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Zhu H, Zhao T, Zhao S, Yang S, Jiang K, Li S, Kang Y, Yang Z, Shen J, Shen S, Tao H, Xuan J, Yang M, Xu B, Wang F, Jiang M. O-GlcNAcylation promotes the progression of nonalcoholic fatty liver disease by upregulating the expression and function of CD36. Metabolism 2024:155914. [PMID: 38642829 DOI: 10.1016/j.metabol.2024.155914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND AND AIMS Nonalcoholic fatty liver disease (NAFLD) and its progressive variant, nonalcoholic steatohepatitis (NASH), constitute a burgeoning worldwide epidemic with no FDA-approved pharmacotherapies. The multifunctional immunometabolic receptor, fatty acid translocase CD36 (CD36), plays an important role in the progression of hepatic steatosis. O-GlcNAcylation is a crucial posttranslational modification that mediates the distribution and function of CD36, but its involvement in NAFLD remains poorly understood. METHODS O-GlcNAcylation and CD36 expression were evaluated in human liver tissues obtained from NASH patients and normal control. Mice with hepatocyte-specific CD36 knockout were administered adeno-associated viral vectors expressing wild-type CD36 (WT-CD36) or CD36 O-GlcNAcylation site mutants (S468A&T470A-CD36) and were provided with a high-fat/high-cholesterol (HFHC) diet for 3 months. RT-qPCR analysis, immunoblotting, dual-luciferase reporter assays, chromatin immunoprecipitation, and coimmunoprecipitation were performed to explore the mechanisms by which O-GlcNAcylation regulates CD36 expression. Membrane protein extraction, immunofluorescence analysis, site-directed mutagenesis, and fatty acid uptake assays were conducted to elucidate the impact of O-GlcNAcylation on CD36 function. RESULTS O-GlcNAcylation and CD36 expression were significantly increased in patients with NASH, mouse models of NASH, and palmitic acid-stimulated hepatocytes. Mechanistically, the increase in O-GlcNAcylation facilitated the transcription of CD36 via the NF-kB signalling pathway and stabilized the CD36 protein by inhibiting its ubiquitination, thereby promoting CD36 expression. On the other hand, O-GlcNAcylation facilitated the membrane localization of CD36, fatty acid uptake, and lipid accumulation. However, site-directed mutagenesis of residues S468 and T470 of CD36 reversed these effects. Furthermore, compared with their WT-CD36 counterparts, HFHC-fed S468A&T470A-CD36 mice exhibited decreases in systemic insulin resistance, steatosis severity, inflammation and fibrosis. Pharmacological inhibition of O-GlcNAcylation and CD36 also mitigated the progression of NASH. CONCLUSIONS O-GlcNAcylation promotes the progression of NAFLD by upregulating CD36 expression and function. Inhibition of CD36 O-GlcNAcylation protects against NASH, highlighting a potentially effective therapeutic approach for individuals with NASH.
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Affiliation(s)
- Hanlong Zhu
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Tianming Zhao
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China; Department of Gastroenterology, Nanjing Drum Tower Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China.
| | - Si Zhao
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Suzhen Yang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Kang Jiang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Shupei Li
- Department of Gastroenterology, Nanjing University of Chinese Medicine, Jinling School of Clinical Medicine, Nanjing, Jiangsu, China
| | - Ying Kang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Zhuoxin Yang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Jiajia Shen
- Department of General Surgery, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Si Shen
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Hui Tao
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
| | - Miaofang Yang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
| | - Bing Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
| | - Mingzuo Jiang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
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Yang W, Wen W, Ren X, Zhai Q, Li S, Xuan J. Zipper repair of 3 cm iatrogenic colonic perforation with dual-channel endoscope and twin grasper-assisted titanium clip. DEN Open 2024; 4:e276. [PMID: 37483878 PMCID: PMC10361542 DOI: 10.1002/deo2.276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/04/2023] [Accepted: 07/09/2023] [Indexed: 07/25/2023]
Abstract
A 53-year-old man undergoing painless colonoscopy for long-term diarrhea. After colonoscopy withdrawing to the sigmoid colon, a local perforation was found, about 3 cm in size, oval in shape. We used a two-channel endoscope and grip to pull the edges of the intestinal wall on both sides of the perforation site to close together, and then repair the 3 cm oval perforation of the colon through multiple ordinary titanium clips. The patient had no obvious infection after surgery and recovered well after 1 month of follow-up. Preliminary experience has shown that using multiple titanium clips under dual-channel endoscope to zipper suture can effectively repair 3 cm iatrogenic colonic perforations.
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Affiliation(s)
- Wei Yang
- Department of GastroenterologyJinling Clinical Medical CollegeNanjing Medical UniversityNanjingChina
| | - Wei Wen
- Department of GastroenterologyThe Second Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Xiaoli Ren
- Department of GastroenterologyJinling Hospital Affiliated to Nanjing UniversityNanjingChina
| | - Qi Zhai
- Department of GastroenterologyJinling Hospital Affiliated to Nanjing UniversityNanjingChina
| | - Shupei Li
- Department of GastroenterologyJinling Clinical Medical CollegeNanjing University of Chinese MedicineNanjingChina
| | - Ji Xuan
- Department of GastroenterologyJinling HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
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Wei J, Chen C, Feng J, Zhou S, Feng X, Yang Z, Lu H, Tao H, Li L, Xv H, Xuan J, Wang F. Muc2 mucin O-glycosylation interacts with enteropathogenic Escherichia coli to influence the development of ulcerative colitis based on the NF-kB signaling pathway. J Transl Med 2023; 21:793. [PMID: 37940996 PMCID: PMC10631195 DOI: 10.1186/s12967-023-04687-2] [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: 06/26/2023] [Accepted: 10/31/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic inflammatory disease of the intestine characterized by a compromised intestinal epithelial barrier. Mucin glycans are crucial in preserving barrier function during bacterial infections, although the underlying mechanisms remain largely unexplored. METHODS A cohort comprising 15 patients diagnosed with UC and 15 healthy individuals was recruited. Stool samples were collected to perform 16S rRNA gene sequencing, while biopsy samples were subjected to nanocapillary liquid chromatography-tandem mass spectrometry (nanoLC-MS/MS) to assess O-glycosylation. Gene expression was evaluated through qPCR analysis and Western blotting. Furthermore, animal experiments were conducted to investigate the effects of Escherichia coli and/or O-glycan inhibitor benzyl-α-GalNAc on the development of colitis in mice. RESULTS Our findings revealed that the mucus barrier was disrupted during the early stages of UC, while the MUC2 protein content remained unaltered. Additionally, a noteworthy reduction in the O-glycosylation of MUC2 was observed, along with significant changes in the intestinal microbiota during the early stages of UC. These changes included a decrease in intestinal species richness and an increase in the abundance of Escherichia coli (E. coli). Moreover, subsequent to the administration of galactose or O-glycan inhibitor to intestinal epithelial cells, it was observed that the cell culture supernatant had the ability to modify the proliferation and adhesive capacity of E. coli. Furthermore, when pathogenic E. coli or commensal E. coli were cocultured with intestinal epithelium, both strains elicited activation of the NF-KB signaling pathway in epithelial cells and facilitated the expression of serine protease in comparison to the untreated control. Consistently, the inhibition of O-glycans has been observed to enhance the pathogenicity of E. coli in vivo. Furthermore, a correlation has been established between the level of O-glycans and the development of ulcerative colitis. Specifically, a reduction in the O-glycan content of MUC2 cells has been found to increase the virulence of E. coli, thereby compromising the integrity of the intestinal epithelial barrier. CONCLUSIONS Together, there exist complex interactions between the intestinal epithelium, O-glycans, and the intestinal microbiota, which may inform the development of novel therapeutic strategies for the treatment of ulcerative colitis.
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Affiliation(s)
- Juan Wei
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Chunyan Chen
- Department of Gastroenterology and Hepatology, The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Jing Feng
- Department of Gastroenterology and Hepatology, The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Shuping Zhou
- Department of Gastroenterology and Hepatology, Huainan First People's Hospital and, First Affiliated Hospital of The Medical College of Anhui, University of Science and Technology, Huainan, 232000, Anhui, People's Republic of China
| | - Xiaoyue Feng
- Department of Gastroenterology and Hepatology, Jinling Clinical College of Nanjing Medical University, Nanjing, 210002, People's Republic of China
| | - Zhao Yang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Heng Lu
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Hui Tao
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Liuying Li
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Huabing Xv
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China.
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China.
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Wei J, Zhang Y, Chen C, Feng X, Yang Z, Feng J, Jiang Q, Fu J, Xuan J, Gao H, Liao L, Wang F. Efficacy and safety of allogeneic umbilical cord-derived mesenchymal stem cells for the treatment of complex perianal fistula in Crohn's disease: a pilot study. Stem Cell Res Ther 2023; 14:311. [PMID: 37904247 PMCID: PMC10617053 DOI: 10.1186/s13287-023-03531-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 10/10/2023] [Indexed: 11/01/2023] Open
Abstract
OBJECTIVES The aim of the study was to evaluate the efficacy and safety of allogeneic umbilical cord-derived mesenchymal stem cells (TH-SC01) for complex perianal fistula in patients with Crohn's disease (CD). METHODS This was an open-label, single-arm clinical trial conducted at Jinling Hospital. Adult patients with complex treatment-refractory CD perianal fistulas (pfCD) were enrolled and received a single intralesional injection of 120 million TH-SC01 cells. Combined remission was defined as an absence of suppuration through an external orifice, complete re-epithelization, and absence of collections larger than 2 cm measured by magnetic resonance imaging (MRI) at 24 weeks after cell administration. RESULTS A total of 10 patients were enrolled. Six patients (60.0%) achieved combined remission at 24 weeks. The number of draining fistulas decreased in 9 (90.0%) and 7 (70.0%) patients at weeks 12 and 24, respectively. Significant improvement in Perianal Crohn Disease Activity Index, Pelvic MRI-Based Score, Crohn Disease Activity Index, and quality of life score were observed at 24 weeks. No serious adverse events occurred. The probability of remaining recurrence-free was 70% at week 52. CONCLUSION The study demonstrated that local injection of TH-SC01 cells might be an effective and safe treatment for complex treatment-refractory pfCD after conventional and/or biological treatments fail (ClinicalTrials.gov ID, NCT04939337). TRIAL REGISTRATION The study was retrospectively registered on www. CLINICALTRIALS gov (NCT04939337) on June 25, 2021.
