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Tang TT, Lv LL, Wang B, Cao JY, Feng Y, Li ZL, Wu M, Wang FM, Wen Y, Zhou LT, Ni HF, Chen PS, Gu N, Crowley SD, Liu BC. Erratum: Employing Macrophage-Derived Microvesicle for Kidney-Targeted Delivery of Dexamethasone: An Efficient Therapeutic Strategy against Renal Inflammation and Fibrosis: Erratum. Theranostics 2023; 13:870. [PMID: 36632212 PMCID: PMC9830448 DOI: 10.7150/thno.78981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
[This corrects the article DOI: 10.7150/thno.33520.].
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Affiliation(s)
- Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China,✉ Corresponding authors: Bi-Cheng Liu () or Lin-Li Lv ()
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Jing-Yuan Cao
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ye Feng
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Min Wu
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Feng-Mei Wang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Yi Wen
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Hai-Feng Ni
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ping-Sheng Chen
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Steven D. Crowley
- Division of Nephrology, Department of Medicine, Duke University and Durham VA Medical Centers, Durham, North Carolina, United States
| | - Bi-Cheng Liu
- ✉ Corresponding authors: Bi-Cheng Liu () or Lin-Li Lv ()
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Wang YW, Wang L, Yuan SJ, Zhang Y, Zhang X, Zhou LT. Postoperative Cognitive Dysfunction and Alzheimer’s Disease: A Transcriptome-Based Comparison of Animal Models. Front Aging Neurosci 2022; 14:900350. [PMID: 35837480 PMCID: PMC9273890 DOI: 10.3389/fnagi.2022.900350] [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: 03/20/2022] [Accepted: 06/08/2022] [Indexed: 12/02/2022] Open
Abstract
Background Postoperative cognitive dysfunction (POCD) is a common complication characterized by a significant cognitive decline. Increasing evidence suggests an association between the pathogenesis of POCD and Alzheimer’s disease (AD). However, a comprehensive understanding of their relationships is still lacking. Methods First, related databases were obtained from GEO, ArrayExpress, CNGB, and DDBJ repositories. De novo analysis was performed on the raw data using a uniform bioinformatics workflow. Then, macro- and micro-level comparisons were conducted between the transcriptomic changes associated with AD and POCD. Lastly, POCD was induced in male C57BL/6j mice and the hippocampal expression levels of mRNAs of interest were verified by PCR and compared to those in AD congenic models. Results There was a very weak correlation in the fold-changes in protein-coding transcripts between AD and POCD. Overall pathway-level comparison suggested that AD and POCD are two disease entities. Consistently, in the classical AD pathway, the mitochondrial complex and tubulin mRNAs were downregulated in both the POCD hippocampus and cortex. POCD and AD hippocampi might share the same pathways, such as tryptophan metabolism, but undergo different pathological changes in phagosome and transferrin endocytosis pathways. The core cluster in the hippocampal network was mainly enriched in mitosis-related pathways. The hippocampal expression levels of genes of interest detected by PCR showed good consistency with those generated by high throughput platforms. Conclusion POCD and AD are associated with different transcriptomic changes despite their similar clinical manifestations. This study provides a valuable resource for identifying biomarkers and therapeutic targets for POCD.
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Affiliation(s)
- Yi-Wei Wang
- Department of Anesthesiology, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
| | - Liang Wang
- Department of Internal Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
| | - Sheng-Jie Yuan
- Department of Anesthesiology, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
| | - Yuan Zhang
- Department of Internal Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
| | - Xin Zhang
- Department of Anesthesiology, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
- Department of Anesthesiology, Center for Translational Pain Medicine, Duke University School of Medicine, Durham, NC, United States
- Xin Zhang,
| | - Le-Ting Zhou
- Department of Internal Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, China
- *Correspondence: Le-Ting Zhou,
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Ni L, Bai R, Zhou Q, Yuan C, Zhou LT, Wu X. The correlation between ferroptosis and m6A methylation in patients with acute kidney injury. Kidney Blood Press Res 2022; 47:523-533. [PMID: 35569444 DOI: 10.1159/000524900] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 04/23/2022] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The present research analyzed the correlation between m6A methylation and ferroptosis associated genes (FAGs) in acute kidney injury (AKI) patients. METHODS Bioinformatics analysis of microarray profiles (GSE30718) were performed to select differential expression genes (DEGs). FAGs are derived from systematic analysis of the aberrances and functional implications. The m6A methylation related genes were derived from the molecular characterization and clinical significance of m6A modulators. The multi-gene correlation of ferroptosis and M6A methylation modification were displayed. Then, the CIBERSORT algorithm was used to analyse the proportions of 22 immune cells infiltration. RESULTS In total, 349 DEGs were extracted between the AKI and control samples, among which 172 genes were up-regulated and 177 were down-regulated. FAGs (SLC1A5, CARS, SAT1, ACSL4, NFE2L2, TFRC and MT1G) and m6A methylation related genes (YTHDF3, WTAP and IGF2BP3) were significantly increased in AKI patients (P< 0.05). FAGs (SAT1, ACSL4 and NFE2L2) was positively correlated with the expression level of m6A methylation genes (P< 0.05). NFE2L2 has high diagnostic value, and level of NFE2L2 was negatively correlated with the degree of follicular helper T (TFH) cells infiltration. CONCLUSION Our research could provide a new theoretical basis for the pathogenesis and immune mechanism of AKI.
