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Li QM, Xu T, Zha XQ, Feng XW, Zhang FY, Luo JP. Buddlejasaponin IVb ameliorates ferroptosis of dopaminergic neuron by suppressing IRP2-mediated iron overload in Parkinson's disease. J Ethnopharmacol 2024; 319:117196. [PMID: 37717841 DOI: 10.1016/j.jep.2023.117196] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/01/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Parkinson's disease (PD) is the second neurodegenerative disease that lacks effective treatments. Buddlejasaponin IVb (BJP-IVb) is the main bioactive component of herbs in genus Clinopodium which display antioxidative, anti-inflammatory and neuroprotective activities. However, the role of BJP-IVb in PD still remains unknown. AIM OF THE STUDY This study aimed to evaluate the effect of BJP-IVb on dopaminergic neurodegeneration in PD and clarified the underlying mechanisms from the aspect of iron overload-mediated ferroptosis. MATERIALS AND METHODS One-methyl-4-phenylpyridinium (MPP+) and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD models were established in this study. Behavioral tests, cell cytotoxicity assay, tyrosine hydroxylase (TH) and Nissl staining were performed to evaluate the antiparkinsonian effect of BJP-IVb. Cellular ultrastructure, iron content and lipid peroxidation were detected to evaluate iron overload-mediated dopaminergic neuron ferroptosis. Iron regulatory protein 2 (IRP2) and iron transport-related proteins were detected by immunofluorescence and Western blot to evaluated iron transport. Finally, plasmid vector-mediated IRP2 overexpression were performed to further clarify the molecular mechanism. RESULTS BJP-IVb alleviated MPP+-induced neurotoxicity in vitro and improved MPTP-induced dopaminergic neuron loss and motor dysfunctions of PD mice, confirming an effect of BJP-IVb against dopaminergic neurodegeneration of PD. Further results revealed that BJP-IVb protected against PD by suppressing iron overload-mediated dopaminergic neuron ferroptosis, as evidenced by the attenuated lipid peroxidation, decreased iron content and changes in cellular ultrastructure. Finally, the decreased iron regulatory protein (IRP2) was confirmed to be responsible for BJP-IVb-mediated ferroptosis suppression by modulating iron transport-related proteins and alleviating iron overload. CONCLUSION BJP-IVb suppressed iron overload-mediated dopaminergic neuron ferroptosis and improved motor dysfunctions in PD, which was achieved by inhibiting IRP2-mediated iron overload. This study provided a potential drug candidate for the treatment of PD.
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Affiliation(s)
- Qiang-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Tong Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Xue-Qiang Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Xiao-Wen Feng
- School of Pharmacy, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Feng-Yun Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China.
| | - Jian-Ping Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China.
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Zhang C, Wang XY, Zuo JL, Wang XF, Feng XW, Zhang B, Li YT, Yi CH, Zhang P, Ma XC, Chen ZM, Ma Y, Han JH, Tao BR, Zhang R, Wang TQ, Tong L, Gu W, Wang SY, Zheng XF, Yuan WK, Kan ZJ, Fan J, Hu XY, Li J, Zhang C, Chen JH. Localization and density of tertiary lymphoid structures associate with molecular subtype and clinical outcome in colorectal cancer liver metastases. J Immunother Cancer 2023; 11:jitc-2022-006425. [PMID: 36759015 PMCID: PMC9923349 DOI: 10.1136/jitc-2022-006425] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Tertiary lymphoid structures (TLSs) have been proposed to assess the prognosis of patients with cancer. Here, we investigated the prognostic value and relevant mechanisms of TLSs in colorectal cancer liver metastases (CRCLM). METHODS 603 patients with CRCLM treated by surgical resection from three cancer centers were included. The TLSs were categorized according to their anatomic subregions and quantified, and a TLS scoring system was established for intratumor region (T score) and peritumor region (P score). Differences in relapse-free survival (RFS) and overall survival (OS) between groups were determined. Multiplex immunohistochemical staining (mIHC) was used to determine the cellular composition of TLSs in 40 CRCLM patients. RESULTS T score positively correlated with superior prognosis, while P score negatively associated with poor survival (all p<0.05). Meanwhile, T score was positively associated with specific mutation subtype of KRAS. Furthermore, TLSs enrichment gene expression was significantly associated with survival and transcriptomic subtypes of CRCLM. Subsequently, mIHC showed that the densities of Treg cells, M2 macrophages and Tfh cells were significantly higher in intratumor TLSs than in peritumor TLSs (p=0.029, p=0.047 and p=0.041, respectively), and the frequencies of Treg cells and M2 macrophages were positively correlated with P score, while the frequencies of Tfh cells were positively associated with T scores in intratumor TLSs (all p<0.05). Next, based on the distribution and abundance of TLSs, an Immune Score combining T score and P score was established which categorized CRCLM patients into four immune classes with different prognosis (all p<0.05). Among them, patients with higher immune class have more favorable prognoses. The C-index of Immune Class for RFS and OS was higher than Clinical Risk Score statistically. These results were also confirmed by the other two validation cohorts. CONCLUSIONS The distribution and abundance of TLSs is significantly associated with RFS and OS of CRCLM patients, and a novel immune class was proposed for predicting the prognosis of CRCLM patients.
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Affiliation(s)
- Chong Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiang-Yu Wang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Jie-Liang Zuo
- Department of General Surgery, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - Xue-Fu Wang
- School of Pharmacy, Anhui Medical University, Hefei, China,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Wen Feng
- School of Pharmacy, Anhui Medical University, Hefei, China,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Bo Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Yi-Tong Li
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Chen-He Yi
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Peng Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Xiao-Chen Ma
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Zhen-Mei Chen
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Yue Ma
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Jia-Hao Han
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Bao-Rui Tao
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Rui Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Tian-Qi Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Li Tong
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wang Gu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Si-Yu Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Fei Zheng
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wen-Kang Yuan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zi-Jie Kan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jie Fan
- Department of Pathology, Huashan Hospital Fudan University, Shanghai, China
| | - Xiang-Yang Hu
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jun Li
- Department of General Surgery, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - Chao Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jin-Hong Chen
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
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Hu BF, Gong Q, Chen SQ, Yue L, Ma WX, Wang F, Feng XW, Wang JN, Li C, Liu MM, Wang XF, Meng XM, Li J, Wen JG. Protective effect of inhibiting necroptosis on gentamicin-induced nephrotoxicity. FASEB J 2022; 36:e22487. [PMID: 35947125 DOI: 10.1096/fj.202200163r] [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: 01/28/2022] [Revised: 07/14/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022]
Abstract
Necroptosis is defined as a novel programmed cell necrosis that is mediated by receptor interacting serine-threonine protein kinase 1 (RIPK1) and other related signals. Necrosis, apoptosis and inflammation are commonly considered as the leading mechanism in acute kidney injury (AKI) induced by gentamicin (GEN), which is a useful antibiotic for treating the infection of Gram-negative bacterial. However, the necroptosis in the pathogenesis of GEN-induced AKI is unknown. In this study, to investigate the process and function of necroptosis in GEN-induced AKI, NRK-52E and HK-2 cells and SD rats were used as the models. The necroptosis-related proteins, including RIPK1, RIPK3, mixed lineage kinase domain-like (MLKL) and phosphorylated MLKL (p-MLKL), were all increasing time-dependently when GEN was continuously given. By using the RIPK1 inhibitor necrostatin-1 (NEC-1) and RIPK3 inhibitor (CPD42), the GEN-induced toxicity of tubular cells was alleviated. Moreover, it was validated that GEN-induced cell apoptosis and inflammation were attenuated after treating with NEC-1 or CPD42, both in vivo and in vitro. When MLKL was knocked down by siRNA, NEC-1 and CPD42 can not further protect the damage of tubular cells by GEN. Although the using of pan-caspase inhibitor Z-VAD significantly decreased GEN-induced apoptosis, it enhanced necroptosis and slightly promoted the decreased cell viability in GEN-treated cells, with the protective effects weaker than NEC-1 or CPD42. Finally, in vitro minimum inhibitory concentration (MIC) tests and bacteriostatic ring studies showed that NEC-1 did not interfere with the antibiotic effects of GEN. Thus, suppressing necroptosis can serve as a promising strategy for the prevention of GEN-induced nephrotoxicity.