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Affiliation(s)
- Juan Wei
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Yufei Zhang
- Department of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Chunyan Chen
- Department of Gastroenterology and Hepatology, The First School of Clinical Medicine, Southern Medical University, Guangzhou Da Dao Bei 1838, Guangzhou, China
| | - Xiaoyue Feng
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Zhao Yang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Jing Feng
- Department of Gastroenterology and Hepatology, The First School of Clinical Medicine, Southern Medical University, Guangzhou Da Dao Bei 1838, Guangzhou, China
| | - Qiong Jiang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Jinjin Fu
- Department of Gastroenterology and Hepatology, The Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Hong Gao
- Department of Radiology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China
| | - Lianming Liao
- Center of Laboratory Medicine, Union Hospital of Fujian Medical University, No. 29, Xinquan Road, Fuzhou, 350001, People's Republic of China.
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, People's Republic of China.
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Zhang Y, Wang X, Zhu Y, Liang C, Zhao L, Meng Q, Yin JC, Shi Y, Wang F, Qin F, Xuan J. Case Report: Cancer spectrum and genetic characteristics of a de novo germline POLD1 p.L606M variant-induced polyposis syndrome. Front Oncol 2023; 13:1222873. [PMID: 37746257 PMCID: PMC10516538 DOI: 10.3389/fonc.2023.1222873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/20/2023] [Indexed: 09/26/2023] Open
Abstract
Germline variations in the DNA polymerase genes, POLE and POLD1, can lead to a hereditary cancer syndrome that is characterized by frequent gastrointestinal polyposis and multiple primary malignant tumors. However, because of its rare occurrence, this disorder has not been extensively studied. In this report, we present the case of a 22-year-old female patient who had been diagnosed with gastrointestinal polyposis, breast fibroadenoma, multiple primary colorectal cancers, and glioblastoma (grade IV) within a span of 4 years. Next-generation sequencing analysis revealed a germline variant in POLD1 (c.1816C>A; p.L606M). In silico analysis using protein functional predicting software, including SIFT, Polyphen, GERP++, and CADD, further confirmed the pathogenicity of POLD1 p.L606M (classified as ACMG grade Class 4). In line with polymerase deficiency, both rectal cancer and glioblastoma tissues exhibited a high tumor mutation burden, with 16.9 muts/Mb and 347.1 muts/Mb, respectively. Interestingly, the patient has no family history of cancer, and gene examination of both parents confirms that this is a de novo germline variant. Therefore, molecular screening for POLD1 may be necessary for patients with such a cancer spectrum, regardless of their family history.
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Affiliation(s)
- Ying Zhang
- Department of Pathology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, China
| | - Xiaolu Wang
- Department of Oncology, The Affiliated Hospital, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuning Zhu
- Department of Pathology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, China
| | - Chong Liang
- Department of Neurosurgery Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, China
| | - Lijun Zhao
- Medical Science Liaison, Genetron Health Inc., Beijing, China
| | - Qi Meng
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, China
| | - Jiani C. Yin
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, China
| | - Yuqian Shi
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, China
| | - Fufeng Wang
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, China
| | - Feng Qin
- Cancer Center, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing University, School of Medicine, Nanjing, China
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Ding Z, Xuan J, Tang G, Shi S, Liang X, An Q, Wang F. Rubber band ligation versus coagulation for the treatment of haemorrhoids: a meta-analysis of randomised controlled trials. Postgrad Med J 2023; 99:946-953. [PMID: 37117040 DOI: 10.1136/pmj-2022-141941] [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: 05/24/2022] [Accepted: 08/10/2022] [Indexed: 11/04/2022]
Abstract
Non-surgical therapies have the advantage of lower postoperative pain and complication rates compared with surgical therapies. Rubber band ligation and coagulation are two kinds of non-surgical therapies. The aim of this study is to compare the clinical outcomes of rubber band ligation and coagulation. A systematic review was conducted to identify randomised clinical trials that compare rubber band ligation and coagulation treatments for haemorrhoids. PubMed and Web of Science were searched, from inception to April 30th,2022. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. Fifty-nine studies were identified. Nine trials met the inclusion criteria. All trials were of moderate methodological quality. No significant difference was found between rubber band ligation and coagulation in terms of efficacy rate, postoperative prolapse rate, recurrence rate and postoperative urine retention rate after treatment. Patients undergoing rubber band ligation had higher postoperative pain rate and lower postoperative bleeding rate than patients undergoing coagulation. The subgroup analysis showed that there was no significant difference between rubber band ligation and infrared coagulation or non-infrared coagulation in terms of efficacy rate, postoperative bleeding and postoperative urine retention rate after treatment. Patients undergoing rubber band ligation had a higher postoperative pain rate than patients undergoing infrared coagulation or non-infrared coagulation. We believe that coagulation for haemorrhoids still has a good future. PROSPERO registration number CRD42022311281.
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Affiliation(s)
- Zhihao Ding
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Guoxing Tang
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shaopei Shi
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xuejun Liang
- Department of Gastroenterology, Lishui City People's Hospital, Lishui, Zhejiang, China
| | - Qin An
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Jinling College of Nanjing Medical University, Nanjing, Jiangsu, China
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Zhang B, Yang L, Ning H, Cao M, Chen Z, Chen Q, Lian G, Tang H, Wang Q, Wang J, Lin Z, Wen J, Liu Y, Xuan J, Li X, Lin A, He J, Zhang L, Hou X, Zeng Q, Xiao C. A Matching Strategy To Guide Donor Selection for Ulcerative Colitis in Fecal Microbiota Transplantation: Meta-Analysis and Analytic Hierarchy Process. Microbiol Spectr 2023; 11:e0215921. [PMID: 36472435 PMCID: PMC9927247 DOI: 10.1128/spectrum.02159-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Fecal microbiota transplantation (FMT) targeting gut microbiota has recently been applied to the treatment of ulcerative colitis (UC). However, preliminary trials showed that only a subset of patients responded to FMT, and the heterogeneity in donor gut microbiota probably played important roles in patients' responses, implying the significance of matching an appropriate donor to a specified patient. We developed a strategy to build a donor-recipient matching model to guide rational donor selection for UC in FMT. We collected and uniformly reanalyzed 656 fecal 16S rRNA gene sequencing samples (350 from UC patients and 306 from healthy subjects) from 9 studies. Significantly lower α-diversity indexes were observed in UC patients by random effects model. Thirty-four bacterial genera and 34 predicted pathways were identified with significant odds ratios and classification potentials for UC patients. Based on six bacterial indicators, including richness, overall distance, genera, and pathways (beneficial and harmful), the analytic hierarchy process-based donor-recipient matching model was set to rank and select appropriate donors for patients with UC. Finally, the model showed favorable classification powers (>70%) for FMT effectiveness in two previous clinical trials. This study revealed the dysbiosis of fecal bacterial diversity, composition, and predicted pathways of patients with UC by meta-analysis and hereby developed a donor-recipient matching strategy to guide donor selection for UC in FMT. This strategy can also be applied to other diseases associated with gut microbiota. IMPORTANCE Modulation of gut microbiota by FMT from donors has been applied to the treatment of UC and yielded variable effectiveness in clinical trials. One possibility is that this variable effectiveness was related to donor selection, as a patient's response to FMT may rely on the capability of the used donor's microbiota to restore the specific gut disturbances of the patient. However, the biggest issues on the practical level are what should be considered in the selection process and how to set up such a donor-recipient matching model. In this study, we presented a bacterial profile-based donor-recipient matching strategy to guide donor selection for UC in FMT by first meta-analysis of 656 fecal 16S rRNA gene sequencing samples from 9 studies to identify significant indicators and then setting up the model by an analytic hierarchy process. The applicability and accuracy of this model were verified in the data sets from two previous FMT clinical studies. Our data indicate that the donor-recipient matching model built in this study enables researchers to rationally select donors for UC patients in FMT clinical practice, although it needs more samples and prospective trials for validation. The strategy adopted in this study to leverage existing data sets to build donor-recipient matching models for precision FMT is feasible for other diseases associated with gut microbiota.
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Affiliation(s)
- Bangzhou Zhang
- School of Life Sciences, Xiamen Universitygrid.12955.3a, Xiamen, China
- School of Medicine, Xiamen Universitygrid.12955.3a, Xiamen, China
| | - Luxi Yang
- School of Life Sciences, Xiamen Universitygrid.12955.3a, Xiamen, China
| | - Hanbing Ning
- Department of Digestive Diseases, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Man Cao
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | - Zhangran Chen
- School of Medicine, Xiamen Universitygrid.12955.3a, Xiamen, China
| | - Qiongyun Chen
- School of Medicine, Xiamen Universitygrid.12955.3a, Xiamen, China
| | - Guanghui Lian
- Department of Gastroenterology, Xiangya Hospital, Changsha, China
| | - Hailing Tang
- Department of Gastroenterology, Xi'an Central Hospital, Xi’an, China
| | - Qizhi Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Junping Wang
- Department of Gastroenterology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Zhihui Lin
- Department of Gastroenterology, Fujian Provincial Hospital, Fuzhou, China
| | - Jianbo Wen
- Department of Gastroenterology, Pingxiang People’s Hospital, Pingxiang, China
| | - Yuedong Liu
- Department of Gastroenterology, The Third Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Xuejun Li
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Aiqiang Lin
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | - Jianquan He
- School of Medicine, Xiamen Universitygrid.12955.3a, Xiamen, China
| | - Lei Zhang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Technology and Science, Wuhan, China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Technology and Science, Wuhan, China
| | - Qiang Zeng
- Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Chuanxing Xiao
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, China
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Yang Z, Xuan J, Yang F, Qi Y, Yang M, Xu H, Jiang M, Shen S, Lu M, Shi H, Jiang K, Tao H, Liu Y, Wang F. Timing of endoscopic intervention in patients with cirrhosis with acute variceal haemorrhage (TEACH trial): protocol for a randomised clinical trial (RCT). BMJ Open 2022; 12:e060290. [PMID: 36691157 PMCID: PMC9442483 DOI: 10.1136/bmjopen-2021-060290] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 08/08/2022] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION Acute variceal haemorrhage (AVH) in patients with cirrhosis remains a topic of great interest. Although several guidelines recommend endoscopy within 24 hours after AVH, there is no consensus on the most appropriate time to perform this intervention. The purpose of this study is to identify whether urgent endoscopy (within 6 hours after gastroenterological consultation) is superior to non-urgent endoscopy (between 6 hours and 24 hours after gastroenterological consultation) in reducing the rebleeding rate of these patients. METHODS AND ANALYSIS This is a single-centred, prospective, randomised clinical trial. Between March 2021 and December 2023, an estimated 400 patients will be randomised in a 1:1 ratio to receive endoscopic intervention either within 6 hours or between 6 and 24 hours after gastroenterological consultation. Randomisation will be conducted by permuted block randomisation, with stratification by age, systolic blood pressure and pulse rate. The primary efficacy endpoint is rebleeding within 42 days after control of AVH. The secondary efficacy endpoints mainly include all-cause mortality within 42 days after randomisation, persistent bleeding, length of hospitalisation, etc. ETHICS AND DISSEMINATION: The study protocol was approved by the Ethical Committees of Jinling Hospital (authorised ethics no. DZQH-KYLL-21-01). This trial will provide valuable insights into the timing of endoscopic intervention for AVH in patients with cirrhosis. Furthermore, the trial results and conclusions could provide high-quality evidence to guide clinical research and treatment. TRIAL REGISTRATION NUMBER NCT04786743.
