187 results match your criteria: "Molecular Cancer Research Center[Affiliation]"

Harnessing genetically engineered cell membrane-derived vesicles as biotherapeutics.

Extracell Vesicles Circ Nucl Acids

January 2024

Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Sun Yat-Sen University, Shenzhen 518107, Guangdong, China.

Cell membrane-derived vesicles (CMVs) are particles generated from living cells, including extracellular vesicles (EVs) and artificial extracellular vesicles (aEVs) prepared from cell membranes. CMVs possess considerable potential in drug delivery, regenerative medicine, immunomodulation, disease diagnosis, . owing to their stable lipid bilayer structure, favorable biocompatibility, and low toxicity.

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DHX36 binding induces RNA structurome remodeling and regulates RNA abundance via mA reader YTHDF1.

Nat Commun

November 2024

Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, SAR, China.

RNA structure constitutes a new layer of gene regulatory mechanisms. RNA binding proteins can modulate RNA secondary structures, thus participating in post-transcriptional regulation. The DEAH-box helicase 36 (DHX36) is known to bind and unwind RNA G-quadruplex (rG4) structure but the transcriptome-wide RNA structure remodeling induced by DHX36 binding and the impact on RNA fate remain poorly understood.

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Structure features of FabG and virtual screening of allosteric inhibitors.

Front Mol Biosci

September 2024

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.

, a gram-positive bacterium, is responsible for diverse infections globally, and its antibiotic resistance presents significant challenges to medical advancements. It is imperative to employ various strategies to identify antibiotics. 3-oxoacyl-[acyl-carrier-protein] reductase (FabG) is a key component in the type II fatty acid synthase (FAS II) system, which is a developing target for new anti-streptococcal drugs.

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Article Synopsis
  • * Their structures were determined using various analytical methods like UV, IR, NMR, HRESIMS, and CD spectroscopy.
  • * The compounds showed selective inhibitory activity against DGAT1 with IC values between 60.4 and 84.6 μM, and potential binding sites for one compound were predicted through molecular docking.
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UHRF1-mediated ubiquitination of nonhomologous end joining factor XLF promotes DNA repair in human tumor cells.

J Biol Chem

November 2024

International Cancer Center, Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, Marshall Laboratory of Biomedical Engineering, Department of Biochemistry and Molecular Biology, Shenzhen University Medical School, Shenzhen, China; Department of Hematology, The Second People's Hospital of Shenzhen, Shenzhen, China. Electronic address:

Article Synopsis
  • * The study reveals that UHRF1 interacts with the DNA repair factor XLF after double strand breaks in a specific type of human cells (HeLa).
  • * UHRF1 promotes a unique type of ubiquitination on XLF that boosts its recruitment to DNA damage sites without affecting its stability, highlighting UHRF1's role in enhancing DNA repair in cancer cells.
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Engineered targeting OIP5 sensitizes bladder cancer to chemotherapy resistance via TRIP12-PPP1CB-YBX1 axis.

Oncogene

September 2024

Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China.

Chemoresistance is an important cause of treatment failure in bladder cancer, and identifying genes that confer drug resistance is an important step toward developing new therapeutic strategies to improve treatment outcomes. In the present study, we show that gemcitabine plus cisplatin (GEM/DDP) therapy induces NF-κB signaling, which promotes p65-mediated transcriptional activation of OIP5. OIP5 recruits the E3 ubiquitin ligase TRIP12 to bind to and degrade the phosphatase PPP1CB, thereby enhancing the transcription factor activity of YBX1.

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Jumbo phages are a group of tailed bacteriophages with large genomes and capsids. As a prototype of jumbo phage, ΦKZ infects Pseudomonas aeruginosa, a multi-drug-resistant (MDR) opportunistic pathogen leading to acute or chronic infection in immunocompromised individuals. It holds potential to be used as an antimicrobial agent and as a model for uncovering basic phage biology.

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von Hippel-Lindau (), known as a tumor suppressor gene, is frequently mutated in clear cell renal cell carcinoma (ccRCC). However, mutation is not sufficient to promote tumor formation. In most cases other than ccRCC, loss alters cellular homeostasis and causes cell stress and metabolic changes by stabilizing hypoxia-inducible factor (HIF) levels, resulting in a fitness disadvantage.

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Molecular characterization of the circadian clock in patients with Parkinson's disease-CLOCK4PD Study protocol.

