Publications by authors named "Xiaoyue Chen"

Osteoarthritis (OA) is a prevalent joint disorder characterized by cartilage degeneration and synovial lubrication failure, resulting in pain and restricted movement. From a physiological standpoint, key macromolecules in synovial fluid, such as hyaluronic acid, phospholipids, and lubricin, play essential roles in maintaining the boundary lubrication of articular cartilage. In OA, however, cartilage damage induces inflammatory responses that alter the composition of synovial fluid, thereby compromising its lubricating function.

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Objective: Intravenous leiomyomatosis is a rare, histologically benign yet biologically aggressive smooth muscle tumor. Previous studies have indicated that ovarian hormones may play a crucial role in the pathogenesis of intravenous leiomyomatosis. However, the question of whether the deprivation of ovarian estrogen, including bilateral oophorectomy, reduces tumor recurrence in intravenous leiomyomatosis remains unclear.

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Purpose: To develop a scale-down clone screening platform for the intensified fed-batch (IFB) process to allow efficient identification of high expressing clones fitting the IFB culture strategy in bioreactor.

Results: Three monoclonal antibodies (mAbs) were used in the development and validation of the IFB specific clone screening platform for CHO cells. The IFB platform significantly improved titer levels, achieving an average titer of 8 g/L and the highest titer of 9.

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The type IV secretion system (T4SS) is an important virulence factor of . T4SS secretes 16 effector proteins, which affect the intracellular transport of -containing vacuoles and regulate the host immune response, helping survive and replicate in host cells. In our previous crotonylation proteomics data of HEK-293T cell proteins triggered by BspF, we found BspF crotonylated on TRIM38, which is an important modulator in the pathways of inflammation, and the crotonylation site is K142.

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Zn||VO full cell exhibit excellent low-temperature performance in Zn(ClO) based electrolytes due to the strong hydrogen bond breaking effect. However, the crosstalk effect between the VO cathode and Zn anode at room temperature leads to continuous side reactions, highly limiting their practical application. Herein, a water deactivation strategy by introducing methanol additive has been proposed and its effect mechanism on the crosstalk has been explored.

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Huanglongbing (HLB) is a devastating citrus disease. In this work, we report an HLB resistance regulatory circuit in composed of an E3 ubiquitin ligase, PUB21, and its substrate, the MYC2 transcription factor, which regulates jasmonate-mediated defense responses. A helitron insertion in the promoter introduced multiple MYC2-binding cis-elements to create a regulatory circuit linking the PUB21 activity with MYC2 degradation.

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Purpose: [F]fluorodeoxyglucose (FDG)-PET is a powerful tool to evaluate prognosis in multiple myeloma (MM). The development of systematic and reproducible standard interpretation criteria is crucial for the effective application of FDG-PET in MM. A new set of criteria-Italian Myeloma criteria for PET Use (IMPeTUs)-has standardized PET evaluation in MM.

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Background: Although tertiary lymphoid structures (TLS) play crucial roles in the anti-tumor immune response and are associated with favorable prognoses in many solid tumors, the precise mechanisms by which TLSs enhance anti-tumor immunity remain poorly understood. The current study aimed to explore the relationship between the maturity of tertiary lymphoid structures and their key immune cells in combating breast cancer.

Patients And Methods: In this study, we utilized immunofluorescence and H&E staining to detect tumor-resident memory T cells (Trm) and assess the maturity of TLS, analyzing their distribution and proportion in an annotated cohort of 95 breast cancer patients.

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Laboratory automation in the biopharmaceutical industry as a rule requires contracted service from highly professional automation solution provider, at times involving the purchase and development of specialized or customized hardware and software, which can be proprietary and expensive. Alternatively, with the availability of open-source software customized for automation, it is possible to automate existing laboratory instruments in a do-it-yourself (DIY), low-cost, and flexible fashion. In this work, we used an open-source scripting language, AutoIt, to integrate an existing microplate imager into an existing automation platform that is already equipped with a 4-axis robotic arm and an automated incubator, to achieve automation of the imaging procedure in our cell line development workflow.

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Chronic kidney disease (CKD) is a global public health issue, with vascular calcification (VC) being a common and deadly complication. Despite its prevalence, the underlying mechanisms of VC remain unclear. In this study, we aimed to investigate whether and how Otubain-2 (OTUB2) contributes to VC.

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Article Synopsis
  • Chronic Obstructive Pulmonary Disease (COPD) poses a major public health issue, with eosinophilic inflammation playing a key role in its progression and flare-ups.
  • This review focuses on how eosinophils contribute to airway changes and the inflammatory processes in COPD, highlighting the potential for targeted therapies.
  • The findings suggest that targeting eosinophils could lead to better treatment strategies, emphasizing the need for ongoing research to utilize eosinophil biomarkers in managing COPD.
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  • Serratia marcescens Nuclease A (SmNucA) is commonly used in biopharmaceutical manufacturing to remove nucleotide impurities, but its effectiveness drops significantly in high-salt environments (up to 500 mM).
  • Researchers developed a variant called HighSalt NucA, which has four Lys mutations to enhance its ability to bind nucleic acids under these salty conditions, also revealing a new catalytic mechanism.
  • Additional experiments showed that other mutations (involving Arg and various hydrophobic or polar residues) also contribute to salt tolerance, allowing HighSalt NucA to maintain its activity and broaden its application potential in nucleic acid removal processes.
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Scope: Cordyceps cicadae polysaccharides have received attention due to their potential in treating hyperglycemia and enhancing renal function. The beneficial effect of the purified C. cicadae polysaccharides fraction (CCP-1) on the reproductive impairments and spermatogenesis dysfunction of immunocompromised mice is unavailable and is studied herein.

