Publications by authors named "Lingyi Fu"

The presence of tumor-associated macrophages (TAMs) characterized by an M2-like phenotype sustains a robust immunosuppressive tumor microenvironment (TME), promoting liver hepatocellular carcinoma (LIHC) progression. Here, we find that genetic deletion of cyclophilin J (CYPJ) in mice significantly accelerates the development of liver cancer. Analysis of immune cell infiltration reveals that high expression of CYPJ correlates with an increased proportion of M1-polarized, anti-tumor macrophages and CD8 T cells in the TME.

View Article and Find Full Text PDF

Germline mutations in the DNA repair gene () are established predisposing factors for colorectal polyposis, colorectal carcinoma, and various extracolonic malignancies. Nevertheless, the association between mutations and central nervous system (CNS) tumorigenesis remains poorly characterized. In this study, we reported the first identification of a novel c.

View Article and Find Full Text PDF

Background: The effectiveness of immunotherapy in hepatocellular carcinoma (HCC) is limited, however, the molecular mechanism remains unclear. In this study, we identified baculoviral IAP repeat-containing protein 2 (BIRC2) as a key regulator involved in immune evasion of HCC.

Methods: Genome-wide CRISPR/Cas9 screening was conducted to identify tumor-intrinsic genes pivotal for immune escape.

View Article and Find Full Text PDF

Adenosine 5'-diphosphate ribosylation factor-like 8B (ARL8B), a small GTPase, is involved in lysosome motility. Our study investigates the role of ARL8B in hepatocellular carcinoma (HCC) using in vitro and in vivo experiments, bioinformatics, and clinical data. We found that ARL8B expression is abnormally elevated in HCC and correlates with poor prognosis.

View Article and Find Full Text PDF

Ferroptosis, a novel form of regulated cell death induced by the excessive accumulation of lipid peroxidation products, plays a pivotal role in the suppression of tumorigenesis. Two prominent mitochondrial ferroptosis defense systems are glutathione peroxidase 4 (GPX4) and dihydroorotate dehydrogenase (DHODH), both of which are localized within the mitochondria. However, the existence of supplementary cellular defense mechanisms against mitochondrial ferroptosis remains unclear.

View Article and Find Full Text PDF

Objective: Pancreatic ductal adenocarcinoma (PDAC) has an immune-suppressive tumor microenvironment that contributes to resistance to immunotherapy. This study aimed to demonstrate that elevated sterile alpha motif domain-containing protein 3 (SAMD3) expression in effector CD8 T cells was associated with improved survival in PDAC patients.

Design: We investigated the heterogeneity and gene expression profiles of T cells using a single-cell RNA sequencing (sc-RNA-seq) dataset comprised of human PDAC samples.

View Article and Find Full Text PDF

The purpose of this study was to examine the associations of an online coaching intervention that included goal setting with movement behaviors and perceived general health (GH) and emotional wellbeing (EW) in college students. Participants were college students from a university within the western United States (=257; 57.2% female).

View Article and Find Full Text PDF

Adolescents' physical activity (PA) and sports participation declined due to the COVID-19 pandemic. This study aimed to determine the critical socio-ecological factors for PA and sports participation using a machine learning approach. We did a cross-sectional secondary data analysis utilising the 2021 National Survey of Children's Health (NSCH) dataset (=16,166; 49.

View Article and Find Full Text PDF

Astroblastoma is an extremely rare central nervous system tumor characterized by astroblastic pseudorosettes and vascular hyalinization. Despite these histologic hallmarks, its morphology can vary, occasionally resembling other central nervous system tumors such as ependymoma. A novel tumor entity, astroblastoma, meningioma 1 ( MN1 )-altered, has been identified, featuring MN1 gene rearrangements typically involving BEN-domain containing 2 ( BEND2 ) as a fusion partner.

View Article and Find Full Text PDF
Article Synopsis
  • Chronic inflammation is linked to various disorders, including colorectal cancer, often fueled by overactivation of the NF-κB signaling pathway through linear ubiquitin chains.
  • The linear ubiquitin chain assembly complex is the sole E3 complex responsible for synthesizing these linear chains and activating NF-κB, promoting inflammation and cancer.
  • Cyclophilin J (CYPJ) acts as a negative regulator of this process; its absence increases susceptibility to colitis and colon cancer, while high CYPJ levels correlate with better survival rates in cancer patients.
View Article and Find Full Text PDF

Alongside academic learning, there is increasing recognition that educational systems must also cater to students' well-being. This study examines the key factors that predict adolescent students' subjective well-being, indexed by life satisfaction, positive affect, and negative affect. Data from 522,836 secondary school students from 71 countries/regions across eight different cultural contexts were analyzed.

View Article and Find Full Text PDF

Personalized immunotherapy targeting tumor-specific antigens (TSAs) could generate efficient and safe antitumor immune response without damaging normal tissues. Although neoantigen vaccines have shown therapeutic effect in clinic trials, precise prediction of neoantigens from tumor mutations is still challenging. The host antitumor immune response selects and activates T cells recognizing tumor antigens.