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Affiliation(s)
- Bing-Feng Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Qian Gong
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shi-Qing Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Lin Yue
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Wen-Xian Ma
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Fang Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Department of Pharmacy, Lu'an People's Hospital of Anhui Province, Lu'an Hospital of Anhui Medical University, Lu'an, China
| | - Xiao-Wen Feng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Chao Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Ming-Ming Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xue-Fu Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
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Cai L, Zhou MY, Hu S, Liu FY, Wang MQ, Wang XH, Jiang F, Feng XW, Liu XS, Li R. Umbelliferone Inhibits Migration, Invasion and Inflammation of Rheumatoid Arthritis Fibroblast-Like Synoviocytes and Relieves Adjuvant-Induced Arthritis in Rats by Blockade of Wnt/β-Catenin Signaling Pathway. Am J Chin Med 2022; 50:1945-1962. [PMID: 35997647 DOI: 10.1142/s0192415x22500835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 06/15/2023]
Abstract
Umbelliferone (UMB), a natural coumarin compound, has been reported to possess anti-rheumatic effects on rheumatoid arthritis (RA) experimental models, but its potential role of UMB in regulating migration, invasion and inflammation of RA fibroblast-like synoviocytes (FLS) remain unclear. Herein, MTT assay was performed to confirm the non-cytotoxic concentrations (10, 20, and 40[Formula: see text][Formula: see text]M) and the treatment time (24[Formula: see text]h) of UMB on TNF-[Formula: see text]-stimulated RA FLS (MH7A cells) in vitro. Results of wound-healing, transwell and phalloidin staining assays revealed that UMB inhibited TNF-[Formula: see text]-induced migration, invasion and F-actin cytoskeletal reorganization in MH7A. Results of ELISA, western blot and gelatin zymography indicated that UMB decreased the productions of pro-inflammatory factors, including IL-1[Formula: see text], IL-6, IL-8, MMP-2 and MMP-9, and inhibited MMP-2 activity in TNF-[Formula: see text]-stimulated MH7A cells. In vivo, UMB (25[Formula: see text]mg/kg and 50[Formula: see text]mg/kg) relieved the joint damage and synovial inflammation in rats with adjuvant-induced arthritis (AIA). Mechanistically, UMB could suppress Wnt/[Formula: see text]-catenin signaling both in TNF-[Formula: see text]-induced MH7A cells and in AIA rat synovium, evidenced by decreasing Wnt1 protein level, activating GSK-3[Formula: see text] kinase by blocking GSK-3[Formula: see text] (Ser9) phosphorylation, and reducing the protein level and nuclear translocation of [Formula: see text]-catenin. Importantly, combined use of lithium chloride (a Wnt/[Formula: see text]-catenin signaling agonist) eliminated the inhibitory effects of UMB on migration, invasion and inflammation in vitro and the anti-arthritic effects of UMB in vivo. We concluded that UMB inhibited TNF-[Formula: see text]-induced migration, invasion and inflammation of RA FLS and attenuated the severity of rat AIA through its ability to block Wnt/[Formula: see text]-catenin signaling pathway.
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Affiliation(s)
- Li Cai
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
- Department of Pathology, School of Basic Medicine, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Meng-Yuan Zhou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Shuang Hu
- Department of Pharmacy, Eye & ENT Hospital, Fudan University, Shanghai 200031, P. R. China
| | - Fang-Yuan Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Meng-Qing Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Xiao-Hua Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Fei Jiang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Xiao-Wen Feng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Xue-Song Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
| | - Rong Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui Province, P. R. China
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Liu PC, Feng XW, Zhao XM, Ye J, He FL, Liu H, Li RM, Wang XF, Zhao DH. Abnormal expression and clinical significance of surface receptors on natural killer cells in the peripheral blood of patients with non-small cell lung cancer. Neoplasma 2022; 69:931-939. [PMID: 35652620 DOI: 10.4149/neo_2022_220219n188] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/16/2022] [Indexed: 11/08/2022]
Abstract
Natural killer (NK) cells typically function as frontline lymphocytes against cancer although little is known about their engagement in non-small cell lung cancer (NSCLC). This study compared the performance and activity of NK cells and their subsets in the peripheral blood of NSCLC sufferers and healthy participants. In total, 67 healthy controls (40 males; 59.7%) and 56 patients with NSCLC (35 males; 62.5%) were included (mean age, 66.6 years). Flow cytometry identified NK cells and their subpopulations in external blood, and the total number, proportion, activity, surface activating, and inhibitory receptor expression levels were determined. Results showed that NK cell surface receptors CD107a, IFN-γ, and TNF-α activity were markedly reduced in lung cancer patients compared to healthy controls. The number and ratio of NK cells within the lymphocyte population were decreased in patients. The concentration of the inhibitory receptors TIGIT, TIM-3, CD96, PD-1, and Siglec-7 were increased in patients, whereas the expression level of the activating receptor NKP30 was decreased. Moreover, the expression levels of IFN-γ, TIGIT, CD96, PD-1, and TIM-3 were correlated with the clinical phase of NSCLC. These findings suggest that surface receptors from NK cells are likely to be involved in the evolution of NSCLC.