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Affiliation(s)
- Lihua Ni
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Rui Bai
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiuyuan Zhou
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Pathology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China
| | - Cheng Yuan
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Le-Ting Zhou
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
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Shen X, Zhou LT, Li AQ, Yi HM, Ouyang BS, Xu HM, Xie JL, Gu YJ, Zhang L, Dong L. [Clinicopathological features and prognosis of high-grade B-cell lymphoma with MYC and bcl-2 and/or bcl-6 rearrangements]. Zhonghua Bing Li Xue Za Zhi 2022; 51:120-125. [PMID: 35152630 DOI: 10.3760/cma.j.cn112151-20210826-00604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological characteristics and prognosis of high-grade B-cell lymphoma (HGBL) involving combined rearrangements of MYC, bcl-2 and bcl-6. Methods: A total of 1 138 cases of large B cell lymphoma (LBL) that were treated at the Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine from January 2017 to September 2020 were analyzed using fluorescence in situ hybridization (FISH) with probes against MYC, bcl-2 and bcl-6. The clinical and pathological data of the 45 patients with HGBL that had rearrangements of MYC and bcl-2 and/or bcl-6 were collected and retrospectively analyzed. Results: Among the 1 138 LBL, 45 (4.0%) cases had combined rearrangements of MYC, bcl-2 and/or bcl-6 that included 6 HGBL cases with MYC, bcl-2 and bcl-6 rearrangements, 14 HGBL cases with MYC and bcl-2 rearrangements, and 25 HGBL cases with MYC and bcl-6 rearrangements. Of these 45 patients, 29 patients were male, and 16 patients were female, aged 29 to 83 years. HGBL with MYC, bcl-2 and bcl-6 rearrangements and HGBL with MYC and bcl-2 rearrangement were reclassified as the germinal center B-cell (GCB) subtype using the Hans algorithm. HGBL with MYC and bcl-6 rearrangement were reclassified as the GCB subtype (68.0%) and the non-GCB subtype (32.0%). The vast majority of HGBL cases had a high Ki-67 proliferation index. Most HGBL patients had advanced stage disease with a high IPI score and an increased LDH level. Also, some patients had clinical features including elevated plasma β2-microglobulin levels, B symptoms, and bone marrow involvement. The IPI scores and LDH levels were significantly different between the HGBL cases with MYC, bcl-2 and bcl-6 rearrangements and the HGBL cases with MYC and bcl-6 rearrangements (P<0.05). Compared with the HGBL cases with MYC, bcl-2 and bcl-6 rearrangements, the HGBL cases with MYC and bcl-2 or bcl-6 rearrangements had a lower incidence of bone marrow involvement (P<0.05). There were no significant differences in the prognosis among HGBL cases with MYC, bcl-2 and bcl-6 rearrangements, the cases with MYC and bcl-2 rearrangements, and the cases with MYC and bcl-6 rearrangements (P>0.05). Conclusions: HGBL with MYC, bcl-2 and/or bcl-6 rearrangements are rare types of B-cell lymphoma with high degree of malignancy and have a short overall survival. To reduce misdiagnosis and improve diagnostic accuracy, it is necessary to assess the patients' clinical features and conduct histopathological, immunohistochemical and FISH analyses.
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Affiliation(s)
- X Shen
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L T Zhou
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - A Q Li
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - H M Yi
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - B S Ouyang
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - H M Xu
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J L Xie
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Y J Gu
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L Zhang
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L Dong
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Ni L, Cao J, Yuan C, Zhou LT, Wu X. Expression of Ferroptosis-Related Genes is Correlated with Immune Microenvironment in Diabetic Kidney Disease. Diabetes Metab Syndr Obes 2022; 15:4049-4064. [PMID: 36597492 PMCID: PMC9805740 DOI: 10.2147/dmso.s388724] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/26/2022] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE This study aims to explore the correlation between ferroptosis and immune microenvironment (IME) in diabetic kidney disease (DKD) to provide a new clue for exploring the underlying molecular mechanisms. METHODS Corresponding RNA data of DKD patients were downloaded from GEO databases. The weighted gene co-expression network analysis (WGCNA) was used to construct the network, and the selected hub genes, then, overlapped with ferroptosis-related genes (FRGs) from FerrDb. Consensus clustering was performed to identify new molecular subgroups. ESTIMATE, TIMER and ssGSEA analyses were applied to determinate the IME and immune status. Functional analyses including GO, KEGG and GSEA were conducted to elucidate the underlying mechanisms. RESULTS Two molecular subtypes were identified based on the expression of FRGs. ESTIMATE algorithm revealed that there were significant differences in ESTIMATE score between these two clusters of DKD patients, with no significant difference found in stromal score and immune score. In addition, TIMER algorithm indicated there was a significant difference in the degree of T cell infiltration. The ssGSEA algorithm showed immunity was mainly concentrated in thick ascending limb and distal convoluted tubule in adult kidney. GO, KEGG and GSEA analyses revealed that the differentially expressed genes (DEGs) were mainly enriched in immune and metabolism associated pathways. CONCLUSION The ferroptosis may be induced by dysregulation of IME, thereby accelerating the progression of DKD. Our work could be applied to provide a new clue for exploring the underlying molecular mechanisms and sheds novel light on the therapy strategy of DKD.
