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Li M, Hu X, Li Y, Chen G, Ding CG, Tian X, Tian P, Xiang H, Pan X, Ding X, Xue W, Zheng J, Ding C. Development and validation of a novel nomogram model for predicting delayed graft function in deceased donor kidney transplantation based on pre-transplant biopsies. BMC Nephrol 2024; 25:138. [PMID: 38641807 PMCID: PMC11031976 DOI: 10.1186/s12882-024-03557-3] [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: 06/29/2023] [Accepted: 03/21/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Delayed graft function (DGF) is an important complication after kidney transplantation surgery. The present study aimed to develop and validate a nomogram for preoperative prediction of DGF on the basis of clinical and histological risk factors. METHODS The prediction model was constructed in a development cohort comprising 492 kidney transplant recipients from May 2018 to December 2019. Data regarding donor and recipient characteristics, pre-transplantation biopsy results, and machine perfusion parameters were collected, and univariate analysis was performed. The least absolute shrinkage and selection operator regression model was used for variable selection. The prediction model was developed by multivariate logistic regression analysis and presented as a nomogram. An external validation cohort comprising 105 transplantation cases from January 2020 to April 2020 was included in the analysis. RESULTS 266 donors were included in the development cohort, 458 kidneys (93.1%) were preserved by hypothermic machine perfusion (HMP), 96 (19.51%) of 492 recipients developed DGF. Twenty-eight variables measured before transplantation surgery were included in the LASSO regression model. The nomogram consisted of 12 variables from donor characteristics, pre-transplantation biopsy results and machine perfusion parameters. Internal and external validation showed good discrimination and calibration of the nomogram, with Area Under Curve (AUC) 0.83 (95%CI, 0.78-0.88) and 0.87 (95%CI, 0.80-0.94). Decision curve analysis demonstrated that the nomogram was clinically useful. CONCLUSION A DGF predicting nomogram was developed that incorporated donor characteristics, pre-transplantation biopsy results, and machine perfusion parameters. This nomogram can be conveniently used for preoperative individualized prediction of DGF in kidney transplant recipients.
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Affiliation(s)
- Meihe Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaojun Hu
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Yang Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Guozhen Chen
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Chen-Guang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaohui Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Puxun Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Heli Xiang
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Pan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Wujun Xue
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Jin Zheng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Chenguang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
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Jiao A, Zhang C, Wang X, Sun L, Liu H, Su Y, Lei L, Li W, Ding R, Ding C, Dou M, Tian P, Sun C, Yang X, Zhang L, Zhang B. Single-cell sequencing reveals the evolution of immune molecules across multiple vertebrate species. J Adv Res 2024; 55:73-87. [PMID: 36871615 PMCID: PMC10770119 DOI: 10.1016/j.jare.2023.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 02/11/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
INTRODUCTION Both innate and adaptive immune system undergo evolution from low to high vertebrates. Due to the limitation of conventional approaches in identifying broader spectrum of immune cells and molecules from various vertebrates, it remains unclear how immune molecules evolve among vertebrates. OBJECTIVES Here, we utilized carry out comparative transcriptome analysis in various immune cells across seven vertebrate species. METHODS Single-cell RNA sequencing (scRNA-seq). RESULTS We uncovered both conserved and species-specific profiling of gene expression in innate and adaptive immunity. Macrophages exhibited highly-diversified genes and developed sophisticated molecular signaling networks along with evolution, indicating effective and versatile functions in higher species. In contrast, B cells conservatively evolved with less differentially-expressed genes in analyzed species. Interestingly, T cells represented a dominant immune cell populations in all species and unique T cell populations were identified in zebrafish and pig. We also revealed compensatory TCR cascade components utilized by different species. Inter-species comparison of core gene programs demonstrated mouse species has the highest similarity in immune transcriptomes to human. CONCLUSIONS Therefore, our comparative study reveals gene transcription characteristics across multiple vertebrate species during the evolution of immune system, providing insights for species-specific immunity as well as the translation of animal studies to human physiology and disease.
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Affiliation(s)
- Anjun Jiao
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Cangang Zhang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Xin Wang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Lina Sun
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Haiyan Liu
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Yanhong Su
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Lei Lei
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi 710061, China; Xi'an Key Laboratory of Immune Related Diseases, Xi'an, Shaanxi 710061, China
| | - Wenhua Li
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Renyi Ding
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Chenguang Ding
- The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Meng Dou
- The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Puxun Tian
- The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Chenming Sun
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi 710061, China; Xi'an Key Laboratory of Immune Related Diseases, Xi'an, Shaanxi 710061, China
| | - Xiaofeng Yang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi 710061, China; Xi'an Key Laboratory of Immune Related Diseases, Xi'an, Shaanxi 710061, China.
| | - Lianjun Zhang
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou 215123, China.
| | - Baojun Zhang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Institute of Infection and Immunity, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi 710061, China; Xi'an Key Laboratory of Immune Related Diseases, Xi'an, Shaanxi 710061, China.
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Oyebade AO, Lee S, Sultana H, Arriola K, Duvalsaint E, Nino De Guzman C, Fernandez Marenchino I, Marroquin Pacheco L, Amaro F, Ghedin Ghizzi L, Mu L, Guan H, Almeida KV, Rajo Andrade B, Zhao J, Tian P, Cheng C, Jiang Y, Driver J, Queiroz O, Ferraretto LF, Ogunade IM, Adesogan AT, Vyas D. Effects of direct-fed microbial supplementation on performance and immune parameters of lactating dairy cows. J Dairy Sci 2023; 106:8611-8626. [PMID: 37641244 DOI: 10.3168/jds.2022-22898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 05/29/2023] [Indexed: 08/31/2023]
Abstract
We evaluated the effects of supplementing bacterial direct-fed microbial (DFM) on performance, apparent total-tract digestibility, rumen fermentation, and immune parameters of lactating dairy cows. One hundred fourteen multiparous Holstein cows (41 ± 7 DIM) were used in a randomized complete block design with an experiment comprising 14 d of a covariate (pre-experimental sample and data collection) and 91 d of an experimental period. Cows were blocked based on energy-corrected milk (ECM) yield during the covariate period and the following treatments were randomly assigned within each block: (1) control (CON), corn silage-based total mixed ration without DFM; (2) PRO-A, basal diet top-dressed with a mixture of Lactobacillus animalis and Propionibacterium freudenreichii at 3 × 109 cfu/d; and 3) PRO-B, basal diet top-dressed with a mixture of L. animalis, P. freudenreichii, Bacillus subtilis, and Bacillus licheniformis at 11.8 × 109 cfu/d. Milk yield, dry matter intake (DMI), and body weight were measured daily, while milk samples for component analysis were taken on 2 consecutive days of each week of data collection. Feces, urine, rumen, and blood samples were taken during the covariate period, wk 4, 7, 10, and 13 for estimation of digestibility, N-partitioning, rumen fermentation, plasma nutrient status and immune parameters. Treatments had no effect on DMI and milk yield. Fat-corrected milk (3.5% FCM) and milk fat yield were improved with PRO-B, while milk fat percent and feed efficiency (ECM/DMI) tended to increase with PRO-B compared with PRO-A and CON. Crude fat digestibility was greater with PRO-B compared with CON. Feeding CON and PRO-A resulted in higher total volatile fatty acid concentration relative to PRO-B. Percentage of neutrophils tended to be reduced with PRO-A compared with CON and PRO-B. The mean fluorescence intensity (MFI) of anti-CD44 antibody on granulocytes tended to be higher in PRO-B compared with CON. The MFI of anti-CD62L antibody on CD8+ T cells was lower in PRO-A than PRO-B, with PRO-A also showing a tendency to be lower than CON. This study indicates the potential of DFM to improve fat digestibility with consequential improvement in fat corrected milk yield, feed efficiency and milk fat yield by lactating dairy cows. The study findings also indicate that dietary supplementation with DFM may augment immune parameters or activation of immune cells, including granulocytes and T cells; however, the overall effects on immune parameters are inconclusive.
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Affiliation(s)
- A O Oyebade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - S Lee
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - H Sultana
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - K Arriola
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - E Duvalsaint
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - C Nino De Guzman
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - I Fernandez Marenchino
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Marroquin Pacheco
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - F Amaro
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Ghedin Ghizzi
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Mu
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - H Guan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - K V Almeida
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - B Rajo Andrade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - J Zhao
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - P Tian
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - C Cheng
- College of Agriculture, Communities, and the Environment, Kentucky State University, Frankfort, KY 40601
| | - Y Jiang
- College of Agriculture, Communities, and the Environment, Kentucky State University, Frankfort, KY 40601
| | - J Driver
- MU Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO 65211
| | - O Queiroz
- Chr. Hansen A/S, Animal Health and Nutrition, B⊘ge Allé 10-12, DK-2970 H⊘rsholm, Denmark
| | - L F Ferraretto
- Department of Dairy Science, University of Wisconsin-Madison, Madison, WI 53706
| | - I M Ogunade
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506
| | - A T Adesogan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - D Vyas
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.