View Article and Find Full Text PDF
Article Synopsis
  • Metastasis significantly contributes to the high mortality rate in lung cancer, yet the molecular mechanisms behind it remain unclear.
  • Research revealed that diacylglycerol kinase alpha (DGKA) is overexpressed in metastatic non-small cell lung cancer (NSCLC) and is associated with poorer survival rates.
  • DGKA interacts with SRC and FAK proteins, facilitating phosphorylation that triggers pathways linked to cancer progression, such as WNT/β-catenin and VEGF, which encourage processes like epithelial-mesenchymal transition (EMT) and angiogenesis, leading to metastasis.
  • DGKA could serve as a valuable prognostic marker and a potential target for therapeutic interventions in NSCLC, particularly in cases with metastasis.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the role of nuclear pore complex protein Nup93 in hepatocellular carcinoma (HCC) progression and metastasis, analyzing data from 729 HCC cases.
  • Elevated levels of Nup93 were found in HCC tissues, particularly in metastatic cases, and were associated with poorer patient prognosis.
  • Nup93 was shown to enhance HCC cell growth and spread by regulating β-catenin movement, suggesting that targeting the Nup93-β-catenin pathway could provide new therapeutic options for HCC treatment.
View Article and Find Full Text PDF

Immunologic checkpoint blockade has been proven effective in a variety of malignancies. However, high rates of resistance have substantially hindered its clinical use. Understanding the underlying mechanisms may lead to new strategies for improving therapeutic efficacy.

View Article and Find Full Text PDF

Psychological distress has long been suspected to influence cancer incidence and mortality. It remains largely unknown whether and how stress affects the efficacy of anticancer therapies. We observed that social defeat caused anxiety-like behaviors in mice and dampened therapeutic responses against carcinogen-induced neoplasias and transplantable tumors.

View Article and Find Full Text PDF

Aims: Primary cardiac lymphoma (PCL) is a rare neoplasm. PCL is fatal, unless it is diagnosed and treated early. Recently, a small number of cases of diffuse large B cell lymphoma (DLBCL) arising within atrial myxoma have been reported in immunocompetent patients and showed aggressive histological features but an indolent clinical behaviour.

View Article and Find Full Text PDF

Melatonin, a molecule produced throughout the animal and plant kingdoms, and berberine, a plant derived agent, both exhibit antitumor and multiple biological and pharmacological effects, but they have never been combined altogether for the inhibition of human lung cancers. In this study, we investigated the role and underlying mechanisms of melatonin in the regulation of antitumor activity of berberine in lung cancer cells. Treatment with melatonin effectively increased the berberine-mediated inhibitions of cell proliferation, colony formation and cell migration, thereby enhancing the sensitivities of lung cancer cells to berberine.

View Article and Find Full Text PDF

Rabdosia serra has been widely used for the treatment of the various human diseases. However, the antiproliferative effects and underlying mechanisms of the compounds in this herb remain largely unknown. In this study, an antiproliferative compound against human nasopharyngeal carcinoma (NPC) cells from Rabdosia serra was purified and identified as lasiodin (a diterpenoid).

View Article and Find Full Text PDF

Background: TFAP2B is a member of the AP2 transcription factor family, which orchestrates a variety of cell processes. However, the roles of TFAP2B in regulating carcinogenesis remain largely unknown. Here, we investigated the regulatory effects of TFAP2B on lung adenocarcinomas growth and identified the underlying mechanisms of actions in non-small cell lung cancer (NSCLC) cells.

View Article and Find Full Text PDF

The elevated expression and activation of human telomerase reverse transcriptase (hTERT) is associated with the unlimited proliferation of cancer cells. However, the excise mechanism of hTERT regulation during carcinogenesis is not well understood. In this study, we discovered cleavage and polyadenylation specific factor 4 (CPSF4) as a novel tumor-specific hTERT promoter-regulating protein in lung cancer cells and identified the roles of CPSF4 in regulating lung hTERT and lung cancer growth.

View Article and Find Full Text PDF

Cleavage and polyadenylation specific factor 4 (CPSF4), a member of CPSF complex, plays a key role in mRNA polyadenylation and mRNA 3' ends maturation. However, its possible role in lung cancer pathogenesis is unknown. In this study, we investigated the biological role and clinical significance of CPSF4 in lung cancer growth and survival and elucidated its underlying molecular mechanisms.

View Article and Find Full Text PDF

TFAP2A is a transcription factor that orchestrates a variety of cell processes, including cell growth and tissue differentiation. However, the regulation of TFAP2A in human nasopharyngeal carcinoma tumorigenesis and its precise mechanism of action remain largely unknown. In this study, we investigated the biologic role and clinical significance of TFAP2A in nasopharyngeal carcinoma growth and progression and identified the underlying molecular mechanisms.

View Article and Find Full Text PDF