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Zhang YF, Hu MW, Guo CC, Yang X, Wang YZ, Xiang S, Xu H. [Clinical efficacy of intraarticular vancomycin in preventing early periprosthetic joint infection after primary knee arthroplasty]. Zhonghua Wai Ke Za Zhi 2024; 62:591-597. [PMID: 38682631 DOI: 10.3760/cma.j.cn112139-20231116-00224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Objective: To investigate the clinical effect of intraarticular vancomycin on early periprosthetic joint infection (PJI) in knee arthroplasty and the incidence of postoperative complications. Methods: This is a retrospective cohort study. The clinical data of 1 867 patients who underwent primary knee arthroplasty at Department of Joint Surgery, the Affiliated Hospital of Qingdao University from April 2022 to June 2023 were retrospectively analysed, including total knee arthroplasty (TKA), robotic-assisted total knee arthroplasty (RA-TKA) and unicondylar knee arthroplasty (UKA). There were 687 males and 1180 females, aged (68.0±11.2)years(range:45 to 87 years). Patients were divided into the vancomycin group and the control group according to whether or not intra-articular injection of 1 g of vancomycin powder dissolved in 30 ml of saline was performed after intraoperative joint capsule closure. In the vancomycin group, 925 patients were included, including 782 TKA, 27 RA-TKA and 116 UKA.In the control group, 942 patients were included, including 767 TKA, 99 RA-TKA and 76 UKA. Early PJI, wound complications, and vancomycin-related toxicity including acute renal collapse, ototoxicity, and allergic reactions were assessed within 3 months postoperatively. Results: No PJI was found in all patients in the vancomycin group.Five cases (0.7%,5/767) of early PJI were found in TKA patients in the control group, with a statistically significant difference (P=0.030); 1 case of early PJI was found in each RA-TKA and UKA patients, with non-significant difference compared with vancomycin group (all P>0.05). Two cases (0.3%,2/782) of incisional complications were found in TKA patients in the vancomycin group, and 4 cases (0.5%, 4/767) of incisional complications were found in TKA patients in the control group, with non-significant difference(P=0.449); no incisional complications were found in RA-TKA patients in the vancomycin group, and 1 case (1.0%,1/99) of incisional complications were found in RA-TKA patients in the control group, the difference was not statistically significant (P>0.05); no incisional complications were found in both groups of UKA patients.No vancomycin-related acute kidney injury, ototoxicity, or allergic reactions was observed in all patients. Conclusion: Intra-articular injection of 1 g of vancomycin suspension after arthrotomy closure during TKA maybe lower the risk of early PJI without increasing the risk of wound complication and vancomycin-associated systemic toxicity.
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Affiliation(s)
- Y F Zhang
- Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - M W Hu
- Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - C C Guo
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - X Yang
- Department of Operation Room, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y Z Wang
- Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S Xiang
- Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - H Xu
- Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
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Wang J, Qiu F, Zhang Z, Liu Y, Zhou Q, Dai S, Xiang S, Wei C. Clostridium butyricum Alleviates DEHP Plasticizer-Induced Learning and Memory Impairment in Mice via Gut-Brain Axis. J Agric Food Chem 2023; 71:18524-18537. [PMID: 37963287 DOI: 10.1021/acs.jafc.3c03533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) plasticizer, a well-known environmental and food pollutant, has neurotoxicity. However, it is unknown whether DEHP leads to learning and memory impairment through gut-brain axis and whether Clostridium butyricum can alleviate this impairment. Here, C57BL/6 mice were exposed to DEHP and treated with C. butyricum. Learning and memory abilities were evaluated through the Morris water maze. The levels of synaptic proteins, inflammatory cytokines, and 5-hydroxytryptamine (5-HT) were detected by immunohistochemistry or ELISA. Gut microbiota were analyzed through 16S rRNA sequencing. C. butyricum alleviated DEHP-induced learning and memory impairment and restored synaptic proteins. It significantly relieved DEHP-induced inflammation and recovered 5-HT levels. C. butyricum recovered the richness of the gut microbiota decreased by DEHP, with the Bifidobacterium genus increasing the most. Overall, C. butyricum alleviated DEHP-induced learning and memory impairment due to reduced inflammation and increased 5-HT secretion, which was partly attributed to the recovery of gut microbiota.
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Affiliation(s)
- Jin Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Feng Qiu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Zilong Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Yu Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Qian Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Siyu Dai
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
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Huang S, Zhang H, Chen W, Wang J, Wu Z, He M, Zhang J, Hu X, Xiang S. Screening of Tnfaip1-Interacting Proteins in Zebrafish Embryonic cDNA Libraries Using a Yeast Two-Hybrid System. Curr Issues Mol Biol 2023; 45:8215-8226. [PMID: 37886961 PMCID: PMC10605426 DOI: 10.3390/cimb45100518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/01/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
TNFAIP1 regulates cellular biological functions, including DNA replication, DNA repair, and cell cycle, by binding to target proteins. Identification of Tnfaip1-interacting proteins contributes to the understanding of the molecular regulatory mechanisms of their biological functions. In this study, 48 hpf, 72 hpf, and 96 hpf wild-type zebrafish embryo mRNAs were used to construct yeast cDNA library. The library titer was 1.12 × 107 CFU/mL, the recombination rate was 100%, and the average length of the inserted fragments was greater than 1000 bp. A total of 43 potential interacting proteins of Tnfaip1 were identified using zebrafish Tnfaip1 as a bait protein. Utilizing GO functional annotation and KEGG signaling pathway analysis, we found that these interacting proteins are mainly involved in translation, protein catabolic process, ribosome assembly, cytoskeleton formation, amino acid metabolism, and PPAR signaling pathway. Further yeast spotting analyses identified four interacting proteins of Tnfaip1, namely, Ubxn7, Tubb4b, Rpl10, and Ybx1. The Tnfaip1-interacting proteins, screened from zebrafish embryo cDNA in this study, increased our understanding of the network of Tnfaip1-interacting proteins during the earliest embryo development and provided a molecular foundation for the future exploration of tnfaip1's biological functions.
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Affiliation(s)
- Shulan Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Hongning Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Wen Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Jiawei Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Zhen Wu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Meiqi He
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Jian Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (S.H.); (H.Z.); (W.C.); (J.W.); (Z.W.); (M.H.); (J.Z.)
| | - Shuanglin Xiang
- Engineering Research Center for Antibodies from Experimental Animals of Hunan Province, College of Life Sciences, Hunan Normal University, Changsha 410081, China
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Xiang S, Zheng LB, Zhu L, Gao Y, Wang DS, Liu SL, Zhang S, Wang TY, Lu Y. [Radiomics-based prediction of microsatellite instability in stage Ⅱ and Ⅲ rectal cancer patients based on T2WI MRI and diffusion-weighted imaging]. Zhonghua Wai Ke Za Zhi 2023; 61:782-787. [PMID: 37491171 DOI: 10.3760/cma.j.cn112139-20230315-00106] [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: 07/27/2023]
Abstract
Objective: To examine the radiomics model based on high-resolution T2WI and diffusion weighted imaging (DWI) in predicting microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer. Methods: From February 2016 to October 2020, 175 patients with stage Ⅱ and Ⅲ rectal cancer who met the inclusion criteria were retrospectively collected. There were 119 males and 56 females, aged (63.9±9.4) years (range: 37 to 85 years), including 152 patients with microsatellite stability and 23 patients with microsatellite instability. All patients were randomly divided into the training group (n=123) and the validation group (n=52) with a ratio of 7∶3. The region of interest was labeled on the T2WI and DWI images of each patient using the ITK-SNAP software, and PyRadiomics was used to extract seven kinds of radiomics features. After removing redundant features and normalizing features, the least absolute shrinkage and selection operation were used for feature selection. One clinical model, three radiomics models and one clinical-radiomics model were constructed in the training group based on a support vector machine. The area under receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy were used to evaluate the performance of the models in the verification group. Results: Three clinical features (age, degree of tumor differentiation, and distance from the lower edge of the tumor to the anal edge) and six radiomics features (two DWI-related features and four T2WI-related features) most related to microsatellite status of rectal cancer patients were selected. The AUC of the clinical-radiomics model in the training group was 0.95. In the validation group, the AUC was 0.81, better than the clinical model (0.68, Z=0.71, P=0.04), and equivalent to the T2WI+DWI model (0.82, Z=0.21, P=0.83). Conclusions: Radiomic features based on preoperative T2WI and DWI were related to microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer and showed a high classification efficiency. The model based on the features provided a noninvasive and convenient tool for preoperative determination of microsatellite stability in rectal cancer patients.
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Affiliation(s)
- S Xiang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - L B Zheng
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - L Zhu
- Shandong Provincial Key Laboratory of Digital Medicine and Computer-Assisted Surgery, Qingdao 266000, China
| | - Y Gao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - D S Wang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S L Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S Zhang
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - T Y Wang
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y Lu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
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Long S, Huang G, Ouyang M, Xiao K, Zhou H, Hou A, Li Z, Zhong Z, Zhong D, Wang Q, Xiang S, Ding X. Epigenetically modified AP-2α by DNA methyltransferase facilitates glioma immune evasion by upregulating PD-L1 expression. Cell Death Dis 2023; 14:365. [PMID: 37330579 PMCID: PMC10276877 DOI: 10.1038/s41419-023-05878-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 06/19/2023]
Abstract
Programmed death-ligand 1 (PD-L1) ensures that tumor cells escape T-cell-mediated tumor immune surveillance. However, gliomas are characteristic of the low immune response and high-resistance therapy, it is necessary to understand molecular regulatory mechanisms in glioblastoma, especially the limited regulation of PD-L1 expression. Herein, we show that low expression of AP-2α is correlated with high expression of PD-L1 in high-grade glioma tissues. AP-2α binds directly to the promoter of the CD274 gene, not only inhibits the transcriptional activity of PD-L1 but enhances endocytosis and degradation of PD-L1 proteins. Overexpression of AP-2α in gliomas enhances CD8+ T cell-mediated proliferation, effector cytokine secretion, and cytotoxicity in vitro. Tfap2a could increase the cytotoxic effect of Cd8+ T cells in CT26, B16F10, and GL261 tumor-immune models, improve anti-tumor immunity, and promote the efficacy of anti-PD-1 therapy. Finally, the EZH2/H3K27Me3/DNMT1 complex mediates the methylation modification of AP-2α gene and maintains low expression of AP-2α in gliomas. 5-Aza-dC (Decitabine) treatment combines with anti-PD-1 immunotherapy to efficiently suppress the progression of GL261 gliomas. Overall, these data support a mechanism of epigenetic modification of AP-2α that contributes to tumor immune evasion, and reactivation of AP-2α synergizes with anti-PD-1 antibodies to increase antitumor efficacy, which may be a broadly applicable strategy in solid tumors.
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Affiliation(s)
- Shengwen Long
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Guixiang Huang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Changsha, 410013, China
| | - Mi Ouyang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Kai Xiao
- Department of Neurosurgery, Xiangya Hospital of Central South University, Changsha, Hunan, 410008, China
| | - Hao Zhou
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Anyi Hou
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Zhiwei Li
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Zhe Zhong
- Department of Neurosurgery, Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, Hunan, 410013, China
| | - Dongmei Zhong
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Qinghao Wang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Shuanglin Xiang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Xiaofeng Ding
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha, 410081, China.
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Changsha, 410013, China.