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Affiliation(s)
- Lihua Ni
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China
| | - Jingyuan Cao
- The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, People’s Republic of China
| | - Cheng Yuan
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China
| | - Le-Ting Zhou
- Department of Nephrology, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China
- Correspondence: Xiaoyan Wu; Le-Ting Zhou, Email ;
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Zhou LT, Zhang ZJ, Cao JY, Chen H, Zhu YS, Wu X, Nawabi AQ, Liu X, Shan W, Zhang Y, Zhang XR, Xue J, Hu L, Wang SS, Wang L, Sun ZX. The unique molecular mechanism of diabetic nephropathy: a bioinformatics analysis of over 250 microarray datasets. Clin Kidney J 2021; 14:1626-1638. [PMID: 34084458 PMCID: PMC8162860 DOI: 10.1093/ckj/sfaa190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/20/2020] [Indexed: 11/18/2022] Open
Abstract
Background/Aims Diabetic nephropathy (DN) is one of the main causes of end-stage kidney disease worldwide. Emerging studies have suggested that its pathogenesis is distinct from nondiabetic renal diseases in many aspects. However, it still lacks a comprehensive understanding of the unique molecular mechanism of DN. Methods A total of 255 Affymetrix U133 microarray datasets (Affymetrix, Santa Calra, CA, USA) of human glomerular and tubulointerstitial tissues were collected. The 22 215 Affymetrix identifiers shared by the Human Genome U133 Plus 2.0 and U133A Array were extracted to facilitate dataset pooling. Next, a linear model was constructed and the empirical Bayes method was used to select the differentially expressed genes (DEGs) of each kidney disease. Based on these DEG sets, the unique DEGs of DN were identified and further analyzed using gene ontology and pathway enrichment analysis. Finally, the protein–protein interaction networks (PINs) were constructed and hub genes were selected to further refine the results. Results A total of 129 and 1251 unique DEGs were identified in the diabetic glomerulus (upregulated n = 83 and downregulated n = 203) and the diabetic tubulointerstitium (upregulated n = 399 and downregulated n = 874), respectively. Enrichment analysis revealed that the DEGs in the diabetic glomerulus were significantly associated with the extracellular matrix, cell growth, regulation of blood coagulation, cholesterol homeostasis, intrinsic apoptotic signaling pathway and renal filtration cell differentiation. In the diabetic tubulointerstitium, the significantly enriched biological processes and pathways included metabolism, the advanced glycation end products–receptor for advanced glycation end products signaling pathway in diabetic complications, the epidermal growth factor receptor (EGFR) signaling pathway, the FoxO signaling pathway, autophagy and ferroptosis. By constructing PINs, several nodes, such as AGR2, CSNK2A1, EGFR and HSPD1, were identified as hub genes, which might play key roles in regulating the development of DN. Conclusions Our study not only reveals the unique molecular mechanism of DN but also provides a valuable resource for biomarker and therapeutic target discovery. Some of our findings are promising and should be explored in future work.
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Affiliation(s)
- Le-Ting Zhou
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Zhi-Jian Zhang
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Jing-Yuan Cao
- Nephrology Department, Taizhou People's Hospital, Fifth Affiliated Hospital to Nantong University, Taizhou, Jiangsu, China
| | - Hanzhi Chen
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Yu-Shan Zhu
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Xi Wu
- Department of Bioinformatics, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Abdul Qadir Nawabi
- School of Medicine, Southeast University Zhongda Hospital, Nanjing, Jiangsu, China
| | - Xiaobin Liu
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Weiwei Shan
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Yue Zhang
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Xi-Ran Zhang
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Jing Xue
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Ling Hu
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Si-Si Wang
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Liang Wang
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
| | - Zhu-Xing Sun
- Department of Nephrology, Nanjing Medical University Affiliated Wuxi People's Hospital, Wuxi, Jiangsu, China
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Zhu L, Zuo LL, Zhou LT, Shi JY, Xia RR, Feng G, Pan DW, Wu SY. The Analysis of Drug-Resistant Gene Mutations of Mycobacterium tuberculosis by GeneChip in Lianyungang, China. Clin Lab 2020; 66. [PMID: 32013351 DOI: 10.7754/clin.lab.2019.190526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Tuberculosis (TB) has raised major global health concerns, especially for that caused by drug-resistant Mycobacterium tuberculosis (M. tuberculosis). The control of TB was hampered by time-consuming and insensitive diagnostic methods. GeneChip analysis is a rapid method for screening and identifying the gene mutations of M. tuberculosis. However, there was little relevant information about GeneChip analysis of M. tuberculosis in China. METHODS To compare the performance of GeneChip analysis in the diagnosis of drug-resistant M. tuberculosis with traditional drug susceptibility testing (DST), 1,747 sputum specimens from 2014 to 2016 in Lianyungang of China were retrospectively analyzed. RESULTS GeneChip analysis showed that the gene mutation site of M. tuberculosis to RFP resistance was 46.37% in rpoB 531 (TCG→TTG), and INH resistance was 69.89% in katG 315 (AGC→ACC). There was not significant different between GeneChip analysis and DST in detecting the resistance of M. tuberculosis to RPF or INH. CONCLUSIONS GeneChip analysis could be regarded as a rapid and recommended method for early screening and identifying the drug resistance of M. tuberculosis.
