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Ye G, Xu X, Xue Z, Li Z, Liu X. Reducing the risk of tooth injury in anterior maxillary interdental osteotomy for cleft lip and palate patients using a surgical navigation technique. Int J Oral Maxillofac Surg 2024; 53:368-375. [PMID: 37805371 DOI: 10.1016/j.ijom.2023.09.009] [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: 07/30/2022] [Revised: 09/07/2023] [Accepted: 09/25/2023] [Indexed: 10/09/2023]
Abstract
The aim of this study was to investigate the clinical feasibility of preventing tooth injury from anterior maxillary interdental osteotomy by using a surgical navigation technique. A retrospective review was conducted on cleft lip and palate patients treated with anterior maxillary osteotomy followed by distraction osteogenesis between August 2019 and May 2022. Patients operated on through image guidance were enrolled in the navigation group, while those who were operated on freehand were enrolled in the freehand group. Tooth injuries were identified on postoperative images. Linear and angular deviations of the osteotomy line were measured. Twelve patients were enrolled in the study, seven in the navigation group and five in the freehand group. Altogether, 24 osteotomy lines and 53 adjacent teeth were evaluated. The dental injury rate was 3% in the navigation group and 27% in the freehand group (P = 0.016). The average linear deviations (mean ± standard deviation) were 0.67 ± 0.30 mm and 2.05 ± 1.33 mm, respectively (P < 0.001), while the average angular deviations were 1.67 ± 0.68° and 11.41 ± 7.46°, respectively (P < 0.001). The results suggest that navigation was able to reduce the tooth injury risk compared with freehand interdental osteotomies in crowded dental arches.
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Affiliation(s)
- G Ye
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Xu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z Xue
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Liu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
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Li X, Qi S, Li W, Liu X, Xue Z, Yu T, Xun G. Cohen syndrome combined with psychiatric symptoms: a case report. BMC Psychiatry 2024; 24:180. [PMID: 38439002 PMCID: PMC10913230 DOI: 10.1186/s12888-024-05626-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 02/19/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Cohen syndrome (CS) is a rare autosomal recessive inherited condition characterized by pathological changes affecting multiple systems. The extensive clinical variability associated with CS poses a significant diagnostic challenge. Additionally, there is limited documentation on the co-occurrence of CS with psychiatric symptoms. CASE REPORT We report a case of a 30-year-old patient exhibiting characteristic physical features and psychiatric symptoms. Whole exome sequencing identified two heterozygous variants, a nonsense variation c.4336 C > T and a missense mutation c.4729G > A. Integrating clinical manifestations with genetic test results, we established the diagnosis of CS combined with psychiatric symptoms. CONCLUSIONS This case introduces a novel missense variant as a candidate in the expanding array of VPS13B pathogenic variants. Its clinical significance remains unknown, and further investigation may broaden the spectrum of pathogenic variants associated with the VPS13B gene. Early diagnosis of CS is crucial for the prognosis of young children and holds significant importance for their families.
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Affiliation(s)
- Xinming Li
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China
| | - Sufang Qi
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China
| | - Wenjie Li
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China
| | - Xin Liu
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China
| | - Zhicheng Xue
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China
| | - Tiangui Yu
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China.
| | - Guanglei Xun
- Shandong Mental Health Center, Shandong University, Mail Code: 250014, 49# Wenhua Eastern Road, Jinan, Shandong Province, P.R. China.
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Chang JHM, Xue Z, Bauer J, Wehle B, Hendrix DA, Catalano T, Hurowitz JA, Nekvasil H, Demple B. Artificial Space Weathering to Mimic Solar Wind Enhances the Toxicity of Lunar Dust Simulants in Human Lung Cells. Geohealth 2024; 8:e2023GH000840. [PMID: 38312735 PMCID: PMC10835080 DOI: 10.1029/2023gh000840] [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] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 02/06/2024]
Abstract
During NASA's Apollo missions, inhalation of dust particles from lunar regolith was identified as a potential occupational hazard for astronauts. These fine particles adhered tightly to spacesuits and were unavoidably brought into the living areas of the spacecraft. Apollo astronauts reported that exposure to the dust caused intense respiratory and ocular irritation. This problem is a potential challenge for the Artemis Program, which aims to return humans to the Moon for extended stays in this decade. Since lunar dust is "weathered" by space radiation, solar wind, and the incessant bombardment of micrometeorites, we investigated whether treatment of lunar regolith simulants to mimic space weathering enhanced their toxicity. Two such simulants were employed in this research, Lunar Mare Simulant-1 (LMS-1), and Lunar Highlands Simulant-1 (LHS-1), which were added to cultures of human lung epithelial cells (A549) to simulate lung exposure to the dusts. In addition to pulverization, previously shown to increase dust toxicity sharply, the simulants were exposed to hydrogen gas at high temperature as a proxy for solar wind exposure. This treatment further increased the toxicity of both simulants, as measured by the disruption of mitochondrial function, and damage to DNA both in mitochondria and in the nucleus. By testing the effects of supplementing the cells with an antioxidant (N-acetylcysteine), we showed that a substantial component of this toxicity arises from free radicals. It remains to be determined to what extent the radicals arise from the dust itself, as opposed to their active generation by inflammatory processes in the treated cells.
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Affiliation(s)
- J H M Chang
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - Z Xue
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - J Bauer
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - B Wehle
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - D A Hendrix
- Department of Geosciences Stony Brook University Stony Brook NY USA
- National High Magnetic Field Laboratory Florida State University Tallahassee FL USA
| | - T Catalano
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - J A Hurowitz
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - H Nekvasil
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - B Demple
- Departments of Pharmacological Sciences and of Radiation Oncology Renaissance School of Medicine Stony Brook University Stony Brook NY USA
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Mi Y, Xue Z, Qu S, Yin Y, Huang J, Kou R, Wang X, Luo S, Li W, Tang Y. The economic burden of coronary heart disease in mainland China. Public Health 2023; 224:140-151. [PMID: 37797560 DOI: 10.1016/j.puhe.2023.08.034] [Citation(s) in RCA: 1] [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: 02/15/2023] [Revised: 07/06/2023] [Accepted: 08/25/2023] [Indexed: 10/07/2023]
Abstract
OBJECTIVES The aim of this study was to systematically evaluate the current economic burden of coronary heart disease (CHD) in mainland China and provide a reference for the formulation of policies to reduce the economic burden of CHD. STUDY DESIGN A systematic literature review was conducted of empirical studies on the economic burden of CHD over the past 20 years. METHODS PubMed, Web of Science, Embase, China Knowledge Resource Integrated Database and the WANFANG database were comprehensively searched for relevant articles published between 1 January 2000 and 22 December 2021. Content analysis was used to extract the data, and Stata 17.0 software was used for analysis. The median values were used to describe trends. RESULTS A total of 35 studies were included in this review. The annual median per-capita hospitalisation expense and the average expense per hospitalisation were $3544.40 ($891.64-$18,371.46) and $5407.34 ($1139.93-$8277.55), respectively. The median ratio on medical consumables expenses, drug expenses, medical examination expenses and treatment expenses were 41.59% (12.40%-63.73%), 26.90% (7.30%-60.00%), 9.45% (1.65%-33.40%) and 10.10% (2.36%-66.00%), respectively. The median per-capita hospitalisation expense in the eastern, central and western regions were $9374.45 ($2056.13-$18,371.46), $4751.5 ($2951.95-$8768.93) and $3251.25 ($891.64-$13,986.38), respectively. The median average expense per hospitalisation in the eastern and central regions were $6177.15 ($1679.15-$8277.55) and $1285.49 ($1239.93-$2197.36), respectively. The median average length of stay in the eastern, central and western regions were 9.3 days, 15.2 days and 16.1 days, respectively. CONCLUSIONS The economic burden of CHD is more severe in mainland China than in developed countries, especially in terms of the direct economic burden. In terms of the types of direct medical expenses, a proportion of medical examination expenses, treatment expenses and drug expenses were lowest in the eastern region, but medical consumables expenses were the highest in this region. This study provides guidance for the formulation of policies to reduce the economic burden of CHD in mainland China.
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Affiliation(s)
- Y Mi
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - Z Xue
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - S Qu
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - Y Yin
- Qingdao Stomatological Hospital, Qingdao, PR China
| | - J Huang
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - R Kou
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - X Wang
- Personnel Department, Weifang Medical University, Weifang, PR China
| | - S Luo
- School of Management, Weifang Medical University, Weifang, PR China
| | - W Li
- School of Public Health, Weifang Medical University, Weifang, PR China.
| | - Y Tang
- School of Public Health, Weifang Medical University, Weifang, PR China.
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Zhao M, Zhang X, Wang F, Hu X, Xue Z, Yue J, Chen M. A Multiomics Analysis of the Close Connection between Intratumoral Microbiota and Immune Cell Infiltration in Colorectal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e358. [PMID: 37785232 DOI: 10.1016/j.ijrobp.2023.06.2442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The colorectal intratumoral microbiome and its association with the expression of the tumor genome and immune cell infiltration remain poorly characterized. Our study aims to investigate the relationship between intratumoral microbiota with tumor immune infiltration, patient prognosis, and potential downstream signaling pathways. MATERIALS/METHODS We collected biopsy samples of tumor tissue and paracancerous tissue from 92 patients with colorectal cancer, and acquired microbiota profiling in these samples using 16s rRNA sequencing. Meanwhile, the immune markers including CD8, FOXP3, CD163, PD-1 and PD-L1 were stained by immunohistochemistry (IHC) to identify the immune infiltration in tumors. Furthermore, we used The Cancer Genome Atlas and The Cancer Microbiome Atlas databases to conduct multiomics analysis on tumor flora and patient survival, tumor gene expression profile and potential downstream pathways. RESULTS There was a significant difference in α-diversity (p = 0.00051) and β-diversity (p = 0.004) between tumor and paracancerous tissues. The β-diversity of intratumoral bacterial differed by colorectal cancer tumor stage (early vs. late stage, p = 0.049) and location (left vs. right colon, p = 0.04). Stage-related flora cluster (Porphyromonas, Lachnoclostridium, Bacteroides, Aggregatibacter, and Hungatella) were identified and found to be associated with poor prognosis in colorectal cancer patients (HR = 1.79, p = 0.015). By IHC staining, we found that expression of PD-1 and FOXP3 was significantly reduced at low abundance of stage-related bacterial cluster (p<0.05). Among of them, Hungatella was negatively associated with CD8+T cell infiltration (p<0.05) in tumor. Besides, tumor-location related flora cluster (Bacteroides and Blautia) were identified and found to be associated with good prognosis in colorectal cancer patients (HR = 0.52, p = 0.011). Expression of CD163 was decreased at high abundance of location-related bacterial cluster (p<0.05). Among of them, Blautia was negatively correlated with tumor-associated macrophage infiltration(p<0.05). Furthermore, we found that the stage-related flora cluster was positively connected with the pathway of bile acid metabolism, whereas the location-dependent cluster was negatively correlated with this pathway. CONCLUSION We found specific intratumoral bacterial clusters that were related to tumor stage and location, and the clusters were strongly associated with tumor immune infiltration and patient prognosis. Our findings may provide new viewpoint for future research between intratumoral microbiota, metabolism pathway and tumor microenvironment.