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Qiu F, He S, Zhang Z, Dai S, Wang J, Liu N, Li Z, Hu X, Xiang S, Wei C. MiR-93 alleviates DEHP plasticizer-induced neurotoxicity by negatively regulating TNFAIP1 and inhibiting ubiquitin-mediated degradation of CK2β. Food Chem Toxicol 2023:113888. [PMID: 37302538 DOI: 10.1016/j.fct.2023.113888] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/28/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is a plasticizer that is widely used in various products, such as plastic packaging in food industries. As an environmental endocrine disruptor, it induces adverse effects on brain development and function. However, the molecular mechanisms by which DEHP induces learning and memory impairment remain poorly understood. Herein, we found that DEHP impaired learning and memory in pubertal C57BL/6 mice, decreased the number of neurons, downregulated miR-93 and the β subunit of casein kinase 2 (CK2β), upregulated tumor necrosis factor-induced protein 1 (TNFAIP1), and inhibited Akt/CREB pathway in mouse hippocampi. Coimmunoprecipitation and western blotting assays revealed that TNFAIP1 interacted with CK2β and promoted its degradation by ubiquitination. Bioinformatics analysis showed a miR-93 binding site in the 3'-untranslated region of Tnfaip1. A dual-luciferase reporter assay revealed that miR-93 targeted TNFAIP1 and negatively regulated its expression. MiR-93 overexpression prevented DEHP-induced neurotoxicity by downregulating TNFAIP1 and then activating CK2/Akt/CREB pathway. These data indicate that DEHP upregulates TNFAIP1 expression by downregulating miR-93, thus promoting ubiquitin-mediated degradation of CK2β, subsequently inhibiting Akt/CREB pathway, and finally inducing learning and memory impairment. Therefore, miR-93 can relieve DEHP-induced neurotoxicity and may be used as a potential molecular target for prevention and treatment of related neurological disorders.
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Affiliation(s)
- Feng Qiu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Simei He
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Zilong Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Siyu Dai
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Jin Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Ning Liu
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, China
| | - Zhiwei Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
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Huang S, Zhang H, Chen W, Su N, Yuan C, Zhang J, Xiang S, Hu X. CRISPR/Cas9-Mediated Knockout of tnfaip1 in Zebrafish Plays a Role in Early Development. Genes (Basel) 2023; 14:genes14051005. [PMID: 37239365 DOI: 10.3390/genes14051005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
TNF α-induced protein 1 (TNFAIP1) was first identified in human umbilical vein endothelial cells and can be induced by tumor necrosis factor α (TNFα). Early studies have found that TNFAIP1 is involved in the development of many tumors and is closely associated with the neurological disorder Alzheimer's disease. However, little is known about the expression pattern of TNFAIP1 under physiological conditions and its function during embryonic development. In this study, we used zebrafish as a model to illustrate the early developmental expression pattern of tnfaip1 and its role in early development. First, we examined the expression pattern of tnfaip1 during early zebrafish development using quantitative real-time PCR and whole mount in situ hybridization and found that tnfaip1 was highly expressed in early embryonic development and, subsequently, expression became localized to anterior embryonic structures. To investigate the function of tnfaip1 during early development, we constructed a model of a stably inherited tnfaip1 mutant using the CRISPR/Cas9 system. Tnfaip1 mutant embryos showed significant developmental delays as well as microcephaly and microphthalmia. At the same time, we found decreased expression of the neuronal marker genes tuba1b, neurod1, and ccnd1 in tnfaip1 mutants. Analysis of transcriptome sequencing data revealed altered expression of the embryonic development related genes dhx40, hspa13, tnfrsf19, nppa, lrp2b, hspb9, clul1, zbtb47a, cryba1a, and adgrg4a in the tnfaip1 mutants. These findings suggest an important role for tnfaip1 in the early development of zebrafish.
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Affiliation(s)
- Shulan Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Hongning Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Wen Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Vascular Biology and Translational Medicine, Medical School, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Na Su
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Changyue Yuan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Jian Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Shuanglin Xiang
- Engineering Research Center for Antibodies from Experimental Animals of Hunan Province, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
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Xiang S, Li Y, Li Y, Zhang J, Pan W, Lu Y, Liu S. Increased Dietary Niacin Intake Improves Muscle Strength, Quality, and Glucose Homeostasis in Adults over 40 Years of Age. J Nutr Health Aging 2023; 27:709-718. [PMID: 37754210 DOI: 10.1007/s12603-023-1967-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/17/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND AND AIMS Age-related loss of skeletal muscle mass and strength begins at 40 years of age, and limited evidence suggests that niacin supplementation increases levels of nicotinamide adenine dinucleotide in mouse muscle tissue. In addition, skeletal muscle has a key role in the body's processing of glucose. Therefore, this study aimed to investigate the relationship between dietary niacin and skeletal muscle mass, strength, and glucose homeostasis in people aged 40 years and older. METHODS This study was an American population-based cross-sectional analysis using data from the National Health and Nutrition Examination Survey (NHANES). Considering that some outcomes are only measured in specific survey cycles and subsamples, we established three data sets: a grip strength dataset (2011-2014, n=3772), a body mass components dataset (2011-2018, n=3279), and a glucose homeostasis dataset (1999-2018, n=9189). Dietary niacin and covariates were measured in all survey cycles. Linear regression or logistic regression models that adjusted for several main covariates, such as physical activity and diet, was used to evaluate the relationship between dietary niacin and grip strength, total lean mass, appendicular lean mass, total fat, trunk fat, total bone mineral content, homeostasis model assessment of insulin resistance (HOMA-IR), fasting blood glycose, fasting insulin and sarcopenia risk. Subgroup analyses, a trend test, an interaction test, and a restricted cubic spline were used for further exploration. RESULTS Higher dietary niacin intake was significantly correlated with higher grip strength (β 0.275, 95% confidence intervals [CI] 0.192-0.357), higher total lean mass (β 0.060, 95% CI 0.045-0.074), higher appendicular lean mass (β 0.025, 95% CI 0.018-0.033), and higher total bone mineral content (β 0.005, 95% CI 0.004-0.007). By contrast, higher dietary niacin intake was significantly associated with lower total fat (β -0.061, 95% CI -0.076 to -0.046), lower trunk fat (β -0.041, 95% CI -0.050 to -0.032) and lower sarcopenia risk (OR 0.460, 95% CI 0.233 to 0.907). In addition, dietary niacin significantly reduced HOMA-IR, fasting blood glucose (in participants without diabetes), and fasting insulin (p <0.05). CONCLUSION Niacin is associated with improved body composition (characterized by increased muscle mass and decreased fat content) and improved glucose homeostasis in dietary doses. Dietary niacin supplementation is a feasible way to alleviate age-related muscular loss.
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Affiliation(s)
- S Xiang
- Yun Lu, MD, PhD, Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China, , 0000-0003-2253-2983; Shang-Long Liu, MD, PhD, Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China, , 0000-0002-5828-4718
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Wang J, Li YJ, Li XX, Sun YX, Xiang S, Zhang MQ, Li XJ, Qiu ZK. Late-Night Overeating and All-Cause and Cardiovascular Disease Mortality in Adults Aged ≥ 50: A Cohort Study. J Nutr Health Aging 2023; 27:701-708. [PMID: 37754209 DOI: 10.1007/s12603-023-1966-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/17/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Late-night overeating (LNOE) is closely associated with many health risk factors, but whether LNOE can increase the risk of death remains unknown. Thus, the prospective cohort study aimed to investigate the relationship between LNOE and mortality using data from the National Health and Nutrition Examination Survey. METHODS 11,893 participants aged 50 years and older were included in the study. Dietary information was obtained through 24-h dietary recall interviews. Cox regression, subgroup, sensitivity, and restricted cubic spline analyses were used to assess the association between LNOE and mortality. RESULTS During a median follow-up of 8.3 years, 2,498 deaths occurred. After adjusting for major confounders, compared to the non-late-night eating (NLNE) group, the LNOE group was associated with higher risks of all-cause (HR = 1.47, 95% CI = 1.06-2.04) and cardiovascular disease (CVD) mortality (HR = 2.02, 95% CI = 1.13-3.60). No significant association was found between late-night eating (LNE) and mortality. Subgroup analyses showed that the LNOE group had a greater risk of all-cause and CVD mortality in participants older than 70 years, with alcohol consumption and hypertension and demonstrated an increased risk of all-cause mortality in males and higher CVD mortality in females. CONCLUSION The habit of LNOE was an independent risk factor for all-cause and CVD mortality in US adults aged 50 years and older, which was also influenced by age, sex, alcohol consumption, and hypertension.
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Affiliation(s)
- J Wang
- Zhen-kang Qiu, PhD, MD, Interventional Medical Center, The Affiliated Hospital of Qingdao University, 16, Jiangsu Road, Qingdao 266003, Shandong Province, China, Tel: 86-0532-82913275, Fax: 86-0532-82913275,
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Pan X, Xiang S, Zhu Y, Yang M. Co-cultivation with Endophytic Fungi Differentially Shaped the Anthocyanin Profiles in Post-veraison Grape Berries. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Adeeb N, Dibas M, Griessenauer CJ, Cuellar HH, Salem MM, Xiang S, Enriquez-Marulanda A, Hong T, Zhang H, Taussky P, Grandhi R, Waqas M, Aldine AS, Tutino VM, Aslan A, Siddiqui AH, Levy EI, Ogilvy CS, Thomas AJ, Ulfert C, Möhlenbruch MA, Renieri L, Bengzon Diestro JD, Lanzino G, Brinjikji W, Spears J, Vranic JE, Regenhardt RW, Rabinov JD, Harker P, Müller-Thies-Broussalis E, Killer-Oberpfalzer M, Islak C, Kocer N, Sonnberger M, Engelhorn T, Kapadia A, Yang VXD, Salehani A, Harrigan MR, Krings T, Matouk CC, Mirshahi S, Chen KS, Aziz-Sultan MA, Ghorbani M, Schirmer CM, Goren O, Dalal SS, Finkenzeller T, Holtmannspötter M, Buhk JH, Foreman PM, Cress MC, Hirschl RA, Reith W, Simgen A, Janssen H, Marotta TR, Stapleton CJ, Patel AB, Dmytriw AA. Learning Curve for Flow Diversion of Posterior Circulation Aneurysms: A Long-Term International Multicenter Cohort Study. AJNR Am J Neuroradiol 2022; 43:1615-1620. [PMID: 36229166 PMCID: PMC9731249 DOI: 10.3174/ajnr.a7679] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 06/28/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE Flow diversion has gradually become a standard treatment for intracranial aneurysms of the anterior circulation. Recently, the off-label use of the flow diverters to treat posterior circulation aneurysms has also increased despite initial concerns of rupture and the suboptimal results. This study aimed to explore the change in complication rates and treatment outcomes across time for posterior circulation aneurysms treated using flow diversion and to further evaluate the mechanisms and variables that could potentially explain the change and outcomes. MATERIALS AND METHODS A retrospective review using a standardized data set at multiple international academic institutions was performed to identify patients with ruptured and unruptured posterior circulation aneurysms treated with flow diversion during a decade spanning January 2011 to January 2020. This period was then categorized into 4 intervals. RESULTS A total of 378 procedures were performed during the study period. Across time, there was an increasing tendency to treat more vertebral artery and fewer large vertebrobasilar aneurysms (P = .05). Moreover, interventionalists have been increasingly using fewer overlapping flow diverters per aneurysm (P = .07). There was a trend toward a decrease in the rate of thromboembolic complications from 15.8% in 2011-13 to 8.9% in 2018-19 (P = .34). CONCLUSIONS This multicenter experience revealed a trend toward treating fewer basilar aneurysms, smaller aneurysms, and increased usage of a single flow diverter, leading to a decrease in the rate of thromboembolic and hemorrhagic complications.