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Tang TT, Lv LL, Wang B, Cao JY, Feng Y, Li ZL, Wu M, Wang FM, Wen Y, Zhou LT, Ni HF, Chen PS, Gu N, Crowley SD, Liu BC. Employing Macrophage-Derived Microvesicle for Kidney-Targeted Delivery of Dexamethasone: An Efficient Therapeutic Strategy against Renal Inflammation and Fibrosis. Am J Cancer Res 2019; 9:4740-4755. [PMID: 31367254 PMCID: PMC6643445 DOI: 10.7150/thno.33520] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [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: 01/26/2019] [Accepted: 05/15/2019] [Indexed: 01/13/2023] Open
Abstract
Although glucocorticoids are the mainstays in the treatment of renal diseases for decades, the dose dependent side effects have largely restricted their clinical use. Microvesicles (MVs) are small lipid-based membrane-bound particles generated by virtually all cells. Here we show that RAW 264.7 macrophage cell-derived MVs can be used as vectors to deliver dexamethasone (named as MV-DEX) targeting the inflamed kidney efficiently. Methods: RAW macrophages were incubated with dexamethasone and then MV-DEX was isolated from the supernatants by centrifugation method. Nanoparticle tracking analysis, transmission electron microscopy, western blot and high-performance liquid chromatography were used to analyze the properties of MV-DEX. The LC-MS/MS was applied to investigate the protein compositions of MV-DEX. Based on the murine models of LPS- or Adriamycin (ADR)-induced nephropathy or in-vitro culture of glomerular endothelial cells, the inflammation-targeting characteristics and the therapeutic efficacy of MV-DEX was examined. Finally, we assessed the side effects of chronic glucocorticoid therapy in MV-DEX-treated mice. Results: Proteomic analysis revealed distinct integrin expression patterns on the MV-DEX surface, in which the integrin αLβ2 (LFA-1) and α4β1 (VAL-4) enabled them to adhere to the inflamed kidney. Compared to free DEX treatment, equimolar doses of MV-DEX significantly attenuated renal injury with an enhanced therapeutic efficacy against renal inflammation and fibrosis in murine models of LPS- or ADR-induced nephropathy. In vitro, MV-DEX with about one-fifth of the doses of free DEX achieved significant anti-inflammatory efficacy by inhibiting NF-κB activity. Mechanistically, MV-DEX could package and deliver glucocorticoid receptors to renal cells, thereby, increasing cellular levels of the receptor and improving cell sensitivity to glucocorticoids. Notably, delivering DEX in MVs significantly reduced the side effects of chronic glucocorticoid therapy (e.g., hyperglycemia, suppression of HPA axis). Conclusion: In summary, macrophage-derived MVs efficiently deliver DEX into the inflamed kidney and exhibit a superior capacity to suppress renal inflammation and fibrosis without apparent glucocorticoid adverse effects. Our findings demonstrate the effectiveness and security of a novel drug delivery strategy with promising clinical applications.
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Affiliation(s)
- Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China,✉ Corresponding authors: Bi-Cheng Liu () or Lin-Li Lv ()
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Jing-Yuan Cao
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ye Feng
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Min Wu
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Feng-Mei Wang
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Yi Wen
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Hai-Feng Ni
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ping-Sheng Chen
- Institute of Nephrology, Zhong Da Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Steven D. Crowley
- Division of Nephrology, Department of Medicine, Duke University and Durham VA Medical Centers, Durham, North Carolina, United States
| | - Bi-Cheng Liu
- ✉ Corresponding authors: Bi-Cheng Liu () or Lin-Li Lv ()
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Zhou LT, Lv LL, Qiu S, Yin Q, Li ZL, Tang TT, Ni LH, Feng Y, Wang B, Ma KL, Liu BC. Bioinformatics-based discovery of the urinary BBOX1 mRNA as a potential biomarker of diabetic kidney disease. J Transl Med 2019; 17:59. [PMID: 30819181 PMCID: PMC6394064 DOI: 10.1186/s12967-019-1818-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 02/21/2019] [Indexed: 01/15/2023] Open
Abstract
Background Diabetic kidney disease (DKD) is the leading cause of end-stage kidney disease (ESKD) in the world. Emerging evidence has shown that urinary mRNAs may serve as early diagnostic and prognostic biomarkers of DKD. In this article, we aimed to first establish a novel bioinformatics-based methodology for analyzing the “urinary kidney-specific mRNAs” and verify their potential clinical utility in DKD. Methods To select candidate mRNAs, a total of 127 Affymetrix microarray datasets of diabetic kidney tissues and other tissues from humans were compiled and analyzed using an integrative bioinformatics approach. Then, the urinary expression of candidate mRNAs in stage 1 study (n = 82) was verified, and the one with best performance moved on to stage 2 study (n = 80) for validation. To avoid potential detection bias, a one-step Taqman PCR assay was developed for quantification of the interested mRNA in stage 2 study. Lastly, the in situ expression of the selected mRNA was further confirmed using fluorescent in situ hybridization (FISH) assay and bioinformatics analysis. Results Our bioinformatics analysis identified sixteen mRNAs as candidates, of which urinary BBOX1 (uBBOX1) levels were significantly upregulated in the urine of patients with DKD. The expression of uBBOX1 was also increased in normoalbuminuric diabetes subjects, while remained unchanged in patients with urinary tract infection or bladder cancer. Besides, uBBOX1 levels correlated with glycemic control, albuminuria and urinary tubular injury marker levels. Similar results were obtained in stage 2 study. FISH assay further demonstrated that BBOX1 mRNA was predominantly located in renal tubular epithelial cells, while its expression in podocytes and urothelium was weak. Further bioinformatics analysis also suggested that tubular BBOX1 mRNA expression was quite stable in various types of kidney diseases. Conclusions Our study provided a novel methodology to identify and analyze urinary kidney-specific mRNAs. uBBOX1 might serve as a promising biomarker of DKD. The performance of the selected urinary mRNAs in monitoring disease progression needs further validation. Electronic supplementary material The online version of this article (10.1186/s12967-019-1818-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China.,Wuxi People's Hospital Affiliated To Nanjing Medical University, Wuxi, Jiangsu, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Shen Qiu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Qing Yin
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Li-Hua Ni
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Ye Feng
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Kun-Ling Ma
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, No. 87 Dingjiaqiao Rd, Nanjing, Jiangsu, China.