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Affiliation(s)
- Peng-Cheng Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Wen Feng
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Min Zhao
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Jing Ye
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Feng-Lian He
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Hui Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Ren-Ming Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Xue-Fu Wang
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Da-Hai Zhao
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
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Chen SQ, Hu BF, Yang YR, He Y, Yue L, Guo D, Wu TN, Feng XW, Li Q, Zhang W, Wen JG. The protective effect of rabeprazole on cisplatin-induced apoptosis and necroptosis of renal proximal tubular cells. Biochem Biophys Res Commun 2022; 612:91-98. [PMID: 35512462 DOI: 10.1016/j.bbrc.2022.04.107] [Citation(s) in RCA: 5] [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: 04/09/2022] [Accepted: 04/22/2022] [Indexed: 11/15/2022]
Abstract
Nephrotoxicity is a major adverse reaction of cisplatin-based chemotherapy. Organic cation transporter 2 (OCT2) which is located on the basement membrane of human proximal renal tubules is responsible for the renal accumulation of cisplatin and its nephrotoxicity. This study aimed to investigate the protective effect of PPIs to CP-induced nephrotoxicity. Three kinds of PPIs including lansoprazole, omeprazole and rabeprazole (Rab) were co-administrated with CP to mice. In addition, OCT2-overexpressed HEK293, HK-2 and A549 cells were co-incubated with CP and PPIs. The results showed that PPIs can attenuate CP-induced increase of CRE, BUN and histological damage of kidney. Among the three PPIs, Rab was found with a superior protective effect. It significantly reduced the accumulation of CP in OCT2-overexpressed HEK293 cells and in the renal cortex tissues of mice, but not in HK-2 cells. Moreover, Rab reduced the expression levels of cleaved-caspase-3, RIPK1, RIPK3, MLKL and p-MLKL and the apoptosis rate of renal tubular cells induced by CP in vivo, but not in HK-2 cells. However, Rab increased the viability of CP-treated cells in a concentration-dependent manner and attenuated CP-induced apoptosis and necroptosis in OCT2 over-expressed HEK293 cells. Finally, we demonstrated that Rab have no influence on the antitumor effect of CP. In conclusion, Rab attenuate CP-induced nephrotoxicity mainly through inhibiting OCT2-mediated CP uptake, without interfering with its anti-tumor property of inducing apoptosis and necroptosis.
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Affiliation(s)
- Shi-Qing Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Bing-Feng Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Ya-Ru Yang
- Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui, 230601, China
| | - Yuan He
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Lin Yue
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Dong Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Xiangya Medical School, Central South University, Hunan, 410007, China
| | - Ting-Ni Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Xiao-Wen Feng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Qing Li
- Department of Clinical Pharmacology, Xiangya Hospital, Xiangya Medical School, Central South University, Hunan, 410007, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Xiangya Medical School, Central South University, Hunan, 410007, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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Jin LM, Liu YX, Cheng J, Zhou L, Xie HY, Feng XW, Li H, Shen Y, Xu X, Zheng SS. The effect of SphK1/S1P signaling pathway on hepatic sinus microcirculation in rats with hepatic ischemia-reperfusion injury. Hepatobiliary Pancreat Dis Int 2022; 21:94-98. [PMID: 34233851 DOI: 10.1016/j.hbpd.2021.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 06/18/2021] [Indexed: 02/05/2023]
Affiliation(s)
- Li-Ming Jin
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China; Department of General Surgery, Hepatobiliary and Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Yuan-Xing Liu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Jian Cheng
- Department of General Surgery, Hepatobiliary and Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Hai-Yang Xie
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Xiao-Wen Feng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Hui Li
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Yan Shen
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Xiao Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Shu-Sen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China.
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Li LY, Yang JF, Rong F, Luo ZP, Hu S, Fang H, Wu Y, Yao R, Kong WH, Feng XW, Chen BJ, Li J, Xu T. ZEB1 serves an oncogenic role in the tumourigenesis of HCC by promoting cell proliferation, migration, and inhibiting apoptosis via Wnt/β-catenin signaling pathway. Acta Pharmacol Sin 2021; 42:1676-1689. [PMID: 33514855 PMCID: PMC8463676 DOI: 10.1038/s41401-020-00575-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023] Open
Abstract
Zinc finger E-box-binding homeobox 1 (ZEB1), a functional protein of zinc finger family, was aberrant expressed in many kinds of liver disease including hepatic fibrosis and Hepatitis C virus. Bioinformatics results showed that ZEB1 was abnormally expressed in HCC tissues. However, to date, the potential regulatory role and molecular mechanisms of ZEB1 are still unclear in the occurrence and development of HCC. This study demonstrated that the expression level of ZEB1 was significantly elevated both in liver tissues of HCC patients and cell lines (HepG2 and SMMC-7721 cells). Moreover, ZEB1 could promote the proliferation, migration, and invasion of HCC cells. On the downstream regulation mechanism, ZEB1 could activate the Wnt/β-catenin signaling pathway by upregulating the protein expression levels of β-catenin, c-Myc, and cyclin D1. Novel studies showed that miR-708 particularly targeted ZEB1 3'-UTR regions and inhibited the HCC cell proliferation, migration, and invasion. Furthermore, results of nude mice experiments of HCC model indicated that miR-708 could inhibit tumor growth and xenograft metastasis model was established to validate that miR-708 could inhibit HCC cell metastasis through tail-vein injection in vivo. Together, the study suggested that ZEB1 modulated by miR-708 might be a potential therapeutic target for HCC therapy.
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Affiliation(s)
- Liang-Yun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
| | - Jun-Fa Yang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, China
| | - Fan Rong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
- Lujiang County People's Hospital of Anhui Province, Hefei, 231500, China
| | - Zhi-Pan Luo
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
- The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Shuang Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
| | - Hui Fang
- Department of Pharmocology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, 310015, China
| | - Ying Wu
- The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Rui Yao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, China
| | - Wei-Hao Kong
- The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Xiao-Wen Feng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
| | - Bang-Jie Chen
- First Clinical Medical College of Anhui Medical University, Hefei, 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China
| | - Tao Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
- Institute for Liver Diseases of Anhui Medical University, Hefei, 230032, China.
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Liu WY, Feng XW, Cheng QL, Zhao XH, Li GM, Gu RZ. Identification and action mechanism of low-molecular-weight peptides derived from Atlantic salmon (Salmo salar L.) skin inhibiting angiotensin I–converting enzyme. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111911] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou MY, Cai L, Feng XW, Mu YR, Meng B, Liu FY, Li R. Lentivirus-Mediated Overexpression or Silencing of Aquaporin 1 Affects the Proliferation, Migration and Invasion of TNF-α-Stimulated Rheumatoid Arthritis Fibroblast-Like Synoviocytes by Wnt/β-Catenin Signaling Pathway. J Inflamm Res 2021; 14:1945-1957. [PMID: 34017191 PMCID: PMC8131072 DOI: 10.2147/jir.s312783] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022] Open
Abstract
Introduction Previous studies have confirmed the pathologic role of synovial aquaporin 1 (AQP1) in rheumatoid arthritis (RA), but its associations with the abnormal biologic behaviors of fibroblast-like synoviocytes (FLS) remain unclear. Herein, we examined the roles of AQP1 in the proliferation, migration and invasion of TNF-α-stimulated RA FLS (MH7A cells) and explored the underlying mechanisms. Materials and Methods Lentivirus-mediated AQP1 overexpression or silencing MH7A cells was constructed. Assays of MTT, flow cytometry (PI staining and Annexin V-PE/7-AAD staining), TMRM staining, wound-healing, transwell and phalloidin staining were performed to detect cell proliferation, cycle distribution, apoptosis, migration and invasion. The involvement of Wnt/β-catenin pathway was revealed by Western blot and β-catenin immunofluorescence staining. Results AQP1 overexpression promoted cell proliferation of TNF-α-stimulated MH7A by facilitating transformation from G0/G1 to S phase and inhibiting cell apoptosis (ie, reduced apoptosis rates, raised mitochondrial membrane potential, increased Bcl-2 protein level and decreased levels of Bax and cleaved caspase 3 protein). Also, AQP1 overexpression increased the migration index as well as the numbers of migrated and invasive cells. Furthermore, AQP1 overexpression promoted the activation of Wnt/β-catenin pathway, and XAV939, an inhibitor of Wnt/β-catenin, canceled the above effects of AQP1 overexpression on MH7A cells. As expected, AQP1 silencing exhibited the opposite effects on TNF-α-stimulated MH7A cells, which could be reversed by LiCl, an activator of Wnt/β-catenin. Conclusion AQP1 can affect the proliferation, migration and invasion of MH7A cells by Wnt/β-catenin signaling pathway, and AQP1 can be as a crucial determiner that can regulate RA FLS biologic behaviors.