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Affiliation(s)
- Zhuoxin Yang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Ji Xuan
- Department of Gastroenterology, Qinhuai Medical District, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Fengwu Yang
- Department of Laboratory Medicine, Shandong Healthcare Group Zibo Hospital, Zibo, Shandong, China
| | - Ying Qi
- Department of Gastroenterology, The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Miaofang Yang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Huabing Xu
- Department of Gastroenterology, Qinhuai Medical District, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Mingzuo Jiang
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Si Shen
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Mengjie Lu
- School of Public Health, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Hui Shi
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Kang Jiang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Hui Tao
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
| | - Yuxiu Liu
- Data and Statistics Division of Department of Critical Care Medicine, Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, Chinese People's Liberation Army, Nanjing, Jiangsu, China
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Chen R, Lian Y, Wen S, Li Q, Sun L, Lai X, Zhang Z, Zhu J, Tang L, Xuan J, Yuan E, Sun S. Shibi Tea (Adinandra nitida) and Camellianin A Alleviate CCl4-Induced Liver Injury in C57BL-6J Mice by Attenuation of Oxidative Stress, Inflammation, and Apoptosis. Nutrients 2022; 14:nu14153037. [PMID: 35893891 PMCID: PMC9332116 DOI: 10.3390/nu14153037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/08/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023] Open
Abstract
Liver injury is a significant public health issue nowadays. Shibi tea is a non-Camellia tea prepared from the dried leaves of Adinandra nitida, one of the plants with the greatest flavonoid concentration, with Camellianin A (CA) being the major flavonoid. Shibi tea is extensively used in food and medicine and has been found to provide a variety of health advantages. The benefits of Shibi tea and CA in preventing liver injury have not yet been investigated. The aim of this study was to investigate the hepatoprotective effects of extract of Shibi tea (EST) and CA in mice with carbon tetrachloride (CCl4)-induced acute liver injury. Two different concentrations of EST and CA were given to model mice by gavage for 3 days. Treatment with two concentrations of EST and CA reduced the CCl4-induced elevation of the liver index, liver histopathological injury score, alanine aminotransferase (ALT), and aspartate aminotransferase (AST). Western blotting and immunohistochemical analysis demonstrated that EST and CA regulated the oxidative stress signaling pathway protein levels of nuclear factor E2-related factor 2 (Nrf2)/heme-oxygenase-1 (HO-1), the expression of inflammatory cytokines, the phosphorylated nuclear factor-kappaB p65 (p-NF-κB)/nuclear factor-kappaB p65 (NF-κB) ratio, the phospho-p44/42 mitogen-activated protein kinase (p-MAPK), and the apoptosis-related protein levels of BCL2-associated X (Bax)/B cell leukemia/lymphoma 2 (Bcl2) in the liver. Taken together, EST and CA can protect against CCl4-induced liver injury by exerting antioxidative stress, anti-inflammation, and anti-apoptosis.
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Affiliation(s)
- Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Yingyi Lian
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, Guangzhou 510641, China;
| | - Shuai Wen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Zhenbiao Zhang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Junquan Zhu
- Guangdong Society of Plant Protection, Guangzhou 510640, China;
| | - Linsong Tang
- Taihongyuan Agriculture Co., Ltd., Xinyi, Maoming 525000, China;
| | - Ji Xuan
- Hospital of South China University of Technology, Guangzhou 510641, China;
| | - Erdong Yuan
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, Guangzhou 510641, China;
- Correspondence: (E.Y.); (S.S.); Tel.: +86-20-8711-04218 (E.Y.); +86-20-8516-1045 (S.S.)
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
- Correspondence: (E.Y.); (S.S.); Tel.: +86-20-8711-04218 (E.Y.); +86-20-8516-1045 (S.S.)
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10
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Wei J, Feng J, Chen L, Yang Z, Tao H, Li L, Xuan J, Wang F. Small intestinal bacterial overgrowth is associated with clinical relapse in patients with quiescent Crohn’s disease: a retrospective cohort study. Ann Transl Med 2022; 10:784. [PMID: 35965806 PMCID: PMC9372671 DOI: 10.21037/atm-22-3335] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/14/2022] [Indexed: 11/07/2022]
Abstract
Background Crohn’s disease (CD) is an irreversible inflammatory disorder, characterized by alternating periods of relapse and remission. It is particularly important to predict clinical relapses in patients with CD because patients in remission could relapse frequently in a randomized way. Small intestinal bacterial overgrowth (SIBO) is a symptom of gut microbial dysbiosis and is commonly observed in patients with CD, which may affect disease course. The present research was carried out to establish whether SIBO is linked to the subsequent clinical relapse of CD. Methods This retrospective observational cohort research included consecutive patients (≥18 years) with quiescent CD who underwent lactulose hydrogen-methane breath test to diagnose SIBO managed at Jinling Hospital in China from January 2016 to June 2020. We assessed demographic data, laboratory parameters, SIBO and clinical characteristics including disease location and behavior, surgical history and current and previous medication at baseline and analyzed these data to identify factors associated with clinical relapse. Patients were followed up for 18 months and assessed for the Crohn’s Disease Activity Index (CDAI) scores, treatment escalation, and disease progression to determine the primary endpoint of clinical relapse. Results Of the 73 enrolled patients, 34 (46.6%) were positive for SIBO. Twenty-seven (37.0%) patients experienced clinical relapse within 18 months (median time of relapse: 13.9 months). SIBO in the relapse group was considerably elevated compared to the non-relapse group (63.0% vs. 37.0%, P=0.032). The multivariate Cox regression analysis showed that SIBO [hazard ratio (HR) 2.79, P=0.017] and penetrating disease behavior (HR 3.66, P=0.040) were the sole individual risk elements for relapse in patients with quiescent CD. Conclusions This study indicated that SIBO was highly prevalent in patients with CD, and was independently linked to clinical relapse in quiescent patients. Detecting SIBO may be a valuable option for the prognostic assessment of patients in clinical remission.
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Affiliation(s)
- Juan Wei
- Department of Gastroenterology and Hepatology, Jinling Clinical College of Nanjing Medical University, Nanjing, China
| | - Jing Feng
- Department of Gastroenterology and Hepatology, the First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Liya Chen
- Department of Gastroenterology and Hepatology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang, China
| | - Zhao Yang
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, PLA, Nanjing, China
| | - Hui Tao
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, PLA, Nanjing, China
| | - Liuying Li
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, PLA, Nanjing, China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, General Hospital of Eastern Theater Command, PLA, Nanjing, China
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Jinling Clinical College of Nanjing Medical University, Nanjing, China
- Department of Gastroenterology and Hepatology, the First School of Clinical Medicine, Southern Medical University, Guangzhou, China
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11
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Shen S, Zhou W, Xuan J, Xu W, Xu H, Yang M, Zhu L, Yang Z, Yang B, Shi B, Zhao Y, Wang F. Overexpression of pressure-responsive miRNA-5703 inhibits pressure-induced growth and metastasis of liver cancer. J Cancer 2022; 13:325-342. [PMID: 34976193 PMCID: PMC8692678 DOI: 10.7150/jca.64926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/07/2021] [Indexed: 12/24/2022] Open
Abstract
A vast majority of liver cancers coexist with cirrhosis and/or portal hypertension. A high-pressure tumour microenvironment may lead to malignant progression of liver cancer. Through quantitative reverse transcription-polymerase chain reaction, we found that miRNA-5703 was expressed at low levels in HepG2 and Huh-7 cells and pressure-treated MHCC97H implanted mouse cancer tissues, while its potential target gene, sarcoma gene (SRC), was highly expressed. The expression of miRNA-5703 was higher in liver cancer tissues from Barcelona Clinic Liver Cancer (BCLC) stage A1 patients than those from BCLC stage A2-D patients, whereas SRC showed the opposite expression pattern. Bioinformatics analysis, luciferase reporter assay, and western blotting were performed to verify the relationship between miRNA-5703 and its potential target SRC. Using intravital imaging and immunohistochemistry, we demonstrated that pressure promotes tumour growth in subcutaneous tumourigenesis nude mice, and overexpression of miRNA-5703 significantly downregulated Ki67 and upregulated NM23 in tumour tissues of mice, implying the blockage of tumour growth and metastasis. The activation of proliferation, migration, and invasion of HepG2 and Huh-7 cells by pressure, and inhibition by overexpressing miRNA-5703 were observed by cell counting kit-8 assay, flow cycle assay, transwell assay, and wound healing assay. After the intervention of pressure, inhibitor, and lentivirus to hepatoma cells, SRC, focal adhesion kinase (FAK), phosphatidylinositol 3-kinase (PI3K), serum/glucocorticoid regulated kinase-3 (SGK3), phosphoinositide dependent protein kinase 1 (PDK1), and paxillin were upregulated, and forkhead box O1 (FOXO1) and cyclin dependent kinase inhibitor 1B (P27Kip1) were downregulated in pressure-loaded hepatoma cells, which could be reversed by overexpression of miRNA-5703 or SRC knockdown. In conclusion, upregulation of miRNA-5703 inhibited pressure-induced growth and metastasis by suppressing the SRC-FAK-FOXO1 axis and SRC-paxillin axis. This novel perspective may be conducive to the mechano-inspired anticancer drugs of liver cancer.