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Affiliation(s)
- M Zhao
- Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - X Zhang
- Shandong Cancer Hospital and Institute, Jinan, Shandong, China
| | - F Wang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - X Hu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Z Xue
- Department of Radiation Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - J Yue
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - M Chen
- Department of Endoscopy, Shandong Cancer Hospital and Institute, Jinan, China
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Zhang X, Xue Z, Yue J. Perturbation of Gut Microbiota Modulated the Abscopal Effects of Immunoradiotherapy in Rectal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e357-e358. [PMID: 37785231 DOI: 10.1016/j.ijrobp.2023.06.2440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The abscopal effect-the regression of malignancies outside the irradiation zone-can be increased by combining radiotherapy (RT) with immunotherapy. In this study, we aimed to investigate whether the gut microbiota affected the abscopal effect following immunoradiotherapy (iRT) in rectal cancer. MATERIALS/METHODS Bilateral MC38 subcutaneous tumors (primary and abscopal tumor) were established in C57/B6 mice with or without oral antibiotic treatment (preadministration of vancomycin, streptomycin, and ampicillin 14 days before therapy). Mice with or without antibiotic therapy were then randomized into eight groups to receive one of four treatments: (1) RT to the primary tumor + anti-PD-1 therapy (iRT), (2) RT to the primary tumor (RT), (3) anti-PD-1 therapy (anti-PD-1), and (4) no treatment. Flow cytometry was used to determine the composition and function of immune cells in the primary and abscopal tumors as well as in the spleen. 16S rRNA sequencing was used to assess the gut microbiome alteration following antibiotic intervention. Multiple bioinformatics were then explored to investigate the impact of specific flora that related to abscopal antitumor effect. RESULTS We found that radiation on primary tumors exhibited cytotoxic effect in nonirradiated (abscopal) tumors (p=0.0057, RT vs. untreated group; p=0.0037, iRT vs. anti-PD-1 group). In contrast, abscopal tumors were resistant to the anticancer effects of RT when antibiotics were given (p=0.5374, RT + antibiotics vs. untreated group + antibiotics; p=0.42, iRT + antibiotics vs. anti-PD-1 + antibiotics group). Comparing the RT+antibiotics group to the RT group, we discovered that the number of CD8+CD44+ T cells decreased significantly in both abscopal tumors (p<0.001) and spleens (p=0.0061). In anti-PD-1-treated groups, antibiotics significantly reduced the number of CD8+GranzymeB+ T cells in primary tumors (p=0.0061) and CD4+CD25+ T cells in spleens (p<0.001). In iRT-treated groups, the antibiotic reduced the fraction of CD4+INF-γ+ cells in abscopal tumors (p=0.0134), and increased the number of CD4+PD-1+ T cells in spleens (p<0.001). Moreover, we found that both α- and β-diversity decreased significantly in the gut microbiota after antibiotic treatment (p=0.0079 and p<0.001, respectively). The abundance of g_Alistipes, g_Lactobacillus, g_Lachnospiraceae and g__Lactobacillus fell dramatically in the presence of antibiotics. In addition, functional analyses of Picrust2 and KEGG revealed that antibiotic therapy had the most profound impact on the D-Alanine metabolism pathway (p<0.001). CONCLUSION We found that the alteration of the gut microbiome by antibiotics significantly affects the local and systemic antitumoral effect of iRT, our results may provide new insight on how gut modification converts the local anticancer effects of RT into a systemic response that targets metastatic tumors.
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Affiliation(s)
- X Zhang
- Shandong Cancer Hospital and Institute, Jinan, Shandong, China
| | - Z Xue
- Department of Radiation Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - J Yue
- Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
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Hu X, Zhao M, Xue Z, Zhu Z, Yu J, Yue J. PARP Inhibitor Plus Radiotherapy Reshapes IDH1 Mutation Tumor Immune Suppression Microenvironment Potentiating the Efficiency of Immune Checkpoint Inhibitor. Int J Radiat Oncol Biol Phys 2023; 117:S159. [PMID: 37784398 DOI: 10.1016/j.ijrobp.2023.06.586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Isocitrate dehydrogenase 1 (IDH1) mutations confer gain-of-function activity by converting α-ketoglutarate (α-KG) to the oncometabolite D-2-hydroxyglutarate (D-2HG). IDH mutant tumors have fewer tumor-infiltrating CD8+ T cells and reduced PD-L1 expression compared with their wild type (WT) counterparts. In addition, 2-HG can directly inhibit the killing and proliferative functions of CD8+ T lymphocytes, and suggesting that 2-HG promotes an immunosuppressive TME. Several studies have shown that 2-HG can inhibit homologous recombination (HR) and weaken the DNA damage response (DDR), making them more sensitive to poly (ADP-ribose) polymerase (PARP) inhibitors and radiotherapy (RT). At the same time, RT and PARP inhibition (PARPi) have been considered to be a new direction to stimulate antitumor immunity. Therefore, our study intends to use RT + PARPi to reverse the immunosuppressive microenvironment caused by IDH1 mutations, thereby promoting the therapeutic effect of immune checkpoint inhibitors. MATERIALS/METHODS We compared the immune responses of clinical tissue samples and TCGA data from either IDH1mut or IDH1WT low-grade gliomas. We then established IDH1mut-overexpressing MC38 and GL261 cell lines to determine the antitumor effect of RT + PARPi. Apoptosis and immunogenic death markers were detected by flow cytometry, western blot (WB) and ELISA in these cell lines. Tumor growth and mouse survival curves were observed in both an MC38 subcutaneous and GL261 orthotopic tumor model. Changes in the composition of the immune microenvironment were assessed using flow cytometry. The mechanisms underpinning these compositional shifts were then further interrogated using various techniques, including WB, immunofluorescence, qRT-PCR, CRISPR/Cas9, and CD8+ T cell migration experiments. RESULTS We observed that CD8+ T cell infiltration and expression of the chemokines CXCL10 and CCL5 of CD8+ T cells in IDH1mut tumors were significantly downregulated by immunohistochemistry and TCGA analysis. Gene enrichment analysis using the TCGA database found that IDH1 mutations downregulated interferon (IFN)-related signaling pathways. RT + PARPi induces more DNA damage and actives the CGAS-STING pathway compared with monotherapy, leading to more expression of IFN-β, CXCL10 and CCL5 at mRNA and protein level. In the MC38 subcutaneous tumor model, we found that RT + PARPi increased the infiltration of CD8+ T cells while enhancing the killing function of CD8+ T cells. We observed these same effects in the GL261 orthoma model, as well as increased proliferation function of CD8+ T cells. In addition, RT + PARPi increased the expression of PD-L1 and enhanced the therapeutic effect of immune checkpoint inhibitors. CONCLUSION RT + PARPi reshapes the IDH1mut tumor immune suppression microenvironment, thereby potentiating the antitumor effect and efficiency of immune checkpoint inhibitor.
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Affiliation(s)
- X Hu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - M Zhao
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Z Xue
- Department of Radiation Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Z Zhu
- Weifang Medical University, Weifang, Shandong, China
| | - J Yu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - J Yue
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Liang J, Xue Z, Li X. [Epidemiological characteristics of imported malaria cases after malaria elimination in Yixing City of Jiangsu Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:294-298. [PMID: 37455103 DOI: 10.16250/j.32.1374.2023028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
OBJECTIVE To analyse the epidemiological characteristics of imported malaria cases after malaria elimination in Yixing City, Jiangsu Province, so as to provide reference for malaria prevention and control in grassroots healthcare institutions. METHODS All data pertaining to malaria cases reported in Yixing City from 2016 to 2022 were retrieved from Chinese Disease Control and Prevention Information System, and the data pertaining to vector monitoring and human malaria parasite infections from 2016 to 2022 were collected for a descriptive statistical analysis. RESULTS A total of 14 imported malaria cases were reported in Yixing City from 2016 to 2022, including 12 cases with Plasmodium falciparum malaria, one case with P. vivax malaria and one case with P. ovale malaria, and all cases acquired infections in Africa and then returned to Yixing City. Malaria cases were reported across 2016 to 2022 except in 2020 and 2021. Malaria cases were predominantly reported during the period between December and February of the next year, and workers were the predominant occupation. The institutions where malaria was initially diagnosed included county-level general hospitals, county-level disease prevention and control institutions and grassroots healthcare centers, and there were 10 cases with definitive diagnosis of malaria on the day of initial diagnosis, with a 64.29% (9/14) correct rate of initial diagnosis. There were 5 cases diagnosed with severe malaria, and the standardized response rate was 100.00% following the "1-3-7" surveillance and response strategy. Of all malaria vectors, only Anopheles sinensis was monitored in Yixing City from 2016 to 2022, and all humans were tested negative for blood smears exceptimportedmalariacases. CONCLUSIONS The correct rate of initial malaria diagnosis was not high in healthcare institutions in Yixing City from 2016 to 2022, and there are still multiple challenges for prevention of re-establishment of imported malaria.
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Affiliation(s)
- J Liang
- Yixing Center for Disease Control and Prevention, Yixing, Jiangsu 214200, China
| | - Z Xue
- Yixing Center for Disease Control and Prevention, Yixing, Jiangsu 214200, China
| | - X Li
- Yixing Center for Disease Control and Prevention, Yixing, Jiangsu 214200, China
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Xue Z, Qi P, Yan Z, Pei Q, Zhong J, Zhan Q. Mechanical Properties and Crack Resistance of Basalt Fiber Self-Compacting High Strength Concrete: An Experimental Study. Materials (Basel) 2023; 16:4374. [PMID: 37374559 DOI: 10.3390/ma16124374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/03/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
Pure self-compacting concrete has many disadvantages, such as early shrinkage and cracking. The addition of fibers can effectively improve the properties of resistance to tension and cracking of self-compacting concrete, thereby the effect of improving its strength and toughness can be achieved. Basalt fiber is a "new green industrial material" that has unique advantages, such as high crack resistance and being lightweight compared with other fiber materials. In order to study the mechanical properties and crack resistance of basalt fiber self-compacting high-strength concrete intensively, the self-compacting high-strength concrete of C50 was designed and obtained using the absolute volume method with multiple proportions. Orthogonal experimental methods were used to study the influence of the water binder ratio, fiber volume fraction, fiber length, and fly ash content on the mechanical properties of the basalt fiber self-compacting high-strength concrete. Meanwhile, the efficiency coefficient method was used to determine the best experiment plan (water binder ratio 0.3, fiber volume ratio 0.2%, fiber length 12 mm, fly ash content 30%), and the effect of fiber volume fraction and fiber length on the crack resistance of the self-compacting high-performance concrete was investigated using improved plate confinement experiments. The results show that (1) the water binder ratio had the greatest impact on the compressive strength of basalt fiber self-compacting high-strength concrete, and as the fiber volume fraction increased, the splitting tensile strength and flexural strength both increased; (2) there was an optimal value for the effect of the fiber length on the mechanical properties; (3) with the increase in fiber volume fraction, the total crack area of the fiber self-compacting high-strength concrete significantly decreased. When the fiber length increased, the maximum crack width first decreased and then slowly increased. The best crack resistance effect was achieved when the fiber volume fraction was 0.3% and the fiber length was 12 mm. Therefore, basalt fiber self-compacting high-strength concrete can be widely used in engineering fields, such as national defense construction, transportation, and building structure reinforcement and repair, due to its excellent mechanical and crack resistance properties.