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Zhang J, Xue W, Tian P, Zheng J, Ding C, Li Y, Wang Y, Ding X, Lv Y. Effect of ureteral stricture in transplant kidney and choice of treatment on long-term graft survival. Int Urol Nephrol 2023; 55:2193-2203. [PMID: 37308613 PMCID: PMC10406706 DOI: 10.1007/s11255-023-03669-z] [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: 04/10/2023] [Accepted: 06/07/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND To explore the risk factors of ureteral stricture in transplant kidney and the clinical effects of different treatment methods. METHODS The 62 patients with transplant kidney ureteral stenosis as the experimental group, and another group of recipients from the same donor as the control group (n = 59 cases). The risk factors for ureteral stricture and the survival rate of transplant kidney were analyzed and compared. The 62 patients were divided into open operation, luminal operation, and magnetic compression anastomosis (MCA) operation group. The effect of the operation and the survival rate of transplant kidney among the three groups were compared. RESULTS In our study, we found that the above differences were statistically significant in clinical data such as gender, multiple donor renal arteries, history of infection, and delayed graft function (DGF) between the two groups (P < 0.05). Urinary tract infection and DGF history were the independent risk factors for the development of ureteral stricture. The open operation had the best treatment effect and the survival rate of the transplant kidney, followed by the MCA, the stricture recurrence rate in the luminal operation was the highest. CONCLUSION The ureteral stricture has a negative correlation with the long-term survival rate of the transplant kidney, the curative rate and long-term effect of open surgery are the best, stricture recurrence rate of luminal surgery is high, and it may require multiple operations in the future, the MCA is a new breakthrough and innovation in the treatment of ureteral stricture.
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Affiliation(s)
- Jiangwei Zhang
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Wujun Xue
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Chenguang Ding
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yang Li
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Ying Wang
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Yi Lv
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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Ding C, Wang B, Zheng J, Zhang M, Li Y, Shen HH, Guo Y, Zheng B, Tian P, Ding X, Xue W. Neutrophil Membrane-Inspired Nanorobots Act as Antioxidants Ameliorate Ischemia Reperfusion-Induced Acute Kidney Injury. ACS Appl Mater Interfaces 2023; 15:40292-40303. [PMID: 37603686 DOI: 10.1021/acsami.3c08573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Ischemia/reperfusion (I/R) injury causes excessive oxidative events and initiates destructive inflammatory responses, and it is an important promoter to the pathology of various pathema states. Ferroptosis is an iron-dependent type of nonapoptotic cell death accompanied by the accumulation of membrane lipid peroxide and consumption of polyunsaturated fatty acid, and it plays a key role in I/R injury diseases. Moreover, the excessive production of inflammatory cytokines contributes to the development of acute kidney injury. Here, we reported neutrophil membrane-coated copper-based nanoparticles (N-Cu5.4O@DFO NPs) for I/R kidney injury treatment. The highly biocompatible and stable N-Cu5.4O@DFO NPs showed excellent antioxidant and iron ion scavenging abilities in vitro. Our finding showed that the N-Cu5.4O@DFO NPs strategy could significantly accumulate in the inflammatory kidney, reduce oxidative damage events and inflammatory response, and finally achieve synergistic therapy against renal I/R injury. This work promotes the development of nanoantioxidant agents with multiple antioxidant properties for the therapy of other I/R injury diseases.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
- Organ Procurement and Allocation Organization, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Bo Wang
- Department of Material Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
| | - Mingzhen Zhang
- School of Basic Medical Sciences, Xi'an Key Laboratory of Immune Related Diseases, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
| | - Hsin-Hui Shen
- Department of Material Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yingcong Guo
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Bingxuan Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an 710061, China
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Tian P, Huang X, Zhu K, Jin Z, Li Y, Zheng B, Zhao X, Feng Y, Feng Q, Li D, Wang J, Xu C. Naringenin Impedes the Differentiation of Mouse Hematopoietic Stem Cells Derived from Bone Marrow into Mature Dendritic Cells, thereby Prolonging Allograft Survival. FRONT BIOSCI-LANDMRK 2023; 28:91. [PMID: 37258474 DOI: 10.31083/j.fbl2805091] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/14/2023] [Accepted: 03/23/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND The use of immature dendritic cells (imDCs) to induce donor-specific immunotolerance following in vivo stimulation is limited by their low rate of induction and their tendency to undergo maturation. We derived imDCs from bone marrow hematopoietic stem cells (HSCs-imDCs). We then tested the ability of naringenin (Nar) to impede the maturation of HSCs-imDCs for inducing transplantation immune tolerance. METHODS HSCs derived from bone marrow were collected and induced to differentiate into imDCs by treating with Nar (Nar-HSCs-imDCs). Flow cytometry was used to evaluate DC surface markers, apoptosis, and endocytic ability. The ability of DCs to influence the in vitro proliferation of T cells and of regulatory T cells (Tregs) was analyzed by mixed lymphocyte reaction assays. Enzyme-linked immunoassays were used to quantify cytokine levels in supernatants from co-cultured DCs and Tregs, as well as in the serum of experimental animals. The level of immunotolerance induced by Nar-HSCs-imDCs was evaluated by skin grafting in recipient Balb/c mice, while the Kaplan-Meier method was used to statistically evaluate graft survival. RESULTS Compared with HSC-imDCs, Nar-HSCs-imDCs showed higher expression of cluster of differentiation 11c (CD11c), but lower expression levels of CD80, CD86, and major histocompatibility complex class II. Nar-HSCs-imDCs also showed stronger inhibition of T cells and higher Treg cell proliferation. Interleukin 2 (IL-2) and interferon gamma levels were downregulated in Nar-HSCs-imDCs, whereas IL-4, IL-10, and transforming growth factor beta levels were upregulated. The rate of apoptosis and endocytic capacity of Nar-HSCs-DCs increased significantly after treatment with lipopolysaccharide. HSCs-imDCs or Nar-HSCs-imDCs were injected into Balb/c mice via the tail vein 7 days before skin grafting. Significantly reduced donor-specific CD4+ T cells and induced proliferation of CD4+CD25+FoxP3+ Treg cells were observed in the spleen of mice from the Nar-HSCs-imDCs group, especially at a dose of 106 Nar-HSCs-imDCs. The latter group also showed significantly prolonged survival of skin grafts. CONCLUSIONS Nar-HSCs-imDCs markedly improved the acceptance of organ allografts, offering a potentially new strategy for inducing immune tolerance in transplantation.
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Affiliation(s)
- Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Xiaoyan Huang
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Kun Zhu
- Department of Pathology, The First Affiliated Hospital of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Zhankui Jin
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Yan Li
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Bingxuan Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Xiangrong Zhao
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Yangmeng Feng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Qing Feng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Dongliang Li
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Jiaojiao Wang
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Cuixiang Xu
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
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Zhang J, Xue W, Tian P, Yan H, Zheng J, Li X, Wang Y, Ding X, Lyu Y. Clinical effect of magnetic compression anastomosis on ureterostenosis after kidney transplantation. Chin Med J (Engl) 2023; 136:1006-1008. [PMID: 37017563 PMCID: PMC10278697 DOI: 10.1097/cm9.0000000000002325] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Indexed: 04/06/2023] Open
Affiliation(s)
- Jiangwei Zhang
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Wujun Xue
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Hang Yan
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Xiao Li
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Ying Wang
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
| | - Yi Lyu
- Department of Hepatobiliary Surgery of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shannxi 710061, China
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Guo Y, Zheng B, Tian P, Zheng J, Li Y, Ding X, Xue W, Ding C. HLA class II antibody activation of endothelial cells induces M2 macrophage differentiation in peripheral blood. Clin Exp Nephrol 2023; 27:309-320. [PMID: 36611129 DOI: 10.1007/s10157-022-02307-9] [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: 04/01/2022] [Accepted: 11/30/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Donor-specific human leukocyte antigen (HLA) class II antibodies (HLA-II Abs) combined with allogeneic endothelial cells (ECs) mediate high-risk rejection in kidney transplant patients. Macrophage accumulation is a significant histological feature of antibody-mediated rejection (AMR) in kidney transplant patients. Here, we further investigated the effect of HLA-II Abs on macrophage phenotypes to provide theoretical basis for clinical treatment of AMR. METHODS We prepared an experimental model containing HLA-II Ab-stimulated microvascular ECs and peripheral blood mononuclear cells (PBMCs) co-culture and explored the potential relationship of HLA-II Ab, ECs activation, and macrophage differentiation. Immune phenotype of macrophage subsets was analyzed and quantified by flow cytometry. HLA-II Ab activation of ECs induces M2 macrophage differentiation signal pathways which were investigated by qPCR and western blotting. RESULTS The stimulation of ECs by F(ab')2 fragment of HLA-II Abs led to phosphorylation of PI3K, Akt, and mTOR, which mediated IL-10, ICAM-1, VCAM-1 secretion. The enhanced ICAM-1 and IL-10 promoted the migration of PBMCs and their differentiation into CD68+ and CD163+ (M2-type) macrophages, respectively, but not CD86+ macrophages. CONCLUSION These findings revealed the PI3K/Akt/mTOR signal pathways activated by HLA-II Abs in ECs and the immune regulation ability of HLA-II Abs to induce PBMC differentiation.
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Affiliation(s)
- Yingcong Guo
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
| | - Bingxuan Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, China.
- Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, China.
