central portions of the tensile bars were studied by polarizing microscopy of microtomed sections parallel and perpendicular to the melt flow direction, and by density and birefringence profiles across the thickness of the bar. Mechanical properties and acoustic emission behavior in stretching of these injection molded tensile bars are also discussed. The experimental results show that by stripping off the high MM tail in the MMD the injection molded tensile bar has smaller degree of crystallization, less frozen orientation, improved uniformity across the thickness and the thickness of the skin part is greatly reduced. Better quality of the fabricated articles is to be expected by using Promax with PP for injection molding.
Collapse
Affiliation(s)
- R. Qian
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology, Beijing, China
| | - M. Guo
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology, Beijing, China
| | - S. Li
- Institute of Chemistery, Academia Sinica, Beijing Institute of Aeronautics, Beijing, Beijing Institute of Chemical Technology, Beijing, China
| |
Collapse
|
24
|
Abstract
Abstract
The material functions, viscosity η, the first normal stress function N1, dynamic shear moduli G′ & G″ from sinusoidal oscillatory measurements and the transient responses of stress build up and stress decay in step flow were investigated experimentally for solutions of poly-p-phenylene terephthalamide in H2SO4 at concentrations from 0.5 to 10 wt.-% covering the phase transition from isotropic to nematic LCP solutions at 8 % where all mentioned properties change abruptly. General analytical forms have been found for η and η* functions. LCP solutions show high value of N1 which builds up at shear strain larger than the yield value of 2. The structural origin for the observed rheological properties are discussed.
Collapse
Affiliation(s)
- Y. Xu
- Institute of Chemistry, Academia Sinica, Beijing, China
| | - R. Qian
- Institute of Chemistry, Academia Sinica, Beijing, China
| |
Collapse
|
25
|
Abstract
The expression of paired immunoglobulin-like receptor B (PirB) in normal and injured spinal cord of rats was investigated. The SD rat hemi-sectioned spinal cord injury (SCI) model was established. Before and 1, 3, 7, 10 days after SCI, the spinal cord tissues were harvested, and Western blot and immunohistochemistry were used to examine the expression and location of PirB. The results showed that the expression level of PirB in the normal spinal cord of SD rats was low. At the first day after SCI, the expression of PirB was obviously increased, and that in the injured spinal cord from the first day to the 10th day was significantly higher than in the normal spinal cord. The positive expression of PirB in neurons from different regions of gray matter of the injured spinal cord was seen. It was concluded that the expression of PirB in the normal spinal cord of rats was low. The expression of PirB in SCI was significantly increased till at least the 10th day.
Collapse
Affiliation(s)
- Yingchun Zhou
- Dpeartment of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | | | | | | | | |
Collapse
|
26
|
Zhao H, Zhang S, Jiang C, Qian R. Interactions between HMG proteins and the core sequence of DNaseI hypersensitive site 2 in the locus control region (LCR) of the human beta-like globin gene cluster. Sci China C Life Sci 2008; 43:631-6. [PMID: 18726358 DOI: 10.1007/bf02882284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2000] [Indexed: 10/22/2022]
Abstract
HMG proteins are abundant chromosomal non-histone proteins. It has been suggested that the HMG proteins may play an important role in the structure and function of chromatin. In the present study, the binding of HMG proteins (HMG1/2 and HMG14/17) to the core DNA sequence of DNaseI hypersensitive site 2 (HS2core DNA sequence, -10681-10970 bp) in the locus control region (LCR) of the human beta-like globin gene cluster has been examined by using both thein vitro nucleosome reconstitution and the gel mobility shift assays. Here we show that HMG1/2 can bind to the naked HS2core DNA sequence, however, HMG14/17 cannot. Using thein vitro nucleosome reconstitution we demonstrate that HMG14/17 can bind to the HS2core DNA sequence which is assembled into nucleosomes with the core histone octamer transferred from chicken erythrocytes. In contrast, HMG1/2 cannot bind to the nucleosomes reconstitutedin vitro with the HS2core DNA sequence. These results indicate that the binding patterns between HMG proteins and the HS2core DNA sequence which exists in different states (the naked DNA or thein vitro reconstituted nucleosomal DNA) are quite different. We speculate that HMG proteins might play a critical role in the regulation of the human beta-like globin gene's expression.