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Affiliation(s)
- Zhicheng Xue
- College of Architecture and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- College of Architecture and Engineering, Heilongjiang University of Science and Technology, Harbin 150020, China
| | - Pengfei Qi
- College of Architectural Engineering, Dalian University, Dalian 116622, China
| | - Ziran Yan
- College of Architecture and Engineering, Heilongjiang University of Science and Technology, Harbin 150020, China
| | - Qiang Pei
- College of Architectural Engineering, Dalian University, Dalian 116622, China
| | - Jintu Zhong
- College of Architecture and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Qinjian Zhan
- College of Architecture and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
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Pei Q, Cai B, Xue Z, Ding Y, Cui D, Guo Y. Study on mechanical properties of corroded concrete columns strengthened with SMA wires. PLoS One 2023; 18:e0276280. [PMID: 36745617 PMCID: PMC9901767 DOI: 10.1371/journal.pone.0276280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/03/2022] [Indexed: 02/07/2023] Open
Abstract
Ocean crossing bridges suffer from seawater corrosion all year round and their mechanical properties will be substantially diminished. In order to enhance the mechanical properties of reinforced concrete columns corroded by seawater, SMA wire is used to restrain the reinforced concrete columns corroded by seawater to study their mechanical properties. 14 specimens were produced through the test, and the natural seawater corrosion was simulated by preparing a certain concentration of synthetic seawater. The mechanical properties of SMA strengthened specimens and unreinforced specimens are compared and analyzed, including failure mode, hysteresis curve, bearing capacity, ductility, stiffness and energy dissipation; the effects of different synthetic seawater corrosion concentrations on the mechanical properties of reinforced concrete columns are discussed. The results show that the bearing capacity and stiffness of reinforced concrete columns subjected to synthetic seawater corrosion are substantially diminished than those of uncorroded specimens, and the bearing capacity of specimens decreases more with the increase of synthetic seawater corrosion concentration; synthetic seawater corrosion has obscure effect on the ductility and energy dissipation performance of the specimens. The mechanical properties of the corroded specimens strengthened with SMA wire have been substantially enhanced, particularly the energy dissipation performance and bearing capacity have been notably enhanced, and the ductility and stiffness have also been somewhat enhanced. At the same time, based on the test, the finite element model is created according to the test specimen, while the accuracy of the model is verified, and the effects of the spacing and diameter of SMA wire, the strength of concrete and the thickness of protective layer on the mechanical properties of the specimen are analyzed.
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Affiliation(s)
- Qiang Pei
- College of Architectural Engineering, Dalian University, Dalian, China
- * E-mail:
| | - Bangwen Cai
- College of Architectural Engineering, Dalian University, Dalian, China
| | - Zhicheng Xue
- Architecture and Civil Engineering Institute, Guangdong University of Petrochemical Technology, Maoming, China
| | - Yu Ding
- College of Architectural Engineering, Dalian University, Dalian, China
| | - Di Cui
- School of Civil Engineering, Dalian Jiaotong University, Dalian, China
| | - Yun Guo
- College of Architectural Engineering, Dalian University, Dalian, China
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Xue Z, Ye G, Qiu T, Liu X, Wang X, Li Z. An objective, quantitative, dynamic assessment of facial movement symmetry changes after orthognathic surgery. Int J Oral Maxillofac Surg 2023; 52:272-281. [PMID: 35753942 DOI: 10.1016/j.ijom.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 01/11/2023]
Abstract
The aim of this study was to generate a quantitative dynamic assessment of facial movement symmetry changes after orthognathic surgery. Twenty-five patients diagnosed with skeletal class III malocclusion with facial asymmetry who underwent bimaxillary surgery were recruited. The patients were asked to perform a maximum smile that was recorded using a three-dimensional facial motion capture system preoperatively (T0), 6 months postoperatively (T1), and 12 months postoperatively (T2). Eleven facial landmarks were selected to analyse the cumulative distance and average speed during smiling. The absolute differences for the paired landmarks between the sides were analysed to reflect the symmetry changes. The results showed that the asymmetry index of the cheilions at T2 was significantly lower than that at T0 (P = 0.004), as was the index of the mid-lateral lower lips (P = 0.006). The mean difference in cheilions was 2.13 ± 1.41 mm at T0, 1.33 ± 1.09 mm at T1, and 1.00 ± 0.98 mm at T2. The facial total mobility at T1 was significantly lower than that at T0 (P < 0.001), while the total mobility at T2 was significantly higher than that at T1 (P = 0.012). The orthognathic surgical correction of facial asymmetry was able to improve the associated asymmetry of facial movements.
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Affiliation(s)
- Z Xue
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - G Ye
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - T Qiu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Liu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
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Sakamoto S, Baba H, Xue Z, Yamada Y, Rii J, Fujimoto A, Takeuchi N, Sazuka T, Imamura Y, Akakura K, Ichikawa T. The location of tumor volume over 2.8cc predict the prognosis among Japanese localized prostate cancer. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01280-0] [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: 02/12/2023]
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Greenberg SB, Ocampo AA, Xue Z, Chang NC, Thakkar KP, Reddy SB, Lee CJ, Ketchem CJ, Redd WD, Eluri S, Reed CC, Dellon ES. Increasing Rates of Esophageal Stricture and Dilation Over 2 Decades in Eosinophilic Esophagitis. Gastro Hep Adv 2022; 2:521-523. [PMID: 37293573 PMCID: PMC10249492 DOI: 10.1016/j.gastha.2022.12.006] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- S B Greenberg
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - A A Ocampo
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Z Xue
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - N C Chang
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - K P Thakkar
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - S B Reddy
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - C J Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - C J Ketchem
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - W D Redd
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - S Eluri
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - C C Reed
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - E S Dellon
- Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Diseases and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Division of Gastroenterology and Hepatology, Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Rigg EK, Wang J, Xue Z, Lunavat T, Hoang T, Parajuli H, Han M, Liu G, Bjerkvig R, Nazarov P, Nicot N, Kreis S, Wurth C, Miletic H, Sundstrøm T, Li X, Thorsen F. P12.09.B Extracellular vesicle derived-miR-146a increases melanoma brain metastasis progression via Notch signalling pathway dysregulation. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.274] [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: 11/14/2022] Open
Abstract
Abstract
Background
Melanoma has the highest tropism of any cancer to metastasize to the brain, and 40% of late-stage patients develop brain metastasis. Invasion, survival, and progression of tumors is dependent on the support of the surrounding microenvironment; therefore, modulation of neighboring cells is a key factor in metastasis. Extracellular vesicles (EVs) are important in cell-to-cell signalling, shuttling proteins, RNA and DNA to alter the surroundings into a favorable tumor microenvironment. Our aims were to investigate the role of melanoma brain metastasis (MBM) derived EVs in MBM development to find possible contributing mechanisms to cancer progression for eventual therapeutic targeting.
Material and Methods
MBM-EVs isolated via sequential ultracentrifugation were injected into mice as a pre-treatment prior to intracardial injection of MBM cells. EVs were co-cultured with normal human astrocytes (NHA) to investigate phenotypic changes. MiRNA sequencing was performed on EVs collected from MBM cells and compared to NHA and melanocytes to determine a candidate miRNA for targeting. In situ hybridization was utilized to evaluate the level of miRNA in clinical patient MBM samples. Functional in vivo validation was performed by injecting miRNA knockout MBM cells into mice. Sequencing of NHA in the presence or absence of target miRNA mimic was used to determine downstream targets.
Results
Mice primed with EVs had a significant increase in MBM tumor burden, compared to non-primed mice. Co-culture with MBM-EVs resulted in NHA activation in vitro, with increased proliferation, invasion, cytokine production, and upregulation of GFAP. MiR-146a was highly upregulated in MBM EVs, and miR-146a mimics activated NHA. Patient samples had a significant increase in miR-146a expression, compared to healthy brain controls. MiR-146a knockdown in MBM mice models reduced MBM burden and prolonged animal survival. Sequencing of NHA determined NUMB, an inhibitor of the Notch signalling pathway, as a target of miR-146a. Numb and other downstream Notch proteins expression was significantly altered in NHA in the presence of both MBM-EVs and miR-146a.
Conclusion
In conclusion, EVs are important regulators of MBM and establish tumor-supporting reactive astrocytes by delivery of miR-146a. MiR-146a alters Notch signalling in astrocytes via inhibition of the tumor suppressor gene NUMB. Elevated miR-146a levels in patients suggests a potential clinical intervention is possible via miR-146a targeting.
