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Chen C, Cai H, Shen J, Zhang X, Peng W, Li C, Lv H, Wen T. Exploration of a hypoxia-immune-related microenvironment gene signature and prediction model for hepatitis C-induced early-stage fibrosis. J Transl Med 2024; 22:116. [PMID: 38287425 PMCID: PMC10826039 DOI: 10.1186/s12967-024-04912-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Liver fibrosis contributes to significant morbidity and mortality in Western nations, primarily attributed to chronic hepatitis C virus (HCV) infection. Hypoxia and immune status have been reported to be significantly correlated with the progression of liver fibrosis. The current research aimed to investigate the gene signature related to the hypoxia-immune-related microenvironment and identify potential targets for liver fibrosis. METHOD Sequencing data obtained from GEO were employed to assess the hypoxia and immune status of the discovery set utilizing UMAP and ESTIMATE methods. The prognostic genes were screened utilizing the LASSO model. The infiltration level of 22 types of immune cells was quantified utilizing CIBERSORT, and a prognosis-predictive model was established based on the selected genes. The model was also verified using qRT-PCR with surgical resection samples and liver failure samples RNA-sequencing data. RESULTS Elevated hypoxia and immune status were linked to an unfavorable prognosis in HCV-induced early-stage liver fibrosis. Increased plasma and resting NK cell infiltration were identified as a risk factor for liver fibrosis progression. Additionally, CYP1A2, CBS, GSTZ1, FOXA1, WDR72 and UHMK1 were determined as hypoxia-immune-related protective genes. The combined model effectively predicted patient prognosis. Furthermore, the preliminary validation of clinical samples supported most of the conclusions drawn from this study. CONCLUSION The prognosis-predictive model developed using six hypoxia-immune-related genes effectively predicts the prognosis and progression of liver fibrosis. The current study opens new avenues for the future prediction and treatment of liver fibrosis.
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Affiliation(s)
- Chuwen Chen
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Haozheng Cai
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Junyi Shen
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Xiaoyun Zhang
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Wei Peng
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Chuan Li
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China
| | - Haopeng Lv
- Department of General Surgery, ChengDu Shi Xinjin Qu Renmin Yiyuan: People's Hospital of Xinjin District, Chengdu, China
| | - Tianfu Wen
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Si Chuan University, Chengdu, 610041, China.
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Zhang X, Mu H, Zhong Y, Wang R, Li W. Effect of High Altitude Environment on Pharmacokinetic and Pharmacodynamic of Warfarin in Rats. Curr Drug Metab 2024; 25:54-62. [PMID: 38409697 DOI: 10.2174/0113892002277930240201101256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/22/2023] [Accepted: 01/12/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND High altitude environment affects the pharmacokinetic (PK) parameters of drugs and the PK parameters are an important theoretical basis for guiding the rational clinical use of drugs. Warfarin is an oral anticoagulant of the coumarin class commonly used in clinical practice, but it has a narrow therapeutic window and wide individual variation. However, the effect of high altitude environment on PK and pharmacodynamic (PD) of warfarin is unclear. OBJECTIVE The objective of this study is to investigate the effect of a high altitude environment on PK and PD of warfarin in rats. METHOD Rats were randomly divided into plain group and high altitude group and blood samples were collected through the orbital venous plexus after administration of 2 mg/kg warfarin. Warfarin concentrations in plasma samples were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and PK parameters were calculated by the non-compartment model using WinNonlin 8.1 software. Meanwhile, the expression of PXR, P-gp and CYP2C9 in liver tissues was also determined by western blotting. The effect of high altitude environment on PD of warfarin was explored by measuring activated partial thromboplastin time (APTT) and prothrombin time (PT) values and then calculated international normalized ratio (INR) values based on PT. RESULTS Significant changes in PK behaviors and PD of warfarin in high altitude-rats were observed. Compared with the plain-rats, the peak concentration (Cmax) and the area under the plasma concentration-time curve (AUC) increased significantly by 50.9% and 107.46%, respectively. At the same time, high altitude environment significantly inhibited the expression of PXR, P-gp and CYP2C9 in liver tissues. The results of the PD study showed that high altitude environments significantly prolonged PT, APTT and INR values. CONCLUSION High altitude environment inhibited the metabolism and increased the absorption of warfarin in rats and increased the effect of anticoagulant effect, suggesting that the optimal dose of warfarin for patients at high altitude should be reassessed.
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Affiliation(s)
- Xiaojing Zhang
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Hongfang Mu
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Yan Zhong
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Rong Wang
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Wenbin Li
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
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Zhang XB, Chen GP, Huang MH, Chen XX, Zhan FF, He XZ, Cai L, Zeng HQ. Bcl-2 19-kDa Interacting Protein 3 (BNIP3)-Mediated Mitophagy Attenuates Intermittent Hypoxia-Induced Human Renal Tubular Epithelial Cell Injury. MEDICAL SCIENCE MONITOR : INTERNATIONAL MEDICAL JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2022; 28:e936760. [PMID: 35836356 PMCID: PMC9295414 DOI: 10.12659/msm.936760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background As a novel pathophysiological characteristic of obstructive sleep apnea, intermittent hypoxia (IH) contributes to human renal tubular epithelial cells impairment. The underlying pathological mechanisms remain unrevealed. The present study aimed to evaluate the influence of Bcl-2 19-kDa interacting protein 3 (BNIP3)-mediated mitophagy on IH-induced renal tubular epithelial cell impairment. Material/Methods Human kidney proximal tubular (HK-2) cells were exposed to IH condition. IH cycles were as follows: 21% oxygen for 25 min, 21% descended to 1% for 35 min, 1% oxygen sustaining for 35 min, and 1% ascended to 21% for 25 min. The IH exposure lasted 24 h with 12 cycles of hypoxia and re-oxygenation. Both the siBNIP3 and BNIP3 vector were transfected to cells. Cell viability and apoptosis, mitochondrial morphology and function, and mitophagy were detected by cell counting kit-8, flow cytometry and TUNEL staining, transmission electron microscopy, western blotting, and immunofluorescence, respectively. Results In the IH-induced HK-2 cells, inhibition of BNIP3 further aggravated mitochondrial structure damage, and decreased mitophagy level, leading to increased cell apoptosis and decreased cell viability. While overexpression of BNIP3 enhanced mitophagy, which protected mitochondrial structure, it can decrease cell death in HK-2 cells exposed to IH. Conclusions The present study showed that BNIP3-mediated mitophagy plays a protective role against IH-induced renal tubular epithelial cell impairment.
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Affiliation(s)
- Xiao-Bin Zhang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Gong-Ping Chen
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China (mainland)
| | - Mao-Hong Huang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Xiang-Xing Chen
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen UniversityZhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Feng-Fu Zhan
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen UniversityZhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Xiu-Zhen He
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Ling Cai
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
| | - Hui-Qing Zeng
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University; The Third Clinical Medical College of Fujian Medical University, Xiamen, Fujian, China (mainland)
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