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Affiliation(s)
- N Adeeb
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - M Dibas
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - C J Griessenauer
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - H H Cuellar
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - M M Salem
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - S Xiang
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - A Enriquez-Marulanda
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - T Hong
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - H Zhang
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - P Taussky
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
- Department of Neurosurgery (P.T., R.G.), University of Utah, Salt Lake City, Utah
| | - R Grandhi
- Department of Neurosurgery (P.T., R.G.), University of Utah, Salt Lake City, Utah
| | - M Waqas
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - A S Aldine
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - V M Tutino
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - A Aslan
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - A H Siddiqui
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - E I Levy
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - C S Ogilvy
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - A J Thomas
- Department of Neurological Surgery (A.J.T.), Cooper University Health Care, Cooper Medical School of Rowan University, Camden, New Jersey
| | - C Ulfert
- Department of Neuroradiology (C.U., M.A.M.), Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - M A Möhlenbruch
- Department of Neuroradiology (C.U., M.A.M.), Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - L Renieri
- Department of Interventional Neuroradiology (L.R.), University of Florence, Florence, Italy
| | - J D Bengzon Diestro
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - G Lanzino
- Department of Neurological Surgery (G.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - W Brinjikji
- Department of Neurological Surgery (G.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - J Spears
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - J E Vranic
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - R W Regenhardt
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - J D Rabinov
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - P Harker
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - E Müller-Thies-Broussalis
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - M Killer-Oberpfalzer
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - C Islak
- Department of Neuroradiology (C.I., N.K.), Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - N Kocer
- Department of Neuroradiology (C.I., N.K.), Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - M Sonnberger
- Department of Neuroradiology (M.S.), Kepler Universitätsklinikum Linz, Linz, Austria
| | - T Engelhorn
- Department of Neuroradiology (T.E.), University Hospital Erlangen, Erlangen, Germany
| | - A Kapadia
- Departments of Medical Imaging and Neurosurgery (A.K.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - V X D Yang
- Neurointerventional Program (V.X.D.Y., A.A.D.), Departments of Medical Imaging & Clinical Neurological Sciences, London Health Sciences Centre, Western University, Ontario, Canada
| | - A Salehani
- Department of Neurosurgery (A. Salehani, M.R.H.), University of Alabama at Birmingham, Birmingham, Alabama
| | - M R Harrigan
- Department of Neurosurgery (A. Salehani, M.R.H.), University of Alabama at Birmingham, Birmingham, Alabama
| | - T Krings
- Division of Interventional Neuroradiology (T.K.), Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - C C Matouk
- Department of Neurosurgery (C.C.M.), Yale School of Medicine, New Haven, Connecticut
| | - S Mirshahi
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - K S Chen
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - M A Aziz-Sultan
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - M Ghorbani
- Division of Vascular and Endovascular Neurosurgery (M.G.), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - C M Schirmer
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - O Goren
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - S S Dalal
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - T Finkenzeller
- Institute of Radiology and Neuroradiology (T.F., M.H.), Klinikum Nuernberg Sued, Paracelsus Medical University Nuernberg, Nuernberg, Germany
| | - M Holtmannspötter
- Institute of Radiology and Neuroradiology (T.F., M.H.), Klinikum Nuernberg Sued, Paracelsus Medical University Nuernberg, Nuernberg, Germany
- Department of Neuroradiology (M.H.), Klinikum Weiden, Weiden, Germany
| | - J-H Buhk
- Department of Neuroradiology (J.-H.B.), University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - P M Foreman
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - M C Cress
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - R A Hirschl
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - W Reith
- Clinic for Diagnostic and Interventional Neuroradiology (W.R., A. Simgen), Universitätsklinikum des Saarlandes, Homburg/Saar, Germany
| | - A Simgen
- Clinic for Diagnostic and Interventional Neuroradiology (W.R., A. Simgen), Universitätsklinikum des Saarlandes, Homburg/Saar, Germany
| | - H Janssen
- Institute for Neuroradiology (H.J.), Klinikum Ingolstadt, Ingolstadt, Germany
| | - T R Marotta
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - C J Stapleton
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - A B Patel
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - A A Dmytriw
- Neurointerventional Program (V.X.D.Y., A.A.D.), Departments of Medical Imaging & Clinical Neurological Sciences, London Health Sciences Centre, Western University, Ontario, Canada
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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Wang T, You F, Li Y, Xiang S, Wu H, Meng H, Yang N, Zhang B, Yang L. 759P Preconditioning with irradiation enhances efficacy of B7-H3-CAR-T in treating solid tumor models. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.885] [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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Wu S, Liu M, Hu X, He C, Zhao C, Xiang S, Zeng Y. Evaluation of pentaerythritol-based and trimethylolpropane-based cationic lipidic materials for gene delivery. Bioorg Med Chem Lett 2022; 62:128635. [PMID: 35202809 DOI: 10.1016/j.bmcl.2022.128635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
Abstract
The chemical and physical structure of cationic liposomes pays an important effect on their gene transfection efficiency. Investigation on the structure-function relationship of cationic liposomes will guide the design of novel cationic liposomes with high transfection efficiency and biosafety. In this paper, two novel series of lipids based on the backbone of pentaerythritol and trimethylolpropane were discovered, and their gene transfection efficiencies were assayed in vitro. The four lipids 8c, 9c, 14b, and 15b, exhibited much better transfection efficiency in the HEK293 cell lines compared with Lipo2000, lipid 9c also showed good transfection efficiency in the SW480 cell lines. And the structure-efficiency relationship revealed that a hydroxyethyl polar head group boosted transfer potency in trimethylolpropane-type lipids, but reduced in pentaerythritol-type lipids.
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Affiliation(s)
- Shuang Wu
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Meiyan Liu
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
| | - Chengxi He
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Chunyan Zhao
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
| | - Youlin Zeng
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China.
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Zhang H, Li Y, Xun Y, Liu H, Wei C, Wang H, Yang X, Yuan S, Liu N, Xiang S. Polydatin protects neuronal cells from hydrogen peroxide damage by activating CREB/Ngb signaling. Mol Med Rep 2021; 25:9. [PMID: 34751416 PMCID: PMC8600421 DOI: 10.3892/mmr.2021.12525] [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: 06/03/2021] [Accepted: 10/15/2021] [Indexed: 11/06/2022] Open
Abstract
Oxidative stress‑induced neuronal cell death contributes significantly to the physiological processes of a number of neurological disorders. Polydatin (PD) has been reported to protect against Alzheimer's disease (AD), ischemic stroke and traumatic brain injury. However, the underlying neuroprotective mechanisms remain to be elucidated. The current study suggested that PD activates AKT/cAMP response element‑binding protein (CREB) signaling and induces neuroglobin (Ngb) to protect neuronal cells from hydrogen peroxide (H2O2) in vitro. PD inhibited the H2O2‑induced neuronal cell death of primary mouse cortical neurons and N2a cells. Functional studies showed that PD attenuated H2O2‑induced mitochondrial dysfunction and mitochondrial reactive oxygen species production. Mechanistically, PD was verified to induce the phosphorylation of AKT and CREB and increase the protein level of Ngb. The luciferase assay results showed that Ngb transcriptional activity was activated by CREB, especially after PD treatment. It was further indicated that PD increased the transcription of Ngb by enhancing the binding of CREB to the promoter region of Ngb. Finally, Ngb knockdown largely attenuated the neuroprotective role of PD against H2O2. The results indicated that PD protected neuronal cells from H2O2 by activating CREB/Ngb signaling in neuronal cells, indicating that PD has a neuroprotective effect against neurodegenerative diseases.
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Affiliation(s)
- Huihui Zhang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Yadan Li
- Department of Environmental Science, Changsha Environmental Protection College, Changsha, Hunan 410004, P.R. China
| | - Yu Xun
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Hui Liu
- Department of Environmental Science, Changsha Environmental Protection College, Changsha, Hunan 410004, P.R. China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Hao Wang
- Department of Neurosurgery, Southern Medical University Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou, Guangdong 510020, P.R. China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Shishan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Ning Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, P.R. China
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Ouyang Y, Chen H, Lin G, Xiang S, Qin J, Gong F, Li X. Heterotopic Cesarean Scar Pregnancy: An Analysis of 20 Cases Following in vitro Fertilization-Embryo Transfer. J Ultrasound Med 2021; 40:2239-2249. [PMID: 33470465 DOI: 10.1002/jum.15610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 11/27/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
We report a series of 20 cases of heterotopic cesarean scar pregnancy in this study. The results show that transvaginal sonography offers highly accurate diagnoses of heterotopic cesarean scar pregnancy during the first trimester. Careful exclusion of cesarean scar pregnancy is of great clinical importance for patients with a history of cesarean section after in vitro fertilization-embryo transfer, even when an intrauterine pregnancy has been detected. We recommend single embryo transfer for patients with a history of cesarean section. Expectant management may provide the opportunity for a live cesarean scar pregnancy to develop, albeit at high risks of placenta accreta and hemorrhage, and this needs further verification in the future.
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Affiliation(s)
- Yan Ouyang
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- College of Life Science, Hunan Normal University, Changsha, China
- Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Hui Chen
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Ge Lin
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Shuanglin Xiang
- College of Life Science, Hunan Normal University, Changsha, China
| | - Jiabi Qin
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Fei Gong
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Xihong Li
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
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16
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Shang GQ, Xiang S, Guo CC, Guo JJ, Zhang HN, Wang YZ, Xu H. [Diagnostic value of platelet associated biomarkers in chronic periprosthetic joint infection]. Zhonghua Wai Ke Za Zhi 2021; 59:767-772. [PMID: 34404175 DOI: 10.3760/cma.j.cn112139-20210401-00152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the diagnostic value of platelet count(PC),PC to mean platelet volume(MPV) ratio(PC/MPV) and plateletcrit(PCT) in chronic periprosthetic joint infection(PJI). Method: The medical records of 159 patients who underwent hip or knee revisions at Department of Joint Surgery,Affiliated Hospital of Qingdao University from August 2013 to June 2019 were retrospectively reviewed. There were 51 patients(26 knees and 25 hips) in the PJI group,which included 28 males and 23 females,aged (68.0±11.8)years (range:32 to 84 years)with a body mass index(BMI)of (26.1±3.6) kg/m².There were 116 patients(19 knees and 97 hips) in the aseptic loosening(AL) group,including 67 males and 49 females,aged (70.3±8.9)years(range:49 to 89 years)with a BMI of (25.0±3.6)kg/m².The plasma C-reactive protein(CRP),erythrocyte sedimentation rate(ESR),PC,MPV,PC/MPV and PCT levels of the two groups were recorded and analyzed. Receiver operating characteristic curve was used to calculate the sensitivity and specificity of each biomarker,expect for MPV,and the diagnostic value of each biomarker was compared according to the area under the curve(AUC).Independent-sample t test or Mann-Whitney U test were used for comparison between groups. Result: Compared with AL group,AJI group had significantly higher levels of CRP,ESR,PC,PC/MPV and PCT(all P<0.05),but lower level of MPV (P<0.05).The AUCs for CRP,ESR,PC,PC/MPV and PCT were 0.820, 0.829, 0.689, 0.668 and 0.676,respectively. Based on the Youden index,the optimal predictive cutoff for CRP was 11.12 mg/L,with a sensitivity of 74.4% and a specificity of 87.1%.The optimal predictive cutoff for ESR was 17.60 mm/1 h,with a sensitivity of 81.4% and a specificity of 75.3%.The optimal predictive cutoff for PC was 243.00×109/L,with a sensitivity of 60.6% and a specificity of 71.8%.The optimal predictive cutoff for PC/MPV was 24.95,the sensitivity was 58.1% and the specificity was 74.1%.And the optimal predictive cutoff for PCT was 0.24%,with a sensitivity of 69.8% and a specificity of 63.5%. Conclusion: PC,PC to MPV ratio and PCT were of limited value to diagnose PJI.
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Affiliation(s)
- G Q Shang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - S Xiang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - C C Guo
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - J J Guo
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - H N Zhang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - Y Z Wang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - H Xu
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
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17
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Xie Y, Zhu S, Zang J, Wu G, Wen Y, Liang Y, Long Y, Guo W, Zang C, Hu X, Fan G, Xiang S, Zhang J. ADNP prompts the cisplatin-resistance of bladder cancer via TGF-β-mediated epithelial-mesenchymal transition (EMT) pathway. J Cancer 2021; 12:5114-5124. [PMID: 34335928 PMCID: PMC8317519 DOI: 10.7150/jca.58049] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/19/2021] [Indexed: 12/31/2022] Open
Abstract
Activity-dependent neuroprotective protein (ADNP) is vital for embryonic development and brain formation. Besides, the upregulated expression of ADNP enhances tumorigenesis in some human tumors like bladder cancer (BC). However, the potential roles of ADNP in drug resistance and the related mechanisms in BC is unknown. We performed this study to elucidate the influence of ADNP in the chemoresistance of BC and tried to explore the underlying molecular mechanism. The expressions of ADNP in BC from progression and non-progression patient specimens were measured by quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC). In vitro experiments including colony formation, cell counting kit-8 (CCK-8), wound healing, and in vivo tumorigenesis assay were performed to explore the effects of ADNP on chemoresistance of BC. The impacts of ADNP on TGF-β/Smad signaling pathways were explored by western blot. Our results showed that the expression of ADNP mRNA and protein were significantly upregulated in BC tissues of the patients who suffered tumor-progression via RT-PCR and western blot. Cox regression survival analysis revealed that patients with high ADNP expression closely linked to shorter tumor-free survival. ADNP downregulation in BC showed more sensitive to cisplatin in vivo, while ADNP overexpression showed the opposite results. Additionally, we confirmed that ADNP promoted cell migration and EMT, thereby inducing cisplatin resistance, which may be related to TGF-β / Smad signaling pathway.