PLoS One

July 2024

Institute for Theoretical Biology (ITB), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.

Introduction: Circadian rhythms (CRs) orchestrate intrinsic 24-hour oscillations which synchronize an organism's physiology and behaviour with respect to daily cycles. CR disruptions have been linked to Parkinson's Disease (PD), the second most prevalent neurodegenerative disorder globally, and are associated to several PD-symptoms such as sleep disturbances. Studying molecular changes of CR offers a potential avenue for unravelling novel insights into the PD progression, symptoms, and can be further used for optimization of treatment strategies.

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Renal cell carcinoma (RCC) represents a significant portion of genitourinary cancers, marked by challenging prognosis and high metastasis rates. Immunotherapy has been applied in managing advanced renal cell carcinoma, but the therapeutic outcomes are unsatisfactory. In this study, we order to construct a Janus kinase/signal transduction and activator transcriptional (JAK/STAT)-related signature linked to kidney patient outcomes for better predicting the efficacy to immune checkpoint inhibitors (ICIs) and to provide guidance for effective combination therapy.

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The three-dimensional (3D) organization of genome is fundamental to cell biology. To explore 3D genome, emerging high-throughput approaches have produced billions of sequencing reads, which is challenging and time-consuming to analyze. Here we present Microcket, a package for mapping and extracting interacting pairs from 3D genomics data, including Hi-C, Micro-C, and derivant protocols.

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In cancer treatment, therapeutic strategies that integrate tumor-specific characteristics (i.e., precision oncology) are widely implemented to provide clinical benefits for cancer patients.

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Enhancing antitumor immunity and achieving tumor eradication with IL11RA mRNA immunotherapy.

Int Immunopharmacol

June 2024

Clinical Molecular Medicine Testing Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Key Laboratory of Major Brain Disease and Aging Research (Ministry of Education), Institute for Brain Science and Disease, Chongqing Medical University, Chongqing 400016, China. Electronic address:

Current methods for delivering genes to target tumors face significant challenges, including off-target effects and immune responses against delivery vectors. In this study, we developed a novel approach using messenger RNA (mRNA) to encode IL11RA for local immunotherapy, aiming to harness the immune system to combat tumors. Our research uncovered a compelling correlation between IL11RA expression and CD8 + T cell levels across multiple tumor types, with elevated IL11RA expression correlating with improved overall survival.

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Molecular mechanisms of tumour development in glioblastoma: an emerging role for the circadian clock.

NPJ Precis Oncol

February 2024

Institute for Systems Medicine and Faculty of Human Medicine, MSH Medical School Hamburg, Hamburg, 20457, Germany.

Glioblastoma is one of the most lethal cancers with current therapeutic options lacking major successes. This underlines the necessity to understand glioblastoma biology on other levels and use these learnings for the development of new therapeutic concepts. Mounting evidence in the field of circadian medicine points to a tight interplay between disturbances of the circadian system and glioblastoma progression.

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Genetic susceptibility and causal pathway analysis of eye disorders coexisting in multiple sclerosis.

Front Immunol

February 2024

Department of Histology and Embryology, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong, China.

Introduction: The comorbidity of optic neuritis with multiple sclerosis has been well recognized. However, the causal association between multiple sclerosis and optic neuritis, as well as other eye disorders, remains incompletely understood. To address these gaps, we investigated the genetically relationship between multiple sclerosis and eye disorders, and explored potential drugs.

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Triple-negative breast cancer (TNBC) is a highly invasive subtype of breast cancer that seriously affects women's physical and mental health. Chemodynamic therapy (CDT) induces cell death by specifically generating Fenton/Fenton-like reactions within tumor cells. However, the weak acidity of the tumor microenvironment (TME) greatly weakens the effectiveness of CDT.

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Nanoreceptors promote mutant p53 protein degradation by mimicking selective autophagy receptors.

Nat Nanotechnol

April 2024

School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China.

Article Synopsis
  • Some cancers have a bad version of a protein called mutant p53 that makes tumors grow and resist drugs.
  • Scientists are working on new tiny tools called nanoreceptors that can help get rid of this bad protein by making it easier for the body to break it down.
  • These nanoreceptors have special parts that stick to the mutant p53 and help speed up its removal, and they showed promise in lab tests and in a special model of ovarian cancer.
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Photodynamic Modulation of Endoplasmic Reticulum and Mitochondria Network Boosted Cancer Immunotherapy.

