Publications by authors named "Yakun Wu"

Basal-like breast cancer (BLBC) is a major subtype of triple-negative breast cancer (TNBC), characterized by aggressive behavior, limited treatment options, and poor prognosis. While HER3 overexpression is frequently observed in TNBC and associated with poor outcomes, its subtype-specific expression and therapeutic potential remain unclear. Here, we demonstrated that HER3 signaling is selectively hyperactivated in BLBC compared to claudin-low breast cancer (CLBC) using transcriptomic profiling.

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Introduction/aims: NEB mutations are the most frequent causes of autosomal recessive subtypes of nemaline myopathies (NMs). There are few studies on muscle magnetic resonance imaging (MRI) changes in NEB-related NMs. We aimed to characterize the diagnostic and prognostic value of muscle MRI patterns in NEB-related NMs.

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Objectives: The occurrence of chronic inflammatory demyelinating polyneuropathy (CIDP) in patients with end-stage renal disease (ESRD) has been rarely studied. This study was intended to explore the clinical, electrophysiological and neuropathological features of six patients with CIDP and ESRD.

Methods: The medical records collected in Peking University First Hospital between 2021 and 2024 were reviewed before six patients were identified who had developed CIDP with ESRD.

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Background: Although numerous anticancer drugs targeting vascular endothelial growth factor (VEGF) are commonly used in clinical practice, life-threatening drug-drug interactions (DDIs) involving these drugs are rarely reported.

Case Summary: A male patient had been taking aspirin for two years following a stroke. He was subsequently diagnosed with hepatocellular carcinoma (HCC) and initiated lenvatinib therapy.

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The aim of this study was to investigate the molecular structure of sPLA2 and its mechanism of action in hepatocellular carcinoma. The expression system of sPLA2 and its related proteins was constructed by gene cloning and protein expression techniques, and the molecular structure of sPLA2 was analyzed in detail. The effects of PLA2G12B protein level on proliferation, apoptosis and migration of hepatocellular carcinoma cells were studied by RNA interference and gene overexpression in vitro.

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In the era of global warming, the conversion of carbon dioxide into high-value products has become a widely scrutinized emerging mitigation strategy. Metalation of bpy-containing MOF-253 led to the synthesis of MOF-253-0.5Ag, which acts as an efficient catalyst for the carbonylative cyclization of CO with alkyne molecules (such as propynyl alcohols and propynyl amines) at room temperature and ambient CO pressure, yielding the corresponding α-alkyl cyclic carbonates and oxazolidinones, thus endowing the catalytic system with bifunctional characteristics.

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Background: Young adults contribute substantially to the social economy. However, the number of young adults with liver cancer has increased recently. In addition, the mortality rate of these patients is high.

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Article Synopsis
  • Human coronaviruses can cause a range of symptoms, from mild colds to severe respiratory issues, but the mechanisms by which they promote inflammation during infection are not fully understood.
  • The study highlights the role of coronavirus nonstructural protein 14 (NSP14) in manipulating the host's immune response by activating NF-κB through the linear ubiquitin chain assembly complex (LUBAC).
  • Specifically, the interaction between NSP14 and HOIL-1-interacting protein (HOIP) leads to the recruitment of NF-κB signaling components, resulting in increased proinflammatory factor expression while inhibiting type I interferon responses, thereby contributing to a skewed inflammatory response.
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Stimulator of interferon genes (STING) is an endoplasmic reticulum (ER) protein that plays a crucial role in cytosolic DNA-mediated innate immunity. Both STING agonists and antagonists have demonstrated their ability to enhance mouse survival against coronavirus, however, the physiological role of endogenous STING in coronavirus infection remains unclear. Our research unveils that STING inhibits coronavirus replication by impeding the formation of the ER-derived double-membrane vesicles (DMVs), the organelles in which coronavirus replicates.

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A thorough comprehension of nitrogen biogeochemical processes in the vadose zone is crucial for the effective prevention and remediation of soil-groundwater system contamination. Despite the growing research on this subject, the full scope of nitrogen biogeochemical characterization in different geological environments remains poorly understood. This study addresses this knowledge gap by integrating geochemical, microbiological and numerical simulation approaches to gain a deeper insight into nitrogen biogeochemistry in agriculture.

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Background: Indeterminate dendritic cell tumor (IDCT) is a rare tumor of immune cells, and IDCT patients without skin lesions are rarely reported. Therefore, the clinical course in this type of patient is unclear, and further research on the underlying pathological mechanisms and appropriate treatments is needed.

Case Summary: This study describes a female IDCT patient with bile duct lesions.

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Gaseous carbon exchange at the water-air interface of rivers and lakes is an essential process for regional and global carbon cycle assessments. Many studies have shown that rivers surrounding urban landscapes can be hotspots for greenhouse gas (GHG) emissions. Here we investigated the variability of diffusive GHG (methane [CH] and carbon dioxide [CO]) emissions from rivers in different landscapes (i.