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Affiliation(s)
- Yu Xie
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, 410081 Changsha, China.,Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China
| | - Shuai Zhu
- Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China
| | - Jinglei Zang
- Changsha Health Vocational College, 410600 Changsha, China
| | - Guanlin Wu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, 200433 Shanghai, China
| | - Yuheng Wen
- Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China
| | - Yu Liang
- Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China.,Pingxiang Maternal and Child Care Hospital, 337000 Pingxiang, China
| | - Ying Long
- Clinical Translational Research Center, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China
| | - Weiming Guo
- The 2nd Affiliated Hospital of South China University, 421001 Hengyang, China
| | - Chuanbing Zang
- Medizinische Klinik m. S. Hämatologie u. Onkologie, Campus Bejamin Franklin, Unviersitätsmedizin Berlin Charité, 12203 Berlin, Germany
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, 410081 Changsha, China
| | - Gang Fan
- Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, 410013 Changsha, China.,Department of Urology, Huazhong University of Science and Technology Union Shenzhen Hospital; the 6th Affiliated Hospital of Shenzhen University Health Science Center, 518060 Shenzhen, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, 410081 Changsha, China
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, 410081 Changsha, China
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18
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Zhang M, Zhang M, Fu X, Meng H, Chen D, Wang M, Zhang L, Li L, Li X, Wang X, Sun Z, Yu H, Li Z, Nan F, Chang Y, Zhou Z, Yan J, Li J, Wang Y, You F, Wang Y, Xiang S, Chen Y, Pan G, Xu H, Zhang B, Yang L. A SINGLE‐ARM, OPEN‐LABEL, PILOT TRIAL OF AUTOLOGOUS CD7‐CAR‐T CELLS FOR CD7 POSITIVE RELAPSED AND REFRACTORY T‐LYMPHOBLASTIC LEUKEMIA/LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.181_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Fu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Meng
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - D. Chen
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - M. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - L. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Wang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Sun
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Yu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - F. Nan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Chang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Zhou
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Yan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Wang
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - F. You
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - S. Xiang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Chen
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - G. Pan
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - H. Xu
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - B. Zhang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Yang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
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19
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Gong M, Zhang X, Wang Y, Mao G, Ou Y, Wei C, Hu X, Xiang S. DDX21 interacts with nuclear AGO2 and regulates the alternative splicing of SMN2. Biosci Biotechnol Biochem 2021; 85:272-279. [PMID: 33604619 DOI: 10.1093/bbb/zbaa029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/17/2020] [Indexed: 01/30/2023]
Abstract
AGO2 is the only member of mammalian Ago protein family that possesses the catalytic activity and plays a central role in gene silencing. Recently researches reported that multiple gene silencing factors, including AGO2, function in the nuclei. The molecular mechanisms of the gene silencing factors functioning in nuclei are conducive to comprehend the roles of gene silencing in pretranslational regulation of gene expression. Here, we report that AGO2 interacts with DDX21 indirectly in an RNA-dependent manner by Co-IP and GST-Pulldown assays and the 2 proteins present nuclei foci in the immunofluorescence experiments. We found that DDX21 up-regulated the protein level of AGO2 and participated in target gene, SNM2, alternative splicing involved in AGO2 by the indirect interaction with AGO2, which produced different transcripts of SMN2 in discrepant expression level. This study laid important experiment foundation for the further analysis of the nuclear functions of gene silencing components.
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Affiliation(s)
- Mengting Gong
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China.,College of Physical Education, Hunan University of Finance and Economics, Changsha, China
| | - Xi Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yaru Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Guiyan Mao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yangqi Ou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
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20
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Ouyang Y, Qin J, Lin G, Xiang S, Li X. Reference intervals of gestational sac, yolk sac, embryonic length, embryonic heart rate at 6-10 weeks after in vitro fertilization-embryo transfer. BMC Pregnancy Childbirth 2020; 20:533. [PMID: 32928137 PMCID: PMC7488996 DOI: 10.1186/s12884-020-03186-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 08/17/2020] [Indexed: 11/18/2022] Open
Abstract
Background Accurately determining the normal range of early pregnancy markers can help to predict adverse pregnancy outcomes. The variance in ovulation days leads to uncertain accuracy of reference intervals for natural pregnancies. While the gestational age (GA) is accurate estimation during in vitro fertilization-embryo transfer (IVF-ET). Thus, the objective of this research is to construct reference intervals for gestational sac diameter (GSD), yolk sac diameter (YSD), embryonic length (or crown–rump length, CRL) and embryonic heart rate (HR) at 6–10 gestational weeks (GW) after IVF-ET. Methods From January 2010 to December 2016, 30,416 eligible singleton pregnancies were retrospectively recruited. All included participants had full records of early ultrasound measurements and phenotypically normal live neonates after 37 GW, with birth weights > the 5th percentile for gestational age. The curve-fitting method was used to screen the optimal models to predict GSD, CRL, YSD and HR based on gestational days (GD) and GW. Additionally, the percentile method was used to calculate the 5th, 50th, and 95th percentiles. Results There were significant associations among GSD, CRL, YSD, HR and GD and GW, the models were GSD = − 29.180 + 1.070 GD (coefficient of determination [R2] = 0.796), CRL = − 11.960 - 0.147 GD + 0.011 GD2 (R2 = 0.976), YSD = − 2.304 + 0.184 GD - 0.011 GD2 (R2 = 0.500), HR = − 350.410 + 15.398 GD - 0.112 GD2 (R2 = 0.911); and GSD = − 29.180 + 7.492 GW (R2 = 0.796), CRL = − 11.960 - 1.028 GW + 0.535 GW2 (R2 = 0.976), YSD = − 2.304 + 1.288 GW - 0.054 GW2 (R2 = 0.500), HR = − 350.410 + 107.788 GW - 5.488 GW2 (R2 = 0.911), (p < 0.001). Conclusions Reference intervals for GSD, YSD, HR and CRL at 6–10 gestational weeks after IVF-ET were established.
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Affiliation(s)
- Yan Ouyang
- College of Life Science, Hunan Normal University, Changsha, China.,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.,Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Jiabi Qin
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Ge Lin
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.,Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China
| | - Shuanglin Xiang
- College of Life Science, Hunan Normal University, Changsha, China
| | - Xihong Li
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China. .,Clinical Research Center For Reproduction and Genetics in Hunan Province, Changsha, China.
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21
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Xun Y, Tang Y, Hu L, Xiao H, Long S, Gong M, Wei C, Wei K, Xiang S. Corrigendum: Purification and Identification of miRNA Target Sites in Genome Using DNA Affinity Precipitation. Front Genet 2020; 11:909. [PMID: 32973874 PMCID: PMC7472729 DOI: 10.3389/fgene.2020.00909] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 11/24/2022] Open
Affiliation(s)
- Yu Xun
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Yingxin Tang
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Linmin Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Hui Xiao
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Shengwen Long
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Mengting Gong
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Chenxi Wei
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Ke Wei
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
- Medical School, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Ke Wei
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
- Shuanglin Xiang
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22
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Yi J, Zhu M, Qiu F, Zhou Y, Shu P, Liu N, Wei C, Xiang S. TNFAIP1 Mediates Formaldehyde-Induced Neurotoxicity by Inhibiting the Akt/CREB Pathway in N2a Cells. Neurotox Res 2020; 38:184-198. [PMID: 32335808 DOI: 10.1007/s12640-020-00199-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 03/20/2020] [Accepted: 03/31/2020] [Indexed: 02/07/2023]
Abstract
Formaldehyde (FA) is a common air pollutant. Exposure to exogenous FA can cause damage to the nervous system, such as learning and memory impairment, balance dysfunction, and sleep disorders. Excessive production of endogenous FA also causes memory impairment and is thought to be associated with Alzheimer's disease (AD). Tumor necrosis factor alpha-induced protein 1 (TNFAIP1) plays a crucial role in neurodevelopment and neurological diseases. However, the role of TNFAIP1 in FA-induced neurotoxicity is unclear. Herein, using a mouse neuroblastoma cell line (N2a cells), we explored the mechanism of TNFAIP1 in FA-induced neurotoxicity, the involvement of the Akt/CREB signaling pathway, and how the expression of TNFAIP1 is regulated by FA. We found that exposure to 100 μM or 200 μM FA for 24 h led to decreased cell viability, increased cell apoptosis and neurite retraction, increased reactive oxygen species (ROS) levels, upregulated protein expression of TNFAIP1 and decreased the levels of phosphorylated Akt and CREB in the Akt/CREB pathway. Knockdown of TNFAIP1 using a TNFAIP1 small interfering RNA (siRNA) expression vector prevented FA from inhibiting the Akt/CREB pathway, thus reducing cell apoptosis and restoring cell viability and neurite outgrowth. Clearance of ROS by vitamin E (Vit E) repressed the FA-mediated upregulation of TNFAIP1 expression. These results suggest that FA increases the expression of TNFAIP1 by inducing oxidative stress and that upregulated TNFAIP1 then inhibits the Akt/CREB pathway, consequently leading to cell apoptosis and neurite retraction. Therefore, TNFAIP1 is a potential target for alleviating FA-induced neurotoxicity and related neurological disorders.
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Affiliation(s)
- Junzhi Yi
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University, Hangzhou, China
| | - Min Zhu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.,The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Feng Qiu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.,The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Yubo Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.,The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Pan Shu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Ning Liu
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China. .,The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China. .,The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
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23
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Qiu F, Zhou Y, Deng Y, Yi J, Gong M, Liu N, Wei C, Xiang S. Knockdown of TNFAIP1 prevents di-(2-ethylhexyl) phthalate-induced neurotoxicity by activating CREB pathway. Chemosphere 2020; 241:125114. [PMID: 31683445 DOI: 10.1016/j.chemosphere.2019.125114] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is a widely used plasticizer. It has neurotoxicity and exposure to it causes impairment of neurodevelopment, behavior and cognition. However, the molecular mechanisms responsible for the DEHP-induced neurotoxicity are not yet clearly defined. Tumor necrosis factor-induced protein 1 (TNFAIP1) was first discovered in umbilical vein endothelial cells and was further found to be important in the progress of Alzheimer's disease. Herein we explore the mechanism of TNFAIP1 in DEHP-induced neurotoxicity with the involvement of cyclic AMP response elements binding protein (CREB) signaling pathway in a mouse neuroblastoma cell line (N2a cells). We found that exposure to DEHP induced apoptosis and downregulated the expression of brain-derived neurotrophic factor (BDNF), synaptic proteins PSD 95 and synapsin-1 while upregulated the expression of TNFAIP1 and decreased the levels of phosphorylated Akt, CaMK Ⅳ, catalytic subunits of PKA and CREB in CREB signaling pathway. Knockdown of TNFAIP1 using TNFAIP1 small interfering RNA (siRNA) expression vector prevented DEHP from inhibiting CREB pathway, thus reduced apoptosis and restored expression of BDNF, PSD 95 and synapsin-1. Our data indicate that downregulation of TNFAIP1 prevents DEHP-induced neurotoxicity via activating CREB pathway. Therefore, TNFAIP1 is a potential target for relieving the DEHP-induced neurotoxicity and related neurological disorders.