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Affiliation(s)
- Meng-Yuan Zhou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Li Cai
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China.,Department of Pathology, School of Basic Medicine, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Xiao-Wen Feng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Yu-Rong Mu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Bo Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Fang-Yuan Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
| | - Rong Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, 230032, Anhui Province, People's Republic of China
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11
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Liu WY, Fang L, Feng XW, Li GM, Gu RZ. In vitro antioxidant and angiotensin I-converting enzyme inhibitory properties of peptides derived from corn gluten meal. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03552-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Li XM, Wang XY, Feng XW, Shao MM, Liu WF, Ma QQ, Wang EP, Chen J, Shao B. Serum interleukin-33 as a novel marker for long-term prognosis and recurrence in acute ischemic stroke patients. Brain Behav 2019; 9:e01369. [PMID: 31397082 PMCID: PMC6749472 DOI: 10.1002/brb3.1369] [Citation(s) in RCA: 10] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 06/03/2019] [Accepted: 06/08/2019] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Interleukin-33, a newly identified member of interleukin-1 family, had been confirmed to play a crucial role in regulating inflammatory responses in various disease. However, the exact role of interleukin-33 in the disease process of acute ischemic stroke still remains unclear. This study aims to demonstrate the relationship between interleukin-33 levels and long-term functional outcome as well as ischemic stroke recurrence. METHODS Three hundred and four first-ever acute ischemic stroke patients were recruited and basic information and history of all subjects taken within 72 hr on admission. The functional outcome was estimated by Barthel index. The multivariate logistic regression was used to analyze the prognosis, while the Cox proportional hazard model was applied to assess the recurrence risk. RESULTS Out of 304 subjects, 259 patients successfully completed scheduled two-year follow-up. We found that higher interleukin-33 levels correlated positively with better prognosis as compared with those with lower interleukin-33 levels who presented with poorer outcome (62.45 ± 20.50 ng/ml vs. 51.58 ± 19.16 ng/ml, p < .001). After adjustment of all confounders, interleukin-33 was associated with the one-year prognosis with an adjusted odds ratio of 0.956 (95% confidence interval, 0.937-0.976, p < .001). Furthermore, interleukin-33 levels were also closely related to recurrent ischemic stroke with an adjusted hazard ratio of 0.979 (95% confidence interval, 0.961-0.997, p = .025). CONCLUSIONS IL-33 can be used to predict the long-term outcomes and ischemic stroke recurrence in first-ever acute ischemic stroke patients.
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Affiliation(s)
- Xian-Mei Li
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Yang Wang
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Wen Feng
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Meng-Meng Shao
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wen-Fang Liu
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qin-Qin Ma
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - En-Pei Wang
- Department of Rehabilitation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jie Chen
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bei Shao
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Feng XW, Wu Y, Ding S, Tao XJ, Su PX, Shen YZ, Zhao HB. P6621A prediction rule for new-onset postoperative atrial fibrillation after off-pump coronary artery bypass graft surgery. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6621] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- X W Feng
- Capital Medical University School of Nursing, Beijing, China People's Republic of
| | - Y Wu
- Capital Medical University School of Nursing, Beijing, China People's Republic of
| | - S Ding
- Capital Medical University School of Nursing, Beijing, China People's Republic of
| | - X J Tao
- Capital Medical University School of Nursing, Beijing, China People's Republic of
| | - P X Su
- Beijing Chaoyang Hospital, Beijing, China People's Republic of
| | - Y Z Shen
- Beijing Chaoyang Hospital, Beijing, China People's Republic of
| | - H B Zhao
- Beijing Chaoyang Hospital, Beijing, China People's Republic of
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14
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Abstract
Recent studies suggested that bleaching agents may whiten teeth by oxidizing the fluorescent materials, which are the proteins located in the organic-inorganic interface. Therefore, we postulated that fluorescence of dentin came from dentin phosphoprotein (DPP) and that bleaching agents might bleach dentin by oxidizing DPP. Fifty-six specimens were randomly divided into 4 groups and exposed to distilled water, hydrogen peroxide (HP), ethylenediamine tetraacetic acid disodium salt (EDTA), and acetic acid for 24 h. After measuring the organic and inorganic components, fluorescence, and color characteristics of dentin before and after exposure, we found that when DPP was removed from dentin by EDTA, fluorescent intensity declined proportionally with the reduction in Raman relative intensity, and dentin was whitened considerably, with an Δ E value 6 times higher than that of the distilled water group. On the contrary, due to the incapability of acetic acid to dissolve DPP during decalcification, fluorescent intensity values and tooth color remained nearly unchanged after exposure to acetic acid. Dentin exposed to neutral HP showed no obvious morphologic and organic/inorganic component changes except for the destruction of DPP. Similarly, dramatically decreased fluorescent intensity and lightened color were found in the HP group. Moreover, DPP solution of the HP group exhibited decreased ultraviolet absorbance, especially between 250 and 300 nm, which arose from aromatic amino acids. The results indicated that DPP was responsible for the fluorescent properties of dentin and that HP might bleach dentin by the oxidization of aromatic amino acids in DPP. These findings are of great significance in promoting our further understanding of the mechanism of tooth bleaching and the fluorescent property of normal dentin.