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Affiliation(s)
- Si Shen
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China.,Changzheng Hosp Dept of Gastroenterology, Naval Med Univ, Shanghai 200003, P R China
| | - Wenli Zhou
- Changzheng Hosp Dept of Oncology, Naval Med Univ, Shanghai 200003, P R China
| | - Ji Xuan
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
| | - Weijun Xu
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
| | - Huabing Xu
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
| | - Miaofang Yang
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
| | - Liang Zhu
- Changzheng Hosp Dept of Gastroenterology, Naval Med Univ, Shanghai 200003, P R China
| | - Zhuoxin Yang
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
| | - Benzhao Yang
- Dept of Cardiology, Naval Medical Center, Naval Med Univ, Shanghai 200005, P R China
| | - Bin Shi
- Changzheng Hosp Dept of Gastroenterology, Naval Med Univ, Shanghai 200003, P R China
| | - Ying Zhao
- Changzheng Hosp Dept of Traditional Chinese Medicine, Naval Med Univ, Shanghai 200003, P R China
| | - Fangyu Wang
- Jinling Hosp Dept of Gastroenterology and Hepatology, Nanjing Univ, Sch Med, Nanjing 210002, P R China
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12
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He J, He X, Ma Y, Yang L, Fang H, Shang S, Xia H, Lian G, Tang H, Wang Q, Wang J, Lin Z, Wen J, Liu Y, Zhai C, Wang W, Jiang X, Xuan J, Liu M, Lu S, Li X, Wang H, Ouyang C, Cao M, Lin A, Zhang B, Wu D, Chen Y, Xiao C. A comprehensive approach to stool donor screening for faecal microbiota transplantation in China. Microb Cell Fact 2021; 20:216. [PMID: 34838016 PMCID: PMC8626716 DOI: 10.1186/s12934-021-01705-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/09/2021] [Indexed: 12/31/2022] Open
Abstract
Background Faecal microbiota transplantation (FMT) is an effective therapy for recurrent Clostridium difficile infections and chronic gastrointestional infections. However, the risks of FMT and the selection process of suitable donors remain insufficiently characterized. The eligibility rate for screening, underlying microbial basis, and core ethical issues of stool donors for FMT are yet to be elucidated in China. Results The potential stool donors were screened from December 2017 to December 2019 with the help of an online survey, clinical assessments, and stool and blood testing. Bioinformatics analyses were performed, and the composition and stability of gut microbiota in stool obtained from eligible donors were dynamically observed using metagenomics. Meanwhile, we build a donor microbial evaluation index (DoMEI) for stool donor screening. In the screening process, we also focused on ethical principles and requirements. Of the 2071 participants, 66 donors were selected via the screening process (3.19% success rate). Although there were significant differences in gut microbiota among donors, we found that the changes in the gut microbiota of the same donor were typically more stable than those between donors over time. Conclusions DoMEI provides a potential reference index for regular stool donor re-evaluation. In this retrospective study, we summarised the donor recruitment and screening procedure ensuring the safety and tolerability for FMT in China. Based on the latest advances in this field, we carried out rigorous recommendation and method which can assist stool bank and clinicians to screen eligible stool donor for FMT. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-021-01705-0.
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Affiliation(s)
- Jianquan He
- School of Medicine, Xiamen University, Xiamen, China
| | - Xingxiang He
- Department of Gastroenterology, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yonghui Ma
- School of Medicine, Xiamen University, Xiamen, China
| | - Luxi Yang
- School of Medicine, Xiamen University, Xiamen, China
| | - Haiming Fang
- Department of Gastroenterology and Hepatology, The Second Hospital of Anhui Medical Univerisity, Hefei, China
| | - Shu Shang
- Department of Gastroenterology, The Fifth People's Hospital of Shenyang, Shenyang, China
| | - Huping Xia
- Anorectal Diagnosis and Treatment Center, The General Hospital of Xinjiang Military Region, Wulumuqi, China
| | - Guanghui Lian
- Department of Gastroenterology, Xiangya Hospital, Changsha, China
| | - Hailing Tang
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, China
| | - Qizhi Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Junping Wang
- Department of Gastroenterology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhihui Lin
- Department of Gastroenterology, Fujian Provincial Hospital, Fuzhou, China
| | - Jianbo Wen
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang, China
| | - Yuedong Liu
- Department of Gastroenterology, The Third Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Chunbao Zhai
- Department of Proctology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Wen Wang
- Department of Gastroenterology, 900th Hospital of PLA, Fuzhou, China
| | - Xueliang Jiang
- Department of Gastroenterology, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Morong Liu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Shiyun Lu
- Department of Gastroenterology, Fujian Provincial Hospital, Fuzhou, China
| | - Xuejun Li
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Han Wang
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | - Cong Ouyang
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | - Man Cao
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | - Aiqiang Lin
- Xiamen Treatgut Biotechnology Co., Ltd., Xiamen, China
| | | | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ye Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Abstract
Ulcerative colitis (UC) is an intestinal inflammatory disorder. Long non-coding RNAs (lncRNAs) are collectively involved in UC. This study is designed to explore the roles of lncRNA (small nucleolar RNA host gene 5) SNHG5 in UC. Gene or microRNA (miRNA) expression was detected using RT-qPCR and western blot, respectively. Cellular functions were analyzed by cell counting kit 8 (CCK8), 5-ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry, and the terminal deoxyribonucleotidyl transferase (TDT)-mediated dUTP-digoxigenin nick end labeling (TUNEL) assays. Lactate dehydrogenase (LDH) content was determined by a cell cytotoxicity assay. The interactions between miR-375 and SNHG5 or Janus kinase-2 (JAK2) were verified by a luciferase reporter assay. SNHG5 was up-regulated in intestinal mucosa tissues of UC patients as well as tumor necrosis factor alpha-treated (TNF-α-treated) young adult mouse colon (YAMC) cells. Down-regulated SNHG5 promoted cell proliferation and inhibited apoptosis of YAMC cells. miR-375 was verified to be a target of SNHG5 and was suppressed by TNF-α treatment in YAMC cells. Over-expression of miR-375 restored YAMC cellular functions. Additionally, miR-375 targeted JAK2, which was up-regulated by TNF-α treated YAMC cells. Up-regulation of JAK2 induced the dysfunction of YAMC cells. Knockdown of SNHG5 promoted the proliferation and suppressed the apoptosis of YAMC cells via regulating miR-375/JAK2 axis. Therefore, knockdown of SNHG5 may be a promising therapy for UC.
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Affiliation(s)
- Hui Li
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Wei Zhang
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zhentao An
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xinyu Fan
- Department of Preventive Treatment, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Min Lu
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yaozhou Tian
- Department of Gastroenterology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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Yang Z, Yang F, Yang M, Qi Y, Jiang M, Xuan J, Liu Y, Tao H, Liu Y, Wang F. Prediction of overall survival in patients with Stage I esophageal cancer: A novel web-based calculator. J Surg Oncol 2021; 124:767-779. [PMID: 34263466 DOI: 10.1002/jso.26594] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/27/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS In this study, we aimed to develop a convenient web-based calculator to predict the overall survival (OS) of patients with Stage I esophageal cancer (EC). METHODS Data of 1664 patients, between 2004 and 2015, were extracted from the Surveillance, Epidemiology, and End Results database. Least absolute shrinkage and selection operator regression was employed to sift variables; subsequently, Cox proportional hazards regression model was built. We applied the enhanced bootstrap validation to appraise the discrimination and calibration of the model. Clinical benefit was measured using decision curve analysis (DCA). Thereafter, a web-based calculator based on the model, which could be used to predict the 1-, 3-, and 5-year OS rates, was developed. RESULTS Race, age, histologic type, grade, N stage, and therapeutic methods were selected. C-indices of the prediction model in the training and validation groups were 0.726 (95% confidence interval [CI], 0.679-0.773) and 0.724 (95% CI, 0.679-0.769), respectively. Calibration curves showed good agreement between the groups. The DCA demonstrated that the prediction model is clinically useful. CONCLUSIONS The prediction model we developed showed a good performance in calculating the OS rates in patients with Stage I EC. The web-based calculator is available at https://championship.shinyapps.io/dynnomapp/.
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Affiliation(s)
- Zhuoxin Yang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Fengwu Yang
- Department of Laboratory Medicine, Shandong Guoxin Healthcare Group Zibo Hospital, Zibo, China
| | - Miaofang Yang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Ying Qi
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Mingzuo Jiang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Ji Xuan
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yu Liu
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hui Tao
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yuxiu Liu
- Data and Statistics Unit of Department of Critical Care Medicine, Jinling Hospital, Nanjing Medical University, Nanjing, China.,Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
| | - Fangyu Wang
- Department of Gastroenterology and Hepatology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Xuan J, Zhu D, Cheng Z, Qiu Y, Shao M, Yang Y, Zhai Q, Wang F, Qin F. Crocin inhibits the activation of mouse hepatic stellate cells via the lnc-LFAR1/MTF-1/GDNF pathway. Cell Cycle 2020; 19:3480-3490. [PMID: 33295246 PMCID: PMC7781632 DOI: 10.1080/15384101.2020.1848064] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 01/20/2023] Open
Abstract
Crocin is the main monomer of saffron, which is a momentous component of traditional Chinese medicine Lang Qing A Ta. Here, we tried to probe into the role of crocin in liver fibrosis. Hematoxylin-eosin staining and Sirius Red staining were used to observe the pathological changes of liver tissues. After hepatic stellate cells (HSCs) were isolated from liver tissues, lnc-LFAR1, MTF-1, GDNF, and α-SMA expressions were detected by qRT-PCR and western blot. Immunohistochemistry and immunofluorescence were used to detect α-SMA expression. Chromatin immunoprecipitation was used to analyze the binding of MTF-1 to the GDNF promoter. Moreover, the dual-luciferase reporter gene, RNA pull-down, and RNA immunoprecipitation were used to clarify the interaction between MTF-1 and GDNF, lnc-LFAR1 and MTF-1. The degree of liver fibrosis was more severe in the mice from the liver fibrosis model, while the liver fibrosis was alleviated by the injection of crocin. lnc-LFAR1, GDNF, and α-SMA were up-regulated, and MTF-1 was down-regulated in liver fibrosis tissues and cells, while these trends were reversed after the injection of crocin. Besides, lnc-LFAR1 negatively regulated MTF-1 expression, and positively regulated GDNF and α-SMA expressions, and MTF-1 was enriched in the promoter region of GDNF. Furthermore, the cellular direct interactions between MTF-1 and GDNF, lnc-LFAR1 and MTF-1 were verified. In vivo experiments confirmed the relief of crocin on liver fibrosis. Our research expounded that crocin restrained the activation of HSCs through the lnc-LFAR1/MTF-1/GDNF axis, thereby ameliorating liver fibrosis.