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Abstract
Renal fibrosis is the common pathological pathway of progressive CKD. The commonly used biomarkers in clinical practice are not optimal to detect injury or predict prognosis. Therefore, it is crucial to develop novel biomarkers to allow prompt intervention. Urine serves as a valuable resource of biomarker discovery for kidney diseases. Owing to the rapid development of omics platforms and bioinformatics, research on novel urinary biomarkers for renal fibrosis has proliferated in recent years. In this chapter, we discuss the current status and provide basic knowledge in this field. We present novel promising biomarkers including tubular injury markers, proteins related to activated inflammation/fibrosis pathways, CKD273, transcriptomic biomarkers, as well as metabolomic biomarkers. Furthermore, considering the complex nature of the pathogenesis of renal fibrosis, we also highlight the combination of biomarkers to further improve the diagnostic and prognostic performance.
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Affiliation(s)
- Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, DingJiaQiao Road, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, DingJiaQiao Road, Nanjing, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, DingJiaQiao Road, Nanjing, China.
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Han YC, Tu Y, Zhou LT, Pan MM, Wang B, Liu H, Tang RN, Liu BC. Peridialysis BP levels and risk of all-cause mortality: a dose-response meta-analysis. J Hum Hypertens 2018; 33:41-49. [PMID: 30209306 DOI: 10.1038/s41371-018-0103-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 11/09/2022]
Abstract
Blood pressure (BP) management posed great challenge in hemodialysis (HD) population. We conducted a dose-response meta-analysis to investigate the quantitative features and the potential threshold effect of the associations between peridialysis BP levels and all-cause mortality risk in HD population. We searched all of the prospective cohort studies (published before 18 March 2017) on the associations between peridialysis BP levels and all-cause mortality risk. A total of 229,688 prevalent HD patients from 8 studies were included. Significant non-linear associations were noted between peridialytic BP levels and all-cause mortality risk. Significant increased risk of death was found in four peridialysis BP ranges, that is, low levels of predialysis SBP (<135 mmHg, 140 mmHg as the reference), two extremes of predialysis DBP (<55 and >95 mmHg, 90 mmHg as the reference), high levels of postdialysis SBP (>180 mmHg, 130 mmHg as the reference), and low levels of postdialysis DBP (<75 mmHg, 80 mmHg as the reference). Threshold effect was determined in the associations between peridialysis BP and all-cause mortality risk, and potential BP thresholds were identified (149 mmHg for predialysis SBP, 79 mmHg for predialysis DBP, 147 mmHg for postdialysis SBP and 76 mmHg for postdialysis DBP). In conclusion, the proposed peridialysis BP ranges and the threshold values could help clinicians identify high risk HD patients. The interpretation of the peridialysis BP mortality associations should be based on the features of HD population (especially the cardiovascular conditions, volume status and the dialysis vintage).
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Affiliation(s)
- Yu-Chen Han
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Yan Tu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Le-Ting Zhou
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Ming-Ming Pan
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Hong Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Ri-Ning Tang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China.