Collapse
Affiliation(s)
- H Zhao
- Shanghai Institute of Cell Biology, Chinese Academy of Sciences, 200031, Shanghai, China
| | | | | | | |
Collapse
|
27
|
Zhang C, Yu L, Qian R. Characterization of OmpK, GAPDH and their fusion OmpK-GAPDH derived from Vibrio harveyi outer membrane proteins: their immunoprotective ability against vibriosis in large yellow croaker (Pseudosciaena crocea). J Appl Microbiol 2008; 103:1587-99. [PMID: 17953570 DOI: 10.1111/j.1365-2672.2007.03386.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [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
AIM To investigate the immunoprotection of three recombinant proteins derived from the Vibrio harveyi outer membrane proteins (OMPs) OmpK, glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and their fusion OmpK-GAPDH as vaccine candidates from vibriosis of large yellow croaker (Pseudosciaena crocea). METHODS The ompK gene, of which the leader sequence was omitted, was fused with the gapdh gene. Three recombinant proteins r-OmpK, r-GAPDH and r-OmpK-GAPDH were expressed and purified. Western blots were carried out to detect the specificity of the antibodies raised against the recombinant proteins; Fish were immunized with recombinant proteins and challenged by native V. harveyi. The immunoresponse to the recombinant proteins were determined by ELISA and phagocytic activity assay. CONCLUSIONS The fusion protein r-OmpK-GAPDH can afford greater protection against the wild V. harveyi than r-OmpK or r-GAPDH alone or their mixture in humoral and cellular immunity, indicating that OmpK and GAPDH could produce a synergistic immunoprotection against vibriosis of large yellow croaker (Pseudosciaena crocea) when fused into OmpK-GAPDH with a linker. SIGNIFICANCE AND IMPACT OF THE STUDY It has been realized that a multi-component OMP antigen can induce a higher frequency of immune effectors than a single OMP. The results presented here bring forth a good suggestion for the subunit vaccine design based on the OMPs of gram-negative pathogens.
Collapse
Affiliation(s)
- C Zhang
- College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China
| | | | | |
Collapse
|
28
|
Dong Y, Gao W, Nan H, Yu H, Li F, Duan W, Wang Y, Sun B, Qian R, Tuomilehto J, Qiao Q. Prevalence of Type 2 diabetes in urban and rural Chinese populations in Qingdao, China. Diabet Med 2005; 22:1427-33. [PMID: 16176207 DOI: 10.1111/j.1464-5491.2005.01658.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AIMS To determine the prevalence of diabetes in the Chinese adult population in rural and urban areas of Qingdao city. METHODS A population-based cross-sectional study of diabetes was performed in 12 436 (5346 men) Chinese adults (20-74 years old) from 2001 to 2002. Fasting capillary whole blood glucose test (FCG) was performed in all participants and a 2-h 75-g oral glucose tolerance test in those with FCG > or = 6.1 mmol/l following initial screening. The 1999 World Health Organization diagnostic criteria for diabetes were used. RESULTS The age-standardized prevalence of diabetes was 6.1% (4.1% for undiagnosed and 2.1% for previously known diabetes) in adults aged 20-74 years. Diabetes prevalence increased with age up to the oldest age group (70-74); in subjects over 50 years of age, the prevalence reached 10%. Men tended to have a higher prevalence of known diabetes than women, whereas the prevalence of undiagnosed diabetes was lower in men than in women (4.6% vs. 3.3%, d.f. = 1, P = 0.001). Diabetes was more prevalent in the urban than in the rural population (6.9% vs. 5.6%, d.f. = 1, P < 0.001). However, the proportion of undiagnosed diabetes was higher in the rural than in the urban areas (70.5% vs. 58.0%, d.f. = 1, P < 0.001). CONCLUSIONS The prevalence of Type 2 diabetes in Qingdao city is moderately high, but much higher than reported in 1996. The large proportion of undiagnosed cases of diabetes indicates the lack of public awareness of diabetes and shortage of medical facilities. In view of the huge population in China, the results of this study emphasize the need to improve the early detection and prevention of diabetes in China to prevent the emerging diabetes epidemic.
