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Kai Qu, Chang Liu, Aasef M A Mansoor, Bo Wang, Jincai Chen, Liang Yu, Yi Lv
《医学前沿（英文）》 2011年 第5卷 第4期 页码 434-437 doi: 10.1007/s11684-011-0157-3
关键词： liver abscess locally advanced colon cancer multiorganic invasion
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《医学前沿（英文）》 2018年 第12卷 第3期 页码 262-268 doi: 10.1007/s11684-017-0584-x
γδ T cells display unique developmental, distributional, and functional patterns and can rapidly respond to various insults and contribute to diverse diseases. Different subtypes of γδ T cells are produced in the thymus prior to their migration to peripheral tissues. γδ T cells are enriched in the liver and exhibit liver-specific features. Accumulating evidence reveals that γδ T cells play important roles in liver infection, non-alcoholic fatty liver disease, autoimmune hepatitis, liver fibrosis and cirrhosis, and liver cancer and regeneration. In this study, we review the properties of hepatic γδ T cells and summarize the roles of γδ T cells in liver diseases. We believe that determining the properties and functions of γδ T cells in liver diseases enhances our understanding of the pathogenesis of liver diseases and is useful for the design of novel γδ T cell-based therapeutic regimens for liver diseases.
关键词： γδT cells liver infection non-alcoholic fatty liver disease autoimmune hepatitis liver fibrosis and cirrhosis liver cancer liver regeneration
肝内区域免疫对肝移植后肿瘤复发的影响 Review
刘江, 卢宠茂, 万钧
《工程（英文）》 2022年 第10卷 第3期 页码 57-64 doi: 10.1016/j.eng.2021.11.012
肝脏恶性肿瘤是肝移植的一个主要适应症，但是肝移植后肿瘤复发却是影响受体长期生存的一个严峻临床挑战。肿瘤生物学特征、分期和移植后的免疫抑制状态一直被认为是肝癌复发的危险因素。而越来越多的证据表明，肝脏缺血再灌注（IR）对同种异体移植物的损伤则为肝移植后的肿瘤细胞侵袭性、转移性
提供了有利的免疫微环境。在活体肝移植中，边缘移植物（如小体积或脂肪移植物）的严重损伤与较低的无复发生存率之间的相关性，证实了IR 损伤与肿瘤复发之间的关联。IR 可引起肝内免疫微环境重构，包括恶化移植物损伤的促炎反应和加快组织修复的抗炎反应。然而，肝内区域免疫对移植后肿瘤复发的作
用尚不清晰。本文详述了IR 损伤诱导的肝内体液微环境和调节性区域免疫微环境，以及它们如何影响肝移植后肿瘤复发的最新研究进展。综合理解移植后肝内区域免疫，将为移植后肿瘤复发提供精准诊断、治疗和预后预测的新策略。
Tumor growth and metastasis can be inhibited by maintaining genomic stability in cancer cells
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《医学前沿（英文）》 2015年 第9卷 第1期 页码 57-62 doi: 10.1007/s11684-015-0389-8
The existence of cancer stem cells, stem-like cancer cells (SLCCs), or tumor-initiating cells is considered as the cause of tumor formation and recurrence, indicating the importance of studying novel therapy that targets SLCCs. The origin of SLCCs is controversial because of two competing hypotheses: SLCCs are either transformed from tissue adult stem cells or dedifferentiated from transformed progenitor cells. Our previous research demonstrates that SLCCs are inducible by increasing genomic instability in cancer cells. In this study, to block the emergence of SLCCs, aminoethyl isothiourea (AET), a compound that clears free radicals and is used to protect patients from radioactive exposure, was used as an agent that maintains genomic stability in combination with mitomycin C (MMC), a commonly used chemotherapeutic drug that damages DNA. Using a rabbit tumor model with VX2 hepatic carcinoma, we found that MMC alone increased lung metastases and disadvantaged survival outcome, but the combination of MMC and AET reversed this effect and even prolonged overall survival. Moreover, in a VX2 xenograft model by immunocompromised mice, MMC alone enriched tumor-initiating cells, but the administration of MMC in combination with AET eliminated tumor cells effectively. Furthermore, MMC alone enhanced genomic instability, but MMC combined with AET attenuated the extent of genomic instability in primary VX2 tumor tissue. Taken together, our data suggest that the genomic protector AET can inhibit the induction of SLCCs, and this combination treatment by AET and cytotoxic agents should be considered as a promising strategy for future clinical evaluation.
