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Original Article Open Access
Gene Expression Analysis Reveals Clinically Significant Genes Associated with Familial Hypercholesterolemia and Atherosclerosis
Kumaran Kasianthan, Janardanan Subramonia Kumar, Kandasamy Nagarajan ArulJothi
Published online May 15, 2024
Gene Expression. doi:10.14218/GE.2023.00184
Abstract
Familial hypercholesterolemia (FH) is characterized by an elevated level (>155 mg/dL) of LDL (low-density lipoprotein)-Cholesterol in the blood circulation and is one of the [...] Read more.

Familial hypercholesterolemia (FH) is characterized by an elevated level (>155 mg/dL) of LDL (low-density lipoprotein)-Cholesterol in the blood circulation and is one of the major causes of premature atherosclerotic cardiovascular diseases. The significant genes responsible for this lipid deposition are LDL-Receptor (LDLR), Apolipoprotein B-100 (APOB), and proprotein convertase subtilisin/kexin type 9 genes (PCSK9). Other than these 3 genes, 64 gene loci have been identified as polygenic causes. The aim of the study was to analyze the other genes involved in this condition.

In this study, three datasets representing the markers of monocyte, T lymphocyte, and induced pluripotent stem cells (iPSCs) in atherosclerosis and FH were selected from the pool of hypercholesterolemia datasets, and differential expression analysis was done using networkanalyst.ca.

The monocyte and t-lymphocytes datasets each had 743 differentially expressed genes (DEGs), while the iPSCs dataset contained 691 DEGs. RPS7, AKRIC3, PL9, and OSM were among the genes that were expressed in the majority of Gene ontology annotations.

According to the findings, genes with varied levels of expression are associated with a variety of functions, including membrane transport, ubiquitin-protein ligase activity, the COP9 signalosome complex, the mitochondrial respiratory chain, and copper metabolism. Analyzing these critical genes lays the groundwork for investigating potential therapeutic targets that could alleviate the impact of cardiovascular disease in individuals diagnosed with FH.

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Review Article Open Access
N6-methyladenosine (m6A) RNA Modification’s Regulatory Role in Acute and Chronic Leukemia
Ziba Majidi, Pariya Mohammadyari, Zahra Kashani Khatib, Shaban Alizadeh
Published online August 2, 2024
Gene Expression. doi:10.14218/GE.2024.00030
Abstract
Hematological malignancies present a complex challenge within oncology, necessitating a thorough understanding of genetic factors for effective detection and management. As we delved [...] Read more.

Hematological malignancies present a complex challenge within oncology, necessitating a thorough understanding of genetic factors for effective detection and management. As we delved into the forefront of cancer research, our focus turned to the emerging field of N6-methyladenosine (m6A) epigenetic approaches. Among RNA modifications, m6A is the most common and thoroughly investigated post-transcriptional alteration in messenger RNA. The m6A modification involves the addition of a methyl group to the adenosine at the N6 position within RNA molecules, a process mediated by proteins collectively referred to as m6A writers, erasers, and readers. The dynamic nature of m6A modifications on RNA molecules presents a promising avenue for enhancing our understanding of gene expression regulation in hematological malignancies. This review explores the potential breakthroughs that m6A epigenetic tools offer in cancer diagnostics and treatment, highlighting their role in enabling more precise interventions. By acknowledging the importance of genetic insights and integrating advancements in m6A epigenetics, this article advocates for a comprehensive approach to managing hematological malignancies.

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Original Article Open Access
Evaluation of Plasma Neurodegenerative Biomarkers for Diagnosing Minimal Hepatic Encephalopathy and Predicting Overt Hepatic Encephalopathy in Chinese Patients with Hepatic Cirrhosis
Qiuyu Cheng, Yunhui Liu, Zhongyuan Yang, Meng Zhang, Tingting Liu, Yuxin Niu, Wei Liu, Lanyue Huang, Yuzhao Feng, Xiaoyun Zhang, Xiaoping Luo, Qin Ning, Tao Chen
Published online December 12, 2024
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00413
Abstract
The performance of neurodegenerative biomarkers—neurofilament light chain (NfL), glial fibrillary acidic protein (GFAP), tau, and ubiquitin carboxy-terminal hydrolase L1 (UCHL1)—in [...] Read more.