Collapse
Affiliation(s)
- Y Dong
- Qingdao Endocrinology and Diabetes Institute, Qingdao, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Wang G, Qian R, Li Q, Niu T, Chen C, Xu X. The association between PPP1R3 gene polymorphisms and type 2 diabetes mellitus. Chin Med J (Engl) 2001; 114:1258-62. [PMID: 11793847] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
OBJECTIVE To detect the relationship between the polymorphism of the glycogen-targeting regulatory subunit of the skeletal muscle glycogen-associated protein phosphatase 1 (PPP1R3) gene and type 2 diabetes by case-control study. METHODS We genotyped the PPP1R3 gene Asp905Tyr polymorphism and a common 3'-untranslated region AT (AU)-rich element (ARE) polymorphism in 101 type 2 diabetic patients and 101 controls by oligonucleotide ligation assay (OLA) and polyacrylamide gel elecrophoresis, respectively. RESULTS Subjects with Tyr/Tyr genotypes whose body mass index (BMI) < 25 were used as the reference group. Those whose BMI > or = 25 with Asp905 had a 3.66-fold increase (95% CI: 1.48-9.06, P = 0.005) in type 2 diabetes risk. No association was found between 3'UTR ARE polymorphism and type 2 diabetes mellitus (OR = 1.15; 95% CI: 0.62-2.14, P = 0.65). CONCLUSION A joint effect between the Asp905 and BMI increases the risk of type 2 diabetes, and Asp905Tyr and ARE polymorphism of PPP1R3 gene are not the major diabetogenic gene variants in Chinese population.
Collapse
Affiliation(s)
- G Wang
- Department of Endocrinology, Third Affiliated Hospital of Beijing University, Beijing 100083, China.
| | | | | | | | | | | |
Collapse
|
30
|
Zhang Y, Chirmule N, Gao GP, Qian R, Croyle M, Joshi B, Tazelaar J, Wilson JM. Acute cytokine response to systemic adenoviral vectors in mice is mediated by dendritic cells and macrophages. Mol Ther 2001; 3:697-707. [PMID: 11356075 DOI: 10.1006/mthe.2001.0329] [Citation(s) in RCA: 308] [Impact Index Per Article: 13.4] [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: 12/27/2022] Open
Abstract
We investigated the cellular basis for secretion of inflammatory cytokines in mice following intravenous administration of adenoviral vectors (Ad). Serum inflammatory cytokines including interleukin-6 (IL-6), IL-12, and tumor necrosis factor-alpha (TNF-alpha) were detected as early as 6 h following intravenous injection of Ad-expressing Escherichia coli beta-galactosidase (Ad-lacZ). Ad-lacZ readily accumulated in the splenic marginal zone 1 h after intravenous infusion, where both dendritic cells (DCs) and macrophages were transduced and activated within 6 h. Flow cytometric analyses showed that the expression of Ia and CD86 antigens was markedly enhanced on splenic DCs indicating their activation in vivo by Ad-lacZ. Upon ex vivo culture, these early-activated splenic DCs spontaneously produced high levels of IL-6 and IL-12. By contrast, activated splenic macrophages spontaneously secreted only IL-6. Elimination of tissue macrophages and splenic DCs in vivo considerably reduced the early release of IL-12, IL-6, and TNF-alpha and significantly blocked the specific cellular immune response to Ad and the transgene product in vivo. Our findings indicate that preferential activation of DCs and macrophages may account for Ad-triggered acute inflammatory response in vivo in mice. Moreover, DCs and macrophages may play different roles in this process in terms of their abilities to produce distinct patterns of inflammatory cytokines.
Collapse
Affiliation(s)
- Y Zhang
- Institute for Human Gene Therapy, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Qian R, Chen C, Colley KJ. Location and mechanism of alpha 2,6-sialyltransferase dimer formation. Role of cysteine residues in enzyme dimerization, localization, activity, and processing. J Biol Chem 2001; 276:28641-9. [PMID: 11356854 DOI: 10.1074/jbc.m103664200] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [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: 11/06/2022] Open
Abstract
A significant proportion of the alpha2,6-sialyltransferase of protein Asn-linked glycosylation (ST6Gal I) forms disulfide-bonded dimers that exhibit decreased activity, but retain the ability to bind asialoglycoprotein substrates. Here, we have investigated the subcellular location and mechanism of ST6Gal I dimer formation, as well as the role of Cys residues in the enzyme's trafficking, localization, and catalytic activity. Pulse-chase analysis demonstrated that the ST6Gal I disulfide-bonded dimer forms in the endoplasmic reticulum. Mutagenesis experiments showed that Cys-24 in the transmembrane region is required for dimerization, while catalytic domain Cys residues are required for trafficking and catalytic activity. Replacement of Cys-181 and Cys-332 generated proteins that are largely retained in the endoplasmic reticulum and minimally active or inactive, respectively. Replacement of Cys-350 or Cys-361 inactivated the enzyme without compromising its localization or processing, suggesting that these amino acids are part of the enzyme's active site. Replacement of Cys-139 or Cys-403 generated proteins that are catalytically active and appear to be more stably localized in the Golgi, since they exhibited decreased cleavage and secretion. The Cys-139 mutant also exhibited increased dimer formation suggesting that ST6Gal I dimers may be critical in the oligomerization process involved in stable ST6Gal I Golgi localization.