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Zhu J, Carr F, Tian P, McLeod M, MacFarlane M, De Coutere S, Sun M, Peltekian K. A102 INTERDISCIPLINARY TELEHEALTH REFERRAL PATHWAY AND CONSULTATIONS TO IMPROVE OUTCOMES AMONG CANADIAN OLDER ADULTS WITH LIVER CIRRHOSIS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991312 DOI: 10.1093/jcag/gwac036.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Telehealth and telemedicine have become indispensable healthcare delivery tools during the COVID-19 pandemic. Older individuals with cirrhosis have complex medical needs that are currently unmet due to the growing disease burden and decreased access to care. Delivering timely specialist care virtually to older adults with cirrhosis will likely be beneficial and acceptable to such patients; however, this has not yet been prospectively evaluated. Purpose The primary goal is to pilot the delivery of dual specialist care from a hepatologist and geriatrician, delivered virtually, for older adults living with liver cirrhosis who are at high risk of geriatric syndromes (age >/= 65 with frailty, undifferentiated cognitive impairment from dementia or hepatic encephalopathy, recurrent falls, risk factors for polypharmacy and moderate to severe malnutrition). Care is delivered using a dedicated hepatology-geriatric referral pathway. Primary objectives include evaluating the impact of this approach on emergency care and inpatient utilization, along with patient attitude and satisfaction to the virtual interdisciplinary care delivery model. Method This pilot quality improvement study was conducted in Halifax, Nova Scotia. Ethics approval was obtained from the Nova Scotia Health Research Ethics Board and the University of Alberta Research Ethics Board. Fifty to one hundred participants (age 65 years or older with at least one geriatric syndrome; diagnosis of liver cirrhosis by liver elastography or liver biopsy, or Fibrosis-4 Index for Liver Fibrosis greater than three and having radiological features of cirrhosis and/or portal hypertension) were recruited between September 2022 to December 2022 at the time of their hepatology consultation. After consent and screening, each patient underwent a telehealth appointment by zoom with a geriatrician within four weeks of their initial hepatology assessment. Follow-up by telephone using a standardized survey regarding ease of access and quality of their telehealth experience then occurred at 3-4 weeks, 3 months and 6 months for emergency room visits and hospital admission status. Result(s) Pending Conclusion(s) Pending Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; Pfizer Canada Disclosure of Interest J. Zhu Grant / Research support from: Pfizer Canada, F. Carr Grant / Research support from: Pfizer Canada, P. Tian: None Declared, M. McLeod: None Declared, M. MacFarlane: None Declared, S. De Coutere: None Declared, M. Sun: None Declared, K. Peltekian: None Declared
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Affiliation(s)
- J Zhu
- Digestive Care and Endoscopy, Dalhousie University, Halifax
| | | | - P Tian
- Family Medicine, University of Alberta, Edmonton
| | | | - M MacFarlane
- Digestive Care and Endoscopy, Dalhousie University, Halifax
| | | | - M Sun
- Geriatric Medicine, Dalhousie University, Halifax, Canada
| | - K Peltekian
- Digestive Care and Endoscopy, Dalhousie University, Halifax
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Han B, Zhong H, Tian P, Zhao Y, Guo Q, Yu X, Yu Z, Zhang X, Li Y, Chen L, Zhang Y, Shi X, Wang J. 136P Tislelizumab (TIS) plus chemotherapy (chemo) for EGFR-mutated non-squamous non-small cell lung cancer (nsq-NSCLC) failed to EGFR tyrosine kinase inhibitors (TKIs) therapies: The primary analysis. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Lu S, Zhang Y, Zhang G, Zhou J, Cang S, Cheng Y, Wu G, Cao P, Lv D, Jian H, Chen C, Jin X, Tian P, Wang K, Jiang G, Chen G, Chen Q, Zhao H, Ding C, Guo R, Sun G, Wang B, Jiang L, Liu Z, Fang J, Yang J, Zhuang W, Liu Y, Zhang J, Pan Y, Chen J, Yu Q, Zhao M, Cui J, Li D, Yi T, Yu Z, Yang Y, Zhang Y, Zhi X, Huang Y, Wu R, Chen L, Zang A, Cao L, Li Q, Li X, Song Y, Wang D, Zhang S. EP08.02-139 A Phase 2 Study of Befotertinib in Patients with EGFR T790M Mutated NSCLC after Prior EGFR TKIs. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.822] [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: 10/14/2022]
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Gao Y, Tian P, Zhang X, Dou M, Deng G, Ding X, Xue W. P2.07: ASXL1 May Promote the Differentiation and Function of TH17 Cells. Transplantation 2022. [DOI: 10.1097/01.tp.0000888184.05592.a3] [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: 11/25/2022]
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13
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Fang W, Fang J, Tian P, Fan Y, Yu Q, Zhang X, Wang Z, Zhang L. 1032P ML41256: Phase II study of atezolizumab (atezo) in combination with bevacizumab (beva) in advanced non-squamous non-small cell lung cancer (nsqNSCLC) patients (pts) pretreated with epidermal growth factor receptor (EGFR) tyrosine-kinase inhibitors (TKIs). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1158] [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: 11/24/2022] Open
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Tian P, Dou M, Zheng B, Deng G, Ding C, Zheng J, Ding X, Xue W. P8.064: Development and Validation of a Nomogram for Remnant Kidney Function After Living-Donor Donation. Transplantation 2022. [DOI: 10.1097/01.tp.0000888660.82650.7e] [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: 11/25/2022]
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Wu Q, Tian X, Gong N, Zheng J, Liang D, Li X, Lu X, Xue W, Tian P, Wen J. Early graft loss due to acute thrombotic microangiopathy accompanied by complement gene variants in living-related kidney transplantation: case series report. BMC Nephrol 2022; 23:249. [PMID: 35836191 PMCID: PMC9284761 DOI: 10.1186/s12882-022-02868-7] [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: 01/27/2022] [Accepted: 06/29/2022] [Indexed: 11/10/2022] Open
Abstract
Background Recently, early graft loss has become very rare in living-related kidney transplantation (LKT) as a result of decreased risk of hyperacute rejection and improvements in immunosuppressive regimens. Post-transplant acute thrombotic microangiopathy (TMA) is a rare, multi-factorial disease that often occurs shortly after kidney transplantation and is usually resistant to treatment with dismal renal outcomes. The complement genetic variants may accelerate the development of TMA. However, the complement genetic test was seldom performed in unknown native kidney disease recipients scheduled for LKT. Case presentation We reported three cases of unknown native kidney diseases who had fulminant TMA in the allograft shortly after LKT. Both the donors and the recipients were noted to carry complement genetic variants, which were identified by genetic testing after transplantation. However, all recipients were refractory to treatment and had allograft loss within 3 months after LKT. Conclusion This case series highlights the suggestion to screen complement gene variants in both the donors and the recipients with unknown native kidney diseases scheduled for LKT. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02868-7.
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Affiliation(s)
- Qianqian Wu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xiaohui Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Nianqiao Gong
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Dandan Liang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xue Li
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xia Lu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China.
| | - Jiqiu Wen
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China.
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Dou M, Ding C, Zheng B, Deng G, Zhu K, Xu C, Xue W, Ding X, Zheng J, Tian P. Immune-Related Genes for Predicting Future Kidney Graft Loss: A Study Based on GEO Database. Front Immunol 2022; 13:859693. [PMID: 35281025 PMCID: PMC8913884 DOI: 10.3389/fimmu.2022.859693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/08/2022] [Indexed: 11/22/2022] Open
Abstract
Objective We aimed to identify feature immune-related genes that correlated with graft rejection and to develop a prognostic model based on immune-related genes in kidney transplantation. Methods Gene expression profiles were obtained from the GEO database. The GSE36059 dataset was used as a discovery cohort. Then, differential expression analysis and a machine learning method were performed to select feature immune-related genes. After that, univariate and multivariate Cox regression analyses were used to identify prognosis-related genes. A novel Riskscore model was built based on the results of multivariate regression. The levels of these feature genes were also confirmed in an independent single-cell dataset and other GEO datasets. Results 15 immune-related genes were expressed differently between non-rejection and rejection kidney allografts. Those differentially expressed immune-related genes (DE-IRGs) were mainly associated with immune-related biological processes and pathways. Subsequently, a 5-immune-gene signature was constructed and showed favorable predictive results in the GSE21374 dataset. Recipients were divided into the high-risk and low-risk groups according to the median value of RiskScore. The GO and KEGG analysis indicated that the differentially expressed genes (DEGs) between high-risk and low-risk groups were mainly involved in inflammatory pathways, chemokine-related pathways, and rejection-related pathways. Immune infiltration analysis demonstrated that RiskScore was potentially related to immune infiltration. Kaplan-Meier survival analysis suggested that recipients in the high-risk group had poor graft survival. AUC values of 1- and 3-year graft survival were 0.804 and 0.793, respectively. Conclusion Our data suggest that this immune-related prognostic model had good sensitivity and specificity in predicting the 1- and 3-year kidney graft survival and might act as a useful tool for predicting kidney graft loss.