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Affiliation(s)
- E K Rigg
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - J Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine , Jinan , China
- Shandong Key Laboratory of Brain Function Remodeling , Jinan , China
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - Z Xue
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine , Jinan , China
- Shandong Key Laboratory of Brain Function Remodeling , Jinan , China
| | - T Lunavat
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - T Hoang
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - H Parajuli
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - M Han
- Department of Biomedicine, University of Bergen , Bergen , Norway
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine , Jinan , China
- Shandong Key Laboratory of Brain Function Remodeling , Jinan , China
| | - G Liu
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine , Jinan , China
- Shandong Key Laboratory of Brain Function Remodeling , Jinan , China
| | - R Bjerkvig
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - P Nazarov
- Proteome and Genome Research Unit, Department of Oncology, Luxembourg Institute of Health , Luxembourg , Luxembourg
| | - N Nicot
- Proteome and Genome Research Unit, Department of Oncology, Luxembourg Institute of Health , Luxembourg , Luxembourg
| | - S Kreis
- Signal Transduction Group, Department of Life Sciences and Medicine, University of Luxembourg , Luxembourg , Luxembourg
| | - C Wurth
- Signal Transduction Group, Department of Life Sciences and Medicine, University of Luxembourg , Luxembourg , Luxembourg
| | - H Miletic
- Department of Biomedicine, University of Bergen , Bergen , Norway
| | - T Sundstrøm
- Department of Neurosurgery, Haukeland University Hospital , Bergen , Norway
| | - X Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine , Jinan , China
- Shandong Key Laboratory of Brain Function Remodeling , Jinan , China
| | - F Thorsen
- Molecular Imaging Center, Department of Biomedicine, University of Bergen , Bergen , Norway
- Department of Biomedicine, University of Bergen , Bergen , Norway
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Cai W, Miao J, Wen J, Gu Y, Zhao X, Xue Z. 48P Tertiary lymphoid structure predicts major pathological response in resectable non-small cell lung cancer patients with neoadjuvant chemotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Merola J, Duffin K, Padilla B, Xue Z, Photowala H, Kaplan B, McInnes I. 290 Risankizumab (RZB) for active psoriatic arthritis (PsA): Integrated subgroup analysis from 2 double-blind, placebo-controlled, phase 3 studies (KEEPsAKE 1 and KEEPsAKE 2). J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.298] [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: 10/17/2022]
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Merola JF, Mcinnes I, Kavanaugh A, Nash P, Xue Z, Stakias V, Eldred A, Ciecinski S, Douglas K, Coates L. POS1029 EFFECTS OF TREATMENT WITH RISANKIZUMAB ON MINIMAL DISEASE ACTIVITY (MDA) AND DISEASE ACTIVITY IN PSORIATIC ARTHRITIS (DAPSA): AN ANALYSIS OF THE KEEPsAKE-1 AND -2 TRIALS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundRisankizumab (RZB) is a monoclonal antibody that specifically inhibits interleukin 23.ObjectivesTo evaluate the achievement of Minimal Disease Activity (MDA), its components, and achievement of Disease Activity in PsA Low Disease Activity and Remission (DAPSA LDA+REM, [DAPSA score ≤14]) in patients receiving RZB or placebo (PBO) in the KEEPsAKE 1 and 2 clinical trials.MethodsKEEPsAKE-1 and -2, double-blind, phase 3 trials, evaluated the efficacy of RZB versus PBO for the treatment of adult patients with active psoriatic arthritis (PsA). Patients were randomized (1:1) to receive subcutaneous RZB 150 mg or PBO at weeks 0, 4, and 16. The open label extension began at Week 24 with all patients receiving RZB 150 mg every 12 weeks thereafter. Achievement of MDA, its components, and achievement of DAPSA LDA+REM are reported using non-responder imputation.ResultsMDA achievement at Week 52 in KEEPsAKE-1 was 37.9% for patients originally randomized to RZB and 27.4% for patients originally randomized to PBO. In KEEPsAKE-2, MDA achievement was 27.2% and 33.8% for patients originally randomized to RZB and PBO, respectively. Achievement of MDA and its components are presented in Figure 1. In KEEPsAKE-1, at Week 52 59.2% of patients originally randomized to RZB and 51.4% of patients originally randomized to PBO achieved DAPSA LDA+REM. At Week 52 in KEEPsAKE-2, DAPSA LDA+REM was achieved by 44.6% of patients originally randomized to RZB and 46.6% of patients originally randomized to PBO (Figure 1).ConclusionPatients treated with RZB demonstrate achievement of MDA, its components, and DAPSA LDA+REM at Weeks 24 and 52.AcknowledgementsAbbVie Inc, participated in the study design; study research; collection, analysis and interpretation of data; and writing, reviewing, and approving of this abstract for submission. AbbVie funded the research for this study and provided writing support for this abstract. Medical writing assistance was provided by Trisha Rettig, Ph.D. of AbbVieDisclosure of InterestsJoseph F. Merola Consultant of: Amgen, Bristol-Myers Squibb, Abbvie, Dermavant, Eli Lilly, Novartis, Janssen, UCB, Sanofi, Regeneron, Sun Pharma, Biogen, Pfizer and Leo Pharma, Iain McInnes Consultant of: AbbVie, Amgen, Astra Zeneca, Compugen, Cabaletta, Evelo, Janssen, Lilly, Novartis, Pfizer, Sanofi, and UCB, Grant/research support from: AbbVie, Amgen, Astra Zeneca, Janssen, Lilly, Novartis, Pfizer, UCB, Arthur Kavanaugh Consultant of: AbbVie Inc., Amgen, Astra-Zeneca, BMS, Celgene, Centocor-Janssen, Pfizer, Roche, and UCB, Grant/research support from: AbbVie Inc., Amgen, Astra-Zeneca, BMS, Celgene, Centocor-Janssen, Pfizer, Roche, and UCB, Peter Nash Speakers bureau: Abbvie, Amgen, Janssen, Lilly, Novartis, Pfizer, UCB, BMS, Rocje, Sanofi, Gilead/Galapagos, MSD, Samsung, Celgene, Amgen, Boehringer, Consultant of: Abbvie, Amgen, Janssen, Lilly, Novartis, Pfizer, UCB, BMS, Rocje, Sanofi, Gilead/Galapagos, MSD, Samsung, Celgene, Amgen, Boehringer, Grant/research support from: Abbvie, Amgen, Janssen, Lilly, Novartis, Pfizer, UCB, BMS, Rocje, Sanofi, Gilead/Galapagos, MSD, Samsung, Celgene, Amgen, Boehringer, Zhenyi Xue Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Vassilis Stakias Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Ann Eldred Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Sandra Ciecinski Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Kevin Douglas Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Laura Coates Speakers bureau: AbbVie, Amgen, Biogen, Celgene, Eli Lilly, Galapagos, Gilead, Janssen, Medac, Novartis, Pfizer and UCB, Consultant of: AbbVie, Amgen, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Gilead, Galapagos, Janssen, Novartis, Pfizer and UCB, Grant/research support from: AbbVie, Amgen, Celgene, Eli Lilly, Janssen, Novartis and Pfizer
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Merola JF, Callis-Duffin K, Padilla B, Xue Z, Photowala H, Kaplan B, Mcinnes I. POS1032 RISANKIZUMAB FOR ACTIVE PSORIATIC ARTHRITIS: INTEGRATED SUBGROUP ANALYSIS FROM 2 DOUBLE-BLIND, PLACEBO-CONTROLLED, PHASE 3 STUDIES (KEEPsAKE 1 AND KEEPsAKE 2). Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRisankizumab (RZB), a monoclonal antibody that specifically inhibits interleukin 23, is being investigated as a treatment for adults with psoriatic arthritis (PsA).ObjectivesWe report the proportion of patients with active PsA treated with RZB vs placebo who achieved ≥20% improvement in American College of Rheumatology criteria (ACR20) by baseline demographics and by concomitant or prior medication use subgroups.MethodsKEEPsAKE 1 (NCT03675308) and KEEPsAKE 2 (NCT03671148) are ongoing, multicenter, randomized, double-blind, placebo-controlled, phase 3 studies. Patients with active PsA with an inadequate response or intolerance to conventional synthetic disease-modifying, anti-rheumatic drug (csDMARD; KEEPsAKE 1 and 2) and/or biologic therapy (KEEPsAKE 2) received RZB 150 mg or placebo (1:1). The primary endpoint was the proportion of patients achieving ≥20% improvement in ACR criteria (ACR20) at week 24.ResultsIn KEEPsAKE 1 (RZB, n=483; placebo, n=481) and KEEPsAKE 2 (RZB, n=224; placebo, n=219), baseline demographics and characteristics were generally balanced between treatment groups. In this integrated analysis, a greater proportion of patients receiving RZB vs placebo achieved ACR20 at week 24, regardless of age (<65 years, ≥65 years, ≥65 to <75 years, ≥75 years), sex, body mass index (<25 kg/m2, ≥25 to <30 kg/m2, ≥30 kg/m2), race (White, non-White), PsA duration (≤5 years, >5 to ≤10 years, >10 years), baseline hs-CRP (<3 mg/L, ≥3 mg/L), concomitant csDMARD at baseline (any csDMARD, any methotrexate, none), or prior biologics use (yes, no). The proportion of RZB-treated patients who achieved ACR20 was generally similar across most assessed demographic or prior treatment subgroups. No new safety concerns were observed with RZB.ConclusionRZB demonstrates efficacy vs placebo for active PsA as shown by greater proportions of patients achieving ACR20 at week 24, regardless of baseline demographics, concomitant csDMARD use at baseline, or prior biologic use.AcknowledgementsAbbVie Inc. participated in the study design; study research; collection, analysis, and interpretation of data; funded the research for this study. Medical writing assistance, funded by AbbVie, was provided by Alicia Salinero, PhD, of JB Ashtin.Disclosure of InterestsJoseph F. Merola Consultant of: Amgen, Bristol-Myers Squibb, AbbVie, Dermavant, Eli Lilly, Novartis, Janssen, UCB, Sanofi, Regeneron, Sun Pharma, Biogen, Pfizer and Leo Pharma, Kristina Callis-Duffin Consultant of: Amgen/Celgene, AbbVie, Boehringer-Ingelheim, Bristol-Myers Squibb, CorEvitas, Janssen, Lilly, Novartis, and Pfizer, Grant/research support from: Amgen/Celgene, AbbVie, Boehringer-Ingelheim, CorEvitas, Lilly, Janssen, Novartis, Pfizer, Byron Padilla Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Zhenyi Xue Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Huzefa Photowala Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Blair Kaplan Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Iain McInnes Consultant of: AbbVie, AstraZeneca, Boehringer Ingelheim, Bristol Myers, Celgene, Janssen, Leo, Lilly, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, AstraZeneca, Boehringer Ingelheim, Bristol Myers, Celgene, Janssen, Leo, Lilly, Novartis, Pfizer, and UCB
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Xue Z, Lu J, Lin J, Huang CM, Li P, Xie JW, Wang JB, Lin JX, Chen QY, Zheng CH. [Establishment of artificial neural network model for predicting lymph node metastasis in patients with stage Ⅱ-Ⅲ gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:327-335. [PMID: 35461201 DOI: 10.3760/cma.j.cn441530-20220105-00010] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish a neural network model for predicting lymph node metastasis in patients with stage II-III gastric cancer. Methods: Case inclusion criteria: (1) gastric adenocarcinoma diagnosed by pathology as stage II-III (the 8th edition of AJCC staging); (2) no distant metastasis of liver, lung and abdominal cavity in preoperative chest film, abdominal ultrasound and upper abdominal CT; (3) undergoing R0 resection. Case exclusion criteria: (1) receiving preoperative neoadjuvant chemotherapy or radiotherapy; (2) incomplete clinical data; (3) gastric stump cancer.Clinicopathological data of 1231 patients with stage II-III gastric cancer who underwent radical surgery at the Fujian Medical University Union Hospital from January 2010 to August 2014 were retrospectively analyzed. A total of 1035 patients with lymph node metastasis were confirmed after operation, and 196 patients had no lymph node metastasis. According to the postoperative pathologic staging. 416 patients (33.8%) were stage Ⅱ and 815 patients (66.2%) were stage III. Patients were randomly divided into training group (861/1231, 69.9%) and validation group (370/1231, 30.1%) to establish an artificial neural network model (N+-ANN) for the prediction of lymph node metastasis. Firstly, the Logistic univariate analysis method was used to retrospectively analyze the case samples of the training group, screen the variables affecting lymph node metastasis, determine the variable items of the input point of the artificial neural network, and then the multi-layer perceptron (MLP) to train N+-ANN. The input layer of N+-ANN was composed of the variables screened by Logistic univariate analysis. Artificial intelligence analyzed the status of lymph node metastasis according to the input data and compared it with the real value. The accuracy of the model was evaluated by drawing the receiver operating characteristic (ROC) curve and obtaining the area under the curve (AUC). The ability of N+-ANN was evaluated by sensitivity, specificity, positive predictive values, negative predictive values, and AUC values. Results: There were no significant differences in baseline data between the training group and validation group (all P>0.05). Univariate analysis of the training group showed that preoperative platelet to lymphocyte ratio (PLR), preoperative systemic immune inflammation index (SII), tumor size, clinical N (cN) stage were closely related to postoperative lymph node metastasis. The N+-ANN was constructed based on the above variables as the input layer variables. In the training group, the accuracy of N+-ANN for predicting postoperative lymph node metastasis was 88.4% (761/861), the sensitivity was 98.9% (717/725), the specificity was 32.4% (44/136), the positive predictive value was 88.6% (717/809), the negative predictive value was 84.6% (44/52), and the AUC value was 0.748 (95%CI: 0.717-0.776). In the validation group, N+-ANN had a prediction accuracy of 88.4% (327/370) with a sensitivity of 99.7% (309/310), specificity of 30.0% (18/60), positive predictive value of 88.0% (309/351), negative predictive value of 94.7% (18/19), and an AUC of 0.717 (95%CI:0.668-0.763). According to the individualized lymph node metastasis probability output by N+-ANN, the cut-off values of 0-50%, >50%-75%, >75%-90% and >90%-100% were applied and patients were divided into N0 group, N1 group, N2 group and N3 group. The overall prediction accuracy of N+-ANN for pN staging in the training group and the validation group was 53.7% and 54.1% respectively, while the overall prediction accuracy of cN staging for pN staging in the training group and the validation group was 30.1% and 33.2% respectively, indicating that N+-ANN had a better prediction than cN stage. Conclusions: The N+-ANN constructed in this study can accurately predict postoperative lymph node metastasis in patients with stage Ⅱ-Ⅲ gastric cancer. The N+-ANN based on individualized lymph node metastasis probability has better accurate prediction for pN staging as compared to cN staging.