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Affiliation(s)
- T Jiang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- 2 Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y R Guo
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X W Feng
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y Sa
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- 2 Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X Yang
- 3 Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Wang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - P Li
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y N Wang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- 3 Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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15
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Abstract
Biomimetics inspired by superstructures and extraordinary properties of teeth have resulted in tooth repair and the generation of novel materials. However, little attention has been paid to tooth color, whose origin remains unknown. Based on recent studies, fluorophores-mainly aromatic amino acids (AAAs) in proteins-might be responsible for tooth color. We synthesized carbonated hydroxyapatite (HA; the mineral phase of teeth) in the presence of different amino acids (AAs; the basic units of protein matrix of teeth) as a simplified model of teeth to explore the color source at the AA level. After measuring the fluorescence and color characteristics of HA-AAs before and after bleaching treatment, we found that only HA, synthesized in the presence of AAAs, exhibited remarkable fluorescence and color property. Furthermore, linearly increased fluorescence intensity and deeper color were observed with an increase in AAA content in HA-AAAs. Similarly, significantly decreased absorbance of HA-AAAs between 250 and 300 nm in ultraviolet spectra, declined fluorescence intensity, and decolored performance of HA-AAAs were observed after bleaching treatment. The results showed that AAAs contributed to the fluorescence and color properties of HA and that hydrogen peroxide might whiten HA-AAAs by oxidizing the benzene ring in AAAs. These findings are of great significance in promoting the synthesis of advanced tooth-colored materials and furthering our understanding of the possible mechanisms of hydrogen peroxide. Moreover, our study shed light on the importance of AAAs and might provide new ideas for investigations of biomineralization and biomimetics.
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Affiliation(s)
- Y R Guo
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - X Yang
- 2 Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - X W Feng
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Y Sa
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.,3 Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - M Wang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - P Li
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - T Jiang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.,3 Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
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Jia N, Shen YF, Liang JW, Feng XW, Wang HB, Misra RDK. Nanoscale spheroidized cementite induced ultrahigh strength-ductility combination in innovatively processed ultrafine-grained low alloy medium-carbon steel. Sci Rep 2017; 7:2679. [PMID: 28578391 PMCID: PMC5457431 DOI: 10.1038/s41598-017-02920-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 04/19/2017] [Indexed: 12/01/2022] Open
Abstract
We describe here innovative processing of low alloy medium-carbon steel with a duplex microstructure composed of nanoscale spheroidized cementite (Fe3C) in an ultrafine-grained (UFG) ferritic steel. After multi-pass rolling and intermittent annealing at 550 °C for 300 s, the obtained UFG-1 steel showed an average ferrite grain size of ~430 nm, containing nanoscale spheroidized cementite (Fe3C) particles with an average size of ~70 nm. On annealing at 600 °C for 300 s, the average size of ferritic grains was increased to ~680 nm and the average size of spheroidized Fe3C particles increased to ~90 nm, referred as UFG-2 steel. Tensile tests indicated that UFG-1 steel had high yield strength (σy) of 1260 MPa, and ultimate tensile strength (σUTS) of 1400 MPa. These values are higher than that of UFG-2 steel (σy = 1080 MPa and σUTS = 1200 MPa), suggesting that the strengthening contribution is a cumulative effect of decrease in ferrite grain size and nanoscale cementite. The incoherent interfaces between nanosized particles and the matrix acted as a strong barrier to dislocation motion. The study underscores that nanosized precipitates not only provide strength but also contribute to ductility, which is very encouraging for improving the ductility of medium-carbon steels.
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Affiliation(s)
- N Jia
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Y F Shen
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, 110819, China.
| | - J W Liang
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - X W Feng
- General Engineering Research Institute of Chinese Academy of Engineering Physics, Mianyang, 621999, China
| | - H B Wang
- General Engineering Research Institute of Chinese Academy of Engineering Physics, Mianyang, 621999, China
| | - R D K Misra
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, 79968, USA.
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Zhu XL, Han B, Feng XW. [Prenatal diagnosis for congenital nephritic syndrome Finnish type: a case report]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:342. [PMID: 28545272 DOI: 10.3760/cma.j.issn.0529-567x.2017.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Liao Z, Feng XW, Liu XE, Zhou YS, Wen HR, Peng SH, Zhang YX, Xu B, Zhuang H, Chen HY. [Immune response to one booster dose of inactivated hepatitis A vaccine in college students]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28651399 DOI: 10.3760/cma.j.issn.0254-6450.2017.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the safety and immunogenicity of one booster dose of inactivated hepatitis A vaccine in young adults. Methods: The subjects were selected from participants in the clinical trial of immunogenicity of inactivated and attenuated live hepatitis A vaccine in young adults. Eligible subjects were those who had received one dose of inactivated or attenuated hepatitis A vaccine, could be contacted and were sero-negative before primary vaccination. All qualified subjects were immunized with one booster dose of inactivated hepatitis A vaccine. The blood samples were collected before booster dose vaccination and 28 days after the immunization. Anti-HAV antibody titer ≥20 mIU/ml was considered to be sero-protected against hepatitis A virus. Results: The GMCs in the inactivated HAV vaccine group and attenuated live vaccine group before booster dose vaccination were 70.80 mIU/ml and 50.12 mIU/ml, respectively, and the sero-protection rates were 94.7% and 65.0%, respectively. After the vaccination of the booster dose, the sero-protection rates in both groups were 100.0%, and the GMCs were 2 816.09 mIU/ml and 2 654.55 mIU/ml, respectively. Conclusion: The GMCs and sero-protection rates of anti-HAV antibody in young adults declined after three years of the primary vaccination. However, the higher GMC and sero-protection rate were observed in the inactivated vaccine group than in the attenuated live vaccine group. Significant increases of GMC levels were observed in both groups after one booster dose vaccination.
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Affiliation(s)
- Z Liao
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - X W Feng
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - X E Liu
- Department of Microbiology and Parasitology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100083, China
| | - Y S Zhou
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - H R Wen
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - S H Peng
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - Y X Zhang
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - B Xu
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
| | - H Zhuang
- Department of Microbiology and Parasitology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100083, China
| | - H Y Chen
- Nanchang Municipal Center for Disease Control and Prevention, Nanchang 330038, China
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Shen T, Feng XW, Geng L, Zheng SS. Reversible sinusoidal obstruction syndrome associated with tacrolimus following liver transplantation. World J Gastroenterol 2015; 21:6422-6426. [PMID: 26034381 PMCID: PMC4445123 DOI: 10.3748/wjg.v21.i20.6422] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/26/2015] [Accepted: 04/09/2015] [Indexed: 02/06/2023] Open
Abstract
Sinusoidal obstruction syndrome (SOS), previously known as hepatic veno-occlusive disease, is a rare disorder in solid organ transplant patients, and is an uncommon complication after liver transplantation. Severe SOS with hepatic failure causes considerable mortality. Tacrolimus has been reported to be an offending agent, which potentially plays a role in the pathophysiological process of SOS. SOS due to tacrolimus has been reported in lung and pancreatic transplantations, but has never been described in a liver transplant recipient. Herein, we present a case of SOS after liver transplantation, which was possibly related to tacrolimus. A 27-year-old man developed typical symptoms of SOS with painful hepatomegaly, ascites and jaundice after liver transplantation, which regressed following withdrawal of tacrolimus. By excluding other possible predisposing factors, we concluded that tacrolimus was the most likely cause of SOS.
