6,179 results match your criteria: "Guangdong medical University[Affiliation]"

Objective: Small cell lung cancer (SCLC) is commonly recognized as the most fatal lung cancer type. Despite substantial advances in immune checkpoint blockade therapies for treating solid cancers, their benefits are limited to a minority of patients with SCLC. In the present study, novel indicators for predicting the outcomes and molecular targets for SCLC treatment were elucidated.

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Palmoplantar hyperhidrosis is a functional disease with an unknown pathogenesis, making it challenging to find a lasting and effective treatment. This article reports a case of a 43-year-old patient with palmoplantar hyperhidrosis treated with computed tomography (CT)-guided radiofrequency neurotomy (RFN) of bilateral T3-4 sympathetic chain combined with bilateral L3 sympathetic ganglion. The optimal puncture level and skin entry point were selected, and measurements were taken using a CT tool to determine needle depth, angle, and distance from the midline.

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The diagnostic value of serum Ephrin-A1 in patients with colorectal cancer.

Sci Rep

December 2024

Guangdong Provincial Key Laboratory of Medical Immunology and Molecular Diagnostics, Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Dongguan, China.

Colorectal cancer (CRC) is one of the most common malignant tumors worldwide, with a high incidence rate and mortality. The analysis of serum biomarkers for colorectal cancer diagnosis has attracted more and more attention because of its low cost, repeatability, and quantification. This study was aimed to evaluate the diagnostic performance of serum Ephrin-A1 in patients with CRC.

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Dabrafenib upregulates hypoglycosylated MUC1 and improves the therapeutic efficacy of Tn-MUC1 CAR-T cells.

Sci Bull (Beijing)

December 2024

Breast Cancer Center, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China. Electronic address:

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Chimeric Peptide-Engineered Polyprodrug Enhances Cytotoxic T Cell Response by Inducing Immunogenic Cell Death and Upregulating Major Histocompatibility Complex Class I.

ACS Nano

January 2025

The Fifth Affiliated Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, the School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China.

Tumor-specific cytotoxic T cell immunity is critically dependent on effective antigen presentation and sustained signal transduction. However, this immune response is frequently compromised by the inherently low immunogenicity of breast cancer and the deficiency in major histocompatibility complex class I (MHC-I) expression. Herein, a chimeric peptide-engineered stoichiometric polyprodrug (PDPP) is fabricated to potentiate the cytotoxic T cell response, characterized by a high drug loading capacity and precise stoichiometric drug ratio, of which the immunogenic cell death (ICD) inducer of protoporphyrin IX (PpIX) and the epigenetic drug of decitabine (DAC) are condensed into a polyprodrug called PpIX-DAC.

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E3 ubiquitin ligases have the potential to modulate key oncogenic pathways. RING finger protein 123 (RNF123), as an E3 ubiquitin ligase, has been functioned as a tumor suppressor. This study was designed to explore the role of RNF123 in breast cancer.

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Curcumin prevents neurodegeneration by blocking HDAC6-NLRP3 pathway-dependent neuroinflammation in Parkinson's disease.

Int Immunopharmacol

January 2025

Dongguan Key Laboratory of Environmental Medicine, The First Dongguan Affiliated Hospital, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, PR China. Electronic address:

Curcumin is a hydrophobic polyphenolic compound with potent anti-inflammatory properties. However, whether it can achieve therapeutic effects by alleviating neuroinflammation in patients with Parkinson's disease (PD) and its potential mechanism are still unknown. This study explored the effects of curcumin on neuroinflammation in dopaminergic neurons and deciphered its direct target in the histone deacetylase 6 (HDAC6)-Nucleotide-binding domain, leucine-rich repeat, and pyrin domain-containing protein 3 (NLRP3) pathway, revealing the potential role of curcumin in the treatment of Parkinson's disease.

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Single-cell transcriptomes of dissecting the intra-tumoral heterogeneity of breast cancer microenvironment.

J Cancer Res Clin Oncol

December 2024

Department of Breast Surgery, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), #1, Jiazi Road, Lunjiao, Shunde District, Foshan, 528308, Guangdong Province, China.

Objective: To investigate the mechanism by which heterogeneity in breast cancer developed and acted in single-cell transcriptomes.

Methods: The composition of breast cancer based on the single-cell transcriptomes of 54,055 high-quality cells from clinical specimens of 4 malignant and 4 non-malignant patients were investigated.

Results: We identified six common expression programs and six subtype-specific expression programs form malignant epithelial cells.

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Background: The cancer cell marker poliovirus receptor-like protein 4 (PVRL4) has been shown to be highly expressed in many cancers, including lung cancer. Myeloid-derived suppressor cells (MDSCs) are a population of immature myeloid cells with immunosuppressive roles that can attenuate the anticancer response. Here, the precise functions and the relationship between PVRL4 and MDSCs in lung adenocarcinoma (LUAD) progression were investigated.