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Affiliation(s)
- Feng Qiu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Yubo Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Yeke Deng
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Junzhi Yi
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Mengting Gong
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Ning Liu
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China; The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
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Xiao Y, Huang S, Qiu F, Ding X, Sun Y, Wei C, Hu X, Wei K, Long S, Xie L, Xun Y, Chen W, Zhang Z, Liu N, Xiang S. Tumor necrosis factor α-induced protein 1 as a novel tumor suppressor through selective downregulation of CSNK2B blocks nuclear factor-κB activation in hepatocellular carcinoma. EBioMedicine 2020; 51:102603. [PMID: 31901862 PMCID: PMC6950786 DOI: 10.1016/j.ebiom.2019.102603] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 08/27/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022] Open
Abstract
Background Tumor necrosis factor α-induced protein 1 (TNFAIP1) is frequently downregulated in cancer cell lines and promotes cancer cell apoptosis. However, its role, clinical significance and molecular mechanisms in hepatocellular carcinoma (HCC) are unknown. Methods The expression of TNFAIP1 in HCC tumor tissues and cell lines was measured by Western blot and immunohistochemistry. The effects of TNFAIP1 on HCC proliferation, apoptosis, metastasis, angiogenesis and tumor formation were evaluated by Cell Counting Kit-8 (CCK8), Terminal deoxynucleotidyl transferase dUTP Nick-End Labeling (TUNEL), transwell, tube formation assay in vitro and nude mice experiments in vivo. The interaction between TNFAIP1 and CSNK2B was validated by liquid chromatography-tandem mass spectrometry (LC-MS/MS), Co-immunoprecipitation and Western blot. The mechanism of how TNFAIP1 regulated nuclear factor-kappaB (NF-κB) pathway was analyzed by dual-luciferase reporter, immunofluorescence, quantitative Real-time polymerase chain reaction (RT-qPCR) and Western blot. Findings The TNFAIP1 expression is significantly decreased in HCC tissues and cell lines, and negatively correlated with the increased HCC histological grade. Overexpression of TNFAIP1 inhibits HCC cell proliferation, metastasis, angiogenesis and promotes cancer cell apoptosis both in vitro and in vivo, whereas the knockdown of TNFAIP1 in HCC cell displays opposite effects. Mechanistically, TNFAIP1 interacts with CSNK2B and promotes its ubiquitin-mediated degradation with Cul3, causing attenuation of CSNK2B-dependent NF-κB trans-activation in HCC cell. Moreover, the enforced expression of CSNK2B counteracts the inhibitory effects of TNFAIP1 on HCC cell proliferation, migration, and angiogenesis in vitro and in vivo. Interpretation Our results support that TNFAIP1 can act as a tumor suppressor of HCC by modulating TNFAIP1/CSNK2B/NF-κB pathway, implying that TNFAIP1 may represent a potential marker and a promising therapeutic target for HCC.
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Affiliation(s)
- Ye Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China; Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, 410008, China
| | - Shulan Huang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Feng Qiu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Xiaofeng Ding
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Yi Sun
- Department of Pathology, Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Chenxi Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Ke Wei
- Medical school, Hunan University of Traditional Chinese Medicine, Changsha, 410208, China
| | - Shengwen Long
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Lina Xie
- Department of Stomatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Wen Chen
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Zhijian Zhang
- Department of Pathology, Xiangya Hospital of Central South University, Changsha, 410008, China
| | - Ning Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, 410013, China.
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, 410081, China.
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Xiang S, Gao W, Peng H, Liu A, Ao Q, Yang M, Yu Y, Liu Y, Rong R, Rong R. Standards of clinical-grade mesenchymal stromal cell preparation and quality control (2020 China Version). Journal of Neurorestoratology 2020. [DOI: 10.26599/jnr.2020.9040021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) including mesenchymal stem cells to potentially differentiate into different tissue lineages widely exist in various tissues. In recent years, the clinical research and application of MSCs have become more extensive, but no standardized guidelines for the preparation and quality control of clinical-grade MSCs currently exist. To standardize the preparation and quality control of MSCs using the human umbilical cord, placenta, bone marrow, and adipose tissue as sample sources for the Chinese Association of Neurorestoratology (CANR; Preparatory) and the China Committee of International Association of Neurorestoratology (IANR-China Committee) member units, this standard is formulated following the T11/CSSCR 001-2017 General Requirements for Stem Cells, Good Manufacturing Practice Pharmaceutical Products (2010 Edition), Pharmacopoeia of the People's Republic of China (2015 Edition), Guiding Principles for Quality Control of Stem Cell Preparations and Preclinical Research (Trial), Code for Cell Banking Facility Quality Management, Sterile Drug Appendix to Pharmaceutical Production Quality Management Regulations, GMP Appendix — Cell Therapy Products (Draft for Comment), The International Society for Cellular Therapy position statement (2006), and Clinical Cell Therapy Guidelines for Neurorestoration (IANR/CANR 2017). Moreover, this standard includes donor evaluation, sample collection, cell preparation, cell inspection, packaging, labeling, transportation and storage, and quality control. It represents the minimum requirements for clinical-grade mesenchymal stromal cell culture and quality control. Moreover, it will be further optimized following the progress of preclinical and clinical research.
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Li S, Peng F, Ning Y, Jiang P, Peng J, Ding X, Zhang J, Jiang T, Xiang S. SNHG16 as the miRNA let-7b-5p sponge facilitates the G2/M and epithelial-mesenchymal transition by regulating CDC25B and HMGA2 expression in hepatocellular carcinoma. J Cell Biochem 2019; 121:2543-2558. [PMID: 31696971 DOI: 10.1002/jcb.29477] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/10/2019] [Indexed: 12/15/2022]
Abstract
Long noncoding RNAs (lncRNAs) play crucial roles in hepatocellular carcinoma (HCC). However, the underlying molecular mechanisms of small nucleolar RNA host gene 16 (SNHG16) for regulating the cell cycle and epithelial to mesenchymal transition (EMT) remain elusive. In this study, SNHG16 expression profiles of HCC tissues or cell lines were compared with those of normal tissues or hepatocyte cell line. The effect of SNHG16 knockdown in HCC cell lines was investigated by using in vitro loss-of-function experiments and in vivo nude mouse experiments. The potential molecular regulatory mechanism of SNHG16 in HCC progression was investigated by using mechanistic experiments and rescue assays. The results revealed that SNHG16 was highly expressed in HCC tissues and cell lines, which predicted poor prognosis of HCC patients. On one hand, the downregulation of SNHG16 induced G2/M cell cycle arrest, inducing cell apoptosis and suppression of cell proliferation. On the other hand, it inhibited cell metastasis and EMT progression demonstrated by in vitro loss-of-function cell experiments. Besides, knockdown of SNHG16 increased the sensitivity of HCC cells to cisplatin. For the detailed mechanism, SNHG16 was demonstrated to act as a let-7b-5p sponge in HCC. SNHG16 facilitated the G2/M cell cycle transition by directly acting on the let-7b-5p/CDC25B/CDK1 axis, and promoted cell metastasis and EMT progression by regulating the let-7b-5p/HMGA2 axis in HCC. In addition, the mechanism of SNHG16 for regulating HCC cell proliferation and metastasis was further confirmed in vivo by mouse experiments. Furthermore, these results can provide new insights into HCC treatment and its molecular pathogenesis, which may enlighten the further research of the molecular pathogenesis of HCC.
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Affiliation(s)
- Shengguang Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China.,Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,Center of Systems Medicine, Chinese Academy of Medical Sciences, Suzhou Institute of Systems Medicine, Suzhou, China
| | - Fujun Peng
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yichong Ning
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Peng Jiang
- Suzhou Geneworks Technology Co, Ltd, Suzhou, China
| | - Jian Peng
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaofeng Ding
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Jian Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Taijiao Jiang
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,Center of Systems Medicine, Chinese Academy of Medical Sciences, Suzhou Institute of Systems Medicine, Suzhou, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
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Xun Y, Tang Y, Hu L, Xiao H, Long S, Gong M, Wei C, Wei K, Xiang S. Purification and Identification of miRNA Target Sites in Genome Using DNA Affinity Precipitation. Front Genet 2019; 10:778. [PMID: 31572429 PMCID: PMC6751328 DOI: 10.3389/fgene.2019.00778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 07/23/2019] [Indexed: 12/17/2022] Open
Abstract
Combination with genomic DNA is one of the important ways for microRNAs (miRNAs) to perform biological processes. However, because of lack of an experimental method, the identified genomic sites targeted by microRNA were only located in the promoter and enhancer regions. In this study, based on affinity purification of labeled biotin at the 3'-end of miRNAs, we established an efficiently experimental method to screen miRNA binding sequences in the whole genomic regions in vivo. Biotinylated miR-373 was used to test our approach in MCF-7 cells, and then Sanger and next-generation sequencing were used to screen miR-373 binding sequences. Our results demonstrated that the genomic fragments precipitated by miR-373 were located not only in promoter but also in intron, exon, and intergenic. Eleven potentially miR-373 targeting genes were selected for further study, and all of these genes were significantly regulated by miR-373. Furthermore, the targeting sequences located in E-cadherin, cold-shock domain-containing protein C2 (CSDC2), and PDE4D genes could interact with miR-373 in MCF-7 cells rather than HeLa cells, which is consistent with our data that these three genes can be regulated by miR-373 in MCF-7 cells while not in HeLa cells. On the whole, this is an efficient method to identify miRNA targeting sequences in the whole genome.
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Affiliation(s)
- Yu Xun
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Yinxin Tang
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Linmin Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Hui Xiao
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Shengwen Long
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Mengting Gong
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Chenxi Wei
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
| | - Ke Wei
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China.,Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, China
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Huang W, Zhong Z, Luo C, Xiao Y, Li L, Zhang X, Yang L, Xiao K, Ning Y, Chen L, Liu Q, Hu X, Zhang J, Ding X, Xiang S. The miR-26a/AP-2α/Nanog signaling axis mediates stem cell self-renewal and temozolomide resistance in glioma. Am J Cancer Res 2019; 9:5497-5516. [PMID: 31534499 PMCID: PMC6735392 DOI: 10.7150/thno.33800] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 07/17/2019] [Indexed: 12/24/2022] Open
Abstract
Aberrant expression of transcription factor AP-2α has been functionally associated with various cancers, but its clinical significance and molecular mechanisms in human glioma are largely elusive. Methods: AP-2α expression was analyzed in human glioma tissues by immunohistochemistry (IHC) and in glioma cell lines by Western blot. The effects of AP-2α on glioma cell proliferation, migration, invasion and tumor formation were evaluated by the 3-(4,5-dimethyNCthiazol-2-yl)-25-diphenyltetrazolium bromide (MTT) and transwell assays in vitro and in nude mouse models in vivo. The influence of AP-2α on glioma cell stemness was analyzed by sphere-formation, self-renewal and limiting dilution assays in vitro and in intracranial mouse models in vivo. The effects of AP-2α on temozolomide (TMZ) resistance were detected by the MTT assay, cell apoptosis, real-time PCR analysis, western blotting and mouse experiments. The correlation between AP-2α expression and the expression of miR-26a, Nanog was determined by luciferase reporter assays, electrophoretic mobility shift assay (EMSA) and expression analysis. Results: AP-2α expression was downregulated in 58.5% of glioma tissues and in 4 glioma cell lines. AP-2α overexpression not only reduced the proliferation, migration and invasion of glioma cell lines but also suppressed the sphere-formation and self-renewal abilities of glioma stem cells in vitro. Moreover, AP-2α overexpression inhibited subcutaneous and intracranial xenograft tumor growth in vivo. Furthermore, AP-2α enhanced the sensitivity of glioma cells to TMZ. Finally, AP-2α directly bound to the regulatory region of the Nanog gene, reduced Nanog, Sox2 and CD133 expression. Meanwhile, AP-2α indirectly downregulated Nanog expression by inhibiting the interleukin 6/janus kinase 2/signal transducer and activator of transcription 3 (IL6/JAK2/STAT3) signaling pathway, consequently decreasing O6-methylguanine methyltransferase (MGMT) and programmed death-ligand 1 (PD-L1) expression. In addition, miR-26a decreased AP-2α expression by binding to the 3' untranslated region (UTR) of AP-2α and reversed the tumor suppressive role of AP-2α in glioma, which was rescued by a miR-26a inhibitor. TMZ and the miR-26a inhibitor synergistically suppressed intracranial GSC growth. Conclusion: These results suggest that AP-2α reduces the stemness and TMZ resistance of glioma by inhibiting the Nanog/Sox2/CD133 axis and IL6/STAT3 signaling pathways. Therefore, AP-2α and miR-26a inhibition might represent a new target for developing new therapeutic strategies in TMZ resistance and recurrent glioma patients.