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Affiliation(s)
- Meng Dou
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Chenguang Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Bingxuan Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ge Deng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Kun Zhu
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Cuixiang Xu
- Center of Shaanxi Provincial Clinical Laboratory, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Wujun Xue
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jin Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Puxun Tian,
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Deng L, Tian P, Chen S. Tanshinone IIA Induces Apoptosis of Leukemia Cancer Cells and Inhibits Tumor Growth In Vivo Through Mitochondrial Pathway. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.960] [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: 11/22/2022] Open
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Han B, Tian P, Zhao Y, Yu X, Guo Q, Yu Z, Zhang X, Li Y, Chen L, Shi X, Zhang Y, Wang J. 148P A phase II study of tislelizumab plus chemotherapy in EGFR mutated advanced non-squamous NSCLC patients failed to EGFR TKI therapies: First analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.167] [Citation(s) in RCA: 1] [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] [Indexed: 11/29/2022] Open
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Liu X, Huang J, Tian P, Hu J, Zou L. Development of a Self-reported Olfactory Dysfunction Questionnaire (SODQ) to screen olfactory disorders in China. Rhinology 2021; 59:393-397. [PMID: 34129661 DOI: 10.4193/rhin21.028] [Citation(s) in RCA: 1] [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] [Indexed: 01/06/2023]
Abstract
BACKGROUND The diagnosis of olfactory dysfunction is challenging given the negligence during routine physical examination, inconvenience of diagnosis in clinical practice, and the inattention to cross-cultural adaptability. The study aimed to develop and validate a simple and effective self-reported olfactory dysfunction questionnaire (SODQ) for the initial screening of clinical olfactory disorders in China. METHODS A total of 121 subjects participated in the study; of these, 96 subjects completed the T&T olfactometer test and 12-item questionnaire, and 25 participants were retested using the SODQ after one week. The T&T olfactometer test examined the olfactory function and the questionnaire measured the ability to perceive common odors in daily life. We evaluated the factor structure, reliability, validity, and discriminative ability of the SODQ. RESULTS The final version of the SODQ consisted of 10 items with one factor. Test-retest and internal consistency were excellent. Convergent validity of the questionnaire with the T&T olfactory test was high. Furthermore, the discrimination ability was high for the questionnaire with an area under the curve of 0.95 and a cut-off point of 22. CONCLUSIONS The SODQ is a brief, valid, and repeatable tool that has the potential to effectively screen for clinical olfactory disorders from a subjective perspective.
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Affiliation(s)
- X Liu
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University
| | - J Huang
- Chemical Senses and Mental Health Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - P Tian
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University
| | - J Hu
- Chemical Senses and Mental Health Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China; Department of Psychiatry, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - L Zou
- Chemical Senses and Mental Health Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China; Department of Psychiatry, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Zhang R, Tian P, Zhao S, Li W. Development and validation of novel diagnostic nomogram for tuberculous pleurisy based on TB-IGRA results. Int J Tuberc Lung Dis 2021; 24:1178-1185. [PMID: 33172526 DOI: 10.5588/ijtld.20.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE: To establish the diagnostic nomogram for tuberculous pleurisy (TP) based on TB-interferon-gamma release assays (TB-IGRA), as well as clinical and peripheral blood characteristics.MATERIAL AND METHODS: Patients who underwent TB-IGRA tests during hospitalisation and were finally diagnosed, were retrospectively and continuously enrolled. TP was divided into confirmed TP (cTP) and presumptive TP (pTP), and corresponding diagnostic nomograms were established.RESULTS: A total of 1283 patients were enrolled (median age 49 years, range 14-96; males: 63.1%). The area under the curve (AUC) of TB-IGRA was 0.81 (95%CI 0.77-0.84) for cTP (n = 272) and 0.74 (95%CI 0.71-0.78) for pTP (n = 644). The false-positive and negative rates of TB-IGRA among non-TP and cTP were respectively 32.4% and 16.8%. Based on LASSO analysis, we then selected respectively 12 and 10 predictors from clinical and peripheral blood characteristics to establish cTP and pTP nomograms (TB-IGRA was selected). The cTP and pTP nomograms had an AUC of 0.93 (95%CI 0.90-0.95) and 0.92 (95%CI 0.90-0.94) in the training group, and 0.91 (95%CI 0.87-0.96) and 0.93 (95%CI 0.89-0.96) in the validation group, respectively, which were superior to TB-IGRA test alone.CONCLUSION: Novel predictive nomograms with less invasiveness were provided based on TB-IGRA test to assist differential diagnosis of TP and non-TP patients.
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Affiliation(s)
- R Zhang
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - P Tian
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China, Department of Lung Cancer Treatment Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - S Zhao
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Li
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Wang Y, Wang Y, Tian P, Han R, Li L, He Y. P76.01 Impact of Clinicopathological Features on Efficacy of Osimertinib in Advanced NSCLC Patients With EGFR Mutations. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1058] [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: 11/25/2022]
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Cai C, Tang Y, Li Y, Chen Y, Tian P, Wang Y, Gong Y, Peng F, Zhang Y, Yu M, Wang K, Zhu J, Lu Y, Huang M. P84.07 Distribution and Therapeutic Outcomes of Intergenic Sequence-ALK Fusion and Coexisting ALK Fusions in Lung Adenocarcinoma Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1206] [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: 10/21/2022]
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Zheng J, Hu X, Ding X, Li Y, Ding C, Tian P, Xiang H, Feng X, Pan X, Yan H, Hou J, Tian X, Liu Z, Wang X, Xue W. Comprehensive assessment of deceased donor kidneys with clinical characteristics, pre-implant biopsy histopathology and hypothermic mechanical perfusion parameters is highly predictive of delayed graft function. Ren Fail 2021; 42:369-376. [PMID: 32338125 PMCID: PMC7241463 DOI: 10.1080/0886022x.2020.1752716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Due to the current high demand for transplant tissue, an increasing proportion of kidney donors are considered extended criteria donors, which results in a higher incidence of delayed graft function (DGF) in organ recipients. Therefore, it is important to fully investigate the risk factors of DGF, and establish a prediction system to assess donor kidney quality before transplantation.Methods: A total of 333 donation after cardiac death kidney transplant recipients were included in this retrospective study. Both univariate and multivariate analyses were used to analyze the risk factors of DGF occurrence. Receiver operating characteristic (ROC) curves were used to analyze the predictive value of variables on DGF posttransplant.Results: The donor clinical scores, kidney histopathologic Remuzzi scores and hypothermic mechanical perfusion (HMP) parameters (flow and resistance index) were all correlated. 46 recipients developed DGF postoperatively, with an incidence of 13.8% (46/333). Multivariate logistic regression analysis of the kidney transplants revealed that the independent risk factors of DGF occurrence post-transplantation included donor score (OR = 1.12, 95% CI 1.06-1.19, p < 0.001), Remuzzi score (OR = 1.21, 95% CI 1.02-1.43, p = 0.029) and acute tubular injury (ATI) score (OR = 4.72, 95% CI 2.32-9.60, p < 0.001). Prediction of DGF with ROC curve showed that the area under the curve was increased to 0.89 when all variables (donor score, Remuzzi score, ATI score and HMP resistance index) were considered together.Conclusions: Combination of donor clinical information, kidney pre-implant histopathology and HMP parameters provide a more accurate prediction of DGF occurrence post-transplantation than any of the measures alone.
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Affiliation(s)
- Jin Zheng
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xiaojun Hu
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoming Ding
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Yang Li
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Chenguang Ding
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Puxun Tian
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Heli Xiang
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xinshun Feng
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoming Pan
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Hang Yan
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Jun Hou
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xiaohui Tian
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Zunwei Liu
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Xuzhen Wang
- Institute of Organ Transplant, Xi'an Jiaotong University, Xi'an, China
| | - Wujun Xue
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
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Ding C, Zheng J, Wang B, Li Y, Xiang H, Dou M, Qiao Y, Tian P, Ding X, Xue W. Exosomal MicroRNA-374b-5p From Tubular Epithelial Cells Promoted M1 Macrophages Activation and Worsened Renal Ischemia/Reperfusion Injury. Front Cell Dev Biol 2020; 8:587693. [PMID: 33324643 PMCID: PMC7726230 DOI: 10.3389/fcell.2020.587693] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 07/27/2020] [Accepted: 10/28/2020] [Indexed: 01/06/2023] Open
Abstract
Tubular epithelial cells (TECs) represent the primary site of renal ischemia/reperfusion injury (RIRI). However, whether the damage of TECs could drive the initiation of inflammation was unclear. Here we investigated the role of the TECs and macrophages during RIRI. Increased expression of inflammation response and activated M1 macrophage were determined in the mice model of RIRI. Moreover, we demonstrated global miRNA expression profiling of renal exosomes, and miR-374b-5p was most upregulated in these exosomes in vivo. Inhibition of miR-374b-5p in the mice upon RIR operation would alleviate the kidney injury via decreasing the production of proinflammatory cytokines and suppressing the macrophage activation. Similar results were also identified in the hypoxia-induced cell model where exosomal miR-374b-5p was dramatically upregulated. Uptake of exosomes derived from the hypoxic TECs by macrophages would trigger M1 polarization via transferring miR-374b-5p. Besides, we confirmed that miR-374b-5p could directly bind to Socs1 using a dual-luciferase reporter assay. Notably, when we injected the miR-374b-5p-enriched exosomes into mice, a high-level inflammatory response and M1 macrophage activation were performed. Our studies demonstrated that exosomal miR-374b-5p played an essential role in the communication between injured TECs and macrophages, resulting in the M1 macrophage activation during RIRI. The blockage of the release of such exosomes may serve as a new therapeutic strategy for RIRI.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Bo Wang
- Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Department of Materials Science and Engineering, Monash University, Melbourne, VIC, Australia
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Heli Xiang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yuxi Qiao
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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25
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Zhu P, Zhao SM, Li YZ, Guo H, Wang L, Tian P. Correlation of lipid peroxidation and ATP enzyme on erythrocyte membrane with fetal distress in the uterus in patients with intrahepatic cholestasis of pregnancy. Eur Rev Med Pharmacol Sci 2020; 23:2318-2324. [PMID: 30964154 DOI: 10.26355/eurrev_201903_17371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This paper aims to investigate the correlation of lipid peroxide in erythrocytes and ATP (Adenosine Triphosphate) enzyme activity of erythrocyte membrane with fetal distress in patients with intrahepatic cholestasis of pregnancy (ICP). PATIENTS AND METHODS Forty-three patients with ICP treated at Jining No. 1 People's Hospital were enrolled as a study group, and another forty healthy parturient women in the same period were enrolled as a control group, to extract their elbow venous blood and fetal umbilical cord blood. Thiobarbituric acid (TBA) was used to detect superoxide dismutase (SOD) activity of erythrocytes, malondialdehyde (MDA) activity in plasma, Na+-K+-ATP enzyme activity and Ca2+-Mg2+-ATP enzyme activity of erythrocytes, which were compared between the study and control groups. The correlation of MDA, Na+-K+-ATP enzyme and Ca2+-Mg2+-ATP enzyme activities with fetal distress in the study group was analyzed, and the correlation of MDA with Na+-K+-ATP enzyme activity was investigated. RESULTS SOD and MDA activities of erythrocytes in maternal blood of the study group were significantly higher than those in the control group (p<0.05, p<0.001, respectively), but MDA activity in umbilical cord blood of the study group was markedly higher than that in the control group (p<0.001). Na+-K+-ATP enzyme and Ca2+-Mg2+-ATP enzyme activities of maternal and fetal erythrocytes of the study group were remarkably lower than those of the control group (p<0.001). MDA in the fetal distress group was significantly higher than that in the no fetal distress group in the study group (p<0.001). Na+-K+-ATP enzyme activity was negatively correlated with MDA concentration in maternal and fetal erythrocytes of patients with ICP (both p<0.001). CONCLUSIONS Lipid peroxidation in patients with ICP will affect ATP enzyme activity of erythrocyte membrane, and the down-regulation of ATP enzyme activity in umbilical cord blood of patients with ICP may cause fetal distress in the uterus.