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Adverse Effects of Nrf2 in Different Organs and the Related Diseases.

Antioxid Redox Signal

December 2024

Department of Clinical Nutrition, Guangzhou Institute of Disease-Oriented Nutritional Research, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China.

Under normal physiological conditions, Nrf2 undergoes ubiquitination and subsequent proteasome degradation to maintain its basal activity. Oxidative stress can trigger Nrf2 activation, prompting its translocation to the nucleus where it functions as a transcription factor, activating various antioxidant pathways, and conferring antioxidant properties. While extensive research has shown Nrf2's protective role in various diseases, emerging evidence suggests that Nrf2 activation can also produce harmful effects.

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Functional anti-inflammatory mesoporous silica nanoplatform for Synergistic and Targeted abdominal aortic aneurysm treatment.

J Colloid Interface Sci

April 2025

Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. Electronic address:

Abdominal aortic aneurysm (AAA) is a chronic inflammation-driven disease characterized by aortic wall destruction and expansion, leading to high morbidity and mortality. However, previous drug treatments for its common risk factors have not achieved favorable results, and the early prevention and treatment is still the main clinical dilemma. Anti-inflammation therapy is a promising therapeutical method targeting its pathogenesis mechanism, but it has not been explored in depth.

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Theranostic Rhenium(I)-Based ER-Phagy Retardant Promotes Immunogenic Cell Death.

J Med Chem

January 2025

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China.

ER-phagy is a double-edged sword in the occurrence, development, and treatment of cancer; especially, its functions in immunotherapy are still unknown. In this work, we designed a theranostic Re complex () containing a BODIPY-derived ligand and a β-carboline ligand to target the endoplasmic reticulum (ER) and block ER-phagy at the late stages. Interestingly, as validated both in vitro and in vivo, ER-phagy blockage greatly enhances the capability of to induce immunogenic cell death (ICD).

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Current study of pathogenetic mechanisms and therapeutics of chronic atrophic gastritis: a comprehensive review.

Front Cell Dev Biol

December 2024

Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Dongguan, China.

Chronic atrophic gastritis (CAG) is a prevalent digestive system disease characterized by atrophy of the gastric mucosa and the disappearance of inherent gastric glands. According to the theory of Correa's cascade, CAG is an important pathological stage in the transformation from normal condition to gastric carcinoma. In recent years, the global incidence of CAG has been increasing due to pathogenic factors, including infection, bile reflux, and the consumption of processed meats.

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An electrostatic encapsulation strategy to motivate 3D-printed polyelectrolyte scaffolds for repair of osteoporotic bone defects.

Bioact Mater

April 2025

Zhanjiang Key Laboratory of Orthopaedic Technology and Trauma Treatment, Key Laboratory of Traditional Chinese Medicine for the Prevention and Treatment of Infectious Diseases, Guangdong Key Laboratory for Research and Development of Natural Drugs, School of Pharmacy, School of Ocean and Tropical Medicine, The Affiliated Hospital, The Second Affiliated Hospital, Zhanjiang Central Hospital, Guangdong Medical University, Zhanjiang, 524037, China.

Repair of osteoporotic bone defects (OBD) remains a clinical challenge due to dysregulated bone homeostasis, characterized by impaired osteogenesis and excessive osteoclast activity. While drug-loaded 3D-printed scaffolds hold great potential in the restoration of bone homeostasis for enhanced OBD repair, achieving the controlled release and targeted delivery of drugs in a 3D-printed scaffold is still unmet. Herein, we developed an electrostatic encapsulation strategy to motivate 3D-printed polyelectrolyte scaffolds (APS@P) with bone-targeting liposome formulation of salvianolic acid B (SAB-BTL).

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Staphylococcus aureus (S. aureus) is a leading cause of Periprosthetic  joint  infection (PJI), a severe complication after joint arthroplasty. Immunosuppression is a major factor contributing to the infection chronicity of S.

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Metoprolol adverse events and literature analyses: case/non-case analyses using the FDA Adverse Event Reporting System (FAERS).

Expert Opin Drug Saf

December 2024

Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, The First Dongguan Affiliated Hospital, School of Basic Medical Sciences, Guangdong Medical University, Dongguan, China.

Background: In recent years, β-blockers such as metoprolol have been upgraded to first-line antihypertensive drugs. However, metoprolol demonstrates poor prognosis effects on diseases such as stroke. Further clinical application may expand the possibility of its related adverse reactions.

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The abdominal aortic aneurysm (AAA) is a severe and complex condition characterized by the pathological dilation of the abdominal aorta. Current therapeutic strategies are limited, with surgical repair being the most effective intervention due to the lack of medications that can slow aneurysmal expansion or prevent adverse events. In this study, an innovative nanoplatform, Mn-UiO-66-NH@HA, designed to repair vascular smooth muscle cells (VSMCs), and the extracellular matrix (ECM) is developed, thereby enhancing arterial wall integrity.

