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Li K, Chen D, He M, Yu J, Mi H. Sunitinib for adenocarcinoma of the rete testis: a case report. Front Oncol 2024; 14:1358133. [PMID: 38651150 PMCID: PMC11033338 DOI: 10.3389/fonc.2024.1358133] [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: 12/19/2023] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
Background Adenocarcinoma of the rete testis (AORT) is an extremely rare and aggressive tumor with a poor prognosis. Its etiology and pathological characteristics have not been extensively studied, making accurate diagnosis and appropriate management challenging. AORT, an invasive testicular tumor with a mortality rate of 46%, treatment typically involves radical orchiectomy, retroperitoneal pelvic lymph node dissection (RPLND), adjuvant chemotherapy, and/or ongoing monitoring, but the response to conventional radiation and chemotherapy is limited. At present, no effective targeted therapy for AORT has been found. Case description In this case report, we present the clinical scenario of a 50-year-old male patient initially diagnosed with a right testicular hydrocele, who subsequently underwent eversion of the parietal tunica vaginalis. Postoperative pathological analysis revealed metastatic clear cell renal cell carcinoma (ccRCC). PET/CT demonstrated findings suggestive of left renal upper pole carcinoma with involvement of the right scrotum, para-aortic region, bilateral iliac vessels, bilateral inguinal region, and multiple metastases. Sunitinib, a tyrosine kinase inhibitor, is commonly employed in the treatment of ccRCC. The patient underwent treatment with sunitinib for a duration of 20 months, resulting in the inactivation of multiple metastases. Following this, a radical orchiectomy was performed, and the postoperative pathology confirmed the presence of AORT. This article provides a comprehensive account of the patient's medical history, diagnostic process, treatment modalities, and subsequent follow-up observations. Conclusions This case report highlights the successful use of targeted therapy with sunitinib in a patient with AORT. The patient showed a positive response to targeted therapy. This study not only provides a novel foundation for the treatment of AORT, but also offers valuable insights for future treatment strategies in managing this particular form of testicular cancer.
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Affiliation(s)
| | | | | | | | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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2
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Chen J, Zhu H, Chen S, Mi H. Apolipoprotein E is a Potential Biomarker for Predicting Cancer Prognosis and is Correlated with Immune Infiltration. Onco Targets Ther 2024; 17:199-214. [PMID: 38523659 PMCID: PMC10960509 DOI: 10.2147/ott.s447319] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/12/2024] [Indexed: 03/26/2024] Open
Abstract
Background Apolipoprotein E (APOE) is a polymorphic protein that plays a role in lipoprotein transformation and metabolism. It is involved in numerous physiological processes within the body and is closely associated with tumor growth and metastasis. However, the role of APOE in pan-cancer has yet to be evaluated. Therefore, studying the association between APOE and various cancer types is crucial for providing a basis for individualized treatment strategies and clinical prognosis assessment. Methods We investigated the diagnostic and prognostic significance of APOE across 33 tumor types, as well as its correlation with tumor mutation burden (TMB) and microsatellite instability (MSI). Additionally, we employed the ESTIMATE and CIBERSORT algorithms to analyze the potential impact of APOE on the immune system. Furthermore, gene set enrichment analysis (GSEA) was conducted to explore its underlying physiological function. Results Based on observations from a pan-cancer dataset, APOE expression was significantly different between cancer and normal tissues, and was simultaneously associated with survival outcomes in terms of cancer type, clinical annotation, TMB, MSI, and TICs abundance. In addition, the results also showed that expression of APOE may respond to a variety of cancer chemotherapy. Conclusion The findings from this study strongly indicate a close association between APOE and tumor development. Moreover, APOE shows promise as a potential biomarker for predicting prognosis and response to immunotherapy in patients with pan-cancer.
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Affiliation(s)
- Jinji Chen
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Herong Zhu
- Department of Urology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Foshan, People’s Republic of China
| | - Shaohua Chen
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Hua Mi
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China
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Huang J, Chen J, Wang C, Lai L, Mi H, Chen S. Deciphering the molecular classification of pediatric sepsis: integrating WGCNA and machine learning-based classification with immune signatures for the development of an advanced diagnostic model. Front Genet 2024; 15:1294381. [PMID: 38348451 PMCID: PMC10859440 DOI: 10.3389/fgene.2024.1294381] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/16/2024] [Indexed: 02/15/2024] Open
Abstract
Introduction: Pediatric sepsis (PS) is a life-threatening infection associated with high mortality rates, necessitating a deeper understanding of its underlying pathological mechanisms. Recently discovered programmed cell death induced by copper has been implicated in various medical conditions, but its potential involvement in PS remains largely unexplored. Methods: We first analyzed the expression patterns of cuproptosis-related genes (CRGs) and assessed the immune landscape of PS using the GSE66099 dataset. Subsequently, PS samples were isolated from the same dataset, and consensus clustering was performed based on differentially expressed CRGs. We applied weighted gene co-expression network analysis to identify hub genes associated with PS and cuproptosis. Results: We observed aberrant expression of 27 CRGs and a specific immune landscape in PS samples. Our findings revealed that patients in the GSE66099 dataset could be categorized into two cuproptosis clusters, each characterized by unique immune landscapes and varying functional classifications or enriched pathways. Among the machine learning approaches, Extreme Gradient Boosting demonstrated optimal performance as a diagnostic model for PS. Discussion: Our study provides valuable insights into the molecular mechanisms underlying PS, highlighting the involvement of cuproptosis-related genes and immune cell infiltration.
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Affiliation(s)
- Junming Huang
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jinji Chen
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Chengbang Wang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Lichuan Lai
- Department of Laboratory, The People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Shaohua Chen
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
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Huang J, Li B, Wei H, Li C, Liu C, Mi H, Chen S. Integrative analysis of gene expression profiles of substantia nigra identifies potential diagnosis biomarkers in Parkinson's disease. Sci Rep 2024; 14:2167. [PMID: 38272954 PMCID: PMC10810830 DOI: 10.1038/s41598-024-52276-0] [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: 07/29/2023] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease whose etiology is attributed to development of Lewy bodies and degeneration of dopaminergic neurons in the substantia nigra (SN). Currently, there are no definitive diagnostic indicators for PD. In this study, we aimed to identify potential diagnostic biomarkers for PD and analyzed the impact of immune cell infiltrations on disease pathogenesis. The PD expression profile data for human SN tissue, GSE7621, GSE20141, GSE20159, GSE20163 and GSE20164 were downloaded from the Gene Expression Omnibus (GEO) database for use in the training model. After normalization and merging, we identified differentially expressed genes (DEGs) using the Robust rank aggregation (RRA) analysis. Simultaneously, DEGs after batch correction were identified. Gene interactions were determined through venn Diagram analysis. Functional analyses and protein-protein interaction (PPI) networks were used to the identify hub genes, which were visualized through Cytoscape. A Lasso Cox regression model was employed to identify the potential diagnostic genes. The GSE20292 dataset was used for validation. The proportion of infiltrating immune cells in the samples were determined via the CIBERSORT method. Sixty-two DEGs were screened in this study. They were found to be enriched in nerve conduction, dopamine (DA) metabolism, and DA biosynthesis Gene Ontology (GO) terms. The PPI network and Lasso Cox regression analysis revealed seven potential diagnostic genes, namely SLC18A2, TAC1, PCDH8, KIAA0319, PDE6H, AXIN1, and AGTR1, were subsequently validated in peripheral blood samples obtained from healthy control (HC) and PD patients, as well as in the GSE20292 dataset. The results revealed the exceptional sensitivity and specificity of these genes in PD diagnosis and monitoring. Moreover, PD patients exhibited a higher number of plasma cells, compared to HC individuals. The SLC18A2, TAC1, PCDH8, KIAA0319, PDE6H, AXIN1, and AGTR1 are potential diagnostic biomarkers for PD. Our findings also reveal the essential roles of immune cell infiltration in both disease onset and trajectory.
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Affiliation(s)
- Junming Huang
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, 530000, Guangxi, China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530000, Guangxi, China
| | - Bowen Li
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530000, Guangxi, China
| | - Huangwei Wei
- Department of Neurology, The People Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Chengxin Li
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530000, Guangxi, China
| | - Chao Liu
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530000, Guangxi, China.
| | - Shaohua Chen
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, 530000, Guangxi, China.
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Chen D, Liang S, Chen J, Li K, Mi H. Machine learning-based overall and cancer-specific survival prediction of M0 penile squamous cell carcinoma:A population-based retrospective study. Heliyon 2024; 10:e23442. [PMID: 38163093 PMCID: PMC10755306 DOI: 10.1016/j.heliyon.2023.e23442] [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: 05/04/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024] Open
Abstract
Background Penile cancer is a rare tumor and few studies have focused on the prognosis of M0 penile squamous cell carcinoma (PSCC). This retrospective study aimed to identify independent prognostic factors and construct predictive models for the overall survival (OS) and cancer-specific survival (CSS) of patients with M0 PSCC. Methods Data was extracted from the Surveillance, Epidemiology, and End Results database for patients diagnosed with malignant penile cancer. Eligible patients with M0 PSCC were selected according to predetermined inclusion and exclusion criteria. These patients were then divided into a training set, a validation set, and a test set. Univariate and multivariate COX regression analyses were initially performed to identify independent prognostic factors for OS and CSS in M0 PSCC patients. Subsequently, traditional and machine learning prognostic models, including random survival forest (RSF), COX, gradient boosting, and component-wise gradient boosting modelling, were constructed using the scikit-survival framework. The performance of each model was assessed by calculating time-dependent area under curve (AUC), C-index, and integrated Brier score (IBS), ultimately identifying the model with the highest performance. Finally, the Shapley additive explanation (SHAP) value, feature importance, and cumulative rates analyses were used to further estimate the selected model. Results A total of 2, 446 patients were included in our study. Cox regression analyses demonstrated that age, N stage, and tumor size were predictors of OS, while the N stage, tumor size, surgery, and residential area were predictors of CSS. The RSF and COX models had a higher time-independent AUC and C-index, and lower IBS value than other models in OS and CSS prediction. Feature importance analysis revealed the N stage as a common significant feature for predicting M0 PSCC patients' survival. The SHAP and cumulative rate analyses demonstrated that the selected models can effectively evaluate the prognosis of M0 PSCC patients. Conclusion In M0 PSCC patients, age, N stage, and tumor size were predictors of OS. In addition, the N stage, tumor size, surgery, and residential area were predictors of CSS. The machine learning-based RSF and COX models effectively predicted the prognosis of M0 PSCC patients.