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Affiliation(s)
- P Zhu
- Department of Obstetrics, Jining No. 1 People's Hospital, Jining, P. R. China.
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26
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Tian P, Vyas D, Niu D, Zuo S, Jiang D, Xu C. Effects of calcium carbonate on the fermentation quality and aerobic stability of total mixed ration silage. J Anim Feed Sci 2020. [DOI: 10.22358/jafs/124047/2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Mi Z, Sun Z, Huang Z, Zhao P, Li Q, Tian P. Engineering CRISPR interference system to enhance the production of pyrroloquinoline quinone in Klebsiella pneumonia. Lett Appl Microbiol 2020; 71:242-250. [PMID: 32394472 DOI: 10.1111/lam.13311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/28/2019] [Revised: 05/05/2020] [Accepted: 05/05/2020] [Indexed: 11/28/2022]
Abstract
Pyrroloquinoline quinone (PQQ) is a cofactor of glucose dehydrogenase (GDH) and thus participates in glucose utilization. In Klebsiella pneumoniae, glucose utilization involves PQQ-dependent direct oxidation pathway (DOP) and phosphoenolpyruvate-dependent transport system (PTS). It is challenging to overproduce PQQ, as its biosynthesis remains unclear. Here, we report that PQQ production can be enhanced by stimulating the metabolic demand for it. First, we developed CRISPR interference (CRISPRi) system to block PTS and thereby intensify DOP. In shake-flask cultivation, the strain with CRISPRi system (simultaneously inhibiting four PTS-related genes) produced 225·65 nmol l-1 PQQ, which was 2·14 times that of wild type. In parallel, an exogenous soluble glucose dehydrogenase (sGDH) was overexpressed in K. pneumoniae. In the shake-flask cultivation, this sGDH-overexpressing strain accumulated 140·05 nmol l-1 PQQ, which was 1·33 times that of wild type. To combine the above two strategies, we engineered a strain harbouring both CRISPRi vector and sGDH-overexpressing vector. In the shake-flask cultivation, this two-plasmid strain generated 287·01 nmol l-1 PQQ, which was 2·72 times that of wild type. In bioreactor cultivation, this two-plasmid strain produced 2206·1 nmol l-1 PQQ in 57 h, which was 7·69 times that in shake-flask cultivation. These results indicate that PQQ production can be enhanced by intensifying DOP, as the apo-enzyme GDH is intrinsically coupled with cofactor PQQ. This study provides a strategy for the production of cofactors whose biosynthesis mechanisms remain ambiguous. SIGNIFICANCE AND IMPACT OF THE STUDY: Pyrroloquinoline quinone (PQQ) is an economically important chemical, which typically serves as a cofactor of glucose dehydrogenase (GDH) and thus participates in glucose metabolism. Klebsiella pneumoniae can naturally synthesize PQQ, but current yield constrains its commercialization. In this study, the PQQ level was improved by stimulating metabolic demand for PQQ, instead of overexpressing PQQ synthetic genes, as the synthetic mechanism remains ambiguous.
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Affiliation(s)
- Z Mi
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Z Sun
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Z Huang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - P Zhao
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Q Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - P Tian
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
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Zhang R, Tian P, Li W. Development and Validation of Novel Diagnostic Nomogram for Tuberculous Pleurisy Based on Interferon-Gamma Release Assays. C53. GLOBAL EXPERIENCES IN TB AND NTM CARE 2020. [DOI: 10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a5458] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- R. Zhang
- Pulmonary and critical care medicine, West China Hospital of Sichuan University, Chengdu, China
| | - P. Tian
- Pulmonary and critical care medicine, West China Hospital of Sichuan University, Chengdu, China
| | - W. Li
- Pulmonary and critical care medicine, West China Hospital of Sichuan University, Chengdu, China
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Han F, Dou M, Wang Y, Xu C, Li Y, Ding X, Xue W, Zheng J, Tian P, Ding C. Cordycepin protects renal ischemia/reperfusion injury through regulating inflammation, apoptosis, and oxidative stress. Acta Biochim Biophys Sin (Shanghai) 2020; 52:125-132. [PMID: 31951250 DOI: 10.1093/abbs/gmz145] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [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: 06/16/2019] [Revised: 07/20/2019] [Accepted: 11/18/2019] [Indexed: 12/25/2022] Open
Abstract
Cordycepin (3'-deoxyadenosine) is a naturally occurring adenosine analog and one of the bioactive constituents isolated from Cordyceps sinensis, species of the fungal genus Cordyceps. It has traditionally been a prized Chinese folk medicine for the human well-being. However, the actions of cordycepin against renal ischemia/reperfusion injury (I/R) are still unknown. In the present study, rats were subject to I/R and cordycepin was intragastrically administered for seven consecutive days before surgery to investigate the effects and mechanisms of cordycepin against renal I/R injury. The test results of kidney and peripheral blood samples of experimental animals showed that cordycepin significantly decreased serum blood urea nitrogen and creatinine levels and markedly attenuated cell injury. Mechanistic studies showed that cordycepin significantly regulated inflammation, apoptosis, and oxidative stress. These data provide new insights for investigating the natural product with the nephroprotective effect against I/R, which should be developed as a new therapeutic agent for the treatment of I/R in the future.