The performance of neurodegenerative biomarkers—neurofilament light chain (NfL), glial fibrillary acidic protein (GFAP), tau, and ubiquitin carboxy-terminal hydrolase L1 (UCHL1)—in diagnosing minimal hepatic encephalopathy (MHE) has not been systematically evaluated, simultaneously, nor have their associations with the development of overt hepatic encephalopathy (OHE). This study aimed to evaluate the performance of plasma NfL, GFAP, tau, and UCHL1 in diagnosing MHE and predicting the development of OHE in Chinese patients with hepatic cirrhosis.

In this prospective study, 124 patients with hepatic cirrhosis were recruited. The Psychometric Hepatic Encephalopathy Score was used to diagnose MHE, and OHE development was observed during a 30-day follow-up period. Plasma levels of NfL, GFAP, tau, and UCHL1 were measured using the highly sensitive single-molecule array when MHE was diagnosed. Additionally, serum interleukin-6 (IL-6) levels and the model for end-stage liver disease (MELD) and MELD-Na scores were also measured.

MHE was diagnosed in 57 (46.0%) patients. Patients with MHE had significantly higher plasma levels of NfL and GFAP (34.2 vs. 22.4 pg/mL and 173 vs. 97.6 pg/mL, respectively; both p < 0.001) and lower tau levels (8.4 vs. 11.6 pg/mL, p = 0.048) compared to those without MHE. Plasma NfL (odds ratios = 1.027, 95% confidence interval [CI]: 1.006–1.048; p = 0.013) and serum ammonia levels (odds ratios = 1.021, 95% CI: 1.006–1.036; p = 0.007) were independently associated with MHE occurrence. A combination of NfL, GFAP, tau, and UCHL1 was effective in diagnosing MHE in all cirrhotic patients (area under the receiver operating characteristic curve [hereinafter referred to as AUROC]: 0.748, 95% CI: 0.662–0.821), with an accuracy, sensitivity, and specificity of 71.0%, 71.9%, and 71.6%, respectively. In patients without previous OHE, the combination had an AUROC of 0.764 (95% CI: 0.673–0.840), with an accuracy, sensitivity, and specificity of 72.5%, 71.7%, and 73.0%, respectively. Furthermore, GFAP (hazard ratio (HR) = 1.003, 95% CI: 1.000–1.005; p = 0.044), IL-6 (HR = 1.003, 95% CI: 1.001–1.004; p < 0.001), and MELD score (HR = 1.139, 95% CI: 1.072–1.210; p < 0.001)—but not NfL, tau, and UCHL1—were identified as risk factors for 30-day OHE development.

The combination of plasma levels of NfL, GFAP, tau, and UCHL1 performs well in diagnosing MHE. Additionally, MELD score, IL-6, and GFAP appear to be significant predictors of OHE development in patients with hepatic cirrhosis.

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Original Article Open Access
Oncolytic Virus Senecavirus A Inhibits Hepatocellular Carcinoma Proliferation and Growth by Inducing Cell Cycle Arrest and Apoptosis
Tao Gong, Xiao Liu, Qingyuan Li, Donald R. Branch, Melika Loriamini, Wenxian Wen, Yaoqiang Shi, Qi Tan, Bin Fan, Zhonghui Zhou, Yujia Li, Chunhui Yang, Shilin Li, Xiaoqiong Duan, Limin Chen
Published online June 20, 2024
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00125
Abstract
Hepatocellular carcinoma (HCC) is a highly aggressive tumor with limited treatment options and high mortality. Senecavirus A (SVA) has shown potential in selectively targeting tumors [...] Read more.

Hepatocellular carcinoma (HCC) is a highly aggressive tumor with limited treatment options and high mortality. Senecavirus A (SVA) has shown potential in selectively targeting tumors while sparing healthy tissues. This study aimed to investigate the effects of SVA on HCC cells in vitro and in vivo and to elucidate its mechanisms of action.