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Affiliation(s)
- Z Xue
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - J Lu
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - J Lin
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - C M Huang
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - P Li
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - J W Xie
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - J B Wang
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - J X Lin
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - Q Y Chen
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - C H Zheng
- Department of Gastric Surgery, Key Laboratory of Gastrointestinal Cancer (Ministry of Education), Fujian Medical University Union Hospital, Fuzhou 350004, China
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Wang X, Yu J, Chen J, Hou Y, Du Z, Huang H, Tang S, Han Y, Ding C, Xue Z. Copy number variation analysis of m 6 A regulators identified METTL3 as a prognostic and immune-related biomarker in bladder cancer. Cancer Med 2021; 10:7804-7815. [PMID: 34668652 PMCID: PMC8559456 DOI: 10.1002/cam4.3981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/12/2021] [Accepted: 05/05/2021] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Growing evidence has demonstrated an indispensable role for N6 -methyladenosine (m6 A) in human diseases, but the copy number variations (CNVs) of m6 A regulatory genes in bladder cancer (BLCA) remains largely unknown. METHODS We investigated the CNVs on all known m6 A regulatory genes using the Cancer Genome Atlas (TCGA) database. The association between CNV events and clinicopathological as well as molecular characteristics of BLCA patients were explored. Gene set enrichment analysis (GSEA) was implemented to reveal relative cellular processes. Association between m6 A regulatory genes and immune infiltrates was analyzed by The Tumor Immune Estimation Resource (TIMER) database. RESULTS CNV events of m6 A regulatory genes were frequently observed in BLCA. CNVs of METTL3, METTL14, and METTL16 correlated with molecular characteristics of BLCA patients including TP53 mutation. CNVs of METTL3 associated with the overall survival (OS) of BLCA patients. METTL3 was also associated with several cancer-related cellular processes, including mitotic spindle assembly, G2/M checkpoint, and E2F targets signaling pathway. Besides, the CNVs of m6 A regulatory genes were correlated with specific kinds of immune infiltrates. CONCLUSIONS There are significant correlations between m6 A regulatory genes with CNVs and clinicopathological characteristics. METTL3 with CNVs were associated with the immune infiltrates and performed as a prognostic marker in BLCA.
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Affiliation(s)
- Xiaoshuai Wang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jingwei Yu
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Jinbao Chen
- Zhongshan Medical College of Sun Yat-sen University, Guangzhou, China
| | - Yingdong Hou
- Zhongshan Medical College of Sun Yat-sen University, Guangzhou, China
| | - Zefeng Du
- Zhongshan Medical College of Sun Yat-sen University, Guangzhou, China
| | - Haoyang Huang
- Zhongshan Medical College of Sun Yat-sen University, Guangzhou, China
| | - Siqi Tang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Yueyin Han
- Zhongshan Medical College of Sun Yat-sen University, Guangzhou, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhicheng Xue
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, China, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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Zhang X, Xue Z, Li Z, Ren A, Zhu X, Deng R, Ma Y. Inhibition of NLRC5 regulates cytokine expression in CD4+ T helper lymphocytes and prolongs murine islet and skin allograft survival. Mol Immunol 2021; 137:67-74. [PMID: 34225136 DOI: 10.1016/j.molimm.2021.06.020] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 06/10/2021] [Accepted: 06/27/2021] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to study the effect of inhibiting NLRC5 expression and function on CD4 + T cells, and islet and skin transplantation in mice. A murine skin graft model and islet cell transplantation model were established, and the expression of NLRC5 was compared in rejection and immune tolerance groups. Mice spleen-derived CD4 + T cells were cultured, purified, and enriched in vitro, and transfected with the shRNA lentiviral vector NLRC5-RNAi-GFP. Changes in cytokine secretion were detected to understand changes in immunological function. Murine islet and skin transplantation models were injected with CD4 + T cells transfected with the lentivirus, and the survival time of the grafts and the levels of IFN-γ and IL-10 were compared between groups. The expression of NLRC5 mRNA in islet and skin grafts was significantly increased. In vitro experiments showed that the expression of IL-4 and IL-10 was up-regulated in CD4 + T cells, and T cells differentiation turned to Th2 after inhibition of NLRC5. In vivo experiments showed that inhibition of NLRC5 prolonged islet and skin graft survival. Pathological examination showed that the rejection of transplanted skin and islets in the NLRC5-RNAi group was mild, and there was a correlation between high expression of NLRC5 and rejection of mouse islet and skin grafts. In summary, inhibition of NLRC5 can prolong islet and skin graft survival induce transplant immune tolerance through induction of the secretion of Th2 cytokines by CD4 + T cells.
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Affiliation(s)
- Xuzhi Zhang
- Department of Organ Transplantation, the First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Er Lu, Guangzhou, 510080, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhicheng Xue
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 E Dongfeng Road, Guangzhou, 510060, China
| | - Zhongqiu Li
- Department of Organ Transplantation, the First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Er Lu, Guangzhou, 510080, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ao Ren
- Department of Organ Transplantation, the First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Er Lu, Guangzhou, 510080, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiaonan Zhu
- Department of Pharmacology, Zhongshan Medical School of Sun Yat-sen University, No.76 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Ronghai Deng
- Department of Organ Transplantation, the First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Er Lu, Guangzhou, 510080, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Yi Ma
- Department of Organ Transplantation, the First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Er Lu, Guangzhou, 510080, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
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Zhang LY, Peng QY, Liu YR, Ma QG, Zhang JY, Guo YP, Xue Z, Zhao LH. Effects of oregano essential oil as an antibiotic growth promoter alternative on growth performance, antioxidant status, and intestinal health of broilers. Poult Sci 2021; 100:101163. [PMID: 34082177 PMCID: PMC8181178 DOI: 10.1016/j.psj.2021.101163] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 11/28/2022] Open
Abstract
This experiment was conducted to assess the comparative effects of dietary antibiotics and oregano essential oil (OEO) addition on growth performance, antioxidant status and intestinal health of broilers. A total of 384 one-day-old broilers were randomly allocated to 4 treatments with 6 replicates of 16 broilers each. The 4 treatments were: an antibiotic-free control diet (control), control + 20 mg/kg colistin sulfate and 20 mg/kg virginiamycin (antibiotics), control + 200 mg/kg natural oregano essential oil (NOEO), and control + 200 mg/kg synthetic oregano essential oil (SOEO). The experiment lasted for 42 d. Results showed that birds fed with OEO had greater (P < 0.05) average daily gain (ADG) and lower (P < 0.05) feed conversion ratio (FCR) than those fed with control diet during d 1 to 21. Besides, birds fed with NOEO had the greatest (P < 0.05) ADG in the four groups during d 22 to 42. The serum oxidative stress parameters showed that OEO improved (P < 0.05) the activities of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and glutathione reductase (GR) of birds on day 21 and the activity of total antioxidant capacity (T-AOC) of birds on d 42. Relative to control, NOEO increased (P < 0.05) the activity of T-AOC in jejunum and decreased (P < 0.05) the level of malondialdehyde (MDA) in serum and jejunum. Moreover, OEO supplementation increased (P < 0.05) the concentrations of sIgA in duodenum and jejunum, Lactobacillus and total anaerobes in cecum, as well as activities of trypsin, chymotrypsin, lipase and amylase in duodenum, but restrained (P < 0.05) the amount of Escherichia coli. The NOEO supplementation increased (P < 0.05) total anaerobes of broilers on d 42 and the villus height to crypt depth ratio (VH/CD) of ileum. These results suggest that OEO improved antioxidant status and intestinal health of broilers which contributed to the growth performance improvement of broilers. Dietary OEO supplementation can be a promising alternative to antibiotic growth promoters for improving poultry production.