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Abstract
Immunocompromised individuals are susceptible to pulmonary Aspergillus infections, whereas invasive Aspergillus infection is extremely rare in the presence of normal immunity. A case of larynx-tracheobronchial-pulmonary aspergillosis in an immunocompetent 57-year-old female host who was successfully treated with amphotericin-B and voriconazole is reported here.
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Affiliation(s)
- W X Qu
- The First Respiratory Department of Shengjing Hospital, China Medical University, Shenyang, China
| | - X W Feng
- The First Respiratory Department of Shengjing Hospital, China Medical University, Shenyang, China
| | - L Zhao
- The First Respiratory Department of Shengjing Hospital, China Medical University, Shenyang, China
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Yao J, Feng XW, Yu XB, Xie HY, Zhu LX, Yang Z, Wei BJ, Zheng SS, Zhou L. Recipient IL-6-572C/G genotype is associated with reduced incidence of acute rejection following liver transplantation. J Int Med Res 2013; 41:356-64. [PMID: 23569034 DOI: 10.1177/0300060513477264] [Citation(s) in RCA: 10] [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] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE Acute rejection resulting from alloimmune responses is a major risk factor affecting patient survival following liver transplantation. Since interleukin (IL)-6 can mediate acute rejection, the association between IL-6 gene single nucleotide polymorphisms (SNPs) and incidence of acute rejection in liver transplant recipients was investigated. METHODS Patients who received liver transplant between January 2005 and December 2010 were typed for IL6-572C/G (rs1800796) polymorphisms using the snapshot technique. Association between genotype and acute rejection was analysed using the SNP Statistics website: http://bioinfo.iconcologia.net/snpstats/start.htm. Allelic and genotypic distributions for rs1800796 were compared among 335 patients with or without acute rejection within the first 6 months following liver transplant. RESULTS Incidence of acute rejection was 11.94%. A heterozygous CG genotype for IL6-572C/G was associated with a lower acute rejection rate compared with homozygous CC or GG genotypes. CONCLUSION IL6-572 CG genotype may be related to protection from acute rejection following liver transplant in Han Chinese patients.
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Affiliation(s)
- Jia Yao
- Division of Hepatobiliary and Pancreatic Surgery, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
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Li H, Xie HY, Zhou L, Feng XW, Wang WL, Liang TB, Zhang M, Zheng SS. Copy number variation in CCL3L1 gene is associated with susceptibility to acute rejection in patients after liver transplantation. Clin Transplant 2011; 26:314-21. [DOI: 10.1111/j.1399-0012.2011.01486.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Shi XD, He SM, Tao YC, Wang CY, Jiang YF, Feng XW, Sun J, Niu JQ. Prevalence of obesity and associated risk factors in Northeastern China. Diabetes Res Clin Pract 2011; 91:389-94. [PMID: 21130515 DOI: 10.1016/j.diabres.2010.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 09/25/2010] [Accepted: 11/04/2010] [Indexed: 10/18/2022]
Abstract
AIM To investigate the prevalence of obesity and associated risk factors in the Northeastern Chinese city of Dehui. METHODS A cross-sectional study involving random sampling methods generated 3598 completed questionnaires by permanent residents of Dehui. Binary multivariate logistic regression analysis was used to identify factors that were significantly associated with obesity. RESULTS Based on the 2000 WHO diagnostic criterion regarding populations in the Asia-Pacific region, the prevalence of obesity was 37.71% (34.77% of females; 41.11% of males). Elevated body mass index (BMI) was significantly associated with cardiovascular disease (CVD)-associated conditions (P<0.05), and increased prevalence of abnormally high transaminase levels (P<0.05). Binary logistic regression analysis demonstrated the following variables were associated with obesity: increased age (odds ratio [OR]: 1.01, 95% confidence interval [CI]: 1.0-1.02), high total cholesterol (TC) (OR: 1.26, 95% CI: 1.03-1.54), high triglycerides (TG) (OR: 1.38, 95% CI: 1.16-1.64), hypertension (OR: 1.62, 95% CI: 1.39-1.90), fatty liver (OR: 2.91, 95% CI: 2.41-3.49), living in an urban setting (OR: 2.84, 95% CI: 2.39-3.38), and advanced education (OR: 1.22, 95% CI: 1.06-1.40). CONCLUSIONS Obesity is prevalent among the adult population in Northeastern China and is significantly associated with CVD risk factors such as hypertension, dyslipidemia, as well as transaminase abnormalities.
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Affiliation(s)
- X D Shi
- Department of Hepatology, First Hospital, Jilin University, Changchun, Jilin, China
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Wu LM, Yang Z, Zhou L, Zhang F, Xie HY, Feng XW, Wu J, Zheng SS. Identification of histone deacetylase 3 as a biomarker for tumor recurrence following liver transplantation in HBV-associated hepatocellular carcinoma. PLoS One 2010; 5:e14460. [PMID: 21206745 PMCID: PMC3012077 DOI: 10.1371/journal.pone.0014460] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 11/23/2010] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Recent studies have shown that high expression levels of class I histone deacetylases (HDACs) correlate with malignant phenotype and poor prognosis in some human tumors. However, the expression patterns and prognostic role of class I HDAC isoforms in hepatocellular carcinoma (HCC) remain unclear. METHODOLOGY/PRINCIPAL FINDINGS The expression patterns and clinical significance of class I HDAC isoforms were assessed by immunohistochemistry in a cohort of 43 hepatitis B virus-associated HCC patients treated with liver transplantation. In addition, the effects of HDAC inhibition on HCC cell behavior were investigated by knockdown of the HDAC isoform with short interfering RNA. Class I HDACs were highly expressed in a subset of HCCs with positivity for HDAC1 in 51.2%, HDAC2 in 48.8%, and HDAC3 in 32.6% of cases. The expression levels of HDAC isoforms were significantly associated with the proliferation index of HCC. Kaplan-Meier curves showed that a high expression level of HDAC2 or HDAC3 implicated significantly reduced recurrence-free survival. Cox proportional hazards model analysis revealed HDAC3 overexpression was an unfavorable independent prognostic factor (P = 0.002; HR 3.907). In vitro, inhibition of HDAC2 and HDAC3, but not HDAC1, suppressed proliferation and the invasiveness of liver cancer cells. CONCLUSIONS/SIGNIFICANCE Our findings demonstrate that HDAC3 plays a significant role in regulating tumor cell proliferation and invasion, and it could be served as a candidate biomarker for predicting the recurrence of hepatitis B virus-associated HCC following liver transplantation and a potential therapeutic target.