关键词： rabbit VX2 liver tumor mitomycin C AET stem-like cancer cells genomic instability
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《医学前沿（英文）》 2011年 第5卷 第1期 页码 1-7 doi: 10.1007/s11684-010-0105-7
Partial liver transplantation, including reduced-size liver transplantation, split liver transplantation, and living donor liver transplantation, has been developed with several innovative techniques because of donor shortage. Reduced-size liver transplantation is based on Couinaud’s anatomical classification, benefiting children and small adult recipients but failing to relieve the overall donor shortage. Split liver transplantation provides chances to two or even more recipients when only one liver graft is available. The splitting technique must follow stricter anatomical and physiological criteria either ex situ or in situto ensure long-term quality. The first and most important issue involving living donor liver transplantation is donor safety. Before surgery, a series of donor evaluations—including anatomical, liver volume, and liver function evaluations—is indispensable, followed by ethnic agreement. At different recipient conditions, auxiliary liver transplantation and auxiliary partial orthotopic liver transplantation, which employ piggyback techniques, are good alternatives. Partial liver transplantation enriches the practice and knowledge of the transplant society.
关键词： partial liver transplantation reduced-size liver transplantation split liver transplantation living donor liver transplantation
Epigenetic dysregulation in hepatocellular carcinoma: focus on polycomb group proteins
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《医学前沿（英文）》 2013年 第7卷 第2期 页码 231-241 doi: 10.1007/s11684-013-0253-7
Hepatocellular carcinoma (HCC) development is characterized by the presence of epigenetic alterations, including promoter DNA hypermethylation and post-translational modifications of histone, which profoundly affect expression of a wide repertoire of genes critical for cancer development. Emerging data suggest that deregulation of polycomb group (PcG) proteins, which are key chromatin modifiers repressing gene transcription during developmental stage, plays a causative role in oncogenesis. PcG proteins assemble into polycomb repressive complex 1 (PRC1) and polycomb repressive complex 2 (PRC2) to impose the histone H3 lysine 27 trimethylation (H3K27me3) modification for repression. In this review, we will first recapitulate the mechanisms of two key epigenetic pathways: DNA methylation and histone modifications. Specifically, we will focus our discussion on the molecular roles of PcG proteins. Next, we will highlight recent findings on PcG proteins, their clinicopathological implication and their downstream molecular consequence in hepatocarcinogenesis. Last but not least, we will consider the therapeutic potential of targeting enhancer of zeste homolog 2 (EZH2) as a possible treatment for HCC. Improving our understanding on the roles of PcG proteins in hepatocarcinogenesis can benefit the development of epigenetic-based therapy.
关键词： liver cancer epigenetics histone modifications polycomb group proteins enhancer of zeste homolog 2 (EZH2)
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《医学前沿（英文）》 2018年 第12卷 第3期 页码 249-261 doi: 10.1007/s11684-018-0622-3
Natural killer T cells are innate-like and tissue-resident lymphocytes, which recognize lipid antigens and are enriched in the liver. Natural killer T cells play important roles in infections, tumors, autoimmune diseases, and metabolic diseases. In this study, we summarize recent findings on biology of natural killer T cells and their roles in hepatitis B virus and hepatitis C virus infection, autoimmune liver diseases, alcoholic liver disease, nonalcoholic fatty liver disease, and hepatocellular carcinoma. Controversial results from previous studies are discussed, and indicate the dynamic alteration in the role of natural killer T cells during the progression of liver diseases, which might be caused by changes in natural killer T subsets, factors skewing cytokine responses, and intercellular crosstalk between natural killer T cells and CD1d-expressing cells or bystander cells.