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Affiliation(s)
- L Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China; Henan Agricultural Foreign Economic Cooperation Center, Zhengzhou, PR China
| | - Q Y Peng
- Kemin (China) Technologies Co. Ltd., Zhuhai 519040, PR China
| | - Y R Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Y P Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Z Xue
- Kemin (China) Technologies Co. Ltd., Zhuhai 519040, PR China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
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Gu X, Jin Y, Li R, Zhang D, Dong C, Zhang Q, Xue Z, Gu Z. AB0343 THE CHARACTERISTICS OF T CELLS IN SYSTEMIC LUPUS ERYTHEMATOSUS PATIENTS WITH ANXIETY BASED ON MACHINE LEARNING. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic lupus erythematosus (SLE) is an autoimmune disease, the immune system of patients to be disordered, especially in T cell subsets1. They were prone to mental diseases, anxiety particularly, which lead to suicide2. The recent study had reported that CD4+ T cells in the peripheral blood played the key role in like anxiety behavior of mice3. Although there showed that the level of serum TNF-α in SLE patients with anxiety was higher than without anxiety4, finding the important special mediators especially in T cell subsets was still necessary for the prevention of anxiety in SLE patients.Objectives:In total, 108 SLE patients, which met the diagnostic criteria of the American Society of rheumatology (v1997), were enrolled in this study from Affilliated Hospital of Nantong University, China. Exclusion criteria included other autoimmune diseases and active infection (including hepatitis B or C virus, Epstein-Barr virus, human immunodeficiency virus or Mycobacterium tuberculosis infection).Methods:We surveyed the abundance of 74 immune cell subpopulations from 108 SLE patients using flow cytometry, and investigated their differences between patients with and without anxiety (24 versus 84). Moreover, machine learning including Lasso regression, Random forest (RF) and Sparsity partial least squares discriminant analysis (sPLS-DA) was employed to build models and futher selected important features for the classification of SLE patients with anxiety.Results:SLE patients with anxiety showed higher body mass index (BMI) and lower quality of life. In their peripheral blood, the proportion of internal cell subsets composition of Th cell and Treg cells changed. By machine learning, we finally found that BMI and PD1-CD28- Treg played important rules to developing lupus anxiety.Conclusion:In this study, machine learning was applied to build models to select the most important T cell subset in SLE patients with anxiety. These findings suggested that BMI and imbalance of PD1-CD28- Treg containing effector memory Treg cells and effector Treg cells mostly played important roles in the development of SLE anxiety.Disclosure of Interests:None declared
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Bao Y, Ji J, Xue Z, Gu Z. POS0787 BERBERINE MODULATE LUPUS SYNDROME VIA THE REGULATION OF GUT MICROBIOTA IN MRL/LPR MICE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Intestinal flora disorder and immune abnormalities have been reported in systemic lupus erythematosus (SLE) patients1,2. Berberine (BBR) showed significant effects in regulating the intestinal flora, repairing gut barriers and regulating immune cells3,4. While few reports mentioned the abnormal gut microbiota and metabolites in Chinese SLE patients.Objectives:Our investigation tried to illustrate the relationship between gut microbiota, intestinal metabolites and disease activity in Chinese SLE patients. And the effect of BBR to intestinal dysbacteriosis, multiple organ damages and over-activated immune system in MRL/Lpr mice.Methods:16S high-throughput (16S rRNA) sequence, qRT-PCR and gas chromatography technology were used to determine the gut microbiota and metabolites in 104 SLE patients from Affiliated Hospital of Nantong University, China. BBR was orally treated to the MRL/Lpr mice in low, medium and high doses. After 6 weeks treatment, mice were sacrificed. Serum, faeces and organs were collected for further studies.Results:Chinese SLE patients showed higher abundance of Bacteroidetes and lower abundance of Firmcutes. The results of qRT-PCR showed high Firmcutes/Bacteroidetes (F/B) ratio of SLE patients. The F/B ratio was negative correlated with SLE disease activity index (SLEDA) score. Almost all the tested short-chain fatty acids (SCFAs) found statistically significant results in SLE and LN (lupus nephritis) patients, especially the propanoic acid and butyric. BBR altered the relative abundance of Bacteroides and Verrucomicrobia and the butyric acid content in colon of MRL/Lpr mice. The increase of tight junction protein also indicated the gut barrier was repaired by BBR. Treg and Tfr cells in spleen and mesenteric lymph node (MLN) were increased. These results revealed a positive therapeutic effect of berberine on SLE from gut microbiota to immune status.Conclusion:Our study highlights current status of intestinal dysbacteriosis in Chinese patients with SLE and differences in intestinal metabolites among patients with different disease states. The regulation of intestinal flora and the repairment of gut barrier by intestinal metabolites in BBR treated mice seemed to be the factor that directed the immune responses and disease outcomes. The ultimate goal of our study was to determine the beneficial effects of regulating the gut microbiota on the treatment of SLE. The application of berberine is a relatively safe and convenient way. In the coming investigations, we plan to focus on the study of berberine and its metabolites on intestinal function and systemic immunity.References:[1]Guo, M. et al. Alteration in gut microbiota is associated with dysregulation of cytokines and glucocorticoid therapy in systemic lupus erythematosus. Gut microbes11, 1758-1773, doi:10.1080/19490976.2020.1768644 (2020).[2]Mu, Q. et al. Control of lupus nephritis by changes of gut microbiota. Microbiome5, 73, doi:10.1186/s40168-017-0300-8 (2017).[3]Habtemariam, S. Berberine pharmacology and the gut microbiota: A hidden therapeutic link. Pharmacological research155, 104722, doi:10.1016/j.phrs.2020.104722 (2020).[4]Cui, H. et al. Berberine Regulates Treg/Th17 Balance to Treat Ulcerative Colitis Through Modulating the Gut Microbiota in the Colon. Frontiers in pharmacology9, 571, doi:10.3389/fphar.2018.00571 (2018).Figure 1.Disclosure of Interests:None declared
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Fu T, Yang Y, Gu X, Dong C, Zhao R, Ji J, Xue Z, Zhang X, Gu Z. POS0761 INVESTIGATION ON THE EFFECT AND MECHANISM OF ABNORMALLY ACTIVATED CD8+ T CELLS FROM BONE MARROW ON HEMATOPOIETIC STEM CELLS IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:SLE is an autoimmune disease characterized by the abnormal function of lymphocytes. The impairment of hematopoietic function of bone marrow participates in its pathogenesis, in which T cells play an important role. However, study on bone marrow T cells in SLE patients is very limited.Objectives:This study aims to characterize the phenotype and molecular characteristics of abnormally activated CD8+T cells in bone marrow of SLE patients and explore the mechanism of hematopoietic stem cells (HSCs) reduction caused by the abnormally activated CD8+T cells in bone marrow of patients with SLE.Methods:A total of 8 SLE patients and 5 age- and sex-matched controls were recruited in our study. Among them, 3 SLE patients and 4 donors were collected bone marrow and peripheral blood samples for Single-cell RNA sequencing (scRNA-seq) and functional studies. BM and peripheral T cell subsets were measured by flow cytometry. Plasma cytokines and secreted immunoglobulins were detected by Luminex. Disease activity of SLE patients was measured using the SLE Disease Activity Index (SLEDAI). All analyses were performed using R language and Flowjo 9.Results:In the present study, SLE patients had increased CD8+T%αβT cells and decreased CD4+T%αβT cells in bone marrow of SLE, compared to healthy controls. A large number of CD38+HLADR+CD8+T cells existed in the bone marrow and peripheral blood of SLE patients. Those patients also showed reduced number of HSCs, and with a downward trend of the numbers of peripheral red blood cells, white blood cells, neutrophils, hemoglobin, and platelets. By scRNA-seq, the CD38+HLADR+CD8+T cells contained high levels of GZMK, GZMA, PRF1, IFNG, and TNF in the bone marrow of SLE patients. the CD38+HLADR+CD8+T cells exhibited significant relationship with HSCs, white blood cells, neutrophils, and platelets.Conclusion:These findings demonstrated that the abnormally activated CD8+T cells in bone marrow can reduce the number of HSCs by the expression of killer molecules, which contributes to the impairment of hematopoietic function and the development of SLE. This project focuses on the specific bone marrow T cell subset in SLE. The completement of this project provides information for exploring the mechanism of hematopoiesis involvement.References:[1]Anderson E, Shah B, Davidson A, Furie R. Lessons learned from bone marrow failure in systemic lupus erythematosus: Case reports and review of the literature. Semin Arthritis Rheum. 2018;48(1):90-104.[2]Sun LY, Zhou KX, Feng XB, Zhang HY, Ding XQ, Jin O, Lu LW, Lau CS, Hou YY, Fan LM. Abnormal surface markers expression on bone marrow CD34+cells and correlation with disease activity in patients with systemic lupus erythematosus. Clin Rheumatol. 2007;26(12):2073-2079.Acknowledgements:We want to thank Lu Meng, Teng Li, Wei Zhou, and Jiaxin Guo for their assistance with this study.Disclosure of Interests:None declared
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Li N, Zheng S, Xue Z, Xiong Z, Zou Y, Tang Y, Wei WD, Yang L. Expression and prognostic value of transcription-associated cyclin-dependent kinases in human breast cancer. Aging (Albany NY) 2021; 13:8095-8114. [PMID: 33686962 PMCID: PMC8034920 DOI: 10.18632/aging.202595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/14/2021] [Indexed: 12/24/2022]
Abstract
The expression and prognostic significance of transcription-associated cyclin-dependent kinases (TA-CDKs) in breast cancer have not been systematically investigated. Using Oncomine, GEPIA2, the Human Protein Atlas, the Kaplan-Meier Plotter, cBioPortal, Metascape, and DAVID 6.8, we profiled the expression of TA-CDKs in breast cancer, inferred their biological functions, and assessed their effect on prognosis. The expression of CDK7/10/13/19 mRNAs in breast cancer tissues was significantly higher than in normal breast tissues. Survival analysis of breast cancer patients revealed that increased CDK8 expression was associated with inferior overall survival (OS), higher expression of CDK7 or CDK8 was associated with inferior relapse-free survival (RFS), but higher expression of CDK13 was associated with favorable RFS and OS. In addition, a high genetic alteration rate (56%) in TA-CDKs was associated with shorter OS. On functional enrichment analysis, top GO enrichment items for TA-CDKs and their neighboring genes included cyclin-dependent protein serine/threonine kinase activity and transferase complex. The top KEGG pathways included cell cycle and mismatch repair. These results suggest that CDK7/8/13 are potential prognostic biomarkers for breast cancer patients and provide novel insight for future studies examining their usefulness as therapeutic targets.
