Publications by authors named "Yuanfeng Gong"

Background: Fluorine 18 (F) fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) has limitations in staging hepatocellular carcinoma (HCC). The recently introduced F-labeled fibroblast-activation protein inhibitor (FAPI) has shown promising prospects in detection of HCC lesions. This study aimed to investigate the initial staging and restaging performance of F-FAPI PET/CT compared to F-FDG PET/CT in HCC.

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Hepatocellular carcinoma (HCC) is a highly prevalent and lethal tumor worldwide and its late discovery and lack of effective specific therapeutic agents necessitate further research into its pathogenesis and treatment. Organoids, a novel model that closely resembles native tumor tissue and can be cultured in vitro, have garnered significant interest in recent years, with numerous reports on the development of organoid models for liver cancer. In this study, we have successfully optimized the procedure and established a culture protocol that enables the formation of larger-sized HCC organoids with stable passaging and culture conditions.

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Antibody-based cancer therapeutics is developing rapidly in recent years for its advantages in precisely targeting the tumor cells. However, tumor-specific cell surface antigens are still lacking, and the heterogeneity of tumor mass greatly impeded the development of effective drugs. In the present study, single-cell RNA sequencing was used to dissect tumor heterogeneity in human hepatocellular carcinoma (HCC).

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Article Synopsis
  • - Lenvatinib is used as a first-line treatment for advanced hepatocellular carcinoma (HCC), but drug resistance limits its effectiveness, with the mechanisms behind this resistance not fully understood.
  • - Researchers used CRISPR/Cas9 screening and other assays to identify six key genes related to Lenvatinib resistance, particularly focusing on DUSP4, which is linked to increased cancer cell survival and proliferation during treatment.
  • - DUSP4 deficiency enhances drug resistance through activation of the MAPK/ERK signaling pathway, and combining Lenvatinib with MEK inhibitors shows potential to improve treatment outcomes for patients with HCC.
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Pancreatic ductal adenocarcinoma (PDAC) has a hypoxic and desmoplastic tumor microenvironment (TME), leading to treatment failure. We aimed to develop a prognostic classifier to evaluate hypoxia status and hypoxia-related molecular characteristics of PDAC. In this study, we classified PDAC into three clusters based on 16 known hypoxia-inducible factor 1 (HIF-1)-related genes.

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Article Synopsis
  • Tumour lineage plasticity is becoming a critical factor in how aggressive tumours evade treatment by utilizing developmental pathways for adaptability.
  • The protein GDF1 is linked to poorer tumour differentiation, and its overexpression leads to increased metastasis while inhibiting cell growth.
  • GDF1 promotes the dedifferentiation of hepatocellular carcinoma cells and enhances their immunogenicity through specific signaling pathways, suggesting that targeting GDF1 and its related mechanisms could improve the effectiveness of immunotherapies.
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Background: KRAS was reported to affect some metabolic genes and promote metabolic reprogramming in solid tumors. However, there was no comprehensive analysis to explore KRAS-associated metabolic signature or risk model for pancreatic cancer (PC).

Methods: In the current study, multiple bioinformatics analyses were used to identify differentially expressed metabolic genes based on KRAS mutation status in PC.

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Hepatic impairment in coronavirus disease 2019 (COVID-19) may derive from cholangiocyte damage in the beginning, but not from direct infection of hepatocytes. Chronic liver disease patients co-infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibited overexpression of angiotensin-converting enzyme 2 receptors and overwhelming cytokine storm. Consensus has been reached that we should encourage as many people as possible to be vaccinated in order to achieve herd immunity.

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Recent evidence has shown that CKLF-like MARVEL transmembrane domain containing 3 (CMTM3) promoted carcinogenesis and tumor progression in a variety of cancer types. The goal of our study is to investigate the association between CMTM3 and pancreatic cancer (PC). In current study, data from public databases was used to analyze CMTM3 expression in PC.

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Background: Gallbladder cancer (GBC), which accounts for more than 80% of biliary tract malignancies, has a poor prognosis with an overall 5-year survival less than 10%. The study aimed to identify risk factors and develop a predictive model for GBC following surgical resection.

Methods: 98 GBC patients who underwent surgical resection from Guangdong Provincial People's Hospital were enrolled in the study.

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Background: Hyperthermic intraperitoneal chemotherapy (HIPEC) has been reported to effectively control peritoneal carcinomatosis (PC) in various patient populations, but there is a lack of real-world data. This study aimed to examine the safety and effectiveness of HIPEC in patients with PC in a real-world setting.

Methods: This was a retrospective study of patients with PC treated with the high-precision BR-TRG-I type HIPEC device between December 2006 and December 2016.

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LncRNAs play an important role in a variety of biological processes, such as cancer pathogenesis. The lncRNA zinc ribbon domain containing 1 antisense RNA 1 (ZNRD1-AS1) is a natural antisense transcript of ZNRD1. In this study, we found that ZNRD1-AS1 levels were significantly upregulated in gastric cancer tissues compared to those in adjacent healthy gastric tissues.

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Background: The prognosis of patients with pancreatic ductal adenocarcinoma (PDAC) of pancreatic head remains poor, even after potentially curative R0 resection. The aim of this study was to develop an accurate model to predict patients' prognosis for PDAC of pancreatic head following pancreaticoduodenectomy.