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Affiliation(s)
| | | | | | - Kezhen Li
- Department of urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530001, China
| | - Hua Mi
- Department of urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530001, China
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Liang S, Dang B, Chen S, Mi H. Prognostic value and immunological role of cathepsin S gene in pan‑cancer. Oncol Lett 2024; 27:41. [PMID: 38108072 PMCID: PMC10722551 DOI: 10.3892/ol.2023.14175] [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: 07/11/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023] Open
Abstract
The cathepsin S (CTSS) gene encodes a lysine cysteine protease and serves an important role in the development of autoimmune diseases, inflammation and nervous system diseases. Furthermore, CTSS is implicated in tumor invasion and metastasis by the induction of tumor angiogenesis and the degradation of the tumor extracellular matrix. Nevertheless, the precise impact of CTSS on predicting pan-cancer prognosis and its influence on the tumor microenvironment and immune infiltration in human cancers remains unknown. This present study employed a comprehensive array of bioinformatic methods to evaluate the expression of CTSS and its associations with prognosis, clinicopathological characteristics, tumor microenvironment, tumor immune infiltration, tumor mutational burden and microsatellite instability across numerous cancer types. The current study demonstrated abnormal expression and distinct genomic alteration profiles of CTSS in many of the cancers tested. Furthermore, CTSS expression exhibited close associations with the prognosis of numerous cancers. High CTSS expression was significantly associated with better overall survival and disease-specific survival in bladder urothelial carcinoma (BLCA) and skin cutaneous melanoma (SKCM) but worse outcomes in brain lower grade glioma (LGG) and uveal melanoma (UVM). Moreover, CTSS demonstrated significant correlations with tumor mutational burden and microsatellite instability in 8 and 12 cancer types respectively, as well as different responses in immunotherapy sub-cohorts, especially in melanoma and bladder cancers. CTSS expression showed a positive correlation with stromal and immune cell scores in the four aforementioned cancers. Moreover, CTSS expression was correlated with the number of infiltrating CD8+ T cells, CD4+ T cells and macrophages. Conversely, CTSS was negatively associated with resting Mast cells, resting NK cells and resting memory CD4+ T cell infiltration in BLCA, SKCM and kidney renal clear cell carcinoma (KIRC). Furthermore, CTSS expression was correlated with immune-related gene expression, notably PDCD1, LAG3, PDCD1 and TIGIT in BLCA, KIRC, SKCM, LGG and UVM. Functional enrichment analysis suggested that CTSS could drive a dynamic adjustment of biological functions and pathways in BLCA, SKCM, LGG and UVM, including immune response regulating signaling pathways, regulation of lymphocyte activation and T cell receptor singling pathways. The current study suggested that CTSS could be an essential biomarker for prognosis and immune infiltration features in multiple cancers.
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Affiliation(s)
- Shengsheng Liang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Bowen Dang
- Department of Urology, The First People's Hospital of Yulin, Yulin, Guangxi Zhuang Autonomous Region 537000, P.R. China
| | - Shaohua Chen
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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He M, Yu J, Chen S, Mi H. A Systematic Immune and Prognostic Analysis of CD48 Interaction with Tumor Microenvironment in Pan-Cancer. Int J Gen Med 2023; 16:5255-5269. [PMID: 38021043 PMCID: PMC10655609 DOI: 10.2147/ijgm.s431696] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Background The cluster of differentiation 48 (CD48) is a member of the signaling lymphocyte activation molecule family, constitutively expressed on most hematopoietic cells. CD48 was reported to affect immune regulation in certain tumors, thereby influencing tumor development and prognosis, but its impact on the prognosis and immune infiltration in pan-cancer remains unclear. Material and Methods We systematically analyzed the raw data from The Cancer Genome Atlas (TCGA), Tumor Immune Estimation Resource (TIMER), and Tumor Immune Dysfunction and Exclusion (TIDE) databases. Initially, we investigated the differences in CD48 expression between pan-cancer and adjacent normal tissues. Then, the correlation analysis of CD48 with tumor mutational burden (TMB), microsatellite instability (MSI), tumor microenvironment (TME), and immune-related genes was evaluated. Moreover, bioinformatics tools: ESTIMATE and gene set enrichment analysis (GSEA) were used for tumor immunology analysis in pan-cancer. We performed validation studies including quantitative real-time PCR (qPCR) and Western blotting. Results Differential analysis revealed that CD48 was significantly altered in pan-cancer as compared with normal tissues. Meanwhile, the survival analysis demonstrated that CD48 strongly correlated with overall survival (OS), disease-free interval (DFI), progression-free interval (PFI), and disease-specific survival (DSS), indicating its crucial role in the tumor patients' prognosis. CD48 expression was also associated with TMB and MSI levels in 17 and 14 types of pan-cancers, respectively. Moreover, CD48 was linked to immune infiltrating cells and stromal components in the TME. Conclusion Concludingly, patients with pan-cancer may benefit from evaluating CD48 as a prognostic and immunotherapy response biomarker.
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Affiliation(s)
- Mingdong He
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Jun Yu
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Shaohua Chen
- Department of Urology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
| | - Hua Mi
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
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Jiang K, Lee JH, Fung TS, Wu J, Liu C, Mi H, Rajapakse RPVJ, Balasuriya UBR, Peng YK, Go YY. Next-generation diagnostic test for dengue virus detection using an ultrafast plasmonic colorimetric RT-PCR strategy. Anal Chim Acta 2023; 1274:341565. [PMID: 37455070 DOI: 10.1016/j.aca.2023.341565] [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: 04/13/2023] [Revised: 06/19/2023] [Accepted: 06/25/2023] [Indexed: 07/18/2023]
Abstract
The current global COVID-19 pandemic once again highlighted the urgent need for a simple, cost-effective, and sensitive diagnostic platform that can be rapidly developed for distribution and easy access in resource-limited areas. Here, we present a simple and low-cost plasmonic photothermal (PPT)-reverse transcription-colorimetric polymerase chain reaction (RTcPCR) for molecular diagnosis of dengue virus (DENV) infection. The assay can be completed within 54 min with an estimated detection limit of 1.6 copies/μL of viral nucleic acid. The analytical sensitivity and specificity of PPT-RTcPCR were comparable to that of the reference RT-qPCR assay. Moreover, the clinical performance of PPT-RTcPCR was evaluated and validated using 158 plasma samples collected from patients suspected of dengue infection. The results showed a diagnostic agreement of 97.5% compared to the reference RT-qPCR and demonstrated a clinical sensitivity and specificity of 97.0% and 100%, respectively. The simplicity and reliability of our PPT-RTcPCR strategy suggest it can provide a foundation for developing a field-deployable diagnostic assay for dengue and other infectious diseases.
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Affiliation(s)
- Kunlun Jiang
- Department of Chemistry, College of Science, City University of Hong Kong, Kowloon, 999077, Hong Kong, China
| | - Jung-Hoon Lee
- Department of Chemistry, Soonchunhyang University, Asan, 31538, South Korea.
| | - To Sing Fung
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, 999077, Hong Kong, China
| | - Jingrui Wu
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Congnuan Liu
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, 999077, Hong Kong, China
| | - Hua Mi
- Department of Chemistry, College of Science, City University of Hong Kong, Kowloon, 999077, Hong Kong, China
| | - R P V Jayanthe Rajapakse
- Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - Udeni B R Balasuriya
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA; Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Yung-Kang Peng
- Department of Chemistry, College of Science, City University of Hong Kong, Kowloon, 999077, Hong Kong, China.
| | - Yun Young Go
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, 999077, Hong Kong, China.
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Qiu Y, Yuan B, Mi H, Lee JH, Chou SW, Peng YK. Correction to "An Atomic Insight into the Confusion on the Activity of Fe 3O 4 Nanoparticles as Peroxidase Mimetics and Their Comparison with Horseradish Peroxidase". J Phys Chem Lett 2023:5013. [PMID: 37222637 DOI: 10.1021/acs.jpclett.3c01255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Yu Z, Lv Y, Su C, Lu W, Zhang R, Li J, Guo B, Yan H, Liu D, Yang Z, Mi H, Mo L, Guo Y, Feng W, Xu H, Peng W, Cheng J, Nan A, Mo Z. Integrative Single-Cell Analysis Reveals Transcriptional and Epigenetic Regulatory Features of Clear Cell Renal Cell Carcinoma. Cancer Res 2023; 83:700-719. [PMID: 36607615 PMCID: PMC9978887 DOI: 10.1158/0008-5472.can-22-2224] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/19/2022] [Accepted: 12/29/2022] [Indexed: 01/07/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) frequently features a high level of tumor heterogeneity. Elucidating the chromatin landscape of ccRCC at the single-cell level could provide a deeper understanding of the functional states and regulatory dynamics underlying the disease. Here, we performed single-cell RNA sequencing (scRNA-seq) and single-cell assay for transposase-accessible chromatin using sequencing (scATAC-seq) on 19 ccRCC samples, and whole-exome sequencing was used to understand the heterogeneity between individuals. Single-cell transcriptome and chromatin accessibility maps of ccRCC were constructed to reveal the regulatory characteristics of different tumor cell subtypes in ccRCC. Two long noncoding RNAs (RP11-661C8.2 and CTB-164N12.1) were identified that promoted the invasion and migration of ccRCC, which was validated with in vitro experiments. Taken together, this study comprehensively characterized the gene expression and DNA regulation landscape of ccRCC, which could provide new insights into the biology and treatment of ccRCC. SIGNIFICANCE A comprehensive analysis of gene expression and DNA regulation in ccRCC using scATAC-seq and scRNA-seq reveals the DNA regulatory programs of ccRCC at the single-cell level.
