Publications by authors named "Peng Hou"

Purpose: This study was designed to investigate the clinical feasibility of [F]AlF-FAP-NUR, including the pharmacokinetics, radiation dosimetry estimation, and the head-to-head comparison with [F]FDG. The head-to-head comparison study was designed to investigate the radiotracer uptake of [F]AlF-FAP-NUR, to detect the primary and metastatic lesions in patients with various solid cancers, and to compare the results with those of [F]FDG PET/CT. The correlation of FAP-expression (H-scores) and standardized uptake values (SUVs) derived from [F]AlF-FAP-NUR were also included.

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Background: Mutations in KRAS and BRAF genes are prevalent in colorectal cancer (CRC), which strikingly promote tumorigenesis and lead to poor response to a variety of treatments including immunotherapy by activating the MAPK/ERK pathway. Thus, there is an urgent need to discover effective therapeutic targets and strategies.

Methods: CRISPR-Cas9 lentiviral knockout library was used to screen the suppressors of anti-PD1 immunotherapy.

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Immune checkpoint blockades (ICBs) have emerged as the leading strategy for treating advanced malignancies; however, their clinical efficacy is frequently constrained by primary or acquired resistance. Harnessing innate immune signaling to increase lymphocyte infiltration into tumors has been recognized a promising approach to augment the anti-cancer immune response to ICBs. Disulfiram (DSF), an FDA-approved drug for chronic alcoholism, has shown potent anti-tumor effect, particularly when used in combination with copper (Cu).

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Objective:  To investigate the efficacy of balloon dilatation combined with stent implantation in the treatment of iliac vein compression syndrome (IVCS).

Methods:  This research was a retrospective study that enrolled 127 IVCS patients for clinical data. The patients were divided into percutaneous transluminal angioplasty (PTA) group ( = 63) and stent implantation group ( = 64).

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Background: Disruption of circadian rhythm was found to be associated with immune infiltration and thyroid cancer. However, the role of clock circadian regulator (CLOCK) in the progression of thyroid cancer and its immune microenvironment remains largely unexplored. Therefore, our aim was to explore the role and potential mechanism of CLOCK in thyroid cancer.

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A novel fluorescent probe, Bibc-DNBS, based on the combination of the PET (photoinduced electron transfer) and ESIPT (excited-state intramolecular proton transfer) mechanisms, was designed and synthesized. Bibc-DNBS exhibited a Stokes shift of 172 nm in the fluorescence detection field. In addition, the probe exhibited good performance in key parameters in bioassays such as sensitivity, specificity, and response time.

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Background: This study examines the relationship between Hb, RDW and their association and both short-term and long-term mortality in patients with acute aortic dissection (AAD), aiming to establish combined effect between Hb and RDW as a potential prognostic biomarker for AAD outcomes.

Methods: We extracted clinical data from the Medical Information Mart for Intensive Care (MIMIC) databases for this analysis. Using adjusted Cox regression and Kaplan-Meier survival curve analyses, we assessed the relationship between Hb, RDW and their association at admission and mortality at multiple post-discharge intervals (30 days, 90 days, 1 year, and 5 years) among patients with AAD.

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The purpose of this study was to investigate the feasibility of using F-labeled fibroblast activation protein inhibitor (FAPI) PET/CT in assessing the fibrotic remodeling of the pulmonary artery (PA) and the right ventricle (RV) in pulmonary arterial hypertension (PAH). In a rat model of monocrotaline-induced PAH, rats were euthanized at different time points for tissue analysis (fibroblast activation protein immunofluorescence and Masson's trichrome staining) after completing F-FAPI PET/CT and hemodynamic measurements. Thirty-eight PAH patients were enrolled to participate in F-FAPI PET/CT imaging, with right heart catheterization and echocardiography performed within 1 wk to assess pulmonary hemodynamics and cardiac function.

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Article Synopsis
  • The research utilized data from the Chinese General Social Survey (CGSS 2021) to investigate how Internet use positively affects the physical and mental health of elderly individuals in China.
  • It found that Internet use enhances health through increased physical exercise, social interaction, and particularly through higher learning frequency, indicating that continuous learning is crucial for seniors in the digital age.
  • However, the benefits are not equal across different socio-economic groups, with higher socio-economic status elders experiencing greater mental health improvements, leading to suggestions for increased Internet accessibility, tailored apps, and targeted education for less advantaged elderly populations.
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This study explores the protective mechanism of mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) in diabetic foot ulcer (DFU). Human umbilical cord MSCs (HucMSCs) were identified via osteogenesis and adipogenic differentiation, as well as flow cytometry. EVs were isolated from HucMSCs and characterized using transmission electron microscopy, nanoparticle tracking analysis, and Western blotting.

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  • The study investigates the effectiveness of a new imaging technique, fluorine-18-labeled FAP inhibitor (FAPI-42), for detecting systemic vasculitis in patients, comparing it to the standard FDG imaging technique.
  • A retrospective analysis of 30 patients revealed that FAPI-42 had a higher detection rate for lesions (100% vs. 93.3%) and identified more lesions overall compared to FDG (161 vs. 145).
  • FAPI-42 also showed a moderate correlation with inflammatory markers, suggesting it may be a valuable tool for assessing systemic vasculitis severity.
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Marine sponges are a prolific source of biologically active small molecules, many of which originate from sponge-associated bacteria. Identifying the producing bacteria is a key step in developing sustainable routes for the production of these metabolites. To facilitate the required computational analyses, we developed MetaSing, a reproducible singularity-based pipeline for assembly, identification of high-quality metagenome-assembled genomes (MAGs), and analysis of biosynthetic gene clusters (BGCs) from metagenomic short-read data.