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Affiliation(s)
- Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Dongmei Zhu
- Department of Nursing, Jinling Hospital, Nanjing, China
| | - Zhengyuan Cheng
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Yuping Qiu
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Mei Shao
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Ya Yang
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Qi Zhai
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Fangyu Wang
- Department of Gastroenterology, Jinling Hospital, Nanjing, China
| | - Feng Qin
- Jinling Hospital, Nanjing, China
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Ning N, Wang S, Wang R, Tian Q, Xue X, Ye X, Xuan J. PCV20 A Real-World Study of Patient Characteristics and Treatment Patterns for Atrial Fibrillation in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.038] [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: 10/23/2022]
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Cai B, Tan J, Lin Z, Xuan J. PCV12 Radiofrequency Catheter Ablation Using Thermocool Smarttouch with or without Ablation INDEX (AI) Guided Versus the 2ND-Generation Cryoballoon for the Treatment of Atrial Fibrillation in China: A Cost- Effectiveness Analysis. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.030] [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: 11/28/2022]
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Yang F, Xuan J, Lyu R, Wu W, Onishchenko K, Jia F. PSS4 Disease Burden of Rvo-ME in China – a Societal VALUE Perspective. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.540] [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: 11/29/2022]
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Liu L, Li J, Xiao D, Xuan J. PMD3 A Budget IMPACT Analysis of Implementing Safety Needles for Venous Blood Collection in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.309] [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: 10/23/2022]
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Xuan J, Huang A, Hu D, Geng J, Tian Y, Cheng Z, Qiu Y. Huagan tongluo Fang improves liver fibrosis via down-regulating miR-184 and up-regulating FOXO1 to inhibit Th17 cell differentiation. Exp Mol Pathol 2020; 115:104447. [PMID: 32380055 DOI: 10.1016/j.yexmp.2020.104447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 03/19/2020] [Accepted: 05/02/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The purpose of this research is to reveal the improvement effect and potential mechanism of Huagan tongluo Fang (HGTLF) on liver fibrosis. METHODS A mouse model of liver fibrosis induced by CCl4 was established to analyze the effect of HGTLF on liver fibrosis. The expression changes of miRNA after HGTLF stimulation were detected by qRT-PCR. After interference with miR-184 in Th17 cells, the concentration of IL-17A in cell culture supernatants was detected by ELISA and the proportion of Th17 cells was analyzed by flow cytometry. The relationship between miR-184 and FOXO1 was verified by online software and dual-luciferase reporter system. After HGTLF treatment of Th17 cells overexpressing miR-184, the protein level of FOXO1 was detected by Western blot. RESULTS HGTLF could significantly improve liver fibrosis in mice. By qRT-PCR, miR-184 was most significantly expressed after HGTLF drug stimulation, and miR-184 was considered to be the major RNA involved in Th17 cell differentiation. Interference with miR-184 in Th17 cells inhibited the differentiation of Th17 cells. By online software and dual-luciferase reporter system assay, the direct interaction of miR-184 with FOXO1 was confirmed. After HGTLF treatment of Th17 cells overexpressing miR-184, FOXO1 protein levels were significantly up-regulated and inhibited the differentiation of Th17 cells, which was reversed by miR-184 inhibitors. The Vivo experiments also confirmed the improvement effect of HGTLF on liver fibrosis in mice. CONCLUSION Our results indicated that HGTLF could improve liver fibrosis via down-regulating miR-184 and up-regulating of FOXO1 to inhibit Th17 cell differentiation.
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Affiliation(s)
- Ji Xuan
- Department of Gastroenterology, Jinling Hospital, Nanjing 210002, Jiangsu, China
| | - Ang Huang
- Department of non-infection liver disease, The Center of Liver Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Dashan Hu
- Department of infection internal medicine, The Eighth Second Hospital of the General Hospital of the East War Zone, Huaian 223001, Jiangsu, China
| | - Jiabao Geng
- Department of infection internal medicine, Jinling Hospital, Nanjing 210002, Jiangsu, China
| | - Yaozhou Tian
- Department of Gastroenterology, Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing 210002, Jiangsu, China.
| | - Zhengyuan Cheng
- Department of Gastroenterology, Jinling Hospital, Nanjing 210002, Jiangsu, China
| | - Yuping Qiu
- Department of Gastroenterology, Jinling Hospital, Nanjing 210002, Jiangsu, China
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Clarke R, Dixon M, Jin L, Pearce D, Turnbull A, Selli C, Hu R, Zwart A, Wang Y, Xuan J, Sengupta S, Sims A, Liu MC. Abstract P5-04-17: Local network topology differences between early and late recurrence in ER+ breast cancers. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-04-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Late recurrence is characteristic of ER+ breast cancers. Despite an apparently effective adjuvant endocrine therapy, many breast cancers recur years after their initial endocrine treatment. Why some tumors recur early (<3 years) and some recur later (>5 years) is poorly understood. If systemic endocrine therapies killed all cells, recurrence would reflect only the appearance of new disease. Thus, we hypothesized that cells that survive and lie dormant may be driven, in part, by altered wiring of their cell death signaling. We, therefore, studied how cell death signaling is differentially wired in primary tumors that will recur early versus those that will recur later.
Method: Genes involved in apoptosis, autophagy, ferroptosis, necrosis, and pyroptosis were identified from KEGG to initiate network feature analysis of gene expression data from public and our first in-house gene expression dataset. Data were collected from ER+ breast cancer pre-endocrine treatment samples with up to 20 years follow-up. Publicly available datasets used were GSE6532, GSE2034, GSE7390, GSE17705, GSE12093, and TCGA. We applied our Knowledge-fused Differential Dependency Network (KDDN) analysis tool to the public datasets; KDDN has provided powerful new insights into signaling in breast and other cancers. Common gene-gene interactions (edges) predicted in at least two different datasets were extracted from all KDDN analyses results. To strengthen the relevance of these features, predicted network edges that represent known protein-protein interactions (PPI) were identified from the STRING database, and these edges were noted in the signaling graphs. Final network graphs were constructed using the common edges from all overlaid networks. We conducted IPA analysis on all nodes in the final network and selected those incorporating network hubs. We took a similar approach to our second in-house dataset, which we used for independent testing. Here, patients were included if their tumor exhibited an initial reduction in volume of at least 40% by four months in response to neo-adjuvant Letrozole. Patients were then classified into two groups during follow-up of up to 3.7 years: i) initial tumor size reduction followed by continued response (expected to recur late); ii) initial reduction followed by tumor regrowth (expected to recur early). KDDN analysis was performed on pretreatment samples from these two groups and a network created annotated with PPI information.
Results: MAPK8 and CYCS (Molecular Mechanisms of Cancer, p=1.58E-52), TNFRSF1A Neuroinflammation Signaling Pathway, p=1.26E-54), RELA, and NFKB1 (Colorectal Cancer Metastasis Signaling, p=7.94E-35), were identified as hubs. Hubs may be critical signaling components driving the differences between tumors that will become dormant and recur late. Connections between SLC25A6 and SQSTM1 (p = 0.008), BIRC2 and GABARAP (p = 0.021) in the early group, and AKT3 and IRS2 (p = 0.014) in the late group, were shared between the two final networks. With longer follow-up time on the second in-house dataset, we will better define the two groups and identify additional common phenotype specific gene-gene interactions.
Citation Format: Clarke R, Dixon M, Jin L, Pearce D, Turnbull A, Selli C, Hu R, Zwart A, Wang Y, Xuan J, Sengupta S, Sims A, Liu MC. Local network topology differences between early and late recurrence in ER+ breast cancers [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-04-17.
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Affiliation(s)
- R Clarke
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - M Dixon
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - L Jin
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - D Pearce
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Turnbull
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - C Selli
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - R Hu
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Zwart
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - Y Wang
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - J Xuan
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - S Sengupta
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Sims
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
| | - MC Liu
- Georgetown University, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Breast Cancer Now Research Labs, Edinburgh, Scotland, United Kingdom; Virginia Tech Research Center, Arlington, VA; Mayo Clinic, Rochester, MN
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Xuan J, Guo SL, Huang A, Xu HB, Shao M, Yang Y, Wen W. MiR-29a and miR-652 Attenuate Liver Fibrosis by Inhibiting the Differentiation of CD4+ T Cells. Cell Struct Funct 2018; 42:95-103. [PMID: 28768954 DOI: 10.1247/csf.17005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Liver fibrosis is the response of liver diseases that puzzles patients. MiRNAs were involved in the regulating processes of liver fibrosis. This study aims to investigate the effects of ARRB1 mediated by miR-29a and miR-652 on liver fibrosis and its possible mechanism. METHODS Liver fibrosis of mice was induced by intraperitoneal injection of CCl4. Liver function was observed by the levels of alanine transaminase (ALT) and aspartate transaminase (AST). Flow cytometry was used to detect the percent of T helper17 (Th17). ELISA (Enzyme linked immunoassay) was used to detect the levels of Interleukin-17 (IL-17) and Interleukin-22 (IL-22). Real-time PCR was used to detect the expression of IL-17A, IL-22, miR-29a, miR-652 and β-Arrestin 1 Gene (ARRB1). Western blot was used to detect the protein expression of ARRB1. RESULTS CCl4 supplementation significantly increased the level of ALT and AST, the percent of Th17, the level of IL-17A, IL-22, miR-29a and miR-652, but decreased ARRB1. Overexpression of miR-29a/miR-652 prominently decreased Th17, IL-17A, IL-22 and ARRB1 in the normal CD4+ T cells. Both miR-29a and miR-652 targeted ARRB1 to regulate its expression. The effects of miR-29a/miR-652 overexpression on CD4+ T cells were reversed by ARRB1 overexpression. In vivo experiments demonstrated the protective role of miR-29a/miR-652 overexpression on liver fibrosis. CONCLUSION ARRB1 mediated by miR-29a and miR-652 probably involved in the CD4+ T cells differentiation in patients with liver fibrosis, and functioned as a biomarker of fibrosis liver.Key words: liver fibrosis, miR-29a, miR-652, ARRB1, CD4+ T cells.
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Affiliation(s)
- Ji Xuan
- Bayi Hospital Affiliated Nanjing University of Chinese Medicine.,Nanjing University of Chinese Medicine
| | | | - Ang Huang
- Center of Non-infectious Liver Diseases, Beijing 302 Hospital
| | - Hua-Bing Xu
- Bayi Hospital Affiliated Nanjing University of Chinese Medicine
| | - Mei Shao
- Bayi Hospital Affiliated Nanjing University of Chinese Medicine
| | - Ya Yang
- Bayi Hospital Affiliated Nanjing University of Chinese Medicine
| | - Wei Wen
- Bayi Hospital Affiliated Nanjing University of Chinese Medicine
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Clarke R, Dixon MJ, Jin L, Turnbull A, Hu R, Zwart A, Wang Y, Xuan J, Sengupta S, Renshaw L, Sims A, Liu MC. Abstract P4-04-10: Molecular features of dormancy in ER+ breast cancers. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-04-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:Late recurrence (emergence from dormancy) is characteristic of ER+ breast cancers. Despite adjuvant endocrine therapy, many breast cancers recur decades after their initial diagnosis and treatment. Why this occurs is poorly understood.
Methods: We studied 2 independent datasets of endocrine treated, ER+ breast cancers with up to 20 years follow-up. The 1st comprised matched samples from the primary tumor pretreatment at diagnosis and the first recurrence after or during adjuvant endocrine therapy (all FFPE). The 2nd dataset comprised pretreatment biopsies only (all snap frozen). For both datasets, high quality RNA was amplified, labelled, and subjected to transcriptome analysis using the Affymetrix technology (U133 Plus 2.0). Low quality data were identified using 'simpleaffy' and 'ffpe', and removed; all tools were from the R package unless otherwise noted. Remaining data were normalized using 'frma'. Genes differentially expressed between early (≤3 years) and late (≥ 5 years) were selected using limma. Unsupervised hierarchical clustering and PCA explored the structure of the data.
A similar molecular analysis was done on the 2nd dataset. A classification scheme that robustly separated early from late recurrences was validated in an independent public dataset of comparable patients, array platform, and frozen tissues. We also explored features in pretreatment samples that predetermined response duration.
