Publications by authors named "Lili Duan"

Stroke is the second leading cause of death globally. Oxidative stress plays a critical role in the development of stroke. The Oxidative Balance Score (OBS) is a tool used to assess the combined impact of diet and lifestyle on the body's antioxidant capacity.

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The SARS-CoV-2 virus mutates rapidly, reducing the effectiveness of antibodies. The novel Class IV antibody IY2A partially unfolds the receptor-binding domain (RBD), allowing tolerance of antigenic variations and effectively neutralizing Omicron variants. In this study, we used molecular dynamics simulations and alanine scanning combined with interaction entropy method to elucidate how IY2A maintains its binding affinity across Omicron variants.

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Methyltransferase VP39 is an important target for the treatment of monkeypox, and inhibition of VP39 can effectively suppresses the transcription and translation of early viral RNA. However, very few inhibitors have been designed against VP39 and other viral MTases. In this work, four inhibitors (SFG, TO507, TO427 and TO1119) were used to investigate the binding mechanism with VP39.

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Aims: We aimed to develop Ferroptosis-Related Gene (FRG) signatures to predict overall survival (OS) along with disease-free survival (DFS) in individuals with colorectal cancer (CRC).

Background: Prediction of CRC prognosis is challenging. Ferroptosis constitutes a newly reported kind of cell death, and its association with CRC prognosis remains unexplored.

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With the ability to reveal allosteric sites, Ponatinib and Ponatinib Hybrid Inhibitor 1 (PHI1) are novel inhibitors of BRAF, a potent oncogene that activates the MAPK pathway. PHI1 also exhibits unique positive cooperativity, with enhanced inhibition on the other monomer when one monomer of the BRAF dimer bound to an inhibitor. The abovementioned properties lack rigorous theoretical verification, so this study compared the interaction mechanisms of four inhibitor types and explored the source of the cooperativity of PHI1 via various computational methods.

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DNA N6-methyladenine (6mA) is a potential epigenetic mark involved in gene transcription in eukaryotes, yet the regulatory mechanism governing its methyltransferase (MTase) activity remains obscure. Here, we exploited the 6mA MTase AMT1 to elucidate its auto-regulation in the unicellular eukaryote Tetrahymena thermophila. The detailed endogenous localization of AMT1 in vegetative and sexual stages revealed a correlation between the 6mA reestablishment in the new MAC and the occurrence of zygotically expressed AMT1.

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Stable inheritance of DNA N-methyladenine (6mA) is crucial for its biological functions in eukaryotes. Here, we identify two distinct methyltransferase (MTase) complexes, both sharing the catalytic subunit AMT1, but featuring AMT6 and AMT7 as their unique components, respectively. While the two complexes are jointly responsible for 6mA maintenance methylation, they exhibit distinct enzymology, DNA/chromatin affinity, genomic distribution, and knockout phenotypes.

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Addressing the frequent emergence of SARS-CoV-2 mutant strains requires therapeutic approaches with innovative neutralization mechanisms. The targeting of multivalent nanobodies can enhance potency and reduce the risk of viral escape, positioning them as promising drug candidates. Here, the synergistic mechanisms of the two types of nanobodies are investigated deeply.

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A panel of ferrocenyl-substituted curcumin derivatives has been designed and synthesized as protein tyrosine phosphatase proto-oncogene SHP-2 inhibitors. Antiproliferative activities of the synthesized compounds were tested against colorectal cancer cell lines (including RKO, SW480, and CT26). Compound showed excellent activities against the tested cell lines with IC values of 5.

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Accurate calculation of solvation energies has long fascinated researchers, but complex interactions within bulk water molecules pose significant challenges. Currently, molecular solvation energy calculations are mostly based on implicit solvent approximations in which the solvent molecules are treated as continuum dielectric media. However, the implicit solvent approach is not ideal because it lacks certain real solvation effects, such as that of the first solvation shell, etc.

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Article Synopsis
  • Indole-3-carboxaldehyde (3-IAld), a compound from tryptophan and gut bacteria, helps protect the intestine from radiation damage, highlighting its potential therapeutic role.
  • The study focused on the effects of Bifidobacterium longum (B. longum) and its metabolite 3-IAld in mice experiencing intestinal ischemia/reperfusion (II/R) injury, revealing a decrease in gut microbiota diversity and B. longum after injury.
  • Transplanting B. longum improved intestinal health by preserving the gut barrier and reducing inflammation, with 3-IAld showing a protective effect through targeting histone deacetylase 3 (HDAC3) and
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The ciliate Tetrahymena thermophila is a well-established unicellular model eukaryote, contributing significantly to foundational biological discoveries. Despite its acknowledged importance, current studies on Tetrahymena biology face challenges due to gene annotation inaccuracy, particularly the notable absence of untranslated regions (UTRs). To comprehensively annotate the Tetrahymena macronuclear genome, we collected extensive transcriptomic data spanning various cell stages.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused a global pandemic and a serious impact on human life and health. The spread of this virus, coupled with the emergence of many mutants, has posed increasingly formidable challenges to the design and development of antiviral drugs. Recently, it has been discovered that dalbavancin can bind to angiotensin-converting enzyme 2 (ACE2) of host cells with high affinity, blocking the interaction between the spike protein and ACE2, thereby making it a potentially promising anti-SARS-CoV-2 drug.

