851 results match your criteria: "Guangdong Esophageal Cancer Institute; Sun Yat-sen University Cancer Center[Affiliation]"

Background: Patients with lung adenocarcinoma (LUAD) receiving drug treatment often have an unpredictive response and there is a lack of effective methods to predict treatment outcome for patients. Dendritic cells (DCs) play a significant role in the tumor microenvironment and the DCs-related gene signature may be used to predict treatment outcome. Here, we screened for DC-related genes to construct a prognostic signature to predict prognosis and response to immunotherapy in LUAD patients.

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Aberrant expression of grainyhead-like transcription factor 3 (GRHL3) has been extensively reported in the development and progression of several squamous cell carcinomas, such as cutaneous, head and neck, and esophageal squamous cell carcinoma. However, the clinical significance and biological roles of GRHL3 in lung squamous cell (LUSC) carcinoma are largely unclear. Herein, we report that GRHL3 was significantly upregulated in lung squamous epithelium of LUSC tissues, bronchiole, and bronchus.

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Inactivation of TACC2 epigenetically represses CDKN1A and confers sensitivity to CDK inhibitors.

Med

January 2025

State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China. Electronic address:

Background: The genomic landscape of esophageal squamous cell carcinoma (ESCC) has been characterized extensively, but there remains a significant need for actionable targets and effective therapies.

Methods: Here, we perform integrative analysis of genome-wide loss of heterozygosity and expression to identify potential tumor suppressor genes. The functions and mechanisms of one of the candidates, TACC2, are then explored both in vitro and in vivo, leading to the proposal of a therapeutic strategy based on the concept of synthetic lethality.

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Background: A novel anti-human epidermal growth factor receptor 2 (HER2) antibody-drug conjugate (ADC) GQ1001 was assessed in patients with previously treated HER2 positive advanced solid tumors in a global multi-center phase Ia dose escalation trial.

Methods: In this phase Ia trial, a modified 3 + 3 study design was adopted during dose escalation phase. Eligible patients were enrolled, and GQ1001 monotherapy was administered intravenously every 3 weeks.

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Background: Intratumor-resident bacteria represent an integral component of the tumor microenvironment (TME). Microbial dysbiosis, which refers to an imbalance in the bacterial composition and bacterial metabolic activities, plays an important role in regulating breast cancer development and progression. However, the impact of specific intratumor-resident bacteria on tumor progression and their underlying mechanisms remain elusive.

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Covalent Inhibitor Screening for Targeting LOXL2: Studied by Virtual Screening and Experimental Validation.

Recent Pat Anticancer Drug Discov

January 2025

Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, PR China.

Background: Lysyl oxidase-like 2 (LOXL2) is a metalloenzyme that catalyzes oxidative deamination ε-amino group of lysine. It has been found that LOXL2 is a promotor for the metastasis and invasion in kinds of tumors. Previous studies show that disulfide bonds are important components in LOXL2, and their bioactivity can be regulated by those bonds.

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Background: Immunochemotherapy is inevitably accompanied with treatment-related adverse events (TRAEs). However, TRAEs are typically assessed at a single time point, overlooking the complexity of TRAE trajectories over time. This study aimed to characterize TRAE trajectories during multi-cycle neoadjuvant immunochemotherapy (nICT) and identify potential prognostic factors for patients with esophageal squamous cell carcinoma (ESCC).

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MDRN: Multi-distillation residual network for efficient MR image super-resolution.

Math Biosci Eng

October 2024

State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, Guangdong, China.

Super-resolution (SR) of magnetic resonance imaging (MRI) is gaining increasing attention for being able to provide detailed anatomical information. However, current SR methods often use the complex convolutional network for feature extraction, which is difficult to train and not suitable for limited computation resources in the medical scenario. To tackle these bottlenecks, we propose a multi-distillation residual network (MDRN) for more differential feature refinement, which has a superior trade-off between reconstruction accuracy and computation cost.

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Background: The clinical significance of immuno-inflammatory indicators and the underlying biological basis in patients with esophageal squamous cell carcinoma (ESCC) who receive chemoradiotherapy (CRT) combined with immunotherapy remains unclear. This study aims to evaluate the prognostic value of immuno-inflammatory biomarkers, develop a prognostic model, and explore the underlying mechanisms.

Methods: This study included 212 ESCC patients who received CRT and anti-PD-1 immunotherapy.

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Radiofrequency Ablation Versus Stereotactic Body Radiotherapy for Recurrent Small Hepatocellular Carcinoma: A Randomized, Open-Label, Controlled Trial.