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Affiliation(s)
- Zhenyuan Yu
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Yufang Lv
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Cheng Su
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Wenhao Lu
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - RuiRui Zhang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Jiaping Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Bingqian Guo
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Haibiao Yan
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Deyun Liu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Zhanbin Yang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Linjian Mo
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Yi Guo
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Wenyu Feng
- Department of Trauma Orthopedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Haotian Xu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Wenyi Peng
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Jiwen Cheng
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
- Corresponding Authors: Zengnan Mo, Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China. Phone: 86-138-7889-3666; E-mail: ; Jiwen Cheng, ; Aruo Nan,
| | - Aruo Nan
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Corresponding Authors: Zengnan Mo, Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China. Phone: 86-138-7889-3666; E-mail: ; Jiwen Cheng, ; Aruo Nan,
| | - Zengnan Mo
- Center for Genomic and Personalized Medicine, Guangxi key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, P.R. China
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
- Corresponding Authors: Zengnan Mo, Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China. Phone: 86-138-7889-3666; E-mail: ; Jiwen Cheng, ; Aruo Nan,
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11
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Qiu Y, Yuan B, Mi H, Lee JH, Chou SW, Peng YK. An Atomic Insight into the Confusion on the Activity of Fe 3O 4 Nanoparticles as Peroxidase Mimetics and Their Comparison with Horseradish Peroxidase. J Phys Chem Lett 2022; 13:8872-8878. [PMID: 36125422 DOI: 10.1021/acs.jpclett.2c02331] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Although Fe3O4 nanoparticles were early reported to outperform horseradish peroxidase (HRP), recent studies suggested that this material bears a very poor activity instead. Here, we resolve this disagreement by reviewing the definition of descriptors used and provide an atomic view into the origin of Fe3O4 nanoparticles as peroxidase mimetics. The redox between H2O2 and Fe(II) sites on the Fe3O4 surface was identified as the key step to producing OH radicals for the oxidation of colorimetric substrates. This mechanism involving free radicals is distinct from that of HRP oxidizing substrates with a radical retained on its Fe-porphyrin ring. Surprisingly, the distribution and chemical state of Fe species were found to be very different on single- and polycrystalline Fe3O4 nanoparticles with the latter bearing not only a higher Fe(II)/Fe(III) ratio but also a more reactive Fe(II) species at surface grain boundaries. This accounts for the unexpected gap in the catalytic constant (kcat) observed for this material in the literature.
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Affiliation(s)
- Yuwei Qiu
- Department of Chemistry, City University of Hong Kong, 0000 Hong Kong, Hong Kong SAR, China
| | - Bo Yuan
- Department of Chemistry, City University of Hong Kong, 0000 Hong Kong, Hong Kong SAR, China
| | - Hua Mi
- Department of Chemistry, City University of Hong Kong, 0000 Hong Kong, Hong Kong SAR, China
| | - Jung-Hoon Lee
- Department of Chemistry, Soonchunhyang University, Asan 31538, Korea
| | - Shang-Wei Chou
- Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
| | - Yung-Kang Peng
- Department of Chemistry, City University of Hong Kong, 0000 Hong Kong, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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12
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Niu D, Chen Y, Mi H, Mo Z, Pang G. The epiphany derived from T-cell–inflamed profiles: Pan-cancer characterization of CD8A as a biomarker spanning clinical relevance, cancer prognosis, immunosuppressive environment, and treatment responses. Front Genet 2022; 13:974416. [PMID: 36035168 PMCID: PMC9403071 DOI: 10.3389/fgene.2022.974416] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
CD8A encodes the CD8 alpha chain of αβT cells, which has been proposed as a quantifiable indicator for the assessment of CD8+ cytotoxic T lymphocytes (CTLs) recruitment or activity and a robust biomarker for anti-PD-1/PD-L1 therapy responses. Nonetheless, the lack of research into the role of CD8A in tumor microenvironment predisposes to limitations in its clinical utilization. In the presented study, multiple computational tools were used to investigate the roles of CD8A in the pan-cancer study, revealing its essential associations with tumor immune infiltration, immunosuppressive environment formation, cancer progression, and therapy responses. Based on the pan-cancer cohorts of the Cancer Genome Atlas (TCGA) database, our results demonstrated the distinctive CD8A expression patterns in cancer tissues and its close associations with the prognosis and disease stage of cancer. We then found that CD8A was correlated with six major immune cell types, and immunosuppressive cells in multiple cancer types. Besides, epigenetic modifications of CD8A were related to CTL levels and T cell dysfunctional states, thereby affecting survival outcomes of specific cancer types. After that, we explored the co-occurrence patterns of CD8A mutation, thus identifying RMND5A, RNF103-CHMP3, CHMP3, CD8B, MRPL35, MAT2A, RGPD1, RGPD2, REEP1, and ANAPC1P1 genes, which co-occurred mutations with CD8A, and are concomitantly implicated in the regulation of cancer-related pathways. Finally, we tested CD8A as a therapeutic biomarker for multiple antitumor agents’ or compounds’ responsiveness on various cancer cell lines and cancer cohorts. Our findings denoted the underlying mechanics of CD8A in reflecting the T-cell-inflamed profiles, which has potential as a biomarker in cancer diagnosis, prognosis, and therapeutic responses.
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Affiliation(s)
- Decao Niu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Center for Genomic and Personalized Medicine, Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China
- Department of Urology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yifeng Chen
- Department of Urology, The First People’s Hospital of Yulin, Yulin, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- *Correspondence: Hua Mi, ; Zengnan Mo, ; Guijian Pang,
| | - Zengnan Mo
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Center for Genomic and Personalized Medicine, Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China
- *Correspondence: Hua Mi, ; Zengnan Mo, ; Guijian Pang,
| | - Guijian Pang
- Department of Urology, The First People’s Hospital of Yulin, Yulin, China
- *Correspondence: Hua Mi, ; Zengnan Mo, ; Guijian Pang,
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13
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Tong H, Guo C, Liang L, Mi H, Li M, Yin Y, Shang L, Mi S, Yu X. Implication of a de novo Variant in ciliary rootlet coiled- coil (CROCC) with assimilation of atlas (AOA). GenApp 2022. [DOI: 10.31383/ga.vol6iss1pp11-26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Assimilation of atlas is a rare skeletal malformation causing nerve compression with high risk of fatal. However, the genetic etiology of assimilation of atlas AOA is currently lacking. In this paper, the whole-exome sequencing (WES) analysis was employed to study a Chinese family having a sporadic proband son of assimilation of atlas AOA but other healthy family members. We identified a novel variant in ciliary rootlet coiled-coil gene (NM_014675.5 (CROCC): c.4702C>T (r.4702c>u, p.(Arg1568Cys)). The variant had different genotypes between the proband and healthy family members but with high conservations of “damage” to protein structure based on MutationTaster and SIFT prediction. CROCC gene can be obtained in both healthy (n=220) and non-mutated assimilation of atlas AOA patient samples (n=68) but absented in five sporadic patients with the novel variant. Furthermore, abnormal of cilia was observed after editing the target sequence on CROCC using CRISPR-Cas9. These results suggested that assimilation of atlas AOA might be caused by the mutation of CROCC: c.4702C>T (r.4702c>u, p.(Arg1568Cys)). With strong amino acid conservation and interaction regulation, the variant mutation could cause the signal disorder of skeletal development which may lead to the defective bone formation and finally cause the development of assimilation of atlas AOA.
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14
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Wang C, Chen S, Li S, Mi H. A Prognostic Model for Predicting Tumor Mutation Burden and Tumor-Infiltrating Immune Cells in Bladder Urothelial Carcinoma. Front Genet 2022; 13:708003. [PMID: 35251120 PMCID: PMC8896886 DOI: 10.3389/fgene.2022.708003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 01/21/2022] [Indexed: 12/20/2022] Open
Abstract
Tremendous progress has been made in development of immunotherapeutic approaches for treatment of bladder urothelial carcinoma (BLCA). However, efficacy and safety of these approaches remain unsatisfactory, necessitating further investigations for identification of indicators for predicting prognosis and efficacy. In this study, we downloaded transcriptomic and clinical data of BLCA patients from The Cancer Genome Atlas (TCGA) database, and identified differentially expressed genes (DEGs) between tumor and normal tissues. We incorporated these DEGs in an intersection analysis with immune-related genes (IRGs) obtained from the Immunology Database and Analysis Portal (ImmPort) database, and identified immune-related DEGs. These genes were subjected to Cox and least absolute shrinkage and selection operator (LASSO) regression analyses, then a prognostic model containing AHNAK, OAS1, NGF, PPY and SCG2 genes was constructed, for prediction of prognosis of BLCA and efficacy of immunotherapy. Finally, we explored the relationship between the prognostic model and tumor mutational burden (TMB), abundance of tumor-infiltrating immune cells (TICs) and immunotherapeutic targets, and found that patients with higher risk score (RS) had poorer prognosis and significantly lower levels of TMB. Patients in the low-RS group exhibited higher numbers of lymphoid cells, whereas those in the high-RS group exhibited higher proportions of myeloid cells. However, patients with high-RS tended to respond better to immunotherapy relative to those in the low-RS group. The constructed prognostic model provides a new tool for predicting prognosis of BLCA patients and efficacy of immunotherapy, offering a feasible option for management of the disease.
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Affiliation(s)
- Chengbang Wang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, China
- Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Shaohua Chen
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, China
- Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Songheng Li
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- *Correspondence: Hua Mi,
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15
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Yu Z, Lu W, Su C, Lv Y, Ye Y, Guo B, Liu D, Yan H, Mi H, Li T, Zhang Q, Cheng J, Mo Z. Single-Cell RNA-seq Identification of the Cellular Molecular Characteristics of Sporadic Bilateral Clear Cell Renal Cell Carcinoma. Front Oncol 2021; 11:659251. [PMID: 34168986 PMCID: PMC8217644 DOI: 10.3389/fonc.2021.659251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 01/27/2021] [Accepted: 04/29/2021] [Indexed: 12/20/2022] Open
Abstract
Bilateral renal cell carcinoma (RCC) is a rare disease that can be classified as either familial or sporadic. Studying the cellular molecular characteristics of sporadic bilateral RCC is important to provide guidance for clinical treatment. Cellular molecular characteristics can be expressed at the RNA level, especially at the single-cell degree. Single-cell RNA sequencing (scRNA-seq) was performed on bilateral clear cell RCC (ccRCC). A total of 3,575 and 3,568 high-quality single-cell transcriptome data were captured from the left and right tumour tissues, respectively. Gene characteristics were identified by comparing left and right tumours at the scRNA level. The complex cellular environment of bilateral ccRCC was presented by using scRNA-seq. Single-cell transcriptomic analysis revealed high similarity in gene expression among most of the cell types of bilateral RCCs but significant differences in gene expression among different site tumour cells. Additionally, the potential biological function of different tumour cell types was determined by gene ontology (GO) analysis. The transcriptome characteristics of tumour tissues in different locations at the single-cell transcriptome level were revealed through the scRNA-seq of bilateral sporadic ccRCC. This work provides new insights into the diagnosis and treatment of bilateral RCC.