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Liu N, Yu Z, Xun Y, Shu P, Yue Y, Yuan S, Jiang Y, Huang Z, Yang X, Feng X, Xiang S, Wang X. Amyloid-β25-35 Upregulates Endogenous Neuroprotectant Neuroglobin via NFκB Activation in vitro. J Alzheimers Dis 2019; 64:1163-1174. [PMID: 30010125 DOI: 10.3233/jad-180163] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Neuroglobin (Ngb) has been reported to be increased in early and moderately advanced Alzheimer's disease (AD) stages but declined in the severe stage. However, its regulatory mechanisms and pathophysiological roles in the disease remain to be defined. In this study, we found that Ngb expression was significantly upregulated by low dose Aβ25-35, the neurotoxic fragment of Aβ1 - 40 and Aβ1 - 42, but was not further increased by a higher dose of Aβ25-35. Mutation analysis and supershift assay demonstrated that transcription factor Nuclear Factor κB (NFκB), κB2 and κB3 sites located in mouse Ngb promoter region were involved in dynamic regulation of Ngb expression in response to different doses of Aβ25-35 stimulation. In addition, we found that suppression of endogenous Ngb expression exacerbated Aβ25-35-induced neuronal cell death and mitochondrial dysfunction. Our results indicate that endogenous Ngb expression may be upregulated by low dose Aβ25-35, which is responsible for protecting against Aβ25-35-mediated neurotoxicity. These experimental findings suggest that upregulation of endogenous Ngb expression might be an effective intervention approach for AD.
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Affiliation(s)
- Ning Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China.,Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zhanyang Yu
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Pan Shu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yiwei Yue
- School of Clinical Medicine, Zhengzhou University, Zhengzhou, China.,Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shishan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Yinghua Jiang
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zixuan Huang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Xing Feng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiaoying Wang
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Li Z, Du Y, Xiang S, Feng B, Bian Y, Qian W, Jin J, Lin J, Weng X. Risk factors of perioperative complications and transfusion following total hip arthroplasty in systemic lupus erythematosus patients. Lupus 2019; 28:1134-1140. [PMID: 31296142 DOI: 10.1177/0961203319862609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND In recent years, hip arthroplasty rates in systemic lupus erythematosus (SLE) patients have been increasing rapidly. Although patients with SLE generally show beneficial or desirable functional outcomes following total hip arthroplasty (THA), it has been reported that SLE patients after THA have increased risk of postoperative complications, especially during the period of hospitalization. OBJECTIVES In the present study, we aimed to identify possible factors associated with complications or transfusion of THA in SLE patients during hospitalization. METHODS The present study was a retrospective study conducted in Peking Union Medical College Hospital. Data were collected from medical records of patients who underwent THA from January 2012 to June 2018. The primary outcome variable was perioperative complications, which was defined as having one or more of the following conditions: high fever, infection, impaired wound healing, venous thrombosis of the lower extremities, hematoma, arrhythmia, implant complications. The secondary outcome was perioperative transfusion. RESULTS During January 2012 to June 2018, 100 patients had taken the surgery of THA. After multivariate analysis, independent risk factors for perioperative complications were: age ≥ 45 years (p = 0.001), SLE with other connective tissue diseases (p = 0.029), high temperature (p = 0.030), positive anti-dsDNA antibody (p = 0.043), and Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage Index ≥ 3 (p = 0.008). Independent risk factors for perioperative transfusion were bilateral THA (p = 0.029), low hemoglobin (p = 0.021) and abnormal renal function (p = 0.021). CONCLUSION For SLE patients following THA, age > 45 years, SLE with other connective tissue disease, high temperature, positive anti-dsDNA antibody and SLICC/ACR Damage Index ≥ 3 were the risk factors of complications during hospitalization and bilateral THA, low hemoglobin and abnormal renal function were the risk factors of transfusion.
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Affiliation(s)
- Z Li
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Y Du
- 2 Office of Clinical Epidemiology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - S Xiang
- 3 Department of Joint Surgery, The Affiliated Hospital of Qingdao University, China
| | - B Feng
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Y Bian
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - W Qian
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - J Jin
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - J Lin
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - X Weng
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
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Zhang Y, Xiang S, Guo X, Wen A, Hao Y. All-optical inhibitory dynamics in photonic neuron based on polarization mode competition in a VCSEL with an embedded saturable absorber. Opt Lett 2019; 44:1548-1551. [PMID: 30933087 DOI: 10.1364/ol.44.001548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
An all-optical spike inhibition scheme based on polarization-mode competition (PMC) in a vertical-cavity surface-emitting laser (VCSEL) with an embedded saturable absorber is proposed and investigated numerically. The inhibitory dynamics is characterized by spike amplitude and first-spike latency (FSL) for the first time, to the best of our knowledge. The effects of time differences between inhibitory and excitatory inputs, inputs strengths, bias current, as well as noise on the spike amplitude and FSL are examined. The results show that a spike can be triggered in the y-polarization mode by excitatory input and can be inhibited in the presence of inhibitory input due to PMC.
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Chen W, Zhang G, Li J, Zhang X, Huang S, Xiang S, Hu X, Liu C. CRISPRlnc: a manually curated database of validated sgRNAs for lncRNAs. Nucleic Acids Res 2019; 47:D63-D68. [PMID: 30285246 PMCID: PMC6324000 DOI: 10.1093/nar/gky904] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/18/2018] [Accepted: 09/26/2018] [Indexed: 12/21/2022] Open
Abstract
The CRISPR/Cas9 system, as a revolutionary genome editing tool for all areas of molecular biology, provides new opportunities for research on lncRNA's function. However, designing a CRISPR/Cas9 single guide RNA (sgRNA) for lncRNA is not easy with an unwarrantable effectiveness. Thus, it is worthy of collecting validated sgRNAs, to assist in efficiently choosing sgRNA with an expected activity. CRISPRlnc (http://www.crisprlnc.org or http://crisprlnc.xtbg.ac.cn) is a manually curated database of validated CRISPR/Cas9 sgRNAs for lncRNAs from all species. After manually reviewing more than 200 published literature, the current version of CRISPRlnc contains 305 lncRNAs and 2102 validated sgRNAs across eight species, including mammalian, insect and plant. We handled the ID, position in the genome, sequence and functional description of these lncRNAs, as well as the sequence, protoacceptor-motif (PAM), CRISPR type and validity of their paired sgRNAs. In CRISPRlnc, we provided the tools for browsing, searching and downloading data, as well as online BLAST service and genome browse server. As the first database against the validated sgRNAs of lncRNAs, CRISPRlnc will provide a new and powerful platform to promote CRISPR/Cas9 applications for future functional studies of lncRNAs.
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Affiliation(s)
- Wen Chen
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Guoqiang Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Jing Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Xuan Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Shulan Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Changning Liu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
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Xiang S, Tang HW, Zhou J, Li XZ. Electrospinning of Hydroxypropyl-beta-cyclodextrin/Polyvinylpyrrolidone Resveratrol-loaded Nanofibers: Preparation and Characterization. Indian J Pharm Sci 2019. [DOI: 10.36468/pharmaceutical-sciences.552] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Xiang S, Lian F. Effects of bushen huatan recipe on the AKT-GLUT4 insulin signal pathway of ovarian granular cells in polycystic ovarian syndrome and IVF outcomes in these infertile patients. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.558] [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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35
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Yang L, Qiu J, Xiao Y, Hu X, Liu Q, Chen L, Huang W, Li X, Li L, Zhang J, Ding X, Xiang S. AP-2β inhibits hepatocellular carcinoma invasion and metastasis through Slug and Snail to suppress epithelial-mesenchymal transition. Theranostics 2018; 8:3707-3721. [PMID: 30026878 PMCID: PMC6037033 DOI: 10.7150/thno.25166] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 05/18/2018] [Indexed: 12/14/2022] Open
Abstract
Transcription factor AP-2β plays an important role in human cancer, but its clinical significance in hepatocellular carcinogenesis is largely unknown. Methods: AP-2β expression was detected in human hepatocellular cancer (HCC) tissues and cell lines. The effects of AP-2β on HCC proliferation, migration, invasion, tumor formation and metastasis were evaluated by MTT, colony formation and transwell assays in vitro and mouse experiments in vivo. The association between AP-2β and miR-27a/EMT markers in HCC cell lines and tissues was analyzed. Results: AP-2β expression was decreased in HCC tissues and cell lines. Reduced expression of AP-2β was significantly associated with more advanced tumor stages and larger tumor sizes. The overexpression of AP-2β reduced HCC proliferation, migration, invasion, tumor formation and metastasis in vitro and in vivo. Additionally, AP-2β overexpression increased the sensitivity of HCC cells to cisplatin. Moreover, AP-2β modulates the levels of EMT markers through Slug and Snail in HCC cell lines and tissues. Furthermore, oncogenic miR-27a inhibits AP-2β expression by binding to the AP-2β 3′ untranslated region (UTR) and reverses the tumor suppressive role of AP-2β. Conclusion: These results suggested that AP-2β is lowly expressed in HCC by inhibiting EMT signaling to regulate HCC cell growth and migration. Therefore, AP-2β in the novel miR-27a/AP-2β/Slug/EMT regulatory axis enhances the chemotherapeutic drug sensitivity of HCC and might represent a potential target for evaluating the treatment and prognosis of human HCC.
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Chen W, Zhang X, Li J, Huang S, Xiang S, Hu X, Liu C. Comprehensive analysis of coding-lncRNA gene co-expression network uncovers conserved functional lncRNAs in zebrafish. BMC Genomics 2018; 19:112. [PMID: 29764394 PMCID: PMC5954278 DOI: 10.1186/s12864-018-4458-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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] [Indexed: 12/14/2022] Open
Abstract
Background Zebrafish is a full-developed model system for studying development processes and human disease. Recent studies of deep sequencing had discovered a large number of long non-coding RNAs (lncRNAs) in zebrafish. However, only few of them had been functionally characterized. Therefore, how to take advantage of the mature zebrafish system to deeply investigate the lncRNAs’ function and conservation is really intriguing. Results We systematically collected and analyzed a series of zebrafish RNA-seq data, then combined them with resources from known database and literatures. As a result, we obtained by far the most complete dataset of zebrafish lncRNAs, containing 13,604 lncRNA genes (21,128 transcripts) in total. Based on that, a co-expression network upon zebrafish coding and lncRNA genes was constructed and analyzed, and used to predict the Gene Ontology (GO) and the KEGG annotation of lncRNA. Meanwhile, we made a conservation analysis on zebrafish lncRNA, identifying 1828 conserved zebrafish lncRNA genes (1890 transcripts) that have their putative mammalian orthologs. We also found that zebrafish lncRNAs play important roles in regulation of the development and function of nervous system; these conserved lncRNAs present a significant sequential and functional conservation, with their mammalian counterparts. Conclusions By integrative data analysis and construction of coding-lncRNA gene co-expression network, we gained the most comprehensive dataset of zebrafish lncRNAs up to present, as well as their systematic annotations and comprehensive analyses on function and conservation. Our study provides a reliable zebrafish-based platform to deeply explore lncRNA function and mechanism, as well as the lncRNA commonality between zebrafish and human. Electronic supplementary material The online version of this article (10.1186/s12864-018-4458-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wen Chen
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China.,State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Xuan Zhang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Jing Li
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Shulan Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiang Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China.
| | - Changning Liu
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China.
