Piperlongumine inhibits glioblastoma proliferation by inducing ferroptosis.

Objectives: This study aimed to investigate the effects of Piperlongumine on Glioblastoma multiforme.

Methods: The effects of Piperlongumine on the viability and proliferation of glioma cells LN229 and A172 were measured. Changes in mitochondrial structure were observed.

Efficacy and safety of paclitaxel liposome versus paclitaxel in combination with carboplatin in the first-line chemotherapy for ovarian cancer: a multicenter, open-label, non-inferiority, randomized controlled trial.

Background: The paclitaxel liposome formulation, encapsulating paclitaxel within a phospholipid bilayer, addresses the insolubility of traditional paclitaxel formulations, thereby reducing toxicity without compromising its antitumor efficacy.

Methods: This multicenter, open-label, non-inferiority randomized controlled trial (ChiCTR2000038555) evaluates the efficacy and safety of paclitaxel liposome in comparison to the standard regimen of paclitaxel combined with carboplatin (PLC vs. PC) as first-line therapy in patients with epithelial ovarian cancer.

Andrographolide causes p53-independent HCC cell death through p62 accumulation and impaired DNA damage repair.

Background: Hepatocellular carcinoma (HCC) is a highly lethal cancer characterized by dominant driver mutations, including p53. Consequently, there is an urgent need to search for novel therapeutic agents to treat HCC. Andrographolide (Andro), a clinically available anti-inflammatory phytochemical agent, has shown inhibitory effects against various types of cancer, including HCC.

Effect of Lentivirus-Mediated miR-499a-3p on Human Umbilical Vein Endothelial Cells.

Objective: To explore the possible role of miR-499a-3p in the function of primary human umbilical vein endothelial cells (HUVECs) and the expression of ADAM10 in primary HUVEC.

Method: miR-499a-3p was first transfected into primary HUVECs via lentivirus vector. The viability, proliferation, and migration of stable transfected primary HUVEC were then determined by flow cytometry, CCK8 assays, scratch tests, and Transwell tests.

Expression of P62 in hepatocellular carcinoma involving hepatitis B virus infection and aflatoxin B1 exposure.

This study aims to clarify the relationship and mechanism between expression of autophagy-related protein P62 and prognosis of patients with hepatocellular carcinoma (HCC) involving chronic hepatitis B virus (HBV) infection and aflatoxin B1 (AFB1) exposure. HCC patients who underwent resection were divided into three groups: HBV(+)/AFB1(+) (n = 26), HBV(+)/AFB1(-) (n = 68), and HBV(-)/AFB1(-) (n = 14). The groups were compared in terms of mRNA and protein levels of P62, disease-free survival (DFS), and overall survival (OS) and the expression of NRF2, Nqo1, and AKR7A3 in P62 high-expression and low-expression group.

Downregulation of Macrophage-Derived T-UCR uc.306 Associates with Poor Prognosis in Hepatocellular Carcinoma.

Background/aims: Increasing evidence suggests that T-UCRs are involved in the development of cancer. In this study, we evaluated the role of a macrophage-derived T-UCR, uc.306, in the prognosis of hepatitis B (HBV)-related hepatocellular carcinoma (HCC).

High expression of AKR1B10 predicts low risk of early tumor recurrence in patients with hepatitis B virus-related hepatocellular carcinoma.

To clarify the relationship between aldo-keto reductase family 1 member B10 (AKR1B10) expression and early hepatocellular carcinoma (HCC) recurrence, this study detected AKR1B10 expression in tumor and adjacent non-tumor tissues from 110 patients with hepatitis B virus (HBV)-related HCC underwent liver resection and analyzed its correlations with clinicopathological characteristics and prognosis of these patients. Detected by quantitative reverse transcription polymerase chain reaction, AKR1B10 mRNA expression showed significantly higher in HCC tissues than in adjacent non-tumor tissues, with a low level in normal liver tissues. Similar results was confirmed at the protein level using immunohistochemistry and Western blotting.

Mitigation of Fumonisin Biomarkers by Green Tea Polyphenols in a High-Risk Population of Hepatocellular Carcinoma.