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The photothermal sensitivity of tobacco refers to the degree to which tobacco responds to changes in light and temperature conditions in its growth environment, which is crucial for determining the planting area of cultivars and improving tobacco yield and quality. In order to accurately and effectively evaluate the photothermal sensitivity of tobacco cultivars, this study selected five cultivars and their hybrid combinations with significant differences planted under different ecological conditions from 2021 to 2022 as materials. The experiment was conducted in two locations with significant differences in temperature and light.

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Background: Recent evidence indicates that general anesthesia and sleep-wake behavior share some overlapping neural substrates. γ-Aminobutyric acid-mediated (GABAergic) neurons in the central amygdala have a high firing rate during wakefulness and play a role in regulating arousal-related behaviors. The objective of this study was to investigate whether central amygdala GABAergic neurons participate in the regulation of isoflurane general anesthesia and uncover the underlying neural circuitry.

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  • This study explores nicotine heterosis in tobacco (Nicotiana tabacum L.), revealing that hybrid varieties can have different nicotine levels due to effective nicotine transport mechanisms.
  • It found a very strong positive correlation (0.98) between transport heterosis and nicotine heterosis in hybrids, with plant height and other physical traits enhancing nicotine transport capacity.
  • The research highlights that non-additive gene effects, especially over-dominant effects, play a critical role in nicotine transport and accumulation, providing insights for breeding strategies and nicotine production efficiency.
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  • Heterosis improves crop performance, particularly in tobacco, but the study of leaf vein ratios and their genetic impacts has been underexplored, leading to inefficiencies in resource use.
  • The research analyzed 12 hybrid combinations to investigate heterosis in leaf vein ratios, revealing that some hybrids, like the F hybrid (G70 × Qinggeng), demonstrated significant negative heterosis of up to -19.79% 80 days post-transplant.
  • A transcriptome analysis uncovered that 39.04% of differentially expressed genes showed dominant patterns, emphasizing the importance of gene expression dynamics in leaf vein ratio heterosis and linking these genes to key biological processes like hormone signaling and plant development.
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This study aims to uncover the heterogeneity of endothelial cells (ECs) in colorectal cancer (CRC) and their crucial role in angiogenesis, with a special focus on tip cells. Using single-cell RNA sequencing to profile ECs, our data suggests that CRC ECs predominantly exhibit enhanced angiogenesis and decreased antigen presentation, a shift in phenotype largely steered by tip cells. We also observed that an increase in the density and proportion of tip cells correlates with CRC occurrence, progression, and poorer patient prognosis.

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Aims: Cancer-related thrombosis (CAT) is a common complication in cancer patients, significantly impacting their quality of life and survival prospects. Nattokinase (NK) has potent thrombolytic properties, however, its efficacy is limited by low oral bioavailability and the risk of severe allergic reactions with intravenous use. Heparin (HP) is a widely used anticoagulant in clinical settings.

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Background: The emergence of robotic surgical systems compensated for the technological shortcomings of laparoscopic approaches. However, whether robotic gastrectomy (RG) has better perioperative outcomes and survival than laparoscopic gastrectomy (LG) for gastric cancer (GC) is still unclear but increasingly drawing attention.

Materials And Methods: In this systematic review and meta-analysis, we searched PubMed, EMBASE, Web of Science, and Cochrane Library as of 20 January 2024, and referenced a list of eligible articles for all published studies comparing RG and LG for patients with GC.

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Article Synopsis
  • Recent advances in cell tumor DNA (ctDNA) mutation detection still struggle with identifying low-frequency mutations due to sensitivity limitations.
  • The newly developed HiCASE technique enhances detection sensitivity to 0.01% using PCR-based CRISPR and restriction enzymes, specifically targeting EGFR mutations in non-small cell lung cancer (NSCLC).
  • In clinical tests with 140 plasma samples from NSCLC patients, HiCASE demonstrated 88.1% sensitivity and 100% specificity, outperforming existing methods and effectively distinguishing important mutations related to treatment decisions.
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Akkermansia muciniphila (A. muciniphila), a probiotic, has been linked to macrophage phenotypic polarization in different diseases. However, the role and mechanisms of A.

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Background: The outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has triggered a global health crisis, with genetic mutations and evolution further creating uncertainty about epidemic risk. It is imperative to rapidly determine the nucleic acid sequence of SARS-CoV-2 and its variants to combat the coronavirus pandemic. Our goal was to develop a rapid, room-temperature, point-of-care (POC) detection system to determine the nucleic acid sequences of SARS-CoV-2 isolates, especially omicron variants.

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