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12
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Feng Y, Lv LL, Wu WJ, Li ZL, Chen J, Ni HF, Zhou LT, Tang TT, Wang FM, Wang B, Chen PS, Crowley SD, Liu BC. Urinary Exosomes and Exosomal CCL2 mRNA as Biomarkers of Active Histologic Injury in IgA Nephropathy. Am J Pathol 2018; 188:2542-2552. [PMID: 30142333 DOI: 10.1016/j.ajpath.2018.07.017] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/03/2018] [Accepted: 07/24/2018] [Indexed: 01/21/2023]
Abstract
IgA nephropathy (IgAN) features variable renal pathology and a heterogeneous clinical course. Our aim was to search noninvasive biomarkers from urinary exosomes for IgAN patients; membrane nephropathy and minimal change disease were included as other glomerulopathy controls. Transmission electron microscopy and nanoparticle tracking analysis confirmed the size and morphology characteristic of urinary exosomes. Exosome markers (Alix and CD63) as well as renal cell markers [aquaporin 2 (AQP2) and nephrin] were detected, which indicate the renal origin of urinary exosomes. Exosome excretion was increased markedly in IgAN patients compared with controls and correlated with levels of proteinuria and tubular injury. More important, urinary exosome excretion correlated with greater histologic activity (mesangial hypercellularity, crescents, and endocapillary hypercellularity). Profiling of the inflammation-related mRNA revealed that exosomal chemokine (C-C motif) ligand 2 (CCL2) was up-regulated in IgAN patients. In a validation study, CCL2 was exclusively highly expressed in IgAN patients compared with healthy controls as well as minimal change disease and membrane nephropathy patients. Also, a correlation between exosomal CCL2 and estimated glomerular filtration rate levels was found in IgAN. Exosomal CCL2 was correlated with tubulointerstitial inflammation and C3 deposition. High CCL2 levels at the time of renal biopsy were associated with subsequent deterioration in renal function. Thus, urinary exosomes and exosomal CCL2 mRNA are promising biomarkers reflecting active renal histologic injury and renal function deterioration in IgAN.
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Affiliation(s)
- Ye Feng
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China.
| | - Wei-Jun Wu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Jun Chen
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Hai-Feng Ni
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Le-Ting Zhou
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Tao-Tao Tang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Feng-Mei Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Ping-Sheng Chen
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Steven D Crowley
- Division of Nephrology, Department of Medicine, Duke University, Durham VA Medical Centers, Durham, North Carolina
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China.
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Qiu S, Zhou LT, Lv LL, Ma KL, Tang RN, Liu BC. FP164URINARY KIDNEY-SPECIFIC MRNAS AS POTENTIAL BIOMARKERS OF GLOMERULONEPHRITIS: BIOINFORMATICS-BASED IDENTIFICATION AND PCR ARRAY FABRICATION. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp164] [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: 11/12/2022] Open
Affiliation(s)
- Shen Qiu
- Institute of Nephrology, Southeast University, Nanjing, China
| | - Le-Ting Zhou
- Institute of Nephrology, Southeast University, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Southeast University, Nanjing, China
| | - Kun-Ling Ma
- Institute of Nephrology, Southeast University, Nanjing, China
| | - Ri-Ning Tang
- Institute of Nephrology, Southeast University, Nanjing, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Southeast University, Nanjing, China
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Zhou LT, Lv LL, Qiu S, Liu H, Tang RN, Ma KL, Liu BC. FO064INTEGRATIVE BIOINFORMATICS ANALYSIS PROVIDES INSIGHT INTO THE MOLECULAR MECHANISMS OF CHRONIC KIDNEY DISEASE. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fo064] [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)
- Le-Ting Zhou
- Nephrology, Institute of Nephrology, Southeast University, Nanjing, China
| | - Lin-Li Lv
- Nephrology, Southeast University School of Medicine, Nanjing, China
| | - Shen Qiu
- Nephrology, Southeast University School of Medicine, Nanjing, China
| | - Hong Liu
- Nephrology, Southeast University School of Medicine, Nanjing, China
| | - Ri-Ning Tang
- Nephrology, Southeast University School of Medicine, Nanjing, China
| | - Kun-Ling Ma
- Nephrology, Southeast University School of Medicine, Nanjing, China
| | - Bi-Cheng Liu
- Nephrology, Southeast University School of Medicine, Nanjing, China
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Zhou LT, Qiu S, Lv LL, Li ZL, Liu H, Tang RN, Ma KL, Liu BC. Integrative Bioinformatics Analysis Provides Insight into the Molecular Mechanisms of Chronic Kidney Disease. Kidney Blood Press Res 2018; 43:568-581. [PMID: 29642064 DOI: 10.1159/000488830] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 03/28/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Chronic kidney disease (CKD) is a worldwide public health problem. Regardless of the underlying primary disease, CKD tends to progress to end-stage kidney disease, resulting in unsatisfactory and costly treatment. Its common pathogenesis, however, remains unclear. The aim of this study was to provide an unbiased catalog of common gene-expression changes of CKD and reveal the underlying molecular mechanism using an integrative bioinformatics approach. METHODS We systematically collected over 250 Affymetrix microarray datasets from the glomerular and tubulointerstitial compartments of healthy renal tissues and those with various types of established CKD (diabetic kidney disease, hypertensive nephropathy, and glomerular nephropathy). Then, using stringent bioinformatics analysis, shared differentially expressed genes (DEGs) of CKD were obtained. These shared DEGs were further analyzed by the gene ontology (GO) and pathway enrichment analysis. Finally, the protein-protein interaction networks(PINs) were constructed to further refine our results. RESULTS Our analysis identified 176 and 50 shared DEGs in diseased glomeruli and tubules, respectively, including many transcripts that have not been previously reported to be involved in kidney disease. Enrichment analysis also showed that the glomerular and tubulointerstitial compartments underwent a wide range of unique pathological changes during chronic injury. As revealed by the GO enrichment analysis, shared DEGs in glomeruli were significantly enriched in exosomes. By constructing PINs, we identified several hub genes (e.g. OAS1, JUN, and FOS) and clusters that might play key roles in regulating the development of CKD. CONCLUSION Our study not only further reveals the unifying molecular mechanism of CKD pathogenesis but also provides a valuable resource of potential biomarkers and therapeutic targets.