Green tea polyphenols (GTP) are highly effective in inhibiting a variety of tumorigenic effects induced by carcinogens. In this study we assessed GTP mitigation on biomarkers of fumonisin B1 (FB1), a class 2B carcinogen, in blood and urine samples collected from an intervention trial. A total of 124 exposed people were recruited and randomly assigned to low-dose (GTP 500 mg, n = 42), high-dose (GTP 1,000 mg, n = 41) or placebo (n = 41) for 3 months.

Anisotropic patterns of liver cancer prevalence in Guangxi in Southwest China: is local climate a contributing factor?

Geographic information system (GIS) technology has useful applications for epidemiology, enabling the detection of spatial patterns of disease dispersion and locating geographic areas at increased risk. In this study, we applied GIS technology to characterize the spatial pattern of mortality due to liver cancer in the autonomous region of Guangxi Zhuang in southwest China. A database with liver cancer mortality data for 1971-1973, 1990-1992, and 2004-2005, including geographic locations and climate conditions, was constructed, and the appropriate associations were investigated.

Chronic hepatitis B virus infection and occurrence of hepatocellular carcinoma in tree shrews (Tupaia belangeri chinensis).

Background: Hepatitis B virus (HBV) infection has been believed as a major cause of hepatocellular carcinoma (HCC) for a long time, however, the evidences of which are mostly from clinical and epidemiological investigations while there is no evidence from animal experiments. Tree shrew (Tupaia) is a small animal closely related to primates evolutionarily, with about 8 years of lifespan. Our previous study proved that tree shrews can be chronically HBV-infected after being inoculated neonatally with HBV.

Mortality of major cancers in Guangxi, China: sex, age and geographical differences from 1971 and 2005.

The incidence and mortality rates of liver and nasopharyngeal cancer in Guangxi province of China have always been among the highest in the world, and cancer is one of the major diseases that pose a threat to the health of residents in Guangxi. However, no systematic study has been performed to evaluate the time trends in the structure of cancer-related deaths and cancer mortality. In this study, we reveal sex, age and geography differences of cancers mortality between three death surveys (1971 to 1973, 1990 to 1992, and 2004 to 2005).

Hypermethylation leads to bone morphogenetic protein 6 downregulation in hepatocellular carcinoma.

Background: In the liver, bone morphogenetic protein 6 (BMP-6) maintains balanced iron metabolism. However, the mechanism that underlies greater BMP-6 expression in hepatocellular carcinoma (HCC) tissue than adjacent non-cancerous tissue is unclear. This study sought to investigate the epigenetic mechanisms of BMP-6 expression by analysing the relationship between the DNA methylation status of BMP-6 and the expression of BMP-6.

Histopathological changes in the liver of tree shrew (Tupaia belangeri chinensis) persistently infected with hepatitis B virus.

Background: An animal model for HBV that more closely approximates the disease in humans is needed. The tree shrew (Tupaia belangeri) is closely related to primates and susceptible to HBV. We previously established that neonatal tree shrews can be persistently infected with HBV in vivo, and here present a six year follow-up histopathological study of these animals.

[Factors influencing long-term hepatitis B virus infection of the tree shrew (Tupaia belangeri chinensis) as an in vivo model of chronic hepatitis B].

Objective: To determine the methods for establishing an in vivo model of long-term hepatitis B virus (HBV) infection in the Chinese tree shrew (Tupaia belangeri chinensis).

Methods: Seventy-seven neonate (1-3 days old) and 49 young adult (2 weeks to 1 year old) tree shrews were inoculated with different HBV sources (chronic hepatitis B (CHB) human patient serum, single or pooled; HBV-infected tree shrew serum, single only; HBV-infected HepG2.2.

Trends in nasopharyngeal carcinoma mortality in China, 1973-2005.

Nasopharyngeal carcinoma (NPC) is a disease with distinct ethnic and geographic distribution. The incidence of NPC in Chinese residing in Asia has declined over the last few decades, but NPC mortality trends in the entire Chinese population over time have not been systematically evaluated. In this study, we examined NPC mortality at the national level in China between 1973-2005.

Experimental chronic hepatitis B infection of neonatal tree shrews (Tupaia belangeri chinensis): a model to study molecular causes for susceptibility and disease progression to chronic hepatitis in humans.

