Publications by authors named "Ru Yi Chen"

Polysaccharides are the key components of natural products; however, their effects on bone repair haven't been fully evaluated. This study aimed to assess the efficacy and mechanism of polysaccharides in promoting bone repair. The Erxian herb pair polysaccharide (EHP) was isolated and purified using water extraction (1:20 (w/v); 100 ± 2 °C; 5 h) and alcohol precipitation (80 ± 2 %).

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  • UBE2T is an important enzyme in the ubiquitin-proteasome system (UPS) that regulates various cellular processes, including cell growth and apoptosis, and high levels of it have been linked to multiple types of cancer.
  • Its overexpression is associated with disease progression and worse survival rates, indicating its potential as a molecular biomarker for cancer prognosis.
  • The review discusses UBE2T's functions and mechanisms in cancer, highlighting the potential for UBE2T-targeted therapies to improve cancer diagnosis and treatment strategies.
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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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In the last decade, research has clarified the binding interactions between immunoglobulin E (IgE) and its high-affinity receptor, the FcεRI alpha chain (FcεRI). The formation of the IgE-FcεRI complex is crucial in the context of atopic allergies, linking allergen recognition to cellular activation and disease manifestation. Consequently, pharmacological strategies that disrupt these interactions are vital for managing atopic conditions.

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  • * Virtual screening of over 100,000 compounds identified 12 potential inhibitors, with compound 4 showing the most promise in blocking KDM7A's activity, leading to reduced breast cancer stem cells and cell cycle arrest.
  • * The research also highlights MKRN1 as a significant gene influenced by KDM7A, further revealing the potential of compound 4 as an effective treatment option for both drug-resistant and sensitive triple-negative breast cancer.
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Triple-negative breast cancer (TNBC) is a subtype of breast cancer with high mortality and drug resistance and no targeted drug available at present. Compound , a staurosporine alkaloid derived from sp. NBU3142 in a marine sponge, exhibits potent anti-TNBC activity.

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Jumonji domain-containing protein D3 (JMJD3) is a 2-oxoglutarate-dependent dioxygenase that specifically removes transcriptional repression marks di- and tri-methylated groups from lysine 27 on histone 3 (H3K27me2/3). The erasure of these marks leads to the activation of some associated genes, thereby influencing various biological processes, such as development, differentiation, and immune response. However, comprehensive descriptions regarding the relationship between JMJD3 and inflammation are lacking.

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  • 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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  • - Licorice, specifically the Glycyrrhiza genus, has a long history of medicinal use, with its active component Glycyrrhizin (GLY) recognized for various health benefits, including anti-inflammatory and antibacterial properties.
  • - Current research focuses on GLY's antiviral effects, but it also shows substantial antibacterial activity by inhibiting bacterial growth and enhancing host immune responses, which may help combat bacterial infections.
  • - The paper reviews GLY's mechanisms against pathogenic bacteria, its role in immune regulation, and suggests that combining it with other antibiotics could improve treatment for drug-resistant bacteria, supported by extensive research from various scientific databases.
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  • * USP36 removes ubiquitin chains from proteins, which leads to their degradation through the proteasome, and its functions are linked to various health issues like cancer, infections, and inflammation.
  • * This review aims to summarize current research on USP36's roles in diseases, enhancing our understanding of the underlying mechanisms and highlighting potential targets for therapeutic intervention.
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  • - USP21, a member of the Ubiquitin-specific peptidases (USPs), plays a critical role in various cellular processes like apoptosis and DNA repair, but research on it has been slow.
  • - Over the past decade, studies have shown that USP21 helps remove ubiquitin from key proteins that affect cell functions related to diseases, especially various cancers.
  • - The review highlights USP21's structure and its involvement in cancer development, along with promising advancements in small-molecule inhibitors aimed at targeting USP21 for potential cancer treatments.
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The Orthopoxvirus genus, especially variola virus (VARV), monkeypox virus (MPXV), remains a significant public health threat worldwide. The development of therapeutic antibodies against orthopoxviruses is largely hampered by the high cost of antibody engineering and manufacturing processes. mRNA-encoded antibodies have emerged as a powerful and universal platform for rapid antibody production.