J Clin Oncol

December 2024

State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangdong Provincial Clinical Research Center for Cancer, Guangdong Esophageal Cancer Institute, Guangzhou, China.

Purpose: To assess the efficacy and safety of radiofrequency ablation (RFA) versus stereotactic body radiotherapy (SBRT) in treating recurrent small hepatocellular carcinoma (HCC).

Methods: In this trial, patients with recurrent small HCC (single lesion ≤5 cm) were randomly assigned to receive either SBRT or RFA. The primary end point was local progression-free survival (LPFS), and secondary end points were progression-free survival (PFS), overall survival (OS), local control rate, and safety.

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PPIH Expression Correlates with Tumor Aggressiveness and Immune Dysregulation in Hepatocellular Carcinoma.

J Hepatocell Carcinoma

December 2024

Department of Neurology, Neurological Research Institute of Integrated Traditional Chinese and Western Medicine, First School of Clinical Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510080, People's Republic of China.

Purpose: Hepatocellular Carcinoma (HCC) features a complex pathophysiology and unpredictable immunosuppressive microenvironment, which limit the effectiveness of traditional therapies and lead to poor patient outcomes. Understanding the immune characteristics of HCC is essential for elucidating the immune microenvironment and developing more effective treatments. This study investigates the role of Peptidyl-prolyl isomerase H (PPIH) in HCC by analyzing its expression, prognosis, methylation levels, and relationship with immune cell infiltration.

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Objectives: Resistance to apoptosis in esophageal squamous cell carcinoma (ESCC) constitutes a significant impediment to treatment efficacy. Exploring alternative cell death pathways and their regulatory factors beyond apoptosis is crucial for overcoming drug resistance and enhancing therapeutic outcomes in ESCC.

Methods: Mammalian Ste 20-like kinase 1 (MST1) is implicated in regulating various cell deaths, including apoptosis, autophagy, and pyroptosis.

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Multiomics reveals tumor microenvironment remodeling in locally advanced gastric and gastroesophageal junction cancer following neoadjuvant immunotherapy and chemotherapy.

J Immunother Cancer

December 2024

Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Digestive Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, People's Republic of China

Background: Perioperative chemotherapy is the standard of care for patients with locally advanced gastric and gastroesophageal junction cancer. Recent evidence demonstrated the addition of programmed cell death protein 1 (PD-1) inhibitors enhanced therapeutic efficacy. However, the mechanisms of response and resistance remain largely undefined.

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Identification of key genes to predict response to chemoradiotherapy and prognosis in esophageal squamous cell carcinoma.

Front Mol Biosci

November 2024

State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China.

Article Synopsis
  • * Using the Gene Expression Omnibus database, researchers identified three key genes that can predict how well ESCC patients respond to neoadjuvant chemoradiotherapy and are associated with immune cell activity.
  • * A prognostic nomogram was created that combines these key genes with clinical data, showing reliable predictions for ESCC outcomes while revealing the genes' roles in important tumor signaling pathways, such as epithelial-mesenchymal transition and P53.
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Background: Due to its rarity, it is challenging to predict the survival of patients with synchronous multiple primary esophageal squamous carcinomas (SMPESCs). We aimed to construct nomograms to predict survival outcomes and help to make therapeutic strategy for patients with SMPESCs.

Materials And Methods: The clinical and survival data of 135 patients with SMPESCs were analyzed retrospectively.

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Exploring the Allosteric Response of Fascin to Its Inhibitor.

J Phys Chem B

December 2024

Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, PR China.

Fascin is a major actin-binding protein (ABP) for stabilizing filopodia to support efficient adhesion and migration of cancer cells. Fascin is also highly expressed in metastatic tumors. Disrupting the actin-binding site (ABS) on fascin constitutes a critical approach to hindering tumor metastasis.

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Blockade of purine metabolism reverses macrophage immunosuppression and enhances anti-tumor immunity in non-small cell lung cancer.

Drug Resist Updat

January 2025

Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China; School of Public Health, Zhengzhou University, Zhengzhou, Henan, China. Electronic address:

Aims: Immune checkpoint blockade therapy is not effective in most patients with non-small cell lung cancer (NSCLC) due to the immunosuppressive tumor microenvironment. Macrophages are key components of tumor-infiltrating immune cells and play a critical role in immunosuppression, which can be mediated by cell-intrinsic metabolism. This study aimed to evaluate whether macrophages regulate NSCLC progression through metabolic crosstalk with cancer cells and affect immunotherapy efficacy.