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Affiliation(s)
- Li-Ming Wu
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhe Yang
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Lin Zhou
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Feng Zhang
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hai-Yang Xie
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiao-Wen Feng
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jian Wu
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shu-Sen Zheng
- Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- * E-mail:
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Cheng J, Zhou L, Qin YS, Wang Y, Xie HY, Feng XW, Zheng SS. Donor apoptotic lymphocyte transfusion-induced liver allograft tolerance by up-regulation of CD4(+)CD25(+) regulatory T cells in peripheral blood. Transplant Proc 2010; 41:3893-7. [PMID: 19917407 DOI: 10.1016/j.transproceed.2009.05.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Accepted: 05/04/2009] [Indexed: 02/01/2023]
Abstract
Uptake of apoptotic cells by antigen-presenting cells (APC) may be involved in tolerance maintenance with an immunoregulatory role. The aim of this study was to evaluate the consequences of preoperative transfusion of donor apoptotic lymphocytes on survival of orthotopic liver transplantations (OLT). OLT was performed between Lewis (donor) and Brown Norway (BN recipient) inbred rats using a double-cuff technique. Apoptotic splenic lymphocytes induced by ultraviolet-C (UVC) irradiation were infused intravenously at 7 days before OLT. Changes in regulatory T cells in blood were determined using flow cytometry. UVC irradiated lymphocytes were sensitive and effective, as evidenced by increased peripheral blood CD4(+)CD25(+) T cells compared with recipients that received infusion of untreated donor lymphocytes or a control. Apoptotic lymphocyte transfusion prolonged hepatic allograft survival, with significantly lower histological stages of inflammation and cellular infiltration than in untreated allografts. Our results demonstrated that donor apoptotic cells promoted allograft acceptance and up-regulated CD4(+)CD25(+) regulatory T cells (Treg) in blood.
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Affiliation(s)
- J Cheng
- Department of Surgery, the First Affiliated Hospital, Zhejiang University, Zhejiang Province, People's Republic of China
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Wang W, Kong J, Sun J, Wang CY, Chen HY, Jiang YF, Feng XW, He SM, Niu JQ. Epidemiological Investigation of Metabolic Syndrome and Analysis of Relevant Factors in North-Eastern China. J Int Med Res 2010; 38:150-9. [PMID: 20233524 DOI: 10.1177/147323001003800117] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This epidemiological study was conducted to investigate the prevalence of metabolic syndrome and associated risk factors in Chinese subjects from Dehui in northeastern China. Using a random sampling method, a questionnaire was completed by 3785 permanent residents aged 18-72 years and relevant clinical data were collected from each subject. Binary multivariate logistic regression analysis was used to identify factors that were significantly associated with metabolic syndrome. Based on the International Diabetes Federation definition, the prevalence of metabolic syndrome was 22.4%, which is higher than that of the general Chinese population. Metabolic syndrome occurred more frequently in females and the prevalence gradually increased with age. Living in an urban setting and being female, > 50 years old, overweight, having total cholesterol ≥ 5.18 mmol/l, low-density lipoprotein cholesterol ≥ 3.1 mmol/l, and a fatty liver were significant risk factors associated with metabolic syndrome.
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Affiliation(s)
- W Wang
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - J Kong
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - J Sun
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - CY Wang
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - HY Chen
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - YF Jiang
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - XW Feng
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - SM He
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - JQ Niu
- Department of Internal Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
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Jin LM, Liu YX, Zhou L, Xie HY, Feng XW, Li H, Zheng SS. Ischemic Preconditioning Attenuates Morphological and Biochemical Changes in Hepatic Ischemia/Reperfusion in Rats. Pathobiology 2010; 77:136-46. [DOI: 10.1159/000292647] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Accepted: 12/03/2009] [Indexed: 12/30/2022] Open
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Cheng J, Zhou L, Jiang JW, Qin YS, Xie HY, Feng XW, Gao F, Zheng SS. Proteomic analysis of differentially expressed proteins in rat liver allografts developed acute rejection. ACTA ACUST UNITED AC 2009; 44:43-51. [PMID: 19996597 DOI: 10.1159/000264602] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 08/14/2009] [Indexed: 12/28/2022]
Abstract
BACKGROUND Acute rejection (AR) after liver transplantation is a cell-mediated immune response that takes place within the allograft and results in graft dysfunction and failure, but the molecular mechanisms about hepatocyte dysfunction remain poorly understood. Here we characterized global protein expression changes in liver allograft during AR. METHODS The effect of an alloantigen-dependent immunological response was evaluated by syngeneic and allogeneic rat orthotopic liver transplantation (OLT). Using a combination of two-dimensional gel electrophoresis and mass spectrometry, we identified 18 differentially expressed proteins in AR allograft compared with matched tolerance allograft. Serum chemistry and allograft histology were determined. RESULTS Allogeneic OLT recipients exhibited elevated plasma levels of liver injury markers, progressive portal and venous inflammation and cellular infiltration in liver allograft compared with syngeneic OLT. 18 protein expressions altered by AR play important roles in metabolism, oxidative stress defense, signal transduction, biotransformation and transport. Decreased expression of protein disulfide isomerase in AR allograft was confirmed by Western blotting and immunohistochemistry. CONCLUSIONS This study uncovered new mechanistic insights into graft dysfunction in AR of liver allograft. Several significantly altered protein expressions act coordinately in hepatocyte dysfunction by depressed energy, enhanced oxidative stress-induced molecular damage and restrained biotransformation. The present findings may open new avenues for the understanding and prevention of graft dysfunction and failure during AR.
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Affiliation(s)
- J Cheng
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, and Key Laboratory of Organ Transplantation, Zhejiang Province, Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Liu YX, Jin LM, Zhou L, Xie HY, Jiang GP, Wang Y, Feng XW, Chen H, Yan S, Zheng SS. Mycophenolate mofetil attenuates liver ischemia/reperfusion injury in rats. Transpl Int 2009; 22:747-56. [DOI: 10.1111/j.1432-2277.2009.00866.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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30
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Zhang F, Wu LM, Zhou L, Chen QX, Xie HY, Feng XW, Zheng SS. Predictive Value of Expression and Promoter Hypermethylation of XAF1 in Hepatitis B Virus-Associated Hepatocellular Carcinoma Treated with Transplantation. Ann Surg Oncol 2008; 15:3494-502. [DOI: 10.1245/s10434-008-0146-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Accepted: 08/12/2008] [Indexed: 12/20/2022]
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31
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Shou J, Feng XW. [DNA damage induced by fotemustine in cultured HL60 cells]. Zhongguo Yao Li Xue Bao 1996; 17:474-7. [PMID: 9863179] [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: 04/11/2023]
Abstract
AIM To detect DNA damage caused by fotemustine (Fot). METHODS DNA damage in HL60 cells was evaluated by modified alkaline elution technique. DNA interstrand crosslink (ISC) and DNA-protein crosslink (DPC) were determined. Carmustine (Car) was used as control. Drug treatment time was 1 h. RESULTS After treatment with Fot 300 mumol.L-1, ISC and DPC index were 5.4 and 6.1 at 6 h, 2.7 and 1.2 at 12 h, respectively. ISC reached the maximum at about 6 h. For Fot 100 mumol.L-1, ISC and DPC index at ISC peak time were 2.1 +/- 0.9 and 3.55 +/- 0.23, 5.0 +/- 0.5 and 7.7 +/- 1.1 for Car 100 mumol.L-1, respectively. Single strand break (SSB) was induced by Fot. CONCLUSION Fot caused HL60 cell DNA ISC, DPC, and SSB. ISC was formed more quickly by Fot than that by Car.