关键词： natural killer T cells hepatitis B virus and hepatitis C virus infection autoimmune liver diseases alcoholic liver disease nonalcoholic fatty liver disease hepatocellular carcinoma
Natural killer cells in liver diseases
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《医学前沿（英文）》 2018年 第12卷 第3期 页码 269-279 doi: 10.1007/s11684-018-0621-4
The liver has been characterized as a frontline lymphoid organ with complex immunological features such as liver immunity and liver tolerance. Liver tolerance plays an important role in liver diseases including acute inflammation, chronic infection, autoimmune disease, and tumors. The liver contains a large proportion of natural killer (NK) cells, which exhibit heterogeneity in phenotypic and functional characteristics. NK cell activation, well known for its role in the immune surveillance against tumor and pathogen-infected cells, depends on the balance between numerous activating and inhibitory signals. In addition to the innate direct “killer” functions, NK cell activity contributes to regulate innate and adaptive immunity (helper or regulator). Under the setting of liver diseases, NK cells are of great importance for stimulating or inhibiting immune responses, leading to either immune activation or immune tolerance. Here, we focus on the relationship between NK cell biology, such as their phenotypic features and functional diversity, and liver diseases.
关键词： natural killer cell phenotype immune activation immune tolerance liver diseases
Ling Dai, Xiang Gao, Zhihua Ye, Hanmin Li, Xin Yao, Dingbo Lu, Na Wu
《医学前沿（英文）》 2021年 第15卷 第3期 页码 495-505 doi: 10.1007/s11684-020-0790-9
关键词： hepatitis B virus-related liver failure traditional Chinese medicine liver regeneration liver regeneration microenvironment cytokines
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《医学前沿（英文）》 2015年 第9卷 第3期 页码 322-330 doi: 10.1007/s11684-015-0408-9
This study systematically evaluates the TCGA whole-transcriptome sequencing data of hepatocellular carcinoma (HCC) by comparing the global gene expression profiles between tumors and their corresponding non-tumorous liver tissue. Based on the differential gene expression analysis, we identified a number of novel dysregulated genes, in addition to those previously reported. Top-listing upregulated (CENPF and FOXM1) and downregulated (CLEC4G, CRHBP, and CLEC1B) genes were successfully validated using qPCR on our cohort of 65 pairs of human HCCs. Further examination for the mechanistic overview by subjecting significantly upregulated and downregulated genes to gene set enrichment analysis showed that different cellular pathways were involved. This study provides useful information on the transcriptomic landscape and molecular mechanism of hepatocarcinogenesis for development of new biomarkers and further in-depth characterization.
Assessment of liver volume variation to evaluate liver function
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《医学前沿（英文）》 2012年 第6卷 第4期 页码 421-427 doi: 10.1007/s11684-012-0223-5
In order to assess the value of liver volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volume and severity of the hepatic diseases. The clinical data of 48 cirrhosis patients with 60 normal controls and 39 ALF patients were collected. Computed tomography-derived liver volume (CTLV) and body surface area (BSA) of normal controls were calculated to get a regression formula for standard liver volume (SLV) and BSA. Then CTLV and SLV of all patients were calculated and grouped by Child-Turcotte-Pugh classification for cirrhosis patients and assigned according to prognosis of ALF patients for further comparison. It turned out that the mean liver volume of the control group was 1 058±337 cm3. SLV was correlated with BSA according to the regression formula. The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level it was significantly reduced with the lowest liver volume index (CTLV/SLV). Likewise, in the death group of ALF patients, the volume index was significantly lower than that of the survival group. Based on volumetric study, we proposed an ROC (receiver operating characteristic) analysis to predict the prognosis of ALF patients that CTLV/SLV<83.9% indicates a poor prognosis. In conclusion, the CTLV/SLV ratio, which reflects liver volume variations, correlates well with the liver function and progression of cirrhosis and ALF. It is also a very useful marker for predicting the prognosis of ALF.