Background: Hepatitis B virus (HBV) infection continues to be an escalating global health problem. Feasible and effective animal models for HBV infection are the prerequisite for developing novel therapies for this disease. The tree shrew (Tupaia) is a small animal species evolutionary closely related to humans, and thus is permissive to certain human viral pathogens.

[Progress on establishment of tree shrew (Tupaia) chronic infection with HBV in vivo].

Hepatitis B virus (HBV) infection is one of the important health problems worldwide, especially in China. Feasible and effective animal models of HBV infection in vivo are prerequisite for the HBV-related basic and clinical studies. Located in the highly prevalent region of HBV and hepatocellular carcinoma (HCC), the laboratory of Guangxi Cancer Institute has focused on the cause, pathogenesis and chemoprevention of HCC, and has started the work of establishing tree shrew (Tupaia) models of HBV infection in vivo since the early 1980s.

[Study on the relationship between familial clustering of hepatocellular carcinoma and polymorphism of cytochrome P450 2E1 gene in Zhuang population, Guangxi].

Objective: To study the relationship between familial clustering of hepatocellular carcinoma (HCC) and the polymorphism of cytochrome P450 2El gene (CYP2E1) as well as of other relevant risk factors to the cancer.

Methods: Peripheral blood samples were collected from 91 members of 10 HCC clustering families and 102 of 10 control families, among Zhuang population, in Guangxi. The area had been with high incidence rate of HCC.

[Ginkgo biloba extracts (EGb761) inhibits aflatoxin B1-induced hepatocarcinogenesis in Wistar rats].

Objective: To investigate the effect of Ginkgo biloba extracts (EGb761) on aflatoxin B1 (AFB1)-induced hepatocarcinogenesis and its antioxidant activity in Wistar rats.

Methods: 71 Wistar rats were randomly divided into three groups: AFB1 (group A); AFB1 +EGb761 (group B), Control (group C). Rats in gurop A and B were injected with AFB, through abdomen and the doses were 100-200 microg/kg, one to three times a week.

[Dendritic cell vaccine modified by murine mAFP gene enhances immunoprotective effect on liver carcinogenesis and tumor development in mice].

Objective: To construct a dendritic cell vaccine transduced by murine alpha-fetoprotein (mAFP) gene, and evaluate its immunoprotective effect on C57BL/6J mice during the induction of hepatocellular carcinoma by diethylnitrosamines, carbon tetrachloride and ethanol.

Methods: Dendritic cells (DCs) were induced and augmented by murine IL-4 and GM-CSF, and transfected by recombinant adenovirus engineered with mAFP gene. Major MHC class I and II, B7.

Proteome analysis of aflatoxin B1-induced hepatocarcinogenesis in tree shrew (Tupaia belangeri chinensis) and functional identification of candidate protein peroxiredoxin II.

In order to explore the proteins responsible for hepatocellular carcinoma (HCC), aflatoxin B(1)-induced hepatocarcinogenesis in tree shrew (Tupaia belangeri chinensis) was analyzed with 2-DE and MS. By comparing HCC samples with their own precancerous biopsies and HCC-surrounding tissues, a group of candidate proteins that differentially expressed in HCC were obtained. Peroxiredoxin (Prx) II, one of the candidates with distinct alteration, was further investigated and validated.

[A cross-sectional study on liver diseases in the rural residents in southern Guangxi, China].

Objective: To study the epidemiological characteristics of liver diseases in a rural population in Southern Guangxi, China.

Methods: The enzyme immunoassays was used to detect of HBsAg and AFP. AFP positive serum samples were further examined for concentration of AFP by using a radio immunoassays.

Candidate genes responsible for human hepatocellular carcinoma identified from differentially expressed genes in hepatocarcinogenesis of the tree shrew (Tupaia belangeri chinesis).

Aim: To explore gene expression profiles during hepatocarcinogenesis of the tree shrew, and to find the genes responsible for human hepatocellular carcinoma (HCC).

Methods: Tree shrews were used as an animal model for HCC induction employing aflatoxin B(1) (AFB(1)) alone or AFB(1) plus hepatitis B virus (HBV) as etiological factors. Gene expression profiles from the tissues of HCC, HCC-surrounding liver tissues (para-HCC) and the corresponding biopsies taken from the same animals before HCC had developed (pre-HCC) were analyzed by cDNA microarray assay to identify differentially expressed genes.