Publications by authors named "Le-Le Zhang"

Epstein-Barr virus (EBV)-positive inflammatory follicular dendritic cell sarcoma (EBV+ IFDCS) is a rare indolent malignant neoplasm, which occurs almost exclusively in the liver or spleen and may arise from a common EBV-infected mesenchymal cell that differentiates along the follicular or fibroblastic dendritic cell pathway. Despite its rarity, it presents a pressing need for an improved understanding of its genetic underpinnings and potential treatment strategies for recurrent or disseminated cases. To address this, we conducted comprehensive whole-exome sequencing (WES) and transcriptome sequencing (mRNA-seq) analyses on 31 and 6 cases of EBV+ IFDCS, respectively, collected from multiple centers in China.

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Artificial intelligence (AI) is revolutionizing biotechnology by transforming the landscape of therapeutic development. Traditional drug discovery faces persistent challenges, including high attrition rates, billion-dollar costs, and timelines exceeding a decade. Recent advances in AI-particularly generative models such as generative adversarial networks, variational autoencoders, and diffusion models-have introduced data-driven, iterative workflows that dramatically accelerate and enhance pharmaceutical R&D.

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Climate change and anthropogenic activities pose a formidable challenge to regional ecological systems, necessitating robust research frameworks to assess ecological environment quality. The dynamic, quantitative evaluation of such quality serves as a cornerstone for strategizing ecological protection measures and fostering ecological civilization. Leveraging MODIS data spanning from 2001 to 2020, this study harnesses the power of the Google Earth Engine (GEE) platform and the remote sensing ecological index (RSEI) as a pivotal evaluation tool to conduct a comprehensive appraisal of the ecological health of the southern slope of the Qilian Mountains.

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Porcine epidemic diarrhea virus (PEDV) is a highly contagious enteric coronavirus that causes severe diarrhea and high mortality in neonatal piglets. Effective control requires systemic, mucosal, and T cell-mediated immune responses, highlighting the need for a safe, effective, and versatile vaccine platform. In this study, a recombinant adenovirus type 5-based vaccine co-expressing the PEDV S1 and N proteins (rAd5-S1-N) was developed, and its immunogenicity and protective efficacy were evaluated in mice and piglets.

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Sestrin2 is a stress-inducible protein that exhibits protective effects against ischemia-reperfusion injury in various organs. However, the specific roles and mechanisms of Sestrin2 in intestinal ischemia-reperfusion (IIR) injury have yet to be fully elucidated. The present study aims to investigate the role of Sestrin2 in intestinal IIR injury and its underlying mechanisms.

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The outcome of immune checkpoint blockade (ICB) therapy largely hinges on the antitumor immunity of tertiary lymphoid structures (TLSs), but drivers of tumor TLS formation remain exclusive. By integrating spatial transcriptomics and a pan-cancer single-cell atlas, we reveal the characteristics of TLSs in nasopharyngeal carcinoma (NPC) and identify a subset of interferon-responsive high endothelial venules (IFN-HEVs) that links to the emergence of tumor-specific chemokines, especially CXCL9. Functionally, CXCL9-secreting IFN-HEVs are associated with the recruitment of CXCR3CD4 T cells into TLSs.

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The change of land use type seriously affects the spatial distribution pattern of regional carbon stocks. Exploring the land use status under future scenarios can provide an important reference for the spatial optimization of land use structure, carbon budget balance, and sustainable development in inland arid areas. Based on the land use types of the Haixi Prefecture in 2000, 2010, and 2020, the characteristics of land use change in the study area over 20 years were analyzed.

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Interleukin-33 (IL-33) is a nuclear factor and member of the IL-1 cytokine family. IL-33 is mainly expressed by epithelial and endothelial cells and exerts its function through interaction with various immune cells, and binding to its receptor can form the IL-33/Suppression of tumorigenicity 2 (ST2) signaling pathway. While most cytokines are actively synthesized within cells, IL-33 is produced passively in response to tissue damage or cell necrosis, indicating its role as a signaling molecule following cellular infection, stress, or trauma.

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Neuroinflammation is a key factor in the pathogenesis of Parkinson's disease (PD). Activated microglia in the central nervous system (CNS) and infiltration of peripheral immune cells contribute to dopaminergic neuron loss. However, the role of peripheral immune responses, particularly triggering receptor expressed on myeloid cells-1 (TREM-1), in PD remains unclear.

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Protein arginine methyltransferase 7 (PRMT7), a type III methyltransferase responsible solely for arginine mono-methylation, plays a critical role in numerous physiological and pathological processes. Recent studies have highlighted its aberrant expression or mutation in various cancers, implicating it in tumorigenesis, cancer progression, and drug resistance. Consequently, PRMT7 has emerged as a promising target for cancer diagnosis and therapeutic intervention.

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Introduction: Fear memory formation has been implicated in fear- and stress-related psychiatric disorders, including post-traumatic stress disorder (PTSD) and phobias. Synapse deficiency and microglial activation are common among patients with PTSD, and induced in animal models of fear conditioning. Increasing studies now focus on explaining the specific mechanisms between microglia and synapse deficiency.