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Affiliation(s)
- Zhenyuan Yu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Wenhao Lu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Cheng Su
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Yufang Lv
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Yu Ye
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China.,Scientific Research Department, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Bingqian Guo
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Deyun Liu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haibiao Yan
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Tianyu Li
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qingyun Zhang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China.,Department of Urology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, China
| | - Jiwen Cheng
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Zengnan Mo
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
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16
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Zhu H, Sha Y, Wu W, Chen R, Yang Y, Qiu J, Mi H, Peng C, Ding C, Wang Z, Fan L, Xu W, Li J. ZANUBRUTINIB, LENALIDOMIDE PLUS R‐CHOP (ZR
2
‐CHOP) AS THE TREATMENT FOR DIFFUSED LARGE B‐CELL LYMPHOMA (DLBCL). Hematol Oncol 2021. [DOI: 10.1002/hon.49_2881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H. Zhu
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - Y. Sha
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - W. Wu
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - R. Chen
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - Y. Yang
- Pukou division of Jiangsu Province Hospital Pukou CLL Center Nanjing China
| | - J. Qiu
- Pukou division of Jiangsu Province Hospital Pukou CLL Center Nanjing China
| | - H. Mi
- Pukou division of Jiangsu Province Hospital Pukou CLL Center Nanjing China
| | - C. Peng
- Pukou division of Jiangsu Province Hospital Pukou CLL Center Nanjing China
| | - C. Ding
- The First Affiliated Hospital of Nanjing Medical University Department of Nuclear Medicine Nanjing China
| | - Z. Wang
- The First Affiliated Hospital of Nanjing Medical University Department of Pathology Nanjing China
| | - L. Fan
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - W. Xu
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
| | - J. Li
- The First Affiliated Hospital of Nanjing Medical University Department of Hematology Nanjing China
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17
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Wu J, Jiang K, Mi H, Qiu Y, Son J, Park HJ, Nam JM, Lee JH. A rapid and sensitive fluorescence biosensor based on plasmonic PCR. Nanoscale 2021; 13:7348-7354. [PMID: 33889912 DOI: 10.1039/d1nr00102g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Plasmonic PCR utilizing metallic nanoparticles has shown great advantages compared to the commercial thermocycler equipment in terms of cost, size and processing time. However, due to the strong fluorescence quenching, plasmonic nanoparticle-based PCR requires additional post-processing steps such as centrifugation and gel electrophoresis. This process increases the overall diagnostic time, offsetting the benefits of fast thermocycling. Here, we report a rapid and sensitive plasmonic photothermal PCR (PPT-PCR) assay method based on in situ end-point fluorescence detection. By using plasmonic magnetic bi-functional nanoparticles, PPT-PCR involving 30 thermocycles and fluorescence detection following magnetic separation has successfully shown that DNA targets can be detected within 5.5 minutes. The limit of detection (3.3 copies per μL) is comparable with that of the conventional real-time quantitative PCR; however, the assay time is about 5.5 times shorter for the PPT-PCR. The strategy of combining the photothermal effect and magnetic separation into a single particle will open new horizons in the development of fast and sensitive PCR-based biosensors for point-of care testing.
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Affiliation(s)
- Jingrui Wu
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
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18
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Chen S, Su X, Mi H, Dai X, Li S, Chen S, Zhang S. Comprehensive analysis of glutathione peroxidase-1 (GPX1) expression and prognostic value in three different types of renal cell carcinoma. Transl Androl Urol 2021; 9:2737-2750. [PMID: 33457246 PMCID: PMC7807338 DOI: 10.21037/tau-20-1398] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Indexed: 01/11/2023] Open
Abstract
Background Glutathione peroxidase-1 (GPX1) is generally expressed in tissues with high oxygen tension such as the kidneys and lungs, and its main function is to degrade reactive oxygen species (ROS) and protect cells from oxidative stress. Studies have shown that GPX1 is upregulated in many tumor tissues and is closely related to tumor progression and metastasis. This study aimed to explore the possibility of GPX1 as a biomarker for kidney chromophobe cell carcinoma (KICH), kidney renal papillary cell carcinoma (KIRP), and kidney renal clear cell carcinoma (KIRC). Methods The Oncomine and GEPIA databases were used to analyze the GPX1 expression differences between tumor and normal tissues, and the UALCAN, GEPIA and DriverDBv3 databases were used to perform the survival analyses. The GeneMANIA interactive tool was then used to find the GPX1-related protein-protein interaction (PPI). Following this, the LinkedOmics database was used for the enrichment analysis of GPX1, and the Timer database was used to estimate the abundance of immune infiltration. Finally, quantitative polymerase chain reaction (qPCR) was performed on patient specimens collected in the clinic to confirm the database findings. Results In our study, we found that the expression of GPX1 in three types of renal cell carcinoma (RCC) were upregulated, and the high expression of GXP1 was related to the poor prognosis of patients with KICH and KIRC. On the contrary, KIRP patients with a high expression of GPX1 had a better prognosis. In addition, GPX1 was related to the abundance of immune cell infiltration. The results of the qPCR analysis confirmed that the expression of GPX1 in RCC was increased compared with the control group (P<0.05). Conclusions Our results indicate that the expression of GPX1 is related to the prognosis of three types of RCC. As such, GPX1 expression could be a reliable diagnostic and prognostic biomarker for RCC and, more importantly, may provide a new direction for therapeutic strategies.
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Affiliation(s)
- Shaohua Chen
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaotao Su
- Guangxi Medical University, Nanning, China
| | - Hua Mi
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaodi Dai
- Guangxi Medical University, Nanning, China
| | - Songheng Li
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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19
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Mi H, Wang S, Yin H, Wang L, Mei L, Zhu X, Zhang N, Jiang R. (Gold triangular nanoplate core)@(silver shell) nanostructures as highly sensitive and selective plasmonic nanoprobes for hydrogen sulfide detection. Nanoscale 2020; 12:20250-20257. [PMID: 33026023 DOI: 10.1039/d0nr05728b] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogen sulfide plays a significant role in living beings, while its abnormal concentration is related to many diseases. Besides, H2S gas is harmful to human beings and the environment. The detection of H2S has therefore attracted much attention in the past several decades. Herein, highly sensitive and selective H2S plasmonic nanoprobes (gold triangular nanoplate core)@(silver shell) (AuTNP@Ag) are reported. By virtue of the high refractive index sensitivity of Au TNPs to the surrounding medium and facile sulfurization of silver by sulfur ions, AuTNP@Ag exhibits great sensitivity to both sulfur ions and H2S gas. The shifts of the plasmon peak are as large as 16 nm for the ventilation of 1 ppm hydrogen sulfide. AuTNP@Ag nanoprobes also exhibit very good sensing linearity at low concentrations of sulfur ions. Moreover, excellent sensing selectivity for sulfur ions is obtained. A type of test gel, which can produce a naked-eye observable color change when exposed to 1-100 ppm hydrogen sulfide gas, is developed using AuTNP@Ag nanoprobes. Owing to the high sensitivity, linearity, and selectivity of the Au TNP@Ag nanoprobes for hydrogen sulfide sensing, this work paves the way for the plasmonic detection of hydrogen sulfide in both biological and environmental applications.
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Affiliation(s)
- Hua Mi
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Shengyan Wang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Hang Yin
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Le Wang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Lin Mei
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Xingzhong Zhu
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Nan Zhang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Ruibin Jiang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China. and The State Key Laboratory of Optoelectronic Materials and Technologies (Sun Yat-sen University), China
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20
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Xi XJ, Chen SH, Mi H. Aldh2 gene reduces oxidative stress in the bladder by regulating the NF-κB pathway in a mouse model of ketamine-induced cystitis. Exp Ther Med 2020; 20:111. [PMID: 33005240 PMCID: PMC7523278 DOI: 10.3892/etm.2020.9239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 12/23/2019] [Accepted: 07/14/2020] [Indexed: 12/26/2022] Open
Abstract
Aldehyde dehydrogenase 2 (aldh2) serves an important role in the development of organ injury. Therefore, the present study investigated the effects of aldh2 on the oxidative stress response in a mouse model of ketamine-induced cystitis (KIC). A total of 60 8-week-old male Institute of Cancer Research wild-type (WT) mice and 45 aldh2 knock-out (KO) mice were randomized to receive low-dose ketamine (30 mg/kg), high-dose ketamine (60 mg/kg) or normal saline (controls). At 4, 8 and 12 weeks post-injection, bladder tissues were harvested and used to investigate the protective mechanisms of aldh2 on bladder function. The results demonstrated that aldh2 KO mice exhibited significant weight loss following chronic ketamine injection compared with that in WT mice. Furthermore, ketamine treatment increased the urination rate (P<0.05), pathological score (P<0.05), levels of the oxidative stress product malondialdehyde (P<0.05) in addition to reducing the expression of the anti-oxidative stress enzyme superoxide dismutase (P<0.05) and glutathione-SH (P<0.05). Oxidative stress in aldh2 KO mice was also found to significantly enhance the expression of proteins associated with the NF-κB signaling pathway, which promoted the expression of inducible nitric oxide synthase (P<0.05) and cyclooxygenase-2 (P<0.05) further. Finally, aldh2 KO mice demonstrated higher severity of fibrosis in the submucosal and muscular layers of the bladder. In conclusion, the present study suggests that aldh2 serves a protective role in preventing inflammation and fibrosis in KIC.