The cell counting kit-8 assay and colony formation assay were conducted to examine cell proliferation. Flow cytometry and nuclear staining were employed to analyze cell cycle distribution and apoptosis occurrence. A subcutaneous tumor xenograft HCC mouse model was created in vivo using HepG2 cells, and Ki67 expression in the tumor tissues was assessed. The terminal deoxynucleotidyl transferase dUTP nick end labeling assay and hematoxylin and eosin staining were employed to evaluate HCC apoptosis and the toxicity of SVA on mouse organs.

In vitro, SVA effectively suppressed the growth of tumor cells by inducing apoptosis and cell cycle arrest. However, it did not have a notable effect on normal hepatocytes (MIHA cells). In an in vivo setting, SVA effectively suppressed the growth of HCC in a mouse model. SVA treatment resulted in a significant decrease in Ki67 expression and an increase in apoptosis of tumor cells. No notable histopathological alterations were observed in the organs of mice during SVA administration.

SVA inhibits the growth of HCC cells by inducing cell cycle arrest and apoptosis. It does not cause any noticeable toxicity to vital organs.

Full article
Review Article Open Access
Exploring Circulating Tumor Cells: Detection Methods and Biomarkers for Clinical Evaluation in Hepatocellular Carcinoma
Chin-Mu Hsu, Yi-Chang Liu, Jee-Fu Huang
Published online October 17, 2024
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00230
Abstract
Circulating tumor cells (CTCs), originating from primary neoplastic tissues, infiltrate blood vessels, migrate through the bloodstream, and establish secondary tumor foci. The detection [...] Read more.

Circulating tumor cells (CTCs), originating from primary neoplastic tissues, infiltrate blood vessels, migrate through the bloodstream, and establish secondary tumor foci. The detection of CTCs holds significant promise for early-stage identification, diagnostic precision, therapeutic monitoring, and prognostic evaluation. It offers a non-invasive approach and has broad clinical relevance in cancer management. This comprehensive review primarily focused on CTCs as biomarkers in the diagnostic, therapeutic, and prognostic surveillance of hepatocellular carcinoma, compared their correlation with key clinical parameters and the identification of gene characteristics. It also highlighted current methodologies in CTC detection. Despite approval by the U.S. Food and Drug Administration for select malignancies, the comprehensive integration of CTCs into routine clinical practice requires procedural standardization and a deeper understanding of the underlying molecular intricacies. The challenges in CTC detection, including limited quantity, technical impediments, and cellular heterogeneity, call for concerted and further investigational efforts to advance precision in cancer diagnostics and prognostication, thus realizing the objectives of precise and personalized medicine.

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Review Article Open Access
Use of Biomarkers in the Management of Inflammatory Bowel Disease
Megan Lewis, Christopher M. Johnson
Published online June 18, 2024
Journal of Translational Gastroenterology. doi:10.14218/JTG.2023.00086
Abstract
Inflammatory bowel diseases (IBD), which include Crohn’s disease and ulcerative colitis, are chronic inflammatory disorders of the GI tract. The etiology is unclear, and most clinical [...] Read more.

Inflammatory bowel diseases (IBD), which include Crohn’s disease and ulcerative colitis, are chronic inflammatory disorders of the GI tract. The etiology is unclear, and most clinical symptoms are nonspecific, making the diagnosis and prognosis of IBD challenging as there is no gold-standard diagnostic test. Both endoscopy and imaging are essential diagnostic tools for determining disease state, location, and severity. However, the high cost and invasive nature of these tests make them unrealistic for frequent assessment. Given these limitations, laboratory testing of blood and feces has proven to be a viable alternative for routine disease monitoring. To integrate more efficient and personalized treatment strategies, new studies are consistently emerging to develop minimally invasive testing that can predict disease severity and response to available treatments. The goal is to develop better predictors of disease course, response to therapy, and therapy-related adverse events, thereby establishing a more efficient and personalized treatment strategy. This review aimed to delve into existing literature to assemble a collection of currently used biomarkers that aid in monitoring treatment response, as well as highlight select novel and combined biomarkers that hold promise for future management of IBD.