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Affiliation(s)
- Ning Li
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Shaoquan Zheng
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zhicheng Xue
- Department of Gastric Surgery, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zhenchong Xiong
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yutian Zou
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yuhui Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wei-Dong Wei
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Lu Yang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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Zhou J, Xue Z, Li Q, Ling X, Wu Y. P76.96 START: Real-world Prospective Study on Sequential Therapy with First-Line Afatinib in Chinese Patients with EGFRm+ Advanced NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1153] [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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Wang Y, Wo Y, Xue X, Xue Z. P14.10 Efficacy of Anti-PD-1/PD-L1 Monoclonal Antibody Treatment of Advanced NSCLC on Density and Distribution of Tumor Infiltrating T Cells. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.516] [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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Guo M, Xue Z, Yao HM, Jia YP, Qin JB, Yin Y. [A young male with multiple endocrine neoplasia type 2 misdiagnosed as viral myocarditis]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:182-184. [PMID: 33611907 DOI: 10.3760/cma.j.cn112148-20200320-00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Guo
- Department of Cardiology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Z Xue
- Department of Cardiology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H M Yao
- Department of Cardiology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y P Jia
- Department of Cardiology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J B Qin
- Department of Radiology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Yin
- Department of Pathology, First Hospital of Shanxi Medical University, Taiyuan 030001, China
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Al-Hendy A, Gillispie V, Kim J, Munro M, Eichner S, Kumar M, Xue Z, Bradley L. Elagolix with Add-Back Therapy in Women with Heavy Menstrual Bleeding, Uterine Fibroids, and Anemia: Subgroup Analysis of Two Phase 3 Trials. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.042] [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: 11/17/2022]
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Xue Z, Wu D, Shen LL, Lu J, Zheng CH, Li P, Xie JW, Wang JB, Lin JX, Chen QY, Cao LL, Lin M, Tu RH, Huang ZN, Lin JL, Zheng HL, Huang C. 119MO Application of an artificial neural network for predicting the chemotherapy benefit of patients with gastric cancer after radical surgery. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Wang LQ, Wu YK, Xue Z, Zheng CH, Li P, Xie JW, Wang JB, Lin JX, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Huang ZN, Lin JL, Zheng HL, Huang C. 185P Effect of sarcopenia on short- and long-term outcomes of patients with gastric neuroendocrine tumour after radical surgery: Results from a large, two-institutional series. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.206] [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] Open
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Wang FH, Wang ZK, Xue Z, Lin JX, Zheng CH, Li P, Xie JW, Wang JB, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Huang ZN, Lin JL, Zheng HL, Huang C. 143P Lymph nodes metastasis is the most important factor associated with pattern of recurrence following curative resection of gastric adenocarcinoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.164] [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] Open
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Xu BB, Xue Z, Wu D, Lu J, Truty M, Xie JW, Wang JB, Lin JX, Chen QY, Cao LL, Lin M, Tu RH, Huang ZN, Lin JL, Zheng HL, Li P, Zheng CH, Huang C. 184P Development and external validation of a nomogram to predict recurrence-free survival after R0 resection for stage II/III gastric adenocarcinoma: An international multicenter study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.205] [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] Open
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35
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Zou Y, Zheng S, Xiao W, Xie X, Yang A, Gao G, Xiong Z, Xue Z, Tang H, Xie X. circRAD18 sponges miR-208a/3164 to promote triple-negative breast cancer progression through regulating IGF1 and FGF2 expression. Carcinogenesis 2020; 40:1469-1479. [PMID: 31001629 DOI: 10.1093/carcin/bgz071] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/13/2019] [Accepted: 04/15/2019] [Indexed: 01/16/2023] Open
Abstract
As a new rising star of non-coding RNA, circular RNAs (circRNAs) emerged as vital regulators with biological functions in diverse of cancers. However, the function and precise mechanism of the vast majority of circRNAs in triple-negative breast cancer (TNBC) occurrence and progression have not been clearly elucidated. In the current study, we identified and further investigated hsa_circ_0002453 (circRAD18) by analyzing our previous microarray profiling. Expression of circRAD18 was found significantly upregulated in TNBC compared with normal mammary tissues and cell lines. circRAD18 was positively correlated with T stage, clinical stage and pathological grade and was an independent risk factor for TNBC patients. We performed proliferation, colony formation, cell migration, apoptosis and mouse xenograft assays to verify the functions of circRAD18. Knockdown of circRAD18 significantly suppressed cell proliferation and migration, promoted cell apoptosis and inhibited tumor growth in functional and xenograft experiments. Through luciferase reporter assays, we confirmed that circRAD18 acts as a sponge of miR-208a and miR-3164 and promotes TNBC progression through upregulating IGF1 and FGF2 expression. Altogether, our research revealed the pivotal role of circRAD18-miR-208a/3164-IGF1/FGF2 axis in TNBC tumorigenesis and metastasis though the mechanism of competing endogenous RNAs. Thus, circRAD18 may serve as a novel prognostic biomarker and potential target for TNBC treatment in the future.
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Affiliation(s)
- Yutian Zou
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Shaoquan Zheng
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Weikai Xiao
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Xinhua Xie
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Anli Yang
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Guanfeng Gao
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Zhenchong Xiong
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Zhicheng Xue
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Xiaoming Xie
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
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Rajaraman S, Candemir S, Xue Z, Alderson PO, Kohli M, Abuya J, Thoma GR, Antani S. A novel stacked generalization of models for improved TB detection in chest radiographs. Annu Int Conf IEEE Eng Med Biol Soc 2019; 2018:718-721. [PMID: 30440497 DOI: 10.1109/embc.2018.8512337] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chest x-ray (CXR) analysis is a common part of the protocol for confirming active pulmonary Tuberculosis (TB). However, many TB endemic regions are severely resource constrained in radiological services impairing timely detection and treatment. Computer-aided diagnosis (CADx) tools can supplement decision-making while simultaneously addressing the gap in expert radiological interpretation during mobile field screening. These tools use hand-engineered and/or convolutional neural networks (CNN) computed image features. CNN, a class of deep learning (DL) models, has gained research prominence in visual recognition. It has been shown that Ensemble learning has an inherent advantage of constructing non-linear decision making functions and improve visual recognition. We create a stacking of classifiers with hand-engineered and CNN features toward improving TB detection in CXRs. The results obtained are highly promising and superior to the state-of-the-art.
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Xue Z, Yu J, Higashikuchi T, Compher C. MON-PO475: Low Body Mass Index Predicts Short- and Long-Term Clinical Outcomes in Asian Clinical Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32308-8] [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: 11/16/2022]
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Xue Z, Zhang X, Li Z, Deng R, Wu L, Ma Y. Analysis of portal vein thrombosis after liver transplantation. ANZ J Surg 2019; 89:1075-1079. [PMID: 31087535 DOI: 10.1111/ans.15242] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 03/05/2019] [Accepted: 03/25/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Zhicheng Xue
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Xuzhi Zhang
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Zhongqiu Li
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Ronghai Deng
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Linwei Wu
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Yi Ma
- Department of Organ TransplantationThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
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Hou X, Xue Z, Liu J, Yan M, Xia Y, Ma Z. Characterization and property investigation of novel eco‐friendly agar/carrageenan/TiO
2
nanocomposite films. J Appl Polym Sci 2018. [DOI: 10.1002/app.47113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- X. Hou
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Z. Xue
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - J. Liu
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - M. Yan
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Y. Xia
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Z. Ma
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
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Hou Y, Tam NL, Xue Z, Zhang X, Liao B, Yang J, Fu S, Ma Y, Wu L, He X. Management of hepatic vein occlusive disease after liver transplantation: A case report with literature review. Medicine (Baltimore) 2018; 97:e11076. [PMID: 29901618 PMCID: PMC6024223 DOI: 10.1097/md.0000000000011076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
RATIONALE Hepatic vein occlusive disease (HVOD) is a rare complication after liver transplantation, which is characterized by nonthrombotic, fibrous obliteration of the small centrilobular hepatic veins by connective tissue and centrilobular necrosis in zone 3 of the acini. HVOD after solid organ transplantation has been reported; recently, most of these reports with limited cases have documented that acute cell rejection and immunosuppressive agents are the major causative factors. HVOD is relatively a rare complication of liver transplantation with the incidence of approximately 2%. PATIENT CONCERNS A 59-year-old male patient with alcoholic liver cirrhosis underwent liver transplantation in our center. He suffered ascites, renal impairment 3 months after the surgery while liver enzymes were in normal range. DIAGNOSES Imagining and pathology showed no evidence of rejection or vessels complications. HVOD was diagnosed with pathology biopsy. INTERVENTIONS Tacrolimus was withdrawn and the progression of HVOD was reversed. OUTCOMES Now, this patient has been followed up for 6 months after discharge with normal liver graft function. LESSONS The use of tacrolimus in patients after liver transplantation may cause HVOD. Patients with jaundice, body weight gain, and refractory ascites should be strongly suspected of tacrolimus related HVOD.
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Affiliation(s)
| | | | | | | | - Bing Liao
- Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jie Yang
- Department of Organ Transplantation
| | | | - Yi Ma
- Department of Organ Transplantation
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Ericsson P, Maddahi A, Jing X, Bäckström T, Xue Z, Säfholm A, Sundstedt A, Salford L, Sjögren H. Treatment with zebularine-treated tolerogenic dendritic cells reduces the amount of inhibitory antibodies in rats with induced immunity to human Factor VIII. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.297] [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: 11/26/2022]
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Xue Z, Zhang X, Chen M, Lu X, Deng R, Ma Y. Dendritic Cells Transduced with Single Immunoglobulin IL-1-Related Receptor Exhibit Immature Properties and Prolong Islet Allograft Survival. Front Immunol 2017; 8:1671. [PMID: 29250066 PMCID: PMC5714859 DOI: 10.3389/fimmu.2017.01671] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 11/14/2017] [Indexed: 12/26/2022] Open
Abstract
Members of toll-like receptor-interleukin 1 receptor signaling [TLR/IL-1R (TIR)] superfamily mediate maturation of dendritic cells (DCs) and launch immune response in transplanted organs. In this study, we hypothesized that TIR8, also known as single immunoglobulin IL-1-related receptor (SIGIRR) molecule, refrain DCs from maturation and induce immune tolerance of transplanted organ. DCs were transduced with the recombinant adenovirus Ad5F35 to highly express SIGIRR (DC-SIGIRR), then injected to murine recipient before islet transplantation. It revealed that DCs transduced with SIGIRR had low expression of major histocompatibility and costimulatory molecules along with strong phagocytic ability in vitro assay. The data demonstrated that recipients treated with DC-SIGIRR had satisfying islet allograft function and long survival times, with an increase of Treg and reduction of Th17 in both spleen and draining lymph nodes in vivo. Therefore, genetic modification of SIGIRR inhibits DC activation and maturation, affects differentiation of T cell subsets, protects allograft biological function, and prolongs graft survival.
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Affiliation(s)
- Zhicheng Xue
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xuzhi Zhang
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Maogen Chen
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xinjun Lu
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ronghai Deng
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yi Ma
- Department of Organ Transplantation, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhang YY, Jiang JL, Sun ZH, Wu C, Shi W, Xue Z, Feng SY, Yu XG. [Clinical useness of multimodal techniques in microsurgical resection of cerebral arteriovenous malformation]. Zhonghua Wai Ke Za Zhi 2017; 55:389-393. [PMID: 28464582 DOI: 10.3760/cma.j.issn.0529-5815.2017.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical useness of intraoperative functional neuronavigation and fluorescent indocyanine green(ICG) angiography as well as electrophysiological evaluation during microsurgical resection of cerebral arteriovenous malformations (AVM). Methods: A series of 42 consecutive cases with AVM underwent microsurgery by intraoperative functional neuronavigation at Department of Neurosurgery of People's Liberation Army General Hospital from January 2009 to February 2015 were retrospectively analyzed. Of the 42 patients, 29 were males and 13 were females aging from 4 to 62 years (mean age 32.6 years). Preoperative assessment included functional magnetic resonance imaging and diffusion tensor imaging to identify the relationship between lesions and eloquent areas. The results of images were integrated into three-dimensional datasets to achieve intraoperative microscopic-based functional neuronavigation during AVM resection. Operations involved in motor areas and corticospinal tract were performed under continuous electrophysiological monitoring. ICG angiography was performed at pre-dissection, post-clipping of the feeders, and post-resection of the nidus. FLOW 800 software presented a color map and ICG intensity-time curve to demostrate the vascular architecture. Postoperative digital subtraction angiography was re-examined routinely to evaluate the extent of resection. Clinical outcomes were evaluated with the modified Rankin Scale. Results: All patients underwent surgery under intraoperative navigation. Of the 42 patients, total resection was achieved in 36 cases (85.7%, 36/42) including 14 cases of AVM in eloquent areas. A total of 40 ICG angiographies were successfully performed among 11 patients. Average number of ICG injections per operation was 3.6 (ranging from 3 to 6). Feeders were visualized in 10 patients and drainers were visualized in 9 cases. The post-surgical follow-up period varied from 3 months to 70 months (mean 22.5 months). 83.8% of the patients returned to normal work and life during the followed-up period. Conclusion: Combining intraoperative neuronavigation and electrophysiological monitoring, as well as fluorescent ICG angiography contribute to microsurgical resection of cerebral AVM effectively in selecting suitable patients, further avoiding neurologic compromise as well.