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  • Ubiquitin-specific peptidase 44 (USP44) is a key player in tumor development across various cancers but its role in thyroid cancer is not well understood.
  • The study found that USP44 is often downregulated in thyroid cancer due to promoter hypermethylation, which is associated with worse survival rates for patients.
  • USP44 helps suppress thyroid cancer cell growth by stabilizing the protein p21, preventing cell cycle progression, and its loss leads to increased cell proliferation.
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Despite the considerable achievements of antibodies targeting PD-1/PD-L1 in cancer immunotherapy, limitations in antitumor immune response and pharmacokinetics hinder their clinical adoption. Small molecules toward PD-L1 degradation signifies an innovative avenue to modulate PD-1/PD-L1 axis. Herein, we unveil a comprehensive engineering involving the development of new PD-L1 degraders based on the berberine (BBR) and palmatine (PMT) bioactive frameworks and explore their translational potential for cancer immunotherapy using a peptide-drug conjugate strategy.

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As the capacity of individual offshore wind turbines increases, prolonged downtime (due to maintenance or faults) will result in significant economic losses. This necessitates enhancing the efficiency of vessel operation and maintenance (O&M) to reduce O&M costs. Existing research mostly focuses on planning O&M schemes for individual vessels.

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Patients with non-small cell lung cancer (NSCLC) are easily resistant to first-line chemotherapy with paclitaxel (PTX) or carboplatin (CBP). N-methyladenosine (mA) methyltransferase-like 3 (METTL3) has crucial functions in mA modification and tumorigenesis. However, its role in chemoresistance of NSCLC is still elusive.

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  • Thiols are important antioxidants in food, improving shelf life and flavor, and are essential for various biological processes like enzyme activity and protein folding.
  • The paper introduces a fluorescent probe called PYL-NBD, which detects biothiols (like Cysteine, Homocysteine, and Glutathione) using distinct fluorescence signals based on single-wavelength excitation.
  • PYL-NBD shows rapid reaction times and low detection limits, and it's been successfully used for quantitative analysis in food and biological samples, including imaging in living cells and organisms.
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The equilibrium state of hydrogen sulfide (HS), a gaseous signaling molecule produced by lysosomal metabolites, in vivo is crucial for cellular function. Abnormal fluctuations in HS concentration can interfere with the normal function of lysosomes, which has been closely linked to the pathogenesis of a variety of diseases. In view of this, a novel fluorescent probe based on 1,3,5-triarylpyrazolines was developed for the precise detection of HS in lysosomes by using the hydrophilic morpholine moiety as a lysosomal targeting unit, and 2,4-dinitroanisole as a fluorescence-quenching and HS-responsive unit.

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Article Synopsis
  • Biothiols, featuring unique sulfhydryl groups, are powerful antioxidants that protect cells from damage caused by reactive oxygen species (ROS), while lysosomes help decompose damaged molecules and manage oxidative stress.
  • A new fluorescent probe, PHL-DNP, was developed to swiftly monitor biothiol levels specifically in lysosomes; it shows strong fluorescence, high selectivity, and very low detection limits for different biothiols such as cysteine and glutathione.
  • PHL-DNP has low toxicity, effectively targets lysosomes, and allows for monitoring of biothiol changes in various biological systems, making it a valuable tool for biothiol analysis, disease marker detection, and testing drug efficacy.
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Multimodal treatment of cancer is an unstoppable revolution in clinical application. However, designing a platform that integrates therapeutic modalities with different pharmacokinetic characteristics remains a great challenge. Herein, we designed a universal lipid nanoplatform equipping a ROS-cleavable docetaxel prodrug (DTX-L-DTX) and an NF-E2-related factor 2 (NRF2) inhibitor (clobetasol propionate, CP).

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Introduction: Developing effective methods to enhance tumor radiosensitivity is crucial for improving the therapeutic efficacy of radiotherapy (RT). Due to its deep tissue penetration, excellent safety profile, and precise controllability, sonosensitizer-based sonodynamic therapy (SDT) has recently garnered significant attention as a promising combined approach with RT.

Methods: However, the limited reactive oxygen species (ROS) generation ability in the aggregated state and the absence of specific organelle targeting in sonosensitizers hinder their potential to augment RT.

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As a type of reactive oxygen species, hypochlorous acid (ClO) plays an important role in sterilization, disinfection and protection in organisms. However, excessive production of ClO is closely related to various diseases. In this work, we have designed a robust ratiometric fluorescent probe, RDB-ClO, using the excited-state intramolecular proton transfer (ESIPT) strategy.

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Article Synopsis
  • Scientists are studying PLK1 as a way to treat small cell lung cancer (SCLC) but need to understand better how it works with certain drugs.
  • They found that a protein called BRCA1 affects how SCLC cells respond to a drug called BI-2536, and combining it with another drug, alisertib, can cause cancer cells to die.
  • The study shows that two important pathways, MYC/MYCN and RAD51, are key for making SCLC cells react to BI-2536, suggesting using both drugs together might be a new way to help patients with this type of cancer.
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