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Affiliation(s)
- Feng Han
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
| | - Meng Dou
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
| | - Yuxiang Wang
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
| | - Cuixiang Xu
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Center of Shaanxi Provincial Clinical Laboratory, Shaanxi Provincial People’s Hospital, Xi’an 710061, China
| | - Yang Li
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - XiaoMing Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - WuJun Xue
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Chenguang Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
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Ding C, Dou M, Wang Y, Li Y, Wang Y, Zheng J, Li X, Xue W, Ding X, Tian P. miR-124/IRE-1α affects renal ischemia/reperfusion injury by regulating endoplasmic reticulum stress in renal tubular epithelial cells. Acta Biochim Biophys Sin (Shanghai) 2020; 52:160-167. [PMID: 31965139 DOI: 10.1093/abbs/gmz150] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/24/2019] [Accepted: 11/25/2019] [Indexed: 12/11/2022] Open
Abstract
Acute kidney injury (AKI) refers to a clinical syndrome that occurs as a result of a rapid decline in renal function caused by multiple factors. Renal ischemia/reperfusion (I/R) injury is one of the main causes of AKI and has a high incidence and mortality. However, the specific pathogenesis of renal I/R injury is still unclear. In recent years, a major breakthrough has been made in the study of endoplasmic reticulum stress (ERS)-mediated apoptosis in I/R injury. It has been reported that miRNAs play protective roles in ischemic/reperfused organs, but the molecular mechanisms have not been investigated deeply. In this study, the renal I/R mouse model was used to explore the roles of miR-124 in ERS and in renal I/R injury. The western blot results showed that the expression levels of ERS-related proteins IRE-1α, XBP-1, and glucose-regulated protein 78 (GRP78) were significantly increased in the I/R model group when compared with those in the control group. Meanwhile, qPCR results showed that miR-124 expression was decreased in the I/R injury model, and overexpression of miR-124 using miR-124 mimics effectively reduced the expression of ERS-related proteins and alleviated renal I/R injury. In addition, luciferase reporter assay was performed, and the results showed that IRE-1α and miR-124 may have direct interaction. In conclusion, our data indicated that miR-124 was a negative regulator of ERS via binding to IRE-1α, ultimately conferring its protective effect on the kidney, which demonstrates the regulatory mechanism of miR-124 in renal I/R injury and provides new ideas and methods for the prevention and treatment of renal I/R injury.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Yuxiang Wang
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Ying Wang
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xiao Li
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute of Organ Transplantation, Xi’an Jiaotong University, Xi’an 710061, China
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Zhang YH, Tian P, Xu JP, Wang ZZ, Zhao XZ, Nie MX, Zhang MD, Zhao QM, Zhao BT, Song SJ. [The value of (18)F-fluorodeoxyglucose positron emission tomography-computed tomography ((18)F-FDG PET-CT) in evaluating the stability of atherosclerotic plaques]. Zhonghua Nei Ke Za Zhi 2019; 58:808-813. [PMID: 31665855 DOI: 10.3760/cma.j.issn.0578-1426.2019.11.004] [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: Positron emission tomography-computed tomography (PET-CT) has been used to quantify inflammatory response in the body. The aim of the present study was to explore the possibility of using this method to evaluate the stability of atherosclerotic plaques and the efficacy of atorvastatin in stabilizing atherosclerotic plaques. Methods: Twenty New Zealand male white rabbits were included and divided into the atorvastatin intervention group and the control group, with 10 rabbits in each group. Rabbits in both groups were fed with a high fat diet for 20 weeks, and treated with thoracoabdominal aortic balloon-pulling to establish atherosclerosis model at the end of the 2nd week. Rabbits in atorvastatin intervention group was given atorvastatin intragastrically once a day. At the 8th week, thoracoabdominal aortic ultrasound was used to detect plaques in all rabbits. Blood was drawn at the 3rd and the 20th week, respectively, to measure blood lipids, high-sensitive C-reactive protein (hs-CRP) and matrix metalloproteinase-9 (MMP-9). At the end of experiment, survival animals were scanned by (18)F-FDG PET-CT, and the average and maximum standard uptake values (SUVmean, SUVmax) of aortic segments were measured. Thereafter, the animals were sacrificed and aortic specimens of rabbits were taken and examined by immunohistochemistry. The pathological indexes were measured and compared. Results: At the end of experiment, the total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), hs-CRP [ (4.58±0.51) ng/ml vs.(5.87±0.66) ng/ml, P<0.01], MMP-9[ (43.93±2.16) ng/ml vs. (50.77±2.32) ng/ml, P<0.01], SUVmean (0.59±0.15 vs. 0.68±0.20, P<0.05) , SUVmax (0.68±0.20 vs. 0.81±0.27, P<0.05) , plaque area [ (0.36±0.24) mm(2) vs. (0.50±0.34) mm(2), P<0.05) ] and density of macrophage[ (4.34±1.54) % vs. (5.65±1.89) %, P<0.01] in the atorvastatin intervention group were significantly lower than those in the control group. In contrast, fiber cap thickness of the plaque[ (4.12±0.66) μm vs. (2.96±0.37) μm, P<0.01] in the atorvastatin intervention group was higher than that of the control group, and the difference was statistically significant. The arterial plaque areas were positively correlated with SUVmean (r=0.27, P<0.05) and SUVmax (r=0.43, P<0.01) . Fiber cap thickness was negatively correlated with SUVmean (r=-0.38, P<0.05) and SUVmax (r=-0.47, P<0.01) . The density of macrophage were positively correlated with SUVmean (r=0.52, P<0.01) and SUVmax (r=0.51, P<0.01) . Conclusion: (18)F-FDG PET/CT can be used to evaluate the efficacy of atorvastatin by the stability of atherosclerotic plaques.
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Affiliation(s)
- Y H Zhang
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | - P Tian
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | - J P Xu
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | - Z Z Wang
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | - X Z Zhao
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | - M X Nie
- Department of Cardiovascular Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - M D Zhang
- Department of Cardiovascular Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Q M Zhao
- Department of Cardiovascular Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - B T Zhao
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - S J Song
- Department of Cardiovascular Medicine, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
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Huang Y, Tian P, Zhang Y, Zhao Z, Cai S. Spectrum of pathogenic germline mutations in Chinese lung cancer patients through next-generation sequencing. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz238.050] [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: 11/13/2022] Open
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Lin G, Yuan M, Tian P, Chen L, Shi C, Wu Y, Yu F, Zhu L, Chen R, Xia X. P1.14-38 Identification of FGFR1-3 Fusions in Lung Cancers Using Comprehensive Next-Generation Sequencing. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1189] [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: 10/25/2022]
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Ding C, Han F, Xiang H, Wang Y, Dou M, Xia X, Li Y, Zheng J, Ding X, Xue W, Tian P. Role of prostaglandin E2 receptor 4 in the modulation of apoptosis and mitophagy during ischemia/reperfusion injury in the kidney. Mol Med Rep 2019; 20:3337-3346. [PMID: 31432142 DOI: 10.3892/mmr.2019.10576] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/04/2019] [Indexed: 11/09/2022] Open
Abstract
The mechanisms by which prostaglandin E2 receptor 4 (EP4) protects against renal ischemia‑reperfusion (I/R) injury (IRI) remain to be fully elucidated. In the present study, the protective effects of EP4 signaling on renal mitochondria and against renal IRI, as well as the underlying mechanisms, were investigated. A rat model of renal IRI was established. The right kidney was separated without damaging the artery clip, and the renal blood perfusion was then restored after 60 min. One group of animals was treated with EP4 agonists prior to I/R. The mitochondrial mass, the copy number of mitochondrial (mt)DNA, adenosine triphosphate (ATP) production and mitochondrial autophagy were analyzed. It was identified that renal IRI reduced the mitochondrial mass, decreased the mtDNA copy number and inhibited ATP production. The loss of renal mitochondria was attributed to the excessive mitochondrial autophagy induced by renal IRI. Pre‑treatment with EP4 agonist inhibited excessive mitochondrial autophagy, the loss of mitochondria and maintained and the energy imbalance within the cells. It was indicated that renal IRI causes excessive mitochondrial autophagy, which is one of the important causes of renal dysfunction.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Feng Han
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Heli Xiang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yuxiang Wang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xinxin Xia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Tian P, Abberton K, Elefanty A, Stanley E, Hollands J, Thompson L, Elwood N. Production of iPSCs from a small volume of cryopreserved human umbilical cord blood buffy coat under “gmp-compliant” conditions. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jin G, Liang Y, Yan X, Zhang L, Li Z, Yin A, Wang X, Tian P. Association between the <b><i>ACYP2</i></b> Polymorphisms and IgAN Risk in the Chinese Han Population. Kidney Blood Press Res 2019; 44:810-822. [DOI: 10.1159/000501703] [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
<b><i>Background/Aims:</i></b> The association between <i>ACYP2</i>(Acylphosphatase 2) polymorphisms and immunoglobulin A nephropathy (IgAN) risk in the Chinese Han population remains unclear. We aimed to evaluate the association between <i>ACYP2</i> polymorphisms and IgAN risk by performing a case-control study. <b><i>Methods:</i></b> Eleven <i>ACYP2</i> single nucleotide polymorphisms (SNPs) from 416 IgAN patients and 495 healthy controls were genotyped using the Sequenom MassARRAY platform. Odds ratio (OR) and 95% confidence interval (CI) were calculated to evaluate the association of <i>ACYP2</i> polymorphisms with IgAN risk. <b><i>Results:</i></b> We observed that rs843720 was significantly associated with an increased risk of IgAN (allele G: OR = 1.23, 95% CI: 1.01–1.49, <i>p</i> = 0.036; dominant model: OR = 1.55, 95% CI: 1.01–2.37, <i>p =</i>0.044; log-additive model: OR = 1.43, 95% CI: 1.04–1.95, <i>p</i> = 0.026) before Bonferroni correction. The SNP rs12615793 was also significantly associated with an increased IgAN risk in the recessive model (OR = 3.33, 95% CI: 1.05–10.51, <i>p</i> = 0.042) before Bonferroni correction. <b><i>Conclusion:</i></b> These findings suggested that polymorphisms (rs843720 and rs12615793) of <i>ACYP2</i> may be pivotal in the development of IgAN. However, more functional and association studies with larger sample sizes should be performed to further validate our results in the future.