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Affiliation(s)
- Xiao Jian Xi
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Shao Hua Chen
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Hua Mi
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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Xi XJ, Zeng JJ, Lu Y, Chen SH, Jiang ZW, He PJ, Mi H. Extracellular vesicles enhance oxidative stress through P38/NF-kB pathway in ketamine-induced ulcerative cystitis. J Cell Mol Med 2020; 24:7609-7624. [PMID: 32441055 PMCID: PMC7339200 DOI: 10.1111/jcmm.15397] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/18/2020] [Accepted: 04/27/2020] [Indexed: 12/22/2022] Open
Abstract
Long‐term abuse of ketamine causes ketamine‐induced cystitis. The functional alterations of bladder epithelial cells in microenvironment during cystitis remain poorly understood. Here, we explored extracellular vesicles (EV) alteration in ketamine‐induced toxicity. To simulate the high‐concentration ketamine environment in vivo, we established an in vitro model of high ketamine using human uroepithelial cells (SV‐HUC‐1). Cell viability and proliferation were assessed to evaluate the effects of various concentrations (0, 0.25, 0.5, 1, 2, 4 and 8 mmol/L) of ketamine on SV‐HUC‐1 cells. The cell supernatant cultured at a concentration (0, 1, 2, 4 mmol/L) of ketamine was selected for EV extraction and identified. Subsequently, we assessed different groups (ketamine, ketamine plus EV blocker, EV, EV plus extracellular vesicles blocker) of oxidative stress and expression of inflammation. Last, luciferase reporter assay was performed to study the transcriptional regulation of EV on the NF‐kB and P38 pathway. The results of our study suggested that treatment with 0, 1, 2 or 4 mmol/L ketamine altered the morphology and secretion capacity of extracellular vesicles. As the concentration of ketamine increased, the average particle size of EV decreased, but the crest size, particle concentration and EV protein increased. Moreover, after the addition of EV blocker, EV secreted at different concentrations were blocked outside the cell membrane, and the degree of oxidative stress decreased. Our study provided evidence that ketamine alters the secretion of EV by directly stimulating cells in inflammation microenvironment and EV play significant roles in intercellular signal communication and the formation of KIC.EV
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Affiliation(s)
- Xiao Jian Xi
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jin Jiang Zeng
- Department of Urology, Liuzhou Municipal Liutie Central Hospital, Liuzhou, China
| | - Yong Lu
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shao Hua Chen
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhi Wen Jiang
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Peng Jie He
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hua Mi
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Zhao XL, Gao JS, Li LL, Li S, Wang H, Xiao JF, Zhang J, Mi H, Yang YJ, Zhao FY, Guan X, Cao YX, Wu YY, Lu CX, Yang T, Zhang X. [Prenatal gene diagnosis of 200 fetuses at high risk of osteogenesis imperfect]. Zhonghua Yi Xue Za Zhi 2019; 99:3328-3334. [PMID: 31715670 DOI: 10.3760/cma.j.issn.0376-2491.2019.42.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The authors aim to provide genetic counselling and prenatal gene diagnosis to the families with osteogenesis imperfecta(OI), based on the identification of pathogenetic mutations in large cohort genetic testing. Methods: DNA was extracted from the peripheral blood of parents of the fetuses, and from the villi tissue, amniotic fluid or cord blood of the fetuses using a standard sodium dodecyl sulfate-proteinase K-phenol/chloroform extraction method. PCR combined with Sanger DNA sequencing was performed to validate the pathogenic mutations of 200 fetuses at risk of OI and their parents from 158 families. Allelic analysis of microsatellite markers was applied to exclude the false positive caused by maternal DNA contamination, when both the fetus and the mother harbored the same pathogenic genotype. Results: A total of 83 affected fetuses (83/200, 41.5%) and 12 (12/200, 6.0%) recessive carriers were identified among the 200 fetuses. The 83 affected fetuses included 78 heterozygotes (45 of COL1A1, 32 of COL1A2, one of IFITM5), and 5 compound heterozygotes or homozygotes of recessive OI (two of FKBP10, one of SEC24D, one of WNT1 and one of CRTAP); The 12 recessive carriers included 7 of WNT1, 4 of SERPINF1 and one of SERPINH1. Maternal DNA contamination was excluded from the genomic DNA samples of OI fetuses when their mother with the same affected genotypes. Conclusion: In this study, the authors used an optimized gene diagnosis system of OI to perform prenatal genetic diagnosis to 200 fetuses at high risk of OI, and provided precisely genetic counselling to the OI families.
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Affiliation(s)
- X L Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J S Gao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing 100730, China
| | - L L Li
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - S Li
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - H Wang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J F Xiao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J Zhang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - H Mi
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y J Yang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - F Y Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - X Guan
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y X Cao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y Y Wu
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - C X Lu
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - T Yang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - X Zhang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
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Fu W, Wu X, Yang Z, Mi H. The effect of miR-124-3p on cell proliferation and apoptosis in bladder cancer by targeting EDNRB. Arch Med Sci 2019; 15:1154-1162. [PMID: 31572460 PMCID: PMC6764309 DOI: 10.5114/aoms.2018.78743] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/16/2017] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Endothelin receptor type B (EDNRB) is a potential target gene of miR-124-3p, but the association between miR-124-3p and EDNRB has not yet been reported. The aim of this study was to investigate the role of miR-124-3p in bladder cancer (BC) and to determine whether miR-124-3p regulates cell proliferation by targeting EDNRB. MATERIAL AND METHODS Bladder cancer tissues and cell lines were obtained in order to analyze the miR-124-3p and EDNRB expression through quantitative RT-PCR (qRT-PCR) and western blotting analysis. The dual-luciferase reporter assay was employed to confirm the relationship between miR-124-3p and EDNRB. The manipulation of miR-124-3p and EDNRB expression was achieved through cell transfection. Cell proliferation and apoptosis were evaluated by MTS assay, colony forming assay and flow cytometry. A nude mouse tumorigenicity assay was used to detect the effects of miR-124-3p in vivo. RESULTS There was an inverse correlation between the expression of miR-124-3p and EDNRB; miR-124-3p was down-regulated and EDNRB was up-regulated in BC tissues and cell lines. MiR-124-3p was observed to target EDNRB and suppress its expression. Other studies have suggested that the transfection of miR-124-3p mimics and EDNRB siRNA can suppress BC cell proliferation and induce cell apoptosis. CONCLUSIONS miR-124-3p regulates the proliferation and apoptosis of BC cells by suppressing EDNRB expression.
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Affiliation(s)
- Weijin Fu
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaoyun Wu
- Guangxi Medical College, Nanning, Guangxi, China
| | - Zhanbin Yang
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Hua Mi
- Department of Urology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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Abstract
Urethral diverticulum is a condition where the urethra or the periurethral glands push into the connective tissue layers that surround it. Patients of urethral diverticulum present with nonspecific symptoms such as incontinence, urinary frequency and urgency, and pain during sexual intercourse and urination. The incidence of this condition is low. We report a case of giant anterior urethra stones combined with a diverticulum with no lower urinary tract symptoms. We believe that this case is extremely rare, and the process of diagnosis and treatment is of great significance in clinical practice.
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Affiliation(s)
- S Chen
- Department of Urology, First Affiliated Hospital of Guangxi Medical University , Nanning, Guangxi , China
| | - X Su
- First School of Clinical Medicine, Guangxi Medical University , Nanning, Guangxi , China
| | - M Jiang
- First School of Clinical Medicine, Guangxi Medical University , Nanning, Guangxi , China
| | - H Mi
- Department of Urology, First Affiliated Hospital of Guangxi Medical University , Nanning, Guangxi , China
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Mi H, Wang L, Zhang Y, Zhao G, Jiang R. Control of the emission from electric and magnetic dipoles by gold nanocup antennas. Opt Express 2019; 27:14221-14230. [PMID: 31163874 DOI: 10.1364/oe.27.014221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
The control of the emission from electric and magnetic dipoles is highly desired for the development of optic chips. Although the emission of electric dipole has been successfully controlled by plasmonic nanoantenna, the control of magnetic dipole emission is relatively difficult. Here, we systematically study the effect of electric and magnetic modes of Au nanocups on the emission of electric and magnetic dipoles. The emission of electric dipole can be enhanced by both the electric and magnetic mode of the Au nanocup, while the emission of the magnetic dipole is only increased by the magnetic mode. The enhancement exhibits wavelength dependence. The wavelength of the largest enhancement is determined by the resonance wavelength of electric and magnetic modes. The enhancement values for electric and magnetic dipoles are determined by the near-field electric and magnetic field enhancements, respectively. More importantly, the emission pattern of magnetic dipole is greatly modified by the magnetic mode of Au nanocup. The directional emission of magnetic dipole is first time realized by use of the magnetic mode of the Au nanocup. Our findings deepen the understanding of the plasmon-controlled emission of electric and magnetic dipoles and will be very helpful to the development of the nanophotonic chips.
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Feng G, Lu B, Mi H. BARTHEL INDEX AND ITS ASSOCIATED HEALTH AND LIFE YEARS INDICATORS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1977] [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: 11/15/2022] Open
Affiliation(s)
- G Feng
- School of Public Affairs, Zhejiang University
| | - B Lu
- the ARC Centre of Excellence in Population Ageing Research, University of New South Wales
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Mi H, Lin X. SELF-ESTIMATED LIFE EXPECTANCY COMPARISON BETWEEN DAMAGED AND UNDAMAGED HOUSEHOLDS IN DISASTER. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2797] [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: 11/13/2022] Open
Affiliation(s)
- H. Mi
- ZheJiang University, Hangzhou, Zhejiang, China
| | - X. Lin
- ZheJiang University, Hangzhou, Zhejiang, China
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Guo M, Jin Y, Mi H. EFFECTS OF NATURAL DISASTER ON RURAL PEOPLE CHOICE OF OLD-AGED CARE MODEL—BASED ON BAOJI CASE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.520] [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: 11/14/2022] Open
Affiliation(s)
- M. Guo
- Zhejiang University, Hangzhou, China
| | - Y. Jin
- Zhejiang University, Hangzhou, China
| | - H. Mi
- Zhejiang University, Hangzhou, China
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Abstract
Over many years, parts of Panax ginseng (root and rhizome) have been identified and applied for medical purposes as traditional Chinese herbal medicine. Recently, research has indicated that ginseng fruit also contains similar compounds and is as rich as the other parts of the ginseng. This discovery may dramatically improve the efficient of outputs derived from ginseng products. Here, a new technique combining high-performance liquid chromatography (HPLC) with electrospray ionization tandem mass spectrometry (ESI-MS) was employed to identify the fingerprint of P. ginseng fruit. Using HPLC, compounds that are important for medical purposes were extracted and purified. Combined with ESI-MS, the characteristic peaks (nine common peaks) of those compounds were identified, and the accuracy was confirmed by analysis using the Chromatographic Fingerprint Similarity Evaluation System (2004A edition). Overall, 15 batches of ginseng fruit had a similarity of more than 0.80, 13 batches of samples had a similarity between 0.97 and 0.99, and two batches had a similarity less than 0.90. The test solution and mobile phase selection was discussed. The HPLC-ESI-MS method can produce repeatable and reliable results and can be applied in the quality control of P. ginseng fruit.