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Hu X, Chen W, Li J, Huang S, Xu X, Zhang X, Xiang S, Liu C. ZFLNC: a comprehensive and well-annotated database for zebrafish lncRNA. Database (Oxford) 2018; 2018:5134219. [PMID: 30335154 PMCID: PMC6193196 DOI: 10.1093/database/bay114] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/26/2018] [Indexed: 02/04/2023]
Abstract
There is emerging evidence showing that lncRNAs can be involved in various critical biological processes. Zebrafish is a fully developed model system being used in a variety of basic research and biomedical studies. Hence, it is an ideal model organism to study the functions and mechanisms of lncRNAs. Here, we constructed ZFLNC—a comprehensive database of zebrafish lncRNA that is dedicated to providing a zebrafish-based platform for deep exploration of zebrafish lncRNAs and their mammalian counterparts to the relevant academic communities. The main data resources of lncRNAs in this database come from the NCBI, Ensembl, NONCODE, zflncRNApedia and literature. We also obtained lncRNAs as a supplement by analysing RNA-Seq datasets from SRA database. With these IncRNAs, we further carried out expression profiling, co-expression network prediction, Gene Ontology (GO)/Kyoto Encyclopedia
of Genes and Genomes (KEGG)/Online Mendelian Inheritance in Man (OMIM) annotation and conservation analysis. As far as we know, ZFLNC is the most comprehensive and well-annotated database for zebrafish lncRNA.
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Affiliation(s)
- Xiang Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China.,State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Wen Chen
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China.,State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Jing Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Shulan Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Xuling Xu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Xuan Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Shuanglin Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Changning Liu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
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Li B, Guo W, Zhang F, Liu M, Wang S, Liu Z, Xiang S, Zeng Y. Synthesis and evaluation of L-arabinose-based cationic glycolipids as effective vectors for pDNA and siRNA in vitro. PLoS One 2017; 12:e0180276. [PMID: 28672000 PMCID: PMC5495346 DOI: 10.1371/journal.pone.0180276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/13/2017] [Indexed: 01/14/2023] Open
Abstract
Glycolipids might become a new type of promising non-viral gene delivery systems because of their low cytotoxicity, structural diversity, controllable aqua- and lipo-solubility, appropriate density and distribution of positive charges, high transfer efficiency and potential targeting function. In this study, four kinds of L-arabinose-based cationic glycolipids (Ara-DiC12MA, Ara-DiC14MA, Ara-DiC16MA and Ara-DiC18MA) containing quaternary ammonium as hydrophilic headgroup and two alkane chains as hydrophobic domain were synthesized and characterized. They were observed to have strong affinities for plasmid DNA (pDNA) and siRNA, the pDNA can be completely condensed at N/P ratio less than 2, and the siRNA can be completely retarded at N/P ratio less than 3. The dynamic light scattering (DLS) experiment and atomic force microscopy (AFM) experiment demonstrated that cationic lipids and their lipoplexes possessed suitable particle sizes with near-spherical shape and proper ζ-potentials for cell transfection. The Ara-DiC16MA liposome was found to have good transfection efficacy in HEK293, PC-3 and Mat cells compared with other three kinds of liposomes, and also maintain low cytotoxicity and better uptake capability in vitro. Furthermore, the gene silencing assay showed that Ara-DiC14MA and Ara-DiC16MA liposomes have demonstrated effective delivery and higher gene knockdown activity (>80%) in the above mentioned cells than Lipofectamine 2000. These results indicated Ara-DiC16MA can be developed for efficient and low toxic gene delivery.
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Affiliation(s)
- Bo Li
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Wanrong Guo
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Fan Zhang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Meiyan Liu
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Shang Wang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Zhonghua Liu
- The National &Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan, P.R. China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. China
| | - Youlin Zeng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, P. R. China
- * E-mail:
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Wei C, Chen M, You H, Qiu F, Wen H, Yuan J, Xiang S, Yang X. Formaldehyde and co-exposure with benzene induce compensation of bone marrow and hematopoietic stem/progenitor cells in BALB/c mice during post-exposure period. Toxicol Appl Pharmacol 2017; 324:36-44. [DOI: 10.1016/j.taap.2017.03.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/22/2017] [Accepted: 03/29/2017] [Indexed: 12/27/2022]
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Liu S, Jiang B, Li H, He Z, Lv P, Peng C, Wang Y, Cheng W, Xu Z, Chen W, Liu Z, Zhang B, Shen S, Xiang S. Wip1 is associated with tumorigenity and metastasis through MMP-2 in human intrahepatic cholangiocarcinoma. Oncotarget 2017; 8:56672-56683. [PMID: 28915621 PMCID: PMC5593592 DOI: 10.18632/oncotarget.18074] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 04/26/2017] [Indexed: 12/21/2022] Open
Abstract
Wip1 has been shown to correlate with the metastasis/invasion of several tumors. This study was designed to investigate the clinical significance and biological function of Wip1 in intrahepatic cholangiocarcinoma (ICC). The expression of Wip1 was investigated in sixty human ICC biopsy samples by immunohistochemistry. Transient and stable knockdown of Wip1 in two human ICC cells (ICC-9810 and SSP25) were established using short hairpin RNA expression vector. Immunohistochemistry revealed that Wip1 was up-regulated in human ICC tissues (47/60, 78.3%). High levels of Wip1 in human ICC correlated with metastasis to the lymph metastasis (P=0.022). Genetic depletion of Wip1 in ICC cells resulted in significantly inhibited proliferation and invasion compared with controls. Most importantly, Wip1 down-regulation impaired tumor migration capacity of ICC cells in vivo. Subsequent investigations revealed that matrix metalloproteinase-2 (MMP-2) is an important target of Wip1. Consistently, in human ICC tissues, Wip1 level was positively correlated with MMP-2 expression. Taken together, our founding indicates that Wip1 may be a crucial regulator in the tumorigenicity and invasion of human ICC, Wip1 exerts its pro-invasion function at least in part through the MMP-2 signaling pathway, suggesting Wip1 as a potential therapeutic target for ICC.
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Affiliation(s)
- Sulai Liu
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Bo Jiang
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Hao Li
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Zili He
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Pin Lv
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Chuang Peng
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Yonggang Wang
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Wei Cheng
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Zhengquan Xu
- Department of Orthopaedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
| | - Wei Chen
- Department of Thoracic, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People's Republic of China
| | - Zhengkai Liu
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Bao Zhang
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Shengqian Shen
- Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan Province, People's Republic of China
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Gan S, Huang Z, Liu N, Su R, Xie G, Zhong B, Zhang K, Wang S, Hu X, Zhang J, Xiang S. MicroRNA-140-5p impairs zebrafish embryonic bone development via targeting BMP-2. FEBS Lett 2017; 590:1438-46. [PMID: 27130837 DOI: 10.1002/1873-3468.12190] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/14/2016] [Accepted: 04/18/2016] [Indexed: 12/21/2022]
Abstract
MicroRNA-140-5p (miRNA-140-5p) is important for embryonic bone development. In this study, we found that miRNA-140-5p and its binding site in the 3'UTR of bone morphogenetic protein 2 (BMP-2) are highly conserved among vertebrates, and miRNA-140-5p negatively regulates both zebrafish and human BMP-2 genes. Microinjection of miRNA-140-5p or BMP-2b morpholino into zebrafish embryos led to a similar phenotype, including shortened tails, curved trunks, and defects in cranial cartilage. Moreover, miRNA-140-5p injection induced zebrafish embryo malformation that could be significantly rescued by microinjection of BMP-2 mRNA. In conclusion, our results indicated that miRNA-140-5p regulates zebrafish embryonic bone development via targeting BMP-2.
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Affiliation(s)
- Shiquan Gan
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Zhaoqin Huang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Ning Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,College of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Renxiang Su
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Guie Xie
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Beibei Zhong
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Kai Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Shang Wang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, Department of Biochemistry and Molecular Biology, College of Life Science, Hunan Normal University, Changsha, Hunan, China.,The Cooperative Innovation Center of Engineering and New Products for Developmental Biology of Hunan Province (20134486), Changsha, Hunan, China
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Wang F, Huang W, Hu X, Chen C, Li X, Qiu J, Liang Z, Zhang J, Li L, Wang X, Ding X, Xiang S, Zhang J. Transcription factor AP-2β suppresses cervical cancer cell proliferation by promoting the degradation of its interaction partner β-catenin. Mol Carcinog 2017; 56:1909-1923. [PMID: 28277615 DOI: 10.1002/mc.22646] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 02/28/2017] [Accepted: 03/03/2017] [Indexed: 12/21/2022]
Abstract
Transcription factor AP-2β mediates the transcription of a number of genes implicated in mammalian development, cell proliferation, and carcinogenesis. Although the expression pattern of AP-2β has been analyzed in cervical cancer cell lines, the functions and molecular mechanism of AP-2β are unknown. Here, we found that AP-2β significantly inhibits TCF/LEF reporter activity. Moreover, AP-2β and β-catenin interact both in vitro through GST pull-down assays and in vivo by co-immunoprecipitation. We further identified the interaction regions to the DNA-binding domain of AP-2β and the 1-9 Armadillo repeats of β-catenin. Moreover, AP-2β binds with β-TrCP and promotes the degradation of endogenous β-catenin via the proteasomal degradation pathway. Immunohistochemistry analysis revealed a negative correlation between the two proteins in cervical cancer tissues and cell lines. Finally, functional analysis showed that AP-2β suppresses cervical cancer cell growth in vitro and in vivo by inhibiting the expression of Wnt downstream genes. Taken together, these findings demonstrated that AP-2β functions as a novel inhibitor of the Wnt/β-catenin signaling pathway in cervical cancer.
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Affiliation(s)
- Fangmei Wang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Wenhuan Huang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Cheng Chen
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Xinxin Li
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Junlu Qiu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Zhongheng Liang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Jianmei Zhang
- Reproductive Medicine Center, Changsha Hospital for Maternal & Child Health Care, Changsha, Hunan, China
| | - Limin Li
- College of Engineering and Design, Hunan Normal University, Changsha, Hunan, China
| | - Xiaoqing Wang
- Xiangya Second Hospital, Central South University, Changsha, Hunan, China
| | - Xiaofeng Ding
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Science, Changsha, Hunan, China
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Kern B, Budihardjo JD, Mermulla S, Quan A, Cadmi C, Lopez J, Khusheim M, Xiang S, Park J, Furtmüller GJ, Sarhane KA, Schneeberger S, Lee WPA, Hoke A, Tuffaha SH, Brandacher G. A Novel Rodent Orthotopic Forelimb Transplantation Model That Allows for Reliable Assessment of Functional Recovery Resulting From Nerve Regeneration. Am J Transplant 2017; 17:622-634. [PMID: 27500557 DOI: 10.1111/ajt.14007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/28/2016] [Accepted: 08/04/2016] [Indexed: 01/25/2023]
Abstract
Improved nerve regeneration and functional outcomes would greatly enhance the utility of vascularized composite allotransplantation (VCA) such as hand and upper extremity transplantation. However, research aimed at achieving this goal has been limited by the lack of a functional VCA animal model. We have developed a novel rat midhumeral forelimb transplant model that allows for the characterization of upper extremity functional recovery following transplantation. At the final end point of 12 weeks, we found that animals with forelimb transplantation including median, ulnar and radial nerve coaptation demonstrated significantly improved grip strength and forelimb function as compared to forelimb transplantation without nerve approximation (grip strength: 1.71N ± 0.57 vs. no appreciable recovery; IBB scale: 2.6 ± 0.7? vs. 0.8 ± 0.40; p = 0.0005), and similar recovery to nerve transection-and-repair only (grip strength: 1.71N ± 0.57 vs. 2.03 ± 0.42.6; IBB scale: 2.6 ± 0.7 vs. 2.8 ± 0.8; p = ns). Moreover, all forelimb transplant animals with nerve coaptation displayed robust axonal regeneration with myelination and reduced flexor muscle atrophy when compared to forelimb transplant animals without nerve coaptation. In conclusion, this is the first VCA small-animal model that allows for reliable and reproducible measurement of behavioral functional recovery in addition to histologic evaluation of nerve regeneration and graft reinnervation.