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Han F, Tian P, Xia X, Wang Y, Dou M, Zheng J, Ding X, Xue W, Ding C. Effects of EDC-PEI heparinization on allogeneic vascular antigens and inflammation levels via a rat abdominal aorta transplantation model. Exp Ther Med 2018; 16:5053-5058. [PMID: 30542459 PMCID: PMC6257806 DOI: 10.3892/etm.2018.6879] [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: 11/10/2017] [Accepted: 09/26/2018] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to investigate the possibility of increasing the remote patency rate of allogeneic vessel transplantation through studying the effects of N-ethyl-N-(3-dimethylaminopropyl)-carbodiimide and polyethyleneimine (EDC-PEI) heparinization on allogeneic vascular antigens and inflammation levels. Forty rats were randomly divided into the control group, the EDC group, the PEI group and the EDC-PEI group. The rat abdominal aorta was used as the object of study, and the transplanted blood vessels were pretreated with EDC as the water-soluble cross-linking agent and PEI as the heparin-coated carrier. A rat abdominal aorta allogeneic transplantation model was established. Ultrasonic examination was used for observation of patency of proximal and distal anastomosis in each group. The tissue repair after abdominal aorta transplantation in each group was examined by H&E staining. The biomechanics, denaturation temperature and blasting strength of each group were compared. The levels of IL-1, IL-6 and TNF-α in serum of rats were measured by ELISA method, and the expression of MHC-II and α-GAL antigens in blood vessels were detected by immunohistochemistry. There were different degrees of thickening and inflammatory cell aggregation in the abdominal aorta of rats in the control, EDC and PEI groups, but there was no obvious lesion in the EDC-PEI group. Compared with the four groups, the mechanical characteristics of the EDC group decreased significantly, and the stenosis rate of anastomotic stoma in the EDC group was higher than that in the EDC-PEI and PEI groups (P<0.05). The denaturation temperature of the PEI group was lower than that of the EDC and EDC-PEI groups (P<0.05). The mechanical property and vascular bursting strength in the EDC-PEI group were similar to those in the control group. At the same time, it has more significant advantages than the other three groups in removing the vascular antigens MHC-II and α-GAL and reducing the level of inflammatory reaction, thus increasing the remote patency rate of allogeneic vascular transplantation. The inflammatory response and vascular antigenicity after transplantation are effectively reduced via the rat abdominal aorta transplantation model treated with allogeneic EDC-PEI heparinization, which has a higher remote patency rate.
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Affiliation(s)
- Feng Han
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xinxin Xia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yuxiang Wang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Dobbs BM, Dobbs BM, Jamieson J, Charles L, Chan K, Tian P. PEOPLE OF DEMENTIA - THE POWER OF STORY TELLING. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3229] [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)
- B M Dobbs
- University of Alberta, Edmonton, Alberta, Canada, Edmonton, Alberta, Canada
| | - B M Dobbs
- The Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - J Jamieson
- The Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - L Charles
- The Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - K Chan
- The Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - P Tian
- The Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
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Ding C, Han F, Xiang H, Xia X, Wang Y, Dou M, Zheng J, Li Y, Xue W, Ding X, Tian P. LncRNA CRNDE is a biomarker for clinical progression and poor prognosis in clear cell renal cell carcinoma. J Cell Biochem 2018; 119:10406-10414. [PMID: 30129055 DOI: 10.1002/jcb.27389] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/09/2018] [Indexed: 12/30/2022]
Abstract
Colorectal neoplasia differentially expressed (CRNDE) served as an oncogenic long noncoding RNA (lncRNA) to be involved in the initialization and development of human cancers. However, the clinical significance and biological function of CRNDE in clear cell renal cell carcinoma (ccRCC) was not fully understood. In our study, we found CRNDE levels were increased in ccRCC tissue specimens and cell lines, and corrected with advanced clinical stage, large tumor size, lymph node metastasis, distant metastasis, and poor pathological grade in patients with ccRCC. Furthermore, levels of CRNDE were negatively correlated with overall survival of patients with ccRCC, and high-expression of CRNDE was an independent poor prognostic factor for patients with ccRCC. Moreover, loss-of-function and gain-of-function approaches showed CRNDE-enhanced ccRCC cell migration and invasion through modulating EMT-associated genes. In conclusion, CRNDE acts as an oncogenic lncRNA in ccRCC.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Feng Han
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Heli Xiang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Xinxin Xia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Yuxiang Wang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
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Elwood N, Abberton K, Tian P, Elefanty A, Stanley E, Youngson J, Diviney M, Holdsworth R, Tiedemann K, Little M. Expanding cellular therapies through provision of A cord blood—derived ipsc haplobank. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.03.006] [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: 11/25/2022]
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42
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Momirovski D, Tian P, Bell K, Pepe S, Elwood N. Characterisation of SIRPα + cells in umbilical cord blood. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.364] [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: 12/01/2022]
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43
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Wang Y, Wang W, Tian P, Li W. PUB012 Quantitative Analysis of ctDNA Differentiates Necessity for Repeat Biopsy in NSCLC Patients Developed EGFR-TKI Resistance. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1875] [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: 10/18/2022]
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Jin Z, Xu C, Duan W, Yang J, Tian P. [The level of IL-2 and IL-6 in stimulated peripheral lymphocyte supernatants of kidney transplant recipients can predict acute renal allograft rejection]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2017; 33:1024-1029. [PMID: 28871940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective To detect the expressions of interleukin 2 (IL-2) and IL-6 using in vitro lymphocyte stimulation and flow cytometric microcarrier assay, and explore the feasibility of the method for predicting the acute rejection in kidney transplant recipients. Methods Using phorbol myfismte acetate (PMA)/ionomycin, we stimulated the peripheral blood lymphocytes in vitro from 52 kidney transplant recipients, including 22 ones with acute rejection (AR) and 30 with stable allograft function (STA). Eight hours later, we detected the expressions of IL-2 and IL-6 in cell culture supernatant by flow cytometric microcarrier assay. IL-2 and IL-6 expressions were compared between in the stimulated cell culture supernatant and in the unstimulated plasma, as well as between the two groups to evaluate the ability of the method predicting the acute rejection. Results The expressions of IL-2 and IL-6 in the AR group were significantly higher than those in the STA group after the peripheral blood lymphocytes were stimulated. In both of the groups, the expressions of IL-2 and IL-6 in stimulated lymphocyte culture supernatants were significantly higher than those in the unstimulated plasma. The sensitivity and specificity of combined IL-2 and IL-6 detection in stimulated lymphocyte culture supernatants for predicting the acute rejection were 81.8% and 90%, respectively, which were higher than the individual sensitivity and specificity. Conclusion The method of detecting both IL-2 and IL-6 expressions in stimulated peripheral lymphocyte culture supernatants by flow microsphere carrier assay had good sensitivity and specificity for predicting the acute renal allograft rejection in kidney transplant recipients.
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Affiliation(s)
- Zhankui Jin
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Cuixiang Xu
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061; Shaanxi Provincial Center of Clinical Laboratory, Xi'an 710068, China
| | - Wanli Duan
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061; Department of Urology, Xi'an 710068, China
| | - Jiangcun Yang
- Department of Blood Transfusion, Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China. Corresponding author, E-mail:
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Li S, Liu X, Lei J, Yang J, Tian P, Gao Y. Crocin Protects Podocytes Against Oxidative Stress and Inflammation Induced by High Glucose Through Inhibition of NF-κB. Cell Physiol Biochem 2017; 42:1481-1492. [DOI: 10.1159/000479212] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 05/16/2017] [Indexed: 11/19/2022] Open
Abstract
Background/Aims: Diabetic nephropathy (DN) is a microangiopathic disease characterized by excessive urinary albumin excretion, which occurs in 30% of patients with diabetes mellitus. It is the second leading cause of end-stage renal diseases in China. Nuclear factor-kappa B (NF-κB) is reported to be closely correlated with the inflammation underlying diabetes-associated renal damage. Crocin, a plant-derived compound, has antioxidant properties that may inhibit NF-κB. Methods: In the present study, we used a conditionally immortalized mouse podocyte cell line to explore whether crocin could effectively block albuminuria. Cells were incubated with 15 or 25 mM D-glucose to mimic diabetic conditions. The expression of Wilms tumor 1 (WT-1) and synaptopodin was evaluated to identify differentiated podocytes, and the expression of nephrin, podocin, and CD2ap was measured as markers of slit diaphragms, the main structures within the glomerular filtration barrier. Results: The high-glucose conditions led to reduced nephrin, podocin, and CD2ap expression, which was prevented by pretreatment with crocin. The oxidative stress and pro-inflammatory response of podocytes associated with DN induced by high glucose were also reduced by crocin pretreatment. Phosphorylated IκBα (p-IκBα) expression induced by high glucose was also significantly decreased by crocin pretreatment. Moreover, pyrrolidine dithiocarbamate, a NF-κB inhibitor, pyrrolidine dithio carbamate, augmented the protective effects of crocin. Conclusion: Our results demonstrate a protective role of crocin against damage to podocytes and slit diaphragms under high-glucose conditions via inhibition of NF-κB. This study presents a potential therapy for DN and contributes to the understanding of the mechanism underlying DN.