Collapse
Affiliation(s)
- R Qian
- Department of Biochemistry and Molecular Biology, University of Illinois College of Medicine, Chicago, Illinois 60612, USA
| | | | | |
Collapse
|
32
|
Schnell MA, Zhang Y, Tazelaar J, Gao GP, Yu QC, Qian R, Chen SJ, Varnavski AN, LeClair C, Raper SE, Wilson JM. Activation of Innate Immunity in Nonhuman Primates Following Intraportal Administration of Adenoviral Vectors. Mol Ther 2001; 3:708-22. [PMID: 11356076 DOI: 10.1006/mthe.2001.0330] [Citation(s) in RCA: 278] [Impact Index Per Article: 12.1] [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] Open
Abstract
The innate immune response to intraportally infused adenoviral vector was evaluated in rhesus monkeys. A first-generation adenovirus-expressing lacZ (Ad-lacZ) was administered at a dose just below that which causes severe morbidity. The response to vector was evaluated for the initial 24 h following infusion. Clinical findings during this time were primarily limited to petechiae, consistent with the development of thrombocytopenia and biochemical evidence of disseminated intravascular coagulation. Serum transaminases were elevated and a lymphopenia developed. Tracking of fluorescent-labeled vector demonstrated distribution to macrophages and dendritic cells of the spleen and Kupffer cells of the liver. A systemic release of the cytokine IL-6 occurred soon after vector infusion. Analysis of splenic cells revealed acute activation of macrophages and dendritic cells followed by massive apoptosis. Bone marrow cultures demonstrated normal erythroid and primitive progenitors with a significant decrease in myeloid progenitors. Similar findings, except the abnormality in bone marrow cultures, were observed in monkeys who received an identical dose of Ad-lacZ in which vector genes were inactivated with psoralen and UV irradiation. These data suggest that inadvertent targeting of antigen-presenting cells following intraportal infusion of vector leads to a systemic cytokine syndrome which may be triggered by the viral capsid proteins.
Collapse
Affiliation(s)
- M A Schnell
- Institute for Human Gene Therapy, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Bowles KH, Peng T, Qian R, Naylor MD. Informatics application provides instant research to practice benefits. Proc AMIA Symp 2001:66-70. [PMID: 11825156 PMCID: PMC2243629] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
A web-based research information system was designed to enable our research team to efficiently measure health related quality of life among frail older adults in a variety of health care settings (home care, nursing homes, assisted living, PACE). The structure, process, and outcome data is collected using laptop computers and downloaded to a SQL database. Unique features of this project are the ability to transfer research to practice by instantly sharing individual and aggregate results with the clinicians caring for these elders and directly impacting the quality of their care. Clinicians can also dial in to the database to access standard queries or receive customized reports about the patients in their facilities. This paper will describe the development and implementation of the information system. The conference presentation will include a demonstration and examples of research to practice benefits.
Collapse
Affiliation(s)
- K H Bowles
- University of Pennsylvania School of Nursing, USA
| | | | | | | |
Collapse
|
34
|
Qian R, Zhang C, Fu H. [Study on therapeutic mechanism of anti-rheumatism action of herba siegesbeckiae]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2000; 20:192-5. [PMID: 11789283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To explore the mechanism of anti-rheumatism action of the active fraction of Herba Siegesbeckiae (AFHS). METHODS Adjuvant arthritis model of rat was made to observe the effect of AFHS on lymphocyte proliferation, interluekin-1 (IL-1) and IL-2 activity, pathologic section of ankle joint, and analgesic effect of AFHS in model rat. RESULTS AFHS could reduce the inflammatory pathologic response of ankle joint, it functions well as analgesics, the analgesic rate being 65%, AFHS could also improve T-lymphocyte proliferation, improve IL-2 activity and inhibit IL-1 activity, as compared with the control group, the difference was significant (P < 0.01). CONCLUSION Through regulating the immune function of organism, AFHS could improve the local pathologic response so as to antagonise against rheumatism, therefore, it is a good anti-rheumatism herbal medicine.