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  • The study investigates the relationship between body fat variation and the risk of diabetic nephropathy in American patients with type 2 diabetes.
  • High variation in body fat is linked to an increased risk of diabetic nephropathy, especially in patients with a BMI over 30.
  • The findings suggest that obese diabetic patients should aim for gradual weight loss to avoid drastic changes in body fat.
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Background: The prevalence of vascular calcification (VC) in chronic kidney disease (CKD) patients remains substantial, but currently, there are no effective pharmaceutical therapies available. BRCA1/BRCA2-containing complex subunit 36 (BRCC36) has been implicated in osteoblast osteogenic conversion; however, its specific role in VC remains to be fully elucidated. The aim of this study was to investigate the role and underlying mechanisms of BRCC36 in VC.

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Here, we demonstrate palladium-catalyzed Hiyama-type cross-coupling reactions of aryl thianthrenium or phenoxathiinium salts. By employing stable and inexpensive organosilanes, the arylation, alkenylation, and alkynylation were realized in high efficiency using commercially available Pd(BuP) as the catalyst, thus providing a reliable method for preparation of biaryls, styrenes, and aryl acetylenes with a broad functional group tolerance under mild conditions. Given the accessibility of aryl thianthrenium or phenoxathiinium salts from simple arenes in a remarkable regioselective fashion, this protocol also provides an attractive approach for the late-stage modification of complex bioactive scaffolds.

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Functional electrical stimulation (FES) has been demonstrated as a viable method for addressing motor dysfunction in individuals affected by stroke, spinal cord injury, and other etiologies. By eliciting muscle contractions to facilitate joint movements, FES plays a crucial role in fostering the restoration of motor function compromised nervous system. In response to the challenge of muscle fatigue associated with conventional FES protocols, a novel biofeedback electrical stimulator incorporating multi-motor tasks and predictive control algorithms has been developed to enable adaptive modulation of stimulation parameters.

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Objectives: Malaria-induced alteration of physiological parameters and pharmacokinetic properties of antimalarial drugs may be clinically relevant. Whether and how malaria alters the disposition of piperaquine (PQ) was investigated in this study.

Methods: The effect of malaria on drug metabolism-related enzymes and PQ pharmacokinetic profiles was studied in Plasmodium yoelii-infected mice in vitro/in vivo.

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Article Synopsis
  • AI solutions for Gleason grading show potential for pathologists, but face challenges like inconsistent image quality and limited adaptability to different data sources.
  • The proposed digital pathology workflow includes AI-driven components for image quality control, cloud annotation, and ongoing model improvements, achieving promising results across various scanner types.
  • The model notably improves Gleason scoring speed by 43% and enhances accuracy, making it a significant step towards integrating AI in clinical practices for better diagnostic consistency.
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  • QS-21 is a clinically approved saponin-based vaccine adjuvant, but its extraction is challenging due to its complex structure and limited supply from natural sources or low-yield chemical synthesis.
  • Researchers have achieved the complete biosynthesis of QS-21 and its precursors in engineered yeast strains by carefully tuning the yeast's metabolic pathways and expressing 38 foreign enzymes from six different organisms.
  • This innovative microbial production method not only simplifies the production of QS-21 but also allows for the creation of structural analogues, paving the way for improved vaccine adjuvant design based on structure-activity relationships.
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Glycosylation of biomolecules can greatly alter their physicochemical properties, cellular recognition, subcellular localization, and immunogenicity. Glycosylation reactions rely on the stepwise addition of sugars using nucleotide diphosphate (NDP)-sugars. Making these substrates readily available will greatly accelerate the characterization of new glycosylation reactions, elucidation of their underlying regulation mechanisms, and production of glycosylated molecules.

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Intravascular large B-cell lymphoma (IVLBCL) is an aggressive extranodal large B-cell lymphoma, cocurrence in the same organ with other malignancies is very rare, especially in the lung. Here, we report a rare case of lung adenocarcinoma with IVLBCL. The patient was admitted to the hospital due to diarrhea associated with fever and cough.

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Background: Serum prostate-specific antigen (PSA) is a primary metric for diagnosis and prognosis of prostate cancer (PCa). Exposure to heavy metals, such as lead, cadmium, mercury, and zinc can impact PSA levels in PCa patients. However, it is unclear whether this effect also occurs in men without PCa, which may lead to the overdiagnosis of PCa.

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Background: Clear cell renal cell carcinoma (ccRCC) is a common type of tumor that can metastasize to any organs and sites. However, it is extremely rare for ccRCC to metastasize to the iris. Here, we describe a rare case of iris metastasis from ccRCC with a history of left nephrectomy in 2010.

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