Publications by authors named "Bixiang Zhang"

Lung metastasis is the most common site of extrahepatic spread in hepatocellular carcinoma (HCC) and is associated with significantly poorer outcomes. Current guidelines classify these patients as Barcelona Clinic Liver Cancer (BCLC) stage C, recommending systemic therapy alone. However, this one-size-fits-all approach may overlook potential benefits in selected patients.

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Background: Interferon (IFN)-stimulated gene 15 (ISG15) is a downstream molecule of the IFN pathways central to many cellular processes. ISG15 mainly exerts its function through a post-translational modification process known as ISGylation.

Objective: In this study, the role of ISG15 in the activation of hepatic stellate cells (HSCs) and liver fibrosis was examined.

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RNA splicing is frequently dysregulated in tumors. Aberrant RNA splicing can alter tumor metabolism, highlighting the need to elucidate the alternative splicing events that shape the metabolic landscape. In this study, we identified exon skipping in Ste20-like kinase (SLK) that results in a variant isoform (SLKv), which promotes glycolysis in tumor cells.

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Background: Cholangiocarcinoma (CCA) is a highly lethal malignant tumour with increasing incidence. Current therapies exhibit limited benefits, which urgently demand the identification of novel therapeutic targets.

Objective: We aimed to identify potential therapeutic targets for CCA and broaden current therapies.

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Background And Aims: Lenvatinib is recognized as a first-line therapy for inoperable hepatocellular carcinoma (HCC) patients. Growing evidence indicates that lenvatinib resistance can be acquired in HCC cells via kinase rewiring.

Approach And Results: We established acquired lenvatinib-resistant organoids and HCC cell lines.

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The overall response rate to immunotherapy is modest in hepatocellular carcinoma (HCC), and immunotherapy resistance mechanisms are incompletely understood. We report that the E3 ubiquitin ligase is universally silenced by promoter hypermethylation in HCC. Loss of modulates fatty acid metabolism to promote terminal exhaustion of CD8 T cells.

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Neutrophils, accounting for 50-70% of circulating leukocytes, exhibit remarkable plasticity in tumor biology. Depending on tumor type and microenvironmental cues, they can exert either anti-tumor or pro-tumor effects. During tumor initiation, neutrophils exposed to chronic inflammation secrete cytokines and oncogenic microRNAs that promote genomic instability and malignant transformation.

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Background: Although several PD-1 or PD-L1 inhibitors combined with antiangiogenic agents have been approved as first-line treatment of advanced hepatocellular carcinoma, treatment needs remain unmet given the high incidence and mortality of hepatocellular carcinoma and due to factors such as regional approval status, medical insurance restrictions, and cost considerations. In this phase 3 HEPATORCH study, we aimed to compare the efficacy and safety of toripalimab plus bevacizumab versus sorafenib in patients with previously untreated advanced hepatocellular carcinoma.

Methods: We did a randomised, open-label, phase 3 study in 57 hospitals across mainland China, Taiwan, and Singapore.

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The transmembrane and coiled-coil domains 3 (TMCO3) are highly expressed in many tumors. However, the underlying mechanisms governing the way in which TMCO3 affects the progression of hepatocellular carcinoma (HCC) remain unclear. This study screens out the molecule TMCO3 with high N6-methyladenosine (mA) modification level in tumor samples compared to the adjacent non-cancerous tissues of three pairs of HCC patients through Methylated RNA Immunoprecipitation Sequencing (MeRIP-seq) and RNA sequencing (RNA-seq).

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Background: Despite the success of immune checkpoint blockade, a lack of understanding of the hepatocellular carcinoma (HCC) immune microenvironment impedes its development.

Objective: We aim to elucidate the essential function of E-twenty-six-specific sequence variant 5 (ETV5) in regulating the immune microenvironment in HCC.

Design: Humanised mouse models, murine orthotopic models and diethylnitrosamine/carbon tetrachloride (DEN/CCl)-induced HCC models were used to examine the function of ETV5.

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Cancer stem cells (CSCs) are central to tumor progression, metastasis, immune evasion, and therapeutic resistance. Characterized by remarkable self-renewal and adaptability, CSCs can transition dynamically between stem-like and differentiated states in response to external stimuli, a process termed "CSC plasticity." This adaptability underpins their resilience to therapies, including immune checkpoint inhibitors and adoptive cell therapies (ACT).

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Background: Proliferation-associated protein 2G4 (PA2G4), also known as ErbB3-binding protein 1 (EBP1), is an evolutionarily conserved, ubiquitously expressed, multifunctional factor in health and disease. In recent decades, its role as a sophisticated regulator in a broad range of biological processes has drawn widespread attention from researchers.