Collapse
Affiliation(s)
- R Qian
- Department of Integrated Traditional Chinese and Western Medicine, Bejing Medical University, Beijing (100083)
| | | | | |
Collapse
|
35
|
Abstract
Vectors based on human adenovirus (Ad) and adeno-associated virus (AAV) are being evaluated for human gene therapy. The response of the host to the vector, in terms of antigen-specific immunity, will play a substantial role in clinical outcome. We have surveyed cohorts of normal subjects and cystic fibrosis patients for pre-existing immunity to these viruses, caused by naturally acquired infections. A number of humoral and cellular assays to adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 2 (AAV2) were performed from serum and peripheral blood mononuclear cells. Virtually all subjects had Ig to Ad5 although only 55% of these antibodies neutralized virus (NAB). Approximately two of three patients demonstrated CD4+ T cells that proliferated to Ad antigens of which most were of the TH1 subset, based on cytokine secretion. A substantially different pattern of immune responses was observed to AAV2. Although virtually all patients had Ig to AAV2, most of these antibodies were not neutralizing (32% NAB) and only 5% of patients had peripheral blood lymphocytes that proliferated in response to AAV2 antigens. These studies demonstrate marked heterogeneity in pre-existing immunity to Ad5 and AAV2 in human populations. The impact of these findings on outcome following gene therapy will require further study.
Collapse
Affiliation(s)
- N Chirmule
- Institute for Human Gene Therapy and Departments of Molecular and Cellular Engineering, and Medicine, University of Pennsylvania, Philadelphia, PA 19104-6100, USA
| | | | | | | | | | | |
Collapse
|
36
|
Tracy MA, Ward KL, Firouzabadian L, Wang Y, Dong N, Qian R, Zhang Y. Factors affecting the degradation rate of poly(lactide-co-glycolide) microspheres in vivo and in vitro. Biomaterials 1999; 20:1057-62. [PMID: 10378806 DOI: 10.1016/s0142-9612(99)00002-2] [Citation(s) in RCA: 317] [Impact Index Per Article: 12.7] [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: 11/27/2022]
Abstract
The purpose of this work was to study the degradation of poly(lactide-co-glycolide) (PLG) microspheres in vivo and in vitro. Degradation rate constants were determined by measuring the polymer molecular weight as a function of time by gel-permeation chromatography. The effects of PLG chemistry and the effects of encapsulating the sparingly soluble salt zinc carbonate and the protein recombinant human growth hormone (rhGH) on the degradation rate were assessed. It was found that in vivo degradation was faster than in vitro degradation. In addition, different types of PLGs were found to degrade at different rates depending on the chemistry of the polymer end group and, to a lesser extent, the molecular weight. Finally, zinc carbonate was found to retard the degradation of some PLGs. These degradation studies have proved valuable in the design of sustained release microsphere products.
Collapse
Affiliation(s)
- M A Tracy
- Alkermes Inc., Cambridge, MA 02139, USA.
| | | | | | | | | | | | | |
Collapse
|
37
|
Ma J, Simonovic M, Qian R, Colley KJ. Sialyltransferase isoforms are phosphorylated in the cis-medial Golgi on serine and threonine residues in their luminal sequences. J Biol Chem 1999; 274:8046-52. [PMID: 10075704 DOI: 10.1074/jbc.274.12.8046] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [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: 01/14/2023] Open
Abstract
ST6Gal-I (alpha2,6-sialyltransferase) is expressed as two isoforms, STTyr and STCys, which exhibit differences in catalytic activity, trafficking through the secretory pathway, and proteolytic processing and secretion. We have found that the ST6Gal-I isoforms are phosphorylated on luminal Ser and Thr residues. Immunoprecipitation of 35S- and 32P-labeled proteins expressed in COS-1 cells suggests that the STTyr isoform is phosphorylated to a greater extent than the STCys isoform. Analysis of domain deletion mutants revealed that STTyr is phosphorylated on stem and catalytic domain amino acids, whereas STCys is phosphorylated on catalytic domain amino acids. An endoplasmic reticulum retained/retrieved chimeric Iip33-ST protein demonstrates drastically lower phosphorylation than does the wild type STTyr isoform. This suggests that the bulk of the ST6Gal-I phosphorylation is occurring in the Golgi. Treatment of cells with the ionophore monensin does not significantly block phosphorylation of the STTyr isoform, suggesting that phosphorylation is occurring in the cis-medial Golgi prior to the monensin block. This study demonstrates the presence of kinase activities in the cis-medial Golgi and the substantial phosphorylation of the luminal sequences of a glycosyltransferase.