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Original Article Open Access
Gut Microbiota and Cytokine Profile in Cirrhosis
Irina Efremova, Roman Maslennikov, Anna Kudryavtseva, Anastasia Avdeeva, George Krasnov, Mikhail Diatroptov, Vyacheslav Bakhitov, Salekh Aliev, Natalia Sedova, Maria Fedorova, Elena Poluektova, Oxana Zolnikova, Nariman Aliev, Anna Levshina, Vladimir Ivashkin
Published online June 28, 2024
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00090
Abstract
Gut dysbiosis and abnormal cytokine profiles are common in cirrhosis. This study aimed to evaluate the correlations between them. In the blood plasma of cirrhosis patients [...] Read more.

Gut dysbiosis and abnormal cytokine profiles are common in cirrhosis. This study aimed to evaluate the correlations between them.

In the blood plasma of cirrhosis patients and controls, 27 cytokines were examined using a multiplex assay. The plasma levels of nitrites (stable metabolites of the endothelial dysfunction biomarker nitric oxide) and lipopolysaccharide (LPS) were examined. The fecal microbiota was assessed by 16S rRNA gene sequencing.

Levels of IL-1b, IL-2, IL-6, IL-13, IP-10, IFN-g, TNF-a, LPS, and nitrites were higher in cirrhosis patients than in controls, while levels of IL-4, IL-7, and PDGF-BB were lower. The LPS level was directly correlated with the levels of IL-1b, IL1-Ra, IL-9, IL-17, PDGF-BB, IL-6, TNF-a, and nitrites. The nitrite level was significantly directly correlated with the levels of TNF-a, GM-CSF, IL-17, and IL-12, and inversely correlated with the IL-7 level. TNF-a levels were directly correlated with ascites severity and the abundance of Negativicutes, Enterobacteriaceae, Veillonellaceae, and Klebsiella, while inversely correlated with the abundance of Firmicutes, Clostridia, and Subdoligranulum. IFN-g levels were directly correlated with the abundance of Bacteroidaceae, Lactobacillaceae, Bacteroides, and Megasphaera, and inversely correlated with the abundance of Verrucomicrobiota, Akkermansiaceae, Coriobacteriaceae, Akkermansia, Collinsella, and Gemella. IL-1b levels were directly correlated with the abundance of Comamonadaceae and Enterobacteriaceae and inversely correlated with the abundance of Marinifilaceae and Dialister. IL-6 levels were directly correlated with the abundance of Enterobacteriaceae, hepatic encephalopathy, and ascites severity, and inversely correlated with the abundance of Peptostreptococcaceae, Streptococcaceae, and Streptococcus.

The abundance of harmful gut microbiota taxa and endotoxinemia directly correlates with the levels of proinflammatory cytokines.

Full article
Review Article Open Access
Exploring the Systematic Anticancer Mechanism in Selected Medicinal Plants: A Review
Maruthamuthu Vijayalakshmi, Shanmugam Meganathan, Suresh Kumar Surendhar, Appavoo Umamaheswari, Sakthivel Lakshmana Prabu
Published online September 25, 2024
Oncology Advances. doi:10.14218/OnA.2024.00012
Abstract
Cancer is thought to be the second most prevalent and leading cause of mortality worldwide, affecting both men and women among other chronic diseases. While there are several treatment [...] Read more.

Cancer is thought to be the second most prevalent and leading cause of mortality worldwide, affecting both men and women among other chronic diseases. While there are several treatment options available, significant strains, side effects, and resistance have led researchers to focus on finding novel alternative medications for cancer treatment. Antioxidants and the immunomodulatory activities of medicinal plants are studied and considered to have anti-cancer effects. Medicinal plants contain diverse phytoconstituents as natural drugs, which possess numerous medicinal properties used for treating and preventing various illnesses. These phytoconstituents work through several mechanisms to target and kill cancer cells. Anticancer mechanisms include suppression and arrest of the G0/G1 phase, acting as anti-mitotic and anti-microtubule agents, enhancing the activity of macrophages, inhibiting cancer cells through various signaling cascades, anti-angiogenesis, and cytotoxicity. Investigating botanical sources and their metabolites can uncover new chemical entities for cancer treatment at the molecular target level and provide future interventions in cancer therapy. This article summarizes a few medicinal plants and their mechanisms of action for their anticancer potential. Furthermore, we discuss the future prospects and limitations of using medicinal plants in cancer treatment.