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Tumor-Targeted Magnetic Micelles for Magnetic Resonance Imaging, Drug Delivery, and Overcoming Multidrug Resistance.

ACS Omega

December 2024

Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China.

Nasopharyngeal carcinoma (NPC) is prevalent in Southern China. Unfortunately, current treatments encounter multidrug resistance (MDR). Overexpression of P-glycoprotein (P-gp), resulting in the efflux of chemotherapy drugs, is one of the significant mechanisms causing MDR.

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[Modified endoscopic mucosal resection for the treatment of early gastrointestinal lesions].

Zhonghua Wei Chang Wai Ke Za Zhi

December 2024

Department of Gastroenterology, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan Eighth People's Hospital, Dongguan523000, China.

To evaluate the clinical efficacy of modified endoscopic mucosal resection (EMR) in the management of early gastrointestinal lesions. Upon endoscopic identification of the lesion, normal saline is injected into the submucosa to establish a fluid cushion, which elevates the lesion's mucosa. Methylene blue may also be applied to improve visualization of the relationship between the submucosa and muscular layer.

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This study aimed to investigate the impact of chronic cerebral hypoperfusion (CCH) on cognitive function, amyloid-β (Aβ) deposition, cellular autophagy, and mitochondrial dynamics in an Alzheimer's disease (AD) mouse model, and to evaluate the intervention effects of autophagy modulation on these outcomes. Utilizing the APP/PS1 mouse model combined with CCH, we assessed cognitive function, Aβ deposition, and the expression levels of relevant proteins through behavioral tests and immunohistochemical analysis. Our findings revealed pronounced cognitive deficits and increased Aβ deposition in the AD + CCH group mice, along with upregulation of mitochondrial fission proteins (Drp1, Fis1) and downregulation of mitochondrial fusion proteins (Opa1, Mfn1), indicating a shift towards mitochondrial fission and promoting cell apoptosis.

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Extraction of American ginseng polysaccharide by ultrasound-assisted deep eutectic solvents-based three-phase partitioning: Process optimization, structural characterization, and anti-ulcerative colitis study.

Ultrason Sonochem

January 2025

The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Dongguan 523808, China. Electronic address:

Three-phase partitioning (TPP) is promising for isolating bioactive polysaccharides, but t-butanol's environmental impact limits its application. Deep eutectic solvents can serve as a green and recyclable alternative to t-butanol. This study introduces an ultrasonic-assisted DES three-phase partitioning (UA-TPP-DES) system to extract and purify American ginseng polysaccharides (AGPs).

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Programmable ultrasound-mediated swarms manipulation of bacteria-red blood cell microrobots for tumor-specific thrombosis and robust photothermal therapy.

Trends Biotechnol

December 2024

Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, PR China; Sino-Euro Center of Biomedicine and Health, Shenzhen 518024, PR China. Electronic address:

Despite the excellent advantages of biomicrorobots, such as autonomous navigation and targeting actuation, effective penetration and retention to deep lesion sites for effective therapy remains a longstanding challenge. Here, we present dual-engine cell microrobots, which we refer to as PR-robots, created by conjugating photosynthetic bacteria (PSB) with red blood cells (RBCs). The robots penetrate the tumor interior in swarms through combined hypoxic traction and ultrasound actuation (UA).

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V-ATPase in cancer: mechanistic insights and therapeutic potentials.

Cell Commun Signal

December 2024

College of Basic Medical Science, Jinzhou Medical University, Jinzhou, Liaoning, China.

Vacuolar-type H+-ATPase (V-ATPase) is a crucial proton pump that plays an essential role in maintaining intracellular pH homeostasis and a variety of physiological processes. This review provides an in-depth exploration of the structural components, functional mechanisms, and regulatory modes of V-ATPase in cancer cells. Comprising two main domains, V and V, V-ATPase drives the proton pump through ATP hydrolysis, sustaining the pH balance within the cell and organelles.

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Calceolarioside B inhibits SARS-CoV-2 Omicron BA.2 variant cell entry and modulates immune response.

Virol J

December 2024

Prenatal Diagnosis Center, Guangzhou Women and Children's Medical Center,, Guangzhou Medical University, Guangzhou, 510623, Guangdong Province, China.

This study evaluated the inhibitory effects of calceolarioside B, extracted from the traditional Chinese herb Mutong (Akebia quinata Thumb), on the SARS-CoV-2 Omicron BA.2 variant. Molecular docking and molecular dynamics simulations predicted the binding sites and interactions between calceolarioside B and the Omicron BA.

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Background: Living near waste incineration plants (WIPs) may have adverse effects on health associated with quality of life (QOL) among local residents. This study was undertaken to measure the QOL of residents living near WIPs in China, identify the association between residential distance from the WIPs and QOL, and assess the mediating effect of respiratory symptoms on the association between residential distance and QOL.

Methods: A cross-sectional study was conducted in communities surrounding three municipal WIPs in Dongguan, China.

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