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Lv LL, Feng Y, Wen Y, Wu WJ, Ni HF, Li ZL, Zhou LT, Wang B, Zhang JD, Crowley SD, Liu BC. Exosomal CCL2 from Tubular Epithelial Cells Is Critical for Albumin-Induced Tubulointerstitial Inflammation. J Am Soc Nephrol 2018; 29:919-935. [PMID: 29295871 DOI: 10.1681/asn.2017050523] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [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: 05/15/2017] [Accepted: 11/14/2017] [Indexed: 11/03/2022] Open
Abstract
Albuminuria is a key instigator of tubulointerstitial inflammation associated with CKD, but the mechanism through which filtered albumin propagates renal injury remains unclear. In this study, we explored the role in this process of exosome mRNA released from tubular epithelial cells (TECs). Compared with control mice, acute and chronic kidney injury models had more exosomes containing inflammatory cytokine mRNA, particularly the chemokine CCL2, in kidneys and urine. In vitro stimulation of TECs with BSA recapitulated this finding. Notably, the internalization of purified TEC exosomes by cultured macrophages increased if TECs were exposed to BSA. Macrophage internalization of exosomes from BSA-treated TECs led to an enhanced inflammatory response and macrophage migration, but CCL2 silencing in TECs prevented these effects. Using a GFP-CCL2 fusion mRNA construct, we observed direct transfer of CCL2 mRNA from TEC exosomes to macrophages. Mice subjected to tail vein injection of purified BSA-treated TEC exosomes developed tubular injury with renal inflammatory cell infiltration. However, injection of exosomes from BSA-treated CCL2-deficient TECs induced less severe kidney inflammation. Finally, in patients with IgA nephropathy, the increase of proteinuria correlated with augmented urinary excretion of exosomes with exaggerated expression of CCL2 mRNA. Moreover, the level of CCL2 mRNA in urinary exosomes correlated closely with levels of renal interstitial macrophage infiltration in these patients. Our studies demonstrate that the increasing release of exosomes that transfer CCL2 mRNA from TECs to macrophages constitutes a critical mechanism of albumin-induced tubulointerstitial inflammation.
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Affiliation(s)
- Lin-Li Lv
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Ye Feng
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Yi Wen
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Wei-Jun Wu
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Hai-Feng Ni
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Le-Ting Zhou
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Jian-Dong Zhang
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
| | - Steven D Crowley
- Division of Nephrology, Department of Medicine, Duke University and Durham Veterans Affairs Medical Centers, Durham, North Carolina
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospitial, Southeast University School of Medicine, Nanjing, China; and
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Zhou LT, Lv LL, Yin Q, Tang TT, Wen Y, Liu BC. SO017BIOINFORMATICS-BASED IDENTIFICATION OF URINARY KIDNEY-SPECIFIC MRNAS AS POTENTIAL BIOMARKERS OF DIABETIC KIDNEY DISEASE. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx102.so017] [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: 11/12/2022] Open
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Zhou LT, Cao YH, Lv LL, Ma KL, Chen PS, Ni HF, Lei XD, Liu BC. Feature selection and classification of urinary mRNA microarray data by iterative random forest to diagnose renal fibrosis: a two-stage study. Sci Rep 2017; 7:39832. [PMID: 28045061 PMCID: PMC5206620 DOI: 10.1038/srep39832] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 07/22/2016] [Accepted: 11/29/2016] [Indexed: 11/25/2022] Open
Abstract
Renal fibrosis is a common pathological pathway of progressive chronic kidney disease (CKD). However, kidney function parameters are suboptimal for detecting early fibrosis, and therefore, novel biomarkers are urgently needed. We designed a 2-stage study and constructed a targeted microarray to detect urinary mRNAs of CKD patients with renal biopsy and healthy participants. We analysed the microarray data by an iterative random forest method to select candidate biomarkers and produce a more accurate classifier of renal fibrosis. Seventy-six and 49 participants were enrolled into stage I and stage II studies, respectively. By the iterative random forest method, we identified a four-mRNA signature in urinary sediment, including TGFβ1, MMP9, TIMP2, and vimentin, as important features of tubulointerstitial fibrosis (TIF). All four mRNAs significantly correlated with TIF scores and discriminated TIF with high sensitivity, which was further validated in the stage-II study. The combined classifiers showed excellent sensitivity and outperformed serum creatinine and estimated glomerular filtration rate measurements in diagnosing TIF. Another four mRNAs significantly correlated with glomerulosclerosis. These findings showed that urinary mRNAs can serve as sensitive biomarkers of renal fibrosis, and the random forest classifier containing urinary mRNAs showed favourable performance in diagnosing early renal fibrosis.