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Epstein-Barr virus (EBV), the first human oncovirus discovered in 1964, has become a focal point in virology, immunology, and oncology because of its unique biological characteristics and significant role in human diseases. As we commemorate the 60th anniversary of EBV's discovery, it is an opportune moment to reflect on the major advancements in our understanding of this complex virus. In this review, we highlight key milestones in EBV research, including its virion structure and life cycle, interactions with the host immune system, association with EBV-associated diseases, and targeted intervention strategies.

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Article Synopsis
  • AXIN1 is a crucial scaffold protein that regulates cell fate and plays a significant role in antiviral immunity against both DNA and RNA viruses.
  • It stabilizes the transcription factor IRF3 by preventing its degradation and increases IRF3 phosphorylation during viral infections, enhancing the production of interferon.
  • The small molecule KYA1797K improves AXIN1 and IRF3 interactions, potentially serving as an effective antiviral treatment, with reduced AXIN1 levels linked to poorer survival rates in HBV-associated liver cancer patients.
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Somatostatin (SOM)-expressing neurons in the central lateral amygdala (CeL) are responsible for fear memory learning, but the circuit and molecular mechanisms underlying this biology remain elusive. Here, we found that glutamatergic neurons in the lateral parabrachial nucleus (LPB) directly dominated the activity of CeL neurons, and that selectively inhibiting the LPB→CeL pathway suppressed fear memory acquisition. By contrast, inhibiting CeL-projecting glutamatergic neurons in the paraventricular thalamic nucleus (PVT) interfered with consolidation-related processes.

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Article Synopsis
  • Ubiquitin-Conjugating Enzyme 5 (UBC5) is being studied as a potential target for therapies related to various diseases, particularly cancers, due to its key roles in processes like apoptosis and DNA repair.
  • Research on UBC5 has been slower compared to other ubiquitin-coupled enzymes, yet it's shown to be crucial in ubiquitinating proteins linked to disease and cellular homeostasis.
  • Recent insights into the similarities between UBC5 and its homologues (UBC1 and UBC4) are improving our understanding of how UBC5 functions in protein degradation and cellular regulation, highlighting its importance in disease treatment strategies.
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Objective: Vascular hyporeactivity increases with the incidence of obstructive jaundice (OJ). Evidence suggests that OJ activates the farnesoid X receptor (FXR) as well as the large-conductance Ca-activated K (BK or MaxiK) channel. This study was designed to explore the role of the FXR in vascular hyporesponsiveness induced by cholestasis.

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Objectives: To analyze the rules of acupoint selection in treatment of cancer-related insomnia with acupuncture and moxibustion by data mining technology.

Methods: The articles of cancer-related insomnia treated with acupuncture and moxibustion were searched from CNKI, Wanfang, VIP, SinoMed, PubMed, WOS, Cochrane, and Embase databases, from the inception of each database to January 5, 2024. The prescription database of acupuncture and moxibustion for cancer-related insomnia was established.

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Background: Immunogenic cell death (ICD) is a specific form of regulated cell death induced by a variety of stressors. During ICD, the dying cancer cells release damage-associated molecular patterns (DAMPs), which promote dendritic cell maturation and tumor antigen presentation, subsequently triggering a T-cell-mediated anti-tumor immune response. In recent years, a growing number of studies have demonstrated the potential of natural products to induce ICD and enhance tumor cell immunogenicity.

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Article Synopsis
  • Intervertebral disc degeneration (IDD) is a common cause of low back pain with limited treatment options that mainly focus on symptom relief rather than addressing the condition itself.
  • * Oxidative stress, caused by an overload of reactive oxygen species (ROS), contributes significantly to the progression of IDD.
  • * Polyphenols, which are natural antioxidants, may offer a potential treatment by reducing ROS, scavenging free radicals, and influencing molecular pathways involved in IDD, although there are still challenges to overcome in their application.
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Ischemia-reperfusion (IR) injury is primarily characterized by the restoration of blood flow perfusion and oxygen supply to ischemic tissue and organs, but it paradoxically leads to tissue injury aggravation. IR injury is a challenging pathophysiological process that is difficult to avoid clinically and frequently occurs during organ transplantation, surgery, shock resuscitation, and other processes. The major causes of IR injury include increased levels of free radicals, calcium overload, oxidative stress, and excessive inflammatory response.

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We introduce a straightforward, yet effective strategy to combat the performance decline of proton-exchange membrane fuel cells in low-humidity environments. Our method centers on air-oxidizing carbon supports, significantly improving proton and oxygen transport within the cathode catalyst layer.

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Sestrins are metabolic regulators that respond to stress by reducing the levels of reactive oxygen species (ROS) and inhibiting the activity of target of rapamycin complex 1 (mTORC1). Previous research has demonstrated that Sestrin2 mitigates ischemia-reperfusion (IR) injury in the heart, liver, and kidneys. However, its specific role in intestinal ischemia-reperfusion (IIR) injury remains unclear.

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Alzheimer's disease (AD) is a high-incidence neurodegenerative disorder, characterized by cognitive impairment, memory loss, and psychiatric abnormalities. Ganoderma lucidum is a famous medicinal fungus with a long history of dietary intake, containing various bioactive components, and have been documented to exhibit antioxidant, anti-inflammatory, anti-tumor, anti-aging, and immunomodulatory effects, among others. Recent studies have shown that G.

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