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  • Guaico Culex virus (GCXV) is a new virus found in certain mosquitoes in Central and South America.
  • Scientists studied two types of GCXV and found they behave similarly when they infect mosquito cells in labs.
  • The virus can be found in different parts of infected mosquitoes and even in their eggs, meaning it can spread to the next generation of mosquitoes.
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  • RNA-binding proteins (RBPs), like CELF1, are crucial in managing RNA processes such as splicing and translation, influencing both normal and disease states in the body.
  • CELF1 specifically interacts with GU-rich elements in mRNA and is linked to the development of various malignant diseases, suggesting it could be a promising target for treatment.
  • The text discusses CELF1's structure, function, regulatory mechanisms, and the challenges in studying its role, emphasizing the importance of developing targeted therapies that involve CELF1.
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During the life cycle of mosquito-borne flaviviruses, substantial subgenomic flaviviral RNA (sfRNA) is produced incomplete degradation of viral genomic RNA by host XRN1. Zika virus (ZIKV) sfRNA has been detected in mosquito and mammalian somatic cells. Human neural progenitor cells (hNPCs) in the developing brain are the major target cells of ZIKV, and antiviral RNA interference (RNAi) plays a critical role in hNPCs.

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Histone demethylation is a kind of epigenetic modification mediated by a variety of enzymes and participates in regulating multiple physiological and pathological events. Lysine-specific demethylase 7A is a kind of α-ketoglutarate- and Fe(II)-dependent demethylase belonging to the PHF2/8 subfamily of the JmjC demethylases. KDM7A is mainly localized in the nucleus and contributes to transcriptional activation via removing mono- and di-methyl groups from the lysine residues 9 and 27 of Histone H3.

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Intermuscular bones (IBs), which are little, bony spicules in muscle, are embedded in lower teleosts' myosepta. Despite the importance of studying IB development in freshwater aquaculture species, the genes associated with IB development need to be further explored. In the present study, we identified four stages of IB development in barbel steed (Hemibarbus labeo), namely stage 1: IBs have not emerged, stage 2: a few small IBs have emerged in the tail, stage 3: longer IBs gradually emerged in the tail and stage 4: all of the IBs in the tail are mature and long, via Alizarin red staining.

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Hepcidin is a cysteine-rich antimicrobial peptide that serves an important role in the immunity system of fishes. It exhibits antibacterial, antifungal, antiviral, and antitumor activities. However, the exact role of fish hepcidin in the regulation of the intestinal flora still remains a mystery.

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NK-lysins (NKLs) are a family of multifunctional antimicrobial peptides that have activity against various microorganisms. However, the immunomodulatory activity of NKL in fish remains unclear. In this study, the cDNA sequence of barbel steed (Hemibarbus labeo) NKL gene was cloned.

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Fish hepcidin genes are generally classified into two groups: hamp1-and hamp2-type isoforms. Hamp1-type hepcidin exhibits iron regulatory and antimicrobial activity, while hamp2-type shows a unique role in the immune response against various pathogens. An iron-regulatory motif exists at the N-terminus of hamp1-type hepcidin; however, the functional effect of this motif in fish is not well understood.

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Arylboration and arylsilylation reactions of -(2-iodoaryl)acrylamides with bis(pinacolato)-diboron (Bpin) or PhMeSi-Bpin are developed by using simple CuOAc as the sole catalyst. A range of boron- or silane-bearing 3,3'-disubstituted oxindoles are obtained in moderate to excellent yields. The reaction is proposed to proceed via a domino sequence involving intermolecular olefin borylcupration or silylcupration followed by intramolecular coupling of an alkyl-Cu intermediate with aryl iodide.

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Protein phosphorylation plays roles in cell transformation. Numerous protein kinase enzymes actively participate in the formation of various types of cancer by phosphorylating downstream substrates. Aurora‑A is a widely known Serine/Threonine (Ser/Thr) oncogenic kinase, which is upregulated in more than twenty types of human cancer.

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The study aims to investigate the association between nonalcoholic fatty liver disease (NAFLD) and osteoporosis.We employed a retrospective cohort study design using the National Health Insurance Research Database in Taiwan. Our study included 2 cohorts: 4318 patients with NAFLD and 17,272 patients without NAFLD for comparison.

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Aim: To investigate the effect of oridonin on nuclear transcription factors and to study the relationship between biological behavior and inflammatory factors in human pancreatic cancer (BxPC-3) cells.

Methods: BxPC-3 cells were treated with various concentrations of oridonin, and viability curves were generated to test for inhibitory effects of the drug on cells. The expression of cytokines such as interleukin-1β (IL-1β), IL-6, or IL-33 was detected in BxPC-3 cell supernatants using an enzyme-linked immunosorbent assay (ELISA), and the protein expression of nuclear transcription factors including nuclear factor κB, activating protein-1, signal transducer and activator of transcription 3, bone morphogenetic protein 2, transforming growth factor β1 and sma and mad homologues in BxPC-3 cells was detected using Western blot.

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