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Article Synopsis
  • A new 3D zinc-based metal-organic framework (MOF) was created using a unique organosilicon-based linker, which provides multiple -COO sites for zinc immobilization and features irregular channels and a large surface area for potential catalytic use.
  • The framework was further modified by adding magnesium to form a bimetallic MOF (ZnMg-), which showed improved catalytic performance over the original zinc framework in specific reactions.
  • Experiments and theoretical analyses suggested that the presence of bimetallic active sites in ZnMg- enhances the chemical fixation of epoxides and CO, leading to effective production of cyclic carbonates.
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Objective: To investigate the safety, local ablation efficacy, analgesic effects, and factors influencing the survival of patients with advanced pancreatic cancer treated with high-intensity focused ultrasound (HIFU).

Materials And Methods: Patients with advanced pancreatic cancer who underwent HIFU for the first time at the Suining Central Hospital between January 2018 and September 2022 were enrolled. The efficacy of tumor ablation was assessed using enhanced computed tomography (CT) and magnetic resonance imaging (MRI), pain relief was assessed using the visual analog scale (VAS), and complications and survival rates were investigated.

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The incidence of ampulla of Vater carcinoma, a type of periampullary cancer, has been increasing at an annual percentage rate of 0.9%. However, patients with ampulla of Vater carcinoma have quite different prognoses due to the heterogeneities of the tissue origin of this carcinoma.

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Objective: To evaluate the feasibility, safety, and efficacy of high-intensity focused ultrasound (HIFU) and microwave ablation (MWA) for the treatment of small liver metastatic tumors.

Methods: Fifty-eight patients with small liver metastatic tumors who underwent HIFU (n = 28) or MWA (n = 30) at Suining Central Hospital between January 2016 and December 2021 were retrospectively evaluated. Demographic and clinical characteristics were compared between the two groups.

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Situs inversus totalis is a rare congenital anatomical anomaly that causes some difficult problems for surgeons when performing an operation. However, without histopathology specimens from surgery, a misdiagnosis of cancer may be unavoidable, in addition to affecting the improvement of prognosis. This study reports a rare patient with situs inversus totalis who presented with the main complaints of pruritus and vague abdominal pain.

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Nitrogen pollution in groundwater is an environmental issue of global concern. Identifying nitrogen pollution sources and determining migration and transformation processes are the major ways to prevent and control nitrogen pollution in the groundwater on a regional scale. In this study, groundwater in the lower Wei River was investigated by combining multi-isotope tracing techniques with the SIAR hybrid model (source resolution) to trace the nitrate sources and their contribution rate to nitrogen pollution in groundwater of different geomorphological units, considering types of geomorphology as the units.

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Although toluene is a typical in-vehicle pollutant, the impacts of in-vehicle toluene exposure on cognitive functions remain unestablished. Therefore, this study aimed to investigate the effects of short-term toluene exposure in vehicles on working memory based on neural oscillations. In total, 24 healthy adults were recruited.

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To study the inorganic nitrogen in the process of interaction of river and groundwater and the changes in the microbial community, a vertical simulation device was used to simulate groundwater recharge to river water (upwelling) and river water recharge to groundwater (downwelling). The inorganic nitrogen concentrations in the soil and water solution as well as the characteristics of the microbial community were assessed to determine the inorganic nitrogen transformation and microbial community response in the heterogeneous interaction zone under hydrodynamic action, and the interaction mechanism between nitrogen transformation and the microbial community in the interaction zone was revealed. The removal rates of NO-N in the simulated solution reached 99.

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Rationale: Upper gastrointestinal hemorrhage (UGIH) is defined as hemorrhage originating from the gastrointestinal tract proximal to the ligament of Treitz. The causes of UGIH include esophagitis, gastritis, peptic ulcers, Mallory-Weiss syndrome, and cancer. However, a rare cause of UGIH, such as an accessory spleen, may lead to serious complications if left untreated and can sometimes be very difficult to diagnose preoperatively.

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The DNA sensor cGAS detects cytosolic DNA and instigates type I interferon (IFN) expression. Recent studies find that cGAS also localizes in the nucleus and binds the chromatin. Despite the mechanism controlling nuclear cGAS activation is well elucidated, whether nuclear cGAS participates in DNA sensing is unclear.

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Article Synopsis
  • Long-term survival rates for patients with hepatocellular carcinoma (HCC) are poor due to ongoing cancer development, prompting research into gene signatures as prognosis indicators.
  • The study analyzed data from TCGA to find 280 genes with altered expression related to survival, highlighting three crucial genes (FCN3, CDC20, and E2F1) linked to better long-term outcomes.
  • A prognostic model was developed using CDC20 and FCN3, finding that high-risk patients had shorter survival times, while also discovering connections between risk scores and immune cell infiltration in HCC, suggesting potential for targeted therapy.
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The mouse is a common and cost-effective animal model for basic research, and the number of genetically engineered mouse models with cardiac phenotype is increasing. In vivo electrophysiological study in mice is similar to that performed in humans. It is indispensable for acquiring intracardiac electrocardiogram recordings and determining baseline cardiac cycle intervals.

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