Methods: We retrospectively reviewed 112 patients with PDAC of pancreatic head after pancreaticoduodenectomy in Guangdong Provincial People's Hospital between 2014 and 2018.

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Family with sequence similarity 83 (FAM83) members were shown recently to have oncogenic effect in a variety of cancer types, but the biological roles and prognostic value of FAM83 family in pancreatic ductal adenocarcinoma remain unknown. In the current study, the clinical significance and molecular function of the FAM83 family were assessed by multiple bioinformatics analysis. Besides, potential associations between differentially expressed genes (DEGs) of FAM83 family and antitumor immunity were evaluated using TIMER and TISIDB analyses.

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Article Synopsis
  • Tumor lineage plasticity is a key factor that enables cancer cells to resist therapy and recur after treatment, particularly in hepatocellular carcinoma (HCC).
  • Claudin6 (CLDN6) is identified as a promising therapeutic target since its expression is linked to both the embryonic stage and its reactivation in HCC, influencing tumor behavior and drug resistance.
  • A novel treatment involving an anti-CLDN6 monoclonal antibody conjugated with a cytotoxic agent has shown strong effectiveness in preclinical studies, either alone or combined with the drug sorafenib for HCC treatment.
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Beta-1,3--acetylglucosaminyltransferase 3 () has been associated with tumor progression in several solid tumors, and inhibits CD8 T cell-mediated anti-tumor immunity in breast cancer. However, little is known about the potential functions of in immunosuppression in pancreatic cancer (PC). This study on aims to provide novel insights into the mechanisms of immune suppression or evasion in PC.

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Solitary large hepatocellular carcinoma (SLHCC) is a specific subtype of HCC with unique characteristics. It is of great interest to assess and stratify the prognosis of SLHCCs after curative resection. In this study, we tried to construct a prognostic nomogram for SLHCC following curative resection through a retrospective analysis of 202 SLHCC cases.

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Introduction: The efficacy of different timings of cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) in controlling malignant ascites caused by peritoneal carcinomatosis of colorectal cancer (CRC) is not well defined. The study aims to investigate the clinical efficacy and safety of different timings of CRS with HIPEC for malignant ascites caused by peritoneal carcinomatosis from CRC.

Materials And Methods: This was a preliminary randomized controlled study performed at the Intracelom Hyperthermic Perfusion Therapy Center of the Cancer Hospital of Guangzhou Medical University (China) from December 2008 to December 2016.

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Pancreatic neuroendocrine tumors (pNETs) are a heterogeneous group of tumors with complicated treatment options that depend on pathological grading, clinical staging, and presence of symptoms related to hormonal secretion. With regard to diagnosis, remarkable advances have been made: Chromogranin A is recommended as a general marker for pNETs. But other new biomarker modalities, like circulating tumor cells, multiple transcript analysis, microRNA profile, and cytokines, should be clarified in future investigations before clinical application.

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Background: Loss of terminal differentiation markers and gain of stem cell-like properties are a major hallmark of cancer malignant progression. Identification of novel biomarkers representing tumor developmental progeny and predictive of patients' prognosis would greatly benefit clinical cancer management.

Methods: Human embryonic stem cells were induced to differentiate into hepatocytes along hepatic lineages.

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Clinical observation of the association between cancer aggressiveness and embryonic development stage implies the importance of developmental signals in cancer initiation and therapeutic resistance. However, the dynamic gene expression during organogenesis and the master oncofetal drivers are still unclear, which impeded the efficient elimination of poor prognostic tumors, including human hepatocellular carcinoma (HCC). In this study, human embryonic stem cells were induced to differentiate into adult hepatocytes along hepatic lineages to mimic liver development in vitro.

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Background: To compare the efficacy of 3 chemotherapeutic combinations for laparoscopic hyperthermic intraperitoneal perfusion chemotherapy (HIPPC) in the treatment of malignant ascites secondary to unresectable gastric cancer (GC).

Materials And Methods: From January 2010 to December 2013, 38 GC patients were randomly divided into 3 groups and treated by laparoscopic HIPPC with 1 of the 3 following chemotherapy combinations: raltitrexed (Ra) with oxaliplatin (L-OHP), Ra with cisplatin (DDP), and Ra with mitomycin C (MMC). Perioperative complications, patients' quality of life, and survival were recorded and compared among the 3 groups.

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Gastric cancer (GC) is a highly prevalent type of metastatic tumor. The mechanisms underlying GC metastasis are poorly understood. Some long noncoding RNAs (lncRNAs) reportedly play key roles in regulating metastasis of GC.

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Background: Bladder hyperthermic intracavitary chemotherapy (HIVEC) has good effectiveness for bladder cancer, but conventional HIVEC systems lack precision and convenient application. To test the safety of a new HIVEC device (BR-TRG-II-type) in pigs and to perform a preliminary clinical trial in patients with bladder cancer.

Methods: This device was tested on six pigs to optimize the temperature and time parameters.

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Aim: this study was performed to investigate the association between selenium concentrations, dietary intake, and the risk of hepatocellular carcinoma (HCC). Methods: we identified eligible studies in PubMed and EMBASE databases, in addition to the reference lists of original studies and review articles on this topic, up to 1 Feb 2019. A summary of standardized mean differences (SMD) with 95% confidence intervals (CI) was calculated using a random-effects model.

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