Results: Genes that separated pretreatment specimens by recurrence time did not separate posttreatment specimens. Specimens did not cluster in patient pairs or by site of recurrence.
8245 genes were differentially expressed between early and late recurrences in the FFPE samples, while 2400 genes were significantly different in the same comparison in the frozen samples. Initial pathway analysis was done on each dataset independently using IPA (Ingenuity® Systems, www.ingenuity.com). 70 canonical pathways were identified in common between the two datasets (pretreatment). We then looked for genes regulated in both datasets (ignores FFPE and frozen tissue as source). There were 279 genes in common that differentially regulated in the same direction (upregulated; downregulated). IPA analysis of these genes identified 49 canonical pathways. We also explored the differentially expressed gene sets using 'GSEA' (www.software.broadinstitute.org/gsea/index.jsp). Pathways consistently associated with early vs. late recurrence include integrin signaling, the unfolded protein response, endoplasmic reticulum stress, actin-based motility, and estrogen biosynthesis.
Conclusion: Analysis of pretreatment tumors can predict early recurrences from those that will remain dormant and recur much later. Recurrent tumors exhibit a remodeled molecular landscape that likely reflects the effects of treatments and/or a recreation of a niche with potentially common features at the site of recurrence. Changes in molecular signaling associated with duration of recurrence are consistent with our experimental model studies in vitro implicating UPR signaling as a major integrator of response to endocrine therapy and duration of survival. Additional data sets are being arrayed and more detailed molecular signaling studies are in progress.
Citation Format: Clarke R, Dixon MJ, Jin L, Turnbull A, Hu R, Zwart A, Wang Y, Xuan J, Sengupta S, Renshaw L, Sims A, Liu MC. Molecular features of dormancy in ER+ breast cancers [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-04-10.
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Affiliation(s)
- R Clarke
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - MJ Dixon
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - L Jin
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Turnbull
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - R Hu
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Zwart
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - Y Wang
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - J Xuan
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - S Sengupta
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - L Renshaw
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - A Sims
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
| | - MC Liu
- Georgetown University Medical Center, Washington, DC; University of Edinburgh, Edinburgh, Scotland, United Kingdom; Virginia Tech, Arlington, VA; Mayo Clinic, Rochester, MN
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Xuan J, Wen W, Wang Y, Wang F, Xu HB, Shao M, Yang Y, Tian YZ. Effect of Huagantongluofang, a Chinese Traditional Medicine, in Hepatic Fibrogenesis in a Mouse Model of Biliary Cirrhosis. Cell Physiol Biochem 2017; 44:368-376. [PMID: 29132130 DOI: 10.1159/000484908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 02/23/2017] [Accepted: 08/10/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Biliary cirrhosis (BC) is a chronic cholestatic liver disease, in which hepatic fibrosis is an early symptom. This study aimed to identify the biological function and the therapeutic effect of a Chinese traditional medicine, HuaGanTongLuoFang (HGTLF), in a mouse model of BC. METHODS The mice (n = 72) were randomly divided into a sham group (n =12) and BC group (n = 60). The animals in the BC group were then randomly divided into five groups (n = 12 in each) and treated with three different doses of HGTLF, ureodeoxycholic acid (UDCA), or normal saline (the model group). Four weeks later, serum and liver tissues were obtained from all the animals for analyses. Hematoxylin and eosin (H&E) staining was used to quantify the hepatic morphology, while real-time PCR and Enzyme-linked immunosorbent assay (ELISA) were used to determine the level of hepatic fibrosis-related genes. RESULTS Compared with the model group, all three doses of HGTLF improved hepatic function, as well as reducing inflammation and fibrogenesis. The best therapeutic effect was observed in the high-dose HGTLF group. Furthermore, HGTLF contributed to down-regulation of hepatic fibrosis-related genes (platelet-derived growth factor [PDGF], transforming growth factor-β [TGF-β], p38, nuclear factor-κB [NF-kB], intercellular adhesion molecular-1 [ICAM-1], and tissue inhibitor of metalloproteinase-1 [TIMP-1]). CONCLUSION The data suggested that HGTLF effectively improved liver function and the morphology of the liver tissue in a mouse model of BC, possibly via suppression of hepatic fibrosis-related signals.
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Affiliation(s)
- Ji Xuan
- Department of Gastroenterology, Nanjing, China
| | - Wei Wen
- Department of Gastroenterology, Nanjing, China
| | | | - Feng Wang
- General Surgery, Bayi Hospitial Affiliated Nanjing University of Chinese Medicine, Nanjing, China
| | - Hua-Bing Xu
- Department of Gastroenterology, Nanjing, China
| | - Mei Shao
- Department of Gastroenterology, Nanjing, China
| | - Ya Yang
- Department of Gastroenterology, Nanjing, China
| | - Yao-Zhou Tian
- Department of Gastroenterology, Affiliated Hospital of Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
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Xuan J, Feng W, An ZT, Yang J, Xu HB, Li J, Zhao ZF, Wen W. Anti-TGFβ-1 receptor inhibitor mediates the efficacy of the human umbilical cord mesenchymal stem cells against liver fibrosis through TGFβ-1/Smad pathway. Mol Cell Biochem 2017; 429:113-122. [DOI: 10.1007/s11010-017-2940-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/16/2017] [Indexed: 12/15/2022]
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Yang Y, Chen S, Yang F, Zhang L, Alterovitz G, Zhu H, Xuan J, Yang X, Luo H, Mu J, He L, Luo X, Xing Q. HLA-B*51:01 is strongly associated with clindamycin-related cutaneous adverse drug reactions. Pharmacogenomics J 2016; 17:501-505. [DOI: 10.1038/tpj.2016.61] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 06/06/2016] [Accepted: 06/15/2016] [Indexed: 01/17/2023]
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Abstract
Specific diagnostic biomarker for cholangiocarcinoma (CCA) has been lacking. This systematic review and meta-analysis was performed aiming to investigate serum MUC5AC's diagnostic performance on CCA.Studies investigating serum MUC5AC's diagnostic value on CCA were retrieved from Pubmed, Embase, and Cochrane Library. The methodology quality of included studies was assessed according to QUADAS-2. Diagnostic 2 × 2 table was extracted from each eligible study, Meta-disc 1.4 was used for statistical analysis, data synthesis was done using a random-effects model. Subgroup analyses were conducted according to region and array method.Six eligible studies were identified, a total of 1213 patients were involved in the meta-analysis. The AUC on SROC was 0.9138, and the Q* was 8463. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio (DOR) were 0.69 (95% CI: 0.65-0.73), 0.93 (95% CI: 0.91-0.95), 8.99 (95% CI: 5.65-14.30), 0.33 (95% CI: 0.24-0.46), and 33.98 (95% CI: 20.12-57.40), respectively. Targeting MUC5AC's epitope has a higher pooled sensitivity than targeting MUC5AC protein (0.77 vs 0.63). There was substantial cross-study heterogeneity.Serum MUC5AC might be potentially used as a surrogate marker in the diagnosis of CCA. However, the appropriate array method and the optimum cut-off value are yet to be decided.
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Li C, Zhang C, Wang T, Xuan J, Su C, Wang Y. Heme oxygenase 1 induction protects myocardiac cells against hypoxia/reoxygenation-induced apoptosis : The role of JNK/c-Jun/Caspase-3 inhibition and Akt signaling enhancement. Herz 2016; 41:715-724. [PMID: 27220977 DOI: 10.1007/s00059-016-4424-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 02/11/2016] [Accepted: 02/20/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Although recent studies have found that heme oxygenase (HO)-1 plays an important role in myocardiac cell survival, the precise mechanisms occurring during hypoxia/reoxygenation (H/R) injury remain unclear. Therefore, the aim of this study was to investigate the cytoprotective mechanisms of HO-1 against H/R-induced myocardiac cell apoptosis and to explore whether the Akt signaling pathway contributed to the protection provided by HO-1. METHODS Cobalt protoporphyrin (CoPP, a pharmacologic inducer of HO-1) was employed to induce the over-expression of HO-1 before H/R in H9c2 cells. Hoechst staining and flow cytometry were used to examine the extent of apoptosis. Furthermore, the effect of HO-1 on Akt, JNK, and the expression of apoptosis-related proteins (c-JUN and Caspase-3) was determined by Western blotting. RESULTS The results showed that over-expressed HO-1 could significantly protect myocardiac cells against H/R-induced apoptosis in H9c2 cells. Furthermore, the protein expression of p‑Akt increased and of p‑JNK decreased in the H/R injury H9c2 cells when treated with CoPP. The apoptosis-related proteins c‑Jun and caspase-3 were both inhibited by over-expression of HO-1. At the same time, retreatment with zinc protoporphyrin (ZnPP, a specific inhibitor of HO-1 enzymatic activity) or LY294002 (an inhibitor of Akt1) reversed the HO-1-induced changes. CONCLUSION In summary, our results suggest that HO-1 can decrease H/R-induced myocardiac cell apoptosis; the mechanism may be related to the activation of the Akt signaling pathway and, furthermore, to the inhibition of the JNK/c-Jun/caspase-3 signaling pathway.
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Affiliation(s)
- C Li
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China.
| | - C Zhang
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China
| | - T Wang
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China
| | - J Xuan
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China
| | - C Su
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China
| | - Y Wang
- Department of Cardiovascular Medicine, The Zoucheng People's Hospital, 59 Qianquan Road, 273500, Jining, Shandong, P.R. China
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Du WW, Yang W, Xuan J, Gupta S, Krylov SN, Ma X, Yang Q, Yang BB. Reciprocal regulation of miRNAs and piRNAs in embryonic development. Cell Death Differ 2016; 23:1458-70. [PMID: 26990662 DOI: 10.1038/cdd.2016.27] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 11/13/2015] [Accepted: 12/17/2015] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) and piwi-interacting RNAs (piRNAs) are two classes of small noncoding RNAs, both of which play roles in regulating tissue development. It is unknown whether these distinct classes of noncoding RNAs can regulate one another. Here we show that ectopic expression of miR-17 inhibited mouse fertility and early embryonic development. Specifically, we found that the piRNA amplification loop was repressed by miR-17-5p, leading to increased levels of transposition mutagenesis. This occurred by suppressing the amplification loop of piRNAs with an identical 5' sequence and by targeting Mili/Miwi2, an essential component of the piRNA amplification loop, and the DNA methyltransferase, Dnmt3a. We also found that increased levels of piRNAs could compete with miRNAs for target binding, resulting in increased expression of Dnmt3a and Mili. Increased Dnmt3a levels could in turn block miR-17-5p expression, while increased Mili expression could accelerate piRNA amplification and inhibit transposon generation, favoring embryonic development. We report for the first time the reciprocal regulation between miRNAs and piRNAs in mouse embryonic development.