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Charles L, Parmar J, Dobbs B, Brémault-Phillips S, Babenko O, Tian P. DECISION-MAKING CAPACITY ASSESSMENT (DMCA) TRAINING FOR PHYSICIANS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.768] [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)
- L. Charles
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - J. Parmar
- Network of Excellence in Seniors’ Health and Wellness, Covenant Health, Edmonton, Alberta, Canada,
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - B.M. Dobbs
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - S. Brémault-Phillips
- Department of Occupational Therapy, University of Alberta, Edmonton, Alberta, Canada,
| | - O. Babenko
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - P. Tian
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
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Jin Z, Xu C, Duan W, Yang J, Tian P. [Serum soluble HLA-G, soluble CD30 is correlated to the time after transplantation in renal transplant recipients]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2017; 33:947-952. [PMID: 28712403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective To investigate the expressions of serum soluble human leukocyte antigen G (sHLA-G) and soluble CD30 (sCD30) in renal transplant recipients at different time after transplantation, and explore the relationship between the expressions of serum sHLA-G, sCD30 and the time after renal transplantation. Methods Eleven kidney transplant recipients and 10 healthy donors were selected, in which the dynamic changes of serum sHLA-G and sCD30 were detected by ELISA before transplantation and 1 year after transplantation; 33 kidney transplant recipients with normal renal graft were selected and divided into three groups: 1-5 years, 5-10 years and 10 years post-transplantation. The expressions of serum sHLA-G and sCD30 in the recipients were tested over one year after transplantation. Results The level of serum sHLA-G before transplantation was not significantly different from that of the control group. There was no significant difference between pre-transplantation, 1 week and 1 month after transplantation. Serum sHLA-G level of renal transplant recipients at 3 months after transplantation was higher than that 1 month after transplantation. There was no significant change in serum sHLA-G level among 3, 6 and 12 months after transplantation. The level of serum sHLA-G in the group of transplant time >10 years was significantly higher than that in the group of transplant time ≤5 years. The serum sHLA-G level was significantly associated with the time after renal transplantation. The level of serum sCD30 before transplantation was higher than that in the control group and decreased in 1 week after transplantation. There were no significant differences in sCD30 level between 1, 3, 6, and 12 months after transplantation, and similarly, there were also no significant differences between the groups of transplant time ≤5 years, 5-10 years and 10 years after transplantation. The level of sCD30 was significantly associated with the time within 1 month after renal transplantation. Conclusion The serum sHLA-G in kidney transplant recipients with normal renal graft increased with the time after renal transplantation, while the serum sCD30 level was reduced within 1 month after renal transplantation.
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Affiliation(s)
- Zhankui Jin
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061; Department of Orthopedics, Shaanxi Provincial People's Hospital, Third Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710068, China
| | - Cuixiang Xu
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061; Shaanxi Provincial Clinical Laboratory Center, Shaanxi Provincial People's Hospital, Third Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710068, China
| | - Wanli Duan
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061; Department of Urology, Shaanxi Provincial People's Hospital, Third Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710068, China
| | - Jiangcun Yang
- Department of Blood Transfusion, Shaanxi Provincial People's Hospital, Third Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710068, China
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China. *Corresponding author, E-mail:
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Xue W, Tian P, Xiang H, Ding X, Pan X, Yan H, Hou J, Feng X, Liu L, Ding C, Tian X, Li Y, Zheng J. Outcomes for primary kidney transplantation from donation after Citizens' death in China: a single center experience of 367 cases. BMC Health Serv Res 2017; 17:250. [PMID: 28376778 PMCID: PMC5379606 DOI: 10.1186/s12913-017-2190-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 03/25/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The cases of donation after brain death followed by circulatory death (DBCD) and donation after cardiac death (DCD) have been increased year by year in China. Further research is needed to understand in the outcomes and risk factors of delayed graft function (DGF) in order to minimize the risk of DGF and ameliorate its potential impact on long-term outcomes. This study was to explore the differences in outcomes between DBCD and DCD transplant and the main risk factors for DGF in DBCD. METHODS Retrospective analysis of the clinical data of 367donations after citizens' death kidney transplant procedures (donors and recipients) between July 2012 and August 2015 at our center. RESULTS During the study period, the donation success rate was 25.3%. 164 cases of DBCD and 35 cases of DCD had been implemented and 367 kidneys were transplanted. The incidence of DGF in DBCD group were significantly lower than that of DCD group (12.0% vs. 27.0%, p = 0.002). The 1-year percent freedom from acute rejection (AR) was significantly higher in DBCD group compared with it of DCD group (94% vs. 82%, p = 0.036). Multivariate logistic regression analysis of the kidney transplants revealed that the high risk factors for DGF after renal transplantation in DBCD were history of hypertension (Odds Ratio [OR] = 5.88, 95% CI: 1.90 to 18.2, p = 0.002), low blood pressure (BP < 80 mmHg) (OR = 4.86, 95% CI: 1.58 to 14.9, p = 0.006) and serum creatinine of donor (OR = 1.09, 95% CI: 1.03 to 1.16, p = 0.003) before donation. CONCLUSIONS The outcomes of DBCD could be better than DCD in DGF and AR. The main risk factors for DGF in DBCD kidney transplants are donors with a history of hypertension, low blood pressure, and serum creatinine of donor before donation.
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Affiliation(s)
- Wujun Xue
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Puxun Tian
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Heli Xiang
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Xiaoming Ding
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Xiaoming Pan
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Hang Yan
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Jun Hou
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Xinshun Feng
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Linjuan Liu
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Chenguang Ding
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Xiaohui Tian
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Yang Li
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
| | - Jin Zheng
- Department of Renal Transplant, Center of Nephropathy, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, 277 Yanta West Road, Xi’an, 710061 China
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Zhao Y, Ding C, Xue W, Ding X, Zheng J, Gao Y, Xia X, Li S, Liu J, Han F, Zhu F, Tian P. Genome-wide DNA methylation analysis in renal ischemia reperfusion injury. Gene 2017; 610:32-43. [PMID: 28189760 DOI: 10.1016/j.gene.2017.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 09/14/2016] [Revised: 12/19/2016] [Accepted: 02/06/2017] [Indexed: 10/20/2022]
Abstract
Renal ischemia reperfusion injury (IRI) is frequently encountered after kidney transplantation and is a leading cause of acute renal failure. Aberrant gene expression and epigenetic regulation occur during the pathophysiology of IRI. In this study, we used reduced representation bisulfite sequencing to identify the DNA methylome of renal tissues during IRI and the sham-operated tissues in C57BL/6. The methylation status of approximately 1.29 million CpGs located in an average of 11554 CpG islands and 17113 promoters in genome was determined. Compared with sham-operated kidney, both acute and chronic IRI significantly decreased the genome-wide methylation level (1.1-1.8%) and the CpG methylation level in the promoter (0.4-0.5%), CpG island (0.5-1.3%), exon (1.3-1.9%), and intron (0.8-1.1%; all P<10-153). The promoters of 200, 191, and 79 genes were differentially methylated in the renal tissues at 24h, 7days, and at both the time points after IRI, respectively. Among the 79 genes, which were consistently epigenetically regulated at two time points, 18 genes (22.8%) showed differential expression after IRI in a previous study of renal expression. We validated the promoter methylation status and expression of five out of the 18 genes, including 2700049A03Rik, Ccr9, Fgd2, Pfkfb3, and Sdc4 in an independent renal tissue cohort. We found that all the five genes exhibited altered methylation of promoter (P=0.009-0.0001) following renal injury. The promoter methylation of 2700049A03Rik and Ccr9 was negatively correlated with their mRNA expression in renal tissues (P<0.001 and P<0.0001, respectively). Our study not only demonstrated a genome-wide DNA methylation pattern in the IR-injured renal tissue for the first time, but also indicated that the regulation of promoter methylation is an important mechanism underlying persistent alteration of gene expression.
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Affiliation(s)
- Yanlong Zhao
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Chenguang Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Wujun Xue
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Jin Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Yi Gao
- Department of Nephrology, Affiliated Xi'an Central Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, PR China
| | - Xinxin Xia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Sutong Li
- Department of Nephrology, Affiliated Xi'an Central Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, PR China
| | - Jing Liu
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Feng Han
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Feng Zhu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China.
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China.
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Ding C, Xue W, Tian P, Ding X, Pan X, Yan H, Xiang H, Feng X, Hou J, Tian X, Li Y, Zheng J. Outcomes of standard dose EC-MPS with low exposure to CsA in DCD renal transplantation recipients with DGF. Int J Clin Pract 2016:8-15. [PMID: 26176940 DOI: 10.1111/ijcp.12661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AIMS The lower limit of exposure to cyclosporine A (CsA) has not yet been established in donation after cardiac death (DCD) renal transplantation recipients with delayed graft function (DGF) receiving enteric-coated mycophenolate sodium (EC-MPS) therapy. Stable and adequate mycophenolic acid (MPA) dosing may facilitate lower CsA exposure after DCD renal transplantation in recipients with DGF without compromising safety. METHODS A 12-month, single-centre open-label prospective trial was performed in our centre. According to their DGF risk index using the previous DGF prediction models, we divided up the patients on oral CsA into either a DGF group (n = 26) and no DGF group (n = 48). All of the patients initially received the standard EC-MPS dosing (1440 mg/day). The initial dose of CsA in the low risk of DGF group was 4.5 mg/kg/day and in the high risk of DGF group was 2.5 mg/kg/day. Efficacy parameters, safety and tolerability were assessed over a 12-month study period. RESULTS The incidence of DGF was 18.5% in the 162 DCD recipients. Between the DGF group and the no DGF group, the 1-year patient survival and graft survival were not significantly different. The incidence of BPAR was higher in the DGF group (26.9% vs. 8.3%, p = 0.032). Most patients in the DGF group had recovery of renal function after 1 month. The adverse events between the two groups were not significantly different. The daily EC-MPS doses of the DGF group were significantly higher than the no DGF group before the 6-month follow-up period. There were no significant differences between the two groups regarding the mean AUC levels during the follow-up period. CONCLUSIONS These results show that low expose CsA with standard dosing of EC-MPS and thymoglobulin was efficacious, safe and well-tolerated in DCD renal transplant recipients with DGF in China. Furthermore, stable and adequate MPA exposure helped to reduce the dose of and exposure to CsA. Thus, this may lead to less-induced nephrotoxicity and better renal function recovery.
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Affiliation(s)
- C Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - W Xue
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - P Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - X Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - X Pan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - H Yan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - H Xiang
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - X Feng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - J Hou
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - X Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - Y Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
| | - J Zheng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, China
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