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Affiliation(s)
- Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yu-Han Cao
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Kun-Ling Ma
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Ping-Sheng Chen
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Hai-Feng Ni
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | | | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
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Zhou LT, Lv LL, Pan MM, Cao YH, Liu H, Feng Y, Ni HF, Liu BC. Are Urinary Tubular Injury Markers Useful in Chronic Kidney Disease? A Systematic Review and Meta Analysis. PLoS One 2016; 11:e0167334. [PMID: 27907168 PMCID: PMC5131971 DOI: 10.1371/journal.pone.0167334] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 08/20/2016] [Accepted: 11/11/2016] [Indexed: 12/20/2022] Open
Abstract
Background Adverse outcome of chronic kidney disease, such as end stage renal disease, is a significant burden on personal health and healthcare costs. Urinary tubular injury markers, such as NGAL, KIM-1 and NAG, could provide useful prognostic value for the early identification of high-risk patients. However, discrepancies between recent large prospective studies have resulted in controversy regarding the potential clinical value of these markers. Therefore, we conducted the first meta-analysis to provide a more persuasive argument to this debate. Methods In the current meta-analysis, based on ten prospective studies involving 29366 participants, we evaluated the role of urinary tubular injury markers (NGAL, KIM-1 and NAG) in predicting clinical outcomes including CKD stage 3, end stage renal disease and mortality. The prognostic values of these biomarkers were estimated using relative risks and 95% confidence interval in adjusted models. All risk estimates were normalized to those of 1 standard deviation increase in log-scale concentrations to minimize heterogeneity. Fixed-effects models were adopted to combine risk estimates. The quality of the research and between-study heterogeneity were evaluated. The level of research evidence was identified according to the GRADE profiler. Results uNGAL was identified as an independent risk predictor of ESRD (pooled adjusted relative risk: 1.40[1.21 to 1.61], p<0.001) and of overall mortality (pooled adjusted relative risk: 1.10[1.03 to 1.18], p = 0.001) in patients with chronic kidney disease. A borderline significance of uKIM-1 in predicting CKD stage 3 independently in the community-based population was observed (pooled adjusted relative risk: 1.13[1.00 to 1.27], p = 0.057). Only the prognostic value of uNGAL for ESRD was supported by a grade B level of evidence. Conclusion The concentration of uNGAL can be used in practice as an independent predictor of end stage renal disease among patients with chronic kidney disease, but it may be not useful in predicting disease progression to CKD stage 3 among community-based population.
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Affiliation(s)
- Le-Ting Zhou
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Ming-Ming Pan
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yu-Han Cao
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Hong Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Ye Feng
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Hai-Feng Ni
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
- * E-mail:
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Shi YH, Zhou LT, Zhang CX, Li YZ, Zhang JZ, Zhou HM, Li YG, Liu T, Zhang LL, Sun LN, Chen Z. Effects of carbomer eye drops in combination with orthokeratology lens in treating adolescent myopia. J BIOL REG HOMEOS AG 2016; 30:1029-1033. [PMID: 28078849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To investigate the effects of carbomer eye drops (CED) during long-time wearing of overnight orthokeratology lens of adolescents with myopia, 260 teenagers with myopia treated in the Henan Provincial Peoples Hospital from June 2012 to August 2014 and followed-up for more than 2 years were enrolled. All the patients underwent regular fitting of orthokeratology lens. They were divided into a CED (Vidisic) group (130 cases, 260 eyes treated with CED) and rewetting drops (RD) (Baushe and Lomb) group (130 cases, 260 eyes treated with RD). The effects in the two groups were observed. The incidence of corneal epithelial defects one day, one week and one month after treatment of the CED group was lower than that of the RD group, and the difference was statistically significant (P less than 0.05); the tear break up time (TBUT) of the CED group was higher than that of the RD group at different time points, and the difference had statistical significance (P less than 0.05); the difference of the value of Schirmer I test between the two groups had no statistical significance (P>0.05). It is concluded that carbomer eye drops can stabilize tear film and protect and repair corneal epithelium during the wearing of orthokeratology lens.
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Affiliation(s)
- Y H Shi
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - L T Zhou
- Teaching and Research Section of Optometry, Department of Medical Technology, Zhengzhou Railway Vocational and Technical College, Zhengzhou, China
| | - C X Zhang
- Department of Ophthalmology, Kaifeng Central Hospital, Kaifeng, China
| | - Y Z Li
- Luoyang Boai Ophthalmology Hospital, Luoyang, China
| | - J Z Zhang
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - H M Zhou
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - Y G Li
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - T Liu
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - L L Zhang
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - L N Sun
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
| | - Z Chen
- Department of Ophthalmology, Henan Provincial Peoples Hospital, Zhengzhou, China
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Abstract
Cancer is a complex disease with interactions between normal and neoplastic cells. Since current therapies for cancer largely rely on drugs or radiation that kill dividing cells or block cell division, these treatments may have severe side effects on normal proliferating cells in patients with cancer. Recently, immunotherapeutic approaches for cancer therapy, by which monoclonal antibodies (Mabs) target tumor specific antigens, have shown great potential. Glycoprotein non-metastatic melanoma protein B(Gpnmb)/Osteoactivin (OA) is a transmembrane glycoprotein highly expressed in various types of cancer. Gpnmb/OA promotes the migration, invasion and metastasis of tumor cells. CR 011-vcMMAE is a Mab-drug conjugate being developed for the treatment of Gpnmb/OA-expressing cancers. Gpnmb/OA represents an attractive target in cancer immunotherapy and CR011-vcMMAE holds promise as a reagent in targeted therapy for Gpnmb/OA-expressing malignancies.
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Affiliation(s)
- L T Zhou
- Second Xiangya Hospital, Hunan, People's Republic of China
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