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Affiliation(s)
- W W Du
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - W Yang
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - J Xuan
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - S Gupta
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - S N Krylov
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
| | - X Ma
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Q Yang
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - B B Yang
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
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Wang W, Wang F, Zong G, Liu R, Zhang Y, Luan Y, Xu L, Xuan J. Prognostic significance of EZH2 expression in patients with digestive cancers: a meta-analysis. Int J Clin Exp Med 2015; 8:16043-16049. [PMID: 26629110 PMCID: PMC4658999] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/06/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Enhancer of zeste 2 (EZH2), a key component of polycomb repressive complex 2 (PRC2), was of great importance in human cancer pathogenesis. Various studies examined the relationship between EZH2 overexpression with the clinical outcome in patients with digestive cancers, but yielded inconsistent results. METHODS Electronic databases updated to January 2015 were searched to find relevant studies. A meta-analysis was conducted with eligible studies which quantitatively evaluated the relationship between EZH2 overexpression and survival of patients with digestive cancers. Survival data were aggregated and quantitatively analyzed. RESULTS We performed a meta-analysis of 10 studies (n = 1,461 patients) that evaluated the correlation between EZH2 overexpression and survival in patients with digestive cancers. Combined hazard ratios suggested that EZH2 overexpression was associated with poor prognosis of overall survival (HR = 1.54, 95% CI: 1.27-1.81) in patients with esophageal cancer. In the stratified analysis, no significantly risks were found among gastric cancer (HR = 0.66, 95% CI: 0.16-1.15) and colorectal cancer (HR = 0.91, 0.63-1.19), indicating EZH2 was not an indicator of poor prognosis in gastric cancer or colorectal cancer. CONCLUSIONS EZH2 overexpression indicates a poor prognosis for patients with esophageal cancer, but not among gastric cancer or colorectal cancer.
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Affiliation(s)
- Wei Wang
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Feng Wang
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Guangquan Zong
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Renmin Liu
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Yufei Zhang
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Yang Luan
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Lin Xu
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
| | - Ji Xuan
- Department of General Surgery, The 81st hospital of P.L.A., P.L.A. cancer center Nanjing, P. R. China
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Yang F, Xuan J, Chen J, Zhong H, Luo H, Zhou P, Sun X, He L, Chen S, Cao Z, Luo X, Xing Q. HLA-B*59:01: a marker for Stevens-Johnson syndrome/toxic epidermal necrolysis caused by methazolamide in Han Chinese. Pharmacogenomics J 2015; 16:83-7. [PMID: 25918017 DOI: 10.1038/tpj.2015.25] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 02/26/2015] [Accepted: 03/02/2015] [Indexed: 11/09/2022]
Abstract
Methazolamide is an intraocular pressure-lowering drug that is used in the treatment of glaucoma and other ophthalmologic abnormalities. The use of methazolamide has been shown to cause Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) in patients of Asian ancestry. Methazolamide-induced SJS/TEN is associated with the presence of HLA-B59 serotype/HLA-B*59:01 in Korean and Japanese populations. To better understand the genetic risk factors for these adverse reactions in the Han Chinese population, we characterized the HLA class I genotypes of eight Chinese patients with methazolamide-induced SJS/TEN from 2008 to 2014. The frequency of HLA-B*59:01 was 87.5% (7/8) in the case patients, which was significantly different from 0% (0/30) in the methazolamide-tolerant patients (odds ratio (OR)=305.0; P=6.3 × 10(-7)) and 0.35% (1/283) in healthy subjects from the human major histocompatibility complex database (OR=1974.0; P=2.0 × 10(-12)). HLA-C*01:02, which is closely linked to HLA-B*59:01, had a weaker but notable association with methazolamide-induced SJS/TEN compared with the tolerant controls (OR=12.1; P=0.016) and general population (OR=15.5; P=2.0 × 10(-3)). The distribution of the HLA-B*59:01-C*01:02 haplotype was also significantly different in cases and controls. This study demonstrated a strong association between HLA-B*59:01 and methazolamide-induced SJS/TEN in the Han Chinese population for the first time. Pretherapy screening for HLA-B*59:01 would be useful to reduce the risk of methazolamide-induced SJS/TEN.
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Affiliation(s)
- F Yang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - J Xuan
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - J Chen
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - H Zhong
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - H Luo
- University of Arkansas at Little Rock/University of Arkansas for Medical Sciences Joint Bioinformatics Program, Little Rock, AR, USA
| | - P Zhou
- Center of Bioinformatics (COBI) and Key Laboratory for Neuroinformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - X Sun
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - L He
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - S Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Z Cao
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - X Luo
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Q Xing
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
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Zhang Y, Wang F, Zong G, Xu L, Xuan J. [Risk factor analysis of postoperative complications in gastric carcinoma patients complicated with liver cirrhosis]. Zhonghua Wei Chang Wai Ke Za Zhi 2015; 18:30-32. [PMID: 25656027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To analyze the risk factors of postoperative complications in gastric carcinoma patients complicated with liver cirrhosis. METHODS A retrospective research of 41 gastric cancer patients with liver cirrhosis who underwent surgical therapy was performed. The multivariate Logistic regression analysis was carried out to determine risk factors of postoperative complications. RESULTS There were no postoperative death in this cohort. Twenty-seven(65.9%) patients developed postoperative complications. As determined by the Logistic regression analysis, Child-Pugh score(OR=27.96, 95% CI:1.16-672.23), albumin level(OR=17.98, 95% CI:1.28-253.36) and intraoperative blood loss(OR=10.60, 95% CI:1.21-92.82) were independent risk factors of postoperative complications. CONCLUSION As for gastric cancer patients with liver cirrhosis, positive perioperative management, adjustment of Child-Pugh classifications score, following damage control principle during operation and reducing the intraoperative bleeding may decrease the morbidity of postoperative complications.
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Affiliation(s)
- Yufei Zhang
- Department of General Surgery, No.81 Hospital of Chinese PLA, Nanjing 210002, China.
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Xuan J, Wang L, Xuan D, Zhou Y, Hu S. Evaluation of Cost Effectiveness of OM-85 in China. Value Health 2014; 17:A779. [PMID: 27202888 DOI: 10.1016/j.jval.2014.08.366] [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: 06/05/2023]
Affiliation(s)
- J Xuan
- Fudan University, School of Public Health, Shanghai, China
| | - L Wang
- Second Military Medical University, Shanghai, China
| | - D Xuan
- Vanderbilty University, Nashville, TN, USA
| | - Y Zhou
- Shanghai Centennial Scientific Ltd, Shanghai, China
| | - S Hu
- Shanghai Bureau of Health, Shanghai, China
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Shi Q, Yin H, Xuan J, Wu Y, Cheng G. Cost Effectiveness of Sunitinib as First-Line Targeted Therapy for Metastatic Renal Cell Carcinoma in China. Value Health 2014; 17:A638. [PMID: 27202278 DOI: 10.1016/j.jval.2014.08.2294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Q Shi
- Pfizer China, Shanghai, China
| | - H Yin
- Philadelphia College of Osteopathic Medicine-Georgia Campus, Suwanee, GA, USA
| | - J Xuan
- Fudan University, School of Public Health, Shanghai, China
| | - Y Wu
- Foshan food and drug inspection testing center, Foshan City, China
| | - G Cheng
- Jinan University, Guangzhou, China
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Song R, Xuan J, Chen C, Wang M, Xie X. Questionnaire Analysis on Pharmacists Role and Drug Reimbursement List Adjustment Mechanism Under the Current China Health Insurance System. Value Health 2014; 17:A787. [PMID: 27202930 DOI: 10.1016/j.jval.2014.08.415] [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: 06/05/2023]
Affiliation(s)
- R Song
- China Pharmaceutical Research and Development Association, Beijing, China
| | - J Xuan
- Fudan University, School of Public Health, Warren, NJ, USA
| | - C Chen
- China Pharmaceutical Research and Development Association, Beijing, China
| | - M Wang
- China Pharmaceutical Research and Development Association, Beijing, China
| | - X Xie
- Pfizer China, Beijing, China
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Gu J, Xuan J, Riggins RB, Chen L, Wang Y, Clarke R. Robust identification of transcriptional regulatory networks using a Gibbs sampler on outlier sum statistic. Bioinformatics 2014. [DOI: 10.1093/bioinformatics/btu188] [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: 11/14/2022] Open
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Xuan J, Laftavi M, Soliman K, Shen L, Arabi Z, Ambrus J, Pankewycz O. The B Cell Growth Factor Interleukin 14 (IL14): A Potential Biomarker for Immune Activation and Mediator of De Novo DSA After Renal Transplantation. Transplantation 2014. [DOI: 10.1097/00007890-201407151-03066] [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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Luan Y, Zong GQ, Chen J, Xuan J, Xu L, Wang W, Wang F, Liu XS. Surgical treatment of Crohn's disease: an analysis of 19 cases. Shijie Huaren Xiaohua Zazhi 2011; 19:1851-1854. [DOI: 10.11569/wcjd.v19.i17.1851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the diagnosis, surgical treatment and postoperative maintenance therapy of Crohn's disease.
METHODS: The clinical data for 19 patients with surgically and pathological proven Crohn's disease were analyzed retrospectively, including clinical manifestations, preoperative examination and diagnosis, intraoperative performance and diagnosis, and postoperative complications and maintenance therapy.
RESULTS: The rate of misdiagnosis of Crohn's disease was high. Only 3 patients were definitively diagnosed before operation, and the misdiagnosis rate was 84.21%. Crohn's disease showed atypical clinical manifestations. The symptoms of Crohn's disease were mainly abdominal pain and gastrointestinal tract symptoms. All patients had varying degrees of abdominal pain. Symptoms were related to diseased region. Emergency surgery was performed in 3 (15.79%) cases, and elective operation in 16 (84.21%) cases. Reoperation was performed in 4 (21.05%) patients. Postoperative incision infection occurred in 2 cases, fat liquefaction of incision in 2 cases, and death in 1 case. The rate of postoperative complications was 26.32%. Postoperative maintenance of remission appeared in 12 (63.16%) cases, of which effective results were achieved in 5 cases and recrudescence occurred in 1 case.
CONCLUSION: The rate of misdiagnosis of Crohn's disease is high, mainly due to atypical clinical manifestations in the early period of the disease. Surgery can lead not only to a cure for the disease but also to verification of diagnosis. Surgical treatment can solve associated complications and improve patient's quality of life. Postoperative maintenance drug therapy can reduce recrudescence.