Aim Of Review: We introduce the molecular structure, functional modules, and post-translational modifications of PA2G4.

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Background: Peritoneal metastasis (PM) after the rupture of hepatocellular carcinoma (HCC) is a critical issue that negatively affects patient prognosis. Machine learning models have shown great potential in predicting clinical outcomes; however, the optimal model for this specific problem remains unclear.

Methods: Clinical data were collected and analyzed from 522 patients with ruptured HCC who underwent surgery at 7 different medical centers.

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The study of the multifaceted interactions between neuroscience and cancer is an emerging field with significant implications for understanding tumor biology and the innovation in therapeutic approaches. Increasing evidence suggests that neurological functions are connected with tumorigenesis. In particular, the peripheral and central nervous systems, synapse, neurotransmitters, and neurotrophins affect tumor progression and metastasis through various regulatory approaches and the tumor immune microenvironment.

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Background & Aims: Hepatocellular carcinoma (HCC) is an aggressive malignancy for which there are few effective treatment options. H3Q5ser, a serotonin-based histone modification mediated by transglutaminase 2 (TGM2), affects diverse biological processes, such as neurodevelopment. The role of TGM2-mediated H3Q5ser in HCC progression remains unclear.

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The tumor microenvironment (TME) is involved in cancer initiation and progression. With advances in the TME field, numerous therapeutic approaches, such as antiangiogenic treatment and immune checkpoint inhibitors, have been inspired and developed. Nevertheless, the sophisticated regulatory effects on the biological balance of the TME remain unclear.

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Introduction: Laennec's capsule serves as a critical anatomical landmark in liver resection. Despite its potential, a lack of large-scale prospective studies limits the widespread use of the Laennec approach for minimally invasive hepatectomy. This multicenter cohort study aimed to compare the outcomes of the traditional and Laennec approaches in minimally invasive anatomical hepatectomy across multiple centers in China.

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Tumorigenesis involves a multifaceted and heterogeneous interplay characterized by perturbations in individual immune surveillance. Tumor-infiltrating lymphocytes, as orchestrators of adaptive immune responses, constitute the principal component of tumor immunity. Over the past decade, the functions of tumor-specific T cells have been extensively elucidated, whereas current understanding and research regarding intratumoral B cells remain inadequate and underexplored.

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RETREG1/FAM134B is known for its role as a reticulophagy receptor. Our previous study established that RETREG1 is upregulated in hepatocellular carcinoma (HCC) and contributes to disease progression by activating the AKT signaling pathway. However, the specific mechanisms underlying the elevated expression of RETREG1 in HCC remain unclear.

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The trillions of commensal microorganisms living in the gut lumen profoundly influence the physiology and pathophysiology of the liver through a unique gut-liver axis. Disruptions in the gut microbial communities, arising from environmental and genetic factors, can lead to altered microbial metabolism, impaired intestinal barrier and translocation of microbial components to the liver. These alterations collaboratively contribute to the pathogenesis of liver disease, and their continuous impact throughout the disease course plays a critical role in hepatocarcinogenesis.

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Article Synopsis
  • Liver metastases often occur in advanced cancer stages, posing a major clinical challenge due to their complex interactions with immune cells in the liver.
  • These immune cells contribute to the growth of metastases by interacting with tumor cells and liver components, creating supportive environments for the tumors.
  • Despite current treatments being largely ineffective, researchers are actively investigating new immune-based therapies tailored for patients with liver metastases.
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Advanced metastasis of hepatocellular carcinoma (HCC) significantly contributes to high death rates among patients. The efficiency of targeted therapies and chemotherapeutic agents shows individual variability. Therefore, there is no effective treatment for advanced HCC.

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Liver fibrosis is characterized by excessive extracellular matrix (ECM) deposition triggered by hepatic stellate cells (HSCs). As central players in fibrosis progression, HSCs are the most important therapeutic targets for antifibrotic therapy. However, owing to the limitations of systemic drug administration, there is still no suitable and effective clinical treatment.

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Article Synopsis
  • Liver fibrosis is a serious condition that can progress to liver cancer and failure, and early detection and treatment remain difficult.
  • The process involves liver inflammation and the activation of hepatic stellate cells, which are influenced by communication between various immune cells and the release of extracellular vesicles (EVs).
  • EVs play a key role in the inflammatory response and offer promising diagnostic and therapeutic options for liver fibrosis due to their stability, compatibility, and low toxicity.
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