Collapse
Affiliation(s)
- J Ma
- Department of Biochemistry and Molecular Biology, University of Illinois at Chicago College of Medicine, Chicago, Illinois 60612, USA
| | | | | | | |
Collapse
|
38
|
Chirmule N, Moscioni AD, Qian Y, Qian R, Chen Y, Wilson JM. Fas-Fas ligand interactions play a major role in effector functions of cytotoxic T lymphocytes after adenovirus vector-mediated gene transfer. Hum Gene Ther 1999; 10:259-69. [PMID: 10022550 DOI: 10.1089/10430349950019048] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [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: 11/13/2022] Open
Abstract
Adenovirus vectors transduce liver hepatocytes with extreme efficiency; however, transgene expression is eliminated within 2 weeks. Extinction of transgene expression has been attributed to infiltrating cytotoxic T lymphocytes (CTLs) in the liver in a process that resembles a number of human diseases, including viral and autoimmune hepatitis. In this study we investigated the role of Fas-Fas ligand interactions in killing of vector-transduced hepatocytes in vitro and in vivo. Intrahepatic lymphocytes (IHLs) isolated from livers of mice administered adenovirus vector demonstrated cytolytic activity against vector-infected primary hepatocytes. The in vitro CTL activity of the IHLs involving both CD4+ and CD8+ T cells was MHC class I restricted and could be blocked by soluble Fas-IgG. Adoptive transfer of IHLs from immune-competent mice immunized with Ad-lacZ into Ragl-deficient mice previously infused with Ad-lacZ resulted in rapid elimination of beta-galactosidase-transduced hepatocytes. Transfer of these cells into Fas-deficient mice (B6-lpr) failed to eliminate lacZ expression; likewise IHLs from immunized FasL-deficient mice (B6-gld) failed to eliminate lacZ expression in Rag1-deficient mice. Finally, in vivo administration of soluble Fas-IgG abrogated the ability of Ad-lacZ-primed IHLs to eliminate transgene expression. These studies establish an essential role for Fas-Fas ligand interactions in the mechanism of elimination of adenoviral vector-mediated transgene expression in the liver.
Collapse
Affiliation(s)
- N Chirmule
- Department of Molecular and Cellular Engineering, University of Pennsylvania, Wistar Institute, Philadelphia 19104-4268, USA
| | | | | | | | | | | |
Collapse
|
39
|
Emerich DF, Tracy MA, Ward KL, Figueiredo M, Qian R, Henschel C, Bartus RT. Biocompatibility of poly (DL-lactide-co-glycolide) microspheres implanted into the brain. Cell Transplant 1999; 8:47-58. [PMID: 10338275 DOI: 10.1177/096368979900800114] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.7] [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: 11/15/2022] Open
Abstract
The delivery of therapeutic molecules to the brain has been limited in part due to the presence of the blood-brain barrier. One potential solution is the implantation of biodegradable polymers with sustained release of drugs. Poly (DL-lactide-co-glycolide) (PLG) is a bioerodible polymer with a long and successful history of use as a suture material. More recently, PLG has been investigated for localized and sustained delivery of molecules into both peripheral sites and the brain. Despite its well-defined safety profile for parenteral applications, little information exists concerning the safety of PLG when implanted into the brain. To further characterize the biocompatibility of PLG in the brain, we examined the gliotic response following implants of PLG into the brains of rats. As a control, each animal received an injection of the suspension medium into the contralateral hemisphere. Following implantation, PLG was well tolerated. GFAP-positive astrocytes were observed throughout the cerebral cortex and striatum on both the implanted and control sides, with the reaction being greatest within the heavily myelinated fiber tracts of the corpus callosum. Quantitative analyses revealed that this reaction occurred within 1 h postsurgery, reached its peak at 1 week following surgery, and then decreased markedly by 1 month postsurgery. A minimal gliotic reaction was still present 1 year postsurgery but was localized to the needle tract. No differences in GFAP reactivity were seen between the polymer-implanted and control sides at any time point. Histological analysis determined that the majority of the PLG disappeared between 1 and 4 weeks. A set of parallel studies in which PLG samples were retrieved from the brain at various time points corroborated these findings and determined that the majority of PLG degraded within 2 weeks following implantation. Together, these results demonstrate that PLG is well tolerated following implantation into the CNS and that the astrocytic response to PLG is largely a consequence of the mechanical trauma that occurs during surgery. The biocompatibility of PLG implanted into the CNS provides further support for its use in a wide range of new therapeutic applications for sustained and localized drug delivery to the brain.