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Guo L, Luo X, Zhao A, Huang H, Wei Z, Chen L, Qin S, Shao L, Xuan J, Feng G, Minghua C, Luan J, He L, Xing Q. A novel heterozygous nonsense mutation of keratin 5 in a chinese family with Dowling-Degos disease. J Eur Acad Dermatol Venereol 2011; 26:908-10. [DOI: 10.1111/j.1468-3083.2011.04115.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Matsson P, Yee SW, Markova S, Morrissey K, Jenkins G, Xuan J, Jorgenson E, Kroetz DL, Giacomini KM. Discovery of regulatory elements in human ATP-binding cassette transporters through expression quantitative trait mapping. Pharmacogenomics J 2011; 12:214-26. [PMID: 21383772 PMCID: PMC3325368 DOI: 10.1038/tpj.2011.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
ATP-Binding Cassette (ABC) membrane transporters determine the disposition of many drugs, metabolites and endogenous compounds. Coding region variation in ABC transporters is the cause of many genetic disorders, but much less is known about the genetic basis and functional outcome of ABC transporter expression level variation. We used genotype and mRNA transcript level data from human lymphoblastoid cell lines to assess population and gender differences in ABC transporter expression, and to guide the discovery of genomic regions involved in transcriptional regulation. Nineteen of 49 ABC genes were differentially expressed between individuals of African, Asian and European descent suggesting an important influence of race on expression level of ABC transporters. Twenty-four significant associations were found between transporter transcript levels and proximally located genetic variants. Several of the associations were experimentally validated in reporter assays. Through influencing ABC expression levels, these SNPs may affect disease susceptibility and response to drugs.
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Affiliation(s)
- P Matsson
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
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Meng J, Xuan J, Qiao X, Li X, Liu S, Lukat K, Zhang N, Bachert C. Assessment of Sleep Impairment in Persistent Allergic Rhinitis Patients Using Polysomnography. Int Arch Allergy Immunol 2011; 155:57-62. [DOI: 10.1159/000317244] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Accepted: 06/16/2010] [Indexed: 11/19/2022] Open
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Du J, Zhang A, Wang L, Xuan J, Yu L, Che R, Li X, Gu N, Lin Z, Feng G, Xing Q, He L. Relationship between response to risperidone, plasma concentrations of risperidone and CYP3A4 polymorphisms in schizophrenia patients. J Psychopharmacol 2010; 24:1115-20. [PMID: 19395426 DOI: 10.1177/0269881109104932] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, we examined the relationships between plasma concentrations of risperidone and 9-hydroxyrisperidone and polymorphisms of CYP3A4. All 130 schizophrenia patients (45 men, 85 women, age 15-60 years) who met DSM-IV criteria were given risperidone for 8 weeks. Clinical efficacy was determined using the Positive and Negative Syndrome Scale (PANSS). CYP3A4*1G was found to be associated with the change in total PANSS scores (Kruskal-Wallis test, P = 0.021), which was not significant on adjusting for multiple testing. Our study has, for the first time, conducted a genetic association study of the CYP3A4 gene with risperidone response. Further studies on larger groups and on the effects of the longer term risperidone treatment are needed to confirm these results.
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Affiliation(s)
- J Du
- Bio-X Center, Shanghai JiaoTong University, Shanghai, China, Shanghai Institute of Planned Parenthood Research, Shanghai, China
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Liu MC, Zhang B, Xiong J, Zwart A, Xuan J, Wang Y, Clarke R. Time-dependent gene expression changes in a xenograft model of docetaxel cytotoxicity. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-2009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #2009
Background: The antitumor effects of docetaxel primarily result from mitotic arrest with impaired cell proliferation. However, the key molecular pathways affected by this agent are largely unknown, and alternative mechanisms of action are likely. Knowledge of these pathways and mechanisms will guide the rational design of more effective treatment schedules and drug combinations. We hypothesize that the molecular analysis of treated human breast cancer xenografts will allow for an evaluation of time-dependent alterations in the expression of genes involved in key cell processes related to docetaxel cytotoxicity.
 Methods: Gene expression profiles were generated from MDA-MB-231 breast cancer xenografts after a single intravenous dose of docetaxel. Tumors were harvested at 1, 6, 12, and 24 hours (hr) after drug administration; a control group of untreated tumors (0hr) was included. RNA was extracted, assessed for concentration and quality, and used to generate probes for hybridization to the Affymetrix Human U133A oligonucleotide gene chip. Gene expression levels were explored with MAS 5.0 software and in-house algorithms. Subsequent data analysis included cross-experiment normalization, differential gene selection, gene clustering, and peak-time latency analysis. Consistency between the in-house in vivo dataset and a public in vitro dataset (Oncogene. 26:2902) was investigated.
 Results: 5087 responsive genes were selected using both SAM and EDGE. Among these genes, 3009 were down-regulated and 190 were up-regulated by at least 2-fold. Compared with 0h, the most significant changes in gene expression took place 6h after drug administration (2023 down-regulated and 655 up-regulated genes). Gene clustering revealed the sequence of up-regulation or down-regulation of different gene groups. Apoptosis-related genes and cell cycle-related genes in various stages showed different time latency patterns. For example, most of the M phase genes (total of 65 from Gene Ontology) were down-regulated 6h and 12h after docetaxel treatment and recovered by 24h. In addition, 1489 of 3009 down-regulated genes and 55 of 190 up-regulated genes were found in a public in vitro dataset; these datasets share 282 down-regulated genes (18.9%) and 17 up-regulated genes (30.9%).
 Discussion: Analysis of serial gene expression changes in docetaxel sensitive breast cancer xenografts demonstrates that time-dependent changes in specific cell processes occur. These findings will be expanded to distinguish between early and late molecular mechanisms of docetaxel responsiveness. A parallel xenograft model of docetaxel nonresponsiveness is also under investigation. In this way, time-dependent pathways will be defined that will include predictive biomarkers and lead to the development of novel agents to overcome resistance or enhance sensitivity to docetaxel, one of the most effective agents available for the treatment of breast cancer.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 2009.
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Affiliation(s)
- MC Liu
- 1 Dept of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - B Zhang
- 2 Dept of Electrical, Computer, and Biomedical Engineering, Virginia Polytechnic Institute and State University, Arlington, VA
| | - J Xiong
- 2 Dept of Electrical, Computer, and Biomedical Engineering, Virginia Polytechnic Institute and State University, Arlington, VA
| | - A Zwart
- 1 Dept of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - J Xuan
- 2 Dept of Electrical, Computer, and Biomedical Engineering, Virginia Polytechnic Institute and State University, Arlington, VA
| | - Y Wang
- 2 Dept of Electrical, Computer, and Biomedical Engineering, Virginia Polytechnic Institute and State University, Arlington, VA
| | - R Clarke
- 1 Dept of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
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Du J, Duan S, Wang H, Chen W, Zhao X, Zhang A, Wang L, Xuan J, Yu L, Wu S, Tang W, Li X, Li H, Feng G, Xing Q, He L. Comprehensive analysis of polymorphisms throughout GAD1 gene: a family-based association study in schizophrenia. J Neural Transm (Vienna) 2008; 115:513-9. [DOI: 10.1007/s00702-007-0844-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Accepted: 10/01/2007] [Indexed: 12/29/2022]
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Menzin J, Brown J, Guadagno L, Friedman M, Kitch B, Marton J, Best C, Boulanger L, Xuan J. CARE-SEEKING BEHAVIOR AMONG SUBJECTS WITH EARLY CHRONIC OBSTRUCTIVE LUNG DISEASE IDENTIFIED THROUGH A COMMUNITY SPIROMETRY SCREENING PROGRAM: FINDINGS FROM THE RESPIRATORY HEALTH PROMOTION STUDY (RHPS). Chest 2006. [DOI: 10.1378/chest.130.4_meetingabstracts.170s-a] [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: 11/01/2022] Open
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Parry R, Schneider D, Hudson D, Parkes D, Xuan J, Harkins R, Lin R, Alicke B, Dinter H, Parry G. 293 Identification of a novel prostate tumor target, RG-1, for antibody based therapy of prostate cancer. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80301-x] [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: 10/26/2022] Open
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48
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Wang Y, Adali T, Xuan J, Szabo Z. Magnetic resonance image analysis by information theoretic criteria and stochastic site models. IEEE Trans Inf Technol Biomed 2001; 5:150-8. [PMID: 11420993 DOI: 10.1109/4233.924805] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Quantitative analysis of magnetic resonance (MR) images is a powerful tool for image-guided diagnosis, monitoring, and intervention. The major tasks involve tissue quantification and image segmentation where both the pixel and context images are considered. To extract clinically useful information from images that might be lacking in prior knowledge, we introduce an unsupervised tissue characterization algorithm that is both statistically principled and patient specific. The method uses adaptive standard finite normal mixture and inhomogeneous Markov random field models, whose parameters are estimated using expectation-maximization and relaxation labeling algorithms under information theoretic criteria. We demonstrate the successful applications of the approach with synthetic data sets and then with real MR brain images.
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Affiliation(s)
- Y Wang
- Department of Electrical Engineering and Computer Science, Catholic University of America, Washington, DC 20064, USA.
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Panzarino PJ, Xuan J. Economic evaluation of major selective serotonin-reuptake inhibitors in a managed care population. Manag Care Interface 2001; 14:59-65. [PMID: 11339023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
This study evaluated pharmaceutical charges and economic outcomes related to therapy with the three leading selective serotonin-reuptake inhibitors. Patient treatment episodes of major depression occurring between July 1, 1995 and June 30, 1996 were included for analysis (patient age range, 18-64 yr). Results showed no significant differences among direct and related medical charges for fluoxetine, paroxetine, and sertraline. Direct and related pharmaceutical charges were significantly lower for paroxetine and sertraline compared with fluoxetine. The higher drug charges observed for fluoxetine resulted in higher total treatment charges compared with paroxetine and sertraline.
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Affiliation(s)
- P J Panzarino
- Department of Psychiatry and Mental Health, Cedars-Sinai Medical Center, Los Angeles, USA
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Xuan J, Adali T, Wang Y, Siegel E. Automatic detection of foreign objects in computed radiography. J Biomed Opt 2000; 5:425-431. [PMID: 11092430 DOI: 10.1117/1.1289771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/1999] [Revised: 06/15/2000] [Accepted: 07/06/2000] [Indexed: 05/23/2023]
Abstract
This paper presents an effective two-step scheme for automatic object detection in computed radiography (CR) images. First, various structure elements of the morphological filters, designed by incorporating available morphological features of the objects of interest including their sizes and rough shape descriptions, are used to effectively distinguish the foreign object candidates from the complex background structures. Second, since the boundaries of the objects are the key features in reflecting object characteristics, active contour models are employed to accurately outline the morphological shapes of the suspicious foreign objects to further reduce the rate of false alarms. The actual detection scheme is accomplished by jointly using these two steps. The proposed methods are tested with a database of 50 hand-wrist computed radiographic images containing various types of foreign objects. Our experimental results demonstrate that the combined use of morphological filters and active contour models can provide an effective automatic detection of foreign objects in CR images achieving good sensitivity and specificity, and the accurate descriptions of the object morphological characteristics.
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Affiliation(s)
- J Xuan
- University of Maryland Baltimore County, Department of Computer Science and Electrical Engineering, Baltimore, Maryland 21250, USA.
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