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Original Article Open Access
STING-mediated IL-6 Inhibits OATP1B1 Expression via the TCF4 Signaling Pathway in Cholestasis
Yan Guo, Hongjia Zhang, Nan Zhao, Ying Peng, Dongya Shen, Yubin Chen, Xiaoxun Zhang, Can-E Tang, Jin Chai
Published online July 15, 2024
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00017
Abstract
Organic anion-transporting polypeptides (OATPs) play a crucial role in the transport of bile acids and bilirubin. In our previous study, interleukin 6 (IL-6) reduced OATP1B3 levels [...] Read more.

Organic anion-transporting polypeptides (OATPs) play a crucial role in the transport of bile acids and bilirubin. In our previous study, interleukin 6 (IL-6) reduced OATP1B3 levels in cholestatic disease. However, it remains unclear whether IL-6 inhibits OATP1B1 expression in cholestatic diseases. This study aimed to investigate whether IL-6 can inhibit OATP1B1 expression and explore the underlying mechanisms.

The effect of stimulator of interferon genes (STING) signaling on inflammatory factors was investigated in a cholestatic mouse model using RT-qPCR and enzyme-linked immunosorbent assay. To assess the impact of inflammatory factors on OATP1B1 expression in hepatocellular carcinoma, we analyzed OATP1B1 expression by RT-qPCR and Western Blot after treating PLC/PRF/5 cells with TNF-α, IL-1β, and IL-6. To elucidate the mechanism by which IL-6 inhibits OATP1B1 expression, we examined the expression of the OATP1B1 regulator TCF4 in PLC/PRF/5 and HepG2 cells using RT-qPCR and Western Blot. The interaction mechanism between β-catenin/TCF4 and OATP1B1 was investigated by knocking down β-catenin/TCF4 through siRNA transfection.

The STING inhibitor decreased inflammatory factor levels in the cholestatic mouse model, with IL-6 exhibiting the most potent inhibitory effect on OATP1B1. IL-6 downregulated β-catenin/TCF4, leading to decreased OATP1B1 expression. Knocking-down β-catenin/TCF4 counteracted the β-catenin/TCF4-mediated repression of OATP1B1.

STING-mediated IL-6 up-regulation may inhibit OATP1B1, leading to reduced transport of bile acids and bilirubin by OATP1B1. This may contribute to altered pharmacokinetics in patients with diseases associated with increased IL-6 production.

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Review Article Open Access
The Role of Solute Carrier Family Transporters in Hepatic Steatosis and Hepatic Fibrosis
Chi Zhang, Xuanran Yang, Yi Xue, Huan Li, Chuanfei Zeng, Mingkai Chen
Published online January 22, 2025
Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00348
Abstract
Solute carrier (SLC) family transporters are crucial transmembrane proteins responsible for transporting various molecules, including amino acids, electrolytes, fatty acids, and [...] Read more.

Solute carrier (SLC) family transporters are crucial transmembrane proteins responsible for transporting various molecules, including amino acids, electrolytes, fatty acids, and nucleotides. To date, more than fifty SLC transporter subfamilies have been identified, many of which are linked to the progression of hepatic steatosis and fibrosis. These conditions are often caused by factors such as non-alcoholic fatty liver disease and non-alcoholic steatohepatitis, which are major contributors to the global liver disease burden. The activity of SLC members regulates the transport of substrates across biological membranes, playing key roles in lipid synthesis and metabolism, mitochondrial function, and ferroptosis. These processes, in turn, influence the function of hepatocytes, hepatic stellate cells, and macrophages, thereby contributing to the development of hepatic steatosis and fibrosis. Additionally, some SLC transporters are involved in drug transport, acting as critical regulators of drug-induced hepatic steatosis. Beyond substrate transport, certain SLC members also exhibit additional functions. Given the pivotal role of the SLC family in hepatic steatosis and fibrosis, this review aimed to summarize the molecular mechanisms through which SLC transporters influence these conditions.

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