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Affiliation(s)
- B Kern
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD.,Department of Visceral, Transplant, and Thoracic Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - J D Budihardjo
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Mermulla
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Quan
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - C Cadmi
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J Lopez
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - M Khusheim
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Xiang
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J Park
- Department of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD
| | - G J Furtmüller
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - K A Sarhane
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Schneeberger
- Department of Visceral, Transplant, and Thoracic Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - W P A Lee
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Hoke
- Department of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S H Tuffaha
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - G Brandacher
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
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Wei L, Ma Y, Shi X, Wang Y, Su X, Yu C, Xiang S, Xiao L, Chen B. Living cell intracellular temperature imaging with biocompatible dye-conjugated carbon dots. J Mater Chem B 2017; 5:3383-3390. [DOI: 10.1039/c7tb00309a] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Within living cells, the biological functions of subcellular organelles are highly dependent on the distribution of local temperature.
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Affiliation(s)
- Lin Wei
- Key Laboratory of Phytochemical R&D of Hunan Province
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha
- China
| | - Yanhong Ma
- Key Laboratory of Phytochemical R&D of Hunan Province
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha
- China
| | - Xiaoya Shi
- Key Laboratory of Phytochemical R&D of Hunan Province
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha
- China
| | - Yaxin Wang
- College of Chemistry
- Nankai University
- Tianjin
- China
| | - Xin Su
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing
- China
| | - Changyuan Yu
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing
- China
| | | | - Lehui Xiao
- Key Laboratory of Phytochemical R&D of Hunan Province
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha
- China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha
- China
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45
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He C, Wang S, Liu M, Zhao C, Xiang S, Zeng Y. Design, synthesis and in vitro evaluation of d-glucose-based cationic glycolipids for gene delivery. Org Biomol Chem 2016; 14:1611-22. [PMID: 26670704 DOI: 10.1039/c5ob02107c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cationic lipid consists of a hydrophilic headgroup, backbone and hydrophobic tails which have an immense influence on the transfection efficiency of the lipid. In this paper, two novel series of cationic cyclic glycolipids with a quaternary ammonium headgroup and different-length hydrophobic tails (dodecyl, tetradecyl, hexadecyl) have been designed and synthesized for gene delivery. One contains lipids 1-3 with two hydrophobic alkyl chains linked to the glucose ring directly via an ether link. The other contains lipids 4-6 with two hydrophobic chains on the positively charged nitrogen atoms. All of the lipids were characterized for their ability to bind to DNA, size, ζ-potential, and toxicity. Atomic force microscopy showed that the lipids and DNA-lipid complexes were sphere-like forms. The lipids were used to transfer enhanced green fluorescent protein (EGFP-C3) to HEK293 cells without a helper lipid, the results indicated that lipids 4-6 have better transfection efficiency, in particular lipids 5-6 have similar or better efficiency, compared with the commercial transfection reagent lipofectamine 2000.
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Affiliation(s)
- Chengxi He
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha, Hunan 410081, P. R. China.
| | - Shang Wang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, P. R. China
| | - Meiyan Liu
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha, Hunan 410081, P. R. China.
| | - Chunyan Zhao
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha, Hunan 410081, P. R. China.
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, P. R. China
| | - Youlin Zeng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha, Hunan 410081, P. R. China.
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Abstract
BACKGROUND It has been increasingly suggested that propofol protects against hypoxic-/ischemic-induced neuronal injury. As evidenced by hemorrhage-induced stroke, hemorrhage into the brain may also cause brain damage. Whether propofol protects against hemorrhage-induced brain damage remains unknown. Therefore, in this study, we investigated the effects of propofol on hemoglobin-induced cytotoxicity in cultured mouse cortical neurons. METHODS Neurons were prepared from the cortex of embryonic 15-day-old mice. Hemoglobin was used to induce cytotoxicity in the neurons. The neurons were then treated with propofol for 4 hours. Cytotoxicity was determined by lactate dehydrogenase release assay. Caspase-3 activation was examined by Western blot analysis. Finally, the free radical scavenger U83836E was used to examine the potential involvement of oxidative stress in propofol's effects on hemoglobin-induced cytotoxicity. RESULTS We found that treatment with hemoglobin induced cytotoxicity in the neurons. Propofol enhanced hemoglobin-induced cytotoxicity. Specifically, there was a significant difference in the amount of lactate dehydrogenase release between hemoglobin plus saline (19.84% ± 5.38%) and hemoglobin plus propofol (35.79% ± 4.41%) in mouse cortical neurons (P = 0.00058, Wilcoxon Mann-Whitney U test, n = 8 in the control group or the treatment group). U83836E did not attenuate the enhancing effects of propofol on hemoglobin-induced cytotoxicity in the neurons, and propofol did not significantly affect caspase-3 activation induced by hemoglobin. These data suggested that caspase-3 activation and oxidative stress might not be the underlying mechanisms by which propofol enhanced hemoglobin-induced cytotoxicity. Moreover, these data suggested that the neuroprotective effects of propofol would be dependent on the condition of the brain injury, which will need to be confirmed in future studies. CONCLUSIONS These results from our current proof-of-concept study should promote more research in vitro and in vivo to develop better anesthesia care for patients with hemorrhagic stroke.
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Affiliation(s)
- Jing Yuan
- From the *Key Laboratory of Protein Biochemistry and Developmental Biology of State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China; †Neuroprotection Research Laboratory, Massachusetts General Hospital, Charlestown, Massachusetts; Departments of ‡Radiology and §Neurology, Massachusetts General Hospital, Charlestown, Massachusetts; ‖Program in Neuroscience, Harvard Medical School, Boston, Massachusetts; ¶Department of Neurology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China; #Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts; and **Massachusetts General Hospital Biostatistics Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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47
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Liu N, Yu Z, Xun Y, Li M, Peng X, Xiao Y, Hu X, Sun Y, Yang M, Gan S, Yuan S, Wang X, Xiang S, Zhang J. TNFAIP1 contributes to the neurotoxicity induced by Aβ25-35 in Neuro2a cells. BMC Neurosci 2016; 17:51. [PMID: 27430312 PMCID: PMC4949755 DOI: 10.1186/s12868-016-0286-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 10/07/2015] [Accepted: 07/08/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Amyloid-beta (Aβ) accumulation is a hallmark of Alzheimer's disease (AD) that can lead to neuronal dysfunction and apoptosis. Tumor necrosis factor, alpha-induced protein 1 (TNFAIP1) is an apoptotic protein that was robustly induced in the transgenic C. elegans AD brains. However, the roles of TNFAIP1 in AD have not been investigated. RESULTS We found TNFAIP1 protein and mRNA levels were dramatically elevated in primary mouse cortical neurons and Neuro2a (N2a) cells exposed to Aβ25-35. Knockdown and overexpression of TNFAIP1 significantly attenuated and exacerbated Aβ25-35-induced neurotoxicity in N2a cells, respectively. Further studies showed that TNFAIP1 knockdown significantly blocked Aβ25-35-induced cleaved caspase 3, whereas TNFAIP1 overexpression enhanced Aβ25-35-induced cleaved caspase 3, suggesting that TNFAIP1 plays an important role in Aβ25-35-induced neuronal apoptosis. Moreover, we observed that TNFAIP1 was capable of inhibiting the levels of phosphorylated Akt and CREB, and also anti-apoptotic protein Bcl-2. TNFAIP1 overexpression enhanced the inhibitory effect of Aβ25-35 on the levels of p-CREB and Bcl-2, while TNFAIP1 knockdown reversed Aβ25-35-induced attenuation in the levels of p-CREB and Bcl-2. CONCLUSION These results suggested that TNFAIP1 contributes to Aβ25-35-induced neurotoxicity by attenuating Akt/CREB signaling pathway, and Bcl-2 expression.
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Affiliation(s)
- Ning Liu
- College of Medicine, Hunan Normal University, Changsha, China.,Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.,Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Zhanyang Yu
- Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Miaomiao Li
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xiaoning Peng
- College of Medicine, Hunan Normal University, Changsha, China
| | - Ye Xiao
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Yi Sun
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Manjun Yang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Shiquan Gan
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Shishan Yuan
- College of Medicine, Hunan Normal University, Changsha, China
| | - Xiaoying Wang
- Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.
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48
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Li N, Liu B, Xiang S, Shi L. Similar enhancement of BK(Ca) channel function despite different aerobic exercise frequency in aging cerebrovascular myocytes. Physiol Res 2016; 65:447-59. [PMID: 27070745 DOI: 10.33549/physiolres.933111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aerobic exercise showed beneficial influence on cardiovascular systems in aging, and mechanisms underlying vascular adaption remain unclear. Large-conductance Ca(2+)-activated K(+) (BK(Ca)) channels play critical roles in regulating cellular excitability and vascular tone. This study determined the effects of aerobic exercise on aging-associated functional changes in BK(Ca) channels in cerebrovascular myocytes, Male Wistar rats aged 20-22 months were randomly assigned to sedentary (O-SED), low training frequency (O-EXL), and high training frequency group (O-EXH). Young rats were used as control. Compared to young rats, whole-cell BK(Ca) current was decreased, and amplitude of spontaneous transient outward currents were reduced. The open probability and Ca(2+)/voltage sensitivity of single BK(Ca) channel were declined in O-SED, accompanied with a reduction of tamoxifen-induced BK(Ca) activation; the mean open time of BK(Ca) channels was shortened whereas close time was prolonged. Aerobic exercise training markedly alleviated the aging-associated decline independent of training frequency. Exercise three times rather than five times weekly may be a time and cost-saving training volume required to offer beneficial effects to offset the functional declines of BK(Ca) during aging.
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Affiliation(s)
- N Li
- Institute for Fetology, First Hospital of Soochow University, Suzhou, China, Department of Exercise Physiology, Beijing Sport University, Beijing, China.
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49
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Liu N, Yu Z, Gao X, S. Song Y, Yuan J, Xun Y, Wang T, Yan F, Yuan S, Zhang J, Xiang S, H. Lo E, Wang X. Establishment of Cell-Based Neuroglobin Promoter Reporter Assay for Neuroprotective Compounds Screening. CNSNDDT 2016; 15:629-39. [DOI: 10.2174/1871527315666160321105612] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 10/02/2015] [Accepted: 11/19/2015] [Indexed: 11/22/2022]
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50
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Deng R, Liu B, Wang Y, Yan F, Hu S, Wang H, Wang T, Li B, Deng X, Xiang S, Yang Y, Zhang J. High Expression of the Newly Found Long Noncoding RNA Z38 Promotes Cell Proliferation and Oncogenic Activity in Breast Cancer. J Cancer 2016; 7:576-86. [PMID: 27053956 PMCID: PMC4820734 DOI: 10.7150/jca.13117] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 01/24/2016] [Indexed: 01/15/2023] Open
Abstract
The aberrant expression of long noncoding RNAs (lncRNAs) has great impacts on cancer origination and progression. In the current study, a newly found lncRNA Z38, which was identified through combining experiments of suppression subtractive hybridization (SSH) and reverse dot-blotting, was found to have high expression in breast cancer. More importantly, inhibiting Z38 expression by gene silencing greatly suppressed breast cancer cell proliferation and tumorigenesis, and treatment with Z38 siRNAs significantly induced cell apoptosis and inhibited tumor growth. In conclusion, the newly found lncRNA Z38, which plays important roles in breast cancer, may act as a candidate biomarker and therapeutic target in carcinomas.
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Affiliation(s)
- Rilin Deng
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Bin Liu
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Yan Wang
- 2. Department of Biological Engineering, Zunyi Medical College, Zhuhai Campus, Zhuhai, Guangdong 519041, China
| | - Feng Yan
- 3. College of Life Science, Hunan Normal University, Changsha, Hunan 410000, China
| | - Shifan Hu
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Hongcan Wang
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Tingting Wang
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Bin Li
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Xiyun Deng
- 4. Faculty of Basic Medical Sciences, Medical College, Hunan Normal University, Changsha, Hunan 410013, China
| | - Shuanglin Xiang
- 3. College of Life Science, Hunan Normal University, Changsha, Hunan 410000, China
| | - Yinke Yang
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Jian Zhang
- 1. College of Biology, Hunan University, Changsha, Hunan 410082, China
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