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Affiliation(s)
- Y Y Zhang
- Department of Neurosurgery, People's Liberation Army General Hospital, Beijing 100853, China
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Xue Z, Chen M, Zhang X, Wang G, He X, Wu L, Ma Y. Analysis of early hepatic artery thrombosis after liver transplantation. ANZ J Surg 2017; 88:172-176. [PMID: 28239947 DOI: 10.1111/ans.13911] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/25/2016] [Accepted: 12/19/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Zhicheng Xue
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Maogen Chen
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Xuzhi Zhang
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Guodong Wang
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Xiaoshun He
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Linwei Wu
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Yi Ma
- Department of Organ Transplantation; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
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45
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Parlakian A, Paulin D, Izmiryan A, Xue Z, Li Z. Intermediate filaments in peripheral nervous system: Their expression, dysfunction and diseases. Rev Neurol (Paris) 2016; 172:607-613. [DOI: 10.1016/j.neurol.2016.07.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/29/2016] [Indexed: 12/20/2022]
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46
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Pu W, Luo Q, Palaniyappan L, Xue Z, Yao S, Feng J, Liu Z. Failed cooperative, but not competitive, interaction between large-scale brain networks impairs working memory in schizophrenia. Psychol Med 2016; 46:1211-1224. [PMID: 26743997 DOI: 10.1017/s0033291715002755] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND A large-scale network named the default mode network (DMN) dynamically cooperates and competes with an external attention system (EAS) to facilitate various cognitive functioning that is prominently impaired in schizophrenia. However, it is unclear whether the cognitive deficit in schizophrenia is related to the disrupted competition and/or cooperation between these two networks. METHOD A total of 35 schizophrenia patients and 30 healthy controls were scanned using gradient-echo echo-planar imaging during n-back working memory (WM) processing. Brain activities of the DMN and EAS were measured using general linear modelling of the functional magnetic resonance imaging data. Dynamic interaction between the DMN and EAS was decomposed into two directions using Granger causality analysis. RESULTS We observed a significant failure of DMN suppression in patients with schizophrenia, which was significantly related to WM/attentional deficit. Granger causality modelling showed that in healthy controls, while the EAS inhibitorily influenced the DMN, the DMN exerted an 'excitatory' or cooperative influence back on the EAS, especially in those with lower WM accuracy. In schizophrenia, this 'excitatory' DMN→EAS influence within the reciprocal EAS-DMN loop was significantly reduced, especially in patients with WM/attentional deficit. CONCLUSIONS The dynamic interaction between the DMN and EAS is likely to be comprised of both competitive and cooperative influences. In healthy controls, both the 'inhibitory' EAS→DMN interaction and 'excitatory' DMN→EAS interaction are correlated with WM performance. In schizophrenia, reduced 'cooperative' influence from the DMN to dorsal nodes of the EAS occurs in the context of non-suppression of the DMN and may form a possible pathophysiological substrate of WM deficit and attention disorder.
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Affiliation(s)
- W Pu
- Medical Psychological Institute,Second Xiangya Hospital,Central South University,Changsha,People's Republic of China
| | - Q Luo
- School of Life Sciences,Fudan University,Shanghai,People's Republic of China
| | - L Palaniyappan
- Department of Psychiatry,Schulich School of Medicine and Dentistry,University of Western Ontario,London,Ontario,Canada
| | - Z Xue
- Institute of Mental Health,Second Xiangya Hospital,Central South University,Changsha,People's Republic of China
| | - S Yao
- Medical Psychological Institute,Second Xiangya Hospital,Central South University,Changsha,People's Republic of China
| | - J Feng
- School of Life Sciences,Fudan University,Shanghai,People's Republic of China
| | - Z Liu
- Institute of Mental Health,Second Xiangya Hospital,Central South University,Changsha,People's Republic of China
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Affiliation(s)
- Z. Xue
- Department of clothing design and engineering, School of Textiles and Clothing; Jiangnan university; Wuxi Jiangsu province 214122 P.R China
- Research group of human centered design (HCD), Laboratoire de Génie et Matériaux Textiles (GEMTEX), Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); 2 allée Louise et Victor Champier, BP30329, F-59056 Roubaix Cedex 1 France
| | - X. Zeng
- Research group of human centered design (HCD), Laboratoire de Génie et Matériaux Textiles (GEMTEX), Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); 2 allée Louise et Victor Champier, BP30329, F-59056 Roubaix Cedex 1 France
| | - L. Koehl
- Research group of human centered design (HCD), Laboratoire de Génie et Matériaux Textiles (GEMTEX), Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); 2 allée Louise et Victor Champier, BP30329, F-59056 Roubaix Cedex 1 France
| | - L. Shen
- Department of clothing design and engineering, School of Textiles and Clothing; Jiangnan university; Wuxi Jiangsu province 214122 P.R China
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Zhang LW, Xue Z. [Multidisciplinary collaboration of skull base surgery in China: past, present and future]. Zhonghua Yi Xue Za Zhi 2016; 96:673-5. [PMID: 27055502 DOI: 10.3760/cma.j.issn.0376-2491.2016.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ma AD, Zhang Y, Xue Z, Li K. Angiogenesis of hepatocellular carcinoma under multislice spiral CT plain scan and enhanced scan. J BIOL REG HOMEOS AG 2015; 29:895-903. [PMID: 26753654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study explores the value of 64-layer spinal computed tomography (CT) in diagnosing hepatocellular carcinoma (HCC) through performing dynamic contrast-enhanced scans. The study includes analysis of enhancement presentation of HCC in dynamic contrast-enhanced scan performed by multislice spinal CT (MSCT), comparison of detection rate and positive predictive value of neoplastic foci in subdivided arterial phases and portal venous phases, optimization of optimal scanning scheme for diagnosing HCC and discussion of the value of quantitative indexes such as T-D curve, maximum enhancement rate and clearance rate in diagnosing and identifying HCC. A total of 61 lesions were detected in 40 patients with HCC who were selected from the First Peoples Hospital, Jining, Shandong, China. Density difference was observed with statistical significance between the solid part of tumor and normal liver in different periods after CT scan and enhanced scan (H = 45.208, P less than 0.01), and difference in the late arterial phase was the most obvious; enhanced peak value mostly appeared in the late arterial phase. In terms of lesion detection rate, the difference of HCC detection rate was statistically significant in early, middle and late arterial phase and early and late portal vein phases (χ² = 32.910, P = 0.001) and the rate was the highest in the late arterial phase (78.689%). Lesions were divided into 3 cm or less group (small HCC) and over 3 cm group based on the maximum parameter. Detection rate of the late arterial phase was the highest, 85% (3 cm or less) and 75.61% (over 3 cm), respectively. When lesions with high density in arterial phase and/or low density in portal venous phase were considered as positive, and moreover, those confirmed clinically or pathologically were as true positive, we found positive predictive value of the over 3 cm group reached 100% in all phases, but that of 3 cm or less group was the highest (100%) in early and late portal venous phases. Among four scanning schemes involving early, middle and late arterial phases, detection rate of the early and late arterial phases and three arterial phases were consistent, reaching the highest value (3 cm or less group: 90%; the 3 cm over group: 78.049%). This study confirmed that the late arterial phase was the best time to detect abundant blood supplied HCC. The scanning scheme involving double arterial phases (early and late), late portal venous phase and stable phase which can help improve detection rate and correct diagnosis rate of HCC, was thought to be the most effective. Using dynamic enhanced CT examination in the diagnosis of HCC is meaningful both in qualitative and quantitative diagnosis. T-D curve, in particular, can intuitively and objectively reflect enhanced characteristics of HCC, and can be used to make a preliminary diagnosis of some atypical liver cancers.
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Affiliation(s)
- A D Ma
- Department of Radiology, Shandong Jining No.1 Peoples Hospital, Jining, Shandong, China
| | - Y Zhang
- Department of Radiology, Shandong Jining No.1 Peoples Hospital, Jining, Shandong, China
| | - Z Xue
- Department of Radiology, Shandong Jining No.1 Peoples Hospital, Jining, Shandong, China
| | - K Li
- Department of Gynaecology and Obstetrics, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong Academy of Medical Sciences, Shandong, China
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Xue Z, Niu LY, An G, Guo YS, Lv SC, Ren XP. Expression of recombinant BMP-7 gene increased ossification activity in the rabbit bone mesenchymal stem cells. Eur Rev Med Pharmacol Sci 2015; 19:3056-3062. [PMID: 26367729] [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: 06/05/2023]
Abstract
OBJECTIVE The mesenchymal stem cells (MSCs), which were distributed in the bone marrow stroma, become ideal progenitor cells in bone tissue engineering because of their convenient isolation, small injury when obtained, and strong osteogenic capacity. The osteogenic differentiation of MSCs, which is indicated by the increased alkaline phosphatase (ALP) activity and the enhanced accumulation of collagen, could be induced by a strong osteogenic capacity biological factor termed bone morphogenetic protein-7 (BMP-7). Although the chemically synthesized BMP-7 was widely applied to study the osteogenic differentiation of MSCs, transferring and expressing BMP-7 gene in target cells is more desirable, especially for gene therapy, given the advantages and convenience on the stable expression of BMP-7. The aim of this study was to determine whether recombinant BMP-7-expressing MSCs would induce bone formation in vitro. MATERIALS AND METHODS BMP-7 gene was cloned from human placental tissue to construct a recombinant eukaryotic expression plasmid carrying BMP-7 gene by conjugating with eukaryotic expression vector pcDNA3.1. MSCs were isolated from rabbit bone marrow and cultured in vitro. Then they were divided into 3 groups: pcDNA3.1-BMP-7-transfected, pcDNA3.1-transfected, and untransfected. Human healthy fresh placental tissue was provided by the Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Harbin Medical University. Written informed consent was obtained from the women. One healthy male New Zealand rabbit was provided by the Laboratory Animal Center, Harbin Medical University. RESULTS A significant increase of ALP activity was detected in the supernatant of pcDNA3.1-BMP-7 transfected MSCs, and the enhanced collagen accumulation, which was inferred by the increased hydroxyproline content and RT-PCR. CONCLUSIONS These results implied that BMP-7 gene was expressed in MSCs sufficiently and was involved in inducing differentiation of MSCs into osteoblast.
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Affiliation(s)
- Z Xue
- The Second Hospital of Harbin Medical University, Harbin, China.
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