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Affiliation(s)
- H F Zhao
- Academy of Chinese Medical Sciences of Jilin Province, Changchun, China
| | - F F Xu
- Jilin Ji'an Yisheng Pharmaceutical Limited by Share Ltd., Ji'an, China
| | - Y T Guo
- Academy of Chinese Medical Sciences of Jilin Province, Changchun, China
| | - H Mi
- Academy of Chinese Medical Sciences of Jilin Province, Changchun, China
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Ruan S, Mi H, Petitjean C, Li H, Chen H, Robinson C, Dubray B, Vera P. Robust Optimal Feature Selection for Lung Tumor Recurrence Prediction in PET Imaging. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.021] [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: 11/27/2022]
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Chen K, Mi H, Xu G, Liu L, Sun X, Wang S, Meng Q, Lv T. The Efficacy and Safety of Tamsulosin Combined with Extracorporeal Shockwave Lithotripsy for Urolithiasis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Endourol 2015; 29:1166-76. [PMID: 25915454 DOI: 10.1089/end.2015.0098] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Many studies have been conducted to investigate adjunctive tamsulosin therapy after extracorporeal shockwave lithotripsy (SWL) for urolithiasis. The results from those studies, however, are still inconsistent. Therefore, we performed a meta-analysis to provide an update on the clinical efficacy and safety of tamsulosin combined with SWL for urolithiasis. METHODS A systematic search was performed in PubMed, Cochrane Library, and Embase to identify all relevant randomized controlled trials until January 2015. Two reviewers independently assessed trial quality and extracted data. Meta-analysis was conducted with Review Manager (RevMan), version 5.1. RESULTS Twenty-one studies (2093 subjects in total) were identified in the current meta-analysis. Compared with a control group, the experimental group (tamsulosin combined with SWL) showed an increased overall benefit for stone expulsion, with pooled risk ratio (RR) of 1.20 (95% confidence interval [CI], 1.15-1.26). With respect to the different geographic regions, European and American had a high possibility of improvement in stone expulsion (RR: 1.33, 95% CI, 1.19-1.49). According to the stone locations (renal, upper and lower ureteral) and sizes (4-10 mm and 11-24 mm), tamsulosin is more useful for lower ureteral stone (RR: 1.28; 95% CI, 1.14-1.43) and larger sized stones (RR: 1.49; 95% CI, 1.28-1.75). The effect estimates did not vary markedly when stratified by follow-up durations but varied by dose of tamsulosin. Furthermore, a shorter expulsion time, reduced occurrence of steinstrasse, fewer incidences of colic, and lower analgesic requirements were observed within the experimental group. In addition, tamsulosin is well tolerated, and its adverse events rarely led to dropouts of patients. CONCLUSIONS Overall, evidence suggests that tamsulosin combined with SWL is safe and effective in enhancing stone expulsion for patients with urolithiasis. Furthermore, high-quality, randomized and placebo-controlled trials evaluating the efficacy and safety of tamsulosin should be performed.
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Affiliation(s)
- Kai Chen
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
| | - Hua Mi
- 2 Institute of Urology and Nephrology, First Affiliated Hospital of Guangxi Medical University , Nanning, Guangxi Zhuang Autonomous Region, China
| | - Guangyu Xu
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
| | - Lin Liu
- 3 Department of Oncology, The People's Hospital of AnQiu City , Shandong Province, China
| | - Xiubin Sun
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
| | - Shiping Wang
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
| | - Qingrong Meng
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
| | - Tao Lv
- 1 Department of Urology, The People's Hospital of LaiWu City, LaiWu Affiliated Hospital of Taishan Medical College , Shandong Province, China
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Shen N, Qin Y, Wang Q, Liao S, Zhu J, Zhu Q, Mi H, Adhikari B, Wei Y, Huang R. Production of succinic acid from sugarcane molasses supplemented with a mixture of corn steep liquor powder and peanut meal as nitrogen sources by Actinobacillus succinogenes. Lett Appl Microbiol 2015; 60:544-51. [PMID: 25647487 DOI: 10.1111/lam.12399] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 01/13/2015] [Accepted: 01/26/2015] [Indexed: 12/16/2023]
Abstract
The potential of using corn steep liquor powder (CSLP), peanut meal (PM), soybean meal (SM), cotton meal (CM) and urea as the substitute of yeast extract (YE) as the nitrogen source was investigated for producing succinic acid (SA). Actinobacillus succinogenes GXAS137 was used as the fermenting bacterium and sugarcane molasses was used as the main substrate. None of these materials were able to produce SA as high as YE did. The CSLP could still be considered as a feasible and inexpensive alternate for YE as the yield of SA produced using CSLP was second only to the yield of SA obtained by YE. The use of CSLP-PM mixed formulation (CSLP to PM ratio = 2·6) as nitrogen source produced SA up to 59·2 g l(-1) with a productivity of 1·2 g l(-1) h(-1). A batch fermentation using a stirred bioreactor produced up to 60·7 g l(-1) of SA at the same formulation. Fed-batch fermentation that minimized the substrate inhibition produced 64·7 g l(-1) SA. These results suggest that sugarcane molasses supplemented with a mixture of CSLP and PM as the nitrogen source could be used to produce SA more economically using A. succinogenes. Significance and impact of the study: Succinic acid (SA) is commonly used as a platform chemical to produce a number of high value derivatives. Yeast extract (YE) is used as a nitrogen source to produce SA. The high cost of YE is currently the limiting factor for industrial production of SA. This study reports the use of a mixture of corn steep liquor powder (CSLP) and peanut meal (PM) as an inexpensive nitrogen source to substitute YE. The results showed that this CSLP-PM mixed formulation can be used as an effective and economic nitrogen source for the production of SA.
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Affiliation(s)
- N Shen
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Y Qin
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Q Wang
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - S Liao
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - J Zhu
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Q Zhu
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - H Mi
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - B Adhikari
- School of Applied Sciences, RMIT University, City Campus, Melbourne, Australia
| | - Y Wei
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - R Huang
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
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Chen K, Mi H, Gao Y, Tan A, Lu Z, Wu C, Liao M, Zhang Y, Mo Z. Metabolic Syndrome: A Potential and Independent Risk Factor for Erectile Dysfunction in the Chinese Male Population. Urology 2012; 80:1287-92. [DOI: 10.1016/j.urology.2012.08.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 08/17/2012] [Accepted: 08/21/2012] [Indexed: 12/19/2022]
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Mi H, Chen K, Mo ZN. [Epidemiological characteristics of chronic prostatitis in China]. Zhonghua Nan Ke Xue 2012; 18:579-582. [PMID: 22994040] [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: 06/01/2023]
Abstract
Chronic prostatitis (CP) is a common urinary disease that has been challenging urologists and seriously affects the patient's mental and physical health. For the reasons of its ambiguous etiology, complex and varied clinical symptoms, controversial diagnostic methods and long-term treatment, the therapeutic effect on CP is often unsatisfactory to both patients and urologists. This review focuses on the prevalence and age distribution of CP, incidence of different types of prostatitis, and the association of CP with climate, occupation, related diseases, lifestyle and education level, with a special emphasis on the current epidemiological characteristics of CP in China.
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Affiliation(s)
- Hua Mi
- Department of Urology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, China.
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Mi H, Gao Y, Yan Y, Wu Y, Tan A, Yang X, Zhang H, Zhang Y, Lv W, Mo Z. Research of Correlation Between the Amount of Leukocyte in EPS and NIH-CPSI: Result From 1242 Men in Fangchenggang Area in Guangxi Province. Urology 2012; 79:403-8. [DOI: 10.1016/j.urology.2011.09.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 09/13/2011] [Accepted: 09/20/2011] [Indexed: 10/15/2022]
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Zhao LZ, Guo Y, Dou Y, Wang B, Mi H, Ren YL. Application of artificial neural networks to the nondestructive determination of ciprofloxacin hydrochloride in powder by short-wavelength NIR spectroscopy. J Anal Chem 2007. [DOI: 10.1134/s1061934807120106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gupta A, Wroe C, Mi H, Asher J, Gok MA, Shenton BK, Ward M, Talbot D. Cardiovascular risk assessment scoring system for the determination of cardiovascular mortality in renal transplant patients. Transplant Proc 2006; 37:3290-1. [PMID: 16298576 DOI: 10.1016/j.transproceed.2005.09.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/25/2022]
Abstract
It is well known that the greatest risk for mortality post-renal transplant is cardiovascular death. We compared a modified cardiac risk assessment system among renal transplant patients who subsequently died versus the group that survived. There was a good correlation between the low, medium, and high scores with survival. The deceased group had significantly greater cardiovascular scores than case controls.
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Affiliation(s)
- A Gupta
- Department of Renal and Liver Transplant, The Freeman Hospital, High Heaton, Newcastle Upon Tyne NE7 7DN, UK.
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Gupta A, Mi H, Wroe C, Jaques B, Talbot D. Fatal Candida famata peritonitis complicating sclerosing peritonitis in a peritoneal dialysis patient. Nephrol Dial Transplant 2006; 21:2036-7. [PMID: 16476714 DOI: 10.1093/ndt/gfl040] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mi H, Carter V, Gupta A, Asher J, Shenton BK, Stamp S, Wong YT, Gok MA, Talbot D. Anti-vimentin Antibody Detection in Recipients of Heart-Beating and Non–Heart Beating Donor Kidneys. Transplant Proc 2005; 37:3269-71. [PMID: 16298568 DOI: 10.1016/j.transproceed.2005.09.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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: 11/20/2022]
Abstract
Alternative donor sources include non-heart-beating donors (NHBDs). There donors have been exposed to significant ischemia, so that it is common to utilize machine perfusion to either improve the organs or at least assess their viability. Both prolonged warm ischemia and machine perfusion can potentially damage the vascular endothelium, thereby exposing vimentin to antigenic recognition. The aim of this study was to determine whether anti-vimentin antibodies could be detected in the blood of renal transplant recipients at specific time points after transplant and whether they could be related to the donor source. Fifty-one recipients of NHBD kidneys were compared to 52 recipients of heart-beating donor (HBD) kidneys. All recipients had similar anti-vimentin levels pretransplant. However, at 1 month those kidneys from Maastricht category II NHB donors showed significantly higher levels. At 6 months both Maastricht category II and category III NHB donor recipients displayed significantly higher levels than recipients of HBD kidneys.
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Affiliation(s)
- H Mi
- Renal/Liver Transplant Unit, The Freeman Hospital, High Heaton, Newcastle Upon Tyne NE7 7DN, UK
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Mi H, Gupta A, Gok MA, Asher J, Shenton BK, Stamp S, Carter V, Del Rio Martin J, Soomro NA, Jaques BC, Manas DM, Talbot D. Do Recipients of Kidneys From Donors Treated With Streptokinase Develop Anti-streptokinase Antibodies? Transplant Proc 2005; 37:3272-3. [PMID: 16298569 DOI: 10.1016/j.transproceed.2005.09.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/28/2022]
Abstract
Streptokinase is used for preflush for non-heart-beating donors (NHBDs) in our center. The aim of this study was to evaluate whether the use of thrombolytic streptokinase results in the production of anti-streptokinase antibodies in the recipients after renal transplantation. Recipient sera taken prior to and at 1 and 6 months posttransplant were tested for the presence of antibodies to streptokinase using an enzyme-linked immunosorbent assay assay. No differences were detected between a group of 18 recipients who had kidneys from thrombolytic-treated NHBDs and a further group of 18 who received NHBD kidneys without such treatment.