Collapse
Affiliation(s)
- D F Emerich
- Department of Pharmacology, Alkermes, Inc., Cambridge, MA 02139, USA
| | | | | | | | | | | | | |
Collapse
|
40
|
Liu L, Li M, Qian R. [T-lymphocyte immune status of children with recurrent respiratory tract infection and progress in its treatment with traditional Chinese and western medicine]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1998; 18:573-5. [PMID: 11475738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
|
41
|
Zhu G, Allende ML, Jaskiewicz E, Qian R, Darling DS, Worth CA, Colley KJ, Young WW. Two soluble glycosyltransferases glycosylate less efficiently in vivo than their membrane bound counterparts. Glycobiology 1998; 8:831-40. [PMID: 9639544 DOI: 10.1093/glycob/8.8.831] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [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: 11/13/2022] Open
Abstract
Many Golgi glycosyltransferases are type II membrane proteins which are cleaved to produce soluble forms that are released from cells. Cho and Cummings recently reported that a soluble form of alpha1, 3-galactosyltransferase was comparable to its membrane bound counterpart in its ability to galactosylate newly synthesized glycoproteins (Cho,S.K. and Cummings,R.D. (1997) J. Biol. Chem., 272, 13622-13628). To test the generality of their findings, we compared the activities of the full length and soluble forms of two such glycosyltransferases, ss1,4 N-Acetylgalactosaminyltransferase (GM2/GD2/ GA2 synthase; GalNAcT) and beta galactoside alpha2,6 sialyltransferase (alpha2,6-ST; ST6Gal I), for production of their glycoconjugate products in vivo . Unlike the full length form of GalNAcT which produced ganglioside GM2 in transfected cells, soluble GalNAcT did not produce detectable GM2 in vivo even though it possessed in vitro GalNAcT activity comparable to that of full length GalNAcT. When compared with cells expressing full length alpha2,6-ST, cells expressing a soluble form of alpha2,6-ST contained 3-fold higher alpha2,6-ST mRNA levels and secreted 7-fold greater alpha2,6-ST activity as measured in vitro , but in striking contrast contained 2- to 4-fold less of the alpha2,6-linked sialic acid moiety in cellular glycoproteins in vivo . In summary these results suggest that unlike alpha1,3-galactosyltransferase the soluble forms of these two glycosyltransferases are less efficient at glycosylation of membrane proteins and lipids in vivo than their membrane bound counterparts.
Collapse
Affiliation(s)
- G Zhu
- Departments of Biological and Biophysical Sciences and Biochemistry and Molecular Biology, Schools of Dentistry and Medicine and James G. Brown Cancer Center, University of Louisville, Louisville, KY 40292, USA
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Wang Y, Qian R, Ma X. Changes of activity of liver glycogen synthase in experimental diabetes mellitus rats. Chin Med J (Engl) 1998; 111:32-4. [PMID: 10322649] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
OBJECTIVE To study the activity of liver glycogen synthase in analogous model of NIDDM rats. METHODS Male Wistar rats were injected with low dose of streptozotocin (STZ) (30 mg/kg body weight) via tail vena and those animals with glucose tolerance impaired and level of insulin equal to or higher than that of the controls at 18th week were taken as the analogous rat model of NIDDM. The activity of liver glycogen synthase (GS) was assayed at the end of experiment. RESULTS Type I-enzyme: 0.18 +/- 0.06 mumol/min.g versus 0.24 +/- 0.09 mumol/min.g, P < 0.05, and total-enzyme: 1.52 +/- 0.43 mumol/min. g versus 1.84 +/- 0.42 mumol/min.g, P < 0.05. CONCLUSION The GS activity of diabetic rats was significantly lower than that of control.
Collapse
Affiliation(s)
- Y Wang
- Department of Endocrinology of the First Clinical School of Beijing Medical University, China
| | | | | |
Collapse
|
43
|
Qian R. [Proper use of oral hypoglycemic agents]. Zhonghua Nei Ke Za Zhi 1997; 36:149-50. [PMID: 10374305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
|
44
|
Ma J, Qian R, Rausa FM, Colley KJ. Two naturally occurring alpha2,6-sialyltransferase forms with a single amino acid change in the catalytic domain differ in their catalytic activity and proteolytic processing. J Biol Chem 1997; 272:672-9. [PMID: 8995311 DOI: 10.1074/jbc.272.1.672] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.3] [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: 02/03/2023] Open
Abstract
The alpha2,6-sialyltransferase (ST) is a Golgi glycosyltransferase that adds sialic acid residues to glycoprotein N-linked oligosaccharides. Here we show that two forms of alpha2,6-sialyltransferase are expressed by the liver and are encoded by two different RNAs that differ by a single nucleotide. The ST tyr possesses a Tyr at amino acid 123, whereas the ST cys possesses a Cys at this position. The ST tyr is more catalytically active than the ST cys; however, both are functional when introduced into tissue culture cells. The proteolytic processing and turnover of the ST tyr and ST cys proteins differ dramatically. The ST cys is retained intact in COS-1 cells, whereas the ST tyr is rapidly cleaved and secreted. Analysis of the N-linked oligosaccharides of these proteins demonstrates that both proteins enter the late Golgi. However, differences in ST tyr and ST cys proteolytic processing may be related to differences in their localization, because ST tyr but not ST cys is expressed at low levels on the cell surface. The possibility that the ST tyr is cleaved in a post-Golgi compartment is supported by the observation that a 20 degrees C temperature block, which stops protein transport in the trans Golgi network, blocks both cleavage and secretion of the ST tyr.