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Background: Previous results of our trial demonstrated that the addition of induction chemotherapy (IC) prior to definitive chemoradiotherapy (CRT) failed to significantly improve the response rate or 3-year survival in patients with locally advanced esophageal squamous cell carcinoma (ESCC). Here, we report long-term results and exploratory analyses to further evaluate the therapeutic value of IC.

Methods: Patients with previously untreated, unresectable, stage II-IVA ESCC were randomly assigned to receive IC followed by CRT or CRT alone.

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Article Synopsis
  • * Results showed that a higher PRS was more strongly related to EGFR-positive LUAD cases (OR=8.63) than to EGFR-negative cases (OR=3.50), indicating a significant association based on mutation status.
  • * These findings imply that genetic susceptibility to LUAD differs in never-smoking East Asian women depending on whether the cancer has specific mutations, which could affect public health strategies and clinical practices.*
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Liquid biopsy to identify Barrett's oesophagus, dysplasia and oesophageal adenocarcinoma: the multicentre study.

Gut

November 2024

Center for Gastrointestinal Research; Center from Translational Genomics and Oncology, Baylor Scott & White Research Institute and Charles A. Sammons Cancer Center, Baylor University Medical Center, Dallas, TX, USA

Background: There is no clinically relevant serological marker for the early detection of oesophageal adenocarcinoma (EAC) and its precursor lesion, Barrett's oesophagus (BE).

Objective: To develop and test a blood-based assay for EAC and BE.

Design: Oesophageal MicroRNAs of BaRRett, Adenocarcinoma and Dysplasia () was a large, international, multicentre biomarker cohort study involving 792 patient samples from 4 countries (NCT06381583) to develop and validate a circulating miRNA signature for the early detection of EAC and high-risk BE.

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GPRC5A promotes lung colonization of esophageal squamous cell carcinoma.

Nat Commun

November 2024

Department of Clinical Oncology, Centre for Cancer Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.

Emerging evidence suggests that cancer cells may disseminate early, prior to the formation of traditional macro-metastases. However, the mechanisms underlying the seeding and transition of early disseminated cancer cells (DCCs) into metastatic tumors remain poorly understood. Through single-cell RNA sequencing, we show that early lung DCCs from esophageal squamous cell carcinoma (ESCC) exhibit a trophoblast-like 'tumor implantation' phenotype, which enhances their dissemination and supports metastatic growth.

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Oesophageal cancer.

Lancet

November 2024

Department of Thoracic Surgery, Sun Ya University Cancer Center, Guangzhou, China; Guangdong Provincial Clinical Research Center for Cancer, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China; Guangdong Esophageal Cancer Institute, Guangzhou, China. Electronic address:

Article Synopsis
  • - Oesophageal cancer ranks as the seventh leading cause of cancer deaths globally and has two main types: squamous cell carcinoma and adenocarcinoma, with the latter showing increasing incidence rates in recent years.
  • - Advances in screening, surgical techniques, and innovative treatments have significantly improved the prognosis for oesophageal cancer, particularly for locally advanced cases treated with a combination of surgery, chemotherapy, and radiotherapy.
  • - The seminar highlights recent developments in the treatment of both subtypes, emphasizing neoadjuvant therapies for advanced cancer and the establishment of immune checkpoint inhibitors as standard care in both adjuvant and first-line metastatic treatment.
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Lympho-myeloid aggregate-infiltrating CD20 B cells display a double-negative phenotype and correlate with poor prognosis in esophageal squamous cell carcinoma.

Transl Res

January 2025

Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Guangdong Esophageal Cancer Research Institute, Shantou Sub-center, Cancer Research Center, Shantou University Medical College, Shantou 515041, Guangdong, PR China. Electronic address:

According to morphological features, tumor-infiltrating B cells (TIL-Bs) can be classified as lympho-myeloid aggregates (LMAs) and tertiary lymphoid structures (TLSs). As a disease with high incidence and mortality, research on esophageal squamous cell carcinoma (ESCC) TIL-Bs is still unclear. Thus, we aimed to investigate the prognostic value and functional involvement of TIL-Bs in ESCC.

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DNA methylation classifier to diagnose pancreatic ductal adenocarcinoma metastases from different anatomical sites.

Clin Epigenetics

November 2024

Institute of Pathology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.

Background: We have recently constructed a DNA methylation classifier that can discriminate between pancreatic ductal adenocarcinoma (PAAD) liver metastasis and intrahepatic cholangiocarcinoma (iCCA) with high accuracy (PAAD-iCCA-Classifier). PAAD is one of the leading causes of cancer of unknown primary and diagnosis is based on exclusion of other malignancies. Therefore, our focus was to investigate whether the PAAD-iCCA-Classifier can be used to diagnose PAAD metastases from other sites.

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