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Affiliation(s)
- H Mi
- Department of Renal and Liver Transplant, The Freeman Hospital, High Heaton, Newcastle Upon Tyne NE7 7DN, United Kingdom.
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Mi H, Hiramoto K, Kujirai K, Ando K, Ikarashi Y, Kikugawa K. Effect of food reductones, 2,5-dimethyl-4-hydroxy-3(2H)-furanone (DMHF) and hydroxyhydroquinone (HHQ), on lipid peroxidation and type IV and I allergy responses of mouse. J Agric Food Chem 2001; 49:4950-5. [PMID: 11600049 DOI: 10.1021/jf010556l] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effect of long-term supplementation of food reductones, 2,5-dimethyl-4-hydroxy-3(2H)-furanone (DMHF) (2%, w/w), detected in many foodstuffs including soy sauce, and hydroxyhydroquinone (1,2,4-benzenetriol) (HHQ) (1.2%, w/w), detected in coffee, on mouse lipid peroxidation and type IV and I allergy responses was investigated. The effect of supplementation of these reductones combined with NO(2) inhalation (5-6 ppm) was also investigated. Levels of thiobarbituric acid-reactive substances in lung were remarkably increased, and those in kidney and liver were slightly decreased by supplementation of DMHF or HHQ. The degree of 2,4-dinitrochlorobenzene (DNCB)-sensitized lymph node cell proliferation as assessed by lymph node assay was remarkably enhanced by supplementation of DMHF or HHQ. Both the DNCB-sensitized and the trimellitic anhydride-sensitized increases in IgE levels of mice were enhanced to greater extent by supplementation of DMHF or HHQ. In no cases were additive effects of NO(2) inhalation observable. Allergen-sensitized type IV and I allergy responses of mice may be enhanced by supplementation of food reductones, DMHF or HHQ.
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Affiliation(s)
- H Mi
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Tokyo 192-0392, Japan
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Chu J, Yuan Z, Liu X, Wu Q, Mi H, He B. Separation of six uremic middle molecular compounds by high performance liquid chromatography and analysis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Clin Chim Acta 2001; 311:95-107. [PMID: 11566169 DOI: 10.1016/s0009-8981(01)00585-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 11/16/2022]
Abstract
BACKGROUND Since the postulation of uremic middle molecule (UMM) hypothesis made by Babb et al. [Trans-Am Soc Artif Intern Organs 18 (1972) 98], there has been great interest in the separation and identification of the role of UMM. However, few of the compounds isolated from UMM fractions were demonstrated to play an important role in humans. Thus, the separation and identification of the real UMM is essential for UMM research. METHODS Urine and serum samples from uremic patients and healthy subjects were separated by gel permeation chromatography. Two presumed UMM fractions, A and B, were obtained from uremic sera and urine, normal urine, but not normal sera. Fraction A was further isolated by anion exchange chromatography and a series of sub-peaks were obtained. The sub-fraction A-3 obtained in the second step was desalted on a Sephadex G-15 column, and characterized by IR, UV and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Further separation of sub-fraction A-3 was performed by high performance liquid chromatography (HPLC). RESULTS By gel permeation chromatography, two UMM peaks (A and B) were detected at 206 nm in normal urine, uremic sera, but they were barely noticed in the profile of normal sera. In contrast, the absorption at 206 nm of fractions A and B from uremic serum and urine were smaller than that of fractions A and B from normal urine. Fractions A from different origins were resolved into eight to nine sub-peaks at 230 nm by anion exchange chromatography. One of these sub-peaks, A-3, was detected in uremic serum and normal urine, but is undetectable in uremic urine. After desalting, sub-fraction A-3 was separated into two parts designated as A-3-I and A-3-II. MALDI-TOF-MS revealed that fraction A-3-I and A-3-II from two origins were identical, respectively-fraction A-3-I contained three components with MW 839.69, 1007.94 and 2015.16 and fraction A-3-II consisted of another three components with MW 873.69, 1106.67 and 1680.28. Six middle molecular compounds in sub-fraction A-3 were thoroughly resolved by HPLC. CONCLUSION Our results demonstrated that the UMM sub-fraction A-3 contains the real UMM in the MW range of 800-2015 Da. By multi-step chromatographic isolation, six real middle molecular compounds were purified and characterized with MALDI-TOF-MS. It is likely that three of these UMM compounds are important, as they readily accumulated in sera of uremic patients, but are normally excreted in healthy subjects.
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Affiliation(s)
- J Chu
- The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Institute of Polymer Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, PR China
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Xing W, Liu L, Jia N, Lin P, Mi H, Wu Y. [Identification of red kojic from different habitats with clustering analysis by near-infrared diffuse reflectance spectrometry]. Zhong Yao Cai 2001; 24:561-3. [PMID: 11715192] [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: 02/22/2023]
Abstract
OBJECTIVE To provide a new method for identifying Red kojic. METHODS Being controled with the Aspergillus terreus, near-infrared diffuse reflectance spectroscopy combining with clusering analysis was used in the identification of Red Kojic made by M. purpureus fermentation from 18 different habitats. RESULTS We can easily distinguish the Red Kojic from different habitats and the Aspergillus terreus. The results are consistent in some degree with that of morphologic study. CONCLUSION This method is a new, rapid, simple and low cost assay technique being able to be used in the quality control of Red Kojic.
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Affiliation(s)
- W Xing
- College of Pharmacy, Second Military Medical University, Shanghai 200433
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Fair K, Anderson M, Bulanova E, Mi H, Tropschug M, Diaz MO. Protein interactions of the MLL PHD fingers modulate MLL target gene regulation in human cells. Mol Cell Biol 2001; 21:3589-97. [PMID: 11313484 PMCID: PMC100280 DOI: 10.1128/mcb.21.10.3589-3597.2001] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.8] [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: 12/13/2022] Open
Abstract
The PHD fingers of the human MLL and Drosophila trx proteins have strong amino acid sequence conservation but their function is unknown. We have determined that these fingers mediate homodimerization and binding of MLL to Cyp33, a nuclear cyclophilin. These two proteins interact in vitro and in vivo in mammalian cells and colocalize at specific nuclear subdomains. Overexpression of the Cyp33 protein in leukemia cells results in altered expression of HOX genes that are targets for regulation by MLL. These alterations are suppressed by cyclosporine and are not observed in cell lines that express a mutant MLL protein without PHD fingers. These results suggest that binding of Cyp33 to MLL modulates its effects on the expression of target genes.
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Affiliation(s)
- K Fair
- Cancer Center, Medical Center, Loyola University-Chicago, Maywood, Illinois 60153
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Mi H, Haeberle H, Barres BA. Induction of astrocyte differentiation by endothelial cells. J Neurosci 2001; 21:1538-47. [PMID: 11222644 PMCID: PMC6762957] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
Here we have investigated the mechanisms that control astrocyte differentiation within the developing rat optic nerve. Astrocytes are normally generated by astrocyte precursor cells within the embryonic optic nerve. We show that there is a close temporal and spatial correlation between endothelial and astrocyte differentiation. We tested the potential role of endothelial cells in inducing astrocyte differentiation by developing an immunopanning method to highly purify endothelial cells from developing optic nerves. We show that the purified endothelial cells, but not other embryonic optic nerve cell types, strongly induce the differentiation of purified astrocyte precursor cells into astrocytes in vitro. Leukemia inhibitory factor (LIF) and LIF receptors have been implicated previously in astrocyte differentiation in vivo. We show that purified endothelial cells express LIF mRNA and that their ability to induce astrocyte differentiation is prevented by a neutralizing anti-LIF, but not anti-ciliary neurotrophic factor, antiserum. These findings demonstrate a role for endothelial cells in inducing astrocyte differentiation. The induction of astrocyte differentiation by endothelial cells makes sense phylogenetically, anatomically, and functionally, because astrocytes evolved concurrently with brain vasculature and ensheathe capillaries throughout the brain. The ability to purify and culture astrocytes and endothelial cells should provide an excellent model system for future studies of blood-brain barrier development.