关键词： liver volume variation cirrhosis acute liver failure (ALF)
Gut microbial balance and liver transplantation: alteration, management, and prediction
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《医学前沿（英文）》 2018年 第12卷 第2期 页码 123-129 doi: 10.1007/s11684-017-0563-2
Liver transplantation is a conventional treatment for terminal stage liver diseases. However, several complications still hinder the survival rate. Intestinal barrier destruction is widely observed among patients receiving liver transplant and suffering from ischemia–reperfusion or rejection injuries because of the relationship between the intestine and the liver, both in anatomy and function. Importantly, the resulting alteration of gut microbiota aggravates graft dysfunctions during the process. This article reviews the research progress for gut microbial alterations and liver transplantation. Especially, this work also evaluates research on the management of gut microbial alteration and the prediction of possible injuries utilizing microbial alteration during liver transplantation. In addition, we propose possible directions for research on gut microbial alteration during liver transplantation and offer a hypothesis on the utilization of microbial alteration in liver transplantation. The aim is not only to predict perioperative injuries but also to function as a method of treatment or even inhibit the rejection of liver transplantation.
关键词： gut microbial balance liver transplantation ischemia–reperfusion acute rejection
Molecular mechanisms of fatty liver in obesity
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《医学前沿（英文）》 2015年 第9卷 第3期 页码 275-287 doi: 10.1007/s11684-015-0410-2
Nonalcoholic fatty liver disease (NAFLD) covers a spectrum of liver disorders ranging from simple steatosis to advanced pathologies, including nonalcoholic steatohepatitis and cirrhosis. NAFLD significantly contributes to morbidity and mortality in developed societies. Insulin resistance associated with central obesity is the major cause of hepatic steatosis, which is characterized by excessive accumulation of triglyceride-rich lipid droplets in the liver. Accumulating evidence supports that dysregulation of adipose lipolysis and liver de novo lipogenesis (DNL) plays a key role in driving hepatic steatosis. In this work, we reviewed the molecular mechanisms responsible for enhanced adipose lipolysis and increased hepatic DNL that lead to hepatic lipid accumulation in the context of obesity. Delineation of these mechanisms holds promise for developing novel avenues against NAFLD.
关键词： nonalcoholic fatty liver disease insulin resistance obesity
Overview on acute-on-chronic liver failure
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《医学前沿（英文）》 2016年 第10卷 第1期 页码 1-17 doi: 10.1007/s11684-016-0439-x
Liver failure (LF) is defined as severe dysfunction in hepatic synthesis, detoxification, and metabolism induced by various etiologies. Clinical presentation of LF typically includes severe jaundice, coagulation disorder, hepatic encephalopathy, and ascites. LF can be classified into acute LF, acute-on-chronic LF (ACLF), and chronic LF. ACLF has been demonstrated as a distinct syndrome with unique clinical presentation and outcomes. The severity, curability, and reversibility of ACLF have attracted considerable attention. Remarkable developments in ACLF-related conception, diagnostic criteria, pathogenesis, and therapy have been achieved. However, this disease, especially its diagnostic criteria, remains controversial. In this paper, we systemically reviewed the current understanding of ACLF from its definition, etiology, pathophysiology, pathology, and clinical presentation to management by thoroughly comparing important findings between east and west countries, as well as those from other regions. We also discussed the controversies, challenges, and needs for future studies to promote the standardization and optimization of the diagnosis and treatment for ACLF.
关键词： liver failure chronic liver failure acute-on-chronic liver failure diagnosis prognosis treatment
标题 作者 时间 类型 操作
Pyogenic liver abscess as initial presentation in locally advanced right colon cancer invading the liver
Kai Qu, Chang Liu, Aasef M A Mansoor, Bo Wang, Jincai Chen, Liang Yu, Yi Lv
期刊论文
Tumor growth and metastasis can be inhibited by maintaining genomic stability in cancer cells
null
期刊论文
The “Traditional Chinese medicine regulating liver regeneration” treatment plan for reducing mortalityof patients with hepatitis B-related liver failure based on real-world clinical data
Ling Dai, Xiang Gao, Zhihua Ye, Hanmin Li, Xin Yao, Dingbo Lu, Na Wu
期刊论文
TCGA whole-transcriptome sequencing data reveals significantly dysregulated genes and signaling pathways in hepatocellular carcinoma
null
期刊论文
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