Adv Mater

January 2024

School of Medicine, School of Biomedical Sciences and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China.

Immunogenic cell death (ICD) represents a promising approach for enhancing tumor therapy efficacy by inducing antitumor immune response. However, current ICD inducers often have insufficient endoplasmic reticulum (ER) enrichment and ineffectiveness in tumor immune escape caused by ER-mitochondria interaction. In this study, a kind of photoactivatable probe, THTTPy-PTSA, which enables sequential targeting of the ER and mitochondria is developed.

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Palmitoylation landscapes across human cancers reveal a role of palmitoylation in tumorigenesis.

J Transl Med

November 2023

Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, No.66, Gongchang Road, Guangming District, Shenzhen, 518107, Guangdong, China.

Article Synopsis
  • Protein palmitoylation involves adding palmitic acid to proteins and is vital for various biological processes, yet its role in human cancers is not fully understood.
  • A comprehensive analysis using multiple datasets revealed that abnormalities in palmitoylation are linked to cancer subtypes, stages, and patient survival, influenced by factors like DNA methylation and Myc regulation.
  • The study suggests that dysregulated palmitoylation affects immune response in tumors and modulates key cancer pathways, with experiments showing that Myc depletion reduces palmitoylation-related gene expression and overall protein palmitoylation.
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Because of the high mortality and morbidity rate of breast cancer, successful management of the disease requires synthesis of novel compounds. To this end, ongoing attempts to create new candidates include synthesis of multinuclear metal complexes. The high DNA binding affinity and cytotoxic activity of these complexes makes them promising as breast cancer treatments.

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Corrigendum to "SCARNA10 regulates p53 acetylation-dependent transcriptional activity".

Biochem Biophys Res Commun

November 2023

Molecular Cancer Research Center, Seventh Affiliated Hospital, School of Medicine, Sun Yat-sen University, Shenzhen, Guangdong, 518107, China. Electronic address:

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Article Synopsis
  • Drosha is a key player in processing primary microRNAs (pri-miRNAs) and regulating about 80 ribosomal protein genes, with mutations in its amino-terminal region linked to a vascular disorder.
  • Researchers created a Drosha mutant (ΔN) lacking the amino-terminal region and found it couldn't process pri-miRNAs, leading to a significant depletion of most miRNAs, except for a specific cluster (miR-183/96/182).
  • The study highlights that ΔN remains stable under nutrient lack, causing increased ribosomal protein production and protein synthesis, thus allowing cells to bypass growth arrest, emphasizing the importance of Drosha-NTR in miRNA production and nutrient-responsive control of translation.
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Precise Interference of RNA-Protein Interaction by CRISPR-Cas13-Mediated Peptide Competition.

ACS Synth Biol

October 2023

Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China.

RNA-protein interactions are essential nodes of cellular regulatory circuits and play critical roles in normal physiology and disease. However, the precise roles of individual RNA-protein interactions remain elusive. Here we report a method for precise interference of endogenous RNA interacting with the RNA binding protein (RBP).

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Nanoparticle (NP)-mediated APOC1 silencing to inhibit MAPK/ERK and NF-κB pathway and suppress breast cancer growth and metastasis.

Sci China Life Sci

November 2023

Department of Biochemistry, Molecular Cancer Research Center, School of Medicine, Sun Yat-sen University, Shenzhen, 518107, China.

Breast cancer is one of the most common malignant tumors with high mortality and poor prognosis in women. There is an urgent need to discover new therapeutic targets for breast cancer metastasis. Herein, we identified that Apolipoprotein C1 (APOC1) was up-regulated in primary tumor of breast cancer patient that recurrence and metastasis by immunohistochemistry (IHC).

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The current gold standard of response assessment in patients with myelodysplastic syndromes (MDS), chronic myelomonocytic leukemia (CMML), and acute myeloid leukemia (AML) is morphologic complete remission (CR) and CR with incomplete count recovery (CRi), both of which require an invasive BM evaluation. Outside of clinical trials, BM evaluations are only performed in ~50% of patients during follow-up, pinpointing a clinical need for response endpoints that do not necessitate BM assessments. We define and validate a new response type termed "peripheral blood complete remission" (PB-CR) that can be determined from the differential blood count and clinical parameters without necessitating a BM assessment.

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