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Affiliation(s)
- H Mi
- Stanford University School of Medicine, Department of Neurobiology, Stanford, California 94305-5125, USA
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Venter JC, Adams MD, Myers EW, Li PW, Mural RJ, Sutton GG, Smith HO, Yandell M, Evans CA, Holt RA, Gocayne JD, Amanatides P, Ballew RM, Huson DH, Wortman JR, Zhang Q, Kodira CD, Zheng XH, Chen L, Skupski M, Subramanian G, Thomas PD, Zhang J, Gabor Miklos GL, Nelson C, Broder S, Clark AG, Nadeau J, McKusick VA, Zinder N, Levine AJ, Roberts RJ, Simon M, Slayman C, Hunkapiller M, Bolanos R, Delcher A, Dew I, Fasulo D, Flanigan M, Florea L, Halpern A, Hannenhalli S, Kravitz S, Levy S, Mobarry C, Reinert K, Remington K, Abu-Threideh J, Beasley E, Biddick K, Bonazzi V, Brandon R, Cargill M, Chandramouliswaran I, Charlab R, Chaturvedi K, Deng Z, Di Francesco V, Dunn P, Eilbeck K, Evangelista C, Gabrielian AE, Gan W, Ge W, Gong F, Gu Z, Guan P, Heiman TJ, Higgins ME, Ji RR, Ke Z, Ketchum KA, Lai Z, Lei Y, Li Z, Li J, Liang Y, Lin X, Lu F, Merkulov GV, Milshina N, Moore HM, Naik AK, Narayan VA, Neelam B, Nusskern D, Rusch DB, Salzberg S, Shao W, Shue B, Sun J, Wang Z, Wang A, Wang X, Wang J, Wei M, Wides R, Xiao C, Yan C, Yao A, Ye J, Zhan M, Zhang W, Zhang H, Zhao Q, Zheng L, Zhong F, Zhong W, Zhu S, Zhao S, Gilbert D, Baumhueter S, Spier G, Carter C, Cravchik A, Woodage T, Ali F, An H, Awe A, Baldwin D, Baden H, Barnstead M, Barrow I, Beeson K, Busam D, Carver A, Center A, Cheng ML, Curry L, Danaher S, Davenport L, Desilets R, Dietz S, Dodson K, Doup L, Ferriera S, Garg N, Gluecksmann A, Hart B, Haynes J, Haynes C, Heiner C, Hladun S, Hostin D, Houck J, Howland T, Ibegwam C, Johnson J, Kalush F, Kline L, Koduru S, Love A, Mann F, May D, McCawley S, McIntosh T, McMullen I, Moy M, Moy L, Murphy B, Nelson K, Pfannkoch C, Pratts E, Puri V, Qureshi H, Reardon M, Rodriguez R, Rogers YH, Romblad D, Ruhfel B, Scott R, Sitter C, Smallwood M, Stewart E, Strong R, Suh E, Thomas R, Tint NN, Tse S, Vech C, Wang G, Wetter J, Williams S, Williams M, Windsor S, Winn-Deen E, Wolfe K, Zaveri J, Zaveri K, Abril JF, Guigó R, Campbell MJ, Sjolander KV, Karlak B, Kejariwal A, Mi H, Lazareva B, Hatton T, Narechania A, Diemer K, Muruganujan A, Guo N, Sato S, Bafna V, Istrail S, Lippert R, Schwartz R, Walenz B, Yooseph S, Allen D, Basu A, Baxendale J, Blick L, Caminha M, Carnes-Stine J, Caulk P, Chiang YH, Coyne M, Dahlke C, Deslattes Mays A, Dombroski M, Donnelly M, Ely D, Esparham S, Fosler C, Gire H, Glanowski S, Glasser K, Glodek A, Gorokhov M, Graham K, Gropman B, Harris M, Heil J, Henderson S, Hoover J, Jennings D, Jordan C, Jordan J, Kasha J, Kagan L, Kraft C, Levitsky A, Lewis M, Liu X, Lopez J, Ma D, Majoros W, McDaniel J, Murphy S, Newman M, Nguyen T, Nguyen N, Nodell M, Pan S, Peck J, Peterson M, Rowe W, Sanders R, Scott J, Simpson M, Smith T, Sprague A, Stockwell T, Turner R, Venter E, Wang M, Wen M, Wu D, Wu M, Xia A, Zandieh A, Zhu X. The sequence of the human genome. Science 2001; 291:1304-51. [PMID: 11181995 DOI: 10.1126/science.1058040] [Citation(s) in RCA: 7678] [Impact Index Per Article: 333.8] [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: 12/13/2022]
Abstract
A 2.91-billion base pair (bp) consensus sequence of the euchromatic portion of the human genome was generated by the whole-genome shotgun sequencing method. The 14.8-billion bp DNA sequence was generated over 9 months from 27,271,853 high-quality sequence reads (5.11-fold coverage of the genome) from both ends of plasmid clones made from the DNA of five individuals. Two assembly strategies-a whole-genome assembly and a regional chromosome assembly-were used, each combining sequence data from Celera and the publicly funded genome effort. The public data were shredded into 550-bp segments to create a 2.9-fold coverage of those genome regions that had been sequenced, without including biases inherent in the cloning and assembly procedure used by the publicly funded group. This brought the effective coverage in the assemblies to eightfold, reducing the number and size of gaps in the final assembly over what would be obtained with 5.11-fold coverage. The two assembly strategies yielded very similar results that largely agree with independent mapping data. The assemblies effectively cover the euchromatic regions of the human chromosomes. More than 90% of the genome is in scaffold assemblies of 100,000 bp or more, and 25% of the genome is in scaffolds of 10 million bp or larger. Analysis of the genome sequence revealed 26,588 protein-encoding transcripts for which there was strong corroborating evidence and an additional approximately 12,000 computationally derived genes with mouse matches or other weak supporting evidence. Although gene-dense clusters are obvious, almost half the genes are dispersed in low G+C sequence separated by large tracts of apparently noncoding sequence. Only 1.1% of the genome is spanned by exons, whereas 24% is in introns, with 75% of the genome being intergenic DNA. Duplications of segmental blocks, ranging in size up to chromosomal lengths, are abundant throughout the genome and reveal a complex evolutionary history. Comparative genomic analysis indicates vertebrate expansions of genes associated with neuronal function, with tissue-specific developmental regulation, and with the hemostasis and immune systems. DNA sequence comparisons between the consensus sequence and publicly funded genome data provided locations of 2.1 million single-nucleotide polymorphisms (SNPs). A random pair of human haploid genomes differed at a rate of 1 bp per 1250 on average, but there was marked heterogeneity in the level of polymorphism across the genome. Less than 1% of all SNPs resulted in variation in proteins, but the task of determining which SNPs have functional consequences remains an open challenge.
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Affiliation(s)
- J C Venter
- Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA.
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Mi H, Deng Y, Tanaka Y, Hibino T, Takabe T. Photo-induction of an NADPH dehydrogenase which functions as a mediator of electron transport to the intersystem chain in the cyanobacterium Synechocystis PCC6803. Photosynth Res 2001; 70:167-73. [PMID: 16228350 DOI: 10.1023/a:1017946524199] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Illumination of the dark-incubated cells of Synechocystis PCC6803 caused recovery of both respiratory activity of oxygen uptake and PS I-cyclic electron flow, which was monitored by the dark reduction of P700(+) in the presence of DCMU after a 50 ms pulse light (MT) under background far-red light, but the effects were much smaller in those of the mutant M55, which has an ndh-B defective gene. Activity of an NADPH-NBT oxidoreductase with a higher molecular mass (around 380 kDa), which was only found in wild type but not in M55, became evident after the dark-incubated cells were exposed to the light. Immuno-blotting analysis indicated that the NADPH-NBT oxidoreductase contains the NdhB subunit of NDH. The expression of NdhB decreased in dark-incubated cells and increased upon transfer of the cells back to light. These results indicate that an NADPH-specific NDH participates in the light-regulated cyclic electron transport around Photosystem I as well as in respiratory electron transport to the intersystem chain in Synechocystis 6803.
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Affiliation(s)
- H Mi
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China,
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Mi H, Klughammer C, Schreiber U. Light-induced dynamic changes of NADPH fluorescence in Synechocystis PCC 6803 and its ndhB-defective mutant M55. Plant Cell Physiol 2000; 41:1129-35. [PMID: 11148271 DOI: 10.1093/pcp/pcd038] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Blue-green fluorescence emission of intact cells of Synechocystis PCC6803 and of its ndhB-defective mutant M55 was measured with a standard pulse-amplitude-modulation chlorophyll fluorometer equipped with a new type of emitter-detector unit featuring pulse-modulated UV-A measuring light and a photomultiplier detector. A special illumination program of repetitive saturating light pulses with intermittent dark periods (10 s light, 40 s dark) was applied to elicit dynamic fluorescence changes under conditions of quasi-stationary illumination. The observed effects of artificial electron acceptors and inhibitors on the responses of wild-type and mutant M55 cells lead to the conclusion that changes of NAD(P)H fluorescence are measured. In control samples, a rapid phase of light-driven NADP reduction is overlapped by a somewhat slower phase of NADPH oxidation which is suppressed by iodoacetic acid and, hence, appears to reflect NADPH oxidation by the Calvin cycle. Mercury chloride transforms the light-driven positive response into a negative one, suggesting that inhibition of NADP reduction at the acceptor side of PSI leads to reduction of molecular oxygen, with the hydrogen peroxide formed (via superoxide) causing rapid oxidation of NADPH. The new fluorescence approach opens the way for new insights into the complex interactions between photosynthetic and respiratory pathways in cyanobacteria.
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Affiliation(s)
- H Mi
- Lehrstuhl Botanik I, Julius-von-Sachs Institut für Biowissenschaften, Universität Würzburg, Germany
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Abstract
Polycyclic aromatic hydrocarbons (PAHs) emitted from 25 industrial boilers were investigated. The fuels used for these 25 boilers included 21 heavy oil, two diesel, a co-combustion of heavy oil and natural gas (HO+NG) and a co-combustion of coke oven gas and blast furnace gas (COG+BFG) boilers. PAH samples from the stack flue gas (gas and particle phases) of these 25 boilers were collected by using a PAH stack sampling system. Twenty one individual PAHs were analyzed primarily by a gas chromatography/mass spectrometer (GC/MS). Total-PAH concentration in the flue gas of 83 measured data for these 25 boiler stacks ranged between 29.0 and 4250 microg/m(3) and averaged 488 microg/m(3). The average of PAH-homologue mass (F%) counted for the total-PAH mass was 54.7%, 9.47% and 15.3% for the 2-ring, 3-ring and 4-ring PAHs, respectively. The PAHs in the stack flue gas were dominant in the lower molecular weight PAHs. The emission factors (EFs) of total-PAHs were 13,300, 2920, 2880 and 208 microg/kg-fuel for the heavy oil, diesel, HO+NG and COG+BFG fueled-boiler, respectively. Nap was the most predominant PAH occurring in the stack flue gas. In addition, the EF of 21 individual PAHs in heavy-oil boiler were almost the highest among the four various fueled-boilers except for those of FL and BkF in the diesel boiler. Furthermore, the EF of total-PAHs or BaP for heavy oil were both one order of magnitude higher than that for the diesel-fueled boiler.
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Affiliation(s)
- C Li
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
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Song H, Guo T, Zhang Y, Chi W, Mi H, Chu W. [Studies on gel electrophoresis of soluble protein and two kinds of isodynamic enzyme in hongqu from different producing areas]. Zhongguo Zhong Yao Za Zhi 1999; 24:393-6, 445. [PMID: 12205873] [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: 02/26/2023]
Abstract
OBJECTIVE To investigate the consanguinity between 12 strains of Monascus(MS 01-12) separated and purified from different samples of Hongqu collected from 12 areas in China and the variant strain of Monascus(MS 18) mutated from M. purpureus. METHOD Gel electrophoresis of soluble protein, esterase and superoxide dismutase(SOD) was used to study the consanguinity between strains MS 01-12 and the variant strain MS 18. RESULTS The electrochromatophoreses of soluble protein, esterase and SOD in the 12 strains (MS 01-12) are identical, but in the variant strain MS 18 are remarkably different. The results are consistent with those of morphological studies. CONCLUSION Strains MS 01-12 are the identical species M. purpureus, but strain MS 18 is different from strains of MS 01-12, or a variant of M. purpureus.
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Affiliation(s)
- H Song
- Department of Pharmacy, Shenyang Military General Hospital, Shenyang 110015
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