Collapse
Affiliation(s)
- J Ma
- University of Illinois College of Medicine, Chicago 60612, USA
| | | | | | | |
Collapse
|
45
|
Abstract
Based upon the analysis of enzyme-catalyzed reactions occurring in living tissue, a model of thermal injury process is presented in which the fraction of denatured enzyme protein was taken as the indicator of thermal damage degrees. The results from this model describe the dependence of thermal damage on exposure time and temperature elevation.
Collapse
Affiliation(s)
- Y Xu
- Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | | |
Collapse
|
46
|
Xiang K, Qian R. [Mitochondrial gene and diabetes]. Zhonghua Nei Ke Za Zhi 1995; 34:638-40. [PMID: 8697933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
47
|
Li Y, Qian R, Huang X, Zhu G. Treatment of idiopathic thrombocytopenic purpura based on TCM syndrome differentiation. J TRADIT CHIN MED 1995; 15:83-6. [PMID: 7650967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Y Li
- Bethune Medical University, Changchun, Jilin Province
| | | | | | | |
Collapse
|
48
|
|
49
|
Qian R, Shi WX, Shen ZM, Sun C. A mannose-specific lectin from Vicia villosa seeds. Biochim Biophys Acta 1994; 1201:61-8. [PMID: 7918583] [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: 01/27/2023]
Abstract
A lectin specific to mannose has been purified from Vicia villosa seed by (NH4)2SO4 fractionation, GalNAc-Sepharose and Man-Sepharose affinity chromatography. It was defined as VVLM, which showed a single band on an acidic-PAGE stained with Coomassie brilliant blue. The molecular weight of VVLM was 50 kDa as determined by gel filtration on Biogel P-100 column. The VVLM molecule consists of 2 distinct subunits with apparent molecular weight of 30 kDa and 22 kDa determined by SDS-PAGE. VVLM has at least four isolectins with similar haemagglutinating activity. Its extinction coefficient is calculated as A1(1cm) = 16.4 at 280 nm. Sugars could not be detected by phenol-sulfuric acid method. The circular dichroism analysis at far UV indicated that VVLM was a beta-sheet-rich protein, and gave no alpha-helix, 69% beta-sheet, 14% beta-turn by Provencher and Glockner method. The lectin was inhibited by alpha-methyl-D-mannose at 12.5 mM and glucose or GlcNAc at 50 mM. The carbohydrate binding specificity of VVLM was investigated by using affinity chromatography on a VVLM-Sepharose column. Among various Asn-linked oligosaccharides, core structure Man alpha 1-->3(Man alpha 1-->6)Man beta 1-->4GlcNAc beta 1-->4GlcNAcOT were found to have high affinity for VVLM-Sepharose. The antisera of VVLM did not produce precipitin line with VVLG in agar double diffusion plate indicating no serological relationship between VVLM and VVLG. However VVLM showed similar immunodeterminants of some other lectins of mannose specificity such as Con A, PSL, LCA and VFL.
Collapse
Affiliation(s)
- R Qian
- Shanghai Institute of Biochemistry, Academia Sinica, China
| | | | | | | |
Collapse
|
50
|
Qian R, Zhou YC, Zhuang QQ. Platelet activation by platelet aggregation factor from Eisenia foelide. Zhongguo Yao Li Xue Bao 1994; 15:432-5. [PMID: 7717070] [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: 01/26/2023]
Abstract
A platelet activating factor from earthworm, Eisenia foelide (EPAF, 25.9 mumol.L-1), induced human platelet aggregation and 5-HT (maximal release of 89% at EPAF 74.1 mumol.L-1) was detected during this process. Neither creatine phosphate/creatine phosphate kinase (CP/CPK) nor aspirin completely inhibited the EPAF-induced platelet aggregation. In the presence of fibrinogen, EPAF (55.6 mumol.L-1) induced the aggregation of human platelet which had been thrombin-treated and degranulated. Results indicated that EPAF was a potent platelet agonist and the EPAF-induced platelet aggregation was ADP- and TXA2-independent.
Collapse
Affiliation(s)
- R Qian
- Shanghai Institute of Biochemistry, Chinese Academy of Sciences
| | | | | |
Collapse
|