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Affiliation(s)
- J Shou
- Institute of Pharmacology and Toxicology, Beijing, China
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Chen LZ, Feng XW, Zhou JH. Effects of Rehmannia glutinosa polysaccharide b on T-lymphocytes in mice bearing sarcoma 180. Zhongguo Yao Li Xue Bao 1995; 16:337-40. [PMID: 7668105] [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: 01/26/2023]
Abstract
AIM To study immuno-antitumor action mechanism of RGP-b. RGP-b (Rehmannia glutinosa polysaccaride b) is a new component isolated from the herb, had an average molecular mass of 160 kDa and 5 kinds of monosaccharides as acid-splitting products. Its HPLC showed a main sharp peak at 162 kDa. METHODS The kinetic effects of RGP-b on IL-2 secretion, cytotoxic T-lymphocyte (CTL) activities and L3T4+, lyt-2+ T-lymphocyte subset in mice bearing S180 were observed. RESULTS RGP-b 10 or 20 mg kg-1 ip obviously attenuated the decrease of CTL cytotoxity caused by excessive tumor growth on d 9 after the administration, but only partly ameliorated the descent of IL-2. Its effect on lyt-2+ subset was quite parallel with that on CTL cytotoxity. RGP-b kept the ratio of L3T4+ to lyt-2+ subset lower than that of control. CONCLUSION Improving the production of lyt-2+ CTL and its cytotoxity were an essential immuno-antitumor mechanisms of RGP-b.
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Affiliation(s)
- L Z Chen
- Institute of Pharmacology and Toxicology, Academy of Military Medical Science, Beijing, China
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Chen LY, Feng XW, Su Y, Ma HZ, Qian YH. Design of a scanning ellipsometer by synchronous rotation of the polarizer and analyzer. Appl Opt 1994; 33:1299-1305. [PMID: 20862155 DOI: 10.1364/ao.33.001299] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We have designed and constructed a new type of spectroscopic ellipsometer to study the optical properties of materials in the 3500-8000-Å wavelength range. In the system, the analyzer and polarizer are driven 10(4) steps/revolution by two stepping motors that have hollow shafts and rotate synchronously with a speed ratio of 2:1, i.e., A = 2P. Both the polarizer and analyzer are mounted directly on the shafts to avoid mechanical transmission and vibration problems entirely and make the system simple and reliable. An additional source polarizer was placed in the optical path to reduce the slight polarization effects of the light source. The light intensity finally received by the detector contained five components, one dc and four ac, with frequencies of ω(0), 2ω(0), 3ω(0), and 4ω(0), respectively. One can independently obtain the ellipsometric parameters of ψ and Δ as well as the optical constants by calculating any one of the two sets of ac signals, with a raw data self-consistency of better than 0.5%. The incident angle, aligned precisely by a laser beam, was continuously variable through a mechanical system with a computercontrolled resolution of 0.001° or a visual resolution of 0.005°. The system operations, including data acquisition and reduction, high-voltage control of the photomultiplier, incident angle, as well as wavelength setting and scanning, were fully and automatically controlled by a 386-based microcomputer. We self-calibrated the system by adjusting and setting precisely the initial azimuthal angles of the prisms. The results from the measured spectra of the complex refractive index for a gold-film sample are presented, and we show that the data obtained at three different incident angles of 65°, 70°, and 75° are remarkably consistent with one another. A comparison of the two results from the ellipsometry and reflectance measurements is given. The experimental skills and system error reduction are discussed in detail.
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Gong FL, Feng XW, Grosse-Wilde H. Impaired antigen-presenting capability of monocytes correlated with their decreased expression of HLA-II antigens in patients with myeloid leukemia. J Tongji Med Univ 1993; 13:65-70. [PMID: 8230358 DOI: 10.1007/bf02887918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Antigen-presenting capability and expression of HLA-II antigens on peripheral blood monocytes were analyzed by isotope incorporation technique and indirect immunofluorescence assay with monoclonal antibodies Tü 22, Tü 36 and anti-Leu-M2 in patients with acute and chronic myeloid leukemias (AML, CML). All patients (17 AML and 13 CML) demonstrated impaired antigen-presenting capability of monocytes (P < 0.001), when compared with simultaneously studied controls, which were HLA-identical normal siblings of the patients. These patients also showed a markedly decreased proportion of MAC-120- and HLA-DQ-positive monocytes as compared with the controls (P < 0.001), while the percentage of HLA-DR-positive monocytes in the patients was similar to that observed in the controls (P > 0.05). These findings suggested, therefore, that impaired antigen-presenting capability of monocytes correlated with their decreased expression of HLA-DQ in patients with acute and chronic myeloid leukemias.
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Affiliation(s)
- F L Gong
- Department of Immunology, Tongji Medical University, Wuhan
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35
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Xiong SQ, Feng XW. [Expression of HLA class II antigens on human monocytes and its relation to antigen-presenting function]. Sheng Li Ke Xue Jin Zhan 1991; 22:159-61. [PMID: 1724572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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36
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Chen N, Feng XW. Effect of anti-inflammatory Agent No.6 for injection on the cAMP content of rat peritoneal macrophages. J Tongji Med Univ 1987; 7:70-3. [PMID: 2821288 DOI: 10.1007/bf02888164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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37
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Chen X, Feng XW. Effects of anti-inflammatory Agent No.6 for injection on the oxidative burst of rat peritoneal macrophages. J Tongji Med Univ 1987; 7:65-9. [PMID: 3656488 DOI: 10.1007/bf02888163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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38
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Chen ZC, Tong ET, Wan CC, Huang GZ, Sun SG, Mei YW, Fang SY, Yang MS, Feng XW, Shi CZ. Studies on hypokalemic flabbiness disease. Acta Academiae Medicinae Wuhan 1984; 4:197-201. [PMID: 6549350 DOI: 10.1007/bf02857163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Deng ZD, Feng XW, Huang GZ, Shi CZ, Wan CC. [Experimental chronic poisoning with raw cottonseed oil in monkeys: special reference to disorders of thermoregulation and injuries to the sex organs]. Acta Acad Med Wuhan 1983; 3:165-70. [PMID: 6688663 DOI: 10.1007/bf02856652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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40
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Feng XW, Deng ZD, Zhao CS, Wan CC. [Effect of raw cottonseed oil on the genital system of hens]. Acta Acad Med Wuhan 1983; 3:171-4. [PMID: 6688664 DOI: 10.1007/bf02856653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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41
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Huang GZ, Wang DX, Chen ZC, Shi CZ, Feng XW, Xiao SR, Wang CC, Luo TC, Yin ZR. [Etiological study of the burning sensation disease]. Acta Acad Med Wuhan 1983; 3:161-4. [PMID: 6621973 DOI: 10.1007/bf02856651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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